Water valve with leakage self-locking function

Abstract

The invention discloses a water valve with a leakage self-locking function, and relates to the technical field of valves, the water valve comprises a valve body, a rotating handle is mounted on a valve rod of the valve body, connecting water pipes are symmetrically mounted on the two sides of the valve body, and leakage detection assemblies are arranged on the two sides of the valve body; when the water valve works, water flow is used for driving the leakage detection assembly to work, rotation detection is carried out on the connecting position of the water pipe and the water valve, and when leakage is detected, the leakage detection assembly is driven by the water flow to work. And the anti-leakage assembly is started to reinforce and seal the joint of the water valve and the connecting water pipe.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to a water valve with a leakage self-locking function. Background Art

[0002] As a key component in fluid control systems, valves have a background and importance in many fields. There are many types of valves, including gate valves, stop valves, butterfly valves, ball valves, etc. They play an important role in controlling the flow of various fluids such as air, water, steam, corrosive media, mud, oil, liquid metal and radioactive media. In the current context of rising energy prices, innovative valve design plays a vital role in reducing energy consumption and achieving energy conservation and consumption reduction. This is not only a positive response to environmental protection requirements, but also a key strategy to promote sustainable development. As an indispensable safety barrier in many key systems, the improvement of valve reliability and safety is crucial to reducing the risk of leakage and failure.

[0003] However, the existing water valves do not have the function of preventing leakage and cannot be self-locking in case of leakage. This urgently requires us to develop a new water valve with anti-leakage function to further improve the safety and environmental protection performance of the water flow delivery system. Summary of the invention

[0004] The object of the present invention is to provide a water valve with a leakage self-locking function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water valve with a leakage self-locking function, characterized in that: the water valve with a leakage self-locking function comprises a valve body, a rotating handle is installed on the valve stem of the valve body, connecting water pipes are symmetrically installed at both ends of the valve body, the valve body and the connecting water pipe are connected by multiple bolts, leakage detection components are arranged on both sides of the valve body, an anti-leakage component is arranged at the connection between the connecting water pipe and the valve body, and a reinforcement component is arranged above the valve body. When the water valve is in use, driven by the water flow, the leakage detection component performs rotation monitoring on the connection between the valve body and the connecting water pipe. When leakage occurs at the connection between the valve body and the connecting water pipe, the leakage detection component transmits a signal to the anti-leakage component, and the anti-leakage component starts to work to reinforce and seal the connection.

[0006] As a preferred technical solution, the anti-leakage assembly includes a driving motor, a gear 1, a gear 2, a sliding hole, a round rod, a connecting bent rod, a cylinder and an extruded arc plate;

[0007] A driving motor and a plurality of round rods are installed on both side end surfaces of the valve body, a gear 1 is installed on the output end of the driving motor, a gear 2 is rotatably installed on the end of the valve body close to the water pipe, the gear 1 is meshed with the gear 2, a plurality of sliding holes are opened on the gear 2, and a plurality of the round rods pass through the sliding holes, a plurality of cylinders are installed on both ends of the valve body, an extrusion arc plate is rotatably installed on the plurality of cylinders, the extrusion arc plate is connected to the gear 2 through a connecting bent rod, and the two ends of the connecting bent rod are hinged to the gear 2 and the extrusion arc plate respectively, when leakage is detected, the driving motor starts to drive the gear 1 at the output end to rotate, and then drives the gear 2 meshing therewith to rotate, at this time, the gear 2 can drive the extrusion arc plate to rotate through the connecting bent rod during the rotation process, forming a shutter effect, and by controlling the rotation angle of the gear 1, the contraction degree of the plurality of extrusion arc plates can be controlled, so that the extrusion arc plate can extrude and seal the connection between the water pipe and the valve body, which can avoid leakage and ensure the stability of the liquid delivery line.

[0008] As a preferred technical solution, the leakage detection assembly includes a water inlet pipe, a water outlet pipe, a piston cylinder, a piston rod, a piston, an annular orifice plate, a rotating gear, a transmission gear, a ring gear, a detection rod, a lever, a sensor 1, a sensor 2 and a spring 1;

[0009] Two piston cylinders are symmetrically installed on both sides of the valve body, and a piston is slidably installed inside the piston cylinder, and a piston rod is fixedly installed on the piston. A spring is sleeved on the piston rod, and the spring connects the piston cylinder and the piston. The piston cylinder is connected to the valve body through an inlet pipe and an outlet pipe, and an annular orifice plate is fixedly installed on the end of the piston rod away from the piston. A rotating gear is rotatably installed on the valve body, and a shift rod is eccentrically installed on the rotating gear, and the shift rod passes through the hole on the annular orifice plate. An annular gear and a transmission gear are rotatably installed on one side of the valve body close to the rotating gear, and the rotating gear is meshed with the transmission gear, and the transmission gear is meshed with the annular gear. A detection rod is installed on the annular gear, and a water leakage detector is installed on the detection rod. The water leakage detector is electrically connected to the driving motor. When the water valve is working, water flows into the piston through the water inlet pipe. The piston drives the piston rod to slide and squeeze the spring one under the action of water flow. When the piston approaches the sensor two, the sensor two transmits the signal to the switch one-way valve two to control the water inlet pipe to be closed. At this time, the liquid in the piston cylinder can be discharged through the water outlet pipe. The piston and the piston rod are reset by the spring one and approach the sensor one. The sensor one transmits the signal to the switch one-way valve two to control the water outlet pipe to be closed, so that the water inlet pipe can flow into the water, and the piston and the piston rod move, so as to realize the reciprocating movement of the piston rod, and the piston rod drives the annular orifice plate to move synchronously. Under the cooperation of the annular orifice plate and the lever, the rotating gear can be driven to rotate. Through the meshing action of the rotating gear and the transmission gear, the transmission gear can drive the annular gear to rotate, so that the annular gear can drive the detection rod to move in a circular trajectory, so that the water leakage detector can realize the comprehensive monitoring of the connection between the valve body and the water pipe.

[0010] As an optimal technical solution, a switch one-way valve 1 is installed in the water inlet pipe, a switch one-way valve 2 is installed in the water outlet pipe, and sensor 1 and sensor 2 are installed inside the piston cylinder. Sensor 1 is electrically connected to switch one-way valve 1, and sensor 2 is electrically connected to switch one-way valve 2.

[0011] As a preferred technical solution, the reinforcement assembly includes a movable cylinder, a sliding plate, a connecting rod, a movable plate, a moving rod, a conversion block, an extrusion rod and an arc plate;

[0012] A movable cylinder is installed in the valve body, a water inlet hole is provided at the bottom of the movable cylinder, a sliding plate is slidably installed inside the movable cylinder, a through hole is provided at the top of the movable cylinder, a through hole is provided on the valve body, the through hole is butted with the through hole, a connecting rod is installed on the side of the sliding plate close to the through hole, the connecting rod passes through the through hole and the through hole, and is slidably matched, a movable plate is installed on the connecting rod, a plurality of moving rods are installed on the upper surface of the movable plate, a conversion block is installed on the plurality of moving rods, a movable groove is provided inside the conversion block, and an extrusion rod is slidably installed inside the movable groove One end of the extrusion rod is fixedly connected with an arc plate. When the valve is working, water can flow into the movable cylinder through the water inlet hole. The pushing force of the sliding plate through the water pressure can make the sliding plate compression spring move up, and then the transmission member composed of the connecting rod, the movable plate and the moving rod can drive the conversion block to move synchronously. When the conversion block moves up, the round block on the extrusion rod slides accordingly in the serpentine groove, so that the extrusion rod can drive the arc plate to move toward the sealing gasket, thereby squeezing the sealing gasket, and can realize automatic adjustment of the sealing effect according to the change of water pressure intensity.

[0013] As a preferred technical solution, a sealing gasket is installed at the gap between the valve body and the valve stem, a slot hole is opened on the valve body, and the arc plate is slidably installed in the slot hole.

[0014] As a preferred technical solution, a spring is sleeved on the connecting rod, the spring connects the sliding plate and the movable cylinder, and the sealing gasket and the slot hole are at the same level.

[0015] As an optimal technical solution, a serpentine groove is provided in the conversion block, a round block is installed on the extrusion rod, and the round block is slidably installed in the serpentine groove. The serpentine groove can be used to make the extrusion rod move laterally when the conversion block moves upward, thereby driving the arc plate to extrude the sealing gasket.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention sets a leakage detection component. When the water valve is working, the water flow drives the piston rod to make reciprocating linear motion, drives the transmission gear to rotate and drives the ring gear to rotate, so that the detector on the detection rod can comprehensively monitor the connection between the valve body and the water pipe.

[0018] 2. The present invention sets up an anti-leakage component. After the detector detects leakage at the connection, the drive motor starts to drive gear 1 and gear 2 to rotate, and drives the extrusion arc plate to extrude and seal the connection through the connecting bent rod.

[0019] 3. The present invention sets a reinforcement component. When the valve is working, the water pressure pushes the sliding plate, which can make the sliding plate compression spring move up, and then make the conversion block move up, and make the round block on the extrusion rod slide accordingly in the serpentine groove, so that the extrusion rod can drive the arc plate to move toward the sealing gasket, realize the extrusion of the sealing gasket, and realize the automatic adjustment of the sealing effect according to the change of the water pressure intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention from a first viewing angle;

[0021] Figure 2 is a first cross-sectional structural schematic diagram of the present invention;

[0022] Figure 3 is a schematic diagram of the structure of the present invention from a second viewing angle;

[0023] Figure 4 It is a third perspective structural schematic diagram of the present invention;

[0024] Figure 5 yes Figure 3 A is an enlarged structural diagram;

[0025] Figure 6 yes Figure 1 The enlarged structural diagram at B in FIG.

[0026] Figure 7 yes Figure 3 The enlarged structural diagram at C in FIG.

[0027] Figure 8 yes Figure 2 The enlarged structural diagram of D in

[0028] Fig. 9 yes Figure 4 The enlarged structural diagram at E in FIG.

[0029] In the figure: 1, valve body; 2, connecting water pipe; 3, anti-leakage component; 301, driving motor; 302, gear 1; 303, gear 2; 304, sliding hole; 305, round rod; 306, connecting bent rod; 307, cylinder; 308, extrusion arc plate; 4, leakage detection component; 401, water inlet pipe; 402, water outlet pipe; 403, piston cylinder; 404, piston rod; 405, piston; 406, annular orifice plate; 40 7. Rotating gear; 408. Transmission gear; 409. Ring gear; 410. Detection rod; 411. Push rod; 412. Sensor 1; 413. Sensor 2; 414. Spring 1; 5. Bolt; 6. Reinforcement assembly; 601. Movable cylinder; 602. Sliding plate; 603. Connecting rod; 604. Movable plate; 605. Moving rod; 606. Conversion block; 607. Extrusion rod; 608. Arc plate; 7. Rotating handle. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example: Figure 1-Figure 3 As shown, the present invention provides a technical solution, a water valve with a leakage self-locking function, characterized in that: the water valve with a leakage self-locking function comprises a valve body 1, a rotating handle 7 is installed on the valve stem of the valve body 1, connecting water pipes 2 are symmetrically installed at both ends of the valve body 1, the valve body 1 and the connecting water pipe 2 are connected by multiple bolts 5, leakage detection components 4 are arranged on both sides of the valve body 1, and an anti-leakage component 3 is arranged at the connection between the connecting water pipe 2 and the valve body 1, and a reinforcement component 6 is arranged above the valve body 1. When the water valve is in use, driven by the water flow, the leakage detection component 4 rotates and monitors the connection between the valve body 1 and the connecting water pipe 2. When leakage occurs at the connection between the valve body 1 and the connecting water pipe 2, the leakage detection component 4 transmits a signal to the anti-leakage component 3, and the anti-leakage component 3 starts to work to reinforce and seal the connection.

[0032] like Figure 2-Figure 5 As shown, the anti-leakage assembly 3 includes a driving motor 301, a gear 1 302, a gear 2 303, a sliding hole 304, a round rod 305, a connecting bent rod 306, a cylinder 307 and an extrusion arc plate 308;

[0033] The end surfaces of both sides of the valve body 1 are installed with a driving motor 301 and a plurality of round rods 305, the output end of the driving motor 301 is installed with a gear 1 302, the end of the valve body 1 close to the water pipe 2 is rotatably installed with a gear 2 303, the gear 1 302 is meshed with the gear 2 303, the gear 2 303 is provided with a plurality of sliding holes 304, and the plurality of round rods 305 pass through the sliding holes 304, and the two ends of the valve body 1 are installed with a plurality of cylinders 307, and the plurality of cylinders 307 are rotatably installed with extrusion arc plates 308, the extrusion arc plates 308 are connected to the gear 2 303 through a connecting bent rod 306, and the connecting bent rod 30 6 are respectively hinged with the gear 2 303 and the extrusion arc plate 308 at both ends. When leakage is detected, the driving motor 301 starts to drive the gear 1 302 at the output end to rotate, and then drives the gear 2 303 meshing therewith to rotate. At this time, the gear 2 303 can drive the extrusion arc plate 308 to rotate through the connecting bent rod 306 during the rotation process to form a shutter effect. By controlling the rotation angle of the gear 1 302, the contraction degree of the multiple extrusion arc plates 308 can be controlled, so that the extrusion arc plates 308 can squeeze and seal the connection between the water pipe 2 and the valve body 1, which can avoid leakage and ensure the stability of the liquid delivery line.

[0034] like Figure 2-Figure 5 and Figure 8-7 As shown, the leakage detection assembly 4 includes a water inlet pipe 401, a water outlet pipe 402, a piston cylinder 403, a piston rod 404, a piston 405, an annular orifice plate 406, a rotating gear 407, a transmission gear 408, a ring gear 409, a detection rod 410, a lever 411, a sensor 1 412, a sensor 2 413 and a spring 1 414;

[0035] Two piston cylinders 403 are symmetrically installed on both sides of the valve body 1, and a piston 405 is slidably installed inside the piston cylinder 403. A piston rod 404 is fixedly installed on the piston 405. A spring 414 is sleeved on the piston rod 404. The spring 414 connects the piston cylinder 403 and the piston 405. The piston cylinder 403 is connected to the valve body 1 through an inlet pipe 401 and an outlet pipe 402. An annular orifice plate 406 is fixedly installed on the end of the piston rod 404 away from the piston 405. A rotating gear 407 is rotatably installed on the valve body 1. A lever 411 is eccentrically mounted on 407, and the lever 411 passes through the hole on the annular orifice plate 406. A ring gear 409 and a transmission gear 408 are rotatably mounted on one side of the two ends of the valve body 1 close to the rotating gear 407. The rotating gear 407 is meshed with the transmission gear 408, and the transmission gear 408 is meshed with the ring gear 409. A detection rod 410 is mounted on the ring gear 409, and a water leakage detector is mounted on the detection rod 410. The water leakage detector is electrically connected to the driving motor 301. When the water valve is working, water flows through the water inlet pipe 40 1 enters the piston cylinder 403, so that the piston 405 drives the piston rod 404 to slide and squeeze the spring 1 414 under the action of the water flow. When the piston 405 approaches the sensor 2 413, the sensor 2 413 transmits a signal to the switch check valve 2 to control the water inlet pipe 401 to be closed. At this time, the liquid in the piston cylinder 403 can be discharged through the water outlet pipe 402. The piston 405 and the piston rod 404 are reset by the spring 1 414, and the sensor 1 412 transmits a signal to the switch check valve 2 to control the water outlet pipe 402 to be closed, so that water can flow into the water inlet pipe 401, allowing the piston 405 to flow into the water inlet pipe 401. The plug 405 and the piston rod 404 move back and forth to realize the reciprocating movement of the piston rod 404, so that the piston rod 404 drives the annular orifice plate 406 to move synchronously, and the annular orifice plate 406 and the lever 411 cooperate to drive the rotating gear 407 to rotate. Through the meshing action of the rotating gear 407 and the transmission gear 408, the transmission gear 408 can drive the annular gear 409 to rotate, so that the annular gear 409 can drive the detection rod 411 to move in a circular trajectory, and the water leakage detector can realize comprehensive monitoring of the connection between the valve body 1 and the connecting water pipe 2.

[0036] A switch check valve 1 is installed in the water inlet pipe 401, a switch check valve 2 is installed in the water outlet pipe 402, and a sensor 1 412 and a sensor 2 413 are installed inside the piston cylinder 403. The sensor 1 412 is electrically connected to the switch check valve 1, and the sensor 2 413 is electrically connected to the switch check valve 2.

[0037] like Figure 1-Figure 3As shown, the reinforcement assembly 6 includes a movable cylinder 601, a sliding plate 602, a connecting rod 603, a movable plate 604, a moving rod 605, a conversion block 606, an extrusion rod 607 and an arc plate 608;

[0038] A movable cylinder 601 is installed in the valve body 1, and a water inlet hole is provided at the bottom of the movable cylinder 601. A sliding plate 602 is slidably installed inside the movable cylinder 601. A through hole is provided on the top of the movable cylinder 601. A through hole is provided on the valve body 1, and the through hole is connected to the through hole. A connecting rod 603 is installed on the side of the sliding plate 602 close to the through hole. The connecting rod 603 passes through the through hole and the through hole and is slidably matched. A movable plate 604 is installed on the connecting rod 603. A plurality of moving rods 605 are installed on the upper surface of the movable plate 604. A conversion block 606 is installed on the plurality of moving rods 605. A movable groove is provided inside the conversion block 606, and an extrusion rod 60 is slidably installed inside the movable groove. 7. One end of the squeezing rod 607 is fixedly connected with an arc plate 608. When the valve is working, water can flow into the movable cylinder 601 through the water inlet hole. The pushing force of the sliding plate 602 by the water pressure can make the sliding plate 602 compress the spring to move upward, and then the transmission member composed of the connecting rod 603, the movable plate 604 and the moving rod 605 can drive the conversion block 606 to move synchronously. When the conversion block 606 moves upward, the round block 6062 on the squeezing rod 607 slides accordingly in the serpentine groove 6061, so that the squeezing rod 607 can drive the arc plate 608 to move toward the sealing gasket, thereby squeezing the sealing gasket, and can realize automatic adjustment of the sealing effect according to the change of water pressure intensity.

[0039] A sealing gasket is installed at the gap between the valve body 1 and the valve stem. A slot hole is opened on the valve body 1, and the arc plate 608 is slidably installed in the slot hole.

[0040] The connecting rod 603 is sleeved with a spring, the spring connects the sliding plate 602 and the movable cylinder 601, and the sealing gasket and the slot are at the same level.

[0041] A serpentine groove 6061 is provided in the conversion block 606, and a round block 6062 is installed on the extrusion rod 607. The round block 6062 is slidably installed in the serpentine groove 6061. The serpentine groove 6061 can be used to make the extrusion rod 607 move horizontally when the conversion block 606 moves upward, driving the arc plate 608 to extrude the sealing gasket.

[0042] The working principle of the present invention is as follows: first, when the water valve is working, water flows into the piston cylinder 403 through the water inlet pipe 401, so that the piston 405 drives the piston rod 404 to slide and squeeze the spring 1 414 under the action of the water flow. When the piston 405 approaches the sensor 2 413, the sensor 2 413 transmits a signal to the switch check valve 2 to control the water inlet pipe 401 to be closed. At this time, the liquid in the piston cylinder 403 can be discharged through the water outlet pipe 402. The piston 405 and the piston rod 404 are close to the sensor 1 412 under the reset of the spring 1 414. The sensor 1 412 transmits a signal to the switch check valve 2 to control the water outlet pipe 402 to be closed. Close, so that water enters the water inlet pipe 401, and the piston 405 and the piston rod 404 move back and forth, so as to realize the reciprocating movement of the piston rod 405, and the piston rod 405 drives the annular orifice plate 406 to move synchronously, and the annular orifice plate 406 and the lever 411 cooperate with each other to drive the rotating gear 407 to rotate, and through the meshing action of the rotating gear 407 and the transmission gear 408, the transmission gear 408 can drive the annular gear 409 to rotate, so that the annular gear 409 can drive the detection rod 411 to move in a circular trajectory, so that the water leakage detector can fully monitor the connection between the valve body 1 and the connecting water pipe 2.

[0043] Secondly, when the leakage detection component 4 detects that the water valve is leaking, the driving motor 301 starts to drive the gear 1 302 at the output end to rotate, and then drives the gear 2 303 meshing with it to rotate. At this time, the gear 2 303 can drive the extrusion arc plate 308 to rotate through the connecting bent rod 306 during the rotation process, forming a shutter effect. By controlling the rotation angle of the gear 1 302, the contraction degree of the multiple extrusion arc plates 308 can be controlled, so that the extrusion arc plate 308 can squeeze and seal the connection between the water pipe 2 and the valve body 1, which can avoid leakage and ensure the stability of the liquid delivery line.

[0044] Finally, water can enter the movable cylinder 601 through the water inlet hole, and the pushing force of the sliding plate 602 through the water pressure can make the sliding plate 602 compress the spring to move upward, and then the transmission member composed of the connecting rod 603, the movable plate 604 and the moving rod 605 can drive the conversion block 606 to move synchronously. When the conversion block 606 moves upward, the round block 6062 on the extrusion rod 607 slides accordingly in the serpentine groove 6061, so that the extrusion rod 607 can drive the arc plate 608 to move toward the sealing gasket, thereby squeezing the sealing gasket, and can realize automatic adjustment of the sealing effect according to the change of water pressure intensity.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A water valve with leakage self-locking function, characterized in that: The water valve with a leakage self-locking function comprises a valve body (1), a rotating handle (7) is installed on the valve stem of the valve body (1), connecting water pipes (2) are symmetrically installed at both ends of the valve body (1), the valve body (1) and the connecting water pipe (2) are connected by a plurality of bolts (5), leakage detection components (4) are arranged on both sides of the valve body (1), a leakage prevention component (3) is arranged at the connection between the connecting water pipe (2) and the valve body (1), and a reinforcement component (6) is arranged above the valve body (1).

2. A water valve with leakage self-locking function according to claim 1, characterized in that: The anti-leakage assembly (3) comprises a driving motor (301), a gear 1 (302), a gear 2 (303), a sliding hole (304), a round rod (305), a connecting curved rod (306), a cylinder (307) and an extruded arc plate (308); A driving motor (301) and a plurality of round rods (305) are mounted on both side end surfaces of the valve body (1); a gear 1 (302) is mounted on the output end of the driving motor (301); a gear 2 (303) is rotatably mounted on the end of the valve body (1) close to the end connected to the water pipe (2); the gear 1 (302) is meshed with the gear 2 (303); a plurality of sliding holes (304) are provided on the gear 2 (303); the plurality of round rods (305) pass through the sliding holes (304); a plurality of cylinders (307) are mounted on both ends of the valve body (1); an extrusion arc plate (308) is rotatably mounted on the plurality of cylinders (307); the extrusion arc plate (308) is connected to the gear 2 (303) via a connecting bent rod (306); and the two ends of the connecting bent rod (306) are respectively hinged to the gear 2 (303) and the extrusion arc plate (308).

3. A water valve with leakage self-locking function according to claim 2, characterized in that: The leakage detection assembly (4) comprises a water inlet pipe (401), a water outlet pipe (402), a piston cylinder (403), a piston rod (404), a piston (405), an annular orifice plate (406), a rotating gear (407), a transmission gear (408), an annular gear (409), a detection rod (410), a lever (411), a sensor 1 (412), a sensor 2 (413) and a spring 1 (414); Two piston cylinders (403) are symmetrically mounted on both sides of the valve body (1). A piston (405) is slidably mounted inside the piston cylinder (403). A piston rod (404) is fixedly mounted on the piston (405). A spring (414) is sleeved on the piston rod (404). The spring (414) connects the piston cylinder (403) and the piston (405). The piston cylinder (403) is connected to the valve body (1) via a water inlet pipe (401) and a water outlet pipe (402). An annular orifice plate (406) is fixedly mounted on the end of the piston rod (404) away from the piston (405). A rotating gear is rotatably mounted on the valve body (1). (407), a lever (411) is eccentrically mounted on the rotating gear (407), and the lever (411) passes through a hole on the annular orifice plate (406). An annular gear (409) and a transmission gear (408) are rotatably mounted on one side of the two ends of the valve body (1) close to the rotating gear (407), and the rotating gear (407) is meshed with the transmission gear (408), and the transmission gear (408) is meshed with the annular gear (409). A detection rod (410) is mounted on the annular gear (409), and a water leakage detector is mounted on the detection rod (410), and the water leakage detector is electrically connected to the drive motor (301).

4. A water valve with leakage self-locking function according to claim 3, characterized in that: A switch check valve 1 is installed in the water inlet pipe (401), a switch check valve 2 is installed in the water outlet pipe (402), and a sensor 1 (412) and a sensor 2 (413) are installed inside the piston cylinder (403). The sensor 1 (412) is electrically connected to the switch check valve 1, and the sensor 2 (413) is electrically connected to the switch check valve 2.

5. A water valve with leakage self-locking function according to claim 4, characterized in that: The reinforcement assembly (6) comprises a movable cylinder (601), a sliding plate (602), a connecting rod (603), a movable plate (604), a moving rod (605), a conversion block (606), an extrusion rod (607) and an arc plate (608); A movable cylinder (601) is installed in the valve body (1), a water inlet hole is provided at the bottom of the movable cylinder (601), a sliding plate (602) is slidably installed inside the movable cylinder (601), a through hole is provided at the top of the movable cylinder (601), a through hole is provided on the valve body (1), the through hole is connected to the through hole, a connecting rod (603) is installed on the side of the sliding plate (602) close to the through hole, the connecting rod (603) passes through the through hole and the through hole and is slidably matched, a movable plate (604) is installed on the connecting rod (603), a plurality of moving rods (605) are installed on the upper surface of the movable plate (604), a conversion block (606) is installed on the plurality of moving rods (605), a movable groove is provided inside the conversion block (606), an extrusion rod (607) is slidably installed inside the movable groove, and one end of the extrusion rod (607) is fixedly connected to an arc plate (608).

6. A water valve with leakage self-locking function according to claim 5, characterized in that: A sealing gasket is installed at the gap between the valve body (1) and the valve stem. A slot hole is provided on the valve body (1), and the arc plate (608) is slidably installed in the slot hole.

7. The water valve with leakage self-locking function according to claim 5, characterized in that: The connecting rod (603) is sleeved with a spring, the spring connects the sliding plate (602) and the movable cylinder (601), and the sealing pad is at the same level as the slot hole.

8. The water valve with leakage self-locking function according to claim 5, characterized in that: The conversion block (606) is provided with a serpentine groove (6061), and a round block (6062) is installed on the extrusion rod (607), and the round block (6062) is slidably installed in the serpentine groove (6061).

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