Sealing gasket based on non-asbestos fiber rubber compression

Abstract

The sealing gasket based on non-asbestos fiber rubber compression comprises a backing ring, the inner ring face of the backing ring is provided with an inserting column which is coaxial with the backing ring, the two ends of the inserting column extend out of the upper portion and the lower portion of the backing ring respectively, and the top end of the inserting column is vertically provided with a through hole in a penetrating mode. According to the sealing gasket based on non-asbestos fiber rubber compression, the two metal rings and the springs are arranged, when the sealing gasket is used, after the backing ring is clamped by a flange structure, a certain compression space still exists due to the fact that the interior of the backing ring is a cavity, and after the backing ring is further compressed, the sealing gasket is not prone to deformation. When the gasket is in use, the plurality of springs in the gasket ring are synchronously compressed, at the moment, the plurality of springs always generate outward thrust, and the metal rings at the two ends of the plurality of springs always apply thrust in opposite directions to the two surfaces of the gasket ring, so that the surfaces, in contact with the flanges on the two sides, of the gasket ring are always clung to the flanges, and the sealing effect of the gasket is ensured; and the service life of the gasket is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of sealing gasket technology, and in particular to a sealing gasket based on asbestos-free fiber rubber compression. Background Technology

[0002] Gaskets are sealing components used in machinery, equipment, and pipelines—anywhere fluid is present—to provide a seal, both internally and externally. Gaskets are made from metal or non-metal sheet materials through processes such as cutting, stamping, or shearing. They are used for sealing connections between pipes and between machine parts. Based on material, they can be divided into metal gaskets and non-metal gaskets. Metal gaskets include copper gaskets, stainless steel gaskets, iron gaskets, and aluminum gaskets, while non-metal gaskets include asbestos gaskets, non-asbestos gaskets, paper gaskets, and rubber gaskets.

[0003] Gaskets are an indispensable part of flange structures, providing a good seal for the flange and ensuring the sealing performance of the pipeline. However, current gaskets age and harden after a period of use, losing their sealing effect and having a short service life.

[0004] Therefore, it is necessary to provide a new sealing gasket based on asbestos-free fiber rubber compression to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a sealing gasket based on asbestos-free fiber rubber compression, which solves the technical problem that current sealing gaskets age and harden after a period of use, losing their sealing effect and having a short service life.

[0006] To solve the above technical problems, the present invention provides a sealing gasket based on asbestos-free fiber rubber compression, including a gasket ring. The inner ring surface of the gasket ring is provided with a plug post coaxial with it and extending to the upper and lower exterior of it at both ends, respectively. The top end of the plug post is vertically through-hole.

[0007] The upper surface of the washer ring has multiple vertically penetrating limiting holes, and the inside of the washer ring has an annular inner cavity. The top and bottom ends of the inner cavity are fixedly connected to annular metal rings. Multiple telescopic limiting rods are vertically fixedly connected between two metal rings, and springs are fixedly connected between two metal rings and outside the multiple telescopic limiting rods.

[0008] Preferably, the outer surface of the plug post, and above the gasket, is provided with a plurality of upwardly inclined convex rings that are evenly spaced along the length of the plug post.

[0009] Preferably, the outer surface of the plug post, and below the gasket, is provided with a plurality of downwardly inclined protruding rings at even intervals along the length of the plug post.

[0010] Preferably, the washer ring, the plug post, the plurality of upper convex rings, and the plurality of lower convex rings are integrally formed.

[0011] Preferably, the central axes of the through hole and the plug are located on the same straight line, and both ends of the through hole diffuse outward to form an annular inclined surface.

[0012] Preferably, the plurality of limiting holes are evenly spaced along the circumferential direction of the gasket.

[0013] Compared with related technologies, the sealing gasket based on asbestos-free fiber rubber compression provided by this utility model has the following beneficial effects: This utility model provides a sealing gasket based on asbestos-free fiber rubber compression. By setting two metal rings and multiple springs, when the flange structure clamps the gasket ring during use, there is still a certain amount of compression space because the inside of the gasket ring is a cavity. After further compression, the multiple springs inside the gasket ring will also be compressed synchronously. At this time, the multiple springs will always generate an outward thrust, and the metal rings at both ends of the multiple springs will always apply a thrust in opposite directions to the two sides of the gasket ring, so that the contact surface between the gasket ring and the flanges on both sides is always in close contact with the flanges, thereby ensuring the sealing effect of the gasket and increasing the service life of the gasket. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the sealing gasket based on asbestos-free fiber rubber compression provided by this utility model;

[0015] Figure 2 for Figure 1 The diagram shows a cross-sectional structure of a gasket ring based on asbestos-free fiber rubber compression.

[0016] Figure 3 for Figure 1 The diagram shows the overall external structure of the sealing gasket based on asbestos-free fiber rubber compression.

[0017] The following are the labels in the diagram: 1. Washer ring, 2. Insertion post, 3. Through hole, 4. Limiting hole, 5. Inner cavity, 6. Metal ring, 7. Telescopic limiting rod, 8. Spring, 9. Upper convex ring, 10. Lower convex ring. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic diagram of a preferred embodiment of the sealing gasket based on asbestos-free fiber rubber compression provided by this utility model; Figure 2 for Figure 1 The diagram shows a cross-sectional structure of a gasket ring based on asbestos-free fiber rubber compression. Figure 3 for Figure 1 The diagram shows the overall external structure of the sealing gasket based on asbestos-free fiber rubber compression. The sealing gasket based on asbestos-free fiber rubber compression includes: a gasket ring 1, with a plug post 2 coaxial with the inner ring surface of the gasket ring 1 and extending to the upper and lower exterior of the gasket ring 1 respectively at both ends; the top of the plug post 2 has a through hole 3 vertically extending through it.

[0020] The upper surface of the washer ring 1 has multiple vertically penetrating limiting holes 4. The inside of the washer ring 1 has an annular inner cavity 5. The top and bottom ends of the inner cavity 5 are fixedly connected to an annular metal ring 6. Multiple telescopic limiting rods 7 are vertically fixedly connected between two metal rings 6. Springs 8 are fixedly connected between two metal rings 6 and outside the multiple telescopic limiting rods 7.

[0021] Multiple limiting holes 4 are evenly spaced along the circumference of the gasket 1.

[0022] When this sealing gasket is in use, after the flange structure clamps the gasket 1, there is still a certain amount of compression space because the inside of the gasket 1 is a cavity. After further compression, the multiple springs 8 inside the gasket 1 will also be compressed synchronously. At this time, the multiple springs 8 will always generate an outward thrust, and the metal rings 6 at both ends of the multiple springs 8 will always apply a thrust in opposite directions to the two sides of the gasket 1, so that the contact surface between the gasket 1 and the flanges on both sides is always in close contact with the flanges, thereby ensuring the sealing effect of the gasket and increasing the service life of the gasket.

[0023] Multiple limiting holes 4 correspond to multiple connecting holes on the flange, allowing the connecting flange bolts to pass through during installation. Multiple limiting telescopic rods 7 between the two metal rings 6 serve as limiting rods, ensuring that the two metal rings 6 always remain parallel to each other and do not become skewed, thus ensuring the sealing effect of the device.

[0024] The two ends of the plug-in post 2 can be inserted into the flanges on both sides respectively, further improving the sealing effect of the device.

[0025] Multiple upwardly inclined convex rings 9 are evenly spaced along the length of the plug post 2, located above the pad ring 1 and on the outer surface of the plug post 2.

[0026] On the outer surface of the plug post 2, below the pad ring 1, there are a plurality of downwardly inclined protruding rings 10 evenly spaced along the length direction of the plug post 2.

[0027] Both the upper convex ring 9 and the lower convex ring 10 serve a sealing purpose, and their inclined outer surfaces facilitate the insertion of the plug post 2 into the inner wall of the pipe.

[0028] The washer 1, the plug post 2, multiple upper convex rings 9 and multiple lower convex rings 10 are integrally formed.

[0029] The device consists of a gasket 1, a plug post 2, multiple upper protruding rings 9, and multiple lower protruding rings 10, all made of asbestos-free fiber rubber.

[0030] The central axes of the through hole 3 and the plug post 2 are on the same straight line, and both ends of the through hole 3 extend outward to form an annular inclined surface.

[0031] The outward diffusion at both ends of the through hole 3 facilitates fluid entry.

[0032] The working principle of the sealing gasket based on asbestos-free fiber rubber compression provided by this utility model is as follows:

[0033] When this sealing gasket is in use, after the flange structure clamps the gasket 1, there is still a certain amount of compression space because the inside of the gasket 1 is a cavity. After further compression, the multiple springs 8 inside the gasket 1 will also be compressed synchronously. At this time, the multiple springs 8 will always generate an outward thrust, and the metal rings 6 at both ends of the multiple springs 8 will always apply a thrust in opposite directions to the two sides of the gasket 1, so that the contact surface between the gasket 1 and the flanges on both sides is always in close contact with the flanges, thereby ensuring the sealing effect of the gasket and increasing the service life of the gasket.

[0034] Compared with related technologies, the sealing gasket based on asbestos-free fiber rubber compression provided by this utility model has the following beneficial effects:

[0035] This invention provides a sealing gasket based on asbestos-free fiber rubber compression. By setting two metal rings 6 and multiple springs 8, when the flange structure clamps the gasket 1 during use, there is still a certain amount of compression space because the inside of the gasket 1 is a cavity. After further compression, the multiple springs 8 inside the gasket 1 are also compressed synchronously. At this time, the multiple springs 8 will always generate an outward thrust, and the metal rings 6 at both ends of the multiple springs 8 will always apply a thrust in opposite directions to the two sides of the gasket 1, so that the surface of the gasket 1 that contacts the flanges on both sides is always in close contact with the flanges, thereby ensuring the sealing effect of the gasket and increasing the service life of the gasket.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sealing gasket based on asbestos-free fiber rubber compression, characterized in that, Includes a washer (1), the inner ring surface of the washer (1) is provided with a plug post (2) coaxial with it and extending to the outside of its upper and lower ends respectively, and the top of the plug post (2) is provided with a through hole (3) through vertically. The upper surface of the washer (1) is provided with a plurality of limiting holes (4) through vertically. The inside of the washer (1) is provided with an annular inner cavity (5). The top and bottom ends of the inner cavity (5) are fixedly connected with an annular metal ring (6). A plurality of telescopic limiting rods (7) are fixedly connected vertically between two metal rings (6). A spring (8) is fixedly connected between two metal rings (6) and outside the plurality of telescopic limiting rods (7).

2. The sealing gasket based on asbestos-free fiber rubber compression according to claim 1, characterized in that, On the outer surface of the plug (2) and above the pad ring (1), a plurality of upwardly inclined convex rings (9) are evenly spaced along the length direction of the plug (2) from top to bottom.

3. The sealing gasket based on asbestos-free fiber rubber compression according to claim 2, characterized in that, On the outer surface of the plug (2) and below the pad ring (1), a plurality of downwardly inclined protruding rings (10) are evenly spaced along the length direction of the plug (2) from bottom to top.

4. The sealing gasket based on asbestos-free fiber rubber compression according to claim 3, characterized in that, The gasket (1), the plug post (2), the plurality of upper convex rings (9) and the plurality of lower convex rings (10) are integrally formed.

5. The sealing gasket based on asbestos-free fiber rubber compression according to claim 1, characterized in that, The central axes of the through hole (3) and the plug (2) are located on the same straight line, and both ends of the through hole (3) diffuse outward to form an annular inclined surface.

6. The sealing gasket based on asbestos-free fiber rubber compression according to claim 1, characterized in that, The plurality of limiting holes (4) are evenly spaced along the circumferential direction of the gasket (1).

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