TWI527668B - Universal joint with external disengagement device - Google Patents

Description

Universal joint with external positioning device

The invention relates to the technical field of a universal joint for connecting a tool head or a locking element, in particular to a universal joint having an outer disengaging device and capable of changing the angle of use.

Generally, a socket wrench or a screwdriver head tool can apply a torsion force to the locking member to achieve a tightening or relaxing operation effect. If the space where the locking component is located is wide, the above tool can be rotated conveniently and smoothly; however, if the locking component is located in a narrow space, or the locking component is located in the inclined hole, the socket wrench or the screwdriver tool A universal joint with a bendable angle is required.

The main structure of the known universal joint includes a sleeve having a ball socket and a post (drive rod) having a ball head, the ball head being mounted in the socket, so that the sleeve and the post can be Bending to form different angles. For example, Taiwan Patent Publication No. 549391, No. M369830, and No. I365799 both disclose the above-described universal joint structure.

Secondly, the patent of Taiwan Patent No. I397456 discloses a combination of a female seat (sleeve), a tool assembly (drive rod) and a sliding sleeve, wherein the tool assembly has a convex block, and the ball socket wall surface of the female seat has a card slot to engage the convex portion; Thus, the rotation of the tool assembly can interlock the female seat, and the movement of the sliding sleeve can separate the female seat from the tool assembly.

The universal joint structure disclosed in the above patents can achieve the effect of bending the drive rod relative to the sleeve. However, in the configuration disclosed in the above patents, the drive rod is bent. After the failure to reach the positioning state, the operator needs to pay extra attention to the angle between the drive rod and the sleeve. If the angle between the drive rod and the sleeve is always changed, it will undoubtedly cause inconvenience in operation.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a universal joint having an outer positioning device having an angular relationship capable of forming a positioning shape between a driving sleeve and a driving member, thereby achieving a more convenient use effect.

In order to achieve the above object, the present invention discloses a universal joint having an outer disengaging device, which comprises an outer ring having an axially uniform perforation; a through hole inserted into the outer ring; and a driving sleeve The positioning tube is sleeved on the periphery of the driving sleeve, and one end thereof is formed as an arc-shaped head having a positioning structure; a positioning ring is sleeved on the positioning tube The outer periphery of the curved head, and the positioning ring is connected to the outer ring; a positioning steel ball is movably mounted on the positioning ring, and positioning the steel ball corresponds to the positioning structure of the curved head surface of the positioning tube; an outer ring sleeve Wrapped around the outer ring, the positioning ring and the combination of the curved heads of the positioning tube, and the inner wall of the outer ring sleeve has an abutting portion corresponding to the steel ball; and a spring is mounted on the outer ring The sleeve is between the end of the positioning ring.

The outer ring sleeve is pushed to release the pressing force of the abutting portion on the positioning steel ball, and the positioning steel ball moves to release the locking state of the positioning structure, and the combination of the positioning tube and the driving sleeve can be bent. After the angle is released, the outer ring sleeve is released, and the abutting portion can urge the positioning steel ball to form the positioning steel ball and the positioning structure to form a click.

In the following, the objects and effects of the present invention will be described in detail with reference to the accompanying drawings.

10‧‧‧ universal joint

12‧‧‧Outer Ring

14‧‧‧through holes

16‧‧‧ curved wall

18‧‧‧The outer edge

20‧‧‧ Drives

22‧‧‧ head

24‧‧‧Pole section

26‧‧‧ drive sleeve

28‧‧‧ ball nest

30‧‧‧ sockets

32‧‧‧ Positioning tube

34‧‧‧ accommodating space

36‧‧‧Arc head

38‧‧‧ Positioning structure

40‧‧‧s

42‧‧‧ positioning ring

44‧‧‧C-ring

46‧‧‧Beacon

48‧‧‧ Positioning steel balls

50‧‧‧ outer ring cover

52‧‧‧Card Department

54‧‧‧ Spring

56‧‧ ‧ retaining ring

Figure 1 is an exploded view of the present invention.

Figure 2 is a schematic view of the combined structure of the present invention.

Fig. 3 is a schematic view showing the operation of adjusting the bending angle of the present invention.

Figure 4 is a schematic view 2 of the action of adjusting the bending angle of the present invention.

Fig. 5 is a schematic view 3 of the action of adjusting the bending angle of the present invention.

Referring to FIGS. 1 and 2, the universal joint 10 disclosed in the present invention includes an outer ring 12 having an axially inner portion having a continuous through hole 14 and an end wall surface of the through hole 14 forming an arcuate wall surface 16 . . Further, the outer surface of the outer ring 12 has an outer edge portion 18 at its periphery.

The universal joint 10 also includes a drive member 20. The driving member 20 is a rod-shaped member and is inserted into the through hole 14 of the outer ring 12. Further, one end of the driving member 20 forms a head portion 22, and the other end is a post portion 24, the head portion 22 has a multi-faceted configuration, and the post portion 24 is located outside the outer ring 12. The post portion 24 can be used in conjunction with a suitable wrench or tool.

A drive sleeve 26 has a ball socket 28 axially at one end and a set of contact holes 30 at the other end. The ball socket 28 is of a polygonal hole configuration (see Fig. 2), and the head 22 of the drive member 20 is coupled to the ball socket 28. The socket 30 is used to join a suitable tool head or directly engage the locking element.

A positioning tube 32 is axially formed with a through accommodating space 34, and one end of the positioning tube 32 forms a bulging curved head portion 36. The internal space in which the accommodation space 34 includes the curved head portion 36 is included. Furthermore, a positioning formation 38 is provided on the outer surface of the curved head 36. The positioning formation 38 can be a plurality of recessed holes (as shown) or annular grooves. The positioning tube 32 is for being sleeved on the periphery of the driving sleeve 26.

It should be noted that one end of the driving sleeve 26 can form a protruding seat 40, the ball socket 28 is located inside the seat 40, and the driving sleeve 26 is placed in the positioning tube 32. Within the space 34, the seat 40 abuts against the inner face of the curved head 36.

A positioning ring 42 is sleeved around the curved head portion 36 of the positioning tube 32, and the positioning ring 42 can be coupled to the outer ring 12 by a C-shaped ring 44. Further, a peripheral bead hole 46 is defined in the periphery of the positioning ring 42 in a radial direction, and a positioning steel ball 48 is movably mounted in the bead hole 46, so that the positioning steel ball 48 can correspond to the curved head of the positioning pipe 32. 36 is positioned on the surface 38 and the positioning bead 48 can be snapped onto the positioning formation 38.

An outer collar 50 is movably sleeved over the periphery of the combination of the outer ring 12, the retaining ring 42 and the curved head 36 of the positioning tube 32. Further, the inner wall of the outer ring cover 50 has a convex portion 52 (see Fig. 2). The abutting portion 52 can correspondingly and press against the positioning steel ball 48, and the end portion of the outer ring sleeve 50 corresponds to and contacts the outer edge portion 18 of the outer ring 12.

A spring 54 is mounted between the outer collar 50 and the end of the retaining ring 42. Further, a retaining ring 56 is coupled to the outer collar 50, and the spring 54 is positioned between the retaining ring 56 and the end of the positioning tube 32.

Referring to FIG. 3, the operator needs to adjust the angle between the driving sleeve 26 and the driving member 20, and the outer ring sleeve 50 can be pushed to prevent the abutting portion 52 from contacting the positioning steel ball 48, thereby releasing the offset. The dam portion 52 compresses the positioning ball 48, thereby allowing the positioning ball 48 to move. Movement of the positioning ball 48 does not form a click with the positioning structure 38. In other words, by pushing the outer ring sleeve 50, the positioning state of the positioning steel ball 48 to the positioning structure 38 can be released, and the outer stripping effect can be achieved. Further in the above configuration, the positioning tube 32 and the drive sleeve 26 form a combination that can be rotated by the head 22 of the drive member 20 as a fulcrum.

Referring to FIG. 4, in a state where the positioning ball 48 and the positioning structure 38 are free from jamming, the operator can bend the driving member 20 according to the actual use requirement, or the positioning tube 32 and the driving sleeve 26. Combine to achieve the effect of adjusting the bending angle.

Referring to FIG. 5, after the operator completes the adjustment of the angle, the outer ring sleeve 50 can be released, and under the restoring force of the spring 54, the outer ring sleeve 50 can move against the outer ring 12, so that the The abutment portion 52 can be in contact with the positioning bead 48. Further, the abutting portion 52 urges the positioning steel ball 48 to abut against the positioning structure 38, so that the positioning steel ball 48 and the positioning structure 38 are in a locked state, so that the adjusted angle of the driving member 20 and the driving sleeve 26 can be obtained. Positioning effect.

The driving member 20 and the driving sleeve 26 disclosed in the present invention can adjust the angle between the two by the external disengagement mode, and the driving member 20 and the driving sleeve 26 can be positioned to be positioned after the angle is adjusted. In actual use, the driving member 20 and the driving sleeve 26 can be freely changed in angle to achieve convenient operation.

The above is a preferred embodiment and the design of the present invention. The preferred embodiments and the drawings are merely illustrative and not intended to limit the scope of the invention. The scope of the rights covered by the content of the "Scope of Patent Application" is not within the scope of the invention and is the scope of the applicant's rights.

10‧‧‧ universal joint

12‧‧‧Outer Ring

14‧‧‧through holes

16‧‧‧ curved wall

18‧‧‧The outer edge

20‧‧‧ Drives

22‧‧‧ head

24‧‧‧Pole section

26‧‧‧ drive sleeve

28‧‧‧ ball nest

30‧‧‧ sockets

32‧‧‧ Positioning tube

34‧‧‧ accommodating space

36‧‧‧Arc head

38‧‧‧ Positioning structure

40‧‧‧s

42‧‧‧ positioning ring

44‧‧‧C-ring

46‧‧‧Beacon

48‧‧‧ Positioning steel balls

50‧‧‧ outer ring cover

54‧‧‧ Spring

56‧‧ ‧ retaining ring

Claims (6)

A universal joint with an outer disengaging device, which is connected with a tool head or a workpiece and cooperates with a driving torque to perform a tightening or loosening operation, comprising: an outer ring having a continuous perforation in the axial direction; a driving sleeve is inserted into the through hole of the outer ring; a driving sleeve is used for coupling one end of the driving member; a positioning tube is sleeved on the outer periphery of the driving sleeve, and one end thereof is formed into an arc shape a head portion, and the curved head surface has a positioning structure; a positioning ring is sleeved around the curved head of the positioning tube, and the positioning ring is connected to the outer ring; a positioning steel ball is movably mounted on the a positioning structure on the positioning ring and corresponding to the curved head surface of the positioning tube; an outer ring sleeve is sleeved around the outer ring, the positioning ring and the combination of the curved heads of the positioning tube, and the outer ring The inner wall cover of the outer ring sleeve has an abutting portion corresponding to the steel ball; and a spring is installed between the outer ring sleeve and the end of the positioning ring; thereby, the outer ring sleeve is pushed to release the abutment The crushing action of the positioning steel ball, and the positioning steel ball shift In order to release the jam state of the positioning structure, the combination of the positioning tube and the driving sleeve can be bent at an angle, and then the outer ring sleeve is released, the abutting portion can push the positioning steel ball to make the positioning steel ball A click is formed with the positioning structure. The universal joint with the outer positioning device according to the first aspect of the invention, wherein the positioning ring has a through hole, the positioning steel ball is installed in the bead hole, and the positioning structure of the curved head surface It is a recessed hole and the steel ball should be positioned. A universal joint having an outer positioning device according to claim 1, wherein the driving member One end of the drive sleeve has a multi-faceted head, and one end of the drive sleeve has a ball socket which is a polygonal hole, and the head of the driving member is coupled to the ball socket. The universal joint with the outer positioning device according to the first aspect of the invention, wherein the inner wall surface of one end of the through hole of the outer ring forms an arc-shaped wall surface, and the curved head of the positioning tube corresponds to Curved wall. The universal joint with the outer positioning device according to claim 1, wherein the outer ring has an outer edge portion for correspondingly contacting and contacting the end of the outer ring sleeve. The universal joint with the outer positioning device according to claim 1 further includes a retaining ring, the retaining ring is combined with the outer ring sleeve, and the spring is located at the end of the retaining ring and the positioning ring. between.