CN102407504A - Detachable reciprocating spanner - Google Patents

Abstract

A detachable reciprocating wrench, including a handle and an annular ratchet, an annular rolling groove is arranged on the end face of the annular ratchet, and an arc-shaped T-shaped groove is arranged on the holding handle, which is embedded in the annular rolling groove and enables the annular ratchet to Relative rotation occurs, and a ratchet that matches the ring ratchet is connected to the handle, and a compression spring is provided between it and the handle, and a block is connected to the inner ring surface of the ring ratchet. The ring ratchet includes an upper The runner and the lower runner are provided with a connecting block and a connecting groove at one end respectively, which are connected by a threaded pin shaft to match each other. The other end of the upper runner is provided with a lock groove, and a back-stop protrusion is provided in it. The other end has a buckle matching the lock groove, including a wedge-shaped deadbolt and a deadbolt chamber. The wedge-shaped deadbolt is connected to the deadbolt chamber through a screw connected to the deadbolt chamber. The screw is covered with a compression spring in the deadbolt chamber Between the bottom and the wedge-shaped bolt, when the lock buckle is buckled into the lock groove, the wedge-shaped bolt protrudes from the bolt cavity under the action of the compression spring and conflicts with the back-stop protrusion, and the lock groove is provided with an unlocking hole.

Description

A detachable reciprocating wrench

technical field

The invention belongs to the technical field of assembly and disassembly equipment for screw fitting parts in engineering equipment. In particular, it relates to an auxiliary equipment device in which a hydraulic cylinder sealing cylinder sleeve and a hydraulic cylinder are screwed together.

Background technique

In many equipments in the field of engineering technology, there are many parts that are connected by threads, such as the connection between small screws and bolts and the threaded interface between the oil pipelines, the hydraulic cylinder of the excavator in construction machinery, the connection between the hydraulic cylinder and the piston rod The tightening and loosening of the sealed cylinder liner between the cylinders requires a lot of inconvenience, low efficiency and poor adaptability by using a general wrench. When performing tightening or loosening operations, due to the limitation of the working space, the wrench must be repeatedly disassembled and assembled, which is labor-intensive and time-consuming. Although some wrenches can realize reciprocating operation without disassembly, at present, this kind of wrench can only clamp structural parts of a size, and cannot adjust the range of its applicable size. In fact, when the length of the connecting part is very long, it is inconvenient, especially when the two ends of the part to be clamped are closed or when there is bending and variable size, this wrench will become invalid.

Contents of the invention

The invention provides an adjustable and separable reciprocating wrench which is beneficial to expand the scope of use and is convenient to use.

The present invention adopts following technical scheme:

A detachable reciprocating wrench, comprising: a handle, the wrench also includes an annular ratchet, an annular rolling groove is provided on the end face of the annular ratchet, an arc-shaped T-shaped groove is provided on the handle, and the arc-shaped The T-shaped groove is embedded in the annular rolling groove on the end face of the ring ratchet and enables the ring ratchet to rotate relatively in the arc-shaped T-shaped groove. On the holding handle, there is a pawl that matches the ring ratchet. A compression spring is provided, and a block is connected to the inner ring surface of the annular ratchet. The annular ratchet includes a lower runner and an upper runner, a connecting block is arranged at one end of the upper runner, and a There is a connection groove, the connection block is adapted to the connection groove and connected by a threaded pin shaft, a lock groove is provided at the other end of the upper runner, and a back-stop protrusion is arranged in the lock groove, and a back-stop protrusion is provided on the lower runner The other end is provided with a buckle matched with the lock groove, and the buckle includes a wedge-shaped deadbolt and a deadbolt chamber, and the wedge-shaped deadbolt is connected with the deadbolt chamber by a screw connected to the deadbolt chamber, and the bolt is sleeved on the bolt A compression spring is provided and the compression spring is located between the bottom of the lock tongue chamber and the wedge-shaped lock tongue. When the buckle is buckled into the lock groove, the wedge-shaped lock tongue protrudes from the lock tongue cavity under the action of the pressure spring and is in contact with the anti-retraction protrusion. Contradicting each other, an unlocking hole is provided on the lock slot.

Compared with prior art, the present invention has following advantage:

The invention realizes the reciprocating rotary motion of the device, avoids the repeated disassembly and clamping operation process, greatly improves the efficiency of the tightening and unscrewing operation of the screw fitting parts, and can better adapt to the operating environment with narrow space. Since the device is designed as a detachable structure, that is, the two semicircular runners can be opened and closed through the locking structure, which can realize the separation and closure of the two runners, and can be easily clamped on the The outer ring or the outer plane of the unscrewing part is easy to quickly assemble and disassemble, especially for closed structures and infinitely long structures, which solves the problem that ordinary wrenches can only be inserted from both ends of the structure. Since the clamping module of this device is composed of two parts, and the range of clamping size can be adjusted through gear meshing, it is not only applicable to the case where the clamping surface is a plane, but also can realize the clamping of a cylinder with a small gap. The applicable size and a wide range of structures.

Therefore, compared with the current wrench, the device has the advantages of high efficiency, wide application range, convenient operation and the like.

Description of drawings

Fig. 1 is a schematic view of the front structure of the wrench device of the present invention.

Fig. 2 is a sectional view of the wrench device of the present invention.

Fig. 3 is a schematic diagram of the back structure of the wrench device of the present invention after the handle is removed.

Fig. 4 is a schematic diagram of the installation structure of the holding module of the wrench device of the present invention.

Fig. 5 is a schematic structural view of the ratchet 13 of the wrench device of the present invention.

Fig. 6 is a schematic diagram of the installation structure of the rotating module of the wrench device of the present invention.

Fig. 7 is a sectional view of the upper runner 11 of the wrench device of the present invention.

Fig. 8 is a structural schematic diagram of the lower runner 4 of the wrench device of the present invention.

Fig. 9 is a schematic diagram of the installation structure of the clamping module of the wrench device of the present invention.

Fig. 10 is a sectional view of the clamping device of the wrench device of the present invention.

FIG. 11 is a schematic diagram of the structure of the elastic snap ring 22 for adjusting the rotating shaft of the wrench device of the present invention.

In the figure: 1. Holding handle, 2. Cover plate, 3. Cover plate screw, 4. Lower runner, 5. Threaded pin shaft, 6. Clamping support, 7. Clamping screw, 8. Block , 9. Pin shaft, 10. Adjusting shaft, 11. Upper runner, 12. Compression spring, 13. Pawl, 14. Clamping spring, 15. Adjusting gear, 16. Compression spring, 17. Screw, 18 .Wedge-shaped bolt, 19. Locating spring, 20. Ball, 21. Ball cage, 22. Elastic snap ring, 23. Unlocking hole, 24. Bearing cavity, 25. T-shaped slot, 26. Connecting block, 27 .Connecting groove, 28. Lock tongue cavity, 29. Lock groove, 30. Back-stop protrusion, 31. Straight rack.

Detailed ways

A detachable reciprocating wrench, comprising: a handle 1, the wrench also includes an annular ratchet, an annular rolling groove is provided on the end face of the annular ratchet, and an arc-shaped T-shaped groove 25 is provided on the handle 1, The arc-shaped T-shaped groove 25 is embedded in the annular rolling groove on the end face of the annular ratchet and enables the annular ratchet to rotate relatively in the arc-shaped T-shaped groove 25, and a ratchet 13 matched with the annular ratchet is rotatably connected to the handle 1. The ratchet 13 and the handle 1 are provided with a compression spring 12, and the block 8 is connected to the inner ring surface of the ring ratchet. The ring ratchet includes the lower runner 4 and the upper runner 11, and the upper runner One end of 11 is provided with connection block 26, and one end of lower runner 4 is provided with connection groove 27, and described connection block 26 is adapted with described connection groove 27 and is connected by threaded pin shaft 5, on the other end of upper runner 11 One end is provided with lock groove 29, and in lock groove 29 is provided with anti-retreat protrusion 30, and the other end of lower running wheel 4 is provided with the lock buckle that cooperates with lock groove 29, and described lock buckle comprises wedge-shaped dead bolt 18 and lock Tongue chamber 28, described wedge-shaped deadbolt 18 is connected with deadbolt chamber 28 by the screw 17 that is connected on the deadbolt chamber 28, and stage clip 16 is sleeved on screw 17 and stage clip 16 is positioned at the bottom of deadbolt chamber 28 and Between the wedge-shaped bolts 18, when the buckle is buckled into the lock groove 29, the wedge-shaped bolt 18 protrudes from the bolt cavity 28 under the action of the compression spring 16 and conflicts with the anti-retraction protrusion 30, and the lock groove 29 An unlocking hole 23 is provided on it.

In this embodiment, a support cavity 24 is provided on the inner ring surface of the annular ratchet, a clamping support 6 is provided in the support cavity 24, and a straight rack is provided on the side of the clamping support 6 31. An adjustment gear 15 is meshed on the spur rack 31. The adjustment gear 15 is rotationally connected with the ring ratchet through the adjustment shaft 10. The block 8 is set on the clamping support 6 and passed through the clamping support. 6 is connected with ring ratchet.

The clamping block 8 is connected to the clamping support 6 through the clamping screw 7 on the clamping support 6, and the clamping spring 14 is sleeved on the clamping screw 7, and the clamping spring 14 is located between the clamping support 6 and the clamping support 6. between blocks 8.

The present invention will be further described below in conjunction with the accompanying drawings of the description.

An efficient and detachable reciprocating wrench device of the present invention includes a holding module, an annular ratchet and a clamping module.

The holding module includes a holding handle 1 , a pawl 13 , a compression spring 12 , a positioning spring 19 , a ball cage 21 , a ball 20 , a cover plate 2 and cover plate screws 3 . The handle 1 is a "T" shaped structure, the lower part is a cylindrical handle, and the upper end of the handle is an inverted arch structure. The upper end of the inverted arch structure is a one-third arc-shaped T-slot connected to the rotating module, and the cross-section is similar to the T-slot. There is a rectangular groove at both ends of the bottom of the arc-shaped T-shaped groove. A horizontal cantilever shaft is arranged on one wall of the groove. The bottom of the groove is arc-shaped and has a hole. The other side wall of the rectangular groove directly communicates with the outside Form the notch. One end of the ratchet 13 is provided with a shaft hole, which cooperates with the cantilever shaft to form a revolving pair. The other end of the ratchet 13 is in the shape of a machete, and a small cylindrical protrusion is provided on the back, and the ratchet 13 is inserted into a rectangular groove through the notch. . One end of the compression spring 12 is connected with the cylindrical protrusion of the ratchet 13, and the other end is placed in the hole at the bottom of the groove. One end of the positioning spring 19 is sleeved on the cantilever shaft and connected to the shaft hole end of the ratchet 13, and the other end is connected to the cover plate 2, and the cover plate 2 is fixed on the inverted arch structure by two cover plate screws 3, covering the groove mouth. The ball cage 21 and the ball 20 are placed on both sides of the arc-shaped T-shaped groove together.

The upper runner 11 and the lower runner 4 are all semi-circular structures with inclined sawtooth on the outer ring, and two support cavities 24 are provided in the radial direction on the inner ring, which are used to place the clamping module. The two sides of the runner are provided with circumferential raceways. One end of the upper runner 11 is a connecting block 26 with a semi-cylindrical structure, the center of which is provided with a shaft hole, and the other end is provided with a locking groove 29, and the middle of the locking groove is provided with an unlocking hole 23 radially. There is a radial groove in the middle of one end of the lower runner 4, and the bottom of the groove is in the shape of an arc, and coaxial shaft holes and threaded holes are respectively provided on both sides of the groove to form a bracket structure. The other end face of the lower runner 4 is provided with a protruding quadrangular prism lock body, and the middle of its radially upper part is provided with a dead bolt chamber 28 of a rectangular groove structure, and the bottom of the dead bolt chamber 28 is provided with a threaded hole. Place the wedge-shaped deadbolt 18, the center of the inclined surface of the wedge-shaped deadbolt 18 is provided with a sinker through hole, which is connected with the deadbolt chamber 28 through the screw 17 connected to the deadbolt chamber 28, and the screw 17 is sleeved with a clip spring 16 and pressed The spring 16 is located between the bottom of the deadbolt chamber 28 and the wedge-shaped deadbolt 18 . The shaft hole of the connecting block 26 at one end of the upper runner 11 and the shaft hole and the threaded hole at the bracket structure at one end of the lower runner 4 are matched together by the threaded pin shaft 5 to form a rotating pair, which can realize the rotation of the two runners. When the threaded pin shaft 5 rotates relative to each other, the other ends of the upper and lower runners are connected with the buckle through the lock tongue chamber 28, and the wedge-shaped lock tongue 18 collides with the anti-retraction protrusion 30 and is clamped, so that the two runners are closed. . The annular ratchet and the holding module are connected through the cooperation between the ball 20 and the raceway of the annular ratchet, and the ratchet 13 and the inclined sawtooth of the annular ratchet.

The clamping module is installed in the seat cavity 24 of the inner ring of the annular ratchet. The clamping module includes a clamping support 6 , an adjustment gear 15 , an adjustment rotary shaft 10 , a pin shaft 9 , a clamping spring 14 , a clamping screw 7 and a block 8 . The clamping support 6 is a rectangular block with a rectangular groove on its upper surface, a threaded hole at the bottom of the groove, and a protruding straight rack 31 on one side of the clamping support 6 . The clamping support 6 is placed in the support cavity 24 of the inner ring of the annular ratchet, and the spur rack 31 is meshed with the adjusting gear 15 . The adjusting gear 15 is also placed in the bearing cavity 24 of the inner ring of the annular ratchet, and is positioned in the bearing cavity 24 by the adjusting rotating shaft 10, and can drive it to rotate, while the gear mounted in the pin hole on the annular ratchet The pin shaft 9 snaps into the tooth gap to position the adjusting gear 15 after the adjusting gear 15 rotates. The shaft hole of the adjustment gear 15 has a key-like protrusion, and one end of the hexagonal head adjustment shaft 10 is provided with a card slot in the circumferential direction and a longer keyway in the axial direction, which cooperates with the key-like protrusion of the adjustment gear 15 to limit the adjustment of the rotation shaft 10 and the adjustment. For the relative rotation of the gear 15, adjust the other end of the rotating shaft 10 to be a hexagonal head. The semi-circular elastic snap ring 22 cooperates with the slot of the adjusting rotating shaft 10 to axially position the adjusting rotating shaft 10 . The clamping block 8 is a cuboid block with a sinker through hole in the middle. The clamping block 8 is connected to the clamping support 6 through the clamping screw 7 on the clamping support 6, and the clamping screw 7 is sleeved with a clamping Spring 14, and the clamping spring 14 is located between the clamping support 6 and the block 8

Operation steps for tightening or loosening components using this device:

(1) Separate the upper and lower runners 11 and 4, rotate and adjust the four adjusting shafts 10 respectively, so that the four clamping supports 6 form a suitable size space, and then clamp them on the shoulder of the component with a notch, so that The wedge-shaped deadbolt 18 of the lower runner 4 is placed in the deadbolt cavity 28 of the upper runner 11 for locking.

(2) Turn the closed ring ratchet to make the clamping block 8 fit into the gap of the component shaft shoulder under the action of the clamping spring 14, adjust the four adjusting rotation shafts 10 respectively, so that the four clamping supports 6 clamp the shaft Shoulder outer circle. Insert the pin shaft 9 into the tooth gap of the adjusting gear 15 to achieve the purpose of positioning.

(3) Holding the handle 1 by hand can drive the parts to rotate synchronously in one direction, thus tightening or loosening the threaded parts. Rotate in the opposite direction, the annular ratchet and the clamped shoulder do not rotate, but the holding module rotates considerably and returns to the original position, so that the purpose of tightening or loosening can be achieved through repeated operations.

(4) After the tightening or loosening operation is completed, pull out the pin shaft 9, rotate and adjust the rotating shaft 10, so that the clamping support 6 loosens the outer circular surface of the shaft shoulder, and the block 8 is separated from the gap, and the ring ratchet is rotated. A thin rod is inserted into the unlocking hole 23 to allow the wedge-shaped dead bolt 18 to break away from the draw-in groove, and then the upper and lower runners 11 and 4 can be separated to take off the device.

Claims (3)

1. separable reciprocating type spanner; It is characterized in that; Comprise: hold handle (1), said spanner also comprises annular ratchet, on the end face of annular ratchet, is provided with annular slot rolling; Be provided with arcuation T-slot (25) on the handle (1) holding; The annular slot rolling that said arcuation T-slot (25) embeds on the annular ratchet end face also makes annular ratchet rotation relatively take place at arcuation T-slot (25), is rotatably connected to the ratchet (13) that matches with annular ratchet on the handle (1) holding, ratchet (13) with hold handle (1) and be provided with holddown spring (12); On the inner ring surface of annular ratchet, be connected with fixture block (8); Described annular ratchet comprises down runner (4) and last runner (11), is provided with contiguous block (26) at an end of last runner (11), is provided with link slot (27) at an end that descends runner (4); Said contiguous block (26) is suitable with said link slot (27) and be connected by screw thread bearing pin (5); The other end at last runner (11) is provided with locked groove (29), in locked groove (29), is provided with stopping convexity (30), is provided with the snap close that matches with locked groove (29) at the other end that descends runner (4); Said snap close comprises wedge shape dead bolt (18) and lock tongue cavity (28); Said wedge shape dead bolt (18) is connected with lock tongue cavity (28) through the screw (17) that is connected on the lock tongue cavity (28), is positioned between the bottom and wedge shape dead bolt (18) of lock tongue cavity (28), when snap close buckles into locked groove (29) being arranged with stage clip (16) and stage clip (16) on the screw (17); Wedge shape dead bolt (18) protrudes in lock tongue cavity (28) and inconsistent with said stopping protruding (30) under the effect of stage clip (16), on locked groove (29), be provided with unlock hole (23).

2. separable reciprocating type spanner according to claim 1; It is characterized in that; On the inner ring surface of annular ratchet, be provided with bearing cavity (24); In bearing cavity (24), be provided with and clamp bearing (6), be provided with spur rack (31), on spur rack (31), be engaged with adjusting gear (15) in the side that clamps bearing (6); Described adjusting gear (15) revolves axle (10) through adjusting and is rotationally connected with annular ratchet, and said fixture block (8) is located at clamping bearing (6) and upward and through clamping bearing (6) is connected with annular ratchet.

3. separable reciprocating type spanner according to claim 2; It is characterized in that; Fixture block (8) is connected in clamping bearing (6) through being located at the last pinching screw (7) of clamping bearing (6); On pinching screw (7), be arranged with fastening spring (14), and fastening spring (14) is positioned between clamping bearing (6) and the fixture block (8).

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