Sealing isolation ring device for high-temperature environment

Abstract

The utility model relates to the technical field of sealing elements, and discloses a sealing isolation ring device for a high-temperature environment, which comprises a first rubber ring, a rubber column is fixedly connected to the middle of the bottom end of the first rubber ring, a second rubber ring is fixedly connected to the bottom end of the rubber column, and a third rubber ring is arranged at the bottom end of the second rubber ring. And rubber vertical rings are fixedly connected to the positions, on the left side and the right side of the second rubber ring, of the top of the third rubber ring, sliding rubber rings are fixedly connected to the positions, on the left side and the right side of the rubber column, of the opposite ends of the rubber vertical rings, and the sliding rubber rings are slidably connected with the left side and the right side of the rubber column correspondingly. According to the sealing and isolating device, the sealing and isolating device can be conveniently mounted and dismounted through expansion and contraction of the expansion assembly, the first rubber ring, the third rubber ring, the second rubber ring, the sliding rubber ring and the rubber column are supported through the first steel ring, the second steel ring and the reinforcing ribs respectively, and the sealing and isolating device can be prevented from deforming at high temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of seals, in particular to a sealing and isolating ring device for high-temperature environments. Background Art

[0002] A sealing ring is a mechanical part used to prevent fluid (liquid or gas) leakage, and is widely used in various mechanical equipment, pipeline systems, automobiles, aerospace and other fields. The sealing ring for high-temperature environments is designed to adapt to specific industrial applications, which usually involve the handling of high-temperature fluids, the operation of high-temperature equipment, or mechanical components in high-temperature environments.

[0003] High-temperature sealing rings are usually made of materials with high elasticity, such as silicone rubber, fluororubber, polytetrafluoroethylene (PTFE), etc. These materials are compressed during installation, resulting in elastic deformation. When the sealing ring is compressed, it will try to return to its original shape, and this restoring force is the key to the sealing ring achieving sealing. The sealing ring is installed between two relatively moving or stationary components, and through its elastic deformation, it is in close contact with the surface of the components, forming a sealing interface that can prevent fluid (liquid or gas) from leaking through the gap.

[0004] However, some existing sealing and isolating devices on the market are integrally designed and require specific tools for both installation and disassembly, which is very inconvenient. Moreover, some sealing devices will expand in high-temperature environments, resulting in deformation of the sealing and isolating device when the high-temperature environment is lost. Therefore, a sealing and isolating ring device for high-temperature environments 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 a sealing and isolating ring device for high-temperature environments, aiming to improve the problems that different tools are required for installation and disassembly of the sealing device in the existing technology, which is very inconvenient, and the sealing and isolating device is deformed due to the loss of the high-temperature environment.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A sealing and isolating ring device for high-temperature environments, including a first rubber ring, a rubber column is fixedly connected to the middle of the bottom end of the first rubber ring, a second rubber ring is fixedly connected to the bottom end of the rubber column, a third rubber ring is arranged at the bottom end of the second rubber ring, rubber vertical rings are fixedly connected to the left and right sides of the second rubber ring at the top of the third rubber ring, sliding rubber rings are fixedly connected to the left and right sides of the rubber column at the opposite ends of the rubber vertical rings, the sliding rubber rings are respectively slidably connected to the left and right sides of the rubber column, a cavity is formed between the bottom of the second rubber ring and the top of the third rubber ring, and an expansion component is arranged inside the cavity. The expansion component expands at high temperature to make the sealing and isolating ring connect more tightly with the sealed components.

[0007] As a further description of the above technical solution: The expansion component includes an elastic explosion-proof layer, the outer side of the elastic explosion-proof layer is attached to the inner wall of the cavity, an airbag is arranged inside the elastic explosion-proof layer, one side of the outer end of the airbag is fixedly connected with a nozzle, and a pinhole is opened at the outer end of the nozzle.

[0008] As a further description of the above technical solution: The outer ends of the second rubber ring and the pinhole both penetrate through the elastic explosion-proof layer and the outer rubber vertical ring, and the pinhole is communicated with the inside of the airbag.

[0009] As a further description of the above technical solution: The length of the first rubber ring is the same as that of the third rubber ring, and steel rings one are fixedly connected to the left and right ends inside the first rubber ring and the left and right ends inside the third rubber ring.

[0010] As a further description of the above technical solution: The length of the second rubber ring is less than that of the first rubber ring, and the length of the second rubber ring is the same as the total length of the rubber column and the two sliding rubber rings.

[0011] As a further description of the above technical solution: Steel rings two are fixedly connected to the left and right ends inside the two sliding rubber rings and the left and right ends inside the second rubber ring.

[0012] As a further description of the above technical solution: A reinforcing rib is fixedly connected to the middle part of the inner side of the rubber column.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the sealing device is placed on the component to be sealed, a certain amount of gas is filled into the airbag, the airbag expands, the distance between the first rubber ring and the third rubber ring increases, the component to be sealed is supported, and the leakage of fluid is prevented. By releasing a part of the gas in the airbag, the distance between the first rubber ring and the third rubber ring will decrease accordingly, and the sealing and isolation device can be easily installed and disassembled.

[0015] 2. In the utility model, the steel ring one supports the first rubber ring and the second rubber ring, the steel ring two supports the third rubber ring and the sliding rubber ring, and the reinforcing rib supports the rubber column, which can prevent the sealing and isolation device from deforming due to heat. Description of the Drawings

[0016] Figure 1 is a three-dimensional schematic diagram of a sealing and isolation ring device for high-temperature environment proposed by the utility model;

[0017] Figure 2 is an overall left-middle sectional view of a sealing and isolation ring device for high-temperature environment proposed by the utility model;

[0018] Figure 3The front sectional view of a sealing and isolating ring device for high-temperature environment proposed by the present utility model.

[0019] Legend:

[0020] 1. Rubber ring 1; 2. Rubber column; 3. Rubber ring 2; 4. Reinforcing rib; 5. Steel ring 1; 6. Rubber ring 3; 7. Rubber vertical ring; 8. Sliding rubber ring; 9. Steel ring 2; 10. Cavity; 11. Elastic explosion-proof layer; 12. Airbag; 13. Air nozzle; 14. Pinhole. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0022] Refer to Figure 1 and Figure 2 As shown in [relevant figures], an embodiment provided by the present utility model: A sealing and isolating ring device for high-temperature environment, including a rubber ring 1, a rubber column 2 is fixedly connected to the middle of the bottom end of the rubber ring 1, a rubber ring 2 is fixedly connected to the bottom end of the rubber column 2, a rubber ring 3 is arranged at the bottom end of the rubber ring 2, rubber vertical rings 7 are fixedly connected to the left and right sides of the top of the rubber ring 3 relative to the rubber ring 2, sliding rubber rings 8 are fixedly connected to the left and right sides of the rubber column 2 at the opposite ends of the rubber vertical rings 7, the sliding rubber rings 8 are respectively slidably connected to the left and right sides of the rubber column 2, a cavity 10 is formed between the bottom of the rubber ring 2 and the top of the rubber ring 3, and an expansion assembly is arranged inside the cavity 10. The expansion assembly expands at high temperature to make the connection between the sealing and isolating ring and the sealed component closer.

[0023] When the expansion assembly is at high temperature, it will expand to increase the space of the cavity 10, making the rubber ring 2 and the sliding rubber ring 8 fit tightly, and the distance between the rubber ring 1 and the rubber ring 3 becomes larger, so that the sealing and isolating device tightly holds the sealed component to prevent fluid leakage, thereby realizing the installation of the sealing and isolating device. By releasing a part of the gas inside the airbag 12, the distance between the rubber ring 1 and the rubber ring 3 can be restored, and the sealing and isolating device can be easily removed.

[0024] Refer to Figure 1 and Figure 2The expansion component includes an elastic explosion-proof layer 11, the outer side of the elastic explosion-proof layer 11 is in contact with the inner wall of the cavity 10, an airbag 12 is arranged inside the elastic explosion-proof layer 11, an air nozzle 13 is fixedly connected to one side of the outer end of the airbag 12, a pinhole 14 is provided at the outer end of the air nozzle 13, the outer ends of the rubber ring 23 and the pinhole 14 both penetrate the elastic explosion-proof layer 11 and the outer rubber vertical ring 7, and the pinhole 14 is connected to the interior of the airbag 12.

[0025] Insert the inflation needle into the needle hole 14, and then inflate the airbag 12 to expand the airbag 12. When the airbag 12 expands, the elastic explosion-proof layer 11 is expanded. The elastic explosion-proof layer 11 prevents the air nozzle 13 from exploding when it expands. The expansion of the elastic explosion-proof layer 11 will drive the rubber ring 2 3 to move upward, so that the rubber ring 2 3 and the sliding rubber ring 8 fit tightly.

[0026] Reference Figure 2 and Figure 3 The length of the rubber ring 1 is consistent with the length of the rubber ring 3 6, and the left and right ends of the inner part of the rubber ring 1 and the left and right ends of the inner part of the rubber ring 3 6 are fixedly connected with a steel ring 5.

[0027] The shapes of the rubber ring 1 and the rubber ring 3 6 are fixed respectively by four steel rings 1 5 . Even under high temperature conditions, the rubber ring 1 and the rubber ring 3 6 will not be deformed, resulting in poor sealing effect.

[0028] Reference Figure 2 and Figure 3 The length of the rubber ring 23 is less than that of the rubber ring 1, and the length of the rubber ring 23 is consistent with the total length of the rubber column 2 and the two sliding rubber rings 8. The interiors of the two sliding rubber rings 8 and the left and right ends of the interiors of the rubber ring 23 are fixedly connected with steel rings 29.

[0029] The length of the rubber ring 2 3 is consistent with the total length of the rubber column 2 and the two sliding rubber rings 8 to achieve a better sealing effect. The rubber ring 2 3 and the two sliding rubber rings 8 are stretched apart by four steel rings 2 9 so that the rubber ring 2 3 and the sliding rubber rings 8 will not be deformed.

[0030] Reference Figure 2 and Figure 3 A reinforcing rib 4 is fixedly connected to the inner middle portion of the rubber column 2.

[0031] The rubber column 2 is propped up by the reinforcing ribs 4 to prevent the rubber column 2 from deforming at high temperatures.

[0032] Working principle: By placing the sealing device on the component that needs to be sealed, and then filling a certain amount of gas into the airbag 12 to expand the airbag 12, the distance between the rubber ring 1 and the rubber ring 3 6 increases, and the sealed component is supported to prevent fluid leakage; by releasing a part of the gas inside the airbag 12, the distance between the rubber ring 1 and the rubber ring 3 6 will be reduced, and the sealing isolation device can be easily removed; the rubber ring 1 1, rubber ring 3 6, rubber ring 2 3, sliding rubber ring 8 and rubber column 2 are supported by the steel ring 1 5, steel ring 2 9 and reinforcing ribs 4 respectively, which can prevent the sealing isolation device from deformation.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing and isolating ring device for high-temperature environments, comprising a first rubber ring (1), characterized in that: The middle of the bottom end of the rubber ring one (1) is fixedly connected with a rubber column (2). The bottom end of the rubber column (2) is fixedly connected with a rubber ring two (3). A rubber ring three (6) is arranged at the bottom end of the rubber ring two (3). Rubber vertical rings (7) are fixedly connected to the left and right sides of the rubber ring two (3) at the top of the rubber ring three (6). Sliding rubber rings (8) are fixedly connected to the left and right sides of the rubber column (2) at the opposite ends of the rubber vertical rings (7). The sliding rubber rings (8) are respectively slidably connected to the left and right sides of the rubber column (2). A cavity (10) is formed between the bottom of the rubber ring two (3) and the top of the rubber ring three (6). An expansion assembly is arranged inside the cavity (10). The expansion assembly expands at high temperatures to make the connection between the sealing isolation ring and the sealed component closer.

2. The sealing and isolating ring device for high-temperature environment according to claim 1, characterized in that: The expansion assembly includes an elastic explosion-proof layer (11). The outer side of the elastic explosion-proof layer (11) is attached to the inner wall of the cavity (10). An airbag (12) is arranged inside the elastic explosion-proof layer (11). A nozzle (13) is fixedly connected to one side of the outer end of the airbag (12). A pinhole (14) is opened at the outer end of the nozzle (13).

3. A sealing and isolating ring device for high-temperature environments according to claim 2, characterized in that: The outer ends of the rubber ring two (3) and the pinhole (14) penetrate through the elastic explosion-proof layer (11) and the outer rubber vertical ring (7). The pinhole (14) is communicated with the inside of the airbag (12).

4. A sealing and isolating ring device for high-temperature environments according to claim 1, characterized in that: The length of the rubber ring one (1) is the same as that of the rubber ring three (6). Steel rings one (5) are fixedly connected to the left and right inner ends of the rubber ring one (1) and the left and right inner ends of the rubber ring three (6).

5. A sealing and isolating ring device for a high-temperature environment according to claim 1, characterized in that: The length of the rubber ring two (3) is less than that of the rubber ring one (1). The length of the rubber ring two (3) is the same as the total length of the rubber column (2) and the two sliding rubber rings (8).

6. The sealing and isolating ring device for high-temperature environment according to claim 1, characterized in that: Steel rings two (9) are fixedly connected to the left and right inner ends of the two sliding rubber rings (8) and the left and right inner ends of the rubber ring two (3).

7. A sealing and isolating ring device for high-temperature environments according to claim 1, characterized in that: A reinforcing rib (4) is fixedly connected to the middle of the inner side of the rubber column (2).

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