Valve seat sealing ring with buffer structure

Abstract

The utility model discloses a valve seat sealing ring with a buffer structure, relates to the technical field of valve sealing, and aims to solve the technical problems that the current sealing ring lacks an effective buffer structure when being impacted by fluid pressure, the sealing ring is easy to deform and damage, the sealing effect is reduced, and leakage is caused. A plurality of buffer cavities used for being filled with hydraulic oil are constructed in the sealing ring, a plurality of partition blocks used for dividing flow channels of the buffer cavities are arranged in the buffer cavities in an array mode, an air cushion is fixedly installed at the top of the sealing ring, and a buffer pad used for protecting the air cushion is further fixedly arranged at the top of the sealing ring. The hydraulic oil is filled in the buffer cavity in the sealing ring and is matched with the separation blocks and the rhombic liquid flowing holes, when the valve seat is impacted by pressure, the hydraulic oil flows through the liquid flowing holes in the flow channels divided by the separation blocks, and the sealing ring has the advantages that the buffer effect of the sealing ring is improved, the compressive deformation resilience strength is enhanced, and the sealing ring is not prone to deformation and damage.

Description

Technical Field

[0001] This utility model relates to the field of valve sealing technology, and more specifically, to a valve seat sealing ring with a buffer structure. Background Technology

[0002] In various fluid transport systems, valve seat seals play a crucial sealing role, and their sealing performance directly affects the safety and stability of the system.

[0003] However, current valve seat seals on the market have many problems. Traditional valve seat seals lack an effective buffer structure when subjected to fluid pressure impacts, which can easily lead to deformation and damage of the seal, thereby reducing the sealing effect and causing leakage. In view of this, we propose a valve seat seal with a buffer structure. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a valve seat sealing ring with a buffer structure to solve the technical problem that the current sealing ring lacks an effective buffer structure when subjected to fluid pressure impact, which easily leads to deformation and damage of the sealing ring, thereby reducing the sealing effect and causing leakage.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a valve seat sealing ring with a buffer structure, comprising a sealing ring, wherein the internal structure of the sealing ring has a plurality of buffer chambers for filling hydraulic oil, wherein a plurality of partition blocks for dividing the flow channels of the buffer chambers are arranged in an array inside the buffer chambers, wherein an air cushion is fixedly installed on the top of the sealing ring, and a buffer pad for protecting the air cushion is also fixedly installed on the top of the sealing ring, and the surface shape of the buffer pad is arc-shaped;

[0006] Each of the partition blocks has a flow hole on its side wall, and the flow hole is rhomboid in shape.

[0007] This invention uses a buffer chamber inside the sealing ring filled with hydraulic oil, along with a separator block and diamond-shaped flow holes. When the valve seat is subjected to pressure impact, the hydraulic oil flows through the flow holes in the flow channels divided by the separator block. The unique shape of the diamond-shaped flow holes creates a damping effect on the hydraulic oil flow, effectively absorbing and dispersing the impact force to achieve buffering and shock absorption. At the same time, the air cushion, buffer pad, and elastic cotton at the top form a multi-level buffer system, which can significantly improve the sealing ring's ability to cope with pressure impact, reduce the probability of deformation and damage, and maintain good sealing performance.

[0008] Preferably, the air cushion includes an outer skin, the inner structure of which has an air cavity, and the sides of the outer skin adjacent to the air cavity are all constructed with wavy extension surfaces.

[0009] Preferably, the top of the sealing ring is provided with a limiting groove for limiting the position of the air cushion, and the surface shape of the limiting groove is the same as the shape of the extension surface.

[0010] Preferably, elastic cotton is filled between the cushioning pad and the air cushion, and the elastic cotton has a honeycomb structure inside.

[0011] Preferably, each of the buffer cavities and the partition block has a hexagonal cross-sectional shape, and the partition block is made of elastic rubber.

[0012] Preferably, the distance between the upper and lower corners of the flow hole is greater than the distance between the two side corners, and the corners of the flow hole are all rounded.

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

[0014] 1. This utility model uses a buffer chamber inside the sealing ring filled with hydraulic oil. Combined with the partition block and the diamond-shaped flow hole, when the valve seat is subjected to pressure impact, the hydraulic oil flows through the flow hole in the flow channel divided by the partition block. The unique shape of the diamond-shaped flow hole generates a damping effect on the flow of hydraulic oil, effectively absorbing and dispersing the impact force, and achieving buffering and shock absorption. At the same time, the air cushion, buffer pad and elastic cotton at the top form a multi-level buffer system, which can significantly improve the sealing ring's ability to cope with pressure impact, reduce the probability of deformation and damage, and maintain good sealing performance.

[0015] 2. This utility model further buffers pressure by using an air chamber and a wavy extended surface that deform under pressure. The arc-shaped design of the buffer pad fits the force-bearing surface, increasing the buffer area. The honeycomb structure inside the elastic cotton enhances its elasticity. The wavy extended surface design effectively improves the deformation effect under pressure and provides good resilience. The hexagonal buffer chamber and partition block design make the internal structure of the sealing ring compact and the force evenly distributed. The diamond-shaped flow hole can automatically adjust its diameter under different pressures, changing the flow rate of hydraulic oil in the buffer chamber and buffering the squeezing force. This allows the sealing ring to better fit the valve seat surface under pressure, reducing gaps and improving the sealing effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0018] Figure 3 for Figure 2 Enlarged structural diagram of section A;

[0019] Figure 4 This is a cross-sectional schematic diagram of the air cushion structure in this utility model;

[0020] Figure 5 This is an exploded view of the structure of this utility model;

[0021] Figure 6 This is a schematic diagram of one usage state of the present invention.

[0022] The following are the labels in the diagram: 1. Sealing ring; 2. Buffer chamber; 3. Separator block; 301. Flow hole; 4. Limiting groove; 5. Air cushion; 501. Outer skin; 502. Air chamber; 503. Extension surface; 6. Buffer pad; 7. Elastic cotton. Detailed Implementation

[0023] like Figures 1 to 6 As shown, this utility model relates to a valve seat sealing ring with a buffer structure, including a sealing ring 1. The internal structure of the sealing ring 1 has several buffer chambers 2 for filling hydraulic oil. Several partition blocks 3 for dividing the flow channels of the buffer chambers 2 are arranged in an array inside the buffer chambers 2. An air cushion 5 is fixedly installed on the top of the sealing ring 1, and a buffer pad 6 for protecting the air cushion 5 is also fixedly installed on the top of the sealing ring 1. The surface shape of the buffer pad 6 is arc-shaped. The design of the buffer chambers 2 can squeeze the internal hydraulic oil to flow when compressed, thereby absorbing the pressure energy and achieving a good buffering effect. The cooperation between the air cushion 5 and the buffer pad 6 can achieve multiple buffering effects. The air cushion 5 can produce a large elastic deformation when subjected to pressure, while the arc-shaped buffer pad 6 can evenly distribute the pressure, avoid excessive local pressure, and at the same time protect the air cushion 5 from damage by sharp objects.

[0024] Each partition block 3 has a flow hole 301 on its side wall, and the flow hole 301 is rhomboid in shape. The design of the flow hole 301 can enhance the elastic expansion and contraction strength of the partition block 3, and the rhomboid design can change the diameter when the partition block 3 contracts. Under different pressures, it can automatically change the flow rate of hydraulic oil and further improve the buffering and energy absorption effect.

[0025] In an embodiment of this utility model, the air cushion 5 includes an outer skin 501, the inner structure of which has an air cavity 502, and the sides of the outer skin 501 adjacent to the air cavity 502 are all constructed with wavy extension surfaces 503; the extension surfaces 503 designed on the sides of the air cavity 502 and the outer skin 501 can enhance the overall extensibility, improve the elastic effect, facilitate the conversion of pressure into the elastic potential energy of gas, and absorb a large amount of energy.

[0026] In an embodiment of this utility model, a limiting groove 4 for limiting the position of the air cushion 5 is provided on the top of the sealing ring 1, and the surface shape of the limiting groove 4 is the same as the shape of the extension surface 503. The design of the limiting groove 4 can further improve the limiting effect of the position of the air cushion 5, making it less likely to shift its position when under pressure, and stably playing a buffering role.

[0027] In an embodiment of this utility model, an elastic cotton 7 is filled between the cushioning pad 6 and the air cushion 5, and the internal structure of the elastic cotton 7 has honeycomb pores; the honeycomb pore structure inside the elastic cotton 7 gives it good elasticity and breathability, and it undergoes elastic deformation under pressure, further buffering external forces.

[0028] In the embodiments of this utility model, each buffer cavity 2 and the partition block 3 has a hexagonal cross-sectional shape, and the partition block 3 is made of elastic rubber material; the hexagonal design of the buffer cavity 2 and the partition block 3 makes the internal structure of the sealing ring 1 compact and the force uniform.

[0029] In the embodiments of this utility model, the distance between the upper and lower corners of the flow hole 301 is greater than the distance between the two side corners, and the corners of the flow hole 301 are all rounded corners; this design can increase the contraction distance when pressed down and improve the resilience.

[0030] Working Principle: This embodiment provides a valve seat sealing ring with a buffer structure. First, the buffer chamber 2 inside the sealing ring 1 functions. The hydraulic oil filled in the buffer chamber 2 flows between different areas of the buffer chamber 2 under pressure through the diamond-shaped flow holes 301 on the side wall of the partition block 3. Since the distance between the upper and lower corners of the flow holes 301 is greater than the distance between the two side corners, and the corners are rounded, the flow holes 301 can deform and enlarge their diameter when compressed. This can change the flow rate of the hydraulic oil inside the buffer chamber 2 under different pressures. At the same time, this special shape makes the resistance encountered by the hydraulic oil flow more uniform, which can more effectively disperse the pressure. The flow of hydraulic oil consumes some of the external force energy, playing a preliminary buffering effect. Meanwhile, the partition block 3 is made of elastic rubber, which will also undergo elastic deformation under pressure, further absorbing energy. Its hexagonal cross-sectional shape makes the internal space layout of the buffer chamber 2 more reasonable, which helps the flow and buffering of hydraulic oil. At the top of the sealing ring 1, the air cushion 5, the buffer pad 6, and the elastic cotton 7 together constitute the buffer system. The wavy extension surface 503 on the side adjacent to the outer skin 501 of the air cushion 5 and the air cavity 502 allows it to undergo significant elastic deformation under pressure. The surface shape of the limiting groove 4 is the same as that of the extension surface 503, ensuring that the air cushion 5 does not shift during compression deformation and stably performs its buffering function. The gas inside the air cavity 502 is compressed under pressure, converting the pressure into the elastic potential energy of the gas and absorbing a large amount of energy. The honeycomb structure inside the elastic cotton 7 gives it good elasticity and breathability, and it undergoes elastic deformation under pressure, further buffering external forces. The circular arc-shaped buffer pad 6 can evenly distribute pressure, avoid excessive local pressure, and protect the air cushion 5 from damage by sharp objects. Through the flow of hydraulic oil in the buffer chamber 2, the elastic deformation of the separator block 3, and the synergistic buffering of the air cushion 5, elastic cotton 7, and buffer pad 6, the valve seat sealing ring 1 can effectively absorb and disperse external pressure, reduce the impact of pressure on the valve seat and sealing ring 1 itself, improve the service life and sealing performance of the sealing ring 1, and ensure the stability and reliability of the valve seat during operation.

[0031] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A valve seat sealing ring with a buffer structure, characterized in that, Includes a sealing ring (1), the internal structure of which has several buffer chambers (2) for filling hydraulic oil, and several partition blocks (3) for dividing the flow channel of the buffer chamber (2) are arranged in an array inside the buffer chamber (2). An air cushion (5) is fixedly installed on the top of the sealing ring (1), and a buffer pad (6) of the protective air cushion (5) is also fixedly installed on the top of the sealing ring (1), and the surface shape of the buffer pad (6) is arc-shaped. Each of the partition blocks (3) has a flow hole (301) on its side wall, and the flow hole (301) is rhomboid in shape.

2. The valve seat sealing ring with a buffer structure according to claim 1, characterized in that, The air cushion (5) includes an outer skin (501), the inner structure of which has an air cavity (502), and the sides of the outer skin (501) adjacent to the air cavity (502) are constructed with wavy extension surfaces (503).

3. The valve seat sealing ring with a buffer structure according to claim 2, characterized in that, The top of the sealing ring (1) is provided with a limiting groove (4) for limiting the position of the air cushion (5), and the surface shape of the limiting groove (4) is the same as the shape of the extension surface (503).

4. The valve seat sealing ring with a buffer structure according to claim 1, characterized in that, The space between the cushioning pad (6) and the air cushion (5) is filled with elastic cotton (7), and the elastic cotton (7) has a honeycomb structure inside.

5. The valve seat sealing ring with a buffer structure according to claim 1, characterized in that, Each of the buffer cavities (2) and the partition block (3) has a hexagonal cross-sectional shape, and the partition block (3) is made of elastic rubber.

6. The valve seat sealing ring with a buffer structure according to claim 1, characterized in that, The distance between the upper and lower corners of the flow hole (301) is greater than the distance between the two side corners, and the corners of the flow hole (301) are all rounded.

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