Adjustable jaw wrench

Abstract

The utility model discloses an adjustable jaw wrench which comprises a chuck, three grippers and a rotating handle, one side face of the chuck is provided with three sliding grooves, the three sliding grooves are all arranged in the radial direction of the chuck, and the included angle between every two adjacent sliding grooves is 120 degrees. The three grippers are connected with the three sliding grooves in a sliding mode respectively, each gripper comprises a sliding block, a connecting piece and a clamping block, each sliding block is connected with one sliding groove in a sliding mode, each clamping block is detachably connected with the corresponding sliding block through the corresponding connecting piece, each clamping block is provided with protruding parts, and the three protruding parts can be inserted into the three clamping grooves in the edge of the nut respectively; the rotating handle is fixedly connected with the other side face of the chuck. The problem that in the prior art, a wrench cannot be suitable for rotating and adjusting nuts of various different specifications is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wrenches, and particularly relates to an adjustable jaw wrench. Background Art

[0002] A wrench is also called an ordinary wrench, and its use is relatively simple. It is mainly divided into single-end fixed wrenches, double-end fixed wrenches, adjustable wrenches, socket wrenches, multi-purpose wrenches, impact wrenches, socket sets, socket drivers, torque wrenches, torque screwdrivers, cross wrenches, ratchet wrenches, hook wrenches, hexagon socket wrenches, square socket wrenches, manual clutch torque wrenches, pipe wrenches, T-shaped wrenches, L-shaped wrenches, triple wrenches, crescent wrenches, tubing wrenches, tire wrenches, spark plug wrenches, filter wrenches, combination wrenches, and other wrenches.

[0003] In actual use, due to the variety of nuts, common wrenches cannot be used to rotate and adjust nuts of various different specifications. Each type of nut requires a specific wrench, which increases costs and is inconvenient to use in narrow spaces. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above technical deficiencies and provide an adjustable jaw wrench to solve the problem that existing wrenches cannot be used to rotate and adjust nuts of various different specifications.

[0005] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides an adjustable jaw wrench, which includes a chuck, three grippers, and a rotating handle. One side of the chuck is provided with three sliding grooves, and all three sliding grooves are arranged along the radial direction of the chuck, and the included angle between adjacent two sliding grooves is 120°;

[0007] The three grippers are respectively slidably connected to the three sliding grooves. Among them, each gripper includes a slider, a connecting member, and a clamping block. The slider is slidably connected to a sliding groove, the clamping block is detachably connected to the slider via the connecting member, and a protruding portion is provided on the clamping block. The three protruding portions can be respectively inserted into three card slots on the edge of the nut;

[0008] The rotating handle is fixedly connected to the other side of the chuck.

[0009] In some embodiments, the sliding groove is a T-shaped sliding groove, and the slider is a T-shaped slider.

[0010] In some embodiments, at least one threaded hole is opened on the slider, at least one through hole is opened on the clamping block, the connecting member is at least one screw, and the screw passes through the through hole and is screwed with the threaded hole to fix the slider and the clamping block.

[0011] In some embodiments, the raised portion is square-shaped, provided at the middle of one end of the clamping block, and located below the slider.

[0012] In some embodiments, the raised portion and the clamping block are integrally formed.

[0013] In some embodiments, the rotating handle is fixedly connected to the chuck through at least two bolts.

[0014] In some embodiments, a rubber sheath is sleeved on the rotating handle.

[0015] In some embodiments, a through hole is formed at the center of the chuck, and the inner diameter of the through hole is 1 / 2 - 2 / 3 of the inner diameter of the chuck.

[0016] In some embodiments, a plurality of grooves are formed in the chuck along the circumferential direction.

[0017] In some embodiments, the chuck, the slider, the clamping block, and the rotating handle are all made of alloy plates.

[0018] Compared with the prior art, an adjustable jaw wrench provided by the present utility model has three sliding grooves provided on one side surface of the chuck, and the three sliding grooves are all arranged along the radial direction of the chuck, and the included angle between adjacent two sliding grooves is 120°. Three grippers are respectively slidably connected to the three sliding grooves. Among them, the gripper includes a slider, a connecting member, and a clamping block. The slider is slidably connected to one sliding groove, the clamping block is detachably connected to the slider via the connecting member, and a raised portion is provided on the clamping block. By sliding the three grippers, the clamping space formed by enclosing between the three grippers corresponds to the outer diameter of the nut, and the three raised portions can be respectively inserted into three grooves on the edge of the nut, effectively ensuring that the wrench can rotate and adjust nuts of various different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of an adjustable jaw wrench provided by an embodiment of the present utility model;

[0020] Figure 2 is a front view of an adjustable jaw wrench provided by an embodiment of the present utility model;

[0021] Figure 3 is a schematic structural diagram of a nut provided by an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the purpose, technical solutions and advantages of the present utility model more clear and understandable, the following further details the present utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] In order to solve the technical problem that a wrench in the prior art cannot be applied to rotate and adjust nuts of various different specifications, the present utility model provides an adjustable jaw wrench, which can realize the rotation and adjustment of nuts of various different specifications.

[0024] Please refer to Figures 1 - 3 , Figures 1 - 3 which is an adjustable jaw wrench in an embodiment of the present utility model, including a chuck 1, three grippers 2 and a rotating handle 3. A side surface of the chuck 1 is provided with three sliding grooves 11, and the three sliding grooves 11 are all arranged along the radial direction of the chuck 1, and the included angle between adjacent two sliding grooves 11 is 120°; the three grippers 2 are respectively slidably connected with the three sliding grooves. Among them, the gripper 2 includes a slider 21, a connecting member 22 and a clamping block 23. The slider 21 is slidably connected with a sliding groove 11. The clamping block 23 is detachably connected with the slider 21 via the connecting member 22, and a convex portion 231 is arranged on the clamping block 23. The three convex portions 231 can be respectively inserted into three clamping grooves a1 on the edge of the nut A; the rotating handle 3 is fixedly connected with the other side surface of the chuck 1.

[0025] In this specific embodiment, the sliding groove 11 is a T-shaped sliding groove 11, the slider 21 is a T-shaped slider 21, and the slider 21 is slidably matched with the sliding groove 11. By sliding the three sliders 21 along the length direction of the sliding groove 11, the size of the clamping space formed by enclosing the three clamping blocks 23 can be adjusted.

[0026] It should be noted that in order to adapt to nuts of different specifications, the clamping block 23 needs to be replaced. Specifically, at least one threaded hole is opened on the slider 21, at least one through hole 12 is opened on the clamping block 23, and the connecting member 22 is at least one screw. The screw passes through the through hole 12 and is screwed with the threaded hole to fix the slider 21 and the clamping block 23.

[0027] Specifically, the convex portion 231 is in the shape of a square block, the convex portion 231 is arranged in the middle of one end of the clamping block 23, and the convex portion 231 is located below the slider 21.

[0028] Among them, the sizes of the convex portions 231 on different clamping blocks 23 are different. Each clamping block can adapt to one specification of nut, and the convex portion 231 and the clamping block 23 are integrally formed.

[0029] In the present specific embodiment, at least two threaded connection holes are spaced on the chuck 1, and the rotating handle 3 is matched with the threaded connection holes through bolts, so that the rotating handle 3 is fixedly connected to the chuck 1. Wherein, the length direction of the rotating handle 3 is consistent with the radial direction of the chuck 1. In addition, a rubber sheath is sleeved on the rotating handle 3.

[0030] On the basis of the above solution, in order to reduce the weight of the adjustable jaw wrench, specifically, a through hole 12 is opened at the center of the chuck 1, and the inner diameter of the through hole 12 is 1 / 2 - 2 / 3 of the inner diameter of the chuck 1. The chuck 1 is provided with a plurality of grooves 13 along the circumferential direction; in the present specific embodiment, the inner diameter of the through hole 12 is 1 / 2 of the inner diameter of the chuck 1, and the chuck 1, the slider 21, the clamping block 23 and the rotating handle 3 are all made of alloy plates.

[0031] For a better understanding of the present invention, the following is combined with Figures 1 to 3 to elaborate on the technical solution of the present invention in detail:

[0032] During use, it is necessary to replace the appropriate clamping block 23 according to the size of the nut. By sliding and adjusting the three sliders 21, the clamping space formed by enclosing between the three clamping blocks 23 is matched with the outer diameter of the nut. It can be achieved by inserting the three convex portions 231 into the three slots a1 on the edge of the nut A respectively. When the nut is fixed relatively firmly, a copper bar can be used to strike the rotating handle 3.

[0033] The above specific embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An adjustable jaw wrench, comprising a chuck, three grips and a rotating handle, characterized in that: Three slide grooves are provided on one side of the chuck, and the three slide grooves are all arranged along the radial direction of the chuck, and the angle between two adjacent slide grooves is 120°; The three grippers are respectively slidably connected to the three slide grooves, wherein the grippers include a slider, a connector and a clamping block, the slider is slidably connected to a slide groove, the clamping block is detachably connected to the slider via the connector, and a protrusion is provided on the clamping block, and the three protrusions can be respectively inserted into the three clamping grooves on the edge of the nut; The rotating handle is fixedly connected to the other side surface of the chuck.

2. An adjustable jaw wrench according to claim 1, characterized in that: The slide groove is a T-shaped slide groove, and the slider is a T-shaped slider.

3. The adjustable jaw wrench according to claim 1, characterized in that: The slider is provided with at least one threaded hole, the block is provided with at least one through hole, and the connecting member is at least one screw, which passes through the through hole and is screwed into the threaded hole to provide fixed connection between the slider and the block.

4. The adjustable jaw wrench according to claim 1, characterized in that: The protrusion is in a square shape, is arranged in the middle of one end of the clamping block, and is located below the sliding block.

5. An adjustable jaw wrench according to claim 4, characterized in that: The protrusion and the clamping block are integrally formed.

6. The adjustable jaw wrench according to claim 1, characterized in that: The rotating handle is fixedly connected to the chuck via at least two bolts.

7. The adjustable jaw wrench according to claim 1, characterized in that: The rotating handle is sleeved with a rubber sheath.

8. The adjustable jaw wrench according to claim 1, characterized in that: A through hole is provided at the center of the chuck, and the inner diameter of the through hole is 1 / 2-2 / 3 of the inner diameter of the chuck.

9. An adjustable jaw wrench according to claim 8, characterized in that: The chuck is provided with a plurality of grooves along the circumferential direction.

10. The adjustable jaw wrench according to claim 1, characterized in that: The chuck, the slide block, the clamping block and the rotating handle are all made of alloy plates.

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