Wear-resistant rubber sealing ring

Abstract

The utility model discloses a wear-resistant rubber sealing ring, which relates to the technical field of rubber sealing rings, and comprises a sealing rubber ring, a groove is arranged above the surface of the sealing rubber ring, an elastic sheet ring is fixedly arranged on the inner surface of the groove, the elastic sheet ring is in a U-shaped ring shape, and the elastic sheet ring is provided with an elastic sheet. A supporting elastic piece is fixedly arranged in the middle of the inner surface of a groove body of the elastic piece ring, the supporting elastic piece is made of elastic stainless steel and is triangular, and a soft rubber ring is fixedly arranged on the upper portion of the inner surface of the elastic piece ring. Compared with an existing common rubber sealing ring, the abrasion-resistant rubber sealing ring has the advantages that the attaching degree of the sealing rubber ring and a workpiece can be improved, the sealing performance is greatly improved, the elastic function of the elastic piece ring is improved and protected through the supporting elastic piece and the soft rubber ring, the sealing performance of the sealing rubber ring is improved in a disguised mode, and therefore the sealing performance of the sealing rubber ring is extremely excellent; and the rigidity of the whole sealing rubber ring is integrally improved, so that the sealing rubber ring is not easy to deform.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber sealing rings, in particular to a wear-resistant rubber sealing ring. Background Art

[0002] Sealing rings can seal the connection parts of objects or machinery to prevent leakage of media. Sealing rings of different materials and shapes can be used in different places. Sealing rings are widely used and can be used in different fields such as hardware and plastics, water supply and drainage, HVAC, fire protection and automobiles.

[0003] For example, the public document with application number 202320560982.4 discloses a fluororubber sealing ring. The utility model arranges a first solid block, a first hollow block, a second solid block and a second hollow block in the fluororubber sealing ring, thereby increasing the contact area between the two fluororubber sealing rings due to deformation caused by mutual extrusion of the two fluororubber sealing rings, thereby improving the sealing between the two fluororubber sealing rings. However, the rubber sealing ring only relies on the elastic force of the rubber ring itself to perform extrusion and sealing, and the elastic tensioning force of the rubber ring itself is limited. When contacting with the periphery of the workpiece ring sleeve, it is difficult to ensure a completely tight fit, and the extrusion friction will cause the sealing ring to wear, resulting in poor sealing.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a wear-resistant rubber sealing ring is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a wear-resistant rubber sealing ring to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant rubber sealing ring, comprising a sealing rubber ring, a groove is opened above the surface of the sealing rubber ring, a spring ring is fixedly installed on the inner surface of the groove, the spring ring is shaped as a "U"-shaped ring, a supporting spring is fixedly arranged in the middle of the inner surface of the groove of the spring ring, the supporting spring is made of elastic stainless steel and is shaped as a triangle, and a soft rubber ring is fixedly arranged above the inner surface of the spring ring.

[0007] Preferably, the outer layer of the sealing rubber ring is configured as a wear-resistant rubber layer, and the outermost layer of the wear-resistant rubber layer is configured as a hydrogenated nitrile rubber layer.

[0008] Preferably, a butyl rubber layer is fixedly provided on the inner side of the hydrogenated nitrile rubber layer, and an elastic rubber layer is fixedly provided on the surface side of the butyl rubber layer away from the hydrogenated nitrile rubber layer.

[0009] Preferably, a vulcanized rubber layer is fixedly disposed on the inner surface of the elastic rubber layer, and the hydrogenated nitrile rubber layer, the butyl rubber layer, the elastic rubber layer and the vulcanized rubber layer are all of the same thickness.

[0010] Preferably, a natural rubber layer is fixedly provided on the inner surface of the vulcanized rubber layer, and the thickness of the natural rubber layer is much greater than the thickness of each layer of the hydrogenated nitrile rubber layer, the butyl rubber layer, the elastic rubber layer and the vulcanized rubber layer.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model provides a spring ring, a supporting spring and a soft rubber ring. The spring ring greatly improves the sealing performance between the sealing rubber ring and the workpiece, and greatly improves the sealing performance. The supporting spring and the soft rubber ring assist in improving the elastic force of the spring ring itself, thereby further improving the elastic force and sealing performance of the sealing rubber ring in a disguised manner.

[0013] 2. The utility model can greatly improve the service life of the sealing rubber ring by setting the wear-resistant rubber layer, hydrogenated nitrile rubber layer, butyl rubber layer and elastic rubber layer, so that the sealing rubber ring has a certain elasticity and toughness, and is also wear-resistant, corrosion-resistant, oil-resistant and acid-alkali-resistant, which greatly increases the application scope of the sealing rubber ring and enhances its practical ability;

[0014] 3. The utility model improves the heat resistance of the sealing rubber ring and further improves the service life of the sealing rubber ring by setting the vulcanized rubber layer and the natural rubber layer. The natural rubber layer itself has elasticity and toughness and is not easy to deform, thereby further improving the shape stability of the sealing rubber ring and the expansion and fitting sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0017] Figure 3 For the utility model Figure 2 The enlarged schematic diagram of the structure at A in the middle;

[0018] Figure 4 This is a schematic diagram of the structure of the wear-resistant rubber layer of the utility model.

[0019] In the figure: 1, sealing rubber ring; 11, wear-resistant rubber layer; 111, hydrogenated nitrile rubber layer; 112, butyl rubber layer; 113, elastic rubber layer; 12, vulcanized rubber layer; 13, natural rubber layer; 2, groove; 3, spring ring; 4, supporting spring; 5, soft rubber ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-Figure 4 As shown, a wear-resistant rubber sealing ring comprises a sealing rubber ring 1, a groove 2 is provided on the surface of the sealing rubber ring 1, a spring ring 3 is fixedly installed on the inner surface of the groove 2, the spring ring 3 is shaped as a "U"-shaped ring, a supporting spring 4 is fixedly provided in the middle of the inner surface of the groove body of the spring ring 3, the supporting spring 4 is made of elastic stainless steel and is shaped as a triangle, and a soft rubber ring 5 is fixedly provided on the inner surface of the spring ring 3.

[0022] By adopting the above technical solution, the spring ring 3 can push the inner and outer sides of the sealing rubber ring 1 to opposite sides, giving the sealing rubber ring 1 a tension force far exceeding its own elasticity, thereby improving the fit between the sealing rubber ring 1 and the workpiece and greatly improving the sealing performance;

[0023] The supporting spring piece 4 can give the spring piece ring 3 an elastic force to expand outward, thereby making the driving force of the spring piece ring 3 greater, and can further assist in enhancing the driving force of the spring piece ring 3 on the sealing rubber ring 1, thereby improving the functionality of the spring piece ring 3;

[0024] The soft rubber ring 5 seals the "U"-shaped opening of the shrapnel ring 3 and isolates the longitudinal shrapnel on both sides to avoid wear of the shrapnel ring 3 caused by excessive extrusion. At the same time, it also provides a certain supporting force for the "U"-shaped opening, further improving the functionality of the shrapnel ring 3.

[0025] Furthermore, the outer layer of the sealing rubber ring 1 is configured as a wear-resistant rubber layer 11 , and the outermost layer of the wear-resistant rubber layer 11 is configured as a hydrogenated nitrile rubber layer 111 .

[0026] By adopting the above technical solution, the hydrogenated nitrile rubber layer 111 has the properties of wear resistance, corrosion resistance, oil resistance, acid and alkali resistance, and can work for a long time under high temperature and high pressure. As the outer layer of the entire sealing rubber ring 1, the service life and wear resistance of the sealing rubber ring 1 are greatly improved.

[0027] Furthermore, a butyl rubber layer 112 is fixedly disposed on the inner side of the hydrogenated nitrile rubber layer 111 , and an elastic rubber layer 113 is fixedly disposed on the surface of the butyl rubber layer 112 away from the hydrogenated nitrile rubber layer 111 .

[0028] By adopting the above technical solution, the butyl rubber layer 112 and the elastic rubber layer 113 enable the sealing rubber ring 1 to have excellent elasticity and toughness, so that the sealing rubber ring 1 can effectively fit the workpiece for sealing.

[0029] Furthermore, the vulcanized rubber layer 12 is fixedly disposed on the inner surface of the elastic rubber layer 113 , and the hydrogenated nitrile rubber layer 111 , the butyl rubber layer 112 , the elastic rubber layer 113 and the vulcanized rubber layer 12 are all of the same thickness.

[0030] By adopting the above technical solution, the vulcanized rubber layer 12 makes the entire sealing rubber ring 1 less likely to soften and become sticky, and improves the heat resistance of the sealing rubber ring 1, further improving the service life of the sealing rubber ring 1;

[0031] The thickness of each layer is the same, so that the texture of the sealing rubber ring 1 is more uniform.

[0032] Furthermore, a natural rubber layer 13 is fixedly disposed on the inner surface of the vulcanized rubber layer 12 , and the thickness of the natural rubber layer 13 is much greater than the thickness of each layer of the hydrogenated nitrile rubber layer 111 , the butyl rubber layer 112 , the elastic rubber layer 113 and the vulcanized rubber layer 12 .

[0033] By adopting the technical solution, the natural rubber layer 13 itself has elasticity and toughness and is not easy to deform, thereby further improving the shape stability of the sealing rubber ring 1. In addition, the natural rubber layer 13 is relatively thick, which can improve the texture of the sealing rubber ring 1.

[0034] Working principle: When using the wear-resistant rubber sealing ring, first, the wear-resistant rubber layer 11 uses the hydrogenated nitrile rubber layer 111 as the outermost layer, adds the butyl rubber layer 112 and the elastic rubber layer 113, and cooperates with the vulcanized rubber layer 12 and the natural rubber layer 13 to form a sealing rubber ring 1, so that the sealing rubber ring 1 itself has excellent elasticity and toughness, and is not easy to be damaged by wear and tear and hot melt adhesion deformation. When using the sealing rubber ring 1, the spring ring 3 can be used to push the inner and outer sides of the sealing rubber ring 1 to the opposite side, giving the sealing rubber ring 1 far more The elastic tension of the spring 4 can improve the fit between the sealing rubber ring 1 and the workpiece, and the supporting spring piece 4 can give the spring ring 3 the elastic force to expand outward, so that the pushing force of the spring ring 3 is greater, which can further assist in improving the pushing force of the spring ring 3 on the sealing rubber ring 1. The "U"-shaped opening of the spring ring 3 is sealed by the soft rubber ring 5, and the longitudinal springs on both sides are isolated to avoid excessive extrusion and wear of the spring ring 3, and also play a certain supporting force on the "U"-shaped opening. This is the working principle of the wear-resistant rubber sealing ring.

Claims

1. A wear-resistant rubber sealing ring, comprising a sealing rubber ring (1), characterized in that: A groove (2) is provided above the surface of the sealing rubber ring (1); a spring ring (3) is fixedly mounted on the inner surface of the groove (2); the spring ring (3) is shaped as a "U"-shaped ring; a supporting spring (4) is fixedly provided in the middle of the inner surface of the groove of the spring ring (3); the supporting spring (4) is made of elastic stainless steel and is shaped as a triangle; a soft rubber ring (5) is fixedly provided above the inner surface of the spring ring (3).

2. A wear-resistant rubber sealing ring according to claim 1, characterized in that: The outer layer of the sealing rubber ring (1) is provided as a wear-resistant rubber layer (11), and the outermost layer of the wear-resistant rubber layer (11) is provided as a hydrogenated nitrile rubber layer (111).

3. A wear-resistant rubber sealing ring according to claim 2, characterized in that: A butyl rubber layer (112) is fixedly disposed on the inner side of the hydrogenated nitrile rubber layer (111), and an elastic rubber layer (113) is fixedly disposed on the surface side of the butyl rubber layer (112) away from the hydrogenated nitrile rubber layer (111).

4. A wear-resistant rubber sealing ring according to claim 3, characterized in that: A vulcanized rubber layer (12) is fixedly disposed on the inner surface of the elastic rubber layer (113); the hydrogenated nitrile rubber layer (111), the butyl rubber layer (112), the elastic rubber layer (113) and the vulcanized rubber layer (12) are all of the same thickness.

5. A wear-resistant rubber sealing ring according to claim 4, characterized in that: A natural rubber layer (13) is fixedly disposed on the inner surface of the vulcanized rubber layer (12), and the thickness of the natural rubber layer (13) is much greater than the thickness of each layer of the hydrogenated nitrile rubber layer (111), the butyl rubber layer (112), the elastic rubber layer (113) and the vulcanized rubber layer (12).

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