Supporting air bag and mattress

Abstract

The utility model relates to a supporting air bag and a mattress. The middle of an existing cubic supporting air bag is excessively deformed due to lack of a limiting structure. The bag comprises a bag body, the bag body is in a cube shape, a vertically-through through hole is formed in the middle of the bag body, the side wall of the through hole is bent repeatedly in the radial direction to form a corner part, and the corner part guides the side wall of the through hole to vertically stretch out and draw back in a reciprocating mode through opening and closing switching so that the top wall of the bag body can ascend and descend stably. The side wall of the through hole is arranged to be in the folded shape with the corner part, synchronous vertical telescopic deformation of the side wall of the through hole and the middle of the bag body is guided through opening and closing of the corner part, it is ensured that the middle of the bag body can be supported by the side wall of the through hole, the conditions of collapse and irreversible deformation are prevented, and the use experience is improved.

Description

Technical Field

[0001] The utility model relates to the field of bedding, in particular to a supporting air bag and a mattress. Background Art

[0002] Existing mattresses are equipped with cubical support airbags, which are laid out sequentially to form a flat support surface. A vertical through-hole is provided in the center of the support airbag, which not only provides a ventilation channel but also uses the sidewalls of the through-hole to limit excessive expansion of the middle of the top and bottom walls of the support airbag, ensuring that the support airbag effectively maintains its cubical profile. Existing through-hole sidewalls are cylindrical, with a straight vertical cross-sectional profile. When the support airbag is compressed, the through-hole sidewalls will undergo irreversible deformation due to the lack of a guiding structure, causing the center of the support airbag to collapse, failing to provide effective support to the user and affecting the user experience. Utility Model Content

[0003] In order to address the shortcomings of the existing technology, the utility model provides a supporting airbag and a mattress, in which the side walls of the through hole are set to be folded with corner portions, and the opening and closing of the corner portions are used to guide the synchronous vertical expansion and contraction deformation of the side walls of the through hole and the middle part of the bag body, which not only ensures that the middle part of the bag body can be supported by the side walls of the through hole, but also guides the vertical expansion and contraction of the middle part of the bag body through the side walls of the through hole, thereby preventing irreversible deformation and improving the user experience.

[0004] The present invention is achieved through the following method: a support airbag, comprising a bladder body, the bladder body being in a cubic shape, a vertically penetrating through-hole being provided in the middle of the bladder body, the sidewalls of the through-hole being repeatedly bent radially to form corner portions, and the corner portions being switched on and off to guide the vertical reciprocating expansion and contraction of the sidewalls of the through-hole, thereby allowing the top wall of the bladder body to rise and fall smoothly. The sidewalls of the through-hole are configured as a folded shape with corner portions, and the opening and closing of the corner portions are used to guide the vertical expansion and contraction of the sidewalls of the through-hole and the middle of the bladder body synchronously, while also ensuring that the middle of the bladder body is supported by the sidewalls of the through-hole, preventing collapse and irreversible deformation, thereby improving the user experience.

[0005] Preferably, the corner portions include outer corners and inner corners alternately arranged along the axis of the through-hole, the outer corners and the inner corners cooperating to open and close and guide the expansion and contraction of the through-hole sidewall. The through-hole sidewall forms a serrated structure by arranging the outer corners and the inner corners, which not only facilitates the expansion and contraction of the through-hole sidewall along the axis of the through-hole by opening and closing the corner portions, guiding the deformation of the through-hole sidewall, but also effectively maintains the profile of the through-hole sidewall, thereby improving the vertical support performance and preventing the middle of the support capsule from collapsing due to vertical force.

[0006] Preferably, the outer corner is annular and arranged around the side wall of the through hole. The annular area at the same height of the side wall of the through hole forms the outer corner by bulging outward, which not only ensures that the annular area has good sealing, but also ensures that the two sides of the annular area can be opened and closed with the annular outer corner as the center, thereby making the vertical distance between the top edge and the bottom edge of the annular area adjustable.

[0007] Preferably, there are at least three outer corners, and the diameter of the circle in which the outer corners are located is the same. By setting the same outer corner diameter, the expansion and contraction resistance of each section of the through hole is consistent, and the outer corners are ensured to open and close synchronously, thereby preventing differential expansion and contraction between the sections of the through hole and ensuring that the axis of the through hole always remains vertically straight, thereby effectively improving the supporting performance. By increasing the number of outer corners, the vertical expansion and contraction requirements of the annular area corresponding to each outer corner are reduced, preventing the annular area from irreversible deformation due to excessive expansion and contraction.

[0008] Preferably, the inner corner is annular and arranged around the side wall of the through hole. The annular area at the same height of the side wall of the through hole is recessed inward to form the inner corner, which not only ensures that the annular area has good sealing, but also ensures that the two sides of the annular area can be opened and closed with the annular inner corner as the center, thereby making the vertical distance between the top edge and the bottom edge of the annular area adjustable.

[0009] Preferably, there are at least three inner corners, and the diameter of the circle in which the inner corners are located is the same. By setting the same inner corner diameter, the expansion and contraction resistance of each section of the through hole is consistent, and the inner corners are ensured to open and close synchronously, thereby preventing differential expansion and contraction between the sections of the through hole and ensuring that the axis of the through hole always remains vertically straight, thereby effectively improving the supporting performance. By increasing the number of inner corners, the vertical expansion and contraction requirements of the annular area corresponding to each inner corner are reduced, preventing the annular area from irreversible deformation due to excessive expansion and contraction.

[0010] Preferably, the top and bottom edges of the through-hole sidewalls are both provided with inner corners, so that the top and bottom edges of the through-hole sidewalls are both flared. By providing the inner corners, the end edges of the corresponding annular regions are flared, which not only effectively receives and guides airflow through the through-hole, improving ventilation, but also increases the contact area with the user through the flared slope, thereby effectively dispersing the weight from the user and preventing deformation and blockage of the through-hole port due to concentrated force.

[0011] Preferably, the bladder is rectangular, with the through-holes spaced equidistantly along its length. The bladder has a regular contour, allowing for easy assembly to form a flat support surface. This conceals gaps between adjacent bladders, eliminating the sensation of a foreign body and improving sleeping comfort. The through-holes are arranged along the length of the bladder, ensuring that all areas of the bladder's top surface are effectively supported and preventing localized collapse.

[0012] Preferably, there are at least two through-holes, each located along the midline of the bladder. This increased number of through-holes ensures balanced support across the central region of the support airbag. The through-holes, arranged along the midline of the bladder, enhance support performance and guide vertical expansion and contraction deformation in regions on both sides of the midline.

[0013] Preferably, the bottom end edge of the sac is provided with an air vent connected to the outside world. The air vent is exposed at the bottom end edge of the sac, which not only regulates the air pressure inside the sac, but also will not be blocked by adjacent sacs, making it convenient to connect to the external trachea.

[0014] A mattress comprises a cushion body, wherein the cushion body comprises a supporting airbag and an outer cover wrapping the supporting airbag. The outer cover wraps the supporting airbag to position and protect the supporting airbag.

[0015] Preferably, the length of the support airbags corresponds to the width of the cushion body, so that the support airbags are arranged side by side along the length of the cushion body to form the cushion body's support surface. The length of the support airbags is equal to the width of the cushion body, so that the support airbags can be arranged in a front-to-back direction to form a flat support surface for the cushion body. This not only ensures a flat support surface and improves lying comfort, but also effectively reduces the number of support airbags, improves flatness by reducing splicing gaps, and facilitates assembly and use.

[0016] The beneficial effects of the present invention are as follows: the side walls of the through hole are set to be folded with corner parts, which not only utilize the opening and closing of the corner parts to guide the synchronous vertical expansion and contraction deformation of the side walls of the through hole and the middle part of the sac body, but also ensure that the middle part of the sac body can be supported by the side walls of the through hole, preventing collapse and irreversible deformation, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic cross-sectional view of the support airbag described in Example 1;

[0018] Figure 2 is a cross-sectional schematic diagram of the support airbag described in Example 1;

[0019] Figure 3 This is a schematic structural diagram of the support airbag described in Example 1;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the mattress described in Example 2;

[0021] In the figure: 1. Support airbag, 2. Through hole, 3. Outer corner, 4. Inner corner, 5. Air port, 6. Outer cover. DETAILED DESCRIPTION

[0022] The essential features of the present invention will be further described below with reference to the accompanying drawings and specific implementation methods.

[0023] Example 1:

[0024] This embodiment provides a support airbag.

[0025] like Figure 1 、 2 The support airbag shown in Figure 3 includes a bladder body, which is in the shape of a cube. A vertical through-hole 2 is provided in the middle of the bladder body. The sidewalls of the through-hole 2 are repeatedly bent radially to form corners. The corners are switched on and off to guide the vertical reciprocating expansion and contraction of the sidewalls of the through-hole 2, thereby smoothly raising and lowering the top wall of the bladder body. The sidewalls of the through-hole 2 are configured as a folded shape with corners. The opening and closing of the corners not only guides the vertical expansion and contraction of the sidewalls of the through-hole 2 and the middle of the bladder body in sync with each other, but also ensures that the middle of the bladder body is supported by the sidewalls of the through-hole 2, preventing collapse and irreversible deformation, thereby improving the user experience.

[0026] In this embodiment, the outer corner 3 is annular and arranged around the side wall of the through hole 2. An annular region at the same height of the side wall of the through hole 2 is formed by outward protrusion to form the outer corner 3. The inner corner 4 is annular and arranged around the side wall of the through hole 2. An annular region at the same height of the side wall of the through hole 2 is formed by inward depression to form the inner corner 4. The side wall of the through hole 2 is divided into multiple annular regions from top to bottom. The central portion of each annular region is formed by radially inward depression or radially outward protrusion to form the annular inner corner 4 and outer corner 3. The inner corner 4 and outer corner 3 are arranged alternately along the axis of the through hole 2, so that the vertical cross-sectional profile of the side wall of the through hole 2 is radially reciprocatingly bent in a W-shape. During use, the corners on the side walls of the sac can be opened and closed freely, so that the side walls of the sac can be vertically expanded and contracted, ensuring that the height of the side walls of the through hole 2 matches the thickness of the middle part of the sac, ensuring that the middle part of the sac can always obtain vertical support, and ensuring that the side walls of the through hole 2 will not undergo irreversible deformation due to excessive vertical deformation of the middle part of the sac, ensuring that the side walls of the through hole 2 can achieve vertical expansion and contraction in a preset manner.

[0027] In this embodiment, the corner portion includes outer corners 3 and inner corners 4 alternately arranged along the axis of the through hole 2. The outer corners 3 and the inner corners 4 cooperate to open and close and guide the side wall of the through hole 2 to expand and contract. Specifically:

[0028] When the sac is inflated, the distance between the top wall and the bottom wall of the sac increases, the angle of the corner on the side wall of the through hole 2 increases, the vertical distance between the top edge and the bottom edge of the corresponding annular area increases, and the vertical projections between the top edge and the bottom edge always remain coincident, thereby ensuring that the through hole 2 completes the extension operation while its axis remains vertically straight, which not only ensures that the middle part of the sac has good supporting performance, but also uses the side wall of the through hole 2 to pull and limit the top and bottom walls of the sac, ensuring that the sac remains in a cubic shape, and preventing the middle part of the top wall of the sac from bulging upward excessively due to over-inflation.

[0029] When the sac is deflated, the vertical distance between the top wall and the bottom wall of the sac is reduced, the angle of the corner on the side wall of the through hole 2 is reduced, the vertical distance between the top edge and the bottom edge of the corresponding annular area is increased, and the vertical projections between the top edge and the bottom edge always remain overlapping. The corner is used to guide the contraction action of the side wall of the through hole 2, ensuring that the side wall of the through hole 2 can be extended again in the preset direction after contraction, ensuring that the through hole 2 can achieve reciprocating expansion and contraction and provide support for the middle part of the sac.

[0030] In this embodiment, there are at least three outer corners 3 and at least three inner corners 4. By increasing the number of inner corners 4 and outer corners 3, the requirements for the opening and closing angles of each corner are reduced, thereby effectively preventing the occurrence of irreversible deformation and extending the service life of the support sac. In a preferred embodiment, the number of inner corners 4 is one more than the number of outer corners 3, so that the top and bottom edges of the side walls of the through hole 2 are both provided with inner corners 4. The inner corners 4 are inclined from the middle to the end to form a flared structure of the top and bottom edges of the side walls of the through hole 2, which effectively disperses the gravity from the user and effectively collects the airflow at the end of the through hole 2, facilitating airflow.

[0031] In this embodiment, the diameters of the circles where all outer corners 3 are located are the same, and the diameters of the circles where all inner corners 4 are located are the same, ensuring that each section of the side wall of the through hole 2 has balanced deformation resistance, thereby ensuring that each section of the side wall of the through hole 2 can synchronously perform telescopic deformation, preventing the side wall of the through hole 2 from undergoing irreversible deformation due to local excessive deformation, and effectively transmitting the gravity from the user.

[0032] In this embodiment, the capsule is in the shape of a rectangular parallelepiped, and the through holes 2 are equidistantly spaced along the length direction of the capsule, ensuring that each partition of the capsule divided along its length direction is provided with a through hole 2, which not only meets the ventilation requirements, but also effectively improves the hardness of each partition, and prevents the top wall of the capsule from excessively bulging.

[0033] In this embodiment, there are at least two through holes 2, which are located on the midline of the bladder. Preferably, there are three through holes 2, which are located along the midline of the bladder, ensuring that the through holes 2 are symmetrically arranged in the front-to-back and left-to-right directions on the top wall of the bladder, so as to ensure balanced support and air permeability in all areas of the top wall of the bladder.

[0034] In this embodiment, the bottom edge of the capsule is provided with an air port 5 that communicates with the outside world. This location allows for easy exposure and prevents obstruction by adjacent capsules arranged in a front-to-back relationship. The air ports 5 are all located at the same edge of the capsule, facilitating serial connection via an air pipe, allowing for synchronous regulation of the air pressure within the capsules and enhancing control convenience.

[0035] Example 2:

[0036] Compared with the first embodiment, this embodiment provides a mattress.

[0037] like Figure 4 The mattress shown includes the support air cells 1 and a cover 6 that encloses the support air cells 1. Multiple support air cells 1 are assembled front-to-back to form a support cushion. The cover 6 protects and positions the support air cells 1, ensuring that the relative positions of the support air cells 1 are fixed and that they form a flat support surface. It also prevents the support air cells 1 from being damaged by external sharp objects.

[0038] In this embodiment, the length of the support airbags 1 corresponds to the width of the mattress body, so that the support airbags 1 are arranged side by side along the length of the mattress body to form the support surface of the mattress body. The length of the support airbags 1 is the same as the width of the mattress body, so that the support airbags 1 can be assembled by simply laying them in the front-to-back direction to form the support airbag cushion, thereby meeting the requirements of mattress use, effectively simplifying the structure, and improving assembly efficiency.

[0039] The structure and effect of the support airbag described in this embodiment are consistent with those in the second embodiment and will not be described in detail.

Claims

1. A support airbag, comprising a bag body, characterized in that: The capsule is in a cubic shape, and a vertically penetrating through hole (2) is provided in the middle of the capsule. The side wall of the through hole (2) is repeatedly bent radially to form a corner portion. The corner portion guides the side wall of the through hole (2) to vertically reciprocate and expand and contract by switching between opening and closing, so that the top wall of the capsule can be raised and lowered smoothly.

2. A support airbag according to claim 1, characterized in that: The corner portion comprises an outer corner (3) and an inner corner (4) alternately arranged along the axial direction of the through hole (2); the outer corner (3) and the inner corner (4) cooperate to open and close and guide the side wall of the through hole (2) to expand and contract.

3. A support airbag according to claim 2, characterized in that: The outer corners (3) are annular and arranged around the side wall of the through hole (2), and the annular area at the same height of the side wall of the through hole (2) is formed by outward bulging to form the outer corners (3); or, there are at least three outer corners (3), and the diameters of the circles where the outer corners (3) are located are the same.

4. The support airbag according to claim 2, characterized in that: The inner corners (4) are annular and arranged around the side wall of the through hole (2), and the annular area at the same height of the side wall of the through hole (2) is recessed inward to form the inner corners (4); or, there are at least three inner corners (4), and the diameters of the circles where the inner corners (4) are located are the same.

5. The support airbag according to claim 2, characterized in that: The top edge and bottom edge of the side wall of the through hole (2) are both provided with inner corners (4), so that the top edge and bottom edge of the side wall of the through hole (2) are both in a flared shape.

6. A support airbag according to any one of claims 1 to 5, characterized in that: The capsule is in a rectangular parallelepiped shape, and the through holes (2) are equidistantly spaced along the length direction of the capsule.

7. A support airbag according to any one of claims 1 to 5, characterized in that: There are at least two through holes (2), which are respectively arranged on the midline of the capsule.

8. A support airbag according to any one of claims 1 to 5, characterized in that: The bottom end edge of the bag body is provided with an air port (5) communicating with the outside.

9. A mattress, comprising a mattress body, characterized in that: The cushion body comprises the support airbag (1) according to any one of claims 1 to 8 and an outer cover (6) wrapping the support airbag (1).

10. The mattress according to claim 9, characterized in that: The length of the support airbag (1) corresponds to the width of the cushion body, so that the support airbags (1) are arranged side by side along the length direction of the cushion body to form a supporting surface of the cushion body.

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