Sealing ring with high toughness

Abstract

The utility model discloses a sealing ring with high toughness, which comprises a sealing ring main body, the sealing ring main body comprises a base layer, the outer side of the base layer is provided with a high-temperature-resistant layer, the outer side of the high-temperature-resistant layer is provided with a wear-resistant layer, and a plurality of uniformly distributed connecting blocks are embedded in the sealing ring main body. The sealing ring has good heat resistance and cold resistance, so that the sealing ring can be used in an extreme environment, the service life is prolonged, the wear-resistant layer is made of chloroprene rubber, the wear-resistant layer is located on the surface layer, the oil resistance is extremely good, the wear resistance is high, the heat resistance is good, the bonding force is high, the wear resistance of the sealing ring is effectively improved, and the service life of the sealing ring is prolonged. And the multiple connecting pieces are connected end to end through the connecting blocks to form a polygonal structure, the traction effect is achieved, the connecting pieces have the characteristic of high toughness, and the toughness and the deformation resistance of the sealing ring body can be enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, in particular to a sealing ring with high toughness. Background Art

[0002] Sealing rings are an important component of rubber products. They are currently used in the three major fields of automobiles, electrical appliances and electronics, and office equipment. They are also widely used in high-tech fields such as construction, medical treatment, food industry, aviation, and aerospace. Rubber materials in different fields require different properties.

[0003] The sealing ring is an annular cover composed of one or more parts, fixed on a ring or washer of the bearing and in contact with another ring or washer or forming a narrow labyrinth gap to prevent the leakage of lubricating oil and the invasion of foreign objects. The sealing ring is a rubber ring with a circular cross section. Because its cross section is O-shaped, it is called an O-type sealing ring.

[0004] In the prior art, most of the sealing rings used in hydraulic cylinders in the shipbuilding industry do not have good toughness. During installation and use, the sealing rings may be damaged or cracked due to improper operation by the staff, thereby affecting the normal use of the sealing rings and reducing the sealing effect. At the same time, the surface wear resistance and high temperature resistance of the sealing rings themselves are poor, and the lifespan is short when used in some high temperature environments, which is inconvenient to use. Utility Model Content

[0005] The utility model aims to provide a sealing ring with high toughness, which has the characteristics of high wear resistance, good heat resistance, strong toughness and deformation resistance, good sealing and buffering performance and long service life.

[0006] To achieve the above object, the utility model provides the following technical solutions: a sealing ring with high toughness, comprising a sealing ring body, the sealing ring body comprising a base layer, a high temperature resistant layer is arranged on the outside of the base layer, a wear resistant layer is arranged on the outside of the high temperature resistant layer, a plurality of evenly distributed connecting blocks are embedded in the interior of the sealing ring body, and connecting pieces are fixedly connected between two adjacent connecting blocks;

[0007] The lower end surface of the sealing ring body is fixedly connected with a buffer gasket, and the buffer gasket is a hollow structure and a plurality of inclined and bilaterally symmetrical buffer strips are fixedly connected to the inner bottom end.

[0008] In order to increase the friction between the sealing ring body and the external sealing groove, as a preferred sealing ring with high toughness of the utility model, the inner walls of the two sealing ring bodies are fixedly connected with a plurality of annular edges distributed up and down.

[0009] In order to improve the friction on the upper surface of the sealing ring, as a preferred sealing ring with high toughness of the utility model, the upper end surface of the sealing ring body is fixedly connected with multiple groups of ridges, and the number of ridges in each group is three.

[0010] In order to improve the high temperature resistance and wear resistance of the sealing ring, as a preferred sealing ring with high toughness of the utility model, the base layer is nitrile rubber, the high temperature resistant layer is fluorosilicone rubber, the wear-resistant layer is chloroprene rubber, and the base layer, the high temperature resistant layer and the wear-resistant layer are all bonded to each other by an adhesive.

[0011] In order to facilitate the exhaust of air, as a preferred sealing ring with high toughness of the utility model, the outer side wall of the buffer gasket is provided with air holes.

[0012] In order to improve the toughness and deformation resistance of the sealing ring, as a preferred sealing ring with high toughness of the utility model, the connecting piece is made of one of polycarbonate, polystyrene and polyphenylene ether materials.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The main body of the sealing ring includes a base layer, which is nitrile rubber, with excellent corrosion resistance, tear resistance and compression deformation resistance, good ozone resistance, sunlight resistance and weather resistance, ensuring the basic strength of the sealing ring. The high temperature resistant layer is fluorosilicone rubber, which has good heat resistance and cold resistance, so that the sealing ring can be used in extreme environments and prolong its service life. The wear-resistant layer is chloroprene rubber, which is located on the surface and has excellent oil resistance, high wear resistance, good heat resistance and strong adhesion, which effectively improves the wear resistance of the sealing ring and prolongs its service life.

[0015] A plurality of connecting pieces are embedded in the sealing ring body. The height of the connecting pieces matches the thickness of the sealing ring body. The connecting pieces are connected end to end through the connecting block to form a polygonal structure, which plays a pulling role. The connecting pieces are made of one of polycarbonate, polystyrene and polyphenylene ether materials, all of which have high toughness characteristics and can enhance the toughness and deformation resistance of the sealing ring body.

[0016] The buffer gasket has a hollow structure. After the sealing ring body is installed, the buffer gasket is squeezed and deformed, and the multiple buffer strips inside it are squeezed and deformed as well. The multiple buffer strips and the inner wall of the buffer gasket fit tightly, which on the one hand has a good sealing effect, and on the other hand enhances the thickness to play a role in buffering and shock absorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a sectional view of the overall structure of the utility model from top view;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 This is a top view of the external structure of the utility model as a whole.

[0020] In the figure: 1. Sealing ring body; 2. Base layer; 3. High temperature resistant layer; 4. Wear resistant layer; 5. Connecting block; 6. Connecting piece; 7. Buffer gasket; 8. Buffer strip; 9. Annular edge; 10. Raised edge; 11. Air hole. DETAILED DESCRIPTION

[0021] See also Figures 1 to 3 A sealing ring with high toughness comprises a sealing ring body 1, the sealing ring body 1 comprises a base layer 2, a high temperature resistant layer 3 is arranged on the outside of the base layer 2, a wear resistant layer 4 is arranged on the outside of the high temperature resistant layer 3, a plurality of evenly distributed connecting blocks 5 are embedded in the sealing ring body 1, and connecting pieces 6 are fixedly connected between two adjacent connecting blocks 5;

[0022] The lower end surface of the sealing ring body 1 is fixedly connected with a buffer gasket 7. The buffer gasket 7 is a hollow structure and a plurality of inclined and bilaterally symmetrical buffer strips 8 are fixedly connected to the inner bottom end.

[0023] In this embodiment: the sealing ring body 1 includes a base layer 2, the base layer 2 is nitrile rubber, which has excellent corrosion resistance, tear resistance and compression deformation resistance, and has good ozone resistance, sunlight resistance and weather resistance, ensuring the basic strength of the sealing ring, the high temperature resistant layer 3 is fluorosilicone rubber, which has good heat resistance and cold resistance, so that the sealing ring can be used in extreme environments and prolongs its service life, the wear-resistant layer 4 is chloroprene rubber, the wear-resistant layer 4 is located on the surface, has excellent oil resistance, high wear resistance, good heat resistance, strong adhesion, effectively improves the wear resistance of the sealing ring and prolongs its service life;

[0024] A plurality of connecting pieces 6 are embedded in the sealing ring body 1. The height of the connecting pieces 6 matches the thickness of the sealing ring body 1. The plurality of connecting pieces 6 are connected end to end through the connecting block 5 to form a polygonal structure, which plays a pulling role. The connecting pieces 6 are made of one of polycarbonate, polystyrene and polyphenylene ether materials, all of which have the characteristics of high toughness, and can enhance the toughness and anti-deformation ability of the sealing ring body 1.

[0025] The buffer gasket 7 is a hollow structure. After the sealing ring body 1 is installed, the buffer gasket 7 is squeezed and deformed, and the multiple buffer strips 8 inside it are squeezed and deformed. The multiple buffer strips 8 and the inner wall of the buffer gasket 7 fit tightly, which not only has a good sealing effect, but also enhances the thickness and plays a role in buffering and shock absorption.

[0026] As a technical optimization solution of the utility model, the inner walls of the two sealing ring bodies 1 are fixedly connected with a plurality of annular edges 9 distributed up and down.

[0027] In this embodiment: the inner walls of the two sealing ring bodies 1 are fixedly connected with a plurality of annular edges 9 distributed up and down, so as to increase the friction between the sealing ring bodies 1 and the external sealing grooves, so that the sealing ring bodies 1 are installed more firmly.

[0028] As a technical optimization solution of the utility model, a plurality of groups of convex ribs 10 are fixedly connected to the upper end surface of the sealing ring body 1, and the number of convex ribs 10 in each group is three.

[0029] In this embodiment: multiple groups of ridges 10 are located on the upper end surface of the sealing ring body 1. During installation, friction is generated between the worker's hands and the ridges 10, which increases friction and prevents slipping, making it easier to install and remove the sealing ring.

[0030] As a technical optimization solution of the utility model, the base layer 2 is nitrile rubber, the high temperature resistant layer 3 is fluorosilicone rubber, the wear-resistant layer 4 is chloroprene rubber, and the base layer 2, the high temperature resistant layer 3 and the wear-resistant layer 4 are bonded to each other by an adhesive.

[0031] In this embodiment: the base layer 2, the high temperature resistant layer 3 and the wear resistant layer 4 effectively improve the strength, high temperature resistance and wear resistance of the sealing ring, and extend the service life.

[0032] As a technical optimization solution of the present invention, an air hole 11 is provided on the outer side wall of the buffer gasket 7 .

[0033] In this embodiment, an air hole 11 is provided on the outer wall of the buffer gasket 7 to facilitate the discharge of air when the buffer gasket 7 is squeezed, thereby improving the sealing performance.

[0034] As a technical optimization solution of the utility model, the connecting piece 6 is made of one of polycarbonate, polystyrene and polyphenylene ether.

[0035] In this embodiment, the connecting piece 6 is made of one of polycarbonate, polystyrene and polyphenylene ether materials, all of which have the characteristic of high toughness and can enhance the toughness and anti-deformation ability of the sealing ring body 1 .

[0036] Working principle: The sealing ring body 1 includes a base layer 2, which is nitrile rubber, and has excellent corrosion resistance, tear resistance and compression deformation resistance, and good ozone resistance, sunlight resistance and weather resistance, which ensures the basic strength of the sealing ring. The high temperature resistant layer 3 is fluorosilicone rubber, which has good heat resistance and cold resistance, so that the sealing ring can be used in extreme environments and prolongs its service life. The wear-resistant layer 4 is chloroprene rubber, and the wear-resistant layer 4 is located on the surface layer, which has excellent oil resistance, high wear resistance, good heat resistance, strong adhesion, and effectively improves the wear resistance of the sealing ring and prolongs its service life. A plurality of connecting pieces 6 are embedded in the sealing ring body 1, and the connecting piece 6 The height matches the thickness of the sealing ring body 1. Multiple connecting pieces 6 are connected end to end through the connecting block 5 to form a polygonal structure, which plays a pulling role. The connecting piece 6 is one of polycarbonate, polystyrene and polyphenylene ether materials, all of which have the characteristics of high toughness, and can enhance the toughness and deformation resistance of the sealing ring body 1; the buffer gasket 7 is a hollow structure. After the sealing ring body 1 is installed, the buffer gasket 7 is squeezed and deformed, and the multiple buffer strips 8 inside it are squeezed and deformed. The multiple buffer strips 8 and the inner wall of the buffer gasket 7 are tightly fitted, which has a good sealing effect on the one hand, and enhances the thickness on the other hand to play a role of buffering and shock absorption.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing ring with high toughness, comprising a sealing ring body (1), characterized in that: The sealing ring body (1) comprises a base layer (2), a high temperature resistant layer (3) is arranged on the outside of the base layer (2), a wear resistant layer (4) is arranged on the outside of the high temperature resistant layer (3), a plurality of evenly distributed connecting blocks (5) are embedded in the interior of the sealing ring body (1), and connecting pieces (6) are fixedly connected between two adjacent connecting blocks (5); The lower end surface of the sealing ring body (1) is fixedly connected to a buffer gasket (7); the buffer gasket (7) is a hollow structure and has a plurality of inclined and bilaterally symmetrical buffer strips (8) fixedly connected to the inner bottom end.

2. A sealing ring with high toughness according to claim 1, characterized in that: The inner walls of the two sealing ring bodies (1) are fixedly connected with a plurality of annular edges (9) distributed vertically.

3. A sealing ring with high toughness according to claim 1, characterized in that: The upper end surface of the sealing ring body (1) is fixedly connected to a plurality of groups of ridges (10), and the number of ridges (10) in each group is three.

4. A sealing ring with high toughness according to claim 1, characterized in that: The base layer (2) is made of nitrile rubber, the high temperature resistant layer (3) is made of fluorosilicone rubber, and the wear-resistant layer (4) is made of chloroprene rubber. The base layer (2), the high temperature resistant layer (3) and the wear-resistant layer (4) are bonded to each other by an adhesive.

5. A sealing ring with high toughness according to claim 1, characterized in that: The outer side wall of the buffer gasket (7) is provided with air holes (11).

6. A sealing ring with high toughness according to claim 1, characterized in that: The connecting sheet (6) is made of one of polycarbonate, polystyrene and polyphenylene ether materials.

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