Air bag cushion and mattress using same

Abstract

The utility model relates to an air bag cushion and a mattress using the same. An existing unit bag is too small in stretching amplitude, and the hardness adjusting experience is affected. The air bag comprises air bag strips which are tightly arranged in the front-back direction, each air bag strip comprises a plurality of unit bags which are linearly arranged, each unit bag comprises unit cavities which are vertically stacked and communicated with one another, and the vertical section outline of the peripheral wall of each unit cavity is in an isosceles triangle shape with the middle protruding outwards. The included angle A between the end edge of the peripheral wall of each unit cavity and the horizontal plane is larger than or equal to 40 degrees and smaller than or equal to 50 degrees, so that the vertical stretching amplitude of the unit bags during inflation and deflation is increased. The vertical outline between the end edges of the peripheral walls of the adjacent unit cavities is set to be in the isosceles triangle shape, the parameter of the included angle between the end edges of the peripheral walls of the unit cavities and the horizontal plane is reduced, the vertical telescopic deformation amplitude of the unit bags is effectively increased, then the hardness adjusting amplitude is increased, it is ensured that the unit bags can accurately and vertically stretch and deform, and the use experience is improved.

Description

Technical Field

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

[0002] Existing mattresses include airbag cushions, which include airbag strips tightly arranged in the front-to-back direction. The airbag strips are provided with unit cells arranged in a straight line. Adjacent unit cells are connected by air passages so that the air pressure of each unit cell on the airbag strip can be adjusted synchronously, thereby enabling adjacent airbag strips to achieve synchronous air pressure adjustment when they are interconnected. The unit cells include a number of vertically stacked and interconnected unit cavities. The air pressure in each unit cavity can be adjusted synchronously, thereby adjusting the softness and hardness of the unit cells by raising and lowering the air pressure. Due to the small raising and lowering amplitude of the existing unit cells, the softness and hardness adjustment amplitude of the unit cells is small, which cannot meet the user's demand for mattress softness and hardness adjustment. Excessive expansion and contraction deformation will cause the unit cells to be unable to reciprocate along the preset path, resulting in interference between adjacent unit cells due to offset and tilt, affecting the user experience. Utility Model Content

[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 vertical profile between the end edges of the outer peripheral walls of adjacent unit cavities is set to an isosceles triangle shape, and the angle parameter between the end edges of the outer peripheral walls of the unit cavities and the horizontal plane is reduced, which effectively increases the vertical expansion and contraction deformation amplitude of the unit bladder, thereby increasing the softness and hardness adjustment amplitude, and also ensures that the unit bladder can accurately expand and contract vertically, thereby improving the user experience.

[0004] The present invention is realized in the following manner: an airbag cushion comprises airbag strips tightly arranged in a front-to-back direction, the airbag strips comprising a plurality of unit bladders arranged linearly, the unit bladders comprising vertically stacked and interconnected unit cavities, the vertical cross-sectional profile of the outer peripheral wall of the unit cavities being in the shape of an isosceles triangle with a central portion bulging outward, the angle between the end edge of the outer peripheral wall of the unit cavities and a horizontal plane being 40°≤A≤50°, so as to increase the vertical expansion and contraction amplitude of the unit bladders during inflation and deflation. The vertical profile between the end edges of the outer peripheral walls of adjacent unit cavities is set to an isosceles triangle shape, so that the outer peripheral walls of the unit bladders form inner and outer folding angles through convex and concave portions, effectively guiding the unit bladders to expand and contract in the vertical direction, reducing the angle parameter between the end edge of the outer peripheral wall of the unit cavities and the horizontal plane, effectively increasing the vertical expansion and contraction amplitude of the unit bladders, and thereby increasing the softness and hardness adjustment amplitude, thereby meeting the user's requirements for the airbag cushion and improving the user experience.

[0005] Preferably, the outer peripheral wall of the cell cavity is provided with an outwardly bulging outer corner in the middle portion, which guides the vertical expansion and contraction of the cell capsule by opening and closing. The outer peripheral wall of the cell cavity is formed by the bulge in the middle portion, and the outer peripheral wall of adjacent cell cavities is formed by an inward depression at the junction of the outer peripheral walls, and the vertical cross-sectional profile of the outer peripheral wall of the cell cavity is an isosceles triangle, so that the distance between adjacent outer and inner corners is the same. This not only guides the expansion and contraction of the cell capsule by utilizing the outer and inner corners, but also ensures that each circumferential section of the outer peripheral portion of the cell capsule has a balanced expansion and contraction resistance, thereby ensuring that the top surface of the cell capsule can be driven to rise and fall smoothly in a horizontal posture during inflation and deflation, ensuring that the cell capsule always maintains an axis vertical posture, and preventing adjacent cell capsules from interfering with each other.

[0006] Preferably, the ratio of the height of the unit bag when inflated to that when deflated is B, 1.2≤B≤1.3, which ensures that the unit bag has a large vertical expansion and contraction range to meet the user's requirements for the softness and hardness of the airbag cushion, and also prevents the top surface of the airbag cushion from being excessively concave after deflation by limiting the expansion and contraction range of the unit bag.

[0007] Preferably, A=45°, which ensures that the unit bladder has a larger expansion and contraction range, thereby making the airbag cushion have a larger hardness adjustment range to provide comfortable support for the user, and effectively limits the expansion and contraction range of the unit bladder, preventing the unit bladder from being unable to deform along the preset path due to excessive expansion and contraction range, and further preventing the unit bladder from tilting due to non-uniform local deformation and interfering with adjacent unit bladders.

[0008] Preferably, the unit capsule includes at least four vertically stacked unit cavities, each having the same contour. By providing multiple unit cavities, the unit capsule height meets preset requirements. This not only ensures that the vertical deformation amplitudes of the unit cavities can be superimposed, so that the vertical deformation amplitude of the unit capsule meets the usage requirements, but also reduces the vertical deformation amplitude requirements of each unit cavity, thereby effectively preventing the unit cavities from deforming horizontally.

[0009] Preferably, the middle portions of adjacent unit cells are connected by air passages, so that the air pressure in each unit cell on the air cell strip can be adjusted synchronously. The air passages are used to connect adjacent unit cells, so that the air pressure in adjacent unit cells can be adjusted synchronously, ensuring that the softness and hardness of the unit cells can be adjusted synchronously.

[0010] Preferably, the wall thickness of the unit bag is C, 0.8mm≤C≤1.2mm, which ensures that the unit bag has good anti-deformation performance and prevents the unit bag from excessively collapsing after deflation, ensures that the unit bag can reserve more air in the deflated state, effectively reducing the amount of air required for inflation, and reduces the amount of raw materials by limiting the thickness, thereby reducing the cost of raw materials. By improving the softness of the unit bag wall, it ensures that the circumferential areas of the outer wall of the unit bag can deform synchronously, thereby ensuring that the top surface of the unit bag can rise and fall smoothly in a horizontal posture.

[0011] Preferably, the horizontal cross-sectional profile of the cell cavity is circular, so that each circumferential segment of the cell cavity's outer wall has the same vertical cross-sectional profile. A circular cell cavity with a circular outer wall profile ensures that each segment of the cell cavity's outer wall has the same angle with the horizontal plane. This not only facilitates the synchronous change of parameter A during inflation and deflation of the cell bladder, but also ensures that the cell cavity can form vertical expansion and contraction deformation along its axis, ensuring that the top surface of the cell bladder can be raised in a horizontal position and stably support the user.

[0012] Preferably, the angle between the top edge of the outer peripheral wall of the unit cavity and the horizontal plane is A, or the angle between the bottom edge of the outer peripheral wall of the unit cavity and the horizontal plane is A. The angles between the top and bottom edges of the outer peripheral wall of the unit cavity and the horizontal plane are both A, and change synchronously with the inflation and deflation operations, ensuring that the top surface of the unit capsule rises and falls smoothly in a horizontal posture, and preventing adjacent unit capsules from interfering with each other due to tilting.

[0013] A mattress using the airbag cushion comprises a cushion body, the cushion body including the airbag cushion and a retaining block that clamps and encloses the airbag cushion. The retaining block holds, positions, and protects the airbag cushion, ensuring that the airbag cushion is adjusted in a preset position by inflation and deflation, thereby improving the comfort of the cushion body.

[0014] The beneficial effects of the present invention are as follows: the vertical profile between the end edges of the outer peripheral walls of adjacent unit cavities is set to an isosceles triangle shape, so that the outer peripheral walls of the unit capsule form inner and outer corners through convex and concave shapes, effectively guiding the unit capsule to expand and contract in the vertical direction, reducing the angle parameter between the end edge of the outer peripheral wall of the unit cavity and the horizontal plane, effectively increasing the vertical expansion and contraction deformation amplitude of the unit capsule, and thereby increasing the softness and hardness adjustment amplitude, meeting the user's requirements for the airbag cushion and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of a partial cross-sectional structure of the airbag strip according to Example 1;

[0016] Figure 2 This is a schematic structural diagram of the airbag strip according to Example 1;

[0017] Figure 3 This is a schematic diagram of the disassembled structure of the mattress described in Example 2;

[0018] In the figure: 1. airbag strip, 2. unit bag, 3. unit cavity, 4. outer corner, 5. airbag cushion, 6. limit block. DETAILED DESCRIPTION

[0019] The essential features of the present invention will be further described below with reference to the accompanying drawings and specific implementation methods.

[0020] Example 1:

[0021] This embodiment provides an airbag cushion.

[0022] like Figure 1 and 2 An airbag cushion is shown, comprising an airbag strip 1 tightly arranged in a front-to-back direction. The airbag strip 1 comprises a plurality of linearly arranged unit cells 2. The unit cells 2 comprise vertically stacked and interconnected unit cavities 3. The vertical cross-sectional profile of the outer peripheral wall of the unit cavity 3 is an isosceles triangle with a centrally bulging outward. The angle A between the end edges of the outer peripheral wall of the unit cavity 3 and the horizontal plane is 40°≤A≤50°, thereby increasing the vertical expansion and contraction amplitude of the unit cells 2 during inflation and deflation. The vertical profile between the outer peripheral wall edges of adjacent unit cavities 3 is set to an isosceles triangle, so that the outer peripheral walls of the unit cells 2 form inner and outer corners 4 through the concave and convex portions, effectively guiding the unit cells 2 to expand and contract in the vertical direction. The angle parameter between the outer peripheral wall edges of the unit cavities 3 and the horizontal plane is reduced, effectively increasing the vertical expansion and contraction amplitude of the unit cells 2, thereby increasing the softness and hardness adjustment range, meeting the user's requirements for the airbag cushion 5 and improving the user experience.

[0023] In this embodiment, A = 45°. This ensures a large vertical deformation range for the unit cavity 3, meeting the user's requirements for the softness and hardness of the airbag cushion 5 and improving user comfort by increasing the support adjustment range. It also limits the vertical deformation range of the unit cavity 3 to prevent localized horizontal deformation. This ensures that the unit bladder 2 can vertically expand and contract along its axis, preventing interference between adjacent unit bladders 2 due to tilt, and ensuring that the top surface of the unit bladder 2 remains horizontal and rises smoothly. Parameter A can also be 40°, 43°, 47°, 50°, and so on. As long as the requirement of 40° ≤ A ≤ 50° is met, it should be considered a specific implementation of this embodiment.

[0024] In this embodiment, the vertical cross-sectional profile of the outer peripheral wall of the unit cavity 3 is an isosceles triangle with a central bulge. The upper and lower portions of the outer peripheral portion of the unit cavity 3 have the same width and form two waists of the triangular profile. The central portion of the outer peripheral wall of the unit cavity 3 bulges outward to form an outer corner 4 located at the top of the isosceles triangle. The corresponding end edges of the outer peripheral walls of adjacent unit cavities 3 are connected to form an inwardly concave inner corner. The provision of waists of the same width ensures that the inner and outer corners 4 can open and close synchronously.

[0025] In this embodiment, the angle between the top edge of the outer peripheral wall of the unit cavity 3 and the horizontal plane is A, and the angle between the bottom edge of the outer peripheral wall of the unit cavity 3 and the horizontal plane is A, and the two are combined to form the inner fold angle. The outer fold angle 4 and the inner fold angle are vertically alternately arranged so that the contours of the vertical radial surfaces of the unit cavity 3 are the same, thereby guiding the unit capsule 2 to expand and contract along a preset path. Specifically, each circumferential section of the outer peripheral wall of the unit capsule 2 has the same vertical deformation resistance. When the unit capsule 2 changes due to the internal air pressure, the unit capsule 2 can use the outer fold angle 4 and the inner fold angle as the force points to achieve opening and closing changes and guide the vertical deformation of the unit capsule 2, ensuring that the top surface of the unit capsule 2 rises and falls smoothly in a horizontal posture.

[0026] In this embodiment, the ratio of the height of the unit bag 2 when inflated to that when deflated is B, 1.2≤B≤1.3, which not only ensures that the unit bag 2 has a large vertical expansion and contraction range to meet the user's requirements for the softness and hardness of the airbag cushion 5, but also prevents the top surface of the airbag cushion 5 from being excessively concave after deflation by limiting the expansion and contraction range of the unit bag 2.

[0027] In this embodiment, the horizontal cross-sectional profile of the unit cavity 3 is circular, so that each circumferential section of the outer wall of the unit cavity 3 has the same vertical cross-sectional profile. The radial cross-sectional profiles of the unit cavities 3 are all the same. During the inflation and deflation operations, the circumferential regions of the unit cavity 3 can be raised and lowered synchronously, ensuring that the unit capsule 2 can be raised and lowered vertically and the top surface can be kept in a horizontal position. The inner fold angle is arranged in a ring. When the unit capsule 2 is inflated and extended, the vertical cross-sectional angle and horizontal cross-sectional diameter of the inner fold angle will increase. The inner fold angle uses its own structural strength to limit the horizontal expansion deformation, thereby limiting the increase in the angle value of the inner fold angle, and accumulating the contraction preload for the unit capsule 2 to retract and reset, ensuring that the unit capsule 2 can reciprocate and stretch along the preset path.

[0028] In this embodiment, the unit bladder 2 comprises at least four vertically stacked unit cavities 3, each having the same contour. The vertical stacking of the unit cavities 3 allows the vertical deformation amplitudes of each unit cavity 3 to be superimposed, ensuring that the expansion and contraction amplitude of the unit bladder 2 meets the required operating conditions. Preferably, the unit bladder 2 comprises eight vertically stacked unit cavities 3, with the midsections of adjacent unit bladders 2 fixedly connected to each other, ensuring that adjacent unit bladders 2 can be connected to form the airbag strip 1.

[0029] In this embodiment, adjacent cells 2 are connected by air passages in the middle, allowing for simultaneous adjustment of the air pressure within each cell 2 of the airbag strip 1. Cells 2 at the ends of the airbag strip 1 extend outward to form air ports that communicate with an external air source, allowing for simultaneous adjustment of the air pressure within each cell 2 of the airbag strip 1.

[0030] In this embodiment, the wall thickness of the cell bladder 2 is C, 0.8mm≤C≤1.2mm, and preferably, C=1mm. This ensures that the cell bladder 2 has good deformation resistance, preventing excessive collapse after deflation. It also ensures that the cell bladder 2 retains a large amount of air in the deflated state, effectively reducing the amount of air required for inflation. By limiting the thickness, it also reduces raw material usage, thereby lowering raw material costs. By increasing the flexibility of the cell bladder 2 wall, it ensures that all circumferential regions of the outer wall of the cell bladder 2 can deform synchronously, thereby ensuring that the top surface of the cell bladder 2 can be raised and lowered smoothly in a horizontal position. Alternatively, parameter C can be 0.8mm, 0.9mm, 1.1mm, 1.2mm, etc. As long as the requirement of 0.8mm≤C≤1.2mm is met, it should be considered a specific embodiment of this embodiment.

[0031] In this embodiment, the leading and trailing edges of adjacent airbag strips 1 are both provided with connecting edges. The adjacent airbag strips 1 are arranged side by side and are overlapped and welded via the connecting edges, so that the airbag strips 1 are assembled to form an airbag cushion 5 .

[0032] Example 2:

[0033] Compared with the first embodiment, this embodiment provides a mattress.

[0034] like Figure 3 As shown, the mattress includes a cushion body, which includes an airbag cushion 5 and a stopper 6 that clamps and wraps the airbag cushion 5. The stopper 6 holds, positions, and protects the airbag cushion 5, ensuring that the airbag cushion 5 is adjusted in a preset position by inflation and deflation, thereby improving the comfort of the cushion body.

[0035] In this embodiment, the limit block 6 is provided with perforations, and the number and position of the perforations are matched one by one with the unit capsules 2 on the airbag cushion 5. During installation, the limit block 6 wraps the airbag cushion 5, and the perforations are placed on the corresponding unit capsules 2, so that each unit capsule 2 is limited by the inner wall of the perforation, ensuring that the unit capsule 2 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.

[0036] 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 (5), comprising airbag strips (1) arranged closely in a front-to-back direction, wherein the airbag strips (1) comprise a plurality of unit bags (2) arranged in a linear manner, characterized in that: The unit capsule (2) comprises unit cavities (3) stacked vertically and interconnected with each other. The vertical cross-sectional profile of the outer peripheral wall of the unit cavity (3) is in the shape of an isosceles triangle with a central portion bulging outwards. The angle between the end edge of the outer peripheral wall of the unit cavity (3) and the horizontal plane is A, 40°≤A≤50°, so as to increase the vertical expansion and contraction amplitude of the unit capsule (2) when inflating and deflation.

2. An airbag cushion (5) according to claim 1, characterized in that: An outer folding angle (4) formed by outward bulging is provided in the middle of the outer peripheral wall of the unit cavity (3), and the outer folding angle (4) guides the unit capsule (2) to vertically expand and contract through opening and closing changes.

3. An airbag cushion (5) according to claim 2, characterized in that: The ratio of the height of the unit bag (2) when inflated to when deflated is B, and 1.2≤B≤1.

3.

4. The airbag cushion (5) according to claim 1, characterized in that: A＝45°。 5. The airbag cushion (5) according to claim 2, characterized in that: The unit capsule (2) comprises at least four vertically stacked unit cavities (3), and the unit cavities (3) have the same contour.

6. The airbag cushion (5) according to claim 2, characterized in that: The middle parts of adjacent unit bags (2) are connected through air passages, so that the air pressure in each unit bag (2) on the air bag strip (1) can be adjusted synchronously.

7. The airbag cushion (5) according to claim 2, characterized in that: The wall thickness of the unit capsule (2) is C, 0.8mm≤C≤1.2mm.

8. An airbag cushion (5) according to any one of claims 1 to 7, characterized in that: The horizontal cross-sectional profile of the unit cavity (3) is circular, so that each circumferential section of the outer peripheral wall of the unit cavity (3) has the same vertical cross-sectional profile.

9. The airbag cushion (5) according to claim 8, characterized in that: The angle between the top edge of the outer peripheral wall of the unit cavity (3) and the horizontal plane is A; or, the angle between the bottom edge of the outer peripheral wall of the unit cavity (3) and the horizontal plane is A.

10. A mattress using the airbag cushion (5) according to any one of claims 1 to 9, comprising a cushion body, characterized in that: The cushion body comprises an airbag cushion (5) and a limiting block (6) for clamping and wrapping the airbag cushion (5).

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