Air bag cushion and mattress using same

Abstract

The utility model relates to an air bag cushion and a mattress using the same. A three-way connector on an existing air bag cushion is not reliable in sealing. The air bag comprises air bag strips which are tightly arranged in the front-back direction, the air bag strips are communicated with the outside through three-way connectors arranged at the ends of the air bag strips, each three-way connector comprises two outer pipe openings which are oppositely arranged in the front-back direction, and the corresponding outer pipe openings of every two adjacent three-way connectors are connected through a connecting pipe in an inserted mode. The corresponding outer pipe openings of the adjacent three-way connectors are communicated through the connecting pipes, the corresponding outer pipe openings are close to each other and arranged at the two ends of the connecting pipes in a sleeving mode, a wide overlapping area is formed through mutual insertion and sleeving of the outer pipe openings and the connecting pipes, then the sealing performance is improved by arranging a wide welding area, and the service life of the air bag cushion is prolonged; in addition, by setting the uniform diameter of the outer pipe orifice, the orientation of each outer pipe orifice does not need to be limited during assembly, the assembly efficiency is improved, the application range of the three-way connector is enlarged, and the use experience is improved.

Description

Technical Field

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

[0002] The existing mattress is provided with an airbag pad with adjustable air pressure. The airbag pad includes airbag strips arranged closely in the front-back direction. The airbag pad of any size is formed by splicing the airbag strips, which is convenient for filling and using in the mattress. Three-way joints are provided on each airbag strip, which not only ensure that adjacent airbag strips can be connected through the three-way joints, so that the air pressure in multiple airbag strips is kept balanced, but also ensure that the airbag strips can be connected to an external controller to adjust the air pressure, achieving the purpose of soft-hard adjustment. An axially arranged annular welding surface is formed between the corresponding ports of adjacent three-way joints, and the corresponding ports are hermetically connected through tight contact welding on the annular welding surface. Since the wall thickness at the periphery of the three-way joint port is small, the width of the annular welding surface is small, which in turn causes the welding part to be easily torn and damaged due to local deformation extrusion, resulting in the sealing failure between adjacent three-way joints, affecting the normal use of the airbag pad, shortening the service life of the airbag pad, and affecting the use experience. Summary of the Utility Model

[0003] In order to solve the deficiencies of the prior art, the utility model provides an airbag pad and a mattress using the same. The corresponding outer pipe orifices of adjacent three-way joints are connected through a connecting pipe. By inserting and sleeving the outer pipe orifice and the connecting pipe with each other, a relatively wide overlapping area is formed, and then the sealing performance is improved by setting a relatively wide welding area, the service life of the airbag pad is prolonged, the length of the outer pipe orifice can be effectively shortened, the applicable range of the three-way joint is increased, and the use experience is improved.

[0004] The utility model is realized in the following way: An airbag pad includes airbag strips arranged closely in the front-back direction. The airbag strips are communicated with the outside through three-way joints arranged at their ends. The three-way joint includes two outer pipe orifices arranged back to back in the front-back direction. The corresponding outer pipe orifices of adjacent three-way joints are connected through the insertion of a connecting pipe. The corresponding outer pipe orifices of adjacent three-way joints are connected through a connecting pipe. The corresponding outer pipe orifices approach each other and are sleeved on both ends of the connecting pipe. By inserting and sleeving the outer pipe orifice and the connecting pipe with each other, a relatively wide overlapping area is formed, and then the sealing performance is improved by setting a relatively wide welding area, the service life of the airbag pad is prolonged, and the assembly efficiency can be improved by setting a unified outer pipe orifice diameter without limiting the orientation of each outer pipe orifice during assembly, the applicable range of the three-way joint is increased, and the use experience is improved.

[0005] Preferably, the outer pipe orifices are coaxially arranged, and the corresponding outer pipe orifices of adjacent three-way joints are sleeved on both ends of the connecting pipe to make the outer pipe orifices hermetically connected. The two outer pipe orifices on the three-way joint are coaxially arranged and in opposite directions, which is convenient for the connection of adjacent three-way joints in the front-back direction and ensures that the outer pipe orifice and the connecting pipe are on the same straight line, effectively reducing the wind resistance.

[0006] Preferably, the end of the connecting pipe is inserted into the corresponding outer pipe orifice and adhesively sealed through circumferential welding. The connecting pipe is inserted into the outer pipe orifice and welded and sealed to ensure the sealing reliability between the connecting pipe and the outer pipe orifice and prevent extrusion damage at the welding position.

[0007] Preferably, the width of the overlapping welding area between the outer side wall of the end of the connecting pipe and the inner side wall of the corresponding outer pipe orifice is A, and A≥5mm, which not only ensures a good sealing effect between the outer pipe orifice and the connecting pipe, but also reduces the processing cost and difficulty by restricting the width of the welding area, thereby improving the use experience.

[0008] Preferably, the depths of the ends of the connecting pipe inserted into the corresponding outer pipe orifices are the same, ensuring balanced sealing performance and reliable tensile performance between both ends of the connecting pipe and the corresponding outer pipe orifices, and ensuring reliable connection between the corresponding outer pipe orifices through the connecting pipe.

[0009] Preferably, the inner edge diameters of the outer pipe orifices are the same, which is convenient for batch production, and the orientation of each outer pipe orifice does not need to be considered during assembly, improving the assembly efficiency and ensuring that it can be inserted and sleeved with either end of the connecting pipe.

[0010] Preferably, the inner edge diameter of the outer pipe orifice is the same as the outer edge diameter of the connecting pipe to reduce the gap between the inner wall of the outer pipe orifice and the outer wall of the connecting pipe. The outer pipe orifice is sleeved on the end of the connecting pipe, and the inner wall of the outer pipe orifice is closely attached to the outer wall of the end of the connecting pipe, which is not only convenient for welding, but also improves the sealing performance and ensures that the connecting pipe and the tee joint can meet the flow requirements.

[0011] Preferably, the end faces of the corresponding outer pipe orifices of adjacent tee joints are closely abutted and completely shield the connecting pipe, so that the airbag strips are arranged equidistantly in the front-back direction and form an overlapping welding area with equal width. The outer end faces of adjacent tee joints are closely abutted and limit the distance between adjacent airbag strips, which not only effectively hides the connecting pipe, improves the sealing performance and aesthetics, but also ensures that the airbag strips can be equally spaced by abutting, improving the assembly efficiency.

[0012] Preferably, the airbag strip includes a plurality of unit airbags arranged linearly, and the unit airbags are connected by an air passage laid along the length direction of the airbag strip, and the end of the air passage extends outward to form the tee joint. The unit airbags are arranged in a straight line and communicate with each other, which is not only convenient for the airbag strip to form an airbag pad by arranging side by side, but also ensures that the air pressures in the respective unit airbags on the same airbag strip can be adjusted synchronously, which is convenient for control and use. Adjacent airbag strips are connected through the corresponding outer pipe orifices of the tee joint to ensure sealed connection between adjacent airbag strips. The tee joint and the airbag strip are of an integral structure, which is convenient for assembly.

[0013] Preferably, grooves are provided at the front edge and the rear edge of the airbag strip. When adjacent airbag strips are joined together front to back, corresponding grooves are joined to form ventilation holes. The ventilation holes are used not only to reduce the amount of raw materials and lower costs, but also to ventilate and facilitate the downward diffusion of moisture.

[0014] A mattress using the airbag pad includes a pad body, which 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 is adjusted in hardness by inflating and deflating at a preset position, thereby improving the comfort of using the pad body.

[0015] The beneficial effects of the present utility model are as follows: The corresponding outer nozzles of adjacent three-way joints are connected by a connecting pipe. The corresponding outer nozzles approach each other and are sleeved on both ends of the connecting pipe. A relatively wide overlapping area is formed by the insertion of the outer nozzles and the connecting pipe, and then the sealing performance is improved by setting a relatively wide welding area, extending the service life of the airbag pad. In addition, by setting a unified diameter of the outer nozzles, it is not necessary to limit the orientation of each outer nozzle during assembly, improving the assembly efficiency, increasing the applicable range of the three-way joint, and enhancing the use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic assembly structure diagram of the airbag pad described in Embodiment 1;

[0017] Figure 2 It is a schematic partial cross-sectional structure diagram of the airbag pad described in Embodiment 1;

[0018] Figure 3 It is a schematic structure diagram of the airbag pad described in Embodiment 1;

[0019] Figure 4 It is a schematic disassembly structure diagram of the mattress described in Embodiment 2;

[0020] In the figure: 1, airbag strip; 2, three-way joint; 3, outer nozzle; 4, connecting pipe; 5, unit airbag; 6, air passage; 7, limiting block; 8, groove; 9, airbag pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following further illustrates the essential features of the present utility model in conjunction with the accompanying drawings of the specification and the specific embodiments.

[0022] Embodiment 1:

[0023] This embodiment provides an airbag pad.

[0024] As Figure 1 、 2An airbag cushion as shown in FIGS. 0 and 3 includes airbag strips 1 arranged closely in the front-to-back direction. The airbag strips 1 are communicated with the outside through tee joints 2 provided at their ends. The tee joints 2 include two outer pipe openings 3 arranged back-to-back in the front-to-back direction. The corresponding outer pipe openings 3 of adjacent tee joints 2 are inserted and connected through connecting pipes 4. The corresponding outer pipe openings 3 of adjacent tee joints 2 are connected through the connecting pipes 4. That is, a relatively wide overlapping area is formed by inserting and sleeving the outer pipe openings 3 and the connecting pipes 4, so as to improve the sealing performance by setting a relatively wide welding area, extend the service life of the airbag cushion 9, and also can improve the assembly efficiency by setting a unified diameter of the outer pipe openings 3, without limiting the orientation of each outer pipe opening 3 during assembly, increase the applicable range of the tee joints 2, and improve the user experience.

[0025] In this embodiment, the tee joint 2 is in a T shape and includes an inner pipe opening connected to the air passage 6 and outer pipe openings 3 arranged coaxially in the front-to-back direction. The tee joint 2 is connected to the air passage 6 through the inner pipe opening and is connected to the adjacent tee joints 2 in the front-to-back direction through the outer pipe openings 3, so that the adjacent airbag strips 1 are connected through the corresponding outer pipe openings 3, ensuring that the air pressures in the adjacent airbag strips 1 can be adjusted synchronously.

[0026] In this embodiment, the corresponding outer pipe openings 3 of adjacent tee joints 2 are connected by inserting and sleeving the connecting pipes 4. The two end ports of the connecting pipes 4 have the same diameter, and the outer pipe openings 3 have the same diameter. The two ends of the connecting pipes 4 are respectively inserted and sleeved with the corresponding outer pipe openings 3 and are adhesively sealed by circumferential welding, so that the adjacent tee joints 2 are hermetically connected. Specifically, the end of the connecting pipe 4 is axially inserted into the corresponding outer pipe opening 3, so as to form a radially overlapping annular overlapping area between the end of the connecting pipe 4 and the outer pipe opening 3, and a circumferential welding area is formed by welding the overlapping area to ensure their sealed connection.

[0027] In this embodiment, the inner edge diameter of the outer pipe opening 3 is the same as the outer edge diameter of the connecting pipe 4. After the insertion is in place, the inner wall of the outer pipe opening 3 is closely attached to the outer wall of the connecting pipe 4. By reducing the gap between the inner wall of the outer pipe opening 3 and the outer wall of the connecting pipe 4, it is convenient for welding, and thus the sealing reliability of the two is ensured. The end of the connecting pipe 4 is inserted into the corresponding outer pipe opening 3 and is adhesively sealed by circumferential welding. The welding method is preferably high-frequency welding or ultrasonic welding. The width of the overlapping welding area between the outer side wall of the end of the connecting pipe 4 and the inner side wall of the corresponding outer pipe opening 3 is A, A≥5mm. In the preferred scheme, A = 7mm. The parameter A can also be adjusted according to needs, which should also be regarded as the specific implementation manner of this embodiment.

[0028] In this embodiment, the outer pipe orifices 3 are coaxially arranged with each other. The corresponding outer pipe orifices 3 of adjacent three-way joints 2 are sleeved on both ends of the connecting pipe 4, so that the outer pipe orifices 3 are hermetically connected. The outer pipe orifices 3 on the same three-way joint 2 are coaxially arranged with each other and in opposite directions, which not only ensures that there is a linear flow path for the air flow between the two outer pipe orifices 3, effectively reducing the air resistance inside the three-way joint 2, but also ensures that the connecting pipe 4 bridging between adjacent three-way joints 2 is linearly arranged in the front-to-back direction, effectively reducing the air resistance between adjacent three-way joints 2, and is also convenient for front-to-back sequential plug-in assembly, improving the assembly efficiency.

[0029] In this embodiment, the insertion depths of the end portions of the connecting pipe 4 into the corresponding outer pipe orifices 3 are the same, ensuring that there is a welding area with the same width between the end portion of the connecting pipe 4 and the corresponding outer pipe orifice 3, and thus ensuring balanced sealing performance at each connection.

[0030] In this embodiment, the end faces of the corresponding outer pipe orifices 3 of adjacent three-way joints 2 tightly abut and completely cover the connecting pipe 4, so that the airbag strips 1 are arranged at equal distances in the front-to-back direction and form an overlapping welding area with equal width. Both sides of the connecting pipe 4 are completely inserted into the corresponding outer pipe orifices 3, causing the end faces of the corresponding outer pipe orifices 3 of adjacent three-way joints 2 to abut against each other. This not only increases the width of the welding area by completely wrapping the connecting pipe 4, improving the sealing reliability, but also enhances the aesthetics by completely covering the connecting pipe 4, and can also play a role in limiting the front-to-back position of adjacent airbag strips 1 through the abutment of the end faces of adjacent outer pipe orifices 3, facilitating the assembler to effectively control the distance between adjacent airbag strips 1 by tightly abutting the end faces of the outer pipe orifices 3, improving the assembly efficiency, and ensuring precise assembly between the airbag strips 1.

[0031] In this embodiment, grooves 8 are provided at the leading edge and trailing edge of the airbag strip 1. When adjacent airbag strips 1 are joined together in the front-to-back direction, the corresponding grooves 8 form ventilation holes through the joining. The ventilation holes are not only used to reduce the raw material consumption and lower the cost, but also play a role in ventilation and air permeability, facilitating the downward diffusion of moisture.

[0032] In this embodiment, the airbag strip 1 includes a plurality of unit airbags 5 arranged linearly. The unit airbags 5 are connected by air passage channels 6 laid along the length direction of the airbag strip 1, and the end portions of the air passage channels 6 extend outward to form the three-way joints 2. The unit airbags 5 are arranged in a straight line at equal distances, ensuring that the distances between the unit airbags 5 are the same, and thus facilitating the formation of an airbag pad 9 with a matrix of unit airbags 5 by joining the airbag strips 1, which not only improves the use comfort but also facilitates the assembly. The adjacent unit airbags 5 are connected by the air passage channels 6, so that the air pressures in the respective unit airbags 5 on the same airbag strip 1 can be adjusted synchronously. The adjacent airbag strips 1 are connected through the adjacent three-way joints 2, so that the air pressures in the adjacent airbag strips 1 can be adjusted synchronously. By connecting the airbag strips 1 in each partition on the airbag pad 9 in series, the air pressures in the airbag strips 1 in each partition can be adjusted synchronously, which not only simplifies the air path structure but also facilitates precise control and use.

[0033] Embodiment 2:

[0034] Compared with Embodiment 1, this embodiment provides a mattress.

[0035] As Figure 4 shown, the mattress includes a cushion body, and the cushion body includes an airbag cushion 9 and a limiting block 7 that clamps and wraps the airbag cushion 9. The limiting block 7 plays a role in clamping, positioning and protecting the airbag cushion 9, ensuring that the airbag cushion 9 is adjusted in hardness by inflating and deflating at a preset position, thereby improving the comfort of using the cushion body.

[0036] In this embodiment, the limiting block 7 is provided with through holes, and the number and positions of the through holes are matched with the unit airbags 5 on the airbag cushion 9 one by one. During installation, the limiting block 7 wraps the airbag cushion 9, and the through holes are sleeved on the corresponding unit airbags 5, so that each unit airbag 5 is limited by the inner wall of the through hole, ensuring that the unit airbag 5 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.

[0037] The other structures and effects of the airbag cushion in this embodiment are the same as those in Embodiment 1 and will not be repeated.

Claims

1. An airbag cushion, comprising airbag strips (1) closely arranged in the front-to-back direction, wherein the airbag strips (1) are communicated with the outside through tee joints (2) provided at their ends, characterized in that, The three-way joint (2) comprises two outer pipe openings (3) disposed in a front-to-back direction, and the corresponding outer pipe openings (3) of adjacent three-way joints (2) are connected by plugging through a connecting pipe (4).

2. The airbag cushion according to claim 1, characterized in that: The outer pipe openings (3) are coaxially arranged with each other, and the corresponding outer pipe openings (3) of adjacent three-way joints (2) are sleeved on the two ends of the connecting pipe (4) to ensure that the outer pipe openings (3) are sealed and connected.

3. The airbag cushion according to claim 2, wherein, The end of the connecting pipe (4) is inserted into the corresponding outer pipe opening (3) and is adhered and sealed by circumferential welding.

4. The airbag cushion according to claim 2, characterized in that, The width of the overlapping welding area between the outer side wall of the end of the connecting pipe (4) and the inner side wall of the corresponding outer pipe opening (3) is A, and A is ≥ 5 mm.

5. The airbag cushion according to claim 4, wherein, The ends of the connecting pipes (4) are inserted into the corresponding outer pipe openings (3) to the same depth.

6. The airbag cushion according to claim 1, characterized in that, The inner diameters of the outer pipe openings (3) are the same; or, the inner diameter of the outer pipe openings (3) is the same as the outer diameter of the connecting pipe (4), so as to reduce the gap between the inner wall of the outer pipe openings (3) and the outer wall of the connecting pipe (4).

7. The airbag cushion according to claim 2, characterized in that, The end faces of the corresponding outer pipe openings (3) of adjacent three-way joints (2) tightly contact and completely cover the connecting pipe (4), so that the airbag strips (1) are arranged equidistantly in the front-to-back direction and form overlapping welding areas of equal width.

8. An airbag cushion according to any one of claims 1-7, characterized in that, The airbag strip (1) comprises a plurality of linearly arranged unit bags (5), the unit bags (5) being connected via an air passage (6) laid along the length direction of the airbag strip (1), and the end of the air passage (6) extending outwards to form the three-way joint (2).

9. An airbag cushion according to any one of claims 1-7, characterized in that, The front and rear edges of the airbag strips (1) are provided with grooves (8); when adjacent airbag strips (1) are spliced together in the front-to-back direction, the corresponding grooves (8) are spliced together to form air holes.

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 comprises an airbag cushion (9) and a limiting block (7) for clamping and wrapping the airbag cushion (9).

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