Fastener adapted to a variety of working conditions

Abstract

The utility model discloses a kind of fasteners suitable for multiple working conditions, specifically related to fastener field, including bolt, bolt side fixedly arranged with threaded rod, the outside one side of threaded rod is provided with limit slot, the limit slot inside is embedded with elastic member, the elastic member is made of silica gel material, and limit slot is located bolt one end, the threaded rod one side is threadedly connected with nut, the nut is close to bolt one end and is provided with antiskid member.The utility model is embedded silica gel elastic member in limit slot, when fastener is in high-frequency vibration or impact working condition, elastic member can absorb vibration energy by self-deformation, buffer the instantaneous impact force between threaded rod and nut, avoid the gap of threaded cooperation surface due to rigid impact, while silica gel elastic member and limit slot are embedded tightly, not easy to fall off after installation, can be long-term adapted to mechanical vibration, equipment operation impact and other high-frequency vibration scene, greatly improve fastener connection stability and service life.

Description

Technical Field

[0001] This utility model relates to the field of fasteners, and more specifically, to a fastener adaptable to various working conditions. Background Technology

[0002] In the field of mechanical connections, threaded fasteners are widely used in various equipment and structures to achieve reliable connections between components; A search revealed an existing patent (publication number: CN 223190803 U) that discloses an anti-loosening fastener, comprising a bolt and a nut. The bolt includes a bolt head and a threaded shank, the threaded shank being threaded into the nut. It also includes an elastic mechanism comprising an elastic plate. One end of the elastic plate is fixed to the end face of the nut away from the bolt head, and the other end of the elastic plate is fixedly connected to the end of the threaded shank away from the bolt head after the nut and threaded shank are threaded together. This invention, by setting up the elastic mechanism, ensures that the nut, after being tightened, receives a continuous thrust from the elastic plate, always moving towards the bolt head. This structure can form a stable preload at the threaded connection, effectively preventing the nut from loosening due to vibration, impact, or other factors, thereby significantly improving the reliability and long-term stability of the connection.

[0003] Existing fasteners are susceptible to vibration and impact, which can cause nuts to loosen. After long-term use, their anti-loosening stability decreases, making them unsuitable for vibration environments under complex working conditions. Furthermore, the aforementioned cited patent documents do not propose any solutions to address these issues. Therefore, a fastener adaptable to various working conditions is proposed to address the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a fastener that is adaptable to various working conditions, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fastener adaptable to various working conditions, including a bolt, a threaded rod fixedly provided on one side of the bolt, a limiting groove provided on the outer side of the threaded rod, an elastic element fitted inside the limiting groove, the elastic element being made of silicone material, and the limiting groove being located at one end of the bolt.

[0006] Preferably, a nut is threaded onto one side of the threaded rod, and an anti-slip element is provided at the end of the nut near the bolt.

[0007] Preferably, the end of the bolt away from the threaded rod is provided with an anti-slip coating, which is made of anti-slip granular rubber material.

[0008] Preferably, the bolt, threaded rod, and nut are each provided with an inner layer on one side, and the inner layer is made of hot-dip galvanized material.

[0009] Preferably, a middle layer is provided on one side of the inner layer, and the middle layer is made of zinc-nickel alloy material.

[0010] Preferably, an outer layer is provided on one side of the middle layer, and the outer layer is made of epoxy resin material.

[0011] Preferably, a wear-resistant coating is provided on one side of the threaded rod, and the wear-resistant coating is made of tungsten carbide material.

[0012] Preferably, a lubricating coating is provided on the outer side of the wear-resistant coating. The lubricating coating is made of polytetrafluoroethylene material and is located on the outermost side of the threaded rod.

[0013] The technical effects and advantages of this utility model are as follows: Compared with existing technologies, this fastener, which is adaptable to various working conditions, uses a silicone elastic element embedded in the threaded rod limiting groove. When the fastener is subjected to high-frequency vibration or impact, the elastic element can absorb vibration energy through its own deformation, buffer the instantaneous impact force between the threaded rod and the nut, and avoid gaps in the threaded mating surface due to rigid collision. At the same time, the silicone elastic element fits tightly with the limiting groove and is not easy to fall off after installation. It can adapt to high-frequency vibration scenarios such as mechanical vibration and equipment operation impact for a long time, greatly improving the connection stability and service life of the fastener. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the elastic element structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the lubricating coating structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the outer layer structure of this utility model.

[0018] The attached diagram is labeled as follows: 1. Bolt; 2. Threaded rod; 3. Nut; 4. Limiting groove; 5. Elastic element; 6. Anti-slip element; 7. Wear-resistant coating; 8. Lubricating coating; 9. Inner layer; 10. Middle layer; 11. Outer layer; 12. Anti-slip coating. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1 As attached Figures 1 to 4 The fastener shown is suitable for various working conditions and includes a bolt 1. A threaded rod 2 is fixedly provided on one side of the bolt 1. A limiting groove 4 is provided on the outer side of the threaded rod 2. An elastic element 5 is fitted inside the limiting groove 4. The elastic element 5 is made of silicone material, and the limiting groove 4 is located at one end of the bolt 1.

[0021] Specifically, the elastic element 5, made of silicone material, is fitted into the limiting groove 4. When the nut 3 is tightened, it is compressed and undergoes elastic deformation, forming a continuous reverse pre-tightening force to counteract the tendency of the nut 3 to rotate due to high-frequency vibration or impact. At the same time, it can buffer the rigid collision of the threaded mating surface, reducing the damage of vibration to the connection structure. Meanwhile, the limiting groove 4 is used to precisely fit and fix the elastic element 5, preventing the elastic element 5 from shifting or falling off under vibration and impact conditions, and providing a stable installation space for the elastic element 5 to play its pre-tightening and anti-loosening role.

[0022] Example 2 Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details: In a preferred embodiment, a nut 3 is threadedly connected to one side of the threaded rod 2, and an anti-slip element 6 is provided at the end of the nut 3 near the bolt 1; furthermore, by providing the anti-slip element 6, it can fit tightly against the surface of the part to be connected, which can increase the coefficient of friction between the nut 3 and the connecting part, prevent the nut 3 from sliding relative to the connecting part due to force or vibration, and further improve the connection stability.

[0023] In a preferred embodiment, an anti-slip coating 12 is provided at the end of the bolt 1 away from the threaded rod 2. The anti-slip coating 12 is made of anti-slip granular rubber material. Furthermore, by providing the anti-slip coating 12, which is made of anti-slip granular rubber material, the friction between the head of the bolt 1 and the surface of the installation tool or the part to be connected can be increased, preventing the head of the bolt 1 from slipping during installation or under force, ensuring accurate and efficient tightening operation, and preventing loosening of the connection due to slippage during long-term use.

[0024] In a preferred embodiment, an inner layer 9 is provided on one side of the bolt 1, the threaded rod 2, and the nut 3. The inner layer 9 is made of hot-dip galvanized material. Furthermore, by providing the inner layer 9, which is made of hot-dip galvanized material, the zinc layer can form an electrochemical protection with the metal substrate, blocking the direct contact between corrosive media such as air and water vapor and the metal, thus providing a basic anti-corrosion barrier for the fastener.

[0025] As a preferred embodiment, a middle layer 10 is provided on one side of the inner layer 9, and the middle layer 10 is made of zinc-nickel alloy material; furthermore, by providing a middle layer 10 made of zinc-nickel alloy material, the corrosion resistance of zinc-nickel alloy is far superior to that of pure zinc, which can further enhance the fastener's resistance to harsh environments such as acids, alkalis, and salt spray.

[0026] In a preferred embodiment, an outer layer 11 is provided on one side of the middle layer 10, and the outer layer 11 is made of epoxy resin material; furthermore, by providing an outer layer 11 made of epoxy resin material, epoxy resin has excellent chemical stability and sealing properties, and can form a dense protective film to completely isolate external moisture and pollutants, and prevent corrosive media from penetrating into the inner layer 9.

[0027] As a preferred embodiment, a wear-resistant coating 7 is provided on one side of the threaded rod 2. The wear-resistant coating 7 is made of tungsten carbide material. Furthermore, by providing the wear-resistant coating 7, which is made of tungsten carbide material, the wear resistance of the threaded mating surface of the threaded rod 2 can be enhanced, the frictional loss during the engagement and disassembly of the nut 3 and during long-term use can be reduced, and the service life of the threaded rod 2 can be extended.

[0028] In a preferred embodiment, a lubricating coating 8 is provided on the outer side of the wear-resistant coating 7. The lubricating coating 8 is made of polytetrafluoroethylene (PTFE) and is located on the outermost side of the threaded rod 2. Furthermore, by providing the lubricating coating 8, which covers the surface of the wear-resistant coating 7 and is made of PTFE, the frictional resistance between the threaded rod 2 and the nut 3 can be reduced, making it easier to quickly tighten or loosen the nut 3, avoiding jamming of the threaded mating surface due to excessive friction, reducing wear, and improving operational convenience and structural durability.

[0029] The working process of this utility model is as follows: First, a limiting groove 4 is specially made at the end of the threaded rod 2 near the bolt 1. The size of the limiting groove 4 is precisely matched with the silicone elastic element 5 to ensure that the elastic element 5 does not loosen or shift after being fitted, providing a stable carrier for the anti-loosening function. When the nut 3 is tightened to the preset fastening position along the thread structure of the threaded rod 2, the end face of the nut 3 will directly contact the silicone elastic element 5 and continuously apply pressure, causing the elastic element 5 to undergo controllable elastic deformation, which can counteract the rotation tendency of the nut 3 under high-frequency vibration or impact conditions in real time. At the same time, the end of the nut 3 near the bolt 1 also integrates an anti-slip element 6. The anti-slip element 6 is made of rubber with a high coefficient of friction. When the nut 3 is tightened, the anti-slip element 6 will fit tightly against the surface of the part to be connected, increasing the contact friction between the nut 3 and the part to be connected, further restricting the rotation tendency of the nut 3, and greatly improving the connection stability of the fastener under high-frequency vibration and repeated impact conditions. Meanwhile, the inner layer 9 is a hot-dip galvanized coating. Through a hot-dip galvanizing process, a uniform zinc layer is formed on the metal substrate surface. This zinc layer forms an electrochemical protection with the metal substrate, preventing direct corrosion and providing a basic anti-corrosion barrier for the fastener, meeting the protection requirements of general humid environments. The middle layer 10 is a zinc-nickel alloy coating, covering the outer side of the inner layer 9. Its passivation film, formed in harsh environments such as acids, alkalis, and salt spray, is denser and more stable, effectively resisting the penetration of corrosive media into the hot-dip galvanized layer. The middle layer 10 significantly reduces the risk of rust on fasteners due to acid and alkali corrosion and salt spray corrosion, forming a reinforced anti-corrosion defense. The outer layer 11 is an epoxy resin coating. As the outermost protective layer, epoxy resin has excellent chemical stability and sealing properties, forming a seamless, dense protective film on the fastener surface, completely isolating it from external moisture, dust, pollutants, and other corrosive media. The bottom layer is a tungsten carbide wear-resistant coating 7, which is applied to the threaded mating surface of the threaded rod 2 through a spraying process. This significantly improves the wear resistance of the threaded surface. During repeated tightening and loosening of the nut 3, or when there is slight relative sliding on the threaded mating surface during long-term use, the tungsten carbide coating can effectively reduce metal wear and prevent the decrease in connection accuracy caused by thread profile deformation. Covering the outside of the wear-resistant coating 7 is a polytetrafluoroethylene (PTFE) lubricating coating 8. PTFE has an extremely low coefficient of friction, which can significantly reduce the frictional resistance between the threaded rod 2 and the nut 3. On the one hand, it can reduce the jamming when the nut 3 is tightened during the installation stage, making it easier for construction personnel to quickly complete the tightening operation. On the other hand, during later maintenance and disassembly, even if the fastener has been used for a long time, the lubricating coating 8 can prevent the threaded mating surface from jamming due to wear, reducing the difficulty of maintenance. In addition, the head of the bolt 1 away from the threaded rod 2 is coated with an anti-slip coating 12. This coating is made of anti-slip granular rubber material. The micron-sized particles evenly distributed on its surface can significantly increase the frictional resistance between the head of the bolt 1 and the installation tool and the surface of the part to be connected. During the tightening operation, it can prevent the tool from slipping and causing operational errors. When the fastener is under stress, it can prevent relative sliding between the head of the bolt 1 and the connecting part, ensuring the reliability of the overall connection.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fastener adaptable to various working conditions, comprising a bolt (1), characterized in that; A threaded rod (2) is fixedly provided on one side of the bolt (1). A limiting groove (4) is provided on the outer side of the threaded rod (2). An elastic element (5) is fitted inside the limiting groove (4). The elastic element (5) is made of silicone material, and the limiting groove (4) is located at one end of the bolt (1).

2. The fastener adaptable to various working conditions according to claim 1, characterized in that: The threaded rod (2) is threaded with a nut (3) on one side, and an anti-slip part (6) is provided on the end of the nut (3) near the bolt (1).

3. A fastener adaptable to various working conditions according to claim 1, characterized in that: The bolt (1) is provided with an anti-slip coating (12) at the end away from the threaded rod (2), and the anti-slip coating (12) is made of anti-slip granular rubber material.

4. A fastener adaptable to various working conditions according to claim 1, characterized in that: The bolt (1), threaded rod (2) and nut (3) are each provided with an inner layer (9) on one side, and the inner layer (9) is made of hot-dip galvanized material.

5. A fastener adaptable to various working conditions according to claim 4, characterized in that: The inner layer (9) has a middle layer (10) on one side, and the middle layer (10) is made of zinc-nickel alloy material.

6. A fastener adaptable to various working conditions according to claim 5, characterized in that: An outer layer (11) is provided on one side of the middle layer (10), and the outer layer (11) is made of epoxy resin material.

7. A fastener adaptable to various working conditions according to claim 1, characterized in that: The threaded rod (2) has a wear-resistant coating (7) on one side, and the wear-resistant coating (7) is made of tungsten carbide material.

8. A fastener adaptable to various working conditions according to claim 7, characterized in that: The wear-resistant coating (7) is provided with a lubricating coating (8) on the outside. The lubricating coating (8) is made of polytetrafluoroethylene material and is located on the outermost side of the threaded rod (2).

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