Self-locking stainless steel washer

Abstract

The utility model relates to the field of gasket production and processing technology discloses self -locking stainless steel gasket from locking type stainless steel gasket, including upper gasket and lower gasket, the similar side of upper gasket and lower gasket is provided with upper tooth, the surface of the other side of lower gasket is provided with lower tooth, the surface of one side of upper gasket is provided with antiskid groove and lug, the inner wall center of upper gasket and lower gasket all is provided with stainless steel matrix, and both sides of each stainless steel matrix all are provided with composite coating, the composite coating of lower gasket inner wall is opened has the sealing groove, and the inner wall of sealing groove is provided with sealing ring. In the utility model, through the cooperation between upper tooth and lower tooth parts, the core self -locking force is formed, and the frictional resistance between equipment and connecting piece and nut is increased, realizes double anti -looseness, can prevent bolt loosening, promotes the connection stability.

Description

Technical Field

[0001] This utility model relates to the field of gasket manufacturing and processing technology, and in particular to self-locking stainless steel gaskets. Background Technology

[0002] A washer is a component placed between a connected part and a nut. It is generally a flat metal ring used to protect the surface of the connected part from scratches by the nut and to distribute the pressure exerted by the nut on the connected part. It is widely used in fastening applications for various types of equipment.

[0003] However, traditional stainless steel washers often rely on simple friction to prevent loosening or simple toothed engagement. Under conditions of high vibration, high load, and sealing requirements, they often fail to prevent loosening and wear quickly, resulting in poor equipment stability and even safety hazards. They are unable to meet the requirements for reliable anti-loosening and functional diversity. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a self-locking stainless steel washer, which aims to improve the problems of poor anti-loosening performance and insufficient wear resistance of traditional washers.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a self-locking stainless steel washer, comprising an upper washer and a lower washer, wherein the upper washer and the lower washer are provided with upper teeth on the adjacent side, the other side surface of the lower washer is provided with lower teeth, and one side surface of the upper washer is provided with anti-slip grooves and protrusions.

[0006] The above technical solution utilizes the mechanical meshing of the upper and lower washers to create a core self-locking force that restricts bolt rotation. Furthermore, the anti-slip groove and protrusion create a rough contact surface, increasing the frictional resistance between the upper and lower washers and the nut and connector. This dual action enhances the anti-loosening effect and stable self-locking, preventing bolt loosening under complex conditions such as vibration and high loads, ensuring long-term connection stability, and making it suitable for various mechanical connection scenarios with high anti-loosening requirements.

[0007] Preferably, a stainless steel substrate is provided at the center of the inner wall of both the upper and lower washers, and a composite coating is provided on both sides of each stainless steel substrate.

[0008] Preferably, the composite coating on the inner wall of the lower gasket has a sealing groove, and the inner wall of the sealing groove is provided with a sealing ring.

[0009] Preferably, the anti-slip groove and the protrusion are disposed on one side surface of the lower washer.

[0010] Preferably, the tips of the upper teeth and the tips of the lower teeth engage with each other.

[0011] Preferably, a rubber sealing gasket is provided on one side of the sealing ring.

[0012] Preferably, the rubber sealing gasket is disposed on the surface of the composite coating on one side of the lower gasket.

[0013] Preferably, the anti-slip grooves and bumps are disposed on the surface of the composite coating.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the cooperation between components such as the upper and lower teeth forms a core self-locking force while increasing the frictional resistance between the equipment, the connecting parts and the nut, achieving double anti-loosening, preventing bolts from loosening and improving connection stability.

[0016] 2. In this utility model, the stainless steel substrate ensures the strength and rigidity of the gasket, the composite coating improves wear resistance and friction coefficient, and increases the stability and durability of the gasket's self-locking performance. At the same time, the sealing ring and rubber sealing gasket achieve sealing, preventing media leakage, and achieving multiple effects of self-locking stability, wear resistance and durability, sealing and structural stability. It is suitable for scenarios with dual requirements of anti-loosening and sealing. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the self-locking stainless steel washer proposed in this utility model;

[0018] Figure 2 This is a bottom view of the self-locking stainless steel washer proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the unfolded structure of the self-locking stainless steel washer proposed in this utility model;

[0020] Figure 4 This is a bottom view of the unfolded structure of the self-locking stainless steel washer proposed in this utility model.

[0021] Figure 5 This is a cross-sectional structural diagram of the self-locking stainless steel washer proposed in this utility model.

[0022] Legend:

[0023] 1. Upper washer; 2. Lower washer; 3. Upper tooth; 4. Lower tooth; 5. Anti-slip groove; 6. Protrusion; 7. Stainless steel substrate; 8. Composite coating; 9. Sealing ring; 10. Rubber sealing gasket. Detailed Implementation

[0024] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Reference Figures 1-4 One embodiment of this utility model is a self-locking stainless steel washer, including an upper washer 1 and a lower washer 2. The upper washer 1 and the lower washer 2 are provided with upper teeth 3 on the side close to each other, and the other side of the lower washer 2 is provided with lower teeth 4. The upper washer 1 is provided with anti-slip grooves 5 and protrusions 6 on one side of its surface.

[0026] Specifically, the core self-locking force is formed by the mechanical engagement of the upper washer 1 and the lower washer 2 through the upper teeth 3 and the lower teeth 4, which can restrict the relative rotation of the bolt. At the same time, the corresponding surfaces of the upper washer 1 and the lower washer 2 are provided with evenly distributed anti-slip grooves 5 and protrusions 6. The anti-slip grooves 5 and protrusions 6 are staggered to form a rough contact surface, which increases the frictional resistance between the upper washer 1 and the lower washer 2 and the nut and the connecting parts, thereby improving the anti-loosening effect, enhancing the self-locking stability of the equipment, preventing the bolt from loosening under complex working conditions such as vibration and high load, ensuring the long-term stability of the connection, and is suitable for various mechanical connection scenarios with high requirements for anti-loosening.

[0027] Reference Figure 5 The inner wall center of both the upper washer 1 and the lower washer 2 is provided with a stainless steel substrate 7, and each stainless steel substrate 7 is provided with a composite coating 8 on both sides.

[0028] Specifically, the upper washer 1 and the lower washer 2 use a stainless steel substrate 7 as the core support structure, which provides strength and rigidity to the whole, ensuring that they are not easily deformed or broken when subjected to pressure during bolt tightening. At the same time, it maintains the overall shape stability of the upper washer 1 and the lower washer 2, avoiding the impact of structural instability on the self-locking effect. The composite coating 8 improves the wear resistance of the surface of the upper washer 1 and the lower washer 2, reduces frictional wear with bolts and connectors during long-term use, extends the service life of the upper washer 1 and the lower washer 2, and can also increase the surface friction coefficient, thereby further enhancing the contact resistance with bolts and connectors, assisting in strengthening the self-locking performance, preventing slippage of the contact surface and loosening, and adapting to the use needs of various complex working conditions.

[0029] Reference Figure 5 The composite coating 8 on the inner wall of the lower gasket 2 has a sealing groove, and a sealing ring 9 is provided on the inner wall of the sealing groove.

[0030] Specifically, an annular sealing groove is provided on the composite coating 8 on the inner wall of the lower washer 2. The sealing ring 9 is installed in close contact with the sealing groove. The sealing ring 9 can fill the tiny gaps between the lower washer 2 and the bolt and connector through its own deformation, so as to achieve a reliable seal. It can also prevent leakage of liquid, gas and dust media, avoid the intrusion of media that may cause bolt corrosion or affect the connection stability, improve the sealing performance and overall durability of the connection, and is suitable for working conditions with sealing requirements.

[0031] Reference Figure 4 Anti-slip groove 5 and protrusion 6 are provided on one side surface of the lower washer 2.

[0032] Specifically, the anti-slip grooves 5 and protrusions 6 are evenly and interwoven in a ring on one side of the lower washer 2, forming a rough contact surface. This increases the frictional resistance between the lower washer 2 and the connector, prevents relative sliding between them when the bolt vibrates, ensures that the lower washer 2 and the connector are in contact with a balanced force, and avoids the reduction of anti-loosening performance caused by local wear.

[0033] Reference Figure 1 and Figure 2 The tip of the upper tooth 3 engages with the tip of the lower tooth 4.

[0034] Specifically, the teeth of the upper tooth 3 and the lower tooth 4 engage together to form a tight mechanical mesh, which can directly restrict the relative sliding between the upper washer 1 and the lower washer 2, blocking the power transmission for bolt loosening from the root, so that the equipment can maintain stable meshing even under high vibration and complex working conditions, avoiding tooth end disengagement leading to self-locking failure, improving the self-locking firmness of the upper washer 1 and the lower washer 2, and ensuring the long-term stability of the bolt connection.

[0035] Reference Figure 4 and Figure 5 A rubber sealing gasket 10 is provided on one side of the sealing ring 9; the rubber sealing gasket 10 is provided on the surface of the composite coating 8 on one side of the lower gasket 2.

[0036] Specifically, the rubber sealing gasket 10 is tightly attached to the surface of the composite coating 8, and the sealing ring 9 cooperates with the rubber sealing gasket 10 to form a double sealing structure. The rubber sealing gasket 10 can fill the tiny gaps between the sealing ring 9 and the surrounding components through elastic deformation, further improving the sealing performance. While ensuring the anti-loosening effect, it also strengthens the sealing performance, making it suitable for connection scenarios with sealing requirements.

[0037] Referring to the figure, anti-slip grooves 5 and bumps 6 are provided on the surface of the composite coating 8.

[0038] Specifically, the anti-slip grooves 5 and protrusions 6 are evenly and alternately distributed on the surface of the composite coating 8, which can improve the surface roughness and friction coefficient of the coating. Combined with the wear-resistant properties of the composite coating 8 itself, it can increase the friction with the connector to achieve the anti-loosening effect, and reduce the surface wear caused by long-term friction, extend the service life of the component, ensure the balanced contact force, and further guarantee the connection stability.

[0039] Working principle: When this utility model is used, the upper washer 1 and the lower washer 2 are engaged with each other by the upper teeth 3 and the lower teeth 4. The mechanical interlocking between the upper teeth 3 and the lower teeth 4 forms the core self-locking force. At the same time, the anti-slip grooves 5 and protrusions 6 on the surface of the lower washer 2 can increase the frictional resistance with the connecting parts and improve the anti-loosening effect. The upper washer 1 also increases the friction with the nut through the anti-slip grooves 5 and protrusions 6 on its surface, thereby further achieving the purpose of anti-loosening.

[0040] Both the upper washer 1 and the lower washer 2 use a stainless steel substrate 7 as their structural core to ensure overall strength and rigidity. The composite coating 8 on both sides of the stainless steel substrate 7 can improve the surface wear resistance and friction coefficient, ensuring stable self-locking performance and resistance to wear during long-term use. In addition, the composite coating 8 on the inner wall of the lower washer 2 has a sealing groove with a sealing ring 9 inside. Together with the rubber sealing gasket 10 embedded in the inner wall of the composite coating 8, it can achieve self-locking while filling gaps through elastic deformation to achieve a sealing effect. It can prevent leakage of liquid and gas media, thereby achieving stable self-locking, preventing bolt loosening, and achieving a sealing function. This results in multiple effects of self-locking stability, wear resistance and durability, sealing, and structural stability, making it suitable for connection scenarios where both anti-loosening and sealing are required.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 self-locking stainless steel washer, comprising an upper washer (1) and a lower washer (2), characterized in that: The upper washer (1) and the lower washer (2) are provided with upper teeth (3) on the side adjacent to each other, and the other side surface of the lower washer (2) is provided with lower teeth (4). The upper washer (1) is provided with anti-slip groove (5) and protrusion (6) on one side surface.

2. The self-locking stainless steel washer according to claim 1, characterized in that: The inner wall center of the upper washer (1) and the lower washer (2) is provided with a stainless steel substrate (7), and each stainless steel substrate (7) is provided with a composite coating (8) on both sides.

3. The self-locking stainless steel washer according to claim 1, characterized in that: The composite coating (8) on the inner wall of the lower gasket (2) has a sealing groove, and a sealing ring (9) is provided on the inner wall of the sealing groove.

4. The self-locking stainless steel washer according to claim 1, characterized in that: The anti-slip groove (5) and the protrusion (6) are provided on one side surface of the lower washer (2).

5. The self-locking stainless steel washer according to claim 1, characterized in that: The tip of the upper tooth (3) engages with the tip of the lower tooth (4).

6. The self-locking stainless steel washer according to claim 3, characterized in that: A rubber sealing gasket (10) is provided on one side of the sealing ring (9).

7. The self-locking stainless steel washer according to claim 6, characterized in that: The rubber sealing gasket (10) is disposed on the surface of the composite coating (8) on one side of the lower gasket (2).

8. The self-locking stainless steel washer according to claim 3, characterized in that: The anti-slip groove (5) and the protrusion (6) are disposed on the surface of the composite coating (8).

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