High polymer material silica gel anti-shrinkage deformation silica gel sealing element

Abstract

The utility model belongs to the technical field of silica gel sealing elements, and discloses a high polymer material silica gel anti-shrinkage-deformation silica gel sealing element which comprises a sealing element body, a first reinforcing ring is installed at the upper position in the sealing element body, and a second reinforcing ring is installed at the position, below the first reinforcing ring, in the sealing element body. A spring body is installed between the first reinforcing ring and the second reinforcing ring, the sealing piece body comprises a base material layer, a heat preservation layer, a corrosion-resistant layer and a wear-resistant layer, the heat preservation layer is arranged on the surface of the base material layer, the corrosion-resistant layer is arranged on the surface of the heat preservation layer, and the wear-resistant layer is arranged on the surface of the corrosion-resistant layer. The device is simple and reasonable in structure, novel in design, high in practicability and convenient to widely popularize and use.

Description

Technical Field

[0001] The utility model belongs to the technical field of silicone rubber seals, and more specifically, it particularly relates to a silicone rubber seal made of polymer materials to prevent shrinkage and deformation. Background Technique

[0002] Silicone rubber seals are sealing products made of silicone rubber as the base material. Their main function is to fill and seal the gaps and voids between objects in industry and daily life to prevent the leakage or penetration of liquids, gases, or dust. Silicone rubber seals are widely used in the automotive industry, electronic and electrical equipment, chemical equipment, medical devices, etc. Their excellent performance makes them an indispensable sealing material in modern industry and daily life.

[0003] Some of the current silicone rubber seals are mainly made of rubber. Although the rubber material has good sealing performance, it is prone to shrinkage and deformation under extrusion during use, thus affecting the sealing effect of the silicone rubber seal. At the same time, the silicone rubber seal is prone to deformation due to thermal expansion and contraction in high or low temperature environments, which also affects the use effect of the silicone rubber seal.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a silicone rubber seal made of polymer materials to prevent shrinkage and deformation is provided, with the expectation of achieving a more practical value. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides a silicone rubber seal made of polymer materials to prevent shrinkage and deformation, which is achieved by the following specific technical means:

[0006] A silicone rubber seal made of polymer materials to prevent shrinkage and deformation includes a seal body. Inside the seal body, a first reinforcing ring is installed at the upper position, and a second reinforcing ring is installed below the first reinforcing ring. A spring body is installed between the first reinforcing ring and the second reinforcing ring. The seal body includes a base material layer, a heat-insulating layer, a corrosion-resistant layer, and a wear-resistant layer. The heat-insulating layer is provided on the surface of the base material layer, the corrosion-resistant layer is provided on the surface of the heat-insulating layer, and the wear-resistant layer is provided on the surface of the corrosion-resistant layer.

[0007] Further, the spring body is fixedly connected to the first reinforcing ring and the second reinforcing ring.

[0008] Further, the materials of both the first reinforcing ring and the second reinforcing ring are polystyrene.

[0009] Further, the material of the spring body is alloy spring steel.

[0010] Further, the material of the heat-insulating layer is polyurethane rubber.

[0011] Furthermore, the corrosion-resistant layer is made of an epoxy resin coating.

[0012] Furthermore, the wear-resistant layer is made of a polytetrafluoroethylene coating.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] By the combined use of the first reinforcing ring, the second reinforcing ring and the spring body, when the main body of the seal is subjected to a lateral extrusion force, since the first reinforcing ring and the second reinforcing ring are made of polystyrene plastic, polystyrene is a polymer material with properties such as light weight, high hardness, impact resistance, and easy processing and molding. It has good mechanical properties, impact resistance and moldability. The first reinforcing ring and the second reinforcing ring can provide good support effects. When the main body of the seal is subjected to a longitudinal extrusion force, since the spring body is made of alloy spring steel, alloy spring steel is a type of steel specifically used for manufacturing springs or other elastic parts. Its alloying elements are silicon and manganese, which enhance the hardenability and yield ratio of the steel. Alloy spring steel also has a relatively high yield point, elastic limit and fatigue resistance to ensure that the spring has sufficient elastic deformation ability and can withstand large loads. The spring body can play a good buffering effect when the main body of the seal is subjected to a longitudinal force.

[0015] By the combined use of the heat-insulating layer, the corrosion-resistant layer and the wear-resistant layer, the heat-insulating layer is made of polyurethane rubber. Polyurethane rubber is a new type of heat-insulating material with very wide applications. It is made of a polymer formed by polyols and isocyanates. It has excellent heat-insulating performance and mechanical strength, and is not easy to age, deform, absorb water or penetrate. Thus, it can improve the heat-insulating effect of the main body of the seal, and further reduce the situation where the seal is deformed due to thermal expansion and contraction in high-temperature and low-temperature working environments. The corrosion-resistant layer is made of an epoxy resin coating, and the epoxy resin coating has excellent chemical corrosion resistance, which can effectively protect the surface of the main body of the seal from corrosion and chemical erosion, and extend the service life of the main body of the seal. The wear-resistant layer is made of a polytetrafluoroethylene coating. The wear resistance of polytetrafluoroethylene is very excellent, and its polymer structure can remain stable under friction and wear conditions, reducing material damage caused by wear. At the same time, polytetrafluoroethylene also has excellent anti-aging performance and is not easy to crack and deform due to long-term use, and can provide long-term and stable wear protection, thereby improving the wear-resistant effect of the main body of the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the utility model.

[0017] Figure 2 is a three-dimensional schematic diagram of a partial structure of the utility model.

[0018] Figure 3It is a schematic top view sectional drawing of the present utility model.

[0019] In the figure, the corresponding relationship between the part names and the attached drawing numbers is as follows:

[0020] 1. Sealing element main body; 101. Base material layer; 102. Heat insulation layer; 103. Corrosion-resistant layer; 104. Wear-resistant layer; 2. First reinforcing ring; 3. Second reinforcing ring; 4. Spring body. Specific implementation manners

[0021] The following further describes in detail the implementation manners of the present utility model in conjunction with the attached drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientation or positional relationships shown in the attached drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Embodiment:

[0025] As shown in the attached Figure 1 to the attached Figure 3 figure:

[0026] The utility model provides a silicone sealing member made of polymer material to prevent shrinkage and deformation, which includes a sealing member main body 1. Inside the sealing member main body 1, a first reinforcing ring 2 is installed at the upper position, and a second reinforcing ring 3 is installed below the first reinforcing ring 2 inside the sealing member main body 1. A spring body 4 is installed between the first reinforcing ring 2 and the second reinforcing ring 3. The sealing member main body 1 includes a base material layer 101, a heat insulation layer 102, a corrosion-resistant layer 103 and a wear-resistant layer 104. The surface of the base material layer 101 is provided with the heat insulation layer 102, the surface of the heat insulation layer 102 is provided with the corrosion-resistant layer 103, and the surface of the corrosion-resistant layer 103 is provided with the wear-resistant layer 104.

[0027] Among them, the spring body 4 is fixedly connected to the first reinforcing ring 2 and the second reinforcing ring 3. Through the fixed connection, the connection effect between the first reinforcing ring 2, the second reinforcing ring 3 and the spring body 4 can be increased.

[0028] Among them, the materials of the first reinforcing ring 2 and the second reinforcing ring 3 are both polystyrene. When the sealing member main body 1 is subjected to a lateral extrusion force, since the first reinforcing ring 2 and the second reinforcing ring 3 are made of polystyrene plastic material, and polystyrene is a polymer material with the advantages of light weight, high hardness, impact resistance, easy processing and forming, etc., it has good mechanical properties, impact resistance and formability. The first reinforcing ring 2 and the second reinforcing ring 3 can play a good supporting effect.

[0029] Among them, the material of the spring body 4 is alloy spring steel. When the sealing member main body 1 is subjected to a longitudinal extrusion force, since the spring body 4 is made of alloy spring steel, alloy spring steel is a steel type specially used for manufacturing springs or other elastic parts, and its alloying elements are silicon and manganese. These elements enhance the hardenability and yield ratio of the steel. Alloy spring steel also has a relatively high yield point, elastic limit and fatigue resistance to ensure that the spring has sufficient elastic deformation ability and can withstand a large load. The spring body 4 can play a good buffering effect when the sealing member main body 1 is subjected to a longitudinal force.

[0030] Among them, the material of the heat insulation layer 102 is polyurethane rubber. Polyurethane rubber is a new type of heat insulation material with very wide applications. It is made of a polymer composed of polyol and isocyanate, and has excellent heat insulation performance and mechanical strength, and is not easy to age, deform, absorb water or penetrate, so as to improve the heat insulation effect of the sealing member main body 1.

[0031] Among them, the material of the corrosion-resistant layer 103 is an epoxy resin coating. The epoxy resin coating has excellent chemical corrosion resistance, can effectively protect the surface of the sealing member main body 1 from corrosion and chemical erosion, and extend the service life of the sealing member main body 1.

[0032] Among them, the material of the wear-resistant layer 104 is a polytetrafluoroethylene coating. Polytetrafluoroethylene has excellent wear resistance. Its polymer structure can remain stable under friction and wear conditions, reducing material damage caused by wear. At the same time, polytetrafluoroethylene also has excellent anti-aging performance and is not prone to cracking and deformation due to long-term use, and can provide wear-resistant protection stably for a long time, thereby improving the wear resistance effect of the seal body 1.

[0033] Working principle of this embodiment:

[0034] Through the combined use of the first reinforcing ring 2, the second reinforcing ring 3 and the spring body 4, when the seal body 1 is subjected to a lateral extrusion force, since the first reinforcing ring 2 and the second reinforcing ring 3 are made of polystyrene plastic, polystyrene is a polymer material with properties such as light weight, high hardness, impact resistance, and easy processing and forming, and has good mechanical properties, impact resistance and formability. The first reinforcing ring 2 and the second reinforcing ring 3 can play a good supporting effect. When the seal body 1 is subjected to a longitudinal extrusion force, since the spring body 4 is made of alloy spring steel, alloy spring steel is a steel type specifically used for manufacturing springs or other elastic parts, and its alloying elements are silicon and manganese. These elements enhance the hardenability and yield ratio of the steel. Alloy spring steel also has a high yield point, elastic limit and fatigue resistance to ensure that the spring has sufficient elastic deformation ability and can withstand large loads. The spring body 4 can play a good buffering effect when the seal body 1 is subjected to a longitudinal force. Through the combined use of the heat-insulating layer 102, the corrosion-resistant layer 103 and the wear-resistant layer 104, the material of the heat-insulating layer 102 is polyurethane rubber. Polyurethane rubber is a new type of heat-insulating material and is widely used. It is made of a polymer formed by polyol and isocyanate, and has excellent heat-insulating performance and mechanical strength, and is not prone to aging, deformation, water absorption or penetration, thereby improving the heat-insulating effect of the seal body 1 and further reducing the situation that the seal body 1 is deformed due to thermal expansion and contraction in high-temperature and low-temperature working environments. The material of the corrosion-resistant layer 103 is an epoxy resin coating. The epoxy resin coating has excellent chemical corrosion resistance and can effectively protect the surface of the seal body 1 from corrosion and chemical erosion, extending the service life of the seal body 1. The material of the wear-resistant layer 104 is a polytetrafluoroethylene coating. Polytetrafluoroethylene has excellent wear resistance. Its polymer structure can remain stable under friction and wear conditions, reducing material damage caused by wear. At the same time, polytetrafluoroethylene also has excellent anti-aging performance and is not prone to cracking and deformation due to long-term use, and can provide wear-resistant protection stably for a long time, thereby improving the wear resistance effect of the seal body 1.

[0035] The embodiments of the present utility model are given for purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the present utility model and its practical applications, and to enable those of ordinary skill in the art to understand the present utility model so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A polymer material silicone anti-shrinkage and deformation silicone seal, comprising a seal body (1), characterized in that: A reinforcing ring 1 (2) is installed at an upper position inside the sealing body (1), a reinforcing ring 2 (3) is installed below the reinforcing ring 1 (2) inside the sealing body (1), a spring body (4) is installed between the reinforcing ring 1 (2) and the reinforcing ring 2 (3), the sealing body (1) comprises a base material layer (101), a thermal insulation layer (102), a corrosion-resistant layer (103) and a wear-resistant layer (104), the surface of the base material layer (101) is provided with a thermal insulation layer (102), the surface of the thermal insulation layer (102) is provided with a corrosion-resistant layer (103), and the surface of the corrosion-resistant layer (103) is provided with a wear-resistant layer (104).

2. The polymer material silicone anti-shrinkage and deformation silicone seal as claimed in claim 1, characterized in that: The spring body (4) is fixedly connected to the first reinforcement ring (2) and the second reinforcement ring (3).

3. The polymer material silicone anti-shrinkage and deformation silicone seal as claimed in claim 1, characterized in that: The materials of the reinforcement ring 1 (2) and the reinforcement ring 2 (3) are both polystyrene.

4. The polymer material silicone anti-shrinkage and deformation silicone seal as claimed in claim 1, characterized in that: The material of the spring body (4) is alloy spring steel.

5. The polymer material silicone anti-shrinkage and deformation silicone seal as claimed in claim 1, characterized in that: The material of the thermal insulation layer (102) is polyurethane rubber.

6. The polymer material silicone anti-shrinkage and deformation silicone seal as claimed in claim 1, characterized in that: The material of the corrosion-resistant layer (103) is epoxy resin coating.

7. The polymer material silicone anti-shrinkage and deformation silicone seal as claimed in claim 1, characterized in that: The material of the wear-resistant layer (104) is a polytetrafluoroethylene coating.

Images