Air bag cushion and mattress using same

Abstract

The invention relates to an airbag cushion and a mattress using the same. An existing unit bag can only stretch out and draw back vertically, and use comfort is affected. The air bag comprises air bag strips which are tightly arranged in the front-back direction, each air bag strip comprises unit bags which are linearly arranged, each unit bag comprises an upper bag body and a lower bag body, and the middle of the bottom face of each upper bag body and the middle of the top face of the corresponding lower bag body are bonded and communicated through welding, so that the top face of each upper bag body can freely swing and is matched and attached to a bearing object. The middle parts of the bottom surface of the upper bag body and the top surface of the lower bag body are adhered and communicated, so that the limitation on the horizontal inclination of the upper bag body is effectively reduced, the top surface of the unit bag can freely turn and is attached to the surface of a user, and the lying comfort is improved.

Description

Technical Field

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

[0002] The existing airbag cushion includes airbag strips arranged closely in the front-back direction, and the airbag strips include unit capsules arranged in a straight line. The unit capsules on the same airbag strip have a top surface and a bottom surface that are raised, so that the airbag cushion has a flat top surface and a bottom surface, thereby providing a stable support for the user. The unit capsule includes a vertically stacked capsule cavity, and the capsule cavity can realize vertical expansion and contraction deformation when inflating and deflating. The vertical expansion and contraction deformation generated by each capsule cavity can be superimposed and accumulated to make the unit capsule have a larger vertical deformation space. The capsule cavity has a good structure to resist horizontal deformation, so that the capsule cavity can only perform vertical expansion and contraction deformation, and ensure that the top surface of the capsule cavity always maintains a horizontal posture. Since the user surface is a curved surface, when the user lies down and conflicts with the top surface of the capsule cavity, the top surface of the capsule cavity will not be able to match and fit with the user's performance due to the horizontal setting. The top surface of the airbag cushion is adaptively changed according to the user's performance contour, resulting in the user being concentrated due to the reduction of the contact area between the surface and the top surface of the airbag cushion, affecting the comfort of lying down. 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, in which the middle parts of the bottom surface of the upper bladder body and the top surface of the lower bladder body are adhered and communicated with each other, effectively reducing the restriction on the horizontal inclination of the upper bladder body, so that the direction of the top surface of the unit bladder can be freely turned and fit with the surface of the user, thereby improving the lying comfort.

[0004] The present invention is achieved in the following manner: an airbag cushion includes airbag strips tightly arranged in the front-to-back direction, the airbag strips include unit capsules arranged in a straight line, the unit capsules include an upper capsule body and a lower capsule body, and the middle parts of the bottom surface of the upper capsule body and the top surface of the lower capsule body are bonded and connected by welding so that the top surface of the upper capsule body can swing freely and match and fit with the supporting object. The middle part of the bottom surface of the upper capsule and the middle part of the top surface of the lower capsule are welded together to form an annular welding area, which reduces the restriction on the lateral tilting movement of the upper capsule by reducing the outer edge diameter of the welding area, so that the upper capsule can be tilted and swung with the middle part of the bottom surface as the center under the action of external force, thereby making the axis of the upper capsule tilt and expand and contract along the axis direction, ensuring that the direction of the top surface of the upper capsule can be swung and adjusted to match and fit with the user's surface, and improving the supporting reliability by increasing the contact area with the user's surface, thereby effectively improving the lying comfort, and also providing a channel connecting the upper capsule and the lower capsule through the space in the middle of the welding area, ensuring that the air pressure in the upper capsule and the lower capsule can be adjusted synchronously, thereby realizing the free adjustment of the softness and hardness of the unit capsule, thereby improving the user experience.

[0005] Preferably, the outer edge of the bottom surface of the upper capsule body and the outer edge of the bottom surface of the lower capsule body form a matching annular limiting surface, and when the upper capsule body is tilted to a preset angle, the limiting surface is used to resist and limit the upper capsule body's axis from excessive tilting. This effectively prevents the upper capsule body from excessively tilting its axis, and ensures that the upper capsule body can automatically reset to its original state with its axis vertical after the external force disappears. After the unit capsule is inflated, an angle is formed between the outer edge of the upper cover sheet and the outer edge of the lower cover sheet for the upper capsule body to swing, providing a swinging space for the upper capsule body.

[0006] Preferably, an upper air port is provided in the middle of the bottom surface of the upper capsule body, and a lower air port is provided in the middle of the top surface of the lower capsule body. The periphery of the upper air port and the periphery of the lower air port are vertically overlapped and welded to make the upper air port and the lower air port aligned and connected. The periphery of the upper air port and the periphery of the lower air port are attached to each other and welded to form an annular welding area, ensuring that a channel for connecting the upper air port and the lower air port is formed in the welding area. The axes of the upper air port, the lower air port and the unit capsule are arranged in the same line with each other, ensuring that the annular welding area is arranged coaxially with the unit capsule, which is convenient for the upper capsule body to tip over in any radial direction and can also provide support for the upper capsule body, ensuring that the upper capsule body can provide support force outward along its axis when it swings to any angle, and ensuring that the upper capsule body can be restored to its original state with the axis vertical when the external force is removed.

[0007] Preferably, the welding area formed by overlapping the periphery of the upper air port and the periphery of the lower air port is annular, and the width of the welding area is A, A≥5mm. The sealing reliability is improved by increasing the width of the welding area, and the outer edge diameter is reduced by limiting the width of the welding area, thereby improving the tilt and swing sensitivity of the upper capsule body.

[0008] Preferably, the ratio of the outer edge diameter of the welding area to the outer edge diameter of the unit capsule is B, B≤0.5. The outer edge diameter of the welding area is reduced by limiting parameter B, thereby improving the swing sensitivity of the upper capsule body and ensuring that the top surface of the unit capsule can be matched and fitted with the user's surface through swing.

[0009] Preferably, the upper capsule body comprises an upper cover portion and an upper cover sheet, wherein the upper cover portion is provided with an upper capsule cavity exposed downward, and the upper cover sheet covers the bottom surface of the upper cover portion and blocks the upper capsule cavity. The upper cover portion and the lower cover sheet are both one-piece independent components, which are convenient for batch processing and can also be formed by welding and bonding to improve production efficiency. The upper cover portion and the upper cover sheet are bonded and fixed to form an upper capsule cavity with an upper air port, and the outer edge diameter of the welding area is reduced by reducing the diameter of the upper air port, thereby improving the swing sensitivity of the upper capsule body.

[0010] Preferably, the upper air port is opened in the middle of the upper cover sheet, and the upper cover sheet not only seals the upper bag cavity, but also facilitates the adjustment of the air pressure in the upper bag cavity through the opened upper air port.

[0011] Preferably, the periphery of the upper cover sheet and the periphery of the bottom surface of the upper cover portion are sealed by welding, and the periphery of the upper cover sheet and the periphery of the bottom surface of the upper cover portion are overlapped and welded to form an annular welding area between the outer edge of the upper cover sheet and the periphery of the bottom surface of the upper cover portion, thereby ensuring that the upper cover sheet and the upper cover portion are sealed and fixedly connected.

[0012] Preferably, the upper cover portion is formed by integral injection molding, which can utilize the opening on the bottom surface of the upper cover portion to achieve demolding, facilitate batch processing, ensure that the wall surface of the upper cover portion has good sealing, and ensure that the upper cover portion has axial expansion and contraction range when inflating and deflation, thereby facilitating providing differentiated support strength for users and improving lying comfort.

[0013] Preferably, the airbag strip includes a lower bottom sheet and a lower cover sheet in the form of a long strip, and the edges of the lower bottom sheet and the lower cover sheet are overlapped and welded so that the lower capsules are mutually connected to form an integral shape. The lower bottom sheet and the lower cover sheet are overlapped and welded so that the lower capsules on the same airbag strip are mutually connected to form an integral structure, which is convenient for fixing the upper capsule with the corresponding lower capsule, and also ensures that the lower capsules are mutually connected, which is convenient for adjusting the air pressure in each upper capsule, and ensures that the distance between adjacent unit capsules meets the swing requirements of the upper capsule, prevents the adjacent upper capsules from interfering with each other due to different axis inclination angles, and ensures that each upper capsule can swing freely.

[0014] Preferably, the lower bottom sheet includes a unit bottom area arranged in a straight line and an air path bottom area connected between adjacent unit bottom areas, and the lower cover sheet includes a unit cover area arranged in a straight line and an air path cover area connected between adjacent unit cover areas. The corresponding unit bottom areas and unit cover areas are overlapped and enclosed to form the lower capsule, and the corresponding air path bottom areas and air path cover areas are overlapped and enclosed to form an air path channel spanning between adjacent lower capsules. The unit bottom areas and unit cover areas are overlapped and the periphery is welded to form a lower capsule for supporting and positioning the upper capsule, and the air path bottom areas and air path cover areas are overlapped and the edges are welded to form an air path channel for connecting adjacent lower capsules, which not only ensures that the lower capsules are connected to each other, but also ensures that the relative positions of the lower capsules are fixed, and provides effective support for the upper capsules, ensuring that each upper capsule can swing freely.

[0015] Preferably, the lower air port is opened in the middle of the unit cover area, and the periphery of the lower air port can be welded to the periphery of the upper air port to ensure the sealed connection between the upper capsule and the lower capsule, and also ensure that the upper capsule and the lower capsule are aligned and fixed, so that the upper capsule can be tilted in any direction.

[0016] Preferably, the periphery of the unit bottom area and the unit cover area are sealed by overlapping welding to form a lower bladder body, which not only improves the supporting reliability by increasing the outer edge diameter of the lower bladder body to prevent the upper bladder body from tipping over as a whole due to excessive tilting, but also ensures the sealing of the lower bladder body to prevent air leakage.

[0017] Preferably, the side edges of the gas path bottom area and the gas path cover area are sealed by welding to form the gas path channel. The side edges of the gas path bottom area and the gas path cover area are welded to form the gas path channel, which not only ensures that the gas path channel has good sealing along the way to prevent air leakage, but also ensures that the two ends of the gas path channel are connected to the lower bag cavity of the corresponding lower bag body, thereby ensuring that the air pressure in each unit bag on the same air bag strip can be synchronously adjusted.

[0018] Preferably, the front and rear edges of the lower bottom sheet are both provided with connecting edges, and the adjacent airbag strips are welded and adhered by overlapping the corresponding connecting edges. The adjacent airbag strips are closely arranged in the front-to-back direction and are welded and fixed by overlapping the connecting edges, which not only ensures that the adjacent airbag strips are firmly connected, but also ensures that the relative positions of the adjacent airbag strips are fixed, and are sequentially assembled to form the airbag cushion.

[0019] A mattress using the airbag cushion comprises a cushion body, wherein the cushion body comprises an airbag cushion and a limit block for clamping and wrapping the airbag cushion. The limit block plays a role in clamping, positioning and protecting the airbag cushion, ensuring that the airbag cushion is adjusted in softness and hardness by inflating and deflating air at a preset position, thereby improving the comfort of the cushion body.

[0020] The beneficial effects of the present invention are as follows: the middle part of the bottom surface of the upper capsule body and the middle part of the top surface of the lower capsule body are welded together to form an annular welding area, which reduces the restriction on the lateral tilting movement of the upper capsule body by reducing the outer edge diameter of the welding area, so that the upper capsule body can be tilted and swung with the middle part of the bottom surface as the center under the action of external force, thereby making the axis of the upper capsule body tilt and stretch along the axis direction, ensuring that the direction of the top surface of the upper capsule body can be swung and adjusted to match and fit with the user's surface, and the supporting reliability is improved by increasing the contact area with the user's surface, thereby effectively improving the lying comfort, and also providing a channel connecting the upper capsule body and the lower capsule body through the space provided in the middle of the welding area, ensuring that the air pressure in the upper capsule and the lower capsule body can be adjusted synchronously, thereby realizing the free adjustment of the softness and hardness of the unit capsule, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the airbag strip described in Example 1;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of the airbag strip described in Example 1;

[0023] Figure 3 This is a schematic diagram of the structure of the airbag cushion described in Example 1;

[0024] Figure 4 This is a schematic diagram of the disassembled structure of the mattress described in Example 2;

[0025] In the figure: 1, airbag strip, 2, upper bladder body, 3, lower bladder body, 4, upper air port, 5, lower air port, 6, upper cover, 7, upper cover sheet, 8, lower bottom sheet, 9, lower cover sheet, 10, unit bottom area, 11, air path bottom area, 12, unit cover area, 13, air path cover area, 14, connecting edge, 15, airbag cushion, 16, limit block. DETAILED DESCRIPTION

[0026] The essential features of the present invention are further described below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Embodiment 1:

[0028] This embodiment provides an airbag cushion.

[0029] like Figure 1 and 2 An airbag cushion is shown, comprising an airbag strip 1 tightly arranged in the front-to-back direction, wherein the airbag strip 1 comprises unit capsules arranged in a straight line, wherein the unit capsules comprise an upper capsule body 2 and a lower capsule body 3, wherein the middle parts of the bottom surface of the upper capsule body 2 and the top surface of the lower capsule body 3 are bonded and interconnected by welding, so that the top surface of the upper capsule body 2 can swing freely and match and fit with the supporting object. The middle part of the bottom surface of the upper bladder body 2 and the middle part of the top surface of the lower bladder body 3 are welded together to form an annular welding area, which reduces the restriction on the lateral tilting movement of the upper bladder body 2 by reducing the outer edge diameter of the welding area, so that the upper bladder body 2 can be tilted and swung with the middle part of the bottom surface as the center under the action of external force, so that the orientation of the top surface of the upper bladder body 2 can be adjusted to match and fit with the user's surface, and the supporting reliability is improved by increasing the contact area with the user's surface, thereby effectively improving the lying comfort. A channel connecting the upper bladder body 2 and the lower bladder body 3 is set through the space in the middle of the welding area to ensure that the air pressure in the upper bladder body 2 and the lower bladder body 3 can be adjusted synchronously, thereby realizing the free adjustment of the softness and hardness of the unit bladder, thereby improving the user experience.

[0030] In this embodiment, an upper air port 4 is provided in the middle of the bottom surface of the upper sac body 2, and a lower air port 5 is provided in the middle of the top surface of the lower sac body 3. The periphery of the upper air port 4 and the periphery of the lower air port 5 are vertically overlapped and welded to make the upper air port 4 and the lower air port 5 aligned and connected. The bottom surface of the upper capsule 2 is located in the peripheral area of ​​the upper air port 4 and the top surface of the lower capsule 3 is located in the peripheral area of ​​the lower air port 5, which are vertically stacked and welded to form an annular welding area, which not only ensures that the upper capsule 2 and the lower capsule 3 are vertically stacked and fixedly connected to prevent the two from detaching, ensures that the air path is unobstructed and can adjust the hardness by inflation and deflation, but also reduces the restriction on the radial swing of the upper capsule 2 by reducing the outer edge diameter of the welding area, effectively improves the radial swing sensitivity of the upper capsule 2, and thus ensures that the upper capsule 2 can achieve matching and fit between the top surface and the user's surface through swinging, improves the support reliability by increasing the contact area, and thus improves the lying comfort, and ensures that the lower capsule 3 can provide stable support for the upper capsule 2, and ensures that the upper capsule 2 can use its own reset preload force to return to the vertically set posture of the axis when there is no external force.

[0031] In this embodiment, the ratio of the outer diameter of the welding area to the outer diameter of the unit capsule is B, B≤0.5. A welding area of ​​reasonable size is set between the periphery of the upper air port 4 and the periphery of the lower air port 5, which not only ensures that the width of the welding area meets the sealing requirements, but also ensures that the diameters of the upper air port 4 and the lower air port 5 meet the air flow requirements, and also ensures that the ratio of the outer diameter of the welding area to the outer diameter of the unit capsule meets the preset requirements, thereby ensuring that the radial swing of the upper capsule body 2 has less resistance, thereby improving the swing flexibility, and ensuring that the top surface of the upper capsule body 2 can match and fit the user's surface.

[0032] In this embodiment, the upper bladder body 2 includes an upper cover portion 6 and an upper cover sheet 7. The upper bladder body 6 is provided with an upper bladder cavity exposed downward. The upper cover sheet 7 covers the bottom surface of the upper bladder body 6 and blocks the upper bladder cavity. The airbag strip 1 includes a lower bottom sheet 8 and a lower cover sheet 9 in a long strip shape. The edges of the lower bottom sheet 8 and the lower cover sheet 9 are overlapped and welded to connect the lower bladder body 3 to form a whole. The upper bladder body 6, the upper cover sheet 7, the lower bottom sheet 8 and the lower cover sheet 9 are all independently processed and formed into an integrated component, which is convenient for batch processing and assembly to form the airbag strip 1. During installation, first, cover the lower cover sheet 9 on the lower bottom sheet 8 and weld them along the edges of the overlapping area of ​​the two, which not only ensures that the two are fixedly connected, but also can enclose and form a lower bag cavity connected through the air path; then, overlap the upper cover part 6 on the upper cover sheet 7 and weld the periphery of the overlapping area to make the two fixedly connected and form an upper bag body 2 with an upper air port 4 at the bottom; finally, cover the upper bag body 2 on the corresponding lower bag body 3, and overlap and weld the periphery of the upper air port 4 and the periphery of the lower air port 5 to make the upper air port 4 and the lower air port 5 sealed and connected.

[0033] After being installed in place, the upper bladders 2 are independently fixed to the corresponding lower bladders 3, and each upper bladder 2 can swing independently and fit the user's surface. The lower bladders 3 on the airbag strip 1 are an integral structure, interconnected and fixed, which can not only improve the stability of supporting the upper bladders 2, but also ensure that the air pressure in each upper bladder 2 can be adjusted synchronously.

[0034] In this embodiment, the periphery of the upper cover sheet 7 and the periphery of the bottom surface of the upper cover portion 6 are sealed by welding and adhesion. The bottom surface of the upper cover portion 6 is provided with an opening, and the periphery of the opening is overlapped with the periphery of the upper cover sheet 7 and welded and adhered to form a welding area, which is convenient for processing and effectively improves the sealing reliability. The welding point is located at the junction of the bottom wall and the side wall of the upper sac body 2, which prevents cracking and leakage by reducing deformation.

[0035] In this embodiment, the upper air port 4 is opened in the middle of the upper cover sheet 7, and the lower air port 5 is opened in the middle of the unit cover. The outer edge diameters of the corresponding unit covers in the upper cover sheet 7 and the lower cover sheet 9 are the same, the diameters of the upper air port 4 and the lower air port 5 are the same, the unit covers on the upper cover sheet 7 and the lower cover sheet 9 are vertically aligned and stacked, and the peripheral areas of the upper air port 4 and the peripheral areas of the lower air port 5 are overlapped and welded to form an annular welding area, so that the upper capsule 2 can swing freely radially with the axis of the lower air port 5 as the center.

[0036] In this embodiment, the upper cover portion 6 is formed by integral injection molding, which is convenient for batch processing and ensures that the upper cover portion 6 has good sealing performance. In addition, the upper cover plate 7, the lower cover plate 9 and the lower bottom surface can also be processed by injection molding, which should all be regarded as specific implementation methods of this embodiment.

[0037] In this embodiment, the lower bottom sheet 8 includes a linearly arranged unit bottom area 10 and an air path bottom area 11 connected between adjacent unit bottom areas 10, and the lower cover sheet 9 includes a linearly arranged unit cover area 12 and an air path cover area 13 connected between adjacent unit cover areas 12. The peripheries of the unit bottom area 10 and the unit cover area 12 are sealed by overlapping welding to form a lower capsule 3, and the side edges of the air path bottom area 11 and the air path cover area 13 are sealed by welding to form an air path channel spanning between adjacent lower capsules 3. The lower bottom sheet 8 and the lower cover sheet 9 have the same periphery profile, so that the two can be vertically aligned and overlapped and fixed by welding along the outer edge of the overlapping area. The unit bottom area 10 and the unit cover area 12 are overlapped and enclosed to form a lower bag body 3 with a lower bag cavity. The air path bottom area 11 and the air path cover area 13 are overlapped and enclosed to form an air path channel spanning between adjacent lower bag cavities. Multiple lower bag bodies 3 are arranged in a straight line, and the air path channels are set between adjacent lower bag bodies 3. The air path channels are all located on the same straight line, so that the airbag strip 1 is in a long strip shape, which is convenient for splicing to form an airbag cushion 15.

[0038] In this embodiment, the welded area formed by the overlapped periphery of the upper air port 4 and the lower air port 5 is annular, and the width of the welded area is A, A ≥ 5 mm, which not only improves the sealing reliability by increasing the width of the welded area, but also reduces its outer edge diameter by limiting the width of the welded area, thereby improving the tilting and swinging sensitivity of the upper capsule 2. In addition, the width of the welded area formed by the overlapped welding between the upper cover part 6 and the upper cover sheet 7, and between the lower cover sheet 9 and the lower bottom sheet 8 should also meet the above requirements.

[0039] In this embodiment, the front and rear edges of the lower bottom sheet 8 are both provided with connecting edges 14 (such as Figure 3 As shown, the adjacent airbag strips 1 are welded and adhered by overlapping corresponding connecting edges 14. The adjacent airbag strips 1 are welded and fixed by overlapping corresponding connecting edges 14 so that the adjacent airbag strips 1 have the same spacing, ensuring that the airbag cushion 15 has unit capsules arranged in a matrix.

[0040] Embodiment 2:

[0041] Compared with the first embodiment, this embodiment provides a mattress.

[0042] like Figure 4 As shown, the mattress includes a cushion body, which includes an airbag cushion 15 and a stopper 16 for clamping and wrapping the airbag cushion 15. The stopper 16 clamps, positions and protects the airbag cushion 15, ensuring that the airbag cushion 15 is adjusted in hardness and softness by inflating and deflating air at a preset position, thereby improving the comfort of the cushion body.

[0043] In this embodiment, the limit block 16 is provided with perforations, and the number and positions of the perforations are matched one by one with the unit capsules on the airbag cushion 15. During installation, the limit block 16 wraps the airbag cushion 15, and the perforations are placed on the corresponding unit capsules, so that each unit capsule is limited by the inner wall of the perforation, ensuring that the unit capsule can achieve vertical expansion and contraction under the guidance of the perforations, and then the hardness can be adjusted by adjusting the air pressure to provide comfortable support for the user.

[0044] 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.

Claims

1. An airbag cushion, comprising airbag strips (1) arranged closely in the front-to-back direction, wherein the airbag strips (1) comprise unit cells arranged in a straight line, characterized in that: The unit capsule comprises an upper capsule body (2) and a lower capsule body (3), wherein the middle parts of the bottom surface of the upper capsule body (2) and the top surface of the lower capsule body (3) are bonded and interconnected by welding, so that the top surface of the upper capsule body (2) can swing freely and match and fit with the supporting object.

2. The airbag cushion according to claim 1, characterized in that: An upper air port (4) is provided in the middle of the bottom surface of the upper sac body (2), and a lower air port (5) is provided in the middle of the top surface of the lower sac body (3). The periphery of the upper air port (4) and the periphery of the lower air port (5) are vertically overlapped and welded together so that the upper air port (4) and the lower air port (5) are aligned and connected.

3. The airbag cushion according to claim 2, characterized in that: The welding area formed by overlapping the periphery of the upper air port (4) and the periphery of the lower air port (5) is annular, and the width of the welding area is A, A≥5mm; or, the ratio of the outer edge diameter of the welding area to the outer edge diameter of the unit capsule is B, B≤0.5; or, the outer edge portion of the bottom surface of the upper capsule body (2) and the outer edge portion of the bottom surface of the lower capsule body (3) form a matching annular limiting surface, and when the upper capsule body (2) is tilted to a preset angle, the limiting surface is used to abut and limit the excessive tilt of the axis of the upper capsule body (2) to prevent the axis of the upper capsule body (2) from tilting excessively.

4. An airbag cushion according to any one of claims 2-3, characterized in that: The upper capsule body (2) comprises an upper cover portion (6) and an upper cover sheet (7); an upper capsule cavity exposed downward is provided in the upper cover portion (6); and the upper cover sheet (7) covers the bottom surface of the upper cover portion (6) and blocks the upper capsule cavity.

5. The airbag cushion according to claim 4, characterized in that: The upper air port (4) is opened in the middle of the upper cover sheet (7); or, the periphery of the upper cover sheet (7) and the periphery of the bottom surface of the upper cover portion (6) are sealed by welding; or, the upper cover portion (6) is formed by integral injection molding.

6. An airbag cushion according to any one of claims 2-3, characterized in that: The airbag strip (1) comprises a lower bottom sheet (8) and a lower cover sheet (9) in the form of long strips, the peripheries of the lower bottom sheet (8) and the lower cover sheet (9) being overlapped and welded so that the lower airbag body (3) is interconnected to form a whole.

7. The airbag cushion according to claim 6, characterized in that: The lower bottom sheet (8) comprises unit bottom areas (10) arranged in a straight line and an air path bottom area (11) connected between adjacent unit bottom areas (10); the lower cover sheet (9) comprises unit cover areas (12) arranged in a straight line and an air path cover area (13) connected between adjacent unit cover areas (12); the corresponding unit bottom areas (10) and unit cover areas (12) are stacked and enclosed to form the lower capsule (3); the corresponding air path bottom areas (11) and air path cover areas (13) are stacked and enclosed to form an air path channel spanning between adjacent lower capsules (3).

8. The airbag cushion according to claim 7, characterized in that: The lower air port (5) is opened in the middle of the unit cover area (12); or, the periphery of the unit bottom area (10) and the unit cover area (12) are sealed by overlapping welding to form a lower capsule (3); or, the side edges of the air path bottom area (11) and the air path cover area (13) are sealed by welding to form the air path channel.

9. The airbag cushion according to claim 6, characterized in that: The front edge and the rear edge of the lower bottom sheet (8) are both provided with connecting edges, and adjacent airbag strips (1) are overlapped, welded and bonded via corresponding connecting edges (14).

10. A mattress using the airbag cushion according to any one of claims 1 to 9, comprising a cushion body, characterized in that: The cushion body comprises an airbag cushion (15) and a limiting block (16) for clamping and wrapping the airbag cushion (15).

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