Flame-retardant anti-collision buffer vehicle for new energy vehicle

Abstract

The invention relates to a new energy vehicle flame-retardant anti-collision buffer vehicle which comprises a bearing truck and a buffer module, and the buffer module comprises a front support hinged to the tail of the bearing truck; the rear bracket is connected to the front bracket; the metal bent pipe and the buffer cushion are arranged between the front bracket and the rear bracket; the fireproof blanket is accommodated on the lower end surface of the front bracket; the fire-retardant bags are filled with fire-retardant agents, jet orifices are formed in the upper end faces of the fire-retardant bags, temperature control switches are arranged at the jet orifices, the temperature control switches are used for sensing the environment temperature and opening the jet orifices after the environment temperature reaches the set temperature, and the multiple fire-retardant bags are arranged on the fireproof blanket in an array mode; the ejection device is used for driving the fireproof blanket to be unfolded and flatly laid below a rear vehicle chassis when the vehicle collides with the rear support. After a rear vehicle collides with the anti-collision buffer vehicle, the fireproof blanket can be automatically ejected to the position below the chassis of the rear collision vehicle, and the fire retardant is sprayed to the chassis of the collision vehicle after the collision vehicle catches fire, so that the spontaneous combustion process of the new energy vehicle is restrained in the first time.

Description

Technical Field

[0001] The present application relates to the technical field of motor vehicles, and in particular to a flame-retardant anti-collision buffer vehicle for new energy vehicles. Background Art

[0002] As a core piece of road safety equipment, the collision avoidance vehicle is primarily used in highway, urban road, bridge, and tunnel construction. It is particularly well-suited for areas with high traffic volume and high speeds. It creates a buffer zone at the accident scene, protecting emergency personnel and equipment while also reducing the impact acceleration experienced by occupants of the impacting vehicle. Through the dual deformation of its aluminum energy-absorbing modules and frame structure, it can absorb the impact energy of a rear-end collision involving a 2-ton vehicle at 100 km / h.

[0003] In the related art, the Chinese patent application with application number CN202111400687.4 proposes an impact-resistant and durable anti-collision device and an anti-collision buffer vehicle. The anti-collision module is set between the buffer module and the mounting plate. The anti-collision module includes a front anti-collision group set on the side of the mounting plate and a rear anti-collision group set on the side of the buffer module. When the buffer module is hit, the buffer module drives the rear anti-collision group to move closer to the mounting plate and the front anti-collision group. At this time, through the repulsive effect between the rear anti-collision group and the front anti-collision group, the rear anti-collision group drives the buffer module to move away from the mounting plate, and the front anti-collision group drives the mounting plate to move away from the buffer module. This design prevents the buffer module from colliding with the mounting plate, thereby protecting the cylinder drive device. By setting the anti-collision module, this application can protect the cylinder drive device when a rear vehicle collides, prevent the cylinder drive device from being scrapped due to damage due to impact, and reduce replacement costs.

[0004] However, with the continuous development of new energy technologies, the proportion of new energy vehicles in the total number of cars has continued to rise. Therefore, the proportion of new energy vehicles colliding with crash carts at construction sites or accident sites is also relatively high. Compared with fuel vehicles, new energy vehicles are more likely to catch fire after a collision due to the battery packs installed on their chassis, and the fire spreads rapidly. The current crash carts are no longer sufficient to deal with the dangerous situations after a collision with new energy vehicles by simply absorbing the impact energy. Summary of the Invention

[0005] In order to improve the problem that new energy vehicles are prone to spontaneous combustion after colliding with anti-collision buffer vehicles and the dangerous situation cannot be handled in time, the present application provides a flame-retardant anti-collision buffer vehicle for new energy vehicles.

[0006] The flame-retardant anti-collision buffer vehicle for new energy vehicles provided in this application adopts the following technical solutions: A flame-retardant anti-collision buffer vehicle for new energy vehicles, comprising a load-bearing truck and a buffer module, wherein the buffer module comprises: A front bracket is hingedly mounted on the rear of the load-bearing truck; a rear bracket connected to the front bracket; A metal elbow and a buffer pad are provided between the front bracket and the rear bracket; Fire blanket, stored at the lower end surface of the front bracket; A fire retardant bag filled with a fire retardant, with an injection port provided on the upper end surface, and a temperature control switch provided at the injection port. The temperature control switch is used to sense the ambient temperature and open the injection port when the set temperature is reached. A plurality of such fire retardant bags are arranged in an array on the fire blanket; and The ejection device is used to drive the fire blanket to deploy and lay flat under the chassis of the rear vehicle when a vehicle hits the rear bracket.

[0007] Furthermore, the free end of the fire blanket is fixedly connected to a central counterweight head and at least two side counterweight heads arranged on both sides of the central counterweight head. The side counterweight heads are flexibly connected to the central counterweight head, and the ejection device is used to drive the central counterweight head to be ejected to an area more than 2.5m behind the rear bracket and within 12cm from the ground.

[0008] Furthermore, the ejection device includes: a storage box, installed below the front bracket and having an opening at one end close to the rear bracket, wherein the fire blanket is folded in a wave shape in the storage box; An ejection rod is slidably disposed on the storage box, and the central counterweight head is movably connected to the free end of the ejection rod; A power storage mechanism for storing initial kinetic energy for the ejection rod; and The firing locking mechanism is used to lock the ejection rod that stores initial kinetic energy and unlock the ejection rod when the vehicle hits the rear bracket.

[0009] Furthermore, the firing locking mechanism includes: Two folding rods are provided opposite to each other, and the bending portions of the folding rods are hinged to the storage box, and the inner corners of the two folding rods are arranged to face each other; A locking hook is fixed to one end of the folding rod close to the ejection rod; The lock cylinder is fixedly connected to the end of the ejection rod close to the lock hook, and the inner wall of the lock cylinder is fixedly connected with a hook ring that matches the two lock hooks; when the two folding rods are separated from the end of the lock cylinder, the lock hooks are disconnected from the hook ring; A resetting elastic member is provided between the two folding rods and is used to drive the end of the folding rod provided with the lock hook to press against the inner wall of the lock cylinder; and The trigger assembly is used for driving the ends of the two folding rods away from the lock cylinder to move away from each other when the vehicle hits the rear bracket.

[0010] Furthermore, the trigger component includes: The first cylinder body is located between the two folding rods at one end away from the lock cylinder, and is provided with a first piston rod at both axial ends thereof, and the first piston rod points to the inner wall of the adjacent folding rod; There are multiple triggering members distributed at least in the middle and both ends of the rear bracket in the length direction, and are used to transport fluid medium into the first cylinder to move the two first piston rods away from each other when a vehicle hits the triggering members.

[0011] Furthermore, the trigger component includes: an impact sensor for detecting whether a vehicle impacts the rear support; an electromagnet, controllably connected to the impact sensor and energized when the impact sensor detects a vehicle impact; and The repulsive magnet is installed on the inner wall of the folding rod away from the lock cylinder, and the magnetic pole of the repulsive magnet close to the electromagnet is the same as the magnetic pole of the opposite side of the electromagnet after power is supplied.

[0012] Furthermore, the storage box is hinged on the front bracket and its hinge axis is vertically arranged. The firing locking mechanism also includes a steering assembly for driving the storage box to rotate toward one end of the rear frame when the rear vehicle offsets and hits the end.

[0013] Furthermore, the steering assembly includes: There are two lateral movable parts and they are arranged on both sides of the lock cylinder. The movable parts of the lateral movable parts abut against the edges of both sides of one end of the storage box away from the rear bracket. The lateral movable parts are connected to the trigger assembly. When the trigger assembly detects that the vehicle hits the rear bracket, it drives the lateral movable parts to work simultaneously or with a delay; and when the trigger assembly detects that the vehicle has offset and hit one end of the rear frame, it controls the lateral movable parts at the diagonal end to work.

[0014] Furthermore, an elastic rod is connected between the middle area counterweight head and the side area counterweight head.

[0015] Furthermore, the power storage mechanism includes: a force storage plate, fixedly connected to one end of the ejection rod close to the front bracket; A plurality of guide rods are provided, one end of which is fixed to one of the power storage plate and the storage box, and the other end of which slides through the other one of the power storage plate and the storage box; a force storage spring, sleeved on the guide rod and with its two ends respectively pressed against the force storage plate and the storage box; and The buffer plate is installed on the storage box and is located on the side of the force storage plate close to the front bracket. When the ejection rod pops out, it drives the force storage plate to hit the buffer plate to separate the middle counterweight head from the ejection rod.

[0016] In summary, the beneficial technical effects of this application are: 1. After the rear vehicle collides with the anti-collision vehicle, the ejection device ejects the central counterweight head to the bottom of the rear collision vehicle's chassis, allowing the fire blanket to deploy under the rear collision vehicle's chassis. If the rear collision vehicle is a new energy vehicle and the battery pack catches fire, the flames ejected from the battery pack heat the temperature control switch on the fire retardant bag, causing it to open. At this time, the high-pressure fire retardant filled in the fire retardant bag is ejected upward from the injection port, automatically spraying the fire retardant onto the bottom of the self-igniting new energy vehicle, thereby suppressing the spontaneous combustion process of the new energy vehicle in the first place and preventing the fire from spreading rapidly and causing damage to the collision vehicle. 2. By installing a high-pressure fire retardant tank on the load truck, high-pressure fire retardant can be continuously delivered to the fire retardant bags in the fire blanket after the fire retardant stored in the bags is sprayed. This can form a continuous, multi-point fire retardant spraying, thereby promptly handling the risk of spontaneous combustion. This can reliably solve the current common phenomenon that new energy vehicles are burned out before firefighters can arrive after spontaneous combustion. In the process of handling the risk of spontaneous combustion, the fire blanket is ejected to the bottom of the collision vehicle chassis, mainly targeting the fire points such as the battery pack, and the fire retardant is sprayed from bottom to top, which has a better fire suppression effect. Without the need for personnel to approach the collision vehicle, the probability of rescue personnel being injured when handling the fire can be greatly reduced. 3. Through the coordinated arrangement of the force storage mechanism, firing lock mechanism, and trigger assembly, when a rear vehicle collides with any position of the rear bracket, the ejection rod on the storage box can be triggered to eject toward the rear collision vehicle, thereby driving the central counterweight head and fire blanket to eject backward, so that the fire blanket is deployed under the chassis of the rear collision vehicle; 4. By hingedly mounting the storage box on the front bracket and providing lateral movable parts on both sides of the hinge, when a rear vehicle collides with one end of the rear bracket, the storage box can be autonomously controlled to deflect toward that end, and then the fire blanket is ejected with a delayed delay. This allows the fire blanket to be ejected as accurately as possible to the underside of the chassis of the collision vehicle that is parked to the rear of the anti-collision vehicle after the collision, thereby ensuring rescue efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a side view of the overall structure of an embodiment of the present application; Figure 2 1 is a schematic diagram of the overall structure of the buffer module according to an embodiment of the present application; Figure 3 This is a schematic structural diagram of a fire blanket in a folded state according to an embodiment of the present application; Figure 4 This is a bottom view of the overall structure of the buffer module according to an embodiment of the present application; Figure 5 It is along Figure 4 Schematic diagram of the cross-sectional structure along line AA; Figure 6is a bottom view of the buffer module of the embodiment of the present application from another perspective; Figure 7 yes Figure 6 A partial enlarged schematic diagram of part B.

[0018] Description of reference numerals: 1. Loading truck; 21. Front bracket; 22. Rear bracket; 23. Metal elbow; 24. Buffer pad; 31. Fire blanket; 311. Central counterweight; 312. Side counterweight; 313. Elastic rod; 32. Fire retardant bag; 321. Injection nozzle; 322. Temperature control switch; 4. Storage box; 41. Power storage plate; 42. Guide rod; 43. Power storage spring; 44. Buffer plate; 45. Long slot; 5. Ejection rod; 51. Lock cylinder; 52. Shackle; 53. Extension; 61. Folding rod; 62. Lock hook; 63. Resetting elastic member; 71. First cylinder; 72. First piston rod; 73. Trigger member; 9. Lateral movable parts. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solution of this application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application. Example 1

[0020] The embodiment of the present application discloses a flame retardant anti-collision buffer vehicle for new energy vehicles. Figure 1 、 Figure 2 and Figure 3 , which includes a load-bearing truck 1 and a buffer module, the buffer module includes: The front bracket 21 is hingedly mounted on the rear of the load-carrying truck 1. The rear of the load-carrying truck 1 is hingedly provided with a hydraulic cylinder, an air cylinder or an electric push rod for driving the front bracket 21 to flip in the horizontal and vertical directions. The flipping structure of the front bracket 21 is a conventional technical means and will not be repeated here.

[0021] The rear bracket 22 is connected to the front bracket 21 , and the two are spaced apart.

[0022] The metal bent pipe 23 and the buffer pad 24 are arranged between the front bracket 21 and the rear bracket 22, wherein two metal bent pipes 23 are provided and the arc tops of the two are arranged oppositely, and the buffer pad 24 can be a honeycomb aluminum alloy plate or other forms of metal energy-absorbing plates.

[0023] The fire blanket 31 is housed at the lower end surface of the front bracket 21 and is specifically made of fire-retardant fibers and is folded in a wave shape in the horizontal direction so that the free end of the fire blanket 31 can be quickly unfolded and flattened after being stretched.

[0024] The fire retardant bag 32 is filled with a fire retardant agent and has an injection port 321 on its upper end. A temperature-controlled switch 322 is located at the injection port 321. The temperature-controlled switch 322 senses the ambient temperature and activates the injection port 321 when the set temperature is reached. Multiple fire retardant bags 32 are arranged in an array on the fire blanket 31. In a specific configuration, the fire retardant bags 32 can be attached to the upper surface of the fire blanket 31 or wrapped within the fire blanket 31 with only the injection port 321 and temperature-controlled switch 322 exposed. In a preferred embodiment, the fire blanket 31 is configured as a double-layer structure, encasing the fire retardant bags 32 for protection. Furthermore, the fire retardant is pressurized and injected into the fire retardant bag 32, with the injection port 321 configured as an atomizing nozzle. In another embodiment, a hose can be connected to the fire retardant bag 32 and connected to a high-pressure fire retardant tank (not shown) mounted on the carrier truck 1. The hose is also embedded in the double-layer fire blanket. After the stored fire retardant in the fire retardant bag 32 is completely sprayed, the high-pressure fire retardant tank can continue to supply the high-pressure fire retardant into the fire retardant bag 32. Furthermore, the temperature-controlled switch 322 can be a micro-control element consisting of a temperature sensor and a micro-solenoid valve, or it can be a hot-melt plastic, sealing wax, or a liquid-filled thermosensitive glass bulb / tube sealed at the injection port 321. Considering practical cost and convenience, in this embodiment, a hot-melt plastic plug is used as the temperature-controlled switch 322.

[0025] The ejection device is used to drive the fire blanket 31 to unfold and lay flat under the rear vehicle chassis when a vehicle hits the rear bracket 22.

[0026] And refer to Figure 3 The free end of the fire blanket 31 is fixedly connected to a central counterweight head 311 and at least two side counterweight heads 312 on both sides of the central counterweight head 311. The side counterweight heads 312 are flexibly connected to the central counterweight head 311. Specifically, an elastic rod 313 is connected between the central counterweight head 311 and the side counterweight heads 312. The elastic rod 313 can be a hollow high-toughness plastic rod. The ejection device is used to drive the central counterweight head 311 to eject to an area more than 2.5m behind the rear bracket 22 and within 12cm from the ground. The setting of more than 2.5m is to ensure that the fire blanket 31 can span the area from the front of the collision vehicle to the battery pack, and the setting of less than 12cm from the ground is to ensure that the ejected central counterweight head 311 can enter under the chassis of the collision vehicle, so as to ensure that the fire blanket 31 can eject to the chassis battery pack of most new energy vehicles.

[0027] Therefore, the anti-collision buffer vehicle of the present application is parked in the construction area, and the buffer module is flipped to a horizontal position. When the vehicle collides with the rear bracket 22, the metal bent pipe 23 between the rear bracket 22 and the front bracket 21 first deforms to absorb the initial impact energy, and then the buffer pad 24 collapses and deforms to further absorb the impact energy, which can effectively reduce the vehicle collision energy, protect construction workers and rear vehicle occupants, and avoid secondary injuries.

[0028] During this process, the ejection device ejects the central counterweight head 311 to the bottom of the chassis of the rear collision vehicle. The central counterweight head 311 carries the two side counterweight heads 312 to unfold the fire blanket 31 under the chassis of the rear collision vehicle. Once the rear collision vehicle is a new energy vehicle and the battery pack catches fire, the flame ejected from its battery pack heats the temperature control switch 322 on the fire retardant bag 32, for example, it can melt the seal made of hot-melt plastic. At this time, the fire retardant filled with high pressure in the fire retardant bag 32 is ejected upward from the injection port 321, which can automatically spray the fire retardant on the bottom of the self-igniting new energy vehicle, so as to suppress the self-ignition process of the new energy vehicle in the first time and avoid the rapid spread of fire and damage to the collision vehicle.

[0029] Moreover, once the fire retardant stored in the multiple fire retardant bags 32 in the fire blanket 31 has been sprayed, if there is still fire in the spontaneously combusting vehicle, the high-pressure fire retardant tank valve on the carrying truck 1 can be further opened to continuously transport the high-pressure fire retardant into the fire retardant bags 32 through the hose, and then spray it out from the multiple injection ports 321 on the multiple fire retardant bags 32, forming a continuous, multi-point fire retardant spraying, thereby promptly handling the spontaneous combustion hazard, which can reliably solve the current common phenomenon that new energy vehicles are burned before firefighters arrive after spontaneous combustion. In addition, in the process of handling the spontaneous combustion hazard, the fire blanket 31 is ejected to the bottom of the collision vehicle chassis, mainly targeting the fire points such as the battery pack, spraying the fire retardant from bottom to top, which has a better effect on suppressing the fire, and does not require personnel to approach the collision vehicle, which can greatly reduce the probability of rescue personnel being injured when handling the fire.

[0030] Specifically, refer to Figure 2 、 Figure 4 and Figure 5 , the ejection device includes: The storage box 4 is installed below the front bracket 21 and has an opening at one end close to the rear bracket 22 . The fire blanket 31 is folded in a wave shape in the storage box 4 .

[0031] The ejection rod 5 is slidably arranged on the storage box 4, and the middle counterweight head 311 is movably connected to the free end of the ejection rod 5. Specifically, the ejection rod 5 is arranged along the opening direction of the storage box 4, and the middle counterweight head 311 is gap-mounted on the free end of the ejection rod 5 or is micro-magnetically attracted to the free end of the ejection rod 5.

[0032] The energy storage mechanism is used to store the initial kinetic energy for the ejection rod 5. And The firing locking mechanism is used to lock the ejection rod 5 having the initial kinetic energy stored therein and to unlock the ejection rod 5 when the vehicle hits the rear bracket 22. Figure 5 、 Figure 6 and Figure 7 , which specifically include: There are two folding rods 61 arranged opposite to each other, and their bent parts are hinged on the storage box 4. The inner corners of the two folding rods 61 are arranged facing each other. In the specific setting, the end of the folding rod 61 away from the rear bracket 22 is the long rod section, and the end close to the rear bracket 22 is the short rod section.

[0033] The locking hook 62 is fixed to one end of the folding rod 61 close to the rear bracket 22 , with the hook portion facing outward.

[0034] The lock cylinder 51 is fixed to the end of the ejection rod 5 near the lock hook 62, and the inner wall of the lock cylinder 51 is fixed with a hook ring 52 that is suitable for hooking with the two lock hooks 62; when the two folding rods 61 are separated from the end of the lock cylinder 51, the lock hook 62 is disconnected from the hook ring 52; The reset elastic member 63 is provided between the two folding rods 61 and is used to drive the end of the folding rod 61 with the lock hook 62 to press against the inner wall of the lock cylinder 51. Specifically, the reset elastic member 63 is configured as a tension spring, and both ends are fixed to the inner wall of the long rod section of the folding rod 61. When the lock hook 62 on the folding rod 61 is hooked and connected with the hook ring 52, the reset elastic member 63 is in a stretched state, thereby ensuring that the lock hook 62 and the hook ring 52 will not automatically separate when the load-carrying truck 1 is driving on bumpy roads, thereby preventing the fire blanket 31 from accidentally popping out. The trigger assembly is used to drive the two folding rods 61 away from one end of the lock cylinder 51 to move away from each other when the vehicle hits the rear bracket 22.

[0035] Therefore, when a vehicle collides with the rear bracket 22, the trigger assembly drives the long rod sections of the two folding rods 61 to move away from each other, causing the folding rod 61 to flip over at its bent portion on the storage box 4, so that the short rod sections of the two folding rods 61 are close to each other, thereby causing the two lock hooks 62 to disengage from the hook ring 52 on the lock cylinder 51; then, the energy stored in the force storage mechanism is converted into kinetic energy of the ejection rod 5, causing the ejection rod 5 to be ejected on the storage box 4 toward the rear colliding vehicle, thereby driving the middle counterweight head 311 and the fire blanket 31 to be ejected backward, so that the fire blanket 31 is deployed under the chassis of the rear colliding vehicle.

[0036] Further, refer to Figure 4 、 Figure 5 and Figure 7 , the trigger components mentioned above include: The first cylinder body 71 is located between the two folding rods 61 and one end away from the lock cylinder 51. The first piston rod 72 is provided at both axial ends thereof. The first piston rod 72 points to the inner wall of the long rod section of the adjacent folding rod 61. The first cylinder body 71 is fixedly connected to the lower end surface of the storage box 4. Correspondingly, the folding rod 61 and the ejection rod 5 are also provided on the lower end surface of the storage box 4.

[0037] There are multiple trigger members 73, distributed at least in the middle and at both ends of the rear bracket 22's length. These members are used to deliver fluid into the first cylinder 71 to separate the two first piston rods 72 when a vehicle strikes the trigger members 73. In a specific configuration, the trigger member 73 can also consist of a second cylinder and a second piston rod. Simply attach the second cylinder to the front bracket 21, and press the second piston rod against it. The second cylinder is filled with fluid. A pipe connects the second cylinder to the cavity between the two first piston rods 72 in the first cylinder 71. To ensure the trigger member 73's responsiveness, the second cylinder's cross-section is larger than that of the first cylinder 71.

[0038] Thus, when the rear frame 22 is struck by a vehicle in any rearward orientation, the spacing or partial spacing between the rear frame 22 and the front frame 21 decreases, and the rear frame 22 can push the second piston rod to slide in the second cylinder, thereby transporting the fluid medium in the second cylinder through the pipeline to the cavity between the two first piston rods 72 in the first cylinder 71. This causes the two first piston rods 72 to simultaneously extend from the ends of the first cylinder 71, pushing the long rod sections of the two folding rods 61 away from each other, causing the two locking hooks 62 to disengage from the hook rings 52 on the lock cylinder 51, and the ejection rod 5 drives the fire blanket 31 to eject. Furthermore, because the cross-section of the second cylinder is larger than that of the first cylinder 71, even if the displacement of the rear frame retracted by the impact is relatively short, it can effectively trigger the two first piston rods 72 to trigger, thereby triggering the fire blanket 31 to eject, resulting in a more sensitive response.

[0039] Even if the fire blanket 31 is ejected after a slight collision, it is only necessary to move the second piston rod back, push the ejection rod 5, and fold the fire blanket 31 into the storage box 4, so that the lock cylinder 51 is close to the two lock hooks 62, and then move the two folding rods 61, so that the two lock hooks 62 extend into the lock cylinder 51 and hook and connect with the hook ring 52. Under the condition that the overall structure is not seriously damaged, it can be restored and reassembled for reuse.

[0040] In another feasible embodiment, the trigger member 73 may be a rubber airbag mounted between the front bracket 21 and the rear bracket 22. The rubber airbag is filled with a fluid medium. When the vehicle strikes the rear bracket 22, the rear bracket 22 displaces and squeezes the rubber airbag, which similarly drives the fluid medium in the rubber airbag into the first cylinder 71 and causes the two first piston rods 72 to extend, thereby triggering the fire blanket 31 to be ejected. The rubber airbag can be mounted in a position where it is fixed to the front bracket 21 via a support frame and pressed against the rear bracket 22, embedded in the cushion 24, or in other locations where it can be squeezed and deformed in response to an impact on the rear bracket 22. This is not specifically limited herein.

[0041] In addition, considering that it is usually rare for a colliding vehicle to collide head-on with the crash buffer vehicle, most of the time a side collision will occur. For example, the driver of the rear vehicle may turn after discovering the crash buffer vehicle but cannot completely avoid the collision, causing the rear vehicle to only collide with a part of the rear bracket 22 and stop at the side and rear of the crash buffer vehicle. This will cause the fire blanket 31 to be unable to be accurately ejected toward the colliding vehicle, affecting the rescue efficiency.

[0042] Therefore, in one possible embodiment, referring to Figure 4 and Figure 6 The storage box 4 is hinged on the front bracket 21 and its hinge axis is vertically arranged. The trigger locking mechanism also includes a steering component for driving the storage box 4 to rotate toward one end of the rear frame when the rear vehicle offsets and hits the rear frame.

[0043] The steering assembly includes: There are two lateral movable parts 9, which are arranged on both sides of the lock cylinder 51. The fixed part of the lateral movable part 9 is fixedly connected to the bottom of the front bracket 21, and the movable part abuts against the edges of both sides of the end of the storage box 4 away from the rear bracket 22. The lateral movable part 9 is connected to the trigger component. When the trigger component detects that the vehicle hits the rear bracket 22, it drives the lateral movable part 9 to work simultaneously or with a delay; and when the trigger component 73 detects that the vehicle has offset and hit one end of the rear frame, it controls the lateral movable part 9 at the diagonal end to work.

[0044] In the specific setting, the lateral movable part 9 can be a combination of the above-mentioned second cylinder body and the second piston rod, or it can be the above-mentioned rubber airbag. It is only necessary to clearly ensure that the lateral movable part 9 on the left is connected to the trigger part 73 on the right, and the lateral movable part 9 on the right is connected to the trigger part 73 on the left.

[0045] Thus, when the rear vehicle collides with one end of the rear support 22, for example, the left end of the rear support 22, the trigger member 73 on the left side responds first, and the fluid medium stored therein flows toward the lateral movable member 9 on the right side, causing the movable portion of the lateral movable member 9 to push the right side of the storage box 4 to flip on the front support 21, thereby causing the opening of the storage box 4 to rotate to the left and point downward to the chassis of the colliding vehicle. Even if the trigger member 73 on the right side also responds at the same time, the trigger member 73 on the left side delivers more fluid medium to the lateral movable member 9 on the right side, causing the pushing displacement of the storage box 4 by the lateral movable member 9 on the right side to be greater than that by the lateral movable member 9 on the left side, which can still ensure that the opening of the storage box 4 is deflected to the left.

[0046] Furthermore, it should be clearly stated that the lateral movable members 9 located on the left and right sides must respond prior to the first cylinder 71, meaning that the storage box 4 must be controlled to steer before the fire blanket 31 is ejected. The lateral movable members 9 can also be connected to the first cylinder 71, with a one-way valve installed in the connecting pipe to allow only the fluid medium in the lateral movable members 9 to flow into the first cylinder 71. To achieve a delay effect, the connecting pipe can be set to a certain length to extend the time the fluid medium circulates in the pipe, allowing the lateral movable members 9 to drive the storage box 4 into position. Furthermore, the trigger member 73 located in the upper middle portion of the rear bracket 22 can be connected to the two lateral movable members 9 on either side via a diverter, or it can be connected directly to the first cylinder 71 via an extension pipe, as long as the aforementioned delay effect is achieved.

[0047] In order to ensure that the fire blanket 31 can have a large initial kinetic energy storage, refer to Figure 4 、 Figure 5 and Figure 6 , the aforementioned power storage mechanism includes: The power storage plate 41 is fixed to one end of the ejection rod 5 close to the front bracket 21 , and is specifically located at the lower end surface of the storage box 4 .

[0048] There are several guide rods 42, one end of which is fixed to one of the power storage plate 41 and the storage box 4, and the other end slides through the power storage plate 41 and the other one of the storage box 4. In this embodiment, the guide rod 42 is set to pass through the power storage plate 41 and is the same length as the opening direction of the storage box 4. Multiple guide rods 42 are set parallel to the ejection rod 5 and are evenly distributed on both sides of the ejection rod 5.

[0049] A force storage spring 43 is sleeved on the guide rod 42 and has two ends pressed against the force storage plate 41 and the storage box 4 respectively; and The buffer plate 44 is installed on the storage box 4 and is located on the side of the force storage plate 41 close to the front bracket 21. When the ejection rod 5 pops out, it drives the force storage plate 41 to collide with the buffer plate 44 to separate the middle counterweight head 311 from the ejection rod 5; the buffer plate 44 is provided with two pieces and is arranged on both sides of the ejection rod 5 and corresponds to the two sides of the force storage plate 41. The buffer plate 44 itself has a certain buffering performance, such as being partially made of a compressible rubber body, or being elastically installed on the storage box 4, which can fully utilize the kinetic energy of the ejection rod 5 and convert it into the kinetic energy of the middle counterweight head 311.

[0050] In addition, the free end of the ejection rod 5 is connected to an upwardly extending extension portion 53, and the central counterweight head 311 is mounted on the extension portion 53. The lower end surface of the storage box 4 is provided with a long groove 45 arranged along the length direction of the ejection rod 5, and the extension portion 53 is slidingly arranged in the long groove 45; at the same time, a protective cover (not shown in the figure) that covers the power storage mechanism should also be fixedly connected to the bottom of the storage box 4 to prevent external debris from reducing the conversion rate of the potential energy of the power storage mechanism into kinetic energy.

[0051] Therefore, with the help of the setting of the force storage plate 41, a larger number of force storage springs 43 can be installed on the ejection rod 5 to increase the stored energy. Once the lock hook 62 releases the lock on the lock cylinder 51, the compression deformation force of the multiple force storage springs 43 pushes the force storage plate 41 to drive the ejection rod 5 to pop out in the direction away from the front bracket 21, thereby realizing the conversion of the elastic potential energy of the force storage spring 43 into the kinetic energy of the ejection rod 5; when the ejection rod 5 moves to the force storage plate 41 and hits the buffer plate 44, the ejection rod 5 is limited, and the middle area counterweight head 311 is detached from the extension part 53 on the free end of the ejection rod 5 and continues to fly forward. At the same time, with the help of the elastic rod 313 connecting the two side area counterweight heads 312, the fire blanket 31 stored in the storage box 4 can be spread out in an expanded posture to the bottom of the collision vehicle chassis behind the rear bracket 22.

[0052] Alternatively, in other feasible embodiments, the ejection device may directly use an electromagnetic catapult, a pneumatic catapult, or the like, which is relatively expensive in the prior art, and it is only necessary to install the central counterweight head 311 to the output end of the corresponding catapult. Example 2

[0053] This embodiment of the present application discloses a flame-retardant anti-collision buffer vehicle for new energy vehicles. The difference from the first embodiment is that: The trigger components include: The impact sensor is used to detect whether a vehicle hits the rear bracket 22. It can be a pressure sensor installed on the rear bracket 22 or in the buffer pad 24, or a displacement sensor on the front bracket 21. Considering the implementation cost, a patch-type pressure sensor attached between the rear bracket 22 and the buffer pad 24 can be selected. At least three of them are arranged at intervals along the length direction of the rear bracket 22 and distributed in the left, middle and right areas of the rear bracket 22.

[0054] an electromagnet, which is controllably connected to the impact sensor and energized when the impact sensor detects a vehicle collision, and is mounted on the front bracket 21 and located between the two long rod sections of the folding rod 61; and The repulsive magnet is mounted on the inner wall of the folding rod 61 at the end away from the lock cylinder 51 , and its magnetic pole close to the electromagnet is the same as the magnetic pole on the opposite side of the electromagnet after power is applied.

[0055] Correspondingly, in another feasible embodiment, the steering assembly is also a combination of two groups of electromagnets and repulsive magnets. The two groups of lateral movable parts 9 are distributed on both sides of the hinged part of the storage box 4 and are installed on the front bracket 21, and the impact sensor located on the right side of the rear bracket 22 is connected to the control of the electromagnet located between the two folding rods 61, and is also connected to the control of the electromagnet located on the left side; the impact sensor located on the left side is connected to the control of the electromagnet located between the two folding rods 61, and is also connected to the control of the electromagnet located on the right side.

[0056] Thus, when a rear vehicle collides with the rear bracket 22 and is detected by any of the impact sensors, the electromagnet located between the two folding rods 61 is controlled to be energized and magnetized, driving the long rod sections of the two folding rods 61 away from each other, causing the lock hook 62 to release the lock on the shackle 52, and the ejection rod 5, under the action of the force storage mechanism, causes the fire blanket 31 to be ejected. Specifically, when a rear vehicle collides with one side of the rear bracket 22, for example, the left side of the rear bracket 22, and is detected by the impact sensor located on the left side, the electromagnet located on the right side of the front bracket 21 is energized and, through the magnetic repulsion between it and the repulsive magnet on the storage box 4, pushes the storage box 4 to deflect to the left on the front bracket 21. Only then does the electromagnet located between the two folding rods 61 on the front bracket 21 energize, releasing the lock on the lock cylinder 51, thereby achieving the effect of ejecting the fire blanket 31 to the left rear under the chassis of the vehicle that collided with the vehicle.

[0057] Therefore, it is also necessary to clarify that if a steering assembly is provided, the electromagnet located between the two folding rods 61 needs to be powered on later than the electromagnets located on both sides, so that the fire blanket 31 can be ejected after the storage box 4 completes its rotation.

[0058] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words "first", "second", "third" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" cover the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0059] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A flame-retardant anti-collision buffer vehicle for new energy vehicles, comprising a load-bearing truck and a buffer module, characterized in that: The buffer module includes: A front bracket is hingedly mounted on the rear of the load-bearing truck; a rear bracket connected to the front bracket; A metal elbow and a buffer pad are provided between the front bracket and the rear bracket; Fire blanket, stored at the lower end surface of the front bracket; A fire retardant bag filled with a fire retardant, with an injection port provided on the upper end surface, and a temperature control switch provided at the injection port. The temperature control switch is used to sense the ambient temperature and open the injection port when the set temperature is reached. A plurality of such fire retardant bags are arranged in an array on the fire blanket; and The ejection device is used to drive the fire blanket to deploy and lay flat under the chassis of the rear vehicle when a vehicle hits the rear bracket.

2. The flame retardant anti-collision buffer vehicle for new energy vehicles according to claim 1 is characterized in that: The free end of the fire blanket is fixedly connected to a central counterweight head and at least two side counterweight heads arranged on both sides of the central counterweight head. The side counterweight heads are flexibly connected to the central counterweight head. The ejection device is used to drive the central counterweight head to be ejected to an area more than 2.5m behind the rear support and within 12cm from the ground.

3. The flame retardant anti-collision buffer vehicle for new energy vehicles according to claim 2 is characterized in that: The ejection device comprises: a storage box, installed below the front bracket and having an opening at one end close to the rear bracket, wherein the fire blanket is folded in a wave shape in the storage box; An ejection rod is slidably disposed on the storage box, and the central counterweight head is movably connected to the free end of the ejection rod; A power storage mechanism for storing initial kinetic energy for the ejection rod; and The firing locking mechanism is used to lock the ejection rod that stores initial kinetic energy and unlock the ejection rod when the vehicle hits the rear bracket.

4. The flame-retardant anti-collision buffer vehicle for new energy vehicles according to claim 3 is characterized in that: The firing locking mechanism comprises: Two folding rods are provided opposite to each other, and the bending portions of the folding rods are hinged to the storage box, and the inner corners of the two folding rods are arranged to face each other; A locking hook is fixed to one end of the folding rod close to the ejection rod; The lock cylinder is fixedly connected to the end of the ejection rod close to the lock hook, and the inner wall of the lock cylinder is fixedly connected with a hook ring that matches the two lock hooks; when the two folding rods are separated from the end of the lock cylinder, the lock hooks are disconnected from the hook ring; A resetting elastic member is provided between the two folding rods and is used to drive the end of the folding rod provided with the lock hook to press against the inner wall of the lock cylinder; and The trigger assembly is used for driving the ends of the two folding rods away from the lock cylinder to move away from each other when the vehicle hits the rear bracket.

5. The flame-retardant anti-collision buffer vehicle for new energy vehicles according to claim 4 is characterized in that: The trigger component includes: The first cylinder body is located between the two folding rods and away from the end of the lock cylinder, and the first piston rods are provided at both axial ends thereof, and the first piston rods point to the inner wall of the adjacent folding rod; There are multiple triggering members distributed at least in the middle and both ends of the rear bracket in the length direction, and are used to transport fluid medium into the first cylinder to move the two first piston rods away from each other when a vehicle hits the triggering members.

6. The flame-retardant anti-collision buffer vehicle for new energy vehicles according to claim 4 is characterized in that: The trigger component includes: an impact sensor for detecting whether a vehicle impacts the rear support; an electromagnet, controllably connected to the impact sensor and energized when the impact sensor detects a vehicle impact; and The repulsive magnet is installed on the inner wall of the folding rod at one end away from the lock cylinder, and the magnetic pole of the repulsive magnet close to the electromagnet is the same as the magnetic pole of the opposite side of the electromagnet after power is supplied.

7. A flame retardant anti-collision buffer vehicle for new energy vehicles according to any one of claims 4 to 6, characterized in that: The storage box is hinged on the front bracket and its hinge axis is vertically arranged. The trigger locking mechanism also includes a steering component for driving the storage box to rotate toward one end of the rear frame when the rear vehicle offsets and hits the end.

8. The flame-retardant anti-collision buffer vehicle for new energy vehicles according to claim 7, characterized in that: The steering assembly comprises: There are two lateral movable parts and they are arranged on both sides of the lock cylinder. The movable parts of the lateral movable parts abut against the edges of both sides of one end of the storage box away from the rear bracket. The lateral movable parts are connected to the trigger assembly. When the trigger assembly detects that the vehicle hits the rear bracket, it drives the lateral movable parts to work simultaneously or with a delay; and when the trigger assembly detects that the vehicle has offset and hit one end of the rear frame, it controls the lateral movable parts at the diagonal end to work.

9. The flame-retardant anti-collision buffer vehicle for new energy vehicles according to claim 2, characterized in that: An elastic rod is connected between the middle area counterweight head and the side area counterweight heads.

10. The flame retardant anti-collision buffer vehicle for new energy vehicles according to claim 3, characterized in that: The power storage mechanism comprises: a force storage plate, fixedly connected to one end of the ejection rod close to the front bracket; A plurality of guide rods are provided, one end of which is fixed to one of the power storage plate and the storage box, and the other end of which slides through the other one of the power storage plate and the storage box; a force storage spring, sleeved on the guide rod and with its two ends respectively pressed against the force storage plate and the storage box; and The buffer plate is installed on the storage box and is located on the side of the force storage plate close to the front bracket. When the ejection rod pops out, it drives the force storage plate to collide with the buffer plate to separate the middle counterweight head from the ejection rod.

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