High-performance flexible sealing ring

Abstract

The utility model relates to the technical field of sealing elements, and discloses a high-performance flexible sealing ring which comprises an upper ring, the bottom of the outer wall of the upper ring is fixedly connected with a lower ring, the inner wall of the upper ring is provided with a pressure-resistant mechanism, the inner wall of the lower ring is provided with a temperature-resistant mechanism, the pressure-resistant mechanism comprises a convex edge, and the convex edge is fixedly connected with the lower ring. The outer wall of the convex edge is fixedly connected to the outer wall of the upper ring, a groove is formed in the inner wall of the upper ring, a plurality of fixing blocks are fixedly connected to the inner wall of the groove, springs are fixedly connected to the outer walls of the fixing blocks, and a plurality of pressure relief holes are formed in the outer wall of the upper ring. The pressure-resistant mechanism provides pre-tightening force support through the elastic supporting structure when the sealing ring is pressed, structural failure caused by excessive deformation is prevented, the elastic element promotes the sealing ring to reset quickly after pressure is released, the anti-oxidation layer blocks material degradation, the buffer layer resists chemical medium erosion, and the supporting layer keeps the overall form stable. And the compression resistance and deformation prevention effects are achieved.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology, and in particular to a high-performance flexible sealing ring. Background Technology

[0002] A sealing ring is a ring-shaped sealing element mainly used to prevent leakage of liquid or gaseous media between the mating surfaces of mechanical equipment. It fills gaps through the compression and deformation of elastic materials to form a reliable sealing barrier. Made of rubber, plastic or metal, it has high temperature and corrosion resistance. Functionally, it can prevent fluid loss, isolate dust and impurities from entering, and ensure efficient and safe system operation. Application scenarios include automotive engine pipeline connections, medical equipment hydraulic systems, and electronic product interfaces. It can improve equipment life and performance and reduce maintenance needs.

[0003] Traditional sealing rings rely on elastic deformation to fill the gaps in the contact surface to achieve sealing. During rotation or reciprocating motion, they depend on the thin oil film formed to reduce friction and wear. However, under conditions of high pressure differential, temperature fluctuation, or media corrosion, the oil film may rupture, leading to abnormal wear. Additionally, the material itself may age due to thermal or chemical effects, affecting the long-term effectiveness of the seal. Existing technologies, such as self-tightening sealing rings, utilize media pressure to actively enhance the contact force between the sealing lip and the bushing, improving the adaptive sealing effect. However, in practical use, these devices suffer from key structural deficiencies, particularly the lack of effective internal pressure-resistant support and anti-radial deformation mechanisms. This deficiency makes it difficult for the sealing ring to maintain stable cross-sectional geometry when subjected to extreme pressure or eccentric shaft operation, resulting in internal stress imbalance. This accelerates permanent deformation or fatigue cracking of the sealing lip, ultimately causing premature failure of the sealing function. Therefore, a high-performance flexible sealing ring is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a high-performance flexible sealing ring designed to improve the lack of effective internal pressure-resistant support and radial deformation prevention mechanisms in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-performance flexible sealing ring, comprising an upper ring, a lower ring fixedly connected to the bottom of the outer wall of the upper ring, a pressure-resistant mechanism provided on the inner wall of the upper ring, and a temperature-resistant mechanism provided on the inner wall of the lower ring.

[0006] The pressure-resistant mechanism includes a protruding edge, the outer wall of which is fixedly connected to the outer wall of the upper ring. The inner wall of the upper ring has a groove, and multiple fixing blocks are fixedly connected to the inner wall of the groove. Springs are fixedly connected to the outer walls of the multiple fixing blocks. The outer wall of the upper ring has multiple pressure relief holes. A fixing component is provided on the inner wall of the groove. A wear-resistant component is provided on the inner wall of the upper ring. A support component is provided on the inner wall of the upper ring.

[0007] As a further description of the above technical solution:

[0008] The temperature-resistant mechanism includes an upper thin plate, the top of the outer wall of the upper thin plate is fixedly connected to the inner wall of the upper ring, the bottom of the outer wall of the upper thin plate is fixedly connected to a heat insulation cotton, the bottom of the outer wall of the heat insulation cotton is fixedly connected to a lower thin plate, the inner wall of the upper thin plate is fixedly connected to a fixing rod, and the top of the outer wall of the fixing rod is fixedly connected to a first fixing button.

[0009] As a further description of the above technical solution:

[0010] The temperature-resistant mechanism also includes a second fixing button, the top of the outer wall of the second fixing button being fixedly connected to the bottom of the outer wall of the fixing rod.

[0011] As a further description of the above technical solution:

[0012] The fixing component includes a fixing ring, the bottom of the outer wall of the fixing ring is fixedly connected to the inner wall of the lower ring, and the inner wall of the upper ring is provided with a fixing groove.

[0013] As a further description of the above technical solution:

[0014] The wear-resistant component includes a wear-resistant layer, the outer wall of which is fixedly connected to the inner wall of the upper ring, and an antioxidant layer is fixedly connected to the inner wall of the wear-resistant layer.

[0015] As a further description of the above technical solution:

[0016] The support component includes a buffer layer, the outer wall of which is fixedly connected to the inner wall of the antioxidant layer, and the inner wall of the buffer layer is fixedly connected to the support layer.

[0017] As a further description of the above technical solution:

[0018] The inner wall of the upper ring has multiple fixing holes, and the outer wall of the upper ring has multiple corrugated grooves.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the upper ring is fixedly connected with a connecting strip, and the outer wall of the lower ring is provided with multiple pressure relief holes.

[0021] This utility model has the following beneficial effects:

[0022] In this invention, the pressure-resistant mechanism provides pre-tightening support to the sealing ring when it is under pressure through an elastic support structure, preventing excessive deformation from causing structural failure. At the same time, the pressure equalization system quickly eliminates the internal pressure difference. After the pressure is released, the elastic element causes the sealing ring to quickly reset. Its composite protective structure includes a wear-resistant layer to reduce friction loss, an antioxidant layer to block material degradation, a buffer layer to resist chemical media erosion, and a support layer to maintain the overall shape stability, thus achieving the effect of pressure resistance and deformation prevention.

[0023] In this invention, the heat-resistant mechanism forms a heat insulation barrier by clamping the heat insulation cotton between upper and lower thin plates. When the internal temperature fluctuates drastically, the heat insulation layer effectively blocks heat transfer and prevents structural malfunction caused by high temperature. At the same time, the heat insulation layer is connected by a fixing rod that penetrates the thin plate, and the fixing buttons at both ends of the rod are used to implement bidirectional fastening to ensure that the heat insulation cotton structure is stable and does not shift, thereby maintaining the integrity and long-term reliability of the sealing system in high-temperature environments. Attached Figure Description

[0024] Figure 1 This is a perspective view of a high-performance flexible sealing ring proposed in this utility model;

[0025] Figure 2 This is a front view of a high-performance flexible sealing ring proposed in this utility model;

[0026] Figure 3 This is a top view of a high-performance flexible sealing ring proposed in this utility model;

[0027] Figure 4 This is an exploded view of a high-performance flexible sealing ring proposed in this utility model;

[0028] Figure 5 This is a cross-sectional view of the upper ring of a high-performance flexible sealing ring proposed in this utility model.

[0029] Legend:

[0030] 1. Upper ring; 2. Lower ring; 3. Pressure-resistant mechanism; 301. Raised edge; 302. Fixing block; 303. Spring; 304. Groove; 305. Pressure relief hole; 306. Fixing component; 3061. Fixing ring; 3062. Fixing groove; 307. Wear-resistant component; 3071. Wear-resistant layer; 3072. Antioxidant layer; 308. Support component; 3081. Buffer layer; 3082. Support layer; 4. Temperature-resistant mechanism; 401. Upper thin plate; 402. Lower thin plate; 403. Thermal insulation cotton; 404. Fixing rod; 405. First fixing button; 406. Second fixing button; 5. Fixing hole; 6. Corrugated groove; 7. Connecting strip. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 2 and Figure 3 The present invention provides an embodiment of a high-performance flexible sealing ring, comprising an upper ring 1, a lower ring 2 fixedly connected to the bottom of the outer wall of the upper ring 1, a pressure-resistant mechanism 3 provided on the inner wall of the upper ring 1, and a temperature-resistant mechanism 4 provided on the inner wall of the lower ring 2, wherein the upper ring 1 and the lower ring 2 together constitute a complete sealing ring.

[0033] The pressure-resistant mechanism 3 includes a protruding edge 301, the outer wall of which is fixedly connected to the outer wall of the upper ring 1. A groove 304 is formed on the inner wall of the upper ring 1, and multiple fixing blocks 302 are fixedly connected to the inner wall of the groove 304. Springs 303 are fixedly connected to the outer walls of each fixing block 302. Multiple pressure relief holes 305 are formed on the outer wall of the upper ring 1. A fixing component 306 is provided on the inner wall of the groove 304. The fixing component 306 includes a fixing ring 3061, the bottom of which is fixedly connected to the inner wall of the lower ring 2. A fixing groove 3062 is formed on the inner wall of the upper ring 1. Fixing blocks 302 are fixed in the groove 304 inside the upper ring 1, and springs 303 are provided on the fixing blocks 302. When the sealing ring is compressed, the internal springs 303 provide support using their own preload, preventing excessive pressure that could paralyze the entire sealing structure. Multiple pressure relief holes 305 are formed on both the upper ring 1 and the lower ring 2. When compressed, the internal pressure difference can... The compression is quickly eliminated, and after the compression ends, the spring 303 uses its own action to make the sealing ring quickly return to its original shape. The inner wall of the upper ring 1 is provided with a wear-resistant component 307, which includes a wear-resistant layer 3071, which has excellent wear resistance and tear resistance, and can reduce the wear caused by friction with the sealing surface. The outer wall of the wear-resistant layer 3071 is fixedly connected to the inner wall of the upper ring 1. The inner wall of the wear-resistant layer 3071 is fixedly connected with an antioxidant layer 3072, which prevents the inner layer material from oxidizing and degrading. The inner wall of the upper ring 1 is provided with a support component 308, which includes a buffer layer 3081. Its unique chemical stability can resist the erosion of water, steam and various chemical media, and also has excellent weather resistance. The outer wall of the buffer layer 3081 is fixedly connected to the inner wall of the antioxidant layer 3072. The inner wall of the buffer layer 3081 is fixedly connected with the support layer 3082, which provides rigid support for the entire sealing ring and effectively resists the deformation and aging caused by long-term compression.

[0034] Specifically, the pressure-resistant mechanism 3 includes a protruding edge 301, the outer wall of which is directly fixed to the outer wall of the upper ring 1. The inner wall of the upper ring 1 has a groove 304, and multiple fixing blocks 302 are fixed to the inner wall of the groove 304. A spring 303 is fixedly connected to the outer wall of each of these fixing blocks 302. Multiple pressure relief holes 305 are distributed on the outer wall of the upper ring 1. A fixing component 306 is provided on the inner wall of the groove 304. The fixing component 306 is composed of a fixing ring 3061, and the lower end of the outer wall of the fixing ring 3061... The upper ring 1 is fixedly connected to the inner wall of the lower ring 2. A fixing groove 3062 is engraved on the inner wall of the upper ring 1. Specifically, a fixing block 302 is securely installed in the groove 304 inside the upper ring 1. A spring 303 is equipped on the fixing block 302. When the sealing ring is subjected to compressive force, the internal spring 303 provides support to the structure with its own preload, preventing excessive pressure from causing the entire sealing system to fail. Both the upper ring 1 and the lower ring 2 have multiple pressure relief holes 305. During the compression process, the internal pressure difference can be promptly released. After the compression ends... Spring 303 uses its own elasticity to push the sealing ring to quickly return to its original state. The inner wall of the upper ring 1 integrates a wear-resistant component 307, which contains a wear-resistant layer 3071. The wear-resistant layer 3071 exhibits good wear resistance and tear resistance, reducing wear caused by friction with the sealing surface. The outer wall of the wear-resistant layer 3071 is tightly fixed to the inner wall of the upper ring 1, while the inner wall of the wear-resistant layer 3071 is fixedly connected to an antioxidant layer 3072. The antioxidant layer 3072 is responsible for preventing oxidation and degradation of the inner layer material. The inner wall of the upper ring 1 is equipped with a support component 308, which includes a buffer layer 3081. The buffer layer 3081 has special chemical stability and can resist the erosion of water, steam and various chemical substances. It also exhibits excellent weather resistance. The outer wall of the buffer layer 3081 is fixed to the inner wall of the antioxidant layer 3072. The inner wall of the buffer layer 3081 firmly fixes the support layer 3082. The support layer 3082 provides solid support for the entire sealing ring and effectively resists deformation and aging caused by long-term compression.

[0035] Reference Figure 2 , Figure 4 and Figure 5The temperature-resistant mechanism 4 includes an upper thin plate 401, the top of the outer wall of the upper thin plate 401 is fixedly connected to the inner wall of the upper ring 1, the bottom of the outer wall of the upper thin plate 401 is fixedly connected to a heat insulation cotton 403, the bottom of the outer wall of the heat insulation cotton 403 is fixedly connected to a lower thin plate 402, the inner wall of the upper thin plate 401 is fixedly connected to a fixing rod 404, the top of the outer wall of the fixing rod 404 is fixedly connected to a first fixing button 405, and the temperature-resistant mechanism 4 also includes a second fixing button 406, the top of the outer wall of the second fixing button 406 is fixedly connected to the bottom of the outer wall of the fixing rod 404. The heat insulation cotton 403 is fixed by the upper thin plate 401 and the lower thin plate 402, so that when the internal temperature changes suddenly, the heat insulation cotton 403 can be used to prevent the internal temperature from being too high and affecting the normal operation of the entire structure. The heat insulation cotton 403 is connected by the fixing rod 404 and fixed by the first fixing button 405 and the second fixing button 406. The entire mechanism achieves the high temperature resistance effect of the sealing ring.

[0036] Specifically, the temperature-resistant mechanism 4 includes an upper thin plate 401. The top of the outer wall of the upper thin plate 401 is fixed to the inner wall of the upper ring 1. The bottom of the outer wall of the upper thin plate 401 is connected to the insulation cotton 403. The bottom of the outer wall of the insulation cotton 403 is fixed to the lower thin plate 402. The inner wall of the upper thin plate 401 is fixed to a fixing rod 404. The uppermost part of the outer wall of the fixing rod 404 is equipped with a first fixing button 405. This mechanism also includes a second fixing button 406. The upper part of the outer wall of the second fixing button 406 is fixed to the lowermost part of the outer wall of the fixing rod 404. The insulation cotton 403 is stabilized by the upper thin plate 401 and the lower thin plate 402. When the internal temperature changes rapidly, the insulation cotton 403 performs its heat insulation function, effectively blocking heat transfer and preventing abnormal operation of the structure due to high temperature. At the same time, the insulation cotton 403 is connected by the fixing rod 404 and tightened by the first fixing button 405 and the second fixing button 406, ensuring the high temperature resistance of the sealed structure.

[0037] Reference Figure 1 , Figure 2 and Figure 4 The inner wall of the upper ring 1 has multiple fixing holes 5 for fixing internal parts. The outer wall of the upper ring 1 has multiple corrugated grooves 6 to provide a certain friction force and improve sealing stability. The outer wall of the upper ring 1 is fixedly connected with a connecting strip 7. The outer wall of the lower ring 2 has multiple pressure relief holes 305 for releasing the air pressure generated after the internal pressure is applied.

[0038] Specifically, the inner wall of the upper ring 1 has multiple fixing holes 5, which are used to fix internal components. The outer wall of the upper ring 1 is engraved with several corrugated grooves 6, which can increase friction and improve sealing stability. The outer wall of the upper ring 1 is fixed with a connecting strip 7, which facilitates the connection of external parts. The outer wall of the lower ring 2 has multiple pressure relief holes 305, which are used to release the gas pressure generated by internal pressure.

[0039] Working principle: First, the pressure-resistant mechanism 3 provides pre-tightening support to the sealing ring when it is under pressure, using the elastic support element to prevent excessive deformation from causing structural malfunction. At the same time, the internal pressure difference is quickly balanced through the pressure regulation system. After the pressure is released, the elastic component drives the sealing ring to immediately rebound and reset. Its multi-layer protective structure includes a wear-resistant layer 3071 to reduce friction loss, an antioxidant layer 3072 to inhibit material oxidation and degradation, a buffer layer 3081 to block water vapor and chemical media, and a support layer 3082 to provide stable support for the overall shape.

[0040] Furthermore, the heat-resistant mechanism 4 uses the upper thin plate 401 and the lower thin plate 402 to clamp the heat insulation cotton 403 to form a heat insulation barrier. When the internal temperature fluctuates drastically, this heat insulation layer effectively blocks heat transfer and avoids high temperature interference with the normal function of the structure. At the same time, the heat insulation cotton 403 is connected by the fixing rod 404 that penetrates the thin plate. The first fixing button 405 and the second fixing button 406 at both ends of the fixing rod 404 implement bidirectional restraint to ensure that the position of the heat insulation cotton 403 is stable and without displacement, thereby ensuring the structural integrity of the sealing system under high temperature conditions and supporting its long-term operational reliability.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-performance flexible sealing ring, comprising an upper ring (1), characterized in that: The lower ring (2) is fixedly connected to the bottom of the outer wall of the upper ring (1), and the inner wall of the upper ring (1) is provided with a pressure-resistant mechanism (3), and the inner wall of the lower ring (2) is provided with a temperature-resistant mechanism (4). The pressure-resistant mechanism (3) includes a protruding edge (301), the outer wall of which is fixedly connected to the outer wall of the upper ring (1). The inner wall of the upper ring (1) is provided with a groove (304), and the inner wall of the groove (304) is fixedly connected with a plurality of fixing blocks (302). The outer walls of the plurality of fixing blocks (302) are all fixedly connected with springs (303). The outer wall of the upper ring (1) is provided with a plurality of pressure relief holes (305). The inner wall of the groove (304) is provided with a fixing component (306). The inner wall of the upper ring (1) is provided with a wear-resistant component (307). The inner wall of the upper ring (1) is provided with a support component (308).

2. The high-performance flexible sealing ring according to claim 1, characterized in that: The temperature-resistant mechanism (4) includes an upper thin plate (401), the top of the outer wall of the upper thin plate (401) is fixedly connected to the inner wall of the upper ring (1), the bottom of the outer wall of the upper thin plate (401) is fixedly connected to a heat insulation cotton (403), the bottom of the outer wall of the heat insulation cotton (403) is fixedly connected to a lower thin plate (402), the inner wall of the upper thin plate (401) is fixedly connected to a fixing rod (404), and the top of the outer wall of the fixing rod (404) is fixedly connected to a first fixing button (405).

3. The high-performance flexible sealing ring according to claim 1, characterized in that: The temperature-resistant mechanism (4) also includes a second fixing button (406), the top of the outer wall of the second fixing button (406) being fixedly connected to the bottom of the outer wall of the fixing rod (404).

4. The high-performance flexible sealing ring according to claim 1, characterized in that: The fixing component (306) includes a fixing ring (3061), the bottom of the outer wall of the fixing ring (3061) is fixedly connected to the inner wall of the lower ring (2), and the inner wall of the upper ring (1) is provided with a fixing groove (3062).

5. The high-performance flexible sealing ring according to claim 1, characterized in that: The wear-resistant component (307) includes a wear-resistant layer (3071), the outer wall of which is fixedly connected to the inner wall of the upper ring (1), and an antioxidant layer (3072) is fixedly connected to the inner wall of the wear-resistant layer (3071).

6. The high-performance flexible sealing ring according to claim 1, characterized in that: The support component (308) includes a buffer layer (3081), the outer wall of which is fixedly connected to the inner wall of the antioxidant layer (3072), and the inner wall of the buffer layer (3081) is fixedly connected to the support layer (3082).

7. The high-performance flexible sealing ring according to claim 1, characterized in that: The inner wall of the upper ring (1) is provided with multiple fixing holes (5), and the outer wall of the upper ring (1) is provided with multiple corrugated grooves (6).

8. The high-performance flexible sealing ring according to claim 1, characterized in that: The outer wall of the upper ring (1) is fixedly connected with a connecting strip (7), and the outer wall of the lower ring (2) is provided with multiple pressure relief holes (305).

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