Rapid inflation device for automobile seat and gas supporting system

Abstract

The invention discloses a quick inflation device for an automobile seat and a gas supporting system, which comprises a shell, a gas storage bag and an extrusion bag, a pressurization space is defined in the shell, the extrusion bag is suitable for extruding the gas storage bag, and the extrusion bag and the gas storage bag are both accommodated in the pressurization space; and in the pressurizing space, the internal air pressure of the air storage bag is increased in response to the inflating and extruding operation of the extruding air bag, and when the air storage bag communicates with the air supporting system, the air storage bag is extruded and pushed by the extruding air bag to rapidly fill the air supporting system with air. The air storage air bag is extruded and inflated through the extrusion air bag, and compared with an existing mode that direct inflation of a single air bag depends on an air supply source, the response speed is higher. When emergency situations such as lateral collision and sharp turning happen to a vehicle or a passenger needs to rapidly adjust the supporting state of the seat after getting on the vehicle, the extrusion air bag can be rapidly inflated, and extrusion acting force can be applied to the air storage air bag.

Description

Technical Field

[0001] The present invention relates to the technical field of inflation devices, and in particular to a rapid inflation device for a car seat and a gas support system. Background Art

[0002] With the booming automotive industry, consumers are increasingly demanding greater comfort, safety, and intelligence in their car seats. To enhance the driving experience, inflatable airbags, such as side and back airbags, are increasingly being used in car seats. Rapid inflation of these airbags provides dynamic support for the occupants, effectively reducing body sway during cornering, acceleration, deceleration, and bumpy rides, enhancing ride stability and safety. As the core component supplying air to these car seats, the performance of the rapid inflation device directly impacts the effectiveness of the seat's support function. Traditional rapid inflation devices for car seats typically operate independently, lacking a coordinated mechanism. These devices inflate and supply air to each airbag individually, which not only takes up considerable space, increases the complexity of the seat's internal structure, and complicates installation, but also fails to fully utilize the spatial relationships and pressure transmission principles between the airbags to improve air supply efficiency.

[0003] Existing vehicle seat side airbag inflation systems typically employ either single-bag direct inflation or electronically controlled dual-bag inflation. Single-bag inflators inflate the airbag directly from an air supply. This reliance on a direct air supply has significant limitations in terms of response speed and inflation efficiency during emergencies such as side collisions or sharp turns. This makes it difficult to achieve sufficient airbag inflation quickly, hindering effective protection for vehicle occupants. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a rapid inflation device for a car seat and a gas support system.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A rapid inflation device for a gas support system, suitable for a car seat, comprising: a housing defining a pressurized space therein; an air reservoir bag adapted to be in fluid communication with the gas support system; and an extrusion air bag adapted to extruding the air storage bag, wherein both the extrusion air bag and the air storage bag are accommodated in the pressurized space; Among them, in the pressurized space, the internal air pressure of the air storage bag increases in response to the inflation and squeezing operation of the squeezing air bag, and when the air storage bag and the gas support system are connected, the air storage bag quickly fills the gas into the gas support system under the squeezing and pushing of the squeezing air bag.

[0006] Furthermore, the pressurized space is configured to have at least one pressurized state with a constant volume, and the shell is a rigid shell or a flexible shell.

[0007] Furthermore, in the pressurized state, the pressurized space is configured as a rigid space, and its volume remains constant, so that the squeeze air bag can stably apply squeeze force to the air storage air bag.

[0008] Furthermore, the extrusion air bag and the air storage air bag are separated from each other, and the extrusion air bag is configured to apply force to the extrusion air bag in one or more directions.

[0009] Furthermore, a partition is arranged between the extrusion air bag and the air storage air bag, and the extrusion air bag applies an extrusion force to the extrusion air bag through the partition.

[0010] Furthermore, there is a joint between the extrusion air bag and the air storage air bag, and the extrusion air bag and the air storage air bag are combined into one through the joint.

[0011] Furthermore, when the air pressure in the air storage bag reaches a first pressure value, the squeeze air bag is inflated so that the air pressure in the air storage bag reaches a second pressure value, and the second pressure value is greater than the first pressure value.

[0012] Furthermore, the gas support system is at least one of a back airbag, a side airbag, and a seat airbag of a car seat.

[0013] Furthermore, the air storage bag has a first air inlet pipe and a first air outlet pipe, the extrusion air bag has a first air inlet pipe, and the diameter of the first air outlet pipe exceeds 2.5 mm.

[0014] A rapid inflation device for a gas support system, suitable for a car seat, comprising: a housing defining a pressurized space therein; a first air bag adapted to be in fluid communication with the gas support system; and a second air bag adapted to be in fluid communication with the gas support system, wherein the second air bag and the first air bag are accommodated in the pressurized space in a mutually compressive manner to alternately be in fluid communication with the gas support system during at least a first period and a second period; In which, during the first cycle, the first air bag is configured as an air storage air bag, and the second air bag is configured as an extrusion air bag; during the second cycle, the second air bag is configured as an air storage air bag, and the first air bag is configured as an extrusion air bag; in the pressurized space, the internal air pressure of the air storage air bag increases in response to the inflation and extrusion operation of the extrusion air bag, and when the air storage air bag and the gas support system are connected, the air storage air bag quickly fills the gas into the gas support system under the extrusion and push of the extrusion air bag.

[0015] Furthermore, after the first air bag completes filling the gas support system with gas under the compression of the second air bag, the first air bag is re-inflated so that it squeezes the second air bag to increase the air pressure of the second air bag, so that the second air bag is converted into an air storage air bag and enters the second cycle.

[0016] A car seat has a gas support system, wherein the gas support system has the above-mentioned rapid inflation device.

[0017] Due to the adoption of the above technical solution, the present invention has the following beneficial effects: 1. This invention inflates the air storage bag by squeezing the air bag, offering a faster response than existing methods that rely on a gas supply for direct inflation of a single air bag. In emergencies such as side collisions and sharp turns, or when passengers need to quickly adjust their seat support after boarding, the squeezing air bag rapidly inflates and applies a squeezing force to the air storage bag, rapidly increasing the internal pressure of the air storage bag. This rapidly fills the air support system (such as the back, side, and seat airbags of the vehicle seat) with gas. This allows the airbag to be fully inflated in a very short time, providing effective protection for vehicle occupants or meeting passengers' needs for quick seat comfort adjustment.

[0018] 2. This invention also uses the first and second air bags to alternately function as storage and squeeze bags during different cycles. The pressure generated by the squeeze bag's expansion propels the gas within the storage bag to rapidly fill the vehicle seat's gas support system. Compared to traditional single-bag inflation methods, this device achieves a continuous and efficient supply of gas, significantly shortening the inflation time of the vehicle seat's gas support system. This device can meet the seat's need for rapid gas filling in a fraction of the time, significantly improving the user experience. For example, when a user adjusts the seat's support, inflation can be completed quickly, eliminating the need for prolonged waiting.

[0019] 3. The present invention employs a combination of detachable stacking, partition stacking, or fixed connection between the extrusion bag and the storage bag. These designs make the entire rapid inflation device more compact and space-saving. Furthermore, the pressurization space utilizes a housing with removable side panels, facilitating installation and removal and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] Figure 1 It is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 It is a side view of the present invention.

[0023] Figure 3 This is the first cross-sectional view of the present invention.

[0024] Figure 4 It is a structural explosion diagram of the present invention.

[0025] Figure 5 This is a structural diagram of Example 5 of the present invention.

[0026] Figure 6 This is a second cross-sectional view of the present invention.

[0027] Figure 7 It is a structural diagram of the first embodiment of the air storage bag assembly of the present invention.

[0028] Figure 8 It is a structural diagram of a second embodiment of the air storage bag assembly of the present invention.

[0029] Figure 9 It is a structural diagram of the third embodiment of the air storage bag assembly of the present invention.

[0030] Reference numerals: In the figure, 100. Pressurized space; 110. Shell; 120. Mounting side panel; 121. Positioning hole; 111. Positioning groove; 200. Air storage bag; 210. First air outlet pipe; 220. First air inlet pipe; 300. Extrusion air bag; 310. Second air outlet pipe; 320. Second air inlet pipe; 400. Partition; 500. Hole; 600. First air bag; 700. Second air bag; 800. Joint. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of the present invention generally described and illustrated in the accompanying drawings can be arranged and designed in a variety of different configurations. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0033] Unless otherwise defined, technical or scientific terms used in this patent document shall have the ordinary meanings understood by persons of ordinary skill in the art to which this invention belongs. The terms "first," "second," and similar expressions used in the specification and claims of this invention do not denote any order, quantity, or importance, but are merely used to distinguish one component from another. Similarly, terms such as "a," "an," or "the" do not denote a limitation of quantity, but rather denote the presence of at least one. Terms such as "include" or "comprising" mean that the elements or objects preceding the phrase "include" or "comprising" include the elements or objects listed after the phrase and their equivalents, and do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used solely to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. These terms are used solely to facilitate the description of the invention and to simplify the description. They are not intended to indicate or imply that the device or component referred to must have, be constructed, or operate in a specific orientation, and are not to be construed as limitations on the invention.

[0034] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0035] The following describes some embodiments of the present invention in detail with reference to the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0036] Example 1: See also Figures 1 to 3The present invention discloses a rapid inflation device for a vehicle seat and gas support system, comprising a housing 110, an air storage bag 200, and an extrusion bag 300 disposed within the housing 110. The housing 110 is the core support structure of the entire device, defining a pressurized space 100 within the housing. The shape and size of the pressurized space 100 are precisely designed based on the interior space of the seat and the shape and size of the air storage bag assembly 200. The pressurized space 100 contains: an air storage bag 200 adapted for fluid communication with the gas support system; and an extrusion bag 300 adapted to compress the air storage bag 200. Within the pressurized space 100, the internal pressure of the air storage bag 200 increases in response to the inflation and extrusion of the extrusion bag 300. When the air storage bag 200 is connected to the gas support system, the air storage bag 200 rapidly fills the gas support system with gas under the pressure of the extrusion bag 300. In this embodiment, the pressurized space 100 is a specific area defined within the housing 110 of the rapid inflation device. This area accommodates the air storage bag 200 and the squeeze bag 300. When the squeeze bag 300 is inflated and squeezed, the air storage bag 200 is squeezed within this pressurized space 100, causing the internal air pressure to increase. The presence of the pressurized space 100 effectively increases the internal pressure of the air storage bag 200 when squeezed. Consequently, when the air storage bag 200 is connected to the gas support system, gas can be quickly and effectively filled into the gas support system, achieving rapid inflation.

[0037] It should be noted that in this embodiment, the pressurized space 100 is configured to have at least one pressurized state with a constant volume, and the shell 110 is a rigid shell or a flexible shell. In the pressurized state, the pressurized space 100 is configured as a rigid space, and its volume remains constant, so that the extrusion air bag 300 can stably apply an extrusion force to the air storage bag. The rigid shell has high strength and hardness and is not easy to deform. In the pressurized state, the rigid shell can form a rigid space by virtue of its own structural characteristics, resisting the impact of internal pressure changes, thereby ensuring that the volume of the pressurized space remains constant. The flexible shell is relatively soft and has a certain degree of deformability. It is easy to change shape when subjected to external force. However, in the pressurized state, the hardness of the flexible shell is sufficient to prevent it from deforming to form a rigid space, thereby ensuring that the volume of the pressurized space remains constant.

[0038] See also Figure 4 、 Figure 6In this embodiment, the housing 110 has a flat rectangular structure. This design fully utilizes limited space, ensuring the device can be smoothly installed inside the seat without interfering with other functional components of the seat. For example, in some small sedans, where seat space is limited, a flat rectangular housing 110 can minimize seat space occupation, ensuring seat comfort and functionality. If the seat structure permits, in other embodiments, the housing 110 may also have an elliptical cross-section. A circular or elliptical structure helps optimize the layout of the internal airbag components and reduce gas flow resistance. This structure allows for smoother gas flow between the airbags, improving gas inflation and release efficiency, resulting in faster inflation of the side airbags and providing more immediate safety protection for vehicle occupants. Mounting side panels 120 are located on either side of the housing 110. These mounting side panels 120 are provided with positioning holes 121, and the housing 110 is provided with positioning grooves 111 corresponding to the positioning holes 121. This positioning structure allows the device to be accurately and quickly positioned within the designated location within the seat during installation, ensuring stable and precise connections between the device and other seat components. During actual installation, the operator can align positioning hole 121 with positioning slot 111 and then secure mounting side panel 120 to the seat using appropriate fasteners (such as bolts, nuts, etc.), thereby completing the installation of the entire device. Mounting side panel 120 is also provided with a hole 500 for the passage of the air pipe. This hole 500 is designed to facilitate the placement and connection of the air pipe, allowing it to smoothly connect to the air bag within the device, as well as the external air supply and side airbags, ensuring proper gas flow.

[0039] The air storage bag 200 is a key component of the entire device for storing compressed gas. It is arranged in the pressurized space and cooperates with the extrusion air bag 300 to achieve the function of rapid inflation. The air storage bag 200 is equipped with a first air outlet pipe 210 and a first air inlet pipe 220. The first air outlet pipe 210 is suitable for fluid communication with the gas support system, and the first air inlet pipe 220 is connected to an external air supply source for filling external gas into the interior of the air storage bag 200. A solenoid valve is provided on the first air inlet pipe 220. In this embodiment, the solenoid valve adopts a normally closed control mode. This normally closed control mode can effectively prevent gas leakage, ensure that the air storage bag 200 can remain sealed when inflation is not required, and ensure the stability of the internal gas pressure. The squeeze bag 300 is a component used to provide squeezing force and is also located within the pressurized space. The squeeze bag 300 and the air storage bag 200 are configured to independently obtain and store gas from a gas supply source. This independent inflation design allows the two bags to be inflated and pressure-maintained separately based on actual needs, improving the device's flexibility and reliability. In this embodiment, the squeeze bag 300 is equipped with a second air inlet pipe 320, which is connected to an external air supply and is used to independently inflate the squeeze bag 300. During inflation, when the squeeze bag 300 reaches a predetermined pressure, inflation ceases and the squeeze bag 300 remains in a pressure-maintaining state.

[0040] The operating principle of this embodiment is as follows: During the actual inflation process, an external gas supply source fills the air storage bag 200 with gas through the first air inlet pipe 220. When the air pressure inside the air storage bag 200 reaches a first pressure value, the solenoid valve closes, and the inflation process stops. The air storage bag 200 is now in a pressure-maintaining state. The squeezing air bag 300 is then inflated until the air pressure in the air storage bag 200 reaches a second pressure value, which is greater than the first pressure value. As a result, during inflation, the air storage bag 200, squeezed by the squeezing air bag 300, rapidly fills the gas support system with gas.

[0041] In this embodiment, the extrusion air bag 300 and the air storage bag 200 are separated from each other, and the extrusion air bag is configured to apply force to the extrusion air bag in one or more directions. The following is a specific embodiment of the positional relationship between the air storage bag and the extrusion air bag: Example: 2: See also Figure 7 This embodiment differs from Embodiment 1 in that the squeezing bag 300 is detachably stacked above the air storage bag 200 to apply a squeezing force to the air storage bag 200 within the pressurized space 100. This detachable stacking arrangement provides flexibility. During installation, maintenance, and replacement of the device, the squeezing bag 300 can be easily separated from the air storage bag 200, facilitating inspection, repair, or replacement of a single bag, thereby reducing maintenance costs and work difficulty.

[0042] Example 3: See also Figure 8 This embodiment differs from Example 1 in that a partition 400 is disposed between the extrusion bag 300 and the air storage bag 200. The extrusion bag 300 is stacked on top of the air storage bag 200 via the partition 400. This uniformly distributes the extrusion force applied to the air storage bag within the pressurized space 100. The partition 400 provides a certain degree of isolation and cushioning, preventing the two air bags from direct contact during inflation or extrusion, which could cause excessive wear or damage.

[0043] Example 4: See also Figure 9 The difference between this embodiment and embodiment 1 is that in this embodiment, there is a joint 800 between the extrusion air bag 300 and the air storage air bag 200, and the extrusion air bag 300 and the air storage air bag 200 are combined into one body through the joint 800. In order to stably transmit the extrusion force applied to the air storage air bag in the pressurized space 100. This fixing method allows the extrusion air bag 300 and the air storage air bag 200 to form a relatively stable overall structure. During the driving process of the vehicle, the relative position relationship between the two air bags can be better maintained, the displacement or looseness caused by vibration or shaking can be reduced, and the reliability and stability of the device are improved. In this embodiment, the internal space of the air storage air bag 200 is separated by gas from the extrusion air bag 300. This gas separation design ensures that the two air bags can be inflated and deflated independently, avoids mutual interference between the gases, and ensures the normal operation of the device.

[0044] It should be noted that, in actual applications, the squeeze bag and the air storage bag can be arranged in a manner such that their sides abut against each other within the pressurized space, i.e., the squeeze bag and the air storage bag are placed side by side within the pressurized space, with their sides in close contact. Alternatively, the squeeze bag can be designed to surround and envelop the air storage bag, i.e., the squeeze bag is formed into a ring or sleeve-like shape, with the air storage bag placed inside the squeeze bag. The positional relationship between the air storage bag and the squeeze bag only needs to ensure that the squeeze bag can squeeze the air storage bag within the pressurized space, and no further details will be given here.

[0045] Furthermore, in this embodiment, the diameter of the first air outlet pipe 210 is greater than 2.5 mm. In actual applications, a suitable pipe diameter can be selected according to specific air supply requirements, such as 3 mm, 3.5 mm or 4 mm. A larger pipe diameter can effectively reduce the gas flow resistance, increase the gas circulation speed, and meet the requirements of fast air supply. When the vehicle collides sideways or makes a sharp turn, the device needs to be able to quickly inflate the side airbags to provide timely safety protection. At this time, the larger air pipe diameter can ensure that the gas can flow quickly and smoothly from the air supply source into the airbag, and from the airbag into the side airbag, greatly shortening the inflation time and improving the response speed of the device.

[0046] Furthermore, the air storage bag 200 and the extrusion bag 300 are made of TPU components, rubber components, or composite materials. Air bags made of different materials have their own characteristics and advantages.

[0047] Example 5: See also Figure 5 This embodiment differs from Example 1 in that the core components of the rapid inflation device in this embodiment include a housing 110, a first airbag 600, and a second airbag 700. A pressurized space is formed within the housing 110, providing a workspace for the first and second airbags 600, 700. The first airbag 600 is fluidically connected to the gas support system and external gas supply via a third outlet pipe 610 and a third inlet pipe 620, while the second airbag 700 is fluidically connected via a fourth outlet pipe 710 and a fourth inlet pipe 720. In actual operation, the electronically controlled solenoid valve gas circuit switching is used to achieve precise control of the periodic inflation and deflation of the first air bag 600 and the second air bag 700, thereby completing the rapid filling of the gas support device. During the first cycle, the first air bag 600 acts as an air storage bag, and the second air bag 700 acts as an extrusion air bag. At this time, the gas stored in the first air bag 600 is connected to the gas support system through the third air outlet pipe 610. Under the extrusion effect generated by the inflation of the second air bag 700, the gas in the first air bag 600 is quickly squeezed into the gas support system. As the gas is continuously discharged, the gas inside the first air bag 600 is gradually exhausted, and the air pressure value drops to 0. As the air supply source continues to supply air, the internal air pressure of the second air bag 700 continues to rise. When the set first air pressure value is reached, the air supply source stops supplying air, and the second air bag 700 maintains pressure. At this time, the system enters the second cycle. During the second cycle, the second airbag 700 is converted into a storage airbag, and the first airbag 600 is transformed into a compression airbag. The air supply source inflates the first airbag 600 through the third air inlet pipe 620. The inflated first airbag 600 compresses the second airbag 700, increasing the internal pressure of the second airbag 700. When the internal pressure of the second airbag 700 reaches the set second pressure value, the air supply source stops supplying air, and the first airbag 600 maintains pressure, preparing for the next round of air supply to the gas support system. In this way, the first and second air bags 600 and 700 alternately function as storage and compression bags during the first and second cycles. By squeezing each other, they continuously and rapidly fill the vehicle seat's gas support system with gas, meeting the vehicle seat's need for rapid gas supply and enhancing passenger comfort and support. Throughout this operation, electronically controlled solenoid valves precisely control the timing and pressure of each bag's inflation and deflation, ensuring stable and efficient operation of the rapid inflation mechanism.

[0048] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A rapid inflation device for a gas support system, suitable for a car seat, characterized in that: include: a housing defining a pressurized space therein; an air storage bag adapted to be in fluid communication with the gas support system; as well as an extrusion air bag adapted to extruding the air storage bag, wherein both the extrusion air bag and the air storage bag are accommodated in the pressurized space; Among them, in the pressurized space, the internal air pressure of the air storage bag increases in response to the inflation and squeezing operation of the squeezing air bag, and when the air storage bag and the gas support system are connected, the air storage bag quickly fills the gas into the gas support system under the squeezing and pushing of the squeezing air bag.

2. The rapid inflation device according to claim 1, characterized in that: The pressurized space is configured to have at least one pressurized state with a constant volume, and the shell is a rigid shell or a flexible shell.

3. The rapid inflation device according to claim 2, characterized in that: In the pressurized state, the pressurized space is configured as a rigid space, and its volume remains constant, so that the squeeze air bag can stably apply squeeze force to the air storage bag.

4. The rapid inflation device according to claim 2 or 3, characterized in that: The extrusion air bag and the air storage air bag are separated from each other, and the extrusion air bag is configured to apply force to the extrusion air bag from one or more directions.

5. The rapid inflation device according to claim 2 or 3, characterized in that: A partition is arranged between the extrusion air bag and the air storage air bag, and the extrusion air bag applies an extrusion force to the extrusion air bag through the partition.

6. The rapid inflation device according to claim 2 or 3, characterized in that: There is a joint portion between the extrusion air bag and the air storage air bag, and the extrusion air bag and the air storage air bag are combined into one through the joint portion.

7. The rapid inflation device according to claim 1, characterized in that: When the air pressure in the air storage bag reaches a first pressure value, the squeeze air bag is inflated so that the air pressure in the air storage bag reaches a second pressure value, and the second pressure value is greater than the first pressure value.

8. The rapid inflation device according to claim 1, characterized in that: The gas support system is at least one of a back airbag, a side airbag, and a seat airbag of a car seat.

9. The rapid inflation device according to claim 1, characterized in that: The air storage bag has a first air inlet pipe and a first air outlet pipe, the extrusion air bag has a first air inlet pipe, and the diameter of the first air outlet pipe exceeds 2.5 mm.

10. A rapid inflation device for a gas support system, suitable for a car seat, characterized in that: include: a housing defining a pressurized space therein; a first air bag adapted to be in fluid communication with the gas support system; as well as a second air bag adapted to be in fluid communication with the gas support system, wherein the second air bag and the first air bag are accommodated in the pressurized space in a mutually compressive manner to alternately be in fluid communication with the gas support system during at least a first period and a second period; In which, during the first cycle, the first air bag is configured as an air storage air bag, and the second air bag is configured as an extrusion air bag; during the second cycle, the second air bag is configured as an air storage air bag, and the first air bag is configured as an extrusion air bag; in the pressurized space, the internal air pressure of the air storage air bag increases in response to the inflation and extrusion operation of the extrusion air bag, and when the air storage air bag and the gas support system are connected, the air storage air bag quickly fills the gas into the gas support system under the extrusion and push of the extrusion air bag.

11. The rapid inflation device according to claim 10, characterized in that: During the first cycle, after the first air bag completes the filling of the gas support system with gas under the compression of the second air bag, the first air bag is re-inflated so that it squeezes the second air bag to increase the air pressure of the second air bag, so that the second air bag is converted into an air storage air bag and enters the second cycle.

12. A car seat having a gas support system, characterized in that: The gas support system comprises the rapid inflation device according to any one of claims 1 to 11.

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