CN86207247U

CN86207247U - Multi-functional sliding adjustable pipe wrench

Info

Publication number: CN86207247U
Application number: CN 86207247
Authority: CN
Inventors: 翟北春
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-09-23
Filing date: 1986-09-23
Publication date: 1988-02-10

Abstract

The utility model provides a multifunctional pipe wrench which is easy in use and has a big clamping force to pipe fittings and can be screwed both in the forward direction and in the reversed direction. The utility model uses a sliding mode to adjust the size of a jaw, and uses a toothed rack and a gear with few teeth to clamp the pipe fitting. Thus the pipe fittings to be disassembled and assembled can be clamped quickly and firmly. If the multifunctional sliding adjustable pipe wrench is used with other accessories cooperatively, which can be used as clamping devices, many tools can be replaced such as, pipe cutters, pipe die heads, table vices (or pipe vices), work benches, etc.

Description

Multi-functional sliding adjustable pipe wrench

The utility model belongs to a kind of power tool, particularly belongs to a kind of instrument that can screw pipe fitting.

Usually in various pipeline disassemble and assemble works (installing or maintenance) as water supply pipe, need to use pipe wrench, clamp-on pipe vise, pipe hinge plate, hacksaw or instruments such as pipe cutter, workbench, it is inconvenient using many and heavy like this instrument to carry, especially when pipeline was carried out simplified overhauling, it was very inconvenient to carry these instruments.In addition, existing pipe wrench, its jaw be adjusted to the rotation threaded adjusting, makes and regulate with this pipe wrench dismounting pipe fitting (the especially pipe fitting of different-diameter) that jaw was both dumb, governing speed is also slow, and the size of jaw also is difficult for adjustment.And after clamping pipe fitting with this pipe wrench, can only screw to a direction.Therefore, instruments such as existing pipe wrench are not ideal tools, need these instruments are improved.

The utility model provides a kind of multi-functional pipe wrench easy to use, it can will treat the rapid firm grip of dismounting pipe fitting, clamped pipe fitting can be screwed to positive and negative both direction simultaneously, and it can cooperate with some annex, replace instruments such as pipe hinge plate, pipe cutter, also it can be fixed on the various solid object, replace bench vice or clamp-on pipe vise etc.

The utility model is achieved in that (referring to Fig. 1) has a fixed nip (2) at an end of guide rail (1), and fixed nip and guide rail (1) are same one, are shaped on dovetail groove in the guide rail.There is a tooth bar (3) in the dovetail groove of guide rail, to be free to slide.End at tooth bar has a movable clamp port (4), and movable clamp port (4) is same one with tooth bar.Sliding rack (3) can be regulated distance between movable clamp port and the fixed nip, and tooth bar can be extracted out from dovetail groove.At the other end of guide rail, by bearing pin (5) connection a hypodontia wheel (6) is housed, be connected to a handle (7) on the hypodontia wheel (6), handle (7) can be same one with hypodontia wheel (6), also can be two parts that can separate.Hypodontia wheel (6) can be done the round rotation of certain angle along with the reciprocating swing of handle, on the outer garden of hypodontia wheel, is shaped on one or more gear teeth, and its modulus is identical with the tooth module of tooth bar (3).Can be shaped on protruding tooth or configuration and be shaped on the clamping plate of protruding tooth on the movable clamp port face relative with fixed nip, the shape that is shaped on the face of protruding tooth can be a planar shaped, also can be concave shape.In use, will lift on the handle (7), tooth and the tooth on the tooth bar on the hypodontia wheel are broken away from, tooth bar is slided in the dovetail groove of guide rail and movable clamp port is moved rapidly, clamp and treat the dismounting pipe fitting, again handle is pressed down, make the tooth and the engagement of the tooth on the tooth bar of hypodontia wheel.Rotation along with the hypodontia wheel, make movable clamp port and fixed nip that pipe fitting is tightly clamped, when handle presses down when contacting with the other end of tooth bar, jaw reaches maximum to the clamping force of pipe, for when working, keeping this clamped condition, locking device can be installed, but the distance between its regular jaw, and its locking device structure can be that energy connecting rod connected to one another is installed between handle and tooth bar; Also can between hypodontia wheel and guide rail, ratchet and pawl arrangement be installed, make the revolution of hypodontia wheel and rack engagement back restriction hypodontia wheel, locking device also can be form as shown in Figure 1, promptly on guide rail, connect a lock depression bar (8) by connecting axle (16), the other end of lock depression bar (8) connects a release handle (9), also connects a connecting rod (10) on the lock depression bar (8).The other end of connecting rod is connected with handle, this locking device also can be between guide rail and lock depression bar (8) be connected with locking spring (11), the position of the connecting axle (16) between lock depression bar (8) and the guide rail can be regulated, and the adjusting of its position is finished by bolt (12).After handle is depressed.α angle (referring to shown in Figure 1) less than but near 180 the degree, at this moment pressing down locking bar (8) will make the α angle greater than 180 ℃, clamped condition just is lockable like this, adjust as the position that will lock the tie point between depression bar and the guide rail, refill locking spring (10), then when handle presses down, but locking device auto lock, if want handle is lifted, only need and will lift on the release handle (9), make the α angle by greater than 180 degree angular convolutions to spending the horn shape attitudes less than 180, just removed self-locking, at this moment can easily handle be lifted, make jaw become relaxation state at once the clamped condition of pipe fitting.On movable clamp port and fixed nip, all be shaped on two open-works (13) respectively, its effect is annexes such as pipe cutter annex (this annex is to be made of a cutting blade (14) and two guide wheels (18)) or pipe hinge wrench can be contained on the jaw, just can be used as the instrument (referring to Fig. 3) of cutting pipes, articulation pipe fitting screw thread.

The utility model has following advantage and good effect:

(1), can adjust the size of jaw rapidly, easy to use;

(2), big to the clamping force of pipe fitting, after the clamping, be difficult for skidding;

(3), with after the locking device locking, can keep maximum clamping force, and its pipe fitting can be screwed to positive and negative both direction.

(4) jaw is loaded onto the pipe cutter annex, can replace the pipe cutter (see figure 3).Load onto pipe hinge wrench on the jaw, can replace pipe hinge plate.Can replace bench vice or clamp-on pipe vise, workbench etc. to this pipe wrench with many.

(5), can make anchor clamps and use, this pipe wrench be except that pressing from both sides the small workpiece, tooth bar can be extracted out, with tooth bar in addition end insert dovetail groove (referring to Fig. 4) earlier, just can press from both sides bigger workpiece.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A-A profile of the utility model structure.

Fig. 3 is the schematic diagram of the utility model as pipe cutter.

Fig. 4 is used for the schematic diagram of anchor clamps for the utility model.

The utility model is described in further detail below in conjunction with accompanying drawing: see Fig. 1 for details, by guide rail (1) with constitute one at the fixed nip (2) of guide rail one end, be shaped on dovetail groove in the guide rail.Tooth bar (3) with constitute one at the movable clamp port (4) of tooth bar one end, the tooth bar dovetail groove of can packing into, and can in dovetail groove, sliding.Opposite face between fixed nip and movable clamp port is to be shaped on protruding tooth on concave surface, the concave surface.All be shaped on two through holes (13) on fixed nip and the movable clamp port respectively.Tooth bar can slide in dovetail groove to regulate the distance between movable clamp port and the fixed nip.Two ends at the face that is shaped on tooth of tooth bar, the height that is shaped on a platform (15), platform respectively is a little more than tooth depth, do not damage rack tooth to guarantee handle (7) only to contact when pressing down with platform (15), the other end at guide rail, by bearing pin (5) connection a hypodontia wheel (6) is housed, is connected to handle (7) on the hypodontia wheel, handle and hypodontia wheel constitute one, swing handle can make the hypodontia wheel go up at bearing pin (5) and rotate.On the outer garden of hypodontia wheel three teeth are arranged, its modulus is identical with the rack tooth modulus.When handle presses down and tooth bar platform (15) when contacting, three teeth on the hypodontia wheel just in time with tooth bar on tooth mesh fully, on handle, lift certain angle, the tooth on the hypodontia wheel can break away from fully with the tooth on the tooth bar.Tooth bar can be free to slide in dovetail groove.Connect a lock depression bar (8) on guide rail, the other end of lock depression bar (8) connects a release handle (9), and lock depression bar and release handle can be two parts, also can be same one.Middle part about the lock depression bar connects a connecting rod (10).The other end of connecting rod is connected with handle (7), between guide rail and lock depression bar (8), adorn a locking spring (11) again, guide rail is connected in the chute (17) by connecting axle (16) with the lock depression bar, the position of its bearing pin (16) is regulated by bolt (12), if do not need locking (as at the normal mounting pipeline time), adjustable bolt (12) diminishes the α angle in when operation.When need were made anchor clamps, pipe cutter, pipe hinge plate or needed positive and negative both direction to screw pipe fitting with this pipe wrench, adjustable bolt (12) increased near 180 degree the α angle, at this moment can be by easy to operate manual locking or the auto lock dual mode of adopting arbitrarily.When this pipe wrench uses as setting tool, bolt (12) once can be harmonized, after use in, need not to regulate again.On guide rail (1), can also be carved with the footage number of measuring length in addition.

Claims

1, a kind of multi-functional pipe wrench, it is made up of guide rail [1], fixed nip [2], movable clamp port [4], handle [7], and wherein fixed nip is positioned at an end of guide rail, and guide rail and fixed nip are same one, it is characterized in that:

1) in guide rail, is shaped on dovetail groove;

2) tooth bar [3] and movable clamp port [4] being arranged is same one, and movable clamp port is positioned at an end of tooth bar;

3) tooth bar [3] can become in the dovetail groove to slide;

4) at the other end of guide rail, by bearing pin [5] connection a hypodontia wheel [6] is housed, is shaped on gear teeth on the outer garden of hypodontia wheel, the modulus of its tooth is identical with the modulus of tooth bar [3] tooth;

5) hypodontia wheel [6] is connected with handle [7], and the hypodontia wheel is done the round rotation of certain angle along with firmly the returning swing of handle;

6) on the pipe wrench locking device is housed.

2, multi-functional pipe wrench as claimed in claim 1, it is characterized in that said locking device is to connect a lock depression bar (8) on guide rail, the other end of lock depression bar connects a release handle (9), also connect a connecting rod (10) on the lock depression bar (8), the other end of connecting rod (10) is connected with handle (7).

3, multi-functional pipe wrench as claimed in claim 2 is characterized in that between lock depression bar (8) and guide rail (1) locking spring (11) being housed.

4, as claim 2 or 3 described multi-functional pipe wrench, it is characterized in that guide rail and lock are linked together by connecting axle (16) between the depression bar, and the position of connecting axle (16) can regulate, the adjusting of its position is finished by bolt (12).