An electric anti-collision buffer vehicle with reversible anti-collision device

Abstract

The application relates to the field of anti-collision buffer vehicles, in particular to an electric anti-collision buffer vehicle with a reversible anti-collision device, which comprises a vehicle body and an anti-collision device arranged at the tail of the vehicle body, the anti-collision device comprises at least two buffer modules which are hingedly connected in sequence along the head-to-tail direction of the vehicle body, the buffer module closest to the vehicle body among the at least two buffer modules is connected to the vehicle body through electric driving up-down overturning, the buffer module is of a hollow structure and is buffered through plastic deformation, an elastic container is arranged in the buffer module, the elastic container is filled with an insulating water-based fire extinguishing agent, a spraying module which is communicated with the elastic container is arranged below the buffer module, the spraying module is used for spraying the water-based fire extinguishing agent to the rear, upward and towards the automobile chassis position when the buffer module is plastic-deformed to extrude the elastic container, so as to suppress open fire and reduce temperature. The application directly reduces the damage caused by collision to passengers, and effectively reduces the hidden danger of fire.

Description

Technical Field

[0001] This application relates to the field of crash cushion vehicle equipment, and more particularly to an electric crash cushion vehicle with a rollover crash protection device. Background Technology

[0002] During road construction, especially on highways and in accident-prone sections, crash cushioning vehicles must be placed behind the construction site or at accident-prone points to ensure the safety of construction workers and passengers. Existing crash cushioning vehicles consist of a vehicle body and a crash protection device located at the rear of the vehicle body. When the crash cushioning vehicle is in operation, the drive unit flips the crash protection device to a horizontal position. When a vehicle collides with the cushioning vehicle from behind, the crash protection device provides cushioning to the moving vehicle body, reducing injury to construction workers. After the operation is completed, the crash protection device flips back to a position perpendicular to the vehicle body.

[0003] In existing technologies, in order to further reduce the impact of a collision on vehicles behind, various methods are often used for buffering, such as metal plastic deformation energy absorption buffering, composite material fragmentation energy absorption, hydraulic damping device energy absorption buffering, or multi-stage buffering using different technologies mentioned above.

[0004] Currently, automobiles are not limited to traditional gasoline-powered vehicles but also include new energy vehicles. Their energy mainly comes from batteries, and the mainstream batteries are lithium iron phosphate and ternary lithium batteries. However, both lithium iron phosphate and ternary lithium batteries belong to liquid lithium-ion batteries, and their basic structure consists of four parts: a positive electrode, a negative electrode, a separator, and an electrolyte. The separator is a key safety barrier; it is located between the positive and negative electrodes to prevent short circuits while allowing lithium ions to pass through. The electrolyte contains a large amount of flammable organic solvents, and it releases oxygen when it burns. When a vehicle collides, the external impact inevitably causes the battery pack to deform. At this time, the separator is prone to breakage or electrolyte leakage, which can lead to a short circuit. The large amount of heat generated by the short circuit causes the local temperature to rise rapidly. Even if external oxygen is isolated, the local temperature of the battery can still rise rapidly to the temperature limit threshold for thermal runaway. The entire process takes only tens of seconds for some batteries, far less than the 5-minute escape time specified in GB38031-2020. Traditional gasoline-powered vehicles also pose a risk of fire due to fuel leaks caused by collisions, leading to deflagration and ignition. Therefore, when subjected to the impact of a car collision, there is a significant fire hazard, greatly shortening the time needed for subsequent rescue. Thus, how to directly reduce the injury to occupants from a collision while effectively mitigating the risk of fire is a pressing issue that needs to be addressed. Summary of the Invention

[0005] In order to effectively mitigate the risk of fire caused by collisions, this application provides an electric crash buffer vehicle with a rollover anti-collision device.

[0006] This application provides an electric anti-collision buffer vehicle with a reversible anti-collision device, which adopts the following technical solution: An electric crash buffer vehicle with a flip-up crash protection device includes a vehicle body and a crash protection device disposed at the rear of the vehicle body. The crash protection device includes at least two buffer modules that are sequentially hinged along the front to rear of the vehicle body. The buffer module closest to the vehicle body is connected to the vehicle body by electric drive and flips up and down. The buffer module has a hollow structure and cushions the impact through plastic deformation. An elastic container is provided inside the buffer module, and the elastic container is filled with an insulating water-based fire extinguishing agent. A spray module is disposed below the buffer module and connected to the elastic container. The spray module is used to spray the water-based fire extinguishing agent backward and upward toward the vehicle chassis when the buffer module plastically deforms and squeezes the elastic container, in order to suppress open flames and cool down.

[0007] By adopting the above technical solution, after the impact angle of the colliding vehicle is furthest from the vehicle body, the buffer module that directly bears the impact will undergo plastic deformation. This plastic deformation will compress the elastic container, thereby atomizing and spraying the water-based fire extinguishing agent pre-stored in the elastic container towards the chassis of the colliding vehicle through the spray module. This can convert part of the kinetic energy carried by the colliding vehicle during the impact into the power for the water-based fire extinguishing agent sprayed from the elastic container. This power is used to suppress the potential fire hazard of the vehicle after the impact and to directly suppress any open flames. If the vehicle chassis carries a relatively large-capacity battery pack, the initial water-based fire extinguishing agent can be used to cool down the battery and isolate oxygen, suppressing the risk of thermal runaway and providing a longer and more sufficient window for subsequent rescue, thus effectively mitigating the risk of fire caused by the collision.

[0008] Optionally, the buffer module includes two opposing buffer plates, a buffer box clamped and fixed between the two buffer plates, and multiple buffer arc tubes. The buffer plates of two adjacent buffer modules are hinged to each other. The two ends of the buffer arc tubes are respectively connected to the two buffer plates. The elastic container is located in the buffer box. The buffer plates of two adjacent buffer modules are connected at least at both ends by a connecting component. The impact force that the connecting component can withstand when bent or stretched is less than that of the buffer arc tube.

[0009] Optionally, the two buffer panels of the buffer module are bent into an arc-shaped plate structure facing each other, and the middle of the buffer panels on the facing sides of the two adjacent buffer modules are hinged. The hinge direction is horizontal, and the two hinged buffer panels are configured to rotate toward the side of the impact point when subjected to impact.

[0010] Optionally, the connecting assembly includes a connecting strap and two connecting base plates respectively fixed to the buffer rails on two adjacent buffer modules. The two ends of the connecting strap are bent towards each other and the ends of the bent portions are fixed to the connecting base plates. The two ends of the connecting strap that are far apart are welded to the connecting base plates.

[0011] Optionally, the connecting strip has a fracture groove, and the tensile force required for the welded part of the bent portion of the connecting strip to fracture is less than the tensile force required for the tensile plastic deformation of the connecting strip.

[0012] Optionally, the buffer box body has at least one corrugated plate structure along the distribution direction of the buffer rails and is configured to maintain the pressure of the elastic container under normal conditions.

[0013] Optionally, the pressure required for bending the buffer arc tube of the buffer module gradually increases from the distance from the vehicle body to the distance from the vehicle body.

[0014] Optionally, the spray module includes a spray pipe, at least one nozzle disposed on the spray pipe for spraying water-based fire extinguishing agent, and several connecting pipes. The spray pipe is configured to be pre-installed on the ground below the buffer box during use. The two ends of the connecting pipes are respectively connected to the elastic container and the spray pipe. The connecting pipes are equipped with pressure valves and / or the nozzles are pressure nozzles that open after reaching a certain pressure.

[0015] Optionally, the resilient container closest to the vehicle body is connected to a siphon tube and a fire extinguisher valve.

[0016] Optionally, the rear of the vehicle body is provided with a control component for controlling the up-and-down tilting of the buffer guard closest to the vehicle body. The control component includes a base and two sets of electric cylinders. One end of the base is hinged to the rear of the vehicle body, and the other end of the base is hinged to the buffer guard closest to the vehicle body. The cylinder body and drive end of one set of electric cylinders are respectively hinged to the vehicle body and the base, and the cylinder body and drive end of the other set of electric cylinders are respectively hinged to the base and the buffer guard closest to the vehicle body.

[0017] In summary, this application includes at least one of the following beneficial technical effects: During temporary road construction, two sets of electric cylinders sequentially drive the base and the buffer panel facing the vehicle body downwards until the three buffer modules are horizontally distributed. Upon impact, the impact force required for plastic deformation or fracture increases from small to large, from the welded joint of the connecting strip to the fixed connection of the connecting strip, from the buffer arc tube furthest from the vehicle body to the buffer arc tube closest to the vehicle body. Simultaneously, because there is a margin for deflection between adjacent hinged buffer panels towards the impact point, the buffer box, in most cases where the impact point is biased to one side, will cause the buffer panels corresponding to the three buffer boxes, in conjunction with the buffer arc tubes, to cause the three buffer modules to deflect relatively towards the impact point. First, the welded joint of the connecting strip on the side of the buffer box furthest from the impact point will break, causing the connecting strip to bear tensile force and undergo plastic tensile deformation. Meanwhile, the connecting strip on the side facing the impact point will bend to form an initial multi-stage buffer energy absorption. Subsequently, the upper sides of the buffer box furthest from the vehicle body... The buffer arc tube is bent to absorb energy a second time. During this process, the buffer box expands by squeezing the elastic container, and the water-based extinguishing agent is sprayed out through the spray module. Since the vehicle body and / or buffer box usually move forward after a collision, the nozzle is positioned relative to the chassis of the impacting vehicle. The initial water-based extinguishing agent prevents possible open flames or thermal runaway of the battery due to the impact. The water film formed by the initial water-based extinguishing agent isolates oxygen, which can effectively suppress the possibility of open flames. At the same time, if it is aimed at the battery pack, the water-based extinguishing agent in the initial buffer box, which is usually much larger than that in a portable fire extinguisher, can effectively cool and isolate oxygen, avoid rapid thermal runaway in the early stage, and buy a relatively sufficient window of opportunity for the escape or rescue of the people inside the impacting vehicle.

[0018] After a collision, the siphon pipe and fire extinguisher valve, which are closest to the vehicle body, are less likely to deform and spray water-based extinguishing agent directly. Even if deformation occurs, the water-based extinguishing agent still has a certain spraying time. At this time, the fire extinguisher valve can be used in conjunction with the siphon pipe to extinguish the fire in a targeted manner, avoiding the water-based extinguishing agent from failing to extinguish the fire due to changes in the vehicle's position or the collision vehicle stopping in a relatively other position. Attached Figure Description

[0019] Figure 1 This is a side view structural diagram of this embodiment.

[0020] Figure 2 This is a side view of the connection between the anti-collision device and the vehicle body in this embodiment.

[0021] Figure 3 This is a bottom view of the connection between the anti-collision device and the vehicle body in this embodiment.

[0022] Figure 4 yes Figure 3 A magnified structural diagram of part A in the middle.

[0023] Figure 5 This is a cross-sectional view of the anti-collision device in this embodiment.

[0024] Explanation of reference numerals in the attached drawings: 1. Vehicle body; 11. Control components; 111. Base; 112. Electric propulsion cylinder; 2. Buffer module; 21. Buffer guardrail; 211. Plate structure; 212. Grille structure; 22. Buffer box; 23. Buffer arc tube; 24. Connecting components; 241. Connecting belt; 242. Connecting seat plate; 243. Welded part; 3. Elastic container; 31. Siphon tube; 32. Fire extinguisher valve; 4. Spray module; 41. Spray pipe; 42. Nozzle; 43. Connecting pipe. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0026] This application discloses an electric crash cushion vehicle with a rollover crash protection device. (See also...) Figure 1 and Figure 2 An electric crash buffer vehicle with a flip-over anti-collision device includes a vehicle body 1 and an anti-collision device located at the rear of the vehicle body 1. The vehicle body 1 is a fully functional automobile body, such as a truck body or a pickup truck body. The anti-collision device includes at least two buffer modules 2 that are sequentially hinged along the front to rear direction of the vehicle body 1. The buffer module 2 closest to the vehicle body 1 is flipped upside down and connected to the vehicle body 1. The buffer module 2 has a hollow structure and cushions the impact through plastic deformation. In this embodiment, three buffer modules 2 are provided for multi-level cushioning.

[0027] Reference Figure 1 and Figure 2 Specifically, the buffer module 2 includes two opposing buffer plates 21, a buffer box 22 clamped and fixed between the two buffer plates 21, and multiple buffer arc tubes 23. The buffer plates 21 on the opposite sides of two adjacent buffer modules 2 are hinged to each other. The two ends of the buffer arc tubes 23 are respectively connected to the two buffer plates 21. There are buffer arc tubes 23 on both sides of the buffer box 22 to balance the impact force. At the same time, there are at least two buffer arc tubes 23 located in the buffer box 22, which are divided into two groups and bent away from each other in the middle to keep the relative position of the buffer plate 21 on the impact side stable when the buffer arc tube 23 deforms, so as to avoid excessive lateral displacement of the impact.

[0028] Reference Figure 1 and Figure 2The two buffer plates 21 of the buffer module 2 are bent into an arc-shaped structure facing each other. The middle of the buffer plates 21 on the facing sides of the two adjacent buffer modules 2 is hinged in the horizontal direction. The two hinged buffer plates 21 are configured to rotate towards the impact point when subjected to impact, so as to make a specific angle change for the impacted part. The buffer plates 21 of the two adjacent buffer modules 2 are connected at least at both ends by connecting components 24. The impact force borne by the connecting components 24 due to bending or tensile fracture is less than that of the buffer arc tube 23. This allows the buffer module 2 as a whole to absorb energy and buffer through the plastic deformation of the buffer arc tube 23 and the buffer box 22. In addition, during the process of making a specific angle change, it can pre-buffer through the bending of the connecting component 24 on the impacted side and the fracture and tensile of the connecting component 24 on the opposite side, so as to achieve a multi-level buffering effect from small to large.

[0029] Reference Figure 3 and Figure 4 The connecting component 24 includes a connecting strap 241 and two connecting seats 242 that are respectively fixed to the buffer rails 21 on two adjacent buffer modules 2. In this embodiment, the connecting seats 242 are integrally formed or fixed to the end of the buffer rail 21 along the horizontal and perpendicular direction of travel of the vehicle body 1 by bolts, and two connecting seats 242 are provided at the end of the same buffer rail 21.

[0030] Reference Figure 3 and Figure 4The two ends of the connecting strip 241 are bent towards each other, and the ends of the bent parts at both ends of the connecting strip 241 are respectively fixed to the connecting seat plates 242 on the two buffer rails 21 on the opposite side of the two adjacent buffer modules 2. The ends of the bent parts at both ends of the connecting strip 241 are welded to the connecting seat plates 242. The connecting strip 241 has a fracture groove, and the tensile force required for the welded part 243 of the bent part of the connecting strip 241 to break is less than the tensile force of the connecting strip 241 under tensile plastic deformation. When subjected to impact, the welded part of the bent part of the connecting strip 241 relative to the connecting seat plate 242 will be broken first. Then, the connecting strip 241 will be stretched and, in conjunction with the fracture groove, will be used for step-by-step pre-buffering through fracture. At the same time, when the three buffer boxes 22 are subjected to impact, the stretching of the connecting strip 241 on the other side of the impacted part will compress the buffer box 22 as a whole through the buffer guard plate 21 instead of directly pulling the buffer guard plate 21 away from the buffer box 22. This optimizes the stability under impact and avoids the situation where the buffer box 22 separates from the buffer guard plate 21 in the initial stage of the collision. The pressure on the buffer box 22 and the buffer guard plate 21 generated by the tension of the connecting strip 241 will be transmitted to the buffer arc tube 23 simultaneously to optimize the stability of multi-stage pre-buffering energy absorption. The buffer panel 21 includes a two-layer plate structure 211 and a grid structure 212 sandwiched between the two-layer plate structures. The grid structure 212 is used to withstand the impact force, while the plate structure 211 is used to balance the force and provide auxiliary pressure holding for the elastic container 3. The connecting parts of the aforementioned connecting strip 241 are all located on the side edge of the grid structure 212.

[0031] Reference Figure 3 and Figure 4 Meanwhile, the pressure required for bending the buffer arc tube 23 of the buffer module 2, which is away from the vehicle body 1 and close to the vehicle body 1, gradually increases, so that the buffer arc tube 23 corresponding to the multiple buffer boxes 22 bends and contracts successively, so as to guide the overall contraction.

[0032] Reference Figure 3 and Figure 5In addition, the buffer box 22 has an elastic container 3 inside, which is used to maintain pressure and protect the elastic container 3. The elastic container 3 is filled with an insulating water-based fire extinguishing agent. Below the buffer module 2, there is a spray module 4 connected to the elastic container 3. The spray module 4 is used to spray the water-based fire extinguishing agent backward and upward towards the vehicle chassis when the buffer module 2 plastically deforms and squeezes the elastic container 3. This is used to suppress possible initial open flames and cool down the vehicle. It is also used to extinguish initial open flames. At the same time, if the collision involves a new energy vehicle, it can also isolate the air in the initial stage through the water film formed. Among them, the sidewall of the buffer box 22 at least along the distribution direction of the buffer rail 21 is a corrugated plate structure, so that when the elastic container 3 is squeezed, the circumferential expansion of the buffer box 22 can provide a certain deformation space for the elastic container 3, and avoid the buffer box 22 not being able to deform effectively due to the low shrinkage rate of the liquid, thus reducing the buffering effect. At this time, the circumferential expansion of the buffer box 22 can make the elastic container 3 have a margin for compression along the travel direction of the vehicle body 1.

[0033] Reference Figure 3 and Figure 5 Specifically, the spray module 4 includes a spray pipe 41, at least one nozzle 42 disposed on the spray pipe 41 for spraying water-based extinguishing agent, and several connecting pipes 43. The other end of the spray pipe 41 is fixed and connected to several nozzles 42. The nozzles 42 are fire-fighting atomizing nozzles and are tilted upwards. The spray pipe 41 is configured to be pre-installed on the ground below the buffer box 22 during use. The two ends of the connecting pipes 43 are respectively connected to the elastic container 3 and the spray pipe 41. The connecting pipes 43 are equipped with a pressure valve and / or the nozzles 42 are pressure nozzles that open after reaching a certain pressure. This allows the elastic container 3, which is compressed after an impact, to open the pressure valve or directly spray the atomized water-based extinguishing agent upwards through the nozzles 42 to play a preventive role. At the same time, the pressurized spraying of the water-based extinguishing agent can also absorb the impact force on the elastic container 3, converting the impact force into the kinetic energy of squeezing the elastic container 3 and causing the water-based extinguishing agent to be sprayed out. In use, the spray pipe 41 can be positioned below several horizontally distributed buffer boxes 22 by a pre-fixed frame and counterweight. When spraying water-based extinguishing agent, the nozzle 42 will have a certain reaction force due to the relatively large pressure, so that the nozzle 42 can maintain a relatively stable upward spray of atomized water-based extinguishing agent.

[0034] Reference Figure 3 and Figure 5Meanwhile, the elastic container 3 closest to the vehicle body 1 is connected to a siphon pipe 31 and a fire extinguisher valve 32. The fire extinguisher valve 32 is a special valve for fire extinguishers and is connected to the siphon pipe 31. The siphon pipe 31 is a flexible hose whose material and length meet fire protection requirements. Since the buffer box 22 closest to the vehicle body 1 is the last to be impacted, it is relatively rare for the buffer box 22 to collapse and squeeze the elastic container 3 directly. As the last buffer structure, the water-based fire extinguishing agent inside will not be quickly sprayed out and consumed. If open flames appear in other parts of the impacted vehicle, they can be extinguished in a targeted manner through the siphon pipe 31 and the fire extinguisher valve 32. When not in use, the siphon pipe 31 and the fire extinguisher valve 32 can be fastened and fixed to the buffer box 21 or the vehicle body 1 using special fire equipment fasteners.

[0035] Reference Figure 1 and Figure 2 Finally, the rear of the vehicle body 1 is provided with a control component 11 for electrically controlling the up-and-down tilting of the buffer panel 21 closest to the vehicle body 1.

[0036] The control assembly 11 includes a base 111 and two sets of electric cylinders 112. The top of one end of the base 111 is hinged to the rear of the vehicle body 1. The top of the other end of the base 111, which is opposite to the direction of travel of the vehicle body 1, is hinged to the buffer panel 21 closest to the vehicle body 1. The cylinder body and drive end of one set of electric cylinders 112 are respectively hinged to the bottom of the vehicle body 1 and the base 111 at the end facing the vehicle body 1. The cylinder body and drive end of the other set of electric cylinders 112 are respectively hinged to the bottom of the base 111 at the end away from the vehicle body 1 and the bottom of the buffer panel 21 closest to the vehicle body 1. By extending and retracting the two sets of electric cylinders 112 one after another, the buffer panel 21 closest to the vehicle body 1 can be flipped up and down electrically, so that the three buffer boxes 22 are horizontally facing backward as a buffer, or flipped up and can be kept vertical or stored in the compartment of the vehicle body 1.

[0037] The implementation principle of this application embodiment is as follows: during temporary road construction, two sets of electric push cylinders 112 drive the base 111 and the buffer panel 21 facing the vehicle body 1 to rotate downwards in turn until the three buffer modules 2 are distributed in the horizontal direction. Upon impact, the impact force required for plastic deformation or fracture increases from small to large. This occurs at the welded portion 243 of the connecting band 241, the fixed connection portion of the connecting band 241, the buffer arc tube 23 furthest from the vehicle body 1, and the buffer arc tube 23 closest to the vehicle body 1. Simultaneously, because there is a margin for deflection towards the impact-bearing side between adjacent hinged buffer plates 21, the buffer box 22, in most cases where the impact point is biased to one side, will have its corresponding buffer plates 21 of the three buffer boxes 22, in conjunction with the buffer arc tubes 23, deflect relatively towards the impact-bearing side. This first breaks the welded portion 243 of the connecting band 241 on the side of the buffer box 22 furthest from the impact point, causing the connecting band 241 to bear the tensile force and undergo plastic stretching deformation. Meanwhile, the connecting band 241 on the opposite side bearing the impact point is bent to form an initial multi-stage buffer energy absorption. Subsequently, this will... The buffer arc tubes 23 on both sides of the buffer box 22, which is away from the vehicle body 1, are bent to absorb energy for a second time. During this process, the buffer box 22 expands by squeezing the elastic container 3, and the water-based fire extinguishing agent is sprayed out through the spray module 4. Since the vehicle body 1 and / or the buffer box 22 usually move forward of the vehicle body 1 after the collision, the nozzle 42 will be positioned relative to the chassis of the impacting vehicle. Thus, the initial water-based fire extinguishing agent can prevent possible open flames or thermal runaway of the battery due to the impact. The water film formed by the initial water-based fire extinguishing agent isolates oxygen and can effectively suppress the possibility of open flames. At the same time, if it is aimed at the battery pack, the water-based fire extinguishing agent in the initial buffer box 22, which is usually much larger than that of a portable fire extinguisher, can effectively cool and isolate oxygen, avoid rapid thermal runaway in the early stage, and buy a relatively sufficient window of opportunity for the escape or rescue of the people inside the impacting vehicle. The siphon pipe 31 and the fire extinguisher valve 32, which are closest to the vehicle body 1, are less likely to directly deform and spray water-based extinguishing agent. Even if deformation occurs, the water-based extinguishing agent still has a certain spraying time. At this time, the fire extinguisher valve 32 can be used in conjunction with the siphon pipe 31 to extinguish the fire in a targeted manner, so as to avoid the water-based extinguishing agent failing to play its extinguishing role due to changes in the position of the vehicle body 1 or the collision vehicle stopping in a relatively other position.

[0038] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electric crash cushion vehicle with a reversible anti-collision device, characterized in that: The device includes a vehicle body (1) and an anti-collision device located at the rear of the vehicle body (1). The anti-collision device includes at least two buffer modules (2) that are sequentially hinged along the front to rear of the vehicle body (1). The buffer module (2) closest to the vehicle body (1) is connected to the vehicle body (1) by electric drive and flipping up and down. The buffer module (2) is a hollow structure and is buffered by plastic deformation. The buffer module (2) is provided with an elastic container (3) inside, and the elastic container (3) is filled with an insulating water-based fire extinguishing agent. A spray module (4) connected to the elastic container (3) is provided below the buffer module (2). The spray module (4) is used to spray the water-based fire extinguishing agent backward and upward towards the vehicle chassis when the buffer module (2) is plastically deformed and squeezes the elastic container (3), in order to suppress open flames and cool down.

2. An electric anti-collision buffer vehicle with a reversible anti-collision device according to claim 1, characterized in that: The buffer module (2) includes two opposing buffer plates (21), a buffer box (22) clamped and fixed between the two buffer plates (21), and a plurality of buffer arc tubes (23). The buffer plates (21) of two adjacent buffer modules (2) are hinged to each other. The two ends of the buffer arc tubes (23) are respectively connected to the two buffer plates (21). The elastic container (3) is located inside the buffer box (22). The buffer plates (21) of two adjacent buffer modules (2) are connected at least at both ends by a connecting component (24). The impact force borne by the connecting component (24) when it is bent or stretched and broken is less than that of the buffer arc tubes (23).

3. An electric anti-collision buffer vehicle with a reversible anti-collision device according to claim 2, characterized in that: The two buffer plates (21) of the buffer module (2) are bent into an arc-shaped plate structure facing each other. The middle of the buffer plates (21) on the opposite sides of the two adjacent buffer modules (2) are hinged. The hinge direction is horizontal and the two hinged buffer plates (21) are configured to rotate toward the side of the impact area when subjected to impact.

4. An electric anti-collision buffer vehicle with a reversible anti-collision device according to claim 2, characterized in that: The connecting component (24) includes a connecting strip (241) and two connecting base plates (242) respectively fixed to the buffer rails (21) on two adjacent buffer modules (2). The two ends of the connecting strip (241) are bent towards each other and the ends of the bent parts are fixed to the connecting base plates (242). The bent parts at both ends of the connecting strip (241) are welded to the connecting base plates (242) at opposite ends.

5. An electric anti-collision buffer vehicle with a reversible anti-collision device according to claim 4, characterized in that: The connecting strip (241) has a fracture groove, and the tensile force required for the welded part (243) of the bent portion of the connecting strip (241) to break is less than the tensile force of the connecting strip (241) under tensile plastic deformation.

6. An electric anti-collision buffer vehicle with a reversible anti-collision device according to claim 2, characterized in that: The buffer box (22) has a corrugated plate structure on its sidewalls at least along the distribution direction of the buffer rails (21) and is configured to maintain the pressure of the elastic container (3) under normal conditions.

7. An electric anti-collision buffer vehicle with a reversible anti-collision device according to claim 2, characterized in that: The pressure required for bending of the buffer arc tube (23) from the distance from the vehicle body (1) to the buffer module (2) near the vehicle body (1) gradually increases.

8. An electric anti-collision buffer vehicle with a rollover anti-collision device according to claim 2, characterized in that: The spraying module (4) includes a spraying pipe (41), at least one nozzle (42) disposed on the spraying pipe (41) for spraying water-based fire extinguishing agent, and several connecting pipes (43). The spraying pipe (41) is configured to be pre-installed on the ground below the buffer box (22) when in use. The two ends of the connecting pipe (43) are respectively connected to the elastic container (3) and the spraying pipe (41). The connecting pipe (43) is equipped with a pressure valve and / or the nozzle (42) is a pressure nozzle that opens after reaching a certain pressure.

9. An electric crash buffer vehicle with a reversible anti-collision device according to claim 1, characterized in that: The elastic container (3) closest to the vehicle body (1) is connected to a siphon tube (31) and a fire extinguisher valve (32).

10. An electric anti-collision buffer vehicle with a reversible anti-collision device according to claim 2, characterized in that: The rear of the vehicle body (1) is provided with a control component (11) for controlling the up-and-down flipping of the buffer rail (21) closest to the vehicle body (1). The control component (11) includes a base (111) and two sets of electric cylinders (112). One end of the base (111) is hinged to the rear of the vehicle body (1), and the other end of the base (111) is hinged to the buffer rail (21) closest to the vehicle body (1). The cylinder body and drive end of one set of electric cylinders (112) are respectively hinged to the vehicle body (1) and the base (111), and the cylinder body and drive end of the other set of electric cylinders (112) are respectively hinged to the base (111) and the buffer rail (21) closest to the vehicle body (1).

Images