A high-elasticity sealing ring for water conservancy pipeline equipment

Abstract

This utility model relates to the field of sealing ring technology, and discloses a high-elasticity sealing ring for hydraulic pipeline equipment, comprising: a sealing ring body, with an annular hollow groove near the inner side and a rebound cavity near the outer side, wherein a memory metal is fixedly placed in the rebound cavity; and a support ring, fixedly disposed on the upper and lower sides of the sealing ring body, having an oblique movable groove thereon. The advantages of this utility model are: the addition of a rebound zone reduces the wear of the sealing ring, and the provision of a matching support ring prevents excessive compression of the sealing ring by gaps.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring technology, specifically to a high-elasticity sealing ring for water conservancy pipeline equipment. Background Technology

[0002] A sealing ring is a ring-shaped sealing element used to prevent fluid leakage or the intrusion of external impurities. It is typically made of elastic or media-resistant materials such as rubber, plastic, or metal. Its working principle involves filling the gap at the sealing interface through its own deformation or external pressure, thereby blocking the flow path of the medium. It is widely used in machinery, pipelines, valves, automobiles, aerospace, and other fields. There are many types, the most common being O-rings, Y-rings, and lip seals. Different types of sealing rings are adapted to different operating conditions, such as temperature, pressure, and media corrosivity, making them key components for ensuring equipment sealing performance, preventing leakage, and guaranteeing the normal operation of the system.

[0003] O-rings are the most widely used type of sealing ring in the field of hydraulic pipelines, but they have significant defects in actual use. Currently, in dynamic sealing, the high-frequency friction generated by the reciprocating motion of O-rings continuously wears down their edges, especially in locations with gaps. Repeated compression under alternating pressure easily leads to lip tearing or cross-sectional damage. This wear is more pronounced in high-pressure fluid systems and mechanical shaft seals, not only causing media leakage but also potentially leading to cascading failures due to localized damage. In gap environments, O-rings are subjected to both shear and compressive forces, accelerating the decline of the elastic material's fatigue resistance. This significantly reduces the sealing reliability of traditional O-rings under high-load conditions, becoming a key bottleneck for the long-term operation of equipment. Utility Model Content

[0004] To solve the above-mentioned problems, this utility model proposes a high-elasticity sealing ring for hydraulic pipeline equipment, which adds a rebound zone to reduce the wear of the sealing ring and has a matching support ring to prevent excessive compression of the sealing ring by gaps.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is: a high-elasticity sealing ring for water conservancy pipeline equipment, comprising:

[0006] The sealing ring body has an annular hollow groove near the inner side and a spring-loaded cavity near the outer side, and a memory metal is fixedly placed in the spring-loaded cavity;

[0007] The support ring is fixed on the upper and lower sides of the sealing ring body, and has an oblique movable groove on it.

[0008] Furthermore, the cross-section of the annular hollow groove is elliptical.

[0009] Furthermore, the upper and lower edges of the outer wall of the sealing ring body are both arc-shaped surfaces, and two rebound cavities are symmetrically provided on the upper and lower sides of the sealing ring body, and are arc-shaped cavities that match the arc-shaped surfaces.

[0010] Furthermore, the support ring is made of a flexible, rigid material.

[0011] Furthermore, the inclined movable slots on the upper and lower sides are inclined in the same direction and are distributed radially along the sealing ring body.

[0012] Furthermore, the sidewall of the support ring is provided with an anti-corrosion and wear-resistant coating.

[0013] Compared with existing technologies, the advantages of this invention are as follows: The rebound zone added inside the sealing ring incorporates memory metal. Under pipeline pressure, the rebound zone can flexibly deform and quickly return to its original shape, reducing frictional loss caused by repeated compression, effectively reducing the wear of the sealing ring, and extending its service life. The matching support ring is made of a flexible and rigid material, which not only provides flexibility during installation, conforming to the shape of the pipeline, but also provides stable support during use. When the pipeline compresses the sealing ring, the support ring resists external pressure with its own strength, preventing excessive compression of the sealing ring by gaps, which could lead to deformation and damage. At the same time, the design of the slanted movable groove further optimizes the deformation and adaptation capabilities of the support ring, ensuring uniform stress on the sealing ring and improving sealing performance and structural stability. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is a bottom view of the present invention;

[0017] Figure 4 This is the front view of this utility model;

[0018] Figure 5 This is a cross-sectional view of the main body of the sealing ring of this utility model.

[0019] As shown in the figure: 1. Sealing ring body; 2. Annular hollow groove; 3. Springback cavity; 4. Shape memory metal; 5. Support ring; 6. Angled movable groove. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] Combined with appendix Figure 5A high-elasticity sealing ring for water conservancy pipeline equipment includes: a sealing ring body 1, with an annular hollow groove 2 provided inside near the inner side. The annular hollow groove 2 has an elliptical cross-section, which can improve the degree of deformation and enhance the sealing effect. At the same time, it is easier to deform and rebound under pressure.

[0022] Combined with appendix Figure 5 The sealing ring body 1 has a rebound cavity 3 near the outer side inside. The rebound cavity 3 is fixed with memory metal 4. The upper and lower edges of the outer wall of the sealing ring body 1 are arc-shaped surfaces. There are two rebound cavities 3 symmetrically arranged on the upper and lower sides of the sealing ring body 1. They are arc-shaped cavities that match the arc-shaped surfaces, which fit the stress state of the pipeline, so that the memory metal 4 in the rebound cavity 3 is subjected to uniform force and enhances the overall rebound performance.

[0023] Combined with appendix Figure 1 Appendix Figure 4 The support ring 5 is fixedly installed on the upper and lower sides of the sealing ring body 1. The support ring 5 is made of a flexible and rigid material, which can flexibly adapt to the pipeline during installation and provide reliable support to ensure the stability of the sealing ring. The side wall of the support ring 5 is provided with an anti-corrosion and wear-resistant coating, which can resist the erosion and friction of the water environment and extend the service life of the support ring 5 and the entire sealing ring.

[0024] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 3 The support ring 5 is provided with an inclined movable groove 6. The inclined movable grooves 6 on the upper and lower sides are inclined in the same direction and are distributed radially along the sealing ring body 1, which is conducive to the deformation adjustment of the support ring 5 during pipeline installation, ensuring that the sealing ring is installed accurately and evenly, and has a good support effect.

[0025] The specific implementation of this utility model is as follows: The sealing ring body 1 is fitted onto the pipe connection. Because the support ring 5 is made of a flexible, rigid material and has an oblique movable groove 6 on its side wall, during installation, the support ring 5 can flexibly adapt to the pipe and deform along the oblique movable groove 6 to ensure precise installation of the sealing ring. When the pipe is pressured during connection, the annular hollow groove 2 near the inner side of the sealing ring body 1 increases the deformation degree of the sealing ring body 1, improving the sealing and buffering effect, and also allows for rapid rebound after deformation under pressure. The rebound cavity 3 located near the outer side inside the sealing ring body 1 contains a built-in shape memory metal 4. When subjected to pipe pressure, the rebound cavity 3 conforms to the pipe's stress state, ensuring uniform stress on the shape memory metal 4, enhancing overall rebound performance, and reducing sealing ring wear. Furthermore, the support ring 5 provides reliable support, preventing the sealing ring body 1 from being squeezed, deformed, or damaged at the connection edge. Its anti-corrosion and wear-resistant coating on its side wall also resists erosion and friction from the hydraulic environment, ensuring long-term stable operation of the sealing ring.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; for those skilled in the art, the specific meaning of the above term in this utility model can be understood according to the specific circumstances.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A high-elasticity sealing ring for hydraulic pipeline equipment, characterized in that, include: The sealing ring body (1) has an annular hollow groove (2) near the inner side and a spring-loaded cavity (3) near the outer side. The spring-loaded cavity (3) is fixed with memory metal (4). The support ring (5) is fixed on the upper and lower sides of the sealing ring body (1), and has an oblique movable groove (6) on it.

2. The high-elasticity sealing ring for water conservancy pipeline equipment according to claim 1, characterized in that: The cross-section of the annular hollow groove (2) is elliptical.

3. The high-elasticity sealing ring for water conservancy pipeline equipment according to claim 1, characterized in that: The upper and lower edges of the outer wall of the sealing ring body (1) are both arc-shaped surfaces. The rebound cavity (3) is provided symmetrically on the upper and lower sides of the sealing ring body (1), and is an arc-shaped cavity matching the arc-shaped surface.

4. The high-elasticity sealing ring for water conservancy pipeline equipment according to claim 1, characterized in that: The support ring (5) is made of a flexible rigid material.

5. A high-elasticity sealing ring for water conservancy pipeline equipment according to claim 1, characterized in that: The inclined movable slots (6) on the upper and lower sides are inclined in the same direction and are distributed radially along the sealing ring body (1).

6. A high-elasticity sealing ring for water conservancy pipeline equipment according to claim 1, characterized in that: The side wall of the support ring (5) is provided with an anti-corrosion and wear-resistant coating.

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