Rib reinforced composite sealing gasket

Abstract

The utility model belongs to the technical field of sealing gaskets, and discloses a rib reinforced composite sealing gasket which comprises a gasket body, a main hole and a plurality of bolt holes are formed in the gasket body, a long-span connecting part exists between at least one adjacent bolt hole, the gasket body is made of metal, and rubber coatings are arranged on the two faces of the gasket body. A reinforcing convex rib is arranged at the position, located at the connecting part, of the gasket body in an upward protruding mode, an inner groove is formed in the bottom face of the reinforcing convex rib, and the inner groove is filled with a silica gel line. By selecting a metal material and a surface rubber coating structure, the sealing performance is improved, meanwhile, enough structural strength is guaranteed, by adopting a U-shaped convex rib protruding structure at the long-span connecting part, the plane pressure is increased, the structural strength is improved, the thin rib sealing problem of the sealing gasket is solved, and the sealing effect is improved. Therefore, the design modification of the casing using the sealing gasket is reduced, and the production and purchase cost of the casing is reduced.

Description

Technical Field

[0001] This application relates to the field of gasket technology, and more specifically, to a ribbed reinforced composite gasket. Background Technology

[0002] Gaskets are widely used in the static sealing of the mating surfaces of pipes and housings in engineering machinery and diesel engines. They are used to fill the unevenness of the mating surfaces of parts with their elastic deformation, cut off leakage channels, increase leakage resistance, or prevent the leakage of flowing media (water, gas, oil, etc.) by bearing internal and external pressure differences. Because the design structure of housings varies, when the mating surface of the housing is small and the bolt span is large, conventional sealing methods are difficult to guarantee the sealing effect.

[0003] Gasket materials generally fall into three categories: metal, non-metal, and a combination of non-metal and metal. For the aforementioned structures, conventional gaskets encounter the following problems:

[0004] 1. Non-metallic materials, because of their thin ribs, require increased torque to achieve a sealing effect. However, due to their low strength, non-metallic materials are easily crushed when subjected to increased torque.

[0005] 2. Metal materials generally have poor sealing performance due to their high rigidity and thin ribs. Utility Model Content

[0006] To address the aforementioned issues, this application provides a reinforced composite sealing gasket.

[0007] The technical solution for the reinforced composite sealing gasket provided in this application is as follows:

[0008] A reinforced composite sealing gasket includes a gasket body having a main hole and several bolt holes, with at least one long-span connection between adjacent bolt holes. The gasket body is made of metal, and both sides of the gasket body are coated with a rubber coating. The gasket body has a reinforcing rib protruding upward at the connection point, and the bottom surface of the reinforcing rib has an inner groove filled with silicone wire.

[0009] Furthermore, the rubber coating is a flat coating or a foamed rubber coating.

[0010] Furthermore, the thickness of the rubber coating is 0.1-0.3 mm.

[0011] Furthermore, the cross-sectional shape of the reinforcing rib is U-shaped, and its maximum protrusion height does not exceed twice the thickness of the gasket body.

[0012] Furthermore, the bottom surface of the silicone wire does not exceed the plane containing the bottom surface of the pad body.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] This application improves sealing performance while ensuring sufficient structural strength by using a metal material and a surface rubber coating structure. By adopting a U-shaped rib structure at the long span connection, the planar pressure is increased, the structural strength is improved, and the problem of fine rib sealing of the gasket is solved. This reduces the design modifications required for the housing using the gasket, thereby reducing the production and procurement costs of the housing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this application;

[0016] Figure 2 This is a cross-sectional schematic diagram of the connection part;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0018] Explanation of the labels in the diagram:

[0019] 1. Gasket body; 11. Main hole; 12. Bolt hole; 13. Connecting part; 2. Rubber coating; 3. Reinforcing rib; 4. Silicone wire. Detailed Implementation

[0020] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0021] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] Example 1:

[0024] The present application will be further described in detail below with reference to the accompanying drawings.

[0025] This application discloses a rib-reinforced composite sealing gasket, including a gasket body 1. The gasket body 1 has a main hole 11 and a plurality of bolt holes 12. At least one of the adjacent bolt holes 12 has a long span connecting portion 13. The gasket body 1 is made of metal. Both sides of the gasket body 1 are provided with a rubber coating 2. The gasket body 1 has a reinforcing rib 3 that protrudes upward at the connecting portion 13. The bottom surface of the reinforcing rib 3 has an inner groove, and the inner groove is filled with silicone wire 4.

[0026] Preferably, the rubber coating 2 is a flat coating or a foamed rubber coating 2.

[0027] Preferably, the thickness of the rubber coating 2 is 0.1-0.3 mm.

[0028] Preferably, the cross-sectional shape of the reinforcing rib 3 is U-shaped, and its maximum protrusion height does not exceed twice the thickness of the gasket body 1.

[0029] Preferably, the bottom surface of the silicone wire 4 does not exceed the plane containing the bottom surface of the pad body 1.

[0030] The implementation principle of the rib-reinforced composite sealing gasket in this application embodiment is as follows:

[0031] 1. Based on the requirements of strength and sealing elasticity, a structure of metal material + surface rubber coating is selected, which improves the sealing performance while ensuring sufficient structural strength.

[0032] 2. Due to the large bolt span, it is difficult for the bolt torque load to be fully transmitted to the far end of the thinner rib. By adopting a U-shaped reinforcing rib 3 raised structure at the long span connection 13, the planar pressure is increased and the structural strength is improved.

[0033] 3. Due to the reduced concave contact area of ​​the U-shaped rib, silicone lines 4 are added to the concave part of the U-shaped reinforcing rib 3 to ensure more uniform sealing pressure.

[0034] The main feature of this application's technical solution is that it solves the problem of sealing the fine ribs of the sealing gasket, thereby reducing the design modifications required for the housing using the sealing gasket, and thus reducing the production and procurement costs of the housing.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A reinforced composite sealing gasket, comprising a gasket body (1), wherein the gasket body (1) has a main hole (11) and a plurality of bolt holes (12), and at least one of adjacent bolt holes (12) has a long-span connection portion (13), characterized in that: The gasket body (1) is made of metal. Both sides of the gasket body (1) are provided with a rubber coating (2). The gasket body (1) has a reinforcing rib (3) that protrudes upward at the connection part (13). The bottom surface of the reinforcing rib (3) has an inner groove, and the inner groove is filled with silicone wire (4).

2. The composite sealing gasket with fine rib reinforcement according to claim 1, characterized in that: The rubber coating (2) is a flat coating or a foamed rubber coating.

3. The composite sealing gasket with fine rib reinforcement according to claim 1, characterized in that: The thickness of the rubber coating (2) is 0.1-0.3 mm.

4. The composite sealing gasket with fine rib reinforcement according to claim 1, characterized in that: The cross-sectional shape of the reinforcing rib (3) is U-shaped, and its maximum protrusion height does not exceed twice the thickness of the gasket body.

5. The composite sealing gasket with fine rib reinforcement according to claim 1, characterized in that: The bottom surface of the silicone wire (4) does not exceed the plane containing the bottom surface of the pad body (1).

Images