Electric water valve

Abstract

The invention discloses an electric water valve, which belongs to the technical field of fluid control, and comprises a valve body, a sealing plate and a flashboard, the sealing plate horizontally slides on the inner wall of a sealing port in the valve body, a limiting block slides in the valve body, the sealing plate is provided with a limiting groove for the limiting block to insert, and one end, close to the sealing plate, of the limiting block is provided with an inclined surface; the limiting block is in sliding fit with the sealing plate through the slope. A sealing groove for inserting the sealing plate is formed in the gate plate; a plurality of first springs are arranged in the inner wall of the sealing opening in the valve body, and the two ends of each first spring are fixedly arranged on the sealing plate and the inner wall of the valve body correspondingly. A first driving assembly used for driving the limiting block to move and a reset assembly enabling the limiting block to reset are arranged in the valve body, and a second driving assembly used for driving the sealing plate to move is arranged on the gate plate. The valve has the advantages that friction between the flashboard and the sealing plate during descending is reduced, so that abrasion of the surfaces of the sealing plate and the flashboard is reduced, and the overall sealing performance of the valve is improved.

Description

Technical Field

[0001] The present application relates to the field of fluid control technology, and in particular to an electric water valve. Background Art

[0002] With the development of industrial automation and smart home, electric water valves, as an automatic control component, have been widely used in water supply systems, HVAC, irrigation systems, etc. Electric water valves include electric gate valves, electric ball valves, electric butterfly valves, etc. Among them, electric gate valves are widely used in various industrial and civil occasions due to their simple structure, convenient operation, and easy automatic control.

[0003] In the prior art, the electric gate valve includes a valve body, a gate plate, an electric device and a transmission mechanism. Sealing plates are provided at both ends of the sealing port in the valve body. The opposite sides of the gate plate slide on the surfaces of the two sealing plates respectively. A valve stem is provided on the gate plate. The valve stem moves up and down under the action of the electric device and the transmission mechanism. The up and down movement of the valve stem drives the gate plate to move up and down, thereby realizing the closing and opening of the valve.

[0004] However, when the gate is lowered to close, the side wall of the gate will contact the surface of the sealing plate, thereby generating friction. However, prolonged friction will cause wear of both the sealing plate and the gate surface, thereby affecting the overall sealing performance. Summary of the invention

[0005] In order to reduce the friction between the gate and the sealing plate when it descends, thereby reducing the wear of the sealing plate and the gate surface, and further improving the overall sealing performance of the valve, the present application provides an electric water valve.

[0006] The electric water valve provided in this application adopts the following technical solution: An electric water valve comprises a valve body, a sealing plate and a gate plate, wherein the sealing plate slides horizontally on the inner wall at the sealing port in the valve body, the valve body has a sliding limit block, a limit groove for the limit block to be inserted into the sealing plate is provided on the sealing plate, an inclined surface is provided on the end of the limit block close to the sealing plate, and the limit block is slidably matched with the sealing plate through the inclined surface; a sealing groove for the sealing plate to be inserted into is provided on the gate plate; a plurality of springs are provided in the inner wall at the sealing port in the valve body, and the two ends of the spring are respectively fixedly arranged on the sealing plate and the inner wall of the valve body; a first driving component for driving the limit block to move and a reset component for resetting the limit block are provided in the valve body, and a second driving component for driving the sealing plate to move is provided on the gate plate.

[0007] By adopting the above technical solution, the staff drives the gate plate to move downward, and before closing the gate plate, the sealing plate is located in the inner wall of the valve body sealing port, the spring 1 is in a compressed state, and the limit block is inserted in the limit groove on the sealing plate; when the gate plate moves downward to close the valve, the gate plate does not contact the sealing plate during movement, and then when the gate plate moves downward to the bottom end of the sealing port in the valve body, the gate plate can trigger the first drive component, and the first drive component can drive the limit block to move to a position away from the sealing plate, and when the sealing groove on the gate plate corresponds to the sealing plate, the elastic force of the spring 1 can push the sealing plate to be inserted into the sealing groove, so that the entire valve can be closed and sealed, and the limit block can be reset When the gate needs to be raised and opened, the sealing plate can be first pushed to move outwards of the gate by the second driving assembly until the sealing plate moves to the inner wall of the valve body sealing port. During this period, the sealing plate contacts the limit block and pushes the limit block to move through the inclined surface on the limit block. When the sealing plate moves to the position corresponding to the limit groove and the limit block, the limit block can be inserted into the limit groove on the sealing plate under the action of the reset assembly, thereby limiting the sealing plate again, and facilitating the gate to rise and open. The whole process reduces the friction between the gate and the sealing plate when it descends, thereby reducing the wear of the sealing plate and the surface of the gate, and thus improving the overall sealing performance of the valve.

[0008] Preferably, the first driving component includes a scraper and a push block 1, the scraper is fixedly arranged on the gate plate, the push block 1 slides horizontally on the limit block, and the scraper abuts against the push block 1; the scraper is slidably connected to the surface of the sealing plate.

[0009] By adopting the above technical solution, the scraper can firstly scrape off the impurities on the surface of the sealing plate during the rising and falling process, thereby improving the sealing between the sealing plate and the gate plate; at the same time, when the gate plate descends to the bottom end of the sealing port in the valve body, the scraper can contact the push block 1 and push the push block 1 to move downward, and the push block 1 can drive the limit block to move to a position away from the sealing plate, thereby reducing the difficulty of moving the limit block.

[0010] Preferably, the reset assembly includes a second spring and a third spring, the two ends of the second spring being fixedly arranged on the limit block and the inner wall of the valve body respectively; the two ends of the third spring being fixedly arranged on the limit block and the push block one respectively, the push block one is fixedly provided with an abutment block, the push block two is fixedly provided on the inner wall of the valve body, the push block two is provided with an inclined surface, and the push block two is slidably matched with the abutment block through the inclined surface; the push block one is provided with an inclined surface at one end close to the scraper, and the push block one is slidably matched with the scraper through the inclined surface.

[0011] By adopting the above technical solution, when the limit block moves to a position away from the sealing plate, the scraper continues to push the push block 1 to move downward, the spring 2 is always compressed, the abutment block on the push block 1 can contact the push block 2, and the push block 2 can push the abutment block and the push block 1 to move away from the scraper through the inclined surface, the spring 3 is compressed, and when the push block 1 moves to a position away from the scraper, the push block 1 is located above the scraper, and the spring 3 can push the push block 1 to a position directly above the scraper. At the same time, the elastic force of the spring 2 can push the limit block to move upward to the initial position, and then when the gate rises and opens, the scraper can rise and push the push block 1 to move through the inclined surface on the push block 1, the spring 3 is compressed, and when the scraper rises and moves to a position away from the push block 1, the elastic force of the spring 3 can push the push block 1 to the initial position, thereby reducing the difficulty of moving the gate and the scraper upward.

[0012] Preferably, a pressure relief hole 1 is opened on the side wall of the valve body located upstream of the gate plate, and a clearing pipe is provided on the valve body, one end of the clearing pipe is connected to the pressure relief hole 1, and the other end of the clearing pipe is connected to the inner cavity of the valve body located downstream of the gate plate; a sealing plug slides in the pressure relief hole 1, and a third driving component for driving the sealing plug to move is provided in the valve body.

[0013] By adopting the above technical solution, when the gate is opened and closed quickly, the fluid velocity in the pipeline will change suddenly, thereby generating a pressure wave and a "water hammer" effect, resulting in an increase in local pressure, thereby increasing the impact of the fluid on the gate; therefore, before the gate is opened and closed, and when it is in a stationary state, the sealing plug is inserted into the pressure relief hole 1, and the pressure relief hole is sealed; when the gate is opened and closed, the gate can trigger the third drive component, and the third drive component can drive the sealing plug to move, thereby opening the pressure relief hole 1. At this time, part of the fluid upstream of the gate can flow to the downstream of the gate through the dredging pipe, indirectly increasing the flow area of ​​the fluid and balancing the pressure upstream and downstream of the gate; providing a pressure-reducing channel for the fluid, reducing the "water hammer" effect, and thereby reducing the impact of the fluid on the valve components; when the gate is opened and closed, the third drive component can drive the sealing plug to be re-inserted into the pressure relief hole 1 to seal the pressure relief hole 1.

[0014] Preferably, the third driving assembly comprises a rack and two gears, and the rack is fixedly arranged on the gate plate; The two gears 1 respectively rotate the inner walls at the upper and lower ends of the sealing opening in the valve body; the two gears 1 are meshed with the racks; A rotating plate is rotatably arranged in the valve body, a driving block is fixedly arranged on the side wall of the rotating plate, a push rod is fixedly arranged on the side wall of the sealing plug, and the driving block abuts against the push rod; a roller 1 is fixedly arranged at the central axis of the rotating plate, and roller 2 is fixedly arranged on each of the two gears 1, a belt is arranged between roller 1 and roller 2, and the belt is transmitted through roller 1 and roller 2.

[0015] By adopting the above technical solution, before the gate plate descends to close or rises to open, the driving block on the rotating plate abuts against the push rod, the sealing plug is inserted into the pressure relief hole 1, and the pressure relief hole 1 is in a sealed state; when the gate plate descends to close or rises to open, the gate plate drives the driving rod and the two racks to move together; When the gate plate descends, the rack first pushes the gear 1 located at the top of the sealing port in the valve body to rotate, and the gear 1 drives the roller 2 to rotate, and the roller 2 drives the roller 1 to rotate through the belt, and the roller 1 drives the rotating plate to rotate, and the rotating plate drives the driving block to rotate downward. At this time, the sealing plug can move downward under the action of its own gravity and the gravity of the fluid in the valve body, thereby opening the pressure relief hole 1, and the fluid can flow out from the pressure relief hole 1; When the gate plate gradually moves to the bottom of the sealing port in the valve body, the rack can gradually drive the gear 1 located at the bottom of the sealing port in the valve body to rotate. At this time, the gear 1 can continue to drive the rotating plate to rotate, and the rotating plate drives the driving block to move upward. The driving block can push the push rod and the sealing plug to move upward until the sealing plug is inserted into the pressure relief hole 1 again to seal the pressure relief hole 1; based on the same principle, when the gate plate rises and opens, the sealing plug can be driven to descend and open. When the gate plate gradually moves to the top of the sealing port in the valve body, the sealing plug can be gradually driven to rise and close. During the whole process, the pressure relief hole 1 is opened while the gate plate rises and opens and descends to close, thereby reducing the difficulty of moving the sealing plug.

[0016] Preferably, a buffer plate and a buffer spring are provided at the bottom end of the sealing opening of the valve body, the buffer plate slides in the valve body, the scraper abuts against the buffer plate, and the two ends of the buffer spring are respectively fixed on the buffer plate and the inner wall of the valve body.

[0017] By adopting the above technical solution, when the gate moves downward to close, the scraper first contacts the buffer plate, and then the gate continues to move downward. The buffer plate can compress the buffer spring and move downward. The elastic force of the set buffer spring can push the buffer plate to buffer the scraper and the gate, which can absorb part of the kinetic energy, reduce the impact force when the gate contacts the bottom, protect the gate and the gate groove from damage, and extend the service life of the gate and related mechanical parts; at the same time, it also reduces the noise generated when the gate is closed, and improves the comfort of the working environment.

[0018] Preferably, a baffle plate 1 slides in the dredging pipe, a connecting rod 1 slides in the valve body, and two ends of the connecting rod 1 are respectively fixed to the buffer plate and the baffle plate 1.

[0019] By adopting the above technical solution, the dredging pipe is in an open state before the gate is lowered and closed. When the gate is lowered and closed, the scraper pushes the buffer plate to move downward, and the buffer plate can simultaneously drive the connecting rod 1 and the baffle 1 to move downward, and the baffle 1 is gradually inserted into the inner cavity of the dredging pipe. When the gate stops moving and closes the valve body, the baffle 1 is completely inserted into the dredging pipe, so that the dredging pipe can be sealed, thereby improving the sealing of the dredging pipe, and then improving the sealing of the overall valve.

[0020] Preferably, a filtering mechanism is provided at the inlet of the valve body, and the filtering mechanism includes a filter box, through holes are opened on opposite sides of the filter box, a hose is provided in the filter box, both ends of the hose are respectively connected to the two through holes, and the two through holes are respectively connected to the inlet end of the valve body and the pipeline; a filter plate is installed at the through holes on one side of the filter box close to the valve body, a cleaning plate is rotatably provided in the filter box, the cleaning plate slides on the surface of the filter plate, and a fourth driving component for driving the cleaning plate to rotate is provided in the filter box.

[0021] By adopting the above technical solution, the provided filtering mechanism can filter the solid particle impurities in the fluid, thereby reducing the wear caused by the solid particle impurities on the sealing plate, gate plate or other components in the valve body; when there are too many solid particle impurities in the pipeline and the filter plate is blocked, the fluid pressure in the pipeline increases, and the volume of the hose expands. At this time, the fourth drive component can be triggered to drive the cleaning plate to rotate, and the cleaning plate can clean the impurities on the surface of the filter plate, reducing the possibility of the sealing plate being blocked.

[0022] Preferably, the fourth driving assembly includes a ring gear, a gear three and a spring four, the ring gear and the gear three are both rotatably arranged on the inner wall of the filter box, the filter plate is located in the central through hole of the ring gear, and one end of the cleaning plate is fixedly arranged on the inner wall of the ring gear, and the ring gear is meshed with the gear three; A driving plate is slidably disposed in the filter box, the driving plate abuts against the outer side wall of the hose, a driving rod is horizontally slidably disposed in the filter box, a top block is fixedly disposed on the driving plate, an inclined surface is disposed on the top block, the top block is slidably engaged with the driving plate through the inclined surface, a threaded rod is fixedly disposed on the driving plate, and the threaded rod is threadably engaged with the gear three; The two ends of the spring four are respectively fixedly arranged on the inner wall of the filter box and the driving rod.

[0023] By adopting the above technical solution, the expansion of the hose volume can push the driving plate to move, and the driving plate drives the top block to move, and the top block can contact the driving rod, and the top block gradually pushes the driving rod to move through the inclined surface, and the driving rod drives the threaded rod to move, and the threaded rod drives gear three to rotate, and gear three drives the ring gear to rotate; when the pressure in the pipeline decreases, the hose contracts, and the elastic force of spring four can push the driving rod and the threaded rod to move to the initial position, and the ring gear rotates in the opposite direction. Therefore, the driving rod drives the threaded rod to move back and forth, thereby driving the ring gear to rotate back and forth, driving the cleaning plate to rotate back and forth, thereby reducing the difficulty of rotating the cleaning plate.

[0024] Preferably, a pressure relief hole No. 2 is opened on the inner wall of one side of the filter box located upstream of the filter plate, the pressure relief hole No. 2 is connected to a pressure relief pipe, a baffle No. 2 is slidably arranged at the pressure relief hole No. 2, a connecting rod No. 2 is fixedly arranged on the driving rod, and one end of the connecting rod No. 2 is fixedly arranged on the baffle No. 2.

[0025] By adopting the above technical scheme, when the fluid in the pipeline flows normally, the second baffle is inserted into the pressure relief pipe and the pressure relief pipe is blocked; when the pressure of the pipeline continues to increase due to the blockage of the filter plate or other reasons, the hose continues to expand and pushes the drive plate to move. When the hose gradually expands to the limit position, the drive plate can gradually pull the connecting rod 2 to move; the connecting rod 2 pulls the second baffle to move, and the pressure relief pipe channel gradually opens, and part of the fluid in the pipeline can flow out from the second pressure relief hole, thereby reducing the fluid pressure in the pipeline, and further reducing the damage to the pipeline or components on the pipeline caused by excessive water pressure; when the fluid pressure in the pipeline decreases, the hose contracts, and the elastic force of the fourth spring can push the drive rod to move to the initial position, and the drive rod drives the second baffle to move to the initial position, thereby sealing the pressure relief pipe again.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: The staff drives the gate plate to move downward. Before closing the gate plate, the sealing plate is located in the inner wall of the sealing port of the valve body, the spring 1 is in a compressed state, and the limit block is inserted in the limit groove on the sealing plate; when the gate plate moves downward to close the valve, the gate plate does not contact the sealing plate during movement, and then when the gate plate moves downward to the bottom end of the sealing port in the valve body, the gate plate can trigger the first drive assembly, and the first drive assembly can drive the limit block to move to a position away from the sealing plate. When the sealing groove on the gate plate corresponds to the sealing plate, the elastic force of the spring 1 can push the sealing plate to be inserted into the sealing groove, thereby closing and sealing the entire valve. At the same time, the limit block can be moved to the initial position under the action of the reset component; when the gate needs to be raised and opened, the sealing plate can be first pushed to move outward of the gate by the second driving component until the sealing plate moves to the inner wall of the valve body sealing port. During this period, the sealing plate contacts the limit block and pushes the limit block to move through the inclined surface on the limit block. When the sealing plate moves to the position corresponding to the limit groove and the limit block, the limit block can be inserted into the limit groove on the sealing plate under the action of the reset component, thereby limiting the sealing plate again, thereby facilitating the gate to rise and open; the friction between the gate and the sealing plate is reduced during the rising and opening process, thereby The sealing performance of the valve as a whole is improved; the scraper provided can firstly scrape off the impurities on the surface of the sealing plate during the rising and falling process, thereby improving the sealing performance between the sealing plate and the gate plate; at the same time, when the gate plate descends to the bottom end of the sealing port in the valve body, the scraper can contact the push block 1 and push the push block 1 to move downward, and the push block 1 can drive the limit block to move to a position away from the sealing plate, thereby reducing the difficulty of moving the limit block; when the limit block moves to a position away from the sealing plate, the scraper continues to push the push block 1 to move downward, the spring 2 is always compressed, the abutment block on the push block 1 can contact the push block 2, and the push block 2 can be moved by The inclined surface pushes the abutment block and the push block 1 to move away from the scraper, and the spring 3 is compressed. When the push block 1 moves to a position away from the scraper, the push block 1 is located above the scraper. The spring 3 can push the push block 1 to a position directly above the scraper. At the same time, the elastic force of the spring 2 can push the limit block to move upward to the initial position. Subsequently, when the gate rises and opens, the scraper rises and can push the push block 1 to move through the inclined surface on the push block 1. The spring 3 is compressed. When the scraper rises and moves to a position away from the push block 1, the elastic force of the spring 3 can push the push block 1 to the initial position, thereby reducing the difficulty of moving the gate and the scraper upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a schematic diagram of the structure of the gate plate in the embodiment of the present application; Figure 3 yes Figure 2 The enlarged view of point A in the middle; Figure 4is a structural schematic diagram highlighting the sealing plate in an embodiment of the present application; Figure 5 is a schematic diagram of the structure of the transfer plate highlighted in the embodiment of the present application; Figure 6 is a schematic diagram of the structure of the hose highlighted in the embodiment of the present application; Figure 7 It is a structural schematic diagram highlighting the filter plate in the embodiment of the present application.

[0028] Description of reference numerals: 1. Valve body; 2. Sealing plate; 3. Gate plate; 4. Limit block; 5. Guide rod 1; 7. Sealing groove; 8. Spring 1; 9. First drive assembly; 91. Scraper; 92. Push block 1; 93. Guide rod 2; 10. Reset assembly; 101. Spring 2; 102. Spring 3; 103. Abutment block; 104. Push block 2; 11. Second drive assembly; 111. Push plate; 112. Cylinder; 113. Connecting rod; 12. Pressure relief hole 1; 13. Dredge pipe; 14. Sealing plug; 15. Guide rod 3; 16. Third drive assembly; 17. Belt; 18. Gear 1; 19. Rack; 20. Turn plate; 21. Drive block; 22. Push rod; 23 , roller one; 24, roller two; 25, buffer plate; 26, buffer spring; 27, baffle one; 28, connecting rod one; 29, filtering mechanism; 291, filter box; 292, through hole; 293, hose; 294, filter plate; 295, cleaning plate; 296, fourth drive assembly; 2961, ring gear; 2962, gear three; 2963, drive plate; 2964, telescopic rod; 2965, reset spring; 2966, drive rod; 2967, guide rod four; 2968, top block; 2969, threaded rod; 2970, spring four; 30, pressure relief hole two; 31, pressure relief pipe; 32, baffle two; 33, connecting rod two. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-7 This application is described in further detail.

[0030] The present application embodiment discloses an electric water valve, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a valve body 1, a sealing plate 2 and a gate plate 3. The sealing plate 2 slides horizontally on the inner wall at the sealing port of the valve body 1. The inner wall of the valve body 1 below the sealing plate 2 slides vertically with a limiting block 4. The inner wall of the valve body 1 below the sealing plate 2 is vertically provided with two guide rods 5, and the bottom end of the guide rod 5 is fixedly provided on the inner wall of the valve body 1.

[0031] like Figure 1 , Figure 2 and Figure 3As shown, the limit block 4 slides vertically on the guide rod 5, a limit groove for the limit block 4 to be inserted is provided at the bottom of the sealing plate 2, and an inclined surface is provided on the side of the top of the limit block 4 close to the gate plate 3, and the limit block 4 slides and cooperates with the sealing plate 2 through the inclined surface; a sealing groove 7 for the sealing plate 2 to be inserted is provided on the side wall of the gate plate 3, and the sealing groove 7 extends in the horizontal direction; a plurality of springs 8 are provided in the inner wall of the sealing port of the valve body 1, and the spring 8 is horizontally arranged, and the two ends of the spring 8 are respectively fixed to the sealing plate 2 and the inner wall of the valve body 1; a first driving component 9 for driving the limit block 4 to move and a reset component 10 for resetting the limit block 4 are provided in the valve body 1.

[0032] like Figure 2 and Figure 4 As shown, the gate plate 3 is provided with a second driving component 11 for driving the sealing plate 2 to move, and the second driving component 11 includes a push plate 111, a cylinder 112 and a connecting rod 113. The push plate 111 slides horizontally in the sealing groove 7, and the push plate 111 abuts against the sealing plate 2. The cylinder 112 is arranged on the top of the gate plate 3, and the two ends of the connecting rod 113 are respectively fixed to the piston rod on the cylinder 112 and the push plate 111.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the staff drives the gate plate 3 to move downward, and before closing the gate plate 3, the sealing plate 2 is located in the inner wall of the sealing port of the valve body 1, the spring 18 is in a compressed state, and the limit block 4 is inserted in the limit groove on the sealing plate 2; when the gate plate 3 moves downward to close the valve, the gate plate 3 does not contact the sealing plate 2 during movement, and then when the gate plate 3 moves downward to the bottom end of the sealing port in the valve body 1, the gate plate 3 can trigger the first drive component 9, and the first drive component 9 can drive the limit block 4 to move to a position away from the sealing plate 2. When the sealing groove 7 on the gate plate 3 corresponds to the sealing plate 2, the elastic force of the spring 18 can push the sealing plate 2 to be inserted in the sealing groove 7, so that the entire valve can be closed and sealed, and the limit block 4 can move to the initial position under the action of the reset component 10.

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, when the gate plate 3 needs to be raised and opened, the cylinder 112 can be opened, and the cylinder 112 can push the connecting rod 113 and the push plate 111 to move toward the outside of the gate plate 3, and the push plate 111 can push the sealing plate 2 to move out of the outside of the gate plate 3 until the sealing plate 2 moves to the inner wall of the sealing port of the valve body 1. During this period, the sealing plate 2 contacts the limit block 4 and pushes the limit block 4 to move through the inclined surface on the limit block 4. When the sealing plate 2 moves to the position corresponding to the limit groove and the limit block 4, the limit block 4 can be inserted into the limit groove on the sealing plate 2 under the action of the reset component 10, thereby limiting the sealing plate 2 again, and then facilitating the gate plate 3 to rise and open; the gate plate 3 reduces the friction with the sealing plate 2 during the rising and opening process, thereby improving the overall sealing performance of the valve.

[0035] like Figure 2 and Figure 3 As shown, the first driving assembly 9 includes a scraper 91 and a push block 92. The scraper 91 is fixedly arranged at the bottom end of the side wall of the gate plate 3. The push block 92 slides horizontally on the side of the limit block 4 close to the gate plate 3. Two guide rods 93 are arranged on the side of the limit block 4 close to the gate plate 3. The two guide rods 93 are respectively arranged horizontally on the opposite sides of the push block. One end of the guide rod 93 is fixedly arranged on the limit block 4. The push block slides horizontally on the guide rod 93. The scraper 91 abuts against the top of the push block 92; the scraper 91 is vertically slidably connected to the surface of the sealing plate 2.

[0036] like Figure 2 and Figure 3 As shown, the scraper 91 is firstly used to scrape off the impurities on the surface of the sealing plate 2 during the rising and falling process, thereby improving the sealing between the sealing plate 2 and the gate plate 3; at the same time, when the gate plate 3 descends to the bottom end of the sealing port in the valve body 1, the scraper 91 can contact the push block 92 and push the push block 92 to move downward, and the push block 92 can drive the limit block 4 to move to a position away from the sealing plate 2, thereby reducing the difficulty of moving the limit block 4.

[0037] like Figure 2 and Figure 3As shown, the reset assembly 10 includes a spring 2 101 and a spring 3 102. Two springs 2 101 are provided and are both vertically arranged. The two springs 2 101 are respectively sleeved on the two guide rods 1 5, and the two ends of the spring 2 101 are respectively fixedly arranged on the limit block 4 and the inner wall of the valve body 1; two springs 3 102 are provided and are both horizontally arranged. The two springs 3 102 are respectively sleeved on the two guide rods 2 93, and the two ends of the spring 3 102 are respectively fixedly arranged on the limit block 4 and the push block 1 92; an abutment block 103 is fixedly arranged at the bottom of the push block 1 92, and a push block 2 104 is fixedly arranged on the inner wall of the sealing port of the valve body 1 below the abutment block 103, and a slope is provided on the top of the push block 2 104, and the push block 2 104 is slidably matched with the abutment block 103 through the slope; an inclined surface is provided at one end of the push block 1 92 close to the scraper 91, and the push block 1 92 is slidably matched with the scraper 91 through the inclined surface.

[0038] like Figure 2 and Figure 3 As shown, when the limit block 4 moves to a position away from the sealing plate 2, the scraper 91 continues to push the push block 1 92 to move downward, the spring 2 101 is always compressed, the abutment block 103 on the push block 1 92 can contact the push block 2 104, the push block 2 104 can push the abutment block 103 and the push block 1 92 to move away from the scraper 91 through the inclined surface, the spring 3 102 is compressed, and when the push block 1 92 moves to a position away from the scraper 91, the push block 1 92 is located above the scraper 91, and the spring 3 101 is compressed. 2 can push the push block 1 92 to move to the position just above the scraper 91, and at the same time, the elastic force of the spring 2 101 can push the limit block 4 to move upward to the initial position. Then, when the gate 3 rises and opens, the scraper 91 rises and can push the push block 1 92 to move through the inclined surface on the push block 1 92, and the spring 3 102 is compressed. When the scraper 91 rises and moves to a position away from the push block 1 92, the elastic force of the spring 3 102 can push the push block 1 92 to move to the initial position, thereby reducing the difficulty of the gate 3 and the scraper 91 moving upward.

[0039] like Figure 2 , Figure 3 and Figure 5 As shown, a pressure relief hole 12 is opened on the bottom side wall of the valve body 1 located at the upstream part of the gate plate 3, and a dredging pipe 13 is arranged at the bottom of the valve body 1. One end of the dredging pipe 13 is connected to the pressure relief hole 12, and the other end of the dredging pipe 13 is connected to the inner cavity of the valve body 1 located at the downstream part of the gate plate 3; a sealing plug 14 is vertically slid in the pressure relief hole 12, and a plurality of guide rods 15 are vertically fixed on the inner wall of the dredging pipe 13, and the sealing plug 14 vertically slides on the guide rods 15; a third driving component 16 for driving the sealing plug 14 to move is arranged in the valve body 1.

[0040] like Figure 2 , Figure 3 and Figure 5As shown, when the gate 3 is opened and closed quickly, the fluid velocity in the pipeline will change suddenly, thereby generating a pressure wave, a "water hammer" effect, and causing a local pressure increase, thereby increasing the impact of the fluid on the gate 3; therefore, before the gate 3 is opened and closed, and in a stationary state, the sealing plug 14 is inserted into the pressure relief hole 12, and the pressure relief hole 12 is sealed; when the gate 3 is opened and closed, the gate 3 can trigger the third drive component 16, and the third drive component 16 can drive the sealing plug 14 to move, thereby opening the pressure relief hole 12. At this time, part of the fluid upstream of the gate 3 can flow to the downstream of the gate 3 through the dredging pipe 13, indirectly increasing the flow area of ​​the fluid and balancing the pressure upstream and downstream of the gate 3; providing a pressure-reducing channel for the fluid, reducing the "water hammer" effect, and thereby reducing the impact of the fluid on the valve components; after the gate 3 is opened and closed, the third drive component 16 can drive the sealing plug 14 to be re-inserted into the pressure relief hole 12 to seal the pressure relief hole 12.

[0041] like Figure 2 and Figure 3 As shown, the third driving assembly 16 includes a rack 19 and two gears 18 . The rack 19 is vertically arranged and fixedly disposed on the side wall of the gate plate 3 .

[0042] like Figure 2 and Figure 3 As shown, two gears 18 are respectively rotated on the upper and lower inner walls of the sealing opening of the valve body 1; the two gears 18 are respectively meshed with the racks 19.

[0043] like Figure 2 , Figure 3 and Figure 5 As shown, a rotating plate 20 is rotatably arranged in the dredging pipe 13 in the valve body 1, and the central axis of the rotating plate 20 is parallel to the horizontal direction. A driving block 21 is fixedly arranged on the side of the rotating plate 20 close to the sealing plug 14, and a push rod 22 is fixedly arranged on the side wall of the sealing plug 14, and the driving block 21 abuts against the bottom of the push rod 22; a roller 1 23 is fixedly arranged at the central axis of the rotating plate 20, and the roller 1 23 is coaxial with the rotating plate 20, and rollers 24 are fixedly arranged on the two gears 18, and a belt 17 is arranged between the rollers 1 23 and the rollers 24, and the belt 17 is transmitted through the rollers 1 23 and the rollers 24.

[0044] like Figure 2 , Figure 3 and Figure 5As shown, before the gate plate 3 descends to close or rises to open, the driving block 21 on the rotating plate 20 abuts against the push rod 22, the sealing plug 14 is inserted into the pressure relief hole 12, and the pressure relief hole 12 is in a sealed state; when the gate plate 3 descends to close or rises to open, the gate plate 3 will drive the rack 19 to move. When the gate plate 3 descends, the rack 19 first pushes the gear 18 located at the top of the sealing port in the valve body 1 to rotate, and the gear 18 drives the roller 24 to rotate. The roller 24 drives the roller 23 to rotate through the belt 17, and the roller 23 drives the rotating plate 20 to rotate. The rotating plate 20 drives the driving block 21 to rotate downward. At this time, the sealing plug 14 can move downward under the action of its own gravity and the gravity of the fluid in the valve body 1, thereby opening the pressure relief hole 12, and the fluid can flow out of the pressure relief hole 12.

[0045] like Figure 2 , Figure 3 and Figure 5 As shown, when the gate plate 3 gradually moves to the bottom of the sealing port in the valve body 1, the rack 19 can gradually drive the gear 18 located at the bottom of the sealing port in the valve body 1 to rotate, and the gear 18 can continue to drive the rotating plate 20 to rotate, and the rotating plate 20 drives the driving block 21 to move upward, and the driving block 21 can push the push rod 22 and the sealing plug 14 to move upward until the sealing plug 14 is inserted into the pressure relief hole 12 again to seal the pressure relief hole 12; based on the same principle, when the gate plate 3 rises to open, the sealing plug 14 can be driven to descend to open, and when the gate plate 3 gradually moves to the top of the sealing port in the valve body 1, the sealing plug 14 can be gradually driven to rise and close. During the whole process, the pressure relief hole 12 is opened while the gate plate 3 rises to open and descends to close, thereby reducing the difficulty of moving the sealing plug 14.

[0046] like Figure 2 and Figure 3 As shown, a buffer plate 25 and a buffer spring 26 are provided at the bottom end of the sealing opening in the valve body 1. The buffer plate 25 slides vertically in the valve body 1, and the scraper 91 abuts against the buffer plate 25. The buffer spring 26 is vertically arranged, and the two ends of the buffer spring 26 are respectively fixed on the buffer plate 25 and the inner wall of the valve body 1.

[0047] like Figure 2 and Figure 3 As shown, when the gate 3 moves downward to close, the scraper 91 first contacts the buffer plate 25, and then the gate 3 continues to move downward. The buffer plate 25 can compress the buffer spring 26 to move downward. The elastic force of the buffer spring 26 can push the buffer plate 25 to buffer the scraper 91 and the gate 3, which can absorb part of the kinetic energy, reduce the impact force when the gate 3 contacts the bottom, protect the gate 3 from damage, and extend the service life of the gate 3 and related mechanical parts; at the same time, it also reduces the noise generated when the gate 3 is closed, thereby improving the comfort of the working environment.

[0048] like Figure 2 and Figure 3 As shown, a baffle plate 27 is vertically slidable in the dredging pipe 13, and a connecting rod 28 is vertically slidable in the valve body 1. The two ends of the connecting rod 28 are respectively fixed to the bottom of the buffer plate 25 and the baffle plate 27.

[0049] like Figure 2 and Figure 3 As shown, before the gate plate 3 is lowered and closed, the dredging pipe 13 is in an open state. When the gate plate 3 is lowered and closed, the scraper 91 pushes the buffer plate 25 to move downward, and the buffer plate 25 can simultaneously drive the connecting rod 28 and the baffle plate 27 to move downward, and the baffle plate 27 is gradually inserted into the inner cavity of the dredging pipe 13. When the gate plate 3 stops moving to close the valve body 1, the baffle plate 27 is completely inserted into the dredging pipe 13, so that the dredging pipe 13 can be sealed, thereby improving the sealing performance of the dredging pipe 13, and then improving the sealing performance of the overall valve.

[0050] like Figure 1 , Figure 6 and Figure 7 As shown, a filter mechanism 29 is provided at the inlet of the valve body 1, and the filter mechanism 29 includes a filter box 291, and through holes 292 are opened on opposite sides of the filter box 291. A hose 293 is provided in the filter box 291, and the two ends of the hose 293 are respectively connected to the two through holes 292, and the two through holes 292 are respectively connected to the inlet end of the valve body 1 and the pipeline; a filter plate 294 is installed at the through hole 292 on the side of the filter box 291 close to the valve body 1, and a cleaning plate 295 is rotatably provided in the filter box 291, and the cleaning plate 295 slides on the surface of the filter plate 294, and a fourth driving component 296 for driving the cleaning plate 295 to rotate is provided in the filter box 291.

[0051] like Figure 1 , Figure 6 and Figure 7 As shown, the filter mechanism 29 is configured to filter the solid particle impurities in the fluid, thereby reducing the wear of the solid particle impurities on the sealing plate 2 and the gate plate 3 or other components in the valve body 1; when there are too many solid particle impurities in the pipeline and the filter plate 294 is blocked, the fluid pressure in the pipeline increases, and the volume of the hose 293 expands. At this time, the fourth drive component 296 can be triggered to drive the cleaning plate 295 to rotate. The cleaning plate 295 can clean the impurities on the surface of the filter plate 294, reducing the possibility of the sealing plate 2 being blocked.

[0052] like Figure 1 , Figure 6 and Figure 7As shown, the fourth driving assembly 296 includes a ring gear 2961 and a gear three 2962. The ring gear 2961 and the gear three 2962 are both rotatably disposed on the inner wall of the filter box 291. The filter plate 294 is located in the central through hole of the ring gear 2961, and one end of the cleaning plate 295 is fixedly disposed on the inner wall of the ring gear 2961. The ring gear 2961 is meshed with the gear three 2962.

[0053] like Figure 1 , Figure 6 and Figure 7 As shown, there are two driving plates 2963 vertically arranged and sliding in the filter box 291, and a plurality of telescopic rods 2964 are arranged between the driving plate 2963 and the inner wall of the filter box 291, and the two ends of the telescopic rods 2964 are respectively fixedly arranged on the driving plate 2963 and the inner wall of the filter box 291; a return spring 2965 is sleeved on the telescopic rod 2964, and the two ends of the return spring 2965 are respectively fixedly arranged on the driving plate 2963 and the inner wall of the filter box 291; the driving plate 2963 is in the shape of an arc plate, and the driving plate 2963 abuts against the outer wall of the hose 293, and there are driving rods 2966 in the filter box 291 that slide horizontally along the flow direction of the fluid. A guide rod four 2967 is horizontally arranged on the filter box 291, and the end of the guide rod four 2967 is fixedly arranged on the inner wall of the filter box 291, and the guide rod four 2967 is penetrated and slid on the driving rod 2966, and the driving rod 2966 is in a ring shape; a top block 2968 is fixedly arranged on the driving plate 2963, and a slope is provided on the side of the top block 2968 close to the driving rod 2966, and the top block 2968 is slidably matched with the driving plate 2963 through the slope, and a threaded rod 2969 is fixedly arranged on the driving plate 2963, and the threaded rod 2969 is horizontally arranged, and the threaded rod 2969 is penetrated by the gear three 2962 and threadedly matched with the gear three 2962.

[0054] like Figure 1 , Figure 6 and Figure 7 As shown, springs 2970 are sleeved on opposite ends of the guide rod 2967 at the driving rod 2966, and the two ends of the spring 2970 are fixedly disposed on the inner wall of the filter box 291 and the driving rod 2966, respectively.

[0055] like Figure 1 , Figure 6 and Figure 7As shown, the volume expansion of the hose 293 can push the driving plate 2963 to move, and the driving plate 2963 drives the top block 2968 to move, and the top block 2968 can contact the driving rod 2966. The top block 2968 gradually pushes the driving rod 2966 to move through the inclined surface, and the driving rod 2966 drives the threaded rod 2969 to move, and the threaded rod 2969 drives the gear three 2962 to rotate, and the gear three 2962 drives the ring gear 2961 to rotate; when the pressure in the pipeline decreases, the hose 293 contracts, and the elastic force of the spring four 2970 can push the driving rod 2966 and the threaded rod 2969 to move to the initial position, and the ring gear 2961 rotates in the opposite direction. Therefore, the driving rod 2966 drives the threaded rod 2969 to move back and forth, thereby driving the ring gear 2961 to rotate back and forth, driving the cleaning plate 295 to rotate back and forth, thereby reducing the difficulty of rotating the cleaning plate 295.

[0056] like Figure 1 , Figure 6 and Figure 7 As shown, a pressure relief hole 230 is opened on the bottom inner wall of the filter box 291 upstream of the filter plate 294, the pressure relief hole 230 is connected to a pressure relief pipe 31 through a flexible pipe, a baffle 232 is horizontally slidable at the pressure relief hole 230, a connecting rod 233 is fixedly provided on the driving rod 2966, and one end of the connecting rod 233 is fixedly provided on the baffle 232.

[0057] like Figure 1 , Figure 6 and Figure 7 As shown, when the fluid in the pipeline circulates normally, the baffle plate 2 32 is inserted into the pressure relief pipe 31, and the pressure relief pipe 31 is blocked; when the fluid in the pipeline continues to increase due to the blockage of the filter plate 294 or other reasons and the pipeline pressure continues to increase, the hose 293 continues to expand to push the drive plate 2963 to move, and when the hose 293 gradually expands to the limit position, the drive plate 2963 can gradually pull the connecting rod 2 33 to move; the connecting rod 2 33 pulls the baffle plate 2 32 to move, and the channel of the pressure relief pipe 31 is gradually opened, and part of the fluid in the pipeline can flow out from the pressure relief hole 2 30, thereby reducing the fluid pressure in the pipeline, thereby reducing the damage to the pipeline or components on the pipeline caused by excessive water pressure; when the fluid pressure in the pipeline is reduced, the hose 293 contracts, and the elastic force of the spring 4 2970 can push the drive rod 2966 to move to the initial position, and the drive rod 2966 drives the baffle plate 2 32 to move to the initial position, thereby sealing the pressure relief pipe 31 again.

[0058] The implementation principle of the embodiment of the present application is as follows: the staff drives the gate plate 3 to move downward, and before closing the gate plate 3, the sealing plate 2 is located in the inner wall of the sealing port of the valve body 1, the spring 18 is in a compressed state, and the limit block 4 is inserted in the limit groove on the sealing plate 2; when the gate plate 3 moves downward to close the valve, the gate plate 3 does not contact the sealing plate 2 during movement, and then when the gate plate 3 moves downward to the bottom end of the sealing port in the valve body 1, the gate plate 3 can trigger the first drive component 9, and the first drive component 9 can drive the limit block 4 to move to a position away from the sealing plate 2, and when the sealing groove 7 on the gate plate 3 corresponds to the sealing plate 2, the elastic force of the spring 18 can push the sealing plate 2 to be inserted into the sealing groove 7, so that the entire valve can be closed and sealed. When the limit block 4 can be moved to the initial position under the action of the reset component 10; when the gate plate 3 needs to be raised and opened, the sealing plate 2 can be first pushed to move outward from the gate plate 3 through the second drive component 11 until the sealing plate 2 moves to the inner wall of the sealing port of the valve body 1. During this period, the sealing plate 2 contacts the limit block 4 and pushes the limit block 4 to move through the inclined surface on the limit block 4. When the sealing plate 2 moves to the position corresponding to the limit groove and the limit block 4, the limit block 4 can be inserted into the limit groove on the sealing plate 2 under the action of the reset component 10, thereby limiting the sealing plate 2 again, and then facilitating the gate plate 3 to rise and open; the gate plate 3 reduces the friction with the sealing plate 2 during the rising and opening process, thereby improving the overall sealing performance of the valve.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electric water valve, comprising a valve body (1), a sealing plate (2) and a gate plate (3), characterized in that: The sealing plate (2) slides horizontally on the inner wall of the sealing opening in the valve body (1); a sliding limit block (4) is provided in the valve body (1); a limit groove for the limit block (4) to be inserted is provided on the sealing plate (2); an inclined surface is provided at one end of the limit block (4) close to the sealing plate (2); the limit block (4) is slidably matched with the sealing plate (2) through the inclined surface; a sealing groove (7) for the sealing plate (2) to be inserted is provided on the gate plate (3); a plurality of springs (8) are provided in the inner wall of the sealing opening in the valve body (1); the two ends of the springs (8) are respectively fixedly arranged on the sealing plate (2) and the inner wall of the valve body (1); a first driving component (9) for driving the limit block (4) to move and a resetting component (10) for resetting the limit block (4) are provided in the valve body (1); a second driving component (11) for driving the sealing plate (2) to move is provided on the gate plate (3).

2. An electric water valve according to claim 1, characterized in that: The first driving assembly (9) comprises a scraper (91) and a push block (92); the scraper (91) is fixedly arranged on the gate plate (3); the push block (92) slides horizontally on the limit block (4); the scraper (91) abuts against the push block (92); the scraper (91) is slidably connected to the surface of the sealing plate (2).

3. An electric water valve according to claim 2, characterized in that: The reset assembly (10) comprises a second spring (101) and a third spring (102), the two ends of the second spring (101) being fixedly arranged on the limit block (4) and the inner wall of the valve body (1) respectively; the two ends of the third spring (102) being fixedly arranged on the limit block (4) and the push block (92) respectively, the push block (92) being fixedly arranged with a contact block (103), the inner wall of the valve body (1) being fixedly arranged with a second push block (104), the push block (104) being provided with an inclined surface, the push block (104) being slidably matched with the contact block (103) by means of the inclined surface; the push block (92) being provided with an inclined surface at one end close to the scraper (91), the push block (92) being slidably matched with the scraper (91) by means of the inclined surface.

4. The electric water valve according to claim 1, characterized in that: A pressure relief hole (12) is provided on the side wall of the valve body (1) at the upstream portion of the gate plate (3); a dredging pipe (13) is provided on the valve body (1); one end of the dredging pipe (13) is connected to the pressure relief hole (12); the other end of the dredging pipe (13) is connected to the inner cavity of the valve body (1) at the downstream portion of the gate plate (3); a sealing plug (14) is slidably disposed in the pressure relief hole (12); and a third driving component (16) for driving the sealing plug (14) to move is provided in the valve body (1).

5. An electric water valve according to claim 4, characterized in that: The third driving assembly (16) comprises a rack (19) and two gears (18), wherein the rack (19) is fixedly arranged on the gate plate (3); The two gears (18) respectively rotate the upper and lower inner walls of the sealing opening of the valve body (1); the two gears (18) are meshed with the rack (19); A rotating plate (20) is rotatably arranged inside the valve body (1), a driving block (21) is fixedly arranged on the side wall of the rotating plate (20), a push rod (22) is fixedly arranged on the side wall of the sealing plug (14), and the driving block (21) abuts against the push rod (22); a roller 1 (23) is fixedly arranged at the center axis of the rotating plate (20), and roller 2 (24) is fixedly arranged on each of the two gears 1 (18); a belt (17) is arranged between the roller 1 (23) and the roller 2 (24), and the belt (17) is transmitted through the roller 1 (23) and the roller 2 (24).

6. The electric water valve according to claim 1, characterized in that: A buffer plate (25) and a buffer spring (26) are provided at the bottom end of the sealing opening in the valve body (1); the buffer plate (25) slides in the valve body (1); the scraper (91) abuts against the buffer plate (25); and the two ends of the buffer spring (26) are respectively fixed to the buffer plate (25) and the inner wall of the valve body (1).

7. An electric water valve according to claim 6, characterized in that: A baffle plate (27) is slidably disposed in the dredging pipe (13), and a connecting rod (28) is slidably disposed in the valve body (1). The two ends of the connecting rod (28) are respectively fixedly disposed on the buffer plate (25) and the baffle plate (27).

8. The electric water valve according to claim 1, characterized in that: A filter mechanism (29) is provided at the inlet of the valve body (1), the filter mechanism (29) comprising a filter box (291), through holes (292) are provided on opposite sides of the filter box (291), a hose (293) is provided inside the filter box (291), two ends of the hose (293) are respectively connected to the two through holes (292), and the two through holes (292) are respectively connected to the inlet end of the valve body (1) and the pipeline; a filter plate (294) is installed at the through holes (292) on one side of the filter box (291) close to the valve body (1), a cleaning plate (295) is rotatably provided inside the filter box (291), the cleaning plate (295) slides on the surface of the filter plate (294), and a fourth driving component (296) for driving the cleaning plate (295) to rotate is provided inside the filter box (291).

9. An electric water valve according to claim 8, characterized in that: The fourth driving assembly (296) comprises a ring gear (2961), a gear three (2962) and a spring four (2970); the ring gear (2961) and the gear three (2962) are both rotatably arranged on the inner wall of the filter box (291); the filter plate (294) is located in the central through hole of the ring gear (2961); one end of the cleaning plate (295) is fixedly arranged on the inner wall of the ring gear (2961); the ring gear (2961) is meshed with the gear three (2962); A driving plate (2963) is slidably disposed in the filter box (291), the driving plate (2963) being in contact with the outer wall of the hose (293), a driving rod (2966) is horizontally slidably disposed in the filter box (291), a top block (2968) is fixedly disposed on the driving plate (2963), an inclined surface is provided on the top block (2968), the top block (2968) is slidably engaged with the driving plate (2963) via the inclined surface, a threaded rod (2969) is fixedly disposed on the driving plate (2963), the threaded rod (2969) is threadably engaged with the gear three (2962); The two ends of the spring four (2970) are respectively fixed to the inner wall of the filter box (291) and the driving rod (2966).

10. An electric water valve according to claim 9, characterized in that: A second pressure relief hole (30) is provided on an inner wall of one side of the filter box (291) located upstream of the filter plate (294); the second pressure relief hole (30) is connected to a pressure relief pipe (31); a second baffle (32) is slidably disposed at the second pressure relief hole (30); a second connecting rod (33) is fixedly disposed on the driving rod (2966); one end of the second connecting rod (33) is fixedly disposed on the second baffle (32).

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