A high-pressure self-closing water-saving valve

Abstract

The present invention relates to the technical field of self-closing water-saving valves, and discloses a high-pressure self-closing water-saving valve, comprising a valve unit and a control unit; wherein the valve unit comprises a valve body, a guide cylinder is fixedly mounted on the outer wall of the valve body, a valve stem is slidably mounted on the inner wall of the guide cylinder, a valve plate is fixedly mounted on the bottom end of the valve stem, a spring is fixedly mounted between the top surface of the valve stem and the inner top surface of the guide cylinder, and an electromagnet is provided on the top surface of the guide cylinder. According to the present invention, when the liquid pressure in the pipeline decreases and the flow rate decreases, the valve can automatically identify and respond through an internal mechanism. As the rotation speed of the turntable and the axial flow blades decreases, under the action of gravity, the shaft drives the transmission disc to move, thereby triggering a series of chain reactions, which eventually causes the valve plate to automatically move downward to the valve port position under the action of the spring, thereby achieving automatic closing of the valve. This feature greatly improves the automation level of the system and reduces the need for manual intervention.

Description

Technical Field

[0001] The present invention relates to the technical field of self-closing water-saving valves, in particular to a high-pressure self-closing water-saving valve. Background Art

[0002] High-pressure self-closing water-saving valve is a water-saving control device that combines high-pressure tolerance with automatic closing function. It is mainly used in high-pressure fluid systems (such as petroleum, chemical industry, and municipal water supply). It achieves automatic closing through pressure sensing or mechanical linkage to prevent overpressure, underpressure or medium backflow, and has both water-saving and safety functions.

[0003] After searching, CN119641933A discloses a high-pressure large-caliber self-closing valve, which relates to the technical field of wedge-type gate valves, including a valve body, an end cover is sealed and connected to the middle position of the top of the end cover, and a control wheel is rotatably connected to the center position of the top surface of the end cover. Valve ports are fixedly connected to both ends of the valve body, and a wedge-type self-closing valve core is provided on the inner side of the valve body. The control wheel is used to control the position of the wedge-type self-closing valve core. The inner side of the valve body is fixedly connected to an inclined seat that fits the wedge-type self-closing valve core near the position of the wedge-type self-closing valve core. A control mechanism is provided on one side of the valve body. The control mechanism controls the high-pressure fluid inside the valve body and acts on the top surface of the wedge-type self-closing valve core. The high-pressure fluid inside the valve body is controlled by the control mechanism, and the high-pressure fluid acting on the top surface of the wedge-type self-closing valve core is isolated. In this way, the pressure of the high-pressure fluid inside the valve body directly acts on the inner side of the wedge-type self-closing valve core, so that the position of the wedge-type self-closing valve core inside the valve body is easy to control. However, this solution still has the following shortcomings in actual use:

[0004] High-pressure self-closing water-saving valves usually rely on pressure sensors to achieve precise control of the opening and closing of the valve. Although this method can achieve relatively precise operation in theory, in actual application, first of all, the working environment is often relatively harsh, such as the presence of high humidity, corrosive gases or substances, etc. These may cause the sensor sensitivity to decrease or directly cause damage, thereby affecting the normal operation of the valve. In addition, the use of sensor control also requires professional technicians to conduct regular inspections and maintenance in order to promptly detect and solve possible problems, which undoubtedly increases the maintenance cost and difficulty of use of the equipment.

[0005] Therefore, it is necessary to design a high-pressure self-closing water-saving valve to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a high-pressure self-closing water-saving valve.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A high-pressure self-closing water-saving valve, comprising a valve unit and a control unit;

[0009] The valve unit includes a valve body, a guide cylinder is fixedly mounted on the outer wall of the valve body, a valve stem is slidably mounted on the inner wall of the guide cylinder, a valve plate is fixedly mounted on the bottom end of the valve stem, a spring is fixedly mounted between the top surface of the valve stem and the inner top surface of the guide cylinder, an electromagnet is provided on the top surface of the guide cylinder, and a metal sheet is fixedly mounted on the top end of the valve stem;

[0010] The control unit includes a sleeve that is provided through the outer wall of the liquid inlet end of the valve body, and the sleeve is rotatably connected to the penetration point. The inner wall of the sleeve is provided with a shaft, and a rotating disk is fixedly installed on one end of the shaft located inside the valve body. The outer wall of the rotating disk is fixedly installed with a plurality of axial flow blades distributed in an annular array.

[0011] Wherein, a sealing box is fixedly installed on the top surface of the valve body, and the top end of the shaft passes through the bottom surface of the sealing box and is provided with a trigger assembly;

[0012] Wherein, a buffer component is provided on the bottom surface of the valve plate, and a display component is provided on the top surface of the sealing box.

[0013] As a preferred technical solution of the present invention, a limiting block is fixedly installed on the inner wall of the sleeve, a limiting groove is provided on the outer wall of the shaft rod, and the limiting block is slidably connected to the limiting groove.

[0014] As a preferred technical solution of the present invention, the trigger assembly includes a transmission disk fixedly mounted on the top end of the shaft, and a plurality of magnetic pieces 1 distributed in a circular array are fixedly mounted on the outer wall of the transmission disk. Two transmission plates are symmetrically mounted on the inner bottom surface of the sealing box through a rotating shaft 1 and a torsion spring 1 for rotation. The ends of the two transmission plates are fixedly mounted with magnetic piece 2, and a push plate is slidably mounted on the inner bottom surface of the sealing box, and the end of the transmission plate away from magnetic piece 2 is slidably connected to the side of the push plate through a slide groove and a slider.

[0015] As a preferred technical solution of the present invention, the relative magnetic poles of the magnetic piece 1 and the magnetic piece 2 are the same, and a limiting structure is provided between the push plate and the valve stem.

[0016] As a preferred technical solution of the present invention, the limiting structure includes a driving rack fixedly mounted on the side of the push plate, a transmission gear is rotatably mounted on the inner bottom surface of the sealing box through a bracket, a positioning rod is provided through the outer wall of the guide cylinder, a transmission rack is fixedly mounted on one end of the positioning rod located on the outside of the guide cylinder, and the transmission rack is slidably connected to the top end of the bracket, the transmission gear is engaged with the transmission rack and the driving rack, and a positioning groove adapted to the positioning rod is provided on the outer wall of the valve stem.

[0017] As a preferred technical solution of the present invention, the end of the positioning rod is in contact with the inner wall of the positioning groove.

[0018] As a preferred technical solution of the present invention, the buffer assembly includes two guide rods fixedly mounted on the bottom surface of the sealing box, and the two guide rods are located outside the end of the transmission plate, and both ends of the two guide rods are slidably fitted with guide blocks, and the bottom surfaces of two guide blocks located on the same side of the four guide blocks are fixedly mounted with pressure plates, and an elastic air bag is fixedly mounted between the opposite sides of the two pressure plates, and a buffer air bag ring is provided at the side edge of the bottom surface of the valve plate, and the elastic air bag and the buffer air bag ring are connected by a conduit.

[0019] As a preferred technical solution of the present invention, the guide rod is configured to be U-shaped, and the pressure plate and the push plate are configured to be vertical.

[0020] As a preferred technical solution of the present invention, the display assembly includes a fixed box fixedly installed on the top surface of the sealed box, and two cover plates are symmetrically rotated and installed on the inner wall of the top opening of the fixed box through a second rotating shaft and a second torsion spring. The bottom ends of the two cover plates are fixedly installed with buckles, and the top surface of the sealed box is provided with a through opening adapted to the buckle. Two fixing frames are symmetrically fixedly installed on the inner wall of the sealed box, and a buckle plate adapted to the buckle is rotatably installed on the inner wall of the fixing frame.

[0021] As a preferred technical solution of the present invention, the bottom surface of the cover plate and the inner bottom surface of the fixing box are both provided with reflective sheets.

[0022] The present invention has the following beneficial effects:

[0023] 1. By setting up axial flow blades and transmission plates, when the liquid pressure and flow rate in the pipeline decrease, the valve can automatically identify and respond through its internal mechanism. As the rotation speed of the turntable and axial flow blades decreases, the shaft drives the transmission plate to move under the action of gravity, which in turn triggers a series of chain reactions. Ultimately, the valve plate automatically moves downward to the valve port position under the action of the spring, achieving automatic closing of the valve. This feature greatly improves the system's degree of automation and reduces the need for manual intervention.

[0024] 2. By setting up an elastic airbag and a buffer airbag ring, when the valve is closed, the elastic airbag is squeezed by the pressure plate, allowing gas to enter the buffer airbag ring, thereby causing the buffer airbag ring to expand and buffer the contact between the valve plate and the valve port, effectively mitigating the water hammer effect that may be caused by rapid valve closing. This not only protects the pipeline system from potential damage, but also extends the service life of the equipment;

[0025] 3. By setting the cover plate and the reflective sheet, when the valve is closed, the cover plate will be released from the limit due to the squeezing of the outer wall of the transmission plate on the buckle plate, and will automatically open under the action of the torsion spring, revealing the reflective sheet on the bottom of the fixed box. This greatly increases the probability of the valve being discovered for valves installed in dark environments, facilitates regular inspection and maintenance work by staff, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of a high-pressure self-closing water-saving valve proposed by the present invention;

[0027] Figure 2 This is a partial cross-sectional structural diagram of a high-pressure self-closing water-saving valve proposed by the present invention;

[0028] Figure 3 This is a schematic diagram of the shaft structure of a high-pressure self-closing water-saving valve proposed by the present invention;

[0029] Figure 4 This is a schematic diagram of the sealing internal structure of a high-pressure self-closing water-saving valve proposed by the present invention;

[0030] Figure 5 for Figure 4 A in the middle is an enlarged structural diagram;

[0031] Figure 6 for Figure 2 The enlarged structural diagram at B in the middle;

[0032] Figure 7 This is a structural schematic diagram of a sealing box for a high-pressure self-closing water-saving valve proposed by the present invention;

[0033] Figure 8 This is a schematic diagram of the exploded structure of the fixing box and cover plate of a high-pressure self-closing water-saving valve proposed by the present invention;

[0034] Figure 9 for Figure 8 The enlarged structural diagram at C in the middle;

[0035] Figure 10 This is a schematic diagram of the connection structure between the transmission plate and the push plate of a high-pressure self-closing water-saving valve proposed by the present invention;

[0036] Figure 11 This is a schematic diagram of the cover plate structure of a high-pressure self-closing water-saving valve proposed by the present invention.

[0037] In the figure: 11. valve body; 12. guide cylinder; 13. valve stem; 14. valve plate; 15. spring; 21. bushing; 22. shaft; 23. limit block; 24. limit slot; 25. turntable; 26. axial flow blade; 31. sealing box; 32. transmission plate; 33. magnetic piece 1; 34. transmission plate; 35. magnetic piece 2; 36. push plate; 41. drive rack; 42. transmission gear; 43. positioning rod; 44. transmission rack; 45. positioning slot; 51. guide rod; 52. guide block; 53. pressure plate; 54. elastic airbag; 55. cushioning airbag ring; 56. conduit; 61. fixing box; 62. cover plate; 63. buckle; 64. through port; 65. fixing frame; 66. buckle plate; 67. reflective sheet; 71. electromagnet; 72. metal sheet. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] Reference Figure 1-11 , a high-pressure self-closing water-saving valve, comprising a valve unit and a control unit;

[0040] The valve unit includes a valve body 11, a guide cylinder 12 is fixedly mounted on the outer wall of the valve body 11, a valve stem 13 is slidably mounted on the inner wall of the guide cylinder 12, a valve plate 14 is fixedly mounted on the bottom end of the valve stem 13, a spring 15 is fixedly mounted between the top surface of the valve stem 13 and the inner top surface of the guide cylinder 12, an electromagnet 71 is provided on the top surface of the guide cylinder 12, and a metal sheet 72 is fixedly mounted on the top end of the valve stem 13;

[0041] The control unit includes a sleeve 21 that is provided through the outer wall of the liquid inlet end of the valve body 11, and the sleeve 21 is rotatably connected to the penetration point. The inner wall of the sleeve 21 is provided with a shaft 22, and a limit block 23 is fixedly installed on the inner wall of the sleeve 21. The outer wall of the shaft 22 is provided with a limit groove 24, and the limit block 23 is slidably connected to the limit groove 24. A turntable 25 is fixedly installed on the end of the shaft 22 located on the inner side of the valve body 11, and a plurality of axial flow blades 26 distributed in an annular array are fixedly installed on the outer wall of the turntable 25.

[0042] Among them, a sealing box 31 is fixedly installed on the top surface of the valve body 11;

[0043] The two ends of the valve body 11 are respectively connected to the high-pressure pipeline. In the use state, the valve plate 14 is separated from the valve port in the valve body 11, and the valve body 11 is in the open state. The liquid can flow normally in the valve body 11, and under the action of the liquid flow velocity, the turntable 25 and the axial flow blades 26 on its outer wall can be impacted. Under the action of the axial flow blades 26, the turntable 25 can drive the shaft 22 to rotate when it rotates, and under the action of the limit groove 24 and the limit block 23, the shaft sleeve 21 outside the shaft 22 can also rotate. At the same time, when the axial flow blades 26 rotate, they can drive the turntable 25 and the shaft 22 to move upward. The limit groove 24 can limit the movement of the shaft 22 to prevent its moving stroke from being too long.

[0044] The top of the shaft 22 passes through the bottom surface of the sealed box 31 and is provided with a trigger assembly, which includes a transmission disk 32 fixedly mounted on the top of the shaft 22. The outer wall of the transmission disk 32 is fixedly mounted with a plurality of magnetic pieces 33 distributed in a ring array. The inner bottom surface of the sealed box 31 is symmetrically rotated by a rotating shaft 1 and a torsion spring 1. The rotating shaft 1 and the torsion spring 1 are as shown in FIG. Figure 10 As shown, the first rotating shaft is fixedly connected to the inner bottom surface of the sealing box 31, the transmission plate 34 is rotatably mounted on the first rotating shaft, and the two ends of the torsion spring are respectively fixedly connected to the first rotating shaft and the transmission plate 34. The ends of the two transmission plates 34 are fixedly mounted with the second magnetic piece 35. The opposite magnetic poles of the first magnetic piece 33 and the second magnetic piece 35 are the same. A push plate 36 is slidably mounted on the inner bottom surface of the sealing box 31, and the end of the transmission plate 34 away from the second magnetic piece 35 is slidably connected to the side of the push plate 36 through a slide groove and a slider. A limiting structure is provided between the push plate 36 and the valve stem 13.

[0045] The limiting structure includes a drive rack 41 fixedly mounted on the side of the push plate 36. A transmission gear 42 is rotatably mounted on the inner bottom surface of the sealing box 31 through a bracket. A positioning rod 43 is provided through the outer wall of the guide cylinder 12. A transmission rack 44 is fixedly mounted on one end of the positioning rod 43 located outside the guide cylinder 12, and the transmission rack 44 is slidably connected to the top of the bracket. The transmission gear 42 meshes with the transmission rack 44 and the drive rack 41. A positioning groove 45 adapted to the positioning rod 43 is provided on the outer wall of the valve stem 13. The end of the positioning rod 43 fits into the inner wall of the positioning groove 45.

[0046] Under normal use, the transmission disc 32 at the top of the shaft 22 can be located above the transmission plate 34, and the magnetic piece 1 33 and the magnetic piece 2 35 can be misaligned; if the liquid pressure in the pipeline decreases and the flow rate weakens, the rotation speed of the turntable 25 and the axial flow blade 26 will decrease, and the shaft 22 can move downward under the action of its own weight, and drive the transmission disc 32 to move. When the transmission disc 32 moves downward, it can move to the inner bottom surface of the sealing box 31. At this time, the magnetic piece 1 33 can be in a relative position with the magnetic piece 2 35 on the side of the transmission plate 34. Since the relative magnetic poles of the magnetic piece 1 33 and the magnetic piece 2 35 are the same, the transmission plate 34 can be moved under the action of the repulsive magnetic force. By rotating the shaft, its end portion rotates to push the push plate 36 and drive the drive rack 41 to slide in the direction close to the guide cylinder 12. Since the transmission gear 42 is respectively engaged with the drive rack 41 and the transmission rack 44, the transmission gear 42 can drive the transmission rack 44 and the positioning rod 43 to slide in opposite directions when the drive rack 41 slides, thereby driving the positioning rod 43 to move out of the positioning groove 45 on the outer wall of the valve stem 13, releasing the limit on the valve stem 13. After the limit is released, the valve stem 13 can move downward under the support of the spring 15 and drive the valve plate 14 to move into the valve port, thereby closing the valve body 11.

[0047] A buffer assembly is provided on the bottom surface of the valve plate 14. The buffer assembly includes two guide rods 51 fixedly mounted on the bottom surface of the sealing box 31. The guide rods 51 are arranged in a U-shape and are located outside the ends of the transmission plate 34. Guide blocks 52 are slidably mounted on both ends of the two guide rods 51. A pressure plate 53 is fixedly mounted on the bottom surface of two guide blocks 52 located on the same side of the four guide blocks 52. The pressure plate 53 is arranged perpendicular to the push plate 36. An elastic airbag 54 is fixedly mounted between the opposite sides of the two pressure plates 53. A buffer airbag ring 55 is provided on the side edge of the bottom surface of the valve plate 14. The elastic airbag 54 and the buffer airbag ring 55 are connected by a conduit 56.

[0048] During the rotation of the transmission plate 34 along the rotating shaft, its end portion can squeeze the two pressure plates 53, so that the two pressure plates 53 slide toward each other along the guide rod 51 through the guide block 52, thereby squeezing the elastic airbag 54 between the pressure plates 53. After the elastic airbag 54 is squeezed, the gas inside it can enter the buffer airbag ring 55 through the conduit 56, causing the buffer airbag ring 55 to expand. When the valve plate 14 enters the valve port, the buffer airbag ring 55 can buffer the contact between the two and slow down the water hammer effect.

[0049] The top surface of the sealed box 31 is provided with a display assembly, which includes a fixed box 61 fixedly mounted on the top surface of the sealed box 31. The inner wall of the top opening of the fixed box 61 is symmetrically rotated by a second rotating shaft and a second torsion spring. The second rotating shaft and the second torsion spring are as shown in FIG. Figure 11As shown, the second rotating shaft is rotatably mounted on the inner wall of the fixed box 61, the cover plate 62 is fixedly sleeved on the second rotating shaft, and the two ends of the second torsion spring are respectively fixedly connected to the second rotating shaft and the fixed box 61, the bottom ends of the two cover plates 62 are fixedly mounted with buckles 63, the top surface of the sealing box 31 is provided with a through-hole 64 adapted to the buckle 63, and the inner wall of the sealing box 31 is symmetrically fixedly mounted with two fixing brackets 65, the inner wall of the fixing bracket 65 is rotatably mounted with a buckle plate 66 adapted to the buckle 63, and the bottom surface of the cover plate 62 and the inner bottom surface of the fixed box 61 are both provided with a reflective sheet 67;

[0050] When the transmission disc 32 falls and drives the transmission plate 34 to rotate, the outer wall of the transmission plate 34 can squeeze the buckle plate 66, so that the buckle plate 66 can rotate through the fixing frame 65. During the rotation of the buckle plate 66, its end can separate from the buckle 63 on the bottom surface of the cover plate 62, releasing the limit of the buckle 63. After the buckle 63 is released, since the cover plate 62 is rotatably connected to the fixing box 61 through the second rotating shaft and the second torsion spring, the two cover plates 62 can be rotated open under the action of the second torsion spring, and finally be in a vertical state, fixing The reflective sheet 67 on the bottom of the box 61 is exposed. Since the entire valve may be installed in a pipe well with weak light, the upright cover 62 and the reflective sheet 67 on the bottom of the fixed box 61 allow the staff to directly reflect the flashlight when inspecting, so that the staff can find it in time, which is more convenient to use. When the liquid is passed again, the electromagnet 71 can be turned on and the metal sheet 72 can be adsorbed, and the valve stem 13 and the valve plate 14 can be reset. At the same time, after the liquid flows normally, the shaft rod 22 can also be reset for normal use.

[0051] The specific working principle of the present invention is as follows:

[0052] When in use, the two ends of the valve body 11 can be connected to the high-pressure pipes respectively. In the use state, the valve plate 14 is separated from the valve port in the valve body 11, and the valve body 11 is in the open state. The liquid can flow normally in the valve body 11, and under the action of the liquid flow rate, the turntable 25 and the axial flow blades 26 on its outer wall can be impacted. Under the action of the axial flow blades 26, the turntable 25 can drive the shaft 22 to rotate when it rotates, and under the action of the limiting groove 24 and the limiting block 23, the shaft sleeve 21 outside the shaft 22 can also rotate. At the same time, when the axial flow blades 26 rotate, the turntable 25 and the shaft 22 can be driven to move upward. The limiting groove 24 can limit the movement of the shaft 22 to prevent its movement stroke from being too long. The transmission disc 32 at the top of the shaft 22 can be located above the transmission plate 34, and the magnetic piece 1 33 and the magnetic piece 2 35 can be misaligned;

[0053] If the liquid pressure in the pipeline decreases and the flow rate weakens, the rotation speed of the turntable 25 and the axial flow blade 26 decreases. Under the action of its own weight, the shaft 22 can move downward and drive the transmission plate 32 to move. When the transmission plate 32 moves downward, it can move to the inner bottom surface of the sealing box 31. At this time, the magnetic piece 1 33 can be in a relative position with the magnetic piece 2 35 on the side of the transmission plate 34. Since the relative magnetic poles of the magnetic piece 1 33 and the magnetic piece 2 35 are the same, the transmission plate 34 can be rotated by the rotating shaft under the action of the repulsive magnetic force, and its end can push the push plate 36 when it rotates. The driving rack 41 is driven and drives the driving rack 41 to slide in the direction close to the guide cylinder 12. Since the transmission gear 42 is meshed with the driving rack 41 and the transmission rack 44 respectively, when the driving rack 41 slides, the transmission gear 42 can drive the transmission rack 44 and the positioning rod 43 to slide in the opposite direction, thereby driving the positioning rod 43 to move out of the positioning groove 45 on the outer wall of the valve stem 13, releasing the restriction on the valve stem 13. After the restriction is released, the valve stem 13 can move downward under the support of the spring 15 and drive the valve plate 14 to move into the valve port, thereby closing the valve body 11.

[0054] During the rotation of the transmission plate 34 along the rotating shaft, its end portion can squeeze the two pressure plates 53, so that the two pressure plates 53 slide toward each other along the guide rod 51 through the guide block 52, thereby squeezing the elastic airbag 54 between the pressure plates 53. After the elastic airbag 54 is squeezed, the gas inside it can enter the buffer airbag ring 55 through the conduit 56, so that the buffer airbag ring 55 expands. When the valve plate 14 enters the valve port, the buffer airbag ring 55 can buffer the contact between the two and slow down the water hammer effect. At the same time, when the transmission disc 32 falls and drives the transmission plate 34 to rotate, the outer wall of the transmission plate 34 can squeeze the buckle plate 66, so that the buckle plate 66 rotates through the fixing frame 65. During the rotation of the buckle plate 66, its end portion can separate from the buckle 63 on the bottom surface of the cover plate 62. The second cover 62 is rotatably connected to the fixing box 61 by the second rotating shaft and the second torsion spring. Therefore, the two cover plates 62 can be rotated and opened under the action of the second torsion spring, and finally be in a vertical state, exposing the reflective sheet 67 on the bottom of the fixing box 61. Since the entire valve may be installed in a pipe well, the light is weak. The upright cover plate 62 and the reflective sheet 67 on the bottom of the fixing box 61 allow the staff to directly reflect the flashlight when inspecting, so that the staff can find it in time, which is more convenient to use. When the liquid is passed again, the electromagnet 71 can be turned on and the metal sheet 72 can be adsorbed. The valve stem 13 and the valve plate 14 can be reset. At the same time, after the liquid flows normally, the shaft rod 22 can also be reset for normal use.

[0055] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A high-pressure self-closing water-saving valve, characterized in that: Including valve unit and control unit; The valve unit includes a valve body, a guide cylinder is fixedly mounted on the outer wall of the valve body, a valve stem is slidably mounted on the inner wall of the guide cylinder, a valve plate is fixedly mounted on the bottom end of the valve stem, a spring is fixedly mounted between the top surface of the valve stem and the inner top surface of the guide cylinder, an electromagnet is provided on the top surface of the guide cylinder, and a metal sheet is fixedly mounted on the top end of the valve stem; The control unit includes a sleeve that is provided through the outer wall of the liquid inlet end of the valve body, and the sleeve is rotatably connected to the penetration point. The inner wall of the sleeve is provided with a shaft, and a rotating disk is fixedly installed on one end of the shaft located inside the valve body. The outer wall of the rotating disk is fixedly installed with a plurality of axial flow blades distributed in an annular array. The top surface of the valve body is fixedly mounted with a sealing box, the top end of the shaft passes through the bottom surface of the sealing box and is provided with a trigger assembly, the trigger assembly includes a transmission disk fixedly mounted on the top end of the shaft, a plurality of magnetic pieces 1 distributed in a ring array are fixedly mounted on the outer wall of the transmission disk, the inner bottom surface of the sealing box is symmetrically mounted with two transmission plates through a rotating shaft 1 and a torsion spring 1, the ends of the two transmission plates are fixedly mounted with magnetic pieces 2, a push plate is slidably mounted on the inner bottom surface of the sealing box, and the end of the transmission plate away from the magnetic piece 2 is connected to the push plate through a slide groove, a slider and a push plate. The side is slidingly connected, the magnetic poles of the magnetic piece 1 and the magnetic piece 2 are the same, a limiting structure is provided between the push plate and the valve stem, the limiting structure includes a driving rack fixedly mounted on the side of the push plate, the inner bottom surface of the sealing box is rotatably mounted with a transmission gear through a bracket, a positioning rod is provided through the outer wall of the guide cylinder, a transmission rack is fixedly mounted on one end of the positioning rod located outside the guide cylinder, and the transmission rack is slidably connected to the top end of the bracket, the transmission gear is meshed with the transmission rack and the driving rack, and a positioning groove adapted to the positioning rod is provided on the outer wall of the valve stem; Wherein, a buffer component is provided on the bottom surface of the valve plate, and a display component is provided on the top surface of the sealing box.

2. The high-pressure self-closing water-saving valve according to claim 1, characterized in that: A limiting block is fixedly installed on the inner wall of the shaft sleeve, a limiting groove is provided on the outer wall of the shaft rod, and the limiting block is slidably connected to the limiting groove.

3. The high-pressure self-closing water-saving valve according to claim 2, characterized in that: The end of the positioning rod is fitted with the inner wall of the positioning groove.

4. The high-pressure self-closing water-saving valve according to claim 3, characterized in that: The buffer assembly includes two guide rods fixedly mounted on the bottom surface of the sealing box, and the two guide rods are located outside the end of the transmission plate, and both ends of the two guide rods are slidably fitted with guide blocks, and the bottom surfaces of two guide blocks located on the same side of the four guide blocks are fixedly mounted with pressure plates, and an elastic airbag is fixedly mounted between the opposite sides of the two pressure plates, and a buffer airbag ring is provided at the side edge of the bottom surface of the valve plate, and the elastic airbag and the buffer airbag ring are connected by a conduit.

5. The high-pressure self-closing water-saving valve according to claim 4, characterized in that: The guide rod is arranged in a U shape, and the pressure plate and the push plate are arranged vertically.

6. The high-pressure self-closing water-saving valve according to claim 1, characterized in that: The display assembly includes a fixed box fixedly installed on the top surface of the sealed box, and two cover plates are symmetrically installed on the inner wall of the top opening of the fixed box through a second rotating shaft and a second torsion spring. The bottom ends of the two cover plates are fixedly installed with buckles. The top surface of the sealed box is provided with a through opening adapted to the buckle, and the inner wall of the sealed box is symmetrically fixedly installed with two fixing frames, and the inner wall of the fixing frame is rotatably installed with a buckle plate adapted to the buckle.

7. The high-pressure self-closing water-saving valve according to claim 6, characterized in that: The bottom surface of the cover plate and the inner bottom surface of the fixing box are both provided with reflective sheets.

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