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 prone to being excessively pressed and sunken due to excessive deflation. The device comprises unit bags which are arranged in a matrix shape, each unit bag comprises unit cavities which are vertically stacked and communicated with one another, vertical supporting walls are formed on the peripheral walls of the unit cavities, and connecting areas of the adjacent supporting walls are concaved inwards to form corner parts. The unit bags can be switched between an extension state in which the corner parts are opened and the adjacent supporting walls are vertically separated and a contraction state in which the corner parts are closed and the adjacent supporting walls are vertically overlapped. The supporting walls are arranged on the peripheral walls of the unit cavities, the supporting walls are kept vertical all the time and are not in linkage with inflation and deflation, the adjacent unit bags are vertically stacked and supported through the supporting walls during deflation, it is ensured that the unit bags are kept at the preset height all the time after deflation, it is ensured that the top face of the air bag cushion is kept flat, and it is also ensured that the unit bags can be rapidly inflated, stretched and reset; 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 a front-to-back direction. The airbag strips are provided with linearly arranged unit cells. Adjacent unit cells are connected by air passages, so that the air pressure of each unit cell on the airbag strip can be synchronously adjusted, thereby enabling synchronous air pressure adjustment of adjacent airbag strips when they are interconnected. The unit cells include a plurality of vertically stacked and interconnected unit cavities. The air pressure within each unit cavity can be synchronously adjusted, thereby adjusting the softness and hardness of the unit cells by raising and lowering the air pressure. The outer peripheral wall of the existing airbag includes two vertically symmetrically arranged inclined surfaces, which facilitate both stacking and contraction during deflation and vertical extension during inflation, allowing the height of the airbag to be adjusted by inflation and deflation. The airbag may over-contract due to excessive deflation, causing the top surface of the airbag cushion to sag downward, affecting the aesthetics. The excessive concavity and deformation of the airbag may also make it impossible to accurately inflate and reset, shortening the service life of the airbag and affecting the user experience. Utility Model Content

[0003] In order to address the deficiencies of the prior art, the utility model provides an airbag cushion and a mattress using the same. A support wall is provided on the outer peripheral wall of the unit cavity. Adjacent unit bags are vertically stacked and supported by the support wall when deflated, ensuring that the unit bags always maintain a preset height after deflation, thereby ensuring that the top surface of the airbag cushion remains flat and that the unit bags can be quickly inflated and stretched to their original position, thereby improving the user experience.

[0004] The present invention is achieved in the following manner: an airbag cushion comprises unit cells arranged in a matrix, the unit cells comprising vertically stacked and interconnected unit cavities, the outer peripheral walls of the unit cavities forming vertical support walls, the connecting areas of adjacent support walls being inwardly recessed to form corners, and the unit cells being switchable between an extended state in which the corners are open and the adjacent support walls are vertically separated, and a contracted state in which the corners are closed and the adjacent support walls are vertically stacked. Support walls are provided on the outer peripheral walls of the unit cavities, the support walls always remaining vertically positioned and independent of inflation and deflation. Adjacent unit cells are supported by the vertically stacked support walls during deflation, ensuring that the unit cells always maintain a preset height after deflation, thus ensuring that the top surface of the airbag cushion remains flat and that the unit cells can be quickly inflated and extended and reset, thereby improving the user experience.

[0005] Preferably, an annular connection area is provided between adjacent support walls. The connection area forms the corner part by radially inward depression, so that adjacent unit cavities are hermetically connected and can be lifted and lowered smoothly. The corner part is located in the connection area between adjacent support walls, and the angle of the corner part can change with the inflation and deflation operations, so that the unit bladder has a vertical deformation stroke, which is convenient for adjusting the softness and hardness of the unit bladder and providing a comfortable support experience for users.

[0006] Preferably, the height ratio of the unit bladder in the extended state and the contracted state is C, and 1.15 ≤ C ≤ 1.3, which not only ensures that the vertical expansion and contraction amplitude of the unit bladder meets the softness and hardness adjustment requirements, but also ensures its precise reciprocating expansion and contraction by restricting the vertical expansion and contraction amplitude of the unit bladder, preventing the situation of the unit bladder deviating in the expansion and contraction direction.

[0007] Preferably, the vertical cross-section of the corner part is an isosceles triangle, and the included angle of the corner part is A, which changes synchronously as the unit bladder switches between the extended state and the contracted state. The corresponding end edges of adjacent support walls are bent inward and connected to form the corner part. The bent areas of the support wall end edges are set to be of equal width and form two equal-length waist sides of the isosceles triangle, which not only ensures the smooth connection of the bent area, but also ensures that the support walls are vertically aligned when the unit bladder expands and contracts, and further ensures that the unit bladder can expand and contract in the vertical direction.

[0008] Preferably, when the unit bladder switches to the extended state, 15° ≤ A ≤ 20°. When the unit bladder is inflated, the angle of the corner part increases and the adjacent support walls are vertically separated, ensuring that the unit bladder expands vertically and increases in hardness.

[0009] Preferably, when the unit bladder switches to the contracted state, A = 0°. The unit bladder is exhausted and the angle of the corner part decreases. The adjacent support walls are vertically in contact and the height of the unit bladder remains constant, preventing the situation of excessive contraction due to excessive deflation.

[0010] Preferably, the ratio of the vertical projection width of the corner part to the diameter of the support wall is B, and 0.2 ≤ B ≤ 0.3, which not only ensures that the corner part has a vertical deformation stroke that meets the use requirements, thus meeting the softness and hardness adjustment needs, but also can use the annular corner part to limit its excessive radial expansion, and then play a role in guiding and restricting the relative movement between adjacent support walls.

[0011] Preferably, the wall thickness of the support wall is D, and D ≥ 1.5 mm. By increasing the wall thickness of the support wall, the structural strength is improved, and then the anti-deformation performance is improved, ensuring that the height of the unit bladder remains constant when the support walls are vertically stacked, and preventing the situation of the support wall being bent and collapsed due to excessive force.

[0012] Preferably, adjacent unit capsules are connected and fixed through an air passage. The air passage is connected between adjacent unit capsules, which not only ensures that the air pressures in adjacent unit capsules can be synchronously adjusted, but also ensures the relative positions between adjacent unit capsules are fixed, ensuring that the unit capsules in the airbag pad are arranged in a matrix.

[0013] Preferably, there are at least four of the unit cavities and they are stacked and connected. This can not only set annular corner parts between adjacent unit cavities so that the unit cavities can achieve vertical expansion and contraction in a horizontal posture, but also increase the number of corner parts by increasing the number of unit cavities. Then, by accumulating the vertical deformation strokes of the corner parts, it is ensured that the vertical expansion and contraction amplitude of the unit capsule meets the use requirements, and at the same time, the requirements for the vertical deformation strokes of each corner part can be effectively reduced to ensure that the corner parts can be accurately reset.

[0014] Preferably, the unit cavities have support walls with the same diameter, so that the vertical projections of the support walls coincide, ensuring that the support walls can be vertically stacked through the end edges after the unit capsule deflates, and further ensuring that the height of the unit capsule meets the preset requirements.

[0015] A mattress using the above airbag pad includes a pad body, and the pad body includes an airbag pad and a limiting block that clamps and wraps the airbag pad. The limiting block plays a role in clamping, positioning and protecting the airbag pad, ensuring that the airbag pad can be adjusted in hardness by inflating and deflating at a preset position, thereby improving the use comfort of the pad body.

[0016] The beneficial effects of the present utility model: Support walls are provided on the outer peripheral walls of the unit cavities. The postures of the support walls always remain vertical and are not linked with inflation and deflation. When adjacent unit capsules deflate, they are vertically stacked and supported by the support walls, ensuring that the unit capsules always maintain the preset height after deflation. This not only ensures that the top surface of the airbag pad remains flat, but also ensures that the unit capsules can be quickly inflated and stretched back to their original positions, improving the use experience. Description of the Drawings

[0017] Figure 1 It is a cross-sectional structural schematic diagram of the unit capsule in the extended state in Embodiment 1;

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the unit capsule in the contracted state in Embodiment 1;

[0019] Figure 3 It is a cross-sectional structural schematic diagram of the unit capsule in Embodiment 1;

[0020] Figure 4 It is a structural schematic diagram of the unit capsule assembled in a straight line in Embodiment 1;

[0021] Figure 5 It is a disassembled structural schematic diagram of the mattress in Embodiment 2;

[0022] In the figure: 1. unit bag, 2. unit cavity, 3. support wall, 4. corner part, 5. airbag cushion, 6. limit block. DETAILED DESCRIPTION

[0023] The essential features of the present invention will be further described below with reference to the accompanying drawings and specific implementation methods.

[0024] Example 1:

[0025] This embodiment provides an airbag cushion.

[0026] like Figure 1 and 2 The airbag cushion shown includes unit cells 1 arranged in a matrix. The unit cells 1 include vertically stacked and interconnected unit cavities 2. The outer peripheral walls of the unit cavities 2 form vertical support walls 3. The connecting areas of adjacent support walls 3 are inwardly recessed to form corner portions 4. The unit cells 1 can switch between an extended state in which the corner portions 4 are open and the adjacent support walls 3 are vertically separated, and a contracted state in which the corner portions 4 are closed and the adjacent support walls 3 are vertically stacked. Support walls 3 are provided on the outer peripheral walls of the unit cavities 2. The support walls 3 always remain upright and are not linked to inflation or deflation. When deflated, adjacent unit cells 1 are supported by the vertically stacked support walls 3, ensuring that the unit cells 1 always maintain a preset height after deflation. This ensures that the top surface of the airbag cushion 5 remains flat and that the unit cells 1 can be quickly inflated and expanded and reset, improving the user experience.

[0027] In this embodiment, the unit cavities 2 are stacked vertically and interconnected. An annular, vertical support wall 3 is formed in the middle of the peripheral walls of adjacent unit cavities 2. The end edges of the peripheral walls are bent inward and connected to the corresponding end edges of adjacent unit cavities 2 to form corner portions 4. The unit cavities 2 have support walls 3 of the same diameter so that the vertical projections of the support walls 3 overlap. The unit capsules 1 achieve expansion and contraction changes by inflation and deflation. Specifically:

[0028] When the cell capsule 1 is inflated, the cross-sectional profile of the support wall 3 remains unchanged, and the angle of the corner portion 4 increases due to the increase in air pressure in the cell capsule 1. The two ends of the corner portion 4 separate vertically and guide the cell capsule 1 to stretch vertically. The vertical distance between adjacent support walls 3 increases, thereby increasing the hardness of the cell capsule 1.

[0029] When the unit capsule 1 is deflated, the cross-sectional profile of the support wall 3 remains unchanged, and the angle of the corner portion 4 will decrease due to the decrease in air pressure in the unit capsule 1. The two ends of the corner portion 4 will vertically approach each other and guide the unit capsule 1 to shrink vertically. The vertical distance between adjacent support walls 3 will be reduced and they will overlap and limit each other, so that the height of the unit capsule 1 is maintained at a preset height, and excessive collapse will not occur due to excessive deflation in the unit capsule 1.

[0030] In this embodiment, the ratio of the height of the unit bladder 1 in the extended state to the height in the contracted state is C, where 1.15 ≤ C ≤ 1.3. In a preferred embodiment, C = 1.2. This not only meets the requirements for vertical telescopic deformation of the unit bladder 1, thereby enhancing the range of softness and hardness adjustment, but also ensures that the unit bladder 1 will not experience a situation where it cannot accurately reciprocate due to excessive telescopic deformation amplitude, nor will it cause excessive extrusion inside the mattress due to excessive telescopic deformation amplitude, thereby preventing irreversible deformation inside the mattress. Specifically, the telescopic deformation amplitude of the unit bladder 1 is associated with the opening and closing amplitude of the corner portion 4 and the height of the support wall 3. By setting a reasonable opening and closing amplitude of the corner portion 4 and the height of the support wall 3, the parameter C is ensured to fall within the preset range, thereby ensuring that the telescopic movement of the unit bladder 1 meets the usage requirements.

[0031] In this embodiment, there are at least four unit cavities 2. In a preferred embodiment, five unit cavities 2 are stacked and connected to form the unit bladder 1, such that the unit bladder 1 has four support walls 3 and three corner portions 4. By providing a relatively large number of support walls 3, the height of the unit bladder 1 after deflation is maintained to meet the usage requirements. By providing a relatively large number of corner portions 4, the requirements for the vertical deformation amplitude of the unit bladder 1 are shared, and by reducing the requirements for the vertical deformation stroke of each corner portion 4, it is convenient for the unit bladder 1 to accurately reciprocate.

[0032] In this embodiment, an annular connection area is provided between adjacent support walls 3. The connection area forms the corner portion 4 by radially inwardly recessing (as Figure 3 shown), so that adjacent unit cavities 2 are hermetically connected and can be lifted and lowered smoothly. The vertical cross-section of the corner portion 4 is an isosceles triangle, and the included angle of the corner portion 4 is A, which changes synchronously as the unit bladder 1 switches between the extended state and the contracted state. When the unit bladder 1 switches to the extended state, 15° ≤ A ≤ 20°, ensuring that the parameter C can meet the preset requirements; when the unit bladder 1 switches to the contracted state, A = 0°, ensuring that the corresponding end faces of adjacent support walls 3 can be vertically stacked, ensuring that the unit bladder 1 will not experience excessive collapse.

[0033] In this embodiment, the ratio of the vertical projection width of the corner portion 4 to the diameter of the support wall 3 is B, where 0.2 ≤ B ≤ 0.3. In a preferred embodiment, B = 0.25. By increasing the parameter B, the vertical projection width of the corner portion 4 is increased, thereby increasing the opening and closing amplitude of the corner portion 4. By restricting the parameter B, the diameter of the inner edge of the corner portion 4 is increased, effectively enhancing the radial anti-deformation performance of the unit bladder 1, preventing the situation where the top axis of the unit bladder 1 tilts, and ensuring that the unit bladder 1 can undergo vertical telescopic deformation.

[0034] In this embodiment, the wall thickness of the support wall 3 is D, where D ≥ 1.5 mm. This not only ensures that the support wall 3 has good structural strength to meet the requirements for vertical force transmission, but also effectively controls the raw material usage and reduces the production cost.

[0035] In this embodiment, the unit capsules 1 are arranged in a matrix and joined together to form the airbag pad 5 (as Figure 4 shown). The adjacent unit capsules 1 are connected and fixed through air channels, ensuring that the inner cavities of the adjacent unit capsules 1 are connected through the air channels, so that the air pressures in the adjacent unit capsules 1 can be synchronously adjusted to obtain the same softness and hardness.

[0036] Embodiment Two:

[0037] Compared with Embodiment One, this embodiment provides a mattress.

[0038] As Figure 5 shown, a mattress includes a mattress body, and the mattress body includes an airbag pad 5 and a limiting block 6 that clamps and wraps the airbag pad 5. The limiting block 6 plays a role in clamping, positioning, and protecting the airbag pad 5, ensuring that the airbag pad 5 is adjusted in softness and hardness by inflating and deflating at a preset position, thereby improving the use comfort of the mattress body.

[0039] In this embodiment, the limiting block 6 is provided with through holes, and the number and positions of the through holes are matched one by one with the unit capsules 1 on the airbag pad 5. During installation, the limiting block 6 wraps the airbag pad 5, and the through holes are sleeved on the corresponding unit capsules 1, so that each unit capsule 1 is limited by the inner wall of the through hole, ensuring that the unit capsule 1 realizes vertical expansion and contraction under the guidance of the through hole, and then adjusting the softness and hardness by adjusting the air pressure to provide comfortable support for the user.

[0040] Other structures and effects of the airbag pad in this embodiment are the same as those in Embodiment One, and will not be elaborated here.

Claims

1. An airbag cushion, comprising unit airbags (1) arranged in a matrix, characterized in that, The unit capsule (1) includes unit cavities (2) that are vertically stacked and communicate with each other. The outer peripheral wall of the unit cavity (2) forms a vertically arranged support wall (3). The connection area between adjacent support walls (3) forms a corner part (4) by inward depression. The unit capsule (1) can be switched between an extended state where the corner part (4) is opened and the adjacent support walls (3) are vertically separated, and a contracted state where the corner part (4) is closed and the adjacent support walls (3) are vertically stacked.

2. The airbag cushion according to claim 1, characterized in that, An annular connection area is provided between adjacent support walls (3). The connection area forms the corner part (4) by radially inward depression, so that adjacent unit cavities (2) are hermetically connected and can be lifted and lowered smoothly.

3. The airbag cushion according to claim 1, wherein, The height ratio of the unit capsule (1) in the extended state and the contracted state is C, and 1.15 ≤ C ≤ 1.

3.

4. The airbag cushion according to claim 3, characterized in that, The vertical cross-section of the corner part (4) is an isosceles triangle, and the included angle of the corner part (4) is A, and it changes synchronously as the unit capsule (1) is switched between the extended state and the contracted state.

5. The airbag cushion according to claim 4, characterized in that, When the unit capsule (1) is switched to the extended state, 15° ≤ A ≤ 20°; or when the unit capsule (1) is switched to the contracted state, A＝0°。 6. The airbag cushion according to claim 4, wherein, The ratio of the vertical projection width of the corner part (4) to the diameter of the support wall (3) is B, and 0.2 ≤ B ≤ 0.

3.

7. The airbag cushion according to claim 1, characterized in that, The wall thickness of the support wall (3) is D, and D ≥ 1.5 mm.

8. An airbag cushion according to any one of claims 1-7, characterized in that, Adjacent unit capsules (1) are connected and fixed through an air duct.

9. An airbag pad according to any one of claims 1-7, characterized in that, The unit cavity (2) is at least four; or the unit cavity (2) has support walls (3) with the same diameter, so that the vertical projections of the support walls (3) coincide.

10. A mattress using the airbag pad according to any one of claims 1-9, comprising a pad body, characterized in that, The cushion body includes an airbag cushion (5) and a limit block (6) that clamps and wraps the airbag cushion (5).

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