O-shaped sealing ring with self-sealing structure

Abstract

The utility model relates to the technical field of O-shaped sealing rings, and discloses an O-shaped sealing ring with a self-sealing structure, which comprises an O-shaped sealing ring main body, an annular groove is arranged on the middle side in the O-shaped sealing ring main body, a spring piece is fixedly connected to the inward side in the annular groove, a plurality of V-shaped plates are fixedly connected to the outer part of the spring piece at equal intervals, and the V-shaped plates are fixedly connected to the inner part of the annular groove. The outer portions of the V-shaped plates are fixedly connected with arc plates, a stainless steel metal net is arranged in the O-shaped sealing ring body, butadiene styrene rubber is arranged on the outer side of the stainless steel metal net, and silicon rubber is arranged on the outer side of the butadiene styrene rubber. According to the O-shaped sealing ring, the V-shaped plate and other structures are matched, the annular groove, the spring piece and the V-shaped plate with the arc plate are arranged in the O-shaped sealing ring body, sealing pressure can be increased, and leakage can be prevented. The main body is fluororubber, butadiene styrene rubber, silicone rubber, a polyurethane check ring and an internal stainless steel metal net are arranged outside, compression resistance and abrasion resistance are enhanced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of O-ring seals, in particular to an O-ring seal with a self-sealing structure. Background Art

[0002] The O-ring seal is a sealing element widely used in industries such as industry, automobiles, aerospace, etc. Its background technology originated from the development of sealing technology in the early 20th century. Its unique ring structure and circular cross-section design enable it to evenly fill the gaps between the sealing surfaces when compressed, effectively preventing the leakage of liquids or gases. The O-ring seal is usually made of elastic materials such as rubber or synthetic materials, which provide good elasticity and wear resistance, ensuring the reliable performance of the seal under various working conditions. With the progress of material science and manufacturing processes, the performance of the O-ring seal has been continuously improved to meet increasingly stringent industrial requirements;

[0003] The O-ring seal is widely used in equipment such as pumps, valves, hydraulic cylinders, and pneumatic devices. Its structure is an annular elastomer, usually made of rubber or synthetic materials, with a circular cross-section. The working principle is that when the O-ring seal is installed in the sealing groove of the equipment and compressed, its elastic material will evenly fill the gaps between the sealing surfaces, thereby forming an effective sealing barrier to prevent the leakage of liquids or gases and ensure the normal operation of the equipment;

[0004] The O-ring seal is prone to leakage due to poor sealing, which affects the operation of the equipment, causes waste of resources and environmental pollution; and the O-ring seal has poor compressive and wear resistance and is easy to break, which will cause the seal to deform and break, affect the normal operation and working efficiency of the equipment, shorten the service life, increase costs and affect the production progress. Therefore, an O-ring seal with a self-sealing structure is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides an O-ring seal with a self-sealing structure, aiming to improve the problems in the prior art that the O-ring seal has poor sealing and is prone to leakage, affecting the operation of the equipment, wasting resources and polluting the environment; and has poor compressive and wear resistance and is easy to break, affecting the efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: an O-ring seal with a self-sealing structure, including an O-ring seal main body, a ring groove is opened in the middle side of the inside of the O-ring seal main body, a spring piece is fixedly connected to the inner side of the ring groove, a plurality of V-shaped plates are fixedly connected to the outside of the spring piece at equal intervals, and arc plates are fixedly connected to the outside of the V-shaped plates;

[0007] As a further description of the above technical solution: a stainless steel metal mesh is arranged inside the O-ring main body, styrene-butadiene rubber is arranged outside the stainless steel metal mesh, and silicone rubber is arranged outside the styrene-butadiene rubber;

[0008] As a further description of the above technical solution: a plurality of retaining rings are equidistantly arranged outside the silicone rubber, and the retaining rings are made of polyurethane;

[0009] As a further description of the above technical solution: the O-ring main body is made of fluororubber;

[0010] As a further description of the above technical solution: the arc plate is in contact with the inside of the O-ring main body.

[0011] The utility model has the following beneficial effects:

[0012] 1. In the utility model, through the cooperation of structures such as the V-shaped plate, a ring groove is opened inside the O-ring main body, a spring piece is fixed in the ring groove, and a V-shaped plate with an arc plate is arranged outside the spring piece. When the O-ring main body is subjected to external pressure, the V-shaped plate with the arc plate will generate an elastic deformation force, prompting the O-ring main body to expand outwards, thereby increasing the sealing pressure. When the external pressure disappears, the V-shaped plate with the arc plate will return to its original state, enabling the sealing ring to return to the initial state, which can effectively solve the problems that the O-ring is prone to poor sealing, resulting in leakage, affecting the operation of equipment, causing waste of resources and environmental pollution.

[0013] 2. In the utility model, through the cooperation of structures such as the O-ring main body, the O-ring main body is made of fluororubber, which has properties such as high temperature resistance and chemical corrosion resistance, and can ensure reliable sealing. The external styrene-butadiene rubber provides protection for the sealing ring and enhances the strength; the silicone rubber not only has elasticity but also can buffer temperature changes; the polyurethane retaining ring enhances the structural stability and wear resistance; the internal stainless steel metal mesh greatly improves the strength and compressive capacity of the sealing ring. To solve the problems of poor compressive and wear resistance and easy fracture of the O-ring, and extend the service life of the sealing ring. Description of the Drawings

[0014] Figure 1 It is the overall structure diagram of the O-ring with a self-sealing structure proposed by the utility model;

[0015] Figure 2 It is the upper sectional view of the O-ring with a self-sealing structure proposed by the utility model;

[0016] Figure 3 It is the front sectional view of the O-ring with a self-sealing structure proposed by the utility model.

[0017] Legend Explanation:

[0018] 1. O-ring seal body; 2. Retaining ring; 3. Groove; 4. V-shaped plate; 5. Arc plate; 6. Spring piece; 7. Fluoroelastomer; 8. Stainless steel metal mesh; 9. Styrene-butadiene rubber; 10. Polyurethane; 11. Silicone rubber. Specific embodiments

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Refer to Figures 1-3 , an embodiment provided by the present invention: an O-ring seal with a self-sealing structure, including an O-ring seal body 1. A groove 3 is opened in the middle of the inside of the O-ring seal body 1. A spring piece 6 is fixedly connected to the inner side of the groove 3 facing inward. A plurality of V-shaped plates 4 are fixedly connected to the outside of the spring piece 6 at equal intervals. Arc plates 5 are fixedly connected to the outside of the V-shaped plates 4. A stainless steel metal mesh 8 is arranged inside the O-ring seal body 1. Styrene-butadiene rubber 9 is arranged on the outside of the stainless steel metal mesh 8. Silicone rubber 11 is arranged on the outside of the styrene-butadiene rubber 9. A plurality of retaining rings 2 are arranged on the outside of the silicone rubber 11 at equal intervals. The material of the retaining ring 2 is polyurethane 10. The material of the O-ring seal body 1 is fluoroelastomer 7. The arc plate 5 is in contact with the inside of the O-ring seal body 1.

[0021] First, a groove 3 is opened inside the O-ring seal body 1, and a spring piece 6 is fixed in the groove 3. V-shaped plates 4 with arc plates 5 are arranged on the outside of the spring piece 6. When the O-ring seal body 1 is subjected to external pressure, the V-shaped plates 4 with arc plates 5 will generate elastic deformation force, prompting the O-ring seal body 1 to expand outward, thereby increasing the sealing pressure. When the external pressure disappears, the V-shaped plates 4 with arc plates 5 will return to their original state, making the seal return to the initial state to ensure sealing; and the O-ring seal body 1 is made of fluoroelastomer 7, which has properties such as high temperature resistance and chemical corrosion resistance, and can ensure reliable sealing. The external styrene-butadiene rubber 9 provides protection for the seal and enhances the strength; the silicone rubber 11 not only has elasticity but also can buffer temperature changes; the polyurethane retaining ring 10 enhances the structural stability and wear resistance; the internal stainless steel metal mesh 8 greatly improves the strength and compressive capacity of the seal and extends the service life of the seal.

[0022] Working principle: First, a ring groove 3 is formed inside the O-ring main body 1, a spring piece 6 is fixed in the ring groove 3, and a V-shaped plate 4 with an arc plate 5 is arranged on the outer side of the spring piece 6. When the O-ring main body 1 is subjected to external pressure, the V-shaped plate 4 with the arc plate 5 will generate an elastic deformation force, prompting the O-ring main body 1 to expand outwards, thereby increasing the sealing pressure. When the external pressure disappears, the V-shaped plate 4 with the arc plate 5 will return to its original state, making the sealing ring return to the initial state to ensure sealing; and the O-ring main body 1 is made of fluororubber 7, which has properties such as high temperature resistance and chemical corrosion resistance, and can ensure reliable sealing. The external styrene-butadiene rubber 9 provides protection for the sealing ring and enhances its strength; the silicone rubber 11 not only has elasticity but also can buffer temperature changes; the polyurethane retaining ring 10 enhances the structural stability and wear resistance; the internal stainless steel wire mesh 8 greatly improves the strength and compressive capacity of the sealing ring and extends the service life of the sealing ring.

[0023] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An O-ring with a self-sealing structure, comprising an O-ring body (1), characterized in that: An annular groove (3) is provided in the middle of the inner side of the O-ring body (1); a spring sheet (6) is fixedly connected to the inner side of the annular groove (3); a plurality of V-shaped plates (4) are fixedly connected to the outer side of the spring sheet (6) at equal intervals; and arc plates (5) are fixedly connected to the outer side of each of the V-shaped plates (4).

2. The O-ring with a self-sealing structure according to claim 1, characterized in that: A stainless steel metal mesh (8) is arranged inside the O-ring body (1), styrene-butadiene rubber (9) is arranged outside the stainless steel metal mesh (8), and silicone rubber (11) is arranged outside the styrene-butadiene rubber (9).

3. The O-ring with a self-sealing structure according to claim 2, characterized in that: A plurality of retaining rings (2) are equidistantly arranged on the outside of the silicone rubber (11), and the retaining rings (2) are made of polyurethane (10).

4. The O-ring with a self-sealing structure according to claim 1, characterized in that: The material of the O-ring body (1) is fluororubber (7).

5. The O-ring with a self-sealing structure according to claim 1, characterized in that: The arc plate (5) is in contact with the interior of the O-ring body (1).

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