Compression-resistant O-shaped ring

Abstract

The utility model discloses a compression-resistant O-shaped ring which comprises a first connecting ring, rubber sealing gaskets are installed at the two ends of the first connecting ring in a sliding mode, a metal compression-resistant ring is fixedly installed in the rubber sealing gaskets, a first contraction groove is formed in one side of the metal compression-resistant ring, and a reset spring is fixedly installed in the first contraction groove. Second contraction grooves are formed in the two sides of the interior of the rubber sealing gasket, the two ends of the first connecting ring are slidably installed in the second contraction grooves, and a second connecting ring is slidably installed on one side of the first connecting ring. The sealing ring has the advantages that the sealing effect is achieved through the rubber sealing gaskets at the two ends of the first connecting ring and the two ends of the second connecting ring, pressure received during sealing is supported through the metal compression-resistant rings in the rubber sealing gaskets, the whole sealing ring is effectively prevented from being greatly deformed, and when the pressure received by the whole sealing ring is reduced, the sealing effect is good. And the reset spring in the metal compression-resistant ring enables the whole sealing ring to return to the initial position through the elastic force of the reset spring, and the service life of the whole sealing ring is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of O-type sealing rings, in particular to a pressure-resistant O-type ring. Background Art

[0002] In the existing field of mechanical seals, sealing rings are widely used in hydraulic systems, pneumatic systems, automotive, aerospace, medical, food and beverage, and other industries due to their simple structure, easy installation, and excellent sealing performance. However, despite their many advantages, sealing rings' single structure and function often limit their application range and durability in some complex working conditions with high loads.

[0003] Specifically, traditional sealing rings are mostly made from a single elastic material (such as rubber). While this structure is easy to process and install, its pressure resistance is particularly insufficient when used with components such as flanges. When the system is subjected to high pressure, the sealing ring is easily squeezed and deformed, which not only affects its sealing effect but can also cause permanent damage to the sealing ring itself. Once the sealing ring is squeezed and deformed significantly, it is often difficult to return to its original sealing position, resulting in seal failure and leakage. Therefore, the sealing ring needs to be replaced frequently during use, which increases subsequent maintenance costs. Currently, no effective solution has been proposed to address the problems in the related technology. Utility Model Content

[0004] In view of the problems in the related art, the present invention proposes a pressure-resistant O-ring to overcome the above technical problems existing in the existing related art.

[0005] To this end, the specific technical solutions adopted in this utility model are as follows:

[0006] A pressure-resistant O-ring includes a connecting ring 1, rubber sealing pads are slidably installed at both ends of the connecting ring 1, a metal pressure-resistant ring is fixedly installed inside the rubber sealing pad, a shrinkage groove 1 is opened on one side of the metal pressure-resistant ring, a return spring is fixedly installed inside the shrinkage groove 1, shrinkage grooves 2 are opened on both sides of the rubber sealing pad, both ends of the connecting ring 1 are slidably installed in the shrinkage groove 2, and the connecting ring 2 is slidably installed on one side of the connecting ring 1.

[0007] Furthermore, in order to achieve the anti-slip effect of the entire sealing ring, a protective pad is fixedly connected to one side of the surface of the rubber sealing pad, and an anti-slip groove is opened on the surface of the anti-slip pad. A rubber suction cup is fixedly connected to the inside of the anti-slip groove. When the sealing ring is used as a whole, the rubber suction cup is adsorbed on the flange to effectively prevent the sealing ring from slipping as a whole.

[0008] Furthermore, in order to prevent connecting ring one and connecting ring two from sliding out of shrinkage groove two, the ends of connecting ring one and connecting ring two are fixedly connected to limiting rings, and the limiting rings are slidably installed in shrinkage groove two. The limiting rings limit the sliding of connecting ring one and connecting ring two in shrinkage groove two, effectively preventing connecting ring one and connecting ring two from sliding out of the shrinkage groove.

[0009] Furthermore, in order to increase the overall pressure resistance of the sealing ring, a telescopic spring is fixedly installed in the second shrinkage groove, and one end of the telescopic spring is fixedly connected to the limiting ring. The elastic force of the telescopic spring increases the overall pressure resistance of the sealing ring when it is under pressure.

[0010] Furthermore, in order to enhance the anti-slip effect of the rubber sealing gasket, a non-slip rubber sleeve is fixedly connected to the surface of the non-slip pad. By putting the non-slip rubber sleeve on the edge of the flange to be installed, it is used to prevent the sealing rubber gasket from slipping on the surface of the flange.

[0011] Furthermore, in order to protect the inner wall of the second shrinkage groove, a protective ring is fixedly installed inside the second shrinkage groove, and one end of the telescopic spring is fixedly connected to the protective ring to prevent the telescopic spring from squeezing the inner wall of the second shrinkage groove.

[0012] Furthermore, in order to achieve an anti-tearing effect when the sealing ring is used as a whole, an anti-tearing layer is fixedly connected to the surface of the anti-slip pad, and the anti-tearing layer prevents the sealing ring as a whole from tearing when subjected to pressure.

[0013] The beneficial effects of the utility model are as follows: the sealing effect during use is achieved by the rubber sealing gaskets slidably installed at both ends of the connecting ring one and the connecting ring two; when the sealing ring as a whole is subjected to pressure, the metal pressure-resistant ring inside the rubber sealing gasket stably supports the pressure, effectively preventing the sealing ring as a whole from undergoing large deformation, thereby ensuring the sealing effect; when the pressure on the sealing ring as a whole is reduced, the return spring in the metal pressure-resistant ring pushes the sealing ring as a whole to expand and contract to the state before the pressure is applied through its own elastic force, thereby greatly improving the service life of the sealing ring as a whole, eliminating the need for frequent replacement and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the surface structure of a compression-resistant O-ring according to an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a compression-resistant O-ring according to an embodiment of the present utility model;

[0017] Figure 3 This is an internal cross-sectional view of a compression-resistant O-ring according to an embodiment of the present utility model;

[0018] Figure 4 It is a top view of a compression-resistant O-ring according to an embodiment of the present utility model.

[0019] In the picture:

[0020] 1. Connecting ring 1; 2. Rubber sealing pad; 3. Metal anti-compression ring; 4. Shrinkage groove 1; 5. Reset spring; 6. Shrinkage groove 2; 7. Connecting ring 2; 8. Anti-slip pad; 9. Anti-slip groove; 10. Rubber suction cup; 11. Limiting ring; 12. Telescopic spring; 13. Anti-slip rubber sleeve; 14. Protective ring; 15. Anti-tear layer. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] According to an embodiment of the present utility model, a pressure-resistant O-ring is provided. Example 1:

[0023] like Figures 1-4 As shown, according to an embodiment of the present invention, a pressure-resistant O-ring includes a connecting ring 1 made of metal, and a pair of O-shaped rubber sealing gaskets 2 are slidably installed at both ends of the connecting ring 1, and the sealing ring as a whole is formed by the mutual cooperation of the two rubber sealing gaskets 2 and the connecting ring 1; a metal pressure-resistant ring 3 is fixedly installed inside each rubber sealing gasket 2, which is used to increase the pressure resistance of the sealing ring as a whole when used; a shrinkage groove 4 is opened on one side of the metal pressure-resistant ring 3, and a return spring 5 is fixedly installed inside the shrinkage groove 4, and both ends of the return spring 5 are fixedly connected to the shrinkage groove 4 of the two metal pressure-resistant rings 3. When the sealing ring body is compressed and contracted, the pressure decreases, and the return spring 5 pushes the sealing ring as a whole to return to the state before the compression through its own elastic force; shrinkage grooves 2 6 are opened on both sides of the rubber sealing gasket 2, and the two ends of the connecting ring 1 are slidably installed in the shrinkage groove 2 6, and a connecting ring 2 7 is slidably installed on one side of the connecting ring 1, which is used to achieve a sealing connection between the two rubber sealing gaskets 2.

[0024] like Figures 1-4As shown, a protective pad is fixedly connected to one side of the surface of the rubber sealing pad 2, an anti-skid groove 9 is opened on the surface of the anti-skid pad 8, and a rubber suction cup 10 is fixedly connected to the inside of the anti-skid groove 9. The sealing connection makes the sealing ring as a whole adsorbed on the flange plane that needs to be sealed through the rubber suction cup 10 to prevent the sealing ring from slipping off when the whole is used; the ends of the connecting ring 1 and the connecting ring 2 7 are fixedly connected to the limiting ring 11, and the limiting ring 11 is slidably installed in the shrinkage groove 2 6 to prevent the connecting ring 1 and the connecting ring 2 from slipping out of the shrinkage groove 2 6; a telescopic spring 12 is fixedly installed in the shrinkage groove 2 6, and one end of the telescopic spring 12 is fixedly connected to On the limiting ring 11, the elastic force of the telescopic spring 12 can further increase the overall pressure resistance of the sealing ring; the surface of the anti-slip pad 8 is fixedly connected to the anti-slip rubber sleeve 13, and when the sealing ring is installed for sealing, the anti-slip rubber sleeve 13 can be put on the side surface of the flange to enhance the anti-slip effect of the rubber sealing pad 2; a metal protective ring 14 is fixedly installed inside the shrinkage groove 26, and one end of the telescopic spring 12 is fixedly connected to the protective ring 14 to protect the inner wall of the shrinkage groove 26; the surface of the anti-slip pad 8 is fixedly connected to an anti-tear layer 15 to prevent the sealing ring from tearing when it is squeezed.

[0025] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process is described in detail below.

[0026] To sum up, with the help of the above-mentioned technical scheme of the present invention, in actual use, the rubber sealing gasket 2 is slidably installed at both ends of the connecting ring 1 and the connecting ring 2 7 to form an O-shaped sealing ring as a whole, thereby achieving a sealing effect during use; when the two sides of the sealing ring as a whole are subjected to pressure, the return spring 5 and the telescopic spring 12 inside the rubber sealing gasket 2 shrink, and the two metal pressure-resistant rings 3 contact each other to stably support the pressure, effectively preventing the sealing ring as a whole from undergoing large-scale deformation and ensuring the sealing effect; when the pressure on the sealing ring as a whole is reduced, the return spring 5 in the metal pressure-resistant ring 3 and the telescopic spring 12 in the contraction groove 2 6 push the sealing ring as a whole to return to the state before the pressure through their own elastic force, thereby effectively improving the service life of the sealing ring as a whole.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A compression-resistant O-ring, characterized in that: The invention comprises a connecting ring (1), rubber sealing pads (2) are slidably mounted on both ends of the connecting ring (1), a metal anti-pressure ring (3) is fixedly mounted inside the rubber sealing pad (2), a shrinkage groove (4) is provided on one side of the metal anti-pressure ring (3), a return spring (5) is fixedly mounted inside the shrinkage groove (4), shrinkage grooves (6) are provided on both sides of the inside of the rubber sealing pad (2), both ends of the connecting ring (1) are slidably mounted in the shrinkage grooves (6), and a connecting ring (7) is slidably mounted on one side of the connecting ring (1).

2. A compression-resistant O-ring according to claim 1, characterized in that: An anti-skid pad (8) is fixedly connected to one side of the surface of the rubber sealing pad (2), an anti-skid groove (9) is formed on the surface of the anti-skid pad (8), and a rubber suction cup (10) is fixedly connected inside the anti-skid groove (9).

3. The compression-resistant O-ring according to claim 1, characterized in that: The ends of the connecting ring 1 (1) and the connecting ring 2 (7) are fixedly connected to a limiting ring (11), and the limiting ring (11) is slidably installed in the shrinkage groove 2 (6).

4. A compression-resistant O-ring according to claim 3, characterized in that: A telescopic spring (12) is fixedly installed in the second shrinkage groove (6), and one end of the telescopic spring (12) is fixedly connected to the limiting ring (11).

5. The compression-resistant O-ring according to claim 2, characterized in that: The surface of the anti-slip pad (8) is fixedly connected to an anti-slip rubber sleeve (13).

6. The compression-resistant O-ring according to claim 4, characterized in that: A protective ring (14) is fixedly installed inside the second contraction groove (6), and one end of the telescopic spring (12) is fixedly connected to the protective ring (14).

7. The compression-resistant O-ring according to claim 5, characterized in that: An anti-tear layer (15) is fixedly connected to the surface of the anti-slip pad (8).

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