Bolt anti-loosening gasket

Abstract

The utility model relates to the technical field of bolt gaskets, in particular to a bolt anti-loosening gasket. According to the technical scheme, the gasket comprises a gasket body, a bolt groove is formed in the middle of the gasket body, a plurality of sets of stress grooves are formed in the positions, located among the four end corners of the bolt groove, of the gasket body, and a plurality of sets of force release grooves are formed in the positions, located at each set of stress grooves, of the two sides of the gasket body. A plurality of friction blocks are annularly arranged on the two sides of the gasket body, the edge of the outer ring of the gasket body is arranged to be in a chamfer shape, and a metal sheet is arranged in the gasket body. The friction blocks on the two sides of the gasket body are arranged clockwise and anticlockwise respectively, large resistance can be provided for a bolt while it is guaranteed that the bolt can be installed in a fastened mode, the situation that the bolt is loosened is greatly avoided, meanwhile, the overall strength of the gasket body can be enhanced through the arrangement of the metal sheets in the gasket body, and the service life of the gasket body is prolonged. The service life of the gasket body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt gaskets, in particular to a bolt anti-loosening gasket. Background Art

[0002] A bolt gasket is a gasket installed between a bolt and a connecting piece, mainly used to enhance the stability and tightness of the connection. The gasket can prevent the bolt from damaging the connecting piece when stressed, and at the same time can increase the friction force and reduce the loosening of the bolt caused by vibration. Most of the existing gaskets are circular ring pieces made of rubber or metal, with a single structure, providing a small friction force for the bolt during tightening installation, and being easily damaged and having low overall strength when subjected to large pressures from the bolt and the workpiece. For this reason, we specifically propose a bolt anti-loosening gasket. Content of the Utility Model

[0003] The purpose of the utility model is to propose a bolt anti-loosening gasket for the problems existing in the background art.

[0004] The technical solution of the utility model: A bolt anti-loosening gasket includes a gasket body. A bolt groove is provided at the middle position of the gasket body. The bolt groove is arranged in a "cross" shape. The four end corners of the bolt groove are all arranged in an arc shape, and the center position of the bolt groove is arranged in a rounded corner shape. A plurality of stress grooves are provided between the four end corners of the bolt groove on the gasket body. A plurality of stress relief grooves are provided on both sides of the gasket body at each stress groove position. A plurality of friction blocks are arranged in a ring shape on both sides of the gasket body. The outer edge of the gasket body is arranged in a chamfer shape. A metal sheet is arranged inside the gasket body.

[0005] Preferably, a gradually tightening inclined surface is arranged between the upper end corner position and the center position of the bolt groove.

[0006] Preferably, the stress groove penetrates both sides of the gasket body, and the stress groove is arranged in a groove mouth shape.

[0007] Preferably, a plurality of stress relief grooves on one side of the gasket body are inclined clockwise, and a plurality of stress relief grooves on the other side of the gasket body are inclined counterclockwise.

[0008] Preferably, the installation end of each friction block is correspondingly installed with the gasket body. The side of the friction block away from the gasket body is arranged in an inclined surface shape. The inclined surfaces of the plurality of friction blocks on the side of the gasket body close to the stress relief grooves arranged clockwise are arranged clockwise, and the inclined surfaces of the plurality of friction blocks on the side of the gasket body close to the stress relief grooves arranged counterclockwise are arranged counterclockwise.

[0009] Preferably, one side of the multiple friction blocks arranged clockwise on the gasket body is the side in contact with the lower part of the bolt, and one side of the multiple friction blocks arranged counterclockwise on the gasket body is the side in contact with the workpiece.

[0010] Preferably, an installation cavity is formed in the gasket body, and the metal sheet is correspondingly installed in the installation cavity.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects:

[0012] The overall manufacturing process of the utility model is simple and meets the production process requirements of bolt gaskets. The strength of the upper edge position of the gasket body can be enhanced through the setting of the arc and fillet on the bolt groove in cooperation with the chamfer. At the same time, through the setting of the stress groove and the stress relief groove, the extrusion stress received by the gasket body can be relieved, thereby providing protection for the gasket body. Through the clockwise and counterclockwise settings of the friction blocks on both sides of the gasket body, a large resistance can be provided to the bolt while ensuring the bolt can be tightly installed, greatly avoiding the loosening of the bolt. At the same time, through the setting of the metal sheet inside the gasket body, the overall strength of the gasket body can be enhanced, and the service life of the gasket body can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 is Figure 1 the enlarged structural diagram at A in

[0015] Figure 3 is a schematic diagram of the structure of the utility model from another perspective;

[0016] Figure 4 is a partial sectional view of the utility model.

[0017] Reference numerals: 1, gasket body; 2, bolt groove; 3, arc; 4, fillet; 5, stress groove; 6, stress relief groove; 7, friction block; 8, chamfer; 9, metal sheet; 10, installation cavity. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further describes the technical solutions of the utility model with reference to the drawings and specific embodiments.

[0019] Embodiment

[0020] As Figures 1-4As shown in the figure, a bolt anti-loosening gasket proposed by the utility model includes a gasket body 1. A bolt groove 2 is provided at the middle position of the gasket body 1. The bolt groove 2 is arranged in a "cross" shape, and the "cross" shape arrangement of the bolt groove 2 allows the bolt to pass through. The four end corners of the bolt groove 2 are all arranged in an arc 3 shape. The arc 3 arrangement at the end corners of the bolt groove 2 can enhance the strength of the end corners of the bolt groove 2, thereby better reducing the occurrence of cracking at the end corners of the bolt groove 2. The center position of the bolt groove 2 is arranged in a rounded corner 4 shape. The rounded corner 4 arrangement at the center of the bolt groove 2 allows the bolt to pass through. When the bolt is assembled with the device, the position of the rounded corner 4 is in close contact with the outer ring of the bolt column. At the same time, the position of the rounded corner 4 on the bolt groove 2 is slightly upturned, so as to better provide elasticity, and further make the bolt more tightly installed. The upper end corner position and the center position of the bolt groove 2 are arranged in a gradually narrowing inclined plane. The gradually narrowing arrangement of the inner wall from the upper end corner position to the center position of the bolt groove 2 can better ensure the strength of the gasket body 1 after the bolt groove 2 is opened, and avoid the situation that the extrusion force generated when the gasket body 1 is sleeved on the outer ring of the bolt column through the bolt groove 2 damages the gasket body 1. Multiple stress grooves 5 are provided between the four end corners of the bolt groove 2 on the gasket body 1. The stress grooves 5 penetrate both sides of the gasket body 1. The stress grooves 5 are arranged in a notch shape. The arrangement of the stress grooves 5 can make the device better adapt to the extrusion stress of the bolt in the installed state;

[0021] On both sides of the gasket body 1, a plurality of stress relief grooves 6 are provided at the positions of each group of stress grooves 5. A plurality of stress relief grooves 6 on one side of the gasket body 1 are inclined clockwise. Each group of stress relief grooves 6 includes three strip-shaped grooves. The positions from the outermost strip-shaped groove to one end of the innermost strip-shaped groove are arranged in a progressive manner in the clockwise direction. A plurality of stress relief grooves 6 on the other side of the gasket body 1 are inclined counterclockwise. The positions from the innermost strip-shaped groove to one end of the outermost strip-shaped groove are arranged in a decreasing manner in the counterclockwise direction. The setting of the stress relief grooves 6 can better relieve the extrusion stress on the gasket body 1, thereby protecting the gasket body 1 itself and avoiding the situation that the gasket body 1 is damaged due to excessive extrusion force. A plurality of friction blocks 7 are arranged in a ring shape on both sides of the gasket body 1. The installation ends of each group of friction blocks 7 are correspondingly installed with the gasket body 1. The friction blocks 7 are fixedly connected to the gasket body 1. The side of the friction block 7 away from the gasket body 1 is arranged in an inclined surface shape, and the cross section of the friction block 7 is triangular. The inclined surfaces of a plurality of friction blocks 7 on the side of the gasket body 1 close to the stress relief grooves 6 arranged clockwise are arranged clockwise. One side of the plurality of friction blocks 7 arranged clockwise on the gasket body 1 is the side in contact with the lower part of the bolt. When the bolt is assembled and rotated, the inclined surface side of the friction block 7 is in the clockwise direction, so as to avoid the situation that the friction block 7 interferes with the assembly operation. The inclined surfaces of a plurality of friction blocks 7 on the side of the gasket body 1 close to the stress relief grooves 6 arranged counterclockwise are arranged counterclockwise. One side of the plurality of friction blocks 7 arranged counterclockwise on the gasket body 1 is the side in contact with the workpiece. After the bolt is installed, the right-angled side of the friction block 7 can provide greater resistance to the lower part of the bolt, so that the bolt is firmly installed. At the same time, through the elasticity of the friction block 7 itself and the cooperation with the rounded corner 4 at the position of the bolt groove 2, the bolt is always subjected to elastic extrusion force after being tightened, thereby improving the fastening performance of the bolt and greatly avoiding the situation that the bolt becomes loose;

[0022] A metal sheet 9 is arranged inside the gasket body 1. An installation cavity 10 is provided inside the gasket body 1. The metal sheet 9 is correspondingly installed with the installation cavity 10. The metal sheet 9 is fixedly connected to the gasket body 1. The setting of the metal sheet 9 can enhance the overall strength of the gasket body 1 and greatly improve the service life of the gasket body 1. The outer edge of the gasket body 1 is arranged in a chamfer 8 shape. The setting of the chamfer 8 shape can greatly reduce the situation of damage at the edge position of the gasket body 1 and improve the strength of the gasket body 1 again.

[0023] In this embodiment, when the operator needs to assemble the device with a bolt, the operator inserts the bolt column corresponding to the position of the bolt slot 2. At this time, the friction block 7 on the inclined plane of the gasket body 1 in the clockwise direction fits with the lower side of the bolt. Then the operator inserts the bolt column corresponding to the screw hole of the workpiece, so that the other side of the gasket body 1 fits with the surface of the workpiece. Then the operator continuously rotates the bolt column until the bolt column and the nut are in a tightly installed state. At this time, the extrusion stress received by the gasket body 1 is relieved through the stress groove 5 and the force relief groove 6, ensuring the strength of the gasket body 1 and enabling the gasket body 1 to be stably installed between the bolt and the workpiece, thus completing the assembly operation of the device and the bolt.

[0024] The above specific embodiment is only a preferred embodiment of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above embodiment, those skilled in the art can make various alternative improvements and combinations to the above specific embodiment.

Claims

1. A bolt locking gasket, comprising a gasket body (1), characterized in that: A bolt groove (2) is provided at a middle position on the gasket body (1), the bolt groove (2) is arranged in a "cross" shape, the four end corners of the bolt groove (2) are arranged in a circular arc (3), the center position of the bolt groove (2) is arranged in a rounded corner (4), a plurality of groups of stress grooves (5) are provided on the gasket body (1) between the four end corners of the bolt groove (2), a plurality of groups of stress relief grooves (6) are provided on both sides of the gasket body (1) at the position of each group of stress grooves (5), a plurality of groups of friction blocks (7) are arranged in an annular shape on both sides of the gasket body (1), the outer ring edge of the gasket body (1) is arranged in a chamfer (8), and a metal sheet (9) is arranged inside the gasket body (1).

2. A bolt locking washer according to claim 1, characterized in that: The bolt groove (2) is provided with a gradually tightening inclined surface between the upper corner position and the center position.

3. A bolt locking washer according to claim 1, characterized in that: The stress groove (5) passes through both sides of the gasket body (1), and the stress groove (5) is arranged in a notch shape.

4. A bolt locking washer according to claim 1, characterized in that: The multiple groups of force relief grooves (6) on one side of the gasket body (1) are arranged in a clockwise tilted manner, and the multiple groups of force relief grooves (6) on the other side of the gasket body (1) are arranged in a counterclockwise tilted manner.

5. A bolt locking washer according to claim 4, characterized in that: The mounting ends of each group of the friction blocks (7) are mounted corresponding to the gasket body (1); the side of the friction blocks (7) away from the gasket body (1) is arranged in an inclined shape; the inclined surfaces of the multiple groups of friction blocks (7) on the side of the gasket body (1) close to the force relief groove (6) arranged in a clockwise direction are arranged in a clockwise shape; and the inclined surfaces of the multiple groups of friction blocks (7) on the side of the gasket body (1) close to the force relief groove (6) arranged in a counterclockwise direction are arranged in a counterclockwise shape.

6. A bolt locking washer according to claim 5, characterized in that: The side of the multiple groups of friction blocks (7) arranged clockwise on the gasket body (1) is in contact with the bottom of the bolt, and the side of the multiple groups of friction blocks (7) arranged counterclockwise on the gasket body (1) is in contact with the workpiece.

7. The bolt locking washer according to claim 1, characterized in that: The gasket body (1) is provided with a mounting cavity (10), and the metal sheet (9) is mounted corresponding to the mounting cavity (10).

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