Rubber gasket for bolt

Abstract

The utility model discloses a rubber gasket for a bolt, which belongs to the technical field of mechanical assembly, and comprises a first bolt gasket sleeved on the outer wall of a hexagonal head bolt, a second bolt gasket is arranged below the first bolt gasket, and the second bolt gasket can be clamped by an anti-skidding groove when the hexagonal head of the hexagonal head bolt rotates. According to the hexagonal bolt, the friction force between the hexagonal bolt and the surface of the first bolt gasket is increased through the anti-skid groove, so that loosening of the hexagonal bolt can be further prevented, and through the arrangement of the second bolt gasket and the reset spring, the first bolt gasket can move downwards when the hexagonal bolt rotates into the threaded hole; according to the hexagonal head bolt, each reset spring can be stressed and compressed, the first bolt gasket is attached to the second bolt gasket, the threaded end of the hexagonal head bolt can be more tightly attached to the threaded hole through the upward resilience force of each reset spring, and therefore the hexagonal head bolt can be further prevented from rotating and falling off.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical assembly, in particular to a rubber gasket for bolts. Background Art

[0002] A gasket is a mechanical seal between two objects, usually used to prevent leakage due to pressure, corrosion and natural thermal expansion and contraction of the pipeline. Since the machined surface cannot be perfect, a gasket can be used to fill the irregularities. Gaskets are usually made of sheet materials such as pad paper, rubber, silicone rubber, metal, cork, felt, neoprene, nitrile rubber, fiberglass or plastic polymers (such as polytetrafluoroethylene). Gaskets for specific applications may contain asbestos.

[0003] Bolt gasket is a round or special-shaped gasket used to provide sealing, buffering, anti-loosening and other functions between bolts and connecting parts. Its functions include;

[0004] Sealing function: Bolt gaskets can fill the gap between bolts and connectors to prevent the infiltration or leakage of liquids, gases or solid particles. It can provide reliable sealing performance to prevent liquid or gas leakage, thereby ensuring the safety and reliability of the connection.

[0005] Buffering effect: Bolt washers can provide a buffering effect between bolts and connectors, reducing the stress and pressure caused by vibration, impact or deformation, thereby protecting the integrity and stability of the connection.

[0006] Anti-loosening effect: Bolt washers can increase the friction between bolts and connecting parts to prevent them from loosening due to vibration or shock. It can provide a certain friction resistance to keep the bolts tight, thus ensuring the reliability of the connection.

[0007] Pressure equalization effect: Bolt washers can evenly distribute pressure between bolts and connecting parts, so that the connecting parts are subjected to uniform force and avoid local damage caused by concentrated stress.

[0008] For example, Chinese utility model patent CN216111687U discloses an anti-loosening bolt gasket, comprising an inner ring and an outer gasket, wherein the inner ring is provided with a bolt hole, the outer gasket is arranged on the outer side of the inner ring, the outer gasket comprises a bending portion and a clamping portion, the bending portion and the clamping portion are symmetrically arranged along the inner ring, the bending portion can be bent to wrap the bolt, a groove is arranged on a fixing seat for fixing the crusher cutter teeth, the bolt and the bolt gasket are arranged in the groove, after the anti-loosening bolt gasket is installed in the groove, the clamping portion will be clamped with the groove around to prevent the gasket from rotating in the groove, and then after the bolt is connected to the crusher cutter teeth, the bending portion is bent to wrap the bolt, because the gasket will not rotate in the fixing seat, and the gasket wraps the bolt, the bolt is indirectly fixed, preventing the bolt from rotating in the fixing seat, avoiding the bolt from loosening due to long-term vibration, and ensuring the safe operation of the equipment.

[0009] Although the above-mentioned prior art can wrap the bolt, it requires a specific installation environment and a specific gasket to complete the installation, and cannot be applied to other environments, so that the application range is relatively narrow. Summary of the invention

[0010] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0011] In order to solve the problem that the above background technology requires a specific installation environment and a specific gasket to complete the installation, and cannot be applied to other environments, resulting in a narrow application range, the utility model adopts the following technical solution.

[0012] A rubber gasket for a bolt comprises a first bolt gasket sleeved on the outer wall of a hexagonal head bolt, a second bolt gasket is arranged below the first bolt gasket, and a plurality of return springs are fixedly connected between the second bolt gasket and the inner wall of the first bolt gasket near the threaded end of the hexagonal head bolt.

[0013] Preferably, the outer wall of the hexagonal head of the hexagonal head bolt close to the threaded end is provided with a plurality of anti-slip grooves.

[0014] Preferably, the first bolt washer and the second bolt washer are fixedly connected with connecting flanges on opposite surfaces of the threaded ends of the hexagonal head bolts, and a plurality of staggered meshing tooth grooves are arranged on the connecting flanges on both sides.

[0015] Preferably, the first bolt washer and the second bolt washer are provided with a plurality of staggered and penetrating insertion grooves, and a plurality of placement and rotation components are installed on the first bolt washer and the second bolt washer, and the placement and rotation components increase the friction between the hexagonal head bolt and the workpiece.

[0016] Preferably, the anti-rotation assembly includes a rubber sliding block, and a plurality of rubber sliding blocks are fixedly connected to the opposite surfaces of the first bolt gasket and the second bolt gasket, and each rubber sliding block is inserted into the opposite insertion through groove at one time.

[0017] Preferably, a mounting protrusion is provided between the hexagonal head and the threaded end of the hexagonal head bolt.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The anti-skid groove can increase the friction between the hexagonal head of the hexagonal bolt and the surface of the first bolt gasket when the hexagonal head of the hexagonal bolt rotates, thereby further preventing the hexagonal head bolt from loosening.

[0020] 2. By setting the second bolt washer and the return spring, the first bolt washer can be moved downward when the hexagonal head bolt is rotated into the threaded hole, so that each return spring can be compressed, so that the first bolt washer and the second bolt washer fit together, and the upward rebound force of each return spring can increase the fit between the threaded end of the hexagonal head bolt and the threaded hole, thereby further preventing the hexagonal head bolt from rotating and falling off.

[0021] 3. By setting the mounting protrusion in the anti-rotation assembly, when the hexagonal head bolt moves downward with rotation, the first bolt gasket is pressed downward by the mounting protrusion. As the first bolt gasket moves, multiple rubber sliding blocks on the second bolt gasket pass through the inside of the plug-in through groove to contact the anti-slip groove at the bottom of the hexagonal head of the hexagonal head bolt, and the rubber sliding block on the first bolt gasket passes through the second bolt gasket on the second bolt gasket to contact the outer wall of the workpiece, thereby making it more difficult for the bolt to loosen after installation.

[0022] 4. After the first bolt gasket is fitted with the second bolt gasket, the connecting flanges on both sides are meshed through the meshing teeth, thereby further preventing the hexagonal head bolt from rotating, making the hexagonal head bolt more secure and not loose. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a rubber gasket for bolts in the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the hexagonal head bolt in the utility model;

[0025] Figure 3This is a schematic diagram of the structure of the first bolt gasket and the second bolt gasket in the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the rubber sliding block in the utility model;

[0027] Figure 5 For the utility model Figure 4 Enlarged structural diagram at A in the middle.

[0028] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0029] 100, hexagonal bolt; 101, anti-slip groove; 102, mounting protrusion;

[0030] 200, first bolt gasket; 201, second bolt gasket; 202, return spring; 203, plug-in through groove; 204, rubber sliding block; 205, connecting flange; 206, meshing tooth groove. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0034] like Figure 1 As shown, it is a schematic diagram of a rubber gasket structure for a bolt according to a preferred embodiment of the utility model. The rubber gasket for a bolt in this embodiment includes a first bolt gasket 200 sleeved on the outer wall of the hexagonal head bolt 100. In this embodiment, before the hexagonal head bolt 100 is inserted into the threaded hole, the first bolt gasket 200 is located between the hexagonal head of the hexagonal head bolt 100 and the threaded hole. As the hexagonal head bolt 100 rotates, the first bolt gasket 200 is pressed to increase the friction of the hexagonal head of the hexagonal head bolt 100, thereby preventing the hexagonal head bolt 100 from loosening.

[0035] like Figure 2 As shown, it is a schematic diagram of the hexagonal head bolt structure in this embodiment. The outer wall of the hexagonal head of the hexagonal head bolt 100 near the threaded end is provided with multiple anti-slip grooves 101. In this embodiment, through the provision of the anti-slip grooves 101, when the hexagonal head of the hexagonal head bolt 100 rotates, the friction force with the surface of the first bolt gasket 200 can be increased through the anti-slip grooves 101, thereby further preventing the hexagonal head bolt 100 from loosening.

[0036] like Figure 3 As shown, it is a schematic diagram of the structure of the first bolt gasket and the second bolt gasket in this embodiment. A second bolt gasket 201 is arranged below the first bolt gasket 200. The second bolt gasket 201 and the inner wall of the first bolt gasket 200 near the threaded end of the hexagonal head bolt 100 are fixedly connected with a plurality of return springs 202. In this embodiment, through the arrangement of the second bolt gasket 201 and the return spring 202, the first bolt gasket 200 can be moved downward when the hexagonal head bolt 100 is rotated into the threaded hole, so that each return spring 202 can be compressed, so that the first bolt gasket 200 and the second bolt gasket 201 are fitted together. Through the upward rebound force of each return spring 202, the fit between the threaded end of the hexagonal head bolt 100 and the threaded hole can be increased to be tighter, thereby further preventing the hexagonal head bolt 100 from rotating and falling off.

[0037] like Figure 2 as well as Figure 4 As shown, it is a schematic diagram of the hexagonal bolt structure and the rubber sliding block structure in this embodiment. A plurality of staggered and penetrating plug-in through grooves 203 are provided on the first bolt gasket 200 and the second bolt gasket 201. A plurality of rubber sliding blocks 204 are fixedly connected to the opposite surfaces of the first bolt gasket 200 and the second bolt gasket 201. Each rubber sliding block 204 is inserted into the relative plug-in through groove 203 at one time. A mounting protrusion 102 is provided between the hexagonal head and the threaded end of the hexagonal bolt 100. In this embodiment, the hexagonal head As the bolt 100 rotates and moves downward, the first bolt washer 200 is pressed downward by the mounting protrusion 102. As the first bolt washer 200 moves, multiple rubber sliding blocks 204 on the second bolt washer 201 pass through the inside of the plug-in through groove 203 to contact the anti-slip groove 101 at the bottom of the hexagonal head of the hexagonal head bolt 100, and the rubber sliding blocks 204 on the first bolt washer 200 pass through the second bolt washer 201 on the second bolt washer 201 to contact the outer wall of the workpiece, thereby making it more difficult for the bolt to loosen after installation.

[0038] It is worth noting that the rubber sliding block 204 is an anti-rotation component in this embodiment. The anti-rotation component includes but is not limited to the rubber sliding block 204. Any component that can increase friction can be applied to this embodiment.

[0039] like Figure 4 as well as Figure 5 As shown, it is a schematic diagram of the structure of the rubber sliding block in this embodiment and Figure 4 In the enlarged structural schematic diagram at point A, the first bolt washer 200 and the second bolt washer 201 are located on the opposite surfaces of the threaded end of the hexagon head bolt 100 to fix the connecting body connecting flange 205, and a plurality of staggered engaging grooves 206 are arranged on the connecting flanges 205 on both sides. In this embodiment, after the first bolt washer 200 and the second bolt washer 201 are fitted together, the connecting flanges 205 on both sides are engaged through the engaging grooves 206, thereby further preventing the hexagon head bolt 100 from rotating, making the hexagon head bolt 100 more secure and not loose.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0042] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A rubber gasket for a bolt, comprising a first bolt gasket (200) sleeved on the outer wall of a hexagonal head bolt (100), characterized in that: A second bolt washer (201) is arranged below the first bolt washer (200), and a plurality of return springs (202) are fixedly connected between the second bolt washer (201) and the inner wall of the first bolt washer (200) close to the threaded end of the hexagonal head bolt (100).

2. The rubber gasket for bolts according to claim 1, characterized in that: The outer wall of the hexagonal head of the hexagonal bolt (100) close to the threaded end is provided with a plurality of anti-slip grooves (101).

3. The rubber gasket for bolts according to claim 2, characterized in that: The first bolt washer (200) and the second bolt washer (201) are located on opposite surfaces of the threaded end of the hexagonal head bolt (100) to fix the connecting body connecting flange (205), and a plurality of staggered meshing tooth grooves (206) are provided on the connecting flanges (205) on both sides.

4. The rubber gasket for bolts according to claim 3, characterized in that: The first bolt washer (200) and the second bolt washer (201) are provided with a plurality of staggered and through-penetrating insertion slots (203), and the first bolt washer (200) and the second bolt washer (201) are provided with a plurality of placement and rotation assemblies, which increase the friction between the hexagonal head bolt (100) and the workpiece.

5. The rubber gasket for bolts according to claim 4, characterized in that: The anti-rotation assembly comprises a rubber sliding block (204), and a plurality of rubber sliding blocks (204) are fixedly connected to the opposite surfaces of the first bolt gasket (200) and the second bolt gasket (201), and each rubber sliding block (204) is inserted into the interior of the opposite insertion through slot (203) at one time.

6. The rubber gasket for bolts according to claim 5, characterized in that: A mounting protrusion (102) is provided between the hexagonal head and the threaded end of the hexagonal head bolt (100).

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