A hydraulic system for a horizontal rotation floodgate

Abstract

The present invention relates to the field of hydraulic technology, and discloses a hydraulic system for a swing type flood-proof door, comprising a plurality of drive systems. The plurality of drive systems are respectively controlled and connected with a main oil cylinder, a latch oil cylinder and a hydraulic motor on the swing type flood-proof door, and two drive systems are connected with the main oil cylinder, and each drive system comprises: a first oil supply brake module, a detection module and a first pressure regulating module; the main oil cylinder is connected to a hydraulic oil tank with an oil supply pipeline and an oil return pipeline through the first oil supply brake module, the detection module and the first pressure regulating module in sequence; the main oil cylinder 1 and the hydraulic motor 3 are controlled to drive the flood-proof door to open and close, and the latch oil cylinder 2 is driven to fix the flood-proof door, thereby ensuring that the flood-proof door system can operate efficiently and stably in a complex and changeable environment, and also improving the overall reliability and response speed of the hydraulic system through multi-level module control.

Description

Technical Field

[0001] The invention relates to the field of hydraulic technology, and in particular to a hydraulic system for a flat-swinging anti-flooding door. Background Art

[0002] With the improvement of urban economic development level and the expansion of construction scale, as well as the reasonable increase in the development and utilization of underground space, the construction of air defense underground space has become the main body of new civil air defense projects at present and in the future. With the development of urban economy, subway civil air defense is increasingly connected with commercial centers, resulting in the need for civil air defense projects to take into account more functions, such as flood prevention. As the size of cities increases, rainfall cannot be quickly discharged from cities, resulting in more and more cities being affected by floods and waterlogging disasters. This requires civil air defense projects to have relatively good flood prevention functions, and to protect personnel and equipment facilities in the subway through emergency flood prevention.

[0003] Existing subway flood prevention doors mainly include three structures: swing type, lifting type and push type. Among them, the lifting type flood prevention door requires an equipment room larger than the door opening to be set above the door opening. The clearance of the equipment room is relatively high. When the gate is manually controlled to close in an emergency, the unlocking is complicated, and the gate falls without buffering, which is easy to damage the track and roadbed, resulting in increased maintenance costs; and the commonly used driving modes of the swing type flood prevention door are mainly manual opening, motor driving or hydraulic driving. Among them, manual opening is time-consuming and labor-intensive, and it is extremely dangerous to operate the equipment under high head pressure. The main disadvantage of the motor driving method is that the system waterproofing treatment is relatively complicated, and the reliability in the flooded state cannot be guaranteed. Relatively speaking, hydraulic drive is the most scientific method, but the use of hydraulic drive also has risks such as power supply cutoff and pump station mechanical failure and inability to start, which affects the opening and closing of the flood prevention door.

[0004] In view of the structural characteristics of flood-proof doors, the industry has conducted relevant research and design, such as a hydraulic system for a flat-opening, vertical-rotating protective, sealed and flood-proof door. The flood-proof door is opened and closed by driving an engineering cylinder and a hydraulic motor, and is fixed by driving a pull rod cylinder. This enables the flat-opening, vertical-rotating protective, sealed and flood-proof door to be quickly and safely closed when water enters the subway tunnel.

[0005] However, since the equipment's tie rod cylinder is directly connected to the oil tank through a pipeline, there is no grading system for graded unloading of hydraulic oil, resulting in the hydraulic system being able to unload pressure only when the preset maximum pressure threshold is reached. This may cause the flood control gate to react more slowly during its opening and closing process, making it unable to quickly adapt to sudden changes in water levels, thus affecting flood control efficiency. Summary of the invention

[0006] In order to solve the above-mentioned problems in the prior art, the present invention provides a hydraulic system for a horizontally rotating anti-flooding door.

[0007] A hydraulic system for a horizontally rotating flood-proof door, comprising a plurality of drive systems, wherein the plurality of drive systems are respectively connected to a main oil cylinder, a latch oil cylinder and a hydraulic motor on the horizontally rotating flood-proof door;

[0008] The master cylinder is connected to two drive systems, each of which includes: a first oil supply brake module, a detection module and a first pressure regulating module; the master cylinder is connected to the hydraulic oil tank through the first oil supply brake module, the detection module and the first pressure regulating module in sequence with the oil supply pipeline and the oil return pipeline;

[0009] The driving system connected to the latch cylinder includes: a second oil supply brake module and a second pressure regulating module; the latch cylinder is connected to the hydraulic oil tank through the second oil supply brake module and the second pressure regulating module, and the oil supply pipeline and the oil return pipeline in sequence;

[0010] The driving system connected to the hydraulic motor includes: a third oil supply brake module and a third pressure regulating module; the latch cylinder is connected to the hydraulic oil tank through the third oil supply brake module and the third pressure regulating module and the oil supply pipeline and the oil return pipeline in turn.

[0011] Preferably, the electromagnetic reversing valve of the first oil supply brake module is provided with a plurality of ports;

[0012] The first port and the second port of the electromagnetic reversing valve are connected to the rod chamber and the rodless chamber of the master cylinder through the hydraulically controlled one-way valve and the one-way throttle valve respectively.

[0013] The third port of the electromagnetic reversing valve is connected to the hydraulic oil tank through the multi-pump system;

[0014] The fourth port of the electromagnetic reversing valve is connected to the hydraulic oil tank through an oil return pipeline.

[0015] Preferably, the electromagnetic reversing valve of the second oil supply brake module is also provided with a plurality of ports;

[0016] The first port and the second port of the electromagnetic reversing valve are connected to the rod chamber and the rodless chamber of the latch cylinder through the hydraulically controlled one-way valve and the one-way throttle valve respectively.

[0017] The third port of the electromagnetic reversing valve is connected to the hydraulic oil tank through the multi-pump system;

[0018] The fourth port of the electromagnetic reversing valve is connected to the hydraulic oil tank through an oil return pipeline.

[0019] Preferably, the electromagnetic reversing valve of the third oil supply brake module is also provided with a plurality of ports;

[0020] The first port and the second port of the electromagnetic reversing valve are connected to the hydraulic motor through a hydraulically controlled one-way valve and a one-way throttle valve respectively.

[0021] The third port of the electromagnetic reversing valve is connected to the hydraulic oil tank through the multi-pump system;

[0022] The fourth port of the electromagnetic reversing valve is connected to the hydraulic oil tank through an oil return pipeline.

[0023] Furthermore, the first oil supply brake module, the second oil supply brake module and the third oil supply brake module are all the same oil supply brake module;

[0024] The oil supply brake module comprises a one-way throttle valve and an electromagnetic reversing valve. The one-way throttle valve is respectively arranged on the oil supply pipeline and the oil return pipeline, and the electromagnetic reversing valve is respectively arranged on the oil supply pipeline and the oil return pipeline.

[0025] Furthermore, a multi-pump system is provided between the multiple drive systems and the hydraulic oil tank, and the multi-pump system includes a plurality of hydraulic pumps and a drive motor; a plurality of hydraulic pumps are provided on the oil supply pipeline, and the drive motor is connected to the hydraulic pump.

[0026] Furthermore, the detection module is a pressure gauge, a pressure measuring and exhaust joint is provided on the oil supply pipeline, and the pressure gauge is detachably connected to the pressure measuring and exhaust joint.

[0027] Furthermore, an air filter and a liquid level gauge are also provided in the hydraulic oil tank.

[0028] Furthermore, the oil supply pipeline and the oil return pipeline are connected to the rod chamber and the rodless chamber of the master cylinder and the latch cylinder respectively, and the rod chamber and the rodless chamber of the master cylinder and the latch cylinder are also connected to the hydraulic oil tank through a high-pressure three-way valve.

[0029] Furthermore, the hydraulic motor is connected to the anti-flood door through a transmission device, and the anti-flood door is driven by the power of the hydraulic motor to move along a predetermined track to open and close.

[0030] Preferably, the hydraulic motor is also connected in parallel with a manual pump, and both are connected to the flood-proof door through a transmission device (such as a gear box, chain, connecting rod mechanism, etc.). The rotational motion of the hydraulic motor and the manual pump is transmitted to the flood-proof door through these transmission mechanisms, causing it to move along a predetermined track.

[0031] Furthermore, the first pressure regulating module and the second pressure regulating module are stacked relief valves, and the low-pressure outlet and the high-pressure outlet of the stacked relief valve are respectively connected to the oil return pipeline.

[0032] Preferably, the third pressure regulating modules are also stacked overflow valves, which are respectively arranged on the oil supply pipeline and the oil return pipeline connected to the hydraulic motor, and the oil return pipeline is connected to the oil supply pipeline and the pressure outlet end of the connected stacked overflow valve, and the oil supply pipeline is connected to the oil return pipeline and the pressure outlet end of the connected stacked overflow valve.

[0033] Furthermore, an electromagnetic overflow valve is provided between the multiple drive systems and the hydraulic oil tank, and the electromagnetic overflow valve is also connected to the oil supply pipeline and the oil return pipeline.

[0034] Preferably, the inlet of the electromagnetic overflow valve is connected to the oil supply pipeline, and the high-pressure outlet thereof is connected to the oil return pipeline.

[0035] Furthermore, an oil suction filter is provided between the oil supply pipeline and the hydraulic oil tank, and an oil return filter is provided between the oil return pipeline and the hydraulic oil tank.

[0036] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0037] ① Connecting the multi-pump system to the main cylinder can provide the most suitable hydraulic power for the main cylinder;

[0038] The multi-pump system includes several hydraulic pumps and drive motors. When the anti-flood door is opened and closed normally, the main cylinder does not need to work at full load. It can only drive a single or several hydraulic pumps through the drive motor. A single or several hydraulic pumps can provide appropriate flow and pressure, which can save energy, reduce wear and reduce noise, while meeting the flow and pressure required for daily operations. When water enters the subway tunnel and needs to be closed quickly and safely, the main cylinder needs to provide high pressure. All hydraulic pumps can be linked by the drive motor to work in parallel to realize the output of the multi-pump system and supply oil to the system together. This design greatly increases the output of hydraulic oil per unit time, thereby quickly increasing the system pressure and ensuring that the anti-flood door can withstand strong water pressure and achieve rapid and safe closure.

[0039] ② Connecting the drive system to the latch cylinder can ensure that the flood-proof door is tightly closed to prevent water leakage;

[0040] The latch cylinder is connected to the hydraulic oil tank through the second oil supply brake module and the second pressure regulating module. When the anti-flood door needs to be closed urgently, the main oil circuit is quickly cut off through the second oil supply brake module. At the same time, the built-in braking mechanism prevents the cylinder from exceeding the stroke due to inertia, ensuring the precise positioning of the cylinder and making the anti-flood door stop at the required position instantly, thereby ensuring that the anti-flood door is tightly closed; as the external water pressure changes, the second pressure regulating module can automatically adjust the output pressure to compensate for the sealing gap caused by the change in water pressure, further preventing water leakage outside the anti-flood door.

[0041] ③ Connect the drive system to the hydraulic motor, and drive the transmission device through the hydraulic motor to close the flood control door tightly;

[0042] The hydraulic motor is connected to the hydraulic oil tank through the third oil supply brake module and the third pressure regulating module, thereby driving the hydraulic motor to rotate. The anti-flood door is driven to move along a predetermined track for opening and closing by the power of the hydraulic motor, thereby very accurately controlling the speed and output torque of the hydraulic motor, achieving smooth acceleration and deceleration during the closing process of the anti-flood door, and quickly stopping when necessary, ensuring that the anti-flood door is accurately in place and forms a good seal.

[0043] ④ The hydraulic motor and the manual pump are designed in parallel and connected to the anti-flood door through a transmission device. The hydraulic motor serves as the main driving force to ensure that the anti-flood door can be opened or closed quickly and automatically when the power supply is normal; the manual pump is directly connected to the hydraulic circuit, and the rotary motion can be converted into the linear motion of the door body through a simple mechanical structure (such as gears, chains, connecting rods, etc.). When the power system fails or needs to be operated in an off-electric environment, the hydraulic system can be powered by manual hand-cranking, which is convenient for non-professionals to operate in an emergency, lowering the operating threshold and ensuring that the anti-flood door can be controlled at any time, thereby effectively ensuring the safe closure of the anti-flood door. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 It is a schematic diagram of the hydraulic system for the swing-type flood-proof door;

[0046] Figure 2 It is a schematic diagram of the connection between the master cylinder and the drive system;

[0047] Figure 3 It is a schematic diagram of the connection between the latch cylinder and the drive system;

[0048] Figure 4 It is a schematic diagram of the connection between the hydraulic motor and the drive system;

[0049] Figure 5 It is a schematic diagram of the hydraulic oil tank.

[0050] The reference numerals are as follows:

[0051] 1. Main oil cylinder;

[0052] 2. Latch cylinder;

[0053] 3. Hydraulic motor;

[0054] 4. Hydraulic oil tank;

[0055] 5. First oil supply brake module;

[0056] 6. Detection module;

[0057] 7. A first pressure regulating module;

[0058] 8. Oil supply pipeline;

[0059] 9. Oil return pipeline;

[0060] 10. Second oil supply brake module;

[0061] 11. A second pressure regulating module;

[0062] 12. Third oil supply brake module;

[0063] 13. The third pressure regulating module;

[0064] 14. Multiple pump system; 1401. Hydraulic pump; 1402. Driving motor;

[0065] 15. Air filter;

[0066] 16. Liquid level gauge;

[0067] 17. Oil suction filter;

[0068] 18. Oil return filter;

[0069] 19. High pressure three-way valve. DETAILED DESCRIPTION

[0070] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the described embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0071] Unless otherwise defined, the technical terms or scientific terms used in this application shall have the ordinary meanings as understood by those of ordinary skill in the art to which this application pertains. The terms "first", "second" and similar terms used in this application do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0072] Embodiment 1

[0073] As Figure 1-5 shown, this embodiment discloses a hydraulic system for a swing-type floodgate, which includes multiple groups of drive systems. The multiple groups of drive systems are respectively connected to the main cylinder 1, the bolt cylinder 2 and the hydraulic motor 3 on the swing-type floodgate for control connection;

[0074] Two groups of drive systems are connected to the main cylinder 1. Each group of drive systems includes: a first oil supply and braking module 5, a detection module 6 and a first pressure regulation module 7; the main cylinder 1 is successively connected to the oil supply pipeline 8 and the oil return pipeline 9 and communicated with the hydraulic oil tank 4 through the first oil supply and braking module 5, the detection module 6 and the first pressure regulation module 7;

[0075] The drive system connected to the bolt cylinder 2 includes: a second oil supply and braking module 10 and a second pressure regulation module 11; the bolt cylinder 2 is successively connected to the oil supply pipeline 8 and the oil return pipeline 9 and communicated with the hydraulic oil tank 4 through the second oil supply and braking module 10 and the second pressure regulation module 11;

[0076] The drive system connected to the hydraulic motor 3 includes: a third oil supply and braking module 12 and a third pressure regulation module 13; the bolt cylinder 2 is successively connected to the oil supply pipeline 8 and the oil return pipeline 9 and communicated with the hydraulic oil tank 4 through the third oil supply and braking module 12 and the third pressure regulation module 13.

[0077] For a swing-type floodgate, it can be installed in an underground garage or a tunnel to open and close to achieve airtight partition, and can achieve rapid and safe closing when the underground garage or tunnel is flooded.

[0078] When working, the multi-pump system 14 is driven, and the high pressure causes the hydraulic oil in the hydraulic oil tank 4 to flow into the oil supply pipeline 8. The hydraulic oil in the oil supply pipeline 8 enters the rodless chamber of the master cylinder 1 through the first oil supply brake module 5, pushing the piston rod to move toward the end of the rod chamber of the master cylinder 1. The hydraulic oil in the rod chamber of the master cylinder 1 flows back to the hydraulic oil tank 4 through the return oil pipeline 9.

[0079] When the anti-flood door is opened and closed normally, the main oil cylinder 1 does not need to work at full load, and can only drive several hydraulic pumps 1401 of the multi-pump system 14. One or several hydraulic pumps 1401 can provide appropriate flow and pressure, which can save energy, reduce wear and tear, and reduce noise, while meeting the flow and pressure required for daily operation;

[0080] When the underground garage or tunnel is flooded and needs to be closed quickly and safely, the main oil cylinder 1 needs to provide high pressure. It can drive all the hydraulic pumps 1401 of the multi-pump system 14 to work in parallel to realize the output of the multi-pump system 14 and jointly supply oil to the hydraulic system. This design greatly increases the output of hydraulic oil per unit time, thereby quickly increasing the system pressure and ensuring that the anti-flood door can withstand strong water pressure and achieve rapid and safe closure;

[0081] By controlling the main cylinder 1 and the hydraulic motor 3 to drive the flood control door to open and close, and driving the latch cylinder 2 to fix the flood control door, it is ensured that the flood control door system can operate efficiently and stably in a complex and changeable environment. In addition, the overall reliability and response speed of the hydraulic system are improved through multi-level module control. It is a sophisticated solution customized for flood control safety needs.

[0082] As a specific implementation, the first oil supply brake module 5, the second oil supply brake module 10 and the third oil supply brake module 12 are all the same oil supply brake module;

[0083] The oil supply brake module includes a one-way throttle valve and an electromagnetic reversing valve. The one-way throttle valve is respectively arranged on the oil supply pipeline 8 and the oil return pipeline 9, and the electromagnetic reversing valve is respectively arranged on the oil supply pipeline 8 and the oil return pipeline 9.

[0084] Specifically, when the master cylinder 1, latch cylinder 2 and hydraulic motor 3 need to be driven, the coil on one side of the electromagnetic reversing valve of the oil supply brake module is energized to perform line reversal, so that the pressure oil in the hydraulic oil tank 4 flows into the master cylinder 1, latch cylinder 2 and hydraulic motor 3 through the electromagnetic reversing valve, thereby improving the stability and consistency of the entire anti-flooding door system;

[0085] In addition, the same module design ensures full compatibility and interchangeability between oil supply brake modules in different locations. In an emergency, the module can be removed from one part of the system and installed in another required location, enhancing the flexibility of the system.

[0086] As a specific implementation, a multi-pump system 14 is provided between the multiple drive systems and the hydraulic oil tank 4, and the multi-pump system 14 includes several hydraulic pumps 1401 and drive motors 1402; several hydraulic pumps 1401 are provided on the oil supply pipeline 8, and the drive motor 1402 is connected to the hydraulic pump 1401.

[0087] Specifically, the electromagnetic reversing valve of the first oil supply brake module 5 is provided with a plurality of ports;

[0088] The first port and the second port of the electromagnetic reversing valve are connected to the rod chamber and the rodless chamber of the master cylinder 1 through the hydraulically controlled one-way valve and the one-way throttle valve respectively.

[0089] The third port of the electromagnetic reversing valve is connected to the hydraulic oil tank 4 through the multi-pump system 14;

[0090] The fourth port of the electromagnetic reversing valve is connected to the hydraulic oil tank 4 through the oil return line 9 .

[0091] When water inflow in an underground garage or tunnel requires rapid and safe closure, it is necessary to provide high pressure to the oil supply line 8 connected to the main oil cylinder 1, which can be fully output by driving the multi-pump system 14;

[0092] The solenoid reversing valve coil YV2 of the first oil supply brake module 5 is energized, and the pressure oil enters the hydraulically controlled one-way valve through the B port of the solenoid reversing valve, and enters the rodless chamber of the master cylinder 1 through the one-way throttle valve. The pressure of the rodless chamber of the master cylinder 1 is regulated by the overflow valve of the first pressure regulating module 7. The hydraulic oil in the rod chamber of the master cylinder 1 enters the A port of the solenoid reversing valve through the one-way throttle valve and the hydraulically controlled one-way valve of the first oil supply brake module 5 and returns to the T port, so that the piston rod of the master cylinder 1 extends, thereby driving the anti-flooding door to move and achieve rapid and safe closing.

[0093] As a specific implementation, the hydraulic motor 3 is connected to the anti-flood door through a transmission device, and the anti-flood door is driven by the power of the hydraulic motor 3 to move along a predetermined track to open and close.

[0094] Specifically, the electromagnetic reversing valve of the second oil supply brake module 10 is also provided with a plurality of ports;

[0095] The first port and the second port of the electromagnetic reversing valve are connected to the rod chamber and the rodless chamber of the latch cylinder 2 through the hydraulically controlled one-way valve and the one-way throttle valve respectively.

[0096] The third port of the electromagnetic reversing valve is connected to the hydraulic oil tank 4 through the multi-pump system 14;

[0097] The fourth port of the electromagnetic reversing valve is connected to the hydraulic oil tank 4 through the oil return line 9 .

[0098] When water enters the underground garage or tunnel and needs to be closed quickly and safely, it is necessary to provide high pressure to the oil supply pipeline 8 connected to the hydraulic motor 3, so as to drive the hydraulic motor 3 to rotate and drive the slide rod to open and close the flood-proof door;

[0099] The electromagnetic reversing valve YV6 of the second oil supply brake module 10 is energized, and the pressure oil enters the one-way throttle valve and the overflow valve of the second pressure regulating module 11 through the port A of the electromagnetic reversing valve, and then enters the hydraulic motor 3, thereby driving the hydraulic motor 3 to rotate forward to achieve rapid and safe opening;

[0100] By energizing the electromagnetic reversing valve coil YV7 of the second oil supply brake module 10, the pressure oil enters the one-way throttle valve and the overflow valve of the second pressure regulating module 11 through the B port of the electromagnetic reversing valve, and then enters the hydraulic motor 3, and the superimposed overflow valve enters the hydraulic motor 3, thereby driving the hydraulic motor 3 to rotate forward to achieve rapid and safe closure.

[0101] Specifically, the electromagnetic reversing valve of the third oil supply brake module 12 is also provided with a plurality of ports;

[0102] The first port and the second port of the electromagnetic reversing valve are connected to the hydraulic motor 3 through the hydraulically controlled one-way valve and the one-way throttle valve respectively.

[0103] The third port of the electromagnetic reversing valve is connected to the hydraulic oil tank 4 through the multi-pump system 14;

[0104] The fourth port of the electromagnetic reversing valve is connected to the hydraulic oil tank 4 through the oil return line 9 .

[0105] When the water pressure outside the underground garage or tunnel is high, it is necessary to provide high pressure to the oil supply pipeline 8 of the latch cylinder 2, so as to drive the slide rod of the latch cylinder 2 to extend and retract to stabilize the anti-flood door;

[0106] By energizing the electromagnetic reversing valve coil YV4 of the third oil supply brake module 12, the pressure oil enters the hydraulically controlled one-way valve and the superimposed overflow valve of the third pressure regulating module 13 through the A port of the electromagnetic reversing valve, and then enters the rodless chamber of the latch cylinder 2. The oil in the rod chamber of the latch cylinder 2 enters the B port of the electromagnetic reversing valve through the one-way throttle valve and the hydraulically controlled one-way valve, and returns to the T port, so that the piston rod of the latch cylinder 2 extends, which can generate a strong thrust on the anti-flooding door, increase the sealing pressure between the door body and the door frame, effectively resist the external high water pressure, prevent the door body from being displaced under the impact of water flow, ensure the stability of the anti-flooding door structure, and prevent accidental opening;

[0107] By energizing the electromagnetic reversing valve coil YV5 of the third oil supply brake module 12, the pressure oil enters the hydraulically controlled one-way valve and the superimposed overflow valve of the third pressure regulating module 13 through the B port of the electromagnetic reversing valve for pressure regulation, and then enters the rod chamber of the latch cylinder. The oil in the rodless chamber of the latch cylinder 2 enters the A port of the electromagnetic reversing valve through the one-way throttle valve and the hydraulically controlled one-way valve and returns to the T port, thereby retracting the piston rod of the latch cylinder 2 and opening the anti-flooding door.

[0108] Example 2

[0109] like Figure 1-5 As shown, this embodiment discloses a hydraulic system for a horizontally rotating flood-proof door, including multiple drive systems. The multiple drive systems are respectively controlled and connected with a main cylinder 1, a latch cylinder 2 and a hydraulic motor 3 on the horizontally rotating flood-proof door;

[0110] Two drive systems are connected to the master cylinder 1, each drive system includes: a first oil supply brake module 5, a detection module 6 and a first pressure regulating module 7; the master cylinder 1 is connected to the hydraulic oil tank 4 through the first oil supply brake module 5, the detection module 6 and the first pressure regulating module 7, the oil supply pipeline 8 and the oil return pipeline 9 in sequence;

[0111] The driving system connected to the latch cylinder 2 includes: a second oil supply brake module 10 and a second pressure regulating module 11; the latch cylinder 2 is connected to the hydraulic oil tank 4 through the second oil supply brake module 10 and the second pressure regulating module 11, the oil supply pipeline 8 and the oil return pipeline 9;

[0112] The driving system connected to the hydraulic motor 3 includes: a third oil supply brake module 12 and a third pressure regulating module 13; the latch cylinder 2 is connected to the hydraulic oil tank 4 through the third oil supply brake module 12 and the third pressure regulating module 13 and the oil supply pipeline 8 and the oil return pipeline 9 in turn.

[0113] As a specific implementation, the detection module 6 is a pressure gauge, and a pressure measuring and exhaust joint is provided on the oil supply pipeline 8. The pressure gauge is detachably connected to the pressure measuring and exhaust joint.

[0114] Specifically, the pressure gauge, as a direct pressure measurement tool, can display the hydraulic oil pressure in the oil supply pipeline 8 in real time, and can be used to detect the pressure of the hydraulic system. By monitoring the pressure value, it can be found in time whether the system is within the normal working pressure range, to prevent equipment damage or functional failure caused by excessively high or low pressure;

[0115] The setting of the pressure measuring and exhaust joint makes the pressure gauge detachable and connected, which greatly facilitates the daily inspection, maintenance and troubleshooting of the system; the pressure measuring and exhaust joint is also used for exhaust operations in the hydraulic system. If there is gas in the hydraulic oil circuit, cavitation may be caused, affecting the continuity of oil flow and the stability of the system. The air in the oil supply line 8 can be discharged after the system is initially filled with oil or repaired to ensure that the oil circuit is unobstructed and the system efficiency is improved.

[0116] As a specific implementation, an air filter 15 and a liquid level meter 16 are also provided in the hydraulic oil tank 4 .

[0117] Specifically, during the operation of the hydraulic system, the air inside the hydraulic oil tank 4 will flow in and out with the rise and fall of the oil level. The air may contain impurities such as moisture and dust. The air filter 15 can filter out these impurities to prevent them from entering the oil tank with the air and contaminating the hydraulic oil, thereby reducing the wear and performance impact of oil contamination on system components. It can also reduce the amount of air dissolved in the oil, which helps prevent cavitation in the hydraulic system. Cavitation can cause increased noise, increased vibration, and even damage to hydraulic components. The liquid level meter 16 is used to monitor the oil level in the hydraulic oil tank 4 in real time to ensure that the oil level is maintained at an appropriate level. It is also convenient for regular inspection of the loss of hydraulic oil and judgment of whether there are problems such as leakage.

[0118] As a specific implementation method, the oil supply pipeline 8 and the oil return pipeline 9 respectively connect the rod chamber and the rodless chamber of the master cylinder 1 and the latch cylinder 2. The rod chamber and the rodless chamber of the master cylinder 1 and the latch cylinder 2 are also connected to the hydraulic oil tank 4 through the high-pressure three-way valve 19.

[0119] Specifically, through the high-pressure three-way valve 19, the oil circuit can be flexibly switched as needed. When rain comes, the oil supply line 8 is connected to the main oil cylinder 1 and the latch oil cylinder 2 through the high-pressure three-way valve 19, so that the rodless chamber of the oil cylinder is supplied with oil to complete the opening action of the anti-flooding door; the oil return line 9 is connected to the main oil cylinder 1 and the latch oil cylinder 2 through the high-pressure three-way valve 19, so that the rod chamber of the oil cylinder is supplied with oil, and the hydraulic oil in the rodless chamber of the oil cylinder flows back to the hydraulic oil tank 4 to complete the closing action of the anti-flooding door; so that the rod chamber and the rodless chamber of the oil cylinder are alternately supplied with oil and returned with oil as needed to complete the opening and closing action of the anti-flooding door.

[0120] As a specific implementation, the first pressure regulating module 7 and the second pressure regulating module 11 are stacked relief valves, and the low-pressure outlet and the high-pressure outlet of the stacked relief valve are respectively connected to the oil return pipeline 9;

[0121] An electromagnetic overflow valve is also provided between the multiple drive systems and the hydraulic oil tank 4 , and the electromagnetic overflow valve is also connected to the oil supply pipeline 8 and the oil return pipeline 9 .

[0122] Specifically, the low-pressure outlet and the high-pressure outlet of the superimposed relief valve are respectively connected to the oil return pipeline 9. When the system pressure exceeds the preset value, the excess oil will be automatically guided back to the hydraulic oil tank 4 to avoid excessive pressure from damaging system components, thus playing the role of overload protection;

[0123] The superimposed relief valve can perform fine-scale graded regulation of the system pressure. The first pressure regulating module 7 can be set to the pressure threshold required for the normal operation of the flood control door, while the second pressure regulating module 11 serves as a higher level of pressure protection. In emergency situations requiring stronger closing force, the pressure at both ends of the master cylinder can be adjusted to protect the master cylinder as a safety valve, ensuring that the system can meet daily operation requirements.

[0124] As a specific implementation manner, an oil suction filter 17 is further provided between the oil supply pipeline 8 and the hydraulic oil tank 4 , and an oil return filter 18 is further provided between the oil return pipeline 9 and the hydraulic oil tank 4 .

[0125] Specifically, the oil suction filter 17 filters the oil before it is sucked into the hydraulic pump 1401, which can block impurities, pollutants and possible precipitated water in the oil tank, prevent these impurities from entering the hydraulic system, reduce the wear of the pump, valves and other precision components, and extend the service life of the system;

[0126] The return oil filter 18 is located on the return oil pipeline 9, and can capture the grinding debris and other pollutants generated during the oil circulation process, ensure that the oil returned to the oil tank is relatively clean, reduce the oil pollution cycle, and maintain the cleanliness of the entire hydraulic system.

[0127] Example 3

[0128] like Figure 1-5 As shown, this embodiment discloses a hydraulic system for a horizontally rotating flood-proof door, including multiple drive systems. The multiple drive systems are respectively controlled and connected with a main cylinder 1, a latch cylinder 2 and a hydraulic motor 3 on the horizontally rotating flood-proof door;

[0129] Two drive systems are connected to the master cylinder 1, each drive system includes: a first oil supply brake module 5, a detection module 6 and a first pressure regulating module 7; the master cylinder 1 is connected to the hydraulic oil tank 4 through the first oil supply brake module 5, the detection module 6 and the first pressure regulating module 7, the oil supply pipeline 8 and the oil return pipeline 9 in sequence;

[0130] The driving system connected to the latch cylinder 2 includes: a second oil supply brake module 10 and a second pressure regulating module 11; the latch cylinder 2 is connected to the hydraulic oil tank 4 through the second oil supply brake module 10 and the second pressure regulating module 11, the oil supply pipeline 8 and the oil return pipeline 9;

[0131] The driving system connected to the hydraulic motor 3 includes: a third oil supply brake module 12 and a third pressure regulating module 13; the latch cylinder 2 is connected to the hydraulic oil tank 4 through the third oil supply brake module 12 and the third pressure regulating module 13 and the oil supply pipeline 8 and the oil return pipeline 9 in turn.

[0132] Specifically, the hydraulic system of the present invention can realize two modes of electronically controlled hydraulic starting operation and manual operation at the same time. The manual operation mode can be used as a backup when the power line is damaged. A manual pump is also provided in the hydraulic system connected to the flat-swinging anti-flooding door. The manual pump is connected to the hydraulic motor 3. The manual pump is manually driven to drive the hydraulic motor 3 to rotate and drive the sliding rod to open and close the anti-flooding door. The hydraulic system can have an automatic / manual system. When one system fails, it can switch to another system to continue driving the work.

[0133] How it works

[0134] When working, the multi-pump system 14 is driven, and the high pressure causes the hydraulic oil in the hydraulic oil tank 4 to flow into the oil supply pipeline 8. The hydraulic oil in the oil supply pipeline 8 enters the rodless chamber of the master cylinder 1 through the first oil supply brake module 5, pushing the piston rod to move toward the end of the rod chamber of the master cylinder 1. The hydraulic oil in the rod chamber of the master cylinder 1 flows back to the hydraulic oil tank 4 through the return oil pipeline 9.

[0135] When the anti-flood door is opened and closed normally, the main oil cylinder 1 does not need to work at full load, and can only drive several hydraulic pumps 1401 of the multi-pump system 14. One or several hydraulic pumps 1401 can provide appropriate flow and pressure, which can save energy, reduce wear and tear, and reduce noise, while meeting the flow and pressure required for daily operation;

[0136] When water enters an underground garage or tunnel and needs to be closed quickly and safely, the main oil cylinder 1 needs to provide high pressure. It can achieve the output of the multi-pump system 14 by driving all the hydraulic pumps 1401 of the multi-pump system 14 to work in parallel and supply oil to the hydraulic system together. This design greatly increases the output of hydraulic oil per unit time, thereby quickly increasing the system pressure and ensuring that the flood-proof door can withstand strong water pressure and achieve rapid and safe closure.

[0137] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A hydraulic system for a horizontally rotating flood-proof door, comprising a plurality of drive systems, characterized in that: The multiple drive systems are respectively connected to the main oil cylinder (1), the latch oil cylinder (2) and the hydraulic motor (3) on the horizontally rotating flood prevention door; Two drive systems are connected to the master cylinder (1), each drive system comprising: a first oil supply brake module (5), a detection module (6) and a first pressure regulating module (7); the master cylinder (1) is connected to the hydraulic oil tank (4) through the first oil supply brake module (5), the detection module (6) and the first pressure regulating module (7) in sequence with an oil supply pipeline (8) and an oil return pipeline (9); The drive system connected to the latch cylinder (2) comprises: a second oil supply brake module (10) and a second pressure regulating module (11); the latch cylinder (2) is connected to the hydraulic oil tank (4) through the second oil supply brake module (10) and the second pressure regulating module (11) in sequence with the oil supply pipeline (8) and the oil return pipeline (9); The drive system connected to the hydraulic motor (3) comprises: a third oil supply brake module (12) and a third pressure regulating module (13); the latch cylinder (2) is connected to the hydraulic oil tank (4) through the third oil supply brake module (12) and the third pressure regulating module (13) and the oil supply pipeline (8) and the oil return pipeline (9) in sequence; The first oil supply brake module (5), the second oil supply brake module (10) and the third oil supply brake module (12) are all the same oil supply brake module; The oil supply brake module comprises a one-way throttle valve and an electromagnetic reversing valve, wherein the one-way throttle valve is respectively arranged on the oil supply pipeline (8) and the oil return pipeline (9), and the electromagnetic reversing valve is respectively arranged on the oil supply pipeline (8) and the oil return pipeline (9).

2. The hydraulic system for a horizontally rotating flood-proof door according to claim 1, characterized in that: A multi-pump system (14) is provided between the multiple drive systems and the hydraulic oil tank (4), and the multi-pump system (14) includes a plurality of hydraulic pumps (1401) and a drive motor (1402); a plurality of hydraulic pumps (1401) are provided on the oil supply pipeline (8), and the drive motor (1402) is connected to the hydraulic pump (1401).

3. The hydraulic system for a horizontally rotating flood-proof door according to claim 1, characterized in that: The detection module (6) is a pressure gauge, and a pressure-measuring and exhaust joint is provided on the oil supply pipeline (8). The pressure gauge is detachably connected to the pressure-measuring and exhaust joint.

4. The hydraulic system for a horizontally rotating flood-proof door according to claim 1, characterized in that: An air filter (15) and a liquid level meter (16) are also provided in the hydraulic oil tank (4).

5. The hydraulic system for a horizontally rotating flood-proof door according to claim 1, characterized in that: The oil supply pipeline (8) and the oil return pipeline (9) are respectively connected to the rod chamber and the rodless chamber of the master cylinder (1) and the latch cylinder (2); the rod chamber and the rodless chamber of the master cylinder (1) and the latch cylinder (2) are also connected to the hydraulic oil tank (4) via a high-pressure three-way valve (19).

6. The hydraulic system for a horizontally rotating flood-proof door according to claim 1, characterized in that: The hydraulic motor (3) is connected to the flood prevention door via a transmission device, and the power of the hydraulic motor (3) drives the flood prevention door to move along a predetermined track to open and close.

7. The hydraulic system for a horizontally rotating flood-proof door according to claim 1, characterized in that: The first pressure regulating module (7) and the second pressure regulating module (11) are stacked overflow valves, and the low-pressure outlet and the high-pressure outlet of the stacked overflow valve are respectively connected to the oil return pipeline (9).

8. The hydraulic system for a horizontally rotating flood-proof door according to claim 1, characterized in that: An electromagnetic overflow valve is also provided between the multiple drive systems and the hydraulic oil tank (4), and the electromagnetic overflow valve is also connected to the oil supply pipeline (8) and the oil return pipeline (9).

9. The hydraulic system for a horizontally rotating flood-proof door according to claim 1, characterized in that: An oil suction filter (17) is also provided between the oil supply pipeline (8) and the hydraulic oil tank (4), and an oil return filter (18) is also provided between the oil return pipeline (9) and the hydraulic oil tank (4).

Images