Gasket with high friction performance

Abstract

The utility model relates to the field of gaskets, in particular to a gasket with high friction performance, which comprises a gasket main body, an inner step and an outer step are annularly arranged on the gasket main body, the inner step and the outer step are not arranged on the same surface of the gasket main body, a smooth layer is arranged on the inner step, and the outer step is arranged on the outer surface of the gasket main body. And a rubber ring is arranged on the outer step. By arranging the outer step and the rubber ring, the gasket is in contact with the mounting surface through the rubber ring when the gasket is not screwed tightly, so that the mounting surface is prevented from being scratched, the limit of static friction force between the gasket and the mounting surface is improved through the rubber ring, relative rotation between the gasket and the mounting surface is reduced, and the mounting surface is further prevented from being scratched.

Description

Technical Field

[0001] This utility model relates to the field of gaskets, and in particular to a gasket with high friction performance. Background Technology

[0002] A washer is a component placed between a connected part and a nut. It is typically 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. The static friction between the washer and the mounting surface is related to the contact between the washer and the mounting surface, as well as the pressure applied to the washer by the bolt. This means that during bolt tightening, there will be a period of relative rotation between the washer and the mounting surface, which can lead to scratches on the mounting surface.

[0003] Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-friction performance gasket. This invention is achieved through the following technical solution:

[0005] A high-friction gasket includes a gasket body, an inner step and an outer step being arranged around the gasket body, wherein the inner step and the outer step are not located on the same surface of the gasket body, a smooth layer is provided on the inner step, and a rubber ring is provided on the outer step.

[0006] In the above technical solution: the gasket body is used to set the other components; the inner step is used to set the smooth layer; the outer step is used to set the rubber ring; the inner step and the outer step are not set on the same surface of the gasket body, so that the smooth layer and the rubber ring can contact the bolt and the mounting surface respectively; the static friction limit between the smooth layer and the bolt is small, which facilitates relative rotation between the bolt and the smooth layer; the rubber ring is used to contact the mounting surface, and the static friction limit between the rubber ring and the mounting surface is large.

[0007] A further feature of this invention is that the thickness of the rubber ring is greater than the height of the outer step.

[0008] In the above technical solution: the thickness of the rubber ring is greater than the height of the outer step, so that the rubber ring has room for deformation and can make the rubber ring contact the mounting surface before the gasket body.

[0009] A further feature of this invention is that the rubber ring is provided with several inclined grooves evenly distributed on it.

[0010] In the above technical solution: the inclined groove is used to make the contact area between the rubber ring and the mounting surface after deformation greater than the contact area between the rubber ring and the mounting surface before deformation, thereby avoiding providing a lot of friction when tightening, which would make tightening inconvenient.

[0011] A further feature of this invention is that the inner diameter of the smooth layer is larger than the inner diameter of the gasket body.

[0012] In the above technical solution, the inner diameter of the smooth layer is larger than the inner diameter of the gasket body, so that the bolt will not come into contact with the side of the smooth layer, thus avoiding the smooth layer being scratched or damaged by the threads.

[0013] A further feature of this invention is that the outer diameter of the rubber ring is the same as the outer diameter of the gasket body.

[0014] In the above technical solution, the outer diameter of the rubber ring is consistent with the outer diameter of the gasket body, making the overall shape of the gasket more regular.

[0015] A further feature of this invention is that the rubber ring is divided into an inner ring and an outer ring, the outer diameter surface of the inner ring is in contact with the inner diameter surface of the outer ring, and the inclined groove includes a positive inclined groove and a negative inclined groove, the positive inclined groove is located on the outer ring, and the negative inclined groove is located on the inner ring.

[0016] In the above technical solution, the rubber ring is divided into an inner ring and an outer ring, and is respectively provided with a forward oblique groove and a reverse oblique groove, so that the rotation direction has less impact on the rubber ring and can improve the anti-loosening performance.

[0017] A further feature of this invention is that the inner ring and the outer ring have the same thickness, and the inner ring and the outer ring are fixedly connected as a single unit.

[0018] In the above technical solution, the inner ring and the outer ring are fixedly connected as one unit, which allows the inner ring and the outer ring to be subjected to friction as a whole, thus preventing the inner ring or the outer ring from separating from the gasket body.

[0019] This utility model discloses a high-friction performance gasket, which, compared with the prior art:

[0020] 1. By setting an outer step and a rubber ring, the gasket contacts the mounting surface through the rubber ring when it is not tightened, thereby preventing the mounting surface from being scratched. The rubber ring increases the static friction limit between the gasket and the mounting surface, thereby reducing the relative rotation between the gasket and the mounting surface and further preventing the mounting surface from being scratched.

[0021] 2. This utility model also provides an inner step and a smooth layer, which allows relative rotation between the washer and the bolt, further preventing the mounting surface from being scratched by the washer. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present utility model;

[0023] Figure 2 This is a perspective view of the present invention from another angle;

[0024] Figure 3 This is a top view of the gasket body of this utility model;

[0025] Figure 4 This is a bottom view of the gasket body of this utility model.

[0026] The numbers and letters in the diagram represent the following component names: 10-Gasket body; 101-Inner step; 102-Outer step; 20-Smooth layer; 30-Rubber ring; 301-Inner ring; 302-Outer ring; 40-Slanted groove; 401-Positive slanted groove; 402-Reverse slanted groove. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0028] like Figure 1-4 As shown, this utility model proposes a high-friction gasket, comprising a gasket body 10, on which an inner step 101 and an outer step 102 are circumferentially arranged, and the inner step 101 and the outer step 102 are not located on the same surface of the gasket body 10. A smooth layer 20 is provided on the inner step 101, and a rubber ring 30 is provided on the outer step 102. The smooth layer can be sintered onto the inner step 101 using powder; the smooth layer 20 can be made of polytetrafluoroethylene, thereby ensuring that the static and dynamic friction coefficients between the smooth layer 20 and the bolt are both small; the rubber ring 30 is bonded to the outer step 102.

[0029] like Figure 1-4 As shown, the present invention proposes a high-friction gasket in which the thickness of the rubber ring 30 is greater than the height of the outer step 102.

[0030] like Figure 1-4 As shown, the present invention proposes a high-friction gasket, wherein the rubber ring 30 is uniformly provided with a plurality of inclined grooves 40.

[0031] like Figure 1-4 As shown, the present invention proposes a high-friction gasket, wherein the inner diameter of the smooth layer 20 is larger than the inner diameter of the gasket body 10.

[0032] like Figure 1-4 As shown, the present invention proposes a high-friction gasket, wherein the outer diameter of the rubber ring 30 is consistent with the outer diameter of the gasket body 10.

[0033] like Figure 1-4As shown, this utility model proposes a high-friction gasket. The rubber ring 30 is divided into an inner ring 301 and an outer ring 302. The outer diameter surface of the inner ring 301 is in contact with the inner diameter surface of the outer ring 302. The inclined groove 40 includes a positive inclined groove 401 and a negative inclined groove 402. The positive inclined groove 401 is located on the outer ring 302, and the negative inclined groove 402 is located on the inner ring 301. The inclination direction of the positive inclined groove 401 is opposite to the inclination direction of the negative inclined groove 402.

[0034] like Figure 1-4 As shown, this utility model proposes a high-friction gasket, wherein the inner ring 301 and the outer ring 302 have the same thickness and are fixedly connected as a single unit. The inner ring 301 and the outer ring 302 are bonded together by vulcanization.

[0035] The working principle of this utility model is as follows:

[0036] a) Place the gasket on the mounting surface and ensure that the rubber ring is in contact with the mounting surface;

[0037] b) Adjust the position of the shim so that the center hole is aligned with the threaded hole on the mounting surface;

[0038] c) Pass the bolt through the center hole and thread it into the threaded hole;

[0039] d) When the top of the bolt contacts the washer, the washer is subjected to pressure and friction from the top of the bolt, causing it to tend to rotate; e) At this time, the rubber ring contacts the mounting surface, and the static friction is greater than the friction between the smooth layer and the top of the bolt; f) Therefore, the washer remains stationary relative to the mounting surface, thereby reducing the scratches caused by the washer to the mounting surface.

[0040] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A high friction performance gasket characterized by: The gasket body (10) is provided with an inner step (101) and an outer step (102), the inner step (101) and the outer step (102) are not arranged on the same surface of the gasket body (10), the inner step (101) is provided with a smooth layer (20), and the outer step (102) is provided with a rubber ring (30).

2. A high friction performance gasket as defined in claim 1, wherein: The thickness of the rubber ring (30) is greater than the height of the outer step (102).

3. A high friction performance gasket according to claim 2, wherein: The rubber ring (30) is uniformly provided with a plurality of inclined grooves (40).

4. A high friction performance gasket as defined in claim 1, wherein: The inner diameter of the smooth layer (20) is greater than the inner diameter of the gasket body (10).

5. A high friction performance gasket as defined in claim 1, wherein: The outer diameter of the rubber ring (30) is consistent with the outer diameter of the gasket body (10).

6. A high friction performance gasket as defined in claim 3, wherein: The rubber ring (30) is divided into an inner ring (301) and an outer ring (302), the outer diameter surface of the inner ring (301) and the inner diameter surface of the outer ring (302) are in contact, the inclined grooves (40) include positive inclined grooves (401) and reverse inclined grooves (402), the positive inclined grooves (401) are located on the outer ring (302), and the reverse inclined grooves (402) are located on the inner ring (301).

7. A high friction performance gasket according to claim 6, wherein: The thickness of the inner ring (301) and the outer ring (302) is consistent, and the inner ring (301) and the outer ring (302) are fixedly connected as a whole.

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