Automobile fastener convenient to disassemble

By designing finger grooves and extended shank structures on the nut surface, combined with rubber gaskets and limiting shafts, the problem of inconvenient tool-free operation of automotive fasteners is solved, achieving convenient and labor-saving disassembly.

CN223536732UActive Publication Date: 2025-11-11JIANGSU BENHE PRECISION TECH CO LTD
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Patent Information

Application Number
CN202520002804.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2025-11-11
Estimated Expiration
2035-01-02

AI Technical Summary

Technical Problem

Existing automotive fasteners are inconvenient to operate without tools and pose a risk of slippage, affecting efficiency and safety.

Method used

The nut surface is designed with finger grooves and an extension handle structure, combined with rubber gaskets and a limiting shaft, allowing fingers to directly screw and the extension handle to drive the nut to rotate, which is labor-saving and stable.

Benefits of technology

It enables convenient and labor-saving nut removal without tools, improving operational efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile fastening nuts, in particular to an automobile fastening piece convenient to disassemble, which comprises a nut, an extending threaded sleeve is integrally formed at one end of the nut, two finger grooves are formed in the surface of the nut, a first notch is formed in the surface of each finger groove, and an extending handle is rotatably connected in each first notch; the automobile fastener convenient to disassemble has the advantages that the finger grooves are formed in the surface of the nut, a user can easily put fingers into the finger grooves, and tool-free screwing is achieved. Therefore, the operation process is simplified, and the operation efficiency is improved. And due to the design of the extension handle, when a user needs to perform labor-saving screwing, the extension handle can be shifted to extend out of the notch, and the nut is driven to rotate through the extension handle. Compared with the mode of directly pinching in a finger groove for screwing, the mode is more labor-saving and efficient.
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Description

Technical Field

[0001] This utility model relates to the field of automotive fastening nuts, specifically an automotive fastener that is easy to disassemble. Background Technology

[0002] Fasteners are widely used in the automotive manufacturing and repair industry, serving to connect and secure various automotive components. Traditional automotive fasteners typically consist only of nuts and bolts, requiring tools such as wrenches or screwdrivers for installation and removal. However, in certain situations, such as emergency repairs or when tools are not readily available, using tools can become impractical. Therefore, there is a pressing need in the market for automotive fasteners that can be easily installed and removed without tools.

[0003] While some existing toolless fastener designs have addressed this issue to some extent, they often suffer from problems such as inconvenient operation, uncomfortable grip, and easy slippage during tightening. These issues not only affect the efficiency of fastener use but may also pose a threat to user safety. Utility Model Content

[0004] The purpose of this invention is to provide an easy-to-disassemble automotive fastener to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-disassemble automotive fastener, including a nut, one end of which is integrally formed with an extended threaded sleeve, and the surface of the nut has two finger grooves, the surface of which has a notch, and the interior of the notch is rotatably connected to an extended handle.

[0006] Preferably, the finger groove is U-shaped, with two finger grooves symmetrically distributed about the nut. A rubber gasket is fixed inside the finger groove, and a second notch is formed on the surface of the rubber gasket, corresponding to the first notch. Preferably, one end of the rubber gasket has an integrally formed rubber connecting piece, one side of which is fixed to the surface of the nut. The other side of the rubber connecting piece has an integrally formed rubber traction piece, the inner ring surface of which is fixed to the surface of the extension sleeve. The portion of the inner ring surface of the rubber traction piece that protrudes from the extension sleeve is integrally formed on the outer ring surface of the rubber washer ring, which is fixed to the end of the extension sleeve away from the nut.

[0007] Preferably, a limiting shaft is fixed between the two parallel sidewalls of the notch, and the limiting shaft passes through a through hole, which is opened on the surface of the extension handle.

[0008] Preferably, the end of the extension handle away from the limiting shaft is provided with a grabbing groove, which is in the form of a "U" shaped groove.

[0009] Preferably, rubber protrusions are fixed on both parallel sidewalls of the notch, and when the extension handle is placed flat inside the notch, the rubber protrusions extend into the notch.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention presents an easy-to-disassemble automotive fastener. By creating finger grooves on the nut surface, users can easily insert their fingers for tool-free tightening. This not only simplifies the operation process but also improves efficiency. The extended handle design allows users to extend the handle from the notch when effortless tightening is required, using the extended handle to rotate the nut. This method is more effortless and efficient than directly pinching the nut in the finger groove for tightening. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the connection structure between the extension threaded sleeve and the rubber gasket of this utility model;

[0014] Figure 3 This is a front view of the structure of this utility model;

[0015] Figure 4 for Figure 3 Sectional view of the structure at point AA;

[0016] Figure 5 This is a schematic diagram of the rubber gasket, rubber connecting piece, rubber traction piece, and rubber pad connection structure of this utility model.

[0017] Figure 6 This is a schematic diagram of the structure of the present invention after the extension handle has been extended;

[0018] Figure 7 This is a schematic diagram of the connection structure between the nut and the extension sleeve of this utility model.

[0019] In the diagram: 1. Nut; 2. Extension sleeve; 3. Finger groove; 4. Rubber washer; 5. Rubber connecting piece; 6. Rubber traction plate.

[0020] 6. Rubber gasket ring 7. Groove 1 8. Groove 2 9. Limiting shaft 10. Perforation 11. Extension handle 12. Grip groove 13. Rubber protrusion 14. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit 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.

[0022] Please see Figures 1-7 This utility model provides a technical solution: an easy-to-disassemble automotive fastener, including a nut 1, one end of which is integrally formed with an extension sleeve 2. Two finger grooves 3 are formed on the surface of the nut 1, and a notch 8 is formed on the surface of the finger grooves 3. An extension handle 12 is rotatably connected inside the notch 8. The finger grooves 3 are U-shaped grooves, and the two finger grooves 3 are symmetrically distributed about the nut 1. A rubber gasket 4 is fixed inside the finger grooves 3, and a notch 9 is formed on the surface of the rubber gasket 4, corresponding to the notch 8. When using the nut 1, without tools, the index finger and thumb are respectively pinched in the two finger grooves 3, and the nut 1 can be turned. The rubber pad 4 increases the friction between the fingers and the finger grooves 3 and prevents the finger grooves 3 from getting stuck on the hand. When it is necessary to turn the nut 1 with less effort, the extension handle 12 is pushed out from the notch 8. The two fingers are pushed in the same direction to drive the nut 1 to rotate. Compared with the fingers pinching in the finger grooves 3, it is more effortless to push the nut 1 with the extension handle 12, so as to turn the nut 1 by hand, which is convenient for installing and removing the nut 1.

[0023] One end of the rubber gasket 4 is integrally formed with a rubber connecting piece 5. One side of the rubber connecting piece 5 is fixed to the surface of the nut 1, and the other side of the rubber connecting piece 5 is integrally formed with a rubber traction piece 6. The inner ring surface of the rubber traction piece 6 is fixed to the surface of the extension sleeve 2, and the part of the inner ring surface of the rubber traction piece 6 that protrudes from the extension sleeve 2 is integrally formed on the outer ring surface of the rubber washer ring 7. The rubber washer ring 7 is fixed to the end of the extension sleeve 2 away from the nut 1. In use, after the rubber washer ring 7 is installed at the end of the extension sleeve 2, when the nut 1 and the extension sleeve 2 are tightened, the rubber washer ring 7 is clamped between the extension sleeve 2 and the automotive workpiece, and acts as an elastic gasket. The rubber gasket 4, the rubber connecting piece 5, the rubber traction piece 6, and the rubber washer ring 7 are integrally formed.

[0024] A limiting shaft 10 is fixed between the two parallel sidewalls of notch 8. The limiting shaft 10 passes through a through hole 11, which is located on the surface of the extension handle 12. A retaining groove 13 is provided at the end of the extension handle 12 away from the limiting shaft 10. The retaining groove 13 is U-shaped. Rubber protrusions 14 are fixed on both parallel sidewalls of notch 8. When the extension handle 12 is placed flat inside notch 8, the rubber protrusions 14 extend into the retaining groove 13. In use, after the extension handle 12 extends out of notch 8, it fills the extension arm of the screw nut 1. When the extension handle 12 retracts into notch 8, the rubber protrusions 14 extend into the retaining groove 13, preventing the extension handle 12 from swinging freely in notch 8.

[0025] The detailed usage process is as follows:

[0026] Place your index finger and thumb into the two finger grooves 3 respectively, ensuring your fingers fit comfortably on the rubber pads 4. Use your fingers to tighten the nut 1 through the finger grooves 3. The rubber pads 4 increase the friction between your fingers and the finger grooves 3, preventing your fingers from slipping and avoiding any pressure from the finger grooves 3.

[0027] When using the extension handle 12 for tightening, the extension handle extends: use your fingers to push the extension handle 12 out of the notch 8. Ensure that both extension handles 12 extend simultaneously and in the same direction. Place two fingers on the two extension handles 12 respectively, ready to tighten. Use the force of your fingers to tighten the nut 1 through the extension handles 12. The extension handle 12 acts as an extension lever arm for tightening, making the tightening process easier. Extension handle retraction: after tightening, push the extension handle 12 inward to retract it into the notch 8. Ensure that the rubber protrusion 14 is inserted into the retaining groove 13 to prevent the extension handle 12 from swinging freely in the notch 8.

[0028] After tightening nut 1 and extension sleeve 2, rubber washer 7 will be clamped between extension sleeve 2 and the automotive workpiece, acting as an elastic washer. If rubber washer 7 is found to be damaged or ineffective, it should be replaced promptly.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An easily removable automotive fastener, comprising a nut (1), characterized in that: One end of the nut (1) is integrally formed with an extension sleeve (2), and the surface of the nut (1) has two finger grooves (3), and the surface of the finger grooves (3) has a notch (8), and the inside of the notch (8) is rotatably connected to an extension shank (12).

2. The easily disassembled automotive fastener according to claim 1, characterized in that: The finger groove (3) is a "U" shaped groove. The two finger grooves (3) are symmetrically distributed about the nut (1). A rubber gasket (4) is fixed inside the finger groove (3). The surface of the rubber gasket (4) is provided with a second notch (9), which corresponds to the first notch (8).

3. The easily disassembled automotive fastener according to claim 2, characterized in that: One end of the rubber gasket (4) is integrally formed with a rubber connecting piece (5). One side of the rubber connecting piece (5) is fixed to the surface of the nut (1). The other side of the rubber connecting piece (5) is integrally formed with a rubber traction piece (6). The inner ring surface of the rubber traction piece (6) is fixed to the surface of the extension sleeve (2). The part of the inner ring surface of the rubber traction piece (6) that protrudes from the extension sleeve (2) is integrally formed on the outer ring surface of the rubber washer ring (7). The rubber washer ring (7) is fixed to the end of the extension sleeve (2) away from the nut (1).

4. The easily disassembled automotive fastener according to claim 1, characterized in that: A limiting shaft (10) is fixed between the two parallel sidewalls of the notch (8), and the limiting shaft (10) passes through the through hole (11), which is located on the surface of the extension handle (12).

5. The easily disassembled automotive fastener according to claim 4, characterized in that: The extension handle (12) has a cleaving groove (13) at one end away from the limiting shaft (10), and the cleaving groove (13) is in the shape of a "U".

6. The easily disassembled automotive fastener according to claim 5, characterized in that: Rubber protrusions (14) are fixed on the two parallel sidewalls of the notch (8). When the extension handle (12) is placed flat inside the notch (8), the rubber protrusions (14) extend into the notch (13).