WO2021012347A1

WO2021012347A1 - Air-inflation structure of air-inflation product

Info

Publication number: WO2021012347A1
Application number: PCT/CN2019/102571
Authority: WO
Inventors: 陈挺
Original assignee: 宁波北斗户外用品有限公司
Priority date: 2019-07-22
Filing date: 2019-08-26
Publication date: 2021-01-28
Also published as: CN210249194U; DE202019105536U1

Abstract

Disclosed is an air-inflation structure of an air-inflation product, the air-inflation structure comprising an air bag body (1), an air inflation portion (2) is arranged on the air bag body (1), one end of the air inflation portion (2) is provided with an opening portion (23), a sealing portion (4) is arranged on the air inflation portion (2), the interior of the air bag body (1) is provided with a plurality of inner air storage air bags, and air inlets (3) of the inner air storage air bags are fixedly connected to the opening portion (23) of the air inflation portion (2); and the air-inflation structure of the air-inflation product has the advantages that the cost is reduced, and the interior of the product can be rapidly filled with air.

Description

Inflatable structure of inflatable product

Technical field

The utility model relates to an inflatable product, in particular to an inflatable structure of an inflatable product.

Background technique

With the improvement of people's material level, people often go to nearby parks or beaches and other places to play, and these places have less places to rest. Therefore, inflatable sofas or inflatable beds are convenient to carry, simple to use, and high in comfort. And it is favored by more people.

The inflatable sofas or inflatable beds on the market have a single-layer structure, so it is necessary to coat the inner surface with a coating to increase the air tightness, which also leads to a higher cost of inflatable products.

Summary of the invention

The technical problem to be solved by the utility model is to provide an inflatable structure for inflatable products with low cost and convenient use.

The technical solution adopted by the present utility model to solve the above technical problems is: an inflatable structure for inflatable products, including an airbag body, the airbag body is provided with an inflator, one end of the inflator is provided with an opening, and the inflator A sealing part is arranged on the airbag body, a plurality of internal storage airbags are arranged in the airbag body, and the air inlet of the internal storage airbag is fixedly connected with the opening of the inflation part.

Compared with the above solution, the air inlet area of the internal storage airbag is directly proportional to its air storage capacity.

Compared with the above solution, a further improvement is that the opening of the inflator is provided with a number of partition belts, and the partition belt divides the opening of the inflator into a number of inflation ports. The number of the inflation ports is proportional to the air intake of the inner storage airbag. The number of ports is the same, and the air inlet of the inner storage airbag is fixedly connected with the inflation port.

Compared with the above-mentioned solution, a further improvement is that the partition strips are independent of each other and are linear, and the extension direction of the partition strips is the same as the opening direction of the opening.

Compared with the above solution, the number of the inflatable openings is 3, the partition belt is connected end to end to form a quadrilateral area, each vertex of the quadrilateral is connected to the opening, and one of the quadrilaterals is opposite The corner line is parallel to the opening direction of the opening.

Compared with the above solution, the number of the inflatable openings is 3, the partition belt is connected end to end to form a quadrilateral area, two opposite vertices of the quadrilateral are connected to the opening, and the other two quadrilaterals The vertices are respectively connected to one end of the respective auxiliary line, and the other end of the auxiliary line is in contact with the opening.

Compared with the above solution, a further improvement is provided in the airbag body with several spacers. The isolator divides the inside of the airbag body into several air cavities, and the inner storage airbag is located in the air cavity.

Compared with the above solution, a further improvement is that the isolator divides the airbag body into a first air cavity, a second air cavity and a third air cavity, the first air cavity and the third air cavity are located on both sides of the airbag body, The second air cavity is located between the first air cavity and the third air cavity, and a first inner storage airbag and a second inner storage airbag are respectively provided in the first, second and third air chambers And the third internal storage airbag.

Compared with the above solution, a further improvement is that the first air cavity is communicated with the third air cavity, and the second air cavity is isolated from the rest of the air cavity.

Compared with the above solution, a further improvement is that the first internal storage airbag communicates with the third internal storage airbag.

Compared with the prior art, the utility model has the advantages that an internal storage airbag is provided in the airbag body to realize the function of air storage, which saves the cost of coating and reduces the material cost of the product; the structure of the inflation port ensures that The air can smoothly enter the internal storage airbag and can be filled with air, avoiding the defect of insufficient support caused by insufficient air.

Description of the drawings

Figure 1 is a schematic diagram of the utility model.

Figure 2 is a sectional view of the utility model.

Fig. 3 is a schematic view of the opening of the embodiment 1 of the present invention.

Figure 4 is a schematic view of the opening of Embodiment 2 of the present invention.

Figure 5 is a schematic view of the opening of the third embodiment of the present invention.

Detailed ways

The following describes the utility model in further detail in conjunction with the embodiments of the drawings.

Fig. 1 is an inflatable structure of an inflatable product, including an airbag body 1, which is in the shape of a tetrahedron. The airbag body 1 is made of flexible cloth, and has a large area inside to accommodate gas. The upper end surface of the airbag body 1 is a wavy curved surface. A person lies on the upper end surface of the airbag body 1, and the curved shape of the upper end surface of the airbag body 1 is adapted to the back side of the human body. The height of the upper end surface of the airbag body 1 gradually decreases from one end to the other end. The head of the airbag is located at the high end of the airbag body 1, and the foot is located at the low end of the upper end.

The airbag body 1 includes a plurality of air chambers, and a plurality of internal storage airbags are arranged in the air chambers, and the internal storage airbags are used for storing gas to support the entire product.

The side surface of the airbag body 1 is provided with an inflator 2 communicating with the air cavity, and the side surface is located on the side of the upper end surface of the airbag body 1 where the human head is placed. The inflatable part 2 is in the shape of a truncated cone when fully deployed. The inner end of the inflatable part 2 has a small diameter and is directly connected to the airbag body 1, and the outer end of the inflatable part 2 has a larger diameter and is far from the airbag body 1. The extending direction of the inflator 2 is the lying direction of the human body on the airbag body 1. The specific shape of the inflatable part 2 is shown in Figures 1 and 2.

The end of the inflator 2 away from the airbag body 1 is provided with an opening 23 from which gas enters the inflator 2 and into the inner storage airbag. The opening 23 is provided with a partition 22, the partition 22 is made of a edging tape, the partition 22 divides the opening 23 into a plurality of inflation ports 21, the partition 22 is used to divide the opening 23 is divided and the area of each inflator 21 after the opening 23 is fully opened is ensured. The number of the inflation ports 21 is the same as the number of the air inlets 3 of the inner storage airbag, and the opening area of the inflation ports 21 is proportional to the air storage capacity of the inner storage airbag. The air inlet 3 of the inner storage airbag is fixedly connected with the air inlet 21, that is, the inner side of the air inlet 21 and the outer side of the air inlet 3 of the inner airbag are relatively fixed by sewing, glue or the like. More specifically, the air inlet 3 of the inner storage airbag and the end of the inflation opening 21 facing outward are aligned, the end faces of the air inlet 3 of the adjacent inner storage airbag are aligned, and the two are aligned and then extend into the corresponding half In the U-shaped area of the long edging belt, the two opposing cloth strips of the edging belt are fixed by sewing, thereby fixing the air inlet 21 and the air inlet 3, protecting the interface and making the interface more beautiful .

The partition belt 22 of the present invention divides the opening 23 into three inflation ports 21. The present invention provides three examples in total from Example 1 to Example 3 with regard to the arrangement of the partitioning belt 22 of the inflatable part 2. The three embodiments are shown in FIGS. 3 to 5 respectively, and the arrow directions in FIGS. 3, 4, and 5 are the opening directions of the opening 23.

Embodiment 1: This embodiment has two separation belts 22, both ends of the separation belt 22 are fixedly connected to the opening 23, and the separation belt 22 is straightened when the opening 23 is fully opened, thereby restricting the opening 23 The opening size of the partition strip 22 is parallel to the opening direction of the opening 23. The shape of the air inlet 3 of this embodiment is shown in FIG. 3.

Example 2: The two ends of the two separation belts 22 are connected to each other and fixedly connected to the opening 23 at two connection points, and the connection direction of the two connection points is the opening direction of the opening 23. The two separation belts 22 is the main separation belt 22. Two of the separation belts 22 are fixedly connected to one end of the auxiliary line 5 at the middle position, and the other end of the auxiliary line 5 is fixedly connected to the opening 23, and the auxiliary line 5 is perpendicular to the Regarding the opening direction of the opening 23, the auxiliary line 5 is used to pull the two main separation belts 22 apart. After the opening 23 is fully opened, the separation belt 22 takes a rhombus shape under the action of the auxiliary line 5, the rhombus area is an air inlet 3, and two sides of the rhombus are the remaining two air inlets 3. The shape of the air inlet 3 of this embodiment is shown in FIG. 4.

Embodiment 3: The partition belt 22 encloses a rectangular area, the four vertices of the partition belt 22 are located on the opening 23, and a diagonal extension direction of the partition belt 22 is the opening direction of the opening 23. The schematic diagram of the air inlet 3 of this embodiment is shown in FIG. 5.

The dimensions of the above three embodiments are calculated below. Assuming that the opening 23 is circular after opening, there are three internal storage airbags in the airbag body 1: a first internal storage airbag, a second internal storage airbag, and a third internal storage airbag. The air storage capacity of each internal storage airbag is respectively 0.8, 1.1 and 1.1 cubic meters, the first inner storage airbag is in the middle, and the remaining inner storage airbags are on both sides respectively. The air intake area of the air inlet 3 is proportional to the air storage capacity of the corresponding internal storage airbag, so the ratio of the area of the air intake 3 of the first internal storage airbag to the opening 23 is: 0.8/3=26.66% The ratio of the area of the air inlet 3 of the second internal storage airbag and the third internal storage airbag to the opening 23 is: 1.1/3=36.66%.

Let the diameter of the opening 23 be D, the diameter of the opening 23 parallel to the opening direction is the first diameter, in Example 1: the distance between the partition 22 and the first diameter is L, and the partition in Examples 2 and 3 The vertical distance between the upper apex and the first diameter is L.

The air inlet 3 of the first internal storage airbag at the middle position of Embodiment 1 can be regarded as being formed by a rectangle with a first diameter as the long side minus 4 small curved surfaces. For the convenience of calculation, the two partitions The belts 22 are symmetrical with each other with the first diameter as the symmetry line. Because the area of the 4 small arcs is small and negligible, only the area of the rectangle is calculated. From the area of the air inlet 3 of the first internal storage airbag: the area of the air inlet 3 of the second internal storage airbag = 0.8: 1.1, the formula can be obtained:

2DL: (0.5*π*(D/2) ² -DL)=8/11

πD ² -8DL=22DL

πD=30L

L=πD/30

Example 2 is the same as Example 3: DL: (0.5π(D/2) ² -0.5DL) = 8/11

22DL=2πD ² -8DL

15L=πD

L=πD/15

A sealing part 4 is provided on the end of the inflator 2 away from the airbag body 1, and the sealing part 4 is used to seal the opening of the inflator 2 to prevent air leakage. The sealing portion 4 is composed of a flexible board 41, a male buckle 42 and a female buckle 43 that cooperate with each other. The flexible plate 41 is a deformable long straight plate composed of plastic or thin metal plate, and the flexible plate 41 is perpendicular to the opening direction of the opening 23 when the opening 23 is in a closed state. The two flexible plates 41 are fixed to the outside of the outer end of the inflator 2 in parallel to each other by sewing. When the flexible plate 41 is not stressed, it is a straight plate. The flexible plate 41 pulls the outer end of the inflatable part 2 into two parallel lines, thereby closing the opening of the inflatable part 2. The male buckle 42 and the female buckle 43 are respectively located at two ends of the flexible board 41 and connected to one end of the flexible board 41 by a rope or fabric. After the flexible plate 41 closes the opening, use the flexible plate 41 as the rotation axis to rotate clockwise or clockwise or counterclockwise for a few times and allow the gas in the product to fully prop up the product, and finally insert the male buckle 42 on one side into the other The female buckle 43 on the side realizes the final seal.

The inflator 2 is provided with a partition. The partition divides the opening of the inflator 2 into a number of air inlets 3. Each of the air inlets 3 and the air cavity correspond to each other in position and number, that is, each Each of the air chambers has a corresponding air inlet 3 in the inflator 2, each air inlet 21 is independent of each other through a barrier film, and each air inlet 3 is only connected to a corresponding air chamber.

In the existing technology, the outer layer cloth generally achieves the sealing effect by adding a coating, and a sealing material needs to be added at each sewing interface. The material cost is high, and the processing is complicated and takes a long time, so the total cost is high.

In order to reduce material and processing costs, each of the air chambers of the present invention is provided with an internal storage air bag, and each of the internal storage air bags communicates with the air inlet 3. The inner storage airbag is made of an airtight soft plastic film, the shape of the inner storage airbag corresponds to each air cavity, and the air in the air inlet 3 is stored in the inner storage airbag. The mouth end of the inner storage airbag is fixedly connected with the inner side of the outer end of the inflator 2 to realize the sealing from the air intake to the air storage, and reduce the processing difficulty. An insulator 14 is provided in the airbag body to divide the inside of the body into several regions to form individual air chambers, and each of the internal storage airbags is located in the region divided by the insulator 14 respectively. The isolator 14 is made of ordinary cloth. The isolator 14 is fixedly connected to the upper and lower surfaces of the main body by sewing. The isolator 14 is U-shaped in the present invention and forms a second air cavity in the main body. After 13, the first air cavity 11 and the third air cavity 12 communicating on both sides are naturally obtained.

The present utility model provides four embodiments including Embodiment 4 to Embodiment 7 for the arrangement of the inner storage airbag and the air cavity.

Embodiment 4: The airbag body 1 is provided with three air chambers, namely the first air chamber 11, the third air chamber 12, and the second air chamber 13 located between the left third air chamber 12, respectively. The first air cavity 11 communicates with the third air cavity 12 and is U-shaped as a whole. The second air cavity 13 does not communicate with the air cavities on both sides. The internal storage airbags in the first air chamber 11 and the third air chamber 12 of the present invention are the same first internal storage airbag 15, the first internal storage airbag 15 is cylindrical, and the first internal storage airbag 15 Both ends of the airbag 15 are open and are respectively fixedly connected to the inner sides of the corresponding left and right air inlets 3. An independent third internal storage airbag 17 is provided in the second air cavity 13. One end of the third internal storage airbag 17 is open and is fixedly connected to the middle air inlet 3, and the other One end is closed. The schematic diagram of this embodiment is shown in Figure 2.

Embodiment 5: The difference between this embodiment and Embodiment 1 is that the left, right, and middle three air chambers are isolated from each other and are in a straight cylindrical shape after being inflated. The same first internal storage is provided in the air chambers. Airbag 15.

Embodiment 6: The airbag body 1 is provided with 4 air cavities, the 4 air cavities are arranged in a straight line, the two air cavities in the middle are connected at the ends and the whole is U-shaped, and the two air cavities on both sides are in a U shape. The ends are connected in a U shape as a whole, and two U shapes are nested with each other. The two U-shaped air cavities are respectively equipped with first internal storage airbags 15 that are independent of each other, and a total of 4 openings at both ends of the first internal storage airbag 15 are fixed to the inside of the four independent air inlets 3 respectively. connection.

Embodiment 7: The difference between this embodiment and Embodiment 3 is that an independent third inner storage airbag 17 is inserted between the two straight cylindrical portions of the U-shaped air cavity on the inner side. Therefore, this embodiment has 5 straight cylindrical shapes. There are 5 air inlets 3 isolated from each other in the inflatable part 2.

Claims

An inflatable structure for an inflatable product includes an airbag body (1), an inflator (2) is provided on the airbag body (1), an opening (23) is provided at one end of the inflator (2), and The inflator (2) is provided with a sealing portion (4), characterized in that a plurality of internal storage airbags are arranged in the airbag body (1), and the air inlet (3) of the internal storage airbag and the inflator (2) ) The opening (23) is fixedly connected.
The inflatable structure of an inflatable product according to claim 1, characterized in that the area of the air inlet (3) of the internal storage airbag is proportional to its air storage capacity.
The inflatable structure of an inflatable product according to claim 2, characterized in that the opening (23) of the inflatable part (2) is provided with a plurality of partition belts (22), and the partition belt (22) inflates The opening (23) of the part (2) is divided into several inflation ports (21), the number of the inflation ports (21) is the same as the number of the air inlets (3) of the inner storage airbag, The air port (3) is fixedly connected with the inflation port (21).
The inflatable structure of an inflatable product according to claim 3, characterized in that the separation belts (22) are linearly independent from each other, and the extension direction of the separation belts (22) and the opening of the opening (23) The same direction.
The inflatable structure of an inflatable product according to claim 3, characterized in that the number of the inflatable openings (21) is 3, the separating belt (22) is connected end to end to form a quadrilateral area, and the Each vertex of the quadrilateral is in contact with the opening (23), and a diagonal line in the quadrilateral is parallel to the opening direction of the opening (23).
The inflatable structure of an inflatable product according to claim 3, characterized in that the number of the inflatable openings (21) is 3, the separating belt (22) is connected end to end to form a quadrilateral area, and the Two opposing vertices of the quadrilateral are connected to the opening (23), the other two vertices of the quadrilateral are respectively connected to one end of the respective auxiliary line (5), and the other end of the auxiliary line (5) is connected to the opening (23) Pick up.
The inflatable structure of an inflatable product according to any one of claims 1-6, wherein the airbag body (1) is provided with a plurality of insulators (14), and the insulators (14) connect the airbag body (1) The interior is divided into several air chambers, and the inner storage airbag is located in the air chamber.
The inflatable structure of an inflatable product according to claim 7, characterized in that the insulator (14) divides the airbag body (1) into a first air cavity (11), a second air cavity (13) and The third air cavity (12), the first air cavity (11) and the third air cavity (12) are located on both sides of the airbag body (1), and the second air cavity (13) is located in the first air cavity ( 11) and the third air cavity (12), the first air cavity (11), the second air cavity (13) and the third air cavity (12) are respectively provided with a first internal storage air bag (15) , The second internal storage airbag (17) and the third internal storage airbag (16).
The inflatable structure of an inflatable product according to claim 8, wherein the first air cavity (11) and the third air cavity (12) communicate with each other, and the second air cavity (13) is The cavities are isolated.
The inflatable structure of an inflatable product according to claim 9, characterized in that the first inner storage airbag (15) and the third inner storage airbag (16) are connected.