An ETC gantry
By introducing components such as speed bumps, pressure-sensitive switches, and ultrasonic sensors into the ETC gantry, the problem of vehicles arriving first on highways but the barrier not lifting has been solved, achieving safer and more efficient vehicle identification and control, and adapting to the passage needs of different vehicle types.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HENAN QIARUN CONSTR ENG CO LTD
- Filing Date
- 2024-04-01
- Publication Date
- 2026-05-12
AI Technical Summary
When a vehicle is traveling at excessive speed in an existing ETC lane on a highway, the barrier may not lift even when the vehicle arrives first, resulting in information exchange failure, increasing the need for manual processing and posing a safety hazard.
An ETC gantry was designed, comprising a base, columns, crossbars, and railings. A vehicle identification system and power components were installed, and the raising and lowering of the railings were controlled by a speed reducer, pressure-sensitive switches, and transmission components. Combined with non-Newtonian fluid and ultrasonic sensors, vehicle identification and safety control were achieved.
It effectively reduces ETC-related vehicle-hopping caused by following vehicles quickly overtaking the vehicle in front, improves safety and traffic efficiency, reduces manual intervention, and protects emergency vehicles and equipment.
Smart Images
Figure CN118053213B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of ETC gantry technology, specifically an ETC gantry. Background Technology
[0002] ETC gantries, as an important highway toll collection facility, are mainly installed on highway toll lanes. Their main function is to carry cameras to monitor and identify vehicles passing through the ETC lanes in real time. ETC gantries can not only carry cameras, but also other related equipment, such as license plate recognition systems and traffic flow monitoring systems.
[0003] The core function of an ETC gantry is to interact with the ETC chip on the vehicle. When a vehicle passes through an ETC gantry, the onboard ETC chip communicates wirelessly with the reader on the gantry to exchange information. Through this interaction, the system can accurately obtain the vehicle's travel distance, providing data support for subsequent toll settlement.
[0004] If a vehicle enters an existing highway ETC lane at a speed exceeding 30 kilometers per hour, the antenna transaction time may cause the vehicle to arrive first, but the barrier may not be raised. This information exchange method is also difficult to automatically handle special vehicles (such as those that lose control of their brakes or maliciously break through the barrier), and often requires manual handling by staff, which not only increases the workload but also the risk of accidents.
[0005] Therefore, the present invention provides an ETC gantry. Summary of the Invention
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this invention to solve its technical problem is as follows: An ETC gantry according to this invention includes a base, a lane, columns, a crossbar, and a barrier mounted on the columns. The columns are fixedly installed on the base, and there are two columns. The crossbar is located at the top of the two columns. The two columns and the crossbar are combined to form the ETC gantry body. A vehicle identification system is installed on the crossbar for interacting with the ETC chip on the vehicle. The vehicle needs to interact with the ETC chip on the vehicle through the vehicle identification system in front of the ETC gantry body to generate toll information, control the barrier to lift, and allow the vehicle to pass. Compared with the existing technology, which first identifies the vehicle through the vehicle identification system and then enters the ETC lane, this method can further reduce the behavior of following vehicles quickly overtaking after the preceding vehicle has completed its interaction, thus avoiding the occurrence of "ETC fraud".
[0008] A first chamber is provided in the lane, and a second chamber is provided below the first chamber. The second chamber is located directly below the first chamber and is a sealed chamber. A speed reduction plate is slidably installed inside the first chamber. The speed reduction plate slides down in the first chamber under the pressure of the vehicle. When a car passes through the lane, the weight of the car body can be transmitted to the speed reduction plate through the wheels, causing the speed reduction plate to slide downward in the first chamber under pressure.
[0009] The power unit, located inside the column, controls the rotation of the barrier. When the barrier is horizontal, it blocks vehicles. By controlling the power unit, the barrier can be raised, releasing the obstruction and allowing vehicles to continue driving. The power unit can also be controlled by a vehicle identification system. After the vehicle control system interacts with the ETC chip on the vehicle and completes the toll deduction, it can control the power unit to raise the barrier and allow passage. (The vehicle identification system is a common technology in the prior art and will not be described in detail here.)
[0010] A pressure-sensitive switch is installed in the second chamber. Pressing it controls the power component to rotate the railing. Pressing the pressure-sensitive switch activates the power component, thereby controlling the railing to rotate. (Remote control via pressure-sensitive switch is a common technique in the prior art, and will not be elaborated on here.)
[0011] The transmission assembly is located within the lane. As the speed bump slides down, it presses the pressure-sensitive switch. When the vehicle passes the speed bump, the speed bump slides downward inside the first chamber under the pressure of its weight. At this time, the transmission assembly presses the pressure-sensitive switch, which then controls the power assembly.
[0012] The pressure-sensitive switch is located in the sealed chamber of the second chamber, which can effectively prevent rainwater and dust from damaging it, further improving the service life and performance of the pressure-sensitive switch.
[0013] The speed bump is located on one side of the ETC gantry body, and there is also a speed bump on the other side. Underneath each speed bump is a first chamber, a second chamber, a transmission component, and a pressure-sensitive switch. When a vehicle completes the toll payment and the barrier is raised, the speed bump on the other side of the ETC gantry body can be pressed again as the vehicle moves. At this time, the pressure-sensitive switch can control the power component to lower the barrier and block the next vehicle again. Although this will slow down the traffic flow, it effectively reduces the behavior of following vehicles quickly overtaking the vehicle in front to bypass the ETC.
[0014] The power assembly includes a drive motor, a transmission rod, and a connecting rod. The drive motor is fixedly installed inside the column, and the output shaft of the drive motor is fixedly connected to the side wall of the transmission rod. The end of the transmission rod away from the drive motor is rotatably connected to the railing through the connecting rod.
[0015] The drive motor, programmed to rotate only 90 degrees at a time, effectively controls the barrier's rotation. A connecting rod runs through the transmission rod and the barrier, with a torsion spring between them. The barrier's outer wall is covered with cushioning cotton. When an emergency vehicle appears, the vehicle recognition system may not be able to react quickly enough to raise the barrier, potentially causing the vehicle to run over. In this situation, the barrier, wrapped in cushioning cotton, swings under the impact of the vehicle, releasing its obstruction. The torsion spring deforms and stores elastic potential energy. After the emergency vehicle passes, the barrier releases this energy through the torsion spring, returning to its blocking state. Compared to existing technologies, this effectively prevents vehicles from running over due to insufficient manpower, thus avoiding safety hazards posed by emergency vehicles and tollbooth staff.
[0016] Meanwhile, the vehicle recognition system installed on the crossbeam can record information about vehicles in special circumstances and upload it to the cloud for delayed deduction of fees, or record vehicles without ETC to prevent them from entering the toll station next time.
[0017] The transmission assembly includes a first pressure plate, a second pressure plate, and a return spring. The first pressure plate is fixedly installed at the bottom end of the speed reduction plate, and the second pressure plate is slidably installed inside the second chamber. The first and second pressure plates are made of magnetic material and repel each other. The return spring is fixedly installed at the bottom end of the second pressure plate, and the other end of the return spring is fixedly connected to the bottom end of the second chamber.
[0018] When a vehicle passes through, the speed bump slides downwards inside the first chamber under the pressure of its weight, simultaneously causing the first pressure plate to slide downwards. At this time, the first pressure plate can control the second pressure plate to slide downwards inside the second chamber through the repulsive force of the magnet, and press the pressure-sensitive switch. With the activation of the pressure-sensitive switch, the drive motor can be controlled to rotate, and the barrier can be opened. When the vehicle moves to the speed bump at the other end of the ETC gantry body, the other pressure-sensitive switch can be activated in the same way, controlling the drive motor to drive the barrier to block again.
[0019] When the vehicle does not apply pressure to the speed brake, the second pressure plate can be pushed back to its original position by the return spring, and the speed brake will be pushed back to its original position by the repulsive force of the magnet (wherein, the elastic force of the return spring is greater than the repulsive force between the first pressure plate and the second pressure plate).
[0020] The top of the speed bump is arched and made of elastic material. The speed bump is hollow and filled with damping fluid. When the speed bump slides down under the weight of the vehicle, a certain indentation will appear on the lane. The arched design can fill this indentation, reduce the bumps when the vehicle passes, and improve the safety of vehicles in special situations. The arched design can also function as a speed bump. Only the top arch of the speed bump is made of elastic material.
[0021] The damping fluid is preferably a non-Newtonian fluid. By filling the speed brake with non-Newtonian fluid, the noise and vibration generated when the vehicle passes can be effectively reduced, bringing a smoother and more comfortable driving experience.
[0022] The speed reducer has a receiving groove on its side wall. An elastic plate is provided between the receiving groove and the cavity inside the speed reducer. A retaining strip is elastically connected inside the receiving groove. A retaining groove for the retaining strip is provided in the lane. The bottom end of the retaining strip is inclined.
[0023] The pressure from the vehicle causes the speed reducer to deform, spreading outwards from the point of pressure and applying pressure to the elastic plate. This deformation pushes the retaining strip from the inside of the receiving groove into the retaining groove, thus limiting the sliding of the speed reducer.
[0024] When a vehicle approaches the ETC gantry, its wheels will run over the lowest point of the speed bump's arch. The non-Newtonian fluid inside the speed bump, under pressure at the top, can only diffuse outwards, pressing against the deformable elastic plate and causing it to bend and press against the locking strip, pushing it into the slot's inner cavity. Since the vehicle is currently exchanging information and has not yet moved, the inclined surface at the bottom of the locking strip is completely pushed into the slot. When the flat surface engages with the inside of the slot, the speed bump is stopped, preventing it from sliding further. Therefore, the second pressure plate cannot be controlled by the magnetic repulsion to control the pressure-sensitive switch. Information exchange and normal passage are only possible through the vehicle identification system conventionally installed on the crossbeam.
[0025] When an emergency vehicle passes through the speed bump at high speed, the non-Newtonian fluid properties inside the speed bump slow down the diffusion to the surroundings. This prevents the deformation of the elastic plate from being sufficient to push the inclined surface at the bottom of the locking bar completely into the slot. The inclined surface will not engage with the slot. At this time, the speed bump will cause the first pressure plate to slide down rapidly inside the first chamber under the weight of the vehicle. In conjunction with the second pressure plate, the pressure-sensitive switch is quickly pressed, controlling the drive motor to raise the barrier and allow the emergency vehicle to pass. If the speed is too fast and the pressure-sensitive switch fails to control the drive motor in time, the barrier can be flexed laterally to further protect the emergency vehicle and reduce damage to the barrier.
[0026] A tension spring is fixedly connected between the clip and the elastic plate.
[0027] The tension spring always maintains a force on the retaining bar, keeping it always inside the receiving groove. Only when the deceleration plate is under pressure is the retaining bar squeezed out of the receiving groove by the deformation of the internal non-Newtonian fluid.
[0028] The interior of the lane is equipped with a water outlet channel, which is connected to the first chamber. By sliding the deceleration plate down into the first chamber, the water accumulated below the first pressure plate can be discharged through the water outlet channel.
[0029] When it rains, water will enter the first chamber through the gap between the speed bump and the lane. At this time, the water accumulated under the speed bump will create some resistance to its descent. With the water outlet channel, the water in the first chamber can be discharged from the water outlet channel during the descent of the speed bump. A rubber diaphragm can be installed at the opening of the water outlet channel. When there is a certain pressure in the water outlet channel, the rubber diaphragm will be pushed open to discharge the water, which can effectively reduce the amount of rainwater entering the first chamber through the other end of the water outlet channel.
[0030] An ultrasonic sensor is fixedly installed on the crossbeam, and a pneumatic push rod is fixedly installed inside the column. The output end of the pneumatic push rod is fixedly connected to the bottom end of the crossbeam.
[0031] When a vehicle passes by, the height of the vehicle can be detected by the ultrasonic sensor. When the vehicle is a large vehicle, a large turning radius is required during the turning process. Sharp turns may cause the turning radius of the vehicle to be insufficient, resulting in a decrease in vehicle stability and making it easy to roll over or skid. At the same time, the load of large vehicles is large, and they may be subject to centrifugal force during sharp turns, making the vehicle difficult to control and prone to roll over or skid. Therefore, it is not convenient for large vehicles to adjust their direction to enter the dedicated lane for large vehicles. At this time, the height of the vehicle can be monitored by the ultrasonic sensor and the pneumatic push rod inside the column can be controlled to raise the crossbar to prevent the ETC gantry body from being damaged by the large vehicle passing by.
[0032] A stop block is slidably installed inside the slot. The top of the stop block is rounded, and a top pressure spring is fixedly installed at the bottom of the stop block. The other end of the top pressure spring is fixedly connected to the inside of the slot.
[0033] When the vehicle is driving normally, the wheels press down on the stop block, causing it to slide downwards within the slot. The position is designed so that the tire presses down on the stop block first, then travels over the speed bump. When the stop block moves into the slot, it blocks the clip, preventing it from sliding into the slot. When the wheel stops pressing down on the stop block, it moves over the speed bump, but not to the highest point of the speed bump. At this point, the top spring resets the stop block, releasing the clip and allowing it to re-enter the slot, while also limiting the sliding of the speed bump.
[0034] When the vehicle speed is too high, the stop block is pressed into the slot. Before the top pressure spring can reset the stop block, even if the wheel runs over the speed reducer and the internal damping fluid diffuses, the stop block will still block the sliding of the clip, causing the speed reducer to slide down to the bottom of the first chamber. This controls the second pressure plate to press the pressure-sensitive switch, causing the drive motor to control the barrier to lift and release the obstruction.
[0035] The part where the retaining bar contacts the stop block is rounded and chamfered to improve the smoothness of the retaining bar pushing the stop block open when a normal vehicle passes by.
[0036] A damping pad is fixedly installed at the opening at the top of the slot. The damping pad can further slow down the reset speed of the stop and improve the stability of the speed reducer sliding into the first chamber when a special vehicle passes by.
[0037] The beneficial effects of this invention are as follows:
[0038] 1. The ETC gantry of the present invention, when an emergency vehicle passes through the speed bump quickly, utilizes the non-Newtonian fluid properties inside the speed bump to slow down the diffusion to the surroundings, ensuring that the deformation of the elastic plate is insufficient to push the inclined surface at the bottom of the card strip completely into the card slot. At this time, the speed bump will cause the first pressure plate to slide rapidly down inside the first chamber under the weight of the vehicle. Through cooperation with the second pressure plate, the pressure-sensitive switch is quickly pressed, controlling the drive motor to raise the barrier and allow the emergency vehicle to pass. If the speed is too fast and the pressure-sensitive switch does not control the drive motor in time, the barrier can be flexed laterally to further protect the emergency vehicle while reducing damage to the barrier.
[0039] 2. The ETC gantry of the present invention uses an ultrasonic sensor to detect the height of a vehicle. When the vehicle is a large vehicle, the ultrasonic sensor can monitor the vehicle's height and control the pneumatic push rod inside the column to raise the crossbar. This improves the adaptability of the ETC gantry and prevents large vehicles from running through the checkpoint and damaging the ETC gantry. Attached Figure Description
[0040] The invention will now be further described with reference to the accompanying drawings.
[0041] Figure 1 This is a perspective view of the present invention;
[0042] Figure 2 This is a cross-sectional view of the lane in this invention;
[0043] Figure 3 In this invention Figure 2 Enlarged view of point A in the image;
[0044] Figure 4This is a schematic diagram of the pneumatic push rod in this invention;
[0045] Figure 5 In this invention Figure 4 Enlarged view of point B in the image;
[0046] Figure 6 This is a schematic diagram of the water outlet tank in this invention;
[0047] Figure 7 In this invention Figure 6 Enlarged view of point C in the image;
[0048] Figure 8 This is a schematic diagram of the structure of the stop block in Embodiment 2 of the present invention.
[0049] In the diagram: 1. Base; 2. Lane; 3. Column; 4. Horizontal frame; 5. Guardrail; 6. Ultrasonic sensor; 7. Speed reducer; 8. Pneumatic push rod; 9. First pressure plate; 10. Second pressure plate; 11. Reset spring; 12. Pressure-sensitive switch; 13. Second chamber; 14. First chamber; 15. Water outlet; 16. Locking strip; 17. Drive motor; 18. Transmission rod; 19. Connecting rod; 20. Slot; 21. Elastic plate; 22. Receiving slot; 23. Tension spring; 24. Damping pad; 25. Stop block; 26. Top pressure spring. Detailed Implementation
[0050] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0051] Example 1: As Figures 1 to 7 As shown in the embodiment of the present invention, an ETC gantry includes a base 1, a lane 2, columns 3, a crossbar 4, and a barrier 5 mounted on the columns 3. The columns 3 are fixedly installed on the base 1, and there are two columns 3. The crossbar 4 is located at the top of the two columns 3. The two columns 3 and the crossbar 4 are combined to form the ETC gantry body. The crossbar 4 is equipped with a vehicle identification system for interacting with the ETC chip on the vehicle. The vehicle needs to interact with the ETC chip on the vehicle through the vehicle identification system in front of the ETC gantry body to generate toll information, control the barrier 5 to lift, and allow the vehicle to pass. Compared with the prior art, which first identifies the vehicle through the vehicle identification system and then enters the ETC lane, this method can further reduce the behavior of following vehicles quickly overtaking after the preceding vehicle has completed its interaction, thus avoiding the occurrence of "ETC fraud".
[0052] A first chamber 14 is provided in lane 2, and a second chamber 13 is provided below the first chamber 14. The second chamber 13 is located directly below the first chamber 14 and is a sealed chamber. A speed reduction plate 7 is slidably installed inside the first chamber 14. The speed reduction plate 7 slides down in the first chamber 14 under the pressure of the vehicle. When a car passes through lane 2, the weight of the car body can be transmitted to the speed reduction plate 7 through the wheels, causing the speed reduction plate 7 to slide downward in the first chamber 14 under pressure.
[0053] The power unit, located inside the column 3, controls the rotation of the barrier 5. When the barrier 5 is horizontal, it blocks the vehicle. By controlling the power unit, the barrier 5 can be raised, thus releasing the vehicle and allowing it to continue driving. The power unit can also be controlled by the vehicle identification system. After the vehicle control system interacts with the ETC chip on the vehicle and completes the toll deduction, it can control the power unit to raise the barrier 5 to allow passage. (The vehicle identification system is a common technology in the prior art and will not be described in detail here.)
[0054] The pressure-sensitive switch 12 is located in the second chamber 13. Pressing it controls the power component to rotate the railing 5. Pressing the pressure-sensitive switch 12 can activate the power component, thereby controlling the rotation of the railing 5. (Remote control via the pressure-sensitive switch 12 is a common technique in the prior art, and will not be described in detail here.)
[0055] The transmission assembly is installed in lane 2. As the speed reducer 7 slides down, it presses the pressure-sensitive switch 12. When the vehicle passes the speed reducer 7, the speed reducer 7 slides down inside the first chamber 14 under the pressure of its weight. At this time, the transmission assembly can press the pressure-sensitive switch 12, so that the pressure-sensitive switch 12 controls the power assembly.
[0056] The pressure-sensitive switch 12 is located in the sealed chamber of the second chamber 13, which can effectively prevent rainwater and dust from damaging it, and further improve the service life and performance of the pressure-sensitive switch 12.
[0057] The speed bump 7 is located on one side of the ETC gantry body, and the other side is also equipped with a speed bump 7. Below the speed bump 7 are the first chamber 14, the second chamber 13, the transmission component, and the pressure-sensitive switch 12. When the vehicle completes the toll payment and the barrier 5 is raised, the speed bump 7 located on the other side of the ETC gantry body can be pressed again as the vehicle moves. At this time, the pressure-sensitive switch 12 can control the power component to lower the barrier 5 and block the next vehicle again. Although it will slow down the passage efficiency, it effectively reduces the behavior of following vehicles quickly overtaking the vehicle in front to circumvent the ETC.
[0058] The power assembly includes a drive motor 17, a transmission rod 18, and a connecting rod 19. The drive motor 17 is fixedly installed inside the column 3. The output shaft of the drive motor 17 is fixedly connected to the side wall of the transmission rod 18. The end of the transmission rod 18 away from the drive motor 17 is rotatably connected to the railing 5 through the connecting rod 19.
[0059] The drive motor 17 can rotate only 90 degrees at a time according to the set program, which can effectively control the rotation state of the barrier 5. The connecting rod 19 passes through the transmission rod 18 and the barrier 5. A torsion spring is set between the barrier 5 and the connecting rod 19. The outer wall of the barrier 5 is wrapped with cushioning cotton. When an emergency vehicle appears, the vehicle recognition system may not be able to react quickly enough to control the drive motor 17 to lift the barrier 5, which may cause the emergency vehicle to run over. At this time, the barrier 5 wrapped with cushioning cotton will swing under the impact of the vehicle and release the obstruction. The torsion spring will also deform at this time and store elastic potential energy. After the emergency vehicle passes, the barrier 5 releases the elastic potential energy through the torsion spring and resets, returning to the blocking state. Compared with the existing technology, this can effectively avoid the safety hazards caused by emergency vehicles running over due to insufficient time to handle emergency vehicles. Emergency vehicles also pose safety hazards to the staff at the toll station.
[0060] Meanwhile, the vehicle recognition system installed on the crossbeam 4 can record information about vehicles in special circumstances and upload it to the cloud for delayed deduction of fees, or record vehicles without ETC to prevent them from entering the toll station next time.
[0061] The transmission assembly includes a first pressure plate 9, a second pressure plate 10, and a return spring 11. The first pressure plate 9 is fixedly installed at the bottom end of the reduction plate 7, and the second pressure plate 10 is slidably installed inside the second chamber 13. The first pressure plate 9 and the second pressure plate 10 are made of magnetic material and repel each other. The return spring 11 is fixedly installed at the bottom end of the second pressure plate 10, and the other end of the return spring 11 is fixedly connected to the bottom end of the second chamber 13.
[0062] When a vehicle passes through, the speed reducer 7 can slide downward inside the first chamber 14 under the pressure of its weight, which in turn drives the first pressure plate 9 to slide downward. At this time, the first pressure plate 9 can control the second pressure plate 10 to slide downward inside the second chamber 13 through the repulsive force of the magnet, and press the pressure-sensitive switch 12. With the activation of the pressure-sensitive switch 12, the drive motor 17 can be controlled to rotate, and the barrier 5 can be opened. When the vehicle moves to the other end of the ETC gantry body, the other pressure-sensitive switch 12 can be activated in the same way, and the drive motor 17 can be controlled to drive the barrier 5 to block again.
[0063] When the vehicle does not apply pressure to the speed reduction plate 7, the second pressure plate 10 can be pressed back by the return spring 11, and the speed reduction plate 7 will be pushed back into place by the repulsive force of the magnet (wherein, the elastic force of the return spring 11 is greater than the repulsive force between the first pressure plate 9 and the second pressure plate 10).
[0064] The top of the speed bump 7 is arched and made of elastic material. The speed bump 7 is hollow and filled with damping fluid. When the speed bump 7 slides down under the weight of the vehicle, a certain depression will appear on the lane 2. The arched design can fill this depression, reduce the bumps when the vehicle passes, and improve the safety of vehicles in special situations. The arched design can also function as a speed bump. Only the top arch of the speed bump 7 is made of elastic material.
[0065] The damping fluid is preferably a non-Newtonian fluid. By filling the speed brake 7 with non-Newtonian fluid, the noise and vibration generated when the vehicle passes by can be effectively reduced, bringing a smoother and more comfortable driving experience.
[0066] The side wall of the speed reducer 7 is provided with a receiving groove 22. An elastic plate 21 is provided between the receiving groove 22 and the cavity inside the speed reducer 7. A retaining strip 16 is elastically connected inside the receiving groove 22. A retaining groove 20 for receiving the retaining strip 16 is provided inside the lane 2. The bottom end of the retaining strip 16 is inclined.
[0067] The pressure from the vehicle causes the speed reducer 7 to deform, spreading outwards from the pressing point and applying pressure to the elastic plate 21, causing it to deform and push the retaining strip 16 from the inside of the receiving groove 22 into the retaining groove 20, thus limiting the sliding of the speed reducer 7.
[0068] When a vehicle approaches the ETC gantry, its wheels will run over the lowest point of the arched speed bump 7. At this time, the non-Newtonian fluid inside the speed bump 7 can only diffuse outwards due to the pressure at the top, pressing against the deformable elastic plate 21, causing it to bend and press against the locking strip 16, pushing the locking strip 16 into the inner cavity of the locking slot 20. Since the vehicle is currently exchanging information and has not yet moved, the inclined surface at the bottom of the locking strip 16 is completely pushed into the locking slot 20. When the plane engages with the inside of the locking slot 20, the speed bump 7 can be limited and cannot continue to slide down. Therefore, it cannot control the pressure-sensitive switch 12 by the repulsive force of the magnet through the second pressure plate 10. It can only exchange information and allow normal passage through the vehicle recognition system conventionally set on the crossbeam 4.
[0069] When an emergency vehicle passes through the speed bump 7 quickly, the non-Newtonian fluid properties inside the speed bump 7 slow down the diffusion to the surroundings, so that the deformation of the elastic plate 21 is insufficient to push the inclined surface at the bottom of the locking strip 16 into the interior of the locking groove 20. The inclined surface will not engage with the locking groove 20. At this time, the speed bump 7 will drive the first pressure plate 9 to slide down rapidly inside the first chamber 14 under the weight of the vehicle. In cooperation with the second pressure plate 10, the pressure-sensitive switch 12 is pressed quickly, controlling the drive motor 17 to control the barrier 5 to lift and allow the emergency vehicle to pass. If the speed is too fast and the pressure-sensitive switch 12 does not control the drive motor 17 in time, the barrier 5 can be flexed laterally to further protect the emergency vehicle and reduce damage to the barrier 5.
[0070] A tension spring 23 is fixedly connected between the clip 16 and the elastic plate 21.
[0071] The tension spring 23 always maintains a force on the retaining strip 16, keeping it always inside the receiving groove 22. Only when the deceleration plate 7 is under pressure, the retaining strip 16 is squeezed out of the receiving groove 22 by the deformation of the internal non-Newtonian fluid.
[0072] The interior of lane 2 is provided with a water outlet 15, which is connected to the first chamber 14. By sliding down the deceleration plate 7 in the first chamber 14, the water accumulated below the first pressure plate 9 can be discharged through the water outlet 15.
[0073] When it rains, water will enter the first chamber 14 through the gap between the speed bump 7 and the lane 2. At this time, the water below the speed bump 7 will create some resistance to the speed bump 7's descent. With the water outlet 15, the water in the first chamber 14 can be discharged from the water outlet 15 during the descent of the speed bump 7. A rubber diaphragm can be installed at the opening of the water outlet 15. When there is a certain pressure in the water outlet 15, the rubber diaphragm will be pushed open to discharge the water, which can effectively reduce the amount of rainwater entering the first chamber 14 through the other end of the water outlet 15.
[0074] (An electric heating wire can also be installed between the first chamber 14 and the second chamber 13. In cold weather, the water in the first chamber 14 can be heated by the electric heating wire. In cold weather, it can effectively prevent the water in the first chamber 14 from freezing, thereby affecting the sliding state of the speed reducer 7.)
[0075] An ultrasonic sensor 6 is fixedly installed on the cross frame 4, and a pneumatic push rod 8 is fixedly installed inside the column 3. The output end of the pneumatic push rod 8 is fixedly connected to the bottom end of the cross frame 4.
[0076] When a vehicle passes by, the height of the vehicle can be detected by the ultrasonic sensor 6. When the special vehicle is a large vehicle, a large turning radius is required during the turning process. Sharp turns may cause the turning radius of the vehicle to be insufficient, resulting in a decrease in vehicle stability and making it easy to roll over or skid. At the same time, the load of large vehicles is large, and they may be subject to centrifugal force during sharp turns, making the vehicle difficult to control and prone to roll over or skid. Therefore, it is not convenient for large vehicles to adjust their direction to enter the dedicated lane for large vehicles. At this time, the height of the vehicle can be monitored by the ultrasonic sensor 6, and the pneumatic push rod 8 inside the column 3 can be controlled to raise the crossbar 4 to prevent the ETC gantry body from being damaged by large vehicles passing by.
[0077] Example 2: Figure 8 As shown in Example 1, another embodiment of the present invention is as follows:
[0078] A stop 25 is slidably installed in the slot 20. The top of the stop 25 is rounded, and a top pressure spring 26 is fixedly installed at the bottom of the stop 25. The other end of the top pressure spring 26 is fixedly connected to the inside of the slot 20.
[0079] When the vehicle is driving normally, the wheels press the stop block 25, causing it to slide downwards within the slot 20. The position is designed so that the tire presses the stop block 25 first, and then travels over the speed reducer 7. When the stop block 25 moves into the slot 20, it blocks the clip 16, preventing it from sliding into the slot 20. When the wheels stop pressing the stop block 25, they can move over the speed reducer 7, but not to the highest point of the speed reducer 7. At this point, the top spring 26 can drive the stop block 25 to reset, releasing the block 16 and allowing it to re-enter the slot 20, thus limiting the sliding of the speed reducer 7.
[0080] When the vehicle speed is too high, the stop block 25 is pressed into the inside of the slot 20. Before the top pressure spring 26 drives the stop block 25 to reset, even if the wheel runs over the speed reduction plate 7 and causes the internal damping fluid to diffuse, the stop block 25 will block the sliding of the clip 16, causing the speed reduction plate 7 to slide down to the bottom of the first chamber 14. This controls the second pressure plate 10 to press the pressure-sensitive switch 12, causing the drive motor 17 to control the barrier 5 to lift and release the obstruction.
[0081] The part where the retaining strip 16 contacts the stop block 25 is rounded and chamfered to improve the smoothness of the retaining strip 16 pushing the stop block 25 open when a normal vehicle passes by.
[0082] A damping pad 24 is fixedly installed at the opening at the top of the slot 20. The damping pad 24 can further slow down the reset speed of the stop 25 and improve the stability of the control deceleration plate 7 sliding into the first chamber 14 when the special vehicle passes through.
[0083] Working principle: When a vehicle passes through, the speed reduction plate 7 can slide downward inside the first chamber 14 under the pressure of its weight, and at the same time drive the first pressure plate 9 to slide downward. At this time, the first pressure plate 9 can control the second pressure plate 10 to slide downward inside the second chamber 13 through the repulsive force of the magnet, and press the pressure-sensitive switch 12. With the activation of the pressure-sensitive switch 12, the drive motor 17 can be controlled to rotate, and the barrier 5 can be opened. When the vehicle moves to the other end of the ETC gantry body, the other pressure-sensitive switch 12 can be activated in the same way, and the drive motor 17 can be controlled to drive the barrier 5 to block the next vehicle again.
[0084] When an emergency vehicle passes through the speed bump 7 quickly, the non-Newtonian fluid properties inside the speed bump 7 slow down the diffusion to the surroundings, so that the deformation of the elastic plate 21 is insufficient to push the inclined surface at the bottom of the locking strip 16 completely into the slot 20. At this time, the speed bump 7 will drive the first pressure plate 9 to slide down rapidly inside the first chamber 14 under the weight of the vehicle. In cooperation with the second pressure plate 10, the pressure-sensitive switch 12 is pressed quickly, controlling the drive motor 17 to control the barrier 5 to lift and allow the emergency vehicle to pass. If the speed is too fast and the pressure-sensitive switch 12 does not control the drive motor 17 in time, the barrier 5 can be flexed laterally to further protect the emergency vehicle and reduce damage to the barrier 5.
[0085] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0086] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship 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 the scope of protection of this invention.
[0087] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. An ETC gantry, characterized in that: It includes a base (1), a lane (2), a column (3), a crossbar (4), and a railing (5) set on the column (3). The column (3) is fixedly installed on the base (1). There are two columns (3). The crossbar (4) is set on the top of the two columns (3). The two columns (3) and the crossbar (4) are combined to form the ETC gantry body. The crossbar (4) is equipped with a vehicle identification system for interacting with the ETC chip on the vehicle to generate toll information and control the railing to lift. A first chamber (14) is provided in the lane (2), and a second chamber (13) is provided below the first chamber (14). A speed reduction plate (7) is slidably installed inside the first chamber (14), and the speed reduction plate (7) slides down in the first chamber (14) under the pressure of the vehicle. The power unit is installed inside the column (3) and is used to control the rotation of the railing (5); A pressure-sensitive switch (12) is installed in the second chamber (13) and controls the power assembly to rotate the railing (5) by pressing it. The transmission assembly is located in the lane (2) and presses the pressure-sensitive switch (12) as the speed reducer (7) slides down; The deceleration plate (7) is hollow and filled with a non-Newtonian fluid; the deceleration plate (7) has a receiving groove (22) on its side wall, and an elastic plate (21) is provided between the receiving groove (22) and the cavity inside the deceleration plate (7); a retaining strip (16) is elastically connected inside the receiving groove (22); a retaining groove (20) for receiving the retaining strip (16) is provided inside the lane (2); the bottom end of the retaining strip (16) is inclined; a tension spring (23) is fixedly connected between the retaining strip (16) and the elastic plate (21); the tension spring (23) always maintains a force on the retaining strip (16) so that it is always inside the receiving groove (22); when the deceleration plate (7) is under pressure, the retaining strip (16) is squeezed out from inside the receiving groove (22) and pushed into the retaining groove (20) by the deformation of the non-Newtonian fluid inside, thus limiting the sliding of the deceleration plate (7).
2. An ETC gantry according to claim 1, characterized in that: The power assembly includes a drive motor (17), a transmission rod (18), and a connecting rod (19). The drive motor (17) is fixedly installed inside the column (3). The output shaft of the drive motor (17) is fixedly connected to the side wall of the transmission rod (18). The end of the transmission rod (18) away from the drive motor (17) is rotatably connected to the railing (5) through the connecting rod (19).
3. An ETC gantry according to claim 2, characterized in that: The transmission assembly includes a first pressure plate (9), a second pressure plate (10), and a return spring (11). The first pressure plate (9) is fixedly installed at the bottom end of the deceleration plate (7), and the second pressure plate (10) is slidably installed inside the second chamber (13). The first pressure plate (9) and the second pressure plate (10) are made of magnetic material and repel each other. The return spring (11) is fixedly installed at the bottom end of the second pressure plate (10), and the other end of the return spring (11) is fixedly connected to the bottom end of the second chamber (13).
4. An ETC gantry according to claim 3, characterized in that: The top of the speed reduction plate (7) is arched and made of elastic material.
5. An ETC gantry according to claim 4, characterized in that: The lane (2) is provided with a water outlet (15) which is connected to the first chamber (14). The water outlet (15) can be discharged through the water outlet (15) by sliding the deceleration plate (7) in the first chamber (14).
6. An ETC gantry according to claim 5, characterized in that: An ultrasonic sensor (6) is fixedly installed on the cross frame (4), and a pneumatic push rod (8) is fixedly installed inside the column (3). The output end of the pneumatic push rod (8) is fixedly connected to the bottom end of the cross frame (4).
7. An ETC gantry according to claim 6, characterized in that: A stop block (25) is slidably installed in the slot (20). The top of the stop block (25) is arc-shaped, and a top pressure spring (26) is fixedly installed at the bottom of the stop block (25). The other end of the top pressure spring (26) is fixedly connected to the inside of the slot (20).
8. An ETC gantry according to claim 7, characterized in that: A damping pad (24) is fixedly installed at the opening at the top of the slot (20).