A gate valve with filtering function

Abstract

The present invention discloses a gate valve with a filtering function, and relates to the technical field of gate valves. The main body assembly includes a main pipe body, and the circumferential outer wall of the main pipe body is fixedly connected with a control assembly for closing and opening the main pipe body, the bottom outer wall of the main pipe body is fixedly connected with a sewage discharge assembly for discharging sewage, and the circumferential inner wall of the main pipe body is fixedly connected with a closing assembly for closing the main pipe body. The present invention provides an energy storage tank, and when a water hammer effect occurs, the water in the main pipe body will push open the floating plate, and the floating plate will squeeze the limit spring. After the water hammer effect disappears, the water in the energy storage tank will be squeezed into the cleaning pipe under the pressure of the elastic component, and the water entering the cleaning pipe will be sprayed to the filter plate through the cleaning nozzle to clean the filter plate, and at the same time, the water hammer effect will be absorbed to a certain extent, thereby improving the protection effect of the main pipe body.

Description

Technical Field

[0001] The invention relates to the technical field of gate valves, in particular to a gate valve with a filtering function. Background Art

[0002] A gate valve is a valve used to control the flow of fluid. Its main function is to open and close the fluid channel. Its working principle is to achieve the flow of fluid or prevent the flow by moving a gate plate up and down. Gate valves are usually used in situations where they need to be fully opened or closed. They are not suitable for regulating flow. When the gate valve is fully opened, the fluid has almost no resistance, the flow is large, and it is suitable for high pressure and high temperature environments. A gate valve with a filtering function is usually called a filter gate valve or a gate valve filter. This device combines the functions of a gate valve and a filter. It can filter the fluid while controlling the flow of the fluid to remove impurities and particles in the system.

[0003] The retractable filter pressure-reducing gate valve with patent publication number CN113719622A is equipped with a filter bin pressure-reducing mechanism and a transmission mechanism. The filter pressure-reducing mechanism can effectively reduce the water flow and filter impurities in the water. The transmission mechanism is used to rotate part of the filter pressure-reducing mechanism, which can effectively prevent impurities from accumulating at a certain position on its surface. By setting a flow monitoring mechanism and a transmission mechanism, power can be transmitted to the transmission mechanism while monitoring the flow, which plays a role in power transmission without the need for external power application. At the same time, in conjunction with the pneumatic unit, the water resistance can be reduced when the water flow is too small.

[0004] During the use of the above-mentioned and similar technical solutions, a water hammer effect will be generated at the moment the valve is closed. At this time, the water pressure will cause a certain impact on the valve body and the filter assembly, and may even cause damage to the valve or the filter assembly. When the water hammer effect occurs, the water pressure may press the impurities attached to the filter assembly into the interior of the filter assembly, and then during long-term use, the filtering effect of the filter assembly may be poor. In addition, when the filter assembly in the valve body is cleaned, some of the impurities that fall after cleaning will flow back into the pipeline, and thus continue to adhere to the filter assembly during the next fluid transportation process, and may continue to flow back in the pipeline, polluting the water inlet end of the pipeline, thereby increasing the filtering pressure of the filter assembly. Summary of the invention

[0005] The object of the present invention is to provide a gate valve with a filtering function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gate valve with a filtering function, comprising a main body component and a control component for opening and closing the main body component, a sewage discharge component for discharging sewage, a filter plate for intercepting impurities, an energy storage component for reducing the pressure of water, and a cleaning component and a water inlet component fixed to the bottom of the energy storage component for spraying water to clean the filter plate and filling the energy storage component with water, characterized in that the main body component comprises a main pipe body, the energy storage component comprises an energy storage tank, the energy storage tank is fixedly connected to the outer wall of the main pipe body, a lifting plate is arranged on the circumferential inner wall of the energy storage tank, a sealing ring is provided between the lifting plate and the energy storage tank in sealing contact, and a sealing ring is provided between the top outer wall of the lifting plate and the energy storage tank. The elastic component, the water inlet component includes a water inlet pipe, the water inlet pipe is fixedly connected between the energy storage tank and the main pipe body, the circumferential inner wall of the water inlet pipe is fixedly connected with a card plate for one-way flow limiting of water, a vertical hole is opened between the top and the bottom outer wall of the card plate, a floating plate for intercepting water is arranged on the top of the card plate, a plurality of vertical rods for limiting the floating plate are fixedly connected to the top of the card plate, a connecting plate is fixedly connected between the top outer walls of the vertical rods, a limiting spring for squeezing the floating plate is fixedly connected between the connecting plate and the floating plate, and the cleaning component includes a cleaning pipe, the cleaning pipe is fixedly connected to the bottom outer wall of the energy storage tank, the outer wall of the cleaning pipe is fixedly connected with a plurality of cleaning nozzles facing the filter plate, and the water entering the cleaning pipe will be sprayed toward the filter plate through the cleaning nozzle to clean the filter plate;

[0007] The control component includes a valve ring, the circumferential inner wall of the valve ring is rotatably connected to a valve disc for blocking and opening the valve ring, and the top of the valve disc is fixedly connected to a rotating rod for controlling the valve disc. The sewage discharge component includes a sewage discharge pipe, which is fixedly connected to the outer wall of the main body, and the impurities after flushing are discharged through the sewage discharge pipe;

[0008] When the water hammer effect occurs, the water in the main body pushes the float plate open, and the float plate squeezes the limit spring. When the water hammer effect disappears, the float plate blocks the water in the energy storage tank from flowing out through the water inlet pipe under the limit of the limit spring. Under the action of water pressure, the lifting plate is lifted up and gradually compresses the elastic component. After the water hammer effect disappears, the elastic component applies pressure to spray the water in the energy storage tank through the cleaning nozzle to impact and clean the filter plate.

[0009] Furthermore, a closing component for closing the main component is arranged inside the main pipe body, and the closing component includes a closing plate, which is located between the filter plate and the water inlet of the main pipe body, and a closing ring for placing the closing plate is fixedly connected to the circumferential inner wall of the main pipe body, and the closing plate is rotatably connected between the inner walls of the closing ring, and a first mounting platform is fixedly connected to the circumferential outer wall of the main pipe body, and a closing motor electrically connected to the closing plate is fixedly connected to the bottom outer wall of the first mounting platform, and the closing motor drives the closing plate to rotate, thereby sealing the main pipe body and improving the sewage discharge capacity of impurities in the main pipe body.

[0010] Furthermore, a pressure plate electrically connected to a closed motor is fixedly connected to the bottom inner wall of the energy storage tank. When the lifting plate rises and does not contact the pressure plate, the closed motor drives the closed plate to close the closed ring. When the lifting plate descends and contacts the pressure plate, the closed motor drives the closed plate to open the closed ring, and the fluid is transported normally.

[0011] Furthermore, the top of the main pipe body is fixedly connected to a second mounting platform supporting the energy storage tank, the energy storage tank is fixedly connected to the top of the second mounting platform, a through hole is opened on the top of the energy storage tank, and a plurality of limit rods for maintaining the stability of the lifting plate are fixedly connected between the top and bottom of the energy storage tank, and the lifting plate is sealingly sleeved on the outer wall of the limit rods.

[0012] Furthermore, a sewage valve for opening and closing the sewage pipe is fixedly connected to the inner wall of the sewage pipe, and a control valve for controlling the sewage valve is fixedly connected to the outer wall of the sewage pipe.

[0013] Furthermore, the bottom inner wall of the water inlet pipe is fixedly connected with a screening assembly for preliminary interception of water, and the outer wall of the cleaning pipe is fixedly connected with a cleaning branch pipe for flushing the screening assembly. Part of the water entering the cleaning pipe enters the cleaning branch pipe to flush the screening assembly.

[0014] Furthermore, the screening component includes a screening plate with screening holes. After small particle impurities in the fluid pass through the screening plate and enter the energy storage tank, they are sprayed out through a cleaning nozzle to clean the filter plate.

[0015] Furthermore, the elastic component is a spring.

[0016] Furthermore, the outer walls at both ends of the main pipe body are fixedly connected with a first mounting plate, and one end of the first mounting plate is fixedly connected with a mounting ring. When the mounting ring is installed and docked with the main pipe body, the mounting ring plays a sealing role.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The gate valve with filtering function, through the energy storage tank provided, when water hammer effect occurs, the water in the main pipe body will push the floating plate open and make the floating plate squeeze the limit spring. After the water hammer effect disappears, the water in the energy storage tank will be squeezed into the cleaning pipe under the pressure of the elastic component. The water entering the cleaning pipe will be sprayed to the filter plate through the cleaning nozzle to clean the filter plate and absorb the water hammer effect to a certain extent at the same time, thereby improving the protection effect of the main pipe body. Before the water in the main pipe enters the energy storage tank, the screening component will preliminarily screen the water to intercept larger impurities and only allow small particles of impurities to enter the energy storage tank. When the water in the energy storage tank is sprayed out through the cleaning nozzle, the water flow is accompanied by small particles of impurities, thereby providing a stronger cleaning effect on the filter plate.

[0019] At the same time, through the set pressure plate, when the water hammer effect occurs, when the lifting plate rises and does not contact the pressure plate, the closing motor drives the closing plate to close the closing loop; when the lifting plate descends and contacts the pressure plate, the closing motor drives the closing plate to open the closing loop; after the closing plate closes the closing loop, impurities will accumulate between the filter plate and the closing plate and be discharged through the drain pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention;

[0021] Figure 2 For the present invention Figure 1 A is an enlarged structural diagram;

[0022] Figure 3 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the main body of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the closure assembly of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the energy storage component of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the cleaning component of the present invention;

[0027] Figure 8 It is a schematic diagram of the lifting structure of the lifting plate of the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of the water inlet assembly of the present invention.

[0029] In the figure: 1. Main assembly; 101. Main body; 102. First mounting plate; 103. Receiving platform; 104. Top plate; 105. Mounting ring; 106. Filter plate; 2. Drain assembly; 201. Drain pipe; 202. Control valve; 3. Closing assembly; 301. Closing motor; 302. Closing ring; 303. Closing plate; 304. First mounting platform; 4. Cleaning assembly; 401. Cleaning pipe; 402. Cleaning nozzle; 403. Cleaning branch pipe; 5. Water inlet assembly ; 501, water inlet pipe; 502, screening assembly; 503, card plate; 504, floating plate; 505, vertical rod; 506, connecting plate; 507, limit spring; 6, energy storage assembly; 601, energy storage tank; 602, limit rod; 603, elastic assembly; 604, lifting plate; 605, sealing ring; 606, through hole; 607, second mounting platform; 7, control assembly; 701, bottom plate; 702, rotating rod; 703, rotating disk; 704, valve ring; 705, valve disc. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] During the use of a gate valve with a filtering function, impurities in the fluid will be intercepted in the filtering component, and as time goes by, the impurities will gradually accumulate. When the gate valve is closed, the water hammer effect generated will impact the filtering component, causing a certain impact on the gate valve and the filtering component. At this time, the impurities accumulated on the filtering component may be impacted and fall, causing the impurities to flow back into the pipeline, and frequent water hammer impacts will cause irreversible damage to the gate valve and the pipeline. During the use of the technical solution provided by the present application, an energy storage component is provided, and the energy storage component includes an energy storage tank. At the moment the valve is closed, when the water hammer effect occurs, part of the water pressure is unidirectionally directed to the energy storage tank. A lifting plate is provided in the energy storage tank, and the top of the lifting plate is connected to an elastic component. At this time, when water enters the energy storage tank, it will drive the lifting plate to rise and compress the elastic component. Since the water hammer effect has a higher pressure, the lifting plate will be lifted up by the water pressure and continuously Compress the elastic component. When the water hammer effect disappears, the lifting plate will be squeezed downward under the action of the elastic component. At this time, a cleaning nozzle is set to spray the water in the energy storage tank to the filter plate through the cleaning nozzle, thereby achieving an automatic cleaning effect on the filter plate. Since the water entering the energy storage tank will be mixed with a certain amount of unfiltered particulate impurities, it can form a stronger cleaning effect on the surface of the filter component, and when the water hammer effect occurs, it can also absorb part of the water hammer pressure, thereby protecting the valve body and the filter plate. A closing component is set at the front section of the filter plate, and a pressure plate is set at the bottom of the energy storage tank. As the lifting plate rises and the pressure plate is not triggered, the closing component is closed, and the filter component is flushed at this time. The flushed products will all stay inside the filter component and the closing component, and flow out through the sewage discharge component. After that, the lifting plate will drop to the lowest end, and the closing component will be opened by triggering the pressure plate, so as to facilitate the next energy storage cleaning of the filter component.

[0032] like Figure 1 , Figure 3-Figure 4 , Figure 7-Figure 9As shown, the present invention provides a technical solution: a gate valve with a filtering function, comprising a main body component 1 and a control component 7 for opening and closing the main body component 1, a sewage discharge component 2 for discharging sewage, a filter plate 106 for intercepting impurities, an energy storage component 6 for reducing the pressure of water, and a cleaning component 4 and a water inlet component 5 fixed to the bottom of the energy storage component 6, respectively spraying water to clean the filter plate 106 and filling the energy storage component 6 with water, characterized in that the main body component 1 includes a main pipe body 101, the energy storage component 6 includes an energy storage tank 601, the energy storage tank 601 is fixedly connected to the outer wall of the main pipe body 101, and the circumferential inner wall of the energy storage tank 601 is provided with a lifting plate 6 04, a sealing ring 605 is provided between the lifting plate 604 and the energy storage tank 601 for sealing contact, an elastic component 603 is fixedly connected between the top outer wall of the lifting plate 604 and the energy storage tank 601, and the water inlet component 5 includes a water inlet pipe 501, the water inlet pipe 501 is fixedly connected between the energy storage tank 601 and the main pipe body 101, and a card plate 503 for one-way flow limiting of water is fixedly connected to the circumferential inner wall of the water inlet pipe 501, a vertical hole is provided between the top and the bottom outer wall of the card plate 503, a floating plate 504 for intercepting water is arranged on the top of the card plate 503, a plurality of vertical rods 505 for limiting the floating plate 504 are fixedly connected to the top of the card plate 503, and the top outer walls of the vertical rods 505 are fixedly connected There is a connecting plate 506, and a limit spring 507 for squeezing the floating plate 504 is fixedly connected between the connecting plate 506 and the floating plate 504. The cleaning component 4 includes a cleaning pipe 401, and the cleaning pipe 401 is fixedly connected to the bottom outer wall of the energy storage tank 601. The outer wall of the cleaning pipe 401 is fixedly connected to multiple cleaning nozzles 402 facing the filter plate 106. The water entering the cleaning pipe 401 will be sprayed toward the filter plate 106 through the cleaning nozzle 402 to clean the filter plate 106; the control component 7 includes a valve ring 704, and the circumferential inner wall of the valve ring 704 is rotatably connected to a valve flap 705 for blocking and opening the valve ring 704, and the top of the valve flap 705 is fixedly connected to a rotating rod 7 for controlling the valve flap 705 02, the sewage discharge component 2 includes a sewage discharge pipe 201, which is fixedly connected to the outer wall of the main body 101, and the impurities after flushing are discharged through the sewage discharge pipe 201; when the water hammer effect occurs, the water in the main body 101 pushes the floating plate 504 open, and the floating plate 504 squeezes the limiting spring 507. When the water hammer effect disappears, the floating plate 504 blocks the water in the energy storage tank 601 from flowing out through the water inlet pipe 501 under the limit of the limiting spring 507. Under the action of water pressure, the lifting plate 604 is lifted up and gradually compresses the elastic component 603. After the water hammer effect disappears, the elastic component 603 applies pressure to spray the water in the energy storage tank 601 through the cleaning nozzle 402 to impact and clean the filter plate 106.

[0033] like Figure 2 and Figure 5As shown, a sealing component 3 for sealing the main component 1 is arranged inside the main body 101, and the sealing component 3 includes a sealing plate 303, and the sealing plate 303 is located between the filter plate 106 and the water inlet of the main body 101. The circumferential inner wall of the main body 101 is fixedly connected to a sealing ring 302 for placing the sealing plate 303, and the sealing plate 303 is rotatably connected between the inner walls of the sealing ring 302. The circumferential outer wall of the main body 101 is fixedly connected to a first mounting platform 304, and the bottom of the first mounting platform 304 The outer wall is fixedly connected with a sealing motor 301 electrically connected to the sealing plate 303. The sealing motor 301 drives the sealing plate 303 to rotate, thereby sealing the main body 101 and improving the sewage discharge capacity of the impurities in the main body 101. When the sealing plate 303 seals the main body 101, the impurities cleaned by the filter plate 106 will accumulate between the filter plate 106 and the sealing plate 303, and be discharged along the sewage pipe 201, so as to prevent the impurities from flowing back along the main body 101.

[0034] like Figure 6 As shown, the bottom inner wall of the energy storage tank 601 is fixedly connected with a pressure plate electrically connected to the closed motor 301. When the lifting plate 604 rises and does not contact the pressure plate, the closed motor 301 drives the closed plate 303 to close the closed ring 302. When the lifting plate 604 descends and contacts the pressure plate, the closed motor 301 drives the closed plate 303 to open the closed ring 302, and the fluid is transported normally.

[0035] like Figure 7 As shown, the top of the main body 101 is fixedly connected to a second mounting platform 607 supporting an energy storage tank 601, the energy storage tank 601 is fixedly connected to the top of the second mounting platform 607, a through hole 606 is opened on the top of the energy storage tank 601, and a plurality of limit rods 602 for maintaining the stability of the lifting plate 604 are fixedly connected between the top and the bottom of the energy storage tank 601, and the lifting plate 604 is sealed and sleeved on the outer wall of the limit rods 602.

[0036] like Figure 6 As shown, a sewage valve for opening and closing the sewage pipe 201 is fixedly connected to the inner wall of the sewage pipe 201 , and a control valve 202 for controlling the sewage valve is fixedly connected to the outer wall of the sewage pipe 201 .

[0037] It should be noted that for the sake of ease of use and maintenance, the elastic component 603 used in this embodiment is a spring. In other embodiments, the elastic component 603 can adopt an elastic electromagnetic damping structure. The advantage of adopting an elastic electromagnetic damping structure is that its elastic coefficient K is adjustable, so that the elastic coefficient K can be adjusted according to fluids of different materials, thereby achieving elastic buffering and extrusion with different effects, and the elastic component 603 can not only adopt the spring and elastic electromagnetic damping structure mentioned above.

[0038] like Fig. 9 As shown, the bottom inner wall of the water inlet pipe 501 is fixedly connected with a screening component 502 for preliminary interception of water, and the outer wall of the cleaning pipe 401 is fixedly connected with a cleaning branch pipe 403 for flushing the screening component 502. Part of the water entering the cleaning pipe 401 enters the cleaning branch pipe 403 to flush the screening component 502.

[0039] like Fig. 9 As shown, the screening component 502 includes a screening plate with screening holes. After the small particles of impurities in the fluid pass through the screening plate and enter the energy storage tank 601 , they are sprayed out by the cleaning nozzle 402 to clean the filter plate 106 .

[0040] like Figure 1 As shown, the elastic component 603 is a spring.

[0041] like Figure 3 As shown, the outer walls of both ends of the main pipe body 101 are fixedly connected with the first mounting plate 102, and one end of the first mounting plate 102 is fixedly connected with the mounting ring 105. When the mounting ring 105 is installed and docked with the main pipe body 101, the mounting ring 105 plays a sealing role.

[0042] It should be noted that when the rotating disk 703 is rotated, the rotating rod 702 will be driven to rotate, and then the valve flap 705 will be driven to rotate, so that the opening and closing of the main body 101 can be controlled. When fluid passes through the main body 101, the filter plate 106 can filter the fluid, and when the water hammer effect occurs, the water in the main body 101 will push the floating plate 504 open, and make the floating plate 504 squeeze the limiting spring 507. When the water hammer effect disappears, the floating plate 504 blocks the water in the energy storage tank 601 from flowing out through the water inlet pipe 501 under the action of the limiting spring 507, thereby achieving a one-way water inlet effect. The water in the energy storage tank 601 pushes up the lifting plate 604 under the action of the water pressure. At this time, the lifting plate 604 will gradually compress the elastic component 603. After the water hammer effect disappears, the water in the energy storage tank 601 will be squeezed into the cleaning pipe 401 under the pressure of the elastic component 603, and enter the cleaning pipe 401. Water will be sprayed toward the filter plate 106 through the cleaning nozzle 402 to clean the filter plate 106. Before the water in the main body 101 enters the energy storage tank 601, the screening component 502 will preliminarily screen the water to intercept larger impurities and only allow small particles of impurities to enter the energy storage tank 601. When the water in the energy storage tank 601 is sprayed out through the cleaning nozzle 402, the water flow is accompanied by small particles of impurities, thereby providing a stronger cleaning effect on the filter plate 106. When the water hammer effect occurs, when the lifting plate 604 rises and does not contact the pressure plate, the closing motor 301 drives the closing plate 303 to close the closing ring 302. When the lifting plate 604 descends and contacts the pressure plate, the closing motor 301 drives the closing plate 303 to open the closing ring 302. After the closing plate 303 closes the closing ring 302, impurities will accumulate between the filter plate 106 and the closing plate 303 and be discharged through the sewage pipe 201.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A gate valve with a filtering function, comprising a main body component (1) and a control component (7) for opening and closing the main body component (1), a sewage discharge component (2) for discharging sewage, a filter plate (106) for intercepting impurities, an energy storage component (6) for reducing the pressure of water, and a cleaning component (4) and a water inlet component (5) fixed to the bottom of the energy storage component (6) for spraying water to clean the filter plate (106) and filling the energy storage component (6) with water, respectively, wherein: The main body component (1) comprises a main body (101); the energy storage component (6) comprises an energy storage tank (601); the energy storage tank (601) is fixedly connected to the outer wall of the main body (101); a lifting plate (604) is provided on the circumferential inner wall of the energy storage tank (601); a sealing ring (605) is provided between the lifting plate (604) and the energy storage tank (601) in sealing contact; an elastic component (603) is fixedly connected between the top outer wall of the lifting plate (604) and the energy storage tank (601); and the water inlet component (5) comprises a water inlet pipe (501); the water inlet pipe (501) is fixedly connected between the energy storage tank (601) and the main body (101); a card plate (503) for unidirectional flow restriction of water is fixedly connected to the circumferential inner wall of the water inlet pipe (501); a vertical opening is provided between the top and bottom outer walls of the card plate (503). A hole is formed on the top of the card plate (503) and a floating plate (504) for intercepting water is arranged. A plurality of vertical rods (505) for limiting the floating plate (504) are fixedly connected to the top of the card plate (503). A connecting plate (506) is fixedly connected between the top outer walls of the vertical rods (505). A limiting spring (507) for squeezing the floating plate (504) is fixedly connected between the connecting plate (506) and the floating plate (504). The cleaning component (4) comprises a cleaning pipe (401). The cleaning pipe (401) is fixedly connected to the bottom outer wall of the energy storage tank (601). A plurality of cleaning nozzles (402) facing the filter plate (106) are fixedly connected to the outer wall of the cleaning pipe (401). Water entering the cleaning pipe (401) is sprayed toward the filter plate (106) through the cleaning nozzles (402) to clean the filter plate (106). The control component (7) comprises a valve ring (704), the circumferential inner wall of the valve ring (704) is rotatably connected to a valve flap (705) for blocking and opening the valve ring (704), the top of the valve flap (705) is fixedly connected to a rotating rod (702) for controlling the valve flap (705), and the sewage discharge component (2) comprises a sewage discharge pipe (201), the sewage discharge pipe (201) is fixedly connected to the outer wall of the main pipe body (101), and impurities after flushing are discharged through the sewage discharge pipe (201); When a water hammer effect occurs, the water in the main body (101) pushes the floating plate (504) open, and the floating plate (504) squeezes the limit spring (507). When the water hammer effect disappears, the floating plate (504) blocks the water in the energy storage tank (601) from flowing out through the water inlet pipe (501) under the limit of the limit spring (507). Under the action of water pressure, the lifting plate (604) is lifted up and gradually compresses the elastic component (603). After the water hammer effect disappears, the elastic component (603) applies pressure to spray the water in the energy storage tank (601) out through the cleaning nozzle (402), thereby impacting and cleaning the filter plate (106). The main pipe body (101) is provided with a sealing component (3) for sealing the main component (1). The sealing component (3) comprises a sealing plate (303). The sealing plate (303) is located between the filter plate (106) and the water inlet of the main pipe body (101). The circumferential inner wall of the main pipe body (101) is fixedly connected to a sealing ring (302) for placing the sealing plate (303). The sealing plate (303) is rotatably connected between the inner walls of the sealing ring (302). The circumferential outer wall of the main pipe body (101) is fixedly connected to a first mounting platform (304). The bottom outer wall of the first mounting platform (304) is fixedly connected to a sealing motor (301) electrically connected to the sealing plate (303). The sealing motor (301) drives the sealing plate (303) to rotate, thereby sealing the main pipe body (101) and improving the sewage discharge capability of the impurities in the main pipe body (101). A pressure plate electrically connected to the closed motor (301) is fixedly connected to the inner wall of the bottom of the energy storage tank (601); when the lifting plate (604) rises and is not in contact with the pressure plate, the closed motor (301) drives the closed plate (303) to close the closed ring (302); when the lifting plate (604) descends and contacts the pressure plate, the closed motor (301) drives the closed plate (303) to open the closed ring (302), and the fluid is transported normally.

2. A gate valve with filtering function according to claim 1, characterized in that: The top of the main pipe body (101) is fixedly connected to a second mounting platform (607) supporting the energy storage tank (601); the energy storage tank (601) is fixedly connected to the top of the second mounting platform (607); a through hole (606) is formed on the top of the energy storage tank (601); a plurality of limiting rods (602) for maintaining the stability of the lifting plate (604) are fixedly connected between the top and bottom of the energy storage tank (601); the lifting plate (604) is sealingly sleeved on the outer wall of the limiting rods (602).

3. The gate valve with filtering function according to claim 1, characterized in that: A sewage valve for opening and closing the sewage pipe (201) is fixedly connected to the inner wall of the sewage pipe (201), and a control valve (202) for controlling the sewage valve is fixedly connected to the outer wall of the sewage pipe (201).

4. The gate valve with filtering function according to claim 1, characterized in that: A screening assembly (502) for initially intercepting water is fixedly connected to the inner wall at the bottom of the water inlet pipe (501), and a cleaning branch pipe (403) for flushing the screening assembly (502) is fixedly connected to the outer wall of the cleaning pipe (401); part of the water entering the cleaning pipe (401) enters the cleaning branch pipe (403) to flush the screening assembly (502).

5. The gate valve with filtering function according to claim 4, characterized in that: The screening component (502) comprises a screening plate with screening holes formed thereon. Small particles of impurities in the fluid enter the energy storage tank (601) through the screening plate and are then sprayed out through the cleaning nozzle (402) to clean the filter plate (106).

6. The gate valve with filtering function according to claim 1, characterized in that: The elastic component (603) is a spring.

7. A gate valve with filtering function according to any one of claims 1 to 6, characterized in that: The outer walls at both ends of the main pipe body (101) are fixedly connected to a first mounting plate (102), and one end of the first mounting plate (102) is fixedly connected to a mounting ring (105); when the first mounting plate (102) is mounted and docked with the main pipe body (101), the mounting ring (105) plays a sealing role.

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