A pressure stabilizing valve

Abstract

The application provides a steady valve, and belongs to the technical field of valves.The device comprises a valve body, a positioning plate fixedly arranged on the inner wall of the valve body, and a plurality of round rods movably embedded in the inner wall of the positioning plate.In use, water flows into the valve body through the water inlet pipe and flows out through the water outlet pipe.The adsorbing material and the fluid in the filter cylinder are fully mixed together when the plurality of supporting rods rotate.The impurities in the fluid are adsorbed by the adsorbing material.The filtered fluid is discharged through the plurality of filter holes on the filter cylinder.The plurality of first scrapers are driven to rotate when the plurality of supporting rods rotate.The inner wall of the filter cylinder is scraped when the plurality of first scrapers rotate.The impurities adhered to the inner wall of the filter cylinder are scraped off.The plurality of filter holes are prevented from being blocked by the impurities, and the flow rate of the fluid is prevented from being affected.Therefore, the impurities in the fluid are filtered in multiple stages when the valve is used, and the valve is prevented from being damaged by the impurities.

Description

Technical Field

[0001] This invention relates to the field of valves, and more particularly to a pressure regulating valve. Background Technology

[0002] In chemical production processes, valves are important control components and are widely used in the transportation and regulation of various fluid media. Especially in the transportation of chemical media, the pressure and impurities of the fluid have a significant impact on the performance and service life of valves.

[0003] Many chemical valves rely solely on simple filters to remove impurities from fluids. However, this design often suffers from incomplete filtration. Due to the potentially excessively large pore size of the filter, larger impurities can enter the valve, potentially damaging critical components such as the valve seat and valve core. Some existing valve designs cannot effectively and stably control fluid pressure, especially when fluid flow varies significantly, leading to pressure fluctuations. The lack of effective pressure stabilization devices prevents valves from achieving precise pressure control when handling fluid media, potentially causing instability in chemical production processes and even posing a risk of equipment damage. Summary of the Invention

[0004] This invention provides a pressure regulating valve. When using the valve, it performs multi-stage filtration of impurities in the fluid to prevent impurities from damaging the valve. During the filtration process, it can prevent impurities from clogging the pores on the filter screen, thereby increasing the fluid flow rate. When using the valve, it can automatically adjust the pressure to achieve pressure stabilization.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pressure regulating valve, the device comprising: Valve body; A positioning plate is fixedly installed on the inner wall of the valve body, and multiple round rods are movably embedded in the inner wall of the positioning plate. The multiple round rods can slide on the inner wall of the positioning plate, and the filter structure and the valve body are connected together through the multiple round rods. A fixing plate is fixedly installed on one side of the plurality of round rods, and a filter screen is fixedly embedded in the inner wall of the fixing plate. The fluid enters the filter cylinder through the holes on the filter screen and performs primary filtration of impurities in the fluid. The rotating rod is located at the center of one side of the filter screen via a bearing, and a helical blade is threaded into one side of the rotating rod. The rotating rod can rotate via the bearing, and the helical blade can be removed from the rotating rod by rotating it. The filter cartridge is threaded into the inner wall of the fixed plate, and a mesh bag is fixedly installed on one side of the filter cartridge.

[0006] As a further improvement of the present invention: a connecting plate is fixedly provided at one end of the rotating rod, and multiple support rods are fixedly provided on one side of the connecting plate. A first scraper is fixedly provided at one end of each of the multiple support rods. Multiple filter holes are opened on the outer surface of the filter cylinder. When the multiple support rods rotate, they drive the multiple first scrapers to rotate. One side of the multiple first scrapers is in close contact with the inner wall of the filter cylinder. When the multiple first scrapers rotate, they scrape the inner wall of the filter cylinder to remove impurities that are stuck to the inner wall of the filter cylinder, preventing impurities from clogging the multiple filter holes and affecting the flow rate of the fluid.

[0007] As a further improvement of the present invention: a cylinder is fixedly provided on one side of the fixing plate, and water inlet pipe and water outlet pipe are provided on both sides of the valve body through flanges. A threaded groove for connecting with the spiral blade is opened on the outer surface of the rotating rod. The chemical medium flows into the interior of the valve body through the water inlet pipe and flows out through the water outlet pipe. The two flanges connect the water inlet pipe and the water outlet pipe together.

[0008] As a further improvement of the present invention: multiple slots are provided on the outer surface of the rotating rod, and a horizontal plate is slidably provided on the inner wall of each of the multiple slots, and the multiple horizontal plates can slide on the inner wall of the multiple slots respectively.

[0009] As a further improvement of the present invention: a second scraper is provided on one side of each of the multiple horizontal plates by screws, and a circular plate is movably sleeved on the outer surface of the rotating rod. By rotating the screws, the multiple second scrapers can be removed, and the circular plate can slide on the outer surface of the rotating rod.

[0010] As a further improvement of the present invention: a compression spring is fixedly provided on one side of the circular plate, a sleeve is threaded on the outer surface of the rotating rod, and one side of a plurality of second scrapers is disposed on one side of the filter screen. By rotating the sleeve, one side of the sleeve pushes the circular plate. The compression spring has elastic force, and the elastic force of the sleeve and the compression spring pushes the plurality of horizontal plates, further causing the plurality of second scrapers to be in close contact with one side of the filter screen. When the rotating rod rotates, it drives the plurality of horizontal plates to rotate, further causing the plurality of second scrapers to rotate. The rotating plurality of second scrapers scrape off the impurities on the filter screen.

[0011] As a further improvement of the present invention: a cover is installed on one side of the valve body, and a valve cover is set on one side of the cover by a nut. An adjusting screw for adjusting pressure is provided on the inner wall of the valve cover. The valve cover can be removed from the cover by rotating it. At this time, the adjusting screw can be rotated in different directions.

[0012] As a further improvement of the present invention: an upper spring seat is provided on the outer surface of the adjusting screw, an adjusting spring is provided on one side of the upper spring seat, and a diaphragm is installed on the inner wall of the valve body, so that one end of the adjusting screw is pressed down or raised, and the adjusting screw drives the upper spring seat to move to different positions. When the upper spring seat is in the upper position, the compression of the adjusting spring by the upper spring seat is relaxed, and when the upper spring seat is in the lower position, the compression of the adjusting spring is increased.

[0013] As a further improvement of the present invention: a lower spring seat is provided on one side of the diaphragm, a valve core is provided on one side of the lower spring seat, a sealing ring is provided on one side of the valve core, and a valve seat is provided on the inner wall of the valve body. The fluid medium flows into the interior of the valve body after passing through the inlet pipe and the filter. The lower spring seat is flexible, and the valve stem and the lower spring seat are connected together. When the fluid flows through, the fluid will push the sealing ring upward, and the pressure is balanced by adjusting the spring.

[0014] As a further improvement of the present invention: a valve stem is provided on one side of the valve seat, two pressure gauges are installed on the inner wall of the valve body, and a bottom cover is provided on one side of the valve body through a sealing gasket. The pressure inside the valve body can be known through the two pressure gauges, and the sealing gasket improves the sealing between the bottom cover and the valve body.

[0015] As a further improvement of the present invention: a hollow bladder is fixedly connected inside the diaphragm. The top of the hollow bladder has several circular grooves. A repair agent bladder is fixedly connected to the top of the inner wall of the hollow bladder. Several nozzles are fixedly connected to the top of the repair agent bladder. The outer walls of the nozzles are fixedly connected to the inner walls of the grooves. A pointed pressure ring is fixedly connected to the bottom of the repair agent bladder. Several short rods are fixedly connected to the bottom of the pointed pressure ring. Push rings are fixedly connected to the bottom of the short rods. The bottom of the push rings is fixedly connected to the bottom of the inner wall of the hollow bladder. The repair agent in the middle of the repair agent bladder flows through the nozzles to the damaged area of ​​the diaphragm, which can prevent the cracks in the damaged area of ​​the diaphragm from expanding and reduce pressure leakage at the diaphragm.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this invention, when using the valve, the chemical medium flows into the valve body through the inlet pipe and out through the outlet pipe. Two flanges connect the inlet and outlet pipes. When the fluid medium enters the inlet pipe, it passes through the spiral blades, which further drive the spiral blades to rotate. The fluid then passes through the perforations on the filter screen into the filter cylinder for primary filtration of impurities. Before use, the filter cylinder is removed from the fixed plate by rotating it. A polymer adsorbent is poured into the filter cylinder, and the filter cylinder is then installed on the fixed plate by rotating it. The fluid that has undergone primary filtration flows into the filter cylinder. When the spiral blades drive the rotating rod to rotate, they also drive the connecting plate. The rotation further drives multiple support rods to rotate, agitating the adsorbent material and fluid inside the filter cylinder and mixing them thoroughly. The adsorbent material adsorbs impurities in the fluid, and the filtered fluid is discharged through multiple filter holes on the filter cylinder. The rotation of the support rods also drives multiple first scrapers to rotate. One side of each first scraper is in close contact with the inner wall of the filter cylinder, scraping away impurities adhering to the inner wall as they rotate. This prevents impurities from clogging the multiple filter holes and affecting the fluid flow rate. Thus, when using the valve, impurities in the fluid are filtered in multiple stages, preventing impurities from damaging the valve.

[0017] 2. In this invention, when using the valve, impurities are filtered through a filter screen. The holes on the filter screen become clogged by impurities. When the spiral blades rotate, they drive the rotating rod to rotate. Multiple horizontal plates can slide on the inner walls of multiple slots, and a circular plate can slide on the outer surface of the rotating rod. By rotating the sleeve, one side of the sleeve pushes the circular plate. The compression spring has elastic force. Through the elastic force of the sleeve and the compression spring, multiple horizontal plates are pushed, further causing multiple second scrapers to adhere tightly to one side of the filter screen. When the rotating rod rotates, it drives multiple horizontal plates to rotate, further causing multiple second scrapers to rotate. The rotating multiple second scrapers scrape off the impurities on the filter screen, thereby preventing impurities from clogging the holes on the filter screen and increasing the fluid flow rate.

[0018] 3. In this invention, when using the valve body, the valve cover can be removed from the cover by rotating it. At this time, by rotating the adjusting screw in different directions, one end of the adjusting screw can be pressed down or raised, which in turn causes the adjusting screw to move the upper spring seat to different positions. When the upper spring seat is in the upper position, the pressure of the upper spring seat on the adjusting spring is relaxed; when the upper spring seat is in the lower position, the pressure on the adjusting spring is increased, further adjusting the pressure on the lower spring seat. The fluid medium flows into the interior of the valve body after passing through the inlet pipe and filter. The lower spring seat is flexible, and the valve stem and the lower spring seat are connected together. When the fluid flows through, the fluid will push the sealing ring upward. The pressure is balanced by the adjusting spring, so that the valve can adjust the pressure itself and stabilize the pressure when using the valve.

[0019] 4. In this invention, when the diaphragm is damaged due to prolonged use, the pressure at the diaphragm will increase. This increased pressure will compress the bottom of the cavity bladder. Simultaneously, the top of the cavity bladder, under pressure, will cause the push ring to move the pointed pressure ring via the short rod. The movement of the pointed pressure ring will compress the repair agent bladder, thereby directing the repair agent in the middle of the bladder through the nozzle to the damaged area of ​​the diaphragm. This helps prevent the cracks at the damaged area of ​​the diaphragm from expanding and also reduces pressure leakage at the diaphragm, avoiding dangerous situations caused by excessive leakage pressure. Attached Figure Description

[0020] Figure 1 This invention provides a top-view three-dimensional structural diagram of a pressure regulating valve.

[0021] Figure 2 This invention provides a frontal three-dimensional structural diagram of a pressure regulating valve.

[0022] Figure 3 This invention provides a three-dimensional structural diagram of a pressure regulating valve after the inlet pipe has been disassembled.

[0023] Figure 4 This invention provides a three-dimensional structural diagram of a pressure regulating valve after the inlet pipe has been disassembled.

[0024] Figure 5 This invention provides a three-dimensional structural diagram of the helical blades in a pressure regulating valve after disassembly.

[0025] Figure 6 This invention provides a cross-sectional three-dimensional structural diagram of the filter cartridge of a pressure regulating valve.

[0026] Figure 7 This invention provides a cross-sectional view of the valve body in a pressure regulating valve.

[0027] Figure 8 For the present invention Figure 5 A magnified three-dimensional structural diagram of A in the diagram.

[0028] Figure 9 For the present invention Figure 6 A magnified three-dimensional structural diagram of B in the diagram.

[0029] Figure 10 This refers to the shape of the diaphragm in this invention.

[0030] Figure 11 This is a cross-sectional view of the diaphragm in this invention.

[0031] Legend: 1. Valve body; 2. Flange; 201. Fixing plate; 202. Round rod; 203. Filter cylinder; 204. Filter screen; 205. Rotating rod; 206. Spiral blade; 207. Connecting plate; 208. Support rod; 209. First scraper; 210. Filter hole; 211. Mesh bag; 212. Cylinder; 213. Inlet pipe; 214. Outlet pipe; 215. Positioning plate; 216. Threaded groove; 3. Groove; 301. Horizontal plate; 302. Second scraper; 303. Round plate; 304. Sleeve; 30 5. Compression spring; 4. Cover; 401. Valve cover; 402. Adjusting screw; 403. Upper spring seat; 404. Adjusting spring; 405. Diaphragm; 4051. Hollow bladder; 4052. Circular groove; 4053. Nozzle; 4054. Repair agent bladder; 4055. Pointed pressure ring; 4056. Short rod; 4057. Push ring; 406. Lower spring seat; 407. Valve core; 408. Sealing ring; 409. Valve stem; 410. Pressure gauge; 411. Bottom cover; 412. Sealing gasket; 413. Valve seat. Detailed Implementation

[0032] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0033] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0034] Please see Figures 1 to 9This embodiment provides a pressure regulating valve, which includes: a valve body 1; a positioning plate 215, fixedly disposed on the inner wall of the valve body 1, and a plurality of round rods 202 movably embedded in the inner wall of the positioning plate 215; the plurality of positioning plates 215 are connected to a fixing plate 201, the plurality of round rods 202 are inserted into the inner wall of the positioning plate 215, the positioning plate 215 and the fixing plate 201 are connected together, the fixing plate 201 is fixedly disposed on one side of the plurality of round rods 202, and a filter screen 204 is fixedly embedded in the inner wall of the fixing plate 201; the filter screen 204 filters large particulate impurities in the water for the first time, and the rotating rod 20 5. A bearing is installed at the center of one side of the filter screen 204, and a spiral blade 206 is threadedly embedded on one side of the rotating rod 205. The rotating rod 205 can rotate through the bearing. When the fluid medium passes through the spiral blade 206, it can drive the rotating rod 205 to rotate, further causing the rotating rod 205 to rotate. The filter cylinder 203 is threaded into the inner wall of the fixed plate 201, and a mesh bag 211 is fixedly installed on one side of the filter cylinder 203. The fluid is filtered twice through the filter cylinder 203. The mesh bag 211 can catch impurities, and the mesh bag 211 allows the fluid medium to pass through, isolating impurities inside the filter cylinder 203.

[0035] During use, when the fluid medium enters the inlet pipe 213, it passes through the spiral blades 206, which further drive the spiral blades 206 to rotate. The fluid then passes through the holes on the filter screen 204 into the filter cylinder 203, where it undergoes primary filtration of impurities. Before use, the filter cylinder 203 is removed from the fixing plate 201 by rotating it. Polymer adsorbent is poured into the filter cylinder 203, and the filter cylinder 203 is then installed on the fixing plate 201 by rotating it. The fluid that has undergone primary filtration flows into the filter cylinder 203, where the adsorbent adsorbs the impurities. The filtered fluid is then discharged through the multiple filter holes 210 on the filter cylinder 203.

[0036] Please see Figure 10 In one embodiment, the diaphragm 405 has protrusions, which can provide better flexibility and elasticity. The protrusions can increase the elasticity of the diaphragm 405, making it easier to respond to changes in system pressure. As the pressure changes, the diaphragm 405 will undergo corresponding upward or downward displacement, controlling the valve opening, ensuring precise valve adjustment, and adapting to pressure changes in the fluid medium. The protrusions of the diaphragm 405 enhance the rapid response of the diaphragm 405 to pressure fluctuations. In the case of rapid pressure changes, the valve can be adjusted in time to prevent the valve pressure from being too high or too low, thus playing a role in stabilizing pressure.

[0037] Please see Figures 1 to 9In one embodiment, a connecting plate 207 is fixedly provided at one end of the rotating rod 205, and a plurality of support rods 208 are fixedly provided on one side of the connecting plate 207. A first scraper 209 is fixedly provided at one end of each of the plurality of support rods 208. A plurality of filter holes 210 are opened on the outer surface of the filter cylinder 203. When the plurality of first scrapers 209 rotate, they scrape the inner wall of the filter cylinder 203 to remove impurities that are stuck to the inner wall of the filter cylinder 203, thereby preventing impurities from clogging the plurality of filter holes 210 and affecting the flow rate of the fluid.

[0038] Please see Figures 1 to 9 In one embodiment, a cylinder 212 is fixedly installed on one side of the fixing plate 201. Both sides of the valve body 1 are provided with an inlet pipe 213 and an outlet pipe 214 through flanges 2. A threaded groove 216 for connecting with the spiral blade 206 is opened on the outer surface of the rotating rod 205. The chemical medium flows into the interior of the valve body 1 through the inlet pipe 213 and flows out through the outlet pipe 214. The two flanges 2 connect the inlet pipe 213 and the outlet pipe 214 together. The spiral blade 206 and the rotating rod 205 are connected together through the threaded groove 216. When the spiral blade 206 rotates, the spiral direction of the threaded groove 216 becomes tighter and tighter.

[0039] Please see Figures 1 to 9 In one embodiment, a plurality of slots 3 are provided on the outer surface of the rotating rod 205, and a horizontal plate 301 is slidably provided on the inner wall of each of the plurality of slots 3, and the plurality of horizontal plates 301 can slide on the inner wall of the plurality of slots 3 respectively.

[0040] Please see Figures 1 to 9 In one embodiment, a second scraper 302 is provided on one side of a plurality of horizontal plates 301 by screws, and a circular plate 303 is movably sleeved on the outer surface of the rotating rod 205. By rotating the screws, the plurality of second scrapers 302 can be removed, and the circular plate 303 can slide on the outer surface of the rotating rod 205.

[0041] Please see Figures 1 to 9 In one embodiment, a compression spring 305 is fixedly provided on one side of the circular plate 303, and a sleeve 304 is threaded on the outer surface of the rotating rod 205. One side of a plurality of second scrapers 302 is provided on one side of the filter screen 204. By rotating the sleeve 304, one side of the sleeve 304 pushes the circular plate 303. The compression spring 305 has elastic force. The elastic force of the sleeve 304 and the compression spring 305 pushes the plurality of horizontal plates 301, further causing the plurality of second scrapers 302 to be tightly attached to one side of the filter screen 204. When the rotating rod 205 rotates, it drives the plurality of horizontal plates 301 to rotate, further causing the plurality of second scrapers 302 to rotate. The rotating plurality of second scrapers 302 scrape off the impurities on the filter screen 204.

[0042] Please see Figures 1 to 9In one embodiment, a cover 4 is installed on one side of the valve body 1, and a valve cover 401 is provided on one side of the cover 4 by means of a nut. An adjusting screw 402 for adjusting pressure is provided on the inner wall of the valve cover 401. The valve cover 401 can be removed from the cover 4 by rotating it. At this time, the adjusting screw 402 can be rotated in different directions.

[0043] Please see Figures 1 to 9 In one embodiment, an upper spring seat 403 is provided on the outer surface of the adjusting screw 402, and an adjusting spring 404 is provided on one side of the upper spring seat 403. A diaphragm 405 is installed on the inner wall of the valve body 1, which further causes one end of the adjusting screw 402 to press down or rise, and further causes the adjusting screw 402 to drive the upper spring seat 403 to move to different positions. When the upper spring seat 403 is in the upper position, the compression of the upper spring seat 403 on the adjusting spring 404 is relaxed, and when the upper spring seat 403 is in the lower position, the compression of the adjusting spring 404 is increased.

[0044] Please see Figures 1 to 9 In one embodiment, a lower spring seat 406 is provided on one side of the diaphragm 405, a valve core 407 is provided on one side of the lower spring seat 406, a sealing ring 408 is provided on one side of the valve core 407, and a valve seat 413 is provided on the inner wall of the valve body 1. The fluid medium flows into the interior of the valve body 1 after passing through the water inlet pipe 213 and the filter. The lower spring seat 406 is flexible, and the valve stem 409 is connected to the lower spring seat 406. When the fluid flows through, the fluid will push the sealing ring 408 upward, and the pressure is balanced by adjusting the spring 404.

[0045] Please see Figures 1 to 9 In one embodiment, a valve stem 409 is provided on one side of the valve seat 413, two pressure gauges 410 are installed on the inner wall of the valve body 1, and a bottom cover 411 is provided on one side of the valve body 1 through a sealing gasket 412. The pressure inside the valve body 1 can be known through the two pressure gauges 410, and the sealing gasket 412 improves the sealing between the bottom cover 411 and the valve body 1.

[0046] Please see Figures 10 to 11In one embodiment, a hollow capsule 4051 is fixedly connected inside the diaphragm 405. The top of the hollow capsule 4051 has several circular grooves 4052. A repair agent capsule 4054 is fixedly connected to the top of the inner wall of the hollow capsule 4051. Several nozzles 4053 are fixedly connected to the top of the repair agent capsule 4054. The outer walls of the nozzles 4053 are all fixedly connected to the inner walls of the circular grooves 4052. The bottom of the repair agent capsule 4054... A pointed pressure ring 4055 is fixedly connected to the part, and multiple short rods 4056 are fixedly connected to the bottom of the pointed pressure ring 4055. Each of the multiple short rods 4056 is fixedly connected to the bottom of a push ring 4057. The bottom of the push ring 4057 is fixedly connected to the bottom of the inner wall of the cavity 4051. Since the cavity 4051 is located on the inner wall of the diaphragm 405 and is smaller than the diaphragm 405, the cavity 4051 will not affect the normal use of the diaphragm 405.

[0047] Working principle: When using the valve, the chemical medium flows into the valve body 1 through the inlet pipe 213 and out through the outlet pipe 214. Two flanges 2 connect the inlet pipe 213 and the outlet pipe 214. When the fluid medium enters the inlet pipe 213, it passes through the spiral blades 206, further rotating the spiral blades 206. The fluid then passes through the perforations on the filter screen 204 into the filter cylinder 203, where it undergoes primary filtration of impurities. Before use, the filter cylinder 203 is rotated to remove it from the fixing plate 201. Polymer adsorbent is poured into the filter cylinder 203, and it is then mounted on the fixing plate 201 by rotating the filter cylinder 203. The fluid that has undergone primary filtration flows into the filter cylinder 203. When the spiral blades 206 rotate the rotating rod 205... The connecting plate 207 is rotated, which in turn drives multiple support rods 208 to rotate. When the multiple support rods 208 rotate, the adsorbent material and fluid inside the filter cylinder 203 are stirred and fully mixed together. The adsorbent material adsorbs impurities in the fluid. The filtered fluid is discharged through multiple filter holes 210 on the filter cylinder 203. When the multiple support rods 208 rotate, they drive multiple first scrapers 209 to rotate. One side of the multiple first scrapers 209 is in close contact with the inner wall of the filter cylinder 203. When the multiple first scrapers 209 rotate, they scrape the inner wall of the filter cylinder 203 to remove impurities that are stuck to the inner wall of the filter cylinder 203, preventing impurities from clogging the multiple filter holes 210 and affecting the flow rate of the fluid. Thus, when using the valve, impurities in the fluid are filtered in multiple stages to prevent impurities from damaging the valve. When using the valve, impurities are filtered through the filter screen 204. The holes on the filter screen 204 are blocked by impurities. When the spiral blade 206 rotates, it drives the rotating rod 205 to rotate. Multiple horizontal plates 301 can slide on the inner wall of multiple slots 3 respectively, and the circular plate 303 can slide on the outer surface of the rotating rod 205. By rotating the sleeve 304, one side of the sleeve 304 pushes the circular plate 303. The compression spring 305 has elasticity. The elasticity of the sleeve 304 and the compression spring 305 pushes the multiple horizontal plates 301, which further causes the multiple second scrapers 302 to be tightly attached to one side of the filter screen 204. When the rotating rod 205 rotates, it drives the multiple horizontal plates 301 to rotate, which further causes the multiple second scrapers 302 to rotate. The rotating multiple second scrapers 302 scrape off the impurities on the filter screen 204, thereby preventing impurities from blocking the holes on the filter screen 204 and increasing the fluid flow rate. When using the valve body, the valve cover 401 can be removed from the cover 4 by rotating it. At this time, the adjusting screw 402 can be rotated in different directions to make one end of the adjusting screw 402 press down or rise, which in turn causes the adjusting screw 402 to move the upper spring seat 403 to different positions. When the upper spring seat 403 is in the upper position, the pressure of the upper spring seat 403 on the adjusting spring 404 is relaxed. When the upper spring seat 403 is in the lower position, the pressure on the adjusting spring 404 is increased, which further adjusts the pressure on the lower spring seat 406. The fluid medium flows into the interior of the valve body 1 after passing through the water inlet pipe 213 and the filter. The lower spring seat 406 is flexible. The valve stem 409 and the lower spring seat 406 are connected together. When the fluid flows through, the fluid will push the sealing ring 408 upward. The pressure is balanced by adjusting the spring 404. Thus, when using the valve, the valve can adjust the pressure itself to stabilize the pressure. When using the valve body, if the diaphragm 405 is damaged due to prolonged use, the pressure at the diaphragm 405 will increase. This increased pressure will compress the bottom of the cavity bladder 4051. Simultaneously, the top of the cavity bladder 4051, under pressure, will cause the push ring 4057 to push the pointed pressure ring 4055 to move via the short rod 4056. The movement of the pointed pressure ring 4055 will compress the repair agent bladder 4054, thereby causing the repair agent in the middle of the repair agent bladder 4054 to flow through the nozzle 4053 to the damaged area of ​​the diaphragm 405. This helps prevent the cracks at the damaged area of ​​the diaphragm 405 from expanding and also reduces pressure leakage at the diaphragm 405, avoiding dangerous situations caused by excessive leakage pressure.

[0048] It should be noted that when the diaphragm 405 is used under normal pressure, the cavity bladder 4051 can withstand the pressure of the diaphragm 405 under normal operating pressure. Under this pressure, the cavity bladder 4051 will not deform. Only when the diaphragm 405 is damaged and the pressure at the diaphragm 405 increases further will the cavity bladder 4051 be affected by the increased pressure. At the same time, since the cavity bladder 4051 is located on the inner wall of the diaphragm 405 and is smaller than the diaphragm 405, the cavity bladder 4051 will not affect the normal use of the diaphragm 405.

[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A pressure regulating valve, characterized in that, The pressure regulating valve includes: a valve body (1); a positioning plate (215), which is fixedly disposed on the inner wall of the valve body (1), and a plurality of round rods (202) are movably embedded in the inner wall of the positioning plate (215); a fixing plate (201), which is fixedly disposed on one side of the plurality of round rods (202), and a filter screen (204) is fixedly embedded in the inner wall of the fixing plate (201); a rotating rod (205), which is disposed at the center of one side of the filter screen (204) through a bearing, and a spiral blade (206) is threadedly embedded in one side of the rotating rod (205); and a filter cylinder (203), which is threadedly embedded in the inner wall of the fixing plate (201), and a mesh bag (211) is fixedly disposed on one side of the filter cylinder (203). A connecting plate (207) is fixedly provided at one end of the rotating rod (205), and a plurality of support rods (208) are fixedly provided on one side of the connecting plate (207). A first scraper (209) is fixedly provided at one end of each of the support rods (208), and a plurality of filter holes (210) are opened on the outer surface of the filter cylinder (203). The outer surface of the rotating rod (205) is provided with a plurality of slots (3), and a horizontal plate (301) is slidably provided on the inner wall of each of the plurality of slots (3). Each of the multiple horizontal plates (301) has a second scraper (302) provided on one side by screws, and a circular plate (303) is movably sleeved on the outer surface of the rotating rod (205).

2. A pressure regulating valve according to claim 1, characterized in that: A cylinder (212) is fixedly installed on one side of the fixed plate (201). Both sides of the valve body (1) are provided with an inlet pipe (213) and an outlet pipe (214) through flanges (2). A threaded groove (216) for connecting with the spiral blade (206) is opened on the outer surface of the rotating rod (205).

3. A pressure regulating valve according to claim 1, characterized in that: A compression spring (305) is fixedly installed on one side of the circular plate (303), and a sleeve (304) is threaded on the outer surface of the rotating rod (205). One side of a plurality of second scrapers (302) is disposed on one side of the filter screen (204).

4. A pressure regulating valve according to claim 3, characterized in that: A cover (4) is installed on one side of the valve body (1), and a valve cover (401) is provided on one side of the cover (4) by means of a nut. An adjusting screw (402) for adjusting pressure is provided on the inner wall of the valve cover (401).

5. A pressure regulating valve according to claim 4, characterized in that: An upper spring seat (403) is provided on the outer surface of the adjusting screw (402), an adjusting spring (404) is provided on one side of the upper spring seat (403), and a diaphragm (405) is installed on the inner wall of the valve body (1).

6. A pressure regulating valve according to claim 5, characterized in that: A lower spring seat (406) is provided on one side of the diaphragm (405), a valve core (407) is provided on one side of the lower spring seat (406), a sealing ring (408) is provided on one side of the valve core (407), a valve seat (413) is provided on the inner wall of the valve body (1), a valve stem (409) is provided on one side of the valve seat (413), two pressure gauges (410) are installed on the inner wall of the valve body (1), and a bottom cover (411) is provided on one side of the valve body (1) through a sealing gasket (412).

7. A pressure regulating valve according to claim 6, characterized in that: A hollow capsule (4051) is fixedly connected inside the diaphragm (405). The top of the hollow capsule (4051) has several circular grooves (4052). A repair agent capsule (4054) is fixedly connected to the top of the inner wall of the hollow capsule (4051). Several nozzles (4053) are fixedly connected to the top of the repair agent capsule (4054). The outer walls of the nozzles (4053) are fixedly connected to the inner walls of the circular grooves (4052). A pointed pressure ring (4055) is fixedly connected to the bottom of the repair agent capsule (4054). Several short rods (4056) are fixedly connected to the bottom of the pointed pressure ring (4055). A push ring (4057) is fixedly connected to the bottom of the inner wall of the hollow capsule (4051).

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