A rotatable bolt removal tool

By designing a rotatable bolt removal and installation tool, which utilizes a movable jaw and a rotating pin to adjust the angle and length, the problem of insufficient applicability of existing wrenches in narrow and corner positions is solved, thus improving work efficiency.

CN224527061UActive Publication Date: 2026-07-21SHANGHAI HORIZON EQUIP ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI HORIZON EQUIP ENG
Filing Date
2025-07-16
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing wrenches are not suitable for use in narrow environments and corners, which affects work efficiency.

Method used

A rotatable bolt removal and installation tool was designed, which adjusts the angle and length of the wrench head through a movable jaw and a rotating pin, and combines multiple connecting parts to adapt to different working environments.

Benefits of technology

It improves the efficiency of bolt removal and installation in narrow and corner locations, and enhances the applicability of the work.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a rotatable bolt removal and installation tool, comprising: a wrench head, one end of which is provided with a fixed jaw and a movable jaw, the movable jaw being movably positioned close to or away from the fixed jaw; a fixing member, the other end of the wrench head being rotatably mounted on one end of the fixing member via a rotating pin; a first connecting member, one end of which is detachably connected to the other end of the fixing member; a second connecting member, one end of which is detachably connected to the other end of the first connecting member; and a sleeve, the other end of which is detachably connected to the sleeve. By applying this utility model, a rotatable bolt removal and installation tool is provided. The overall length of the wrench can be adjusted through the combination of connecting members to suit confined working environments; the angle between the wrench head and the fixing member can be adjusted through the rotating pin to suit the removal and installation of bolts located in corners, thereby improving work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of wrench technology, and in particular to a rotatable bolt assembly and disassembly tool. Background Technology

[0002] A wrench is a hand tool specifically designed for tightening or loosening threaded fasteners such as bolts and nuts. It uses an opening, socket, or other special structure that matches the shape of the bolt or nut to generate torque under the application of external force, causing the bolt or nut to rotate around its axis, thereby achieving the purpose of tightening or loosening.

[0003] In the existing technology, existing wrenches are often one-piece straight-handle wrenches or curved-handle wrenches. One-piece wrenches are relatively long, and longer wrenches are often not suitable for narrow working environments. In addition, some bolts require the wrench to be rotated to a certain angle to tighten, while the bending angle of curved-handle wrenches is often fixed, which is not suitable for the installation and removal of bolts in certain positions, such as bolts in corners, thus affecting subsequent work and reducing work efficiency. Utility Model Content

[0004] In view of this, and to solve the above problems, the purpose of this utility model is to provide a rotatable bolt removal and installation tool, comprising:

[0005] A wrench head, one end of which is provided with a fixed jaw and a movable jaw, the movable jaw being movably positioned close to or away from the fixed jaw;

[0006] The other end of the wrench head is rotatably mounted on one end of the fixing member via a rotating pin;

[0007] A first connector, one end of which is detachably connected to the other end of the fixing member;

[0008] A second connector, one end of which is detachably connected to the other end of the first connector;

[0009] The sleeve, the other end of the second connector is detachably connected to the sleeve.

[0010] In another preferred embodiment, an adjusting screw is rotatably provided on the wrench head, the adjusting screw being connected to the movable jaw, and the movable jaw being movable toward or away from the fixed jaw via the adjusting screw.

[0011] In another preferred embodiment, the first connector includes: a first part and a second part connected to each other, the fastener being inserted into the first part, the second part being inserted into the second connector, and the radial cross-section of the first part being larger than the radial cross-section of the second part.

[0012] In another preferred embodiment, one end of the first part is provided with a first mounting port, and the other end of the fastener is inserted into the first mounting port.

[0013] In another preferred embodiment, the second connector includes a third part and a fourth part that are interconnected, the second part being inserted into the third part and the fourth part being inserted into the sleeve, wherein the radial cross-section of the third part is larger than the radial cross-section of the fourth part.

[0014] In another preferred embodiment, one end of the third part is provided with a second mounting port, and the second part is inserted into the second mounting port.

[0015] In another preferred embodiment, the sleeve is provided with a third mounting port, and the fourth part is inserted into the third mounting port.

[0016] In another preferred embodiment, it further includes a handle, one end of which is connected to the sleeve.

[0017] Because this utility model adopts the above-mentioned technical solution, it has the following positive effects compared with the prior art:

[0018] By applying this utility model, a rotatable bolt removal and installation tool is provided. The overall length of the wrench can be adjusted by combining connecting parts to suit narrow working environments; the angle between the wrench head and the fixing part can be adjusted by rotating the pin to suit the removal and installation of bolts such as those located in corners; thus improving work efficiency. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of a rotatable bolt removal and installation tool according to the present invention.

[0020] In the attached image:

[0021] 100. Wrench head; 110. Fixed jaw; 120. Movable jaw; 200. Rotary pin; 300. Fixing component; 400. First connecting component; 410. First part; 420. Second part; 500. Second connecting component; 510. Third part; 520. Fourth part; 600. Sleeve; 700. Handle. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. 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] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0025] like Figure 1 The diagram illustrates a preferred embodiment of a rotatable bolt removal and installation tool, comprising: a wrench head 100, one end of which is provided with a fixed jaw 110 and a movable jaw 120, the movable jaw 120 being movably disposed close to or away from the fixed jaw 110; a fixing member 300, the other end of which is rotatably disposed on one end of the fixing member 300 via a rotating pin 200; a first connecting member 400, one end of which is detachably connected to the other end of the fixing member 300; a second connecting member 500, one end of which is detachably connected to the other end of the first connecting member 400; and a sleeve 600, the other end of which is detachably connected to the sleeve 600. Furthermore, the wrench head 100 is used as a fixing component of this rotatable bolt removal and installation tool. The wrench head 100 rotates via the rotating pin 200. The overall length of this rotatable bolt removal and installation tool is adjusted by the combination of the first connector 400 and the second connector 500.

[0026] Furthermore, as a preferred embodiment, the included angle formed between the wrench head 100 and the fixing member 300 is preferably adjustable from 0 to 60°.

[0027] Furthermore, as a preferred embodiment, an adjusting screw is rotatably provided on the wrench head 100. The adjusting screw is connected to the movable jaw 120, which is movable towards or away from the fixed jaw 110 via the adjusting screw.

[0028] Furthermore, as a preferred embodiment, the first connector 400 includes: a first part 410 and a second part 420 that are interconnected, a fastener 300 is inserted into the first part 410, the second part 420 is inserted into the second connector 500, and the radial cross-section of the first part 410 is larger than the radial cross-section of the second part 420.

[0029] Furthermore, in a preferred embodiment, one end of the first portion 410 is provided with a first mounting port, and the other end of the fastener 300 is inserted into the first mounting port. Furthermore, the radial cross-sectional dimension of the fastener 300 is preferably slightly larger than the dimension of the first mounting port; this structural fit makes it less likely for the fastener 300 to fall out after being inserted into the first mounting port.

[0030] Furthermore, as a preferred embodiment, the second connector 500 includes a third part 510 and a fourth part 520 that are interconnected, the second part 420 being inserted into the third part 510 and the fourth part 520 being inserted into the sleeve 600, wherein the radial cross-section of the third part 510 is larger than the radial cross-section of the fourth part 520.

[0031] Furthermore, in a preferred embodiment, one end of the third part 510 is provided with a second mounting port, and the second part 420 is inserted into the second mounting port. Furthermore, the radial cross-sectional dimension of the second part 420 is preferably slightly larger than the dimension of the second mounting port; this structural fit makes it less likely for the second part 420 to fall out after being inserted into the second mounting port.

[0032] Furthermore, in a preferred embodiment, the sleeve 600 is provided with a third mounting port, and the fourth part 520 is inserted into the third mounting port. Furthermore, the radial cross-sectional dimension of the fourth part 520 is preferably slightly larger than the dimension of the third mounting port; this structural fit makes it less likely for the fourth part 520 to fall out after being inserted into the third mounting port.

[0033] Furthermore, as a preferred embodiment, it further includes a handle 700, one end of which is connected to the sleeve 600. Further, the other end of the handle 700 extends outward along the axial or radial direction of the sleeve 600.

[0034] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model.

[0035] Based on the above, this utility model also has the following embodiments:

[0036] Furthermore, as a preferred embodiment, the radial cross-sections described above are preferably rectangular.

[0037] In a further embodiment of this utility model, the first connector 400 and the second connector 500 have the same structure, and their positions can be interchanged. Furthermore, the radial cross-sections of the first portion 410 and the third portion 510 are the same, and the radial cross-sections of the second portion 420 and the fourth portion 520 are the same.

[0038] In a further embodiment of this utility model, the number of connecting members can be increased according to the needs of the working environment, such as connecting a third connecting member after the second connecting member 500, and connecting a fourth connecting member after the third connecting member, etc. Furthermore, the structure of the added connecting members is the same as the structure of the first connecting member 400 and the second connecting member 500 described above, and will not be repeated here.

[0039] The specific operating steps of this utility model's rotatable bolt removal and installation tool are as follows:

[0040] First, the operator inserts the wrench head 100 into the confined working environment, causing the fixed jaw 110 and movable jaw 120 to clamp the bolt to be removed. Next, the operator adjusts the angle between the wrench head 100 and the fixing member 300 to facilitate the subsequent connection of the connecting parts. Then, the operator connects the first connecting part 400 to the fixing member 300, and determines whether the second connecting part 500 needs to be connected based on the working environment. Next, the operator connects the handle 700 to the socket 600 as a whole, and then connects the socket 600 to the first connecting part 400 or the second connecting part 500. Finally, the operator applies force to the wrench head 100 by rotating the handle 700, causing the bolt to be tightened, thereby achieving the bolt removal work.

[0041] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotatable bolt removal and installation tool, characterized in that, include: A wrench head, one end of which is provided with a fixed jaw and a movable jaw, the movable jaw being movably positioned close to or away from the fixed jaw; The other end of the wrench head is rotatably mounted on one end of the fixing member via a rotating pin; A first connector, one end of which is detachably connected to the other end of the fixing member; A second connector, one end of which is detachably connected to the other end of the first connector; The sleeve, the other end of the second connector is detachably connected to the sleeve.

2. The rotatable bolt removal and installation tool according to claim 1, characterized in that, An adjusting screw is rotatably provided on the wrench head. The adjusting screw is connected to the movable jaw, and the movable jaw is movable to move closer to or further away from the fixed jaw via the adjusting screw.

3. The rotatable bolt removal and installation tool according to claim 1, characterized in that, The first connector includes a first part and a second part that are connected to each other. The fastener is inserted into the first part, and the second part is inserted into the second connector. The radial cross-section of the first part is larger than that of the second part.

4. The rotatable bolt removal and installation tool according to claim 3, characterized in that, One end of the first part is provided with a first mounting port, and the other end of the fastener is inserted into the first mounting port.

5. The rotatable bolt removal and installation tool according to claim 3, characterized in that, The second connector includes a third part and a fourth part that are connected to each other, the second part being inserted into the third part, the fourth part being inserted into the sleeve, and the radial cross-section of the third part being larger than that of the fourth part.

6. The rotatable bolt removal and installation tool according to claim 5, characterized in that, One end of the third part is provided with a second mounting port, and the second part is inserted into the second mounting port.

7. The rotatable bolt removal and installation tool according to claim 5, characterized in that, The sleeve is provided with a third mounting port, and the fourth part is inserted into the third mounting port.

8. The rotatable bolt removal and installation tool according to claim 1, characterized in that, Also includes: A handle, one end of which is connected to the sleeve.