Anti-explosion multipurpose wrench

Abstract

The utility model relates to the technical field of wrenches, and discloses an anti-explosion multipurpose wrench which comprises a handle, a wrench body and an anti-explosion cover. The clamping structure comprises a first clamping jaw, a second clamping jaw and protruding blocks, the first clamping jaw is fixedly arranged at the end of the handle, the second clamping jaw is movably connected with the handle, the second clamping jaw can be close to the bottom of the first clamping jaw, the bottom of the second clamping jaw and the bottom of the first clamping jaw are each fixedly provided with one protruding block, and the two protruding blocks jointly form a polygonal block; the second clamping jaw gets close to the first clamping jaw, the close clamping faces of the second clamping jaw and the first clamping jaw clamp a nut, the nut can be loosened and tightened by rotating the handle, the two protruding blocks are inserted into the inner hexagonal hole, and the distance between the two protruding blocks is adjusted by making the second clamping jaw get away from or get close to the first clamping jaw. The two protruding blocks are used for abutting against the two opposite planes of the inner hexagonal hole, the screw can be loosened and tightened by rotating the handle, functionality and adaptability are higher, using flexibility is better, and the anti-explosion first-aid repair device is suitable for the scenes where anti-explosion first-aid repair has more functional requirements.

Description

Technical Field

[0001] This utility model relates to the field of wrench technology, and in particular to an explosion-proof multi-purpose wrench. Background Technology

[0002] A wrench is a commonly used tool for installation and disassembly. It is a hand tool that uses leverage to tighten or loosen bolts, screws, nuts, and other threaded fasteners.

[0003] A search revealed an explosion-proof multi-purpose valve wrench (publication number: CN217915041U) in the prior art, comprising a handle and a wrench head; the wrench head includes a first opening, the first opening having a first clamping surface, a second clamping surface and an abutment surface, the first clamping surface and the second clamping surface being opposite and parallel, the abutment surface being located between the first clamping surface and the second clamping surface and the two ends of the abutment surface being respectively connected to the first clamping surface and the second clamping surface; and a second opening, which is an inner square hole, the second opening being located on one side of the first opening.

[0004] In existing technologies, the tightness adjustment is mainly achieved by clamping the screw with two jaws that can approach each other and rotating the handle. However, the jaws can only grip polygonal caps. For screws with round heads and internal hexagonal sockets, the jaws will slip after gripping, requiring a corresponding hexagonal wrench to loosen the screw. The existing gripping method is difficult to meet the tightness requirements of this type of screw, limiting its applicability and leaving room for optimization.

[0005] Therefore, we propose an explosion-proof multi-purpose wrench. Utility Model Content

[0006] The present invention mainly addresses the technical problem of limited applicability mentioned above by providing an explosion-proof multi-purpose wrench.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: an explosion-proof multi-purpose wrench, comprising:

[0008] The handle is formed into a rod body, and an insulating rubber sleeve is fitted over the outside of the handle;

[0009] A clamping structure is provided at the end of the handle for locking. The clamping structure includes a first clamping jaw, a second clamping jaw, and a protrusion. The first clamping jaw is fixedly provided at the end of the handle. The second clamping jaw is movably connected to the handle and can approach the first clamping jaw. A protrusion is fixedly installed at the bottom of both the second clamping jaw and the first clamping jaw, and the two protrusions together form a polygonal block.

[0010] A drive structure is provided on one side of the handle to push the second gripper closer to the first gripper. The drive structure includes a drive screw and a lug plate. The lug plate is fixedly connected to the second gripper, and the drive screw is rotatably connected to the handle and threadedly connected to the lug plate.

[0011] In a preferred embodiment of this utility model, both the first gripper and the second gripper are rectangular blocks, the first gripper is integrally formed with the handle, the protrusion is a trapezoidal block, and the two protrusions together form a hexagonal block.

[0012] In a preferred embodiment of this utility model, a groove for adapting the ear plate is provided on the side of the handle near the second gripper, and the ear plate is slidably disposed in the groove.

[0013] In a preferred embodiment of this utility model, the ear plate has a threaded hole through it, and the drive screw is threadedly connected to the threaded hole of the ear plate.

[0014] In a preferred embodiment of this utility model, the drive structure further includes a protective shell, a worm gear, and a worm. The protective shell is fixedly installed at one end of the handle, and the worm gear and worm are rotatably connected to the protective shell. The worm meshes with the worm gear, and the drive screw is detachably connected to the ear plate.

[0015] In a preferred embodiment of this utility model, the driving structure further includes a plug and a socket, the end of the driving screw has a socket, the plug is fixedly connected to the worm gear, and the plug is inserted into the socket.

[0016] In a preferred embodiment of this utility model, the drive structure further includes a rotating handle, which is fixedly connected to the worm gear and extends through the protective shell to the outside.

[0017] Beneficial effects

[0018] This utility model provides an explosion-proof multi-purpose wrench. It has the following beneficial effects:

[0019] 1. This explosion-proof multi-purpose wrench, with its second jaw close to the first jaw, allows for tightening of nuts or valve stems when needed. The nut is clamped by the interlocking surfaces of the second and first jaws, and the handle can be turned to tighten or loosen the nut. For hexagonal valve stems or screws, two protrusions are inserted into the hexagonal hole. The distance between the two protrusions is adjusted by moving the second jaw closer to or away from the first jaw, and the two protrusions abut against the two opposing planes of the hexagonal hole. Turning the handle tightens or loosens the screw. This design offers enhanced functionality and adaptability, providing greater flexibility and suitability for explosion-proof emergency repair scenarios with high functional requirements.

[0020] 2. This explosion-proof multi-purpose wrench, by rotating the drive screw, drives the ear plate to slide in the slide groove. The ear plate drives the second clamping jaw to move closer to or further away from the first clamping jaw to adjust its position. The ear plate is a racket-shaped block, which can ensure the stability of the displacement of the second clamping jaw and reduce the amplitude of the second clamping jaw's shaking. As a result, the second clamping jaw has higher precision when clamping the first clamping jaw and is less likely to loosen.

[0021] 3. This explosion-proof multi-purpose wrench, by rotating a worm gear, drives a worm wheel to rotate, which in turn drives a drive screw to rotate and displace the lug. Utilizing the self-locking characteristics of the worm and worm wheel transmission, it provides excellent position adjustment for the second gripper, resulting in stronger locking performance and a tighter grip on objects between the second and first grippers. Rotating the drive screw is easier and less strenuous. The drive screw and worm wheel can be installed by inserting the insert block into the insertion hole. The protective shell is locked to the end of the handle by a screw. When the protective shell is removed, the entire drive structure can be separated from the drive screw, facilitating oiling and maintenance of the drive screw. Attached Figure Description

[0022] Figure 1 This is one of the overall perspective views of this utility model;

[0023] Figure 2 This is the second overall perspective view of the present utility model;

[0024] Figure 3 This is a perspective view of the second gripper and ear plate of this utility model;

[0025] Figure 4 This is a perspective view of the drive screw of this utility model;

[0026] Figure 5 This is a perspective view of the worm gear and worm of this utility model.

[0027] Legend: 10. Handle; 11. First gripper; 12. Second gripper; 13. Protrusion; 20. Drive screw; 21. Ear plate; 30. Protective shell; 31. Worm gear; 32. Worm; 33. Insertion block; 34. Insertion hole; 35. Rotary handle. Detailed Implementation

[0028] An explosion-proof multi-purpose wrench, such as Figure 1 and Figure 2 As shown, it includes:

[0029] The handle 10 is formed into a rod body. An insulating sleeve is fitted on the outside of the handle 10. The insulating sleeve can increase the contact force between the hand and the handle 10 and prevent electric shock.

[0030] A clamping structure is provided at the end of the handle 10 for locking. The clamping structure includes a first clamping jaw 11, a second clamping jaw 12, and a protrusion 13. The first clamping jaw 11 is fixedly provided at the end of the handle 10. The second clamping jaw 12 is movably connected to the handle 10 and can approach the first clamping jaw 11. A protrusion 13 is fixedly installed at the bottom of both the second clamping jaw 12 and the first clamping jaw 11. The two protrusions 13 together form a polygonal block. The first clamping jaw 11 and the second clamping jaw 12 are both rectangular blocks. The first clamping jaw 11 is integrally formed with the handle 10. The protrusion 13 is a trapezoidal block. The two protrusions 13 together form a hexagonal block.

[0031] In this solution, the second clamping jaw 12 approaches the first clamping jaw 11. When it is necessary to clamp a nut or valve stem, the nut is clamped by the clamping surfaces of the second clamping jaw 12 and the first clamping jaw 11 approaching each other. The nut can be tightened or loosened by turning the handle 10. For valve stems or screws with internal hexagonal sockets, the two protrusions 13 are inserted into the internal hexagonal socket. The distance between the two protrusions 13 is adjusted by moving the second clamping jaw 12 away from or closer to the first clamping jaw 11. The two protrusions 13 abut against the two opposite planes of the internal hexagonal socket. Turning the handle 10 can tighten or loosen the screw. This solution has stronger functionality and adaptability, better flexibility of use, and is suitable for scenarios with high functional requirements in explosion-proof emergency repairs.

[0032] like Figure 2 and Figure 3 As shown, the drive structure is located on one side of the handle 10 to push the second gripper 12 closer to the first gripper 11. The drive structure includes a drive screw 20 and an ear plate 21. The ear plate 21 is fixedly connected to the second gripper 12. The drive screw 20 is rotatably connected to the handle 10 and threadedly connected to the ear plate 21. A groove adapted to the ear plate 21 is provided on the side of the handle 10 near the second gripper 12. The ear plate 21 is slidably disposed in the groove. A threaded hole is provided through the ear plate 21. The drive screw 20 is threadedly connected to the threaded hole of the ear plate 21.

[0033] In this design, by rotating the drive screw 20, the ear plate 21 is driven to slide within the groove. The ear plate 21 moves the second gripper 12 closer to or further away from the first gripper 11 to adjust its position. The ear plate 21 is a racket-shaped block, which can ensure the stability of the displacement of the second gripper 12 and reduce the amplitude of the second gripper 12's wobbling. As a result, the second gripper 12 has higher precision when clamping the first gripper 11 and is less prone to loosening.

[0034] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the drive structure also includes a protective shell 30, a worm gear 31, and a worm 32. The protective shell 30 is fixedly installed at one end of the handle 10. The worm gear 31 and the worm 32 are rotatably connected to the protective shell 30. The worm 32 meshes with the worm gear 31. The drive screw 20 is detachably connected to the ear plate 21. The drive structure also includes a plug block 33 and a socket 34. The end of the drive screw 20 has a socket 34. The plug block 33 is fixedly connected to the worm gear 31. The plug block 33 is inserted into the socket 34.

[0035] In this design, rotating the worm gear 32 drives the worm wheel 31 to rotate, which in turn drives the drive screw 20 to rotate and displace the ear plate 21. Utilizing the transmission and self-locking characteristics of the worm gear 32 and worm wheel 31, the design provides excellent position adjustment for the second gripper 12, resulting in stronger locking performance and a tighter gripping of the object between the second gripper 12 and the first gripper 11. Rotating the drive screw 20 is also easier and less strenuous. Inserting the insert block 33 into the insert hole 34 allows for the installation of the drive screw 20 and the worm wheel 31. The protective shell 30 is secured to the end of the handle 10 with screws. Removing the protective shell 30 allows the entire drive structure to be separated from the drive screw 20, facilitating oiling and maintenance of the drive screw 20.

[0036] like Figure 5 As shown, the drive structure also includes a handle 35, which is fixedly connected to the worm gear 32. The handle 35 extends through the protective shell 30 to the outside. As a further optimization, a knob with anti-slip texture is fixedly installed at the end of the handle 35. By rotating the handle 35, the handle 35 drives the worm gear 32 to rotate, and the worm gear 32 drives the worm wheel 31 to rotate, thereby rotating the drive screw 20 to adjust the position of the second gripper 12.

[0037] The working principle of this utility model is as follows: Rotating the handle 35 drives the worm 32 to rotate, the worm 32 drives the worm wheel 31 to rotate, and the worm wheel 31 drives the drive screw 20 to rotate, causing the ear plate 21 to move. The ear plate 21 slides in the groove, and the ear plate 21 drives the second clamping jaw 12 to move closer to or further away from the first clamping jaw 11 to adjust its position. The ear plate 21 is a racket-shaped block, which can ensure the stability of the displacement of the second clamping jaw 12. The nut is clamped by the clamping surfaces of the second clamping jaw 12 and the first clamping jaw 11 approaching each other. Rotating the handle 10 can loosen or tighten the nut. For the internal hexagonal valve stem or screw, by inserting two protrusions 13 into the internal hexagonal hole, the distance between the two protrusions 13 is adjusted by moving the second clamping jaw 12 closer to or further away from the first clamping jaw 11. The two protrusions 13 abut against the two opposite planes of the internal hexagonal hole. Rotating the handle 10 can loosen or tighten the internal hexagonal screw.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A blast resistant multi-purpose wrench, characterized in that, The utility model relates to a handle (10) is formed the pole body, and the outside of handle (10) is equipped with the insulating rubber sleeve, and the utility model relates to a clamping structure is set up in the end of handle (10) for locking, and the clamping structure includes first jaw (11), second jaw (12) and lug (13), first jaw (11) is fixedly arranged in the end of handle (10), second jaw (12) is movably connected with handle (10), and second jaw (12) can be close to first jaw (11), and the bottom of second jaw (12) and first jaw (11) is fixedly installed with one lug (13), and two lugs (13) form a polygon block together. The utility model relates to a drive structure is set up in one side of handle (10) for pushing second jaw (12) close to first jaw (11), and the drive structure includes drive screw (20) and lug plate (21), lug plate (21) is fixedly connected with second jaw (12), and drive screw (20) is rotatably connected with handle (10) and is threadedly connected with lug plate (21). The utility model discloses a handle (10) is close to the side of second jaw (12) and is seted up with the sliding slot of adapting lug plate (21), and lug plate (21) is slidably arranged in the sliding slot. The utility model discloses a lug plate (21) is passed through and is seted up with the threaded hole, and drive screw (20) is threadedly connected with the threaded hole of lug plate (21).

2. The explosion-proof multi-purpose wrench according to claim 1, characterized in that: The utility model discloses a drive structure still includes protection shell (30), worm wheel (31) and worm (32), protection shell (30) is fixedly installed in one end of handle (10), worm wheel (31) and worm (32) are rotatably connected with protection shell (30), and worm (32) is engaged with worm wheel (31), and drive screw (20) is detachably connected with lug plate (21).

3. The explosion-proof multi-purpose wrench of claim 1, wherein: The utility model discloses a drive structure still includes plug block (33) and insertion hole (34), and the end of drive screw (20) is seted up with insertion hole (34), and plug block (33) is fixedly connected with worm wheel (31), and plug block (33) is inserted with insertion hole (34).

4. The explosion-proof multi-purpose wrench of claim 1, wherein: The utility model discloses a drive structure still includes handle (35), handle (35) is fixedly connected with worm (32), and handle (35) extends to the outside through protection shell (30).

5. The explosion-proof multi-purpose wrench of claim 1, wherein: ​ 6. The explosion-proof multi-purpose wrench according to claim 5, characterized in that: ​ 7. The explosion-proof multi-purpose wrench of claim 5, wherein: ​

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