A stacked telescoping anti-bend airbag

Abstract

This invention discloses a stacked telescopic anti-bending airbag, comprising an airbag body, which includes a bladder and a telescopic spring confined within the bladder. One end of the bladder has a vent connector. A mounting plate is fixedly connected to one end of the bladder, and a pressure plate is fixedly connected to the other end. One end of the telescopic spring abuts against the mounting plate, and the other end abuts against the pressure plate. Multiple steel wire ropes are arranged inside the bladder, with one end fixed to the pressure plate and the other end fixed to the mounting plate. The steel wire ropes are arranged in a crisscross pattern. This invention provides active or passive protection and cushioning for the vehicle by inflating and extending the airbag body. After deflation, the airbag body shrinks and returns to its initial state. After inflation, the crisscrossed steel wire ropes and the compression spring together form a truss structure, improving the airbag's anti-bending capability.

Description

Technical Field

[0001] This invention relates to the field of vehicle airbag technology, specifically to a stacked telescopic anti-bending safety airbag. Background Technology

[0002] With the booming development of the automotive industry, its safety has received increasing attention. Airbags, as a core component of a vehicle's passive restraint system, work in conjunction with seat belts to form a crucial occupant collision protection device and have become standard safety features in passenger vehicles. One type of airbag system mainly consists of a gas generator, airbag, restraint structure, and control system. After a collision signal is triggered, the gas generator produces gas, and the airbag rapidly deploys to form a cushioning airbag, absorbing the collision impact and reducing the risk of head and chest injuries to occupants. This type of airbag is primarily used for in-vehicle protection. Another type of external airbag is an inflatable buffer structure that rapidly deploys in key areas on the exterior of the vehicle before a collision. Its core function is to pre-deploy an external buffer layer, absorb / deflect impact energy, and reduce intrusion into the passenger compartment and pedestrian injuries.

[0003] Chinese Patent Publication No. CN201362231Y discloses an external automotive airbag, comprising a car body and airbags. Its key feature is that the airbags are located on the left, right, and / or rear sides of the car body, with at least one ejection hole on each side. The airbags are positioned within these ejection holes and inflate to deploy outwards when needed. By placing multiple airbags at the front, rear, or sides of the car, they rapidly deploy upon collision with other objects, providing cushioning, shock absorption, and pressure reduction, effectively protecting the safety of occupants, the vehicle body, and any injured persons or animals. However, this type of airbag inflates and deploys through a chemical reaction caused by a small-dose explosive explosion. Such airbags are single-use products; after use, they cannot be restored to their original state and cannot be reused, resulting in resource waste and difficulties in subsequent disposal. Summary of the Invention

[0004] The purpose of this invention is to solve the technical problem that existing airbags cannot be restored after inflation, and to provide a stacked telescopic anti-bending safety airbag that can be quickly inflated for protection and can restore its structure after inflation, thus enabling reuse.

[0005] To achieve the above objectives, the present invention employs the following technical solution: A stacked, telescopic, bend-resistant airbag includes an airbag body. The airbag body includes a bladder and a telescopic spring confined inside the bladder. One end of the bladder is provided with a vent connector for inflating or deflating the bladder. One end of the bladder is fixedly connected to a mounting plate, and the other end of the bladder is fixedly connected to a pressure plate. One end of the telescopic spring abuts against the mounting plate, and the other end of the telescopic spring abuts against the pressure plate. The vent connector is mounted on the mounting plate. Multiple steel wire ropes are provided inside the bladder. One end of each steel wire rope is fixed to the pressure plate, and the other end of each steel wire rope is fixed to the mounting plate. The multiple steel wire ropes are arranged in a crisscross pattern.

[0006] Furthermore, the venting connector is connected to a venting pipe, and a T-joint is connected to the venting pipe. The first connector of the T-joint is connected to the venting pipe, the second connector of the T-joint is connected to an air pump pipe, the air pump pipe is connected to the compressed gas output end of a pressurizing pump, and the third connector of the T-joint is connected to a delivery pipe, the delivery pipe is connected to a gas storage tank, and the gas storage tank stores compressed gas. The gas storage tank is used to quickly inflate the bag and pressurize the gas in the bag using a pressurizing pump.

[0007] Furthermore, a first one-way valve is installed on the delivery pipe, which delivers the gas in the gas storage tank unidirectionally toward the bag; a first switching valve for controlling the opening and closing of the delivery pipe is also connected to the delivery pipe, and the first switching valve is located between the first one-way valve and the gas storage tank.

[0008] Furthermore, a second switching valve is provided on the vent pipe, which is used to control the opening and closing of the vent pipe.

[0009] Furthermore, the air inlet of the pressurizing pump is connected to an air inlet pipe, and the end of the air inlet pipe away from the pressurizing pump is connected to the air storage tank; a reversing valve is connected to the air inlet pipe and the air pump pipe; when the bag is inflated and pressurized, the reversing valve connects the output end of the pressurizing pump to the bag and the air inlet of the pressurizing pump to the air storage tank to pressurize and deliver compressed gas into the bag; when the air storage tank is inflated and stored with compressed gas, the reversing valve switches the air path state, connecting the output end of the pressurizing pump to the air storage tank and the air inlet of the pressurizing pump to the bag to pressurize and deliver gas from the bag to the air storage tank.

[0010] Furthermore, the pouch is made of fabric, and the telescopic spring is spirally arranged and bonded to the inner wall of the pouch.

[0011] Furthermore, the gas storage tank includes a tank body, a movable block, and a compression spring. The delivery pipe is connected to one side of the tank body and communicates with the inner cavity of the tank body. The movable block is disposed inside the tank body and slides against the inner wall of the tank body. The compression spring is located inside the tank body and on the side of the movable block away from the delivery pipe. The compression spring abuts against the movable block to provide an elastic force that pushes the movable block to move in the direction of the delivery pipe.

[0012] Furthermore, an installation cylinder is provided outside the bag, and the installation plate is fixedly connected to the installation cylinder. The opening of the installation cylinder is provided with an installation step that matches the top pressure plate. An expansion block is installed on one side of the installation step. The expansion block is annular and fits around the bag. An expansion cavity is opened inside the expansion block. An expansion membrane is provided on the side of the expansion cavity near the bag. The expansion cavity is connected to the tank body through an expansion air pipe. The connection between the expansion air pipe and the tank body is located on the side wall of the tank body and at the maximum stroke point near the movable block and away from the delivery pipe. The expansion air pipe is connected to the inside of the tank body so that compressed gas in the tank body fills the expansion cavity. Under the pressure of the compressed gas, the expansion membrane bulges out towards the side near the bag and abuts against the side wall of the top pressure plate, clamping and locking the top pressure plate.

[0013] Furthermore, an exhaust pipe is connected to the vent pipe, the exhaust pipe is located between the second switch valve and the three-way connector, and the exhaust pipe is equipped with a third switch valve.

[0014] Furthermore, the tank is equipped with a safety valve and a connecting pipe, the connecting pipe being located at the end of the tank away from the delivery pipe, and the safety valve being located at the end of the tank closer to the delivery pipe.

[0015] This invention provides a stacked, telescopic, and bend-resistant airbag with the following advantages: Inflation of the airbag via a gas reservoir allows the airbag to extend and provide active or passive protection and cushioning for the vehicle. After the cushioning effect ends, the airbag deflates, and the telescopic spring contracts, reducing the airbag's volume and restoring it to its original size. This allows the airbag to return to its initial state and be reused. A pressurization pump pressurizes the gas inside the airbag, maintaining a certain pressure during cushioning for effective cushioning. The gas reservoir stores pressurized gas, allowing the airbag to extend and inflate when needed for cushioning. The interconnected structure allows pressurized gas from the gas tank to be rapidly released into the airbag, providing a large volume of gas. A pressure pump then pressurizes the gas in the airbag to maintain a certain pressure. The gas tank and pressure pump work together, with the gas tank providing a large volume of gas to supplement the small flow of gas in the pressure pump. This overcomes the limitation of the pressure pump not being able to quickly replenish large volumes of gas, allowing for rapid inflation of the airbag to expand and extend, while the pressure pump simultaneously maintains a small flow of pressurized gas within the airbag to keep it at a certain pressure. This ensures that the internal pressure of the airbag is maintained at a constant level, improving the cushioning effect. The crisscrossing steel cables and compression springs together form a truss structure, enhancing the airbag's resistance to bending. Attached Figure Description

[0016] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings: Figure 1 This invention provides a schematic diagram of the internal structure of an airbag in a stacked, telescopic, and bend-resistant safety airbag. Figure 2 This is a schematic diagram of the structure of a stacked telescopic anti-bending airbag provided by the present invention; Figure 3 for Figure 2 Schematic diagram of a partial structure at part A in the middle; Figure 4 This is a schematic diagram of the structure of a stacked telescopic anti-bending airbag with the airbag body extended in the extended state, as provided by the present invention.

[0017] The following are the labeling instructions in the diagram: 1. Airbag body; 11. Airbag bag; 12. Telescopic spring; 13. Vent connector; 14. Mounting plate; 15. Top pressure plate; 16. Steel wire rope; 2. Vent pipe; 21. Second switch valve; 22. Exhaust pipe; 23. Third switch valve; 3. T-connector; 4. Pressure pump; 41. Air pump pipe; 42. Air inlet pipe; 43. Reversing valve; 5. Air tank; 51. Tank body; 52. Movable block; 53. Compression spring; 54. Safety valve; 55. Connecting pipe; 6. Delivery pipe; 61. First one-way valve; 62. First switch valve; 7. Mounting cylinder; 71. Mounting step; 72. Expansion block; 73. Expansion cavity; 74. Expansion diaphragm; 75. Expansion air pipe. Detailed Implementation

[0018] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that in the embodiments of the present invention, all directional indications (such as up-down-left-right-forward-backward...) are only used to explain the relative positional relationship and movement between the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0021] like Figures 1-4As shown, a stacked telescopic anti-bending safety airbag includes an airbag body 1. The airbag body 1 includes a bladder 11 and a telescopic spring 12 confined inside the bladder 11. One end of the bladder 11 is provided with a venting connector 13 for inflating or deflating the bladder 11. One end of the bladder 11 is fixedly connected to a mounting plate 14, and the other end of the bladder 11 is fixedly connected to a pressure plate 15. One end of the telescopic spring 12 abuts against the mounting plate 14, and the other end of the telescopic spring 12 abuts against the pressure plate 15. The venting connector 13 is mounted on the mounting plate 14. Multiple steel wire ropes 16 are provided inside the bladder 11. One end of each steel wire rope 16 is fixed to the pressure plate 15, and the other end of each steel wire rope 16 is fixed to the mounting plate 14. The multiple steel wire ropes 16 are arranged in a crisscross pattern. By incorporating a compression spring 12, the airbag 11 can retract after deflation, facilitating its retraction and reuse. The compression spring 12 also supports the airbag 11, maintaining its stable shape after inflation. Cross-arranged steel cables 16 are installed; after inflation, the diagonally stretched steel cables 16 are stretched and taut. While the compression spring 12 supports the shape of the airbag 11, the diagonally stretched, intersecting steel cables 16 and the compression spring 12 together form a truss structure, ensuring the stability of the inflated airbag structure and improving its bending resistance. This reduces the overall bending deformation of the airbag when supporting the vehicle, enhancing its stability and preventing instability caused by bending when the vehicle is straightened. A mounting plate 14 facilitates installation, and a top pressure plate 15 facilitates contact with impact objects and maintains a flat outer surface during retraction. It should be noted that the steel wire rope 16 is a soft steel wire rope, which allows the steel wire rope 16 to bend inside the airbag 11 when the airbag contracts, facilitating the contraction of the airbag.

[0022] Specifically, the venting connector 13 is connected to a venting pipe 2, and a three-way connector 3 is connected to the venting pipe 2. The first connector of the three-way connector 3 is connected to the venting pipe 2, and the second connector of the three-way connector 3 is connected to an air pump pipe 41. The air pump pipe 41 is connected to the compressed gas output end of the pressurizing pump 4, and the third connector of the three-way connector 3 is connected to a delivery pipe 6. The delivery pipe 6 is connected to a gas storage tank 5, which stores compressed gas. The gas storage tank 5 is used to quickly inflate the bag 11 and pressurize the gas in the bag 11 through the pressurizing pump 4.

[0023] Using the above technical solution, compressed gas is provided by the gas tank 5 to quickly inflate the airbag 11, allowing the airbag body 1 to inflate and extend to provide active or passive protection and cushioning for the vehicle. After the cushioning protection ends, the airbag body 1 deflates, and the telescopic spring 12, under the action of the contraction force, causes the airbag 11 to contract, thereby reducing the volume of the airbag body 1 and restoring it to its original size, thus allowing the airbag body 1 to return to its initial state. The pressurization pump 4 pressurizes the gas inside the airbag 11, ensuring that the gas inside the airbag 11 maintains a certain pressure during cushioning, thus effectively providing cushioning. The gas tank 5 stores pressurized gas, and when the airbag body 1 needs to inflate and extend for cushioning, the gas tank 5 is connected to the airbag 11. The gas tank 5 is rapidly released into the airbag 11, providing a large volume of gas. The pressurization pump 4 then pressurizes the gas in the airbag 11, maintaining a certain pressure. The gas tank 5 and the pressurization pump 4 work together, with the gas tank 5 providing a large volume of gas to supplement the small flow of gas in the pressurization pump 4. This overcomes the limitation of the pressurization pump 4 in rapidly replenishing large volumes of gas, allowing for the rapid inflation of the airbag and expansion of the airbag 11. Simultaneously, the pressurization pump 4 replenishes the airbag with a small flow of pressurized gas, maintaining a certain pressure within the airbag. This ensures that the internal pressure of the airbag body 1 is maintained at a certain level, improving the cushioning effect and preventing the airbag body 1 from collapsing due to insufficient pressure and failing to provide active protection. The three-way connector 3 includes a first connector, a second connector, and a third connector that are interconnected.

[0024] Specifically, a first one-way valve 61 is installed on the delivery pipe 6, which directs the gas in the gas storage tank 5 to the bag 11 in one direction. A first switching valve 62, which controls the opening and closing of the delivery pipe 6, is also connected to the delivery pipe 6. The first switching valve 62 is located between the first one-way valve 61 and the gas storage tank 5. By controlling the gas supply from the gas storage tank 5 to the bag 11 via the first switching valve 62, the appropriate amount of gas can be controlled to be delivered to the bag 11 as needed. The one-way valve 61 ensures unidirectional delivery, preventing gas from flowing back into the gas storage tank 5.

[0025] Specifically, a second switching valve 21 is provided on the ventilator 2, which is used to control the opening and closing of the ventilator 2. The first switching valve 62 and the second switching valve 21 are electric valves, including but not limited to electric ball valves, electric gate valves, and electric shut-off valves; the inflation of the bladder 11 is controlled by setting the second switching valve 21.

[0026] Specifically, the air inlet of the pressurizing pump 4 is connected to an air inlet pipe 42, and the end of the air inlet pipe 42 away from the pressurizing pump 4 is connected to the air storage tank 5; a reversing valve 43 is connected to the air inlet pipe 42 and the air pump pipe 41; when the bag 11 is inflated and pressurized, the reversing valve 43 connects the output end of the pressurizing pump 4 to the bag 11 and the air inlet of the pressurizing pump 4 to the air storage tank 5 to pressurize and deliver compressed gas into the bag 11; when the air storage tank 5 is inflated and stored with compressed gas, the reversing valve 43 switches the air path state, connecting the output end of the pressurizing pump 4 to the air storage tank 5 and the air inlet of the pressurizing pump 4 to the bag 11 to pressurize and deliver the gas in the bag 11 into the air storage tank 5. When the pressurizing pump 4 is working, it draws pressurized gas from the gas storage tank 5 into the pressurizing pump 4 for repressurization, thereby making the gas pressurized more quickly and resulting in a higher output gas pressure. The gas path of the pressurizing pump 4 is switched via the reversing valve 43, so that when the airbag body 1 is inflated, the pressurizing pump 4 pressurizes the gas in the gas storage tank 5 and delivers it to the airbag 11; when the airbag body 1 is folded and retracted, the pressurizing pump 4 pressurizes the gas in the airbag 11 and delivers it to the gas storage tank 5 for storage, achieving internal gas circulation. Specifically, the reversing valve 43 is a three-position four-way reversing valve 43. When the pressurizing pump 4 is not working, the reversing valve 43 is in the neutral position, blocking the connection between the airbag 11 and the gas storage tank 5 to prevent air leakage.

[0027] Specifically, the pouch 11 is made of fabric, and the telescopic spring 12 is spirally arranged and bonded to the inner wall of the pouch 11. The fabric material of the pouch 11 facilitates folding, allowing it to be folded and stored in the vehicle body.

[0028] Specifically, the gas storage tank 5 includes a tank body 51, a movable block 52, and a compression spring 53. The delivery pipe 6 is connected to one side of the tank body 51 and communicates with the inner cavity of the tank body 51. The movable block 52 is disposed inside the tank body 51 and slides against the inner wall of the tank body 51. The compression spring 53 is located inside the tank body 51 and on the side of the movable block 52 away from the delivery pipe 6. The compression spring 53 abuts against the movable block 52 to provide a spring force that pushes the movable block 52 toward the delivery pipe 6. The compression spring 53 provides a spring force to pressurize the gas inside the gas storage tank 5, and when inflating the bag 11, it quickly pushes the movable block 52 to quickly expel the compressed gas inside and inflate the bag 11. When not in use, the internal gas pressure is maintained, and when in use, the gas is quickly expelled to increase the inflation speed.

[0029] Specifically, an installation cylinder 7 is provided outside the bag 11, and the installation plate 14 is fixedly connected to the installation cylinder 7. The opening of the installation cylinder 7 is provided with an installation step 71 that matches the top pressure plate 15. An expansion block 72 is installed on one side of the installation step 71. The expansion block 72 is annular and fits around the bag 11. An expansion cavity 73 is opened inside the expansion block 72. An expansion membrane 74 is provided on the side of the expansion cavity 73 near the bag 11. The expansion cavity 73 is connected to the tank 51 through an expansion air pipe 75. The connection between the expansion air pipe 75 and the tank 51 is located on the side wall of the tank 51 and is located near the maximum stroke of the movable block 52 away from the delivery pipe 6, so that the movable block... During the inflation of the airbag body 1, the movable block 52 moves towards the delivery pipe 6. The movable block 52 passes through the connection between the expansion tube 75 and the tank 51, causing the expansion tube 75 to disconnect from the compressed gas in the tank 51. The expansion tube 75 connects with the open space on the side of the movable block 52 in the tank 51 away from the delivery pipe 6, thereby depressurizing the gas in the expansion cavity 73 and releasing the clamping effect on the top pressure plate 15, making it easier for the airbag 11 to inflate and pop out. The expansion tube 75 connects with the inside of the tank 51, allowing the compressed gas in the tank 51 to fill the expansion cavity 73. Under the pressure of the compressed gas, the expansion membrane 74 bulges out towards the side of the airbag 11 and abuts against the side wall of the top pressure plate 15, clamping and locking the top pressure plate 15.When the airbag body 1 is not in operation, the airbag 11 is in a contracted and folded state and retracts into the mounting cylinder 7. The top pressure plate 15 retracts onto the mounting step 71 and is limited by the mounting step 71 to ensure the consistency of the position of the top pressure plate 15. At this time, compressed gas is added to the tank 51 to provide a compressed gas source for the next protection. When compressed gas is added to the tank 51, the movable block 52 moves away from the delivery pipe 6. When the movable block 52 moves to its maximum stroke away from the delivery pipe 6, the expansion pipe 75 connects with the chamber on the side of the tank 51 containing compressed gas, so that the compressed gas enters the expansion cavity 73. The compressed gas in the expansion cavity 73 exerts pressure on the expansion diaphragm 74, causing the expansion diaphragm 74 to elastically deform and bulge out towards the top pressure plate 15. The bulging expansion diaphragm 74 clamps and locks the outside of the top pressure plate 15, thereby ensuring the top pressure plate... 15. The top pressure plate 15 is kept in a stable position and flush with the outer surface of the vehicle body to keep the outer surface of the vehicle body flat. The top pressure plate 15 is clamped by the expansion diaphragm 74 to prevent it from shaking and shifting during normal vehicle operation. The expansion diaphragm 74 also prevents the traditional mechanical locking mechanism from locking the structure and causing the airbag body 1 to fail to deploy. When the airbag body 1 needs to be deployed, the compressed gas in the tank 51 inflates the airbag 11. The movable block 52 moves towards the delivery pipe 6, so that the expansion pipe 75 is connected to the chamber on the side of the tank 51 without compressed gas. This allows the compressed gas in the expansion cavity 73 to be discharged into the chamber on the side of the tank 51 away from the compressed gas. The gas in the expansion cavity 73 is depressurized and the expansion diaphragm 74 rebounds to release the clamping state on the top pressure plate 15, so that the top pressure plate 15 can be deployed as the airbag 11 is inflated.

[0030] Specifically, an exhaust pipe 22 is connected to the vent pipe 2. The exhaust pipe 22 is located between the second switch valve 21 and the three-way connector 3. The exhaust pipe 22 is equipped with a third switch valve 23. By setting the exhaust pipe 22, after the airbag body 1 has finished providing protection, the third switch valve 23 can be opened to discharge the gas inside the airbag; or after the pressurization pump 4 draws the air inside the airbag back to the tank 51, if the gas inside the tank 51 is reduced and not full, the third switch valve 23 can be opened, and the pressurization pump 4 can pressurize and deliver external air to the tank 51 of the gas storage tank 5, so that the compressed gas inside the tank 51 reaches the initial value.

[0031] Specifically, the tank 51 is equipped with a safety valve 54 and a connecting pipe 55. The connecting pipe 55 is located at the end of the tank 51 away from the delivery pipe 6, and the safety valve 54 is located at the end of the tank 51 closer to the delivery pipe 6. The safety valve 54 maintains a stable air pressure inside the tank 51 to prevent excessive air pressure. The connecting pipe 55 allows the chamber of the movable block 52 inside the tank 51 away from the delivery pipe 6 to be connected to the outside air, thereby facilitating the movement of the movable block 52 towards the delivery pipe 6.

[0032] The present invention provides a stacked telescopic anti-bending airbag. In use, the air tank 5 is installed inside the vehicle body, and the airbag body 1 and mounting cylinder 7 are installed on the outer side of the vehicle body in areas requiring protection, such as the front bumper, rear bumper, and sides. Sensors detect the distance and movement of other objects, and the control system controls the operation of the airbag body 1 and the pressurization pump 4. When an object is detected approaching, the reversing valve 43 switches to pressurizing the airbag body 1, and the pressurization pump 4 starts. When an object is determined to pose a collision risk to the vehicle body, the first switch valve 62 and the second switch valve 21 are opened. Compressed gas in the air tank 5 inflates the airbag 11 under the action of the compression spring 53, and the pressurization pump 4 starts, releasing some of the compressed gas from the air tank 5 into the airbag. Pressurization is applied to the airbag 11, causing it to inflate rapidly and maintain a certain internal pressure to actively protect the vehicle body. After protection ends, the control reversing valve 43 switches to the inflation state of the air tank 5, and the pressurization pump 4 starts to extract the gas from the airbag 11 and pressurize and deliver it into the air tank 5. After the gas is extracted from the airbag 11, the airbag 11 contracts and folds under the contraction force of the telescopic spring 12 and is housed in the mounting cylinder 7. The top pressure plate 15 retracts onto the mounting step 71 and is clamped under the action of the expansion diaphragm 74. After the airbag body 1 contracts and the air tank 5 is inflated, the first switch valve 62 and the second switch valve 21 close, the pressurization pump 4 stops working, and the reversing valve 43 switches to the neutral position, so that all components are in a non-working state.

[0033] The parts not covered in this technical solution can be implemented using existing technologies.

[0034] The foregoing has shown and described the basic principles, main features, and characteristics of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention includes the appended claims and their equivalents.

Claims

1. A stacked, telescopic, and bend-resistant airbag, characterized in that: The system includes an airbag body (1), which includes a bag (11) and a telescopic spring (12) that is confined inside the bag (11). One end of the bag (11) is provided with a venting connector (13) for inflating or deflating the bag (11). One end of the bag (11) is fixedly connected to a mounting plate (14), and the other end of the bag (11) is fixedly connected to a pressure plate (15). One end of the telescopic spring (12) abuts against the mounting plate (14), and the other end of the telescopic spring (12) abuts against the pressure plate (15). The venting connector (13) is mounted on the mounting plate (14). Multiple steel wire ropes (16) are provided inside the bag (11). One end of each steel wire rope (16) is fixed to the pressure plate (15), and the other end of each steel wire rope (16) is fixed to the mounting plate (14). The multiple steel wire ropes (16) are arranged in a crisscross pattern.

2. The stacked telescopic anti-bending airbag according to claim 1, characterized in that: The venting connector (13) is connected to a venting pipe (2), and a three-way connector (3) is connected to the venting pipe (2). The first connector of the three-way connector (3) is connected to the venting pipe (2), and the second connector of the three-way connector (3) is connected to an air pump pipe (41). The air pump pipe (41) is connected to the compressed gas output end of the pressurizing pump (4). The third connector of the three-way connector (3) is connected to a delivery pipe (6), and the delivery pipe (6) is connected to a gas storage tank (5). The gas storage tank (5) stores compressed gas. The gas storage tank (5) is used to quickly inflate the bag (11) and pressurize the gas in the bag (11) through the pressurizing pump (4).

3. A stacked, telescopic, bend-resistant airbag according to claim 2, characterized in that: A first check valve (61) is installed on the delivery pipe (6), which delivers the gas in the gas storage tank (5) to the bag (11) in one direction. A first switch valve (62) for controlling the opening and closing of the delivery pipe (6) is also connected to the delivery pipe (6), and the first switch valve (62) is located between the first check valve (61) and the gas storage tank (5).

4. A stacked telescopic anti-bending airbag according to claim 3, characterized in that: A second switching valve (21) is provided on the vent pipe (2), and the second switching valve (21) is used to control the opening and closing of the vent pipe (2).

5. A stacked, telescopic, bend-resistant airbag according to claim 4, characterized in that: The air inlet of the pressurizing pump (4) is connected to an air inlet pipe (42), and the end of the air inlet pipe (42) away from the pressurizing pump (4) is connected to the gas storage tank (5). A reversing valve (43) is connected to the air inlet pipe (42) and the air pump pipe (41). When the bag (11) is inflated and pressurized, the reversing valve (43) connects the output end of the pressurizing pump (4) to the bag (11) and the air inlet of the pressurizing pump (4) to the gas storage tank (5) to pressurize and deliver compressed gas into the bag (11). When the gas storage tank (5) is inflated and stored, the reversing valve (43) switches the gas path state so that the output end of the pressurizing pump (4) is connected to the gas storage tank (5) and the air inlet of the pressurizing pump (4) is connected to the bag (11) to pressurize and deliver the gas in the bag (11) into the gas storage tank (5).

6. A stacked telescopic anti-bending airbag according to claim 3, characterized in that: The pouch (11) is made of fabric, and the telescopic spring (12) is spirally arranged and adhered to the inner wall of the pouch (11).

7. A stacked, telescopic, bend-resistant airbag according to claim 5, characterized in that: The gas storage tank (5) includes a tank body (51), a movable block (52), and a compression spring (53). The delivery pipe (6) is connected to one side of the tank body (51) and communicates with the inner cavity of the tank body (51). The movable block (52) is located inside the tank body (51) and slides in cooperation with the inner wall of the tank body (51). The compression spring (53) is located inside the tank body (51) and on the side of the movable block (52) away from the delivery pipe (6). The compression spring (53) abuts against the movable block (52) to provide a spring force to push the movable block (52) to move in the direction of the delivery pipe (6).

8. A stacked telescopic anti-bending airbag according to claim 7, characterized in that: An installation cylinder (7) is provided outside the pouch (11). The installation plate (14) is fixedly connected to the installation cylinder (7). The opening of the installation cylinder (7) is provided with an installation step (71) that matches the top pressure plate (15). An expansion block (72) is installed on one side of the installation step (71). The expansion block (72) is annular and fits around the pouch (11). An expansion cavity (73) is provided inside the expansion block (72). An expansion membrane (74) is provided on the side of the expansion cavity (73) near the pouch (11). 73) The expansion tube (75) is connected to the tank (51). The connection between the expansion tube (75) and the tank (51) is located on the side wall of the tank (51) and at the maximum stroke near the movable block (52) and away from the delivery pipe (6). The expansion tube (75) is connected to the inside of the tank (51) so that the compressed gas in the tank (51) is filled into the expansion cavity (73). Under the action of the compressed gas pressure, the expansion membrane (74) bulges out towards the side of the bag (11) and abuts against the side wall of the top pressure plate (15) to clamp and lock the top pressure plate (15).

9. A stacked telescopic anti-bending airbag according to claim 8, characterized in that: The vent pipe (2) is connected to an exhaust pipe (22), which is located between the second switch valve (21) and the three-way connector (3). The exhaust pipe (22) is equipped with a third switch valve (23).

10. A stacked telescopic anti-bending airbag according to claim 8, characterized in that: The tank (51) is provided with a safety valve (54) and a connecting pipe (55). The connecting pipe (55) is located at the end of the tank (51) away from the conveying pipe (6), and the safety valve (54) is located at the end of the tank (51) close to the conveying pipe (6).

Images