Reinforced high-temperature-resistant sealing element

Abstract

The utility model discloses a reinforced type high-temperature-resistant sealing element which comprises a pressure-relief shell mechanism, a circulation sealing mechanism and a sealing auxiliary mechanism, and the pressure-relief shell mechanism comprises an upper shell, a lower shell, an inner shell, a pressure relief spring, a pressure relief groove and a limiting block. The circulation sealing mechanism comprises a circulation pipe, an inclined block, a sliding block, a sealing plate, a threaded frame, a threaded rod, a rotating frame and a rotating sleeve, and the sealing auxiliary mechanism comprises a threaded sleeve, a thrust bearing, a directional sleeve, a plug pin, a reset spring and a pin groove. The design of the inner shell and the pressure relief spring allows the system to automatically adjust according to internal pressure changes, accurate flow adjustment is achieved through the rotating sleeve and the threaded mechanism, the adjustable sealing plate provides reliable sealing performance, fluid control becomes simple and visual through the external operating mechanism, and the circulation state can be rapidly adjusted according to different working requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing, and more particularly to a reinforced high-temperature resistant sealing component. Background Art

[0002] A reinforced high-temperature resistant seal is an advanced sealing solution specially designed for high-temperature and high-pressure environments. The seal combines high-performance materials and innovative structural design to provide excellent sealing performance and durability. It is particularly suitable for harsh working conditions in industrial equipment, aerospace, chemical industry and other fields.

[0003] In the existing technology, firstly, some devices cannot automatically release excessive internal pressure, which may cause equipment damage or explosion, and cannot cope with internal pressure changes, affecting the sealing performance and service life. The lack of support from the inner shell and the pressure relief spring may make the overall structure fragile and difficult to adapt to high-pressure or pressure-fluctuating working environments. It is impossible to perform pressure regulation and internal inspection through the pressure relief mechanism. Secondly, some devices cannot accurately adjust the flow rate of the fluid and lack an adjustable sealing plate, which may cause leakage. The fluid flow cannot be controlled by external operation, and it is difficult to adjust the flow state according to different working requirements. The lack of multiple protection mechanisms increases the possibility of failure and leakage, making it difficult to adapt to different working environments and operating requirements. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the problems existing in the prior art, the present invention provides a reinforced high-temperature resistant seal to solve the technical problems mentioned in the background art, such as the inability to automatically release excessive internal pressure and the inability to accurately adjust the flow rate of the fluid.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reinforced high-temperature resistant sealing member, comprising a pressure-relief shell mechanism, a circulation sealing mechanism and a sealing auxiliary mechanism. The pressure-relief shell mechanism comprises an upper shell, a lower shell, an inner shell, a pressure relief spring, a pressure relief groove and a limit block, wherein the two ends of the inner shell are slidably connected with the inner wall of the upper shell and the inner wall of the lower shell, the pressure relief spring is arranged inside the upper shell and the lower shell and is connected with the inner shell, the pressure relief groove is arranged on the upper shell and the lower shell, the limit block is arranged on the outer wall of the inner shell, and the limit block cooperates with the sliding guide arrangement in the pressure relief groove. The circulation sealing mechanism comprises a circulation pipe, an inclined block, a sliding block, a sealing plate, a threaded frame, a threaded rod, a rotating frame and a rotating sleeve, the inclined block is arranged on the inner wall of the circulation pipe, the sliding block is slidably guided on the inclined block, the rotating sleeve is rotatably arranged at one end of the circulation pipe, the rotating frame and the rotating sleeve are linked, one end of the threaded frame cooperates with the sliding block to push the threaded rod, the threaded rod is arranged at one end of the rotating frame, and the threaded rod cooperates with the threaded frame to be threadedly connected.

[0008] The utility model is further configured as follows: the sealing auxiliary mechanism includes a threaded sleeve, a thrust bearing, a directional sleeve, a latch, a return spring and a pin groove; the threaded sleeve is cooperatively arranged on the outer wall of the circulation tube; the thrust bearing is mounted on the top end face of the threaded sleeve; the directional sleeve cooperates and slides in a directional manner on the outer wall of the circulation tube; one end of the return spring is mounted on the top of the directional sleeve, and the other end can be arranged in contact with the rotating sleeve; the latch is mounted on the top end of the directional sleeve; the pin groove is arranged on the side wall of the rotating sleeve; one end of the latch can be extended into the pin groove to fix the rotating sleeve to ensure the stability of the seal.

[0009] The utility model is further configured such that a matching plate is installed on the side wall of the lower shell, and a connecting pipe is installed on one end of the lower shell, which is fixedly connected to an external device through the connecting pipe and the matching plate. The matching plate and the connecting pipe are convenient for connection with external devices, thereby increasing applicability.

[0010] The utility model is further configured such that an inner fixing plate is installed on the inner walls of the upper shell and the lower shell, and one end of the pressure relief spring is cooperatively supported and connected with one end of the inner fixing plate. The inner fixing plate provides stable support for the pressure relief spring to ensure the reliability of the pressure relief function.

[0011] The utility model is further configured such that a connecting plate is installed at the bottom of the flow pipe, and the connecting plate is cooperatively connected with the top end of the upper shell to fix the flow pipe and the upper shell. The connecting plate fixes the flow pipe and the upper shell to enhance the stability of the overall structure.

[0012] The utility model is further configured such that a limiting plate is installed on the inner wall of one end of the circulation tube, and a reverse thrust spring is installed on the top of the limiting plate and the bottom of the sliding block. The limiting plate and the sealing plate moved to the bottom seal the circulation tube. The limiting plate and the reverse thrust spring provide additional sealing and buffering functions, thereby increasing the sealing reliability.

[0013] The utility model is further configured such that a guide groove is provided on the inner wall of the circulation tube, and a guide block is installed on the outer end of the threaded rack, and the guide block cooperates with the sliding guide arrangement in the guide groove. The guide groove and the guide block ensure the smooth movement of the threaded rack and improve the accuracy of the sealing adjustment.

[0014] The utility model is further configured such that there are multiple groups of pressure relief grooves, and the internal pressure drives the upper shell to move, so that the pressure relief grooves are connected with the internal space to cooperate in pressure relief. The multiple groups of pressure relief grooves provide multiple pressure relief channels to enhance the pressure relief effect.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a reinforced high-temperature resistant seal with the following beneficial effects:

[0017] The utility model is provided with a pressure-relief shell mechanism, and the automatic pressure relief function effectively prevents equipment damage or accidents caused by excessive internal pressure. The design of the inner shell and the pressure relief spring allows the system to automatically adjust according to changes in internal pressure. The inner shell and the pressure relief spring provide additional support, increase the stability of the overall structure, and can adapt to high-pressure or pressure-fluctuating working environments. The pressure relief mechanism facilitates pressure adjustment and internal inspection, and multiple groups of pressure relief grooves provide multiple pressure relief channels to further enhance safety.

[0018] The utility model is provided with a circulation sealing mechanism, which realizes precise flow adjustment by rotating the sleeve and the threaded mechanism. The adjustable sealing plate provides reliable sealing performance. The external operating mechanism makes fluid control simple and intuitive, and the circulation state can be quickly adjusted according to different working requirements. The threaded adjustment mechanism and guide design ensure fine control. The reverse thrust spring provides additional sealing and buffering functions to increase reliability.

[0019] The utility model is provided with a sealing auxiliary mechanism, a latch locking mechanism to ensure that the set sealing state will not be accidentally changed, the locking function reduces the risk of misoperation, thrust bearings and other components improve the smoothness and accuracy of adjustment, return springs and other buffer components reduce parts wear, and multiple protection mechanisms increase the reliability of the overall system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the device in the present invention when not in use;

[0021] Figure 2 This is a schematic structural diagram of the pressure relief housing mechanism in the present invention;

[0022] Figure 3 This is a schematic diagram of the structure inside the pressure relief housing mechanism of the present invention;

[0023] Figure 4It is a structural diagram of the circulation sealing mechanism and the sealing auxiliary mechanism in the utility model;

[0024] Figure 5 It is a schematic diagram of the internal structure of the circulation sealing mechanism and the sealing auxiliary mechanism in the utility model.

[0025] In the figure: 1. Upper shell; 2. Lower shell; 3. Inner shell; 4. Pressure relief spring; 5. Pressure relief groove; 6. Limit block; 7. Flow pipe; 8. Tilt block; 9. Sliding block; 10. Sealing plate; 11. Threaded frame; 12. Threaded rod; 13. Rotating frame; 14. Rotating sleeve; 15. Threaded sleeve; 16. Thrust bearing; 17. Orienting sleeve; 18. Pin; 19. Return spring; 20. Pin groove; 21. Matching plate; 22. Connecting pipe; 23. Inner fixing plate; 24. Connecting plate; 25. Limiting plate; 26. Back thrust spring; 27. Guide groove; 28. Guide block. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0029] See also Figure 1-5, a reinforced high-temperature resistant seal, including a pressure-relief shell mechanism, a circulation sealing mechanism and a sealing auxiliary mechanism. The pressure-relief shell mechanism includes an upper shell 1, a lower shell 2, an inner shell 3, a pressure relief spring 4, a pressure relief groove 5 and a limit block 6. The two ends of the inner shell 3 are slidably connected with the inner wall of the upper shell 1 and the inner wall of the lower shell 2. The pressure relief spring 4 is arranged inside the upper shell 1 and the lower shell 2 and is connected to the inner shell 3. The pressure relief groove 5 is arranged on the upper shell 1 and the lower shell 2. The limit block 6 is installed on the outer wall of the inner shell 3. The limit block 6 slides in the pressure relief groove 5. The circulation sealing mechanism includes a circulation tube 7, an inclined block 8, a sliding block 9, a sealing plate 10, a threaded frame 11, a threaded rod 12, a rotating frame 13 and a rotating sleeve 14. The inclined block 8 is installed on the inner wall of the circulation tube 7, the sliding block 9 is slidingly guided on the inclined block 8, the rotating sleeve 14 is rotatably installed at one end of the circulation tube 7, the rotating frame 13 and the rotating sleeve 14 are linked together, one end of the threaded frame 11 is pushed in conjunction with the sliding block 9, the threaded rod 12 is installed at one end of the rotating frame 13, and the threaded rod 12 is threadedly connected to the threaded frame 11.

[0030] In this embodiment, the inner shell 3 maintains a fixed position between the upper shell 1 and the lower shell 2, and the pressure relief spring 4 is in a normal state. When the internal pressure increases, the inner shell 3 is forced to move upward, driving the pressure relief spring 4. When the inner shell 3 moves upward, the limit block 6 slides in the pressure relief groove 5. When the pressure reaches a certain level, the pressure relief groove 5 is connected to the internal space to achieve pressure relief. After the pressure is released, the pressure relief spring 4 pushes the inner shell 3 back to its original position, restoring the sealing state. The sealing plate 10 is in the closed position to prevent the fluid from passing through. The rotating sleeve 14 is rotated to drive the rotating frame 13 to rotate. The rotating frame 13 drives the threaded rod 12 to rotate. The threaded connection between the threaded rod 12 and the threaded frame 11 causes the threaded frame 11 to move upward. The threaded frame 11 pushes the sliding block 9. The sliding block 9 slides on the tilting block 8, driving the sealing plate 10 to move upward, opening the circulation channel, and the rotating sleeve 14 is rotated in the opposite direction to reverse the above process, so that the sealing plate 10 returns to the closed position.

[0031] The sealing auxiliary mechanism includes a threaded sleeve 15, a thrust bearing 16, a directional sleeve 17, a pin 18, a return spring 19 and a pin groove 20. The threaded sleeve 15 is arranged on the outer wall of the circulation tube 7, the thrust bearing 16 is installed on the top end face of the threaded sleeve 15, and the directional sleeve 17 slides in a directional manner on the outer wall of the circulation tube 7. One end of the return spring 19 is installed on the top of the directional sleeve 17, and the other end can be arranged in contact with the rotating sleeve 14. The pin 18 is installed on the top end of the directional sleeve 17, and the pin groove 20 is set on the side wall of the rotating sleeve 14. One end of the pin 18 can be extended into the pin groove 20 to fix the rotating sleeve 14 to ensure the stability of the seal.

[0032] In this embodiment, the latch 18 is not inserted into the pin groove 20, the rotating sleeve 14 can rotate freely, pushing the directional sleeve 17, compressing the return spring 19, and the latch 18 extends into the pin groove 20 on the side wall of the rotating sleeve 14, locking the rotating sleeve 14, pulling the directional sleeve 17, and the return spring 19 pushes the directional sleeve 17 back to its original position. The latch 18 exits the pin groove 20, and the rotating sleeve 14 resumes its free rotation state.

[0033] See also Figure 1-5 , as a supplementary embodiment of a reinforced high-temperature resistant seal for a pressure-relief housing mechanism, a circulation sealing mechanism, and a sealing auxiliary mechanism: a matching plate 21 is installed on the side wall of the lower housing 2, and a connecting pipe 22 is installed at one end of the lower housing 2, which is fixedly connected to an external device through the connecting pipe 22 and the matching plate 21, an inner fixing plate 23 is installed on the inner wall of the upper housing 1 and the lower housing 2, and one end of the pressure-relief spring 4 is supported and connected with one end of the inner fixing plate 23, a connecting plate 24 is installed at the bottom of the circulation pipe 7, and the connecting plate 24 is matched with the top end of the upper housing 1. The flow tube 7 is fixed to the upper shell 1, and a limiting plate 25 is installed on the inner wall of one end of the flow tube 7, and a reverse thrust spring 26 is installed on the top of the limiting plate 25 and the bottom of the sliding block 9. The limiting plate 25 and the sealing plate 10 moved to the bottom seal the flow tube 7. A guide groove 27 is provided on the inner wall of the flow tube 7, and a guide block 28 is installed on the outer end of the threaded frame 11, and the guide block 28 cooperates with the sliding guide arrangement in the guide groove 27. There are multiple groups of pressure relief grooves 5. The internal pressure pushes the upper shell 1 to move, so that the pressure relief groove 5 is connected to the internal space to cooperate with pressure relief.

[0034] More specifically, the device is fixed to an external device through the connecting pipe 22 and the matching plate 21 of the lower shell 2, and the circulation pipe 7 is fixedly connected to the upper shell 1 through the connecting plate 24. The fluid flows through the circulation pipe 7, and the sealing plate 10 controls the circulation. The rotating sleeve 14 is rotated to adjust the position of the sealing plate 10 to control the flow. If the sealing plate 10 is closed, it needs to be locked at this time, and the sealing auxiliary mechanism is used to lock the rotating sleeve 14. When the internal pressure increases, the pressure relief shell mechanism automatically adjusts, and the inner shell 3 moves up. If necessary, the pressure is relieved through the pressure relief groove 5. The upper and lower shells 2 can be disassembled for internal inspection and maintenance. Multiple sets of pressure relief grooves 5 ensure effective pressure relief under different pressures. The guide groove 27 and the guide block 28 ensure the smooth movement of the threaded rack 11, thereby improving the accuracy of the adjustment of the sealing plate 10.

[0035] In summary, when the overall equipment is in use or operating: when the pressure relief shell mechanism needs to be operated, the inner shell 3 maintains a fixed position between the upper shell 1 and the lower shell 2, and the pressure relief spring 4 is in a normal state. When the internal pressure increases, the inner shell 3 is forced to move upward, driving the pressure relief spring 4. When the inner shell 3 moves upward, the limit block 6 slides in the pressure relief groove 5. When the pressure reaches a certain level, the pressure relief groove 5 is connected to the internal space to achieve pressure relief. After the pressure is released, the pressure relief spring 4 pushes the inner shell 3 back to its original position and restores the sealed state.

[0036] When the circulation sealing mechanism needs to be operated, the sealing plate 10 is in the closed position to prevent the fluid from passing through. The rotating sleeve 14 is rotated to drive the rotating frame 13 to rotate. The rotating frame 13 drives the threaded rod 12 to rotate. The threaded connection between the threaded rod 12 and the threaded frame 11 causes the threaded frame 11 to move upward. The threaded frame 11 pushes the sliding block 9, and the sliding block 9 slides on the tilting block 8, driving the sealing plate 10 to move upward, opening the circulation channel. The rotating sleeve 14 is rotated in the opposite direction to reverse the above process and return the sealing plate 10 to the closed position.

[0037] When the sealing auxiliary mechanism needs to be operated, the latch 18 is not inserted into the pin groove 20, the rotating sleeve 14 can rotate freely, push the directional sleeve 17, compress the return spring 19, and the latch 18 extends into the pin groove 20 on the side wall of the rotating sleeve 14, locking the rotating sleeve 14, pulling the directional sleeve 17, the return spring 19 pushes the directional sleeve 17 back to its original position, the latch 18 exits the pin groove 20, and the rotating sleeve 14 resumes the free rotation state.

[0038] The device is fixed to the external device through the connecting pipe 22 and the matching plate 21 of the lower shell 2. The circulation pipe 7 is fixedly connected to the upper shell 1 through the connecting plate 24. The fluid flows through the circulation pipe 7. The sealing plate 10 controls the circulation. The rotating sleeve 14 is rotated to adjust the position of the sealing plate 10 to control the flow. If the sealing plate 10 is closed, it needs to be locked at this time. The sealing auxiliary mechanism is used to lock the rotating sleeve 14. When the internal pressure increases, the pressure relief shell mechanism automatically adjusts and the inner shell 3 moves up. If necessary, the pressure is relieved through the pressure relief groove 5. The upper and lower shells 2 can be disassembled for internal inspection and maintenance. Multiple sets of pressure relief grooves 5 ensure effective pressure relief under different pressures. The guide groove 27 and the guide block 28 ensure the smooth movement of the threaded rack 11 and improve the accuracy of the adjustment of the sealing plate 10.

[0039] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A reinforced high temperature resistant seal, characterized by: The invention comprises a pressure relief shell mechanism, a circulation sealing mechanism and a sealing auxiliary mechanism, wherein the pressure relief shell mechanism comprises an upper shell (1), a lower shell (2), an inner shell (3), a pressure relief spring (4), a pressure relief groove (5) and a limit block (6), the two ends of the inner shell (3) are slidably connected to the inner wall of the upper shell (1) and the inner wall of the lower shell (2), the pressure relief spring (4) is arranged inside the upper shell (1) and the lower shell (2) and connected to the inner shell (3), the pressure relief groove (5) is arranged on the upper shell (1) and the lower shell (2), the limit block (6) is installed on the outer wall of the inner shell (3), and the circulation sealing mechanism comprises a circulation pipe ( 7), a tilting block (8), a sliding block (9), a sealing plate (10), a threaded frame (11), a threaded rod (12), a rotating frame (13) and a rotating sleeve (14), wherein the tilting block (8) is mounted on the inner wall of the circulation tube (7), the sliding block (9) is arranged to slide and guide on the tilting block (8), the rotating sleeve (14) is rotatably mounted on one end of the circulation tube (7), the rotating frame (13) and the rotating sleeve (14) are arranged in a linkage manner, one end of the threaded frame (11) is arranged to cooperate with the sliding block (9) to push, the threaded rod (12) is mounted on one end of the rotating frame (13), and the threaded rod (12) and the threaded frame (11) are threadedly connected.

2. The reinforced high-temperature resistant seal according to claim 1, characterized in that: The sealing auxiliary mechanism comprises a threaded sleeve (15), a thrust bearing (16), a directional sleeve (17), a latch (18), a return spring (19) and a pin groove (20); the threaded sleeve (15) is arranged on the outer wall of the circulation tube (7); the thrust bearing (16) is mounted on the top end surface of the threaded sleeve (15); the directional sleeve (17) slides in a directional manner on the outer wall of the circulation tube (7); one end of the return spring (19) is mounted on the top of the directional sleeve (17) and the other end can be arranged in contact with the rotating sleeve (14); the latch (18) is mounted on the top end of the directional sleeve (17); and the pin groove (20) is arranged on the side wall of the rotating sleeve (14).

3. The reinforced high-temperature resistant seal according to claim 1, characterized in that: A matching plate (21) is installed on the side wall of the lower shell (2), and a connecting pipe (22) is installed at one end of the lower shell (2), which is fixedly connected to an external device through the connecting pipe (22) and the matching plate (21).

4. The reinforced high-temperature resistant seal according to claim 1, characterized in that: An inner fixing plate (23) is installed on the inner walls of the upper shell (1) and the lower shell (2), and one end of the pressure relief spring (4) is matched with and supported by one end of the inner fixing plate (23).

5. The reinforced high-temperature resistant seal according to claim 1, characterized in that: A connecting plate (24) is installed at the bottom of the circulation tube (7), and the connecting plate (24) is matched and connected with the top end of the upper shell (1) to fix the circulation tube (7) and the upper shell (1).

6. The reinforced high-temperature resistant seal according to claim 1, characterized in that: A limiting plate (25) is installed on the inner wall of one end of the circulation tube (7), and a reverse thrust spring (26) is installed on the top of the limiting plate (25) and the bottom of the sliding block (9). The limiting plate (25) and the sealing plate (10) moved to the bottom seal the circulation tube (7).

7. The reinforced high-temperature resistant seal according to claim 1, characterized in that: A guide groove (27) is provided on the inner wall of the circulation pipe (7), and a guide block (28) is installed on the outer end of the threaded frame (11), and the guide block (28) is provided in a sliding guide arrangement in the guide groove (27).

8. The reinforced high-temperature resistant seal according to claim 1, characterized in that: The pressure relief grooves (5) are provided in multiple groups, and the internal pressure drives the upper shell (1) to move, so that the pressure relief grooves (5) are connected with the internal space to cooperate with pressure relief.

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