Air bag and pneumatic comfort system

Abstract

The utility model relates to the technical field of pneumatic comfort systems, and discloses an air bag and a pneumatic comfort system.The air bag comprises a bag body, the bag body comprises a first sheet and a second sheet, the periphery of the first sheet and the periphery of the second sheet are mutually welded, and an inflation space is formed in the area between the first sheet and the second sheet; a first noise reduction structure is arranged on the inner surface, facing the inflation space, of the first sheet. According to the noise reduction structure design, the noise reduction structures are arranged on the inner surfaces of the sheets to increase the roughness, so that after the air bag is deflated, a ventilation gap is still reserved when the two sheets get close to each other, the two sheets can be conveniently and rapidly separated when the air bag is inflated again, abnormal sound is effectively avoided, and the satisfaction degree of use experience is improved; the two sheets of the air bag can be rapidly separated during inflation, and the expansion speed of the air bag is effectively increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of pneumatic comfort systems, and in particular relates to an air bag and a pneumatic comfort system. Background Art

[0002] As the main function-realizing component of the pneumatic comfort system, such as the pneumatic massage system, pneumatic lumbar support system, pneumatic side wing support system, etc., the air bag realizes pneumatic massage and support functions when inflated.

[0003] Among them, a single inflation space of the airbag is usually formed by two opposite sheets of material surrounded by peripheral welding. When gas is filled into the inflation space of the airbag, the two sheets of material are stretched open and separated, and when the gas in the inflation space is discharged, the two sheets of material are close to each other.

[0004] At present, the inner surface of the airbag sheet is usually smooth. When the airbag is deflated, that is, the gas in the inflation space is discharged, the two sheets will be close to each other and form a vacuum suction cup-like fit. When the airbag is inflated again, the two sheets are difficult to separate in time. Separation will only occur when the air pressure in the inflation space is greater than the vacuum adsorption force of the two sheets. At this time, the separated two sheets will produce obvious abnormal noise, which seriously affects the user experience. Utility Model Content

[0005] In order to address the deficiencies in the prior art, the utility model provides an air bag. Through the design of a noise reduction structure, a noise reduction structure is arranged on the inner surface of a sheet to increase the roughness, so that after the air bag is deflated, a breathable gap is still retained between the two sheets when they are close to each other, which facilitates the rapid separation of the two sheets when inflated again, effectively avoiding the generation of abnormal noise and improving the user experience satisfaction.

[0006] The technical effects to be achieved by the utility model are achieved through the following aspects:

[0007] In a first aspect, the utility model provides an air bag, comprising a bag body, wherein the bag body comprises a first sheet and a second sheet, the peripheries of the first sheet and the second sheet are welded to each other, and the area between the first sheet and the second sheet constitutes an inflatable space;

[0008] Wherein, the inner surface of the first sheet facing the air-filled space is provided with a first noise reduction structure.

[0009] In some implementations, the first noise reduction structure includes a first convex dot array disposed on the inner surface of the first sheet, wherein a first air-permeable gap is provided between two adjacent first convex dots in the first convex dot array.

[0010] In some implementations, the first noise reduction structure is a matte structure or a granular structure. Preferably, the first noise reduction structure is a granular structure, where the height of the first bumps in the granular structure is relatively large, and thus the depth of the first ventilation gaps will also increase accordingly. When the airbag is inflated, the first sheet and the second sheet can be separated more quickly.

[0011] In some implementations, a second noise reduction structure is provided on the inner surface of the second sheet facing the inflation space.

[0012] In some implementations, the second noise reduction structure includes a second bump array disposed on the inner surface of the second sheet, where there are second ventilation gaps between adjacent two second bumps in the second bump array.

[0013] In some implementations, the second noise reduction structure is a matte structure or a granular structure.

[0014] In some implementations, a plurality of the airbags are provided, and the inflation spaces of the plurality of airbags are sequentially communicated along the inflation expansion direction.

[0015] In some implementations, the airbag is provided with an air nozzle, and the air nozzle is in air communication with the inflation space of the airbag.

[0016] In some implementations, a massage head is provided on the outer surface of the top of the airbag.

[0017] In a second aspect, the present utility model provides a pneumatic comfort system, including an air source device, a gas distribution device, and the above-mentioned airbag, and the air source device is in air connection with the airbag through the gas distribution device.

[0018] In summary, the present utility model has at least the following advantages:

[0019] For the airbag provided by the present utility model, by providing a noise reduction structure on the inner surface of the sheet of the airbag body, the roughness is increased by setting the noise reduction structure on the inner surface of the sheet. When the airbag deflates and the two sheets approach each other, ventilation gaps are still retained, which facilitates the rapid separation of the two sheets when inflating again, effectively avoids generating abnormal noises, and effectively improves the inflation expansion speed of the airbag.

[0020] For the pneumatic comfort system of the present utility model, by using the above-mentioned airbag, the abnormal noise during the inflation of the airbag can be effectively reduced, and the usage experience can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic three-dimensional structure diagram of a single-layer airbag body airbag according to an embodiment of the present utility model.

[0022] Figure 2This is a schematic cross-sectional structure diagram of the single-layer bag airbag in the embodiment of the present utility model.

[0023] Figure 3 This is a schematic structure diagram of the internal unfolded state of the single-layer bag airbag in the embodiment of the present utility model.

[0024] Figure 4 It is Figure 3 The enlarged structure diagram of part A in

[0025] Figure 5 It is Figure 3 The enlarged structure diagram of part B in

[0026] Figure 6 This is a three-dimensional structure diagram of the multi-layer bag airbag in the embodiment of the present utility model.

[0027] Figure 7 This is a schematic cross-sectional structure diagram of the multi-layer bag airbag in the embodiment of the present utility model.

[0028] Figure 8 This is a schematic structure diagram of the pneumatic comfort system in the embodiment of the present utility model.

[0029] Markings in the figure:

[0030] 1. Bag body, 1A. First bag body, 1B. Second bag body, 1C. Third bag body, 11. First sheet, 111. First noise reduction structure, 1111. First bump, 1112. First ventilation gap, 12. Second sheet, 121. Second noise reduction structure, 1211. Second bump, 1212. Second ventilation gap, 13. Inflation space; 2. Air source device; 3. Gas distribution device. Detailed implementation manners

[0031] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0032] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0033] Please refer to the attached Figures 1-4, the airbag provided by the embodiment of the present utility model includes a bag body 1, the bag body 1 includes a first sheet 11 and a second sheet 12, the peripheries of the first sheet 11 and the second sheet 12 are welded to each other, and the area between the first sheet 11 and the second sheet 12 forms an inflation space 13; wherein, a first noise reduction structure 111 is provided on the inner surface of the first sheet 11 facing the inflation space 13.

[0034] Preferably, the first noise reduction structure 111 includes a first bump array disposed on the inner surface of the first sheet 11. Specifically, the first bump array is formed by arranging a plurality of first bumps 1111 in a fixed or irregular array. The first bumps 111 protrude from the inner surface of the first sheet 11 towards the second sheet 12, that is, they extend and protrude from the inner surface of the first sheet 11 into the inflation space 13. Among them, there is a first air permeable gap 1112 between two adjacent first bumps 1111 in the first bump array.

[0035] Among them, the first noise reduction structure 111 is located on the inner surface of the first sheet 11. After the airbag deflates, the first sheet 11 and the second sheet 12 approach each other, and the first bumps 1111 separate the first sheet 11 and the second sheet 12, preventing the first sheet 11 and the second sheet 12 from directly contacting with a smooth surface, so that a vacuum suction cup-like fit does not occur between the first sheet 11 and the second sheet 12. When inflating the airbag, the first air permeable gap 1112 is equivalent to the air permeable gap reserved between the first sheet 11 and the second sheet 12, enabling gas to enter the inflation space 13 through the first air permeable gap 1112. When inflating, the first sheet 11 and the second sheet 12 can be quickly separated, avoiding the abnormal noise generated when a large inflation pressure is required to separate the first sheet 11 and the second sheet 12 when they are in a vacuum suction cup-like fit.

[0036] It can be understood that the more the number of the first bumps 1111, the smaller the area of the inner surface between the first sheet 11 and the second sheet 12 that contacts with a smooth surface, and the more the number of the first air permeable gaps 1112. Thus, after the airbag deflates, the stability of the adsorption force of the vacuum suction cup-like fit between the first sheet 11 and the second sheet 12 is also weak, which is conducive to the gas flowing to the first air permeable gap 1112, and then it is more convenient to separate the first sheet 11 and the second sheet 12 during inflation. In addition, according to mechanical explanations, when there is no first air permeable gap 1112, only the inflation separation of the first sheet 11 and the second sheet 12 is carried out by the acting point of an air inlet connected to an air nozzle. When there is a first air permeable gap 1112, that is, there are acting points such as the air inlet and several first air permeable gaps 1112, all of which do work on the separation of the first sheet 11 and the second sheet 12, effectively weakening the adsorption force between the first sheet 11 and the second sheet 12 and facilitating quick separation.

[0037] Specifically, the first noise reduction structure 111 is a frosted structure or a granular structure. The specific structure of the first noise reduction structure 111 can be flexibly set according to actual production requirements, with a large applicable range and strong practicability. Among them, during the production and molding of the first sheet 11, the inner surface of the first sheet 11 can be processed to form a frosted structure or a granular structure. For example, after the first sheet 11 is produced and molded, the inner surface of the first sheet 11 can be sanded, and specifically, sandpaper or the like can be used for sanding to complete the formation of the first noise reduction structure 111.

[0038] In some embodiments, a second noise reduction structure 121 having the same function as the first noise reduction structure 11 can be provided on the second sheet 12. Among them, the second noise reduction structure 121 can be understood as a supplementary setting of the first noise reduction structure 111. The bag body 1 can be provided with only the first noise reduction structure 111 on the first sheet 11, or only the second noise reduction structure 121 on the second sheet 12, or the first noise reduction structure 111 and the second noise reduction structure 121 can be respectively provided on the first sheet 11 and the second sheet 12 at the same time to improve the noise reduction effect.

[0039] In a preferred embodiment, please refer to Figure 3 As shown, a second noise reduction structure 121 is further provided on the inner surface of the second sheet 12 facing the inflation space 13. Specifically, please refer to Figure 5 As shown, the second noise reduction structure 121 includes a second bump array disposed on the inner surface of the second sheet 12. The second bump array is formed by arranging a plurality of second bumps 1211 in a fixed or irregular array order. The second bumps 1211 protrude toward the first sheet 11 relative to the inner surface of the second sheet 12, that is, extend and protrude from the inner surface of the second sheet 12 toward the inflation space 13. The second bump array is disposed opposite to the first bump array. Among them, there is a second ventilation gap 1212 between two adjacent second bumps 1211 of the second bump array.

[0040] Specifically, the second noise reduction structure 121 is a frosted structure or a granular structure. Among them, the specific structure of the second noise reduction structure 121 can be flexibly set according to actual production requirements, with a large applicable range and strong practicability. During the production and molding of the second sheet 12, the inner surface of the second sheet 12 can be processed to form a frosted structure or a granular structure. For example, after the second sheet 12 is produced and molded, the inner surface of the second sheet 12 can be sanded, and specifically, sandpaper or the like can be used for sanding to complete the formation of the second noise reduction structure 121.

[0041] Obviously, the second bumps 1211 of the second noise reduction structure 121 and the first bumps 1111 of the first noise reduction structure 111 can both be non-specifically formed or specifically formed, and there are multiple of them. Therefore, after the first sheet 11 and the second sheet 12 approach each other, there will be a state where some of the first bumps 1111 and some of the second bumps 1211 of the first noise reduction structure 111 are in contact with each other, or a staggered state, or both states coexist.

[0042] By providing the second noise reduction structure 121 on the inner surface of the second sheet 12, the bumps in the inflation space 13 are increased, thereby increasing the number of breathable gaps. Therefore, after the airbag deflates, the first bumps 1111 and the second bumps 1211 separate the first sheet 11 and the second sheet 12, so that there are more breathable gaps between the first sheet 11 and the second sheet 12, facilitating the faster separation between the first sheet 11 and the second sheet 12 during the next inflation and more effectively avoiding the generation of abnormal noises.

[0043] In some other embodiments, the airbag body 1 is provided in multiple numbers, and the inflation spaces of the multiple airbag bodies 1 are sequentially communicated along the inflation and expansion direction. It can be understood that the airbag body 1 can be provided in multiple numbers, that is, at least two. And at least one of the airbag bodies 1 is the above-mentioned airbag body 1 having the first noise reduction structure 111 and / or the second noise reduction structure 121, and the remaining airbag bodies 1 can have the first noise reduction structure 111 and / or the second noise reduction structure 121 or do not have the noise reduction structure 111 and / or the second noise reduction structure 121. Preferably, multiple airbag bodies 1 all have the first noise reduction structure 111 and / or the second noise reduction structure 121. Among them, having the first noise reduction structure 111 and / or the second noise reduction structure 121 means that the inner surface of the first sheet 11 and / or the second sheet 12 is a frosted structure or a granular structure, and not having the first noise reduction structure 111 means that the inner surface of the sheet is a smooth surface.

[0044] Specifically, in a preferred embodiment, the airbag includes three airbag bodies 1 with their inflation spaces 13 sequentially communicated. Please refer to Figures 6 to 7As shown, a plurality of bags 1 may be provided with a first bag 1A, a second bag 1B, and a third bag 1C. The inflation spaces 13 of the first bag 1A, the second bag 1B, and the third bag 1C are sequentially connected through through-holes along the inflation direction. The first bag 1A is the above-mentioned bag 1 in which the inner surface of the sheet material has at least a first noise reduction structure 111. The inner surface of the sheet material of the second bag 1B may be at least provided with the first noise reduction structure 111 or a smooth surface. The inner surface of the sheet material of the third bag 1C may be at least provided with the first noise reduction structure 111 or a smooth surface. Preferably, the inner surfaces of the sheet materials of the first bag 1A, the second bag 1B, and the third bag 1C are all the above-mentioned bag 1 with at least a first noise reduction structure 111 and a second noise reduction structure 121. Among them, the first bag 1A may also be called the top layer bag, the second bag 1B may be called the middle layer bag, and the third bag 1C may be called the bottom layer bag.

[0045] At least one of the plurality of bags 1 in the airbag is the above-mentioned bag 1 provided with a first noise reduction structure 111 and / or a second noise reduction structure 121. After the airbag deflates and shrinks, since there is a breathable gap rather than a vacuum suction cup type fit between the first sheet 11 and the second sheet 12 of the bag 1 with the first noise reduction structure 111 and / or the second noise reduction structure 121, the separation between the first sheet 11 and the second sheet 12 of the corresponding bag 1 during inflation is faster, effectively avoiding the generation of abnormal noises.

[0046] In addition, the airbag of the embodiment of the present invention is also provided with an air nozzle. Specifically, the air nozzle is connected and arranged between the first sheet 11 and the second sheet 12 of the bag 1 and is in air communication with the inflation space 13 of the bag 1, so that gas can enter the inflation space 13 through the air nozzle to inflate the bag 1, or flow out from the inflation space 13 to deflate the bag 1. Optionally, when the airbag is an airbag with a multi-layer bag 1, the air nozzle can be connected and arranged on any layer of the bag 1, and the air nozzle is in air communication with the inflation spaces of the plurality of bags 1 through the connection of the inflation spaces 13 between the plurality of bags 1. Specifically, the air nozzle is preferably arranged on the bottom layer bag 1 and is directly connected to the inflation space 13 of the bottom layer bag 1.

[0047] In some other embodiments, a massage head is provided on the outer surface of the top of the airbag. Specifically, the massage head is provided on the outer surface of the top of the airbag. When the airbag is an airbag with a multi-layer bag 1, it is provided on the outer surface of the top of the top layer bag 1. The massage head can be integrally formed or pasted and fixed. By adding the massage head, the finger pressure massage effect of the airbag can be improved.

[0048] Among them, the material of the massage head can be a metal material or the same material as the sheet material of the bag 1. For example, both the first sheet 11 and the second sheet 12 of the bag 1 are made of TPU material, and the massage head is also made of TPU material and is integrally formed or pasted and fixed on the outer surface of the top of the first sheet 11.

[0049] In addition, the TPU material massage head can have a cavity inside, and the cavity is communicated with the inflation space 13 of the bag body 1; and the cavity can be further filled with flexible materials such as sponge, foaming material, etc. When deflating, the flexible filler provides flexible support; when inflating, air enters the cavity and squeezes the flexible filler, increasing the hardness of the massage head to achieve the finger pressure massage effect.

[0050] For the pneumatic comfort system provided by the embodiment of the present utility model, please refer to Figure 8 , which includes an air source device 2, a gas distribution device 3 and the above-mentioned air bag, and the air source device 2 is connected to the air bag through the gas distribution device 3 for ventilation. Specifically, the air bag can be a massage air bag, a lumbar support air bag, a flank support air bag, etc., and the massage air bag is an exemplary preferred solution among them. Therefore, the corresponding pneumatic comfort system can be one or more of a pneumatic massage system, a pneumatic lumbar support system, and a pneumatic flank support system.

[0051] In addition, the air source device 2 of the pneumatic comfort system can be selected as an air pump, an air compressor or a pump-valve integrated structure. The gas distribution device 3 can be selected as a solenoid valve module. It can be understood that the air inlets of the solenoid valves of the solenoid valve module are connected to the air source device 2 for ventilation, while the inflation ports are respectively connected to an air bag for ventilation, and the deflation ports are communicated with the atmospheric environment, and the inflation and deflation of the corresponding air bag are controlled by each solenoid valve.

[0052] When the pneumatic comfort system is a combination of a pneumatic massage system, a pneumatic lumbar support system, and a pneumatic flank support system, the solenoid valves of the solenoid valve module can include various types, such as two-way three-way solenoid valves corresponding to the massage air bags of the pneumatic massage system, and three-way three-way solenoid valves corresponding to the lumbar support air bags of the air bag lumbar support system and the flank air bags of the pneumatic flank support system respectively.

[0053] In the pneumatic comfort system of the embodiment of the present utility model, by designing a first noise reduction structure 111 and / or a second noise reduction structure 121 on the air bag, the phenomenon that the first sheet 11 and the second sheet 12 produce a vacuum suction cup-like fit when the air bag deflates is avoided, so that an air permeable gap is reserved between the first sheet 11 and the second sheet 12 after deflation. Since there are more air permeable gaps in the air bag, the first sheet 11 and the second sheet 12 are separated more quickly during inflation, effectively avoiding the generation of abnormal noises and improving the user experience satisfaction.

[0054] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication between two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0055] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for differential description and cannot be understood as indicating or implying relative importance.

[0056] Although the description of the present utility model is made in combination with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included within the spirit and scope of the appended claims.

Claims

1. An air bag, characterized in that: The bag comprises a bag body, wherein the bag body comprises a first sheet and a second sheet, the peripheries of the first sheet and the second sheet are welded to each other, and the area between the first sheet and the second sheet constitutes an air-filled space; Wherein, the inner surface of the first sheet facing the air-filled space is provided with a first noise reduction structure.

2. The airbag according to claim 1, characterized in that: The first noise reduction structure includes a first convex dot array arranged on the inner surface of the first sheet material, wherein a first air-permeable gap is provided between two adjacent first convex dots in the first convex dot array.

3. The airbag according to claim 2, characterized in that: The first noise reduction structure is a frosted structure or a granular structure.

4. The airbag according to claim 1, characterized in that: The inner surface of the second sheet facing the air-filled space is provided with a second noise reduction structure.

5. The airbag according to claim 4, characterized in that: The second noise reduction structure includes a second convex dot array arranged on the inner surface of the second sheet material, wherein a second air permeable gap is provided between two adjacent second convex dots of the second convex dot array.

6. The airbag according to claim 5, characterized in that: The second noise reduction structure is a frosted structure or a particle structure.

7. The airbag according to claim 1, characterized in that: The bag bodies are provided in plurality, and the inflation spaces of the plurality of bag bodies are sequentially connected along the inflation direction.

8. The airbag according to any one of claims 1 to 7, characterized in that: The air bag is provided with an air nozzle, and the air nozzle is ventilated and connected to the inflation space of the bag body.

9. The airbag according to any one of claims 1 to 7, characterized in that: The top outer surface of the air bag is provided with a massage head.

10. A pneumatic comfort system, characterized in that: It comprises a gas source device, a gas distribution device and the gas bag as described in any one of claims 1 to 9, wherein the gas source device is ventilatedly connected to the gas bag through the gas distribution device.

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