A sealing ring with double-layer sealing structure

Abstract

The utility model relates to the technical field of sealing ring, especially with double -layer sealing structure's sealing ring. Adopt following scheme: a kind of sealing ring with double -layer sealing structure, including, sealing ring main body, first sealing structure and second sealing structure;Sealing ring main body is hollow cylindrical structure, and the upper half of sealing ring main body is integrally formed and is provided with the first sealing structure for improving the sealing performance of sealing ring main body;The lower half of sealing ring main body is integrally formed and is provided with the second sealing structure for improving the sealing performance of sealing ring main body.The utility model provides a kind of sealing ring with double -layer sealing structure, solves the technical problem that the sealing of traditional structure's sealing ring is poor, and easily leaks.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring technology, and in particular to a sealing ring with a double-layer sealing structure. Background Technology

[0002] A sealing ring is a device used to prevent the leakage of liquids or gases. It is usually made of elastic materials and has a sealing function. The choice of material is of great importance to its sealing performance and service life, and the performance of the material directly affects the performance of the sealing ring.

[0003] Most existing sealing rings have only one sealing layer, which makes them prone to leakage due to poor sealing performance. In practice, increasing the number of sealing rings is often chosen to solve this problem. However, gaps also exist at the joints between the sealing rings. When the sealing rings are compressed and deformed, leaks can easily occur through these gaps. Utility Model Content

[0004] This invention provides a sealing ring with a double-layer sealing structure, which solves the technical problems of poor sealing performance and easy leakage of traditional sealing rings.

[0005] To achieve this technical objective, the present invention adopts the following solution: a sealing ring with a double-layer sealing structure, comprising a sealing ring body, a first sealing structure, and a second sealing structure;

[0006] The sealing ring body is a hollow cylindrical structure. The upper half of the sealing ring body is integrally formed with a first sealing structure to improve the sealing performance of the sealing ring body; the lower half of the sealing ring body is integrally formed with a second sealing structure to improve the sealing performance of the sealing ring body.

[0007] Furthermore, the first sealing structure is a circular protrusion;

[0008] Multiple first sealing structures are distributed at equal intervals along the axis of the sealing ring body.

[0009] Furthermore, the second sealing structure is a wavy protrusion, and the second sealing structure covers the outer surface of the lower part of the sealing ring body.

[0010] Furthermore, the sealing ring body has a contraction hole extending along its axis and penetrating the sealing ring body, and a plug with both ends flush with the contraction hole is inserted inside the contraction hole;

[0011] Furthermore, multiple shrinkage holes are evenly distributed along the circumference of the sealing ring body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] The sealing ring disclosed in this utility model has a double-layer sealing structure, which further improves the sealing performance of the sealing ring and prevents leakage.

[0014] The sealing ring disclosed in this utility model also has a shrinkage hole. When the sealing ring is too large to be inserted into the sealing area, the plug in the shrinkage hole can be removed, making the sealing ring easier to deform, thereby improving the applicability of the sealing ring. When there is no sealing ring of the most suitable model and size, the sealing ring disclosed in this utility model can be used in an emergency. Attached Figure Description

[0015] Figure 1 A schematic diagram of a sealing ring with a double-layer sealing structure provided for an embodiment of this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of part A:

[0017] Figure 3 This is another schematic diagram of a sealing ring with a double-layer sealing structure provided for an embodiment of the present utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Sealing ring body; 2. First sealing structure; 3. Second sealing structure; 4. Shrinkage hole; 5. Plug. Detailed Implementation

[0020] To fully understand the purpose, features and effects of this utility model, the following specific embodiments will be used to describe this utility model in detail, but this utility model is not limited thereto.

[0021] like Figures 1 to 3 As shown, the present invention provides a sealing ring with a double-layer sealing structure, comprising a sealing ring body 1, a first sealing structure 2, and a second sealing structure 3. The sealing ring body 1 is a hollow cylindrical structure. The upper half of the sealing ring body 1 is integrally formed with the first sealing structure 2 for improving the sealing performance of the sealing ring body 1; the lower half of the sealing ring body 1 is integrally formed with the second sealing structure 3 for improving the sealing performance of the sealing ring body 1.

[0022] Furthermore, the first sealing structure 2 is a circular protrusion. Multiple first sealing structures 2 are distributed at equal intervals along the axis of the sealing ring body 1.

[0023] Furthermore, the second sealing structure 3 is a wavy protrusion, and the second sealing structure 3 covers the outer surface of the lower part of the sealing ring body 1.

[0024] During use, the sealing ring body 1 is compressed, and the first sealing structure 2 and the second sealing structure 3 are further compressed. The first sealing structure 2 is composed of multiple annular protrusions that are evenly distributed along the axis of the sealing ring body 1. During sealing, it can stably form a multi-threaded seal, thereby improving the sealing effect.

[0025] The second sealing structure 3 is a wavy protrusion, which can further enhance the sealing effect of the sealing ring. When the first sealing structure 2 and the sealing ring body 1 fail to form a seal, the second sealing structure 3 can provide an additional layer of protection to prevent leakage. At the same time, compared with the annular protrusion, the wavy protrusion can effectively increase the contact area, thereby improving the sealing effect.

[0026] In practice, when encountering a sealing ring that is too large and incompatible, and a matching sealing ring is not available, forcibly inserting the sealing ring will cause abnormal deformation of the sealing ring, which will affect the sealing effect. At the same time, because the sealing ring is too large, it will deviate from the ideal position, thus affecting the normal installation of the workpiece.

[0027] To solve this problem, the sealing ring body 1 has a contraction hole 4 extending along its axis and penetrating the sealing ring body 1, and a plug 5 with both ends flush with the contraction hole 4 is inserted inside the contraction hole 4.

[0028] Furthermore, multiple shrinkage holes 4 are evenly distributed along the circumference of the sealing ring body 1.

[0029] By setting the shrinkage hole 4, the deformation capacity of the sealing ring body 1 can be improved. The plug 5 can be removed so that the sealing ring body 1 can be inserted into a smaller installation space, thereby achieving the effect of emergency use.

[0030] Finally, it should be noted that the above-listed embodiments are merely preferred embodiments of the present invention. Of course, those skilled in the art can make modifications and variations to the present invention. If such modifications and variations fall within the scope of the claims of the present invention and their equivalents, they should be considered as being within the protection scope of the present invention.

Claims

1. A seal ring with a double-layer seal structure, characterized by, It includes a sealing ring body (1), a first sealing structure (2), and a second sealing structure (3); The sealing ring body (1) is a hollow cylindrical structure. The upper half of the sealing ring body (1) is integrally formed with a first sealing structure (2) for improving the sealing performance of the sealing ring body (1); the lower half of the sealing ring body (1) is integrally formed with a second sealing structure (3) for improving the sealing performance of the sealing ring body (1).

2. The seal ring with double seal structure according to claim 1, characterized in that, The first sealing structure (2) is an annular protrusion; Multiple first sealing structures (2) are distributed at equal intervals along the axis of the sealing ring body (1).

3. The seal ring with double seal structure according to claim 2, characterized in that, The second sealing structure (3) is a wavy protrusion, and the second sealing structure (3) covers the outer surface of the lower part of the sealing ring body (1).

4. The seal ring with double seal structure according to claim 3, characterized in that, The sealing ring body (1) has a contraction hole (4) extending along its axis and penetrating the sealing ring body (1), and the contraction hole (4) is filled with a plug (5) with both ends flush with the contraction hole (4).

5. The seal ring with double seal structure according to claim 4, characterized in that, The multiple shrinkage holes (4) are distributed at equal intervals along the circumference of the sealing ring body (1).

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