State monitoring system, device and method of emergency gate and state adjusting method
By installing monitoring rods and resistance rods on the accident gate, combined with sensors and control terminals, real-time monitoring and adjustment of the gate status can be achieved, solving the safety hazard caused by the broken tailwater accident gate suspension shaft and ensuring the safe operation of the power station.
Patent Information
- Application Number
- CN202510843298.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2025-09-12
AI Technical Summary
In the existing technology, the gate hanging shaft breaks in the tailwater accident, causing the gate to fall, which may cause the channel to be destroyed and affect the safe operation of the pumped storage power station. There is a lack of effective monitoring and adjustment means.
An emergency gate status monitoring system is adopted. By arranging monitoring rods and stop rods in the gate slot, combined with hydraulic hoist, multiple in-position sensors and control terminals, real-time monitoring and adjustment of the gate status are achieved, including fault alarm and leakage detection and reset of the hydraulic hoist.
It realizes real-time status monitoring of the emergency gate, timely alarm and fault handling, ensures the normal opening of the gate, avoids safety hazards caused by the breakage of the suspension shaft, and can automatically reset when the hydraulic gate hoist leaks.
Smart Images
Figure CN120625564A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a state monitoring system, device, method and state adjustment method for an emergency gate, and is applicable to the technical field of water conservancy engineering. Background Art
[0002] Pumped-storage power stations are typically equipped with tailwater emergency gates. During normal pumped-storage power generation, if the suspension shaft connecting the tailwater emergency gate to the hoist accidentally breaks, the gate could fall and block the passageway, potentially causing the gate to be destroyed and significantly impacting the pumped-storage power station. To ensure the safe operation of the generator set, a gate accidental fall monitoring device must be installed on the tailwater emergency gate cover. Summary of the Invention
[0003] The technical problem to be solved by the present invention is: In order to solve the above technical problems, the present invention provides a state monitoring system, device, method and state adjustment method for an emergency gate.
[0004] The technical solution adopted by the present invention is: a state monitoring system for an emergency gate, wherein the emergency gate has a gate slot, a gate leaf is arranged in the gate slot, and a hydraulic hoist is arranged above the gate slot. The hydraulic hoist is connected to the gate leaf and has: The stopper is installed on the gate leaf and arranged along the moving direction of the gate leaf; The guide frame is arranged above the gate slot, and a monitoring rod arranged along the moving direction of the gate leaf is installed on the guide frame. The monitoring rod can move along the moving direction of the gate leaf on the guide frame, and the lower end of the monitoring rod extends into the gate slot and can contact the top of the push rod. When the gate is opened and the gate leaf rises, the push rod can press against the monitoring rod and drive the monitoring rod to move upward. A first in-position sensor and a second in-position sensor are provided on the guide frame from top to bottom at a position corresponding to the monitoring rod. When the gate is fully opened, the monitoring rod moves to a position corresponding to the first in-position sensor. When the monitoring rod moves to a position corresponding to the first in-position sensor or the second in-position sensor in the guide frame, the first in-position sensor or the second in-position sensor can obtain a corresponding in-position signal; The control terminal, the hydraulic gate hoist, the first in-position sensor and the second in-position sensor are all communicatively connected to the control terminal. The control terminal can control the operation of the hydraulic gate hoist. The control terminal can receive in-position signals from the first in-position sensor and the second in-position sensor. The control terminal can determine that the gate is in an open state when it sequentially receives in-position signals from the second in-position sensor and the first in-position sensor. The control terminal can determine that the gate is in a fault state when it receives in-position signals from the second in-position sensor and the first in-position sensor again after sequentially receiving in-position signals from the second in-position sensor and the first in-position sensor. The alarm is connected to the control terminal for communication. When the control terminal determines that the gate is in a fault state, the alarm can receive the alarm signal from the control terminal and issue an alarm.
[0005] A third in-place sensor is provided on the guide frame at a position above the first in-place sensor. The third in-place sensor is communicatively connected to the control terminal. When the hydraulic hoist is fully retracted and the gate leaf moves to the highest position, the monitoring rod moves to a position corresponding to the third in-place sensor. The control terminal can determine that the hydraulic hoist has leaked when the gate is fully opened and the monitoring rod has not moved to a position corresponding to the first in-place sensor. When the hydraulic hoist leaks, the control terminal can control the hydraulic hoist to contract so that the monitoring rod moves to a position corresponding to the third in-place sensor, and then control the hydraulic hoist to extend and drive the monitoring rod to move downward to a position corresponding to the first in-place sensor.
[0006] A fourth in-position sensor is provided on the guide frame below the second in-position sensor. The fourth in-position sensor is communicatively connected to the control terminal. When the monitoring rod moves to the position corresponding to the fourth in-position sensor, the fourth in-position sensor can obtain the corresponding in-position signal and send it to the control terminal.
[0007] A state monitoring device for an emergency gate, using the above-mentioned state monitoring system for an emergency gate, is characterized by: The frame is installed on the gate slot, and the guide frame is installed on the frame; The touch rod is installed on the monitoring rod. When the touch rod moves with the monitoring rod to the position corresponding to each in-place sensor, the touch rod can contact the in-place sensor. The counterweight is connected to the guide frame through a pulley set; The sealing structure is arranged on the gate slot at a position corresponding to the monitoring rod; The pulley group includes a movable pulley installed at the top of the monitoring rod, a first fixed pulley installed at the bottom of the frame and a second fixed pulley installed at the top of the frame. The traction rope at the top of the counterweight block passes through the second fixed pulley, the first fixed pulley and the movable pulley in sequence and is connected to the guide frame.
[0008] The sealing structure comprises a guide sleeve fixedly mounted on the gate slot by bolts, the monitoring rod can move in the guide sleeve, and a sealing ring and a dust ring are arranged on the inner wall of the guide sleeve.
[0009] A rubber pad is provided on the frame below the counterweight.
[0010] A method for monitoring the state of an emergency gate, using the above-mentioned system for monitoring the state of an emergency gate, is characterized by: After the control terminal receives the gate opening signal, it controls the hydraulic hoist to operate, and the hydraulic hoist drives the gate leaf to move upward; The push rod passes through the fourth in-position sensor, the second in-position sensor, and the first in-position sensor in sequence. The fourth in-position sensor, the second in-position sensor, and the first in-position sensor obtain in-position signals in sequence and send the signals to the control terminal. The control terminal determines that the gate is opened normally. When the gate fails in the open state and the gate leaf falls off, the first sensor passes through the second in-place sensor and the fourth in-place sensor in turn. The second in-place sensor and the fourth in-place sensor obtain the in-place signal in turn and send the signal to the control terminal. The control terminal determines that the gate has failed, and the control terminal sends an alarm signal to the alarm, which sounds an alarm.
[0011] A method for adjusting an emergency gate, using the above-mentioned state monitoring system for an emergency gate, is characterized by: After the control terminal receives the gate opening signal, it controls the hydraulic hoist to operate, and the hydraulic hoist drives the gate leaf to move upward; The push rod passes through the fourth in-position sensor and the second in-position sensor in sequence. The fourth in-position sensor and the second in-position sensor obtain in-position signals in sequence and send the signals to the control terminal. The control terminal determines that the gate opening is abnormal. The control terminal controls the hydraulic hoist to continue running, drives the gate leaf to move up to the highest position, and moves the lever to the position corresponding to the third in-position sensor. The third in-position sensor obtains the in-position signal and sends the signal to the control terminal, which controls the hydraulic hoist to stop running. The control terminal controls the operation of the hydraulic hoist and drives the gate leaf to move downward. When the stopper moves to the position corresponding to the first in-position sensor, the first in-position sensor obtains an in-position signal and sends the signal to the control terminal. The control terminal determines the operation amount of the hydraulic hoist from the gate leaf at the bottom of the gate to the position corresponding to the stopper and the third in-position sensor and from the position corresponding to the stopper and the third in-position sensor to the position corresponding to the stopper and the first in-position sensor based on the adjustment amount of the hydraulic hoist from the gate leaf at the bottom of the gate to the position corresponding to the stopper and the third in-position sensor; After the control terminal receives the gate opening signal, it controls the operation of the hydraulic hoist according to the adjusted operating volume.
[0012] The beneficial effects of the present invention are as follows: the present invention installs a push rod on the gate leaf and installs a monitoring rod on the gate slot at a position corresponding to the push rod, so that when the hydraulic hoist controls the gate leaf to move up and down, it can drive the push rod to move up and down synchronously. When the gate is opened and the push rod moves upward, the push rod moves upward against the monitoring rod. When the monitoring rod moves upward to the corresponding position of the touch rod on the monitoring rod and the first in-position sensor on the guide frame, the first in-position sensor obtains the in-position signal and sends it to the control terminal, and the control terminal determines that the gate is fully opened. When the gate is open, if a fault occurs, the gate leaf falls off, the push rod falls with the gate leaf, and the monitoring rod also moves downward. During the downward movement of the monitoring rod, it moves to the corresponding position of the touch rod on the monitoring rod and the second in-position sensor. The sensor obtains the corresponding in-position signal and sends it to the control terminal, the control terminal determines that the gate has failed, sends an alarm signal to the alarm, and the alarm sounds an alarm; the present invention arranges a third in-position sensor at a position above the first in-position sensor on the guide frame, so that when the gate leaf cannot reach the corresponding position of full opening due to leakage of the hydraulic gate hoist during use, the control terminal controls the hydraulic gate hoist to continue to retract to the corresponding position of the third in-position sensor, and then controls the hydraulic gate hoist to operate so that the gate leaf descends to the position on the monitoring rod and the touch rod moves to the position corresponding to the first in-position sensor, and determines the operating amount of the gate opening after adjustment according to the adjustment amount of the hydraulic gate hoist, so as to reset the height of the gate opening. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 : A structural diagram of the gate when it is normally opened in the present invention.
[0014] Figure 2 : A structural diagram of the present invention when a fault occurs after the gate is opened.
[0015] Figure 3 : Figure 1 Cross-sectional view at AA in the middle.
[0016] Figure 4 : Figure 1 Schematic diagram at point B in the middle.
[0017] Figure 5 : Figure 1 Schematic diagram at point C in the middle.
[0018] Figure 6 : Connection diagram of the present invention.
[0019] In the figure: 1. Gate slot; 2. Gate leaf; 3. Hydraulic opening and closing machine; 4. Push rod; 5. Frame; 6. Guide frame; 7. Monitoring rod; 8. First in-position sensor; 9. Second in-position sensor; 10. Third in-position sensor; 11. Fourth in-position sensor; 12. Touch rod; 13. Movable pulley; 14. First fixed pulley; 15. Second fixed pulley; 16. Guide sleeve; 17. Sealing ring; 18. Dust ring; 19. Counterweight; 20. Rubber pad; 21. Control terminal; 22. Alarm. DETAILED DESCRIPTION
[0020] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are intended to explain the present invention but the present invention is not limited to the following examples.
[0021] The first embodiment is a state monitoring system for an emergency gate. The emergency gate has a gate slot 1, a gate leaf 2 is arranged in the gate slot 1, and a hydraulic hoist 3 is arranged above the gate slot 1. The hydraulic hoist 3 is connected to the gate leaf 2 and has the following features: The stop rod 4 is installed on the gate leaf 2 and arranged along the moving direction of the gate leaf 2; The guide frame 6 is arranged above the gate slot 1. A monitoring rod 7 arranged along the moving direction of the gate leaf 2 is installed on the guide frame 6. The monitoring rod 7 can move along the moving direction of the gate leaf 2 on the guide frame 6. The lower end of the monitoring rod 7 extends into the gate slot 1 and can contact the top of the push rod 4. When the gate is opened and the gate leaf 2 rises, the push rod 4 can press against the monitoring rod 7 and drive the monitoring rod 7 to move upward. A first in-position sensor 8 and a second in-position sensor 9 are provided on the guide frame 6 from top to bottom at a position corresponding to the monitoring rod 7. When the gate is fully opened, the monitoring rod 7 moves to a position corresponding to the first in-position sensor 8. When the monitoring rod 7 moves to a position corresponding to the first in-position sensor 8 or the second in-position sensor 9 in the guide frame 6, the first in-position sensor 8 or the second in-position sensor 9 can obtain a corresponding in-position signal; The control terminal 21, the hydraulic hoist 3, the first in-position sensor 8 and the second in-position sensor 9 are all communicatively connected to the control terminal 21. The control terminal 21 can control the operation of the hydraulic hoist 3. The control terminal 21 can receive in-position signals from the first in-position sensor 8 and the second in-position sensor 9. The control terminal 21 can determine that the gate is in an open state when it sequentially receives in-position signals from the second in-position sensor 9 and the first in-position sensor 8. The control terminal 21 can determine that the gate is in a fault state when it receives in-position signals from the second in-position sensor 9 and the first in-position sensor 8 again after sequentially receiving in-position signals from the second in-position sensor 9 and the first in-position sensor 8. The alarm 22 is connected to the control terminal 21 in communication. The alarm 22 can receive the alarm signal of the control terminal 21 and sound an alarm when the control terminal 21 determines that the gate is in a fault state. In this way, when the gate is opened, the hydraulic hoist 3 runs and drives the gate leaf 2 to move upward. The abutment 4 on the gate leaf 2 abuts against the lower end of the monitoring rod 7 during the upward movement and drives the monitoring rod 7 to move upward. During the upward movement of the monitoring rod 7, the monitoring rod 7 passes through the positions corresponding to the second in-position sensor 9 and the first in-position sensor 8 in turn. When the monitoring rod 7 moves to the position corresponding to the first in-position sensor 8, the gate is opened. At this time, the first in-position sensor 8 obtains the corresponding in-position signal and sends it to the control terminal 21. The control terminal 21 determines that the gate is normally opened. When the gate is in the open state, when the gate fails and the gate leaf 2 falls off the hydraulic opening and closing machine 3, the support rod 4 moves downward with the gate leaf 2, and the monitoring rod 7 moves downward under the action of its own weight. When the monitoring rod 7 moves downward to the position corresponding to the second in-position sensor 9, the second in-position sensor 9 obtains the corresponding in-position signal and sends it to the control terminal 21. The control terminal 21 determines that the gate is in a faulty state, and the control terminal 21 sends an alarm signal to the alarm 22, and the alarm 22 sounds an alarm.
[0022] Embodiment 2 is a status monitoring system for an emergency gate. Based on embodiment 1, in this embodiment, a third in-position sensor 10 is provided on the guide frame 6 at a position above the first in-position sensor 8. The third in-position sensor 10 is communicatively connected to the control terminal 21. When the hydraulic hoist 3 is fully retracted and the gate leaf 2 moves to the highest position, the monitoring rod 7 moves to the position corresponding to the third in-position sensor 10. The control terminal 21 can determine that the hydraulic hoist 3 has leaked when the gate is fully opened and the monitoring rod 7 has not moved to the position corresponding to the first in-position sensor 8. When the hydraulic hoist 3 leaks, the control terminal 21 can control the hydraulic hoist 3 to retract and move the monitoring rod 7 to the position corresponding to the third in-position sensor 10, and then control the hydraulic hoist 3 to extend and drive the monitoring rod 7 to move downward to the position corresponding to the first in-position sensor 8. In this way, when the gate leaf 2 cannot reach the fully opened position when the gate is opened due to leakage of the hydraulic opening and closing machine 3 during use, the control terminal 21 controls the hydraulic opening and closing machine 3 to continue to retract to the position corresponding to the third in-position sensor 10, and then the control terminal 21 controls the hydraulic opening and closing machine 3 to operate so that the gate leaf 2 drops to the position on the monitoring rod 7 and the touch rod 12 moves to the position corresponding to the first in-position sensor 8. The operating amount of the gate opening after adjustment is determined according to the adjustment amount of the hydraulic opening and closing machine 3, so as to reset the height of the gate opening.
[0023] Example 3 is a state monitoring system for an emergency gate. Based on Example 1, in this embodiment, a fourth in-position sensor 11 is provided on the guide frame 6 below the second in-position sensor 9. The fourth in-position sensor 11 is communicatively connected to the control terminal 21. When the monitoring rod 7 moves to the position corresponding to the fourth in-position sensor 11, the fourth in-position sensor 11 can obtain a corresponding in-position signal and transmit it to the control terminal 21. In this way, the second in-position sensor 9 and the fourth in-position sensor 11 cooperate to monitor the gate's state. When both the second in-position sensor 9 and the fourth in-position sensor 11 detect in-position signals, the control terminal 21 determines that the gate is in a faulty state.
[0024] The fourth embodiment is a state monitoring system for an emergency gate. In this embodiment, it has: The stop rod 4 is installed on the gate leaf 2 and arranged along the moving direction of the gate leaf 2; The guide frame 6 is arranged above the gate slot 1. A monitoring rod 7 arranged along the moving direction of the gate leaf 2 is installed on the guide frame 6. The monitoring rod 7 can move along the moving direction of the gate leaf 2 on the guide frame 6. The lower end of the monitoring rod 7 extends into the gate slot 1 and can contact the top of the push rod 4. When the gate is opened and the gate leaf 2 rises, the push rod 4 can press against the monitoring rod 7 and drive the monitoring rod 7 to move upward. A first in-position sensor 8 and a second in-position sensor 9 are provided on the guide frame 6 from top to bottom at a position corresponding to the monitoring rod 7. When the gate is fully opened, the monitoring rod 7 moves to a position corresponding to the first in-position sensor 8. When the monitoring rod 7 moves to a position corresponding to the first in-position sensor 8 or the second in-position sensor 9 in the guide frame 6, the first in-position sensor 8 or the second in-position sensor 9 can obtain a corresponding in-position signal; The control terminal 21, the hydraulic hoist 3, the first in-position sensor 8 and the second in-position sensor 9 are all communicatively connected to the control terminal 21. The control terminal 21 can control the operation of the hydraulic hoist 3. The control terminal 21 can receive in-position signals from the first in-position sensor 8 and the second in-position sensor 9. The control terminal 21 can determine that the gate is in an open state when it sequentially receives in-position signals from the second in-position sensor 9 and the first in-position sensor 8. The control terminal 21 can determine that the gate is in a fault state when it receives in-position signals from the second in-position sensor 9 and the first in-position sensor 8 again after sequentially receiving in-position signals from the second in-position sensor 9 and the first in-position sensor 8. The alarm device 22 is in communication with the control terminal 21. The alarm device 22 can receive an alarm signal from the control terminal 21 and issue an alarm when the control terminal 21 determines that the gate is in a fault state.
[0025] A third in-place sensor 10 is provided on the guide frame 6 at a position above the first in-place sensor 8. The third in-place sensor 10 is communicatively connected to the control terminal 21. When the hydraulic hoist 3 is fully retracted and the gate leaf 2 moves to the highest position, the monitoring rod 7 moves to the position corresponding to the third in-place sensor 10. The control terminal 21 can determine that the hydraulic hoist 3 is leaking when the gate is fully opened and the monitoring rod 7 has not moved to the position corresponding to the first in-place sensor 8. When the hydraulic hoist 3 leaks, the control terminal 21 can control the hydraulic hoist 3 to contract so that the monitoring rod 7 moves to the position corresponding to the third in-place sensor 10, and then control the hydraulic hoist 3 to extend and drive the monitoring rod 7 to move downward to the position corresponding to the first in-place sensor 8.
[0026] A fourth in-position sensor 11 is provided on the guide frame 6 below the second in-position sensor 9. The fourth in-position sensor 11 is communicatively connected to the control terminal 21. When the monitoring rod 7 moves to the position corresponding to the fourth in-position sensor 11, the fourth in-position sensor 11 can obtain the corresponding in-position signal and send it to the control terminal 21.
[0027] The state monitoring method of the accident gate in this embodiment is as follows: After the control terminal 21 receives the gate opening signal, the control terminal 21 controls the hydraulic hoist 3 to operate, and the hydraulic hoist 3 drives the gate leaf 2 to move upward; The stop rod 4 passes through the fourth in-position sensor 11, the second in-position sensor 9, and the first in-position sensor 8 in sequence. The fourth in-position sensor 11, the second in-position sensor 9, and the first in-position sensor 8 obtain in-position signals in sequence and send the signals to the control terminal 21. The control terminal 21 determines that the gate is opened normally. When the gate fails in the open state and the gate leaf 2 falls off, the first signal passes through the second in-place sensor 9 and the fourth in-place sensor 11 in sequence. The second in-place sensor 9 and the fourth in-place sensor 11 obtain the in-place signal in sequence and send the signal to the control terminal 21. The control terminal 21 determines that the gate has failed, and the control terminal 21 sends an alarm signal to the alarm 22, and the alarm 22 sounds an alarm.
[0028] In this embodiment, the state adjustment method of the emergency gate is: After the control terminal 21 receives the gate opening signal, the control terminal 21 controls the hydraulic hoist 3 to operate, and the hydraulic hoist 3 drives the gate leaf 2 to move upward; The stop rod 4 passes through the fourth in-position sensor 11 and the second in-position sensor 9 in sequence. The fourth in-position sensor 11 and the second in-position sensor 9 obtain in-position signals in sequence and send the signals to the control terminal 21. The control terminal 21 determines that the gate opening is abnormal. The control terminal 21 controls the hydraulic hoist 3 to continue running, driving the gate leaf 2 to move up to the highest position, and the stop rod 4 moves to the position corresponding to the third in-position sensor 10. The third in-position sensor 10 obtains the in-position signal and sends the signal to the control terminal 21. The control terminal 21 controls the hydraulic hoist 3 to stop running; The control terminal 21 controls the operation of the hydraulic hoist 3 and drives the gate leaf 2 to move downward. When the push rod 4 moves to the position corresponding to the first in-position sensor 8, the first in-position sensor 8 obtains the in-position signal and sends the signal to the control terminal 21. The control terminal 21 determines the operation amount of the hydraulic hoist 3 from the gate leaf 2 at the bottom position of the gate to the position corresponding to the push rod 4 and the third in-position sensor 10 and from the position corresponding to the push rod 4 and the third in-position sensor 10 to the position corresponding to the push rod 4 and the first in-position sensor 8 based on the adjustment amount of the hydraulic hoist 3 from the gate leaf 2 at the bottom position of the gate to the position corresponding to the push rod 4 and the third in-position sensor 10
[0029] After the control terminal 21 receives the gate opening signal, the control terminal 21 controls the operation of the hydraulic hoist 3 according to the adjusted operation amount.
[0030] The fifth embodiment is a state monitoring device for an emergency gate, which applies the fourth embodiment. In this embodiment, the device has: The frame 5 is mounted on the gate slot 1, and the guide frame 6 is mounted on the frame 5; The touch rod 12 is mounted on the monitoring rod 7. When the touch rod 12 moves with the monitoring rod 7 to a position corresponding to each in-place sensor, the touch rod 12 can contact the in-place sensor. The counterweight 19 is connected to the guide frame 6 through a pulley block; The sealing structure is arranged on the gate slot 1 at a position corresponding to the monitoring rod 7; The pulley block comprises a movable pulley 13 mounted on the top of the monitoring rod 7, a first fixed pulley 14 mounted on the bottom of the frame 5, and a second fixed pulley 15 mounted on the top of the frame 5. The traction rope at the top of the counterweight 19 passes through the second fixed pulley 15, the first fixed pulley 14, and the movable pulley 13 in sequence and is connected to the guide frame 6. In this way, under the action of the sealing structure, the monitoring rod 7 is subjected to a greater friction force during the movement. When the push rod 4 abuts against the monitoring rod 7 and moves upward, it is powered by the hydraulic gate opening machine 3. When the gate fails, the push rod 4 separates from the monitoring rod 7 as the gate falls off. At this time, the monitoring rod 7 is pressed downward by the gravity of the counterweight 19 and the pulley block, realizing the downward drive of the monitoring rod 7.
[0031] In this embodiment, the sealing structure comprises a guide sleeve 16 bolted to the gate slot 1. The monitoring rod 7 is movable within the guide sleeve 16. A sealing ring 17 and a dust ring 18 are provided on the inner wall of the guide sleeve 16. This movement of the monitoring rod 7 within the guide sleeve 16 effectively reduces wear between the monitoring rod 7 and the gate slot 1. The sealing ring 17 and dust ring 18 within the guide sleeve 16 also provide a good dustproof seal.
[0032] In the present embodiment, a rubber pad 20 is provided on the frame 5 below the counterweight 19. Like this, the counterweight 19 can play a good shock-absorbing effect under the action of the rubber pad 20 during the falling process.
[0033] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.
Claims
1. A state monitoring system for an emergency gate, wherein the emergency gate has a gate slot (1), a gate leaf (2) is arranged in the gate slot (1), a hydraulic hoist (3) is arranged above the gate slot (1), and the hydraulic hoist (3) is connected to the gate leaf (2), and is characterized in that: have: A push rod (4) is mounted on the gate leaf (2), and the push rod (4) is arranged along the moving direction of the gate leaf (2); The guide frame (6) is arranged above the gate slot (1). A monitoring rod (7) arranged along the moving direction of the gate leaf (2) is installed on the guide frame (6). The monitoring rod (7) can move along the moving direction of the gate leaf (2) on the guide frame (6). The lower end of the monitoring rod (7) extends into the gate slot (1) and can contact the top of the push rod (4). When the gate is opened and the gate leaf (2) rises, the push rod (4) can push against the monitoring rod (7) and drive the monitoring rod (7) to move upward. A first in-position sensor (8) and a second in-position sensor (9) are arranged on the guide frame (6) from top to bottom at a position corresponding to the monitoring rod (7). When the gate is fully opened, the monitoring rod (7) moves to a position corresponding to the first in-position sensor (8). When the monitoring rod (7) moves to a position corresponding to the first in-position sensor (8) or the second in-position sensor (9) in the guide frame (6), the first in-position sensor (8) or the second in-position sensor (9) can obtain a corresponding in-position signal. The control terminal (21), the hydraulic gate hoist (3), the first in-position sensor (8) and the second in-position sensor (9) are all connected to the control terminal (21) for communication. The control terminal (21) can control the operation of the hydraulic gate hoist (3). The control terminal (21) can receive in-position signals from the first in-position sensor (8) and the second in-position sensor (9). The control terminal (21) can determine that the gate is in an open state when it receives in-position signals from the second in-position sensor (9) and the first in-position sensor (8) in sequence. The control terminal (21) can determine that the gate is in a fault state when it receives in-position signals from the second in-position sensor (9) and the first in-position sensor (8) again after receiving in-position signals from the second in-position sensor (9) in sequence. The alarm (22) is connected to the control terminal (21) for communication. When the control terminal (21) determines that the gate is in a fault state, the alarm (22) can receive an alarm signal from the control terminal (21) and issue an alarm.
2. The state monitoring system for an emergency gate according to claim 1, characterized in that: A third in-position sensor (10) is provided on the guide frame (6) at a position above the first in-position sensor (8). The third in-position sensor (10) is communicatively connected to the control terminal (21). When the hydraulic hoist (3) is fully retracted and the gate leaf (2) moves to the highest position, the monitoring rod (7) moves to a position corresponding to the third in-position sensor (10). The control terminal (21) can judge that the hydraulic hoist (3) has leaked when the gate is fully opened and the monitoring rod (7) has not moved to a position corresponding to the first in-position sensor (8). When the hydraulic hoist (3) has leaked, the control terminal (21) can control the hydraulic hoist (3) to retract so that the monitoring rod (7) moves to a position corresponding to the third in-position sensor (10), and then control the hydraulic hoist (3) to extend and drive the monitoring rod (7) to move downward to a position corresponding to the first in-position sensor (8).
3. The state monitoring system for an emergency gate according to claim 1, characterized in that: A fourth in-position sensor (11) is provided on the guide frame (6) below the second in-position sensor (9). The fourth in-position sensor (11) is communicatively connected to the control terminal (21). When the monitoring rod (7) moves to a position corresponding to the fourth in-position sensor (11), the fourth in-position sensor (11) can obtain a corresponding in-position signal and send it to the control terminal (21).
4. A state monitoring device for an emergency gate, using the state monitoring system for an emergency gate according to any one of claims 1 to 3, characterized in that: have: A frame (5) is mounted on the gate slot (1), and a guide frame (6) is mounted on the frame (5); A touch rod (12) is mounted on the monitoring rod (7), and when the touch rod (12) moves with the monitoring rod (7) to a position corresponding to each in-place sensor, the touch rod (12) can contact the in-place sensor; A counterweight (19) is connected to the guide frame (6) via a pulley assembly; A sealing structure is arranged on the gate slot (1) at a position corresponding to the monitoring rod (7); The pulley assembly comprises a movable pulley (13) mounted on the top of the monitoring rod (7), a first fixed pulley (14) mounted on the bottom of the frame (5), and a second fixed pulley (15) mounted on the top of the frame (5); a traction rope at the top of the counterweight (19) passes through the second fixed pulley (15), the first fixed pulley (14), and the movable pulley (13) in sequence and is then connected to the guide frame (6).
5. The state monitoring device for an emergency gate according to claim 4, characterized in that: The sealing structure comprises a guide sleeve (16) fixedly mounted on the gate slot (1) by means of bolts, the monitoring rod (7) can move in the guide sleeve (16), and a sealing ring (17) and a dust ring (18) are provided on the inner wall of the guide sleeve (16).
6. The state monitoring device for an emergency gate according to claim 4, characterized in that: A rubber pad (20) is provided on the frame (5) below the counterweight (19).
7. A method for monitoring the status of an emergency gate, using the system for monitoring the status of an emergency gate according to any one of claims 1 to 3, characterized in that: have: After the control terminal (21) receives the gate opening signal, the control terminal (21) controls the hydraulic hoist (3) to operate, and the hydraulic hoist (3) drives the gate leaf (2) to move upward; The push rod (4) passes through the fourth in-position sensor (11), the second in-position sensor (9), and the first in-position sensor (8) in sequence. The fourth in-position sensor (11), the second in-position sensor (9), and the first in-position sensor (8) obtain in-position signals in sequence and send the signals to the control terminal (21). The control terminal (21) determines that the gate is opened normally. When the gate fails in the open state and the gate leaf (2) falls off, the gate passes through the second in-place sensor (9) and the fourth in-place sensor (11) in sequence. The second in-place sensor (9) and the fourth in-place sensor (11) obtain in-place signals in sequence and send the signals to the control terminal (21). The control terminal (21) determines that the gate fails, and the control terminal (21) sends an alarm signal to the alarm (22), and the alarm (22) sounds an alarm.
8. A method for adjusting an emergency gate, using the emergency gate status monitoring system according to any one of claims 1 to 3, characterized in that: have: After the control terminal (21) receives the gate opening signal, the control terminal (21) controls the hydraulic hoist (3) to operate, and the hydraulic hoist (3) drives the gate leaf (2) to move upward; The push rod (4) passes through the fourth in-position sensor (11) and the second in-position sensor (9) in sequence, and the fourth in-position sensor (11) and the second in-position sensor (9) obtain in-position signals in sequence and send the signals to the control terminal (21), and the control terminal (21) determines that the gate is opened abnormally; The control terminal (21) controls the hydraulic gate hoist (3) to continue to operate, drives the gate leaf (2) to move up to the highest position, and the push rod (4) moves to a position corresponding to the third in-position sensor (10). The third in-position sensor (10) obtains an in-position signal and sends the signal to the control terminal (21). The control terminal (21) controls the hydraulic gate hoist (3) to stop operating; The control terminal (21) controls the hydraulic gate hoist (3) to operate and drive the gate leaf (2) to move downward. When the push rod (4) moves to the position corresponding to the first in-position sensor (8), the first in-position sensor (8) obtains the in-position signal and sends the signal to the control terminal (21). The control terminal (21) determines the operating amount of the hydraulic gate hoist (3) from the gate leaf (2) at the bottom of the gate to the position corresponding to the push rod (4) and the third in-position sensor (10) and the position corresponding to the push rod (4) and the third in-position sensor (10) to the position corresponding to the push rod (4) and the first in-position sensor (8); After the control terminal (21) subsequently receives the gate opening signal, the control terminal (21) controls the operation of the hydraulic gate hoist (3) according to the adjusted operation amount.