Exhaust gate valve with Anti-clogging function

Abstract

The present invention discloses an exhaust gate valve with an anti-clogging function, relating to the technical field of exhaust gate valves. The invention comprises a connecting flange, a valve body, a drive motor, an exhaust assembly, a valve plate assembly, an anti-seepage detection assembly, and a drive gear. The present invention utilizes an eccentric ring on a front valve plate to cause a brush plate contracted between a rear valve plate and the front valve plate to extend outward; under the rotation of a cleaning gear ring, the brush plate is driven to clean dirt and impurities on the inner wall of a cut-off groove; in addition, a cleaning plate on the front valve plate is utilized to clean the bristles of the brush plate, ultimately achieving the purposes of anti-clogging and self-cleaning of the exhaust gate valve. By utilizing the exhaust assembly, air on one side of the valve body assembly is discharged through an exhaust head, and an exhaust float ball is utilized to drive an iron core rod to move, converting changes in the medium liquid level into detectable electrical signals. Through comparison with a preset value, a control system automatically opens the valve plate assembly when the electrical signal reaches a maximum value, thereby achieving the purposes of liquid level monitoring and automatic exhaust.

Description

An exhaust gate valve with anti-clogging function Technical Field

[0001] This invention relates to the field of exhaust gate valve technology, specifically an exhaust gate valve with anti-clogging function. Background Technology

[0002] Gate valves have multiple functions, including shutting off fluid flow, regulating flow rate, and enabling flow diversion and merging. Gate valves fit tightly against their seats, effectively preventing fluid leakage and ensuring the safety of connected equipment. When connected equipment malfunctions or requires maintenance, the rapid closure of the gate valve prevents further fluid flow, avoiding potential accident risks, quickly cutting off hazards, and protecting personnel and equipment. The flexibility of gate valves makes them widely applicable in complex piping systems.

[0003] Although gate valves are highly practical, their function is singular, lacking venting capability. Furthermore, they are prone to blockage during use, especially at the junction of the valve plate and body. This junction often has grooves that easily accumulate dirt and impurities. Excessive dirt and impurities can cause leakage at the valve plate's closure. Currently, there is a lack of effective methods to detect leakage around the valve plate, and the blockages in the grooves often require manual cleaning, which is extremely inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide an exhaust gate valve with anti-clogging function to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an exhaust gate valve with anti-clogging function, comprising a valve body, connecting flanges at both ends of the valve body, a drive motor mounted on the top of the valve body, the output shaft of the drive motor passing through the valve body and mounting a drive gear, the drive gear being rotatably mounted in the valve body, a valve plate assembly slidably mounted in the valve body, the valve plate assembly meshing with the drive gear for transmission, an exhaust assembly mounted in the valve body, an anti-seepage detection assembly mounted in the valve body, the anti-seepage detection assembly being located at the bottom of the valve plate assembly, and the exhaust assembly being located on one side of the valve plate assembly; an exhaust passage is provided on the valve body, an exhaust head is mounted at one end of the exhaust passage, a sealing groove is provided in the valve body, a detection groove is provided in the valve body, a flow interception groove is provided in the valve body, the sealing groove is connected to the exhaust passage, the valve plate assembly is fitted into the flow interception groove, and an electric valve is provided at the bottom of the flow interception groove.

[0006] The valve body contains a control system, which is used to control the entire exhaust gate valve; the valve body also contains a sealing assembly, which is used to seal all components within the valve body.

[0007] When the exhaust valve body needs to be closed, the control system starts the drive motor. The output shaft of the drive motor drives the drive gear to rotate, which in turn drives the sliding gear to rotate. The sliding gear rotates and drives the valve stem to rotate. Since the valve stem is threadedly connected to the sliding gear, and the valve stem cannot slide due to the restriction of the front and rear valve plates, the valve stem converts its rotation into sliding up and down within the valve body. The valve stem drives the entire valve plate assembly to slide down until the valve plate assembly engages with the flow-blocking groove within the valve body, thereby cutting off the flow medium. When it is necessary to open the valve, the control system controls the drive motor to rotate, causing the valve stem to slide upward and disengage the valve plate assembly from the flow-blocking groove, achieving the effect of automatic opening and closing of the valve.

[0008] The valve plate assembly includes a front valve plate and a rear valve plate, which are connected by a connector. A valve stem is mounted on the rear valve plate, and the valve stem is threaded. A sliding gear is threaded on the valve stem and meshes with a drive gear. The sliding gear is rotatably mounted in the valve body, and the valve stem is slidably mounted in the valve body. A cleaning motor is mounted inside the rear valve plate, and a cleaning gear is mounted on the output shaft of the cleaning motor. A cleaning assembly is rotatably mounted between the rear valve plate and the front valve plate, and the cleaning assembly meshes with the cleaning gear. Both the front and rear valve plates are tightly fitted into the throttling groove.

[0009] The cleaning assembly includes a cleaning gear ring with teeth that mesh with a cleaning gear. The cleaning gear ring is rotatably mounted between a front valve plate and a rear valve plate. Several sliding rods are slidably mounted on the cleaning gear ring. A brush plate with bristles is mounted on one end of each sliding rod, and a drive wheel is rotatably mounted on the other end of each sliding rod. A return spring is installed between the sliding rod and the cleaning gear ring.

[0010] The front valve plate is equipped with a cleaning plate, which has brush teeth made of rigid material. The front valve plate is also equipped with an eccentric ring, which is an eccentric circular ring design.

[0011] The control system opens the electric valve at the bottom of the intercepting tank and introduces cleaning fluid into the exhaust valve. The output shaft of the cleaning motor drives the cleaning gear to rotate, which in turn drives the cleaning gear ring to rotate. Under normal conditions, the drive wheel is located at the upper end of the eccentric ring, the return spring naturally extends, and the brush plate is tightly fitted with the cleaning gear ring. The brush plate retracts between the rear valve plate and the front valve plate, without contacting the intercepting tank, and the drive wheel does not compress the eccentric ring. As the cleaning gear ring rotates, the drive wheel gradually turns towards the lower part of the eccentric ring. Due to the eccentricity of the eccentric ring, the drive wheel gradually comes closer to the eccentric ring, causing compression. After being compressed, the drive wheel drives the sliding rod to slide. The sliding rod overcomes the spring force of the return spring and drives the brush plate to extend out of the side of the cleaning gear ring. The brush plate extends and comes into contact with the intercepting tank, thereby cleaning the dirt in the intercepting tank. The system brushes away dirt and impurities. As the drive wheel rotates from the lower end of the eccentric ring back to the upper end with the rotation of the cleaning ring, it loses the squeezing force from the eccentric ring and resets under the action of the return spring. The drive wheel drives the brush plate to reset via the sliding rod. When the brush plate rotates with the cleaning toothed ring to the cleaning plate, the bristles on the brush plate rub against the brush teeth on the cleaning plate, causing impurities and dirt on the bristles and brush teeth to fall off. The fallen impurities and dirt fall into the grooves between the brush plates and are discharged from the electric valve at the bottom of the intercepting tank with rotation and rinsing with the cleaning fluid. This achieves the brushing of the grooves of the intercepting tank and completes the self-cleaning of the brush plate. After brushing, the control system controls the cleaning component to rotate and reset and performs leakage detection. This cycle continues until the leakage detection is qualified, thus achieving the purpose of preventing clogging.

[0012] The seepage prevention detection assembly includes a first rack, a second rack, a detection ball assembly, and a transmission gear. The first rack is slidably installed in the valve body, and a contact rod is installed at the top of the first rack, which is also slidably installed in the valve body. A detection spring is installed at the bottom of the first rack. The transmission gear is rotatably installed in the valve body and meshes with the first rack for transmission. The second rack is slidably installed in the valve body and meshes with the transmission gear for transmission. A limit rod is installed at the top of the second rack, which is slidably connected to the valve body. A limit ring is installed at the top of the limit rod, which is also slidably connected to the valve body. The detection ball assembly is slidably installed in the valve body.

[0013] When the valve plate assembly is in the closed state, the detection spring is in the compressed state.

[0014] The detection ball assembly includes a detection housing, which is slidably connected to the valve body. A detection connecting rod is installed at the top of the detection housing, and a detection float is installed at the top of the detection connecting rod. The detection float is located in the detection groove. A diaphragm is installed inside the detection housing, and a piezoelectric element is installed between the diaphragms. A detection contact is slidably installed on the detection housing.

[0015] The detection contact includes a piston plate, which is slidably installed inside the detection housing. A force transmission plate is installed on the top of the piston plate, which passes through the top of the detection housing and is fitted with a pressure contact. The detection housing and the piston plate are sealed together, and a compressible medium is filled between them.

[0016] The outer diameter of the detection housing is the same as the outer diameter of the limit ring, and the diameter of the pressure contact is smaller than the inner diameter of the limit ring.

[0017] When the valve plate assembly is in the open state, the detection spring naturally extends and drives the first rack to move upward. The contact rod at the top of the first rack extends into the throttling groove. The first rack drives the transmission gear to rotate, and the transmission gear drives the second rack to slide downward. The second rack drives the limiting ring to move downward through the limiting rod, so that the limiting ring contacts the top of the detection housing. Since the diameter of the detection housing is the same as the outer diameter of the limiting ring, the detection housing cannot slide up or down under the downward pressure of the limiting ring. When the medium flows through, the detection float cannot drive the detection ball assembly to rise through buoyancy. When the valve plate assembly is closed, the bottom end of the rear valve plate presses the contact rod downward. The contact rod is pressed and drives the first rack to slide down against the elastic force of the detection spring. The first rack drives the transmission gear to rotate in the opposite direction, and the transmission gear drives the second rack to move upward. The second rack drives the limiting ring to move upward through the limiting rod, so that the detection ball assembly loses the restriction of the limiting ring and can slide upward.

[0018] When the exhaust gate valve accumulates dirt and impurities in the throttling groove due to prolonged use, causing leakage as the valve plate assembly cannot fit tightly into the groove, even if the valve plate assembly is in a sealed state, the medium will still flow out through the gap between the valve plate assembly and the throttling groove. When it flows through the detection groove, it enters the detection groove, where the detection float is lifted by buoyancy. When the leakage exceeds the normal value, the detection float, under the action of buoyancy, drives the entire detection ball assembly to rise. After the detection ball assembly rises to a certain height, the pressure contact on the detection contact passes through the annular hole of the limit ring and connects with the valve. As the detection float rises further, it continues to rise and, through the detection linkage, causes the detection housing to rise. The pressure contact is obstructed and cannot move. At this point, the detection housing slides relative to the detection contact under the upward pulling force of the detection float, causing the compressible medium inside the detection housing to be compressed by the piston plate. The pressure inside the detection housing increases, causing the diaphragm at the bottom of the detection housing to be compressed. The diaphragm compresses the piezoelectric element, which generates an electric charge. The charge is transmitted to the control system through the wire. After receiving the electrical signal, the control system starts the cleaning motor.

[0019] The exhaust assembly includes an induction coil and an iron core rod. The induction coil is installed in the valve body, and the iron core rod is slidably installed in the valve body. A limit head is installed at the top of the iron core rod. The diameter of the limit head is larger than the diameter of the iron core rod. The limit head is used to prevent the iron core rod from falling off the valve body. An exhaust float is installed at the other end of the iron core rod. The exhaust float is located in the sealing groove. The inner diameter of the sealing groove is larger than the inner diameter of the exhaust float.

[0020] When venting of the flowing medium is required, the control system first controls the valve plate assembly to enter the closed state. When the medium flows into the venting gate valve, it is blocked by the front valve plate. As the medium gradually enters, the liquid level on one side of the front valve plate gradually rises. At this time, under the buoyancy of the medium, the venting float gradually rises with the liquid level. Air in the valve body is forced into the sealing groove by the medium. The air enters the venting passage through the gap between the sealing groove and the venting float, and then exits from the venting head through the venting passage. The venting float drives the iron core rod to rise. When the iron core rod passes through the induction coil, an induced electromotive force is generated. The longer the coil, the greater the induced electromotive force. The control system analyzes the length of the iron core rod entering the induction coil by the magnitude of the induced electromotive force, thereby analyzing the height of the medium liquid level. When the air is completely eliminated, the exhaust float just blocks the exhaust channel to prevent the medium from leaking out through the exhaust channel. At the same time, the induced electromotive force is also at its maximum value. The control system compares it with the preset value. When the induced electromotive force is at its maximum value, the valve plate assembly is automatically opened. At this time, the gas-free medium flows out from the exhaust gate valve, thereby achieving the purpose of liquid level monitoring and automatic venting.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. When dirt and impurities accumulate in the intercepting channel, causing the valve plate assembly to fail to fit tightly with the intercepting channel and resulting in leakage, the leakage is detected by the detection ball assembly. The buoyancy of the leakage medium on the detection float is converted into the pressure of the piezoelectric element in the diaphragm, and then the pressure is converted into a monitorable electrical signal. After receiving the electrical signal, the control system performs self-cleaning, thereby realizing automatic leakage detection.

[0023] 2. The eccentric ring on the front valve plate extends the brush plate that is retracted between the rear and front valve plates. With the rotation of the cleaning toothed ring, the brush plate cleans the dirt and impurities in the interception tank wall. At the same time, the cleaning plate on the front valve plate cleans the brush bristles, ultimately achieving the purpose of preventing blockage and self-cleaning of the exhaust gate valve.

[0024] 3. By using the exhaust assembly, air on one side of the valve body assembly is discharged through the exhaust head, and the exhaust float drives the iron core rod to move, converting the change in the liquid level of the medium into a monitorable electrical signal. The control system compares the signal with a preset value, and when the electrical signal is at its maximum value, it automatically opens the valve plate assembly, thereby achieving the purpose of liquid level monitoring and automatic venting.

[0025] 4. The limit ring constrains the detection ball assembly when the gate is open. When the medium flows through, the detection float cannot drive the detection ball assembly to rise by buoyancy, thus locking the detection ball assembly in the detection slot without affecting the flow of the medium. Then, the rear valve plate drives the contact rod to move, which in turn drives the limit ring to move, breaking the constraint on the detection ball assembly and realizing the opening and locking of the detection ball assembly.

[0026] 5. The drive motor drives the drive gear to rotate, and the drive gear drives the sliding gear to rotate. The sliding gear drives the control valve plate assembly to slide up and down, thereby realizing the automatic opening and closing of the entire exhaust gate valve. Attached Figure Description

[0027] Figure 1 is an overall perspective view of the exhaust gate valve of the present invention;

[0028] Figure 2 is a cross-sectional view of the exhaust gate valve of the present invention;

[0029] Figure 3 is a partial enlarged view of region A in Figure 2 of the present invention;

[0030] Figure 4 is a partial enlarged view of region B in Figure 2 of the present invention;

[0031] Figure 5 is a perspective view of the valve plate assembly of the present invention;

[0032] Figure 6 is a front view of the cleaning assembly and front valve plate of the present invention;

[0033] Figure 7 is a perspective view of the cleaning assembly of the present invention;

[0034] Figure 8 is a perspective view of the seepage prevention detection component of the present invention;

[0035] Figure 9 is a perspective view of the detection ball assembly of the present invention;

[0036] Figure 10 is a perspective view of the exhaust assembly of the present invention.

[0037] In the diagram: 1. Connecting flange; 2. Valve body; 3. Drive motor; 4. Exhaust assembly; 5. Valve plate assembly; 6. Leakage detection assembly; 7. Drive gear; 61. Detection spring; 62. First rack; 63. Contact rod; 64. Second rack; 65. Transmission gear; 66. Limit rod; 67. Detection ball assembly; 68. Limit ring; 41. Exhaust float; 42. Iron core rod; 43. Limit head; 44. Induction coil; 51. Rear valve plate; 52. Valve stem; 53. Sliding gear; 54. Front valve plate; 55. Cleaning motor; 56. Cleaning... 57. Gear cleaning assembly; 541. Cleaning plate; 542. Eccentric ring; 571. Cleaning gear ring; 572. Brush plate; 573. Drive wheel; 574. Return spring; 575. Sliding rod; 671. Detection float; 672. Detection connecting rod; 673. Detection housing; 674. Diaphragm; 675. Piezoelectric element; 676. Detection contact; 6761. Pressure contact; 6762. Force transmission plate; 6763. Piston plate; 21. Exhaust head; 22. Exhaust passage; 23. Detection groove; 24. Sealing groove; 25. Cut-off groove. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] As shown in Figures 1-10, the present invention provides a technical solution for an exhaust gate valve with anti-clogging function: It includes a valve body 2, with connecting flanges 1 at both ends. A drive motor 3 is installed at the top of the valve body 2. The output shaft of the drive motor 3 passes through the valve body 2 and is fitted with a drive gear 7. The drive gear 7 is rotatably installed inside the valve body 2. A valve plate assembly 5 is slidably installed inside the valve body 2, meshing with the drive gear 7 for transmission. An exhaust assembly 4 and an anti-seepage detection assembly 6 are installed inside the valve body 2, with the anti-seepage detection assembly 6 located at the bottom of the valve plate assembly 5 and the exhaust assembly 4 located on one side of the valve plate assembly 5. An exhaust passage 22 is provided on the valve body 2, with an exhaust head 21 installed at one end of the exhaust passage 22. A sealing groove 24 and a detection groove 23 are provided inside the valve body 2. A flow interception groove 25 is provided inside the valve body 2, with the sealing groove 24 communicating with the exhaust passage 22. The valve plate assembly 5 is fitted into the flow interception groove 25, and an electric valve is provided at the bottom of the flow interception groove 25.

[0040] The valve body 2 is equipped with a control system, which is used to control the entire exhaust gate valve; the valve body 2 is equipped with a sealing assembly, which is used to seal all components inside the valve body 2.

[0041] The exhaust assembly 4 includes an induction coil 44 and an iron core rod 42. The induction coil 44 is installed inside the valve body 2, and the iron core rod 42 is slidably installed inside the valve body 2. A limit head 43 is installed at the top of the iron core rod 42. The diameter of the limit head 43 is larger than the diameter of the iron core rod 42. The limit head 43 is used to prevent the iron core rod 42 from falling off the valve body 2. An exhaust float 41 is installed at the other end of the iron core rod 42. The exhaust float 41 is located in the sealing groove 24. The inner diameter of the sealing groove 24 is larger than the inner diameter of the exhaust float.

[0042] The seepage prevention detection assembly 6 includes a first rack 62, a second rack 64, a detection ball assembly 67, and a transmission gear 65. The first rack 62 is slidably installed inside the valve body 2. A contact rod 63 is installed at the top of the first rack 62, and the contact rod 63 is slidably installed inside the valve body 2. A detection spring 61 is installed at the bottom of the first rack 62. The transmission gear 65 is rotatably installed inside the valve body 2 and meshes with the first rack 62 for transmission. The second rack 64 is slidably installed inside the valve body 2 and meshes with the transmission gear 65 for transmission. A limit rod 66 is installed at the top of the second rack 64 and is slidably connected to the valve body 2. A limit ring 68 is installed at the top of the limit rod 66 and is slidably connected to the valve body 2. The detection ball assembly 67 is slidably installed inside the valve body 2. When the valve plate assembly 5 is in the closed state, the detection spring 61 is in the compressed state.

[0043] The detection ball assembly 67 includes a detection housing 673, which is slidably connected to the valve body 2. A detection connecting rod 672 is installed at the top of the detection housing 673, and a detection float 671 is installed at the top of the detection connecting rod 672. The detection float 671 is located in the detection groove 23. A diaphragm 674 is installed inside the detection housing 673, and a piezoelectric element 675 is installed between the diaphragms 674. A detection contact 676 is slidably installed on the detection housing 673.

[0044] The detection contact 676 includes a piston plate 6763, which is slidably mounted inside the detection housing 673. A force transmission plate 6762 is mounted on the top of the piston plate 6763, and the force transmission plate 6762 passes through the top of the detection housing 673 and is fitted with a pressure contact 6761. A sealed design is used between the detection housing 673 and the piston plate 6763, and a compressible medium is filled between them. The diameter of the detection housing 673 is the same as the outer diameter of the limiting ring 68, and the diameter of the pressure contact 6761 is smaller than the inner diameter of the limiting ring 68.

[0045] The valve plate assembly 5 includes a front valve plate 54 and a rear valve plate 51. The front valve plate 54 and the rear valve plate 51 are connected by a connector. A valve stem 52 is installed on the rear valve plate 51. The valve stem 52 is threaded and a sliding gear 53 is threaded on the valve stem 52. The sliding gear 53 meshes with the drive gear 7 for transmission. The sliding gear 53 is rotatably installed in the valve body 2. The valve stem 52 is slidably installed in the valve body 2. A cleaning motor 55 is installed in the rear valve plate 51. A cleaning gear 56 is installed on the output shaft of the cleaning motor 55. A cleaning assembly 57 is rotatably installed between the rear valve plate 51 and the front valve plate 54. The cleaning assembly 57 meshes with the cleaning gear 56 for transmission. Both the front valve plate 54 and the rear valve plate 51 are tightly fitted into the intercepting groove 25.

[0046] The cleaning assembly 57 includes a cleaning gear ring 571 with teeth. The cleaning gear ring 571 is driven by meshing with the cleaning gear 56 through the teeth. The cleaning gear ring 571 is rotatably mounted between the front valve plate 54 and the rear valve plate 51. Several sliding rods 575 are slidably mounted on the cleaning gear ring 571. A brush plate 572 is mounted on one end of the sliding rod 575 and has bristles. A transmission wheel 573 is rotatably mounted on the other end of the sliding rod 575. A return spring 574 is installed between the sliding rod 575 and the cleaning gear ring 571.

[0047] The front valve plate 54 is provided with a cleaning plate 541, the cleaning plate 541 is provided with brush teeth, the brush teeth are made of rigid material, and the front valve plate 54 is provided with an eccentric ring 542, the eccentric ring 542 is an eccentric circular ring design.

[0048] The working principle of this invention is as follows: When the exhaust valve body 2 needs to be closed, the control system turns on the drive motor 3. The output shaft of the drive motor 3 drives the drive gear 7 to rotate, the drive gear 7 drives the sliding gear 53 to rotate, and the sliding gear 53 rotates and drives the valve stem 52 to rotate. Since the valve stem 52 is threadedly connected to the sliding gear 53, and the valve stem 52 cannot slide under the restriction of the front valve plate 54 and the rear valve plate 51, the valve stem 52 converts the rotation into sliding up and down in the valve body 2. The valve stem 52 drives the entire valve plate assembly 5 to slide down until the valve plate assembly 5 is engaged with the intercepting groove 25 in the valve body 2, thereby achieving the interception of the flowing medium. When it is necessary to open the valve, the control system controls the drive motor 3 to rotate, thereby causing the valve stem 52 to slide upward, driving the valve plate assembly 5 to disengage from the intercepting groove 25, thus achieving the effect of automatic opening and closing of the valve.

[0049] When it is necessary to vent or discharge the medium flowing through it, the control system first controls the valve plate assembly 5 to enter the closed state. When the medium flows into the exhaust gate valve, it is blocked by the front valve plate 54. As the medium gradually enters, the liquid level of the medium on one side of the front valve plate 54 gradually rises. At this time, under the buoyancy of the medium, the exhaust float 41 gradually rises with the liquid level. The air in the valve body 2 is squeezed into the sealing groove 24 by the medium. The air enters the exhaust passage 22 from the gap between the sealing groove 24 and the exhaust float 41, and then is discharged from the exhaust head 21 through the exhaust passage 22. The exhaust float 41 drives the iron core rod 42 to rise. When the iron core rod 42 passes through the induction coil 44, it generates an induced electromotive force. The longer the core rod 42 passes through the induction coil 44, the greater the induced electromotive force. The control system analyzes the length of the core rod 42 entering the induction coil 44 by the magnitude of the induced electromotive force, thereby analyzing the height of the medium liquid level. When the air is completely discharged, the exhaust float 41 just blocks the exhaust channel 22 to prevent the medium from seeping out through the exhaust channel 22. At the same time, the induced electromotive force is also at its maximum value. The control system compares it with the preset value. When the induced electromotive force is at its maximum value, the valve plate assembly 5 is automatically opened. At this time, the gas-free medium flows out from the exhaust gate valve, thereby achieving the purpose of liquid level monitoring and automatic venting.

[0050] When the valve plate assembly 5 is in the open state, the detection spring 61 naturally extends, causing the first rack 62 to move upward. The contact rod 63 at the top of the first rack 62 extends into the throttling groove 25. The first rack 62 drives the transmission gear 65 to rotate, and the transmission gear 65 drives the second rack 64 to slide downward. The second rack 64 drives the limiting ring 68 to move downward through the limiting rod 66, so that the limiting ring 68 contacts the top of the detection housing 673. Since the diameter of the detection housing 673 is the same as the outer diameter of the limiting ring 68, the detection housing 673 does not move under the downward pressure of the limiting ring 68. When the medium flows through the valve plate assembly 5, the detection float 671 cannot lift the detection ball assembly 67 by buoyancy. When the valve plate assembly 5 is closed, the bottom end of the rear valve plate 51 presses the contact rod 63 downward. The contact rod 63 is pressed and drives the first rack 62 to overcome the elastic force of the detection spring 61 and slide down. The first rack 62 drives the transmission gear 65 to rotate in the opposite direction. The transmission gear 65 drives the second rack 64 to move upward. The second rack 64 drives the limit ring 68 to move upward through the limit rod 66, so that the detection ball assembly 67 loses the restriction of the limit ring 68 and can slide upward.

[0051] When the exhaust gate valve accumulates dirt and impurities in the intercepting groove 25 due to prolonged use, causing leakage as the valve plate assembly 5 cannot fit tightly with the intercepting groove 25, even if the valve plate assembly 5 is in a sealed state, the medium will still flow out from the gap between the valve plate assembly 5 and the intercepting groove 25. When it flows through the detection groove 23, it will enter the detection groove 23. The detection float 671 in the detection groove 23 will be lifted by buoyancy. When the leakage exceeds the normal value, the detection float 671 will drive the entire detection ball assembly 67 to rise under the action of buoyancy. After the detection ball assembly 67 rises to a certain height, the pressure contact 6761 on the detection contact 676 passes through the annular hole of the limit ring 68 and contacts the valve plate. As the detection float rises, the medium will continue to flow. As ball 671 rises further, the detection float 671 continues to rise, and through the detection linkage 672, it drives the detection housing 673 to rise. The pressure contact 6761 is obstructed and cannot move. At this time, under the upward pulling force of the detection float 671, the detection housing 673 slides relative to the detection contact 676, causing the compressible medium inside the detection housing 673 to be compressed by the piston plate 6763. The pressure inside the detection housing 673 increases, causing the diaphragm 674 at the bottom of the detection housing 673 to be compressed. The diaphragm 674 compresses the piezoelectric element 675, and the piezoelectric element 675 generates an electric charge. The charge is transmitted to the control system through the wire. After receiving the electrical signal, the control system starts the cleaning motor 55.

[0052] The control system opens the electric valve at the bottom of the intercepting trough 25 and introduces cleaning fluid into the exhaust gate valve. The output shaft of the cleaning motor 55 drives the cleaning gear 56 to rotate, which in turn drives the cleaning gear ring 571 to rotate. Under normal conditions, the transmission wheel 573 is located at the upper end of the eccentric ring 542, the return spring 574 naturally extends, and the brush plate 572 is tightly fitted with the cleaning gear ring 571. The brush plate 572 retracts between the rear valve plate and the front valve plate and does not contact the intercepting trough 25. The drive wheel 573 does not compress the eccentric ring 542. As the cleaning gear ring 571 rotates, the drive wheel 573 gradually turns towards the underside of the eccentric ring 542. Due to the eccentricity of the eccentric ring 542, the drive wheel 573 gradually comes into contact with the eccentric ring 542, causing compression. After being compressed, the drive wheel 573 drives the sliding rod 575 to slide. The sliding rod 575 overcomes the elastic force of the return spring 574 and drives the brush plate 572 to extend out of the side of the cleaning gear ring 571. The brush plate 572 extends out and interacts with the intercepting groove 25. The brush plate 572 comes into contact with the cleaning ring, thus scrubbing away dirt and impurities in the intercepting tank 25. When the drive wheel 573 rotates from the lower end to the upper end of the eccentric ring 542 as the cleaning ring rotates, the drive wheel 573 loses the squeezing force from the eccentric ring 542 and resets under the elastic force of the return spring 574. The drive wheel 573 drives the brush plate 572 to reset via the sliding rod 575. When the brush plate 572 rotates with the cleaning toothed ring 571 to the cleaning plate 541, the bristles on the brush plate 572 come into contact with the cleaning plate 541. The brush teeth rub against each other, causing impurities and dirt on the bristles and brush teeth to fall off. The fallen impurities and dirt fall into the grooves between the brush plates 572. With rotation and the rinsing of the cleaning fluid, they are discharged from the electric valve at the bottom of the intercepting groove 25, thereby achieving the cleaning of the grooves of the intercepting groove 25 and completing the self-cleaning of the brush plates 572. After cleaning, the control system controls the cleaning component 57 to rotate and reset, and performs leakage detection. This cycle continues until the leakage detection is qualified, thereby achieving the purpose of preventing clogging.

[0053] It will be apparent to those skilled in the art that the present 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 its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An exhaust gate valve with anti-clogging function, characterized in that: The exhaust gate valve includes a valve body (2), with connecting flanges (1) at both ends. A drive motor (3) is installed at the top of the valve body (2). The output shaft of the drive motor (3) passes through the valve body (2) and is fitted with a drive gear (7). The drive gear (7) is rotatably mounted inside the valve body (2). A valve plate assembly (5) is slidably installed inside the valve body (2). The valve plate assembly (5) meshes with the drive gear (7) for transmission. An exhaust assembly (4) is installed inside the valve body (2). An anti-seepage detection assembly (6) is installed inside the valve body (2). The leakage detection component (6) is located at the bottom of the valve plate assembly (5), and the exhaust component (4) is located on one side of the valve plate assembly (5); the valve body (2) is provided with an exhaust channel (22), and an exhaust head (21) is installed at one end of the exhaust channel (22); the valve body (2) is provided with a sealing groove (24), the valve body (2) is provided with a detection groove (23), the valve body (2) is provided with a flow interception groove (25), the sealing groove (24) is connected to the exhaust channel (22), the valve plate assembly (5) is fitted with the flow interception groove (25), and an electric valve is provided at the bottom of the flow interception groove (25).

2. The exhaust gate valve with anti-clogging function according to claim 1, characterized in that: The valve plate assembly (5) includes a front valve plate (54) and a rear valve plate (51). The front valve plate (54) and the rear valve plate (51) are connected by a connector. A valve stem (52) is mounted on the rear valve plate (51). The valve stem (52) is threaded, and a sliding gear (53) is threaded onto the valve stem (52). The sliding gear (53) meshes with a drive gear (7) for transmission. The sliding gear (53) is rotatably mounted inside the valve body (2). The valve stem (52) is slidably installed in the valve body (2). A cleaning motor (55) is installed in the rear valve plate (51). A cleaning gear (56) is installed on the output shaft of the cleaning motor (55). A cleaning assembly (57) is rotatably installed between the rear valve plate (51) and the front valve plate (54). The cleaning assembly (57) meshes with the cleaning gear (56) for transmission. Both the front valve plate (54) and the rear valve plate (51) are tightly fitted with the intercepting groove (25).

3. The exhaust gate valve with anti-clogging function according to claim 2, characterized in that: The cleaning assembly (57) includes a cleaning gear ring (571) with teeth on it. The cleaning gear ring (571) is driven by meshing with a cleaning gear (56) through the teeth. The cleaning gear ring (571) is rotatably mounted between the front valve plate (54) and the rear valve plate (51). Several sliding rods (575) are slidably mounted on the cleaning gear ring (571). A brush plate (572) is mounted on one end of the sliding rod (575) and has bristles on it. A transmission wheel (573) is rotatably mounted on the other end of the sliding rod (575). A return spring (574) is installed between the sliding rod (575) and the cleaning gear ring (571).

4. The exhaust gate valve with anti-clogging function according to claim 3, characterized in that: The front valve plate (54) is provided with a cleaning plate (541), the cleaning plate (541) is provided with brush teeth, the brush teeth are made of rigid material, and the front valve plate (54) is provided with an eccentric ring (542), the eccentric ring (542) is an eccentric circular ring design.

5. An exhaust gate valve with anti-clogging function according to claim 1, characterized in that: The seepage prevention detection component (6) includes a first rack (62), a second rack (64), a detection ball assembly (67), and a transmission gear (65). The first rack (62) is slidably installed inside the valve body (2). A contact rod (63) is installed at the top of the first rack (62), and the contact rod (63) is slidably installed inside the valve body (2). A detection spring (61) is installed at the bottom of the first rack (62). The transmission gear (65) is rotatably installed inside the valve body (2). The first rack (62) meshes with the second rack (64), which is slidably installed inside the valve body (2). The second rack (64) meshes with the transmission gear (65), and a limit rod (66) is installed at the top of the second rack (64). The limit rod (66) is slidably connected to the valve body (2). A limit ring (68) is installed at the top of the limit rod (66), which is slidably connected to the valve body (2). The detection ball assembly (67) is slidably installed inside the valve body (2).

6. An exhaust gate valve with anti-clogging function according to claim 5, characterized in that: The detection ball assembly (67) includes a detection housing (673), which is slidably connected to the valve body (2). A detection connecting rod (672) is installed at the top of the detection housing (673), and a detection float (671) is installed at the top of the detection connecting rod (672). The detection float (671) is located in the detection groove (23). A diaphragm (674) is installed inside the detection housing (673), and a piezoelectric element (675) is installed between the diaphragms (674). A detection contact (676) is slidably installed on the detection housing (673).

7. An exhaust gate valve with anti-clogging function according to claim 6, characterized in that: The detection contact (676) includes a piston plate (6763), which is slidably installed inside the detection housing (673). A force transmission plate (6762) is installed at the top of the piston plate (6763). The force transmission plate (6762) passes through the top of the detection housing (673) and is equipped with a pressure contact (6761). The detection housing (673) and the piston plate (6763) are sealed together. A compressible medium is filled between the detection housing (673) and the piston plate (6763).

8. An exhaust gate valve with anti-clogging function according to claim 1, characterized in that: The exhaust assembly (4) includes an induction coil (44) and an iron core rod (42). The induction coil (44) is installed inside the valve body (2). The iron core rod (42) is slidably installed inside the valve body (2). A limiting head (43) is installed at the top of the iron core rod (42). The diameter of the limiting head (43) is larger than the diameter of the iron core rod (42). The limiting head (43) is used to prevent the iron core rod (42) from falling off the valve body (2). An exhaust float (41) is installed at the other end of the iron core rod (42). The exhaust float (41) is located inside the sealing groove (24). The inner diameter of the sealing groove (24) is larger than the inner diameter of the exhaust float.

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