Airbag cushion and mattress using same

Abstract

An airbag cushion, comprising an airbag body assembly (1). The airbag body assembly (1) comprises unit airbags (2) which are densely arranged; each unit airbag (2) comprises a filling cavity (3) and an adjustment cavity (4) which are vertically stacked; an elastic member (6) is provided in the filling cavity (3); and the adjustment cavities (4) of every two adjacent unit airbags (2) are communicated by means of a connecting air pipe (5), so as to prevent the elastic member (6) from blocking the connecting air pipe (5). The filling cavity (3) capable of independently wrapping the corresponding elastic member is additionally arranged in the corresponding unit airbag (2), so that it is ensured that the elastic member (6) can play a role in supporting and shaping the unit airbag (2), and the elastic member (6) and an isolator thereof can be effectively prevented from entering the connecting air pipe (5), thereby preventing the situation that the connecting air pipe (5) is prone to being blocked due to insertion of the elastic member (6), ensuring that the adjustment cavity (4) of each unit airbag (2) in the airbag body assembly (1) can achieve firmness adjustment by means of inflation and deflation, and improving use experience. A mattress using the airbag cushion.

Description

Airbag cushion and mattress using the same Technical Field

[0001] The present invention relates to the field of bedding, in particular to an airbag cushion and a mattress using the same. Background Art

[0002] Existing mattresses include an inflatable and deflable airbag cushion and a control box that adjusts the hardness of the airbag cushion. The airbag cushion includes several densely arranged unit airbags. A single unit airbag or multiple adjacent unit airbags are connected to the control box via independent air tubes. The control box adjusts the corresponding unit airbags through each air tube, thereby making the airbag cushion soft and hard adjustable. The unit airbags are filled with elastic parts. The elastic parts play a supporting and shaping role after the unit airbags are deflated. The elastic parts are made of elastic materials such as sponge. During use, the elastic parts will change their shape due to their own deformation and compression. The elastic parts are prone to powdering after long-term use. The air tubes are easily blocked by the elastic parts, resulting in the inability to adjust the hardness of some unit airbags. In turn, the hardness of each zone of the airbag cushion is inconsistent, affecting the user experience. Summary of the Invention

[0003] In order to address the deficiencies of the prior art, the present invention provides an airbag cushion and a mattress using the same, wherein independent filling chambers and adjustment chambers are provided in the unit airbag to ensure that the elastic parts in the filling chamber cannot enter the connecting air pipe, thereby preventing the connecting air pipe from being blocked, thereby ensuring that the unit airbag can be adjusted in softness and hardness through the adjustment chamber, thereby improving the user experience.

[0004] The present invention is achieved through the following method: an airbag cushion comprising a bladder assembly, wherein the bladder assembly includes densely arranged unit airbags, each of which includes a vertically stacked filling cavity and an adjustment cavity. The filling cavity is provided with an elastic member, and the adjustment cavities of adjacent unit airbags are connected by a connecting airway to prevent the elastic member from clogging the connecting airway. A filling cavity is added within the unit airbag to independently enclose the elastic member. This not only ensures that the elastic member can support and shape the unit airbag, but also effectively prevents the elastic member and its separated materials from entering the connecting airway, preventing clogging of the connecting airway. This ensures that the adjustment cavity of each unit airbag in the bladder assembly can be adjusted to a soft or hard state by inflation and deflation, thereby improving the user experience.

[0005] Preferably, the bladder assembly includes a vertically stacked upper bladder sheet and a lower bladder sheet. The upper bladder sheet is recessed upward to form an upper groove with a vertical projection extending therefrom, and the lower bladder sheet is recessed downward to form a lower groove with a vertical projection extending therefrom. The upper grooves and corresponding lower grooves are vertically stacked to form the unit airbag. The upper and lower bladder sheets are vertically stacked and fixedly connected, so that the upper grooves and the lower grooves correspond to each other and form the unit airbag. This allows for a one-time processing of the bladder assembly while ensuring that each unit airbag is independently arranged.

[0006] Preferably, the unit airbag includes a separator disposed between the upper and lower caplets, such that the upper groove and the separator, and the separator and the lower groove, respectively, enclose the filling chamber and the adjustment chamber. The separator, disposed between the upper and lower caplets, serves to position the upper and lower caplets, ensuring that the upper groove is vertically aligned with the corresponding lower groove to form the unit airbag.

[0007] Preferably, the filling chamber is positioned above the adjustment chamber, allowing the adjustment chamber to adjust its height through vertical deformation. The adjustment chamber is adjusted in height by inflation and deflation, ensuring consistent contact sensation for the user while lying down, while also allowing the adjustment chamber to adjust the firmness of the airbag cushion.

[0008] Preferably, the filling chamber is arranged below the adjustment chamber so that the adjustment chamber can be adjusted in softness and hardness by inflation and deflation. The filling chamber can provide stable support for the user, and the adjustment chamber can improve the user's lying feeling and enhance lying comfort by adjusting its own softness and hardness.

[0009] Preferably, the filling chamber is isolated from the outside world to maintain a constant air pressure. The filling chamber is sealed to ensure a constant air pressure. The elastic member guides deformation of the filling chamber when it is deformed by force, ensuring that the filling chamber maintains a predetermined contour, thereby providing stable support for the user.

[0010] Preferably, the contour of the elastic member matches the contour of the filling cavity. The surface contour of the elastic member is identical to the contour of the filling cavity. This ensures that the elastic member can utilize its own deformation to facilitate the deformation of the filling cavity under pressure, preventing the user from experiencing a foreign body sensation. Furthermore, when the filling cavity is not subjected to external forces, the elastic preload of the elastic member can be used to reset the deformation of the filling cavity, ensuring that the top surface of the airbag cushion remains flat.

[0011] Preferably, the connecting air pipe is connected across the corresponding side walls of adjacent regulating chambers. The adjacent regulating chambers are connected through the connecting air pipe, so that the adjacent regulating chambers can achieve synchronous regulation of the air pressure in the bladder assembly by mutual air supply.

[0012] Preferably, the airbag units are arranged in a matrix to divide the airbag assembly into multiple zones. The airbag cushion includes a common air pipe connected to the airbag assembly. This common pipe is located along the edge of each zone and sequentially connects to the adjustment chambers of the airbag units along the way. A common air pipe is provided to uniformly inflate and deflate the airbag assembly. Each zone of the airbag assembly is connected to the common air pipe via branch air pipes, allowing for uniform adjustment of softness and hardness. This effectively simplifies the piping structure, facilitating assembly and maintenance. The increased diameter of the common air pipe also improves deformation resistance, preventing squeeze and blockage, and enhancing the user experience.

[0013] Preferably, the bladder assembly includes a plurality of unit airbags arranged in a matrix and interconnected, the airbag cushion including an upper sponge layer and a lower sponge layer vertically stacked and enclosing a receiving cavity, the bladder assembly being disposed within the receiving cavity, the upper sponge layer and the lower sponge layer clamping the unit airbags through their own deformation. Providing the upper sponge layer and the lower sponge layer and clamping the bladder assembly not only ensures that the airbag cushion has a flat top and bottom surface, providing stable support for the user, but also utilizes the deformation of the upper sponge layer and the lower sponge layer to offset the deformation differences between the unit airbags, ensuring that the top surface of the airbag cushion remains flat, eliminating the foreign body sensation and improving the user experience. Furthermore, the upper sponge layer and the lower sponge layer can be utilized to isolate the unit airbags, preventing noise generated by friction between adjacent unit airbags and improving the quieting effect.

[0014] Preferably, the middle portion of the bottom surface of the upper sponge layer is recessed upward to form an upper groove, and the middle portion of the top surface of the lower sponge layer is recessed downward to form a lower groove. The upper sponge layer and the lower sponge layer are vertically stacked and enclosed by the upper groove and the lower groove to form the accommodating cavity. The upper sponge layer and the lower sponge layer are vertically stacked and enclosed by the upper groove and the lower groove to form the accommodating cavity. This cavity can not only completely wrap the bladder assembly and protect it, but also provide deformation space for the bladder assembly, guide the deformation of the unit airbags, and prevent mutual interference between adjacent unit airbags due to deformation offset.

[0015] Preferably, the height of the accommodating cavity matches the height of the unit airbag in the inflated state, ensuring that the volume inside the accommodating cavity meets the deformation requirements of the unit airbag when inflated and deflated, preventing the upper sponge layer and the lower sponge layer from vertically separating, and ensuring that the upper sponge layer and the lower sponge layer can always completely wrap the balloon assembly.

[0016] Preferably, the top wall of the upper groove extends downward to form an upper rib, and the bottom wall of the lower groove extends upward to form a lower rib. During installation, the upper and lower ribs converge vertically and fill the gaps between adjacent airbag units, thereby limiting horizontal displacement of the airbag units. The upper ribs can be inserted between the tops of adjacent airbag units, and the lower ribs can be inserted between the bottoms of adjacent airbag units. The upper and lower ribs are used to limit lateral displacement of the airbag units, ensuring that the airbag units can undergo vertical expansion and contraction deformation along their axes.

[0017] Preferably, the cavity wall of the accommodating cavity is adhered to the surface of the bladder assembly, so that the unit airbags can independently expand and contract vertically, and prevent the unit airbags from lateral deviation and mutual interference between adjacent unit airbags.

[0018] Preferably, the periphery of the slot of the upper slot is fixedly bonded to the periphery of the slot of the lower slot by glue, ensuring that the upper sponge layer and the lower sponge layer are firmly connected and completely wrap the bladder assembly, thereby guiding the deformation of the bladder assembly.

[0019] Preferably, the top surface of the upper sponge layer and the bottom surface of the lower sponge layer are both flat, which not only ensures that the user can be effectively supported and is suitable for all kinds of people, improving the user experience by expanding the audience, but also ensures that the airbag cushion can be placed stably above the spring cushion, and improves the anti-slip effect by increasing the contact area between the two, preventing the airbag cushion from horizontal displacement.

[0020] Preferably, a sponge layer or a wavy surface is placed on the top surface so that the top surface of the airbag cushion can match the surface contour of the user, exerting differentiated supporting forces on different torso sections of the user, thereby improving the user's lying comfort.

[0021] Preferably, vertical ventilation holes are provided between adjacent airbag units, and both the upper and lower sponge layers are provided with through-holes that align vertically with the corresponding ventilation holes. Aligning the ventilation holes and through-holes ensures airflow between the interior of the airbag cushion and the outside world, facilitating the discharge of moisture from the cushion and preventing the breeding of mites.

[0022] Preferably, the bladder assembly comprises multiple compartments, and the airbag cushion includes a shared air pipe connected to the bladder assembly. This shared air pipe is positioned along the edges of the compartments and sequentially connects to the airbag units along the way. A shared air pipe, which uniformly inflates and deflates the bladder assembly, is connected to each compartment via branched air pipes, enabling uniform adjustment of softness and hardness. This effectively simplifies the piping structure, facilitating assembly and maintenance. Furthermore, by increasing the diameter of the shared air pipe, it improves deformation resistance, prevents extrusion and blockage, and enhances the user experience.

[0023] A mattress comprises an upper quilted layer, a comfort layer, an airbag cushion, an isolation layer, a spring cushion, and a lower quilted layer, arranged in order from top to bottom. The mattress is provided with a peripheral edge and includes a control box, which adjusts the air pressure within the airbag cushion via an air supply assembly. The control box regulates the air pressure within the airbag cushion to ensure that the mattress's hardness meets the user's sleeping needs and enhances comfort. The comfort layer is arranged on the top surface of the airbag cushion to enhance comfort by increasing the deformation amplitude and reducing the foreign body sensation caused by the hardening of the airbag cushion. The spring cushion is arranged below the airbag cushion to provide overall support for the airbag cushion, ensuring that changes in the air pressure of the airbag cushion can be converted into adjustments to the user's support strength, thereby making the mattress soft and hard.

[0024] The beneficial effects of the present invention are as follows: a filling cavity that can independently wrap the elastic member is added to the unit airbag, which not only ensures that the elastic member can support and shape the unit airbag, but also effectively prevents the elastic member and its separated materials from entering the connecting air pipe, preventing the connecting air pipe from being blocked, and ensures that the adjustment cavity of each unit airbag in the bladder assembly can achieve soft and hard adjustment by inflation and deflation, thereby improving the user experience. In addition, the upper sponge layer and the lower sponge layer are provided and the bladder assembly is clamped, which not only ensures that the airbag cushion has a flat top and bottom surface, providing stable support for the user, but also utilizes the deformation of the upper sponge layer and the lower sponge layer to offset the deformation difference between the unit airbags, ensuring that the top surface of the airbag cushion remains flat, eliminating the foreign body sensation, and improving the user experience. The upper sponge layer and the lower sponge layer can also be used to isolate the unit airbags, preventing noise generated by mutual friction between adjacent unit airbags, thereby improving the quiet effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is a schematic cross-sectional view of the airbag cushion according to the first embodiment;

[0026] FIG2 is a schematic diagram of the exploded structure of the airbag cushion according to the first embodiment;

[0027] FIG3 is another cross-sectional structural schematic diagram of the airbag cushion according to the first embodiment;

[0028] FIG4 is a schematic structural diagram of the airbag cushion according to the first embodiment;

[0029] FIG5 is a schematic cross-sectional view of the airbag cushion according to the second embodiment;

[0030] FIG6 is a schematic cross-sectional view of the disassembled structure of the airbag cushion according to the second embodiment;

[0031] FIG7 is a schematic diagram of the disassembled structure of the airbag cushion according to the second embodiment;

[0032] FIG8 is a schematic structural diagram of the airbag cushion according to the second embodiment;

[0033] FIG9 is a schematic diagram of the exploded structure of the mattress according to Example 3;

[0034] In the figure: 1. bladder assembly, 2. unit airbag, 3. filling cavity, 4. regulating cavity, 5. connecting air tube, 6. elastic member, 7. upper bladder sheet, 8. upper groove, 9. lower bladder sheet, 10. lower groove, 11. separator, 12. common air tube, 13. upper quilted layer, 14. comfort layer, 15. isolation layer, 16. spring pad, 17. lower quilted layer, 18. surrounding edge, 19. control box, 20. upper sponge layer, 21. lower sponge layer, 22. upper groove, 23. lower groove, 24. upper rib, 25. lower rib, 26. air vent, 27. through hole, 28. common air tube. Modes for Carrying Out the Invention

[0035] The essential features of the present invention will be further described below with reference to the accompanying drawings and specific implementation methods.

[0036] Example 1:

[0037] This embodiment provides an airbag cushion.

[0038] As shown in Figure 1, an airbag cushion is composed of a bladder assembly 1, which includes densely arranged unit airbags 2. The unit airbags 2 include vertically stacked filling chambers 3 and adjustment chambers 4. The filling chambers 3 are provided with elastic parts 6. The adjustment chambers 4 of adjacent unit airbags 2 are connected by connecting air pipes 5 to prevent the elastic parts 6 from blocking the connecting air pipes 5. A filling chamber 3 for installing the elastic parts 6 is independently provided in the unit airbags 2. The elastic parts 6 are sealed and wrapped in the filling chamber 3, which not only ensures that the elastic parts 6 can support and shape the unit airbags 2, but also effectively prevents the elastic parts 6 and their separated materials from entering the connecting air pipes 5, preventing the connecting air pipes 5 from being blocked, and ensuring that the adjustment chambers 4 of each unit airbag 2 in the bladder assembly 1 can be adjusted to softness or hardness by inflation and deflation, thereby improving the user experience.

[0039] In this embodiment, the filling cavity 3 and the regulating cavity 4 are stacked vertically, and the filling cavity 3 can be used to wrap the elastic part 6 to ensure that the unit airbag 2 has stable support, and the regulating cavity 4 can also be used to adjust the air pressure so that the hardness of the unit airbag 2 can be adjusted.

[0040] In this embodiment, the filling chamber 3 is positioned above the adjustment chamber 4 so that the adjustment chamber 4 can adjust the height of the filling chamber 3 through vertical deformation. The filling chamber 3 is isolated from the external space so that the filling chamber 3 maintains a constant air pressure. The filling chamber 3 is located at the top of the unit airbag 2, so that the filling chamber 3 can provide constant support force to the lying user when under pressure, ensuring that the top of the unit airbag 2 has a constant deformation amplitude when supporting the user, thereby ensuring that the top surface of the airbag cushion can closely fit the bottom surface of the user through local depression. The adjustment chamber 4 is located at the bottom of the unit airbag 2. The adjustment chamber 4 adjusts the hardness by adjusting the air pressure, thereby adjusting the overall hardness of the airbag cushion.

[0041] In this embodiment, the capsule assembly 1 includes a vertically stacked upper capsule 7, a separator 11 and a lower capsule 9 (as shown in Figure 2), the separator 11 is arranged between the upper capsule 7 and the lower capsule 9, the upper capsule 7 is recessed upward to form an upper groove 8 with a vertical projection in a matrix shape, and the lower capsule 9 is recessed downward to form a lower groove 10 with a vertical projection in a matrix shape. During production, the upper capsule 7 is adhered to the top surface of the separator 11, and the lower capsule 9 is adhered to the bottom surface of the separator 11, which ensures that the upper groove 8 and the corresponding lower groove 10 are vertically aligned and cooperate with the separator 11 to form a vertically aligned filling cavity 3 and adjustment cavity 4, respectively, and the capsule assembly 1 can also be processed as a whole.

[0042] In this embodiment, the upper bag sheet 7 , the separator 11 and the lower bag sheet 9 are all integral structures, so that the relative positions of adjacent unit airbags 2 are fixed, thereby limiting the displacement of the unit airbags 2 .

[0043] In this embodiment, the connecting air pipe 5 spans the corresponding side walls of adjacent regulating chambers 4. Specifically, the four side walls of the regulating chamber 4 are provided with connecting air pipes 5 connected to the adjacent regulating chambers 4, which not only ensures that the air flow can flow quickly between the adjacent regulating chambers 4, ensures that the air pressure of each partition of the bladder assembly 1 changes synchronously, but also plays a role in positioning the relative positions of the regulating chambers 4.

[0044] In this embodiment, the contour of the elastic member 6 matches the contour of the filling cavity 3. The elastic member 6 can not only deform synchronously and accumulate deformation preload when the filling cavity 3 is under pressure, but also drive the filling cavity 3 to restore deformation when the filling cavity 3 is not under pressure, thereby preventing the filling cavity 3 from deforming after being under pressure for a long time and being reset.

[0045] In this embodiment, the unit airbags 2 are arranged in a matrix to divide the airbag assembly 1 into multiple zones. The airbag cushion includes a common air tube 12 (as shown in Figure 4) that communicates with the airbag assembly 1. This common air tube 12 is located along the edges of the zones and sequentially connects to the regulating chambers 4 of the unit airbags 2 along the zone. Each zone of the airbag assembly 1 is connected to the common air tube 12 via corresponding branch air tubes, enabling the common air tube 12 to regulate air pressure in each zone. This effectively simplifies the piping structure, facilitating assembly and maintenance. The increased diameter of the common air tube 12 also improves deformation resistance, preventing squeeze and blockage, and enhancing the user experience.

[0046] It can be understood that the filling chamber 3 can also be arranged below the adjustment chamber 4 (as shown in Figure 3), so that the adjustment chamber 4 can adjust the softness and hardness of the top of the bladder assembly 1 by inflating and deflating air, thereby improving the lying comfort by directly changing the user's contact sensation, which should also be regarded as a specific implementation method of this embodiment.

[0047] Example 2:

[0048] Compared with the first embodiment, this embodiment provides another airbag cushion.

[0049] As shown in Figures 5 and 6, an airbag cushion is composed of a bladder assembly 1, which includes a plurality of unit airbags 2 arranged in a matrix and interconnected. The airbag cushion includes an upper sponge layer 20 and a lower sponge layer 21 vertically stacked and enclosing a receiving cavity. The bladder assembly 1 is arranged in the receiving cavity, and the upper sponge layer 20 and the lower sponge layer 21 clamp the unit airbags 2 by deforming themselves. The upper sponge layer 20 and the lower sponge layer 21 are respectively covered on the top and bottom surfaces of the bladder assembly 1, so that the upper sponge layer 20 and the lower sponge layer 21 vertically clamp the bladder assembly 1, which not only ensures that the airbag cushion has a flat top and bottom surface, providing stable support for the user, but also utilizes the deformation of the upper sponge layer 20 and the lower sponge layer 21 to offset the deformation differences between the unit airbags 2, ensuring that the top surface of the airbag cushion remains flat, eliminating the foreign body sensation, and improving the user experience.

[0050] In this embodiment, the top surface of the upper sponge layer 20 and the bottom surface of the lower sponge layer 21 are both flat. The bottom surface of the upper sponge layer 20 matches the top contour of the bladder assembly 1, while the top surface of the lower sponge layer 21 matches the bottom contour of the bladder assembly 1. The top and bottom surfaces of the bladder assembly 1 are respectively covered by the upper sponge layer 20 and the lower sponge layer 21. This not only effectively fills the gaps between adjacent airbag units 2, resulting in a flat top and bottom surface for the airbag cushion, but also utilizes the upper sponge layer 20 and the lower sponge layer 21 to distribute the forces acting on the airbag cushion to adjacent airbag units 2, thereby improving support reliability.

[0051] In this embodiment, the middle portion of the bottom surface of the upper sponge layer 20 is recessed upward to form an upper groove 22, and the middle portion of the top surface of the lower sponge layer 21 is recessed downward to form a lower groove 23. The upper sponge layer 20 and the lower sponge layer 21 are vertically stacked and enclosed by the upper groove 22 and the lower groove 23 to form the accommodating cavity. The vertical projections of the upper groove 22 and the lower groove 23 overlap with each other and completely cover the vertical projection of the bladder assembly 1, so that the bladder assembly 1 can be completely wrapped in the accommodating cavity, which not only protects the bladder assembly 1, but also limits the lateral deviation of the unit airbag 2 by wrapping the bladder assembly 1, ensuring that the unit airbag can be vertically expanded and contracted. Specifically, the upper ribs 24 can be inserted to fill the gaps between the tops of adjacent unit airbags 2, and the lower ribs 25 can be inserted to fill the gaps between the bottoms of adjacent unit airbags 2.

[0052] In this embodiment, the top wall of the upper groove 22 extends downward to form an upper rib 24, and the bottom wall of the lower groove 23 extends upward to form a lower rib 25. During installation, the upper and lower ribs 24 and 25 are vertically aligned and fill the gaps between adjacent unit airbags 2, thereby limiting the horizontal displacement of the unit airbags 2. Specifically, the upper and lower ribs 24 and 25 are arranged in a grid pattern (as shown in FIG7 ), so that the upper and lower grooves 22 and 23 are divided into unit grooves in a matrix. The top and bottom of each unit airbag 2 are respectively inserted into the corresponding unit groove. This ensures that the unit airbag 2 can expand and contract within the corresponding unit groove, prevents the unit airbag 2 from lateral displacement, and ensures that the axis of the unit airbag 2 always maintains a vertical posture, effectively resisting the gravity from the user.

[0053] In this embodiment, the periphery of the notch of the upper groove 22 is fixedly bonded to the periphery of the notch of the lower groove 23 by glue. The periphery of the bottom surface of the upper sponge layer 20 is bonded to the periphery of the top surface of the lower sponge layer 21 by glue, ensuring that the upper sponge layer 20 and the lower sponge layer 21 are fixed relative to each other, thereby clamping and positioning the bladder assembly 1.

[0054] In this embodiment, the height of the accommodating cavity matches the height of the airbag unit 2 in the inflated state. The airbag unit 2 expands and contracts vertically within the accommodating cavity by inflation and deflation. This ensures that the airbag unit 2 can adjust the softness and hardness of the bladder assembly 1 by inflation and deflation, and also ensures that the height of the accommodating cavity meets the expansion and contraction requirements of the airbag unit 2, preventing the upper sponge layer 20 and the lower sponge layer 21 from vertically separating due to the expansion of the airbag unit 2.

[0055] In this embodiment, the upper sponge layer 20 and the lower sponge layer 21 can be formed into unit grooves by various processing methods, including but not limited to the following methods:

[0056] Method 1: Processing by cutting, first forming a block sponge with the required size by cutting, and then forming unit grooves on the surface of the block sponge by cutting, thereby forming an upper sponge layer 20 and a lower sponge layer 21 with unit grooves.

[0057] Method 2: Processing by casting, pre-setting a mold for processing the upper sponge layer 20 and the lower sponge layer 21, pouring the sponge raw material into the mold and allowing it to fill the mold cavity through foaming, thereby forming the upper sponge layer 20 and the lower sponge layer 21 with unit grooves.

[0058] In this embodiment, vertically extending ventilation holes 26 are provided between adjacent airbag units 2 (as shown in FIG8 ). Both the upper sponge layer 20 and the lower sponge layer 21 are provided with through-holes 27 vertically aligned with the corresponding ventilation holes 26. The alignment of ventilation holes 26 and through-holes 27 facilitates airflow, ensuring that moisture within the airbag cushion is promptly discharged, thereby preventing the breeding of mites.

[0059] In this embodiment, the airbag units 2 are arranged in a matrix to divide the airbag assembly 1 into multiple zones. The airbag cushion includes a common air pipe 28 connected to the airbag assembly 1. This common air pipe 28 is positioned along the edges of the zones and sequentially connects to the regulating chambers of the airbag units 2 along the zone. Each zone of the airbag assembly 1 is connected to the common air pipe 28 via corresponding branch air pipes, enabling the common air pipe 28 to regulate the air pressure in each zone. This not only effectively simplifies the piping structure, facilitating assembly and maintenance, but also increases the diameter of the common air pipe 28 to improve deformation resistance, prevent squeeze and blockage, and enhance the user experience.

[0060] Understandably, to enhance the connection strength between the accommodating cavity and the bladder assembly 1, the cavity wall of the accommodating cavity can be glued to the surface of the bladder assembly 1, thereby firmly connecting the upper sponge layer 20, the lower sponge layer 21, and the bladder assembly 1. This should also be considered a specific implementation of this embodiment. Furthermore, because the cavity wall of the accommodating cavity is glued to the surface of the bladder assembly 1, adjacent airbag units 2 are prevented from generating noise due to friction, effectively enhancing the quietness of the airbag cushion when the user is lying down.

[0061] It can be understood that the top surface of the upper sponge layer 20 is a wavy curved surface to adapt to the differentiated usage needs of users, which should also be regarded as a specific implementation method of this embodiment.

[0062] The other structures and effects of the airbag cushion described in this embodiment are consistent with those in the first embodiment and will not be described in detail.

[0063] Example 3:

[0064] Compared with the first or second embodiment, this embodiment provides another mattress.

[0065] As shown in Figure 9, the mattress consists of, from top to bottom, an upper quilted layer 13, a comfort layer 14, an airbag cushion, an isolation layer 15, a spring cushion 16, and a lower quilted layer 17. The mattress is provided with a peripheral edge 18 and includes a control box 19, which regulates the air pressure within the airbag cushion via an air supply assembly. The control box 19 can be located away from the airbag cushion and is connected to the airbag cushion via a shared air pipe 12. This simplifies piping, facilitating installation and maintenance, while also ensuring the structural strength of the shared air pipe 12, improving extrusion performance and preventing extrusion blockage.

[0066] In this embodiment, the periphery of the upper quilted layer 13 and the lower quilted layer 17 are fixedly connected and completely wrap the comfort layer 14, the airbag cushion, the isolation layer 15 and the spring cushion 16, which not only protects and shapes the mattress, but also facilitates disassembly and cleaning.

[0067] In this embodiment, the comfort layer 14 is arranged above the airbag cushion, which can not only effectively eliminate the foreign body sensation caused by the uneven top surface of the airbag cushion, but also fit the surface of the user through its own depression, thereby improving lying comfort.

[0068] In this embodiment, the isolation layer 15 is arranged between the airbag cushion and the spring cushion 16. The airbag cushion moves relative to the spring cushion 16 due to inflation and deflation. The isolation layer 15 can effectively offset the relative displacement between the bottom surface of the airbag cushion and the top surface of the spring cushion 16, ensuring that the airbag cushion can deform normally.

[0069] In this embodiment, the spring pad 16 is arranged below the airbag cushion to provide vertical support for the airbag cushion, ensuring that the vertical deformation generated when the airbag cushion is inflated can be transmitted upward and act on the user's surface, thereby improving the user's lying experience.

[0070] In this embodiment, the surrounding edge 18 is arranged around the spring pad 16, which not only protects the spring pad 16, but also improves the softness of the side wall of the mattress, thereby providing more comfortable support for users who lean on the edge of the mattress.

[0071] The other structures and effects of the airbag cushion described in this embodiment are consistent with those of the first or second embodiment and will not be described in detail.

Claims

1. An airbag cushion, comprising a bladder assembly (1), wherein the bladder assembly (1) comprises densely arranged unit airbags (2), characterized in that: The unit airbag (2) comprises a filling chamber (3) and an adjustment chamber (4) stacked vertically, an elastic member (6) being provided in the filling chamber (3), and the adjustment chambers (4) of adjacent unit airbags (2) are connected via a connecting air pipe (5) to prevent the elastic member (6) from blocking the connecting air pipe (5).

2. The airbag cushion according to claim 1, characterized in that: The bladder assembly (1) comprises an upper bladder sheet (7) and a lower bladder sheet (9) stacked vertically, wherein the upper bladder sheet (7) is recessed upward to form an upper groove (8) separated in vertical projection, and the lower bladder sheet (9) is recessed downward to form a lower groove (10) separated in vertical projection, and the upper groove (8) and the corresponding lower groove (10) are vertically stacked to form the unit airbag (2).

3. The airbag cushion according to claim 2, characterized in that: The unit airbag (2) comprises a separator (11) arranged between an upper bag sheet (7) and a lower bag sheet (9), so that the filling chamber (3) and the regulating chamber (4) are respectively enclosed between the upper groove (8) and the separator (11), and between the separator (11) and the lower groove (10).

4. The airbag cushion according to claim 1, characterized in that: The filling chamber (3) is arranged above the regulating chamber (4), so that the regulating chamber (4) can adjust the height of the filling chamber (3) through vertical deformation; or, the filling chamber (3) is arranged below the regulating chamber (4), so that the regulating chamber (4) can achieve softness and hardness adjustment through inflation and deflation.

5. The airbag cushion according to claim 1, characterized in that: The filling chamber (3) is isolated from the external space so that the filling chamber (3) maintains a constant air pressure.

6. The airbag cushion according to claim 5, characterized in that: The contour of the elastic member (6) matches the contour of the filling cavity (3).

7. The airbag cushion according to claim 1, characterized in that: The connecting air pipe (5) is connected across corresponding side walls of adjacent regulating chambers (4).

8. The airbag cushion according to claim 1, characterized in that: The unit airbags (2) are arranged in a matrix to divide the bladder assembly (1) into a plurality of partitions. The airbag cushion comprises a common air pipe (12) in communication with the bladder assembly (1). The common air pipe (12) is arranged along the edge of the partition and is in communication with the adjustment chambers (4) of the unit airbags (2) along the way in sequence.

9. An airbag cushion according to any one of claims 1 to 8, characterized in that: The unit airbags (2) are arranged in a matrix and are interconnected. The airbag cushion comprises an upper sponge layer (20) and a lower sponge layer (21) which are vertically stacked and enclosed to form a receiving cavity. The airbag assembly (1) is arranged in the receiving cavity. The upper sponge layer (20) and the lower sponge layer (21) clamp the unit airbags (2) by deforming themselves.

10. The airbag cushion according to claim 9, characterized in that: The middle portion of the bottom surface of the upper sponge layer (20) is recessed upward to form an upper groove (22), and the middle portion of the top surface of the lower sponge layer (21) is recessed downward to form a lower groove (23). The upper sponge layer (20) and the lower sponge layer (21) are vertically stacked and enclosed by the upper groove (22) and the lower groove (23) to form the accommodating cavity.

11. The airbag cushion according to claim 10, characterized in that: The height of the accommodating cavity matches the height of the unit airbag (2) in an inflated state.

12. The airbag cushion according to claim 10, characterized in that: The top wall of the upper groove (22) extends downward to form an upper rib (24), and the bottom wall of the lower groove (23) extends upward to form a lower rib (25). During installation, the upper rib (24) and the lower rib (25) are vertically brought together to fill the gap between adjacent unit airbags (2) to limit the horizontal deviation of the unit airbags (2).

13. The airbag cushion according to claim 12, characterized in that: The cavity wall of the accommodating cavity is bonded and adhered to the surface of the capsule assembly (1).

14. The airbag cushion according to claim 10, characterized in that: The periphery of the slot opening of the upper slot (22) and the periphery of the slot opening of the lower slot (23) are bonded and fixedly connected by glue.

15. The airbag cushion according to claim 14, characterized in that: The top surface of the upper sponge layer (20) and the bottom surface of the lower sponge layer (21) are both flat surfaces; or, the top surface of the upper sponge layer (20) is a wavy curved surface.

16. The airbag cushion according to claim 9, characterized in that: Vertically penetrating air holes (26) are provided between adjacent unit air bags (2), and through holes (27) vertically aligned with the corresponding air holes (26) are provided on the upper sponge layer (20) and the lower sponge layer (21).

17. The airbag cushion according to claim 9, characterized in that: The bladder assembly (1) comprises a plurality of partitions, and the airbag cushion comprises a common air pipe (28) in communication with the bladder assembly (1); the common air pipe (28) is arranged along the edge of the partition and is in communication with the unit airbags (2) along the way in sequence.

18. A mattress using the airbag cushion according to any one of claims 1 to 17, comprising an upper quilted layer (13), a comfort layer (14), an airbag cushion, an isolation layer (15), a spring cushion (16) and a lower quilted layer (17) arranged in order from top to bottom, wherein the mattress is provided with a surrounding edge (18) at its periphery, characterized in that: The mattress comprises a control box (19), and the control box (19) adjusts the air pressure in the airbag cushion through an air supply component.

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