Bolt dismounting tool

Abstract

The utility model provides a kind of bolt dismounting tool, including sleeve and handle, the handle includes fixed part and gripping portion, the fixed part with the sleeve detachable assembly fixed, and adjustable fixed angle;The sleeve includes sleeved connecting sleeve and operation sleeve, the connecting sleeve with the handle assembly fixed;The operation sleeve has the matching clamping portion with the bolt head to be installed / dismounted, according to the structure of bolt head to be dismounted, replace the matching operation sleeve.The utility model provides a kind of bolt dismounting tool, can satisfy the angle adjustment of handle and the adaptation problem with bolt head, to improve the applicable scope of tool, improve the stability and reliability of operation.

Description

Technical Field

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

[0002] During the assembly and production of rail vehicles, a large number of fasteners such as bolts are used, especially for the assembly and fixing of roof equipment and roof panels. Bolt disassembly and assembly tools are one of the commonly used tools during the installation and disassembly of roof equipment.

[0003] Traditional bolt removal and installation wrenches often present operational difficulties when faced with challenging working spaces or angles. For example, ordinary socket wrenches are difficult to apply force in confined spaces such as rooftop equipment mounting brackets, or they cannot flexibly handle operations requiring specific angles. Furthermore, some wrenches exhibit poor compatibility with the workpiece, impacting work efficiency and effectiveness. To address these practical problems, a new bolt removal and installation fixture needs to be developed. Utility Model Content

[0004] To address the technical problems in the prior art, this utility model provides a bolt assembly and disassembly fixture that can meet the requirements of handle angle adjustment and bolt head compatibility, thereby improving the applicability of the fixture and enhancing operational stability and reliability.

[0005] To solve the above-mentioned technical problems, this utility model provides a bolt disassembly and assembly tooling, which adopts the following technical solution:

[0006] A bolt assembly / disassembly tool includes a sleeve and a handle. The handle includes a fixing part and a gripping part. The fixing part is detachably assembled and fixed to the sleeve, and the fixing angle can be adjusted.

[0007] The sleeve includes a connecting sleeve and a working sleeve, the connecting sleeve being assembled and fixed to the handle; the working sleeve has a snap-fit ​​portion that matches the bolt head to be installed / removed, and the matching working sleeve is replaced according to the structure of the bolt head to be installed or removed.

[0008] Furthermore, the fixing part and the sleeve are connected by a ball joint assembly.

[0009] Furthermore, the handle also includes a connecting portion, and the fixing portion and the gripping portion are respectively fixed perpendicularly to both ends of the connecting portion and extend in opposite directions.

[0010] Furthermore, the fixing angle between the fixing part and the sleeve, and / or between the fixing part and the connecting part, and / or between the connecting part and the gripping part is adjustable.

[0011] Furthermore, the handle is provided with a limiting structure that can limit the fixed angle between the fixing part and the sleeve, and / or between the fixing part and the connecting part, and / or between the connecting part and the gripping part.

[0012] Furthermore, a bolt hole is provided on the side wall of the connecting sleeve at a position opposite to the handle, and the end of the fastening bolt passes through the bolt hole and abuts against the side wall of the working sleeve.

[0013] Furthermore, an anti-rotation structure is provided between the connecting sleeve and the working sleeve.

[0014] Furthermore, the connecting sleeve is provided with a snap-fit ​​groove, and the working sleeve is embedded in the snap-fit ​​groove.

[0015] Furthermore, a through hole is provided on the bottom of the snap-fit ​​groove.

[0016] Furthermore, an arc-shaped clearance area is provided at the corner of the working sleeve.

[0017] In summary, the bolt assembly and disassembly fixture provided by this utility model has the following advantages compared with the prior art:

[0018] Improved ease of operation: The tooling structure design takes into account the space and angle issues in actual operation, making it easier to operate even in confined spaces or at special angles, thus reducing the difficulty of operation;

[0019] Enhanced adaptability: By optimizing the structure of the contact part between the tooling and the workpiece, it can better adapt to workpieces of different specifications and shapes, thereby improving the stability and reliability of operation.

[0020] Good structural stability: The overall structural design is reasonable, which can maintain good stability during use and reduce operational errors caused by structural instability.

[0021] Widely applicable: Suitable for a variety of different work scenarios, whether it is mechanical assembly, equipment maintenance or other related fields, it can play a good role.

[0022] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0023] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0024] In the attached diagram:

[0025] Figure 1 This is a schematic diagram of a first embodiment of the bolt disassembly and assembly tool of this utility model;

[0026] Figure 2 This is a front view of the structure of an embodiment of the bolt disassembly and assembly tool of this utility model;

[0027] Figure 3 This is a side sectional view of a first embodiment of a bolt disassembly and assembly tool of this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of a second embodiment of the bolt disassembly and assembly tool of this utility model;

[0029] Figure 5 This is a front view of the structure of a second embodiment of the bolt disassembly and assembly tool of this utility model;

[0030] Figure 6 This is a side sectional view of the structure of a second embodiment of the bolt disassembly and assembly tool of this utility model;

[0031] In the picture:

[0032] 1. Handle; 11. Grip part; 12. Fixing part; 13. Connecting part; 2. Sleeve; 21. Connecting sleeve; 22. Working sleeve; 23. Bolt hole; 24. Snap-fit ​​groove; 241. Through hole; 25. Clearance area.

[0033] It should be noted that the accompanying drawings and text description are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0035] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] This utility model provides a bolt assembly and disassembly tool, including a sleeve 2 and a handle 1. The handle 1 includes a fixing part 12 and a gripping part 11. The fixing part 12 and the sleeve 2 are detachably assembled and fixed, and the fixing angle can be adjusted.

[0038] The sleeve 2 includes a connecting sleeve 21 and a working sleeve 22, which are fitted together. The connecting sleeve 21 is assembled and fixed to the handle 1. The working sleeve 22 has a snap-fit ​​part that matches the bolt head to be installed / removed. The working sleeve 22 is replaced according to the structure of the bolt head to be installed or removed.

[0039] This embodiment provides a bolt assembly / disassembly tool, including a handle 1 and a sleeve 2. The sleeve 2 is used to engage with the bolt head to be assembled or disassembled, so as to tighten or remove the bolt.

[0040] like Figures 1 to 6 As shown, the sleeve 2 includes a connecting sleeve 21 and a working sleeve 22. A snap-fit ​​groove 24 is provided in the middle of the connecting sleeve 21. The working sleeve 22 is embedded into the snap-fit ​​groove 24, thus connecting the working sleeve 22 and the connecting sleeve 21. The snap-fit ​​groove 24 can be a through groove, with the working sleeve 22 having the same external dimensions as the snap-fit ​​groove 24. Alternatively, it can be embedded into the snap-fit ​​groove 24 using an interference fit to prevent the working sleeve 22 from detaching from the snap-fit ​​groove 24 during operation or tooling transfer. An anti-detachment structure can also be provided between the snap-fit ​​groove 24 and the working sleeve 22. Any structure that can achieve anti-detachment is applicable, without requirements or limitations.

[0041] In this embodiment, the snap-fit ​​groove 24 is provided with a groove bottom, and a through hole 241 is provided at the center of the groove bottom to avoid the process protrusion on the top of the bolt, and also to facilitate the installation of the working sleeve 22, so as to avoid the air at the bottom of the groove forming an installation obstacle during interference fit.

[0042] Preferably, an anti-rotation structure is provided between the connecting sleeve 21 and the working sleeve 22 to prevent relative rotation between the connecting sleeve 21 and the working sleeve 22 during operation, which would affect the installation and removal of the bolts.

[0043] The cross-section of the snap-fit ​​groove 24 is not circular, but rectangular. By setting a corner structure, rotation prevention between the connecting sleeve 21 and the working sleeve 22 is achieved. Furthermore, in this embodiment, two opposite sides of the rectangle are rounded, and the other two opposite sides are connected by an arc. By changing the straight and arc segments, rotation prevention between the connecting sleeve 21 and the working sleeve 22 is achieved, while also providing assembly guidance. In practical applications, other anti-rotation structures can be set between the connecting sleeve 21 and the working sleeve 22, such as a through hole with an anti-rotation pin inside, to achieve rotation prevention. No requirements or limitations are imposed, and the foregoing should not be considered a limitation of this application.

[0044] A bolt hole 23 is provided on the side wall of the connecting sleeve 21. The end of the fastening bolt passes through the bolt hole 23 and abuts against the side wall of the working sleeve 22, fixing the working sleeve 22 in the snap-fit ​​groove 24 by compression. Furthermore, a bolt hole 23 is also provided at the corresponding position of the working sleeve 22. The fastening bolt passes through the connecting sleeve 21 and then enters the bolt hole 23 of the working sleeve 22, fixing the connecting sleeve 21 and the working sleeve 22 together with bolts, so that the bolt hole 23 and the fastening bolt simultaneously serve the functions of preventing loosening and preventing rotation.

[0045] The working sleeve 22 has a snap-fit ​​part at its center that matches the bolt to be disassembled or assembled. For example, the cross-sectional shape of the snap-fit ​​part matches the bolt head of the device to be disassembled, such as an internal hexagonal socket and the diameter of the internal hexagonal socket. Preferably, an arc-shaped relief area 25 is provided at the corner of the snap-fit ​​part to accommodate irregular bolt heads.

[0046] A handle 1 is assembled and fixed on the opposite side of the bolt hole 23. The handle 1 includes a gripping part 11 and a fixing part 12. The fixing part 12 is assembled and fixed to the connecting sleeve 21. The gripping part 11 is used to grip and apply force, thereby pushing the sleeve 2 to rotate, so as to realize the installation or removal of the bolt.

[0047] Apply anti-slip treatment to the handle 1, such as attaching anti-slip felt to the grip area, or performing knurling treatment on the entire handle 1 or only on the grip area 11 to increase the roughness of the handle 1 and achieve anti-slip properties.

[0048] The handle 1 and the connecting sleeve 21 can be fixed by welding or by thread. The fixing point of the handle 1 and the connecting sleeve 21 is opposite to the position of the bolt hole 23. The axis of the bolt hole 23 is located on the extension line of the axis of the handle 1. The working sleeve 22 is clamped and tightened from both sides.

[0049] In this embodiment, the fixing angle between the fixing part 12 and the connecting sleeve 21 is adjustable to adapt to the needs of different positions and installation spaces. The fixing angle between the fixing part 12 and the connecting sleeve 21 is selected according to the space requirements of the installation position to improve the applicability of the tooling. Preferably, the fixing part 12 can be assembled and connected to the connecting sleeve 21 via a ball joint, achieving stepless adjustment of the relative angle. A limiting structure can be set to limit the relative angle between the fixing part 12 and the connecting sleeve 21, preventing relative movement during assembly and disassembly and increasing the difficulty of assembly and disassembly. In practical applications, any connection method can be used as long as the fixing angle is adjustable; no requirements or limitations are imposed.

[0050] In this embodiment, the structure of handle 1 includes the following three embodiments:

[0051] Example 1

[0052] like Figures 1 to 3 As shown, the handle 1 is a straight rod, with one end being a fixing part 12, which is directly welded to the connecting sleeve 21, bolted to it, or fixed to the connecting sleeve 21 in an angle-adjustable manner as described above. The other end is a gripping part 11, used for applying force.

[0053] Example 2

[0054] like Figures 4 to 6 As shown, the handle 1 is a bent structure, including a fixed part 12, a connecting part 13 and a gripping part 11 that are connected to each other. Similarly, the fixed part 12 can be fixed to the connecting sleeve 21 by welding, bolting or angle adjustment, and the gripping part 11 is used to apply force.

[0055] In this embodiment, the fixing part 12, the connecting part 13 and the gripping part 11 are fixed to each other in a "Z" shape. The fixing part 12 and the gripping part 11 are respectively fixed perpendicularly to the two ends of the connecting part 13 and extend in opposite directions. The fixing part 12 and the connecting part 13, and the connecting part 13 and the gripping part are connected at right angles.

[0056] The fixing part 12, the connecting part 13 and the gripping part 11 can be made of telescopic rods to adjust the relative distance between the fixing point of the fixing part 12 and the connecting sleeve 21 and the force application point of the gripping part 11.

[0057] Example 3

[0058] The specific structure is the same as in Embodiment 2, except that the fixing angle between the fixing part 12 and the connecting part 13, and / or the fixing angle between the connecting part 13 and the gripping part 11, is adjustable. That is, at least one of the two connection points of the handle 1 has an adjustable fixing angle.

[0059] In conjunction with the adjustable fixing angle of the fixing part 12 and the connecting sleeve 21 described above, in this embodiment, the fixing angles between the fixing part 12 and the sleeve 2, and / or between the fixing part 12 and the connecting part 13, and / or between the connecting part 13 and the gripping part 11 are adjustable. By adjusting the angles of multiple connection points, the relative angles between the fixing points and the force application points of the entire tooling can be adjusted to adapt to various complex assembly and disassembly conditions. Limiting structures are provided at each adjustable fixing angle connection point between the fixing part 12 and the sleeve 2, and / or between the fixing part 12 and the connecting part 13, and / or between the connecting part 13 and the gripping part 11, to limit and fix the adjusted angle after adjustment, preventing changes in angle during operation.

[0060] The above are three embodiments of the handle 1 provided by this utility model. In practical applications, each connecting sleeve 21 can be configured with multiple working sleeves 22 corresponding to bolt heads of different specifications. According to the structure and size of the bolt head to be disassembled, the appropriate working sleeve 22 is selected, and the working sleeve 22 is assembled with the connecting sleeve 21 and fastened, prevented from falling off, and prevented from rotating by fixing bolts.

[0061] It can be configured with three types of handles 1 provided in Embodiment 1 and Embodiment 2, so that handle 1 and connecting sleeve 21 can be detachably assembled and fixed. According to the specific location of the bolt to be disassembled and assembled, the surrounding structural characteristics, and the construction space, the appropriate handle 1 can be selected, and the fixing angle of each connection point of handle 1, connecting sleeve 21, and handle 1 can be adjusted to adapt to various disassembly and assembly conditions, apply force to the bolt, and realize the bolt disassembly and assembly operation.

[0062] In summary, the bolt assembly and disassembly fixture provided by this utility model has the following advantages compared with the prior art:

[0063] Improved ease of operation: The tooling structure design takes into account the space and angle issues in actual operation, making it easier to operate even in confined spaces or at special angles, thus reducing the difficulty of operation;

[0064] Enhanced adaptability: By optimizing the structure of the contact part between the tooling and the workpiece, it can better adapt to workpieces of different specifications and shapes, thereby improving the stability and reliability of operation.

[0065] Good structural stability: The overall structural design is reasonable, which can maintain good stability during use and reduce operational errors caused by structural instability.

[0066] Widely applicable: Suitable for a variety of different work scenarios, whether it is mechanical assembly, equipment maintenance or other related fields, it can play a good role.

[0067] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A bolt disassembly and assembly tool, characterized in that: The device includes a sleeve and a handle. The handle includes a fixing part and a gripping part. The fixing part is detachably assembled and fixed to the sleeve, and the fixing angle can be adjusted. The sleeve includes a connecting sleeve and a working sleeve that are fitted together. The connecting sleeve is assembled and fixed to the handle. The working sleeve has a snap-fit ​​part that matches the head of the bolt to be installed / removed. The working sleeve is replaced according to the structure of the bolt head to be installed or removed.

2. The bolt disassembly and assembly fixture as described in claim 1, characterized in that: The fixing part and the sleeve are connected by a ball joint assembly.

3. The bolt disassembly and assembly fixture as described in claim 1, characterized in that: The handle also includes a connecting portion, and the fixing portion and the grip portion are respectively fixed perpendicularly to both ends of the connecting portion and extend in opposite directions.

4. The bolt disassembly and assembly fixture as described in claim 3, characterized in that: The fixing angle between the fixing part and the sleeve, and / or between the fixing part and the connecting part, and / or between the connecting part and the gripping part is adjustable.

5. The bolt disassembly and assembly fixture as described in claim 4, characterized in that: The handle is provided with a limiting structure that can limit the fixed angle between the fixing part and the sleeve, and / or between the fixing part and the connecting part, and / or between the connecting part and the gripping part.

6. A bolt disassembly and assembly tool as described in any one of claims 1 to 5, characterized in that: A bolt hole is provided on the side wall of the connecting sleeve at a position opposite to the handle. The end of the fastening bolt passes through the bolt hole and abuts against the side wall of the working sleeve.

7. A bolt disassembly and assembly fixture as described in any one of claims 1 to 5, characterized in that: An anti-rotation structure is provided between the connecting sleeve and the working sleeve.

8. A bolt disassembly and assembly tool as described in any one of claims 1 to 5, characterized in that: The connecting sleeve is provided with a snap-fit ​​groove, and the working sleeve is embedded in the snap-fit ​​groove.

9. A bolt disassembly and assembly tool as described in claim 8, characterized in that: A through hole is provided on the bottom of the snap-fit ​​groove.

10. A bolt disassembly and assembly tool as described in any one of claims 1 to 5, characterized in that: An arc-shaped clearance area is provided at the corner of the working surface of the working sleeve.

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