An intelligent pressure-maintaining valve

Abstract

The present invention belongs to the technical field of pressure-maintaining valves, and discloses an intelligent pressure-maintaining valve, including a valve body, an input pipe and an output pipe are arranged on the front side of the valve body, the input pipe is located on the left side of the output pipe, a hydraulically controlled one-way valve is arranged on the top of the valve body, an electromagnetic reversing valve is arranged on the top of the hydraulically controlled one-way valve, a heat sink is fixedly connected to the front and rear sides of the electromagnetic reversing valve, a piston cylinder is fixedly connected to the top of the valve body, and a piston plate is movably sleeved in the inner cavity of the piston cylinder. The present invention uses water to assist in heat dissipation of the valve body, the hydraulically controlled one-way valve, and the heat sink, and cleans the dust on the surface of the valve body, the hydraulically controlled one-way valve, and the heat sink by spraying water, so as to avoid the accumulation of dust affecting the heat dissipation performance, thereby avoiding the electronic components of the valve body, the hydraulically controlled one-way valve, and the electromagnetic reversing valve from being damaged when used in an environment with a high temperature, thereby affecting the service life.

Description

Technical Field

[0001] The present invention belongs to the technical field of pressure-maintaining valves, and in particular relates to an intelligent pressure-maintaining valve. Background Art

[0002] Solenoid reversing valves are widely used in pipelines for conveying liquids such as tap water and oil. By setting a solenoid reversing valve in the conveying pipeline, when the liquid passes through the solenoid reversing valve, the conveying direction can be changed by the solenoid reversing valve. The pressure-maintaining valve closes the solenoid reversing valve according to the pressure value when the solenoid reversing valve is working, so as to avoid the situation where the liquid pressure value cannot be controlled.

[0003] When in use, the intelligent pressure-maintaining valve can actively maintain pressure quickly according to the pressure value. However, the solenoid reversing valve and the intelligent pressure-maintaining valve will generate heat due to the use of electronic components during use. In some environments with high temperatures, the heat of these electronic components will be high, causing damage to the electronic components and reducing their service life. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent pressure-maintaining valve to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an intelligent pressure-maintaining valve, comprising a valve body, an inlet pipe and an outlet pipe are arranged on the front side of the valve body, a hydraulically controlled one-way valve is arranged on the top of the valve body, an electromagnetic reversing valve is arranged on the top of the hydraulically controlled one-way valve, a valve core is arranged in the inner cavity of the valve body, and heat sinks are fixedly connected to the front and rear sides of the electromagnetic reversing valve;

[0006] The top of the valve body is fixedly connected with a piston cylinder, the inner cavity of the piston cylinder is movably sleeved with a piston plate, the bottom end of the piston plate is fixedly connected with a lifting plate, the top of the piston cylinder is fixedly connected with a spray pipe, the valve core is sleeved with a transmission member connected with the lifting plate, the bottom end of the lifting plate is provided with a filter connected with the input pipe, the filter includes a scraper, and the transmission member drives the lifting plate and the scraper to move vertically along with the vibration of the valve core;

[0007] The top end of the piston cylinder is fixedly connected to a spray pipe, the bottom end of the spray pipe is fixedly connected to a one-way water outlet valve, the top of the spray pipe is fixedly connected to a nozzle, the top of the piston cylinder is fixedly connected to a water pumping pipe, and the top of the water pumping pipe is fixedly connected to a one-way water inlet valve.

[0008] Preferably, a cover plate is provided on the left side of the valve body, a piston plate and a valve core are provided in the inner cavity of the valve body, and the piston plate is located on the left side of the valve core.

[0009] Preferably, the transmission member includes a mounting plate arranged on the right side of the valve body, a spring assembly is fixedly connected to one side of the mounting plate close to the center of the valve body, a middle plate is fixedly connected to the side of the spring assembly away from the mounting plate, a damping ring is fixedly connected to the center of the middle plate, a vertical spring is fixedly connected to one side of the middle plate close to the valve core, a sleeve is fixedly connected to one side of the vertical spring close to the valve core, a guide rod is fixedly connected to one side of the sleeve close to the vertical spring, and a sleeve is fixedly connected to the top of the guide rod.

[0010] Preferably, the filter element includes a filter bin arranged in the middle of the input pipe, the inner cavity of the filter bin is slidably connected to a collection box, the top of the collection box is fixedly connected to a filter plate, the filter plate and the left side of the collection box are fixedly connected to a pull-out plate, and the bottom end of the lifting plate is fixedly connected to a scraper.

[0011] Preferably, a water storage tank is fixedly connected to the left side of the valve body, one end of the water pumping pipe is located at the bottom of the inner cavity of the water storage tank, and a adding pipe is fixedly connected to the top of the water storage tank.

[0012] Preferably, the sleeve is movably sleeved on the surface of the lifting plate, the guide rod is movably sleeved on the inner cavity of the damping ring, and the sleeve ring is movably sleeved on the outer surface of the valve core.

[0013] Preferably, the spring assembly consists of a damping telescopic rod and a shock absorbing spring, and the damping telescopic rod is located at the center of the inner cavity of the shock absorbing spring.

[0014] Preferably, a slide groove is provided at the bottom end of the inner cavity of the filter bin, a magnetic sheet is fixedly connected to the inner cavity of the slide groove, a sliding magnetic rod is fixedly connected to the bottom end of the collection box, and the magnetic sheet is magnetically connected to the sliding magnetic rod.

[0015] Preferably, the scraper is composed of a round rod and a rectangular plate in the middle, the round rod is fixedly connected to the middle of the rectangular plate, the rectangular plate is fitted with the surface of the filter plate, and the collecting box is located below the filter plate.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present invention draws water from the inner cavity of the water storage tank into the inner cavity of the piston cylinder through a pumping pipe and a one-way water inlet valve. When the piston plate rises in the inner cavity of the piston cylinder, the water in the inner cavity of the piston cylinder is transported to the nozzle through the one-way water outlet valve and the spray pipe, and then sprayed to the surface of the heat sink through the nozzle. Then the water flows down along the hydraulically controlled one-way valve and the valve body, and the valve body, the hydraulically controlled one-way valve, and the heat sink are assisted in heat dissipation by water. The dust on the surface of the valve body, the hydraulically controlled one-way valve, and the heat sink is cleaned by spraying water to avoid dust accumulation affecting the heat dissipation performance, thereby preventing the electronic components of the valve body, the hydraulically controlled one-way valve, and the electromagnetic reversing valve from being damaged when used in an environment with a high temperature, thereby affecting the service life.

[0018] 2. In the present invention, when the hydraulic oil enters the inner cavity of the valve body, it contacts the valve core, and the high-pressure hydraulic oil will drive the valve core to shake. At this time, the ring is sleeved on the surface of the valve core, and then the valve core in the inner cavity of the ring is vertically cushioned by the vertical spring. At this time, the ring is positioned and guided by the damping of the guide rod and the damping ring, and the middle plate is laterally buffered and guided by the spring assembly, and then the valve core is cushioned, so as to avoid the valve core from colliding with the inner wall of the valve body when it is shaken, which may cause the inner wall of the valve body to be damaged during long-term use.

[0019] 3. When the hydraulic oil enters the inner cavity of the valve body from the input pipe, the present invention contacts the filter plate, thereby filtering the particulate matter in the hydraulic oil through the filter plate. When the lifting plate is lifted or lowered, the scraper is driven to lift or lower, thereby scraping the particulate matter on the surface of the filter plate to the inner cavity of the collection box through the scraper. When a large amount of particulate matter is collected in the inner cavity of the collection box, the pull-out plate is pulled to pull the filter plate and the collection box out of the inner cavity of the filter bin, and then the particulate matter in the inner cavity of the collection box can be processed, thereby improving the purity of the hydraulic oil when entering the inner cavity of the valve body, and preventing the particulate matter in the hydraulic oil from entering the inner cavity of the valve body and causing damage to the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the connection of the hydraulically controlled one-way valve structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the piston connection structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the connection of the structural cover plate of the present invention;

[0023] Figure 4 It is a schematic diagram of the overall connection of the structure of the present invention;

[0024] Figure 5 For the present invention Figure 4 The connection diagram at A is enlarged;

[0025] Figure 6 This is a schematic diagram of the water storage tank connection structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the connection of the filter bin structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the connection of the pull-out plate structure of the present invention.

[0028] In the figure: 1. valve body; 2. input pipe; 3. output pipe; 4. hydraulically controlled one-way valve; 5. electromagnetic reversing valve; 6. cover plate; 7. piston plate; 8. valve core; 9. heat sink; 10. piston cylinder; 11. piston plate; 12. lifting plate; 13. magnetic plate; 14. sliding magnetic rod; 15. one-way water outlet valve; 16. spray pipe; 17. nozzle; 18. water suction pipe; 19. one-way water inlet valve; 20. water storage tank; 21. adding pipe; 22. mounting plate; 23. spring assembly; 24. middle plate; 25. damping ring; 26. vertical spring; 27. collar; 28. guide rod; 29. ​​sleeve; 30. filter bin; 31. scraper; 32. pull-out plate; 33. filter plate; 34. collecting box. DETAILED DESCRIPTION

[0029] 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.

[0030] like Figures 1 to 8 As shown, an embodiment of the present invention provides an intelligent pressure-maintaining valve, including a valve body 1, an inlet pipe 2 and an outlet pipe 3 are arranged on the front side of the valve body 1, a hydraulically controlled one-way valve 4 is arranged on the top of the valve body 1, an electromagnetic reversing valve 5 is arranged on the top of the hydraulically controlled one-way valve 4, a valve core 8 is arranged in the inner cavity of the valve body 1, and heat sinks 9 are fixedly connected to the front and rear sides of the electromagnetic reversing valve 5;

[0031] The top of the valve body 1 is fixedly connected with a piston cylinder 10, the inner cavity of the piston cylinder 10 is movably sleeved with a piston plate 11, the bottom end of the piston plate 11 is fixedly connected with a lifting plate 12, the valve core 8 is sleeved with a transmission member connected with the lifting plate 12, the bottom end of the lifting plate 12 is provided with a filter connected with the input pipe 2, the filter includes a scraper 31, and the transmission member drives the lifting plate 12 and the scraper 31 to move vertically along with the vibration of the valve core 8;

[0032] The top of the piston cylinder 10 is fixedly connected with a spray pipe 16, the bottom of the spray pipe 16 is fixedly connected with a one-way water outlet valve 15, the top of the spray pipe 16 is fixedly connected with a nozzle 17 located above the heat sink 9, the top of the piston cylinder 10 is fixedly connected with a water extraction pipe 18, the top of the water extraction pipe 18 is fixedly connected with a one-way water inlet valve 19;

[0033] The working principle and beneficial effects of the above technical solution are as follows: in daily use, the heat dissipation of the electromagnetic reversing valve 5 is enhanced by the heat sink 9, and the hydraulically controlled one-way valve 4 and the valve body 1 are in contact with the cavity through the shell to dissipate heat;

[0034] Then, the piston plate 11 is raised and lowered in the inner cavity of the piston cylinder 10. When the piston plate 11 descends in the inner cavity of the piston cylinder 10, water is pumped into the inner cavity of the piston cylinder 10 through the pumping pipe 18 and the one-way water inlet valve 19. When the piston plate 11 rises in the inner cavity of the piston cylinder 10, the water in the inner cavity of the piston cylinder 10 is transported to the nozzle 17 through the one-way water outlet valve 15 and the spray pipe 16, and then sprayed to the surface of the heat sink 9 through the nozzle 17. Then the water flows down along the hydraulically controlled one-way valve 4 and the valve body 1, and the water is used to assist in the heat dissipation of the valve body 1, the hydraulically controlled one-way valve 4, and the heat sink 9. In addition, the dust on the surface of the valve body 1, the hydraulically controlled one-way valve 4, and the heat sink 9 is cleaned by spraying water to prevent the accumulation of dust from affecting the heat dissipation performance, thereby preventing the electronic components of the valve body 1, the hydraulically controlled one-way valve 4, and the electromagnetic reversing valve 5 from being damaged when used in an environment with a high temperature, thereby affecting the service life.

[0035] like Figure 2 As shown, an embodiment of the present invention provides an intelligent pressure-maintaining valve, a cover plate 6 is arranged on the left side of a valve body 1, a piston sheet 7 and a valve core 8 are arranged in the inner cavity of the valve body 1, and the piston sheet 7 is located on the left side of the valve core 8;

[0036] The working principle and beneficial effects of the above technical solution are as follows: high-pressure hydraulic oil enters the output pipe 3 from the input pipe 2. When the electromagnetic reversing valve 5 is controlled to change direction, the piston plate 7 and the valve core 8 can be controlled to extend and retract, thereby realizing the on-off of the hydraulic oil from the input pipe 2 to the output pipe 3. When the valve core 8 extends to the deepest part of the inner cavity of the valve body 1, the pressure of the hydraulic oil in the inner cavity of the valve body 1 is maintained.

[0037] like Figure 4 As shown, an embodiment of the present invention provides an intelligent pressure-maintaining valve, wherein the transmission member comprises a mounting plate 22 arranged on the right side of the valve body 1, a spring assembly 23 is fixedly connected to one side of the mounting plate 22 close to the center of the valve body 1, a middle plate 24 is fixedly connected to one side of the spring assembly 23 away from the mounting plate 22, a damping ring 25 is fixedly connected to the center of the middle plate 24, a vertical spring 26 is fixedly connected to one side of the middle plate 24 close to the valve core 8, a sleeve 27 is fixedly connected to one side of the vertical spring 26 close to the valve core 8, a guide rod 28 is fixedly connected to one side of the sleeve 27 close to the vertical spring 26, and a sleeve 29 is fixedly connected to the top of the guide rod 28;

[0038] The working principle and beneficial effects of the above technical solution are as follows: when the hydraulic oil enters the inner cavity of the valve body 1, it contacts the valve core 8, and the high-pressure hydraulic oil drives the valve core 8 to shake. At this time, the sleeve 27 is sleeved on the surface of the valve core 8, and then the vertical spring 26 is used to vertically cushion the valve core 8 in the inner cavity of the sleeve 27. At this time, the sleeve 27 is positioned and guided by the damping of the guide rod 28 and the damping ring 25, and then the middle plate 24 is horizontally buffered and guided by the spring assembly 23, and then the valve core 8 is cushioned, so as to avoid the valve core 8 from colliding with the inner wall of the valve body 1 when it is shaken, thereby causing the inner wall of the valve body 1 to be damaged during long-term use.

[0039] When the valve core 8 is moving, it only needs to move in the inner cavity of the sleeve ring 27 .

[0040] like Figure 7 As shown, an embodiment of the present invention provides an intelligent pressure-maintaining valve, wherein the filter element comprises a filter chamber 30 disposed in the middle of the input pipe 2, the inner cavity of the filter chamber 30 is slidably connected to a collection box 34, the top of the collection box 34 is fixedly connected to a filter plate 33, the filter plate 33 and the left side of the collection box 34 are fixedly connected to a pull-out plate 32, and the bottom end of the lifting plate 12 is fixedly connected to a scraper 31;

[0041] The working principle and beneficial effects of the above technical solution are as follows: when the hydraulic oil enters the inner cavity of the valve body 1 from the input pipe 2, it contacts the filter plate 33, thereby filtering the particulate matter in the hydraulic oil through the filter plate 33; when the lifting plate 12 is lifted or lowered, the scraper 31 is driven to lift or lower, thereby scraping the particulate matter on the surface of the filter plate 33 to the inner cavity of the collecting box 34 through the scraper 31; when a large amount of particulate matter is collected in the inner cavity of the collecting box 34, the pull-out plate 32 is pulled to pull the filter plate 33 and the collecting box 34 out of the inner cavity of the filter bin 30, and then the particulate matter in the inner cavity of the collecting box 34 is processed, thereby improving the purity of the hydraulic oil when it enters the inner cavity of the valve body 1, and preventing the particulate matter in the hydraulic oil from entering the inner cavity of the valve body 1, causing damage to the valve body 1.

[0042] like Figure 6 As shown, the embodiment of the present invention provides an intelligent pressure-maintaining valve, the left side of the valve body 1 is fixedly connected to a water storage tank 20, one end of the water pumping pipe 18 is located at the bottom of the inner cavity of the water storage tank 20, and the top of the water storage tank 20 is fixedly connected to a adding pipe 21;

[0043] The working principle and beneficial effects of the above technical solution are as follows: water is added to the inner cavity of the water storage tank 20 through the adding pipe 21, and one end of the water pumping pipe 18 is located at the bottom of the inner cavity of the water storage tank 20, so that when the inner cavity of the piston cylinder 10 descends, the piston plate 11 can draw the water in the inner cavity of the water storage tank 20 into the inner cavity of the piston cylinder 10 through the water pumping pipe 18 and the one-way water inlet valve 19, and then the bottom end of the piston plate 11 is fixedly connected with the top end of the lifting plate 12, so that when the lifting plate 12 is lifted or lowered, it can drive the piston plate 11 to lift or lower in the inner cavity of the piston cylinder 10.

[0044] like Figure 4 As shown, the embodiment of the present invention provides an intelligent pressure-maintaining valve, wherein the sleeve 29 is movably sleeved on the surface of the lifting plate 12, the guide rod 28 is movably sleeved on the inner cavity of the damping ring 25, and the sleeve ring 27 is movably sleeved on the outer surface of the valve core 8;

[0045] The working principle and beneficial effects of the above technical solution are: by damping the guide rod 28 through the damping ring 25, the vertical spring 26 can be positioned and guided by the guide rod 28, thereby avoiding the vertical spring 26 from being offset when the vertical spring 26 is deformed.

[0046] like Figure 2 As shown, an embodiment of the present invention provides an intelligent pressure-maintaining valve, wherein the spring assembly 23 is composed of a damping telescopic rod and a shock-absorbing spring, and the damping telescopic rod is located at the center of the inner cavity of the shock-absorbing spring;

[0047] The working principle and beneficial effects of the above technical solution are as follows: by setting the shock-absorbing spring, the valve core 8 drives the guide rod 28 to move when it shakes, and the guide rod 28 drives the middle plate 24 to move when it moves. At this time, the shock-absorbing spring is used to perform transverse shock absorption on the middle plate 24, and then the guide rod 28 is used to perform transverse shock absorption on the sleeve ring 27, and then the shock-absorbing spring is positioned and guided by the setting of the damping telescopic rod.

[0048] like Figure 8 As shown, an embodiment of the present invention provides an intelligent pressure-maintaining valve, a slide groove is provided at the bottom end of the inner cavity of the filter bin 30, a magnetic sheet 13 is fixedly connected to the inner cavity of the slide groove, a sliding magnetic rod 14 is fixedly connected to the bottom end of the collection box 34, and the magnetic sheet 13 is magnetically connected to the sliding magnetic rod 14;

[0049] The working principle and beneficial effects of the above technical solution are as follows: through the setting of the slide groove, the collection box 34 is slidably connected to the inner cavity of the slide groove through the sliding magnetic rod 14, and then the magnetic sheet 13 is magnetically connected to the sliding magnetic rod 14, so as to fix the collection box 34 and the filter plate 33, and when the hydraulic oil flows from the inner cavity of the input pipe 2, the filter plate 33 is prevented from moving in the inner cavity of the filter bin 30.

[0050] like Figure 8As shown, an embodiment of the present invention provides an intelligent pressure-maintaining valve, wherein the scraper 31 is composed of a round rod and a rectangular plate in the middle, the round rod is fixedly connected to the middle of the rectangular plate, the rectangular plate is fitted with the surface of the filter plate 33, and the collection box 34 is located below the filter plate 33;

[0051] The working principle and beneficial effects of the above technical solution are: the scraper 31 is driven to rise and fall by the lifting plate 12, so that the particles accumulated on the surface of the filter plate 33 are scraped off by the scraper 31 to the inner cavity of the collection box 34 for collection, thereby improving the purity of the hydraulic oil.

[0052] Working principle and use process: water is added from the adding pipe 21 to the inner cavity of the water storage tank 20, and the high-pressure hydraulic oil enters the output pipe 3 from the input pipe 2. When the electromagnetic reversing valve 5 is controlled to change direction, the piston plate 7 and the valve core 8 can be controlled to expand and contract, thereby realizing the on-off of the hydraulic oil from the input pipe 2 to the output pipe 3. When the valve core 8 extends to the deepest part of the inner cavity of the valve body 1, the pressure of the hydraulic oil in the inner cavity of the valve body 1 is maintained;

[0053] When the hydraulic oil in the inner cavity of the valve body 1 flows, the valve core 8 vibrates due to the oil pressure. At this time, the outer surface of the valve core 8 is sleeved by the collar 27, and then the valve core 8 in the inner cavity of the collar 27 is vertically buffered by the vertical spring 26. At this time, the collar 27 is positioned and guided by the damping of the guide rod 28 and the damping ring 25, and the middle plate 24 is buffered and guided horizontally by the spring assembly 23;

[0054] When the guide rod 28 moves vertically, it drives the sleeve 29 to move vertically, and the sleeve 29 drives the lifting plate 12 to move up and down. When the lifting plate 12 moves up and down, it drives the piston plate 11 to move up and down in the inner cavity of the piston cylinder 10. When the piston plate 11 descends in the inner cavity of the piston cylinder 10, the water in the inner cavity of the water storage tank 20 is pumped into the inner cavity of the piston cylinder 10 through the water pumping pipe 18 and the one-way water inlet valve 19. When the piston plate 11 rises in the inner cavity of the piston cylinder 10, the water is transported to the nozzle 17 along the spray pipe 16 and the one-way water outlet valve 15, and the water is sprayed onto the surface of the heat sink 9 through the nozzle 17, thereby improving the heat dissipation performance of the heat sink 9;

[0055] When the hydraulic oil enters from the input pipe 2, the hydraulic oil is filtered through the filter plate 33. When the lifting plate 12 is lifted or lowered, the scraper plate 31 is driven to lift or lower in the inner cavity of the filter bin 30, so that the particles on the surface of the filter plate 33 are scraped off to the inner cavity of the collection box 34 by the scraper plate 31. When the filter plate 33 has been used for a long time, the pull-out plate 32 is pulled out from the inner cavity of the filter bin 30, and then the particles in the inner cavity of the collection box 34 are cleaned, and then the pull-out plate 32 is inserted into the inner cavity of the filter bin 30, so that the sliding magnetic rod 14 and the magnetic sheet 13 are magnetically attracted, thereby fixing the filter plate 33.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] 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 defined by the appended claims and their equivalents.

Claims

1. An intelligent pressure-maintaining valve, comprising a valve body (1), characterized in that: An input pipe (2) and an output pipe (3) are arranged on the front side of the valve body (1); a hydraulically controlled one-way valve (4) is arranged on the top of the valve body (1); an electromagnetic reversing valve (5) is arranged on the top of the hydraulically controlled one-way valve (4); a valve core (8) is arranged in the inner cavity of the valve body (1); and heat sinks (9) are fixedly connected to the front and rear sides of the electromagnetic reversing valve (5); The top end of the valve body (1) is fixedly connected to a piston cylinder (10), the inner cavity of the piston cylinder (10) is movably sleeved with a piston plate (11), the bottom end of the piston plate (11) is fixedly connected to a lifting plate (12), a transmission member connected to the lifting plate (12) is sleeved on the valve core (8), and a filter member connected to the input pipe (2) is provided at the bottom end of the lifting plate (12), the filter member includes a scraper (31), and the transmission member drives the lifting plate (12) and the scraper (31) to move vertically along with the vibration of the valve core (8); The top end of the piston cylinder (10) is fixedly connected to a spray pipe (16), the bottom end of the spray pipe (16) is fixedly connected to a one-way water outlet valve (15), the top of the spray pipe (16) is fixedly connected to a nozzle (17), the top end of the piston cylinder (10) is fixedly connected to a water extraction pipe (18), the top of the water extraction pipe (18) is fixedly connected to a one-way water inlet valve (19); a cover plate (6) is provided on the left side of the valve body (1), a piston plate (7) and a valve core (8) are provided in the inner cavity of the valve body (1), the piston plate (7) is located on the left side of the valve core (8); the transmission member comprises a mounting plate (22) provided on the right side of the valve body (1), the A spring assembly (23) is fixedly connected to one side of the mounting plate (22) close to the center of the valve body (1); a middle plate (24) is fixedly connected to the spring assembly (23) on the side away from the mounting plate (22); a damping ring (25) is fixedly connected to the center of the middle plate (24); a vertical spring (26) is fixedly connected to one side of the middle plate (24) close to the valve core (8); a sleeve (27) is fixedly connected to one side of the vertical spring (26) close to the valve core (8); a guide rod (28) is fixedly connected to one side of the sleeve (27) close to the vertical spring (26); and a sleeve (29) is fixedly connected to the top of the guide rod (28).

2. The intelligent pressure-maintaining valve according to claim 1, characterized in that: The filter element comprises a filter bin (30) arranged in the middle of the input pipe (2); the inner cavity of the filter bin (30) is slidably connected to a collection box (34); the top of the collection box (34) is fixedly connected to a filter plate (33); the left sides of the filter plate (33) and the collection box (34) are fixedly connected to a pull-out plate (32); and the bottom end of the lifting plate (12) is fixedly connected to a scraper plate (31).

3. The intelligent pressure-maintaining valve according to claim 1, characterized in that: The left side of the valve body (1) is fixedly connected to a water storage tank (20), one end of the water extraction pipe (18) is located at the bottom of the inner cavity of the water storage tank (20), and the top end of the water storage tank (20) is fixedly connected to a filling pipe (21).

4. The intelligent pressure-maintaining valve according to claim 1, characterized in that: The sleeve (29) is movably sleeved on the surface of the lifting plate (12), the guide rod (28) is movably sleeved on the inner cavity of the damping ring (25), and the sleeve ring (27) is movably sleeved on the outer surface of the valve core (8).

5. The intelligent pressure-maintaining valve according to claim 1, characterized in that: The spring assembly (23) consists of a damping telescopic rod and a shock absorbing spring, and the damping telescopic rod is located at the center of the inner cavity of the shock absorbing spring.

6. The intelligent pressure-maintaining valve according to claim 2, characterized in that: A slide groove is provided at the bottom end of the inner cavity of the filter bin (30), a magnetic sheet (13) is fixedly connected to the inner cavity of the slide groove, a sliding magnetic rod (14) is fixedly connected to the bottom end of the collection box (34), and the magnetic sheet (13) is magnetically connected to the sliding magnetic rod (14).

7. The intelligent pressure-maintaining valve according to claim 2, characterized in that: The scraper (31) is composed of a round rod in the middle and a rectangular plate, the round rod is fixedly connected to the middle of the rectangular plate, the rectangular plate is in contact with the surface of the filter plate (33), and the collection box (34) is located below the filter plate (33).

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