Air bag cushion and mattress using same

Abstract

The utility model relates to an air bag cushion and a mattress using the same. The sealing performance between a three-way pipe fitting and an air port of an existing air bag cushion is poor. The air bag comprises air bag strips which are tightly arranged in the front-back direction, an air channel is formed in each air bag strip, a connecting table is arranged at the end of each air channel, a flat top plate is arranged at the top of each connecting table, an air opening which is open upwards is formed in the middle of each top plate, and a three-way pipe fitting is arranged on each air opening. The three-way pipe fitting comprises a lower pipe opening with a patch, and the patch is tightly attached to the top plate so that the air opening can be connected with the lower pipe opening in an aligned mode and communicated with the outside through the three-way pipe fitting. The connecting table is arranged at the end of the air channel, the top plate with the air port is arranged on the connecting table, the top plate is provided with the flat face for the patch to be flatly attached, it is ensured that the patch and the top plate are fixed through welding after being tightly attached, it is ensured that the lower pipe port and the air port are communicated in a sealed mode, air leakage is prevented, 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 are equipped with airbag cushions with adjustable air pressure. The airbag cushions include airbag strips that are tightly arranged in the front-to-back direction. The airbag strips are assembled to form airbag cushions of any size, which are convenient for filling in mattresses. The airbag strips are all provided with three-way pipe fittings, which not only ensure that adjacent airbag strips can be connected through the three-way pipe fittings, so that the air pressure in multiple airbag strips remains balanced, but also ensure that the airbag strips can be connected to an external controller and adjust the air pressure, thereby achieving the purpose of soft and hard adjustment. The three-way pipe fitting is arranged vertically, and the lower pipe opening of the three-way pipe fitting is tightly fitted with the peripheral area of ​​the air port through bonding. Since the peripheral area of ​​the air port is non-planar, the patch cannot be tightly fitted with the peripheral area of ​​the air port, and welding gaps are easily generated due to local detachment, which in turn makes it impossible for the air port and the lower pipe opening to be sealed and connected, resulting in a shortened service life of the airbag cushion 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 connecting platform is provided at the end of the air passage, and a top plate with an air port is provided on the connecting platform. The top plate is provided for the patch to fit flatly, ensuring that the air port is sealed and connected with the lower tube port, thereby improving the user experience.

[0004] The present invention is realized in the following manner: an airbag cushion, comprising airbag strips tightly arranged in the front-to-back direction, an air passage being provided on the airbag strips, a connecting platform being provided at the end of the air passage, a flat top plate being provided on the top of the connecting platform, an air port being provided in the middle of the top plate and exposed upward, a three-way pipe fitting being provided on the air port, the three-way pipe fitting comprising a lower pipe port with a patch, the patch being tightly fitted to the top plate so that the air port is aligned and connected with the lower pipe port and communicates with the outside world through the three-way pipe fitting. A connecting platform is provided at the end of the air passage, a top plate with an air port being provided on the connecting platform, the top plate having a flat surface for the patch to be smoothly fitted, ensuring that the patch and the top plate are tightly fitted and then fixed by welding, ensuring that the lower pipe port and the air port are sealed and connected, preventing air leakage, and improving the user experience.

[0005] Preferably, the connecting platform is formed by expanding the end of the air passage, and the peripheral area of ​​the air port forms the top plate. The patch and the top plate are matched and bonded together and sealed by circumferential welding. The connecting platform and the air passage are an integrated structure, ensuring a sealed connection between the two to prevent air leakage.

[0006] Preferably, the vertical projection of the patch falls completely into the top plate, ensuring that the patch can be completely attached to the top plate, which not only facilitates the welding operation but also improves the sealing reliability by increasing the area of ​​the welding region.

[0007] Preferably, a radial cutout is provided around the gas port, the cutout opening and increasing the gas port area to allow the patch to pass through the gas port and be bonded to the bottom surface of the top plate. The cutout facilitates the patch to pass through the gas port, ensuring that the patch can be bonded and welded to the bottom surface of the top plate.

[0008] Preferably, the incision is in the shape of a straight line and is symmetrically arranged with the axis of the air port as the center. The incision is in the shape of a straight line and passes through the center of the air port, which not only ensures that the deformation amplitude of both sides of the air port is balanced, thereby facilitating the patch arranged around the lower pipe port to pass through the air port, but also facilitates the closing and resetting of the incision and facilitates the welding and sealing of the patch.

[0009] Preferably, the top plate is rectangular, the cutout is arranged along the length of the top plate, the vertical projection of the cutout completely falls within the patch, and the horizontal distance between any section of the cutout and the edge of the patch is no less than 5mm. The cutout is arranged along the length of the top plate, ensuring that the distance between any section of the cutout and the edge of the patch is no less than 5mm. This not only improves sealing reliability by increasing the width of the welded area, but also provides a continuous welded area around the cutout and the air port to ensure sealing reliability.

[0010] Preferably, the three-way pipe fitting is T-shaped, comprising two upper pipe openings disposed in a front-to-rear manner, with the corresponding upper pipe openings of adjacent three-way pipe fittings being axially aligned and sealed by a sleeve. The ends of the sleeves are tightly fitted over the upper pipe openings and welded to a seal, which not only facilitates processing but also ensures that the corresponding upper pipe openings are sealed and connected by the sleeves. Furthermore, the axes of the sleeves and upper pipe openings coincide with each other and are arranged in a straight line, effectively reducing wind resistance and ensuring smooth airflow.

[0011] Preferably, the airbag strip comprises an elongated air platform and unit cells arranged linearly along the length of the air platform. The air channel is provided on the air platform and communicates with each unit cell along the platform. The air platform serves to securely connect the unit cells, ensuring their relative positions are fixed. It also lays the air channel and connects the unit cells in series, ensuring constant and synchronous air pressure within each cell. Furthermore, the leading and trailing edges of the air platform allow for stacking and welding adjacent airbag strips.

[0012] Preferably, the gas platform comprises an upper plate and a lower plate, which are vertically stacked and partially welded together to form the gas channel and connection platform. The upper and lower plates are independently machined, stacked, and bonded together to form the gas platform with the gas channel. This not only facilitates installation of the tee fitting before machining the gas platform, but also facilitates stacked assembly, improving assembly efficiency.

[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: a connecting platform is provided at the end of the air passage, and a top plate with an air port is provided on the connecting platform. The top plate has a flat surface for the patch to fit flatly, ensuring that the patch and the top plate fit tightly together and are fixed by welding, ensuring that the lower pipe port and the air port are sealed and connected, preventing air leakage, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the disassembled structure of the airbag strip described in Example 1;

[0016] Figure 2 Schematic diagram of a partial cross-sectional structure of the airbag strip according to Example 1;

[0017] Figure 3 This is a schematic cross-sectional view of the assembly structure of the connecting platform described in Example 1;

[0018] Figure 4 Schematic diagram of the partial structure of the airbag cushion described in Example 1;

[0019] Figure 5 This is a structural diagram of the three-way pipe fitting according to Example 1;

[0020] Figure 6 This is a schematic diagram of the disassembled structure of the mattress described in Example 2;

[0021] In the figure: 1. airbag strip, 2. air channel, 3. connecting platform, 4. top plate, 5. air port, 6. three-way pipe fitting, 7. patch, 8. lower pipe port, 9. air channel platform, 10. incision, 11. upper pipe port, 12. sleeve, 13. unit bag, 14. airbag cushion, 15. limit block. 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 an airbag cushion.

[0025] like Figure 1 and 2An airbag cushion is shown, comprising airbag strips 1 arranged closely in the front-to-back direction, an air passage 2 being provided on the airbag strips 1, a connecting platform 3 being provided at the end of the air passage 2, a flat top plate 4 being provided on the top of the connecting platform 3, an upwardly exposed air port 5 being provided in the middle of the top plate 4, a three-way pipe fitting 6 being provided on the air port 5, the three-way pipe fitting 6 comprising a lower pipe opening 8 with a patch 7, the patch 7 being tightly fitted to the top plate 4 so that the air port 5 is aligned and connected with the lower pipe opening 8 and communicates with the outside world through the three-way pipe fitting 6. A connecting platform 3 is provided at the end of the air passage 2, a top plate 4 with an air port 5 being provided on the connecting platform 3, the top plate 4 having a flat surface for the patch 7 to fit smoothly, ensuring that the patch 7 and the top plate 4 are tightly fitted and then fixed by welding, ensuring that the lower pipe opening 8 and the air port 5 are sealed and connected, preventing air leakage and improving the user experience.

[0026] In this embodiment, the connecting platform 3 is formed by expanding the end of the gas passage 2, the peripheral area of ​​the gas port 5 forms the top plate 4, and the patch 7 is matched with the top plate 4 and is sealed and adhered by circumferential welding. Specifically, the gas path platform 9 includes an upper plate and a lower plate, which are vertically stacked and partially welded to form the gas passage 2 and the connecting platform 3. The gas port 5 is provided on the upper plate, and the upper plate is located in the peripheral area of ​​the gas port 5 to form the top plate 4 with a flat surface. The upper plate and the lower plate are stacked, welded and enclosed to form the gas passage 2 with the connecting platform 3.

[0027] In this embodiment, the lower pipe port 8 is formed by extending outward to form a patch 7 (such as Figure 5 As shown in the figure, the patch 7 is welded and bonded to the periphery of the air port 5 so that the lower pipe opening 8 is aligned and connected to the air port 5. The patch 7 and the lower pipe opening 8 are integrally formed, and the periphery of the lower pipe opening 8 is radially extended outward to form the patch 7, ensuring a sealed connection between the patch 7 and the periphery of the lower pipe opening 8. A radial cutout 10 is provided on the periphery of the air port 5 to ensure that the area of ​​the air port 5 is increased when the cutout 10 is opened by force, ensuring that the patch 7 can smoothly pass through the air port 5 and fit and fix with the bottom surface of the top plate 4, and also ensuring that the cutout 10 can be closed and reset and achieve a seal when blocked by the patch 7.

[0028] During assembly, first, the lower pipe opening 8 of the three-way pipe fitting 6 passes through the air port 5 from top to bottom, and the patch 7 is deformed by pressure and shrinks toward the axis of the air port 5. The incision 10 is pushed open by the patch 7 and the air port 5 is enlarged, so that the shrinking patch 7 can pass through the air port 5 through the opened incision 10 under the drive of the lower pipe opening 8 and be exposed under the top plate 4; then, the patch 7 stretches and resets and fits the bottom surface of the top plate 4 (as shown in FIG. Figure 3As shown), the patch 7 and the bottom surface of the top plate 4 are overlapped with each other and welded and fixed, and the patch 7 completely covers the incision 10, so that the lower pipe opening 8 is sealed and connected with the air port 5; finally, the upper and lower pieces are vertically overlapped and enclosed by local welding to form the air path 2, the upper and lower pieces are overlapped, and a welding area is set along the periphery of the air path 2, so that the upper and lower pieces are welded and fixed and enclosed to form an air path 2 that meets the airflow conveying requirements and a connecting platform 3 that is sealed and connected with the lower pipe opening 8.

[0029] In this embodiment, the vertical projection of the patch 7 falls completely into the top plate 4, ensuring that the patch 7 can fit completely with the top plate 4, effectively increasing the contact area between the patch 7 and the top plate 4, and thereby obtaining a welding area continuously arranged around the air vent 5 and the periphery of the incision 10.

[0030] In this embodiment, the cutout 10 is in the shape of a straight line. The cutout 10 is symmetrically arranged with the axis of the air port 5 as the center. The top plate 4 is rectangular. The cutout 10 is arranged along the length of the top plate 4. The vertical projection of the cutout 10 falls completely into the patch 7, and the horizontal distance between any section of the cutout 10 and the edge of the patch is not less than 5mm. The cutout 10 is arranged along the length of the top plate 4, using the length of the top plate 4 to accommodate the cutout 10, and using the width of the top plate 4 to ensure that the minimum distance between each section of the cutout 10 and the periphery of the patch 7 is not less than 5mm. By increasing the width of the welding area, the sealing reliability is improved and the occurrence of air leakage is prevented.

[0031] In this embodiment, the three-way pipe fitting 6 is T-shaped and includes two upper pipe openings 11 disposed back to back. The corresponding upper pipe openings 11 of adjacent three-way pipe fittings 6 are axially aligned and sealed by sleeves 12 (such as Figure 4 As shown). The three-way pipe fitting 6 is arranged vertically so that the projection of the three-way pipe fitting 6 completely falls into the airbag strip 1 and is arranged close to the unit capsule 13. When the user sits on the edge of the airbag cushion 14, he will be supported by the unit capsule 13, which effectively prevents the main channel from being compressed and deformed due to the pressure of the user sitting, thereby ensuring that the air path is unobstructed. In addition, the axes of the upper pipe opening 11 and the sleeve 12 are located on the same straight line, ensuring that the main channel formed by the connection of the upper pipe opening 11 and the sleeve 12 is straight, effectively reducing wind resistance and facilitating assembly. The inner edge diameter of the sleeve 12 is the same as the outer edge diameter of the upper pipe opening 11, and the end of the sleeve 12 is sleeved on the upper pipe opening 11 and sealed and connected by circumferential welding. The two ends of the sleeve 12 are sleeved on the corresponding upper pipe openings 11, so that the corresponding upper pipe openings 11 of the adjacent three-way pipe fittings 6 are sealed and connected, thereby ensuring that the adjacent three-way pipe fittings 6 are connected to each other.

[0032] In this embodiment, the airbag strip 1 includes a plurality of linearly arranged unit cells 13, each connected by an air passage 2 running along the length of the airbag strip 1. The ends of the air passage 2 extend outward to form the three-way pipe fitting 6. The unit cells 13 are arranged equidistantly in a straight line, ensuring that the distances between the unit cells 13 are the same. This facilitates the assembly of the airbag strip 1 to form an airbag cushion 14 having a matrix of unit cells 13, improving user comfort and facilitating assembly. Adjacent unit cells 13 are connected by the air passage 2, allowing the air pressure within each unit cell 13 on the same airbag strip 1 to be adjusted synchronously. Adjacent airbag strips 1 are connected by adjacent three-way pipe fittings 6, allowing the air pressure within adjacent airbag strips 1 to be adjusted synchronously. By connecting the airbag strips 1 of each partition of the airbag cushion 14 in series, the air pressure within each partition can be adjusted synchronously, simplifying the air path structure and facilitating precise control and use.

[0033] Example 2:

[0034] Compared with the first embodiment, this embodiment provides a mattress.

[0035] like Figure 6 As shown, the mattress includes a cushion body, which includes an airbag cushion 14 and a stopper 15 that clamps and wraps the airbag cushion 14. The stopper 15 clamps, positions, and protects the airbag cushion 14, ensuring that the airbag cushion 14 is adjusted in a preset position by inflation and deflation, thereby improving the comfort of the cushion body.

[0036] In this embodiment, the limit block 15 is provided with perforations, and the number and position of the perforations are matched one by one with the unit capsules 13 on the airbag cushion 14. During installation, the limit block 15 wraps the airbag cushion 14, and the perforations are placed on the corresponding unit capsules 13, so that each unit capsule 13 is limited by the inner wall of the perforation, ensuring that the unit capsule 13 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.

[0037] 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 a front-to-back direction, wherein an air passage (2) is provided on the airbag strips (1), characterized in that: A connecting platform (3) is provided at the end of the air passage (2), a flat top plate (4) is provided on the top of the connecting platform (3), an upwardly exposed air port (5) is provided in the middle of the top plate (4), a three-way pipe fitting (6) is provided on the air port (5), the three-way pipe fitting (6) includes a lower pipe opening (8) with a patch (7), and the patch (7) is tightly fitted with the top plate (4) so ​​that the air port (5) is aligned and connected with the lower pipe opening (8) and communicates with the outside through the three-way pipe fitting (6).

2. The airbag cushion according to claim 1, characterized in that: The connecting platform (3) is formed by expanding the end of the air passage (2), the peripheral area of ​​the air port (5) forms the top plate (4), and the patch (7) is matched with the top plate (4) and adhered to the top plate (4) to achieve sealing adhesion through circumferential welding.

3. The airbag cushion according to claim 2, characterized in that: The vertical projection of the patch (7) completely falls into the top plate (4).

4. The airbag cushion according to claim 2, characterized in that: A radially opened cutout (10) is provided on the periphery of the air port (5), and the cutout (10) opens and increases the area of ​​the air port (5) so as to allow the patch (7) to pass through the air port (5) and to be fixedly connected to the bottom surface of the top plate (4).

5. The airbag cushion according to claim 4, characterized in that: The incision (10) is in a straight line shape and is symmetrically arranged with the axis of the air port (5) as the center.

6. The airbag cushion according to claim 5, characterized in that: The top plate (4) is rectangular, the cutout (10) is arranged along the length direction of the top plate (4), the vertical projection of the cutout (10) completely falls into the patch (7), and the horizontal distance between any section of the cutout (10) and the edge of the patch (7) is not less than 5 mm.

7. The airbag cushion according to any one of claims 1 to 6, characterized in that: The three-way pipe fitting (6) is T-shaped and comprises two upper pipe openings (11) disposed in a front-to-back manner. The corresponding upper pipe openings (11) of adjacent three-way pipe fittings (6) are axially aligned and sealedly connected via a sleeve (12).

8. The airbag cushion according to any one of claims 1 to 6, characterized in that: The airbag strip (1) comprises a long air path platform (9) and unit bags (13) linearly arranged along the length direction of the air path platform (9); the air path channel (2) is arranged on the air path platform (9) and communicates with each unit bag (13) along the way.

9. The airbag cushion according to claim 8, characterized in that: The gas path platform (9) comprises an upper plate and a lower plate, which are vertically stacked and enclosed by partial welding to form the gas path channel (2) and the connecting platform (3).

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 (14) and a limiting block (15) for clamping and wrapping the airbag cushion (14).

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