Anti-loosening threaded fastener

Abstract

The utility model discloses an anti-loosening threaded fastener, which relates to the technical field of screw fasteners and comprises a screw assembly, and a gasket assembly is movably sleeved on the screw assembly. Through the arrangement of the gasket assembly, the elastic surrounding edge, the elastic blocks and the elastic spacers are arranged between the upper diaphragm and the lower diaphragm, the elastic surrounding edge, the elastic blocks and the elastic spacers all have good elasticity and can play a good buffering role after being fixed through screws, meanwhile, the cavity is formed between the upper diaphragm and the cavity, and therefore the sealing effect is good. A plurality of cavities are formed among the plurality of elastic spacers, so that a buffering effect can be further achieved, the screw is prevented from loosening and even breaking in a vibration environment, and the safety is improved; the plurality of damping strips are arranged at the bottom end of the head part, and the plurality of sinking grooves are formed in the surfaces, far away from each other, of the upper diaphragm and the lower diaphragm; friction force between the gasket assembly and the head and between the gasket assembly and an installation contact surface is increased, and screws are prevented from loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of screw fasteners, in particular to an anti-loosening thread fastener. Background Art

[0002] Screw fasteners currently on the market are prone to loosening in vibration environments, which can damage the connector after a period of operation. Overtightening can lead to fatigue fractures, causing cracks in the screw and compromising safety.

[0003] Therefore, it is necessary to invent an anti-loosening thread fastener to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-loosening threaded fastener to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an anti-loosening threaded fastener, comprising a screw assembly, wherein a washer assembly is movably sleeved on the screw assembly;

[0006] The screw assembly includes a head and a stud, and the stud is fixedly arranged at the middle of the bottom end of the head;

[0007] The gasket assembly includes an upper diaphragm and a lower diaphragm, and the lower diaphragm is located at the bottom of the upper diaphragm. A plurality of elastic blocks are fixedly provided at the bottom end of the upper diaphragm, and the plurality of elastic blocks are distributed in a circular array. A plurality of elastic spacers are fixedly provided between the plurality of elastic blocks and are distributed at equal intervals.

[0008] Preferably, a plurality of damping strips are integrally formed at the bottom end of the head, and the plurality of damping strips are distributed in a ring array.

[0009] Preferably, an elastic edge is provided around the bottom edge of the upper diaphragm, and the bottom end of the elastic edge is fixedly connected to the top edge of the lower diaphragm.

[0010] Preferably, a plurality of sink grooves are provided at the top end of the upper diaphragm and the bottom end of the lower diaphragm, and the plurality of sink grooves are distributed in a ring array.

[0011] Preferably, the sinking groove is adapted to the damping strip, and the sinking groove is arranged in an arc shape.

[0012] Preferably, the bottom end of the elastic block is fixedly connected to the top end of the lower diaphragm, and a plurality of elastic blocks are located inside the elastic surrounding edge.

[0013] Preferably, a plurality of cavities are provided between the plurality of elastic blocks, and the plurality of cavities are separated by a plurality of elastic spacers.

[0014] The technical effects and advantages of this utility model are:

[0015] The utility model provides a gasket assembly, wherein an elastic edge, a plurality of elastic blocks and an elastic spacer are provided between the upper diaphragm and the lower diaphragm. The elastic edge, the elastic blocks and the elastic spacers all have good elasticity and can play a good buffering role after the screws are fixed. At the same time, a cavity is formed between the upper diaphragm and the cavity, and a plurality of cavities are formed between the plurality of elastic spacers, which can further play a buffering role and prevent the screws from loosening or even breaking in a vibration environment, thereby improving safety. At the same time, a plurality of damping strips are provided at the bottom end of the head, and a plurality of recessed grooves are provided on the sides of the upper diaphragm and the lower diaphragm away from each other, so that the friction between the gasket assembly and the head and the installed contact surface is increased to prevent the screws from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the screw assembly structure of the present utility model.

[0018] Figure 3 This is a schematic diagram of the gasket assembly structure of the present utility model.

[0019] Figure 4 This is a schematic diagram of the internal structure of the gasket of the present utility model.

[0020] In the figure: 1. Screw assembly; 2. Gasket assembly; 101. Head; 102. Stud; 103. Damping strip; 201. Upper diaphragm; 202. Lower diaphragm; 203. Elastic edge; 204. Sink; 205. Elastic block; 206. Elastic spacer; 207. Cavity. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The utility model provides Figure 1-4 The anti-loosening threaded fastener shown includes a screw assembly 1, on which a gasket assembly 2 is movably sleeved. The screw assembly 1 includes a head 101 and a stud 102, and the stud 102 is fixedly arranged at the middle of the bottom end of the head 101. The bottom end of the head 101 is integrally formed with a plurality of damping strips 103, and the plurality of damping strips 103 are distributed in a ring array.

[0023] Furthermore, the gasket assembly 2 includes an upper diaphragm 201 and a lower diaphragm 202, and the lower diaphragm 202 is located at the bottom of the upper diaphragm 201, and the bottom edge of the upper diaphragm 201 is surrounded by an elastic edge 203, and the bottom end of the elastic edge 203 is fixedly connected to the top edge of the lower diaphragm 202, and the top of the upper diaphragm 201 and the bottom end of the lower diaphragm 202 are both provided with a plurality of sink grooves 204, and the plurality of sink grooves 204 are distributed in a ring array, and the sink grooves 204 are adapted to the damping strip 103, and the sink grooves 204 is arranged in an arc shape, which can increase the concave area and the friction force. At the same time, the arc direction is consistent with the direction of tightening the screw, further preventing the screw from rotating in the opposite direction and loosening. A plurality of damping strips 103 are arranged at the bottom of the head 101, and a plurality of grooves 204 are arranged on the side away from each other of the upper diaphragm 201 and the lower diaphragm 202, so that the friction force between the gasket assembly 2 and the head 101 and the installed contact surface is increased to prevent the screw from loosening. The bottom end of the upper diaphragm 201 is fixed with a plurality of elastic The elastic block 205 is arranged in a circular array, and the bottom end of the elastic block 205 is fixedly connected to the top end of the lower diaphragm 202, and the multiple elastic blocks 205 are located inside the elastic edge 203. Through the setting of the gasket assembly 2, an elastic edge 203, multiple elastic blocks 205 and an elastic spacer 206 are arranged between the upper diaphragm 201 and the lower diaphragm 202. The elastic edge 203, the elastic block 205 and the elastic spacer 206 all have good elasticity and can play a good buffering role after the screws are fixed. At the same time, a cavity is formed between the upper diaphragm 201 and the cavity 207, and multiple cavities 207 are formed between the multiple elastic spacers 206, which can further play a buffering role to prevent the screws from loosening or even breaking in a vibration environment, thereby improving safety. Multiple elastic spacers 206 distributed at equal intervals are fixedly arranged between the multiple elastic blocks 205, and multiple cavities 207 are arranged between the multiple elastic blocks 205, and the multiple cavities 207 are separated by multiple elastic spacers 206.

[0024] Working principle of this utility model:

[0025] When in use, when the thread is tightened, the bottom end of the head 101 squeezes the upper diaphragm 201, causing the elastic block 205 and the elastic edge 203 between the upper diaphragm 201 and the lower diaphragm 202 to deform. An elastic edge 203, multiple elastic blocks 205 and an elastic spacer 206 are provided between the upper diaphragm 201 and the lower diaphragm 202. The elastic edge 203, the elastic block 205 and the elastic spacer 206 all have good elasticity and can play a good buffering role after the screw is fixed. At the same time, a cavity is formed between the upper diaphragm 201 and the cavity 207, and multiple cavities 207 are formed between the multiple elastic spacers 206, which can further play a buffering role to prevent the screw from loosening or even breaking in a vibration environment, thereby improving safety. At the same time, multiple damping strips 103 are provided at the bottom end of the head 101, and multiple grooves 204 are provided on the sides of the upper diaphragm 201 and the lower diaphragm 202 away from each other, so that the friction between the gasket assembly 2 and the head 101 and the installed contact surface is increased to prevent the screw from loosening.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An anti-loosening threaded fastener, characterized in that: It comprises a screw assembly (1), wherein a gasket assembly (2) is movably sleeved on the screw assembly (1); The screw assembly (1) comprises a head (101) and a stud (102), and the stud (102) is fixedly arranged at the middle of the bottom end of the head (101); The gasket assembly (2) comprises an upper diaphragm (201) and a lower diaphragm (202), wherein the lower diaphragm (202) is located at the bottom of the upper diaphragm (201), a plurality of elastic blocks (205) are fixedly arranged at the bottom end of the upper diaphragm (201), and the plurality of elastic blocks (205) are distributed in a ring array, and a plurality of elastic spacers (206) distributed at equal intervals are fixedly arranged between the plurality of elastic blocks (205).

2. The anti-loosening threaded fastener according to claim 1, characterized in that: The bottom end of the head (101) is integrally formed with a plurality of damping strips (103), and the plurality of damping strips (103) are distributed in a ring array.

3. The anti-loosening threaded fastener according to claim 2, characterized in that: The bottom edge of the upper diaphragm (201) is surrounded by an elastic peripheral edge (203), and the bottom end of the elastic peripheral edge (203) is fixedly connected to the top edge of the lower diaphragm (202).

4. The anti-loosening threaded fastener according to claim 3, characterized in that: A plurality of sink grooves (204) are provided at the top end of the upper diaphragm (201) and the bottom end of the lower diaphragm (202), and the plurality of sink grooves (204) are distributed in a ring array.

5. The anti-loosening threaded fastener according to claim 4, characterized in that: The sinking groove (204) is adapted to the damping strip (103), and the sinking groove (204) is arranged in an arc shape.

6. The anti-loosening threaded fastener according to claim 5, characterized in that: The bottom end of the elastic block (205) is fixedly connected to the top end of the lower diaphragm (202), and a plurality of elastic blocks (205) are located inside the elastic surrounding edge (203).

7. The anti-loosening threaded fastener according to claim 6, characterized in that: A plurality of cavities (207) are provided between the plurality of elastic blocks (205), and the plurality of cavities (207) are separated by a plurality of elastic spacers (206).

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