Automobile screw with anti-loosening structure

Abstract

The utility model discloses an automobile screw with an anti-loosening structure, which relates to the technical field of screws and comprises a nut, an anti-loosening mechanism is mounted on one side of the nut, and the anti-loosening mechanism comprises a connecting disc. The anti-skid rubber strips and the fastening inclined thorns are pushed to be in contact with the surface of the part under the elastic action of the anti-loose springs, the anti-skid effect on the surface of the automobile part can be improved, the anti-skid rubber strips are flattened under pressure, axial elastic force can be generated, the friction force between the automobile screw and the surface of the automobile part is increased, and the anti-skid effect is improved. Therefore, the automobile screw is prevented from loosening under the conditions of vibration and the like; the front end of the screw head is of a sharp thorn-shaped structure, rapid alignment and positioning in the screwing-in process are facilitated, the anti-loosening nylon strip is spirally arranged on the outer side of the screw rod part, the anti-loosening nylon strip can make close contact with threads of the screw rod part, large friction force is generated, under the conditions of vibration and the like, the holding force on the screw rod part can be continuously kept, and the automobile screw is prevented from loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to an automobile screw with an anti-loosening structure. Background Art

[0002] Auto parts are the various units that make up the entire car and the products that serve the car. Among them, auto screws are important and indispensable parts in automobile manufacturing and maintenance.

[0003] For example, announcement number CN217519042U discloses an automotive screw with an anti-loosening structure, including an outer fastening screw, an inner anti-loosening locking screw and an anti-loosening assembly. The anti-loosening assembly includes an annular fixing boss, a reset spring, a push rod, a pressure head, a group of anti-loosening nails and a reset plate. The reset plate is in contact with the end of the inner anti-loosening locking screw extending into the outer fastening screw. The reset spring is located between the reset plate and the annular fixing boss. A group of anti-loosening nails are arranged on the outer fastening screw, and the anti-loosening nails are in contact with the pressure head.

[0004] In the prior art, when the anti-loosening structure of the screw is used, the tip of the anti-loosening nail needs to be pushed into the interior of the automobile part. When the hardness of the automobile part is high, the anti-loosening nail cannot be easily inserted, and it will cause damage to the automobile part, affecting the performance and service life of the part. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that inserting anti-loosening nails into automobile parts to prevent loosening may cause damage to automobile parts and affect the performance and service life of the parts, and to propose an automobile screw with an anti-loosening structure.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: an automobile screw with an anti-loosening structure, comprising a nut, an anti-loosening mechanism installed on one side of the nut, the anti-loosening mechanism comprising a connecting disk, one end of the connecting disk being fixedly connected to one end of the nut, and a screw assembly being installed on the other end of the connecting disk, the screw assembly comprising a connecting part, one end of the connecting part being fixedly connected to one end of the connecting disk, an anti-loosening gasket being slidably connected to the outside of the connecting part, an anti-loosening spring being arranged between the anti-loosening gasket and the connecting disk, and the anti-loosening spring being sleeved on the outside of the connecting part.

[0007] Preferably, a fixing groove is provided on one side of the anti-loosening gasket, and a non-slip rubber strip is fixedly connected to the interior of the fixing groove.

[0008] Preferably, a fastening oblique thorn is provided between each pair of the anti-slip rubber strips, and one side of the fastening oblique thorn is fixedly connected to one side of the anti-loosening gasket.

[0009] Preferably, one end of the connecting portion is fixedly connected to a screw portion, and one end of the screw portion is fixedly connected to a screw head.

[0010] Preferably, an anti-loosening nylon strip is fixedly connected to the outer side of the screw portion.

[0011] Preferably, an anti-loosening groove is provided on one side of the screw head.

[0012] Preferably, a cross slot is provided on one side of the nut.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the utility model, as the screw portion is screwed in, the anti-skid rubber strip and the fastening oblique thorns are in contact with the surface of the part, pushing the anti-loosening gasket toward the connecting plate. The elastic force of the anti-loosening spring pushes the anti-skid rubber strip and the fastening oblique thorns to maintain contact with the surface of the part, which can increase the anti-skid effect on the surface of the automobile part. The anti-skid rubber strip is flattened by pressure, which generates an axial elastic force, thereby increasing the friction between the automobile screw and the surface of the automobile part, thereby preventing the automobile screw from loosening under conditions such as vibration.

[0015] 2. In the utility model, the front end of the screw head is a sharp thorn-like structure, which is convenient for quickly finding the position during the screwing process. The outer spiral of the screw part is provided with an anti-loosening nylon strip. The anti-loosening nylon strip will be in close contact with the thread of the screw part, generating a large friction force. Even under the condition of vibration, it can continue to maintain the clamping force on the screw part to prevent the automobile screw from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the first three-dimensional structure of an automobile screw with an anti-loosening structure proposed by the utility model;

[0017] Figure 2 This is a second three-dimensional structural diagram of an automobile screw with an anti-loosening structure proposed by the utility model;

[0018] Figure 3 The utility model provides a schematic diagram of the disassembly structure of an automobile screw with an anti-loosening structure;

[0019] Figure 4 The utility model proposes a car screw with an anti-loosening structure Figure 3 Schematic diagram of the local enlarged structure at point A.

[0020] Legend: 1. Nut; 2. Screw assembly; 21. Anti-loosening nylon strip; 22. Anti-loosening groove; 23. Screw head; 24. Screw rod; 25. Connecting part; 3. Anti-loosening mechanism; 31. Connecting plate; 32. Anti-loosening spring; 33. Anti-loosening gasket; 34. Fixing groove; 35. Anti-slip rubber strip; 36. Fastening spur; 4. Cross slot. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: Figure 1 - Figure 4 As shown, the utility model provides an automobile screw with an anti-loosening structure, including a nut 1, an anti-loosening mechanism 3 is installed on one side of the nut 1, the anti-loosening mechanism 3 includes a connecting disk 31, one end of the connecting disk 31 is fixedly connected to one end of the nut 1, and a screw assembly 2 is installed on the other end of the connecting disk 31, the screw assembly 2 includes a connecting portion 25, one end of the connecting portion 25 is fixedly connected to one end of the connecting disk 31, and an anti-loosening gasket 33 is slidably connected to the outside of the connecting portion 25, an anti-loosening spring 32 is arranged between the anti-loosening gasket 33 and the connecting disk 31, and the anti-loosening spring 32 is sleeved on the outside of the connecting portion 25; a fixing groove 34 is opened on one side of the anti-loosening gasket 33, and an anti-slip rubber strip 35 is fixedly connected to the inside of the fixing groove 34; a fastening oblique thorn 36 is arranged between the two anti-slip rubber strips 35, and one side of the fastening oblique thorn 36 is fixedly connected to one side of the anti-loosening gasket 33.

[0024] When in use, the screw assembly 2 is installed inside the automotive part. As the screw portion 24 is screwed in, the anti-slip rubber strip 35 and the fastening oblique spike 36 contact the surface of the part, pushing the anti-loosening gasket 33 toward the connecting disk 31, and the anti-loosening spring 32 is compressed. The elastic force of the anti-loosening spring 32 pushes the fastening oblique spike 36 on one side of the anti-loosening gasket 33 to maintain contact with the surface of the part. There are multiple fastening oblique spikes 36, and multiple anti-slip rubber strips 35 are distributed in an annular manner on one side of the anti-loosening gasket 33. An anti-slip rubber strip 35 is provided between each pair of fastening oblique spikes 36. The anti-slip rubber strip 35 is fixed inside the fixing groove 34, and the anti-slip rubber strip 35 is made of anti-slip material, which increases the anti-slip effect with the surface of the automotive part. The anti-slip rubber strip 35 is flattened under pressure, which will generate an axial elastic force, thereby increasing the friction between the automotive screw and the surface of the automotive part, thereby preventing the automotive screw from loosening under conditions such as vibration.

[0025] Example 2: Figure 1 and Figure 2 As shown, one end of the connecting portion 25 is fixedly connected to the screw portion 24, and one end of the screw portion 24 is fixedly connected to the screw head 23; the outer side of the screw portion 24 is fixedly connected to the anti-loosening nylon strip 21; one side of the screw head 23 is provided with an anti-loosening groove 22; and one side of the nut 1 is provided with a cross slot 4.

[0026] A screw head 23 is fixed at the front end of the fixing groove 34. The front end of the screw head 23 is a sharp thorn-like structure, which can easily penetrate the target material so as to quickly find the correct position during the screwing process. At the same time, an anti-loosening groove 22 is provided on the outside of the screw head 23 to prevent the screw head 23 from moving backward after being screwed in. An anti-loosening nylon strip 21 is spirally provided on the outer side of the screw portion 24. The anti-loosening nylon strip 21 is made of elastic nylon material. When the screw portion 24 is tightened, the anti-loosening nylon strip 21 will be in close contact with the thread of the screw portion 24, generating a large friction force. Even under conditions of vibration, the clamping force on the screw portion 24 can be continuously maintained to prevent the automobile screw from loosening. The outside of the nut 1 is an external hexagonal screw head, and a cross-shaped cross slot 4 is provided on one side of the nut 1, which can be tightened and loosened in a variety of ways and has strong adaptability.

[0027] The usage and working principle of this device are as follows: a screw head 23 is fixed at the front end of the fixing groove 34, and the automobile screw is screwed into the interior of the part. An anti-loosening nylon strip 21 is provided on the outside of the screw portion 24, which can generate a large friction force. As the screw portion 24 is screwed in, the anti-slip rubber strip 35 and the fastening oblique thorn 36 come into contact with the surface of the part, pushing the anti-loosening gasket 33 toward the connecting disk 31, and the anti-loosening spring 32 is compressed. The elastic force of the anti-loosening spring 32 pushes the fastening oblique thorn 36 on one side of the anti-loosening gasket 33 to maintain contact with the surface of the part. The anti-slip rubber strip 35 and the fastening oblique thorn 36 prevent slipping, increase the friction with the surface of the automobile part, and thus improve the anti-loosening effect of the automobile screw.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An automotive screw with an anti-loosening structure, comprising a nut (1), characterized in that: An anti-loosening mechanism (3) is installed on one side of the nut (1), and the anti-loosening mechanism (3) includes a connecting disk (31), one end of the connecting disk (31) is fixedly connected to one end of the nut (1), and a screw assembly (2) is installed on the other end of the connecting disk (31), and the screw assembly (2) includes a connecting portion (25), one end of the connecting portion (25) is fixedly connected to one end of the connecting disk (31), and an anti-loosening washer (33) is slidably connected to the outside of the connecting portion (25), and an anti-loosening spring (32) is provided between the anti-loosening washer (33) and the connecting disk (31), and the anti-loosening spring (32) is sleeved on the outside of the connecting portion (25).

2. The automotive screw with an anti-loosening structure according to claim 1, characterized in that: A fixing groove (34) is provided on one side of the anti-loosening gasket (33), and an anti-slip rubber strip (35) is fixedly connected inside the fixing groove (34).

3. The automotive screw with an anti-loosening structure according to claim 2, characterized in that: A fastening oblique thorn (36) is provided between each of the anti-slip rubber strips (35), and one side of the fastening oblique thorn (36) is fixedly connected to one side of the anti-loosening gasket (33).

4. The automotive screw with an anti-loosening structure according to claim 1, characterized in that: One end of the connecting portion (25) is fixedly connected to a screw portion (24), and one end of the screw portion (24) is fixedly connected to a screw head (23).

5. The automotive screw with an anti-loosening structure according to claim 4, characterized in that: The outer side of the screw portion (24) is fixedly connected with an anti-loosening nylon strip (21).

6. The automotive screw with an anti-loosening structure according to claim 4, characterized in that: An anti-loosening groove (22) is provided on one side of the screw head (23).

7. The automotive screw with an anti-loosening structure according to claim 1, characterized in that: A cross slot (4) is provided on one side of the nut (1).

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