Skid-proof wrench

Abstract

The utility model relates to the technical field of wrenches, and discloses an anti-skidding wrench which comprises a circular ring and a shell fixed on the right side of the circular ring, a wrenching assembly is arranged in the shell and the circular ring, a locking assembly used for locking is arranged in the circular ring, and the shell and the circular ring are connected through the wrenching assembly. The locking assembly comprises a limiting disc, a sliding groove, an arc-shaped groove, an L-shaped rod, a limiting plate, a fixing disc and a locking piece. According to the anti-skid wrench, through the arrangement of the wrenching assembly and the locking assembly, when a hexagon bolt is screwed in a narrow area, the hexagon bolt only needs to be sleeved with the circular ring, the telescopic rod is controlled in a rotating mode, and then the hexagon bolt can be screwed; the L-shaped rod can move towards the side close to the center of the rotating disc along the sliding groove, the L-shaped rod drives the limiting plate to move together, and the limiting plate can abut against the surface of a hexagon bolt needing to be screwed, so that hexagon bolts of different sizes can be screwed, and the phenomenon that the hexagon bolt is difficult to clamp due to the fact that a worker adjusts the hexagon bolt in advance is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wrenches, in particular to an anti-slip wrench. Background Art

[0002] A wrench is a commonly used hardware tool used for installation and disassembly. It is a hand tool that uses the principle of leverage to turn bolts, screws, nuts and other threaded fasteners such as bolts or nuts. Wrenches are usually made of structural steel made of carbon or alloy materials.

[0003] The wrench is subjected to lateral force. When it is necessary to tighten the hexagonal bolt in some narrow areas, the wrench is difficult to use. Some wrenches can be tightened by turning, but the size of the wrench needs to be adjusted before it can be inserted into the narrow area to be put on the bolt for tightening. However, since the opening size of the wrench is adjusted in advance, it is more troublesome to clamp the bolt with it, and the use has certain disadvantages. For this reason, we propose a non-slip wrench. Utility Model Content

[0004] The purpose of the utility model is to provide a non-slip wrench to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a non-slip wrench, comprising a ring and a shell fixed to the right side of the ring, wherein the shell and the ring are provided with a wrench assembly, and the ring is provided with a locking assembly for locking, wherein the wrench assembly comprises a control telescopic rod, an active bevel gear, a driven bevel gear, and a rotating disk, and the locking assembly comprises:

[0006] A limit plate, the limit plate is rotatably mounted on the inner wall of the ring, a slide groove is provided on the limit plate, and an arc groove is provided on the surface of the rotating disk;

[0007] An L-shaped rod, one end of which is slidably mounted on the inner side of the top slide groove of the limit plate, and the other end of which is fixed to the limit plate;

[0008] The fixed plate is fixed on the inner wall of the circular ring. The fixed plate, the limit plate, the limit plate and the L-shaped rod are provided with locking members for limiting the limit plate. When the limit plate cannot rotate and the turntable rotates, since the L-shaped rod is limited by the slide groove, the turntable can push the L-shaped rod through the arc groove provided on itself, so that the L-shaped rod moves along the slide groove to the side close to the center of the turntable, and the L-shaped rod moves with the limit plate. The limit plate can contact the surface of the hexagonal bolt that needs to be screwed, thereby realizing the screwing of hexagonal bolts of different sizes.

[0009] Preferably, the locking member includes an annular tooth, the surface of the fixed disk is fixed with an annular tooth, the L-shaped rod and the limiting plate are penetrated by the ejector rod and are slidably connected to the ejector rod. One end of the ejector rod away from the center of the limiting disk is hinged with a support rod, and a connecting spring is fixed to the side of the L-shaped rod away from the center of the limiting disk.

[0010] Preferably, one end of the connecting spring away from the L-shaped rod is fixed to the surface of the ejector rod. One end of the support rod away from the ejector rod is hinged with a driven telescopic rod. One end of the driven telescopic rod is slidably installed on the side of the L-shaped rod close to the connecting spring, and the other end of the driven telescopic rod is slidably installed on the inner wall of the ring. A resisting block is fixed to the side of the driven telescopic rod close to the slider.

[0011] Preferably, the slider passes through the chute on the limiting disk and is slidably connected to the limiting disk. A return spring is fixed to the inner side of the chute, and one end of the return spring away from the chute is fixed to the slider. A clamping block is fixed to the side of the slider close to the fixed disk. The clamping block can be clamped in the annular tooth on the surface of the fixed disk, thereby limiting the limiting disk and preventing the limiting disk from rotating. When the L-shaped rod drives the limiting plate to move towards the side close to the center of the turntable, and the limiting plate abuts against the surface of the hexagon bolt, the ejector rod is pushed to move away from the center of the turntable. The ejector rod drives the support rod to push the driven telescopic rod to move downward through the support rod. The driven telescopic rod drives the resisting block to move downward, and the resisting block abuts against the slider, pushing the slider to move away from the fixed disk. The slider drives the clamping block to move together, and the clamping block no longer engages with the annular tooth, thereby realizing the release of the limit on the limiting disk. At this time, the turntable can drive the limiting disk to rotate together by abutting against the chute through the L-shaped rod. Since the turntable and the limiting disk rotate synchronously at this time, the phenomenon that the L-shaped rod and the limiting plate become loose will not occur, and the hexagon bolt can be effectively abutted.

[0012] Preferably, the control telescopic rod penetrates through the housing and the ring. The surface of one end of the control telescopic rod close to the ring is rotatably connected to the housing. A driving bevel gear is fixed to the side of the control telescopic rod that clamps the ring. The driving bevel gear meshes with a driven bevel gear. The driven bevel gear is fixed to the top of the turntable. When screwing the hexagon bolt in a narrow area, only need to put the ring on the hexagon bolt, pull the control telescopic rod to extend and rotate, and the control telescopic rod can drive the driven bevel gear to rotate through the driving bevel gear, so that the turntable rotates. After the locking assembly fixes the hexagon bolt, the hexagon bolt can be screwed, which is convenient to use.

[0013] Preferably, there are convex points on the side of the limiting plate away from the L-shaped rod. When the limiting plate abuts against the surface of the hexagon bolt, the friction between the limiting plate and the hexagon bolt can be increased through the convex points provided on the limiting plate, so that the hexagon bolt can be screwed more stably.

[0014] Compared with the prior art, the utility model provides a non-slip wrench, which has the following beneficial effects:

[0015] 1. The anti-slip wrench, through the provided wrench assembly and locking assembly, when tightening the hexagonal bolt in a narrow area, only needs to put the ring on the hexagonal bolt, rotate the control telescopic rod, and the L-shaped rod can move along the slide groove to the side close to the center of the turntable, and the L-shaped rod moves with the limit plate, and the limit plate can be against the surface of the hexagonal bolt to be tightened, so that hexagonal bolts of different sizes can be tightened, and the staff does not need to adjust in advance, which makes it difficult to get the hexagonal bolt stuck.

[0016] 2. The anti-slip wrench, when the limit plate abuts against the surface of the hexagonal bolt, the push rod is abutted to move to the side away from the center of the turntable, and the push rod pushes the driven telescopic rod to move downward through the support rod, and the driven telescopic rod moves downward with the abutment block, and the abutment block abuts on the slider, pushing the slider to move to the side away from the fixed disk, and the slider moves with the clamping block, and the clamping block is no longer engaged with the annular tooth, thereby releasing the limit on the limit disk. At this time, the turntable can abut on the slide groove through the L-shaped rod to drive the limit disk to rotate together. Since the turntable rotates synchronously with the limit disk at this time, the L-shaped rod and the limit plate will not be loosened, and the hexagonal bolt can be effectively abutted, thereby realizing the twisting and disassembly of the hexagonal bolt, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model without the ring and the shell;

[0019] Figure 3 This is a front view structural diagram of the locking assembly of the utility model;

[0020] Figure 4 This is a bottom view of the locking assembly of the utility model.

[0021] In the figure: 1. ring; 2. shell; 3. pull assembly; 31. control telescopic rod; 32. active bevel gear; 33. driven bevel gear; 34. turntable; 4. locking assembly; 41. limit plate; 42. slide groove; 43. arc groove; 44. L-shaped rod; 45. limit plate; 46. fixed plate; 47. locking piece; 471. annular teeth; 472. push rod; 473. slider; 474. return spring; 475. block; 476. support rod; 477. connecting spring; 478. driven telescopic rod; 479. resistance block. DETAILED DESCRIPTION

[0022] like Figures 1 - 4As shown, the utility model provides a technical solution: an anti-slip wrench, comprising a ring 1 and a shell 2 fixed on the right side of the ring 1, a wrench assembly 3 is arranged inside the shell 2 and the ring 1, and a locking assembly 4 for locking is arranged inside the ring 1, the wrench assembly 3 comprises a control telescopic rod 31, an active bevel gear 32, a driven bevel gear 33, and a turntable 34, and the locking assembly 4 comprises: a limit plate 41, a slide groove 42, an arc groove 43, an L-shaped rod 44, a limit plate 45, a fixed plate 46, and a locking piece 47. The hexagonal bolt can be screwed by rotating the control telescopic rod 31, which can effectively avoid slipping when screwing the bolt, thereby playing an anti-slip role.

[0023] The limit plate 41 is rotatably mounted on the inner wall of the ring 1, a slide groove 42 is provided on the limit plate 41, an arc groove 43 is provided on the surface of the rotating disk 34, one end of the L-shaped rod 44 is slidably mounted on the inner side of the slide groove 42 at the top of the limit plate 41, and the other end of the L-shaped rod 44 is fixed with a limit plate 45, and the fixed plate 46 is fixed on the inner wall of the ring 1, and a locking member for limiting the limit plate 41 is provided on the fixed plate 46, the limit plate 41, the limit plate 45 and the L-shaped rod 44 47. When the limiting plate 41 cannot rotate and the turntable 34 rotates, since the L-shaped rod 44 is limited by the slide groove 42, the turntable 34 can push the L-shaped rod 44 through the arc groove 43 provided on the turntable 34, so that the L-shaped rod 44 moves along the slide groove 42 to the side close to the center of the turntable 34, and the L-shaped rod 44 moves with the limiting plate 45. The limiting plate 45 can be pressed against the surface of the hexagonal bolt that needs to be screwed, so that hexagonal bolts of different sizes can be screwed.

[0024] The locking member 47 includes an annular tooth 471, an annular tooth 471 is fixed on the surface of the fixed plate 46, the L-shaped rod 44 and the limiting plate 45 are penetrated by the push rod 472 and are slidably connected to the push rod 472, the end of the push rod 472 away from the center of the limiting plate 41 is hinged with a support rod 476, a side of the L-shaped rod 44 away from the center of the limiting plate 41 is fixed with a connecting spring 477, the end of the connecting spring 477 away from the L-shaped rod 44 is fixed to the surface of the push rod 472, the end of the support rod 476 away from the push rod 472 is hinged with a driven telescopic rod 478, and the driven telescopic rod 478 is hinged to the driven telescopic rod 478. One end of the telescopic rod 478 is slidably mounted on the side of the L-shaped rod 44 close to the connecting spring 477, and the other end of the driven telescopic rod 478 is slidably mounted on the inner wall of the ring 1. A resistance block 479 is fixed to the side of the driven telescopic rod 478 close to the slider 473. The slider 473 passes through the slide groove 42 on the limit plate 41 and is slidably connected to the limit plate 41. A return spring 474 is fixed to the inner side of the slide groove 42. The end of the return spring 474 away from the slide groove 42 is fixed to the slider 473. The side of the slider 473 close to the fixed plate 46 is fixed with The card block 475 can be stuck in the annular teeth 471 on the surface of the fixed plate 46, thereby limiting the limit plate 41 so that the limit plate 41 cannot rotate. When the L-shaped rod 44 moves the limit plate 45 to the side close to the center of the turntable 34, the limit plate 45 abuts against the surface of the hexagonal bolt, and the push rod 472 is abutted to move to the side away from the center of the turntable 34. The push rod 472 pushes the driven telescopic rod 478 to move downward through the support rod 476. The driven telescopic rod 478 moves downward with the abutment block 479, and the abutment block 479 moves downward. 79 abuts against the slider 473, pushing the slider 473 to move to the side away from the fixed plate 46, and the slider 473 moves with the clamping block 475, and the clamping block 475 is no longer engaged with the annular tooth 471, thereby releasing the limit on the limit plate 41. At this time, the turntable 34 can abut on the slide groove 42 through the L-shaped rod 44 to drive the limit plate 41 to rotate together. Since the turntable 34 rotates synchronously with the limit plate 41 at this time, the L-shaped rod 44 and the limit plate 45 will not be loosened, and the hexagonal bolts can be effectively abutted.

[0025] The control telescopic rod 31 passes through the shell 2 and the ring 1. The end surface of the control telescopic rod 31 close to the ring 1 is rotatably connected to the shell 2. A driving bevel gear 32 is fixed on one side of the control telescopic rod 31 that fastens the ring 1. The driving bevel gear 32 is meshed with the driven bevel gear 33. The driven bevel gear 33 is fixed on the top of the turntable 34. When the hexagonal bolt is screwed in a narrow area, it is only necessary to put the ring 1 on the hexagonal bolt, pull the control telescopic rod 31 to extend and rotate, and the control telescopic rod 31 can drive the driven bevel gear 33 to rotate through the driving bevel gear 32, so that the turntable 34 rotates. After the control locking assembly 4 is fixed to the hexagonal bolt, the hexagonal bolt can be screwed, which is convenient to use.

[0026] A bump is provided on the side of the limiting plate 45 away from the L-shaped rod 44. When the limiting plate 45 abuts against the surface of the hexagonal bolt, the friction between the limiting plate 45 and the hexagonal bolt can be increased through the bumps provided on the limiting plate 45, so that the hexagonal bolt can be screwed more stably.

[0027] In the present utility model, when in use, when it is necessary to screw the hexagonal bolt in a narrow area, only need to hold the whole device, stretch the control telescopic rod 31, so that the ring 1 can be sleeved on the hexagonal bolt, rotate the control telescopic rod 31, and the control telescopic rod 31 drives the turntable 34 to rotate through the driving bevel gear 32 and the driven bevel gear 33. Since the latch 475 is stuck on the annular teeth 471 at this time, the limiting disc 41 cannot rotate. Since the L-shaped rod 44 is limited by the chute 42, the turntable 34 can push the L-shaped rod 44 through the arc-shaped groove 43 opened on itself, so that the L-shaped rod 44 moves along the chute 42 towards the side close to the center of the turntable 34. The L-shaped rod 44 drives the limiting plate 45 to move together, and the limiting plate 45 can abut against the surface of the hexagonal bolt to be screwed, so as to realize screwing hexagonal bolts of different sizes.

[0028] After the limiting plate 45 abuts against the surface of the hexagonal bolt, the ejector rod 472 is pushed to move towards the side away from the center of the turntable 34. The ejector rod 472 pushes the driven telescopic rod 478 to move downward through the support rod 476. The driven telescopic rod 478 drives the abutting block 479 to move downward. The abutting block 479 abuts against the slider 473 and pushes the slider 473 to move towards the side away from the fixed disc 46. The slider 473 drives the latch 475 to move together, and the latch 475 no longer engages with the annular teeth 471, so as to realize the release of the limit on the limiting disc 41. At this time, the turntable 34 can drive the limiting disc 41 to rotate together by abutting against the chute 42 through the L-shaped rod 44. Since the turntable 34 rotates synchronously with the limiting disc 41 at this time, the phenomenon that the L-shaped rod 44 and the limiting plate 45 become loose will not occur, and the hexagonal bolt can be effectively abutted, so as to realize the screwing and disassembly of the hexagonal bolt, which is convenient to use.

[0029] After the whole device is removed, the ejector rod 472 is no longer abutted and resets under the action of the connecting spring 477. The ejector rod 472 pulls the driven telescopic rod 478 to reset through the support rod 476. The driven telescopic rod 478 drives the abutting block 479 to reset. The slider 473 is no longer abutted and drives the latch 475 to reset under the action of the return spring 474, so that the latch 475 is reinserted into the annular teeth 471. Even if the latch 475 cannot be inserted into the annular teeth 471 when just reset, at this time, reverse-rotate the control telescopic rod 31, so as to control the turntable 34 to rotate reversely together. At this time, the turntable 34 drives the limiting disc 41 to rotate reversely together through the L-shaped rod 44. When the latch 475 is inserted into the annular teeth 471, the limiting disc 41 is limited. When the turntable 34 continues to rotate reversely at this time, the L-shaped rod 44 can be controlled to drive the limiting plate 45 to reset.

[0030] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, any modifications or improvements made without departing from the spirit and idea of the present utility model are within the protection scope of the present utility model.

Claims

1. A non-slip wrench, comprising a ring (1) and a housing (2) fixed to the right side of the ring (1), characterized in that: The housing (2) and the ring (1) are provided with a pull assembly (3), the ring (1) is provided with a locking assembly (4) for locking, the pull assembly (3) comprises a control telescopic rod (31), a driving bevel gear (32), a driven bevel gear (33), and a rotating disk (34), and the locking assembly (4) comprises: A limiting plate (41), the limiting plate (41) is rotatably mounted on the inner wall of the ring (1), a sliding groove (42) is provided on the limiting plate (41), and an arc groove (43) is provided on the surface of the rotating plate (34); An L-shaped rod (44), one end of which is slidably mounted on the inner side of the top slide groove (42) of the limiting plate (41), and the other end of which is fixed to a limiting plate (45); A fixed disk (46) is fixed on the inner wall of the circular ring (1); the fixed disk (46), the limiting disk (41), the limiting plate (45) and the L-shaped rod (44) are provided with a locking member (47) for limiting the limiting disk (41).

2. The anti-slip wrench according to claim 1, wherein: The locking member (47) comprises an annular tooth (471), the surface of the fixed plate (46) is fixed with an annular tooth (471), the L-shaped rod (44) and the limiting plate (45) are penetrated by a push rod (472) and are slidably connected to the push rod (472), one end of the push rod (472) away from the center of the limiting plate (41) is hinged with a support rod (476), and the side of the L-shaped rod (44) away from the center of the limiting plate (41) is fixed with a connecting spring (477).

3. The anti-slip wrench according to claim 2, wherein: One end of the connecting spring (477) away from the L-shaped rod (44) is fixed to the surface of the top rod (472), and one end of the supporting rod (476) away from the top rod (472) is hinged with a driven telescopic rod (478), one end of the driven telescopic rod (478) is slidably mounted on a side of the L-shaped rod (44) close to the connecting spring (477), and the other end of the driven telescopic rod (478) is slidably mounted on the inner wall of the ring (1), and a resistance block (479) is fixed to the side of the driven telescopic rod (478) close to the slider (473).

4. The anti-slip wrench according to claim 3, characterized in that: The slider (473) passes through the slide groove (42) on the limiting plate (41) and is slidably connected to the limiting plate (41); a return spring (474) is fixed on the inner side of the slide groove (42); one end of the return spring (474) away from the slide groove (42) is fixed to the slider (473); and a clamping block (475) is fixed on the side of the slider (473) close to the fixed plate (46).

5. The non-slip wrench according to claim 1, wherein: The control telescopic rod (31) passes through the housing (2) and the circular ring (1); one end surface of the control telescopic rod (31) close to the circular ring (1) is rotatably connected to the housing (2); a driving bevel gear (32) is fixed to one side of the control telescopic rod (31) that fastens the circular ring (1); the driving bevel gear (32) is meshed with a driven bevel gear (33); and the driven bevel gear (33) is fixed to the top of a rotating disk (34).

6. The anti-slip wrench according to claim 1, characterized in that: A convex point is arranged on one side of the limiting plate (45) away from the L-shaped rod (44).

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