Water hammer preventing device for water supply equipment
By setting the support and limit ends in the sealing ring of the water supply equipment, the problems of leakage of the pressure regulating valve sealing ring and cracking of the diaphragm are solved, and sealing and stability during long-term use are achieved.
Patent Information
- Application Number
- CN202421676396.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The sealing effect of the pressure regulating valve of existing water supply equipment becomes worse after long-term use, resulting in leakage, and the lack of limiting the diaphragm leads to frequent cracking.
A waterproof hammer device for water supply equipment is designed to enhance the sealing effect by providing support and limiting ends in the sealing ring, and limiting the deformation of the diaphragm through the limiting ends to prevent cracking.
It effectively improves the sealing properties of the sealing ring, avoids gaps after wear, prevents diaphragm cracking, and ensures stable operation of the water supply system.
Smart Images
Figure CN223165117U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water supply devices, in particular to a water hammer prevention device for a water supply equipment. Background Art
[0002] A non-negative pressure water supply equipment is a pressurized water supply unit, which is directly connected to the municipal water supply pipe network and supplies water in series and superimposed pressure on the basis of the remaining pressure of the municipal pipe network to ensure that the pressure of the municipal pipe network is not less than the set protection pressure for secondary pressurized water supply equipment. There are two types of non-negative pressure water supply equipment: tank type non-negative pressure water supply equipment and box type non-negative pressure water supply equipment. The box type non-negative pressure water supply equipment has a storage tank for storing water in addition to a steady flow tank. The types of non-negative pressure water supply equipment are diverse.
[0003] When the water supply equipment supplies water, a water hammer effect will be generated, and the water hammer effect will cause certain harm to the water supply system. In order to avoid the influence of the water hammer effect on the water supply system, a pressure regulating valve can be installed on the water supply equipment. By adjusting the water pressure to an appropriate range, the generation of water hammer can be effectively reduced or avoided. However, the common problems in the use of the existing pressure regulating valve are that the sealing effect at the sealing ring deteriorates after long-term use, gaps will appear at the sealing part, which affects the normal use of the pressure regulating valve, and there is no limit for the diaphragm in the valve, so that the diaphragm is prone to cracking. Content of the Utility Model
[0004] The purpose of the utility model is to solve the problems that the sealing effect at the sealing ring deteriorates and leakage occurs after long-term use of the pressure regulating valve mentioned in the above background art, and there is no limit for the diaphragm in the valve, so that the diaphragm is prone to cracking.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A water hammer prevention device for a water supply equipment includes a valve body, a valve cover is installed on the valve body, a diaphragm is provided at the connection between the valve body and the valve cover, an adjusting member for adjusting the water pressure is provided in the valve cover, the adjusting member includes a screw rod, an adjusting plate is provided at the inner end of the screw rod, the screw rod is in threaded fit with the upper end of the valve cover, a spring is provided below the adjusting plate. By rotating the screw rod, the adjusting plate can be moved to adjust the extrusion force on the spring, so as to adjust the water pressure flowing out of the valve body. A valve core is movably provided in the valve body, a sealing plate is provided below the valve core, a closed end is provided in the valve body to divide the inner cavity of the valve body into left and right two chambers, a water passing hole is opened on the closed end, a sealing ring I is provided on the closed end, a sealing ring II is provided on the sealing plate, the sealing ring I and the sealing ring II are attached to form a seal, and a supporting member is provided in the sealing ring I.
[0007] Preferably, an elastic cavity is provided inside the first sealing ring, and the supporting member is arranged in the elastic cavity. The first sealing ring can have better deformation force through the elastic cavity, and the first sealing ring and the second sealing ring can form a better seal through the supporting member.
[0008] Preferably, extension ends are respectively provided at the upper and lower ends of the supporting member, and fixing grooves are provided at the upper and lower ends inside the elastic cavity. The upper and lower ends of the supporting member are respectively located in the two fixing grooves.
[0009] Preferably, the supporting member itself has a certain elasticity, and the supporting member has a large reaction force through its own elasticity, which can push the first sealing end to better press against the second sealing groove.
[0010] Preferably, a first sealing groove adapted to the second sealing end is provided on the first sealing ring, and a second sealing groove adapted to the first sealing end is provided on the second sealing ring. The sealing effect between the first sealing ring and the second sealing ring can be improved through the first sealing end and the second sealing end.
[0011] Preferably, the first sealing end corresponds to the position of the supporting member, so that the supporting member can better push the first sealing end to press against the second sealing groove.
[0012] Preferably, the outer side edge of the diaphragm is squeezed and clamped between the valve body and the valve cover. The inner side of the diaphragm is connected to the valve core. A backing plate is provided above the valve core, and the backing plate is connected to the valve core through bolts. The inner side of the diaphragm is located between the backing plate and the valve core, and the inner side of the diaphragm is squeezed and clamped on the valve core through the backing plate.
[0013] Preferably, sealing ends three are provided on both the upper and lower sides of the diaphragm, and sealing grooves three are provided on the side where the valve body is connected to the valve cover. The sealing ends three on both sides of the diaphragm are respectively located in the sealing grooves three on the valve body and the valve cover. The sealing performance when the valve body and the valve cover squeeze and clamp the diaphragm can be improved through the sealing ends three.
[0014] Preferably, a limiting end is provided inside the valve body, a through hole is provided on the limiting end, the valve core is located in the through hole, the limiting end is used for limiting the diaphragm, the valve core can move in the through hole, and the deformation of the diaphragm can be limited through the limiting end to prevent the diaphragm from being prone to cracking due to large deformation.
[0015] Preferably, the cross section of the supporting member is V-shaped. The V-shaped supporting member can better deform and has good resilience.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] In the utility model, the first sealing ring and the second sealing ring form a good sealing effect through the first sealing end and the second sealing end, and a supporting member is arranged inside the first sealing ring, so that the first sealing ring and the second sealing ring still have a good sealing effect even under certain wear conditions, and no gap will be formed to affect the use of the pressure regulating valve;
[0018] The set limiting ends can limit the deformation of the diaphragm, prevent the diaphragm from deforming greatly, and prevent the diaphragm from cracking easily after long-term use. Description of the Drawings
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0020] Figure 1 Schematic diagram of the overall structure of the present invention;
[0021] Figure 2 Cross-sectional view of the present invention;
[0022] Figure 3 Of the present invention Figure 2 Enlarged view of part A;
[0023] Figure 4 Of the present invention Figure 2 Enlarged view of part B;
[0024] Figure 5 Structural view of seal ring one of the present invention;
[0025] Figure 6 Structural view of seal ring two of the present invention.
[0026] Explanation of drawing numbers: 1. Valve cover; 2. Valve body; 21. Closed end; 22. Seal ring one; 221. Elastic cavity; 222. Support member; 223. First sealing end; 224. First sealing groove; 23. Limiting end; 3. Screw; 4. Adjusting plate; 5. Spring; 6. Base plate; 7. Diaphragm; 71. Third sealing end; 8. Valve core; 9. Sealing plate; 10. Seal ring two; 101. Second sealing end; 102. Second sealing groove. Detailed Description of the Preferred Embodiment
[0027] The present invention will be further described in detail below with reference to the drawings.
[0028] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description can be used in other embodiments, variations, improvements, equivalent embodiments, and other technical solutions that do not depart from the spirit and scope of the present invention.
[0029] Those skilled in the art should understand that in the disclosure of the present utility model, the orientations or positions indicated by the terms "longitudinal", "lateral", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or position relationships shown in the drawings. These are only for the convenience of simplifying the description of the present utility model and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present utility model.
[0030] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "one" should not be construed as a limitation on the quantity. Embodiment
[0031] Please refer to Figures 1-6 , a water supply equipment water hammer prevention device, including a valve body 2, a valve cover 1 is installed on the valve body 2, a diaphragm 7 is provided at the connection between the valve body 2 and the valve cover 1, an adjusting member for adjusting the water pressure is provided in the valve cover 1. The adjusting member includes a screw rod 3, an adjusting plate 4 is provided at the inner end of the screw rod 3, the screw rod 3 is in threaded fit connection with the upper end of the valve cover 1, a spring 5 is provided below the adjusting plate 4. By rotating the screw rod 3, the adjusting plate 4 can be moved to adjust the extrusion force on the spring 5, thereby adjusting the water pressure size flowing out of the valve body 2. A valve core 8 is movably provided in the valve body 2, a sealing plate 9 is provided below the valve core 8, a closed end 21 is provided in the valve body 2 to divide the inner cavity of the valve body 2 into left and right two chambers, a water passing hole is opened on the closed end 21, a sealing ring one 22 is provided on the closed end 21, a sealing ring two 10 is provided on the sealing plate 9, the sealing ring one 22 and the sealing ring two 10 are attached to form a seal, and a support member 222 is provided in the sealing ring one 22.
[0032] An elastic cavity 221 is provided in the sealing ring one 22, the support member 222 is arranged in the elastic cavity 221, and the sealing ring one 22 can have better deformation force through the elastic cavity 221. Through the support member 222, the sealing ring one 22 and the sealing ring two 10 can form a better seal.
[0033] Extension ends are respectively provided at the upper and lower ends of the support member 222, fixing grooves are respectively provided at the upper and lower ends in the elastic cavity 221, and the upper and lower ends of the support member 222 are respectively located in the two fixing grooves.
[0034] The support member 222 itself has a certain elasticity, and through its own elasticity, it has a large reaction force, which can push the sealing end one 223 to better press in the sealing groove two 102.
[0035] A sealing groove one 224 adapted to the second sealing end 101 is provided on the first sealing ring 22, and a sealing groove two 102 adapted to the first sealing end 223 is provided on the second sealing ring 10. The sealing effect between the first sealing ring 22 and the second sealing ring 10 can be improved through the first sealing end 223 and the second sealing end 101.
[0036] The first sealing end 223 corresponds to the position of the support member 222, so that the support member 222 can better push the first sealing end 223 to be extruded in the second sealing groove 102.
[0037] The outer side of the diaphragm 7 is squeezed and clamped between the valve body 2 and the valve cover 1. The inner side of the diaphragm 7 is connected to the valve core 8. A backing plate 6 is provided above the valve core 8. The backing plate 6 is connected to the valve core 8 by bolts. The inner side of the diaphragm 7 is located between the backing plate 6 and the valve core 8. The inner side of the diaphragm 7 is squeezed and clamped on the valve core 8 through the backing plate 6.
[0038] Sealing ends three 71 are provided on both the upper and lower sides of the diaphragm 7. Sealing grooves three are provided on one side of the valve body 2 and the valve cover 1 where they are connected. The sealing ends three 71 on both sides of the diaphragm 7 are respectively located in the sealing grooves three on the valve body 2 and the valve cover 1. The sealing performance when the valve body 2 and the valve cover 1 squeeze and clamp the diaphragm 7 can be improved through the sealing ends three 71.
[0039] A limiting end 23 is provided inside the valve body 2. A through hole is provided on the limiting end 23. The valve core 8 is located in the through hole. The limiting end 23 is used for limiting the diaphragm 7. The valve core 8 can move in the through hole. The deformation of the diaphragm 7 can be limited through the limiting end 23, avoiding the phenomenon that the diaphragm 7 is prone to cracking due to large deformation.
[0040] The cross-section of the support member 222 is V-shaped. The V-shaped support member 222 can better deform and has good resilience.
[0041] The use process of a water hammer prevention device for a water supply device provided by the present utility model is as follows: When in use, water flows into the valve body 2. As the pressure in the valve body 2 below the diaphragm 7 increases, the sealing plate 9 moves downward, causing a gap to be generated between the first sealing ring 22 and the second sealing ring 10. The water flows through the gap, and the pressure of the outflowing water changes. By rotating the screw 3, the extrusion distance between the adjusting plate 4 and the spring 5 can be adjusted, and the pressure of the spring 5 pushing the valve core 8 can be adjusted, so as to adjust the water pressure of the outflowing water. By adjusting the water pressure to an appropriate range, the generation of water hammer can be effectively reduced or avoided;
[0042] The first sealing ring 22 and the second sealing ring 10 form a seal. When the first sealing ring 22 contacts the second sealing ring 10, the second sealing ring 10 exerts a certain squeezing force on the first sealing ring 22. The support member 222 has a certain elasticity itself. When the support member 222 is squeezed by the second seal, it can have a greater reaction force through its own elasticity, which can push the first sealing end 223 to better squeeze in the second sealing groove 102, enabling a better seal between the first sealing ring 22 and the second sealing ring 10. Even after the sealing surfaces of the first sealing ring 22 and the second sealing ring 10 are worn after long-term use, there can still be a good sealing effect between the first sealing end 223 pushed by the support member 222 and the second sealing ring 10, and it is not easy to generate gaps;
[0043] The diaphragm 7 can be limited in its deformation through the limiting end 23, which can prevent the diaphragm 7 from deforming greatly and prevent the diaphragm 7 from being prone to cracking after long-term use.
[0044] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the said principles, the embodiments of the present invention can have any deformation or modification.
Claims
1. A water hammer prevention device for a water supply device, comprising a valve body (2), a valve cover (1) is installed on the valve body (2), a diaphragm (7) is provided at the connection between the valve body (2) and the valve cover (1), an adjustment for regulating water pressure is provided inside the valve cover (1), a valve core (8) is movably provided inside the valve body (2), a sealing plate (9) is provided below the valve core (8), a closed end (21) is provided inside the valve body (2) to divide the inner cavity of the valve body (2) into left and right chambers, and a water passing hole is formed on the closed end (21), characterized in that: A first sealing ring (22) is provided on the closed end (21), a second sealing ring (10) is provided on the sealing plate (9), the first sealing ring (22) and the second sealing ring (10) are fitted to form a seal, and a support member (222) is provided inside the first sealing ring (22).
2. The water hammer prevention device for a water supply equipment according to claim 1, wherein: An elastic cavity (221) is provided inside the first sealing ring (22), and the support member (222) is arranged in the elastic cavity (221).
3. The water hammer prevention device for a water supply device according to claim 2, characterized in that: Extension ends are respectively provided at the upper and lower ends of the support member (222), fixing grooves are respectively provided at the upper and lower ends inside the elastic cavity (221), and the upper and lower ends of the support member (222) are respectively located in the two fixing grooves.
4. The water hammer prevention device for a water supply equipment according to claim 3, wherein: The support member (222) itself has a certain elasticity.
5. The water hammer prevention device for a water supply device according to claim 1, wherein: A first sealing groove (224) adapted to the second sealing end (101) is formed on the first sealing ring (22), and a second sealing groove (102) adapted to the first sealing end (223) is formed on the second sealing ring (10).
6. The water hammer prevention device for a water supply device according to claim 5, characterized in that: The first sealing end (223) corresponds to the position of the support member (222).
7. A water supply equipment water hammer prevention device according to claim 6, characterized in that: The outer side edge of the diaphragm (7) is squeezed and clamped between the valve body (2) and the valve cover (1), and the inner side of the diaphragm (7) is connected to the valve core (8).
8. A water supply equipment water hammer prevention device according to claim 7, characterized in that: Third sealing ends (71) are provided on both the upper and lower sides of the diaphragm (7), third sealing grooves are respectively formed on one side of the valve body (2) and the valve cover (1) where they are connected, and the third sealing ends (71) on both sides of the diaphragm (7) are respectively located in the third sealing grooves on the valve body (2) and the valve cover (1).
9. The water hammer prevention device for a water supply device according to claim 8, characterized in that: A limiting end (23) is provided inside the valve body (2), a through hole is formed on the limiting end (23), the valve core (8) is located in the through hole, and the limiting end (23) is used for limiting the diaphragm (7).
10. A water supply equipment water hammer prevention device according to claim 9, characterized in that: The cross-section of the support member (222) is V-shaped.