Two-wheeled vehicle adjusting nut with anti-loosening function

Abstract

The utility model belongs to the technical field of mechanical parts, and particularly relates to a two-wheeled vehicle adjusting nut with an anti-loosening function, which comprises a screw rod, a main nut and an anti-loosening nut, the main nut is in threaded connection with the screw rod, one end of the main nut is fixedly connected with a circular truncated cone-shaped extension cylinder, and the other end of the main nut is fixedly connected with the anti-loosening nut. The inner wall of the extension cylinder is provided with an internal thread connected with the main nut, and the outer wall of the extension cylinder is provided with an external thread along the curved surface. According to the two-wheeled vehicle adjusting nut with the anti-loosening function, after the main nut is screwed down, the anti-loosening nut is rotated to be in threaded connection with the outer wall of the extending cylinder, so that the main nut is subjected to force in the axial direction of the anti-loosening nut, and then the probability that the main nut is loosened due to vibration is reduced; a larger contact surface can be provided, the friction force between the threads on the outer wall of the periphery of the extension cylinder and the threads on the inner wall of the periphery of the locknut is improved, and therefore the stability of connection is improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts technology, and in particular to a two-wheeled vehicle adjusting nut with anti-loosening function. Background Technology

[0002] Bolts and nuts are common fasteners widely used in various industries. They are used to fasten two or more objects together through threaded connections. They are easy to install and disassemble and are stable. However, the installation structure based on bolts and nuts, especially during the riding of two-wheeled vehicles, can cause the nuts and bolts to loosen due to vibration, which can affect the fastening effect and pose safety risks.

[0003] There are several existing methods for preventing loosening, such as double nut reinforcement, adhesive bonding, or specific anti-loosening elements. However, these methods are limited in practical applications on two-wheeled vehicles. When used on off-road two-wheeled vehicles, the high-frequency vibrations on bumpy roads make even double nut tightening ineffective. Moreover, in such specific application environments, the two-wheeled vehicles themselves often need to be disassembled and repaired frequently. If adhesive bonding is used for anti-loosening, disassembly is time-consuming and cannot be reused. Furthermore, specific anti-loosening elements, such as washers and clips, are one-time use and cannot be reused. Utility Model Content

[0004] Based on existing technical problems, this utility model proposes a two-wheeled vehicle adjusting nut with anti-loosening function.

[0005] This utility model proposes a two-wheeled vehicle adjusting nut with anti-loosening function, including a screw, a main nut, and an anti-loosening nut. The main nut is threadedly connected to the screw. One end of the main nut is fixedly connected to a frustum-shaped extension cylinder. The inner wall of the extension cylinder has an internal thread that connects with the main nut. The outer wall of the extension cylinder has an external thread along the curved surface and is threadedly connected to the inner wall of the anti-loosening nut.

[0006] Preferably, the inner wall diameter of the extension tube is the same as the inner wall diameter of the main nut, and the outer wall diameter of the end of the extension tube connected to the main nut is larger than the outer wall diameter of the other end of the extension tube.

[0007] By using the above technical solution, an extension cylinder is installed, which solves the problem of the main nut loosening during vibration. When the main nut is tightened, the anti-loosening nut is rotated and connected to the threaded connection on the outer wall of the extension cylinder, so that the main nut is subjected to axial force from the anti-loosening nut, thereby reducing the probability of the main nut loosening due to vibration and improving the tightening effect and stability of the nut.

[0008] Preferably, the end of the extension cylinder away from the main nut has four sets of elastic notches arranged in a ring array along its length, and the cross-section of the elastic notches is wedge-shaped.

[0009] The above technical solution, by incorporating an elastic notch, enhances the tightness between the screw and the main nut. Because the extension cylinder is frustum-shaped, while the inner wall of the lock nut is constricted, and the maximum diameter of the lock nut's inner wall is smaller than the maximum diameter of the extension cylinder's outer wall, while the minimum diameter of the lock nut's inner wall is the same as the minimum diameter of the extension cylinder's outer wall, tightening the lock nut further compresses the extension cylinder, causing deformation at the elastic notch and increasing the friction between the inner thread of the extension cylinder and the surface thread of the screw.

[0010] Preferably, the inner wall of the anti-loosening nut is constricted, and its maximum inner wall diameter is smaller than the maximum outer wall diameter of the extension cylinder, while the minimum inner wall diameter of the anti-loosening nut is the same as the minimum outer wall diameter of the extension cylinder.

[0011] By using the above technical solution, the problem of loosening between the main nut and the screw is solved. When the inner wall of the anti-loosening nut is threaded with the outer wall of the frustum-shaped extension cylinder, it can provide a larger contact surface, which increases the friction between the outer wall thread of the extension cylinder and the inner wall thread of the anti-loosening nut, thereby increasing the stability of the connection.

[0012] Preferably, the threads distributed on the outer wall of the extension cylinder are opposite to those distributed on its inner wall.

[0013] By using the above technical solution, a reverse thread is set, which reduces the probability that the main nut will rotate during the rotation of the anti-loosening nut. At the same time, the main nut cannot be unlocked by rotating it alone without loosening the anti-loosening nut, which reduces the impact of vibration on the fastening effect of the nut and allows for disassembly and reuse.

[0014] Preferably, the axial length of the extension tube is greater than the axial length of the anti-loosening nut.

[0015] By using the above technical solution, the axial length of the extension cylinder is set to be greater than the axial length of the anti-loosening nut, thereby solving the problem of tightening the anti-loosening nut. This is because the maximum diameter of the outer wall of the extension cylinder is greater than the maximum diameter of the inner wall of the anti-loosening nut. When the extension cylinder completely penetrates the anti-loosening nut, the two ends of the constricted inner wall of the anti-loosening nut will squeeze and deform the extension cylinder along the elastic notch. At the same time, under the reaction force, the friction between the outer wall thread of the extension cylinder and the inner wall thread of the anti-loosening nut is enhanced.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. By setting up an extension cylinder, the problem of the main nut loosening during vibration is solved. After the main nut is tightened, the anti-loosening nut is rotated and connected to the threaded connection on the outer wall of the extension cylinder, so that the main nut is subjected to axial force from the anti-loosening nut, thereby reducing the probability of the main nut loosening due to vibration and improving the tightening effect and stability of the nut.

[0018] 2. By setting an elastic notch, the tightness between the screw and the main nut is enhanced. Because the extension tube is frustum-shaped and the inner wall of the lock nut is constricted, and the maximum diameter of the inner wall of the lock nut is smaller than the maximum diameter of the outer wall of the extension tube, while the minimum diameter of the inner wall of the lock nut is the same as the minimum diameter of the outer wall of the extension tube, after tightening the lock nut, the extension tube can be further squeezed and deformed at the elastic notch, increasing the friction between the inner wall thread of the extension tube and the surface thread of the screw.

[0019] 3. By setting an anti-loosening nut, the problem of loosening between the main nut and the screw is solved. When the inner wall of the anti-loosening nut is connected to the outer wall thread of the frustum-shaped extension cylinder, it can provide a larger contact surface, which increases the friction between the outer wall thread of the extension cylinder and the inner wall thread of the anti-loosening nut, thereby increasing the stability of the connection.

[0020] 4. By setting a reverse thread, the probability of the main nut rotating during the rotation of the anti-loosening nut is reduced. At the same time, the main nut cannot be unlocked by rotating it alone without loosening the anti-loosening nut, which reduces the impact of vibration on the fastening effect of the nut. It can also be disassembled and reused.

[0021] 5. By setting the axial length of the extension tube to be greater than the axial length of the lock nut, the problem of locking the lock nut is solved. This is because the maximum diameter of the outer wall of the extension tube is greater than the maximum diameter of the inner wall of the lock nut. When the extension tube completely penetrates the lock nut, the two ends of the constricted inner wall of the lock nut will squeeze and deform the extension tube along the elastic notch. At the same time, under the reaction force, the friction between the outer wall thread of the extension tube and the inner wall thread of the lock nut is enhanced. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of an adjusting nut for a two-wheeled vehicle with anti-loosening function proposed in this utility model;

[0023] Figure 2 This is a front view of the main nut structure of a two-wheeled vehicle adjusting nut with anti-loosening function proposed in this utility model;

[0024] Figure 3 This is a perspective view of the main nut structure of a two-wheeled vehicle adjusting nut with anti-loosening function proposed in this utility model;

[0025] Figure 4This is a cross-sectional view of a two-wheeled vehicle adjusting nut anti-loosening nut structure with anti-loosening function proposed in this utility model;

[0026] Figure 5 This is an exploded view of an adjusting nut for a two-wheeled vehicle with anti-loosening function proposed in this utility model.

[0027] In the diagram: 1. Screw; 2. Main nut; 3. Locking nut; 4. Extension sleeve; 5. Flexible notch. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Reference Figures 1-5 A two-wheeled vehicle adjusting nut with anti-loosening function includes a screw 1, a main nut 2, and an anti-loosening nut 3. The main nut 2 is threadedly connected to the screw 1. One end of the main nut 2 is fixedly connected to a frustum-shaped extension cylinder 4. The inner curved surface of the extension cylinder 4 is provided with an external thread and is threadedly connected to the inner wall of the anti-loosening nut 3.

[0030] To improve the tightening effect of the threaded connection between the main nut 2 and the screw 1, the inner diameter of the extension cylinder 4 is the same as the inner diameter of the main nut 2, and the outer diameter of the end of the extension cylinder 4 connected to the main nut 2 is larger than the outer diameter of the other end of the extension cylinder 4.

[0031] By setting up an extension cylinder, the problem of the main nut loosening during vibration is solved. After the main nut is tightened, the anti-loosening nut is rotated and connected to the threaded connection on the outer wall of the extension cylinder, so that the main nut is subjected to axial force from the anti-loosening nut, thereby reducing the probability of the main nut loosening due to vibration and improving the tightening effect and stability of the nut.

[0032] To enhance the friction between the main nut 2 and the screw 1, the extension cylinder 4 has four sets of elastic notches 5 arranged in a ring array along its length at the end away from the main nut 2. The cross-section of the elastic notches 5 is wedge-shaped.

[0033] By setting an elastic notch, the tightness between the screw and the main nut is enhanced. Because the extension tube is frustum-shaped and the inner wall of the lock nut is constricted, and the maximum diameter of the inner wall of the lock nut is smaller than the maximum diameter of the outer wall of the extension tube, while the minimum diameter of the inner wall of the lock nut is the same as the minimum diameter of the outer wall of the extension tube, after tightening the lock nut, the extension tube can be further squeezed and deformed at the elastic notch, increasing the friction between the inner wall thread of the extension tube and the surface thread of the screw.

[0034] To increase the stability of the connection, the inner wall of the anti-loosening nut 3 is constricted, and its maximum inner wall diameter is smaller than the maximum outer wall diameter of the extension cylinder 4. The minimum inner wall diameter of the anti-loosening nut 3 is the same as the minimum outer wall diameter of the extension cylinder 4.

[0035] By setting a lock nut, the problem of loosening between the main nut and the screw is solved. When the inner wall of the lock nut is connected to the outer wall of the frustum-shaped extension tube, it can provide a larger contact surface, which increases the friction between the outer wall thread of the extension tube and the inner wall thread of the lock nut, thereby increasing the stability of the connection.

[0036] To reduce the impact of vibration on nut tightening, the threads distributed on the outer wall of the extension cylinder 4 are opposite to those distributed on its inner wall.

[0037] By setting a reverse thread, the probability of the main nut rotating during the rotation of the anti-loosening nut is reduced. At the same time, the main nut cannot be unlocked by rotating it alone without loosening the anti-loosening nut, which reduces the impact of vibration on the nut's tightening effect. In addition, it can be disassembled and reused.

[0038] To increase the stability of the threaded connection, the axial length of the extension cylinder 4 is greater than the axial length of the anti-loosening nut 3.

[0039] By setting the axial length of the extension tube to be greater than the axial length of the lock nut, the problem of tightening the lock nut is solved. This is because the maximum diameter of the outer wall of the extension tube is greater than the maximum diameter of the inner wall of the lock nut. When the extension tube completely penetrates the lock nut, the two ends of the constricted inner wall of the lock nut will squeeze and deform the extension tube along the elastic notch. At the same time, under the reaction force, the friction between the outer wall thread of the extension tube and the inner wall thread of the lock nut is enhanced.

[0040] Working principle: In use, firstly, the screw 1 needs to be inserted through the two or more objects to be fixed. Then, the side of the main nut 2 away from the extension cylinder 4 is connected to the object to be fixed through the threaded connection with the screw 1. Subsequently, the side with the largest diameter of the inner wall of the anti-loosening nut 3 is connected to the threaded connection of the outer wall of the extension cylinder 4. By tightening and compressing the elastic notch, the inner wall thread of the extension cylinder 4 is more firmly connected to the thread of the screw 1, thereby achieving the anti-loosening effect. Because the inner wall thread of the main nut 2 is opposite to the outer wall thread of the extension cylinder 4, when disassembly is required, the anti-loosening nut 3 needs to be loosened first, and then the main nut 2 needs to be loosened. This not only achieves the anti-loosening effect but also allows for reuse, increasing the utilization rate.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A two-wheeled vehicle adjusting nut with anti-loosening function, comprising a screw rod (1), a main nut (2) and an anti-loosening nut (3), characterized in that: The main nut (2) is in threaded connection with the screw rod (1), one end of the main nut (2) is fixedly connected with a circular truncated cone shaped extension cylinder (4), the inner wall of the extension cylinder (4) is provided with internal threads in connection with the main nut (2), the outer wall of the extension cylinder (4) is provided with external threads along a curved surface and is in threaded connection with the inner wall of the lock nut (3).

2. The two-wheeled vehicle adjusting nut with anti-loosening function according to claim 1, characterized in that: The inner wall diameter of the extension cylinder (4) is consistent with the inner wall diameter of the main nut (2), the outer wall diameter of the connection end of the extension cylinder (4) and the main nut (2) is greater than the outer wall diameter of the other end of the extension cylinder (4).

3. The locking nut of claim 2, wherein: The end of the extension cylinder (4) away from the main nut (2) is provided with four groups of annular array arranged elastic slits (5) along the length direction, the cross section of the elastic slit (5) is wedge shaped.

4. The two-wheeled vehicle adjusting nut with anti-loosening function according to claim 3, characterized in that: The inner wall of the lock nut (3) is converging, the maximum diameter of the inner wall is smaller than the maximum diameter of the outer wall of the extension cylinder (4), the minimum diameter of the inner wall of the lock nut (3) is the same as the minimum diameter of the outer wall of the extension cylinder (4).

5. The self-locking two-wheeler adjusting nut as claimed in claim 4 wherein: The threads distributed on the outer wall of the extension cylinder (4) are opposite to the threads distributed on the inner wall of the extension cylinder (4).

6. The locking nut of claim 5, wherein: The axial length of the extension cylinder (4) is greater than the axial length of the lock nut (3).

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