Quick exhaust valve
By designing a combination of valve body, support sleeve and adjusting components, and utilizing the cooperation of spring and sealing seat, the flexible adjustment of the exhaust valve is achieved, solving the problem of improper exhaust control of existing exhaust valves in pressure fluctuation environments, and achieving the effects of rapid exhaust and leakage prevention.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUANCHENG ARES FLUID AUTOMATE CONTROL CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-21
AI Technical Summary
Existing exhaust valves cannot be flexibly adjusted according to different operating conditions and system pressure requirements, making it difficult to achieve effective exhaust control in environments with large pressure fluctuations, and easily leading to problems such as exhaust delay or premature exhaust.
A quick exhaust valve including a valve body, a support sleeve, and an adjustment component was designed. By cooperating with a spring and a sealing seat, the opening pressure of the sealing seat is adjusted by the preload of the spring, and the spring preload is changed by rotating the threaded sleeve, so as to achieve flexible adjustment of the opening pressure of the exhaust valve.
It enables flexible exhaust control based on different working conditions and system pressure requirements, prevents leakage and enables rapid exhaust, adapts to pressure fluctuations, and improves the adaptability and reliability of the exhaust valve.
Smart Images
Figure CN224150238U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of exhaust valve technology, and in particular to a fast exhaust valve. Background Technology
[0002] The main purpose of an exhaust valve is to prevent explosions in pipeline systems when the air pressure exceeds its maximum bearing capacity. When the air pressure reaches the working requirements of the exhaust valve, the exhaust valve will automatically open to release the air pressure in the pipeline, thus playing a protective role to a certain extent.
[0003] Existing exhaust valves cannot be flexibly adjusted according to different operating conditions and system pressure requirements, making it difficult to achieve exhaust control in working environments with large pressure fluctuations, and easily leading to problems such as exhaust delay or premature exhaust. Utility Model Content
[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:
[0005] A quick exhaust valve, comprising:
[0006] The valve body has an installation pipe connected to its top, an air outlet on its side wall, and an installation port at its bottom.
[0007] A support sleeve is installed in the mounting port, and an extension is provided at the top of the support sleeve;
[0008] The adjustment assembly includes a threaded sleeve threaded into the mounting tube, a movable rod movably inserted into the threaded sleeve, and a sealing seat fixedly disposed at the bottom of the movable rod and adapted to the extension portion. A spring is wound around the surface of the movable rod between the sealing seat and the bottom of the threaded sleeve.
[0009] As an improvement to the above technical solution, the bottom of the threaded sleeve is rotatably connected to an extrusion plate, and the inner wall of the extrusion plate is integrally formed with a limit block. The surface of the movable rod is provided with a limit groove that matches the limit block.
[0010] As an improvement to the above technical solution, the end face of the extension is higher than the top of the air outlet.
[0011] As an improvement to the above technical solution, the valve body is provided with a sealing ring between the support sleeves.
[0012] The beneficial effects of this utility model are:
[0013] When the initial intake pressure is low, the spring extends and the sealing seat fits tightly against the extension, preventing gas from being discharged from the outlet and ensuring that gas accumulates in the valve to prevent leakage. When the pressure inside the valve reaches a certain level, the gas thrust is greater than the spring force, the sealing seat moves upward and separates from the extension, and the gas can be quickly discharged from the outlet.
[0014] By rotating the threaded sleeve to adjust its position inside the installation pipe, the spring preload is changed, thereby flexibly adjusting the opening pressure of the exhaust valve according to different working conditions and system pressure requirements. Attached Figure Description
[0015] Figure 1 This is a front view of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the valve body of this utility model;
[0017] Figure 3 This is a schematic diagram of the connection between the extrusion plate and the movable rod of this utility model.
[0018] Reference numerals: 10, valve body; 11, air outlet; 12, mounting pipe; 20, support sleeve; 21, extension; 30, sealing seat; 31, movable rod; 32, threaded sleeve; 33, extrusion plate; 331, limit block; 34, spring. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0020] A quick exhaust valve, comprising:
[0021] The valve body 10 has an installation pipe 12 connected to its top, an air outlet 11 on its side wall, and an installation port at its bottom.
[0022] A support sleeve 20 is installed in the mounting opening, and an extension 21 is provided at the top of the support sleeve 20.
[0023] The adjustment assembly includes a threaded sleeve 32 threaded into the mounting tube 12, a movable rod 31 movably inserted into the threaded sleeve 32, and a sealing seat 30 fixedly disposed at the bottom of the movable rod 31 and adapted to the extension 21. A spring 34 is wound on the surface of the movable rod 31 between the sealing seat 30 and the bottom of the threaded sleeve 32.
[0024] Specifically, when air begins to enter the exhaust valve, the gas enters from the bottom of the support sleeve 20 and flows upward through the extension 21. At this time, due to the low pressure inside the exhaust valve, the spring 34 is in a naturally extended state. Under the action of the spring 34, the sealing seat 30 is tightly fitted onto the extension 21, preventing the gas from escaping from the outlet. The gas can only gradually accumulate inside the support sleeve 20. When the pressure inside the exhaust valve rises to a certain level, the upward thrust of the gas on the sealing seat 30 is greater than the elastic force of the spring 34. The sealing seat 30 overcomes the resistance of the spring 34 and moves upward, separating from the extension 21. The gas then enters the valve body 10 and the support sleeve 21 through the gap between the extension 21 and the sealing seat 30. The air is discharged quickly from the outlet 11 of the valve body 10 through the space between 0 and 0. By rotating the threaded sleeve 32, its position in the mounting pipe 12 can be adjusted. The change in the position of the threaded sleeve 32 will affect the preload of the spring 34. Rotating the threaded sleeve 32 to move it downward will compress the spring 34 and increase the elastic force of the spring 34. Then, a higher pressure is required in the exhaust valve to push the sealing seat 30 to open for exhaust. Conversely, rotating the threaded sleeve 32 to move it upward will reduce the preload of the spring 34. A lower pressure in the exhaust valve can open the sealing seat 30 for exhaust. This allows for the adjustment of the opening pressure of the exhaust valve to adapt to different working conditions and system pressure requirements, thereby achieving the purpose of rapid exhaust.
[0025] In one embodiment, a pressing plate 33 is rotatably connected to the bottom of the threaded sleeve 32. A limiting block 331 is integrally formed on the inner wall of the pressing plate 33. A limiting groove adapted to the limiting block 331 is opened on the surface of the movable rod 31. When the threaded sleeve 32 is rotated, the pressing plate 33 does not rotate with the threaded sleeve 32. Instead, with the cooperation of the limiting block 331 and the limiting groove, the pressing plate 33 moves up and down with the threaded sleeve 32, and the rotatable connection between the pressing plate 33 and the threaded sleeve 32 is avoided. This avoids unnecessary torque on the spring 34 when the threaded sleeve 32 is adjusted by rotating it, and effectively ensures the stability of the spring 34's performance.
[0026] In one embodiment, the end face of the extension 21 is higher than the top of the air outlet 11. When the exhaust valve is closed, that is, when the sealing seat 30 is tightly fitted with the extension 21, the end face of the extension 21 is higher than the end face of the air outlet 11, making it difficult for the gas discharged from the air outlet to flow back into the valve body 10, because the gas needs to overcome a certain height difference to flow back, which to some extent prevents the reverse flow of the gas.
[0027] In one embodiment, the valve body 10 is provided with a sealing ring between the support sleeve 20, which can effectively fill any gaps that may exist between the two, and can prevent external dust, moisture and other impurities from entering the space between the valve body 10 and the support sleeve 20, so as to avoid these impurities from damaging the internal adjustment components or affecting their normal operation.
[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.
Claims
1. A quick exhaust valve characterized by, include: The valve body (10) has an installation pipe (12) connected to its top, an air outlet is provided on the side wall of the valve body (10), and an installation port is provided at the bottom of the valve body. A support sleeve (20) is installed in the mounting port, and an extension (21) is provided at the top of the support sleeve (20). The adjustment assembly includes a threaded sleeve (32) threaded into the mounting tube (12), a movable rod (31) movably inserted into the threaded sleeve (32), and a sealing seat (30) fixedly disposed at the bottom of the movable rod (31) and adapted to the extension. A spring (34) is wound on the surface of the movable rod (31) between the sealing seat (30) and the bottom of the threaded sleeve (32).
2. A quick exhaust valve according to claim 1, characterized in that: The bottom of the threaded sleeve (32) is rotatably connected to an extrusion plate (33). The inner wall of the extrusion plate (33) is integrally formed with a limit block (331). The surface of the movable rod (31) is provided with a limit groove that matches the limit block (331).
3. A rapid exhaust valve according to claim 2, characterized in that: The end face of the extension (21) is higher than the top of the air outlet (11).
4. A rapid exhaust valve according to claim 1, characterized in that: The valve body (10) is provided with a sealing ring between the support sleeves (20).