Self-operated pressure regulating valve

Abstract

The invention relates to the technical field of regulating valves, in particular to a self-operated pressure regulating valve which comprises a valve body, a base plate is arranged at the top end of the valve body, vertical straight rods are fixedly installed at the two ends of the base plate respectively, a jacking shell is fixedly installed between the top ends of the two vertical straight rods, and a pressure assembly is arranged at the upper end of the jacking shell. A spring assembly is arranged between the pressure assembly and the valve body, an auxiliary block is fixedly installed on the vertical straight rod located on the right side, an observation plate is fixedly installed on the auxiliary block, a sliding groove cavity is formed in the observation plate, an indicator plate is installed at the top end of the spring assembly, a pointer is fixedly installed at the top end of the indicator plate, and scale marks are arranged on the observation plate. An adjusting screw is arranged on the spring assembly, and a pressure relief assembly is arranged on the right side of the valve body. The pressure of the spring assembly can be obtained by observing the scale line pointed by the pointer, the spring assembly can be rapidly adjusted, observation is facilitated, part loss does not need to be worried about, convenience is improved, the structure is simple and durable, and the maintenance cost is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of regulating valve, in particular to a self-operated pressure regulating valve. BACKGROUND

[0002] The self-operated regulating valve is also called self-operated control valve, which is a kind of regulating valve driven by the pressure and temperature of the medium flowing through the valve, without external power supply and secondary instrument, and has a wide application in the conveying process of gas, liquid and the like. The common self-operated regulating valve is mainly composed of a valve body structure and an execution structure, wherein the valve body structure is provided with a valve core, and the execution mechanism controls the opening and closing degree of the valve core by the combined action of the pressure of the fluid and the spring, so as to control the flow stability of the fluid.

[0003] The regulating capacity of the self-operated pressure regulating valve mainly comes from the pressure difference on both sides of the rubber diaphragm, the pressure above the rubber diaphragm comes from the pressure of the fluid, and the pressure below the rubber diaphragm comes from the pressure of the spring deformation. However, in order to adjust the pressure of the spring, the staff usually rotates the bolt according to the feeling to adjust, which causes the pressure value of the spring to be not accurate enough. Moreover, the edge of the valve core will be worn during long-term use, resulting in a gap between the valve core and the inner wall of the valve body, and the sealing effect is not good, so that the personnel need to be regularly maintained, causing inconvenience in use.

[0004] Therefore, the present application provides a self-operated pressure regulating valve to solve the above problems. SUMMARY

[0005] In view of the above problems, the present application provides a self-operated pressure regulating valve to overcome the defects of the prior art, which effectively solves the problems that the pressure value of the spring is not accurate enough when the staff rotates the bolt to adjust, and the edge of the valve core is worn during long-term use, resulting in a gap between the valve core and the inner wall of the valve body, and the sealing effect is not good.

[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: A self-operated pressure regulating valve, comprising a valve body, a gasket plate is arranged at the top end of the valve body, two vertical straight rods are fixedly installed at both ends of the gasket plate, a top pressure shell is fixedly installed between the top ends of the two vertical straight rods, a pressure assembly is arranged at the upper end of the top pressure shell, a spring assembly is arranged between the pressure assembly and the valve body, an auxiliary block is fixedly installed on the vertical straight rod on the right side, an observation plate is fixedly installed on the auxiliary block, a sliding groove cavity is formed in the observation plate, an indicating plate is installed at the top end of the spring assembly, a pointer is fixedly installed at the top end of the indicating plate, a scale line is arranged on the observation plate, an adjusting screw rod is arranged on the spring assembly, and a pressure relief assembly is arranged on the right side of the valve body.

[0007] Preferably, the top end of the valve body is fixedly provided with a top end ring, the top end ring is provided with a sealing cylinder, the gusset plate is sleeved outside the sealing cylinder, the valve body is internally provided with an internal cavity, the left end of the valve body is provided with an inlet cavity, the right end of the valve body is provided with an outlet cavity, and the internal cavity is internally provided with a sealing assembly.

[0008] Preferably, the left end of the valve body is provided with a left connecting pipe, the right end of the valve body is provided with a right connecting pipe, the pressure assembly comprises a lower shell and an upper shell, the top end of the top pressure shell is fixedly provided with the lower shell, the top end of the lower shell is provided with the upper shell, and the lower shell is internally provided with a pressure sheet.

[0009] Preferably, the pressure relief assembly comprises a pressure relief pipe, the top end of the right connecting pipe is fixedly provided with a fixed block, the top ends of the fixed block and the upper shell are fixedly provided with positioning insertion pipes, respectively, a pressure relief pipe is connected between the two positioning insertion pipes, positioning bolts are arranged on the positioning insertion pipes, and a positioning connecting plate is arranged between the pressure relief pipe and the vertical straight rod on the same side.

[0010] Preferably, the sealing assembly comprises a bottom circular plate, the bottom circular plate is slidably arranged in the internal cavity, the top end of the bottom circular plate is fixedly provided with a support shaft, the support shaft is sleeved with a driving disc, a plurality of arc-shaped plates are slidably arranged on the bottom circular plate, a support rod is connected between each arc-shaped plate and the driving disc, a plurality of internal shells are uniformly arranged on the top end of the bottom circular plate, an internal strip is fixedly arranged in each internal shell on each arc-shaped plate, a sealing sleeve is commonly sleeved between the outer sides of the plurality of arc-shaped plates, and the support shaft is fixedly provided with a sealing circular plate.

[0011] Preferably, the spring assembly comprises a pressure spring, a sliding push plate is slidably arranged between the two vertical straight rods, a guide shaft is connected between the pressure sheet and the sealing circular plate, the upper end of the guide shaft is fixedly provided with a positioning block, the pressure spring is sleeved between the positioning block and the sliding push plate on the guide shaft, and the indicating plate is fixedly arranged on the sliding push plate.

[0012] Preferably, the adjusting screw is threadedly provided with a lifting block below the sliding push plate, the top end of the lifting block is fixedly provided with a stabilizing plate, the top end of the stabilizing plate is rotatably provided with a ball, and the adjusting screw is sleeved with an auxiliary plate above the ball.

[0013] Preferably, an internal storage ring is arranged in the left connecting pipe, a pointed pipe is fixedly arranged at the left end of the storage ring, a filter plate is fixedly arranged at the left end of the pointed pipe, a cross is fixedly arranged at the right end of the storage ring, a reciprocating screw rod is rotatably arranged on the cross, a reciprocating ring assembly is threadedly arranged on the reciprocating screw rod, an insertion rod plate is fixedly arranged at the left end of the reciprocating ring assembly, a stabilizing rod is arranged on the insertion rod plate, and a driving fan is arranged at the right end of the reciprocating screw rod.

[0014] Preferably, water-permeable holes are uniformly arranged in the filter plate, the reciprocating ring assembly comprises a reciprocating ring and a connecting rod, the reciprocating ring is threadedly arranged on the reciprocating screw rod, and the connecting rod is arranged between the reciprocating ring and the insertion rod plate.

[0015] Preferably, the left connecting pipe and the right connecting pipe are connected with the valve body through fastening bolts.

[0016] Compared with the prior art, the present application has the following beneficial effects: 1. The pressure of the spring assembly can be obtained by observing the scale line pointed by the pointer, the spring assembly can be quickly adjusted, observation is facilitated, and the loss of components is not needed to worry about, convenience is improved, the structure is simple, durability is good, and maintenance cost is low.

[0017] 2. The adjusting valve is adjusted by the force of the medium itself, does not need external power supply or other power source support, has simple structure, is convenient to maintain, reduces maintenance cost and time, can stably work in a harsh industrial environment, and ensures the normal operation of the production process.

[0018] 3. When the outer side of the sealing sleeve is worn, the outer wall of the sealing sleeve is contacted with the built-in cavity through the cooperation between the lifting screw rod, the driving disc, the supporting rod and the arc-shaped plate, the sealing property and safety of the built-in cavity are ensured, and liquid leakage is effectively prevented.

[0019] 4. The adjusting valve can filter liquid, avoids that impurities affect the use of the device, and can block block-shaped particles into the storage ring, which is cleaned by personnel regularly; since the jacks can be freely inserted into the water outlet holes, liquid can uniformly pass through the filter plate, local overload or blockage is avoided, and the normal flow of liquid is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional state of the present application; Figure 2 It is a sectional view of the valve body of the present application; Figure 3 It is a schematic diagram of the installation position of the pressure spring and the guide shaft of the present application; Figure 4 It is a schematic diagram of the installation position of the pointed pipe of the present application; Figure 5 This is a schematic cross-sectional view of the storage ring of the present invention; Figure 6 This is a schematic diagram of the filter plate structure of the present invention; Figure 7 This is a schematic diagram of the stabilizing plate, ball bearings, and auxiliary plate structure of the present invention; Figure 8 This is a schematic cross-sectional view of the lower and upper housings of the present invention; Figure 9 This is a schematic diagram of the drive disk and arc plate structure of the present invention; Figure 10 For the present invention Figure 2 Enlarged diagram of point A in the diagram; Figure 11 For the present invention Figure 3 Enlarged diagram of point B in the image; Figure 12 For the present invention Figure 9 Enlarged diagram of point C in the diagram; Figure 13 This is a schematic diagram of the unfolded structure of the arc-shaped plate of the present invention.

[0021] 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

[0022] 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.

[0023] A self-operated pressure regulating valve, such asFigure 1 、 Figure 3 、 Figure 11 As shown in the figure, it comprises a valve body 1, the top end of the valve body 1 is provided with a pad plate 2, the left and right ends of the pad plate 2 are respectively fixedly installed with vertical straight rods 3, the two vertical straight rods 3 are upwardly arranged, the top ends of the two vertical straight rods 3 are jointly fixedly installed with a top pressing shell 4, the top pressing shell 4 provides stability for the two vertical straight rods 3, the upper end of the top pressing shell 4 is provided with a pressure assembly, the pressure assembly is provided between the valve body 1 and the spring assembly, two auxiliary blocks 5 are fixedly installed on the vertical straight rod 3 located on the right side, the two auxiliary blocks 5 are symmetrically arranged upward and downward, the two auxiliary blocks 5 are in the same direction as the valve body 1, the other end of the two auxiliary blocks 5 is jointly fixedly installed with an observation plate 6, the top end of the observation plate 6 is fixedly installed on the top pressing shell 4, a vertical sliding groove cavity 7 is formed in the front end of the observation plate 6, the top end of the spring assembly is installed with an indicating plate 8, the indicating plate 8 is slidingly installed in the sliding groove cavity 7 upward and downward, the top end of the indicating plate 8 is fixedly installed with a pointer 9 on the front side, a scale line 10 is arranged on the observation plate 6, the scale line 10 is arranged on both sides of the sliding groove cavity 7, an adjusting screw 11 is arranged on the spring assembly, a pressure relief assembly is arranged on the right side of the valve body 1, the top end of the adjusting screw 11 is fixedly installed on the top pressing shell 4, and the bottom end is fixedly installed on the pad plate 2. When the spring assembly needs to be adjusted, the personnel rotates the corresponding part along the adjusting screw 11, the corresponding part moves upward with the spring assembly, the spring assembly moves upward along the sliding groove cavity 7 with the indicating plate 8, and the personnel can obtain the pressure of the spring assembly by observing the scale line 10 pointed by the pointer 9, so that the spring assembly can be quickly adjusted, observation is facilitated and the loss of the part is not worried about, the convenience is improved, the operation of the personnel is facilitated, since the pointer is adopted for display, power supply is not needed, so normal work can be carried out in the case that there is no power supply, the use convenience is improved, the structure is simple, durable and low in maintenance cost.

[0024] As shown in the figure, Figure 2 、 Figure 3 、 Figure 4 The top end of the valve body 1 is fixedly installed with a top end ring 12, the top end of the top end ring 12 is fixedly installed with a sealing cylinder 13 through bolts, the pad plate 2 is fixedly sleeved on the outside of the sealing cylinder 13, an internal cavity 15 is formed in the valve body 1, the internal cavity 15 is arranged in a penetrating manner upward and downward with the top end ring 12 and the sealing cylinder 13, a curved entering cavity 16 is formed in the left end of the valve body 1, a discharging cavity 17 is formed in the right end of the valve body 1, the entering cavity 16 and the discharging cavity 17 are arranged in a penetrating manner with the internal cavity 15, the discharging cavity 17 is arranged above the entering cavity 16, and the internal cavity 15 is provided with a sealing assembly.

[0025] As shown in the figure, Figure 1 、 Figure 8As shown, the left end of the valve body 1 is fixedly installed with the left connecting pipe 18 through the fastening bolt 57, the left connecting pipe 18 is arranged in communication with the inlet chamber 16, the right end of the valve body 1 is fixedly installed with the right connecting pipe 19 through the fastening bolt 57, the right connecting pipe 19 is arranged in communication with the outlet chamber 17, the pressure assembly comprises a lower shell 20 and an upper shell 21, the top end of the top pressing shell 4 is fixedly installed with the lower shell 20, the top end of the lower shell 20 is fixedly installed with the upper shell 21 through the bolt, a closed space is formed between the lower shell 20 and the upper shell 21, the inside of the lower shell 20 is provided with the pressure sheet 22, the pressure sheet 22 can only slide up and down in the inside of the lower shell 20 and the upper shell 21.

[0026] As shown, Figure 1 As shown, the pressure relief assembly comprises a pressure relief pipe 23, the top end of the right connecting pipe 19 is fixedly installed with the fixed block 24, the fixed block 24 is fixedly installed with the positioning insert pipe 25, the positioning insert pipe 25 is arranged in communication with the right connecting pipe 19, the top end of the upper shell 21 is fixedly installed with the positioning insert pipe 25, the positioning insert pipe 25 is arranged in communication with the upper shell 21, the pressure relief pipe 23 is installed between the two positioning insert pipes 25, the positioning bolt 26 is threadedly installed on each positioning insert pipe 25, the two ends of the pressure relief pipe 23 are respectively installed with sliding sleeves, the sliding sleeves are arranged in the positioning insert pipe 25 to avoid liquid overflow, the two positioning bolts 26 can tightly position the two ends of the pressure relief pipe 23, the pressure relief pipe 23 is installed with the two positioning connecting plates 27 between the vertical straight rods 3 on the same side, the stability of the pressure relief pipe 23 is improved; under normal conditions, the closed assembly blocks the built-in chamber 15; The personnel fix the left end of the left connecting pipe 18 on the water outlet end of one of the pipelines, fix the right end of the right connecting pipe 19 on the water inlet end of the other pipeline, open the water source, the liquid flows into the inlet chamber 16 through the left connecting pipe 18, then the liquid pushing force pushes the closed assembly to move upwards along the built-in chamber 15 to open the built-in chamber 15, the spring assembly is continuously compressed, when the closed assembly opens the port of the outlet chamber 17, the liquid quickly flows into the inside of the right connecting pipe 19 through the outlet chamber 17, the liquid continuously enters the pipeline on the right side, at this time, the liquid enters the upper shell 21 through the pressure relief pipe 23, and the liquid enters the space above the pressure sheet 22; When the pressure in the liquid in the right connecting pipe 19 increases, the liquid drives the pressure sheet 22 to slide downwards, the pressure sheet 22 drives the spring assembly to compress, and pushes the closed assembly to slide downwards, the closed assembly blocks the inlet end of the outlet chamber 17, so that the opening degree of the outlet chamber 17 is reduced, until the pressure in the right connecting pipe 19 is reduced to the set value position, the adjustment is relied on the force of the medium itself, without the support of external power source or other power source, and the structure is simple, convenient to maintain, reduces the maintenance cost and time, and can also work stably in a harsh industrial environment to ensure the normal operation of the production process; In summary, the self-regulating valve has no need for external energy, high degree of automation, simple maintenance, high reliability, energy saving and environmental protection, and wide temperature adaptability, and is widely used in various industrial production processes.

[0027] As shown in Figure 2 , Figure 9 , Figure 10 , Figure 12 , Figure 13 , the closing assembly includes a bottom side circular plate 28 slidingly installed inside the built-in cavity 15, a support shaft 29 fixedly installed at the top middle of the bottom side circular plate 28, a driving disc 30 slidingly sleeved on the support shaft 29, a closing circular plate 35 fixedly installed at the top end of the support shaft 29, the outer diameter of the closing circular plate 35 being the same as that of the bottom side circular plate 28, a plurality of arc-shaped plates 31 slidingly installed between the top wall of the bottom side circular plate 28 and the bottom wall of the closing circular plate 35, the arc-shaped plates 31 forming a cylindrical structure when folded, a support rod 32 rotatably installed at the inner end of each arc-shaped plate 31, the other end of each support rod 32 being rotatably installed on the outer end of the driving disc 30, the arc-shaped plates 31 being freely slidable between the bottom side circular plate 28 and the closing circular plate 35, a plurality of built-in shells 33 fixedly installed at the top end of the bottom side circular plate 28, each built-in shell 33 being correspondingly arranged with the adjacent arc-shaped plate 31, a built-in strip 34 fixedly installed at the inner lower end of each arc-shaped plate 31, the built-in strip 34 being slidingly installed in the built-in shell 33, a lifting screw 36 rotatably installed at the bottom end of the driving disc 30, the lifting screw 36 being threadedly installed on the closing circular plate 35, a positioning hole corresponding to the lifting screw 36 being formed in the gasket 2, the lifting screw 36 being freely rotatable in the positioning hole and the built-in cavity 15, the lifting screw 36 passing through the built-in cavity 15 and the positioning hole to above the gasket 2, so as to facilitate the rotation of the lifting screw 36 at any time; The sealing sleeve 37 is made of elastic rubber, the inside of the sealing sleeve 37 is a hollow structure with an open top end, the inner diameter of the upper end circular hole of the sealing sleeve 37 is smaller than the outer diameter of the closing circular plate 35, the sealing sleeve 37 is sleeved on the outer side of the plurality of arc-shaped plates 31, the closing circular plate 35, and the bottom side circular plate 28 (as shown in Figure 9 ), the bottom end of the bottom side circular plate 28 is in a closed state, since the sealing sleeve 37 is elastic, it can press the two ends of the closing circular plate 35 and the bottom side circular plate 28 tightly; under normal circumstances, the sealing sleeve 37 blocks the entrance cavity 16, the discharge cavity 17, and the built-in cavity 15; 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. 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.

[0028] 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. The personnel fix and install the left end of the left connecting pipe 18 on the water outlet end of one of the pipes, fix and install the right end of the right connecting pipe 19 on the water inlet end of the other pipe, open the water source, liquid flows into the inlet cavity 16 through the left connecting pipe 18, then the liquid pushes the sealing assembly to move upwards along the built-in cavity 15, the spring assembly is continuously compressed, when the sealing assembly opens the inlet of the discharge cavity 17, liquid flows into the inside of the right connecting pipe 19 through the discharge cavity 17, and finally the liquid enters the pipe on the right side, at the same time, liquid enters the upper shell 21 through the pressure relief pipe 23, and liquid enters the space above the pressure sheet 22; When the liquid pressure in the right connecting pipe 19 gradually increases, the liquid drives the pressure sheet 22 to slide downwards, the pressure sheet 22 drives the spring assembly to compress, and pushes the sealing assembly to slide downwards, the sealing assembly blocks the inlet end of the discharge cavity 17, so that the opening degree of the discharge cavity 17 is reduced, so that the pressure liquid in the right connecting pipe 19 is reduced, the pipe pressure is prevented from being too large, and the service life of the pipe is enhanced; The self-adjusting valve relies on the power of the medium itself for adjustment, does not need external power supply or other power source support, has simple structure, is convenient to maintain, reduces maintenance cost and time, can work stably in harsh industrial environment, and ensures normal operation of the production process; In summary, the self-adjusting valve has the advantages of no external energy source, high automation degree, simple maintenance, high reliability, energy saving and environmental protection, and wide temperature adaptability, and is widely used in various industrial production processes.

[0029] As shown in Figure 3 , Figure 7 , the adjusting screw 11 coaxially threads a lifting block 42 below the sliding push plate 39, the top end of the lifting block 42 is coaxially fixedly installed with a stabilizing plate 43, the stabilizing plate 43 is sleeved on the adjusting screw 11, the stabilizing plate 43 can freely slide up and down along the adjusting screw 11, the top end of the stabilizing plate 43 is rotatably connected with a plurality of ball bearings 44, the ball bearings 44 protrude partially, the adjusting screw 11 is sleeved with an auxiliary plate 45 above the ball bearings 44, the auxiliary plate 45 can slide up and down along the adjusting screw 11, and the top surface of the auxiliary plate 45 is in contact with the sliding push plate 39, and the lower end is in contact with the plurality of ball bearings 44; When the pressure of the pressure spring 38 needs to be adjusted, the person rotates the lifting block 42 to move upward along the adjusting screw 11, the plurality of balls 44 roll against 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 indicating plate 8 slides upward along the sliding groove cavity 7, the sliding push plate 39 pushes the pressure spring 38 to gradually compress, and the person can obtain the pressure coefficient of the pressure spring 38 by observing the scale line 10 pointed by the pointer 9, which is convenient for the person to observe. Since the lifting block 42 is threadedly connected with the lifting screw 36, the stability of the sliding push plate 39 is improved, and the person is also facilitated to operate. The balls 44 roll against the auxiliary plate 45, which improves the convenience of the operation of the lifting block 42 and reduces the physical strength of the person.

[0030] As shown in Figure 4 , Figure 5 , Figure 6 shown, the inside of the left connecting pipe 18 is fixedly provided with a storage ring 46, a plurality of outer filter holes are formed in the storage ring 46, the left end of the storage ring 46 is fixedly provided with a pointed pipe 47, the pointed pipe 47 is provided through the storage ring 46, the left end of the pointed pipe 47 is fixedly provided with a filter plate 48, the right end of the storage ring 46 is fixedly provided with a cross 49, the cross 49 is rotatably provided with a reciprocating screw rod 50, the reciprocating screw rod 50 is provided in the pointed pipe 47, a reciprocating ring assembly is threadedly provided on the reciprocating screw rod 50, the left end of the reciprocating ring assembly is fixedly provided with a plug rod plate 51, a plurality of water outlets are uniformly formed in the plug rod plate 51, the inner diameter of the water outlet is greater than the inner diameter of the outer filter hole, and the edge of the plug rod plate 51 is away from the inner wall of the pointed pipe 47; The plug rod plate 51 is fixedly provided with a rightward extending stabilizing rod 52, a limiting hole is formed in the cross 49, the stabilizing rod 52 is slidably provided in the limiting hole, the right end of the reciprocating screw rod 50 is coaxially fixedly provided with a driving fan 53, the driving fan 53 is a vane structure or other component capable of being driven by water flow, the driving fan 53 is provided on the right side of the cross 49, and water flow can drive the driving fan 53 to rotate quickly.

[0031] As shown in Figure 5 , Figure 6 shown, a plurality of water permeable holes 54 are uniformly formed in the filter plate 48, a plurality of jacks are uniformly fixedly provided on the left end of the plug rod plate 51, the jacks are correspondingly provided with the water permeable holes 54, the inner diameter of the water permeable hole 54 is twice the outer diameter of the jack, which facilitates the normal flow of water, the reciprocating ring assembly comprises a reciprocating ring 55 and a connecting rod 56, the reciprocating ring 55 is threadedly provided on the reciprocating screw rod 50, four connecting rods 56 are fixedly provided on the reciprocating ring 55, one end of each connecting rod 56 is fixedly provided on the plug rod plate 51, and the plug rod plate 51 is provided between the reciprocating screw rod 50 and the filter plate 48; When the water source is opened, liquid flows into the inlet cavity 16 through the left connecting pipe 18, and then the liquid thrust pushes the closing assembly to move upward along the built-in cavity 15, the built-in cavity 15 is opened, the spring assembly is continuously compressed, when the closing assembly opens the port of the discharge cavity 17, the liquid quickly flows into the inside of the right connecting pipe 19 through the discharge cavity 17, and the liquid continuously enters the right pipe; At the same time, the liquid drives the driving fan 53 to rotate quickly through the water permeable hole 54, the water outlet hole, the inner cavity of the tip pipe 47 and the storage ring 46, the driving fan 53 rotates with the reciprocating wire rod 50, the reciprocating ring 55 moves left with the connecting rod 56 and the plug rod plate 51, and the stabilizing rod 52 slides along the limiting hole; each top rod is inserted into the corresponding water outlet hole, since the inner diameter of the water permeable hole 54 is twice the outer diameter of the top rod, the normal flow of water is not affected, and block-shaped particles blocked in the water outlet hole can also be pushed out, and then the water flow impacts the block-shaped particles into the storage ring 46, since the inner diameter of the water outlet hole is greater than the inner diameter of the outer filter hole, the block-shaped particles are blocked in the storage ring 46, and the outer filter hole is not blocked. Since the driving fan 53 rotates quickly, the reciprocating ring 55 moves right with the connecting rod 56 and the plug rod plate 51, and the stabilizing rod 52 reversely slides along the limiting hole; each top rod is pulled out of the corresponding water outlet hole; through the continuous rotation of the reciprocating wire rod 50, the liquid is filtered, and impurities can also be stored in the storage ring 46, which is cleaned regularly by personnel, thereby improving the filtering efficiency, making the liquid uniformly pass through the filter plate 48, avoiding local overload or blockage, and ensuring the normal flow of the liquid.

[0032] It should be noted that, in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, it should be noted that, in the description of the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly mounted, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] The technical scheme of the present application has been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical schemes after the changes or replacements will all fall within the protection scope of the present application.

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).

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, 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).

4. A self-operated pressure regulating valve according to claim 3, 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.

5. 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).

6. A self-operated pressure regulating valve according to claim 5, 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).

7. A self-operated pressure regulating valve according to claim 6, 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).

8. A self-operated pressure regulating valve according to claim 3, characterized in that, 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).

9. A self-operated pressure regulating valve according to claim 8, characterized in that, 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).

10. A self-operated pressure regulating valve according to claim 3, 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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