Sealing gasket with anti-fracture structure

Abstract

The utility model belongs to the field of sealing gaskets, and particularly relates to a sealing gasket with an anti-fracture structure, which comprises a sealing gasket body, an anti-fracture mechanism is arranged on the inner wall of the sealing gasket body, the anti-fracture mechanism comprises a polytetrafluoroethylene ring, and the polytetrafluoroethylene ring is fixedly connected to the inner wall of the sealing gasket body. The number of the polytetrafluoroethylene rings is three, the inner walls of the three polytetrafluoroethylene rings are fixedly connected with corrugated rings, the corrugated rings are made of nickel-titanium memory alloy materials, one sides of the polytetrafluoroethylene rings are fixedly connected with elastic pieces, and the three polytetrafluoroethylene rings are fixedly connected through the elastic pieces. The anti-fracture mechanism is arranged, the sealing effect of the sealing gasket body can be improved through the corrugated ring, the sealing gasket body can better adapt to the tiny uneven position of the connecting position, stress can be dispersed, the sealing gasket body is prevented from being fractured, and the overall durability and reliability are improved.

Description

Technical Field

[0001] This utility model relates to the field of sealing gaskets, specifically a sealing gasket with a fracture-resistant structure. Background Technology

[0002] Gaskets are important components used between mechanical parts to prevent leakage of fluids, liquids, or gases. They are commonly used at the connections of equipment such as pipe flanges, pumps, valves, and compressors. The purpose of gaskets is to fill the microscopic unevenness between two mating surfaces and ensure that they can maintain a good sealing effect under the influence of factors such as pressure, temperature changes, and vibration.

[0003] Some existing gaskets are made of rubber only, which are prone to breakage after prolonged use. The main reasons include material aging, stress concentration, fatigue failure, and environmental factors. After the gasket breaks, the sealing performance decreases, which can easily lead to liquid or gas leakage. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, some existing sealing gaskets are made of rubber only, which are prone to breakage after long-term use. The main reasons include material aging, stress concentration, fatigue failure and environmental factors. After the gasket breaks, the sealing performance decreases, which can easily lead to liquid or gas leakage. This utility model proposes a sealing gasket with a breakage-resistant structure.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a sealing gasket with an anti-breakage structure, including a sealing gasket body, wherein the inner wall of the sealing gasket body is provided with an anti-breakage mechanism;

[0006] The anti-fracture mechanism includes polytetrafluoroethylene (PTFE) rings, which are fixedly connected to the inner wall of the sealing gasket body. There are three PTFE rings, and corrugated rings are fixedly connected to the inner walls of each of the three PTFE rings. The corrugated rings are made of nickel-titanium shape memory alloy. An elastic sheet is fixedly connected to one side of each PTFE ring, and the three PTFE rings are fixedly connected to each other by the elastic sheet.

[0007] Preferably, the inner wall of the sealing gasket body is fixedly connected with an elastic mesh plate, and the number of elastic mesh plates is two.

[0008] Preferably, four springs are fixedly connected to the opposite sides of the two elastic mesh plates.

[0009] Preferably, one side of each of the two elastic mesh plates is fixedly connected with silicone rubber, which is arranged in a honeycomb pattern.

[0010] Preferably, the surface of the sealing gasket body is coated with a metal coating, which is made of nickel.

[0011] Preferably, the surface of the metal coating is coated with a nanocomposite coating, which is made of nanoscale reinforcing particle material.

[0012] Preferably, the surface of the nanocomposite coating is coated with a ceramic coating, which is made of inorganic non-metallic material.

[0013] The advantages of this utility model are:

[0014] This invention incorporates an anti-breakage mechanism. The corrugated ring enhances the sealing effect of the gasket body, allowing it to better handle minor unevenness at the joint and distribute stress, preventing damage caused by excessive local compression. This ensures the sealing surfaces remain in close contact, reducing the risk of leakage. Simultaneously, the corrugated ring provides more room for expansion and contraction when compressed, maintaining a good sealing effect under different pressure conditions, preventing gasket breakage, and improving overall durability and reliability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the anti-fracture mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the elastic sheet and the polytetrafluoroethylene ring of this utility model;

[0019] Figure 4 This is a schematic diagram of the polytetrafluoroethylene ring and the corrugated ring of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the silicone rubber and elastic mesh plate of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the metal coating, nanocomposite coating and ceramic coating of this utility model.

[0022] In the figure: 1. Sealing gasket body; 2. Anti-breakage mechanism; 201. PTFE ring; 202. Elastic sheet; 203. Corrugated ring; 3. Elastic mesh plate; 4. Spring; 5. Silicone rubber; 6. Metal coating; 7. Nanocomposite coating; 8. Ceramic coating. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0025] This application discloses a sealing gasket with a fracture-resistant structure. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 A sealing gasket with a breakage-resistant structure includes a sealing gasket body 1, and an anti-breakage mechanism 2 is provided on the inner wall of the sealing gasket body 1.

[0026] The anti-breakage mechanism 2 includes three polytetrafluoroethylene (PTFE) rings 201, which are fixedly connected to the inner wall of the gasket body 1. Each of the three PTFE rings 201 has a corrugated ring 203 fixedly connected to its inner wall. The corrugated ring 203 is made of nickel-titanium shape memory alloy. An elastic sheet 202 is fixedly connected to one side of each PTFE ring 201. The three PTFE rings 201 are all fixedly connected to each other via the elastic sheet 202. By setting the anti-breakage mechanism 2, the corrugated rings 203 can improve the sealing effect of the gasket body 1, allowing the gasket body 1 to better cope with minor unevenness at the joint and disperse stress, avoiding damage caused by excessive local compression. This ensures that the sealing surfaces are always in tight contact, thereby reducing the risk of leakage. Simultaneously, the corrugated rings 203 allow the gasket body 1 more room for expansion and contraction under compression, maintaining a good sealing effect under different pressure conditions, preventing the gasket body 1 from breaking, and improving overall durability and reliability.

[0027] Reference Figure 2 and Figure 5 The inner wall of the sealing gasket body 1 is fixedly connected with an elastic mesh plate 3. There are two elastic mesh plates 3. By setting the elastic mesh plates 3, the overall strength of the sealing gasket body 1 can be improved, and tearing or breakage caused by external pressure or stress concentration can be prevented.

[0028] Reference Figure 2 Two elastic mesh plates 3 are fixedly connected to four springs 4 on opposite sides. By setting the springs 4, the springs 4 have elastic recovery ability and can quickly return to their original shape after compression. Connecting the springs 4 between the two elastic mesh plates 3 can provide additional rebound force when the sealing gasket body 1 is compressed, ensuring that the sealing surfaces are always in tight contact.

[0029] Reference Figure 2 and Figure 5 Silicone rubber 5 is fixedly connected to one side of each of the two elastic mesh plates 3. The silicone rubber 5 is arranged in a honeycomb pattern. By setting the silicone rubber 5, the honeycomb silicone rubber 5 can provide shock absorption and buffering performance, ensuring the safety and stability of the sealing gasket body 1.

[0030] Reference Figure 6 The surface of the sealing gasket body 1 is coated with a metal coating 6, which is made of nickel. By setting the metal coating 6 as a base protective layer, it provides good adhesion and initial hardness, and enhances the wear resistance and corrosion resistance of the sealing gasket body 1.

[0031] Reference Figure 6 The surface of the metal coating 6 is coated with a nano-composite coating 7, which is made of nano-scale reinforcing particle material. By setting the nano-composite coating 7, the comprehensive performance of the sealing gasket body 1 can be further enhanced on the basis of the metal coating 6, such as wear resistance, corrosion resistance and toughness.

[0032] Reference Figure 6 The surface of the nanocomposite coating 7 is coated with a ceramic coating 8, which is made of inorganic non-metallic material. By setting the ceramic coating 8 as the final protective layer, it can provide extremely high high temperature resistance and wear resistance, ensuring that the sealing gasket body 1 can still maintain a good sealing effect under extreme conditions.

[0033] Working principle: When the sealing gasket body 1 is compressed, the rubber layer of the sealing gasket body 1 is compressed first. When the extrusion pressure is transmitted through the rubber layer to the honeycomb silicone rubber 5, the honeycomb silicone rubber 5 has good elasticity and flexibility, which can evenly distribute the applied pressure and transmit the pressure to the elastic mesh plate 3 below. The elastic mesh plate 3 has resilience and can maintain structural stability under pressure, and further transmit the pressure to the spring 4. The two elastic mesh plates 3 compress inward, thereby applying pressure to the spring 4 sandwiched in the middle. The spring 4 can absorb shock. The inward compression applies pressure to the corrugated ring 203 inside the PTFE ring 201. The corrugated ring 203 deforms under compression, but its corrugated structure provides additional expansion space, ensuring that the gasket body 1 is always in close contact with the contact surface of the extruded material. The PTFE ring 201 protects the corrugated ring 203 and reduces the pressure on the corrugated ring 203. The three PTFE rings 201 can be connected by the elastic sheet 202 to ensure the stability of the connection and distribute the pressure, preventing the gasket body 1 from breaking and improving the overall durability and reliability.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A seal gasket having a breakage prevention structure, characterized by: The sealing gasket body (1) is provided with an anti-fracture mechanism (2) on the inner wall thereof; The anti-fracture mechanism (2) comprises three polytetrafluoroethylene rings (201) fixedly connected to the inner wall of the sealing gasket body (1), each of the polytetrafluoroethylene rings (201) is fixedly connected with a corrugated ring (203) made of nickel-titanium memory alloy material, one side of the polytetrafluoroethylene ring (201) is fixedly connected with an elastic sheet (202), and the three polytetrafluoroethylene rings (201) are fixedly connected through the elastic sheets (202).

2. The seal gasket with a breakage prevention structure according to claim 1, characterized by: The inner wall of the sealing gasket body (1) is fixedly connected with two elastic mesh plates (3).

3. The seal gasket with a breakage prevention structure according to claim 2, characterized by: The opposite side of each of the two elastic mesh plates (3) is fixedly connected with a spring (4), and the number of the springs (4) is four.

4. The seal gasket with a breakage prevention structure according to claim 2, characterized by: One side of each of the two elastic mesh plates (3) is fixedly connected with a silicone rubber (5), and the silicone rubber (5) is arranged in a honeycomb shape.

5. The seal gasket with a breakage prevention structure according to claim 1, characterized by: The surface of the sealing gasket body (1) is coated with a metal coating (6) made of nickel.

6. The seal gasket having a breakage prevention structure according to claim 5, characterized by: The surface of the metal coating (6) is coated with a nano-composite coating (7) made of nano-scale reinforcing particles.

7. The seal gasket having a breakage prevention structure according to claim 6, characterized by: The surface of the nano-composite coating (7) is coated with a ceramic coating (8) made of inorganic non-metallic material.

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