Improved anti-loosening nut

Abstract

The utility model discloses an improved anti-loosening nut, which relates to the technical field of nuts and comprises a nut assembly, and a fastening component is mounted on the nut assembly. Through the arrangement of the backing ring and the fastening assembly, when the nut is tightened, the multiple first helical racks on the backing ring can firmly clamp the nut and prevent the nut from rotating reversely, meanwhile, after the nut is tightened, the sleeve plate is made to move in the direction close to the backing ring by screwing the fastening assembly, and after the fastening assembly is tightened, the sleeve plate is made to move in the direction close to the backing ring. A plurality of third helical racks on the sleeve plate are matched with and mutually clamped with a plurality of second helical racks on the backing ring to prevent the second helical racks and the nut body from rotating reversely, the sleeve plate presses the backing ring downwards, so that the friction force between the backing ring and the mounting surface is increased, the nut is further prevented from loosening, a plurality of inclined sawteeth at the bottom end of the sleeve plate are tightly attached to the mounting surface, and the service life of the nut is prolonged. The multiple inclined sawteeth can increase friction force, and reverse rotation of the sleeve plate is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, and particularly relates to an improved anti-loosening nut. Background Art

[0002] Nuts and bolts are common fasteners. When a common nut is used in cooperation with a bolt to fix mechanical components, due to the movement or vibration of the machine, after a certain period of time, the nut is prone to loosening, causing the fixed components to become loose or produce abnormal noises.

[0003] Therefore, it is necessary to invent an improved anti-loosening nut to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an improved anti-loosening nut to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An improved anti-loosening nut, comprising a nut assembly, and a fastening component is installed on the nut assembly;

[0006] The nut assembly includes a nut body, and an extension cylinder is fixedly arranged at the bottom end of the nut body;

[0007] The fastening component includes a sleeve plate, and the sleeve plate is sleeved on the extension cylinder.

[0008] Preferably, threads are arranged on both the outer side wall and the inner side wall of the extension cylinder, and a gasket ring is integrally formed around the bottom end of the outer side wall of the extension cylinder.

[0009] Preferably, a plurality of second inclined racks distributed in an annular array are integrally formed at the top end of the gasket ring, and the top ends of the second inclined racks are inclined in the clockwise direction.

[0010] Preferably, a plurality of first inclined racks distributed in an annular array are integrally formed at the bottom end of the gasket ring, and the bottom ends of the first inclined racks are inclined in the counterclockwise direction.

[0011] Preferably, the outer side wall of the sleeve plate is in a regular hexagon shape, a plurality of inclined sawteeth are integrally formed around the bottom edge of the sleeve plate, and the plurality of inclined sawteeth are distributed in an annular array, and the inclined sawteeth are inclined in the counterclockwise direction.

[0012] Preferably, a plurality of third inclined racks distributed in an annular array are integrally formed around the opening edge at the bottom end of the sleeve plate, the third inclined racks are adapted to the second inclined racks, and the bottom ends of the plurality of third inclined racks are inclined in the counterclockwise direction.

[0013] The technical effects and advantages of the utility model:

[0014] With the provision of the spacer ring and the fastening assembly in the present utility model, when the nut is tightened, the multiple first inclined rack teeth on the spacer ring can firmly hold the nut, preventing the nut from rotating in the reverse direction. At the same time, after the nut is tightened, by turning the fastening assembly, the sleeve plate moves towards the direction close to the spacer ring. After the fastening assembly is tightened, the multiple third inclined rack teeth on the sleeve plate cooperate with the multiple second inclined rack teeth on the spacer ring and engage with each other to prevent the second inclined rack teeth and the nut body from rotating in the reverse direction. Moreover, the sleeve plate presses the spacer ring downward, increasing the frictional force between the spacer ring and the mounting surface, further preventing the nut from loosening. Additionally, the multiple inclined saw teeth at the bottom end of the sleeve plate are closely attached to the mounting surface, and the multiple inclined saw teeth can increase the frictional force, preventing the sleeve plate from rotating in the reverse direction, enabling the sleeve plate to firmly press the spacer ring and preventing the nut from rotating in the reverse direction and causing loosening. The nut of the present utility model is not easily loosened after being tightened, improving the stability of fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall three-dimensional structural schematic diagram of the present utility model.

[0016] Figure 2 is the structural schematic diagram of the nut assembly of the present utility model.

[0017] Figure 3 is the structural schematic diagram of the fastening assembly of the present utility model.

[0018] In the figure: 1. Nut assembly; 2. Fastening assembly; 101. Nut body; 102. Extension cylinder; 103. Spacer ring; 104. First inclined rack teeth; 105. Second inclined rack teeth; 201. Sleeve plate; 202. Inclined saw teeth; 203. Third inclined rack teeth. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] The present utility model provides an improved anti-loosening nut as Figures 1-3 shown, including a nut assembly 1, and a fastening assembly 2 is installed on the nut assembly 1.

[0021] Further, the nut assembly 1 includes a nut body 101. A extension cylinder 102 is fixedly arranged at the bottom end of the nut body 101. Threads are provided on both the outer side wall and the inner side wall of the extension cylinder 102. A gasket ring 103 is integrally formed around the bottom end of the outer side wall of the extension cylinder 102. A plurality of second inclined racks 105 distributed in a circular array are integrally formed at the top end of the gasket ring 103. Through the arrangement of the gasket ring 103 and the fastening assembly 2, when the nut is tightened, the plurality of first inclined racks 104 on the gasket ring 103 can firmly hold the nut to prevent the nut from rotating in the reverse direction. The top end of the second inclined rack 105 is inclined in the clockwise direction. A plurality of first inclined racks 104 distributed in a circular array are integrally formed at the bottom end of the gasket ring 103, and the bottom end of the first inclined rack 104 is inclined in the counterclockwise direction.

[0022] The fastening assembly 2 includes a sleeve plate 201, and the sleeve plate 201 is sleeved on the extension cylinder 102. The diameter of the sleeve plate 201 is larger than that of the second inclined rack 105, and the inclined saw teeth 202 are located outside the second inclined rack 105. The outer side wall of the sleeve plate 201 is arranged in a regular hexagon. A plurality of inclined saw teeth 202 are integrally formed around the bottom edge of the sleeve plate 201, and the plurality of inclined saw teeth 202 are distributed in a circular array. The inclined saw teeth 202 are inclined in the counterclockwise direction. A plurality of third inclined racks 203 distributed in a circular array are integrally formed around the bottom opening edge of the sleeve plate 201, and the third inclined racks 203 are adapted to the second inclined racks 105. The bottom ends of the plurality of third inclined racks 203 are inclined in the counterclockwise direction. After the nut is tightened, by turning the fastening assembly 2, the sleeve plate 201 is moved towards the direction close to the gasket ring 103. After the fastening assembly 2 is tightened, the plurality of third inclined racks 203 on the sleeve plate 201 cooperate with the plurality of second inclined racks 105 on the gasket ring 103 and are engaged with each other to prevent the second inclined rack 105 and the nut body 101 from rotating in the reverse direction. Moreover, the sleeve plate 201 presses the gasket ring 103 downwards, increasing the frictional force between the gasket ring 103 and the installation surface, further preventing the nut from loosening. In addition, the plurality of inclined saw teeth 202 at the bottom end of the sleeve plate 201 are closely attached to the installation surface, and the plurality of inclined saw teeth 202 can increase the frictional force, preventing the sleeve plate 201 from rotating in the reverse direction, enabling the sleeve plate 201 to firmly press the gasket ring 103 and preventing the nut from rotating in the reverse direction and causing loosening. The nut of the present utility model is not easily loosened after being tightened, improving the stability of fixation.

[0023] The working principle of the present utility model:

[0024] When in use, when tightening the nut, the multiple first inclined racks 104 on the spacer ring 103 can firmly hold the nut, preventing the nut from rotating in the reverse direction. At the same time, after tightening the nut, by turning the fastening component 2, the sleeve plate 201 moves towards the direction close to the spacer ring 103. After tightening the fastening component 2, the multiple third inclined racks 203 on the sleeve plate 203 cooperate with the multiple second inclined racks 105 on the spacer ring 103 and engage with each other to prevent the second inclined rack 105 and the nut body 101 from rotating in the reverse direction. Moreover, the sleeve plate 201 presses the spacer ring 103 downward, increasing the frictional force between the spacer ring 103 and the installation surface, further preventing the nut from loosening. In addition, the multiple inclined sawteeth 202 at the bottom end of the sleeve plate 201 are closely attached to the installation surface, and the multiple inclined sawteeth 202 can increase the frictional force to prevent the sleeve plate 201 from rotating in the reverse direction.

[0025] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An improved anti-loosening nut, characterized in that: Comprising a nut assembly (1), a fastening component (2) is installed on the nut assembly (1); The nut assembly (1) includes a nut body (101), and an extension cylinder (102) is fixedly arranged at the bottom end of the nut body (101); The fastening component (2) includes a sleeve plate (201), and the sleeve plate (201) is sleeved on the extension cylinder (102).

2. The improved anti-loosening nut according to claim 1, characterized in that: Threads are provided on both the outer side wall and the inner side wall of the extension cylinder (102), and a gasket ring (103) is integrally formed around the bottom end of the outer side wall of the extension cylinder (102).

3. An improved anti-loosening nut according to claim 2, characterized in that: A plurality of second inclined racks (105) distributed in a circular array are integrally formed at the top end of the gasket ring (103), and the top ends of the second inclined racks (105) are inclined in the clockwise direction.

4. An improved anti-loosening nut according to claim 3, characterized in that: A plurality of first inclined racks (104) distributed in a circular array are integrally formed at the bottom end of the gasket ring (103), and the bottom ends of the first inclined racks (104) are inclined in the counterclockwise direction.

5. An improved anti-loosening nut according to claim 4, characterized in that: The outer side wall of the sleeve plate (201) is arranged in a regular hexagon shape, and a plurality of inclined sawteeth (202) are integrally formed around the bottom edge of the sleeve plate (201), and the plurality of inclined sawteeth (202) are distributed in a circular array, and the inclined sawteeth (202) are inclined in the counterclockwise direction.

6. An improved anti-loosening nut according to claim 5, characterized in that: A plurality of third inclined racks (203) distributed in a circular array are integrally formed around the opening edge of the bottom end of the sleeve plate (201), and the third inclined racks (203) are adapted to the second inclined racks (105), and the bottom ends of the plurality of third inclined racks (203) are inclined in the counterclockwise direction.

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