Flap door control device

Abstract

This invention discloses a flap gate control device, comprising: a frame; an electric motor; a hydraulic control module, which includes an emergency control valve, a control valve module, an oil tank, and an oil cylinder. The oil cylinder includes a cylinder body and a piston rod, the cylinder body being mounted on the frame, and the piston rod for moving up and down along the cylinder body. The oil tank is connected to the oil cylinder via the control valve module and the emergency control valve; a pulley block module, which includes a lifting pulley block, a multiplier pulley block, a wire rope, and a rigging. The lifting pulley block is located at the top end of the oil cylinder, the multiplier pulley block is mounted on the frame, and the wire rope, after wrapping around the lifting pulley block and the multiplier pulley block, is looped around the lifting pulley block, the multiplier pulley block, or the frame via the rigging; and a controller, which is electrically connected to the pulley block module, the emergency control valve, the control valve module, and the electric motor. This design provides a buffering effect when the flap gate closes, thereby reducing the impact on the flap gate itself and hydraulic structures.

Description

Technical Field

[0001] This invention relates to the field of flap gate technology, and in particular to a flap gate control device. Background Technology

[0002] The main methods for shutting off the flow in straight-pipe outlet channels of pumping stations are flap gates and quick-release gates, with flap gates being more widely used. In related technologies, flap gates are primarily installed at the outlet of drainage pipes along rivers. When the external water level is higher than the outlet and the pressure inside the pipe is greater, the flap gate closes to prevent backflow. When the external water level is lower than the outlet and the pressure inside the pipe is greater than the external pressure, the flap gate opens to drain water. The flap gate closes using gravity and the impact force of the backflow, and during this process, it may be subjected to significant impact forces, which can adversely affect the flap gate itself and hydraulic structures. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a flap gate control device that can act as a buffer when the flap gate closes, thereby reducing the impact on the flap gate itself and hydraulic structures, and can also achieve rapid flow interruption protection in emergency situations.

[0004] A flap gate control device according to an embodiment of the present invention includes:

[0005] frame;

[0006] Electric motor;

[0007] A hydraulic control module includes an emergency control valve, a control valve module, an oil tank, and an oil cylinder. The oil cylinder includes a cylinder body and a piston rod. The cylinder body is mounted on the frame, and the piston rod is used to move up and down along the cylinder body. The oil tank is connected to the oil cylinder through the control valve module and the emergency control valve.

[0008] The pulley block module includes a lifting pulley block, a multiplier pulley block, a wire rope, and a rigging. The lifting pulley block is located at the top end of the hydraulic cylinder and can make corresponding displacement movements following the extension and retraction of the piston rod. The multiplier pulley block is mounted on the frame. After the wire rope wraps around the lifting pulley block and the multiplier pulley block, it is looped around the lifting pulley block, the multiplier pulley block, or the frame by the rigging.

[0009] The controller is electrically connected to the pulley block module, the emergency control valve, the control valve module, and the motor.

[0010] The flap gate control device according to an embodiment of the present invention has at least the following technical effects: the device includes a frame, a motor, a hydraulic control module, a pulley block module, and a controller. The hydraulic control module includes an emergency control valve, a control valve module, an oil tank, and an oil cylinder. The oil cylinder includes a cylinder body and a piston rod. The cylinder body is mounted on the frame, and the piston rod is used to move up and down along the cylinder body. The oil tank is connected to the oil cylinder through the control valve module and the emergency control valve. When the flap gate is closed, the motor starts, causing the oil tank to supply oil to the oil cylinder. The controller controls the flow of oil through the control valve module, thereby supplying oil to the device. In emergencies, the emergency control valve can be manually operated to achieve rapid flow interruption protection. The pulley block module includes a lifting pulley block, a multiplier pulley block, a wire rope, and rigging. The lifting pulley block is located at the top of the hydraulic cylinder and can make corresponding displacement movements following the extension and retraction of the piston rod. The multiplier pulley block is mounted on the frame. After the wire rope wraps around the lifting pulley block and the multiplier pulley block, it is looped in the lifting pulley block, the multiplier pulley block, or the frame through the rigging. The above-mentioned pulley block module can provide multiple forces when the flap gate is closed, playing a buffering role, thereby reducing the impact on the flap gate itself and hydraulic structures.

[0011] According to an embodiment of the flap gate control device of the present invention, the pulley block module further includes a steering pulley block, which is disposed below the frame and is connected to the lifting pulley block via the wire rope.

[0012] According to an embodiment of the flap gate control device of the present invention, the pulley block module further includes a balance pulley block, which is connected to the steering pulley block or the lifting pulley block via the wire rope.

[0013] According to an embodiment of the present invention, the control valve module includes an overflow valve, a solenoid directional valve, a one-way throttle valve, a throttle valve, a filter screen, a motor, an oil pump, a first cartridge valve, and a second cartridge valve. The first port of the solenoid directional valve is connected to the oil tank through the overflow valve. The second port of the solenoid directional valve is connected to the oil tank and the first port of the second cartridge valve, respectively. The second port of the second cartridge valve is connected to the oil cylinder through the throttle valve. The third port of the solenoid directional valve is connected to the oil cylinder through the one-way throttle valve and the first cartridge valve. The fourth port of the solenoid directional valve is connected to the oil cylinder. The oil pump is connected to the first port of the filter screen, the motor, and the first port of the solenoid directional valve, respectively. The second port of the filter screen is connected to the oil tank.

[0014] According to an embodiment of the present invention, the flap control device further includes a stroke control module, the stroke control module including a stroke sensor and a support frame, the support frame being fixedly connected to the hydraulic cylinder, the stroke sensor having multiple stroke sensors, all of which are disposed on the support frame, and the stroke sensor being connected to the piston rod.

[0015] According to an embodiment of the present invention, the flap control device further includes a rod-shaped oil supply pipe and a rodless oil supply pipe. One end of the rod-shaped oil supply pipe is connected to the emergency control valve through the rodless oil supply pipe, and the other end of the rod-shaped oil supply pipe is connected to the oil cylinder.

[0016] According to an embodiment of the flap control device of the present invention, the control valve module further includes a first shut-off valve and a second shut-off valve. The first port of the first shut-off valve is connected to the oil tank, the first port of the second shut-off valve is connected to the second port of the first shut-off valve and the first cartridge valve, respectively, and the second port of the second shut-off valve is connected to the oil cylinder.

[0017] According to an embodiment of the flap valve control device of the present invention, the control valve module further includes a level gauge, which is connected to the oil tank.

[0018] According to an embodiment of the flap gate control device of the present invention, the control valve module further includes a one-way valve, which is disposed between the first oil port of the electromagnetic reversing valve and the oil pump.

[0019] According to an embodiment of the flap valve control device of the present invention, the control valve module further includes a pressure gauge, which is connected to the check valve, the relief valve and the oil pump respectively.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a front view of the flap gate control device provided in an embodiment of the present invention;

[0023] Figure 2 This is a right view of a flap gate control device provided in one embodiment of the present invention;

[0024] Figure 3 This is a top view of a flap gate control device provided in one embodiment of the present invention;

[0025] Figure 4This is a schematic diagram of the pulley block of a flap gate control device according to an embodiment of the present invention;

[0026] Figure 5 The schematic diagram of the hydraulic control module circuit of the flap gate control device provided in one embodiment of the present invention.

[0027] Figure label:

[0028] Frame 110, motor 120, electrical control box 140, rod-side oil delivery pipe 150, rodless-side oil delivery pipe 160

[0029] Stroke control module 180, stroke sensor 181, support frame 182

[0030] Hydraulic control module 130, emergency control valve 131, oil tank 132, oil cylinder 133, cylinder body 1331, piston rod 1332, oil cylinder support rod 1333, control valve module 134, solenoid directional valve 1341, one-way throttle valve 1342, oil pump 1343, filter screen 1344, level gauge 1345, pressure gauge 1346, one-way valve 1347, relief valve 1348, throttle valve 1349.

[0031] Pulley block module 190, steering pulley block 191, lifting pulley block 192, multiplier pulley block 193, balance pulley block 194, wire rope 195. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. 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.

[0033] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0034] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first," "second," and "third" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0035] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0036] refer to Figures 1 to 4 The flap gate control device of this invention includes: a frame 110, a motor 120, a hydraulic control module 130, a pulley block module 190, and a controller. The hydraulic control module 130 includes an emergency control valve 131, a control valve module 134, an oil tank 132, and an oil cylinder 133. The oil cylinder 133 includes a cylinder body 1331 and a piston rod 1332. The cylinder body 1331 is mounted on the frame 110, and the piston rod 1332 is used to move up and down along the cylinder body 1331. The oil tank 132 is connected to the oil cylinder 133 through the control valve module 134 and the emergency control valve 131. When the flap gate is closed, the motor 120 starts, causing the oil tank 132 to supply oil to the oil cylinder 133. The controller controls the flow of oil through the control valve module 134, thereby controlling the flow of oil to the device. The system is equipped with an oil supply system. In an emergency, the emergency control valve 131 can be manually operated to achieve rapid flow interruption protection. The pulley block module 190 includes a lifting pulley block 192, a multiplier pulley block 193, a wire rope 195, and rigging. The lifting pulley block 192 is located at the top end of the cylinder 133 and can make corresponding displacement movements following the extension and retraction of the piston rod 1332. The multiplier pulley block 193 is mounted on the frame 110. After the wire rope 195 is wrapped around the lifting pulley block 192 and the multiplier pulley block 193, it is looped around the lifting pulley block 192, the multiplier pulley block 193, or the frame 110 through the rigging. The pulley block module 190 can provide multiple forces when the flap gate is closed, playing a buffering role, thereby reducing the impact on the flap gate itself and the hydraulic structure.

[0037] It should be noted that when the wire rope 195 passes through the rigging loop on the lifting pulley block 192 after wrapping around the lifting pulley block 192 and the multiplier pulley block 193, it can provide 3 times the force, thus playing a buffering role; when the wire rope 195 passes through the rigging loop on the multiplier pulley block 193 or the frame 110 after wrapping around the lifting pulley block 192 and the multiplier pulley block 193, it can provide 4 times the force, thus playing a buffering role and reducing the impact on the flap gate itself and the hydraulic structure.

[0038] refer to Figures 1 to 4 The pulley block module 190 also includes a steering pulley block 191, which is located below the frame 110. The steering pulley block 191 is connected to the lifting pulley block 192 via a wire rope 195. The wire rope 195 can change the direction of the applied force by passing through the steering pulley block 191.

[0039] refer to Figures 1 to 4 The pulley block module 190 also includes a balance pulley block 194, which is connected to the steering pulley block 191 or the lifting pulley block 192 via a wire rope 195. When the balance pulley block 194 is connected to the lifting pulley block 192 via the wire rope 195, it provides three times the force, acting as a buffer. When the balance pulley block 194 is connected to the steering pulley block 191 via the wire rope 195, the direction of the force applied by the wire rope 195 can be changed by the steering pulley block 191. In addition, the balance pulley block 194 can achieve synchronous and balanced bearing of the force from the wire rope 195 on the lifting pulley block 192 and the multiplier pulley block 193.

[0040] refer to Figure 5 The control valve module 134 includes an overflow valve 1348, a solenoid directional valve 1341, a one-way throttle valve 1342, a throttle valve 1349, a filter screen 1344, an oil pump 1343, a first cartridge valve YV3, and a second cartridge valve YV4. The first port P of the solenoid directional valve 1341 is connected to the oil tank 132 through the overflow valve 1348. The second port T of the solenoid directional valve 1341 is connected to the oil tank 132 and the first port of the second cartridge valve YV4, respectively. The second port of V4 is connected to the cylinder 133 via the throttle valve 1349. The third port A of the solenoid directional valve 1341 is connected to the cylinder 133 via the one-way throttle valve 1342 and the first cartridge valve YV3. The fourth port B of the solenoid directional valve 1341 is connected to the cylinder 133. The oil pump 1343 is connected to the first port of the filter screen 1344, the motor 120, and the first port P of the solenoid directional valve 1341. The second port of the filter screen 1344 is connected to the oil tank 132.

[0041] Understandably, when the flap gate closes, the motor 120 drives the oil pump 1343 to draw oil from the oil tank 132. The oil is purified by the filter screen 1344 to obtain pure oil, which is beneficial for the efficient operation of the device. The oil pump 1343 is connected to the overflow valve 1348, which plays a safety protection role, ensuring that the system does not have an accident due to excessive pressure. Subsequently, the purified oil is delivered to the solenoid directional valve 1341 through the oil pump 1343. The oil enters through the first port P of the solenoid directional valve 1341 and exits through the third port A of the solenoid directional valve 1341. It first flows through the one-way throttle valve 1342, then through the first cartridge valve YV3, and finally to the oil cylinder 133. Alternatively, the oil can first flow through the first cartridge valve YV3, then through the one-way throttle valve 1342, and finally to the oil cylinder 133. The one-way throttle valve 1342 is used for... The first cartridge valve YV3 controls the flow of oil, ensuring sufficient oil volume to provide ample power to the pulley module 190 and reduce impact on the flap gate and hydraulic structures. Oil can also enter through the second port T of the solenoid directional valve 1341 and exit through the fourth port B, being delivered to the cylinder 133 to provide sufficient power to the pulley module 190 and further reduce impact on the flap gate and hydraulic structures. This design allows for control of oil flow based on actual conditions. The fourth port B of the solenoid directional valve 1341 is connected to the second cartridge valve YV4, which remains energized to maintain flap gate operation.

[0042] It should be noted that the solenoid directional valve 1341 is a three-position four-way valve with three working positions and four ports. In its natural position, it is in the neutral position. Both the first cartridge valve YV3 and the second cartridge valve YV4 are cartridge valves. Cartridge valves can achieve a flow rate of up to 1000 L / min and a diameter of 200–250 mm. They have a simple valve core structure, are highly sensitive, and have good sealing performance. Their main function is to open or close the fluid path. The cartridge valves can be either the solenoid directional valve 1341 or the check valve 1347. The following combinations can be used for replacement: the first oil port P, the second oil port T, the third oil port A, and the fourth oil port B are all interfaces used to connect the electromagnetic steering valve to other components; the first port and the second port are both interfaces used to connect the second cartridge valve YV4 and the filter screen 1344 to other components; the overflow valve 1348 can be a DBD type direct-acting overflow valve with an insert plate; the throttle valve 1349 can be a DVP type throttle shut-off valve; the one-way throttle valve 1342 can be a DVRP type one-way throttle shut-off valve.

[0043] refer to Figures 1 to 3The flap control device also includes a stroke control module 180, which includes a stroke sensor 181 and a support frame 182. The support frame 182 is fixedly connected to the hydraulic cylinder 133 and can serve as a force-bearing carrier for the stroke sensor 181. There are multiple stroke sensors 181, which can be set on the support frame 182 at the same preset distance or at different distances. The stroke sensor 181 is connected to the piston rod 1332 and can detect the movement position of the piston rod 1332 in real time.

[0044] refer to Figures 1 to 3 The flap control device also includes a rod-shaped oil supply pipe 150 and a rodless oil supply pipe 160. One end of the rod-shaped oil supply pipe 150 is connected to the emergency control valve 131 through the rodless oil supply pipe 160, and the other end of the rod-shaped oil supply pipe 150 is connected to the oil cylinder 133. Oil is transported through the rod-shaped oil supply pipe 150 and the rodless oil supply pipe 160.

[0045] refer to Figure 5 The control valve module 134 also includes a first shut-off valve JZ1 and a second shut-off valve JZ2. The first port of the first shut-off valve JZ1 is connected to the oil tank 132. The first port of the second shut-off valve JZ2 is connected to the second port of the first shut-off valve JZ1 and the first cartridge valve YV3, respectively. The second port of the second shut-off valve JZ2 is connected to the oil cylinder 133. The first shut-off valve JZ1 and the second shut-off valve JZ2 are opened when the emergency control valve 131 is working, which can realize rapid flow interruption protection in emergency situations.

[0046] It should be noted that both the first stop valve JZ1 and the second stop valve JZ2 are stop valves. The sealing pair of the stop valve consists of the valve disc sealing surface and the valve seat sealing surface. The valve stem drives the valve disc to move vertically along the center line of the valve seat. The stop valve has a small opening height during opening and closing, making it easy to adjust the flow rate. It is also convenient to manufacture and maintain, and has a wide range of applicable pressures. The first stop valve JZ1 and the second stop valve JZ2 can be horizontal plate type high-pressure stop valves. Both the first port and the second port are interfaces used to connect the first stop valve JZ1 and the second stop valve JZ2 to other components.

[0047] refer to Figure 5 The control valve module 134 also includes a level gauge 1345, which is connected to the oil tank 132. The level gauge 1345 can detect the remaining oil level in the oil tank 132. When the oil level is insufficient, it can provide an alert and replenish the oil level in a timely manner.

[0048] refer to Figure 5The control valve module 134 also includes a check valve 1347. The check valve 1347 is located between the first oil port P of the solenoid directional valve 1341 and the oil pump 1343. The check valve 1347 controls the unidirectional flow of oil to avoid backflow. The check valve 1347 can be an S-type plate check valve.

[0049] refer to Figure 5 The control valve module 134 also includes a pressure gauge 1346, which is connected to a check valve 1347, a relief valve 1348 and an oil pump 1343 respectively. The pressure gauge 1346 can adjust the working pressure to a reasonable value so that the oil pump 1343 can work normally and avoid accidents.

[0050] In one embodiment, the flap gate control device further includes an electrical control box 140, which is mounted on the frame 110. A controller is mounted inside the electrical control box 140. The controller is a programmable controller, which can perform array operations and control various types of mechanical equipment or production processes, and has a wide range of applications.

[0051] In one embodiment, the flap gate control device further includes a hydraulic cylinder support rod 1333, which is disposed on both sides of the hydraulic cylinder 133. One end of the hydraulic cylinder support rod 1333 is connected to the frame 110, and the other end is connected to the hydraulic cylinder 133. The aforementioned support frame 182 is disposed above the hydraulic cylinder support rod 1333. The hydraulic cylinder support rod 1333 enables the hydraulic cylinder 133 to be fixedly mounted on the frame 110, preventing shaking that could affect the closing or opening of the flap gate.

[0052] The operation of the flap gate control device is explained in the following table.

[0053]

[0054] In this context, + indicates that the device is connected or operating, and - indicates that it is disconnected or stopped.

[0055] For example, the pressure adjustment condition is described in detail as follows: In the initial state, the piston rod 1332 is at the bottom of the cylinder 133, the power button of the electrical control box 140 is turned on, the first electromagnet YV1 of the solenoid directional valve 1341 is turned on, the second electromagnet YV2 of the solenoid directional valve 1341 is not turned on, the stroke sensor 181 is not working, the first cartridge valve YV3 and the second cartridge valve YV4 are both turned on, and the first shut-off valve JZ1 and the second shut-off valve JZ2 are both turned off. When adjustment is performed, the motor 120 is turned on, controlling the motor 120 to drive the oil pump 1343 to draw oil. The oil is filtered through the filter screen 1344 to obtain pure oil. Then the oil pump 1343 outputs pressurized oil, and the overflow valve 1348 is adjusted to the preset 10MPa (or other numbers) to adjust the pressure. After the adjustment is completed, the first electromagnet YV1 of the solenoid directional valve 1341, the first cartridge valve YV3, the second cartridge valve YV4, and the motor are all closed.

[0056] The opening condition of the flap gate is described in detail as follows: In the initial state, the piston rod 1332 is at the bottom of the oil cylinder 133, the power button of the electrical control box 140 is turned on, the first electromagnet YV1 of the electromagnetic reversing valve 1341 is not turned on, the second electromagnet YV2 of the electromagnetic reversing valve 1341 is turned on, the stroke sensor 181 is working, the first cartridge valve YV3 and the second cartridge valve YV4 are both turned on, and the first shut-off valve JZ1 and the second shut-off valve JZ2 are both turned off. When the motor 120 is turned on, it drives the oil pump 1343 to draw in oil. The oil is filtered through the filter screen 1344 to obtain pure oil. Then, the oil pump 1343 outputs pressurized oil, which is transported back to the oil tank 132 through the second port T of the solenoid directional valve 1341. This causes the piston rod 1332 to move upward, thereby driving the pulley block to move. The stroke sensor 181 detects the movement position of the piston rod 1332. The first cartridge valve YV3 and the second cartridge valve YV4 are both turned on to transport the oil back to the oil tank 132. When the flap gate is open and held, initially, the piston rod 1332 is at the top of the cylinder 133, the power button of the electrical control box 140 is turned on, the first electromagnet YV1 of the solenoid directional valve 1341 is not turned on, the second electromagnet YV2 of the solenoid directional valve 1341 is not turned on, the stroke sensor 181 is working, the first cartridge valve YV3 and the second cartridge valve YV4 are both turned on, and the first shut-off valve JZ1 and the second shut-off valve JZ2 are both turned off. According to the above flap gate opening, the first cartridge valve YV3 and the second cartridge valve YV4 keep the oil being drawn in, the flap gate is open and held, and the stroke sensor 181 is kept on to monitor the flap gate opening status. In addition, if the flap gate is in the open state for a long time, due to normal internal leakage of hydraulic fluid, the flap gate will sink. At this time, the stroke sensor 181 is turned on again according to the predetermined sinking amount of the flap gate, and the above flap gate opening and holding process is repeated to realize the reset and rise of the flap gate.

[0057] The following is a detailed description of the flap gate closing condition: In the initial state, the piston rod 1332 is at the top of the hydraulic cylinder 133, the power button of the electrical control box 140 is turned on, the first electromagnet YV1 of the electromagnetic reversing valve 1341 is turned on, the second electromagnet YV2 of the electromagnetic reversing valve 1341 is not turned on, the stroke sensor 181 is working, the first cartridge valve YV3 and the second cartridge valve YV4 are both not turned on, and the first shut-off valve JZ1 and the second shut-off valve JZ2 are both not turned on. When the motor 120 is turned on, it drives the oil pump 1343 to draw in oil. The oil is filtered through the filter screen 1344 to obtain pure oil. When the second stage of closing is reached, the first shut-off valve JZ1 is turned on and the second shut-off valve JZ2 is turned off. The oil is transported to the oil cylinder 133 through the first port P of the solenoid directional valve 1341 and the first cartridge valve YV3. Under the action of gravity, the piston rod 1332 descends and the flap door closes. The stroke sensor 181 detects that the piston rod 1332 has reached the designated position. The motor 120 is turned off, the first electromagnet YV1 of the solenoid directional valve 1341 is turned off and the first shut-off valve JZ1 is turned off, thus realizing the full closing of the flap door.

[0058] The manual emergency shutdown condition is described in detail as follows: Initially, the flap gate is open; the power button on the electrical control box 140 is on; the first solenoid YV1 of the solenoid directional valve 1341 is not on; the second solenoid YV2 of the solenoid directional valve 1341 is not on; the travel sensor 181 is not working; both the first cartridge valve YV3 and the second cartridge valve YV4 are not on; and both the first shut-off valve JZ1 and the second shut-off valve JZ2 are on. In an emergency, both the first shut-off valve JZ1 and the second shut-off valve JZ2 are on, achieving rapid flow interruption protection.

[0059] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A flap gate control device, characterized in that, include: frame; Electric motor; A hydraulic control module includes an emergency control valve, a control valve module, an oil tank, and a cylinder. The cylinder includes a cylinder body and a piston rod. The cylinder body is mounted on the frame, and the piston rod is used to move up and down along the cylinder body. The oil tank is connected to the cylinder through the control valve module and the emergency control valve. The control valve module further includes a first shut-off valve, a second shut-off valve, and a first cartridge valve. The first port of the first shut-off valve is connected to the oil tank, the first port of the second shut-off valve is connected to the second port of the first shut-off valve and the first cartridge valve, and the second port of the second shut-off valve is connected to the rod chamber of the cylinder. The pulley block module includes a lifting pulley block, a multiplier pulley block, a wire rope, and a rigging. The lifting pulley block is located at the top end of the hydraulic cylinder and can make corresponding displacement movements following the extension and retraction of the piston rod. The multiplier pulley block is mounted on the frame. After the wire rope wraps around the lifting pulley block and the multiplier pulley block, it is looped around the lifting pulley block, the multiplier pulley block, or the frame by the rigging. The controller is electrically connected to the pulley block module, the emergency control valve, the control valve module, and the motor.

2. The flap gate control device according to claim 1, characterized in that, The pulley block module also includes a steering pulley block, which is located below the frame and is connected to the lifting pulley block via the wire rope.

3. The flap gate control device according to claim 2, characterized in that, The pulley block module also includes a balance pulley block, which is connected to the steering pulley block or the lifting pulley block via the wire rope.

4. The flap gate control device according to any one of claims 1-3, characterized in that, The control valve module includes an overflow valve, a solenoid directional valve, a one-way throttle valve, a throttle valve, a filter screen, an oil pump, and a second cartridge valve. The first port of the solenoid directional valve is connected to the oil tank through the overflow valve, and the second port of the second cartridge valve is connected to the rodless chamber of the cylinder through the throttle valve. The third port of the solenoid directional valve is connected to the rodless chamber of the cylinder through the one-way throttle valve and the first cartridge valve. The fourth port of the solenoid directional valve is connected to the rod chamber of the cylinder. The oil pump is connected to the first port of the filter screen, the motor, and the first port of the solenoid directional valve, respectively. The second port of the filter screen is connected to the oil tank.

5. The flap gate control device according to any one of claims 1-3, characterized in that, It also includes a stroke control module, which includes a stroke sensor and a support frame. The support frame is fixedly connected to the hydraulic cylinder. There are multiple stroke sensors, all of which are mounted on the support frame and connected to the piston rod.

6. The flap gate control device according to any one of claims 1-3, characterized in that, It also includes a rod-shaped oil delivery pipe and a rodless oil delivery pipe. One end of the rod-shaped oil delivery pipe is connected to the emergency control valve through the rodless oil delivery pipe, and the other end of the rod-shaped oil delivery pipe is connected to the rod-shaped chamber of the oil cylinder.

7. The flap gate control device according to any one of claims 1-3, characterized in that, The control valve module also includes a level gauge, which is connected to the oil tank.

8. The flap gate control device according to claim 4, characterized in that, The control valve module also includes a check valve, which is located between the first port of the electromagnetic directional valve and the oil pump.

9. The flap gate control device according to claim 8, characterized in that, The control valve module also includes a pressure gauge, which is connected to the check valve, the relief valve and the oil pump respectively.

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