A pneumatic lifting speed bump

Abstract

The present invention discloses a pneumatic lifting speed bump, which comprises a lifting plate, a power assembly and a load-bearing bracket. The lifting plate is composed of longitudinal guide rails and side plates. The side plates are connected to both sides of the longitudinal guide rails. The power assembly is composed of a lifting cylinder, a damping cylinder, a high-pressure gas storage tank and a low-pressure gas storage tank. The high-pressure gas storage tank and the low-pressure gas storage tank are welded by a cross beam frame to form a groove rail with an integral structure. A number of lifting cylinders and damping cylinders are arranged alternately and evenly installed on the cross beam frame inside the groove rail. The width of the longitudinal guide rail corresponds to the groove width of the groove rail. The piston rod end of the lifting cylinder is connected to the longitudinal guide rail, so that the lifting plate and the power assembly form a mechanical body of the pneumatic lifting speed bump. An edge bracket is provided on the outer edge of the groove rail to be located on the load-bearing bracket, and the load-bearing bracket is embedded and installed in a preset ground groove pit at a traffic intersection. The present invention adopts a pneumatic lifting method with multiple cylinders and double gas storage tanks for voltage stabilization, achieving the purpose of a lifting speed bump that can pass smoothly when decelerating, give a warning when speeding, and impose a penalty through jolting.

Description

Technical Field

[0001] The present invention relates to the technical field of traffic speed bumps, and particularly to a pneumatic lifting speed bump. Background Art

[0002] Currently, conventional speed bumps are all fixed rubber speed bumps, which have greatly reduced the occurrence of accidents at various traffic intersections. They are special facilities for traffic safety, achieving the purpose of slowing down vehicles, improving the traffic safety at intersections. However, the disadvantage is that everyone is passively punished. Whether they abide by traffic rules or not, whether they slow down or not, it will cause the motor vehicle to jolt, causing discomfort to the drivers and passengers passing through the speed bump to a certain extent. Moreover, frequently passing over speed bumps will also damage the suspension system of the motor vehicle. In addition, the impact of the vehicle on the speed bump will also cause relatively large noise pollution. Especially at night, the phenomenon of speed bump noise disturbing residents has become a problem that cannot be ignored. Therefore, the contradiction between the road safety function of speed bump facilities, the demands of driving comfort, and the noise disturbing residents has become a difficult problem for road traffic management. Although there are various theoretically liftable speed bumps on the market, such as those driven by electric machinery or hydraulic machinery, they all have defects such as high production and operation costs, complex facility structures, large volumes, poor reliability and stability, and thus cannot be popularized and applied. Summary of the Invention

[0003] To make up for the deficiencies of the above technologies, the present invention provides a pneumatic lifting speed bump, that is, a pneumatic lifting method using multiple cylinders and double air storage tanks for pressure stabilization to achieve the purpose of a liftable speed bump that can pass smoothly when decelerating, give a warning when speeding, and punish by jolting.

[0004] A pneumatic lifting speed bump of the present invention includes a lifting plate, a power assembly and a load-bearing bracket. The lifting plate is composed of longitudinal guide rails and side plates. On both sides of the top of the longitudinal guide rails, side plates are respectively connected through hinge shafts. The top of the longitudinal guide rails is evenly distributed with concealed connectors. The top of the concealed connectors is sunken, and a waist-shaped hole is provided in the center. The power assembly is composed of a lifting cylinder, a damping cylinder, a high-pressure gas storage tank and a low-pressure gas storage tank. The high-pressure gas storage tank and the low-pressure gas storage tank are of a rectangular steel tank structure. The high-pressure gas storage tank and the low-pressure gas storage tank are welded into an integral structure of a trough rail through a cross beam frame at a certain interval. A number of lifting cylinders and damping cylinders are arranged at intervals and evenly installed on the cross beam frame inside the trough rail. The width of the longitudinal guide rail corresponds to the trough width of the trough rail. Cylinder holes corresponding to the positions and sizes of the lifting cylinders and damping cylinders are provided at the bottom of the longitudinal guide rail, so that the lifting cylinders and damping cylinders are embedded in the longitudinal guide rail. The piston rod end of the lifting cylinder is connected to the longitudinal guide rail through a concealed connector. The piston rod end of the damping cylinder abuts against the inner wall of the longitudinal guide rail, so that the lifting plate and the power assembly form a mechanical body of a pneumatic lifting speed bump. An edge bracket is provided on the outer edge of the trough rail formed by the high-pressure gas storage tank and the low-pressure gas storage tank to be located on the load-bearing bracket. The load-bearing bracket is a total load-bearing sitting bracket and is embedded and installed in a preset ground trough pit at a traffic intersection.

[0005] Preferably, for a pneumatic lifting speed bump of the present invention, the side plates are arranged in segments and are evenly divided into 2 to 4 segments according to the unit lane width. Adjacent side plates are connected through locking parts. Load-bearing fulcrums are provided on the inner sides of the side plates. Signal indicator lights are provided on the driving-in sides of the side plates. Limit baffles are provided at both ends of the side plates. Rubber pads are provided on the top surface of the longitudinal guide rails and the outer surfaces of the side plates. Warning colors are painted on the rubber pads. Lifting holes are provided at the top of the longitudinal guide rails.

[0006] Preferably, for a pneumatic lifting speed bump of the present invention, the hinge shaft is a core-pulling hinge, lubricating oil is filled in the hinge shaft, and limit screws are provided on the longitudinal guide rail at the joint of the hinge shaft.

[0007] Preferably, for a pneumatic lifting speed bump of the present invention, the connection between the piston rod end of the lifting cylinder and the waist-shaped hole of the concealed connector of the longitudinal guide rail is a movable connection to meet a certain amplitude of displacement of the waist-shaped hole in the horizontal direction at the connection point. The displacement amplitude is not less than the lateral displacement amplitude of the lifting plate when the speed bump is impacted. The waist-shaped hole corresponds to the vertical direction of the speed bump.

[0008] Preferably, for a pneumatic lifting speed bump of the present invention, the high-pressure gas storage tank and the low-pressure gas storage tank are connected through a pressure regulating valve. The low-pressure gas storage tank is connected to the lifting cylinder and the damping cylinder through a solenoid valve. The high-pressure gas storage tank is externally connected to an air pump through a pipeline.

[0009] Preferably, for a pneumatic lifting speed bump of the present invention, the total contact gap between the two sides of the longitudinal guide rail embedded in the groove rail formed by the high-pressure gas storage tank and the low-pressure gas storage tank is controlled at about 3 mm. The effective running distance of the longitudinal guide rail in the groove rail is greater than the lifting running distance of the piston rod end of the lifting cylinder to the lifting plate, and at the same time, it is ensured that the lateral displacement amplitude of the speed bump lifting plate when impacted is not greater than the displacement amplitude of the waist-shaped hole of the longitudinal guide rail at the connection point.

[0010] Preferably, for a pneumatic lifting speed bump of the present invention, the arrangement quantity of the lifting cylinder and the energy-blocking cylinder is considered according to the width of the road and the unit weight of the passing vehicles. Generally, the arrangement quantity of the lifting cylinder is 2 - 4, preferably 3. The energy-blocking cylinders are arranged alternately with the lifting cylinders, and the arrangement quantity of the energy-blocking cylinders between adjacent lifting cylinders is not less than 1.

[0011] Due to the adoption of the above technical solutions, the present invention has the following beneficial effects:

[0012] 1. The present invention adopts the double gas storage tank structure of the high-pressure gas storage tank and the low-pressure gas storage tank, and the combined cylinder power structure with the lifting cylinders and the energy-blocking cylinders arranged alternately, ensuring the stability of the power of the lifting speed bump, enabling the best combination and application of power output and energy slow release, being able to stably block when the vehicle impacts at high speed and smoothly buffer when the vehicle passes slowly at low speed.

[0013] 2. The present invention can realize intelligent automatic lifting by accessing the intelligent control system. For example, under the control system accessing the induction speed measurement device, it can achieve the function that when decelerating slowly, it can pass smoothly, and when passing through at high speed, it will be punished by jolting and thus be forced to decelerate; another example is that under the control system accessing the traffic signal, it can pass smoothly when the green light is on, and will be punished by jolting when passing through when the yellow light or red light is on, effectively curbing the behavior of rushing through the lights. While greatly improving the road traffic safety, it also changes the situation in the past where whether following the traffic rules or not and whether decelerating or not, the fixed speed bumps would all cause collective passive punishment.

[0014] 3. The present invention combines traffic signal warning and landmark warning by setting signal indicator lights on the driving-in side of the side plate of the lifting plate and the rubber pad structure with warning colors on the outside. If the rubber pad is damaged during long-term use, a new rubber pad can be replaced during regular maintenance. After replacement, the speed bump will be as good as new.

[0015] 4. The present invention adopts the vertical guiding and lifting device of the longitudinal guide rail and the groove rail, which is a device to reduce friction, with high safety and stability, strong environmental adaptability. The ingress of sand, dust and rain will not affect the operation, it has a small floor area, the production cost is relatively low compared with the existing theoretical-level lifting speed bumps, the installation and maintenance costs are small, and the service life is long.

[0016] The structure of the present invention is simple, ingeniously designed, and operates stably, generating good social and economic benefits. It can be used as a traffic speed bump and applied in the field of road traffic safety facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structural principle in the raised state of a pneumatic lifting speed bump of the present invention.

[0018] Figure 2 It is a schematic diagram of the structural principle in the planar state of a pneumatic lifting speed bump of the present invention.

[0019] Figure 3 It is a schematic diagram of the structural principle of a pneumatic lifting speed bump of the present invention.

[0020] Figure 4 It is a schematic diagram of the assembly structural principle of a pneumatic lifting speed bump of the present invention.

[0021] Wherein, 1. lifting plate; 2. longitudinal guide rail; 3. side plate; 4. hinge shaft; 5. concealed connector; 6. waist-shaped hole; 7. lifting cylinder; 8. energy-blocking cylinder; 9. high-pressure gas storage tank; 10. low-pressure gas storage tank; 11. cross beam frame; 12. cylinder hole; 13. edge bracket; 14. limit screw; 15. limit baffle; 16. lifting ring; 17. load-bearing fulcrum; 18. signal indicator lamp. DETAILED DESCRIPTION OF THE INVENTION

[0022] The following further illustrates and elaborates on a pneumatic lifting speed bump of the present invention in conjunction with embodiments.

[0023] See Figures 1 to 4, a pneumatic lifting speed bump of the present invention includes a lifting plate 1, a power assembly, and a load-bearing bracket. The lifting plate 1 is composed of longitudinal guide rails 2 and side plates 3. Both sides of the top of the longitudinal guide rails 2 are respectively connected with side plates 3 through hinge shafts 4. The top of the longitudinal guide rails 2 is evenly distributed with concealed connectors 5. The top of the concealed connectors 5 is recessed, and a waist-shaped hole 6 is provided in the center to ensure that the nut does not exceed the surface of the longitudinal guide rails 2 during connection. The power assembly is composed of a lifting cylinder 7, a damping cylinder 8, a high-pressure gas storage tank 9, and a low-pressure gas storage tank 10. The high-pressure gas storage tank 9 and the low-pressure gas storage tank 10 are of a rectangular steel tank structure. The high-pressure gas storage tank 9 and the low-pressure gas storage tank 10 are welded into an integral structure of a channel rail through a cross beam frame 11 at a certain interval. A number of lifting cylinders 7 and damping cylinders 8 are arranged at a certain interval and evenly installed on the cross beam frame 11 inside the channel rail. The width of the longitudinal guide rails 2 corresponds to the width of the channel of the channel rail for vertical guiding of the lifting. The bottom of the longitudinal guide rails 2 is provided with cylinder holes 12 corresponding to the positions and sizes of the lifting cylinder 7 and the damping cylinder 8, so that the lifting cylinder 7 and the damping cylinder 8 are embedded in the longitudinal guide rails 2. The piston rod end of the lifting cylinder 7 is connected with the longitudinal guide rails 2 through a concealed connector 5. The piston rod end of the damping cylinder 8 abuts against the inner wall of the longitudinal guide rails 2, so that the lifting plate 1 and the power assembly form a mechanical body of a pneumatic lifting speed bump. The outer edge of the channel rail formed by the high-pressure gas storage tank 9 and the low-pressure gas storage tank 10 is provided with an edge bracket 13 to be located on the load-bearing bracket. The load-bearing bracket is a total load-bearing sitting bracket and is embedded and installed in a preset ground groove tunnel at a traffic intersection.

[0024] In a pneumatic lifting speed bump of the present invention, the side plates 3 are arranged in sections and are evenly divided into 2-4 sections according to the width of a single lane. The adjacent side plates 3 are connected through pin locks to prevent being lifted by impact. The inner side of the side plates 3 is provided with load-bearing fulcrums 17. When the speed bump is parallel to the ground and when the speed bump bulges, the load-bearing pressure of the lifting plate 1 is buffered and decomposed through the load-bearing fulcrums 17. The incoming side of the side plates 3 is provided with signal indicator lights 18, which are red, green, and orange and have the same signal function as the current traffic signal lights. The two ends of the side plates 3 are provided with limit baffles 15 to limit the bulging height of the lifting plate 1 and at the same time play a role in preventing dust and sand. The top surface of the longitudinal guide rails 2 and the outer surface of the side plates 3 are provided with rubber pads to play a buffering role. The rubber pads are coated with warning colors to enhance their warning function. The longitudinal guide rails 2 are provided with lifting holes to install lifting rings 16 for easy disassembly, assembly, and maintenance.

[0025] In a pneumatic lifting speed bump of the present invention, the hinge shaft 4 is a core-pulling hinge, and the hinge shaft 4 is filled with lubricating oil. A limit screw 14 is provided on the longitudinal guide rails 2 at the joint of the hinge shaft 4 to prevent the side plates 3 from coming off.

[0026] An air-operated lifting speed bump of the present invention, the connection between the piston rod end of the lifting cylinder 7 and the waist-shaped hole 6 of the hidden connector 5 of the longitudinal guide rail 2 is a movable connection, so as to meet the requirement that the waist-shaped hole 6 has a certain range of displacement in the horizontal direction at the connection point, and the displacement range is not less than the lateral displacement range of the lifting plate 1 when the speed bump is impacted, thereby reducing the lateral impact on the lifting cylinder 7 and improving the service life of the lifting cylinder 7. The waist-shaped hole 6 corresponds to the vertical direction of the speed bump.

[0027] An air-operated lifting speed bump of the present invention, the high-pressure gas storage tank 9 is connected to the low-pressure gas storage tank 10 through a pressure regulating valve. The low-pressure gas storage tank 10 is connected to the lifting cylinder 7 and the energy-blocking cylinder 8 through a solenoid valve. The high-pressure gas storage tank 9 is externally connected to an air pump through a pipeline, and the general continuous pressure is 6-8 KG / cm². The pressure regulating valve is used to control the low-pressure gas storage tank 10 to maintain a constant continuous operating pressure, so that its continuous pressure is maintained at 3-4 KG / cm², so as to maintain stable energy output, thereby reducing energy loss and enhancing the stability of the lifting of the lifting cylinder.

[0028] An air-operated lifting speed bump of the present invention, the total contact gap between the two sides of the longitudinal guide rail 2 embedded in the groove rail formed by the high-pressure gas storage tank 9 and the low-pressure gas storage tank 10 is controlled at about 3 mm, ensuring smooth vertical lifting of the longitudinal guide rail and the groove rail, reducing friction, so as to improve the overall stability. The effective running distance of the longitudinal guide rail 2 in the groove rail is greater than the lifting running distance of the piston rod end of the lifting cylinder 7 to the lifting plate 1, and at the same time, it is ensured that the lateral displacement range of the lifting plate 1 of the speed bump when impacted is not greater than the displacement range of the waist-shaped hole 6 of the longitudinal guide rail 2 at the connection point.

[0029] An air-operated lifting speed bump of the present invention, the arrangement quantity of the lifting cylinder 7 and the energy-blocking cylinder 8 is considered in terms of the width of the road and the unit weight of the passing vehicles. Generally, the arrangement quantity of the lifting cylinder 7 is 2-4, preferably 3. The energy-blocking cylinder 8 is arranged alternately with the lifting cylinder 7, and the arrangement quantity of the energy-blocking cylinder 8 between adjacent lifting cylinders 7 is not less than 1.

[0030] During use, first preset the ground trench tunnel, then assemble the power assembly and connect the lifting plate. Then, make a programmed connection and cooperative use with existing traffic signal systems, or driving-in induction speed measurement systems, or pedestrian passage induction systems, or existing technical devices such as road gates, access control, and license plate recognition systems to complete the overall assembly.

[0031] Preset the ground trench tunnel: First, at the crossing where the speed bump is to be preset, preset the ground trench tunnel for the speed bump and the embedded tunnel for the electrical circuit, and place the load-bearing bracket into the ground trench tunnel for installation.

[0032] Assembly of the power assembly and connection of the lifting plate: Arrange the lifting cylinders 7 and the energy-blocking cylinders 8 alternately and evenly on the inner crossbeam frame 11 of the trough rail composed of the high-pressure gas storage tank 9 and the low-pressure gas storage tank 10. The high-pressure gas storage tank 9 is connected to the low-pressure gas storage tank 10 through a pressure regulating valve. The low-pressure gas storage tank 10 is connected to the lifting cylinders 7 and the energy-blocking cylinders 8 through solenoid valves. The high-pressure gas storage tank 9 is externally connected to a pressure pump through a pipeline. The cylinder holes 12 of the longitudinal guide rail 2 pass through the lifting cylinders 7 and the energy-blocking cylinders 8. Pass the piston rod end of the lifting cylinder 7 through the waist-shaped hole 6 and lock it in the concealed connector 5 with a nut. Connect the side plates 3 to the longitudinal guide rail 2 of the lifting plate 1 in sections through the hinge shaft 4. Connect the adjacent side plates 3 into a whole through the pin locking parts and lock them with the limit screws 14. Install the signal indicator light 18.

[0033] General assembly: Install the lifting ring 16, hoist and place the power assembly and the lifting plate 1 on the load-bearing bracket, so that the edge bracket 13 of the trough rail is located on the load-bearing bracket. Connect each solenoid valve, signal indicator light 18, etc. to the control cabinet system through the circuit, and connect and program the control cabinet through devices such as traffic signal lights, or driving-in induction speed measurement, or pedestrian passage induction and other existing technologies to complete the general installation.

[0034] Speed bump operation: Take the scenarios of the crossings connected to the induction speed measurement device, the crossings connected to the traffic signal system, and the crossings connected to the road gate, access control, license plate recognition system as examples.

[0035] At the crossing connected to the induction speed measurement device, the lifting plate 1 is initially in a raised state, and the yellow light of the signal indicator light 18 on the side plate 3 of the lifting plate 1 flashes, informing the driver to slow down ahead. After the vehicle enters the induction speed measurement area and decelerates, when the calculated value of the induction speed measurement device is lower than the speed limit value preset in the control cabinet, the lifting cylinders 7 and the energy-blocking cylinders 8 drive the lifting plate 1 to return to its position, and the lifting plate 1 descends to be parallel to the ground, forming a passable channel, and the vehicle can pass smoothly; if the vehicle entering does not decelerate and the calculated value of the induction speed measurement device exceeds the speed limit value preset in the control cabinet, the vehicle will pass through the speed bump bumpily and be forced to decelerate.

[0036] At the crossing connected to the traffic signal system, when the yellow light of the traffic signal system is on, the yellow light of the signal indicator light 18 on the side plate 3 of the lifting plate 1 flashes, informing the driver to slow down ahead. When the red light is on, while forming the speed bump, the signal indicator light 18 on the side plate 3 of the lifting plate 1 switches to red, indicating the driver to stop. When receiving the traffic signal green light passable instruction, the lifting plate 1 drops to be parallel to the ground, forming a passable channel, and the signal indicator light 18 on the side plate 3 of the lifting plate 1 is constantly green.

[0037] At the crossing where the access barrier, access control, and license plate recognition system are connected, the lifting plate 1 is initially in a raised state, and the yellow light of the signal indicator 18 on the side plate 3 of the lifting plate 1 flashes, informing the driver to slow down. When receiving the release recognition instruction from the access barrier, access control, and license plate recognition system, the lifting plate 1 drops to be parallel to the ground, and the green light of the signal indicator 18 on the side plate 3 lights up, forming a passable passage. The vehicle can pass smoothly, improving the passing comfort of vehicle entry and exit.

[0038] Speed bump maintenance: In the environment where the speed bump is installed and applied, the ingress of sand and dust and rainwater is generally not affected. The sand and dust will descend through the gap between the longitudinal guide rail 2 of the lifting plate 1 and the side plate 3, and then pass through the gap between the longitudinal guide rail 2 and the groove rail, and the holes in the cross beam frame 11 in sequence, and finally fall into the ground trough pit. If the sand and dust do not accumulate to exceed the holes between the cross beam frames 11, the overall operation will not be affected. Just regularly lift the lifting plate 1 and the power assembly through the installed lifting ring 16 to clean the sediment in the ground trough pit. Since the components with waterproof performance, low voltage, and weak current are used in the ground trough pit, the ingress of rainwater will not affect the operation performance and operation safety. Just regularly check for any vulnerable parts. In addition, the rubber pad on the surface of the lifting plate 1 is prone to damage during long-term use, and a new rubber pad can be replaced during regular maintenance. After replacement, the speed bump will be as good as new.

[0039] The above are only the preferred implementation modes of the present invention, and do not impose any form of limitation on the present invention. Any simple modification, equivalent change, or decoration made to the above embodiments based on the technical principle of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A pneumatic lifting speed bump, comprising a lifting plate (1) and a power assembly, characterized in that, The lifting plate (1) is composed of longitudinal guide rails (2) and side plates (3). On both sides of the top of the longitudinal guide rails (2), side plates (3) are respectively connected through hinge shafts (4). The power assembly is composed of a lifting cylinder (7), a damping cylinder (8), a high-pressure gas storage tank (9) and a low-pressure gas storage tank (10). The high-pressure gas storage tank (9) and the low-pressure gas storage tank (10) are of a cuboid steel tank structure. The high-pressure gas storage tank (9) and the low-pressure gas storage tank (10) are welded into an integral structure of a trough rail through a cross beam frame (11) at a certain distance. A number of lifting cylinders (7) and damping cylinders (8) are arranged at intervals and evenly installed on the cross beam frame (11) inside the trough rail. The width of the longitudinal guide rail (2) corresponds to the trough width of the trough rail. The total contact gap between the two sides of the longitudinal guide rail (2) embedded in the trough rail formed by the high-pressure gas storage tank (9) and the low-pressure gas storage tank (10) is controlled at about 3 mm. The bottom of the longitudinal guide rail (2) is provided with cylinder holes (12) corresponding to the positions and sizes of the lifting cylinder (7) and the damping cylinder (8), so that the lifting cylinder (7) and the damping cylinder (8) are embedded in the longitudinal guide rail (2). The top of the longitudinal guide rail (2) is evenly provided with concealed connectors (5). The top of the concealed connector (5) is recessed, and a waist-shaped hole (6) is provided in the center. The piston rod end of the lifting cylinder (7) is connected to the longitudinal guide rail (2) through the concealed connector (5). The connection between the piston rod end of the lifting cylinder (7) and the waist-shaped hole (6) of the concealed connector (5) of the longitudinal guide rail (2) is a movable connection to meet the requirement that the waist-shaped hole (6) has a certain range of displacement in the horizontal direction at the connection point. The displacement range is not less than the lateral displacement range of the lifting plate (1) when the speed bump is impacted. The waist-shaped hole (6) corresponds to the vertical direction of the speed bump. The piston rod end of the damping cylinder (8) abuts against the inner wall of the longitudinal guide rail (2).

2. The pneumatic lifting speed bump according to claim 1, characterized in that, The side plates (3) are arranged in sections and evenly divided into 2 to 4 sections according to the unit lane width. The adjacent side plates (3) are connected through pin locks. The inner side of the side plates (3) is provided with load-bearing fulcrums (17). A signal indicator light (18) is provided on the driving side of the side plates (3). Limit baffles (15) are provided at both ends of the side plates (3). Rubber pads are provided on the top surface of the longitudinal guide rail (2) and the outer surface of the side plates (3). The rubber pads are coated with warning colors. Hoisting holes are provided on the longitudinal guide rail (2) to install lifting rings (16).

3. The pneumatic lifting speed bump according to claim 1, characterized in that, The hinge shaft (4) is a core-pulling hinge. Lubricating oil is filled in the hinge shaft (4). A limit screw (14) is provided on the longitudinal guide rail (2) at the joint of the hinge shaft (4).

4. The pneumatic lifting speed bump according to claim 1, characterized in that, The high-pressure gas storage tank (9) and the low-pressure gas storage tank (10) are connected through a pressure regulating valve. The low-pressure gas storage tank (10) is sequentially connected to the lifting cylinder (7) and the damping cylinder (8) through a solenoid valve. The high-pressure gas storage tank (9) is externally connected to an air pump through a pipeline.

5. The pneumatic lifting speed bump according to claim 1, characterized in that, The effective in-rail running distance between the longitudinal guide rail (2) and the groove rail is greater than the lifting running distance of the piston rod end of the lifting cylinder (7) with respect to the lifting plate (1), and at the same time, it is ensured that the lateral displacement amplitude of the speed bump lifting plate (1) during impact is not greater than the displacement amplitude of the waist-shaped hole (6) of the longitudinal guide rail (2) at the connection point.

6. The pneumatic lifting speed bump according to claim 1, characterized in that, The arrangement quantities of the lifting cylinder (7) and the energy-blocking cylinder (8) are considered in terms of the width of the road and the unit weight of the passing vehicles. The arrangement quantity of the lifting cylinder (7) is 2 to 4, and the energy-blocking cylinders (8) are arranged alternately with the lifting cylinders (7), and the arrangement quantity of the energy-blocking cylinders (8) between adjacent lifting cylinders (7) is not less than 1.

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