WO2018129709A1

WO2018129709A1 - Ratchet screwdriver

Info

Publication number: WO2018129709A1
Application number: PCT/CN2017/071101
Authority: WO
Inventors: 王伟毅
Original assignee: 杭州巨星工具有限公司; 杭州巨星科技股份有限公司
Priority date: 2017-01-13
Filing date: 2017-01-13
Publication date: 2018-07-19

Abstract

A ratchet screwdriver. The clutch assembly (20) is disposed in the grip handle (10) and is sleeved on a main shaft (11) of the grip handle (10). The control assembly (30) is then movably disposed on the grip handle (10), so that the control assembly (30) moves to a first position, a second position, or a third position relative to the grip handle (10). When the control assembly (30) is located at the first position, the control assembly (30) can control a clutch assembly (20) to allow the main shaft (11) to be located at a first gear position. When the control assembly (30) is located at the second position, the control assembly (30) can control the clutch assembly (20) to allow the main shaft (11) to rotate along a first rotation direction, so as to form a second gear position. When the control assembly (30) is located at the third position, the control assembly (30) can control the clutch assembly (20) to allow the main shaft (11) to rotates along a second rotational direction, so as to form a third gear position, thereby achieving a beneficial effect for facilitating operations.

Description

Ratchet screwdriver

Technical field

The present invention relates to a hand tool, and more particularly to a ratchet screwdriver that can change a plurality of gear positions.

Background technique

The ratchet structure is a structure for modulating the direction of the cassette. Since it allows the user to determine the direction of the click and the idling according to the requirements, it can be easily rotated by a locking tool such as a nut or a screw. It is widely used in various types of hand tools such as screwdrivers, and such a ratchet structure can be applied to a general screwdriver, and the ratchet structure generally used on a screwdriver is usually different due to space and operation. By directly manipulating the screwdriver lever to determine the direction of the click or idling, there are usually only two positioning points, and the stagnation point of the middle section cannot be provided, so that both the positive and negative directions are idling, and at the same time due to the ratchet The positioning is operated by the batch rod body. Therefore, in the process of rotation, the phenomenon that the ratchet block rotates together with the batch rod body often occurs, causing the occurrence of malfunction and the like, which seriously affects the convenience of using the screwdriver.

Through the above description, we can understand that, due to the imperfect design of the ratchet structure of the conventionally used screwdriver, overall, there are problems such as inconvenience in operation, which affects the economic value of the product, so how Overcoming the above problems is a place that those skilled in the art need to pay close attention to.

Summary of the invention

The technical problem to be solved by the present invention is to provide a ratchet screwdriver that controls the three gear positions of the clutch by the clutch assembly.

In order to solve the above technical problems, the present invention proposes a ratchet screwdriver:

a handle provided with a spindle;

a clutch assembly disposed inside the handle and sleeved on the spindle;

a control assembly disposed to the handle in a movable relationship, the control assembly being displaced relative to the handle to a first position, a second position, or a third position, the control assembly and the clutch assembly being grouped with each other When the control component is in the first position, the control component controls the clutch component such that the spindle is in a first gear position; when the control component is in the second position, the control component controls The clutch assembly rotates the spindle in a first rotational direction to form a second gear position; when the control assembly is in the third position, the control assembly controls the clutch assembly such that the spindle moves along The second direction of rotation is rotated to form a third gear position.

Further, an inner portion of the handle is formed with an assembly groove for the clutch assembly to be disposed therein, the handle having an end cover for closing an opening of the assembly slot, the end cover having a through Hole for the said The main shaft is threaded therein.

Further, the clutch assembly includes: a first ratchet member; a second ratchet member; a shaft sleeve for assembling inside the handle; and an inner ratchet kit for connecting the control assembly, The inner ratchet kit has a first accommodating groove, a second accommodating groove and a third accommodating groove, and the first accommodating groove is formed on one side of the inner ratchet kit, the first a receiving groove is disposed in the first ratchet member, and the second receiving groove and the third receiving groove are formed on the other side of the inner ratchet kit, the second A receiving groove is provided for the second ratchet member to be assembled therein, and the third receiving groove is for one end of the shaft sleeve to be assembled therein.

Further, an inner wall surface of the first accommodating groove is formed with a first ratchet end surface, and the number and direction of the first ratchet end surface are matched with the first ratchet member, and the second accommodating groove The inner wall surface forms a second ratchet end face, and the number and direction of the second ratchet end faces are matched to the second ratchet member.

Further, the clutch assembly further includes a first elastic member, and the first elastic member is configured to elastically resist between the end cover and the first ratchet member such that the first ratchet member Maintaining the meshing state with the first ratchet end face normally.

Further, the clutch assembly further includes a second elastic member for elastically resisting between the second ratchet member and the shaft sleeve such that the second ratchet member and the The second ratchet end face is normally maintained in the engaged state. .

Further, the ratchet direction of the first ratchet member is opposite to the ratchet direction of the second ratchet member.

Further, one end of the shaft sleeve has a head for being assembled in the third receiving groove, and the other end of the shaft set has at least a hook portion, and the hook portion is formed on the shaft sleeve The outer side wall surface is in a state of tight engagement with the inner side wall surface of the inside of the grip by the hook portion.

Further, the inside of the shaft sleeve has a through hole for the spindle to be inserted therein.

Further, the first ratchet member has a first perforation, and the first perforation is opened at a central position of the first ratchet member for the main shaft to penetrate therein.

Further, the second ratchet member has a second through hole, and the second through hole is opened at a central position of the second ratchet member for the main shaft to penetrate therein.

Further, the control component includes: a dial disposed on the surface of the grip and displaced relative to the grip to the first position, the second position or the third position, the dial Having a first locking hole; and a locking member for passing through the first locking hole and interlocking with a second locking hole of the inner ratchet kit, the button being passed through the locking member The inner ratchet kit is driven to synchronously move the first position, the second position, or the third position.

Further, when the dial is in the first position, the first ratchet member and the first ratchet end face are normally in meshing state, the second ratchet member and the second spine The tooth end faces are normally in an engaged state such that the clutch assembly maintains the locked state and does not drive the spindle to rotate such that the spindle remains in the first gear position.

Further, when the dial is in the second position, the dial drives the inner ratchet kit toward the front Displacement of the first ratchet member, the first ratchet member is in close mesh with the first ratchet end surface, and the second ratchet end surface is disengaged from the second ratchet member, the first spine The tooth member and the inner ratchet kit drive the spindle to remain in the second gear position.

Further, when the dial is in the third position, the dial drives the inner ratchet kit to be displaced toward the second ratchet member, and the second ratchet member and the second spine The tooth end faces are tightly engaged, the first ratchet end faces are disengaged from the first ratchet member, and the second ratchet member and the inner ratchet kit drive the spindle to remain in the third gear position.

Further, the clutch assembly includes: an inner ratchet kit having a receiving groove, the inner wall surface of the receiving groove is surrounded by a plurality of ratchet teeth; and a shaft sleeve for assembling inside the handle, The shaft assembly has a head, the head group is disposed in the accommodating groove, the head has a first slot and a second slot, and the first slot and the second slot The first ratchet member is pivotally connected to the first slot; the second ratchet member is pivotally connected to the second slot The first ratchet member and the second ratchet member are respectively rotatably displaced to an engaged position intermeshing with the plurality of ratchet teeth and a release position away from the plurality of ratchet teeth.

Further, the inner ratchet kit has a first perforation opening in a central position of the inner ratchet kit for the main shaft to pass therethrough.

Further, the other end of the shaft sleeve has at least one hook portion formed on an outer wall surface of the shaft sleeve, and the hook portion forms a tight fit with the inner wall surface of the inside of the grip status.

Further, the clutch assembly further includes a first elastic member, one end of the first elastic member abuts on the first ratchet member, and the other end abuts on the second ratchet member The elastic force of the first elastic member is such that the first ratchet member and the second ratchet member are normally maintained in the engaged position.

Further, the control component includes: a buckle ring disposed in the buckle groove of the head, and a pushing portion extending from the two ends of the buckle ring, and the pushing of the two ends of the buckle ring The abutting portions respectively correspond to the first slot and the second slot; the collar is sleeved on the head and is coupled to the buckle, the collar has a through hole; And a rod member, the rod member is connected to the buckle through the through hole, and the buckle is driven to move the fan ring in the buckle groove by pushing the button and the rod member, so that The pushing portions of the two ends of the buckle respectively drive the first ratchet member and the second ratchet member to rotate.

Further, the surface of the buckle has a plurality of first latches, and the collar has a plurality of second latches, and the plurality of second latches and the plurality of first latches are engaged with each other.

Further, the buckle groove has a flange therein, and the flange is pushed by the pushing portion of the two ends of the buckle to drive the shaft sleeve to synchronize with the buckle sector.

Further, the collar has a plurality of limiting ball slots, and the head portion is provided with a receiving groove corresponding to the limiting ball slot, and the receiving groove has a ball and a second elastic member therein. One end of the two elastic members abuts against the inner wall surface of the receiving groove, and the other end abuts against the ball, and the second elastic member normally elastically pushes against the roller The beads are held in the corresponding limit ball slots.

Further, when the dial is in the first position, the first ratchet member and the second ratchet member are respectively held in the engaged position, so that the clutch assembly is kept in a locked state and cannot be driven. The spindle rotates such that the spindle remains in the first gear position.

Further, when the dial is in the second position, the lever of the dial drives the buckle to be fan-shaped displacement in the buckle groove, and the pushing end of one end of the buckle Pushing the first ratchet member to be rotationally displaced from the engaged position to the release position such that the first ratchet member actively engages the second ratchet member to hold the spindle in the second position Gear position.

Further, when the dial is in the third position, the lever of the dial drives the buckle to be fan-shaped displacement in the buckle groove, and the pushing of one end of the buckle Pushing the second ratchet member to be rotationally displaced from the engaged position to the release position such that the second ratchet member actively holds the spindle with the first ratchet member held in the third Gear position.

Further, the clutch assembly includes: an inner transmission kit having a first perforation and a plurality of curved walls, the first perforation being opened at a central position of the inner transmission kit for the main shaft to penetrate therein a plurality of curved walls extending from one side of the inner transmission kit and surrounding the first perforation, each of the plurality of curved walls having a rolling groove; at least one roller set, including a roller, a second roller and a first elastic member, wherein the first roller and the second roller are respectively located at opposite ends of the rolling groove, and one end of the first elastic member abuts against the first roller The other end is abutted on the second roller; and a shaft sleeve internally defines a first receiving groove and a second receiving groove, the plurality of curved walls of the inner transmission kit and the at least one roller The assembly is assembled in the first accommodating groove, and the body of the inner transmission kit is assembled in the second accommodating groove.

Further, the inner wall surface of the second accommodating groove has a plurality of limiting ball slots, and the inner transmission sleeve is provided with a receiving groove, and the accommodating groove internally houses a ball and a second elastic member, and the second elastic One end of the piece abuts against the inner wall surface of the receiving groove, and the other end abuts against the ball, so that the second elastic member elastically pushes against the ball in a normal state and remains in the corresponding limit ball groove.

Further, one end of the shaft set has at least a block formed on an outer wall surface of the shaft sleeve, and the insert forms a state of tight engagement with an inner side wall surface of the inside of the handle.

Further, the inside of the shaft sleeve has a through hole that communicates with the first accommodating groove, and the through hole is used for the main shaft to be inserted therein.

Further, the control assembly includes: an end kit having at least one plug portion, the inner drive kit having at least one slot, the plug portion being disposed in the corresponding slot; and a dial button Having a rod that is interconnected with the end piece after passing through the handle, and the end sleeve is rotationally displaced by pushing the dial and the rod, the end kit The socket pushes the plurality of curved walls in the same direction in the slot such that the inner drive kit is driven by the end kit to synchronize rotational displacement.

Further, the end kit has a second perforation for the spindle to be threaded therein.

Further, when the dial is in the first position, the first roller and the second roller are respectively The state is maintained on opposite sides of the rolling groove such that the clutch assembly maintains the locked state and does not drive the spindle to rotate, so that the spindle remains in the first gear position.

Further, when the dial is in the second position, the lever of the dial drives the end sleeve to be rotationally displaced, so that the plurality of curved walls of the inner transmission kit respectively push corresponding The first roller is rollingly displaced toward the second roller such that the first roller actively holds the spindle in the second gear position with the second roller.

Further, when the dial is in the third position, the lever of the dial drives the end sleeve to be rotationally displaced, so that the plurality of curved walls of the inner transmission kit respectively push corresponding The second roller is rollingly displaced toward the first roller such that the second roller actively holds the spindle in the third gear position with the first roller.

The ratchet screwdriver proposed by the invention is switched at three positions of the grip by the toggle control assembly to control the three gear positions of the clutch assembly to the main shaft, thereby achieving the purpose of easy operation and being less prone to malfunction or looseness. Phenomenon, which enhances the authenticity of its movements and enhances the convenience of handling.

The technical concept and specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

DRAWINGS

Figure 1 is a schematic view showing the assembly of a ratchet screwdriver of a first embodiment of the present invention;

Figure 2 is a sectional view showing the combination of a ratchet screwdriver of the first embodiment of the present invention;

Figure 3 is an exploded perspective view of the ratchet screwdriver of the first embodiment of the present invention;

Figure 4 is an exploded cross-sectional view showing the ratchet screwdriver of the first embodiment of the present invention;

5A and 5C are schematic views showing the operation of the ratchet screwdriver of the first embodiment of the present invention;

Figure 6 is a schematic view showing the assembly of a ratchet screwdriver of a second embodiment of the present invention;

Figure 7 is a sectional view showing the combination of a ratchet screwdriver of a second embodiment of the present invention;

Figure 8 is an exploded cross-sectional view showing a ratchet screwdriver of a second embodiment of the present invention;

9A to 9C are cross-sectional views showing the operation of Fig. 7 in the A-A direction of the present invention;

10A to 10C are cross-sectional views of the operation of Fig. 7 in the direction of B-B of the present invention;

Figure 11 is a schematic view showing the assembly of a ratchet screwdriver of a second embodiment of the present invention;

Figure 12 is a sectional view showing the combination of a ratchet screwdriver of a second embodiment of the present invention;

Figure 13 is an exploded cross-sectional view showing a ratchet screwdriver of a second embodiment of the present invention;

14A to 14C are cross-sectional views showing the action of Fig. 12 in the A-A direction of the present invention;

15A to 15C are cross-sectional views of the operation of Fig. 12 in the direction of B-B of the present invention;

16A to 16C are cross-sectional views showing the operation of Fig. 12 in the C-C direction of the present invention.

detailed description

For convenience of explanation, the X, Y, and Z indicated in the figure are the first direction, the second direction, and the third direction, respectively. And the first direction, the second direction, and the third direction are perpendicular to each other.

1 through 4 illustrate a first embodiment configuration of a ratchet screwdriver of the present invention including a handle 10, a clutch assembly 20, and a control assembly 30. The front end of the handle 10 is provided with a main shaft 11 , and the main shaft 11 can be connected with the handle 10 to form a screwdriver structure, but not limited thereto. The main shaft 11 is usually a rod-shaped member mainly used for tightening or loosening the screw. An interior of the handle 10 is formed with an assembly slot 12 for the clutch assembly 20 to be disposed therein. Further, the grip 10 has an end cap 13 for closing the opening of the assembly groove 12, and the end cap 13 has a through hole 131 for the main shaft 11 to be inserted therein. The surface of the handle 10 is provided with a sliding groove 14 for the control assembly 30 to be coupled to the clutch assembly 20 through the sliding groove 14.

The clutch assembly 20 includes an inner ratchet kit 21, a shaft sleeve 22, a first ratchet member 23, and a second ratchet member 24. The inner ratchet kit 21 has a first accommodating groove 211, a second accommodating groove 212, and a third accommodating groove 213. The first accommodating groove 211 is formed on one side of the inner ratchet kit 21, and The first receiving groove 211 allows the first ratchet member 23 to be assembled therein. The second accommodating groove 212 and the third accommodating groove 213 are formed on the other side of the inner ratchet kit 21, and the second accommodating groove 212 and the third accommodating groove 213 are connected to each other, and the second accommodating groove The volume of 212 is smaller than the volume of the third accommodating groove 213, the second accommodating groove 212 is for the second ratchet member 24 to be assembled therein, and the third accommodating groove 213 is for assembling one end of the shaft assembly 22 therein. . In addition, the clutch assembly 20 further includes a first elastic member 25 for elastically resisting between the end cover 13 and the first ratchet member 23, and a second elastic member 26 for the second elastic member 26 for The spring is resisted between the second ratchet member 24 and the shaft sleeve 22.

The inner wall surface of the first accommodating groove 211 of the inner ratchet kit 21 is formed with a first ratchet end surface 214, and the number and direction of the first ratchet end surfaces 214 are matched to the first ratchet member 23. The inner wall surface of the second accommodating groove 212 also forms a second ratchet end surface 215, and the number and direction of the second ratchet end surface 215 also match the second ratchet member 24. In the present embodiment, the ratchet direction of the first ratchet member 23 is opposite to the ratchet direction of the second ratchet member 24.

One end of the shaft sleeve 22 has a head 221 for assembling into the third receiving groove 213 of the inner ratchet kit 21. The other end of the shaft sleeve 22 has at least one hook portion 222 formed on the outer wall surface of the shaft sleeve 22. When the shaft assembly 22 is assembled to the assembly groove 12 of the handle 10, the hook portion 222 of the shaft assembly 22 is passed. A state of tight engagement with the inner side wall surface of the assembly groove 12 allows the shaft sleeve 22 to be securely mounted inside the assembly groove 12 of the handle 10. In addition, the inside of the shaft set 22 has a through hole 223 for the main shaft 11 to be inserted therein.

The first ratchet member 23 has a first through hole 231 which is opened at a central position of the first ratchet member 23 for the spindle 11 to pass therethrough. Similarly, the second ratchet member 24 has a second through hole 241 which is opened at a central position of the second ratchet member 24 for the spindle 11 to pass therethrough.

The control assembly 30 includes a dial 31 and a lock 32. The dial 31 has a first locking hole 311 for the locking member 32 to pass therethrough, and the inner ratchet kit 21 has a second locking hole 216 corresponding to the position of the locking member 32. When the dial 31 of the control unit 30 is mounted on the surface of the handle 10, the lock 32 can be inserted into the first locking hole 311 of the dial 31 and then locked into the second locking hole 216 of the inner ratchet kit 21. . Thus, when the user operates the dial 31 to be displaced relative to the surface of the handle 10, the internal ratchet kit 21 can be moved synchronously through the lock 32.

As shown in FIG. 5A, when the clutch assembly 20 is assembled inside the handle 10, it can be seen that the spindle 11 extends through the end cap. a through hole 131 of the first ratchet member 23, a second through hole 241 of the second ratchet member 24, and a through hole 223 of the shaft sleeve 22, so that the clutch assembly 20 is mounted on the handle 10. It is assembled in the tank 12. The first ratchet member 23 is located in the first receiving groove 211 such that one end of the first elastic member 25 abuts against the first ratchet member 23 and the other end abuts at the end cover 13. The second ratchet member 24 is located in the second receiving groove 212. One end of the second elastic member 26 abuts against the second ratchet member 24, and the other end abuts against the head portion 221 of the shaft sleeve 22. The dial 31 of the control assembly 30 is located on the surface of the handle 10 and is locked into the second locking hole 216 of the inner ratchet kit 21 by the fastener 32 passing through the first locking hole 311, so that the control assembly 30 is assembled with the clutch assembly 20.

As shown in FIGS. 5A to 5C, when the user dials the dial 31 of the control unit 30, the dial 31 can be displaced relative to the surface of the handle 10 to the first position, the second position, and the third position. As shown in FIG. 5A, when the dial 31 is in the first position, the control assembly 30 can drive the clutch assembly 20 to position the spindle 11 in the first gear position. In detail, in the case where the control assembly 30 is not operated, the dial 31 does not drive the inner ratchet kit 21 to move, so that the first elastic member 25 is elastically urged against the first ratchet member 23 and the first ratchet end surface 214. Normally, the intermeshing state is maintained. Similarly, the second elastic member 26 is also urged by the elastic force to maintain the intermeshing state of the second ratchet member 24 and the second ratchet end surface 215 in a normal state. Thus, the clutch assembly 20 is held in the locked state and the spindle 11 cannot be rotated, so that the spindle 11 is maintained in the first gear position.

As shown in FIG. 5B, when the user pushes the dial 31 to move to the second position, the dial 31 drives the inner ratchet kit 21 to be displaced toward the first ratchet member 23, so that the first elastic member 25 is biased by the first ratchet. The member 23 is pressed and deformed, and the first ratchet member 23 can be more tightly engaged with the first ratchet end surface 214 by the elastic force of the first elastic member 25. At the same time, during the movement of the inner ratchet kit 21 toward the first ratchet member 23, the second ratchet end surface 215 of the inner ratchet kit 21 is disengaged from the second ratchet member 24, so that the second ratchet member 24 can be released. Engaged state. Thus, when the handle 10 is rotated in the first rotation direction, the inner ratchet kit 21 can be driven to rotate in the same direction, thereby driving the first ratchet member 23 and the main shaft 11 meshing with the inner ratchet kit 21 toward the first rotation direction. Rotate to form a second gear position.

As shown in FIG. 5C, when the user pushes the dial 31 to move to the third position, the dial 31 drives the inner ratchet kit 21 to be displaced toward the second ratchet member 24, so that the second elastic member 26 is biased by the second ratchet. The piece 24 is press-deformed and the second ratchet member 24 can be more tightly engaged with the second ratchet end surface 215 by the elastic force of the second elastic member 26. During movement of the inner ratchet kit 21 toward the second ratchet member 24, the first ratchet end 214 of the inner ratchet kit 21 is detached from the first ratchet member 23 such that the first ratchet member 23 is disengageable. status. Thus, when the handle 10 is rotated in the second rotation direction, the inner ratchet kit 21 can be driven to rotate in the same direction, thereby driving the second ratchet member 24 and the main shaft 11 meshing with the inner ratchet kit 21 toward the second rotation direction. Rotate to form a third gear position. .

6 to FIG. 10C show the configuration of the second embodiment of the ratchet screwdriver of the present invention, and the specific embodiment thereof is substantially the same as the first embodiment described above, and the following description is only for differences, and the rest will not be described again. .

The clutch assembly includes an inner ratchet kit 41, a shaft sleeve 42, a first ratchet member 43, and a second ratchet member 44. The inner ratchet kit 41 has a receiving groove 411. The inner wall surface of the receiving groove 411 is surrounded by a plurality of ratchet teeth 412, and a first through hole 413 is opened at a central position of the inner ratchet kit 41 for the spindle 11 Throughout it. One end of the shaft sleeve 42 has a head portion 421 for being assembled in the receiving groove 411 of the inner ratchet kit 41. Another of the shaft kit 42 The end portion has at least one hook portion 422 formed on the outer wall surface of the shaft sleeve 42. When the shaft assembly 42 is assembled on the assembly groove 12 of the handle 10, the hook portion 422 of the shaft assembly 42 and the assembly groove 12 are assembled. The inner wall surface forms a state of tight fit such that the shaft sleeve 42 can be securely mounted within the assembly slot 12 of the handle 101.

As shown in FIG. 9A, the head portion 421 of the shaft sleeve 42 has a first slot 423 and a second slot 424. The first slot 423 and the second slot 424 are respectively defined on opposite sides of the head 421. side. The positions of the first slot 423 and the second slot 424 respectively correspond to the plurality of ratchet teeth 412 of the inner ratchet kit 41. The first slot 423 is configured to pivotally connect the first ratchet member 43 such that the first ratchet member 43 is rotationally displaceable in the first slot 423. Similarly, the second ratchet member 44 is pivotally connected to the second slot 424 such that the second ratchet member 44 can also be rotationally displaced in the second slot 424. In addition, the shaft sleeve 42 has a through hole 425. The through hole 425 communicates with the first slot 423 and the second slot 424. The through hole 425 is used for the spindle 11 to pass through.

The first ratchet member 43 and the second ratchet member 44 are respectively pivotally connected to the corresponding first slot 423 and second slot 424 by a rotating shaft 45. The first ratchet member 43 and the second ratchet member 44 are respectively rotatably displaced to the engaged position and the released position, and when the first ratchet member 43 is rotationally displaced to the engaged position, the first ratchet member 43 and the inner spine can be caused The corresponding ratchet teeth 412 of the tooth set 41 are in mesh with each other, and when the first ratchet member 43 is rotationally displaced to the release position, the first ratchet member 43 can be caused to move away from the corresponding ratchet teeth 412 of the inner ratchet kit 41. Similarly, when the second ratchet member 44 is rotationally displaced to the engaged position, the second ratchet member 44 can be engaged with the corresponding ratchet teeth 412 of the inner ratchet kit 41 when the second ratchet member 44 is rotationally displaced to release In position, the second ratchet member 44 can be moved away from the corresponding ratchet 412 of the inner ratchet kit 41. In addition, a first elastic member 46 is disposed between the first ratchet member 43 and the second ratchet member 44. One end of the first elastic member 46 abuts against the first ratchet member 43 and the other end abuts On the two ratchet members 44, the first ratchet member 43 and the second ratchet member 44 are normally held in the engaged position by the elastic force of the first elastic member 46.

As shown in FIG. 10A, the control assembly includes a buckle 51, a collar 52 and a dial 53. The buckle 51 is assembled on the shaft sleeve 42. The head 421 of the shaft sleeve 42 is provided with a buckle groove 426. 426 is available for the buckle 51 to be attached thereto. A plurality of first latching teeth 511 are formed on the surface of the retaining ring 51, and a pushing portion 512 is respectively extended at the two ends of the retaining ring 51. After the retaining ring 51 is disposed on the latching groove 426, the pushing end of the two ends of the retaining ring 51 512 are located at the openings of the first slot 423 and the second slot 424, respectively. The collar 52 has a plurality of second latching teeth 521, and the collar 52 is sleeved on the head portion 421 of the shaft sleeve 42 and assembled with the buckle ring 51 such that the plurality of second latching teeth 521 of the collar 52 are The plurality of first latching teeth 511 of the buckle 51 are engaged with each other. The dial 53 has a rod 531. The collar 52 is provided with a through hole 522 corresponding to the rod 531. The rod 531 of the dial 53 is connected to the buckle 51 through the through hole 522, and the push button 53 and the rod 531 are pushed. The buckle 51 is fan-shaped in the buckle groove 426. In addition, the buckle groove 426 has a flange 427 therein, and the flange 427 is pushed by the pushing portion 512 of the buckle 51 to drive the shaft sleeve 42 to be synchronously displaced with the buckle 51.

As shown in FIG. 10A, the other inner wall surface of the collar 52 away from the second latch 521 has at least one limiting ball slot 523, and the head 421 of the shaft sleeve 42 defines a receiving slot 428 corresponding to the limiting ball slot 523. The ball 524 and the second elastic member 525 are housed in the housing groove 428. One end of the second elastic member 525 abuts against the inner wall surface of the housing groove 428, and the other end abuts against the ball 524. The normal elastic pushing of the second elastic member 525 against the ball 524 is retained in the corresponding limiting ball slot 523.

As shown in FIG. 7, when the clutch assembly is assembled to the handle 10, it can be seen that the spindle 11 penetrates the through hole 131 of the end cover 13, the first through hole 413 of the inner ratchet kit 41, and the through hole 425 of the shaft sleeve 42 to The clutch assembly is mounted in the assembly slot 12 of the handle 10. As shown in FIG. 9A, the first ratchet member 43 is pivotally connected in the first slot 423, and the second ratchet member 44 is pivotally connected in the second slot 424 and the two ends of the first elastic member 46 are disposed. The first ratchet member 43 and the second ratchet member 44 are respectively resisted. As shown in FIG. 10A, the dial 53 of the control unit is located on the surface of the handle 10, and the rod 531 of the dial 53 passes through the through hole 522 of the collar 52 and is then connected to the buckle 51, and is fastened with a buckle. The 51 sets are attached to the head 421 of the inner ratchet kit 41 such that the control assembly is coupled to the inner ratchet kit 41.

The user can toggle the dial 53 of the control assembly such that the dial 53 can be displaced relative to the surface of the handle 10 to the first position, the second position, and the third position. As shown in FIG. 9A and FIG. 10A, when the dial 53 of the control assembly is in the first position, the buckle 51 of the control assembly can drive the clutch assembly 30 to position the spindle 11 in the first gear position. In detail, in the case where the control assembly is not operated, the buckle 51 of the control assembly does not drive the inner ratchet kit 41 to rotate axially, so that the first elastic member 46 is elastically urged against the first ratchet member 43 and the inner spine The corresponding ratchets 412 of the tooth set 41 are normally in a state of mutual engagement. Similarly, the first elastic members 46 are also urged against the second ratchet member 44 and the corresponding ratchets 412 of the inner ratchet kit 41 in a normal state. Engaged state. In this way, the clutch assembly is held in the locked state and the spindle cannot be rotated, so that the spindle 11 is maintained in the first gear position. In addition, the ball 524 is normally held in the limit ball slot 523 of the first gear position by the elasticity of the second elastic member 525.

As shown in FIG. 9B and FIG. 10B, when the user pushes the dial button 53 to move to the second position, the lever member 531 of the dial 53 drives the buckle 51 to be fan-shapedly displaced in the buckle groove 426, and the one end of the buckle 51 is pushed. The abutting portion 512 pushes the first ratchet member 43 to be rotationally displaced from the engaged position to the release position, so that the first ratchet member 43 is disengaged and the first elastic member 46 is pressed and deformed by the first ratchet member 43 to The first ratchet member 43 actively grips the main shaft 11 with the second ratchet member 44. Thus, when the handle 10 is rotated in the first rotation direction, the spindle 11 can be rotated by the first ratchet member 43 in the first rotation direction to form the second gear position.

At the same time, the buckle 51 synchronously pushes the flange 427 with the same pushing portion 512, so that the shaft sleeve 42 is driven by the pushing portion 512 to rotate in the first rotational direction. Due to the axial rotation of the shaft sleeve 42, the inner wall surface of the shaft sleeve 42 is pushed against the ball 524 to be disengaged from the corresponding limit ball slot 523, so that the ball 524 is released from the limit state and enters the receiving groove 428 and squeezes the second. Elastic member 525. As shown in FIG. 10B, when the shaft assembly 42 is rotated by the control assembly 30 to rotate in the first rotational direction, the ball 524 is elastically pushed by the second elastic member 525 to enter the second position limit ball slot 523. Inside.

As shown in FIG. 9C and FIG. 10C, when the user pushes the dial button 53 to move to the third position, the lever member 531 of the dial 53 drives the buckle 51 to be fan-shapedly displaced in the buckle groove 426, and the other end of the buckle 51 is pushed. The abutting portion 512 pushes the second ratchet member 44 to be rotationally displaced from the engaged position to the release position, so that the second ratchet member 44 is disengaged and the first elastic member 46 is pressed and deformed by the second ratchet member 44. The second ratchet member 44 is actively engaged with the first ratchet member 43 to clamp the spindle 11. Thus, when the handle 10 is rotated in the second rotation direction, the spindle 11 can be rotated by the second ratchet member 44 toward the second rotation direction to form a third gear position.

At the same time, the buckle 51 simultaneously pushes the flange 427 with the same other pushing portion 512, so that the shaft sleeve 42 is The pushing portion 512 is rotated to rotate in the second rotation direction. Due to the axial rotation of the shaft sleeve 42, the inner wall surface of the shaft sleeve 42 is pushed against the ball 524 to be disengaged from the corresponding limit ball slot 523, so that the ball 524 is released from the limit state and enters the receiving groove 428 and squeezes the second. Elastic member 525. As shown in FIG. 10C, when the shaft assembly 42 is rotated by the control unit 30 and rotated in the second rotation direction, the ball 524 is elastically pushed by the second elastic member 525 to enter the third position limit ball slot 523. Inside.

11 to FIG. 12 show the configuration of the third embodiment of the ratchet screwdriver of the present invention, and the specific embodiment thereof is substantially the same as the first embodiment described above, and the following description is only for differences, and the rest will not be described again. .

The clutch assembly includes an inner drive assembly 61, a shaft assembly 62, and at least a roller set 63. The inner transmission kit 61 has a first through hole 611, a plurality of curved walls 612 and at least one slot 613. The first through hole 611 is opened at a central position of the inner transmission kit 61 for the main shaft 11 to pass therethrough. A plurality of curved walls 612 extend from one side of the inner drive set 61 and surround the first perforations 611. Each of the curved walls 612 has a rolling groove 614 therebetween for the corresponding roller set 63 to be placed therein. Corresponding to the scroll slot 614. In addition, a slot 613 is defined on the other side of the inner drive assembly 60, and a slot 613 is provided for the control assembly to be coupled therein.

The first accommodating groove 621 and the second accommodating groove 622 are smaller than the second accommodating groove 622, and the first accommodating groove 621 and the second The shape of the receiving groove 622 is matched to the shape of the inner transmission kit 61 for the inner transmission kit 61 to be assembled therein. As shown in FIG. 16A, the inner wall surface of the first accommodating groove 621 is provided for the corresponding roller group 63 to roll in contact with the surface thereof. As shown in FIG. 15A, the second receiving groove 622 of the shaft sleeve 62 further includes a plurality of limiting ball slots 623, and the inner driving sleeve 61 defines a receiving groove 615 corresponding to the limiting ball groove 623. The ball 624 and the second elastic member 625 have one end of the second elastic member 625 abutting against the inner wall surface of the receiving groove 615 and the other end abutting against the ball 624. The normal elastic pushing of the second elastic member 625 against the ball 624 is retained in the corresponding limiting ball groove 623.

In addition, the other end of the shaft sleeve 62 has at least one insert 626 formed on the outer side wall surface of the shaft sleeve 62. When the shaft assembly 62 is assembled to the assembly groove 12 of the handle 10, the insert is passed through the shaft sleeve 62. The block 626 forms a tight fit with the inner side wall surface of the assembly slot 12 such that the shaft sleeve 62 can be securely mounted within the assembly slot 12 of the handle 10. The inside of the shaft sleeve 62 has a through hole 627, and the through hole 627 communicates with the first receiving groove 621, and the through hole 627 is used for the spindle 11 to pass therethrough.

The roller set 63 includes a first roller 631, a second roller 632, and a first elastic member 633. In the present embodiment, the three roller sets 63 are exemplified and are not intended to limit the claims of the present invention. Specifically, the roller set 63 is assembled in the corresponding rolling groove 614, and the first roller 631 and the second roller 632 are respectively located at opposite ends of the rolling groove 614, and one end of the first elastic member 633 is abutted on the first roller. On the 631, the other end is abutted on the second roller 632.

As shown in FIG. 14A, the control assembly includes an end kit 71 and a dial 72. Among them, the end kit 71 and the inner transmission kit 61 are combined with each other. Specifically, the end kit 71 has at least one plug portion 711, and the shape and number of the plug portion 711 are matched to the shape and number of the slots 613, so that the plug portion 711 of the end sleeve 71 can be stably assembled into the inner drive kit. 61 of the slots 613. In addition, the end sleeve 71 has a second perforation 712 for the spindle 11 is worn in it.

The dial 72 has a rod member 721 which is passed through the sliding groove 14 of the grip 10 and is connected to the end sleeve 71 to be rotationally displaced by the push button 72 and the rod member 721.

As shown in FIG. 12, when the clutch assembly is assembled to the handle 10, it can be seen that the spindle 11 penetrates the through hole 131 of the end cover 13, the second through hole 712 of the end sleeve 71, the first through hole 611 of the inner transmission kit 61, and the shaft. The through hole 627 of the sleeve 62 is such that the clutch assembly is mounted in the assembly groove 12 of the handle 10. As shown in Fig. 14A, the dial 72 of the control unit is located on the surface of the handle 10, and the rod member 721 of the dial 72 passes through the slide groove 14 and is then connected to the end sleeve 71 and assembled by the end kit 71. The inner drive assembly 61 is such that the control assembly is coupled to the inner drive assembly 61. As shown in FIG. 15A, the insertion portion 711 of the end sleeve 71 is held in the slot 613 of the inner transmission kit 61, and is pushed by the elasticity of the second elastic member 625 against the ball 624 in the normal position of the corresponding limit ball slot. 623. As shown in FIG. 16A, the three roller groups 63 are respectively located in the corresponding rolling grooves 614. The two ends of the first elastic members 633 of each roller group 63 respectively abut the first roller 631 and the second roller 632, respectively. The first roller 631 and each of the second rollers 632 are respectively held on opposite sides of the rolling groove 614. Specifically, each of the first roller and each of the second rollers respectively contact the inner wall surface and the main shaft of the first accommodating groove in the corresponding rolling grooves, so that a rolling space is formed between the inner wall surface of the first accommodating groove and the main shaft, respectively. The corresponding first roller and the second roller are reciprocally rolling and displaced in the corresponding rolling space.

The user can toggle the dial 72 of the control assembly such that the dial 72 is displaceable relative to the surface of the handle 10 to the first position, the second position, and the third position. As shown in Figures 14A, 15A and 16A, when the dial 72 of the control assembly is in the first position, the end kit 71 of the control assembly can drive the clutch assembly to position the spindle 11 in the first gear position. In detail, in the case where the dial 72 is not operated, the end sleeve 71 of the control assembly does not drive the inner transmission kit 61 to rotate axially, so that the first elastic member 633 of each roller group 63 is elastically urged against the first roller 631. The second roller 632 is normally held on opposite sides of the rolling groove 614. In this way, the clutch assembly is held in the locked state and the spindle 11 cannot be rotated, so that the spindle 11 is maintained in the first gear position. In addition, the ball 624 is normally held in the limit ball groove 623 of the first gear position by the elasticity of the second elastic member 625.

As shown in FIGS. 14B, 15B and 16B, when the user pushes the dial 72 to move to the second position, the lever 721 of the dial 72 drives the end sleeve 72 to be rotationally displaced and the insertion portion of the end sleeve 72. 711 pushes the curved wall 612 in the same direction within the slot 613 such that the inner drive assembly 61 is driven by the end sleeve 72 to synchronize rotational displacement. Since the curved wall 612 is pushed by the insertion portion 711, the curved walls 612 push the corresponding first roller 631 to roll displacement, so that the respective first rollers 631 move toward the second roller 632 and press the first elastic member 633. The first roller 631 of each roller set 63 actively engages the main shaft 11 with the second roller 632. Thus, when the handle 10 is rotated in the first rotational direction, the main shaft assembly 11 can be used to drive the main shaft 11 to rotate in the first rotational direction to form the second gear position.

At the same time, due to the axial rotation of the inner transmission kit 61, the inner wall surface of the inner transmission kit 61 is pushed against the ball 624 to be disengaged from the corresponding limit ball slot 623, so that the ball 624 is released from the limit state and enters the receiving groove 615. And pressing the second elastic member 625. As shown in FIG. 15B, when the inner transmission kit 61 is driven by the control unit 30, along the first When the rotation direction is rotated, the ball 624 is elastically pushed by the second elastic member 625 to enter the limit ball groove 623 of the second gear position.

As shown in FIGS. 14C, 15C and 16C, when the user pushes the dial 72 to move to the third position, the lever 721 of the dial 72 drives the end sleeve 72 to rotate and the insertion portion of the end sleeve 72. 711 pushes the curved wall 612 in the same direction within the slot 613 such that the inner drive assembly 61 is driven by the end sleeve 72 to synchronize rotational displacement. Since the curved wall 612 is pushed by the insertion portion 711, the curved walls 612 push the corresponding second roller 632 to roll displacement, so that the second rollers 632 move toward the first roller 631 and press the first elastic member. 633, the second roller 632 of each roller set 63 actively engages the main shaft 11 with the first roller 631. Thus, when the handle 10 is rotated in the second rotational direction, the main shaft assembly 61 can be used to drive the main shaft 11 to rotate in the second rotational direction to form a third gear position.

At the same time, due to the axial rotation of the inner transmission kit 61, the inner wall surface of the inner transmission kit 61 is pushed against the ball 624 to be disengaged from the corresponding limit ball slot 623, so that the ball 624 is released from the limit state and enters the receiving groove 615. And pressing the second elastic member 625. As shown in FIG. 15C, when the inner transmission kit 61 is driven by the control unit 30 to rotate in the second rotation direction, the ball 624 is elastically pushed by the second elastic member 625 to enter the third-position limit ball slot. Within 623.

The above has described in detail the preferred embodiments of the invention. It will be appreciated that many modifications and variations can be made in the present invention without departing from the scope of the invention. Therefore, any technical solution that can be obtained by a person skilled in the art based on the prior art based on the prior art by logic analysis, reasoning or limited experimentation should be within the scope of protection determined by the claims.

Claims

A ratchet screwdriver, characterized in that it comprises:

a handle, the handle is provided with a main shaft;

a clutch assembly disposed inside the handle and sleeved on the spindle;

a control assembly, the control assembly is disposed in the movable relationship in the handle, and the control assembly and the clutch assembly are coupled to each other;

The control assembly is displaceable relative to the handle to a first position, a second position, or a third position; the control assembly is capable of controlling the clutch assembly when the control assembly is in the first position The spindle is located in the first gear position; when the control component is in the second position, the control component is capable of controlling the clutch component to rotate the spindle in a first rotational direction to form a second gear position; The control assembly is configured to control the clutch assembly such that the spindle rotates in the second rotational direction to form a third gear position when the control assembly is in the third position.
The ratchet screwdriver of claim 1 wherein said clutch assembly comprises:

First ratchet member;

Second ratchet member;

a shaft kit for assembly inside the handle;

The inner ratchet kit is configured to be connected to the control component, and the inner ratchet kit has a first accommodating groove, a second accommodating groove and a third accommodating groove, and the first accommodating groove is formed in the One side of the inner ratchet kit, the first accommodating groove is configured to be assembled in the first ratchet member, and the second accommodating groove and the third accommodating groove are formed in the The other side of the inner ratchet kit, the second receiving groove is for the second ratchet member to be assembled therein, and the third receiving groove is for one end of the shaft sleeve to be assembled therein.
The ratchet screwdriver according to claim 2, wherein the inner wall surface of the first receiving groove is formed with a first ratchet end face, and the number and direction of the first ratchet end face are matched with the first The ratchet member has an inner wall surface of the second receiving groove forming a second ratchet end surface, and the number and direction of the second ratchet end surface are matched to the second ratchet member.
The ratchet screwdriver according to claim 3, wherein the clutch assembly further comprises a first elastic member for elastically resisting the end cap and the first ratchet member Between the first ratchet member and the first ratchet end face normally maintained in an engaged state.
The ratchet screwdriver of claim 3, wherein the clutch assembly further comprises a second resilient member for resiliently resisting between the second ratchet member and the shaft sleeve The second ratchet member and the second ratchet end face are normally maintained in an engaged state.
A ratchet screwdriver according to claim 3, wherein the ratchet direction of the first ratchet member is opposite to the ratchet direction of the second ratchet member.
A ratchet screwdriver according to claim 2, wherein said shaft kit has a head at one end thereof. For assembling in the third accommodating groove, the other end of the shaft sleeve has at least one hook portion formed on an outer wall surface of the shaft sleeve, through the hook portion and the hook portion The inner side wall surface inside the grip forms a state of tight fit.
A ratchet screwdriver according to claim 2, wherein the inside of the shaft set has a through hole for the main shaft to be inserted therein.
A ratchet screwdriver according to claim 2, wherein said first ratchet member has a first perforation, said first perforation being open at a central position of said first ratchet member for said spindle Throughout it.
A ratchet screwdriver according to claim 2, wherein said second ratchet member has a second through hole, said second through hole being opened at a central position of said second ratchet member for said spindle Throughout it.
The ratchet screwdriver of claim 3 wherein said control assembly comprises:

a dial, disposed on the surface of the handle and displaced relative to the handle to the first position, the second position or the third position, the dial having a first locking hole;

a locking member for passing through the first locking hole and interlocking with a second locking hole of the inner ratchet kit, the button driving the inner ratchet kit to synchronize by the locking device Moving the first position, the second position, or the third position.
The ratchet screwdriver according to claim 11, wherein when the dial is in the first position, the first ratchet member and the first ratchet end face are normally in mesh with each other. The second ratchet member and the second ratchet end face are normally in meshing state, such that the clutch assembly maintains the locked state and cannot rotate the spindle, so that the spindle remains in the first gear position. .
The ratchet screwdriver according to claim 11, wherein when the dial is in the second position, the dial drives the inner ratchet kit to be displaced toward the first ratchet member. The first ratchet member is in close mesh with the first ratchet end face, and the second ratchet end face is disengaged from the second ratchet member, and the first ratchet member and the inner ratchet kit are driven The spindle is held in the second gear position.
The ratchet screwdriver according to claim 11, wherein when the dial is in the third position, the dial drives the inner ratchet kit to be displaced toward the second ratchet member. The second ratchet member is in close meshing engagement with the second ratchet end face, the first ratchet end face is disengaged from the first ratchet member, and the second ratchet member and the inner ratchet kit are driven The spindle is held in the third gear position.
The ratchet screwdriver of claim 1 wherein said clutch assembly comprises:

The inner ratchet kit has a receiving groove, and the inner wall surface of the receiving groove is surrounded by a plurality of ratchet teeth;

a shaft assembly for assembling inside the handle, the shaft set has a head, the head is assembled in the accommodating groove, and the head has a first slot and a second slot The positions of the first slot and the second slot respectively correspond to the plurality of ratchets of the receiving slot;

a first ratchet member pivotally connected to the first slot;

a second ratchet member pivotally connected to the second slot, wherein the first ratchet member and the second ratchet member are respectively rotatably displaced to an engaged position with the plurality of ratchet teeth And a release position away from the plurality of ratchets.
A ratchet screwdriver according to claim 15, wherein said inner ratchet kit has a first perforation, said first perforation being open at a central position of said inner ratchet kit for said main shaft to pass through among them.
A ratchet screwdriver according to claim 15, wherein the other end of the shaft set has at least one hook portion formed on an outer side wall surface of the shaft sleeve through the hook portion The inner wall surface of the inside of the grip forms a state of tight fitting.
A ratchet screwdriver according to claim 15, wherein the inside of the shaft set has a through hole for the main shaft to be inserted therein.
The ratchet screwdriver according to claim 15, wherein the clutch assembly further has a first elastic member, one end of the first elastic member abuts against the first ratchet member, and the other end abuts On the second ratchet member, the first ratchet member and the second ratchet member are normally maintained in the engaged position by the elastic force of the first elastic member.
The ratchet screwdriver of claim 15 wherein said control assembly comprises:

a buckle is disposed in the buckle groove of the head, and a pushing portion is respectively extended at two ends of the buckle, and the pushing portions of the two ends of the buckle respectively correspond to the first Slotting and the second slotting;

a collar sleeved on the head and assembled with the buckle, the collar having a through hole;

a dial having a rod member, the rod member being connected to the buckle through the through hole, and driving the buckle and the rod member to drive the buckle to be fan-shaped in the buckle groove The pushing portions of the two ends of the buckle respectively drive the first ratchet member and the second ratchet member to rotate and displace.
The ratchet screwdriver of claim 20, wherein the buckle surface has a plurality of first latches, the collar has a plurality of second latches, and the plurality of second latches The plurality of first latching teeth are engaged with each other.
The ratchet screwdriver according to claim 20, wherein the buckle groove has a flange therein, and the flange is pushed by the pushing portion of the two ends of the buckle to drive the shaft assembly to synchronize The buckle is fan-shaped displacement.
The ratchet screwdriver according to claim 20, wherein the collar has a plurality of limiting ball slots, and the head portion is provided with a receiving groove corresponding to the limiting ball slot, and the receiving groove is internally received a ball and a second elastic member, wherein one end of the second elastic member abuts against an inner wall surface of the receiving groove, and the other end abuts against the ball, and the second elastic member normally elastically pushes against the ball It is held in the corresponding limit ball slot.
A ratchet screwdriver according to claim 20, wherein said first ratchet member and said second ratchet member are respectively held in said engaged position when said dial is in said first position, The clutch assembly is held in a locked state to disable rotation of the spindle such that the spindle remains in the first gear position.
The ratchet screwdriver according to claim 20, wherein when the dial is in the second position, the lever of the dial drives the buckle to be fan-shaped in the buckle groove, The pushing of one end of the buckle pushes the first ratchet member to be rotationally displaced from the engaged position to the release position such that the first ratchet member is active and the second ratchet member The piece holds the spindle and remains in the second gear position.
The ratchet screwdriver according to claim 20, wherein when the dial is in the third position, the lever of the dial drives the buckle to be fan-shaped in the buckle groove, The pushing of one end of the buckle pushes the second ratchet member to be rotationally displaced from the engaged position to the release position such that the second ratchet member is active with the first ratchet The piece holds the spindle and remains in the third gear position.
The ratchet screwdriver of claim 1 wherein said clutch assembly comprises:

An inner drive kit having a first perforation and a plurality of curved walls, the first perforation being open at a central position of the inner drive set for the main shaft to penetrate therethrough, the plurality of curved walls from One side of the inner transmission kit extends out and surrounds the first perforation, and each of the plurality of curved walls has a rolling groove;

The at least one roller set includes a first roller, a second roller and a first elastic member, wherein the first roller and the second roller are respectively located at opposite ends of the rolling groove, and one end of the first elastic member abuts Holding on the first roller, the other end abutting on the second roller;

a shaft assembly internally forming a first receiving groove and a second receiving groove, wherein the plurality of curved walls and the at least one roller set of the inner transmission kit are assembled in the first receiving groove The body of the inner drive kit is assembled in the second receiving groove.
The ratchet screwdriver according to claim 27, wherein the inner wall surface of the second receiving groove has a plurality of limiting ball slots, and the inner transmission sleeve is provided with a receiving groove, and the receiving groove is internally received a ball and a second elastic member, wherein one end of the second elastic member abuts against an inner wall surface of the receiving groove, and the other end abuts against the ball, so that the second elastic member elastically pushes against the ball to maintain the normal state In the corresponding limit ball slot.
A ratchet screwdriver according to claim 27, wherein one end of the shaft set has at least a block formed on an outer side wall surface of the shaft set, through the insert and the handle The inner inner wall surface forms a state of tight fit.
The ratchet screwdriver according to claim 27, wherein the inside of the shaft sleeve has a through hole, the through hole communicates with the first receiving groove, and the through hole is used for the spindle to be pierced In it.
The ratchet screwdriver of claim 27 wherein said control assembly comprises:

An end kit having at least one plug, the inner drive kit having at least one slot, the plug portion being disposed within the corresponding slot;

a dial having a rod member that is coupled to the end kit after passing through the grip, and the end sleeve is rotationally displaced by pushing the dial and the rod, the end kit The plug portion pushes the plurality of arcuate walls in the same direction in the slot such that the inner drive kit is driven by the end kit to synchronize rotational displacement.
A ratchet screwdriver according to claim 31, wherein said end sleeve has a second perforation for the spindle to be threaded therein.
The ratchet screwdriver according to claim 31, wherein when the dial is in the first position, the first roller and the second roller are normally held in the opposite direction of the rolling slot. The side edges enable the clutch assembly to remain locked and unable to rotate the spindle such that the spindle remains in the first gear position.
A ratchet screwdriver according to claim 31, wherein said lever member of said dial drives said end sleeve to be rotationally displaced when said dial is in said second position, such that said inner drive kit The plurality of curved walls respectively push the corresponding first roller to roll and displace in a direction toward the second roller, so that the first roller actively holds the spindle and the second roller to hold the spindle Said the second gear.
A ratchet screwdriver according to claim 31, wherein said lever member of said dial drives said end sleeve to be rotationally displaced when said dial is in said third position, such that said inner drive kit The plurality of arcuate walls respectively push the corresponding second roller to roll and displace in a direction toward the first roller, such that the second roller actively holds the spindle with the first roller. Said the third gear.