A regulating valve with protective function

Abstract

This invention discloses a regulating valve with protective functions, relating to the field of regulating valves. It includes a valve body and a connecting mechanism, with the connecting mechanism located at both ends of the valve body. Auxiliary mechanisms are provided at both ends of the valve body, and cleaning mechanisms are provided at both ends of the valve body's interior. A drain mechanism is provided at the bottom of both ends of the valve body. This invention employs a structural design that separates the valve body from the connecting flange, creating a non-rigid connection. Furthermore, a moving ring and an air bladder provide cushioning, effectively preventing vibrations generated by liquid flowing through the pipeline from being transmitted to the valve body. Simultaneously, the water flow power drives a turbine to rotate the filter structure, which, in conjunction with a cleaning plate, automatically cleans scale and other impurities adhering to the filter structure surface, preventing impurity accumulation from affecting equipment operation. Moreover, the valve stem's movement is linked to the drain mechanism, achieving automatic switching between the inlet and outlet flow, collecting and discharging impurities while avoiding water waste during the draining process.

Description

Technical Field

[0001] This invention relates to the field of control valves, specifically a control valve with protective functions. Background Technology

[0002] As a core actuator in industrial automation control systems, regulating valves are widely used in many fields such as petrochemicals, power energy, metallurgy and mining, and water supply and drainage. Their main function is to adjust parameters such as flow rate, pressure, and temperature of the medium by receiving control signals, thereby ensuring the stable operation and precise control of industrial production processes.

[0003] In practical applications, control valves are usually fixedly connected to upstream and downstream pipelines through flanges, threads, or other connection methods to form a complete fluid transport channel. During long-term operation, the water in the pipelines at both ends will generate certain fluid vibrations during the flow process. These vibrations will be transmitted to the connection between the control valve and the pipeline through the pipeline. Long-term vibration will cause the seals at the connection to age and loosen, which in turn will lead to a decrease in the sealing performance of the connection between the control valve and the pipeline.

[0004] In existing control valves, the flow of liquid in the pipeline, especially at high speeds or in turbulent conditions, can cause vibrations in the pipeline itself. These vibrations can be superimposed on the vibrations generated by the control valve itself, potentially leading to liquid leakage. Furthermore, long-term vibrations can also affect the control valve itself. Moreover, after prolonged operation, scale and other impurities in the water can easily accumulate inside the control valve, which, if not cleaned, will also affect its service life. Summary of the Invention

[0005] Based on this, the purpose of this invention is to provide a regulating valve with protective function to solve the technical problems that when the regulating valve is working, the flow of liquid in the pipeline will cause vibration of the pipeline itself, which may lead to liquid leakage. Furthermore, long-term vibration will also affect the regulating valve itself, and after long-term operation, impurities such as scale in the water will also affect the service life of the regulating valve.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a regulating valve with protective function, comprising a valve body and a connecting mechanism, wherein the connecting mechanism is located at both ends of the valve body, auxiliary mechanisms are provided at both ends of the valve body, cleaning mechanisms are provided at both ends of the valve body, and draining mechanisms are provided at the bottom of both ends of the valve body. The connecting mechanism includes a connecting flange, a movable ring, an inner tube, and an air bladder, wherein the movable ring is movably installed at both ends of the valve body, and the other end of the movable ring is movably connected to the connecting flange. The inner tube is located inside the valve body and the connecting flange, and the connecting flange is movably connected to the valve body through the inner tube and the movable ring. An air bladder is fixedly installed inside the valve body, and the air bladder is located between the auxiliary mechanism and the movable ring. The auxiliary mechanism includes a fixed tube and a movable component, wherein the fixed tube is fixedly installed at the top of the valve body, one end of the movable component is fixedly installed on the outer wall of the valve stem inside the valve body, and the other end of the movable component slides inside the fixed tube.

[0007] By adopting the above technical solution, this invention employs a structural design that separates the valve body and connecting flange of the regulating valve, with a non-rigid connection between the two. Furthermore, the use of a moving ring and air bladder for buffering effectively prevents vibrations generated by the liquid flowing through the pipeline from being transmitted to the valve body. Simultaneously, the water flow power drives a turbine to rotate the filter structure, which, in conjunction with a cleaning plate, automatically cleans scale and other impurities adhering to the surface of the filter structure, preventing impurity accumulation from affecting equipment operation. Moreover, the valve stem's movement is linked to the sewage discharge mechanism, achieving automatic switching between the inlet and outlet flow. This not only collects and discharges impurities but also avoids water waste during sewage discharge. This solves the technical problem that during operation, the flow of liquid in the pipeline causes vibration, which may lead to leakage, and long-term vibration can affect the regulating valve itself. Additionally, after prolonged operation, scale and other impurities in the water can also affect the service life of the regulating valve.

[0008] Furthermore, the cleaning mechanism includes a filter assembly, a turbine, and a fixing rod, wherein the filter assembly is rotatably installed inside the valve body, the fixing rod is fixedly installed on one side of the filter assembly, and the filter assembly is fixedly connected to the turbine through an auxiliary mechanism, and the turbine is rotatably installed inside the valve body. The cleaning mechanism also includes a cleaning plate, wherein the cleaning plate is fixedly installed inside the valve body, and the cleaning plate is located on one side of the filter assembly, and the cleaning plate serves to clean the outer wall of the filter assembly.

[0009] By adopting the above technical solution, after the water flows through the turbine, the water passes through its blades and drives the turbine to rotate. When the turbine rotates, it also drives the filter assembly to rotate. A cleaning brush is set at the contact position between the cleaning plate and the filter assembly. Therefore, when the turbine and the filter assembly rotate inside the valve body, the filter assembly will have one side of its surface cleaned by the cleaning plate. When the water passes through the filter assembly, the impurities contained inside will be filtered onto one side of the filter assembly. Therefore, when the filter assembly rotates, the impurities will be cleaned up and remain on one side of the filter assembly.

[0010] Furthermore, the auxiliary mechanism also includes a movable plate and a sliding crank, wherein the movable plate is rotatably mounted on the inner bottom end of the fixed tube, the sliding crank is slidably mounted inside the valve body, and one end of the sliding crank is located on one side of the movable plate. The auxiliary mechanism also includes a spring and a sealing plug, wherein the spring is located on the outer wall of the sliding crank, and the sliding crank is elastically connected to the valve body through the spring. The sealing plug is fixedly mounted on the outer wall of the sliding crank, and the sealing plug serves to keep the inside of the fixed tube sealed.

[0011] By adopting the above technical solution, when the valve stem descends, it lowers along with the moving part. After the moving part descends a certain distance, it will press against the moving plate, causing the moving plate to rotate passively. After the moving plate rotates passively, it will press against the sliding crank, thus causing the sliding crank to slide inside the valve body. A sealing plug is set on the outer wall of the sliding crank to ensure sufficient sealing inside the fixed tube. At the same time, a spring is installed between the sliding crank and the valve body. Therefore, after the sliding crank slides, it will compress the spring and store energy.

[0012] Furthermore, the sewage discharge mechanism includes a sewage discharge chamber, a sewage discharge port, and a water inlet. The sewage discharge chamber is fixedly installed at the bottom of both ends of the valve body. The sewage discharge port is located at the top of the sewage discharge chamber and is located inside the valve body. The water inlet is located at the bottom of the sewage discharge chamber and is connected to an external sewage discharge pipe.

[0013] By adopting the above technical solution, the impurities remaining on one side of the filter component will be carried by water through the flow chamber into the water inlet, and then enter the sewage discharge chamber through the water inlet.

[0014] Furthermore, a movable plug is movably connected inside the sewage discharge chamber. Two sets of connecting rods are movably installed on the top of the movable plug, and the movable plug is movably connected to the sliding crank rod through the connecting rods. A support frame is fixedly installed inside the sewage discharge chamber, and the movable plug is slidably connected to the sewage discharge chamber through the support frame. A flow cavity is opened inside the valve body, and the sewage discharge chamber is connected to the inside of the valve body through the flow cavity. Both the upper and lower ends of the movable plug are provided with inclined surfaces. The diameter of the movable plug matches the diameter of the water inlet and the sewage outlet, and the movable plug serves to block the water inlet and the sewage outlet.

[0015] By adopting the above technical solution, after the sliding crank slides, it will simultaneously drive the movable plug through the connecting rod, causing the movable plug to slide up and down inside the sewage chamber. The movable plug is initially in a state of blocking the water inlet, which can ensure that water can pass through the valve body without flowing out when the valve body is in an open state. However, when the valve stem descends and the valve body is in a closed state, the movable plug will descend inside the sewage chamber under the action of the sliding crank, thereby opening the water inlet.

[0016] In summary, the present invention has the following main advantages: By employing a structural design that separates the valve body from the connecting flange of the regulating valve, with a non-rigid connection between the two, and using a moving ring and air bladder for buffering, the present invention effectively prevents vibrations generated by the liquid flowing through the pipeline from being transmitted to the valve body. Simultaneously, the water flow power drives the turbine to rotate the filter structure, which, in conjunction with the cleaning plate, automatically cleans the scale and other impurities adhering to the surface of the filter structure, preventing the accumulation of impurities from affecting equipment operation. Furthermore, the valve stem's movement is linked with the sewage discharge mechanism, achieving automatic switching between the inlet and outlet flow. This not only collects and discharges impurities but also avoids water waste during sewage discharge. The invention solves the technical problem that when the liquid flows through the pipeline during operation, vibrations in the pipeline may cause leakage, and long-term vibration can affect the regulating valve itself. Additionally, after prolonged operation, scale and other impurities in the water can also affect the service life of the regulating valve. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 For the present invention Figure 2 Enlarged view of point A;

[0020] Figure 4 This is a schematic diagram of the structure of some parts of the present invention;

[0021] Figure 5 For the present invention Figure 4 Enlarged view of point B;

[0022] Figure 6 For the present invention Figure 4 Enlarged view of point C;

[0023] Figure 7 This is a cross-sectional view of a portion of a part of the present invention;

[0024] Figure 8 For the present invention Figure 7 Enlarged view of point D;

[0025] Figure 9 This is a cross-sectional view of a portion of a part of the present invention.

[0026] In the diagram: 1. Valve body; 2. Connecting mechanism; 201. Connecting flange; 202. Moving ring; 203. Inner pipe; 204. Airbag; 3. Auxiliary mechanism; 301. Fixed pipe; 302. Moving part; 303. Moving plate; 304. Sliding crank; 305. Spring; 306. Connecting rod; 307. Sealing plug; 4. Cleaning mechanism; 401. Filter assembly; 402. Turbine; 403. Fixed rod; 404. Cleaning plate; 5. Sewage discharge mechanism; 501. Sewage discharge chamber; 502. Moving plug; 503. Sewage discharge port; 504. Water inlet; 505. Support frame; 6. Flow chamber. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The embodiments of the present invention will now be described.

[0029] A regulating valve with protective functions, such as Figure 1-9 As shown, it includes a valve body 1 and a connecting mechanism 2. The connecting mechanism 2 is located at both ends of the valve body 1. Auxiliary mechanisms 3 are provided at both ends of the valve body 1. Cleaning mechanisms 4 are provided at both ends inside the valve body 1. Drainage mechanisms 5 are provided at the bottom of both ends of the valve body 1. Users can use external tools and bolts to connect the connecting mechanism 2 to the pipeline. During the installation process, a sealing ring is placed at the connection between the pipeline and the connecting mechanism 2 to ensure that the water in the pipeline does not leak when passing through.

[0030] Furthermore, the connecting mechanism 2 includes a connecting flange 201, a movable ring 202, an inner tube 203, and an air bladder 204. The movable ring 202 is movably installed at both ends of the valve body 1, and the other end of the movable ring 202 is movably connected to the connecting flange 201. The inner tube 203 is located inside the valve body 1 and the connecting flange 201, and the connecting flange 201 is movably connected to the valve body 1 through the inner tube 203 and the movable ring 202. An air bladder 204 is fixedly installed inside the valve body 1, and the air bladder 204 is located between the auxiliary mechanism 3 and the movable ring 202. The two sets of connecting flanges 201... After the valve body 1 is sealed and connected to the pipeline, the bottom of the valve body 1 is then installed to the external fixing frame with bolts, so that the valve body 1 can be fixed. The two sets of connecting flanges 201 are not directly rigidly connected to the valve body 1. A movable ring 202 is installed between the connecting flanges 201 and the valve body 1. In addition, an inner tube 203 made of sealing flexible material is set in the flow pipe inside the valve body 1 to ensure that water can smoothly enter the valve body 1 through the connecting flanges 201, or water can flow from the valve body 1 through the connecting flanges 201 to the delivery pipe.

[0031] Furthermore, the auxiliary mechanism 3 includes a fixed tube 301 and a movable part 302. The fixed tube 301 is fixedly installed on the top of the valve body 1. One end of the movable part 302 is fixedly installed on the outer wall of the valve stem inside the valve body 1, and the other end of the movable part 302 slides inside the fixed tube 301. Since one end of the movable part 302 is fixedly installed on the valve stem inside the valve body 1, when both ends of the valve body 1 can flow, the valve stem and valve core are in the open state. At this time, the movable part 302 is at a high position, so its other end will also be at a high position inside the fixed tube 301.

[0032] In the example, the auxiliary mechanism 3 also includes a movable plate 303 and a sliding crank 304, wherein the movable plate 303 is rotatably mounted on the inner bottom end of the fixed tube 301, the sliding crank 304 is slidably mounted on the inside of the valve body 1, and one end of the sliding crank 304 is located on one side of the movable plate 303. The auxiliary mechanism 3 also includes a spring 305 and a sealing plug 307.

[0033] When the valve stem descends, it lowers along with the movable part 302. After descending a certain distance, the movable part 302 will press against the movable plate 303, causing the movable plate 303 to rotate passively. After the movable plate 303 rotates passively, it will press against the sliding crank 304, causing the sliding crank 304 to slide inside the valve body 1. A sealing plug 307 is provided on the outer wall of the sliding crank 304 to ensure sufficient sealing inside the fixed tube 301. At the same time, a spring 305 is installed between the sliding crank 304 and the valve body 1. Therefore, after the sliding crank 304 slides, it will compress the spring 305 to store energy.

[0034] Furthermore, the spring 305 is located on the outer wall of the sliding crank 304, and the sliding crank 304 is elastically connected to the valve body 1 through the spring 305. The sealing plug 307 is fixedly installed on the outer wall of the sliding crank 304, and the sealing plug 307 serves to keep the inside of the fixed tube 301 sealed.

[0035] In the example, the cleaning mechanism 4 includes a filter assembly 401, a turbine 402, and a fixing rod 403. The filter assembly 401 is rotatably installed inside the valve body 1, and the fixing rod 403 is fixedly installed on one side of the filter assembly 401. The filter assembly 401 is fixedly connected to the turbine 402 through the auxiliary mechanism 3. The turbine 402 is rotatably installed inside the valve body 1. The cleaning mechanism 4 also includes a cleaning plate 404, which is fixedly installed inside the valve body 1 and located on one side of the filter assembly 401. The cleaning plate 404 serves to clean the outer wall of the filter assembly 401.

[0036] When water flows through the turbine 402, the water passes through its blades, causing the turbine 402 to rotate. When the turbine 402 rotates, it also rotates the filter assembly 401. A cleaning brush is provided at the contact point between the cleaning plate 404 and the filter assembly 401. Therefore, when the turbine 402 and the filter assembly 401 rotate inside the valve body 1, the surface of the filter assembly 401 will be cleaned by the cleaning plate 404. When water passes through the filter assembly 401, the impurities contained inside will be filtered onto the surface of the filter assembly 401. Therefore, when the filter assembly 401 rotates, the impurities will be cleaned off and remain on one side of the filter assembly 401.

[0037] In the example, the sewage discharge mechanism 5 includes a sewage discharge chamber 501, a sewage discharge port 503, and a water inlet 504. The sewage discharge chamber 501 is fixedly installed at the bottom of both ends of the valve body 1. The sewage discharge port 503 is opened at the top of the sewage discharge chamber 501 and is located inside the valve body 1. The water inlet 504 is opened at the bottom of the sewage discharge chamber 501 and is connected to the external sewage discharge pipe.

[0038] Impurities that remain on one side of the filter component 401 will be carried by water through the flow chamber 6 into the inlet 504, and then enter the sewage discharge chamber 501 through the inlet 504.

[0039] In the example, the inside of the sewage discharge chamber 501 is movably connected to a movable plug 502. Two sets of connecting rods 306 are movably installed on the top of the movable plug 502. The movable plug 502 is movably connected to the sliding crank rod 304 through the connecting rods 306. Both the upper and lower ends of the movable plug 502 are provided with inclined surfaces. The diameter of the movable plug 502 matches the diameter of the water inlet 504 and the sewage outlet 503. The movable plug 502 serves to block the water inlet 504 and the sewage outlet 503.

[0040] When the sliding crank 304 slides, it will simultaneously drive the movable plug 502 through the connecting rod 306, causing the movable plug 502 to slide up and down inside the sewage chamber 501. The movable plug 502 is initially in a state of blocking the water inlet 504, which can ensure that water can pass through the valve body 1 without flowing out when the valve body 1 is in an open state. However, when the valve rod descends and the valve body 1 is in a closed state, the movable plug 502 will descend inside the sewage chamber 501 under the action of the sliding crank 304, thereby opening the water inlet 504.

[0041] Furthermore, a support frame 505 is fixedly installed inside the sewage discharge chamber 501, and the movable plug 502 is slidably connected to the sewage discharge chamber 501 through the support frame 505. A flow chamber 6 is opened inside the valve body 1, and the sewage discharge chamber 501 is connected to the inside of the valve body 1 through the flow chamber 6.

[0042] The working principle of this invention is as follows: When in use, the regulating valve should be installed on the pipe to be installed. The user can use external tools and bolts to connect the connecting mechanism 2 to the pipe. During the installation process, a sealing ring is placed at the connection between the pipe and the connecting mechanism 2 to ensure that the water in the pipe does not leak when it passes through.

[0043] After sealing the two sets of connecting flanges 201 to the pipeline, the bottom of the valve body 1 is then installed to the external fixing bracket by bolts, so that the valve body 1 can be fixed. The two sets of connecting flanges 201 and the valve body 1 are not directly rigidly connected.

[0044] A movable ring 202 is installed between the connecting flange 201 and the valve body 1, and an inner tube 203 made of a sealing flexible material is installed in the flow pipe inside the valve body 1 to ensure that water can smoothly enter the valve body 1 through the connecting flange 201, or water can flow from the valve body 1 through the connecting flange 201 to the delivery pipe.

[0045] After the connecting mechanism 2 and the valve body 1 are installed, one end of the movable part 302 is fixedly installed on the valve stem inside the valve body 1. Therefore, when the two ends of the valve body 1 can flow, the valve stem and valve core are in the open state. At this time, the movable part 302 is at a high position, so its other end will also be at a high position inside the fixed tube 301.

[0046] When the water enters the valve body 1, it will continuously vibrate during its movement because it is in a continuous flow state. Since the connecting flange 201 and the valve body 1 are not rigidly connected, the vibration generated by the water in the pipeline during its movement will only be transmitted to the connecting flange 201 under the action of the bolts and will not affect the valve body 1.

[0047] At the connection between the connecting flange 201 and the valve body 1, an air bag 204 is installed on one side of the movable ring 202. The air bag 204 is in an uninflated state at this time, thus ensuring that the movable ring 202 has enough room to move between the valve body 1 and the connecting flange 201, so that vibration on the connecting flange 201 can be prevented from being transmitted to the valve body 1.

[0048] When the valve stem and valve core close the inside of the valve body 1, the water flow stops. After the valve stem descends, it will also bring the movable part 302 down with it in the fixed pipe 301. The movable part 302 and the fixed pipe 301 are in a sealed movable connection state. Therefore, when the movable part 302 descends, it can squeeze the gas between the fixed pipe 301 and the valve body 1 into the air bag 204.

[0049] Therefore, the air bladder 204 will inflate, thereby lifting the movable ring 202 so that the movable ring 202 can fit tightly against the connecting flange 201. At this time, the water in the pipeline will stop flowing, and the vibration will also be reduced. The inflating of the air bladder 204 will play a certain buffering role, so the valve body 1 will not be affected.

[0050] When the valve stem and valve core are open, the water flows through the valve body 1 and passes through the cleaning mechanism 4. After the water flows through the turbine 402, the water passes through its blades and will make the turbine 402 rotate. At the center of the turbine 402, it is connected to the filter assembly 401 through the fixing rod 403. Therefore, when the turbine 402 rotates, it will make the filter assembly 401 rotate together.

[0051] A set of cleaning plates 404 are fixedly installed on one side of the filter assembly 401. A cleaning brush for cleaning is provided at the contact position between the cleaning plate 404 and the filter assembly 401. Therefore, when the turbine 402 and the filter assembly 401 rotate inside the valve body 1, the surface of the filter assembly 401 on one side will be cleaned by the cleaning plate 404.

[0052] When water passes through the filter assembly 401, the impurities contained inside it will be filtered onto one side surface of the filter assembly 401. Therefore, when the filter assembly 401 rotates, the impurities will be cleaned up and remain on one side of the filter assembly 401.

[0053] When the valve stem descends, it takes the movable part 302 down with it. A movable plate 303 is installed at the bottom of the inside of the fixed pipe 301. After the movable part 302 descends a certain distance, it will press against the movable plate 303, causing the movable plate 303 to rotate passively.

[0054] Inside the valve body 1, a sliding crank 304 is provided, and one end of the sliding crank 304 is spherical. It is positioned on one side of the movable plate 303. Therefore, after the movable plate 303 is passively rotated, it will press against the sliding crank 304, thereby allowing the sliding crank 304 to slide inside the valve body 1.

[0055] A sealing plug 307 is provided on the outer wall of the sliding crank 304 to ensure sufficient sealing inside the fixed tube 301. At the same time, a spring 305 is installed between the sliding crank 304 and the valve body 1. Therefore, after the sliding crank 304 slides, it will compress the spring 305 to store energy.

[0056] The other end of the sliding crank 304 is equipped with a connecting rod 306. The other ends of both sets of connecting rods 306 are installed on the top of the movable plug 502. Therefore, after the sliding crank 304 slides, it will drive the movable plug 502 through the connecting rod 306, causing the movable plug 502 to slide up and down inside the sewage discharge chamber 501.

[0057] The movable plug 502 is initially in a state of blocking the inlet 504, which can ensure that water can pass through the valve body 1 without flowing out when the valve body 1 is in an open state. However, when the valve stem descends and the valve body 1 is in a closed state, the movable plug 502 will descend inside the drain chamber 501 under the action of the sliding crank 304, thereby opening the inlet 504.

[0058] At this time, the impurities remaining on one side of the filter component 401 will be carried by the water through the flow chamber 6 into the inlet 504, and then enter the drain chamber 501 through the inlet 504. After the movable plug 502 descends, its bottom will block the drain port 503 at the bottom of the drain chamber 501, thereby preventing water from flowing out and avoiding waste.

[0059] When the valve stem rises again, it will bring the movable part 302 up with it. Under the elastic action of the spring 305, the sliding crank 304 will be reset, so that the movable plug 502 will slide upward inside the support frame 505. At this time, the top of the movable plug 502 will block the water inlet 504 again, and the drain port 503 at the bottom of the drain chamber 501 will open. At this time, the impurities inside the drain chamber 501 will flow out of the drain port 503 along with the water inside the drain chamber 501 and go to the drain pipe.

[0060] The above structure can solve the technical problems that when the liquid in the pipeline flows during the operation of the control valve, it will cause the pipeline itself to vibrate, which may lead to liquid leakage. Furthermore, long-term vibration will affect the control valve itself, and after long-term operation, scale and other impurities in the water will also affect the service life of the control valve.

[0061] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A regulating valve with protective function, comprising a valve body (1) and a connecting mechanism (2), characterized in that: The connecting mechanism (2) is located at both ends of the valve body (1), the two ends of the valve body (1) are provided with auxiliary mechanisms (3), the two ends of the valve body (1) are provided with cleaning mechanisms (4), and the bottom of both ends of the valve body (1) is provided with sewage discharge mechanisms (5). The connecting mechanism (2) includes a connecting flange (201), a movable ring (202), an inner tube (203), and an air bladder (204). The movable ring (202) is movably installed at both ends of the valve body (1), and the other end of the movable ring (202) is movably connected to the connecting flange (201). The inner tube (203) is located inside the valve body (1) and the connecting flange (201), and the connecting flange (201) is movably connected to the valve body (1) through the inner tube (203) and the movable ring (202). The valve body (1) is connected to an airbag (204) which is fixedly installed inside the valve body (1). The airbag (204) is located between the auxiliary mechanism (3) and the movable ring (202). The auxiliary mechanism (3) includes a fixed tube (301) and a movable part (302). The fixed tube (301) is fixedly installed on the top of the valve body (1). One end of the movable part (302) is fixedly installed on the outer wall of the valve stem inside the valve body (1), and the other end of the movable part (302) slides inside the fixed tube (301).

2. The regulating valve with protective function according to claim 1, characterized in that: The cleaning mechanism (4) includes a filter assembly (401), a turbine (402), and a fixing rod (403). The filter assembly (401) is rotatably installed inside the valve body (1). The fixing rod (403) is fixedly installed on one side of the filter assembly (401). The filter assembly (401) is fixedly connected to the turbine (402) through an auxiliary mechanism (3). The turbine (402) is rotatably installed inside the valve body (1).

3. The regulating valve with protective function according to claim 2, characterized in that: The cleaning mechanism (4) further includes a cleaning plate (404), wherein the cleaning plate (404) is fixedly installed inside the valve body (1), and the cleaning plate (404) is located on one side of the filter assembly (401), and the cleaning plate (404) plays the role of cleaning the outer wall of the filter assembly (401).

4. The regulating valve with protective function according to claim 1, characterized in that: The auxiliary mechanism (3) further includes a movable plate (303) and a sliding crank (304), wherein the movable plate (303) is rotatably mounted on the bottom of the inside of the fixed tube (301), and the sliding crank (304) is slidably mounted inside the valve body (1), with one end of the sliding crank (304) located on one side of the movable plate (303).

5. The regulating valve with protective function according to claim 4, characterized in that: The auxiliary mechanism (3) further includes a spring (305) and a sealing plug (307), wherein the spring (305) is located on the outer wall of the sliding crank (304), and the sliding crank (304) is elastically connected to the valve body (1) through the spring (305). The sealing plug (307) is fixedly installed on the outer wall of the sliding crank (304), and the sealing plug (307) serves to keep the inside of the fixed tube (301) sealed.

6. The regulating valve with protective function according to claim 1, characterized in that: The sewage discharge mechanism (5) includes a sewage discharge chamber (501), a sewage discharge port (503), and a water inlet (504). The sewage discharge chamber (501) is fixedly installed at the bottom of both ends of the valve body (1). The sewage discharge port (503) is opened at the top of the sewage discharge chamber (501) and is located inside the valve body (1). The water inlet (504) is opened at the bottom of the sewage discharge chamber (501) and is connected to the external sewage discharge pipe.

7. The regulating valve with protective function according to claim 6, characterized in that: The sewage discharge chamber (501) is internally connected to a movable plug (502), and two sets of connecting rods (306) are movably installed on the top of the movable plug (502). The movable plug (502) is movably connected to the sliding crank (304) through the connecting rods (306).

8. The regulating valve with protective function according to claim 7, characterized in that: The sewage discharge chamber (501) is fixedly installed with a support frame (505), and the movable plug (502) is slidably connected to the sewage discharge chamber (501) through the support frame (505).

9. The regulating valve with protective function according to claim 6, characterized in that: The valve body (1) has a flow chamber (6) inside, and the sewage discharge chamber (501) is connected to the inside of the valve body (1) through the flow chamber (6).

10. The regulating valve with protective function according to claim 7, characterized in that: The movable plug (502) has inclined surfaces at both the upper and lower ends. The diameter of the movable plug (502) matches the diameter of the water inlet (504) and the sewage outlet (503). The movable plug (502) serves to block the water inlet (504) and the sewage outlet (503).

Images