Flexible blocking system for tunnel portal

Abstract

The invention relates to the technical field of traffic safety protection, and discloses a tunnel portal flexible blocking system which comprises a water curtain generation system which is arranged on a portal frame of a tunnel portal, is composed of an efficient spray head, a water storage tank, a liquid level sensor and a controller and is used for rapidly forming a flexible water curtain barrier to slow down the vehicle speed and providing visual warning. The water source is taken from a tunnel leakage water discharge system and ensures the water quality through a filtering device; the flexible barrier gate system is installed near a tunnel entrance and is of a structure that an aluminum alloy core column wraps a foam material. A flexible water curtain barrier can be rapidly formed in emergency through the water curtain generation system, and the effects of blocking vehicles and preventing further accident expansion are achieved. The automatic design enables the water curtain barrier to be formed within second-level time, the water curtain barrier can be closed at a low speed in emergency, vehicles are flexibly intercepted, and damage to the vehicles and system equipment is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of traffic safety protection, and in particular to a flexible blocking system for a tunnel entrance. Background Art

[0002] With the rapid development of modern transportation networks, the application scope of highway tunnels is constantly expanding. As a special traffic node, tunnels often face higher safety risks in emergencies due to their narrow space, insufficient light and limited ventilation conditions. Once an accident occurs, it may cause traffic jams, secondary accidents and even major casualties, bringing huge challenges to traffic management and rescue work.

[0003] Existing tunnel entrance protection measures are usually based on rigid interception devices and manual command, such as rigid barriers or physical barriers. Although such devices can intercept vehicles, their rigid structures may cause serious physical damage to out-of-control vehicles, increasing the risk of secondary accidents. At the same time, information warning devices usually operate independently and cannot be effectively linked with other interception devices, making it difficult to form rapid and effective all-round protection in the early stages of an accident.

[0004] In addition, existing systems generally have problems with insufficient adaptability and reliability. For example, rigid barriers have limited effectiveness in complex terrain or special weather conditions such as low visibility and foggy environments. Water curtain barriers are prone to nozzle blockage due to the lack of a stable water source filtration mechanism. The display content of the information warning system is difficult for drivers to clearly identify when lighting conditions are poor. These problems directly affect the emergency response speed and operational stability of the tunnel entrance protection system.

[0005] Based on the above problems, there is an urgent need for a flexible blocking system for tunnel entrances that integrates flexible interception devices, efficient warning systems, and intelligent linkage control. The system should not only have rapid response capabilities, but also operate reliably in complex environments, effectively reduce the risk of secondary accidents through flexible structures and intelligent linkage, and provide accurate and real-time command support for traffic management. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a flexible blocking system for a tunnel entrance, which solves the problem that the existing rigid barriers have limited effectiveness in complex terrain or special weather conditions such as low visibility or foggy environments.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a flexible blocking system at a tunnel entrance, comprising: The water curtain generation system is installed on the gantry at the tunnel entrance. It consists of a high-efficiency sprinkler, a water storage tank, a liquid level sensor and a controller. It is used to quickly form a flexible water curtain barrier to slow down the vehicle speed and provide a visual warning. The water source is taken from the tunnel leakage drainage system and passes through a filtering device to ensure water quality; The flexible barrier system is installed near the tunnel entrance and adopts a structure of aluminum alloy core column wrapped with foam material. The barrier rod has flexible energy absorption characteristics, is hinged to the base and has an automatic reset function; Information warning system, including sound and light alarms, integrated traffic warning lights and F-type variable information boards installed at tunnel entrances and on both sides of the road, used to guide and warn drivers through dynamic displays, lights and alarm sounds; The control system is connected to the remote command center through the wireless communication module to monitor and adjust the system status in real time, realizing the linkage control of the water curtain generation system, flexible barrier system and information warning system.

[0008] Preferably, the high-efficiency nozzle of the water curtain generating system adopts a DN10 universal DC nozzle, and the spray pressure range is 50KPa to 150KPa. The water storage tank of the water curtain generating system is made of stainless steel and has a capacity of 6000L. A liquid level sensor and a solenoid valve are configured inside the water storage tank. The liquid level sensor is used to monitor the water level height, and the solenoid valve is used to control the water replenishment pump to perform water replenishment operations.

[0009] Preferably, the gate rod of the flexible gate system adopts a composite structure of an aluminum alloy core column wrapped with a foam material, the density of the foam material is 50kg / m³ to 70kg / m³, the diameter of the aluminum alloy core column is 25mm to 30mm, and the outer surface is covered with a PVC film with a reflective function.

[0010] Preferably, the light source wavelength of the integrated traffic warning light in the information warning system is 625nm for red light, 510nm for green light and 470nm for blue light. Each module of the integrated traffic warning light contains 198 LED lamp beads, with a rated power of 18W and a waterproof grade of IP66.

[0011] Preferably, the control system includes a main controller, a communication module and a sensor interface module. The communication module performs signal interaction with the information warning system, the flexible barrier system and the water curtain generation system through the RS-485 protocol to support status monitoring and command transmission.

[0012] Preferably, the filtering device of the water curtain generating system adopts a multi-layer mesh filtering structure with a filtering accuracy of 50 microns to 100 microns, which is used to remove impurities in the water.

[0013] Preferably, the driving device of the flexible barrier system adopts a brushless DC motor with a motor power of 50W to 100W and a built-in mechanical self-locking gear mechanism. The gate rod opening or closing speed can be adjusted to a maximum of 10 seconds.

[0014] Preferably, the display size of the F-type variable information board of the information warning system is 3.2M×1.6M, the pixel module specification is 32×16, the resolution of a single module display screen is 96×48 pixels, the pixel pitch is 33.5mm, and the display module power consumption is less than 12W. The F-type variable information board supports dynamic traffic information display, and its display screen brightness is ≥8,000cd / m².

[0015] Preferably, the composite structure of the flexible barrier is connected to the base via a stainless steel hinge, the hinge has a design load of 100kg to 150kg, and has a sliding adjustment function to adapt to the installation environment.

[0016] Preferably, the module adopts a modular design, the mounting bracket is made of hot-dip galvanized steel, and the fixing point of the bracket can be adjusted in the range of 500mm to 1500mm.

[0017] The present invention provides a flexible blocking system for a tunnel entrance, which has the following beneficial effects: 1. The present invention can quickly form a flexible water curtain barrier in an emergency through the water curtain generation system, which plays a role in blocking vehicles and preventing further accidents from expanding. Its automated design enables the water curtain barrier to be formed within seconds, which saves precious time for emergency treatment. The flexible barrier system uses a flexible gate rod with foam material, which can be closed slowly in an emergency to flexibly intercept vehicles and reduce damage to vehicles and system equipment. The information warning system integrates sound and light alarms, integrated traffic lights and variable information boards, which can convey clear warning information to drivers through sound, light and text, forcing them to slow down or stop, effectively improving the efficiency of safety protection.

[0018] 2. The present invention connects the control system with the remote command center through the communication module to realize the linkage control of the water curtain generation system, the flexible barrier system and the information warning system, realizes real-time status monitoring and command transmission through the RS-485 protocol, and improves the response speed and operation convenience of the system.

[0019] 3. The information warning system of the present invention adopts a high-brightness integrated traffic warning light and an F-type variable information board that supports dynamic information display, providing drivers with multi-level and multi-form warning information to improve their attention and decision-making reaction speed. The integrated traffic warning light has an IP66 waterproof grade and UV protection performance, adapts to harsh environments, and ensures long-term reliable operation.

[0020] 4. The water storage tank of the water curtain generating system of the present invention is made of stainless steel material, which has high corrosion resistance. It is equipped with a liquid level sensor and a solenoid valve to realize water volume detection and automatic water replenishment to ensure the continuous operation of the system. The water curtain generating system is also equipped with a multi-layer grid filter device with a filtration accuracy of 50 microns to 100 microns, which prevents impurities in the water from clogging the nozzle and prolongs the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a system flow chart of the present invention. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Please see attached Figure 1 The embodiment of the present invention provides a flexible blocking system for a tunnel entrance, comprising: The water curtain generation system is installed on the gantry at the tunnel entrance. It consists of high-efficiency sprinklers, water storage tanks, liquid level sensors and controllers. It is used to quickly form a flexible water curtain barrier to slow down vehicles and provide visual warnings. The water source is taken from the fire water supply system and passes through a filtration device to ensure water quality. The flexible barrier system is installed near the tunnel entrance. It adopts a structure of aluminum alloy core column wrapped with foam material. The barrier rod has flexible energy absorption characteristics, hinged to the base and has automatic reset function. Information warning system, including sound and light alarms, integrated traffic warning lights and F-type variable information boards installed at tunnel entrances and on both sides of the road, used to guide and warn drivers through dynamic displays, lights and alarm sounds; The control system is connected to the remote command center through the wireless communication module to monitor and adjust the system status in real time, and realize the linkage control of the water curtain generation system, flexible barrier system and information warning system: In one embodiment, 1. Water curtain generating system Installation location: The water curtain generating system is installed on the gantry at the tunnel entrance, and its high-efficiency nozzles are evenly distributed on the gantry beams with a spacing of 50cm to 70cm to ensure the coverage of the water curtain.

[0024] High-efficiency nozzle: DN10 universal DC nozzle with a spray pressure of 3MPa. The nozzle is made of corrosion-resistant pure copper to ensure long-term operation without rust.

[0025] Water tank: The water tank is installed on the side of the tunnel. It is made of stainless steel and has a capacity of 6000L. It has an integrated liquid level sensor and solenoid valve to automatically adjust the water volume. The water tank is connected to the tunnel leakage drainage system through a multi-layer mesh filter device (filtration accuracy 50 microns) to filter impurities to protect the nozzle.

[0026] Controller: Installed near the water tank, responsible for receiving instructions and adjusting the spray intensity in real time.

[0027] 2. Flexible barrier system Installation location: The gate system is installed about 15 meters away from the tunnel entrance.

[0028] Composite structure barrier pole: The aluminum alloy core column is wrapped with anti-aging foam material (density 60kg / m³), the core column diameter is 28mm, and the outer layer is covered with a PVC film with reflective function. This structural design can absorb collision energy and improve the warning effect at night.

[0029] Driving device: Brushless DC motor with a power of 50W, which drives the gate bar to close smoothly within 10 seconds. It has a built-in mechanical self-locking gear mechanism to prevent the gate bar from loosening or rebounding when subjected to external force.

[0030] Mounting base and hinge: The hinge is made of stainless steel, with a design load of 120kg, and the sliding adjustment function allows the installation angle to be adjusted according to the terrain.

[0031] 3. Information warning system The integrated traffic warning lights are installed on one side of the tunnel entrance. There are 9 sets of them. The farthest one is 1,600 meters away from the tunnel entrance. The spacing increases with the distance from the tunnel entrance. The height of the equipment part from the ground is 3.5 meters. The F-type variable information board is installed 1,300 meters in front of the tunnel entrance.

[0032] Key components: Integrated traffic warning light: including flashing light panel module, "red cross green arrow" panel module and red and green dual-color LED display screen. The wavelength of the light source of the panel is 625nm for red light, 510nm for green light and 470nm for blue light. Each module contains 198 LED lamp beads. The lampshade is made of UV-proof PC material with IP66 waterproof grade, suitable for outdoor environment. The size of the LED display screen module is 320mm×160mm, and the power is <30W.

[0033] F-type variable information board: The display module has a resolution of 96×48 pixels, a pixel pitch of 33.5mm, and a brightness adjustment range of 800 to 1200cd / m². It can display text, graphics and dynamic traffic information.

[0034] 4. Control system The communication module (based on RS-485 protocol) is used to realize the linkage control of water curtain, gate and information warning system. The controller is set in the power distribution room at the tunnel entrance, which can be used for on-site command and operation at the tunnel entrance. At the same time, a remote client is deployed in the monitoring center of the railway company, which can start the entire system remotely with one click and support real-time status monitoring.

[0035] System operation process: Initial state: All modules are in standby mode, and the control system monitors the water level in the water tank, the operating status of the motor and the display status of the information warning system.

[0036] Emergency Start: When an accident occurs in the tunnel, the monitoring center sends instructions through the control system client, and the system starts the following process: The sound and light alarm and integrated traffic warning lights immediately sound an alarm and flash lights to attract the driver's attention, and the LED display shows "Stop Ahead".

[0037] The F-type variable information board displays "Accident ahead, no passage" or dynamic traffic guidance information.

[0038] Flexible interception: After the water curtain generation system is activated, the nozzles form a dense flexible water curtain barrier within 10 seconds, covering the entire lane and forcing vehicles to slow down and stop.

[0039] The flexible gate drive device is started and the gate rod is closed within 10 seconds, forming the last physical interception barrier at the tunnel entrance.

[0040] After the vehicles approaching the tunnel entrance gradually stop, the water curtain system and sound alarm can be turned off, leaving only the LED text prompt information and the gate still closed.

[0041] Continuous monitoring: The control system monitors the water level in the water tank in real time. If the liquid level sensor detects that the water level is lower than 50%, it immediately triggers the solenoid valve to replenish water.

[0042] The control system records the operating status of all modules through the communication module and sends it to the command center.

[0043] Release status: After the accident is resolved, the command center sends a command, the system opens the gate levers in sequence, the flashing lights turn off, the "red cross and green arrow" switches to a green pass arrow, and the text on the LED display switches to "accident contact slow passage" status.

[0044] In one embodiment, the water curtain is formed When the system receives the start command, the controller sends a signal to the water curtain generation system, and the liquid level sensor in the water tank first detects the current water level. If the liquid level is lower than the set value (for example, 50% of the water tank capacity), the controller will trigger the solenoid valve to automatically replenish water from the fire water supply system. During the water replenishment process, the water source passes through a multi-layer mesh filter device (with a filtration accuracy of 50 microns to 100 microns) to remove impurities and ensure that the nozzle is not blocked.

[0045] The high-efficiency nozzle adjusts the spray pressure (50KPa to 150KPa) through the controller, and sprays high-pressure water through a nozzle with a diameter of 4mm, forming a flexible water curtain barrier covering the tunnel entrance within 10 seconds. The water curtain barrier has a certain density and translucency, which can form a clear visual warning and slow down the speed of vehicles.

[0046] Water volume monitoring and water replenishment regulation The water tank is made of 6000L stainless steel with good corrosion resistance. The liquid level sensor monitors the water level in the water tank in real time. When the water level is lower than the set safety range, the controller will automatically open the solenoid valve to replenish the required amount of water until the water level reaches the safety range. The solenoid valve will automatically close after the water replenishment is completed to avoid water waste.

[0047] Real-time adjustment and system linkage The control system dynamically adjusts the injection pressure and injection angle according to the actual situation of the tunnel. For example, in the case of heavy fog or low visibility, the injection pressure can be adjusted to 150KPa to enhance the density and visual effect of the water curtain. At the same time, the water curtain generation system is linked with the information warning system and the flexible gate system to ensure that the water curtain barrier is activated when the vehicle approaches, forming a visual and physical dual interception effect.

[0048] The gate rod of the flexible gate system adopts a composite structure of an aluminum alloy core column wrapped with foam material. The density of the foam material is 50kg / m³ to 70kg / m³, the diameter of the aluminum alloy core column is 25mm to 30mm, and the outer surface is covered with a PVC film with reflective function.

[0049] The light source wavelengths of the integrated traffic warning light panel in the information warning system are 625nm for red light, 510nm for green light, and 470nm for blue light. Each panel module of the integrated traffic warning light contains 198 LED lamp beads, with a rated power of 18W and a waterproof grade of IP66.

[0050] The control system includes a main controller, a communication module and a sensor interface module. The communication module exchanges signals with the information warning system, the flexible barrier system and the water curtain generation system through the RS-485 protocol, and supports status monitoring and command transmission.

[0051] In one embodiment, 1. Working principle of the main controller Core functions: The main controller is the brain of the system, and presets the emergency response logic and linkage control rules of each module. When receiving the start or stop command from the remote command center, the main controller sends control signals to each module according to the preset logic.

[0052] Signal Processing: When an unexpected accident signal is detected, the remote monitoring center first activates the information warning system to remind the driver of the accident ahead with lights, alarms and texts; Then a command is sent to start the water curtain generation system, forming a flexible water curtain barrier, forcing approaching drivers to slow down and stop; Finally, close the flexible barrier to complete the physical interception, while leaving a parking space empty for accident rescue and repair vehicles to pass through.

[0053] 2. Working principle of communication module Signal interaction: The communication module uses the RS-485 protocol to exchange signals with the information warning system, flexible barrier system and water curtain generation system. The communication protocol supports high-speed and stable data transmission to ensure the real-time nature of command issuance and status monitoring.

[0054] The communication module is responsible for distributing the main controller's instructions to each module, such as starting the sprinkler, closing the gate lever, switching the information warning system display content, etc.

[0055] Status feedback: Collect the operating status data of each module, including the water level status and injection pressure of the water curtain system, the gate rod position of the flexible barrier, and the lighting and information board display status of the information warning system.

[0056] The status information is fed back to the main controller in real time and sent to the remote command center through the communication module for managers to view the working status of the system.

[0057] 3. Working principle of sensor interface module Data collection: The sensor interface module is responsible for collecting sensor data from each subsystem, such as the liquid level sensor signal in the water curtain generation system, the working status of the alarm horn, flashing light, and "red cross and green arrow" indicator light of the integrated traffic warning light, the motor operation status in the flexible barrier system, and the LED brightness signal in the information warning system.

[0058] Fault monitoring: The interface module analyzes the collected data in real time. If an abnormality is detected (such as low liquid level, insufficient injection pressure or the gate lever is not fully closed), the fault information is immediately transmitted to the main controller and an alarm is triggered.

[0059] 4. System linkage logic Start the process: When the main controller receives the start command, the communication module issues commands in the following order: Start the information warning system, turn on the sound and light alarm and integrated traffic warning lights, and the information board displays "No Passing" or dynamic warning information; Start the water curtain generating system to form a flexible water curtain barrier covering the tunnel entrance; Start the flexible barrier system and drive the barrier bar to close, forming a physical interception.

[0060] Monitoring and Feedback: The control system collects data in real time and feeds it back to the remote command center through the communication module. Managers can adjust system operating parameters according to the real-time status.

[0061] The filtering device of the water curtain generation system adopts a multi-layer grid filtering structure with a filtering accuracy of 50 microns to 100 microns to remove impurities in the water.

[0062] The driving device of the flexible barrier system adopts a brushless DC motor with a motor power of 50W to 100W, a built-in mechanical self-locking gear mechanism, and the gate rod can be opened or closed in 10 seconds.

[0063] The F-type variable information board of the information warning system has a display resolution of 128×64 pixels, a pixel pitch of 25mm, and a display module power consumption of less than 12W. The F-type variable information board supports dynamic traffic information display, and its display brightness can be adjusted from 800 to 1200cd / m².

[0064] The composite structure of the flexible barrier is connected to the base via stainless steel hinges, which are designed to carry a load of 100kg to 150kg and have a sliding adjustment function to suit the installation environment.

[0065] The module adopts modular design, the mounting bracket is made of hot-dip galvanized steel, and the fixing point of the bracket can be adjusted from 500mm to 1500mm.

[0066] In one embodiment, 1. Working principle of the water curtain generation system Filtration and injection: When the system is started, the water source is processed through a multi-layer mesh filter device with a filtration accuracy of 50 microns to 100 microns to remove impurities in the water, avoid nozzle clogging, and ensure the stability and uniformity of the injection.

[0067] After receiving the control signal, the high-efficiency nozzle sprays water at a set pressure (50KPa to 150KPa) through a 4mm diameter nozzle to form a high-density water curtain barrier, covering the tunnel entrance area.

[0068] Real-time monitoring and adjustment: The control system monitors the water level in the water tank through a liquid level sensor. If the water level is lower than the safe range, the solenoid valve is triggered to automatically replenish water to ensure the continuity of the injection process.

[0069] 2. Working principle of flexible barrier system Drive and action: The control system sends a signal to the drive device, and the DC brushless motor starts. The power range is 50W to 100W, and the gate rod is driven by a mechanical self-locking gear mechanism to quickly complete the closing or opening action (3 seconds to 5 seconds).

[0070] The mechanical self-locking gear ensures that the gate lever remains in a fixed position under external force to avoid accidental rebound or loosening.

[0071] Flexible energy absorption and reset: The barrier pole is composed of an aluminum alloy core column and a coated anti-aging foam material. It has flexible energy-absorbing properties and can effectively absorb impact force during vehicle collisions, reducing equipment damage.

[0072] The gate arm is connected to the base through a stainless steel hinge with a design load of 100kg to 150kg. The hinge has a sliding adjustment function, and the installation angle can be adjusted according to the specific terrain environment of the tunnel entrance.

[0073] 3. Working principle of information warning system Information display and guidance: The display size of the F-type variable information board is 3.2M×1.6M, the pixel module specification is 32×16, the resolution of a single module display is 128×64 pixels, and the pixel pitch is 33.5mm. It displays dynamic traffic information (such as "no passage due to accident ahead", "drive slowly after accident is resolved", etc.) through a high-brightness LED module (power consumption is less than 12W).

[0074] The brightness of the information board can be automatically adjusted within the range of 1200 to 8000cd / m² to adapt to strong light during the day and low light at night, ensuring that the driver can read the information clearly under different lighting conditions.

[0075] Comprehensive warning: The integrated traffic warning lights and sound and light alarms work together to enhance the driver's awareness of danger ahead with bright lights and alarm sounds.

[0076] 4. Modular design and working principle of mounting bracket Modular structure: Each module of the system (such as water curtain generation system, flexible barrier system, information warning system) adopts modular design, which is convenient for quick installation, replacement and maintenance.

[0077] Working principle: The flexible blocking system at the tunnel entrance realizes flexible interception, real-time warning and information guidance of vehicles at the tunnel entrance through the linkage of the water curtain generation system, flexible gate system, information warning system and control system. When the system is started, the control system receives the command of the remote command center through the wireless communication module and coordinates the work of each module through the RS-485 communication protocol. First, the information warning system is started, the sound and light alarm emits high-brightness lights and alarm sounds, the flashing lights of the integrated traffic warning lights start to work, and the alarm horn starts to broadcast the warning sound "Accident ahead, please slow down" or "Accident ahead, no passage", and the LED display screen synchronously displays the text "Slow down ahead" or "Stop ahead"; the F-type variable information board dynamically displays "Accident ahead, no passage" or other traffic information, and adjusts the brightness to ensure clear visibility under different lighting conditions; then, the water curtain generation system is started, and the high-efficiency nozzle sprays water at the set spray pressure (50KPa to 150KPa) to form a flexible water curtain barrier, covering the tunnel entrance area, forcing vehicles to slow down and provide visual warnings. The water source is provided by the tunnel's seepage water drainage system, and impurities are removed by a multi-layer grid filter device. The water tank uses a liquid level sensor and a solenoid valve to detect water volume and automatically replenish water. The flexible gate system closes after the information warning and water curtain barrier are activated. Its drive device uses a DC brushless motor and a mechanical self-locking gear mechanism, which can slowly and steadily complete the gate bar closing operation within 10 seconds, giving passing drivers sufficient response time. The gate bar is made of an aluminum alloy core column wrapped with anti-aging foam material. It has flexible energy absorption characteristics, effectively absorbs impact force when a vehicle collides, and automatically resets through a hinge. In addition, the control system monitors the operating status of each module in real time, and transmits data back to the command center to ensure efficient linkage of the system in an emergency. When the accident is resolved, the system closes the water curtain and gate in reverse order, switches the information warning system to the "slow passage" mode, and resumes normal traffic. .

[0078] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Tunnel entrance flexible blocking system, characterized by: include: The water curtain generation system is installed on the gantry at the tunnel entrance. It consists of a high-efficiency sprinkler, a water storage tank, a liquid level sensor and a controller. It is used to quickly form a flexible water curtain barrier to slow down the vehicle speed and provide a visual warning. The water source is taken from the tunnel leakage drainage system and passes through a filtering device to ensure water quality; The flexible barrier system is installed near the tunnel entrance and adopts a structure of aluminum alloy core column wrapped with foam material. The barrier rod has flexible energy absorption characteristics, is hinged to the base and has an automatic reset function; Information warning system, including sound and light alarms, integrated traffic warning lights and F-type variable information boards installed at tunnel entrances and on both sides of the road, used to guide and warn drivers through dynamic displays, lights and alarm sounds; The control system is connected to the remote command center through the communication module to monitor and adjust the system status in real time, realizing the linkage control of the water curtain generation system, flexible barrier system and information warning system.

2. The flexible tunnel entrance blocking system according to claim 1, characterized in that: The high-efficiency nozzle of the water curtain generating system adopts a DN10 universal DC nozzle with a spray pressure range of 50KPa to 150KPa. The water storage tank of the water curtain generating system is made of stainless steel with a capacity of 6000L. A liquid level sensor and a solenoid valve are configured inside the water storage tank. The liquid level sensor is used to monitor the water level height, and the solenoid valve is used to control the water replenishment pump to perform water replenishment operations.

3. The flexible tunnel entrance blocking system according to claim 1, characterized in that: The gate rod of the flexible gate system adopts a composite structure of an aluminum alloy core column wrapped with a foam material, the density of the foam material is 50kg / m³ to 70kg / m³, the diameter of the aluminum alloy core column is 25mm to 30mm, and the outer surface is covered with a PVC film with a reflective function.

4. The flexible tunnel entrance blocking system according to claim 1, characterized in that: The light source wavelengths of the integrated traffic warning lights in the information warning system are 625nm for red light, 510nm for green light, and 470nm for blue light. Each module of the integrated traffic warning lights contains 198 LED lamp beads, with a rated power of 18W and a waterproof grade of IP66.

5. The flexible blocking system for tunnel entrance according to claim 1, characterized in that: The control system includes a main controller, a communication module and a sensor interface module. The communication module exchanges signals with the information warning system, the flexible barrier system and the water curtain generation system through the RS-485 protocol to support status monitoring and command transmission.

6. The flexible blocking system for tunnel entrance according to claim 1, characterized in that: The filtering device of the water curtain generating system adopts a multi-layer grid filtering structure with a filtering accuracy of 50 microns to 100 microns, which is used to remove impurities in the water.

7. The flexible tunnel entrance blocking system according to claim 1, characterized in that: The driving device of the flexible barrier system adopts a brushless DC motor with a motor power of 50W to 100W and a built-in mechanical self-locking gear mechanism. The opening or closing speed of the gate rod can be adjusted to a maximum of 10 seconds.

8. The flexible tunnel entrance blocking system according to claim 1, characterized in that: The display size of the F-type variable information board of the information warning system is 3.2M×1.6M, the pixel module specification is 32×16, the resolution of a single module display is 96×48 pixels, the pixel pitch is 33.5mm, and the display module power consumption is less than 12W. The F-type variable information board supports dynamic traffic information display, and its display brightness is ≥8,000cd / m2.

9. The flexible tunnel entrance blocking system according to claim 1, characterized in that: The composite structure of the flexible barrier is connected to the base via a stainless steel hinge, the hinge has a design load of 100kg to 150kg, and has a sliding adjustment function to adapt to the installation environment.

10. The flexible tunnel entrance blocking system according to claim 1, characterized in that: The module adopts a modular design, and the mounting bracket is made of hot-dip galvanized steel. The fixing point of the bracket can be adjusted from 500mm to 1500mm.

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