Self-rescue expansion equipment for automobile falling into water and use method of self-rescue expansion equipment

Abstract

The automobile drowning self-rescue expansion equipment is characterized in that the automobile drowning self-rescue expansion equipment comprises an automobile self-rescue chassis, a self-rescue rear door and a self-rescue seat, the automobile self-rescue chassis is fixedly installed at the bottom of an automobile body, and the self-rescue rear door is rotatably installed at the position of a rear door of an automobile; the self-rescue seat is fixedly mounted in the vehicle; by arranging the vehicle self-rescue chassis, the self-rescue rear vehicle door and the self-rescue seat, the problems that an existing device still lacks an emergency oxygen supply system, an escape channel is blocked, an overwater buoyancy system is lacked, the non-emergency escape time is short, and the psychological state and physiological needs of people are neglected are solved.

Description

Technical Field

[0001] The invention relates to the field of vehicle rescue, and in particular to a self-rescue expansion device for a vehicle falling into water and a use method thereof. Background Art

[0002] As the number of cars increases, the types and complexity of traffic accidents are also increasing. In particular, accidents in which vehicles accidentally fall into water while driving have become a safety hazard that cannot be ignored. According to statistics, water accidents have caused a large number of vehicle casualties worldwide, many of which are not directly caused by flooding, but because the occupants of the car failed to escape in time, resulting in hypoxia, drowning, etc. Therefore, how to quickly and effectively save yourself in the event of a vehicle falling into water has become a difficult problem that needs to be solved in the field of traffic safety in recent years.

[0003] Existing vehicle safety equipment, such as seat belts, airbags, window breakers, etc., can reduce accident injuries to a certain extent, but the protective effect of these devices is limited in the special situation when the vehicle falls into the water. Especially after the vehicle sinks into the water, factors such as closed doors, windows sealed by water pressure, and insufficient oxygen supply often make it impossible for people in the car to escape in time. In the existing technology, most of the equipment does not take into account the self-rescue needs of vehicles in water environments, lacks sufficient support and guarantee, especially in terms of oxygen supply and emergency escape, there are still many deficiencies.

[0004] 1. Lack of emergency oxygen supply system

[0005] Most vehicle safety systems are not designed to deal with oxygen supply issues in water accidents. After a vehicle falls into water, the windows are sealed by water pressure and the doors cannot be opened, so the people in the car often face the danger of being unable to breathe or insufficient oxygen supply. Most existing equipment lacks emergency oxygen supply function, resulting in extremely limited survival time for people in the car in water distress, increasing the risk of drowning and suffocation.

[0006] 2. Escape route is blocked

[0007] When a vehicle sinks into water, the windows and doors are often not easily opened due to water pressure, closed structure and other reasons. Although some vehicles on the market are equipped with window breakers, the effects of these devices are not always ideal and cannot help people effectively open the doors to escape.

[0008] 3. Lack of water buoyancy system

[0009] The buoyancy design in existing equipment is mostly to provide buffer protection when the vehicle body rolls over or collides. However, in the case of a vehicle falling into the water, the design of the buoyancy system is often insufficient. After the vehicle body sinks into the water, the traditional buoyancy airbags or buoyancy devices fail to effectively keep the vehicle afloat, making it difficult for the occupants to wait for rescue or to get enough time to escape. The lack of sustainability and effectiveness of the buoyancy system is a serious defect of existing equipment.

[0010] 4. Short emergency escape time

[0011] In many drowning accidents, the time for occupants to escape is very limited. Existing safety equipment can only provide short-term support and fails to take into account the difficulty of occupants' escape when the vehicle is completely submerged in water. There is not enough time to save themselves or wait for rescue, resulting in a large number of people being unable to escape. Existing equipment cannot provide long-term buoyancy support and cannot effectively extend the survival time of occupants, increasing the risk of casualties in accidents.

[0012] 5. Ignoring the psychological state and physiological needs of personnel

[0013] Most of the existing equipment focuses on mechanical design and functional improvement, ignoring the psychological state and physiological needs of the occupants in the accident of falling into the water. When trapped in the water, the occupants are often unable to think calmly or make correct escape decisions due to tension, fear, lack of oxygen, etc. The existing technology fails to take this into account and lacks designs that can alleviate the panic of the occupants and enhance their confidence in survival, and these factors are crucial to improving the survival rate.

[0014] Therefore, it is very necessary to invent a kind of automobile falling into water self-rescue expansion device and its use method. Summary of the invention

[0015] The purpose of the present invention is to provide a self-rescue expansion device for a car falling into water and a method of using the same, so as to solve the problems of the existing self-rescue equipment for a car falling into water, such as lack of emergency oxygen supply system, blocked escape passage, lack of water buoyancy system, short emergency escape time, and neglect of the psychological state and physiological needs of personnel.

[0016] To achieve the above-mentioned purpose, the present invention provides the following technical solution: it includes a vehicle self-rescue chassis, a self-rescue rear door and a self-rescue seat, and the vehicle self-rescue chassis is fixedly installed on the bottom of the vehicle body, and the self-rescue rear door is rotatably installed at the rear door of the vehicle; the self-rescue seat is fixedly installed inside the vehicle.

[0017] The vehicle self-rescue chassis includes a chassis bracket, front end protective armor, middle protective armor and rear end protective armor, and the chassis bracket is fixedly installed at the bottom of the vehicle body, the front end protective armor is fixedly installed at the front end of the bottom of the chassis bracket; the middle protective armor is fixedly installed at the middle position of the bottom of the chassis bracket, and the rear end protective armor is fixedly installed at the rear end of the bottom of the chassis bracket.

[0018] The intermediate protective armor includes an armored guard plate, an intermediate reinforcing edge, a supporting base, a rotating support arm, a suspended airbag box and a connecting metal sheet, and the armored guard plate is fixedly installed at the middle position of the bottom of the chassis bracket, and the intermediate reinforcing edge is fixedly installed on the outer edge of the armored guard plate; the supporting base is fixedly installed on both sides of the bottom of the armored guard plate, and the rotating support arm is rotatably installed on the inner side of the supporting base, and the suspended airbag box is rotatably installed on the inner side of the rotating support arm; the suspended airbag box is fixedly installed on the surface of the bottom of the armored guard plate through a connecting metal sheet.

[0019] The rear end protective armor includes a first guard plate, a connecting guard plate, a second guard plate, a rear end reinforcing edge, an auxiliary airbag and a tail-lift airbag, and the first guard plate, the connecting guard plate and the second guard plate are interconnected and fixedly installed at the rear end of the bottom of the chassis bracket; the rear end reinforcing edge is fixedly installed on the outer sides of the first guard plate, the connecting guard plate and the second guard plate; the auxiliary airbag is fixedly installed on the surface of the bottom of the first guard plate, and the tail-lift airbag is fixedly installed on the surface of the bottom of the second guard plate.

[0020] The self-rescue rear door includes a door body, a rear window glass, a rear door triangular window, a connecting seat, a supporting body and a blasting structure, and the door body is rotatably installed at the rear door of the vehicle, and the rear window glass is slidably installed inside the door body; the rear door triangular window is fixedly installed at the rear end of the door body, and the connecting seat is fixedly installed on the surface of the rear door triangular window, and the supporting body is fixedly installed on the connecting seat; the blasting structure is fixedly installed at the front end of the supporting body and extends to the outside of the rear window glass.

[0021] The self-rescue seat includes a seat body, an anti-accidental safety belt buckle and an oxygen chamber, and the seat body is fixedly installed inside the vehicle, and the anti-accidental safety belt buckle is fixedly installed on the outside of the bottom of the seat body, and the oxygen chamber is fixedly installed on the outside of the seat body cushion.

[0022] The anti-accidental safety belt buckle includes a connecting plate, an adjustment bracket, a disassembly bracket, a quick-release bolt and a socket, and the connecting plate is fixedly installed on the outer side of the bottom of the seat body, and the adjustment bracket is installed on the outer side of the connecting plate; the disassembly bracket is installed on the top of the adjustment bracket through the quick-release bolt, and the socket is fixedly installed on the top of the disassembly bracket.

[0023] The oxygen chamber includes a compressed oxygen cylinder, a protective outer pad, an air duct and an oxygen inhalation bite, and the compressed oxygen cylinder is fixedly installed on the outside of the seat body cushion, and the protective outer pad is fixedly installed on the outside of the compressed oxygen cylinder; the air duct is fixedly installed at the rear end of the compressed oxygen cylinder, and the oxygen inhalation bite is fixedly installed at one end of the air duct.

[0024] The armored guard plate inside the middle protective armor uses a metal plate that matches the bottom plate of the car, and an airbag is integrated inside the suspended airbag box. The airbag inside the suspended airbag box can expand rapidly by burning the propellant inside it to generate a nitrogen flow, and the airbag inside the suspended airbag box is formed to form an airbag prototype; when the airbag inside the suspended airbag box is inflated, the connecting metal sheet will be torn, so that the suspended airbag box will be separated from the armored guard plate, and folded outward through the support base and the rotating support arm, and finally stay at the oblique lower part of both sides of the vehicle; the suspended airbag box can be manually controlled to start working through the emergency button inside the vehicle, and has the following functions: ① Expand bottom protection: The middle protective armor can effectively prevent the impact of external objects on the bottom of the vehicle through the design of components such as the armored guard plate and the middle reinforcement edge, especially in emergency situations such as collision or rollover, to protect the vehicle chassis from damage. ② Support the suspended airbag: The middle protective armor provides a fixed position for the suspended airbag box to ensure that the airbag box can work normally in an emergency. The airbag inside the suspended airbag box can inflate to help the vehicle float and improve the buoyancy and stability of the vehicle, especially after falling into the water, to ensure that the vehicle will not sink rapidly; ③ Airbag expansion support: When the airbag inside the suspended airbag box inflates, the middle protective armor ensures that the armor guard plate can be smoothly detached when the airbag inflates through the design of connecting metal sheets, and folds outward through the support base and rotating support arm to further provide support and protection, help the vehicle maintain balance and avoid tilting of the vehicle body; ④ Enhance structural stability: Due to the fixed design of the middle protective armor, the overall stability of the vehicle is enhanced, so that it can effectively prevent the vehicle body from disintegration or serious damage under various extreme conditions, such as rapid flipping or large-scale movement.

[0025] The auxiliary airbag and the tail-lift airbag inside the rear-end protective armor use two groups of airbags, and the size of the tail-lift airbag is larger than the auxiliary airbag; the tail-lift airbag can make the rear of the car float to the water surface, and the head of the vehicle will sink due to the weight of mechanical equipment such as the engine; the tail-lift airbag can make the vehicle form a state with the front of the car down and the parking space up in the water; the auxiliary airbag and the tail-lift airbag can be manually controlled to start working through the emergency button inside the vehicle, and have the following functions: ① Provide buoyancy support: The auxiliary airbag and the tail-lift airbag inside the rear-end protective armor help the rear of the vehicle float to the water surface through the expansion of the airbags, ensuring that the rear of the vehicle can provide additional buoyancy. This design is especially important after the vehicle falls into the water, and can adjust the buoyancy balance of the vehicle body to keep the front of the vehicle down and the rear of the vehicle up, that is, the rear of the vehicle floats and the front of the vehicle sinks, thereby effectively avoiding The vehicle sinks completely, providing a longer escape time; ② Improve the possibility of escape: The design of the rear-end protective armor not only provides buoyancy support, but also ensures that the rear-end space of the vehicle can float to the surface, so that the rear end of the vehicle can keep floating in the water. This design makes it more likely that the rear end of the vehicle is exposed above the water, thereby providing a larger escape space for the occupants and increasing the possibility of successful escape after falling into the water. The occupants can use this gap to more easily escape from the predicament and increase the chance of survival; ③ Enhance the stability of the vehicle body: After the vehicle falls into the water, the tail airbag provides more buoyancy to make the tail of the vehicle rise, so that the head of the vehicle naturally sinks due to the weight of the engine and other mechanical equipment, forming a specific tilt angle. This design makes the vehicle easier to be found by rescuers and provides a better rescue environment.

[0026] The rear door triangular window inside the self-rescue rear door adopts a glass plate, and the shape of the rear door triangular window is exactly the same as the glass that comes with the car, and the rear door triangular window can replace the glass that comes with the vehicle; the blasting structure adopts a steel metal tube, which is filled with compressed hydrogen, and a metal ball is filled at the top, and an ignition device is arranged at the bottom of the blasting structure. After the hydrogen inside the blasting structure is ignited, it can push the metal ball to hit the rear window glass at high speed; the amount of fuel in the blasting structure is strictly controlled so that the metal ball can only smash the rear window glass but cannot penetrate the rear window glass; the ignition device inside the blasting structure can be manually controlled to start working through the emergency button inside the vehicle, and has the following functions: ① Provide an escape route: Self-rescue rear door It can be opened quickly after the vehicle falls into the water, providing a safe escape route. Since the door glass can be broken and opened, the occupants can quickly escape from the vehicle through the opened door, thereby increasing the success rate of escape; ② The breaking function of the rear window glass: The blasting structure inside the rear door after self-rescue includes a metal tube filled with compressed hydrogen, which can be activated by an ignition device in an emergency, pushing a metal ball to hit the rear window glass and quickly breaking the window. This function is particularly critical because when the vehicle falls into the water, the window may be tightly sealed by the external water pressure, and the blasting structure can quickly break the glass to help the occupants escape quickly from the car; ③ Ensure the airtightness of the car: Before the self-rescue function is activated, the rear door after self-rescue can seal the car environment to prevent water from flowing into the car. This not only provides a living space for the occupants, but also prevents life-threatening dangers such as suffocation caused by water flowing into the car, giving the occupants more time for self-rescue.

[0027] The quick-release bolt inside the anti-accident seat belt buckle uses two metal bolts, and the quick-release bolt can connect the disassembly bracket and the quick-release bolt together through threads. The quick-release bolt can separate the disassembly bracket and the quick-release bolt by rotation, so that the seat belt can be loosened as a whole. It has the following functions: 1. Prevent accidental locking: The main function of the anti-accident seat belt buckle is to prevent the seat belt from accidentally getting stuck or unable to be loosened when the vehicle collides or falls into water. It ensures that the seat belt can be quickly unfastened in an emergency through a specific design and structure, avoiding the occupants from being unable to escape due to the inability to remove the seat belt during emergency evacuation; 2. Ensure quick release: When the vehicle falls In an emergency situation after flooding, occupants may be trapped by water pressure or restrained by seat belts, making it impossible to leave the vehicle in time. The anti-accident seat belt buckle adopts a quick-release bolt structure, which allows the seat belt system to be quickly loosened when needed, ensuring that occupants can quickly release the seat belts and escape; ③ Adjustable and replaceable: The design of the anti-accident seat belt buckle also has a certain degree of adjustability, which can be flexibly adjusted according to different occupant body shapes and interior space, ensuring that even in the event of an accident, occupants can easily loosen the seat belts to escape. In addition, the components of the anti-accident seat belt buckle can also be replaced according to usage to ensure the long-term effectiveness of the system.

[0028] The compressed oxygen cylinders inside the oxygen chamber use two groups of metal cylinders filled with oxygen, and the compressed oxygen cylinders form an outward-tilted seat cushion through a protective outer pad. The compressed oxygen cylinders and the protective outer pad contact the outer side of the thigh when a person sits on it and are not subject to the main pressure of the human body; the oxygen inhalation bite mouth enables a person to hold it in his mouth and complete the breathing action, which has the following functions: ① Providing emergency oxygen supply: The core function of the oxygen chamber is to provide emergency oxygen supply. After a car falls into water, the occupants may not be able to escape quickly due to the flooding, resulting in thin air in the car or being blocked by water. The compressed oxygen cylinders in the oxygen tank can provide sufficient oxygen for the occupants, ensuring that they can maintain normal breathing and prolong survival time when preparing to escape or waiting for rescue; ② Reduce emergency stress: The design of the oxygen tank is to provide a relatively safe "breathing space" for the occupants in the car, especially in the event of a fall into the water. The oxygen supply system can ensure that the occupants remain calm in the water, reduce tension, and facilitate rational self-rescue or waiting for rescue; ③ Facilitate quick operation: In an emergency, the occupants can quickly use the oxygen inhalation bite of the oxygen tank to perform breathing operations. This design ensures that oxygen can be quickly transferred to the occupants and is not affected by the external environment.

[0029] This device is designed to help people save themselves, escape and improve their chances of survival as soon as possible when a vehicle falls into water. The following is a detailed method of use, which is divided into several key stages after the accident: 1. Accident and vehicle falling into water: When the vehicle falls into water due to an accident, the device will automatically start or the owner will manually start the emergency self-rescue function; 2. Escape preparation: After the vehicle falls into water, the people in the car can directly press the emergency button, and all the self-rescue equipment in the car will be put into operation; 3. Oxygen supply: During the self-rescue process, if the people in the car are trapped and the air quality deteriorates, the compressed oxygen cylinder in the oxygen tank will provide emergency oxygen to prolong the survival time; 4. Self-rescue and escape: After the lives of the people in the car are guaranteed by oxygen, the people are ready to escape. After the rear window glass is opened by the blasting structure, the people can quickly escape through the rear door or window; 5. Waiting for rescue: After the people successfully escape from the car, the airbag can make the car body float on the water for a long time, giving the occupants more time to wait for rescue.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The setting of the intermediate protective armor of the present invention has the following functions: 1. Expanding bottom protection: The intermediate protective armor can effectively prevent the impact of external objects on the bottom of the vehicle through the design of components such as armored guard plates and intermediate reinforcement edges, especially in emergency situations such as collisions or rollovers, to protect the vehicle chassis from damage; 2. Supporting the suspended airbag: The intermediate protective armor provides a fixed position for the suspended airbag box to ensure that the airbag box can work normally in an emergency. The airbag inside the suspended airbag box can be inflated to help the vehicle float, improve the buoyancy and stability of the vehicle, especially after falling into the water, to ensure that the vehicle will not sink rapidly; 3. Airbag expansion support:

[0032] When the airbag inside the suspended airbag box inflates, the middle protective armor is designed with connected metal sheets to ensure that the armor guard plate can be smoothly detached when the airbag inflates, and it folds outward through the support base and the rotating support arm to further provide support and protection, helping the vehicle maintain balance and avoid tilting the body; ④ Enhanced structural stability: Due to the fixed design of the middle protective armor, the overall stability of the vehicle is enhanced, so that it can effectively prevent the body from disintegrating or serious damage under various extreme conditions, such as rapid flipping or large-scale movement.

[0033] 2. The rear-end protective armor of the present invention has the following functions: 1. Providing buoyancy support: The auxiliary airbag and the tail-lifting airbag in the rear-end protective armor expand through the airbag to help the rear of the vehicle float to the water surface, ensuring that the rear of the vehicle can provide additional buoyancy. This design is particularly important after the vehicle falls into the water. It can adjust the buoyancy balance of the vehicle body so that the front of the vehicle remains facing down and the rear of the vehicle faces up, that is, the rear of the vehicle floats and the front of the vehicle sinks, thereby effectively avoiding the complete sinking of the vehicle and providing a longer escape time; 2. Improving the possibility of escape: The design of the rear-end protective armor not only provides buoyancy support, but also ensures that the rear end space of the vehicle can float to the surface, allowing the vehicle to The design keeps the rear end of the vehicle floating in the water. The rear end of the vehicle is more likely to be exposed above the water surface, thereby providing a larger escape space for the occupants and improving the possibility of successful escape after falling into the water. The occupants can use this gap to escape from difficulties more easily, increasing the chance of survival; ③ Enhance the stability of the vehicle: After the vehicle falls into the water, the tail airbag provides more buoyancy to make the rear end of the vehicle rise, so that the head of the vehicle naturally sinks due to the weight of the engine and other mechanical equipment, forming a specific tilt angle. This design makes the vehicle easier to be found by rescuers and provides a better rescue environment.

[0034] 3. The setting of the self-rescue rear door of the present invention has the following functions: 1. Providing an escape passage: the self-rescue rear door can be opened quickly after the vehicle falls into the water, providing a safe escape passage. Since the door glass can be broken and opened, the occupants can quickly escape from the vehicle through the opened door, thereby improving the success rate of escape; 2. The breaking function of the rear window glass: the blasting structure inside the self-rescue rear door includes a metal tube filled with compressed hydrogen, which can be activated by an ignition device in an emergency, pushing a metal ball to hit the rear window glass and quickly breaking the window. This function is particularly critical because when the vehicle falls into the water, the window may be tightly sealed by the external water pressure, and the blasting structure can quickly break the glass to help the occupants quickly escape from the vehicle; 3. Ensure the airtightness of the vehicle: before the self-rescue function is not activated, the self-rescue rear door can seal the vehicle environment to prevent water from flowing into the vehicle. This not only provides a living space for the occupants, but also prevents life-threatening dangers such as suffocation caused by water flowing into the vehicle, and gives the occupants more time for self-rescue.

[0035] 4. The setting of the anti-accidental seat belt buckle of the present invention has the following functions: 1. Prevent accidental locking: The main function of the anti-accidental seat belt buckle is to prevent the seat belt from being accidentally stuck or unable to be loosened when the vehicle collides or falls into water. It ensures that the seat belt can be quickly unfastened in an emergency through a specific design and structure, avoiding the occupant from being unable to escape due to the inability to remove the seat belt during emergency evacuation; 2. Ensure quick release: In an emergency after the vehicle falls into water, the occupant may be trapped by water pressure or restrained by the seat belt, resulting in the inability to leave the vehicle in time. The anti-accidental seat belt buckle adopts a quick-release bolt structure, so that the seat belt system can be quickly loosened when needed, ensuring that the occupant can quickly release the seat belt and escape; 3. Adjustable and replaceable: The design of the anti-accidental seat belt buckle also has a certain degree of adjustability, which can be flexibly adjusted according to different occupant body shapes and vehicle interior space, ensuring that even in the event of an accident, the occupant can easily loosen the seat belt to escape. In addition, the components of the anti-accidental seat belt buckle can also be replaced according to usage to ensure the long-term effectiveness of the system.

[0036] 5. The setting of the oxygen chamber of the present invention has the following functions: 1. Providing emergency oxygen supply: The core function of the oxygen chamber is to provide emergency oxygen supply. After the car falls into the water, the car may be flooded and unable to escape quickly, resulting in thin air or water blocking the car. The compressed oxygen cylinder in the oxygen chamber can provide sufficient oxygen for the occupants to ensure that they can maintain normal breathing and prolong survival time when they are preparing to escape or waiting for rescue; 2. Reducing emergency pressure: The design of the oxygen chamber is to provide a relatively safe "breathing space" for the occupants in the car, especially in the event of a fall into the water accident. The oxygen supply system can ensure that the occupants remain calm in the water, reduce tension, and facilitate rational self-rescue or waiting for rescue; 3. Facilitate quick operation: In an emergency, the occupants can quickly use the oxygen inhalation bite of the oxygen chamber to perform breathing operations. This design ensures that oxygen can be quickly transferred to the occupants and is not affected by the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of the expansion device of the present invention.

[0038] Figure 2 It is a structural schematic diagram of the vehicle self-rescue chassis of the present invention.

[0039] Figure 3 It is a schematic diagram of the vehicle self-rescue chassis from a second viewing angle of the present invention.

[0040] Figure 4 It is a schematic structural diagram of the intermediate protective armor of the present invention.

[0041] Figure 5 It is a structural schematic diagram of the rear end protective armor of the present invention.

[0042] Figure 6 It is a structural schematic diagram of the self-rescue rear door of the present invention.

[0043] Figure 7 It is a structural schematic diagram of the self-rescue seat of the present invention.

[0044] In the figure:

[0045] Vehicle self-rescue chassis 1, self-rescue rear door 2, self-rescue seat 3, chassis bracket 11, front end protective armor 12, middle protective armor 13, rear end protective armor 14, armor guard plate 131, middle reinforcement edge 132, support base 133, rotating support arm 134, suspension airbag box 135, connecting metal sheet 136, first guard plate 141, connecting guard plate 142, second guard plate 143, rear end reinforcement edge 144, auxiliary airbag 1 45, tail-lift airbag 146, door body 21, rear window glass 22, rear door triangular window 23, connecting seat 24, supporting body 25, blasting structure 26, seat body 31, anti-accidental safety belt buckle 32, oxygen chamber 33, connecting plate 321, adjustment bracket 322, disassembly bracket 323, quick-release bolt 324, socket 325, compressed oxygen cylinder 331, protective outer pad 332, air duct 333 and oxygen inhalation bite 334. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] As attached Figure 1-7 As shown:

[0048] This device is designed to help people save themselves and escape as soon as possible and improve their chances of survival when a vehicle falls into water. The following is a detailed method of use, divided into several key stages after the accident:

[0049] Phase 1: Accident and vehicle falls into water

[0050] When a vehicle accidentally falls into water, whether due to a traffic accident, natural disaster or other factors, the equipment will respond immediately and automatically or manually start the emergency self-rescue function. The airbag system in the vehicle's self-rescue chassis 1 and the rear-end protective armor 14 will quickly inflate to ensure the buoyancy of the vehicle body and ensure that the rear of the vehicle is as exposed as possible above the water surface. This process provides the first step for the people in the car to escape, while also ensuring the stability of the vehicle body, preventing the vehicle from sinking quickly, and increasing the time for people to escape.

[0051] Phase 2: Escape Preparation

[0052] When the vehicle is completely submerged in water or the water level begins to rise, the occupants should immediately press the emergency button to activate all self-rescue equipment. At this time, the oxygen supply system in the self-rescue seat 3 starts to work, and the compressed oxygen cylinder 331 in the oxygen chamber 33 provides emergency oxygen to ensure that the occupants can maintain breathing in the harsh underwater environment. At the same time, the rear window glass 22 is blown open by the blasting structure 26, so that the occupants can quickly find an escape route.

[0053] Phase 3: Oxygen Supply

[0054] If the people in the car are trapped in an emergency and there is insufficient oxygen underwater, the compressed oxygen cylinder 331 in the oxygen chamber 33 will automatically or manually release oxygen and transport it to the oxygen inhalation bite 334 through the air duct 333, ensuring that the trapped people can continue to breathe and prolong their survival time. The design of the oxygen chamber not only ensures the survival space for the people in the car, but also helps maintain psychological stability, creating favorable conditions for subsequent escape.

[0055] Phase 4: Self-rescue and escape

[0056] With oxygen support, the occupants can remain calm and prepare to escape. The rear window glass 22 is quickly broken by the blasting structure 26, and the occupants can quickly escape through the opening. If conditions permit, the occupants can also escape through the rear door 2 by self-rescue. In this process, the design of the anti-accidental seat belt buckle 32 allows the seat belt to be released quickly, avoiding the occupants from being restrained by the seat belt, and ensuring the possibility of quickly escaping from the vehicle. All these designs ensure that the escape route is unobstructed and minimize time delays.

[0057] Phase 5: Waiting for rescue

[0058] After the escape is successful, the vehicle's buoyancy system will continue to work to ensure that the vehicle remains afloat. Through the structural design of the middle protective armor 13 and the rear protective armor 14, the vehicle can float on the water for a long time, ensuring that the people in the vehicle have enough time to wait for rescue. The buoyancy system and airbag device can help the vehicle remain stable on the water and avoid sinking, buying more time for rescuers. At this time, the people can use the buoyancy system to stay safe and wait for outside rescue.

[0059] Through the self-rescue mechanism in the above five key stages, the device can effectively increase the chance of survival when the vehicle falls into the water, providing more opportunities for self-rescue and escape. Each link has been carefully designed to ensure that the device can respond quickly in an emergency and buy precious escape time for the owner and passengers.

[0060] A self-rescue expansion device for a car falling into water:

[0061] It includes a vehicle self-rescue chassis 1, a self-rescue rear door 2 and a self-rescue seat 3, wherein the vehicle self-rescue chassis 1 is fixedly installed at the bottom of the vehicle body, and the self-rescue rear door 2 is rotatably installed at the rear door of the vehicle; the self-rescue seat 3 is fixedly installed inside the vehicle.

[0062] The vehicle self-rescue chassis 1 includes a chassis bracket 11, a front end protective armor 12, a middle protective armor 13 and a rear end protective armor 14, and the chassis bracket 11 is fixedly installed at the bottom of the vehicle body, and the front end protective armor 12 is fixedly installed at the front end of the bottom of the chassis bracket 11; the middle protective armor 13 is fixedly installed at the middle position of the bottom of the chassis bracket 11, and the rear end protective armor 14 is fixedly installed at the rear end of the bottom of the chassis bracket 11.

[0063] The intermediate protective armor 13 includes an armor plate 131, an intermediate reinforcing edge 132, a support base 133, a rotating support arm 134, a suspended airbag box 135 and a connecting metal sheet 136, and the armor plate 131 is fixedly installed in the middle position of the bottom of the chassis bracket 11, and the intermediate reinforcing edge 132 is fixedly installed on the outer edge of the armor plate 131; the support base 133 is fixedly installed on both sides of the bottom of the armor plate 131, and the rotating support arm 134 is rotatably installed on the inner side of the supporting base 133, and the suspended airbag box 135 is rotatably installed on the inner side of the rotating support arm 134; the suspended airbag box 135 is fixedly installed on the surface of the bottom of the armor plate 131 through the connecting metal sheet 136.

[0064] The rear end protection armor 14 includes a first guard plate 141, a connecting guard plate 142, a second guard plate 143, a rear end reinforcement edge 144, an auxiliary airbag 145 and a tail-lift airbag 146, and the first guard plate 141, the connecting guard plate 142 and the second guard plate 143 are interconnected and fixedly installed at the rear end of the bottom of the chassis bracket 11; the rear end reinforcement edge 144 is fixedly installed on the outer sides of the first guard plate 141, the connecting guard plate 142 and the second guard plate 143; the auxiliary airbag 145 is fixedly installed on the surface of the bottom of the first guard plate 141, and the tail-lift airbag 146 is fixedly installed on the surface of the bottom of the second guard plate 143.

[0065] The self-rescue rear door 2 includes a door body 21, a rear window glass 22, a rear door triangular window 23, a connecting seat 24, a support body 25 and a blasting structure 26, and the door body 21 is rotatably installed at the rear door of the vehicle, and the rear window glass 22 is slidably installed inside the door body 21; the rear door triangular window 23 is fixedly installed at the rear end of the door body 21, and the connecting seat 24 is fixedly installed on the surface of the rear door triangular window 23, and the support body 25 is fixedly installed on the connecting seat 24; the blasting structure 26 is fixedly installed at the front end of the support body 25 and extends to the outside of the rear window glass 22.

[0066] The self-rescue seat 3 includes a seat body 31, an anti-accidental safety belt buckle 32 and an oxygen chamber 33. The seat body 31 is fixedly installed inside the vehicle, and the anti-accidental safety belt buckle 32 is fixedly installed on the outside of the bottom of the seat body 31. The oxygen chamber 33 is fixedly installed on the outside of the seat cushion of the seat body 31.

[0067] The anti-accidental safety belt buckle 32 includes a connecting plate 321, an adjustment bracket 322, a disassembly bracket 323, a quick-release bolt 324 and a socket 325, and the connecting plate 321 is fixedly installed on the outer side of the bottom of the seat body 31, and the adjustment bracket 322 is installed on the outer side of the connecting plate 321; the disassembly bracket 323 is installed on the top of the adjustment bracket 322 through the quick-release bolt 324, and the socket 325 is fixedly installed on the top of the disassembly bracket 323.

[0068] The oxygen chamber 33 includes a compressed oxygen cylinder 331, a protective outer pad 332, an air duct 333 and an oxygen inhalation bite 334, and the compressed oxygen cylinder 331 is fixedly installed on the outside of the seat cushion of the seat body 31, and the protective outer pad 332 is fixedly installed on the outside of the compressed oxygen cylinder 331; the air duct 333 is fixedly installed at the rear end of the compressed oxygen cylinder 331, and the oxygen inhalation bite 334 is fixedly installed at one end of the air duct 333.

[0069] The armored guard plate 131 inside the middle protective armor 13 is made of a metal plate that matches the bottom plate of the car, and an airbag is integrated inside the suspended airbag box 135. The airbag inside the suspended airbag box 135 can quickly expand by generating a nitrogen flow through the combustion of the propellant inside it, and the airbag inside the suspended airbag box 135 forms an airbag prototype after being formed; when the airbag inside the suspended airbag box 135 swells, the connecting metal sheet 136 will be torn, so that the suspended airbag box 135 is separated from the armored guard plate 131, and folded outward through the support base 133 and the rotating support arm 134, and finally stays obliquely below both sides of the vehicle; the suspended airbag box 135 can be manually controlled to start working through the emergency button inside the vehicle.

[0070] The auxiliary airbag 145 and the tail-lift airbag 146 inside the rear-end protective armor 14 use two groups of airbags, and the size of the tail-lift airbag 146 is larger than that of the auxiliary airbag 145; the tail-lift airbag 146 can make the rear of the car float to the water surface, and the head of the vehicle will sink due to the weight of mechanical equipment such as the engine; the tail-lift airbag 146 can make the vehicle form a state with the front of the car facing down and the parking space facing up in the water; the auxiliary airbag 145 and the tail-lift airbag 146 can be manually controlled to start working through the emergency button inside the vehicle.

[0071] The rear door triangular window 23 inside the self-rescue rear door 2 adopts a glass plate, and the shape of the rear door triangular window 23 is exactly the same as the glass that comes with the car. The rear door triangular window 23 can replace the glass that comes with the vehicle; the blasting structure 26 adopts a steel metal tube, which is filled with compressed hydrogen, and a metal ball is filled on the top, and an ignition device is provided at the bottom of the blasting structure 26. After the hydrogen inside the blasting structure 26 is ignited, it can push the metal ball to hit the rear window glass 22 at high speed; the amount of fuel in the blasting structure 26 is strictly controlled so that the metal ball can only smash the rear window glass 22 but cannot penetrate the rear window glass 22; the ignition device inside the blasting structure 26 can be manually controlled to start working through the emergency button inside the vehicle.

[0072] The quick release bolt 324 inside the anti-accidental safety belt buckle 32 is made of two metal bolts, and the quick release bolt 324 can connect the disassembly bracket 323 and the quick release bolt 324 together through threads. The quick release bolt 324 can separate the disassembly bracket 323 and the quick release bolt 324 by rotation, so that the safety belt is loosened as a whole.

[0073] The compressed oxygen cylinder 331 inside the oxygen chamber 33 adopts two groups of metal cylinders filled with oxygen, and the compressed oxygen cylinder 331 forms an outward-tilted seat cushion through the protective outer pad 332. The compressed oxygen cylinder 331 and the protective outer pad 332 contact the outer side of the thigh when a person sits on it and are not subjected to the main pressure of the human body; the oxygen inhalation bite 334 enables a person to hold it in his mouth to complete the breathing action.

[0074] Compared with the existing technology, this equipment has many advantages, especially in the self-rescue of cars falling into water, which fully considers the possibility of survival and feasibility of self-rescue in emergency situations. The specific advantages are as follows:

[0075] 1. Multi-level protection mechanism

[0076] This equipment provides comprehensive physical protection for the vehicle body by designing multiple protective armors. Especially in complex water conditions, it can effectively slow down the sinking speed of the vehicle body and provide personnel with sufficient escape time.

[0077] Compared with the prior art, common protection designs are usually concentrated on the outside of the vehicle or a single area, while the present device combines the front, middle and rear protective armors, which can comprehensively ensure the safety of different areas of the vehicle. In particular, the rear end protective armor 14 increases the buoyancy of the vehicle through the lift airbag 146 and the auxiliary airbag 145, allowing the rear of the vehicle to emerge from the water, thereby increasing the chances of escape for personnel.

[0078] 2. Innovative airbag system

[0079] The suspended airbag box 135 design adopted by this equipment is more efficient than traditional airbags. The airbag inside the airbag box can expand rapidly through the propellant, providing strong buoyancy, quickly changing the posture of the vehicle, helping the vehicle to maintain a floating state with the front of the vehicle facing down and the rear of the vehicle facing up, making it easier for people to escape through the windows or doors.

[0080] Compared with the airbag system in the prior art, the traditional airbag can usually only work in the event of collision or tilt, while the suspension airbag of the present device can not only be activated in the water, but also provide additional buoyancy support through manual or automatic control in an emergency.

[0081] 3. Emergency oxygen supply system

[0082] The oxygen chamber 33 carried by the device provides emergency oxygen supply. After a vehicle falls into water, it can guarantee the breathing needs of personnel in distress in the water and prolong their survival time. This design has obvious advantages over the existing technology, because many existing devices often ignore the problem of hypoxia caused by staying in water for too long, while the oxygen chamber of the device can provide continuous oxygen to personnel trapped in the vehicle to avoid suffocation.

[0083] The design of the compressed oxygen cylinder 331 is not only convenient and compact, but also has an efficient oxygen release function, which can quickly provide oxygen in the water to ensure that people have enough time to wait for rescue.

[0084] 4. Self-rescue rear door design

[0085] The blasting structure 26 of the self-rescue rear door 2 can quickly and effectively break the car window or rear door glass to help people escape quickly. Compared with the existing technology, many existing car window breaking devices do not have the functions of quick start and efficient breaking. The device uses the hydrogen of the blasting structure 26 to drive the metal ball to shatter the rear window glass 22, ensuring that people can break through the car window and escape in a short time.

[0086] In addition, the rear door triangular window 23 of the device is designed with the needs of car owners in mind and can be replaced with conventional glass, making the escape route more convenient and safer.

[0087] 5. Adjustable anti-accident seat belt system

[0088] The anti-accidental seat belt buckle 32 of the device is designed with a quick-release bolt 324 and a disassembly bracket 323, which can quickly unlock the seat belt in an emergency, ensuring that the occupant can quickly leave the seat, thereby increasing the escape speed.

[0089] Compared with the traditional seat belt system in the prior art, the quick disassembly function of the device is more efficient in emergency situations and can greatly reduce the risk of the seat belt hindering the escape of personnel.

[0090] 6. Emergency airbag control system

[0091] The auxiliary airbag 145 and the tail airbag 146 in the rear end protective armor 14 can be inflated by the emergency button in the vehicle to quickly change the floating state of the vehicle. Through this design, the vehicle can maintain a stable floating state on the water, allowing people in the vehicle to wait for rescue in a safe area.

[0092] Compared with the common airbag design in the prior art, this device ensures timely response in harsh water environments and increases the stability of the vehicle in the water.

[0093] 7. Efficient self-rescue seat design

[0094] The oxygen chamber 33 and the anti-accident safety belt buckle 32 of the self-rescue seat 3 are used together to ensure that the occupants have sufficient oxygen support in the event of an accident, and can ensure that the safety belt is quickly loosened in an emergency, thereby improving the efficiency of personnel escape.

[0095] Traditional seat systems usually cannot provide the oxygen replenishment or quick release function required for emergency escape, while the design of this device perfectly combines safety and emergency self-rescue functions, significantly improving the chances of survival of personnel in underwater predicaments.

[0096] 8. All-round self-rescue function

[0097] This equipment combines multiple self-rescue designs such as oxygen supply, airbag buoyancy, seat belt detachment mechanism, door breaking device, etc., providing a complete set of systematic self-rescue solutions. This multi-level protection and self-rescue design can maximize the safety of the passengers' lives and provide more escape possibilities in emergency situations.

[0098] Compared with the single function in the existing technology, this equipment effectively reduces the difficulty of personnel escape in emergency situations through its all-round design, and greatly improves the overall survival rate.

[0099] Summarize:

[0100] Compared with existing technologies, this equipment provides a more efficient, comprehensive and personalized self-rescue system. By integrating multiple innovative functions, it greatly enhances the possibility of survival when a car falls into water. Its comprehensive performance, compact design and multiple safety guarantees have greatly enhanced its advantages over existing technologies, making its self-rescue capabilities in emergency situations more prominent.

[0101] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-rescue expansion device for a car falling into water, characterized by: The invention comprises a vehicle self-rescue chassis (1), a self-rescue rear door (2) and a self-rescue seat (3), wherein the vehicle self-rescue chassis (1) is fixedly mounted on the bottom of the vehicle body, the self-rescue rear door (2) is rotatably mounted on the rear door of the vehicle; and the self-rescue seat (3) is fixedly mounted inside the vehicle.

2. A vehicle falling into water self-rescue expansion device as claimed in claim 1, characterized in that: The vehicle self-rescue chassis (1) comprises a chassis bracket (11), a front end protective armor (12), a middle protective armor (13) and a rear end protective armor (14), wherein the chassis bracket (11) is fixedly mounted on the bottom of the vehicle body, the front end protective armor (12) is fixedly mounted on the front end of the bottom of the chassis bracket (11); the middle protective armor (13) is fixedly mounted on the middle position of the bottom of the chassis bracket (11), and the rear end protective armor (14) is fixedly mounted on the rear end of the bottom of the chassis bracket (11); The intermediate protective armor (13) comprises an armor plate (131), an intermediate reinforcement edge (132), a support base (133), a rotating support arm (134), a suspension airbag box (135) and a connecting metal sheet (136), wherein the armor plate (131) is fixedly mounted at the middle position of the bottom of the chassis bracket (11), and the intermediate reinforcement edge (132) is fixedly mounted on the outer edge of the armor plate (131); the support base (133) is fixedly mounted on both sides of the bottom of the armor plate (131), and the rotating support arm (134) is fixedly mounted on the outer edge of the armor plate (131). The support arm (134) is rotatably mounted on the inner side of the support base (133); the suspension airbag box (135) is rotatably mounted on the inner side of the rotation support arm (134); the suspension airbag box (135) is fixedly mounted on the surface of the bottom of the armor guard plate (131) through a connecting metal sheet (136); the rear end protection armor (14) includes a first guard plate (141), a connecting guard plate (142), a second guard plate (143), a rear end reinforcement edge (144), an auxiliary airbag (145) and a tail lift airbag (146). 6), and the first guard plate (141), the connecting guard plate (142) and the second guard plate (143) are connected to each other and fixedly mounted on the rear end of the bottom of the chassis bracket (11); the rear end reinforcement edge (144) is fixedly mounted on the first guard plate (141), the connecting guard plate (142) and the outer side of the second guard plate (143); the auxiliary airbag (145) is fixedly mounted on the surface of the bottom of the first guard plate (141), and the tail-lift airbag (146) is fixedly mounted on the surface of the bottom of the second guard plate (143).

3. The vehicle falling into water self-rescue expansion device as claimed in claim 1, characterized in that: The self-rescue rear door (2) comprises a door body (21), a rear window glass (22), a rear door triangular window (23), a connecting seat (24), a support body (25) and a blasting structure (26), wherein the door body (21) is rotatably mounted on the rear door of the vehicle, and the rear window glass (22) is slidably mounted inside the door body (21); the rear door triangular window (23) is fixedly mounted on the rear end of the door body (21), and the connecting seat (24) is fixedly mounted on the surface of the rear door triangular window (23), and the support body (25) is fixedly mounted on the connecting seat (24); the blasting structure (26) is fixedly mounted on the front end of the support body (25) and extends to the outer side of the rear window glass (22).

4. The vehicle falling into water self-rescue expansion device as claimed in claim 1, characterized in that: The self-rescue seat (3) comprises a seat body (31), an anti-accident safety belt buckle (32) and an oxygen chamber (33), wherein the seat body (31) is fixedly mounted inside a vehicle, and the anti-accident safety belt buckle (32) is fixedly mounted on the outer side of the bottom of the seat body (31), and the oxygen chamber (33) is fixedly mounted on the outer side of the seat cushion of the seat body (31); the anti-accident safety belt buckle (32) comprises a connecting plate (321), an adjustment bracket (322), a disassembly bracket (323), a quick-release bolt (324) and a socket (325), wherein the connecting plate (321) is fixedly mounted on the outer side of the bottom of the seat body (31), and the adjustment bracket (322) is mounted on the outer side of the connecting plate (321). ; The disassembly bracket (323) is installed on the top of the adjustment bracket (322) through a quick-release bolt (324), and the socket (325) is fixedly installed on the top of the disassembly bracket (323); the oxygen chamber (33) includes a compressed oxygen cylinder (331), a protective outer pad (332), an air duct (333) and an oxygen inhalation bite (334), and the compressed oxygen cylinder (331) is fixedly installed on the outer side of the seat cushion of the seat body (31), and the protective outer pad (332) is fixedly installed on the outer side of the compressed oxygen cylinder (331); the air duct (333) is fixedly installed at the rear end of the compressed oxygen cylinder (331), and the oxygen inhalation bite (334) is fixedly installed at one end of the air duct (333).

5. A vehicle falling into water self-rescue expansion device as claimed in claims 2 and 3, characterized in that: The armor plate (131) inside the intermediate protective armor (13) is made of a metal plate that matches the bottom plate of the automobile, and an airbag is integrated inside the suspension airbag box (135). The airbag inside the suspension airbag box (135) can rapidly expand by generating a nitrogen flow through the combustion of the propellant inside the suspension airbag box (135). The airbag inside the suspension airbag box (135) is formed to form an airbag prototype; when the airbag inside the suspension airbag box (135) swells, the connecting metal sheet (136) will be torn, so that the suspension airbag box (135) is separated from the armor plate (131), and is folded outwards through the support base (133) and the rotating support arm (134), and finally stays at the oblique lower side of both sides of the vehicle; the suspension airbag box (135) can be manually controlled to start working through an emergency button inside the vehicle.

6. A vehicle falling into water self-rescue expansion device as claimed in claims 2 and 4, characterized in that: The auxiliary airbag (145) and the tail-lift airbag (146) inside the rear end protective armor (14) are two groups of airbags, and the size of the tail-lift airbag (146) is larger than that of the auxiliary airbag (145); the tail-lift airbag (146) can make the rear of the car float to the water surface, and the head of the vehicle will sink due to the weight of mechanical equipment such as the engine; the tail-lift airbag (146) can make the vehicle form a state in the water with the front of the vehicle facing down and the parking space facing up; the auxiliary airbag (145) and the tail-lift airbag (146) can be manually controlled to start working through an emergency button inside the vehicle.

7. The vehicle falling into water self-rescue expansion device as claimed in claim 5, characterized in that: The rear door triangular window (23) inside the self-rescue rear door (2) is made of a glass plate, and the shape of the rear door triangular window (23) is completely consistent with the glass of the car itself, and the rear door triangular window (23) can replace the glass of the car itself; the blasting structure (26) is made of a steel metal tube, the interior of which is filled with compressed hydrogen, and the top of which is filled with a metal ball, and the bottom of the blasting structure (26) is provided with an ignition device, and the hydrogen inside the blasting structure (26) can push the metal ball to hit the rear window glass (22) at high speed after being ignited; the amount of fuel in the blasting structure (26) is strictly controlled so that the metal ball can only smash the rear window glass (22) but cannot penetrate the rear window glass (22); the ignition device inside the blasting structure (26) can be manually controlled to start working through an emergency button inside the vehicle.

8. A vehicle falling into water self-rescue expansion device as claimed in claims 6 and 7, characterized in that: The quick-release bolt (324) inside the accident-proof safety belt buckle (32) is made of two metal bolts, and the quick-release bolt (324) can connect the disassembly bracket (323) and the quick-release bolt (324) together through threads, and the quick-release bolt (324) can separate the disassembly bracket (323) and the quick-release bolt (324) by rotating, so that the safety belt is loosened as a whole.

9. A vehicle falling into water self-rescue expansion device as claimed in claims 6 and 8, characterized in that: The compressed oxygen cylinder (331) inside the oxygen chamber (33) is composed of two groups of metal cylinders filled with oxygen, and the compressed oxygen cylinder (331) forms a seat cushion that tilts outward through the protective outer pad (332). When a person sits on the seat, the compressed oxygen cylinder (331) and the protective outer pad (332) contact the outer side of the thigh and are not subject to the main pressure of the human body. The oxygen inhalation bite (334) enables a person to hold the oxygen in the mouth to complete the breathing action.

10. A method for using the vehicle drowning self-rescue expansion device as claimed in claims 1 to 9, characterized in that: The device is designed to help people to save themselves and escape as soon as possible and improve the chance of survival when a vehicle falls into water. The following is a detailed method of use, which is divided into several key stages after the accident:

1. Accident and vehicle falling into water: When the vehicle falls into water due to an accident, the device will automatically start or the owner will manually start the emergency self-rescue function; 2. Escape preparation: After the vehicle falls into water, the person in the vehicle can directly press the emergency button, and all the self-rescue equipment in the vehicle will be put into operation; 3. Oxygen supply: During the self-rescue process, if the person in the vehicle is trapped and the air quality deteriorates, the compressed oxygen cylinder (331) in the oxygen chamber (33) will provide emergency oxygen to prolong the survival time; 4. Self-rescue and escape: After the life of the person in the vehicle is guaranteed by oxygen, the person prepares to escape. After the rear window glass (22) is opened by the blasting structure (26), the person can quickly escape through the rear door (2) or the window (22); 5. Waiting for rescue: After the person successfully escapes from the vehicle, the airbag can make the vehicle body float on the water for a long time, providing the occupants with more time to wait for rescue.

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