Anti-falling wrench

CN224373902UActive Publication Date: 2026-06-19SHISHI HUAYI HARDWARE CRAFT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHISHI HUAYI HARDWARE CRAFT CO LTD
Filing Date
2025-08-02
Publication Date
2026-06-19

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Abstract

This utility model discloses an anti-dislodgement wrench, including an anti-dislodgement wrench structure. By incorporating this structure, when in use, the wrench handle is gripped and the hexagonal groove is fitted onto the nut surface from top to bottom. At this time, the clamp prevents the nut from slipping out of the hexagonal groove from the top, making it less likely to require readjustment due to nut slippage, thus making the wrench handle operation smoother. When the anti-dislodgement wrench structure needs to pass around the nut, the adjusting sleeve is pushed backward until the ball moves and engages inside the rear insertion hole. During this process, the adjusting sleeve pulls the clamp back to the rear of the mounting slot via the connecting bracket, thereby releasing the limiting structure at the top of the hexagonal groove, allowing the hexagonal groove to pass through the nut, facilitating the normal operation and use of the anti-dislodgement wrench structure.
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Description

Technical Field

[0001] This utility model relates to the field of wrench tools, specifically a wrench designed to prevent slippage. Background Technology

[0002] A wrench is a commonly used installation and disassembly tool. It is a manual tool that uses the lever principle to tighten or loosen bolts, screws, nuts and other threaded fasteners with open or recessed holes. It is mainly used for installation and disassembly operations.

[0003] Existing patent application number: 202122589964.2. A multi-functional wrench, comprising: a handle, a wrench head, a first groove, a second groove, and a key module. The wrench head is disposed on the top of the handle and is used for installing or removing an oxygen pressure reducing valve. The first groove is formed on one side of the handle and is located in the middle of the handle. The second groove is formed on one side of the handle and is located below the first groove.

[0004] The aforementioned patent describes a wrench structure. In actual use, since the hexagonal groove of the wrench is usually a through structure to allow the screw to pass through and adjust the nut, the nut often easily falls off from both ends of the hexagonal groove when the wrench is used to turn the nut, causing the wrench to rotate unevenly and requiring re-adjustment, which affects the efficiency of disassembly and assembly. Therefore, we propose an anti-drop wrench to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an anti-drop-off wrench to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a non-disengaging wrench, comprising a non-disengaging wrench structure, the non-disengaging wrench structure comprising a handle, a hexagonal groove, an assembly groove, a clamp, a sliding groove, a connecting frame, and an adjusting sleeve. The front end of the handle is provided with a longitudinally penetrating hexagonal groove. The top surface of the front end of the handle is provided with an assembly groove, which is connected to the interior of the hexagonal groove. A clamp is slidably embedded inside the assembly groove, and the clamp can slide to be directly above the hexagonal groove. The rear end of the assembly groove is provided with a sliding groove, and a connecting frame is slidably installed inside the sliding groove. The front end of the connecting frame is welded and fixed to the clamp. An adjusting sleeve is slidably sleeved on the surface of the handle, and the adjusting sleeve is screwed to the top surface of the connecting frame.

[0007] Preferably, the inner diameter of the clamp is smaller than the inner diameter of the hexagonal groove.

[0008] Preferably, when the clamp slides to the rear end of the assembly slot, it will be completely offset from the position of the hexagonal slot.

[0009] Preferably, the clamp and connecting bracket are made of the same material as the handle.

[0010] Preferably, the adjusting sleeve has symmetrically arranged ball bearings on its left and right sidewalls, and the lever handle has symmetrically arranged front and rear insertion holes on its left and right sidewalls. The front and rear insertion holes are in the same horizontal direction, and the front insertion hole is located directly in front of the rear insertion hole. The ball bearings can be movably engaged with the front or rear insertion hole.

[0011] Preferably, the front insertion hole and the rear insertion hole are connected by a guide groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model features an anti-dislodgement wrench structure. When in use, the wrench handle is held and the hexagonal slot is fitted onto the nut surface from top to bottom. At this time, the clamp prevents the nut from falling out of the hexagonal slot, making it less likely to require readjustment due to nut dislodgement. This makes the wrench handle operation smoother. When the anti-dislodgement wrench structure needs to pass around the nut, the adjusting sleeve is pushed backward until the ball moves and engages inside the rear insertion hole. During this process, the adjusting sleeve pulls the clamp back to the rear of the mounting slot via the connecting bracket, thereby releasing the limiting structure at the top of the hexagonal slot and allowing the hexagonal slot to pass through the nut, facilitating the normal operation and use of the anti-dislodgement wrench structure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A schematic diagram of the retracted state of the clamp;

[0016] Figure 3 This is a partial structural diagram of the lever handle in this utility model;

[0017] Figure 4 This is a front view schematic diagram of the adjusting sleeve in this utility model;

[0018] Figure 5 This is a schematic diagram showing the usage state of the anti-drop-off wrench structure in this utility model.

[0019] In the diagram: Anti-drop wrench structure-1, wrench handle-11, hexagonal groove-12, assembly groove-13, clamp-14, slide groove-15, connecting bracket-16, adjusting sleeve-17, ball-bearing ball-18, front insertion hole-19, rear insertion hole-110. Detailed Implementation

[0020] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0021] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 This utility model provides an anti-dislodgement wrench, including an anti-dislodgement wrench structure 1. The anti-dislodgement wrench structure 1 includes a handle 11, a hexagonal groove 12, an assembly groove 13, a clamp 14, a sliding groove 15, a connecting frame 16, and an adjusting sleeve 17. The front end of the handle 11 has a longitudinally penetrating hexagonal groove 12. The top surface of the front end of the handle 11 has an assembly groove 13, which is internally connected to the hexagonal groove 12. The clamp 14 is slidably embedded inside the assembly groove 13 and can slide to be directly above the hexagonal groove 12. The rear end of the assembly groove 13 has a sliding groove 15, and the connecting frame 16 is slidably installed inside the sliding groove 15. The front end of the connecting frame 16 is welded and fixed to the clamp 14. The adjusting sleeve 17 is slidably sleeved on the surface of the handle 11 and screwed to the top surface of the connecting frame 16.

[0022] The inner diameter of the clamp 14 is smaller than that of the hexagonal groove 12, so that the clamp 14 can prevent the nut from falling out of the hexagonal groove 12 from the top. When the clamp 14 slides to the rear end of the mounting groove 13, it will be completely offset from the position of the hexagonal groove 12. The mounting groove 13 can provide sufficient storage length for the clamp 14, allowing the hexagonal groove 12 to pass through the nut normally.

[0023] To further explain, the clamp 14 and the connecting bracket 16 are made of the same material as the wrench handle 11 to ensure structural strength.

[0024] Please see Figure 3 This utility model provides an anti-drop-off wrench. The adjusting sleeve 17 has symmetrically arranged ball bearings 18 on its left and right side walls. The handle 11 has symmetrically arranged front insertion hole 19 and rear insertion hole 110 on its left and right side walls. The front insertion hole 19 and the rear insertion hole 110 are in the same horizontal direction, and the front insertion hole 19 is located directly in front of the rear insertion hole 110. The ball bearings 18 can be movably engaged with the front insertion hole 19 or the rear insertion hole 110, thereby realizing the fixed adjustment of the front and rear position of the adjusting sleeve 17.

[0025] The front insertion hole 19 and the rear insertion hole 110 are connected by a guide groove, which makes the movement of the ball 18 between the front insertion hole 19 and the rear insertion hole 110 smoother and less prone to jamming.

[0026] Specifically, by setting up an anti-drop-off wrench structure 1, before use, first push the adjusting sleeve 17 forward until the contact ball 18 moves and snaps into the inside of the front insertion hole 19. During this process, the adjusting sleeve 17 will push the connecting bracket 16 forward along the slide groove 15, allowing the connecting bracket 16 to lock the clamp 14 above the hexagonal groove 12, thereby completing the adjustment action.

[0027] When in use, hold the handle 11 and put the hexagonal groove 12 onto the surface of the nut from top to bottom. At this time, the clamp 14 restricts the nut from falling out of the hexagonal groove 12 from the top, making it less likely to need to be readjusted due to the nut falling out, making the operation of the handle 11 smoother.

[0028] When the anti-loosening wrench structure 1 needs to go around the nut, push the adjusting sleeve 17 backward until the ball 18 moves and snaps into the inside of the rear insertion hole 110. During this process, the adjusting sleeve 17 pulls the clamp 14 back to the rear of the assembly groove 13 through the connecting bracket 16, thereby releasing the limiting structure at the top of the hexagonal groove 12, allowing the hexagonal groove 12 to pass through the nut, which facilitates the normal operation and use of the anti-loosening wrench structure 1.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A type of anti-drop-off wrench, characterized in that: The system includes an anti-dislodgement wrench structure (1), which comprises a handle (11), a hexagonal groove (12), an assembly groove (13), a clamp (14), a slide groove (15), a connecting frame (16), and an adjusting sleeve (17). The front end of the handle (11) has a longitudinally penetrating hexagonal groove (12), and the top surface of the front end of the handle (11) has an assembly groove (13) that is internally connected to the hexagonal groove (12). The assembly slot (13) is fitted with a clamp (14) which can slide to the top of the hexagonal slot (12). The assembly slot (13) has a sliding groove (15) at the rear end. A connecting frame (16) is slidably installed inside the sliding groove (15). The front end of the connecting frame (16) is welded and fixed to the clamp (14). An adjusting sleeve (17) is slidably fitted on the surface of the handle (11). The adjusting sleeve (17) is screwed to the top surface of the connecting frame (16).

2. The anti-drop wrench according to claim 1, characterized in that: The inner diameter of the clamp (14) is smaller than the inner diameter of the hexagonal groove (12).

3. The anti-dislodgement wrench according to claim 1, characterized in that: When the clamp (14) slides to the rear end of the assembly slot (13), it will be completely offset from the position of the hexagonal slot (12).

4. The anti-dislodgement wrench according to claim 1, characterized in that: The clamp (14) and connecting bracket (16) are made of the same material as the handle (11).

5. The anti-drop wrench according to claim 1, characterized in that: The adjusting sleeve (17) has symmetrically arranged ball bearings (18) on its left and right side walls. The lever handle (11) has symmetrically arranged front insertion hole (19) and rear insertion hole (110) on its left and right side walls. The front insertion hole (19) and the rear insertion hole (110) are in the same horizontal direction, and the front insertion hole (19) is located directly in front of the rear insertion hole (110). The ball bearings (18) can be movably engaged with the front insertion hole (19) or the rear insertion hole (110).

6. The anti-drop wrench according to claim 5, characterized in that: The front insertion hole (19) and the rear insertion hole (110) are connected by a guide groove.