Waterproof hammer type exhaust valve
By designing a water hammer-type air vent valve, and utilizing components such as an air vent chamber, a water hammer barrier, and a limit slide groove, the problem of easy damage to existing air vent valves is solved, achieving effective water hammer protection and reducing the risk of leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HUAMU ENVIRONMENTAL ENG CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-24
AI Technical Summary
Existing air release valves are easily damaged in the pipeline network due to excessive water hammer force or violent air intake, losing their protective function and causing frequent water leakage.
A water hammer-type exhaust valve was designed, which includes components such as an exhaust chamber, a water hammer barrier, a limiting groove, and a sealing ring. By concentrating gas discharge, limiting guidance, sealing, and absorbing pressure fluctuations, it reduces the impact of water hammer effect on the device.
This effectively prevents damage to the device due to water hammer, improves its service life and waterproof performance, and reduces the occurrence of leaks.
Smart Images
Figure CN224162161U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of exhaust valve technology, specifically a water-resistant hammer-type exhaust valve. Background Technology
[0002] In liquid pipeline networks, air vents play a crucial role. They are commonly used to improve the efficiency of the conveying system, extend the service life of the pipeline network, and protect equipment and pipelines within the network from water hammer and vacuum effects.
[0003] Based on the above, the inventors have discovered the following problems: Exhaust valves currently on the market often break their internal float connecting rods when the water hammer force in the pipeline is too great or when air is violently introduced. As a result, the exhaust valve loses its function of protecting the pipeline and leaks a lot of water, making it inconvenient to use.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a waterproof hammer-type exhaust valve in order to achieve a more practical purpose. Utility Model Content
[0005] The purpose of this invention is to provide a waterproof hammer-type exhaust valve to solve the problems mentioned in the background art.
[0006] A waterproof hammer type vent valve includes a vent valve assembly. The vent valve assembly has a venting component at its top and a waterproof hammer component inside its bottom. The vent valve assembly includes a vent chamber, inside which is a valve body assembly. A first limiting groove is formed on the inner side of the vent chamber, and a sealing portion is formed at the top of the inner side of the vent chamber. The valve body assembly includes a first float, and a first limiting slider is fixedly installed on the outer side of the first float. The first limiting slider is slidably connected to the first limiting groove. A first sealing ring is fixedly installed on the top of the first float, and a first venting groove is formed on the outer side of the first float. The waterproof hammer assembly includes a waterproof hammer barrier cover, and water-permeable holes are formed on the surface of the waterproof hammer barrier cover.
[0007] By adopting the above technical solution, the exhaust chamber facilitates the concentration of gas in the pipeline, allowing the valve body assembly to discharge gas. The first limiting groove helps to limit and guide the movement of the first float. The first limiting slider limits the rise and fall of the first float. The first sealing ring allows the first float to rise when there is no gas in the exhaust chamber, causing the sealing ring to abut against the sealing part and preventing liquid in the pipeline from being discharged. The first vent groove connects the top and bottom of the first float when there is air in the exhaust chamber and the liquid level is insufficient to support the first float to rise, facilitating gas discharge. The water hammer barrier absorbs pressure fluctuations when water hammer occurs in the pipeline, reducing the impact of water hammer on the device.
[0008] Furthermore, an installation groove is provided at the bottom of the inner side of the exhaust chamber, and a retaining spring is provided at the bottom of the waterproof hammer barrier cover, with the retaining spring located inside the installation groove.
[0009] By adopting the above technical solution and using the snap ring, it is easy to fix the waterproof hammer barrier cover at the bottom of the exhaust chamber.
[0010] Furthermore, a float groove is provided in the middle of the first float, and a second float is provided inside the float groove.
[0011] By adopting the above technical solution, the float slot facilitates the installation of a second float inside the first float.
[0012] Furthermore, the second float is provided with a second sealing ring at its top, the second sealing ring is disposed inside the float groove, and the top of the second sealing ring abuts against the inner side of the top of the float groove.
[0013] By adopting the above technical solution and setting the second sealing ring, it is easy to seal the float groove when there is no air inside the exhaust chamber, thus preventing liquid leakage.
[0014] Furthermore, a second limiting slider is provided on the outer side of the second float, and a limiting ring is provided at the top of the outer side of the second float.
[0015] By adopting the above technical solution, the setting of the second limiting slider and the limiting ring facilitates the guidance and limiting of the up and down movement of the second float.
[0016] Furthermore, a second limiting groove is provided on the inner side of the float groove, and the second limiting groove is slidably connected to the second limiting slider.
[0017] By adopting the above technical solution, the setting of the second limiting slide groove facilitates the descent of the second float when there is a small amount of air inside the exhaust chamber, but the liquid level is not low enough to cause the first float to descend. The buoyancy of the second float is smaller than that of the first float, making it more sensitive to the liquid level, which facilitates the discharge of a small amount of gas while preventing liquid leakage.
[0018] Furthermore, a second ventilation groove is provided between the second limiting slide grooves, and a connecting groove is provided at the top of the inner side of the float groove.
[0019] By adopting the above technical solution, the second venting groove and the connecting groove facilitate the connection between the top and bottom of the first float when the second float descends, so as to facilitate the discharge of gas.
[0020] Furthermore, a screw hole is provided at the top of the exhaust chamber, a fixing groove is provided at the top of the sealing part, a pressure measuring interface is provided on one side of the exhaust chamber, a pressure measuring valve is provided in the middle of the pressure measuring interface, and a first connecting flange is provided on the outer side of the bottom end of the exhaust chamber.
[0021] By adopting the above technical solution, the setting of the pressure measuring interface facilitates the connection of external pressure measuring equipment, and the internal air pressure of the exhaust chamber is detected when the pressure measuring valve is opened. The first connecting flange facilitates the installation of the device.
[0022] Furthermore, the exhaust assembly includes an exhaust pipe, and a second connecting flange is provided on the outer side of the bottom end of the exhaust pipe. A threaded hole is formed on the surface of the second connecting flange, and a fixing screw is inserted into the threaded hole. The fixing screw is threadedly connected to the threaded hole. By adopting the above technical solution, the fixing screw facilitates the fixed connection between the exhaust pipe and the exhaust chamber, allowing for the convenient discharge of gas from the pipeline. A baffle mesh is provided inside the exhaust pipe to prevent external objects from entering.
[0023] Furthermore, the bottom end of the second connecting flange is provided with a flow restrictor, which is located inside the fixing groove, and a vent hole is provided in the middle of the flow restrictor.
[0024] By adopting the above technical solution and setting the flow limiter, it is easy to limit the flow rate of the discharged gas, thereby slowing down the rising or falling speed of the first and second floats and preventing them from being damaged by impact due to rapid movement caused by water hammer.
[0025] Compared with the prior art, the beneficial effects of this utility model are as follows: the exhaust chamber facilitates the concentration of gas in the pipeline, making it convenient for the valve body assembly to discharge gas; the first limiting groove facilitates the limitation and guidance of the movement of the first float; the first limiting slider facilitates the limitation of the rise and fall of the first float; the first sealing ring facilitates the float to rise when there is no gas in the exhaust chamber, allowing the first sealing ring to abut against the sealing part and preventing liquid in the pipeline from being discharged; the first vent groove facilitates the discharge of gas when there is air in the exhaust chamber and the liquid level is insufficient to support the float to rise, as the first vent groove connects the top and bottom of the first float; and the water hammer barrier cover absorbs pressure fluctuations and reduces the impact of water hammer on the device when water hammer occurs in the pipeline. This utility model can effectively prevent the device from being damaged by water hammer and has high practical value. Attached Figure Description
[0026] Figure 1 This is a three-dimensional structural diagram of a waterproof hammer-type exhaust valve according to the present invention;
[0027] Figure 2 This is a cross-sectional view of the exhaust valve assembly of this utility model;
[0028] Figure 3 This is an exploded view of the valve body assembly of this utility model;
[0029] Figure 4 This is an exploded view of the waterproof hammer assembly of this utility model;
[0030] Figure 5 This is an exploded view of the exhaust assembly of this utility model.
[0031] In the diagram: 1. Exhaust valve assembly; 11. Exhaust chamber; 12. Pressure testing interface; 13. Pressure testing valve; 14. First connecting flange; 15. Screw hole; 16. Mounting groove; 17. Sealing part; 18. First limit slide groove; 19. Fixing groove; 2. Exhaust assembly; 21. Exhaust pipe; 22. Second connecting flange; 23. Screw hole; 24. Fixing screw; 25. Flow restrictor; 26. Vent hole; 3. Valve body assembly; 301 302. First float; 303. First limiting slider; 304. First vent groove; 305. First sealing ring; 306. Float groove; 307. Second limiting slide groove; 308. Second vent groove; 309. Connecting groove; 310. Second float; 311. Second limiting slider; 312. Limiting ring; 313. Second sealing ring; 4. Water hammer assembly; 41. Water hammer barrier cover; 42. Water permeable hole; 43. Snap ring. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Please see Figures 1-5 This utility model provides a technical solution: a waterproof hammer type exhaust valve, including an exhaust valve assembly 1, an exhaust component 2 at the top of the exhaust valve assembly 1, and a waterproof hammer component 4 inside the bottom end of the exhaust valve assembly 1. The exhaust valve assembly 1 includes an exhaust chamber 11, which facilitates the collection of gas in the pipeline and the discharge of gas by the valve body assembly 3. The valve body assembly 3 is located inside the exhaust chamber 11, and a first limiting groove 18 is provided on the inner side of the exhaust chamber 11. The first limiting groove 18 facilitates the limitation and guidance of the movement of the first float 301. A sealing part 17 is provided at the top of the inner side of the exhaust chamber 11. The valve body assembly 3 includes a first float 301, and a first limiting slider 302 is fixedly installed on the outer side of the first float 301. The first limiting slider 302 facilitates the limitation of the rise and fall of the first float 301. The first limiting slider 302 and the first limiting groove 18 are connected. 8. A sliding connection is provided. A first sealing ring 304 is fixedly installed on the top of the first float 301. The first sealing ring 304 allows the first float 301 to float when there is no gas inside the exhaust chamber 11, so that the first sealing ring 304 abuts against the sealing part 17, preventing the liquid in the pipeline from being discharged. A first venting groove 303 is provided on the outer side of the first float 301. The first venting groove 303 connects the top and bottom of the first float 301 when there is air inside the exhaust chamber 11 and the liquid level is insufficient to support the first float 301 to float, facilitating the discharge of gas. The water hammer assembly 4 includes a water hammer barrier 41. The surface of the water hammer barrier 41 is provided with water permeable holes 42. The water hammer barrier 41 absorbs pressure fluctuations when water hammer occurs inside the pipeline, reducing the impact of water hammer on the device. The exhaust chamber 11 has an installation groove 16 at the bottom of its inner side, and the waterproof hammer barrier cover 41 has a retaining spring 43 at its bottom. The retaining spring 43 is located inside the installation groove 16. The retaining spring 43 facilitates the fixed installation of the waterproof hammer barrier cover 41 at the bottom of the exhaust chamber 11.
[0034] The first float 301 has a float groove 305 in the middle, and a second float 309 is provided inside the float groove 305. The float groove 305 facilitates the placement of the second float 309 inside the first float 301.
[0035] The second float 309 is provided with a second sealing ring 312 at its top. The second sealing ring 312 is located inside the float groove 305, and the top of the second sealing ring 312 abuts against the inner side of the top of the float groove 305. The second sealing ring 312 is provided to seal the float groove 305 when there is no air inside the exhaust chamber 11, so as to avoid liquid leakage.
[0036] The second float 309 is provided with a second limiting slider 310 on its outer side, and a limiting ring 311 is provided at the top of the outer side of the second float 309. The setting of the second limiting slider 310 and the limiting ring 311 facilitates the guidance and limiting of the up and down movement of the second float 309.
[0037] The float groove 305 has a second limiting slide groove 306 on its inner side. The second limiting slide groove 306 is slidably connected to the second limiting slider 310. The setting of the second limiting slide groove 306 makes it easy for the second float 309 to fall when there is a small amount of air in the exhaust chamber 11, but the liquid level is not low enough to make the first float 301 fall. The buoyancy of the second float 309 is smaller than that of the first float 301, and it is more sensitive to the liquid level, which facilitates the discharge of a small amount of gas and avoids liquid leakage.
[0038] The second venting groove 307 is provided between the second limiting slide grooves 306, and the connecting groove 308 is provided at the top of the inner side of the float groove 305. The second venting groove 307 and the connecting groove 308 facilitate the connection between the top and bottom of the first float 301 when the second float 309 descends, so as to facilitate the discharge of gas.
[0039] The exhaust chamber 11 has a screw hole 15 at its top, the sealing part 17 has a fixing groove 19 at its top, the exhaust chamber 11 has a pressure measuring interface 12 on one side, the pressure measuring interface 12 has a pressure measuring valve 13 in the middle, and the exhaust chamber 11 has a first connecting flange 14 on the outer side of its bottom end. The pressure measuring interface 12 facilitates the connection of external pressure measuring equipment. When the pressure measuring valve 13 is opened, the internal air pressure of the exhaust chamber 11 is detected. The first connecting flange 14 facilitates the installation of the device.
[0040] The exhaust assembly 2 includes an exhaust pipe 21. A second connecting flange 22 is provided on the outer side of the bottom end of the exhaust pipe 21. A screw hole 23 is provided on the surface of the second connecting flange 22. A fixing screw 24 is inserted inside the screw hole 23. The fixing screw 24 is threadedly connected to the screw hole 15. The setting of the fixing screw 24 makes it easy to fix the exhaust pipe 21 to the exhaust chamber 11, so as to facilitate the discharge of gas inside the pipe. A baffle is provided inside the exhaust pipe 21 to prevent external objects from entering.
[0041] The second connecting flange 22 is provided with a flow restrictor 25 at its bottom end. The flow restrictor 25 is located inside the fixed groove 19, and a vent hole 26 is provided in the middle of the flow restrictor 25. The flow restrictor 25 is used to limit the flow rate of the discharged gas, thereby slowing down the rising or falling speed of the first float 301 and the second float 309 and preventing them from being damaged by the impact of water hammer.
[0042] Specifically, the working principle of this type of waterproof hammer exhaust valve is as follows: During use, the pressure testing interface 12 facilitates connection to external pressure testing equipment. When the pressure testing valve 13 is opened, the internal air pressure of the exhaust chamber 11 is detected. The first connecting flange 14 facilitates installation of the device. The fixing screws 24 facilitate the fixed connection between the exhaust pipe 21 and the exhaust chamber 11, allowing gas to be discharged from the pipeline. A baffle mesh is installed inside the exhaust pipe 21 to prevent external objects from entering. The flow limiter 25 restricts the flow rate of the discharged gas, thus slowing the rise or fall of the first float 301 and the second float 309. The speed is controlled to prevent damage caused by rapid movement due to water hammer impact. The exhaust chamber 11 facilitates the collection of gas in the pipeline, allowing the valve body assembly 3 to discharge gas. The first limiting slide groove 18 limits and guides the movement of the first float 301. The first limiting slider 302 limits the rise and fall of the first float 301. The first sealing ring 304 ensures that when there is no gas in the exhaust chamber 11, the first float 301 rises, causing the first sealing ring 304 to abut against the sealing part 17, preventing liquid in the pipeline from being discharged. The first vent... The design of the vent 303 facilitates the discharge of air when there is air inside the exhaust chamber 11 and the liquid level is insufficient to support the first float 301. The vent 303 connects the top and bottom of the first float 301. The waterproof hammer barrier 41 absorbs pressure fluctuations and reduces the impact of water hammer on the device when water hammer occurs inside the pipeline. The snap ring 43 secures the waterproof hammer barrier 41 to the bottom of the exhaust chamber 11. The float vent 305 allows for the installation of a second float 309 inside the first float 301. The second sealing ring 312 is designed to seal the float groove 305 when there is no air inside the exhaust chamber 11, thus preventing liquid leakage. The second limiting slider 310 and the limiting ring 311 are designed to guide and limit the up and down movement of the second float 309. The second limiting groove 306 is designed to allow the second float 309 to descend when there is a small amount of air inside the exhaust chamber 11, but the liquid level is not low enough to cause the first float 301 to descend. The buoyancy of the second float 309 is smaller than that of the first float 301, making it more sensitive to the liquid level and facilitating the discharge of a small amount of gas while preventing liquid leakage.
[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A waterproof hammer-type exhaust valve, characterized in that, The system includes an exhaust valve assembly (1), an exhaust component (2) on the top of the exhaust valve assembly (1), a water hammer component (4) inside the bottom of the exhaust valve assembly (1), an exhaust chamber (11) inside the exhaust chamber (11), a valve body assembly (3) inside the exhaust chamber (11), a first limiting groove (18) on the inner side of the exhaust chamber (11), a sealing part (17) at the top of the inner side of the exhaust chamber (11), and a first float (301). The first float (301) is fixedly installed with a first limiting slider (302) on its outer side. The first limiting slider (302) is slidably connected with the first limiting groove (18). The first float (301) is fixedly installed with a first sealing ring (304) on its top. The first float (301) is provided with a first venting groove (303) on its outer side. The waterproof hammer assembly (4) includes a waterproof hammer barrier cover (41). The surface of the waterproof hammer barrier cover (41) is provided with water-permeable holes (42).
2. The waterproof hammer-type exhaust valve according to claim 1, characterized in that, The exhaust chamber (11) has an installation groove (16) at the bottom of its inner side, and the waterproof hammer barrier cover (41) has a retaining spring (43) at its bottom, which is located inside the installation groove (16).
3. The waterproof hammer-type exhaust valve according to claim 1, characterized in that, The first float (301) has a float groove (305) in the middle, and a second float (309) is provided inside the float groove (305).
4. A waterproof hammer-type exhaust valve according to claim 3, characterized in that, The second float (309) has a second sealing ring (312) at its top end. The second sealing ring (312) is located inside the float groove (305), and the top of the second sealing ring (312) abuts against the inner side of the top end of the float groove (305).
5. A waterproof hammer-type exhaust valve according to claim 4, characterized in that, The second float (309) is provided with a second limiting slider (310) on its outer side, and a limiting ring (311) is provided at the top of the outer side of the second float (309).
6. A waterproof hammer-type exhaust valve according to claim 5, characterized in that, The inner side of the float groove (305) is provided with a second limiting slide groove (306), and the second limiting slide groove (306) is slidably connected to the second limiting slider (310).
7. A waterproof hammer-type exhaust valve according to claim 6, characterized in that, A second ventilation groove (307) is provided between the second limiting slide groove (306), and a connecting groove (308) is provided at the top inner side of the float groove (305).
8. A waterproof hammer-type exhaust valve according to claim 1, characterized in that, The exhaust chamber (11) has a screw hole (15) at the top, the sealing part (17) has a fixing groove (19) at the top, the exhaust chamber (11) has a pressure measuring interface (12) on one side, the pressure measuring interface (12) has a pressure measuring valve (13) in the middle, and the exhaust chamber (11) has a first connecting flange (14) on the outer side of the bottom.
9. A waterproof hammer-type exhaust valve according to claim 1, characterized in that, The exhaust assembly (2) includes an exhaust pipe (21). A second connecting flange (22) is provided on the outer side of the bottom end of the exhaust pipe (21). A screw hole (23) is provided on the surface of the second connecting flange (22). A fixing screw (24) is inserted inside the screw hole (23). The fixing screw (24) is threadedly connected to the screw hole (15).
10. A waterproof hammer-type exhaust valve according to claim 9, characterized in that, The bottom end of the second connecting flange (22) is provided with a flow restrictor (25), which is located inside the fixing groove (19), and a vent hole (26) is provided in the middle of the flow restrictor (25).