Self-operated pressure regulating valve

Abstract

This invention relates to the field of regulating valve technology, specifically to a self-operated pressure regulating valve, comprising a valve body, a pad at the top of the valve body, vertical rods fixedly mounted at both ends of the pad, a pressure shell fixedly mounted between the top ends of the two vertical rods, a pressure assembly at the upper end of the pressure shell, a spring assembly between the pressure assembly and the valve body, an auxiliary block fixedly mounted on the right vertical rod, an observation plate fixedly mounted on the auxiliary block, the observation plate having a groove cavity, an indicator plate mounted at the top of the spring assembly, a pointer fixedly mounted at the top of the indicator plate, scale lines on the observation plate, an adjusting screw mounted on the spring assembly, and a pressure relief assembly located on the right side of the valve body. By observing the scale line pointed to by the pointer, the pressure of the spring assembly can be determined, allowing for quick adjustment of the spring assembly. This also facilitates observation and eliminates concerns about component loss, improving convenience. Furthermore, the valve has a simple and durable structure with low maintenance costs.

Description

Technical Field

[0001] This invention relates to the field of regulating valve technology, and specifically to a self-operated pressure regulating valve. Background Technology

[0002] Self-operated control valves, also known as self-pressurized control valves, are valves that rely on the pressure and temperature of the medium flowing through them as energy to operate automatically. They do not require an external power supply or secondary instruments and are widely used in the transportation of gases and liquids. Common self-operated control valves mainly consist of two parts: the valve body and the actuator. The valve body contains a valve core, and the actuator controls the opening and closing of the valve core through the combined action of fluid pressure and a spring, thereby stabilizing the fluid flow.

[0003] The regulating capacity of a self-operated pressure regulating valve mainly comes from the pressure difference on both sides of the rubber diaphragm. The pressure above the diaphragm comes from the fluid pressure, while the pressure below the diaphragm comes from the spring deformation pressure. However, to adjust the spring pressure, operators usually rely on their sense of touch to rotate the bolt, which results in inaccurate spring pressure values. Furthermore, during prolonged use, the valve core edges wear down, causing gaps between the valve core and the inner wall of the valve body, leading to poor sealing and requiring regular maintenance, thus causing inconvenience in use.

[0004] Therefore, the present invention provides a self-operated pressure regulating valve to solve the above problems. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a self-operated pressure regulating valve, which effectively solves the problems of inaccurate pressure value of the spring adjusted by rotating the bolt manually and the wear of the valve core edge during long-term use, resulting in gaps between the valve core and the inner wall of the valve body and poor sealing effect.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A self-operated pressure regulating valve includes a valve body, a pad at the top of the valve body, vertical rods fixedly mounted at both ends of the pad, a pressure shell fixedly mounted between the top ends of the two vertical rods, a pressure assembly at the upper end of the pressure shell, a spring assembly between the pressure assembly and the valve body, an auxiliary block fixedly mounted on the right vertical rod, an observation plate fixedly mounted on the auxiliary block, a sliding groove cavity formed on the observation plate, an indicator plate mounted at the top of the spring assembly, a pointer fixedly mounted at the top of the indicator plate, scale lines on the observation plate, an adjusting screw mounted on the spring assembly, and a pressure relief assembly on the right side of the valve body.

[0008] Preferably, a top ring is fixedly installed at the top of the valve body, a sealing cylinder is installed on the top ring, the gasket is sleeved on the outside of the sealing cylinder, an internal cavity is opened inside the valve body, an inlet cavity is opened at the left end of the valve body, an outlet cavity is opened at the right end of the valve body, and a sealing component is provided inside the internal cavity.

[0009] Preferably, a left connecting pipe is installed at the left end of the valve body, a right connecting pipe is installed at the right end of the valve body, the pressure assembly includes a lower housing and an upper housing, the lower housing is fixedly installed at the top of the top pressure housing, the upper housing is installed at the top of the lower housing, and a pressure plate is provided inside the lower housing.

[0010] Preferably, the pressure relief assembly includes a pressure relief pipe, a fixing block is fixedly installed at the top end of the right connecting pipe, positioning tubes are fixedly installed at the top end of the fixing block and the upper housing, a pressure relief pipe is connected between the two positioning tubes, a positioning bolt is provided on each positioning tube, and a positioning connecting plate is installed between the pressure relief pipe and the vertical rod on the same side.

[0011] Preferably, the enclosed assembly includes a bottom circular plate, which is slidably installed inside the built-in cavity. A support shaft is fixedly installed at the top center of the bottom circular plate, and a drive disk is sleeved on the support shaft. Multiple arc-shaped plates are evenly slidably installed on the bottom circular plate, and a support rod is connected between each arc-shaped plate and the drive disk. Multiple inner shells are evenly installed at the top of the bottom circular plate, and an inner strip located inside the inner shell is fixedly installed on each arc-shaped plate. A closing circular plate is fixedly installed on the support shaft, and a lifting screw is rotatably installed on the drive disk. A sealing sleeve is sleeved together on the outer sides of the multiple arc-shaped plates.

[0012] Preferably, the spring assembly includes a pressure spring, a sliding push plate is slidably mounted between the two vertical rods, a guide shaft is connected between the pressure plate and the closed circular plate, a positioning block is fixedly mounted on the upper end of the guide shaft, a pressure spring is sleeved on the guide shaft between the positioning block and the sliding push plate, and an indicator plate is fixedly mounted on the sliding push plate.

[0013] Preferably, a lifting block located below the sliding push plate is threaded onto the adjusting screw, a stabilizing plate is fixedly installed on the top of the lifting block, a ball bearing is rotatably installed on the top of the stabilizing plate, and an auxiliary plate located above the ball bearing is sleeved on the adjusting screw.

[0014] Preferably, a storage ring is installed inside the left connecting pipe, a tip tube is fixedly installed at the left end of the storage ring, a filter plate is fixedly installed at the left end of the tip tube, a cross is fixedly installed at the right end of the storage ring, a reciprocating screw is rotatably installed on the cross, a reciprocating ring assembly is threaded onto the reciprocating screw, an insertion plate is fixedly installed at the left end of the reciprocating ring assembly, a stabilizing rod is provided on the insertion plate, and a drive fan is installed at the right end of the reciprocating screw.

[0015] Preferably, the filter plate is provided with water-permeable holes evenly distributed, the reciprocating ring assembly includes a reciprocating ring and a connecting rod, the reciprocating ring is threaded onto a reciprocating screw, and the reciprocating ring is connected to the insert plate by a connecting rod.

[0016] Preferably, the left and right connecting pipes are connected to the valve body by fastening bolts.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. By observing the scale line pointed to by the pointer, the pressure of the spring assembly can be determined, allowing for quick adjustment of the spring assembly. It is also easy to observe and eliminates concerns about losing parts, improving convenience. Furthermore, the structure is simple and durable, with low maintenance costs.

[0019] 2. This regulating valve relies on the force of the medium itself for regulation, without the need for external power or other power sources. It has a simple structure, is easy to maintain, reduces maintenance costs and time, and can work stably in harsh industrial environments, ensuring the normal operation of the production process.

[0020] 3. When wear occurs on the outer surface of the sealing sleeve, the outer wall of the sealing sleeve comes into contact with the inner cavity through the cooperation of the lifting screw, drive disc, support rod, and arc plate, ensuring the sealing and safety of the inner cavity and effectively preventing liquid leakage.

[0021] 4. This regulating valve can filter the liquid, preventing impurities from affecting the use of the device, and can block lumpy particles into the storage ring, which can be cleaned regularly by personnel; since the push rod can freely pass through the outlet hole, the liquid can pass through the filter plate evenly, avoiding local overload or blockage, and ensuring the normal flow of the liquid. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0023] Figure 2 This is a three-dimensional cross-sectional view of the valve body of the present invention;

[0024] Figure 3 This is a schematic diagram showing the installation positions of the pressure spring and guide shaft of the present invention;

[0025] Figure 4 This is a schematic diagram showing the installation position of the tip tube of the present invention;

[0026] Figure 5 This is a schematic cross-sectional view of the storage ring of the present invention;

[0027] Figure 6 This is a schematic diagram of the filter plate structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the stabilizing plate, ball bearings, and auxiliary plate structure of the present invention;

[0029] Figure 8 This is a schematic cross-sectional view of the lower and upper housings of the present invention;

[0030] Figure 9 This is a schematic diagram of the drive disk and arc plate structure of the present invention;

[0031] Figure 10 For the present invention Figure 2 Enlarged diagram of point A in the diagram;

[0032] Figure 11 For the present invention Figure 3 Enlarged diagram of point B in the image;

[0033] Figure 12 For the present invention Figure 9 Enlarged diagram of point C in the diagram;

[0034] Figure 13 This is a schematic diagram of the unfolded structure of the arc-shaped plate of the present invention.

[0035] Markings in the diagram: 1. Valve body; 2. Gasket; 3. Vertical rod; 4. Top pressure shell; 5. Auxiliary block; 6. Observation plate; 7. Slide groove cavity; 8. Indicator plate; 9. Pointer; 10. Scale line; 11. Adjusting screw; 12. Top ring; 13. Sealing cylinder; 15. Internal cavity; 16. Inlet cavity; 17. Discharge cavity; 18. Left connecting pipe; 19. Right connecting pipe; 20. Lower shell; 21. Upper shell; 22. Pressure plate; 23. Pressure relief pipe; 24. Fixing block; 25. Positioning insertion tube; 26. Positioning bolt; 27. Positioning connecting plate; 28. Bottom side circular plate; 29. ​​Support shaft; 30. 31. Drive plate; 32. Arc plate; 33. Support rod; 34. Inner shell; 35. Inner strip; 36. Enclosed circular plate; 37. Lifting screw; 38. Sealing sleeve; 39. Pressure spring; 40. Sliding push plate; 41. Guide shaft; 42. Positioning block; 43. Lifting block; 44. Stabilizing plate; 45. Ball bearing; 46. Auxiliary plate; 47. Storage ring; 48. Tip tube; 49. Filter plate; 50. Cross; 51. Reciprocating screw; 52. Insert rod plate; 53. Stabilizing rod; 54. Drive fan; 55. Water permeable hole; 56. Reciprocating ring; 57. Connecting rod; 58. Fastening bolt. Detailed Implementation

[0036] The following reference Figures 1 to 13 The various embodiments of the present invention will be described in detail. Those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0037] A self-operated pressure regulating valve, such as Figure 1 , Figure 3 , Figure 11 As shown, the device includes a valve body 1, with a pad 2 at the top. Vertical rods 3 are fixedly installed at the left and right ends of the pad 2, pointing upwards. A pressure shell 4 is fixedly installed between the top ends of the two vertical rods 3, providing stability for the two vertical rods 3. A pressure assembly is installed at the upper end of the pressure shell 4, and a spring assembly is installed between the pressure assembly and the valve body 1. Two auxiliary blocks 5 are fixedly installed on the right vertical rod 3, symmetrically arranged vertically. The two auxiliary blocks 5 are in the same direction as the valve body 1. An observation plate 6 is fixedly installed on both ends. The top of the observation plate 6 is fixedly installed on the top pressure shell 4. A vertical sliding groove cavity 7 is opened on the front end of the observation plate 6. An indicator plate 8 is installed on the top of the spring assembly. The indicator plate 8 is slidably installed in the sliding groove cavity 7. A pointer 9 is fixedly installed on the front side of the top of the indicator plate 8. A scale line 10 is provided on the observation plate 6. The scale line 10 is set on both sides of the sliding groove cavity 7. An adjusting screw 11 is provided on the spring assembly. A pressure relief assembly is provided on the right side of the valve body 1. The top of the adjusting screw 11 is fixedly installed on the top pressure shell 4, and the bottom is fixedly installed on the pad 2.

[0038] When the spring assembly needs adjustment, the operator rotates the corresponding component along the adjusting screw 11. The corresponding component moves the spring assembly upward, and the spring assembly slides upward along the slide cavity 7 with the indicator plate 8. The operator can determine the pressure of the spring assembly by observing the scale line 10 pointed to by the pointer 9, which allows for quick adjustment of the spring assembly. This also facilitates observation and eliminates concerns about losing components, improving convenience and ease of operation. Because it uses a pointer display, it does not require a power supply and can still work normally without a power source, further enhancing ease of use. Moreover, the structure is simple and durable, with low maintenance costs.

[0039] like Figure 2 , Figure 3 , Figure 4As shown, a top ring 12 is fixedly installed at the top of the valve body 1, and a sealing cylinder 13 is fixedly installed at the top of the top ring 12 by bolts. A gasket 2 is fixedly sleeved on the outside of the sealing cylinder 13. An internal cavity 15 is provided inside the valve body 1. The internal cavity 15 is vertically connected to the top ring 12 and the sealing cylinder 13. A curved inlet cavity 16 is provided at the left end of the valve body 1, and a discharge cavity 17 is provided at the right end of the valve body 1. The inlet cavity 16 and the discharge cavity 17 are connected to the internal cavity 15. The discharge cavity 17 is located above the inlet cavity 16. A sealing component is provided inside the internal cavity 15.

[0040] like Figure 1 , Figure 8 As shown, a left connecting pipe 18 is fixedly installed on the left end of the valve body 1 by fastening bolt 57. The left connecting pipe 18 is connected to the inlet chamber 16. A right connecting pipe 19 is fixedly installed on the right end of the valve body 1 by fastening bolt 57. The right connecting pipe 19 is connected to the outlet chamber 17. The pressure assembly includes a lower housing 20 and an upper housing 21. The lower housing 20 is fixedly installed on the top of the top pressure shell 4. The upper housing 21 is fixedly installed on the top of the lower housing 20 by bolts. A closed space is formed between the lower housing 20 and the upper housing 21. A pressure plate 22 is provided inside the lower housing 20. The pressure plate 22 can only slide up and down inside the lower housing 20 and the upper housing 21.

[0041] like Figure 1 As shown, the pressure relief assembly includes a pressure relief pipe 23. A fixing block 24 is fixedly installed at the top of the right connecting pipe 19. A positioning tube 25 is fixedly installed on the fixing block 24 and is connected to the right connecting pipe 19. A positioning tube 25 is fixedly installed at the top of the upper housing 21 and is connected to the upper housing 21. A pressure relief pipe 23 is installed between the two positioning tubes 25. A positioning bolt 26 is threaded on each positioning tube 25. Sliding sleeves are installed at both ends of the pressure relief pipe 23. The sliding sleeves are placed inside the positioning tubes 25 to prevent liquid overflow. The two positioning bolts 26 can tightly fix the two ends of the pressure relief pipe 23. Two positioning connecting plates 27 are installed between the pressure relief pipe 23 and the vertical rod 3 on the same side to improve the stability of the pressure relief pipe 23. Under normal conditions, the sealing assembly seals the internal cavity 15.

[0042] Personnel fix the left end of the left connecting pipe 18 to the outlet of one of the pipes and fix the right end of the right connecting pipe 19 to the inlet of another pipe. When the water source is turned on, the liquid flows into the inlet chamber 16 through the left connecting pipe 18. Then, the liquid thrust pushes the sealing component upward along the inner cavity 15, opening the inner cavity 15. The spring component continues to compress. When the sealing component opens the outlet chamber 17 port, the liquid flows quickly into the inside of the right connecting pipe 19 through the outlet chamber 17. The liquid continues to enter the pipe on the right side. At this time, the liquid enters the upper housing 21 through the pressure relief pipe 23 and enters the space above the pressure plate 22.

[0043] When the pressure in the liquid in the right connecting pipe 19 increases, the liquid drives the pressure plate 22 to slide downward. The pressure plate 22 drives the spring assembly to compress and pushes the sealing assembly downward. The sealing assembly blocks the inlet end of the discharge chamber 17, reducing the opening degree of the discharge chamber 17 until the pressure in the right connecting pipe 19 decreases to the set value position. It is regulated by the force of its own medium, without the need for external power supply or other power source support. It has a simple structure, is easy to maintain, reduces maintenance costs and time, and can work stably in harsh industrial environments to ensure the normal operation of the production process.

[0044] In summary, self-operated control valves have advantages such as requiring no external energy, high degree of automation, simple maintenance, high reliability, energy saving and environmental protection, and wide temperature adaptability, and are widely used in various industrial production processes.

[0045] like Figure 2 , Figure 9 , Figure 10 , Figure 12 , Figure 13As shown, the enclosed assembly includes a bottom circular plate 28, which is slidably mounted inside the built-in cavity 15. A support shaft 29 is fixedly mounted at the top center of the bottom circular plate 28. A drive disk 30 that slides vertically is sleeved on the support shaft 29. A closing circular plate 35 is fixedly mounted at the top of the support shaft 29. The closing circular plate 35 and the bottom circular plate 28 have the same outer diameter. Multiple arc-shaped plates 31 are evenly slidably mounted between the top wall of the bottom circular plate 28 and the bottom wall of the closing circular plate 35. When the multiple arc-shaped plates 31 are closed, they form a cylindrical structure. A support rod 32 is rotatably mounted on the inner end of each arc-shaped plate 31. The other end of each support rod 32 is rotatably mounted on the outer end of the drive disk 30. The arc-shaped plates 31 can be slidably mounted on the bottom circular plate 28. The plate 28 and the closed circular plate 35 slide freely between each other. Multiple inner shells 33 are evenly fixedly installed on the top of the bottom circular plate 28. Each inner shell 33 is correspondingly set with the adjacent arc plate 31. An inner strip 34 is fixedly installed on the lower inner side of each arc plate 31. The inner strip 34 is slidably installed in the inner shell 33. A lifting screw 36 is rotatably installed on the bottom of the drive disk 30. The lifting screw 36 is threaded on the closed circular plate 35. The pad 2 has a positioning hole corresponding to the upper and lower parts of the lifting screw 36. The lifting screw 36 can rotate freely in the positioning hole and the inner cavity 15. The lifting screw 36 passes through the inner cavity 15 and the positioning hole and goes up to the top of the pad 2, which makes it convenient for personnel to rotate the lifting screw 36 at any time.

[0046] The sealing sleeve 37 is made of elastic rubber. The interior of the sealing sleeve 37 is hollow with an open top. The inner diameter of the upper circular hole of the sealing sleeve 37 is smaller than the outer diameter of the closed circular plate 35. The sealing sleeve 37 is fitted onto the outer sides of multiple arc-shaped plates 31, the closed circular plate 35, and the bottom circular plate 28. (The installation method of the sealing sleeve 37 is as follows...) Figure 9 As shown), the bottom end of the bottom circular plate 28 is in a closed state. Since the sealing sleeve 37 is elastic, it can press the two ends of the closed circular plate 35 and the bottom circular plate 28 tightly. Under normal conditions, the sealing sleeve 37 seals the inlet cavity 16, the outlet cavity 17, and the inner cavity 15.

[0047] When the water source is turned on, the liquid flows into the inlet chamber 16 through the left connecting pipe 18. Then, the liquid pushes the bottom circular plate 28, the sealing sleeve 37, and the closing circular plate 35 upward along the inner cavity 15. The spring assembly is continuously compressed, and the closing assembly gradually opens the inlet of the inlet chamber 16 and the outlet chamber 17. The liquid flows quickly into the inside of the right connecting pipe 19 through the outlet chamber 17. Finally, the liquid enters the pipe on the right side. Due to the cooperation between the sealing sleeve 37 and the inner cavity 15, the sealing performance is improved.

[0048] When wear occurs on the outer surface of the sealing sleeve 37, a gap exists between the outer wall of the sealing sleeve 37 and the inner wall of the internal cavity 15, which can lead to a decrease in sealing performance and even leakage. When the operator rotates the lifting screw 36, it pushes the drive plate 30 downward. The drive plate 30 pushes the corresponding arc plate 31 outward through multiple support rods 32. Because the sealing sleeve 37 is elastic, the multiple arc plates 31 expand outward simultaneously, gradually opening the sealing sleeve 37. The outer diameter of the sealing sleeve 37 gradually increases until the outer wall of the sealing sleeve 37 contacts the internal cavity 15. Because the lifting screw 36 is threadedly engaged with the closed circular plate 35, the sealing sleeve 37 is always in contact with the internal cavity 15, which also maintains the stability of the multiple arc plates 31. Furthermore, the device can be adjusted according to the degree of wear of the sealing sleeve 37 to ensure the sealing and safety of the internal cavity 15 and effectively prevent liquid leakage.

[0049] like Figure 1 , Figure 3 As shown, the spring assembly includes a pressure spring 38, and a sliding push plate 39 that slides up and down is sleeved between two vertical rods 3. The sliding push plate 39 is sleeved on the adjusting screw 11 and can slide freely up and down along the adjusting screw 11 and the two vertical rods 3. The sliding push plate 39 is positioned above the sealing cylinder 13 and overlaps the top surface of the sealing cylinder 13. Cylindrical holes are respectively opened in the middle of the bottom end of the top pressure shell 4 and the middle of the bottom end of the lower shell 20. The upper end of the guide shaft 40 is installed in the two cylindrical holes and is connected to the pressure plate 2. 2. The bottom end is fixedly connected. A circular shaft hole is opened in the middle of the sliding push plate 39. The lower end of the guide shaft 40 passes through the circular shaft hole, the sealing cylinder 13, and the top ring 12 and is finally fixedly connected to the top of the closed circular plate 35. A positioning block 41 is fixedly installed on the upper end of the guide shaft 40. The positioning block 41 is located below the top pressure shell 4. A pressure spring 38 is sleeved on the guide shaft 40. One end of the pressure spring 38 is fixedly connected to the positioning block 41, and the other end is fixedly connected to the sliding push plate 39. The bottom end of the indicator plate 8 is fixedly installed on the sliding push plate 39.

[0050] Personnel fix the left end of the left connecting pipe 18 to the outlet of one of the pipes and fix the right end of the right connecting pipe 19 to the inlet of another pipe. When the water source is turned on, the liquid flows into the inlet chamber 16 through the left connecting pipe 18. Then the liquid pushes the sealing component upward along the inner chamber 15. The spring component is continuously compressed. When the sealing component opens the inlet of the discharge chamber 17, the liquid flows quickly into the inside of the right connecting pipe 19 through the discharge chamber 17. Finally, the liquid enters the pipe on the right side. At the same time, the liquid enters the upper housing 21 through the pressure relief pipe 23 and enters the space above the pressure plate 22.

[0051] As the liquid pressure in the right connecting pipe 19 gradually increases, the liquid drives the pressure plate 22 to slide downward. The pressure plate 22 drives the spring assembly to compress and pushes the sealing assembly downward. The sealing assembly blocks the inlet end of the discharge chamber 17, reducing the opening degree of the discharge chamber 17. This reduces the pressure of the liquid in the right connecting pipe 19, preventing excessive pressure in the pipeline and enhancing the service life of the pipeline.

[0052] Self-operated regulating valves rely on the power of the medium itself for regulation, without the need for external power or other power sources. They also have a simple structure, are easy to maintain, reduce maintenance costs and time, and can work stably in harsh industrial environments to ensure the normal operation of the production process.

[0053] In summary, self-operated control valves have advantages such as requiring no external energy, high degree of automation, simple maintenance, high reliability, energy saving and environmental protection, and wide temperature adaptability, and are widely used in various industrial production processes.

[0054] like Figure 3 , Figure 7 As shown, a lifting block 42 located below the sliding push plate 39 is coaxially threaded on the adjusting screw 11. A stabilizing plate 43 is coaxially fixedly installed on the top of the lifting block 42. The stabilizing plate 43 is sleeved on the adjusting screw 11 and can slide freely up and down along the adjusting screw 11. A plurality of balls 44 are rotatably connected to the top of the stabilizing plate 43. The balls 44 protrude a portion. An auxiliary plate 45 located above the balls 44 is sleeved on the adjusting screw 11. The auxiliary plate 45 can slide up and down along the adjusting screw 11, and the top surface of the auxiliary plate 45 contacts the sliding push plate 39, while the lower end contacts the plurality of balls 44.

[0055] When the pressure of the pressure spring 38 needs to be adjusted, the operator rotates the lifting block 42 to move upward along the adjusting screw 11. Multiple balls 44 roll along the bottom surface of the auxiliary plate 45. The lifting block 42 pushes the sliding push plate 39 upward through the stabilizing plate 43, the balls 44, and the auxiliary plate 45. The indicator plate 8 slides upward along the slide groove cavity 7. The sliding push plate 39 pushes the pressure spring 38 to gradually compress. The operator can determine the pressure coefficient of the pressure spring 38 by observing the scale line 10 pointed to by the pointer 9, which is convenient for the operator to observe. Since the lifting block 42 and the lifting screw 36 are threaded together, the stability of the sliding push plate 39 is improved, and the operator can operate it more easily. The balls 44 roll along the auxiliary plate 45, which improves the ease of operation of the lifting block 42 and reduces the operator's physical exertion.

[0056] like Figure 4 , Figure 5 , Figure 6As shown, a storage ring 46 is fixedly installed inside the left connecting pipe 18. The storage ring 46 has multiple external filter holes. A tip tube 47 is fixedly installed at the left end of the storage ring 46. The tip tube 47 and the storage ring 46 are connected from left to right. A filter plate 48 is fixedly installed at the left end of the tip tube 47. A cross 49 is fixedly installed at the right end of the storage ring 46. A reciprocating screw 50 is rotatably installed on the cross 49. The reciprocating screw 50 is located inside the tip tube 47. A reciprocating ring assembly is threaded on the reciprocating screw 50. An insert plate 51 is fixedly installed at the left end of the reciprocating ring assembly. Multiple water outlet holes are evenly opened on the insert plate 51. The inner diameter of the water outlet holes is larger than the inner diameter of the external filter holes. The edge of the insert plate 51 is far away from the inner wall of the tip tube 47 and does not contact it.

[0057] A stabilizing rod 52 extending to the right is fixedly installed on the insert plate 51. A limiting hole is provided on the cross 49. The stabilizing rod 52 is slidably installed in the limiting hole. A drive fan 53 is coaxially fixedly installed on the right end of the reciprocating screw 50. The drive fan 53 is an impeller structure or other components that can be driven by water flow in the prior art. The drive fan 53 is located on the right side of the cross 49. The water flow can drive the drive fan 53 to rotate rapidly.

[0058] like Figure 5 , Figure 6 As shown, the filter plate 48 is evenly provided with multiple water permeable holes 54, and multiple top rods are evenly fixedly installed on the left end of the insert plate 51. The top rods are set corresponding to the water permeable holes 54. The inner diameter of the water permeable hole 54 is twice the outer diameter of the top rod to facilitate the normal flow of water. The reciprocating ring assembly includes a reciprocating ring 55 and connecting rods 56. The reciprocating ring 55 is threadedly installed on the reciprocating screw 50. Four connecting rods 56 are fixedly installed on the reciprocating ring 55. The other end of each connecting rod 56 is fixedly installed on the insert plate 51. The insert plate 51 is located between the reciprocating screw 50 and the filter plate 48.

[0059] When the water source is turned on, the liquid flows into the inlet chamber 16 through the left connecting pipe 18. Then, the liquid thrust pushes the sealing component upward along the inner chamber 15, opening the inner chamber 15. The spring component continues to compress. When the sealing component opens the outlet chamber 17 port, the liquid flows quickly into the inside of the right connecting pipe 19 through the outlet chamber 17. The liquid continues to enter the pipe on the right side.

[0060] Simultaneously, the liquid drives the drive fan 53 to rotate rapidly through the water permeable hole 54, the water outlet hole, the inner cavity of the tip tube 47, and the storage ring 46. The drive fan 53 drives the reciprocating screw 50 to rotate, and the reciprocating ring 55 moves the connecting rod 56 and the insertion plate 51 to the left. The stabilizing rod 52 slides along the limiting hole, and each push rod will be inserted into the corresponding water outlet hole. Since the inner diameter of the water permeable hole 54 is twice the outer diameter of the push rod, it will not affect the normal flow of water. It can also push open the blocky particles blocked inside the water outlet hole. Then the water flow impacts the blocky particles into the storage ring 46. Since the inner diameter of the water outlet hole is larger than the inner diameter of the outer filter hole, the blocky particles will be blocked into the storage ring 46 and will not block the outer filter hole.

[0061] As the drive fan 53 rotates rapidly, the reciprocating ring 55 moves to the right along with the connecting rod 56 and the insert plate 51. The stabilizing rod 52 slides in the opposite direction along the limiting hole, and each push rod is pulled out from the corresponding water outlet hole. Through the continuous rotation of the reciprocating screw 50, impurities can be stored in the storage ring 46 while filtering the liquid. Personnel can clean it regularly to improve the filtration efficiency, so that the liquid can pass through the filter plate 48 evenly, avoid local overload or blockage, and ensure the normal flow of the liquid.

[0062] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0063] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed installation, detachable connection, or integral connection; they can refer to mechanical connection or electrical connection; they can refer to direct connection or indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0064] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A self-operated pressure regulating valve, comprising a valve body (1), characterized in that, A pad (2) is provided at the top of the valve body (1). Vertical rods (3) are fixedly installed at both ends of the pad (2). A pressure shell (4) is fixedly installed between the top ends of the two vertical rods (3). A pressure assembly is provided at the upper end of the pressure shell (4). A spring assembly is provided between the pressure assembly and the valve body (1). An auxiliary block (5) is fixedly installed on the vertical rod (3) on the right side. An observation plate (6) is fixedly installed on the auxiliary block (5). A sliding groove cavity (7) is opened on the observation plate (6). An indicator plate (8) is installed at the top of the spring assembly. A pointer (9) is fixedly installed at the top of the indicator plate (8). A scale line (10) is provided on the observation plate (6). An adjusting screw (11) is provided on the spring assembly. A pressure relief assembly is provided on the right side of the valve body (1). A left connecting pipe (18) is installed at the left end of the valve body (1), and a right connecting pipe (19) is installed at the right end of the valve body (1). The pressure assembly includes a lower housing (20) and an upper housing (21). The lower housing (20) is fixedly installed at the top of the top pressure shell (4), and the upper housing (21) is installed at the top of the lower housing (20). A pressure plate (22) is provided inside the lower housing (20). A storage ring (46) is installed inside the left connecting pipe (18). A tip tube (47) is fixedly installed at the left end of the storage ring (46). A filter plate (48) is fixedly installed at the left end of the tip tube (47). A cross (49) is fixedly installed at the right end of the storage ring (46). A reciprocating screw (50) is rotatably installed on the cross (49). A reciprocating ring assembly is threaded on the reciprocating screw (50). A plug plate (51) is fixedly installed at the left end of the reciprocating ring assembly. A stabilizing rod (52) is provided on the plug plate (51). A drive fan (53) is installed at the right end of the reciprocating screw (50). The filter plate (48) is provided with water-permeable holes (54) evenly. The reciprocating ring assembly includes a reciprocating ring (55) and a connecting rod (56). The reciprocating ring (55) is threaded onto the reciprocating screw (50). The reciprocating ring (55) is connected to the insert plate (51) by the connecting rod (56).

2. The self-operated pressure regulating valve according to claim 1, characterized in that, A top ring (12) is fixedly installed at the top of the valve body (1), and a sealing cylinder (13) is installed on the top ring (12). The pad (2) is sleeved on the outside of the sealing cylinder (13). An internal cavity (15) is provided inside the valve body (1). An inlet cavity (16) is provided at the left end of the valve body (1), and an outlet cavity (17) is provided at the right end of the valve body (1). A sealing component is provided inside the internal cavity (15).

3. The self-operated pressure regulating valve according to claim 1, characterized in that, The pressure relief assembly includes a pressure relief pipe (23), a fixing block (24) is fixedly installed at the top end of the right connecting pipe (19), a positioning tube (25) is fixedly installed at the top end of the fixing block (24) and the upper housing (21), a pressure relief pipe (23) is connected between the two positioning tubes (25), a positioning bolt (26) is provided on each positioning tube (25), and a positioning connecting plate (27) is installed between the pressure relief pipe (23) and the vertical rod (3) on the same side.

4. A self-operated pressure regulating valve according to claim 2, characterized in that, The enclosed assembly includes a bottom circular plate (28), which is slidably installed inside the built-in cavity (15). A support shaft (29) is fixedly installed at the top center of the bottom circular plate (28). A drive disk (30) is sleeved on the support shaft (29). Multiple arc-shaped plates (31) are evenly slidably installed on the bottom circular plate (28). A support rod (32) is connected between each arc-shaped plate (31) and the drive disk (30). Multiple inner shells (33) are evenly installed at the top of the bottom circular plate (28). An inner strip (34) located inside the inner shell (33) is fixedly installed on each arc-shaped plate (31). A closed circular plate (35) is fixedly installed on the support shaft (29). A lifting screw (36) is rotatably installed on the drive disk (30). A sealing sleeve (37) is sleeved together on the outer sides of the multiple arc-shaped plates (31).

5. A self-operated pressure regulating valve according to claim 4, characterized in that, The spring assembly includes a pressure spring (38), a sliding push plate (39) is slidably mounted between the two vertical rods (3), a guide shaft (40) is connected between the pressure plate (22) and the closed circular plate (35), a positioning block (41) is fixedly mounted on the upper end of the guide shaft (40), a pressure spring (38) is sleeved on the guide shaft (40) between the positioning block (41) and the sliding push plate (39), and an indicator plate (8) is fixedly mounted on the sliding push plate (39).

6. A self-operated pressure regulating valve according to claim 5, characterized in that, The adjusting screw (11) is threaded with a lifting block (42) located below the sliding push plate (39). A stabilizing plate (43) is fixedly installed on the top of the lifting block (42). A ball bearing (44) is rotatably installed on the top of the stabilizing plate (43). An auxiliary plate (45) is sleeved on the adjusting screw (11) located above the ball bearing (44).

7. A self-operated pressure regulating valve according to claim 1, characterized in that, The left connecting pipe (18) and the right connecting pipe (19) are connected to the valve body (1) by fastening bolts (57).

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