High-temperature-resistant and wear-resistant sealing ring with composite structure

Abstract

The utility model discloses a high-temperature-resistant wear-resistant sealing ring with a composite structure, which comprises a first sealing ring with an annular structure, an upper clamping groove and a lower clamping groove are arranged on the inner side of the first sealing ring, and an annular second sealing ring matched with the first sealing ring is arranged on the outer side of the first sealing ring. The second sealing ring is arranged to be a composite material which is divided into a net-shaped layer, a buffering layer and a wear-resisting layer, an inwards-sunken mounting groove is formed in the outer surface of the first sealing ring, a detachable mounting structure is formed between the second sealing ring and the mounting groove, and supporting columns which are evenly arranged at equal intervals are fixedly mounted on the inner side wall of the mounting groove. And the first sealing ring is made of a high-temperature-resistant fluororubber material. According to the high-temperature-resistant and wear-resistant sealing ring of the composite structure, the supporting column is fixedly mounted in the first sealing ring, and the supporting column is made of a hard rubber material, so that the basic shape of the first sealing ring can be supported by the supporting column, and the situation that the sealing effect is affected due to deformation caused by extrusion in the using process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, in particular to a high-temperature resistant and wear-resistant sealing ring with a composite structure. Background Technique

[0002] A sealing ring is a component used to prevent liquid or gas leakage. It is usually made of rubber, plastic or metal materials and is widely used in mechanical equipment, pipeline connections, hydraulic systems, automobiles, household appliances and other fields;

[0003] During the use of the sealing ring, due to different environments, such as high-temperature and high-wear environments, the service life of traditional sealing rings is very short.

[0004] To solve the above problems, in the prior art, a Chinese patent with the publication number of CN111720543A discloses a composite elastic rubber sealing ring structure. The middle main ring is made of non-expanded rubber, and its cross-section adopts an M-shaped structure. It is provided with an outer sealing groove and an inner sealing groove. There are circumferentially extending annular holes in the middle of the left and right wings. The outer ring and the inner ring are both made of water-swellable rubber. The inner side of the outer ring fits into the outer sealing groove of the middle main ring, and the two form a sealed connection. The outer side of the inner ring fits into the inner sealing groove of the middle main ring, and the two form a sealed connection. After assembly, the outer diameter of the outer ring is the same as that of the middle main ring, and the inner diameter of the inner ring is the same as that of the middle main ring. When pressed, the contact effect can be effectively increased. After encountering water, the outer ring and the inner ring expand, making the contact surface fit more tightly, and the waterproof performance is good; and it can reduce the assembly force and is convenient for assembly.

[0005] As can be seen from the above, the prior art generally uses the form of composite materials to achieve the purpose of improving the use effect of the sealing ring. However, in the actual use process, the sealing ring needs to be in close contact with the equipment, and deformation may occur during the long-term extrusion process. The deformed sealing ring will affect its overall sealing effect. Content of the Utility Model

[0006] The purpose of the utility model is to provide a high-temperature resistant and wear-resistant sealing ring with a composite structure to solve the problem that the sealing effect is affected by the deformation of the sealing ring proposed in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A high-temperature resistant and wear-resistant sealing ring with a composite structure, including a first sealing ring in a ring structure. There are two upper and lower engaging grooves opened on the inner side of the first sealing ring. It also includes:

[0008] An annular second sealing ring is arranged on the outer side of the first sealing ring and is matched with it. The second sealing ring is set as a composite material divided into three parts: a mesh layer, a buffer layer and a wear-resistant layer;

[0009] The outer surface of the first sealing ring is provided with an inwardly recessed installation groove, and a dismountable installation structure is formed between the second sealing ring and the installation groove;

[0010] Support columns are fixedly installed on the inner side wall of the installation groove at equal intervals and are evenly arranged.

[0011] Preferably, the first sealing ring is made of heat-resistant fluororubber material.

[0012] Preferably, the mesh layer is a nylon wire braided structure, the buffer layer is made of high-elastic rubber material, and the wear-resistant layer is made of polyurethane material.

[0013] Preferably, positioning grooves are formed on the upper and lower sides of the second sealing ring, and the positioning grooves are in corresponding snap-fit connection with positioning balls fixedly installed on the inner wall of the installation groove.

[0014] Preferably, a through hole is formed in the middle of the first sealing ring, and the through holes are evenly distributed at equal intervals.

[0015] Preferably, the support columns are made of hard rubber material.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: The heat-resistant and wear-resistant sealing ring with a composite structure adopts a new structural design, and the specific content is as follows:

[0017] 1. The first sealing ring is fixedly installed in the equipment to be sealed through the engaging groove. At this time, the first sealing ring and the second sealing ring are used to closely adhere to the equipment to achieve an effective sealing effect;

[0018] Furthermore, the second sealing ring is a composite material composed of a mesh layer, a buffer layer, and a wear-resistant layer. The mesh layer can provide a pulling effect on it to avoid tearing, the high elasticity of the buffer layer can achieve a better fitting effect, the wear-resistant layer improves the overall service life, and at the same time, the overall polyurethane material of the first sealing ring has a good heat-resistant effect;

[0019] Even further, the second sealing ring is installed in the first sealing ring through the installation groove, and the two are fixed through the snap-fit between the positioning groove and the positioning ball. When the loss is not large, the two can be disassembled and only one of them can be replaced, reducing waste.

[0020] 2. Support columns are fixedly installed inside the first sealing ring. Since the support columns are made of hard rubber material, the support columns can support the basic shape of the first sealing ring to avoid deformation due to extrusion during use and affect the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1Schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 Schematic diagram of the cross-sectional structure of the first sealing ring of the present utility model;

[0023] Figure 3 For the present utility model Figure 2 Enlarged structure diagram at position A in;

[0024] Figure 4 Schematic diagram of the structure of the first sealing ring of the present utility model;

[0025] Figure 5 For the present utility model Figure 4 Enlarged structure diagram at position B in;

[0026] Figure 6 Exploded structure diagram of the second sealing ring of the present utility model.

[0027] In the figure: 1. First sealing ring; 2. Engaging groove; 3. Second sealing ring; 301. Mesh layer; 302. Buffer layer; 303. Wear-resistant layer; 4. Installation groove; 5. Positioning groove; 6. Positioning ball; 7. Through hole; 8. Support column. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment 1: Please refer to Figures 1 - 2 and Figure 6 , in order to solve the problem of poor use effect due to the single material of the ordinary sealing ring, the following technical solutions are provided. The sealing ring is set as a composite material, and specifically disclosed: a first sealing ring 1 in an annular structure, with two engaging grooves 2 opened on the inner side of the first sealing ring 1, and an annular second sealing ring 3 matching with it is arranged on the outer side of the first sealing ring 1. The second sealing ring 3 is set as a composite material divided into three parts: a mesh layer 301, a buffer layer 302, and a wear-resistant layer 303. The mesh layer 301 is a nylon wire braided structure, the buffer layer 302 is made of high-elastic rubber material, and the wear-resistant layer 303 is made of polyurethane material. The first sealing ring 1 is made of high-temperature-resistant fluororubber material.

[0030] When using the sealing ring, first install the second sealing ring 3 correspondingly into the installation groove 4 opened on the side of the first sealing ring 1. Then, use the clamping groove 2 to fixedly clamp and install the first sealing ring 1 into the equipment to be sealed. At this time, the polyurethane material of the first sealing ring 1 can achieve the effect of high temperature resistance. At the same time, the wear-resistant layer 303 on the outermost side of the second sealing ring 3 reduces wear during use and improves the overall service life.

[0031] Embodiment 2: Please refer to Figure 3 , in order to reduce material waste during replacement in this embodiment, the following technical solution is provided. The whole is set as two detachable and installable parts, which can be replaced according to the actual situation. Specifically disclosed: An inwardly concave installation groove 4 is opened on the outer surface of the first sealing ring 1, and a detachable installation structure is formed between the second sealing ring 3 and the installation groove 4. Positioning grooves 5 are opened on the upper and lower sides of the second sealing ring 3, and the positioning grooves 5 are correspondingly clamped and connected with positioning balls 6 fixedly installed on the inner wall of the installation groove 4. A through hole 7 is opened in the middle of the first sealing ring 1, and the through holes 7 are evenly distributed at equal intervals.

[0032] When the second sealing ring 3 is installed inside the installation groove 4, the positioning grooves 5 on the upper and lower sides of the second sealing ring 3 are correspondingly clamped with the positioning balls 6 on the inner wall of the installation groove 4, so as to fix the second sealing ring 3. This structure enables the second sealing ring 3 and the first sealing ring 1 to be disassembled and replaced separately, which can reduce waste compared with overall replacement.

[0033] Embodiment 3: Please refer to Figure 4 and Figure 5 , in order to solve the problem of poor use effect due to single material of ordinary sealing rings in this embodiment, the following technical solution is provided. The sealing ring is set as a composite material. Specifically disclosed: Support columns 8 are fixedly installed on the inner side wall of the installation groove 4 at equal intervals and evenly arranged, and the support columns 8 are made of hard rubber material.

[0034] Support columns 8 are fixedly installed inside the first sealing ring 1. The hard rubber material of the support columns 8 is used to support the first sealing ring 1, so as to maintain the basic shape of the first sealing ring 1 and avoid affecting the sealing effect due to deformation during use.

[0035] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 therefore cannot be construed as a limitation on the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0036] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A composite high temperature and wear resistant sealing ring, comprising a first sealing ring (1) in an annular structure, wherein the first sealing ring (1) has two upper and lower engaging grooves (2) formed inside, characterized in that: Also includes: A matching annular second sealing ring (3) is arranged outside the first sealing ring (1); the second sealing ring (3) is configured as a composite material consisting of a mesh layer (301), a buffer layer (302) and a wear-resistant layer (303); The outer surface of the first sealing ring (1) is provided with an inwardly recessed installation groove (4), and a disassembly and installation structure is formed between the second sealing ring (3) and the installation groove (4); The inner side wall of the installation groove (4) is fixedly mounted with support columns (8) that are evenly spaced.

2. A high temperature and wear resistant sealing ring of a composite structure according to claim 1, characterized in that: The first sealing ring (1) is made of high temperature resistant fluororubber material.

3. The high temperature and wear resistant sealing ring of the composite structure according to claim 1, characterized in that: The mesh layer (301) is a nylon wire braided structure, the buffer layer (302) is made of a high-elasticity rubber material, and the wear-resistant layer (303) is made of a polyurethane material.

4. The high temperature and wear resistant sealing ring of the composite structure according to claim 1, characterized in that: The second sealing ring (3) is provided with positioning grooves (5) on both upper and lower sides, and the positioning grooves (5) are correspondingly engaged with positioning balls (6) fixedly mounted on the inner wall of the mounting groove (4).

5. The high temperature and wear resistant sealing ring of the composite structure according to claim 1, characterized in that: A through hole (7) is provided in the middle of the first sealing ring (1), and the through holes (7) are evenly distributed at equal intervals.

6. The high temperature and wear resistant sealing ring of the composite structure according to claim 1, characterized in that: The support column (8) is made of hard rubber material.

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