Slipping bolt dismounting tool

Abstract

The utility model relates to a loose screw bolt dismounting tool which comprises a tail end part, the tail end part is provided with a tail end cavity matched with a bolt, a plurality of set screws are arranged on the outer surface of the tail end part in a penetrating mode, and the set screws can be fed into the tail end cavity to clamp the head of the bolt or retreat from the tail end cavity to loosen the head of the bolt. After the head of the bolt is clamped in a matched mode through the set screw, rotation can be achieved and outward pulling force can be exerted on the bolt at the same time when the slipped bolt is disassembled, and it is guaranteed that the slipped bolt is disassembled rapidly and conveniently.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology, specifically relating to a tooling for disassembling stripped bolts. Background Technology

[0002] Taking lead-acid batteries as an example, when bolting the positive and negative copper terminals of lead-acid batteries, the threaded holes of the battery terminals and the connecting bolts often become stripped and fail. The following problems are often encountered when disassembling stripped bolts:

[0003] 1. Stripped bolts are extremely inconvenient to remove, time-consuming and laborious. It requires repeatedly turning the bolt and simultaneously applying an outward pulling force to remove it. There is a lack of suitable tooling for turning the bolt and applying an outward pulling force at the same time during disassembly.

[0004] 2. In scenarios where the operating space is limited, such as when the gap between the two sides of the stripped bolt head is small and the operating space is limited, the structure that clamps the bolt cannot exceed the outer contour of the tooling. Therefore, special tooling needs to be made to complete the disassembly of the stripped bolt. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this utility model proposes a stripped bolt disassembly tool that is simple to operate, has high disassembly efficiency, and is widely applicable, especially suitable for confined space scenarios.

[0006] The technical solution adopted in this utility model is:

[0007] A tooling for removing stripped threaded bolts includes an end portion with a cavity adapted to the bolt. A plurality of set screws are inserted through the outer surface of the end portion. These set screws can be fed into the cavity to clamp the bolt head or withdrawn from the cavity to loosen the bolt head. This invention, by using set screws to clamp the bolt head, allows for both rotation and simultaneous outward tension on the bolt during removal of the stripped threaded bolt, ensuring quick and convenient removal.

[0008] Furthermore, the closed end of the distal portion is provided with a connecting part, and the end of the connecting part is provided with a handle. This invention allows for the disassembly of stripped bolts by applying force through the handle.

[0009] Furthermore, the handheld part and the connecting part are connected to form a T-shaped structure, which facilitates the application of force.

[0010] Furthermore, the length of the connecting part is between 150mm and 200mm, and the length of the handheld part is between 80mm and 100mm.

[0011] Alternatively, the closed end of the distal portion may be provided with a connecting part, and the end of the connecting part may be provided with a power tool connector. This invention enables electrically applied disassembly by connecting to a power tool via the power tool connector.

[0012] Furthermore, the length of the connecting part is between 15mm and 20mm, and the length of the power tool connector is between 25mm and 35mm.

[0013] Furthermore, the end cavity is hexagonal or circular to accommodate external hexagonal bolts and cylindrical head internal hexagonal screws.

[0014] Furthermore, the set screw is a concave-end fastening screw to ensure the clamping force of the clamping bolt head.

[0015] Furthermore, the length of the set screw is between 3mm and 5mm.

[0016] Furthermore, the stripped bolt disassembly tool is made of chromium vanadium steel with a hardness range of HRC50 to HRC55, and its surface is plated with a nickel layer to ensure wear resistance, corrosion resistance and service life.

[0017] The advantages of this utility model are: simple operation, high disassembly efficiency, wide applicability, especially suitable for confined space scenarios, and can be used for disassembling stripped bolts and stripped nuts. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the first embodiment of this utility model.

[0019] Figure 2 yes Figure 1 A sectional view.

[0020] Figure 3 This is a schematic diagram of the structure of the second embodiment of this utility model.

[0021] Figure 4 This is a schematic diagram illustrating the applicable scenarios of this utility model.

[0022] In the diagram: 1. End part; 2. End cavity; 3. Set screw; 4. Connecting part; 5. Handheld part; 6. Power tool connector; 7. Battery bolt; 8. Bolt; 9. Spring washer; 10. Flat washer. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments, but the present invention is not limited to these specific embodiments. Those skilled in the art should recognize that the present invention covers all alternatives, improvements and equivalents that may be included within the scope of the claims.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, 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 simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] Example 1

[0028] See Figure 1 , Figure 2This embodiment provides a tooling for disassembling stripped bolts, including an end portion 1. The end portion 1 has an end cavity 2 adapted to the bolt. A plurality of set screws 3 are inserted through the outer surface of the end portion 1. The set screws 3 can be fed into the end cavity 2 to clamp the bolt head or withdrawn from the end cavity 2 to loosen the bolt head. This invention, by using the set screws 3 to clamp the bolt head, allows for both rotation and simultaneous outward pulling force on the bolt during disassembly of the stripped bolt, ensuring quick and convenient removal of the stripped bolt.

[0029] In this embodiment, the closed end of the end portion 1 is provided with a connecting portion 4, and the end of the connecting portion 4 is provided with a handle portion 5. This utility model allows for the disassembly of stripped bolts by applying force through the handle portion 5. The handle portion 5 and the connecting portion 4 are connected to form a T-shaped structure, facilitating the application of force. The length of the connecting portion 4 ranges from 150mm to 200mm, and the length of the handle portion 5 ranges from 80mm to 100mm. The end cavity 2 is hexagonal or circular to accommodate external hexagonal bolts and cylindrical head socket head cap screws.

[0030] The end cavity 2 described in this embodiment can be designed according to the corresponding bolt size to ensure that the bottom surface of the end part is flush with the bottom surface of the flat washer 10 of the bolt 8, so that the bolt head, flat washer 10 and spring washer 9 can all enter the end cavity 2.

[0031] In this embodiment, the set screw 3 is a concave-end fastening screw to ensure the clamping force of the bolt head. The length of the set screw 3 is between 3mm and 5mm, and the length of the exposed end 1 after tightening is preferably between 0.5mm and 1mm. In this embodiment, two, three, or four symmetrically arranged set screws 3 can be used.

[0032] The stripped bolt disassembly tool described in this embodiment is made of chromium vanadium steel with a hardness range of HRC50 to HRC55. Its surface is plated with a nickel layer to ensure wear resistance, corrosion resistance and service life.

[0033] This utility model is used for disassembling stripped bolts in the grooves of bent copper busbars. (See also...) Figure 4 When the end part 1 of the stripped thread bolt removal tool is placed on the battery bolt 7, and the set screws 3 of the end part 1 are all fed into the end cavity 2, the bolt head can be clamped. When removing the stripped thread bolt, it can be rotated and an outward pulling force can be applied to the bolt at the same time, ensuring quick and convenient removal of the stripped thread bolt. After the stripped thread bolt is removed, the bolt head can be loosened by pulling the set screws 3 of the end part 1 outward. The bolt can then be removed.

[0034] This invention is simple to operate, has high disassembly efficiency, and is widely applicable, especially suitable for confined space scenarios. It can also be used for disassembling stripped bolts and stripped nuts.

[0035] Example 2

[0036] See Figure 3 The difference between this embodiment and Embodiment 1 is that the closed end of the end portion 1 is provided with a connecting portion 5, and the end of the connecting portion 5 is provided with a power tool connector 6. This utility model achieves electric disassembly by connecting to a power tool via the power tool connector 6, thus saving more effort.

[0037] In this embodiment, the length of the connecting part 5 is between 15mm and 20mm, and the length of the power tool connector 6 is between 25mm and 35mm.

[0038] The remaining structure and functions are the same as in Embodiment 1.

Claims

1. A stripped bolt dismounting tool comprising a tip portion provided with a tip cavity adapted to a bolt, characterized in that: The outer surface of the end part is provided with several sets of studs which can feed the bolt head into or out of the end cavity.

2. The stripped bolt dismounting tool according to claim 1, characterized in that: The unopened end of the end part is provided with a connecting part, and the end of the connecting part is provided with a hand-held part.

3. The stripped bolt dismounting tool according to claim 2, characterized in that: The hand-held part and the connecting part are connected to form a T-shaped structure.

4. The stripped bolt disassembly tool of claim 2, wherein: The length of the connecting part ranges from 150mm to 200mm, and the length of the hand-held part ranges from 80mm to 100mm.

5. The stripped bolt disassembly tool of claim 1, wherein: The unopened end of the end part is provided with a connecting part, and the end of the connecting part is provided with an electric tool connector.

6. The stripped bolt disassembly tool of claim 5, wherein: The length of the connecting part ranges from 15mm to 20mm, and the length of the electric tool connector ranges from 25mm to 35mm.

7. The stripped bolt disassembly tool of claim 1, wherein: The end cavity is a regular hexagon or a circle.

8. The stripped bolt disassembly tool of claim 1, wherein: The studs are concave end studs.

9. The stripped bolt disassembly tool of claim 8, wherein: The length of the studs ranges from 3mm to 5mm.

10. The stripped bolt disassembly tool of claim 1, wherein: The slide bolt dismounting tool is made of chromium vanadium steel with a hardness ranging from HRC50 to HRC55, and a nickel plating layer is provided on the surface.

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