Air bag assembly and pneumatic comfort system

Abstract

The embodiment of the utility model relates to the technical field of massage devices, in particular to an air bag assembly and a pneumatic comfort system.The air bag assembly comprises a first bag body, an air pipe and an air guiding piece, the first bag body is provided with a first inflation cavity, and the air pipe is used for guiding air into the first inflation cavity of the first bag body; the air guide part is used for orientating air flow when air flows into the first inflation cavity of the first bag body, a first guide mechanism and a second guide mechanism are arranged on the air guide part, the first guide mechanism enables the air flow to face along the center of the first inflation cavity, and the second guide mechanism enables the air flow to deviate from the center of the first inflation cavity. According to the air bag assembly, the air guide piece is arranged to orient the air flow introduced into the air bag inflation cavity by the air pipe, so that part of the air flow deviates from the center of the air bag inflation cavity, vortex is reduced, and then air bag inflation noise is reduced. The pneumatic comfort system adopts the air bag assembly, noise generated when the air bag is inflated is small, and the user experience feeling is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic comfort system technology, and in particular to an air bag assembly and a pneumatic comfort system. Background Technology

[0002] In pneumatic massage devices, such as massage chairs, the inflation and deflation of air bags in the pneumatic massage system causes the air bags to expand and contract, thereby achieving a massage function for the human body. A pneumatic massage system typically includes an air source, an air distribution device, and air bags. The air bags are connected to the air distribution device via air tubes, and the air distribution device is connected to the air source. The air source supplies air to the air bags through the air distribution device, which controls the inflation and deflation of the air bags.

[0003] Currently, air bags and air tubes are usually directly connected. The air tube with a uniform diameter extends directly into the inflation chamber of the air bag, and the opening of the air tube faces the center of the air bag. The airflow is constant when it enters the air bag from the air tube. However, this method often causes the airflow to form vortices inside the air bag, resulting in loud noise during inflation and affecting the user's massage experience. Utility Model Content

[0004] In view of the above problems, the present invention provides an air bag assembly and a pneumatic comfort system, which overcomes or at least partially solves the above problems.

[0005] To solve the above-mentioned technical problems, the present invention provides a technical solution as follows: An air bag assembly is provided, comprising a first bag body, an air tube, and an air guide. The first bag body has a first inflation chamber, the air tube is used to guide gas into the first inflation chamber of the first bag body, and the air guide is used to orient the airflow when the gas flows into the first inflation chamber of the first bag body. The air guide has a first guiding mechanism and a second guiding mechanism, wherein the first guiding mechanism directs the airflow along the center of the first inflation chamber, and the second guiding mechanism deviates the airflow from the center of the first inflation chamber.

[0006] Optionally, the first guiding mechanism includes a first air guide hole, which is oriented along the center of the first inflation chamber.

[0007] Optionally, the second guiding mechanism includes a second air guide hole, which is offset from the center orientation of the first inflation chamber.

[0008] Optionally, the second air guide hole is oriented along the inner wall of the first air filling chamber.

[0009] Optionally, the air guide includes an air inlet section and an air outlet section connected sequentially along the air inlet direction. The air inlet section is connected to the air pipe. The first guide mechanism and the second guide mechanism are disposed in the air outlet section. The air outlet section has an air outlet channel communicating with the first guide mechanism and the second guide mechanism. The air outlet channel has a flared pipe section whose diameter gradually increases along the air inlet direction.

[0010] Optionally, the air guide includes an air inlet section and an air outlet section connected sequentially along the air inlet direction. The air inlet section extends out of the first inflation chamber and is connected to the air pipe, while the air outlet section is located inside the first inflation chamber.

[0011] Optionally, the air guide is disposed in the first inflation chamber, and the air tube extends into the first inflation chamber and is connected to the air guide.

[0012] Optionally, the air guide is formed by the end section of the air tube.

[0013] Optionally, the air bag assembly further includes a plurality of second bags, which are sequentially connected to the first bag along the main inflation deformation direction.

[0014] To solve the above-mentioned technical problems, another technical solution adopted by this utility model is: to provide a pneumatic comfort system, including an air source, a gas distribution device and the above-mentioned air bag assembly, wherein the air source supplies air to the air bag assembly through the gas distribution device.

[0015] The beneficial effects of this utility model embodiment are: the air bag assembly of this utility model is provided with an air guide to orient the airflow introduced into the air bag inflation chamber by the air tube, so that part of the airflow deviates from the center of the air bag inflation chamber, reducing the generation of eddies, and thus reducing the generation of air bag inflation noise.

[0016] Furthermore, the air guide is designed with a flared structure, meaning that the diameter of the air outlet gradually increases along the air intake direction, which slows down the flow rate when the air enters the air bag inflation chamber, thereby further reducing eddies and the noise caused by eddies.

[0017] The pneumatic comfort system of this invention uses the above-mentioned air bag assembly, which generates less noise when the air bag is inflated, effectively improving the user experience. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of an air bag assembly with a single-layer bag body provided in an embodiment of the present invention;

[0020] Figure 2 This is an exploded view of an air bag assembly with a single-layer bag body provided in an embodiment of this utility model;

[0021] Figure 3 This is a top-view perspective structural diagram of an air bag assembly with a single-layer bag body provided in an embodiment of the present utility model.

[0022] Figure 4 This is a cross-sectional view of the first bag body of the air bag assembly with a single-layer bag body provided in this embodiment of the present invention;

[0023] Figure 5 This is a perspective view of the air guide provided in this embodiment of the utility model from a first perspective.

[0024] Figure 6 yes Figure 5 A sectional view after being cut along section line AA;

[0025] Figure 7 This is a perspective view of the air guide provided in this embodiment of the utility model from a second perspective.

[0026] Figure 8 This is a three-dimensional structural diagram of an air bag assembly with a multi-layered bag body provided in an embodiment of the present invention;

[0027] Figure 9 This is an exploded view of an air bag assembly with a multi-layered bag body provided in an embodiment of this utility model;

[0028] Figure 10 This is a cross-sectional view of the first and second bag bodies of the air bag assembly with multi-layered bags provided in this embodiment of the utility model. Detailed Implementation

[0029] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0031] Please see Figure 1 and Figure 2 The air bag assembly 100 provided in this embodiment of the present invention includes a first bag body 1, an air guide 2, and an air tube 3. The first bag body 1 has a first inflation chamber 10, and the air tube 3 is in fluid communication with the first inflation chamber 10 of the first bag body 1. The air tube 3 is used to guide gas into the first inflation chamber 10 of the first bag body 1 during inflation and to guide gas out of the first inflation chamber 10 of the first bag body 1 during deflation. The air guide 2 is disposed on the air tube 3, and the air tube 3 is connected to the first inflation chamber 10 of the first bag body 1 through the air guide 2. The air guide 2 is used to orient the airflow when gas flows into the first inflation chamber 10 of the first bag body 1.

[0032] For the first bag 1 mentioned above, please refer to Figure 3 and Figure 4 The first bag body 1 includes a first membrane 11 and a second membrane 12, with their peripheries connected. The interconnected first membrane 11 and second membrane 12 enclose a first inflation cavity 10, which has a center O. For a regular first inflation cavity 10 formed by the first membrane 11 and second membrane 12, such as a circular air bag formed by the first membrane 11 and second membrane 12 in a top view, the center O of the first inflation cavity 10 is located at the midpoint between the first membrane 11 and second membrane 12. The first membrane 11 and second membrane 12 can be integrally formed, or the first membrane 11 and second membrane 12 can be two independent membranes with their peripheries welded using high-frequency welding.

[0033] When the first bag 1 is inflated, gas enters the first inflation chamber 10. Due to the air pressure, the first diaphragm 11 and the second diaphragm 12 separate from each other in the central region, and the first bag 1 expands outward to provide effective support or a squeezing massage effect. When the first bag 1 is deflated, gas flows out from the first inflation chamber 10 through the air tube 3, the first diaphragm 11 and the second diaphragm 12 move closer to each other, and the first bag 1 contracts inward.

[0034] In some embodiments, a massage head 13 is also provided on the top of the first bag 1. When the first bag 1 is inflated, the massage head 13 protrudes outward from the surface of the first bag 1 to provide more concentrated pressure to the massage area, simulating finger acupressure massage.

[0035] It should be noted that the first bag body 1 can be made of one or more flexible materials, including but not limited to polyester fiber, nylon, or rubber, such as thermoplastic polyurethane rubber (TPU). Preferably, the material of the first bag body 1 is thermoplastic polyurethane rubber (TPU).

[0036] Regarding the aforementioned air guide 2, when gas flows into the first inflation chamber 10 of the first bag body 1, specifically, a portion of the airflow flows into the first inflation chamber 10 along the center O direction, and a portion of the airflow deviates from the center O direction of the first inflation chamber 10 before flowing into the first inflation chamber 10. The air guide 2 is provided with a first guiding mechanism 23 and a second guiding mechanism 24. The first guiding mechanism 23 directs a portion of the airflow flowing into the first inflation chamber 10 of the first bag body 1 along the center O direction of the first inflation chamber 10, while the second guiding mechanism 24 directs a portion of the airflow flowing into the first inflation chamber 10 of the first bag body 1 away from the center O direction of the first inflation chamber 10, for example, towards the inner wall of the first inflation chamber 10.

[0037] In the preferred embodiment, for the above-mentioned air guide 2, please refer to... Figure 3 , Figures 5 to 7 The air guide 2 includes an air inlet section 21 and an air outlet section 22. The air inlet section 21 is used to connect to the air pipe 3. The air inlet section 21 and the air outlet section 22 are connected sequentially along the air inlet direction x. The first guide mechanism 23 and the second guide mechanism 24 are disposed in the air outlet section 22. During inflation, the gas enters the first inflation chamber 10 of the first bag body 1 through the air pipe 3, the air inlet section 21, and the air outlet section 22 in sequence. When the airflow passes through the air outlet section 22, it is directed by the first guide mechanism 23 and the second guide mechanism 24 to flow into the first inflation chamber 10.

[0038] In some embodiments, the intake section 21 is provided with an intake channel 210 and an intake hole 211. The intake hole 211 is located on the end face of the intake section 21 away from the exhaust section 22. The intake hole 211 is connected to one end of the intake channel 210. The intake channel 210 extends in a straight line along the intake direction x. The other end of the intake channel 210 is connected to the exhaust section 22.

[0039] In some embodiments, the end of the air intake section 21 located outside the first inflation chamber 10 is provided with a guide surface 213. The guide surface 213 is an inclined surface whose outer diameter gradually decreases in the direction opposite to the air intake direction x, and the guide surface 213 ends at the end of the air intake hole 211. The guide surface 213 is used to guide the air pipe 3 to quickly and accurately connect with the air intake section 21.

[0040] In other embodiments, the air outlet section 22 is provided with an air outlet channel 220. The first guide mechanism 23 and the second guide mechanism 24 are both connected to the air outlet channel 220. The air outlet channel 220 is connected to the other end of the air inlet channel 210 and extends linearly along the air inlet direction x. When the inflation gas reaches the air guide member 2 through the air pipe 3, the gas enters the air inlet channel 210 from the air inlet hole 211 and flows along the air inlet direction x to the air outlet channel 220. Then, it is directed into the first inflation chamber 10 by the first guide mechanism 23 and the second guide mechanism 24. Specifically, when the gas flows into the first inflation chamber 10 from the air outlet channel 220 through the first guide mechanism 23 and the second guide mechanism 24, the gas flows into the first inflation chamber 10 in portions, respectively, through the first guide mechanism 23 and the second guide mechanism 24. The first guide mechanism 23 directs a portion of the airflow guided by it to face the center O of the first inflation chamber 10, while the second guide mechanism 24 directs a portion of the airflow guided by it to deviate from the center O of the first inflation chamber 10.

[0041] In some embodiments, the first guiding mechanism 23 includes a first air guide hole 231. The first air guide hole 231 is located on the end face of the air outlet section 22 away from the air inlet section 21 and is connected to the air outlet channel 220. The first air guide hole 231 is oriented along the center O of the first inflation chamber 10, so that part of the inflation airflow passes through the first air guide hole 231 and forms an air outlet airflow L1 flowing towards the central region of the first inflation chamber 10, causing the first bag 1 to inflate rapidly. Preferably, the first air guide hole 231 and the air inlet hole 211 are coaxially arranged along the air inlet direction x, so that the airflow can flow smoothly along the air inlet direction x towards the central region of the first inflation chamber 10.

[0042] In some embodiments, the second guiding mechanism 24 includes a second air guide hole 241. The second air guide hole 241 is formed on the side wall of the air outlet section 22 that is offset from the air inlet direction x and communicates with the air outlet channel 220. That is, the second air guide hole 241 is offset from the center O of the first inflation chamber 10, so that part of the airflow that enters through the second air guide hole 241 deviates from the center O, thereby avoiding the formation of vortices and reducing inflation noise. Specifically, the second air guide hole 241 can be formed biased towards the inner side wall of the first inflation chamber 10, so that part of the airflow that enters through the second air guide hole 241 flows along the inner side wall of the first inflation chamber 10, reducing the generation of vortices. The number of second air guide holes 241 can be set to one or more. In a preferred embodiment, the number of second air guide holes 241 is multiple. Multiple second air guide holes 241 are respectively disposed on the two side walls of the air outlet section 22. The second air guide holes 241 located on the two side walls of the air outlet section 22 are symmetrically or asymmetrically disposed about the air inlet direction x. Multidirectional airflow such as air outlet airflow L2 and air outlet airflow L2' are formed through the second air guide holes 241.

[0043] It is understood that in some embodiments, the first guide mechanism 23 and the second guide mechanism 24 are not limited to the above-described structures, and may be other structures. For example, the first guide mechanism 23 may include a first air guide hole 231 and a first air guide plate, and the first air guide hole 231 is not arranged along the center O of the first inflation chamber 10. The first air guide plate is connected to the edge of the first air guide hole 231. The first air guide plate is used to guide the gas flowing out of the first air guide hole 231 so that the gas flows towards the central region of the first inflation chamber 10, so that the airflow passing through the first air guide hole 231 flows into the first inflation chamber 10 along the center O of the first inflation chamber 10. For example, the second guiding mechanism 24 may include a second air guide hole 241 and a second air guide plate. The second air guide hole 241 may be located at any position in the air outlet section 22. There may be one or more second air guide holes 241. The second air guide plate is connected to the edge of the second air guide hole 241. The second air guide plate is used to guide and disperse the gas flowing out of the second air guide hole 241, so that the airflow is diverted from the center O of the first inflation chamber 10, so that the airflow passing through the second air guide hole 241 flows into the first inflation chamber 10 in a direction that is deviated from the center O of the first inflation chamber 10, such as flowing along the inner wall of the first inflation chamber 10.

[0044] In some embodiments, the diameter of the outlet channel 220 gradually increases along the inlet direction x, or the outlet channel 220 has a flared section with a diameter that gradually increases along the inlet direction x, which helps the gas to slow down and diffuse evenly within the outlet section 22, reducing turbulence in the airflow within the air guide 2, thereby further reducing inflation noise. Figure 4 and Figure 5 In the example, the cross-sectional shape of the air outlet channel 220 is rectangular, and the cross-sectional shape of the air outlet channel 220 increases proportionally along the air intake direction x. The second air guide hole 241 is located on the sidewall of the air outlet channel 220. In other embodiments, the cross-sectional shape of the air outlet channel 220 can be other shapes such as trapezoidal or elliptical. The cross-sectional shape of the air outlet channel 220 can vary proportionally or disproportionately along the air intake direction x. For example, the air outlet channel 220 includes a flared section and a straight section, and the cross-sectional shape of the air outlet channel 220 can gradually expand along the air intake direction x and then remain unchanged. The distribution and shape of the second air guide hole 241 can also be adjusted accordingly to achieve a more precise airflow control effect.

[0045] It should be noted that the intake direction x can be a straight line or along a certain curve or broken line, depending on the design requirements and actual application scenarios.

[0046] In some embodiments, the outlet section 22 of the air guide 2 is located inside the first inflation chamber 10, and the inlet section 21 extends away from the outlet section 22 to the outside of the first inflation chamber 10 and connects to the air tube 3. Specifically, the inlet section 21 extends from the weld between the first diaphragm 11 and the second diaphragm 12, ensuring that the first air guide hole 231 faces the center O of the first inflation chamber 10. The inlet section 21 is connected between the first diaphragm 11 and the second diaphragm 12. The air guide 2 and the first bag body 1 can be integrally formed or welded together.

[0047] In a further preferred embodiment, a limiting boss 212 is provided in the connection area between the air intake section 21 and the air outlet section 22. The limiting boss 212 is used to limit and ensure that the air outlet section 22 is located in the first inflation chamber 10 and to prevent the air outlet section 22 from falling out of the first inflation chamber 10.

[0048] In some embodiments, the air guide 2 is disposed in the first inflation chamber 10, and the air tube 3 extends into the first inflation chamber 10 and is connected to the air guide 2.

[0049] In a further preferred embodiment, the air tube 3 is connected between the first diaphragm 11 and the second diaphragm 12, that is, the air tube 3 extends into the first inflation chamber 10 from the weld between the first diaphragm 11 and the second diaphragm 12, and a limiting structure similar to the limiting boss 212 can be provided on the air tube 3. The air tube 3 and the first bag body 1 can be integrally formed or welded.

[0050] In some other embodiments, the air guide 2 and the air tube 3 are integrally formed, and the air guide 2 is formed by the end section of the air tube 3, that is, the first guide mechanism 23 and the second guide mechanism 24 are formed on the end section of the air tube 3 that extends into the first inflation chamber 10 to form an air guide structure.

[0051] In other embodiments, please refer to Figures 8 to 10 The airbag assembly 100 of this utility model also includes a plurality of second bag bodies 4, each of which is provided with a second inflation chamber 40. The plurality of second bag bodies 4 are connected to the first bag body 1 along the main inflation deformation direction, which refers to the direction in which the bag body expands and rises when inflated. The second inflation chambers 40 of the plurality of second bag bodies 4 are in fluid communication with the first inflation chambers 10 of the first bag body 1. The arrangement of the first bag body 1 and the plurality of second bag bodies 4 enables the overall airbag assembly 100 to have a higher massage stroke.

[0052] Several second bags 4 are connected sequentially along the main direction of inflation deformation, with the bottom second bag 4 connected to the first bag 1. Adjacent second inflation chambers 40 are connected sequentially through an overflow channel, and the bottom second inflation chamber 40 is connected to the first inflation chamber 10 through another overflow channel. When the first bag 1 is inflated, gas enters the first inflation chamber 10, causing the first bag 1 to expand. At the same time, gas flows into the bottom second inflation chamber 40 and flows upward layer by layer, causing the several second bags 4 to inflate and expand sequentially, thereby achieving a higher stroke massage function.

[0053] In some embodiments, a massage head 41 is also provided on the top of the topmost second bag 4. When the first bag 1 and several second bags 4 are inflated, the massage head 41 protrudes outward from the surface of the topmost second bag 4 to achieve an acupressure massage effect.

[0054] In some embodiments, each second bag 4 includes two membranes, the peripheries of which are connected to form a second inflation cavity 40. It is understood that the two membranes of the second bag 4, adjacent second bags 4, and the second bag 4 and the first bag 1 can be integrally formed or welded using high-frequency welding, so that a plurality of second bags 4 are sequentially connected to the first bag 1 along the main inflation deformation direction.

[0055] It is understood that the air guide 2 and the air tube 3 can be connected to the first bag body 1, or connected to any second bag body 4, or the first bag body 1 and one or more second bag bodies 4 are each provided with a set of air guide 2 and air tube 3.

[0056] It should be noted that the second bag 4 can be made of one or more flexible materials, including but not limited to polyester fiber, nylon, or rubber, such as thermoplastic polyurethane rubber (TPU). The second bag 4 and the first bag 1 can be made of the same or different materials. Preferably, both the first bag 1 and the second bag 4 are made of thermoplastic polyurethane rubber (TPU).

[0057] The airbag assembly 100 provided in this embodiment of the invention includes an air guide 2 to orient the airflow introduced into the airbag inflation chamber by the air tube 3, causing some of the airflow to deviate from the center of the inflation chamber, reducing the generation of eddies, and thus reducing the noise generated during airbag inflation. Furthermore, the air guide 2 is designed with a flared structure, meaning the diameter of the air outlet channel 220 gradually increases along the air inlet direction x, or has a flared pipe section with a diameter gradually increasing along the air inlet direction x. This slows down the flow velocity of the airflow entering the inflation chamber, further reducing eddies and the noise caused by eddies.

[0058] This utility model also provides an embodiment of a pneumatic comfort system, which includes an air source, a gas distribution device, and the aforementioned air bag assembly 100. The air source supplies air to the air bag assembly 100 through the gas distribution device. The function and structure of the air bag assembly 100 can be found in the above embodiments and will not be repeated here. The air source may include an air pump, an air compressor, etc., and the gas distribution device may include an air valve, a fluid oscillator, etc., such as a solenoid valve. In some embodiments, the air source and the gas distribution device may be an integrated pump and valve structure. During operation, the gas distribution device controls the on / off supply of air between the air source and the air bag, as well as the inflation and deflation of the air bag.

[0059] The pneumatic comfort system of this utility model uses the above-mentioned air bag assembly 100. The noise generated when the air bag is inflated is small, which effectively improves the user experience.

[0060] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An airbag assembly characterized by, The airbag assembly comprises: a first bag body having a first inflation cavity; an air tube for introducing gas into the first inflation cavity of the first bag body; a gas guide for directing the flow of gas when the gas flows into the first inflation cavity of the first bag body; the gas guide has a first guide mechanism and a second guide mechanism, wherein the first guide mechanism directs the flow of gas towards the center of the first inflation cavity, and the second guide mechanism directs the flow of gas away from the center of the first inflation cavity.

2. The airbag assembly of claim 1, wherein, The first guide mechanism comprises a first gas guide hole directed towards the center of the first inflation cavity.

3. The airbag assembly of claim 1, wherein, The second guide mechanism comprises a second gas guide hole directed away from the center of the first inflation cavity.

4. The airbag assembly of claim 3, wherein, The second gas guide hole is directed towards the inner wall of the first inflation cavity.

5. The airbag assembly of claim 1, wherein, The gas guide comprises an air inlet section and an air outlet section connected in sequence in the air inlet direction, the air inlet section is connected with the air tube, the first guide mechanism and the second guide mechanism are arranged in the air outlet section, the air outlet section has an air outlet passage connected with the first guide mechanism and the second guide mechanism, and the air outlet passage has an expanding mouth tube section with a gradually expanding caliber in the air inlet direction.

6. The airbag assembly of claim 1, wherein, The gas guide comprises an air inlet section and an air outlet section connected in sequence in the air inlet direction, the air inlet section extends out of the first inflation cavity and is connected with the air tube, and the air outlet section is located in the first inflation cavity.

7. The airbag assembly of claim 1, wherein, The gas guide is arranged in the first inflation cavity, and the air tube extends into the first inflation cavity and is connected with the gas guide.

8. The airbag assembly of claim 1, wherein, The gas guide is composed of an end section of the air tube.

9. The airbag assembly of any of claims 1-8, wherein, The airbag assembly further comprises a plurality of second bag bodies, and the plurality of second bag bodies are connected in sequence to the first bag body in the inflation main deformation direction.

10. A pneumatic comfort system characterized in that, The airbag assembly further comprises a gas source and a gas distribution device, and the gas source supplies gas to the airbag assembly through the gas distribution device.

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