Multi-hole nut wrench

By designing a multi-hole nut wrench structure with adjustable length and angle, the problem of existing wrenches being unable to adjust length and angle is solved, improving ease of use and practicality.

CN224239443UActive Publication Date: 2026-05-15CHANGZHOU YISHEN TECHNOLOGY CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202521245567.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-18
Publication Date
2026-05-15
Estimated Expiration
2035-06-18

AI Technical Summary

Technical Problem

Existing multi-hole nut wrenches cannot adjust their length and rotation angle during use, which limits their use to various disassembly scenarios, resulting in inconvenience and low efficiency.

Method used

A multi-hole nut wrench was designed to achieve adjustable wrench length and angle through extension and adjustment components. The wrench includes a combination structure of handle, through groove, slide, slider, adjusting screw, connecting seat and wrench head, which allows for wrench extension and angle adjustment.

Benefits of technology

It enables convenient extension and flexible rotation of the wrench, improving ease of use and practicality, and adapting to the needs of different disassembly scenarios.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224239443U_ABST
    Figure CN224239443U_ABST
Patent Text Reader

Abstract

The utility model provides a multi-hole nut wrench, which belongs to the field of hardware tools and comprises a handle, a through groove is arranged in the middle of the top of the handle, a stop block is arranged in the middle of the inner wall of the through groove, and two groups of sliding grooves are arranged on two sides of the inner wall of the through groove. The connecting base or the wrench piece drives the adjusting screw rod to rotate in the threaded sleeve at the position of the mounting hole, the other end of the adjusting screw rod rotates on the inner wall of the shaft sleeve, and the shaft sleeve is matched to drive the sliding blocks at the two ends of the movable base to move on the surfaces of the guide rods on the inner walls of the two sliding grooves, so that the extending process is limited; and the stability of the extension structure can be guaranteed through mutual matching of the adjusting screw rod and the threaded sleeve, so that the extension distance of the nut sleeve and the wrench head piece can be adjusted conveniently, and the convenience of the multi-hole nut wrench in actual use is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of hardware tools, specifically a multi-hole nut wrench. Background Technology

[0002] Nut wrenches are hardware tools used in assembly and repair shops, homes, and other places. A good wrench saves time and effort and is easy to use. Existing universal nut wrenches consist of a handle and sockets of different sizes. A search of application CN201820785507.6 discloses a multi-hole nut wrench, which includes a handle, at least one end of the handle has a wrench head, and each wrench head has at least one nut hole on several faces for inserting a nut of a suitable shape and size. The advantage is that multiple nut holes can be made on a single wrench head, thus allowing for multiple nut holes to be inserted into the wrench head. When using a multi-hole nut wrench of the same size, only the matching nut wrench hole in the wrench head needs to be selected, eliminating the need to first remove a socket of the incompatible size, then find a matching socket, and finally install the socket. This greatly reduces the efficiency of nut installation and removal. However, the above description still has the following drawbacks in actual use: the multi-hole nut wrench is easily limited by the disassembly scenario, and the length of the wrench cannot be extended or adjusted. Furthermore, the rotation angle of the wrench cannot be adjusted when disassembling the nut. Therefore, a more practical multi-hole nut wrench needs to be designed. Utility Model Content

[0003] The purpose of this invention is to provide a multi-hole nut wrench to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a multi-hole nut wrench, comprising: a handle, a through groove in the middle of the top of the handle, a stop block in the middle of the inner wall of the through groove, and two sets of sliding grooves on both sides of the inner wall of the through groove;

[0005] An extension assembly includes two sets of sliders slidably connected to the inner walls of two sets of sliding grooves. One side of the two sets of sliders is fixedly connected to the two sides of two movable seats. One end of each movable seat is provided with a bushing. An adjusting screw is rotatably connected to the inner wall of the bushing. The surface of the other end of the adjusting screw is threadedly connected to a threaded sleeve provided on both sides of the inner wall of the through groove. The end faces of the other ends of the two adjusting screws are respectively provided with an adjusting assembly and a wrench.

[0006] An adjustment assembly includes a connecting seat fixedly connected to the other end of an adjustment screw, a connecting groove is provided on the other side of the connecting seat, a connecting shaft is provided on the inner wall of the connecting groove, an adjustment block is rotatably connected to the surface of the connecting shaft, and a nut sleeve is fixedly connected to one side of the adjustment block.

[0007] As a preferred embodiment of the present invention: the surface of the wrench is provided with a plurality of through holes, the inner wall of each of the plurality of through holes is provided with a plurality of slots, the inner wall of each of the plurality of slots is engaged with a locking strip provided on the side of each of the plurality of auxiliary rings, and the plurality of auxiliary rings are of different specifications.

[0008] As a preferred embodiment of this utility model: the inner walls of both sets of sliding grooves are provided with guide rods, and the surface of the guide rods is interlocked with the through holes opened on the surface of the slider.

[0009] As a preferred embodiment of this utility model: a mounting groove is provided on one side of the movable seat, and the inner wall of the mounting groove is connected to the end face of one end of the bushing.

[0010] As a preferred embodiment of this utility model: mounting holes are provided in the middle of both sides of the inner wall of the through groove, and the inner walls of the two mounting holes are engaged with the surfaces of the two threaded sleeves.

[0011] As a preferred embodiment of this utility model: one end of the adjusting block is provided with a rotating hole, and the inner wall of the rotating hole is rotatably connected to the surface of the connecting shaft.

[0012] As a preferred embodiment of this utility model: reinforcing ribs are provided on both sides of the handle surface, and the surface of the reinforcing ribs is designed with anti-slip texture.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The adjusting screw is driven to rotate in the threaded sleeve at the mounting hole position by the connecting seat or wrench, and the other end of the adjusting screw rotates on the inner wall of the bushing. It works with the bushing to drive the sliders at both ends of the moving seat to move on the guide rod surface of the inner wall of the two slide grooves, thereby limiting its extension process. The mutual cooperation between the adjusting screw and the threaded sleeve can ensure the stability of the extension structure, thereby facilitating the adjustment of the extension distance of the nut sleeve and the wrench, and improving the convenience of the multi-hole nut wrench in actual use.

[0015] (2) By engaging the inner wall of the nut sleeve with the surface of the outer nut, the handle, together with the adjusting screw and the connecting seat, drives the connecting shaft to rotate on the surface of the adjusting block, thereby changing the angle of the force applied between the handle and the nut sleeve, improving the flexibility of the multi-hole nut wrench when in use, and further improving the practicality of the multi-hole nut wrench by cooperating with several auxiliary rings of different specifications on the surface of the wrench head. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the extended component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the adjustment component structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the wrench head structure of this utility model.

[0021] In the diagram: 1. Handle; 11. Through slot; 12. Stop block; 13. Slide groove; 14. Mounting hole; 15. Reinforcing rib; 2. Extension assembly; 21. Slider; 22. Moving seat; 23. Bushing; 24. Adjusting screw; 25. Threaded sleeve; 26. Guide rod; 27. Through hole; 28. Mounting groove; 3. Adjusting assembly; 31. Connecting seat; 32. Connecting groove; 33. Connecting shaft; 34. Adjusting block; 35. Nut sleeve; 4. Wrench head; 41. Through hole; 42. Slot; 43. Auxiliary ring; 44. Locking strip. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Please see Figures 1-5 A multi-hole nut wrench includes: a handle 1, a through groove 11 is provided in the middle of the top of the handle 1, a stop block 12 is provided in the middle of the inner wall of the through groove 11, and two sets of sliding grooves 13 are provided on both sides of the inner wall of the through groove 11.

[0024] Please see Figure 3 The extension component 2 includes two sets of sliders 21 that are slidably connected to the inner walls of two sets of slide grooves 13. The opposite side of the two sets of sliders 21 is fixedly connected to the two sides of two movable seats 22. One end of the movable seat 22 is provided with a bushing 23. The inner wall of the bushing 23 is rotatably connected with an adjusting screw 24. The surface of the other end of the adjusting screw 24 is threadedly connected to a threaded sleeve 25 provided on both sides of the inner wall of the through groove 11. The end faces of the other ends of the two adjusting screws 24 are respectively provided with an adjusting component 3 and a wrench 4.

[0025] In practical use: the connecting seat 31 or the wrench head 4 drives the adjusting screw 24 to rotate in the threaded sleeve 25 at the mounting hole 14. The other end of the adjusting screw 24 rotates on the inner wall of the bushing 23, and in conjunction with the bushing 23, drives the sliders 21 at both ends of the moving seat 22 to move on the guide rod 26 surface on the inner wall of the two slide grooves 13, thereby limiting its extension process. The mutual cooperation between the adjusting screw 24 and the threaded sleeve 25 can ensure the stability of the extension structure, thus facilitating the adjustment of the extension distance of the nut sleeve 35 and the wrench head 4, improving the convenience of the multi-hole nut wrench in actual use.

[0026] Please see Figure 4 , Figure 5 Adjustment component 3 includes a connecting seat 31 fixedly connected to the other end of the adjusting screw 24. A connecting groove 32 is provided on the other side of the connecting seat 31. A connecting shaft 33 is provided on the inner wall of the connecting groove 32. An adjusting block 34 is rotatably connected to the surface of the connecting shaft 33. A nut sleeve 35 is fixedly connected to one side of the adjusting block 34.

[0027] The surface of the wrench head 4 has several through holes 41, and the inner wall of each through hole 41 has several slots 42. The inner wall of each slot 42 is engaged with the locking strips 44 on the sides of each auxiliary ring 43. The auxiliary rings 43 have different specifications.

[0028] In practical use: the inner wall of the nut sleeve 35 is engaged with the surface of the outer nut. The handle 1, together with the adjusting screw 24 and the connecting seat 31, drives the connecting shaft 33 to rotate on the surface of the adjusting block 34, thereby changing the angle of force applied between the handle 1 and the nut sleeve 35, improving the flexibility of the multi-hole nut wrench. In addition, with the auxiliary rings 43 of different specifications on the surface of the wrench head 4, the practicality of the multi-hole nut wrench is further improved. Furthermore, the several locking strips 44 on the side of the auxiliary rings 43 can engage with the several locking grooves 42 on the inner wall of the through hole 41, making it easy to replace them when damaged.

[0029] Please see Figure 3 The inner walls of both sets of slide grooves 13 are provided with guide rods 26, and the surface of the guide rods 26 is connected to the through holes 27 opened on the surface of the slider 21.

[0030] In practical use: the slider 21 moves on the surface of the guide rod 26 on the inner wall of the slide groove 13 in conjunction with the through hole 27, thereby facilitating the limiting of the movement process of the moving seat 22.

[0031] Please see Figure 3 The movable seat 22 has a mounting groove 28 on one side, and the inner wall of the mounting groove 28 is connected to the end face of one end of the bushing 23.

[0032] In practical use: Install one end of the bushing 23 onto the inner wall of the mounting groove 28, thereby facilitating the installation and disassembly of the bushing 23 and the movable seat 22.

[0033] Please see Figure 2 Mounting holes 14 are provided in the middle of both sides of the inner wall of the through groove 11. The inner walls of the two mounting holes 14 are engaged with the surfaces of the two threaded sleeves 25.

[0034] In practical use: the surfaces of the two threaded sleeves 25 engage with the inner walls of the two mounting holes 14, thereby facilitating their installation and fixation with the handle 1.

[0035] Please see Figure 4 One end of the adjusting block 34 has a rotating hole, and the inner wall of the rotating hole is rotatably connected to the surface of the connecting shaft 33.

[0036] In practical use: the adjusting block 34 rotates on the surface of the connecting shaft 33 in conjunction with the rotating hole, thereby facilitating the adjustment of the angle for the multi-hole nut wrench to remove the nut.

[0037] Please see Figure 2 The handle 1 has reinforcing ribs 15 on both sides of its surface, and the surface of the reinforcing ribs 15 has an anti-slip texture design.

[0038] In practical use: The reinforcing ribs 15 on both sides of the handle 1 surface, combined with the anti-slip texture design, can prevent the operator from being injured due to slipping during use.

[0039] In use, the connecting seat 31 or the wrench head 4 drives the adjusting screw 24 to rotate within the threaded sleeve 25 at the mounting hole 14. The other end of the adjusting screw 24 rotates on the inner wall of the bushing 23, and in conjunction with the bushing 23, drives the sliders 21 at both ends of the moving seat 22 to move on the guide rods 26 on the inner wall of the two slide grooves 13, limiting their extension process. The mutual cooperation between the adjusting screw 24 and the threaded sleeve 25 ensures the stability of the extension structure, facilitating the adjustment of the extension distance of the nut sleeve 35 and the wrench head 4. When the inner wall of the nut sleeve 35 is engaged with the surface of the outer nut, the handle 1, in conjunction with the adjusting screw 24 and the connecting seat 31, drives the connecting shaft 33 to rotate on the surface of the adjusting block 34, changing the angle of the force applied between the handle 1 and the nut sleeve 35, improving the flexibility of the multi-hole nut wrench in use. Furthermore, the use of several auxiliary rings 43 of different specifications on the surface of the wrench head 4 further enhances the practicality of the multi-hole nut wrench.

[0040] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A multi-hole nut wrench, characterized in that, include: Handle (1), a through groove (11) is provided in the middle of the top of the handle (1), a stop block (12) is provided in the middle of the inner wall of the through groove (11), and two sets of sliding grooves (13) are provided on both sides of the inner wall of the through groove (11). The extension assembly (2) includes two sets of sliders (21) slidably connected to the inner walls of two sets of sliding grooves (13). The opposite side of the two sets of sliders (21) is fixedly connected to the two sides of two movable seats (22). One end of the movable seat (22) is provided with a bushing (23). The inner wall of the bushing (23) is rotatably connected with an adjusting screw (24). The surface of the other end of the adjusting screw (24) is threadedly connected to the threaded sleeves (25) provided on both sides of the inner wall of the through groove (11). The end faces of the other ends of the two adjusting screws (24) are respectively provided with an adjusting assembly (3) and a wrench (4). Adjustment assembly (3), the adjustment assembly (3) includes a connecting seat (31) fixedly connected to the other end of the adjustment screw (24), a connecting groove (32) is provided on the other side of the connecting seat (31), a connecting shaft (33) is provided on the inner wall of the connecting groove (32), an adjustment block (34) is rotatably connected to the surface of the connecting shaft (33), and a nut sleeve (35) is fixedly connected to one side of the adjustment block (34).

2. A multi-hole nut wrench according to claim 1, characterized in that: The surface of the wrench (4) is provided with a number of through holes (41), and the inner wall of each of the through holes (41) is provided with a number of slots (42). The inner wall of each of the slots (42) is engaged with the locking strips (44) provided on the sides of each of the auxiliary rings (43). The specifications of the auxiliary rings (43) are different.

3. A multi-hole nut wrench according to claim 1, characterized in that: The inner walls of both sets of slides (13) are provided with guide rods (26), and the surface of the guide rods (26) is interlocked with the through holes (27) opened on the surface of the slider (21).

4. A multi-hole nut wrench according to claim 1, characterized in that: The movable seat (22) has an installation groove (28) on one side, and the inner wall of the installation groove (28) is installed and connected to the end face of one end of the bushing (23).

5. A multi-hole nut wrench according to claim 1, characterized in that: Mounting holes (14) are provided in the middle of both sides of the inner wall of the through groove (11), and the inner walls of the two mounting holes (14) are engaged with the surfaces of the two threaded sleeves (25).

6. A multi-hole nut wrench according to claim 1, characterized in that: One end of the adjusting block (34) is provided with a rotating hole, and the inner wall of the rotating hole is rotatably connected to the surface of the connecting shaft (33).

7. A multi-hole nut wrench according to claim 1, characterized in that: The handle (1) has reinforcing ribs (15) on both sides of its surface, and the surface of the reinforcing ribs (15) is designed with anti-slip texture.