Automatic anti-flooding air bag for automobile

Abstract

The invention relates to the technical field of automobile safety air bags, in particular to an automobile automatic anti-flooding air bag which comprises an air bag body and a sensor, the air bag body is installed on a chassis on the two sides of an automobile in a folded mode, an air generator is installed on the air bag body and used for providing sufficient air for the air bag body, and the sensor is installed in a front cabin and used for sensing the air bag body. The sensor is used for sensing the water level around the vehicle and electrically connected with the gas generator through a wire. For vehicles parked or driven in areas prone to water accumulation, water can be prevented from entering the vehicle or an engine, and therefore vehicle damage caused by water inflow is avoided. In addition, when the vehicle accidentally falls into water, the vehicle can float, rescue time is provided for passengers, casualties and vehicle damage are avoided, after the air bag is used once, the air bag can be reused by replacing the inductor, the gas generator and the air bag, and the use cost of a user is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automobile safety airbags, in particular to an automobile automatic anti-flooding airbag. Background Art

[0002] With the development of my country's automobile industry and the improvement of traffic conditions, the market share of small and medium-sized cars has gradually increased. In daily life, cars have become one of the necessary means of transportation for people.

[0003] In the prior art, airbags are added to vehicles so that when the vehicle encounters water accumulation or falls into water, the airbags can play a role of floating support for the vehicle.

[0004] However, the applicant has found that the existing airbags are prone to accidental explosion when the vehicle is wading in water that does not reach the warning water level, or when encountering water splashes, rain, etc., and the existing airbag design cannot provide effective buoyancy to the vehicle after deployment, affecting the vehicle's floating effect. Summary of the invention

[0005] In view of this, the purpose of the present invention is to propose an automatic anti-flooding airbag for a car to solve the problem that existing cars encounter water accumulation or accidentally fall into water, which easily causes water to enter the cabin, engine, electrical components, etc., causing damage to the vehicle, and the vehicle cannot be floated quickly, causing water to enter the car and reducing the probability of escape of the occupants.

[0006] Based on the above purpose, the present invention provides an automatic anti-flooding airbag for automobile, including an airbag and a sensor, wherein the airbag is installed in a folded form on the chassis on both sides of the vehicle, and a gas generator is installed on the airbag, the gas generator is used to provide sufficient gas for the airbag, the sensor is installed in the front cabin, and is used to sense the water level around the vehicle, and the sensor is electrically connected to the gas generator through a wire; the automatic control method of the automatic anti-flooding airbag for automobile is as follows: step 1, when the water level around the vehicle reaches the sensor, the switch circuit in the sensor is back-connected; step 2, after the internal circuit of the sensor is back-connected, an ignition command is transmitted to the gas generator through a wire; step 3, after receiving the ignition command, the gas generator can quickly generate or release a large amount of gas to inflate the airbag; step 4, the airbag will expand due to receiving a large amount of gas, so that the airbag can be unfolded from the initial folded state to an "L" shape, so that buoyancy can be generated for the vehicle during the effective pressure holding time of the airbag.

[0007] Preferably, the airbag is made of a water-resistant, heat-resistant, and puncture-resistant pressure-maintaining material.

[0008] Preferably, the sensor is installed in a front compartment higher than half the height of the tire and lower than the engine air intake.

[0009] Preferably, the sensor consists of an electronic switch, a hydrolysis tablet and an automatic valve spring, the electronic switch is electrically connected to the wire, and the automatic valve spring is mounted on the electronic switch, and the end of the automatic valve spring is in contact with the electronic switch through the hydrolysis tablet.

[0010] Preferably, the hydrolyzed tablet is a tablet that disintegrates rapidly when in contact with water, and when the water level reaches the position of the sensor, the hydrolyzed tablet can disintegrate rapidly to trigger the automatic valve spring, so that the electronic switch can be closed, thereby achieving the purpose of closing the ignition switch.

[0011] Preferably, the airbag will present an "L" shape after being inflated and unfolded.

[0012] Preferably, the "L" shape of the airbag after deployment has a portion located below the vehicle chassis and another portion located outside the side door, thereby providing effective buoyancy to the vehicle.

[0013] Beneficial effects of the present invention: The automatic anti-flooding airbag for automobiles provided by the present invention is designed for vehicles parked or traveling in areas prone to waterlogging. When the water level reaches the sensor, the tablets in the sensor decompose to push the internal automatic valve spring, causing the electronic switch circuit to be turned on to generate an ignition command. After receiving the ignition command, the gas generator rapidly generates a large amount of gas to inflate the airbag. The airbag expands into an "L" shape, generating buoyancy for the vehicle within the effective pressure holding time, thereby preventing water from entering the interior of the vehicle or the engine, thereby avoiding damage to the vehicle caused by water ingress. In addition, when the vehicle accidentally falls into the water, the vehicle can be floated, providing the occupants with rescue time, thereby avoiding casualties and vehicle damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 is a schematic diagram of the structure of a sensor according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of an airbag folded and installed on a vehicle according to an embodiment of the present invention.

[0016] In the figure: 1. air bag; 2. gas generator; 3. sensor; 31. electronic switch; 32. hydrolysis tablet; 33. automatic valve spring; 4. wire. DETAILED DESCRIPTION

[0017] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0018] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connecting" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "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.

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, the automatic anti-flooding airbag for automobile comprises an airbag 1 and a sensor 3. The airbag 1 is installed in a folded form on the chassis on both sides of the vehicle. When it needs to be deployed, the gas generator 3 inflates the airbag 1, and a gas generator 2 is installed on the airbag 1. The gas generator 2 is used to provide sufficient gas for the airbag 1. The sensor 3 is installed in the front cabin for sensing the water level around the vehicle. The sensor 3 is electrically connected to the gas generator 2 through a wire 4.

[0020] When the water level reaches the sensor 3, the electronic switch circuit in the sensor 3 is turned on to generate an ignition command. After receiving the ignition command, the gas generator 2 quickly generates a large amount of gas to inflate the airbag 1. The airbag 1 expands into an "L" shape, generating buoyancy for the vehicle within the effective pressure holding time. This can prevent water from entering the vehicle or the engine, thereby avoiding damage to the vehicle caused by water ingress. In addition, when the vehicle accidentally falls into the water, the vehicle can be floated, providing rescue time for the occupants, avoiding casualties and vehicle damage.

[0021] After the solution is used once, the airbag can be used again by replacing the sensor and the gas generator, thereby reducing the user's cost.

[0022] In a preferred embodiment of the present invention, the air bag 1 is made of a water-resistant, heat-resistant, and puncture-resistant pressure-maintaining material, and can effectively maintain pressure for up to 2-3 days, providing sufficient time for rescue.

[0023] In another preferred embodiment of the present invention, the sensor 3 is installed in the front cabin at a level higher than half the height of the tire and lower than the engine air intake. This can avoid accidental explosion of the airbag at low water levels, avoid the effects of water splashing, rainfall, etc., and avoid timely explosion when the vehicle wades through water and reaches a warning water level.

[0024] In another preferred embodiment of the present invention, the sensor 3 consists of an electronic switch 31, a hydrolysis tablet 32 ​​and an automatic valve spring 33, the electronic switch 31 is electrically connected to the wire 4, and the automatic valve spring 33 is installed on the electronic switch 31, and the end of the automatic valve spring 33 is in contact with the electronic switch 31 through the hydrolysis tablet 32.

[0025] It should be noted that the hydrolyzed tablet 32 ​​is a tablet that disintegrates rapidly when in contact with water. Tablets that can disintegrate rapidly when in contact with water usually contain specific disintegrants. The action mechanisms of these disintegrants include capillary action, swelling action, gas production action, etc., so that the tablets can be quickly decomposed in water, and when the water level reaches the position of the sensor 3, the hydrolyzed tablet can quickly disintegrate and trigger the automatic valve spring 33, so that the electronic switch 31 can be closed, thereby achieving the purpose of closing the ignition switch.

[0026] It should be noted that the airbag 1 will present an "L" shape after being inflated and deployed. A portion of the "L" shape of the deployed airbag 1 is located under the vehicle chassis, and the other portion is located outside the side door, thereby providing effective buoyancy for the vehicle.

[0027] The automatic control method of the automatic anti-flooding airbag of a car is as follows: step 1, when the water level around the vehicle reaches the sensor 3, the switch circuit in the sensor 3 is turned back on; step 2, after the internal circuit of the sensor 3 is turned back on, the ignition command is transmitted to the gas generator 2 through the wire; step 3, after receiving the ignition command, the gas generator 2 can quickly generate or release a large amount of gas to inflate the airbag 1; step 4, the airbag 1 will expand due to receiving a large amount of gas, so that the airbag 1 can be unfolded from the initial folded state to an "L" shape, so that buoyancy can be generated on the vehicle during the effective pressure holding time of the airbag 1.

[0028] The automatic control method of the automatic anti-flooding airbag of a car is as follows: step 1, when the water level around the vehicle reaches the position of the sensor 3, the hydrolysis tablet 32 ​​can quickly disintegrate and trigger the automatic valve spring 33, so that the electronic switch 31 can be closed, thereby achieving the purpose of closing the ignition switch; step 2, after the internal circuit of the sensor 3 is back, the ignition command is transmitted to the gas generator 2 through the wire; step 3, after receiving the ignition command, the gas generator 2 can quickly generate or release a large amount of gas to inflate the airbag 1; step 4, the airbag 1 will expand due to receiving a large amount of gas, so that the airbag 1 can be unfolded from the initial folded state to an "L" shape, so that buoyancy can be generated for the vehicle during the effective pressure holding time of the airbag 1.

[0029] In summary, the present application is capable of using airbags to float a vehicle in water. When a vehicle is parked in a low-lying area and encounters water accumulation of a certain depth, the vehicle can be floated to prevent water from entering the vehicle interior or the engine. When a vehicle is in an underground garage and water backflows to a point that threatens the safety of the vehicle, or when an accident occurs and the vehicle falls into a pond / river, the vehicle can be floated to gain more time for rescue. When the vehicle is driving on a flooded road, if the depth of the accumulated water reaches the warning depth, the vehicle will be floated to prevent the accumulated water from entering the engine air intake, thereby reducing the damage to the vehicle caused by the accumulated water. The vehicle can be brought to a safe area with the help of manpower to continue normal driving, which also protects the safety of the members to a certain extent.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0031] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The automatic anti-flooding airbag for automobiles is characterized by: The invention comprises an air bag (1) and a sensor (3), wherein the air bag (1) is installed in a folded form on the chassis of both sides of the vehicle, and a gas generator (2) is installed on the air bag (1), and the gas generator (2) is used to provide sufficient gas for the air bag (1). The sensor (3) is installed in the front cabin and is used to sense the water level around the vehicle. The sensor (3) is electrically connected to the gas generator (2) via a wire (4). The automatic control method of the automatic anti-flooding air bag for a vehicle comprises: step 1, when the water level around the vehicle reaches the sensor (3), The switch circuit in the sensor (3) is switched back on; step 2, after the internal circuit of the sensor (3) is switched back on, an ignition command is transmitted to the gas generator (2) via a wire; step 3, after receiving the ignition command, the gas generator (2) can quickly generate or release a large amount of gas to inflate the airbag (1); step 4, the airbag (1) expands due to receiving a large amount of gas, so that the airbag (1) can be unfolded from an initial folded state to an "L" shape, so that buoyancy can be continuously generated on the vehicle during the effective pressure holding time of the airbag (1).

2. The automatic anti-flooding airbag for automobile according to claim 1, characterized in that: The air bag (1) is made of a water-resistant, heat-resistant and puncture-resistant pressure-maintaining material.

3. The automatic anti-flooding airbag for automobile according to claim 1, characterized in that: The sensor (3) is installed in the front compartment at a level higher than half the height of the tire and lower than the engine air intake.

4. The automatic anti-flooding airbag for automobile according to claim 1, characterized in that: The sensor (3) comprises an electronic switch (31), a hydrolysis tablet (32) and an automatic valve spring (33); the electronic switch (31) is electrically connected to the wire (4), and the automatic valve spring (33) is mounted on the electronic switch (31), and an end of the automatic valve spring (33) is in contact with the electronic switch (31) through the hydrolysis tablet (32).

5. The automatic anti-flooding airbag for automobile according to claim 4, characterized in that: The hydrolyzed tablet (32) is a tablet that disintegrates rapidly when in contact with water, and when the water level reaches the position of the sensor (3), the hydrolyzed tablet can disintegrate rapidly to trigger the automatic valve spring (33), so that the electronic switch (31) can be closed, thereby achieving the purpose of closing the ignition switch.

6. The automatic anti-flooding airbag for automobile according to claim 1, characterized in that: The air bag (1) will present an "L" shape after being inflated and unfolded.

7. The automatic anti-flooding airbag for automobile according to claim 6, characterized in that: The air bag (1) is in an "L" shape after being deployed, with one part located below the vehicle chassis and the other part located outside the side door, thereby being able to provide effective buoyancy for the vehicle.

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