Air bag, massage assembly and pneumatic massage system

Abstract

The embodiment of the invention relates to the technical field of air bags, and particularly discloses an air bag, a massage assembly and a pneumatic massage system.The air bag comprises a first membrane, a second membrane, a third membrane and a first ventilation pipe, and the periphery of the second membrane is fixedly connected with the periphery of the first membrane; an air chamber for accommodating air is formed between the first diaphragm and the second diaphragm, and the second diaphragm is provided with at least one first air vent; the third diaphragm is fixedly connected with the second diaphragm, the third diaphragm covers the first air vent, and a buffer cavity is formed between the second diaphragm and the third diaphragm; the first ventilation pipe is fixed between the second diaphragm and the third diaphragm, and one end of the first ventilation pipe is located in the buffering cavity. In this way, the noise can be reduced.

Description

Technical Field

[0001] This invention relates to the field of airbag technology, and in particular to an airbag, a massage component, and a pneumatic massage system. Background Technology

[0002] The air bag includes a bag body and a venting tube. An air chamber is provided inside the bag body, and the venting tube passes through the bag body. One end of the venting tube is inserted into the air chamber, and the other end is located outside the bag body. The air chamber can be inflated and deflated, and the bag body can be expanded and contracted, through the venting tube.

[0003] In the process of realizing this invention, the inventors discovered that the flow of gas during inflation causes noise and reduces the user experience. Summary of the Invention

[0004] This invention provides an air bag, a massage component, and a pneumatic massage system that can reduce noise.

[0005] To solve the above-mentioned technical problems, one technical solution adopted by the present invention is: to provide an air bag, the air bag including a first diaphragm, a second diaphragm, a third diaphragm and a first vent tube, the periphery of the second diaphragm is fixedly connected to the periphery of the first diaphragm, and an air chamber for containing gas is formed between the first diaphragm and the second diaphragm, the second diaphragm having at least one first vent; the third diaphragm is fixedly connected to the second diaphragm, the third diaphragm covering the first vent, and a buffer cavity is formed between the second diaphragm and the third diaphragm; the first vent tube is fixed between the second diaphragm and the third diaphragm, one end of the first vent tube being located in the buffer cavity.

[0006] Optionally, the position of the first vent is offset from the geometric center of the second diaphragm.

[0007] Optionally, there may be multiple first vents, with the multiple first vents surrounding the geometric center of the second diaphragm.

[0008] Optionally, the airbag may also include a first noise reduction element for absorbing noise, the first noise reduction element being disposed in the buffer cavity.

[0009] Optionally, the third diaphragm includes a base and a connecting portion, the periphery of the base is fixedly connected to the second diaphragm to form a buffer cavity, and the connecting portion surrounds the periphery of the base.

[0010] Optionally, the third diaphragm is circular, and the connecting part is annular.

[0011] Optionally, the connection between the first diaphragm and the second diaphragm has several evenly distributed recesses. When the air bag is inflated, the air chamber is filled with gas, which causes the air chamber to expand and forms several evenly distributed recessed areas on the outer edge of the air chamber.

[0012] Optionally, the air bag may also include a fourth diaphragm, the periphery of which is fixedly connected to the first diaphragm, and a receiving cavity is formed between the fourth diaphragm and the first diaphragm, the receiving cavity containing a filler.

[0013] Optionally, the first diaphragm is provided with a second vent, and the receiving cavity is connected to the air chamber through the second vent.

[0014] To solve the above-mentioned technical problems, another technical solution adopted by the present invention is to provide a massage component, which includes an air bag as described in any of the above embodiments and a plurality of massage air cushions. The massage air bag is disposed on a first diaphragm, and each massage air cushion is arranged around the geometric center of the first diaphragm.

[0015] To solve the above-mentioned technical problems, another technical solution adopted by the present invention is to provide a pneumatic massage system, which includes an air bag as described in any of the above embodiments.

[0016] The beneficial effects of this invention are as follows: Unlike existing technologies, this invention provides an air bag comprising a first diaphragm, a second diaphragm, a third diaphragm, and a first venting tube. The periphery of the second diaphragm is fixedly connected to the periphery of the first diaphragm, and a gas chamber for containing gas is formed between the first and second diaphragms. The second diaphragm has at least one first vent. The third diaphragm is fixedly connected to the second diaphragm and covers the first vent, forming a buffer cavity between the second and third diaphragms. The first venting tube is fixed between the second and third diaphragms, with one end of the first venting tube located within the buffer cavity. By providing the buffer cavity, the gas flow rate is reduced, thereby reducing noise. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the first airbag after deflation in an embodiment of the present invention; Figure 2 This is a schematic diagram of the first airbag after inflation according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the first capsule according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a first airbag with a circular outer contour of the first connecting part according to an embodiment of the present invention; Figure 5 This is a schematic diagram of a first airbag whose outer contour is polygonal, representing an embodiment of the present invention. Figure 6 This is a schematic diagram of the airbag assembly according to an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 10. Massage components; 100. Air bag; 101. Air chamber; 102. Buffer cavity; 103. Recessed portion; 104. Recessed area; 105. First joint; 106. Welded portion; 110. First diaphragm; 120. Second diaphragm; 121. First vent; 130. Third diaphragm; 131. Base; 132. Connecting portion; 140. First vent tube; 150. Fourth diaphragm; 160. Intermediate diaphragm; 200. Massage Air Cushion; 210. First sheet; 220. Second vent tube; 230. Intermediate sheet; 240. Fourth sheet; 250. Fifth diaphragm; 300. Connectors. Detailed Implementation

[0020] To facilitate understanding of the present invention, 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.

[0021] 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 invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0022] Please see Figure 1 and Figure 2The air bag 100 includes a first diaphragm 110, a second diaphragm 120, a third diaphragm 130, and a first vent tube 140. The periphery of the first diaphragm 110 is fixedly connected to the periphery of the second diaphragm 120, and an air chamber 101 for containing gas is formed between the first diaphragm 110 and the second diaphragm 120. The air bag 100 expands and contracts by inflating and deflating the air chamber 101. The second diaphragm 120 has at least one first vent 121, which communicates with the air chamber 101. The third diaphragm 130 is fixedly connected to the second diaphragm 120 and covers the first vent 121. A buffer cavity 102 is formed between the second diaphragm 120 and the third diaphragm 130, and the buffer cavity 102 communicates with the air chamber 101 through the first vent 121. The first vent tube 140 is fixed between the second diaphragm 120 and the third diaphragm 130. One end of the first vent tube 140 is located inside the buffer chamber 102, and the other end is located outside the buffer chamber 102. Gas enters the buffer chamber 102 through the first vent tube 140, and then slowly flows into the air chamber 101 through the first vent 121, achieving gradual expansion of the air bag 100 and effectively reducing impact pressure. When the air bag 100 deflates, the gas is discharged in the opposite direction along the original path. The buffer chamber 102 throttles the airflow, preventing sudden collapse. By controlling the inflation and deflation rhythm as described above, user comfort is improved. Furthermore, the buffer chamber 102 reduces the gas flow rate and noise.

[0023] Furthermore, the first diaphragm 110 can serve as a mounting base for the air bag 100, used to fix it to the surface to be installed (not shown). Thus, after the air bag 100 is fixedly installed, the first vent pipe 140 does not need to rise and fall synchronously with the inflation and deflation of the air bag 100, reducing the pulling movement and rising and falling of the first vent pipe 140 caused by the shape change of the air bag 100 during inflation and deflation, and reducing frictional noise.

[0024] For ease of understanding, the first direction X is defined as the expansion direction of the air bag 100, which is also the thickness direction of the air bag 100.

[0025] In some embodiments, please combine Figure 3Along the first direction X, the position of the first vent 121 is offset from the geometric center of the second diaphragm 120, and the distance between the first vent 121 and the geometric center of the second diaphragm 120 can be adjusted as needed. During the inflation of the air bag 100, the orientation of the first vent 121 is offset from the center of the air chamber 101, and the gas inside the buffer chamber 102 flows into the air chamber 101 through the first vent 121, always along an eccentric path (that is, a path that does not pass through the center of the air chamber 101). Due to the eccentric characteristic of the gas flow path, the risk of eddy currents generated during the gas flow in the air chamber 101 is reduced, further reducing noise. Optionally, there are multiple first vents 121, and each first vent 121 is offset from the geometric center of the second diaphragm 120.

[0026] For example, when the air bag 100 is not inflated, the second diaphragm 120 is circular, and the center of the first air vent 121 is offset from the center of the second diaphragm 120. Alternatively, the second diaphragm 120 is rectangular, and the intersection points of the first air vent 121 and the two diagonals of the second diaphragm 120 are offset. Or, the second diaphragm 120 is racetrack-shaped, and the intersection points of the first air vent 121 and the two diagonals of the rectangular portion of the second diaphragm 120 are offset.

[0027] Furthermore, there are multiple first vents 121, which surround the geometric center of the second diaphragm 120. Along the aforementioned surrounding direction, the first vents 121 are evenly spaced. This arrangement not only ensures that each first vent 121 is staggered from the geometric center of the second diaphragm 120, guaranteeing noise reduction, but also allows for multi-point uniform inflation of the air chamber 101 along the expansion direction through the first vents 121, avoiding localized over-inflation and ensuring uniform inflation of the air bag 100 along the first direction X, reducing the risk of tilting or bending during inflation. It should be noted that the arrangement of the first vents 121 is not limited to this; for example, the buffer cavity 102 can be staggered from the geometric center of the second diaphragm 120, and the first vents 121 can be located at any position within the buffer cavity 102.

[0028] In some embodiments, the air bag 100 further includes a first noise reduction component (not shown), which is disposed within the buffer cavity 102. The first noise reduction component absorbs noise generated by the gas within the buffer cavity 102, thereby reducing noise. Furthermore, the first noise reduction component separates the second diaphragm 120 and the third diaphragm 130, preventing direct contact between them after the air bag 100 deflates. This reduces the risk of noise generation due to the second diaphragm 120 and the third diaphragm 130 sticking together and then separating. It is understood that the first noise reduction component can be a sponge, sound-absorbing cotton, sintered block, etc.

[0029] In some embodiments, please combine Figure 4 and Figure 5 The third diaphragm 130 includes a base 131 and a connecting portion 132. The edge of the base 131 is fixedly connected to the second diaphragm 120 so that the base 131 and the second diaphragm 120 enclose a buffer cavity 102. The connecting portion 132 surrounds the periphery of the base 131, such that only its inner edge is fixed to the second diaphragm 120. When the airbag assembly is installed on the surface to be installed, the surface to be installed is often planar. One side of the third diaphragm 130 is fixed to the second diaphragm 120, and the other side of the third diaphragm 130 is adhered and fixed to the surface to be installed. If the third diaphragm 130 is adhered and fixed to the surface to be installed, under the constraint of the surface to be installed, all points of the third diaphragm 130 should be located in the same plane. After the airbag 100 inflates, the third diaphragm 130 bulges towards the surface to be installed, thereby forming an arc surface. Therefore, under the combined action of the surface to be installed and the second diaphragm 120, tension occurs between the surface to be installed and the third diaphragm 130, and between the second diaphragm 120 and the third diaphragm 130, making the connection of the third diaphragm 130 weak and reducing its service life. Based on this, the connecting part 132 is fixed to the surface to be installed. After the air bag 100 expands, the connecting part 132 does not deform with the expansion of the air bag 100, and the connecting part 132 can be stably connected to the surface to be installed. The base 131 is not fixedly connected to the surface to be installed. The base 131 bulges with the expansion of the air bag 100, and there is no tension between the bulging base 131 and the surface to be installed. Furthermore, the connecting part 132 is arranged around the base 131, so that after the air bag 100 is fixed to the surface to be installed in the above manner, the entire periphery of the base 131, which is not connected to the surface to be installed, is fixed to the surface by the connecting part 132, thereby ensuring the stability of the air bag 100.

[0030] After the air bag 100 inflates, both the second diaphragm 120 and the third diaphragm 130 bulge, with the geometric centers of the second diaphragm 120 and the third diaphragm 130 protruding the most. Based on this, when viewed along the first direction X, the geometric center of the base 131 is aligned with the geometric center of the second diaphragm 120, and the expansion direction of the buffer cavity 102 is consistent with the expansion direction of the air chamber 101, reducing the risk of the air bag 100 tilting or bending during inflation.

[0031] In some further embodiments, an adhesive layer (not shown) is provided on the side of the connecting portion 132 opposite to the second diaphragm 120, and a release film (not shown) is adhered to the adhesive layer. The release film can be removed from the adhesive layer when installing the air bag 100, and the release film can be release paper. When installing the air bag 100, the release film is removed to expose the adhesive layer, and the adhesive layer is then adhered to the surface to be installed. The installation operation of the air bag 100 is simple and convenient. It should be noted that the bonding method between the connecting portion 132 and the surface to be installed is not limited to this. The connecting portion 132 may also not have an adhesive layer and a release film. When installing the air bag 100, the fixed connection between the connecting portion 132 and the surface to be installed can be achieved by applying glue or adhering double-sided tape to the connecting portion 132.

[0032] It should be noted that the first diaphragm 110 and the second diaphragm 120, as well as the third diaphragm 130 and the second diaphragm 120, are bonded and fixed together by methods such as high-frequency welding. That is, the edge of the base 131 is welded to the second diaphragm 120 to form a ring-shaped first joint 105. During manufacturing, the third diaphragm 130 and the first vent tube 140 need to be installed onto the second diaphragm 120 in two separate processes. When installing the second diaphragm 120, a portion of the edge of the base 131 is welded to the second diaphragm 120, while a notch is formed between the other portion of the base 131 and the second diaphragm 120. When installing the first vent tube 140, one end of the first vent tube 140 is inserted into the notch, and then the second diaphragm 120 and the third diaphragm 130 are fixedly connected to the first vent tube 140 at the notch through a welding process, forming a complete first joint 105. Based on this, the edge of the base 131 is spaced apart from the edge of the second diaphragm 120, so that the edge of the base 131 is not limited by the shape and size of the edge of the second diaphragm 120. For second diaphragms 120 of different shapes, the third diaphragm 130 can form the same first joint 105 with the second diaphragm 120, thereby reducing the risk of needing multiple molds for processing and reducing production costs.

[0033] In practical applications, massage products often include multiple air bags 100, which are supplied with air via air tubes (not shown). The layout of these air tubes is often complex. To reduce the risk of air tube blockage due to small turning radii, and to prevent unevenness of the air bags 100 caused by air tube tension, the first air vent 140 of the air bag 100 often needs to be positioned at a specific location within the air bag 100. In the molding die, a suitable outlet groove needs to be designed for the first air vent 140. The shape of the first joint 105 and the first air vent 140 differ depending on the position where the first air vent 140 is inserted into the first joint 105, requiring different angle outlet grooves in the molding die. For example, two different molding dies are needed for the straight section and corner of the rectangular first joint 105, and two different molding dies are needed for the straight section and arc section of the racetrack-shaped first joint 105. In this regard, the third diaphragm 130 is a circular sheet, the connecting part 132 is annular, and the edge of the base 131 is circular, thus forming a circular first joint 105. The first vent pipe 140 can be inserted at any position on the circular first joint 105, and the overall shape of the first joint 105 and the first vent pipe 140 remains unchanged, without the need to adjust the angle of the outlet groove, thus enhancing the versatility of the mold.

[0034] It is understood that the air chamber 101 formed by the first diaphragm 110 and the second diaphragm 120 is a deformable space. In the uninflated state, the first diaphragm 110 and the second diaphragm 120 tend to come closer together, causing the air bag 100 to be in a contracted state. A welded portion 106 is formed at the connection between the first diaphragm 110 and the second diaphragm 120. In the inflated state, along the first direction X, the first diaphragm 110 and the second diaphragm 120 are adhered and fixed at the welded portion 106. In other areas, the first diaphragm 110 and the second diaphragm 120 are separated from each other, causing the overall air bag 100 to be in an inflated state with a central bulge. During inflation, the separation between the first diaphragm 110 and the second diaphragm 120 pulls the welded portion 106 inward and towards the center, thereby forming irregularly shaped folds at the welded portion 106.

[0035] Based on this, the connection between the first diaphragm 110 and the second diaphragm 120 has several evenly distributed recesses 103, that is, the welded portion 106 has multiple recesses 103 arranged circumferentially, and the recesses 103 are formed by protruding inward from the inner contour of the welded portion 106. When the air bag 100 is inflated, the air chamber 101 is filled with gas, thereby causing the air chamber 101 to expand, and the area where the recesses 103 are located to contract inward, forming several evenly distributed inwardly recessed areas 104 on the outer edge of the air chamber 101. In this way, the wrinkles formed on the surface of the air bag 100 after inflation and expansion are formed at the corresponding locations of the recesses 103. The above-mentioned wrinkle forming process and forming position have a directionality along the recesses 103, rather than randomness, and the wrinkles formed are small in size, reducing the risk of forming large recessed wrinkles. The deformation caused by small wrinkles is small, and the small wrinkles are not obvious on the surface of the air bag 100. Furthermore, during the continued inflation of the air bag 100, the folds will not undergo elastic abrupt changes and spring open, thus avoiding abnormal noises during inflation. When the air bag 100 is deflated, the air chamber 101 deflates through the first vent 121 and contracts back to its initial uninflated state. The recessed area 104 disappears and the recessed portion 103 returns to its original shape. Moreover, the folds on the surface of the air bag 100 disappear, and the surface of the air bag 100 returns to a smooth shape.

[0036] Based on the aforementioned arrangement of multiple recesses 103, after the air bag 100 deflates, when viewed along the first direction X, the outer periphery of the air chamber 101 is polygonal. This polygon can be a regular polygon, an irregular polygon, or a polygon-like polygon, determined by the inner contour shape of the welded portion 106. Optionally, when viewed along the first direction X, the inner contour of the welded portion 106 forms a straight edge or an arc edge with the recesses 103. It is understood that the aforementioned recesses 103 are independent of the outer contour of the welded portion 106, which can be of any shape. For example, the outer contour of the welded portion 106 can be circular, or it can be a polygon similar to the inner contour.

[0037] To increase the thickness of the inflated air bag 100, the air bag 100 also includes a plurality of intermediate membranes 160, each intermediate membrane 160 being sequentially disposed between the first membrane 110 and the second membrane 120 along a first direction X. The periphery of one intermediate membrane 160 is fixedly connected to the periphery of the first membrane 110, thereby forming a bag unit, with the first membrane 110 and the intermediate membrane 160 enclosing and defining a unit air cavity. The periphery of another intermediate membrane 160 is fixedly connected to the periphery of the second membrane 120, thereby forming a bag unit, with the first membrane 110 and the intermediate membrane 160 enclosing and defining a unit air cavity. Among the remaining intermediate membranes 160, the peripheries of two adjacent intermediate membranes 160 are fixedly connected to each other to form a bag unit, with the two intermediate membranes 160 of the bag unit enclosing and defining a unit air cavity. Along the first direction, the bag units are arranged sequentially, and the air bag 100 has a first through hole between two adjacent bags, so that the air chambers of each unit are connected sequentially to form an air chamber 101. By setting multiple intermediate diaphragms 160, the expansion deformation of the air bag 100 along the first direction X is increased.

[0038] For the air bag 100 with an intermediate diaphragm 160, each unit air cavity has a plurality of evenly distributed recesses 103 around its periphery. This allows each unit air cavity to expand when the air bag 100 is inflated, forming a plurality of evenly distributed recessed areas 104 along its outer edge. This design reduces the risk of large wrinkles appearing on each bag unit.

[0039] In some embodiments, the surface of the second diaphragm 120 facing the third diaphragm 130 is frosted, and the surface of the connecting portion 132 of the third diaphragm 130 facing the second diaphragm 120 is frosted, thereby reducing the risk of abnormal noise caused by the connecting portion 132 separating from the second diaphragm 120 after they are attached. Optionally, the outer surfaces of the first diaphragm 110, the second diaphragm 120, the third diaphragm 130, and the intermediate diaphragm 160 are all frosted.

[0040] In some embodiments, the air bag 100 further includes a fourth diaphragm 150, the periphery of which is fixedly connected to the first diaphragm 110. The area of ​​the fourth diaphragm 150 is smaller than that of the first diaphragm 110, and when viewed along the first direction X, the projection area of ​​the fourth diaphragm 150 is located within the projection area of ​​the first diaphragm 110. A receiving cavity is formed between the fourth diaphragm 150 and the first diaphragm 110, and the receiving cavity contains a filler. When viewed along a direction intersecting the first direction X, the fourth diaphragm 150 is convex or hemispherical, generating greater pressure when subjected to force. In use, the side of the air bag 100 facing away from the second diaphragm 120 is used to massage the body to be massaged. The protruding fourth diaphragm 150 is supported by the first diaphragm 110 and is used to simulate the knuckle massage of a human hand. Compared to the first diaphragm 110 pressing the body to be massaged, the fourth diaphragm 150 reduces the contact area, thereby increasing the massage pressure and achieving a better massage effect. In some further embodiments, viewed along the first direction X, the geometric center of the fourth diaphragm 150 is aligned with the geometric center of the first diaphragm 110, where the geometric center of the first diaphragm 110 has the highest degree of protrusion along the first direction X. The geometric center of the fourth diaphragm 150 is positioned here, further increasing the pressure exerted by the fourth diaphragm 150 on the body to be massaged. It is understood that the filler can be gas, liquid, foam material, etc. It is understood that the first diaphragm 110, the second diaphragm 120, the third diaphragm 130, the fourth diaphragm 150, and the intermediate diaphragm 160 are all made of weldable plastic materials, such as, but not limited to, polycarbonate (PC), thermoplastic polyurethane elastomer (TPU), and polyvinyl chloride (PVC).

[0041] It should be noted that when the filling material is gas, the gas in the receiving cavity can come from the inflation of the air bag 100. The first diaphragm 110 is provided with a second vent, and the receiving cavity is connected to the air chamber 101 through the second vent. When the air chamber 101 is inflated, the gas in the air chamber 101 enters the receiving cavity through the second vent, causing the fourth diaphragm 150 to bulge and form a protrusion. When the air bag 100 deflates, the gas in the receiving cavity is discharged along the opposite path, and the fourth diaphragm 150 contracts accordingly, so that the fourth diaphragm 150 does not remain in a bulging state when massage is not required, reducing the foreign body sensation caused by the fourth diaphragm 150 at this time.

[0042] In this embodiment of the invention, the air bag 100 includes a first diaphragm 110, a second diaphragm 120, a third diaphragm 130, and a first venting tube 140. The periphery of the second diaphragm 120 is fixedly connected to the periphery of the first diaphragm 110, and an air chamber 101 for containing gas is formed between the first diaphragm 110 and the second diaphragm 120. The second diaphragm 120 has at least one first venting port 121. The third diaphragm 130 is fixedly connected to the second diaphragm 120 and covers the first venting port 121. A buffer cavity 102 is formed between the second diaphragm 120 and the third diaphragm 130. The first venting tube 140 is fixed between the second diaphragm 120 and the third diaphragm 130, and one end of the first venting tube 140 is located inside the buffer cavity 102. By providing the buffer cavity 102, the gas flow rate is reduced, thereby reducing noise.

[0043] This invention provides an embodiment of the massage component 10; please refer to [link / reference]. Figure 6 The massage component 10 includes an air bag 100 as described above and multiple massage air cushions 200. The structure and function of the air bag 100 can be found in the above embodiments and will not be repeated here. The massage air bag 100 is disposed on the first diaphragm 110, and each massage air cushion 200 is arranged around the geometric center of the first diaphragm 110. Each massage air cushion 200 is supported by the inflated air bag 100 and can perform multi-point massage on the object to be massaged.

[0044] It should be noted that each massage air cushion 200 can be inflated and deflated independently, thus enabling the massage component 10 to have different massage modes. Each massage air cushion 200 can be inflated or deflated simultaneously, thereby achieving multi-point massage from each massage air cushion 200 at the same time.

[0045] Alternatively, the inflation and deflation of each massage air cushion 200 may not be synchronized. For example, if there are three or more massage air cushions 200, each air cushion 200 inflates to a set value and then begins to deflate. Observing along the first direction X, with clockwise or counterclockwise as the massage direction, in any two adjacent massage air cushions 200, after the previous massage air cushion 200 deflates, the next massage air cushion 200 inflates to the set value. In this way, the airbag assembly 1 can simulate the kneading massage method of a human hand.

[0046] Understandably, one end of the massage air cushion 200 is fixed to the first diaphragm 110, while the other end is free to move. After the air bag 100 inflates, the first diaphragm 110 of the air bag 100 bulges to form an arc surface, causing each massage air cushion 200 on this arc surface to expand in different directions. Based on this, the massage assembly 10 also includes a connector 300, which is connected to the end of each massage air cushion 200 away from the first diaphragm 110, thereby restricting the movement of the end of the massage air cushion 200 away from the first diaphragm 110. Through the above-mentioned connector 300, each massage air cushion 200 is forced to expand along the first direction X after the air bag assembly inflates. Furthermore, this reduces the risk of each massage air cushion 200 tilting or bending under the pressure of the object being massaged, thereby ensuring a good massage experience. As an example, the connector 300 can be a diaphragm structure, and the connector 300 is provided with multiple connection holes. A massage air cushion 200 passes through one connection hole and is fixedly connected to the connector 300 at the periphery of the connection hole.

[0047] In some embodiments, the massage air cushion 200 further includes a fifth diaphragm 250, which is fixed to the first diaphragm 110. Each massage air cushion 200 is disposed on the side of the fifth diaphragm 250 facing away from the air bag 100. The central region of the fifth diaphragm 250 is fixedly connected to the first diaphragm 110, and the edge of the fifth diaphragm 250 can move relative to the first diaphragm 110, thereby reducing the deformation of the fifth diaphragm 250 after the air bag 100 expands, and thus reducing the risk that the expansion direction of the massage air cushion 200 deviates from the first direction X. Optionally, each massage air cushion 200 is fixed to the edge of the fifth diaphragm 250.

[0048] The structure of the massage air cushion 200 described above can be similar to that of the air bag 100. The air bag 100 includes a first sheet 210, a second sheet, a third sheet (not shown), and a second air tube 220. The periphery of the first sheet 210 is fixedly connected to the periphery of the second sheet, and an inner cavity for containing gas is formed between the first sheet 210 and the second sheet. The expansion and contraction of the massage air cushion 200 are achieved by inflating and deflating the inner cavity. The second sheet has a first air vent that communicates with the inner cavity. The third sheet is fixedly connected to the second sheet and covers the first air vent. A transition cavity is formed between the second sheet and the third sheet, and the transition cavity communicates with the inner cavity through the first air vent. The second vent 220 is fixed between the second and third sheets. One end of the second vent 220 is located inside the transition cavity, and the other end is located outside the transition cavity. The second vent 220 of each massage air cushion 200 can be independently inflated and deflated. The transition cavity reduces the gas flow rate and noise. Furthermore, along the first direction X, the position of the first vent is offset from the geometric center of the second sheet, thereby reducing the risk of eddy currents and further reducing noise.

[0049] In some embodiments, the massage air cushion 200 further includes a second noise-reducing element (not shown), which is disposed within the transition cavity. The second noise-reducing element absorbs noise generated by the gas within the transition cavity, thereby reducing noise. Furthermore, the second noise-reducing element separates the second and third sheets, preventing direct contact between them after the massage air cushion 200 deflates, thus reducing the risk of noise generation due to the second and third sheets separating after adhesion. It is understood that the second noise-reducing element can be a sponge, sound-absorbing cotton, sintered block, etc.

[0050] In some embodiments, the third sheet includes a central portion and an edge portion. The edge of the central portion is fixedly connected to the second sheet so that the central portion and the second sheet enclose a transition cavity. The edge portion surrounds the periphery of the central portion, such that only its inner edge is fixed to the second sheet. The third sheet is circular, with an annular edge and a circular edge at the central portion, thus forming a circular second joint. The structure and function of the third sheet are similar to those of the third diaphragm 130, and will not be described in detail here.

[0051] In some embodiments, the massage air cushion 200 further includes a plurality of intermediate sheets 230, each intermediate sheet 230 being sequentially disposed between a first sheet 210 and a second sheet along a first direction X. The periphery of one intermediate sheet 230 is fixedly connected to the periphery of the first sheet 210, thereby forming an air cushion unit, with the first sheet 210 and the intermediate sheet 230 enclosing and defining a unit cavity. The periphery of another intermediate sheet 230 is fixedly connected to the periphery of the second sheet, thereby forming an air cushion unit, with the first sheet 210 and the intermediate sheet 230 enclosing and defining a unit cavity. Among the remaining intermediate sheets 230, the peripheries of two adjacent intermediate sheets 230 are fixedly connected to each other to form an air cushion unit, with the two intermediate sheets 230 of the air cushion unit enclosing and defining a unit cavity. Along the first direction, the air cushion units are sequentially disposed, and the massage air cushion 200 has a second through-hole between two adjacent pockets, thereby allowing the unit cavities to be sequentially connected to form an inner cavity.

[0052] In some embodiments, the massage air cushion 200 further includes a fourth sheet 240, the periphery of which is fixedly connected to the first sheet 210. The area of ​​the fourth sheet 240 is smaller than that of the first sheet 210, and when viewed along the first direction X, the projection area of ​​the fourth sheet 240 is located within the projection area of ​​the first sheet 210. A receiving cavity is formed between the fourth sheet 240 and the first sheet 210, and the receiving cavity contains a filler. This arrangement increases the massage pressure.

[0053] This invention provides an embodiment of a pneumatic massage system, which includes the air bag 100 described above. It is understood that this pneumatic massage system may also include an air pump for inflating the air bag 100, the air pump being connected to a first air vent 140 on the air bag 100, and / or may include a control valve for controlling the inflation speed and inflation volume of the air bag 100. The structure and function of the air bag 100 can be found in the above embodiments, and will not be repeated here.

[0054] It should be noted that while the preferred embodiments of the present invention are given in the specification and accompanying drawings, the present invention 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 the present invention; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of the present invention. 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 the present invention 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 air bag, characterized in that, include: First diaphragm; The second diaphragm is fixedly connected to the periphery of the first diaphragm, and a gas chamber for containing gas is formed between the first diaphragm and the second diaphragm. The second diaphragm has at least one first vent. A third diaphragm is fixedly connected to the second diaphragm and covers the first vent. A buffer cavity is formed between the second diaphragm and the third diaphragm. A first vent tube is fixed between the second diaphragm and the third diaphragm, with one end of the first vent tube located inside the buffer cavity.

2. The air bag according to claim 1, characterized in that, The position of the first vent is offset from the geometric center of the second diaphragm.

3. The air bag according to claim 1, characterized in that, There are multiple first vents, and the multiple first vents surround the geometric center of the second diaphragm.

4. The air bag according to claim 1, characterized in that, The air bag also includes a first noise reduction component for absorbing noise, the first noise reduction component being disposed in the buffer cavity.

5. The air bag according to claim 1, characterized in that, The third diaphragm includes a base and a connecting portion. The periphery of the base is fixedly connected to the second diaphragm to form the buffer cavity, and the connecting portion surrounds the periphery of the base.

6. The air bag according to claim 5, characterized in that, The third diaphragm is circular, and the connecting part is annular.

7. The air bag according to claim 1, characterized in that, The connection between the first diaphragm and the second diaphragm has several evenly distributed recesses. When the air bag is inflated, the air chamber is filled with gas, thereby causing the air chamber to expand and forming several evenly distributed recessed areas along the outer edge of the air chamber.

8. The air bag according to claim 1, characterized in that, The air bag also includes a fourth diaphragm, the periphery of which is fixedly connected to the first diaphragm, and a receiving cavity is formed between the fourth diaphragm and the first diaphragm, the receiving cavity containing a filler.

9. The air bag according to claim 1, characterized in that, The first diaphragm is provided with a second vent, and the receiving cavity is connected to the air chamber through the second vent.

10. A massage component, characterized in that, It includes an air bag as described in any one of claims 1-9 and a plurality of massage air cushions, wherein the massage air bag is disposed on the first diaphragm and each of the massage air cushions is arranged around the geometric center of the first diaphragm.

11. A pneumatic massage system, characterized in that, Including the air bag as described in any one of claims 1-9.

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