High-temperature silicone rubber sealing ring suitable for extreme environment

Abstract

The utility model discloses a high-temperature silicone rubber sealing ring suitable for extreme environment, which relates to the technical field of sealing rings and comprises a sealing ring body, an air cavity is arranged in the sealing ring body, an air inlet pipe is fixedly connected onto the side wall of the sealing ring body, the inside of the air inlet pipe is communicated with the air cavity, and the air inlet pipe is communicated with the air cavity. The tail end of the air inlet pipe is fixedly connected with an air inlet connector, an air inlet hole is formed in the axis of the air inlet connector, the air inlet hole is communicated with the interior of the air inlet pipe, a first sealing mechanism is arranged in the air inlet hole, and a second sealing mechanism is arranged at an opening of the air inlet hole. By means of the unique structural design, after the inflation type sealing ring is inflated, when inflation equipment needs to be disassembled, primary sealing of the air inlet hole can be completed at the moment of disassembling, and the situation that air in the sealing ring body flows out in the process that an air inlet nozzle of the inflation equipment is drawn out is avoided.

Description

A high-temperature silicone rubber seal suitable for extreme environments Technical Field

[0001] This utility model relates to the field of sealing ring technology, specifically a high-temperature silicone rubber sealing ring suitable for extreme environments. Background Technology

[0002] Sealing rings play a vital role in various equipment and machinery. They form a sealing barrier at the joints of different components, preventing liquids (such as oil, water, and chemical solutions) or gases (such as air, steam, and fuel gas) from leaking from one chamber to another or to the outside of the equipment, thus ensuring the system's sealing and integrity.

[0003] An inflatable sealing ring is a type of sealing ring with a hollow interior and an inflation / deflation valve. It achieves sealing and release by inflating and deflation. After inflation, the air inlet of the inflation device needs to be removed from the inflatable sealing ring's inflation / deflation valve, and then the valve is sealed using a sealing mechanism. However, significant gas leakage occurs during this process. Therefore, a high-temperature silicone rubber sealing ring suitable for extreme environments is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a high-temperature silicone rubber sealing ring suitable for extreme environments, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature silicone rubber sealing ring suitable for extreme environments, comprising a sealing ring body, an air chamber provided inside the sealing ring body, an air inlet pipe fixedly connected to the side wall of the sealing ring body, the interior of the air inlet pipe communicating with the air chamber, an air inlet connector fixedly connected to the end of the air inlet pipe, an air inlet hole provided at the axial center of the air inlet connector, the air inlet hole communicating with the interior of the air inlet pipe, a first sealing mechanism provided inside the air inlet hole, and a second sealing mechanism provided at the opening of the air inlet hole.

[0006] As a further preferred embodiment of this technical solution, the first sealing mechanism comprises a sealing block, a movable plate, and springs. The sealing block is located inside the air inlet. A groove that matches the sealing block is formed on the inner wall of one end of the air inlet. The movable plate is fixedly connected to the end of the sealing block away from the groove. The movable plate is slidably installed in a movable groove formed inside the air inlet connector. Two springs are fixedly connected between the side wall of the movable plate and the inner wall of the movable groove. A disassembly mechanism is provided at the end of the movable plate away from the sealing block.

[0007] As a further preferred embodiment of this technical solution, the disassembly mechanism includes a connecting plate and a connecting rod. The connecting rod is fixedly connected to the side wall of the movable plate away from the sealing block. The other end of the connecting rod slides through the air intake connector and extends to the outside of the air intake connector. The extended end of the connecting rod is fixedly connected to the connecting plate.

[0008] As a further preferred embodiment of this technical solution, the connecting plate has an arc-shaped structure, and an arc-shaped groove for receiving the connecting plate is provided on the outer wall of the air inlet connector, the length of the arc-shaped groove being greater than the length of the connecting plate.

[0009] As a further preferred embodiment of this technical solution, the second sealing mechanism includes a sealing plug, which is adapted to the air inlet, and a handle is fixedly connected to one end of the sealing plug.

[0010] As a further preferred embodiment of this technical solution, the end of the air intake connector is provided with a storage groove for storing the handle, and the handle is provided with cuts on its two side walls.

[0011] As a further preferred embodiment of this technical solution, both the sealing ring body and the air intake pipe are made of silicone rubber.

[0012] This invention provides a high-temperature silicone rubber sealing ring suitable for extreme environments, which has the following advantages:

[0013] This utility model, through its unique structural design, can achieve initial sealing of the air inlet at the moment of disassembly when the inflatable sealing ring needs to be disassembled after inflation, thus preventing gas from leaking out of the sealing ring body during the process of pulling out the air inlet of the inflation device. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 is a cross-sectional schematic diagram of the overall structure of this utility model;

[0016] Figure 3 is a schematic diagram of the structure of the air intake pipe and air intake connector in this utility model;

[0017] Figure 4 is a cross-sectional schematic diagram of Figure 3 in this utility model;

[0018] Figure 5 is a split diagram of Figure 4 in this utility model.

[0019] In the diagram: 1. Sealing ring body; 2. Air inlet pipe; 3. Air inlet connector; 4. Air chamber; 5. Connecting plate; 6. Arc groove; 7. Sealing block; 8. Movable plate; 9. Spring; 10. Movable groove; 11. Connecting rod; 12. Slot; 13. Sealing plug; 14. Handle; 15. Storage slot; 16. Cutout; 17. Air inlet. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] The present invention provides the following technical solution: As shown in Figures 1 to 5, in this embodiment, a high-temperature silicone rubber sealing ring suitable for extreme environments includes a sealing ring body 1, an air chamber 4 is provided inside the sealing ring body 1, an air inlet pipe 2 is fixedly connected to the side wall of the sealing ring body 1, the interior of the air inlet pipe 2 is in communication with the air chamber 4, an air inlet connector 3 is fixedly connected to the end of the air inlet pipe 2, an air inlet hole 17 is provided at the axial center of the air inlet connector 3, the air inlet hole 17 is in communication with the interior of the air inlet pipe 2, a first sealing mechanism is provided inside the air inlet hole 17, and a second sealing mechanism is provided at the opening of the air inlet hole 17.

[0022] The first sealing mechanism comprises a sealing block 7, a movable plate 8, and springs 9. The sealing block 7 is located inside the air inlet 17. A groove 12 that matches the sealing block 7 is provided on the inner wall of one end of the air inlet 17. The movable plate 8 is fixedly connected to the end of the sealing block 7 away from the groove 12. The movable plate 8 is slidably installed in the movable groove 10 opened inside the air inlet connector 3. Two springs 9 are fixedly connected between the side wall of the movable plate 8 and the inner wall of the movable groove 10. A disassembly mechanism is provided at the end of the movable plate 8 away from the sealing block 7.

[0023] The disassembly mechanism includes a connecting plate 5 and a connecting rod 11. The connecting rod 11 is fixedly connected to the side wall of the movable plate 8 away from the sealing block 7. The other end of the connecting rod 11 slides through the air inlet connector 3 and extends to the outside of the air inlet connector 3. The extended end of the connecting rod 11 is fixedly connected to the connecting plate 5.

[0024] In use, pull the connecting plate 5 away from the air inlet connector 3, causing the connecting rod 11, the movable plate 8, and the sealing block 7 to move synchronously, so that the sealing block 7 enters the movable groove 10. At this time, the movable plate 8 will compress the spring 9, and the air inlet 17 will be in the open state. The operator can inflate the air inlet 17 through the inflation device. After inflation is completed, pull out the air inlet nozzle of the inflation device. Under the action of the spring 9 restoring its deformation, the sealing block 7 will block the air inlet 17 again, thereby initially sealing the air inlet connector 3.

[0025] Among them, the connecting plate 5 has an arc-shaped structure, and the outer wall of the air inlet connector 3 has an arc-shaped groove 6 for receiving the connecting plate 5. The length of the arc-shaped groove 6 is greater than the length of the connecting plate 5.

[0026] The arc-shaped groove 6 can accommodate the connecting plate 5, ensuring that the outer surface of the air inlet connector 3 will not bulge. The length of the arc-shaped groove 6 is greater than the length of the connecting plate 5, which ensures that the two ends of the connecting plate 5 inside the arc-shaped groove 6 are empty, making it convenient for the staff to grip the connecting plate 5.

[0027] The second sealing mechanism includes a sealing plug 13, which is adapted to the air inlet 17. One end of the sealing plug 13 is fixedly connected to a handle 14.

[0028] After the sealing block 7 initially seals the air inlet 17, the sealing plug 13 is inserted into the open end of the air inlet 17 to further seal the air inlet 17. The handle 14 provided allows the staff to easily pick up the sealing plug 13.

[0029] The air inlet connector 3 has a storage groove 15 at its end, which is used to store the handle 14. The handle 14 has cutouts 16 on its two side walls.

[0030] The handle 14 can be stored in the storage slot 15, and the cutout 16 on the handle 14 makes it easy for staff to grip the handle 14.

[0031] Both the sealing ring body 1 and the air intake pipe 2 are made of silicone rubber.

[0032] Silicone rubber maintains good elasticity and sealing performance in a temperature range of -50℃ to 200℃, has excellent high and low temperature resistance, and can adapt to extreme high temperature environments.

[0033] This invention provides a high-temperature silicone rubber sealing ring suitable for extreme environments. Its specific working principle is as follows:

[0034] When in use, the sealing ring body 1 is installed on the part of the equipment to be sealed. The inner wall of the sealing part usually has a through hole extending to the outer wall of the equipment. This through hole is used to accommodate the air inlet pipe 2 (this through hole will be blocked by the sealing ring body 1, and will also be blocked by the air inlet pipe 2 after inflation, so there is no need to worry about leakage). It is convenient to place the air inlet connector 3 outside the device, so that the staff can easily inflate or deflate the sealing ring body 1.

[0035] During inflation, pull the connecting plate 5 away from the air inlet connector 3, causing the connecting rod 11, the movable plate 8, and the sealing block 7 to move synchronously, so that the sealing block 7 enters the movable groove 10. At this time, the movable plate 8 will compress the spring 9, and the air inlet 17 will be in the open state. The operator can inflate the air inlet 17 through the inflation device. After inflation is completed, pull out the air inlet nozzle of the inflation device. Under the action of the spring 9 restoring its deformation, the sealing block 7 will re-block the air inlet 17, thereby initially sealing the air inlet connector 3 and preventing the gas inside the sealing ring body 1 from flowing out during the process of pulling out the air inlet nozzle of the inflation device. Finally, insert the sealing plug 13 into the open end of the air inlet 17 to further seal the air inlet 17.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature silicone rubber sealing ring suitable for extreme environments, comprising a sealing ring body (1), characterized in that: The sealing ring body (1) has an air chamber (4) inside. An air inlet pipe (2) is fixedly connected to the side wall of the sealing ring body (1). The inside of the air inlet pipe (2) is in communication with the air chamber (4). An air inlet connector (3) is fixedly connected to the end of the air inlet pipe (2). An air inlet hole (17) is opened at the axis of the air inlet connector (3). The air inlet hole (17) is in communication with the inside of the air inlet pipe (2). A first sealing mechanism is provided inside the air inlet hole (17). A second sealing mechanism is provided at the opening of the air inlet hole (17).

2. The high-temperature silicone rubber sealing ring suitable for extreme environments according to claim 1, characterized in that: The first sealing mechanism comprises a sealing block (7), a movable plate (8), and a spring (9). The sealing block (7) is located inside the air inlet (17). A groove (12) adapted to the sealing block (7) is provided on the inner wall of one end of the air inlet (17). The movable plate (8) is fixedly connected to the end of the sealing block (7) away from the groove (12). The movable plate (8) is slidably installed in the movable groove (10) opened inside the air inlet connector (3). Two springs (9) are fixedly connected between the side wall of the movable plate (8) and the inner wall of the movable groove (10). A disassembly mechanism is provided at the end of the movable plate (8) away from the sealing block (7).

3. A high-temperature silicone rubber sealing ring suitable for extreme environments according to claim 2, characterized in that: The disassembly mechanism includes a connecting plate (5) and a connecting rod (11). The connecting rod (11) is fixedly connected to the side wall of the movable plate (8) away from the sealing block (7). The other end of the connecting rod (11) slides through the air inlet connector (3) and extends to the outside of the air inlet connector (3). The extended end of the connecting rod (11) is fixedly connected to the connecting plate (5).

4. A high-temperature silicone rubber sealing ring suitable for extreme environments according to claim 3, characterized in that: The connecting plate (5) has an arc-shaped structure, and the outer wall of the air inlet connector (3) is provided with an arc-shaped groove (6) for receiving the connecting plate (5). The length of the arc-shaped groove (6) is greater than the length of the connecting plate (5).

5. A high-temperature silicone rubber sealing ring suitable for extreme environments according to claim 1, characterized in that: The second sealing mechanism includes a sealing plug (13), which is adapted to the air inlet (17), and a handle (14) is fixedly connected to one end of the sealing plug (13).

6. A high-temperature silicone rubber sealing ring suitable for extreme environments according to claim 5, characterized in that: The end of the air inlet connector (3) is provided with a storage groove (15) for storing the handle (14). The handle (14) has cutouts (16) on its two side walls.

7. A high-temperature silicone rubber sealing ring suitable for extreme environments according to claim 1, characterized in that: Both the sealing ring body (1) and the air inlet pipe (2) are made of silicone rubber.

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