阅读说明：本技术 拉伸式充气装置及充气气囊 (Stretching type inflating device and inflating air bag ) 是由 刘志明 于 2020-06-11 设计创作，主要内容包括：本发明公开一种拉伸式充气装置,包括第一单向阀、第二单向阀、拉伸后可回弹的弹性件及呈柔性的密封外罩；所述密封外罩呈中空结构,所述密封外罩的一端设有可与其内部连通的进气口,另一端设有可与其内部连通的出气口；所述第一单向阀设置于所述进气口以使气体从外部进入所述密封外罩的内部；所述第二单向阀设置于所述出气口以使气体从所述密封外罩的内部流出；所述弹性件内置于所述密封外罩内,且一端连接于所述密封外罩的一端,另一端连接于所述密封外罩的另一端；在收缩时,所述弹性件带动所述密封外罩收缩成扁平状。本发明拉伸式充气装置具有体积小,携带、存放及使用十分方便的优点。另,本发明还公开一种充气气囊。(The invention discloses a stretching type inflating device which comprises a first one-way valve, a second one-way valve, an elastic piece capable of rebounding after stretching and a flexible sealing outer cover, wherein the first one-way valve is arranged on the outer side of the first one-way valve; the sealing outer cover is of a hollow structure, one end of the sealing outer cover is provided with an air inlet which can be communicated with the interior of the sealing outer cover, and the other end of the sealing outer cover is provided with an air outlet which can be communicated with the interior of the sealing outer cover; the first one-way valve is arranged at the gas inlet so as to enable gas to enter the sealed outer cover from the outside; the second one-way valve is arranged at the air outlet so as to enable air to flow out of the interior of the sealed outer cover; the elastic piece is arranged in the sealed outer cover, one end of the elastic piece is connected to one end of the sealed outer cover, and the other end of the elastic piece is connected to the other end of the sealed outer cover; when the sealing cover shrinks, the elastic piece drives the sealing cover to shrink into a flat shape. The stretching type inflating device has the advantages of small volume and convenient carrying, storage and use. In addition, the invention also discloses an inflatable air bag.)

1. A stretching type aerating device which characterized in that: comprises a first one-way valve, a second one-way valve, an elastic part which can rebound after being stretched and a flexible sealing outer cover; the sealing outer cover is of a hollow structure, one end of the sealing outer cover is provided with an air inlet which can be communicated with the interior of the sealing outer cover, and the other end of the sealing outer cover is provided with an air outlet which can be communicated with the interior of the sealing outer cover; the first one-way valve is arranged at the gas inlet so as to enable gas to enter the sealed outer cover from the outside; the second one-way valve is arranged at the air outlet so as to enable air to flow out of the interior of the sealed outer cover; the elastic piece is arranged in the sealed outer cover, one end of the elastic piece is connected to one end of the sealed outer cover, and the other end of the elastic piece is connected to the other end of the sealed outer cover; when the sealing cover shrinks, the elastic piece drives the sealing cover to shrink into a flat shape.

2. The stretch inflator of claim 1, wherein: the elastic member is cone-shaped after being stretched.

3. The stretch inflator of claim 1, wherein: the elastic member has a structure spirally extending outward around a center point.

4. The stretch inflator of claim 1, wherein: the elastic piece is a plane spiral spring.

5. The stretch inflator of claim 1, wherein: and the inner wall of the sealing outer cover is connected with the elastic piece.

6. The stretch inflator of claim 5, wherein: the inner arm of the sealed outer cover is provided with a connecting part, and the connecting part is connected with the elastic part.

7. The stretch inflator of claim 1, wherein: at least one of the two ends of the sealing outer cover is provided with a mounting plate.

8. An inflatable airbag, characterized in that: the stretching type inflating device comprises an air bag and the stretching type inflating device as claimed in any one of claims 1 to 7, wherein the air bag is provided with an inflating opening, the inflating device is arranged on the outer side wall of the air bag, and the air outlet is connected with the inflating opening.

Technical Field

The invention relates to an inflating device, in particular to a stretching inflating device and an inflating airbag which are small in size and convenient to carry, store and use.

Background

Inflatable bladders may be used in various aspects of life, for example, as pillows, neck wraps, swim rings, and mattresses. When the inflatable bag is not used, the internal gas can be released, the volume is reduced, the inflatable bag is convenient to store or carry, and the inflatable bag can be inflated by virtue of an inflating device or an inflator pump when being used, so that a specific use shape is quickly formed. The existing inflatable pillow and neck protection ring can be independently provided with a small manual inflation valve due to small volume and small inflation quantity, and the inflation valve is manually operated to inflate during use without other inflation equipment. However, for the mattress with a large volume and a large inflation amount, the existing small manual inflation valve cannot meet the use requirement, and though the mattress can be inflated by other large inflation equipment, the inflation equipment needs to be carried along with the mattress, and the size of the inflation equipment is large, so that the convenience of carrying, storing and using is influenced.

Disclosure of Invention

The invention aims to provide a stretching type inflating device which is small in size and very convenient to carry, store and use.

Another object of the present invention is to provide an inflatable air bag which is convenient to carry, store and use.

In order to achieve the purpose, the stretching type inflating device provided by the invention comprises a first one-way valve, a second one-way valve, an elastic piece capable of rebounding after stretching and a flexible sealing outer cover; the sealing outer cover is of a hollow structure, one end of the sealing outer cover is provided with an air inlet which can be communicated with the interior of the sealing outer cover, and the other end of the sealing outer cover is provided with an air outlet which can be communicated with the interior of the sealing outer cover; the first one-way valve is arranged at the gas inlet so as to enable gas to enter the sealed outer cover from the outside; the second one-way valve is arranged at the air outlet so as to enable air to flow out of the interior of the sealed outer cover; the elastic piece is arranged in the sealed outer cover, one end of the elastic piece is connected to one end of the sealed outer cover, and the other end of the elastic piece is connected to the other end of the sealed outer cover; when the sealing cover shrinks, the elastic piece drives the sealing cover to shrink into a flat shape.

Compared with the prior art, the gas-liquid separator has the advantages that the first one-way valve and the second one-way valve are arranged at the two ends of the sealed outer cover, so that gas can only enter the sealed outer cover from one end of the sealed outer cover and flow out from the other end of the sealed outer cover; and when the elastic piece contracts, the inside of the sealed outer cover is shrunk to realize the purpose of inflation. Because the elastic piece and the sealing outer cover are flat when the elastic piece is in a contraction state and have small volume, the elastic piece and the sealing outer cover are arranged on the outer side of the inflatable air bag with large volume and do not occupy space, so that the large inflatable air bag can be inflated at any time, troubles caused by using other inflating equipment are avoided, the elastic piece is very convenient to carry, store and use, and the cost is very low.

Preferably, the elastic member is tapered after stretching.

Preferably, the elastic member has a structure spirally extending outward around a center point.

Preferably, the elastic member is a planar coil spring.

Preferably, the inner wall of the sealed housing is connected with the elastic member. Therefore, the elastic part can be positioned, and the stable connection between the elastic part and the sealing outer cover is ensured.

Specifically, the inner arm of the sealed outer cover is provided with a connecting part, and the connecting part is connected with the elastic part. Through setting up connecting portion, can prevent the elastic component when connect to stretch or contract relatively sealed dustcoat takes place great aversion, guarantees the stability of operation.

Preferably, at least one of the two ends of the sealing housing is provided with a mounting plate.

The utility model provides an inflatable airbag, includes gasbag and tensile formula aerating device, the gasbag is equipped with the inflation inlet, aerating device set up in the lateral wall of gasbag just the gas outlet with the inflation inlet is connected.

Drawings

FIG. 1 is a perspective view of the stretch inflator of the present invention shown retracted.

FIG. 2 is a perspective view of the stretch inflator of the present invention as it is stretched.

FIG. 3 is a schematic view of the elastic member of the stretch inflator of the present invention as it is stretched.

FIG. 4 is a structural view of the inflatable airbag of the present invention.

Detailed Description

In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following detailed description is given with reference to the embodiments and the accompanying drawings.

As shown in fig. 1 to 3, the stretch type inflator 100 of the present invention includes a first check valve 1, a second check valve 2, an elastic member 3 that can be elastically restored after stretching, and a sealing cover 4 that is flexible; the sealing outer cover 4 is made of a plastic film material with good air tightness and toughness, is of a hollow structure, and is of a cone structure after being completely stretched. The end with the smaller diameter of the sealing outer cover 4 is provided with an air inlet 41 which can be communicated with the inside of the sealing outer cover, and the end with the larger diameter is provided with an air outlet 42 which can be communicated with the inside of the sealing outer cover. The first check valve 1 is arranged at the gas inlet 41, and the first check valve 1 only enables gas to enter the sealed outer cover 4 from the outside and cannot enable the gas to flow out of the outside from the inside; the second check valve 2 is disposed at the air outlet 42. The second check valve 2 allows only gas to flow from the inside to the outside of the sealing cover 4, but does not allow gas to flow from the outside to the inside. The elastic element 3 is arranged in the sealed outer cover 4, one end of the elastic element is connected with one end of the sealed outer cover 4, and the other end of the elastic element is connected with the other end of the sealed outer cover 4; when the sealing cover is contracted, the elastic piece 3 drives the sealing cover 4 to be contracted into a flat shape. In particular, the connection between the inner wall of the sealed housing 4 and the elastic element 3 can position the elastic element 3, so as to ensure the stable connection between the elastic element and the sealed housing 4. The inner wall of the sealed outer cover 4 is provided with a connecting part 43, and the connecting part 43 is connected with the elastic part 3. By arranging the connecting part 43, the elastic part 3 can be prevented from relatively displacing relative to the sealed outer cover 4 when being extended or contracted, and the stability of operation is ensured.

At least one of the two ends of the sealing cover 4 is provided with a mounting plate. In this embodiment, mounting plates 44 and 45 are disposed at both ends of the sealing housing.

The elastic member 3 is tapered or tower-shaped after being stretched.

The elastic member 3 has a structure spirally extending outward around a center point.

The elastic member 3 is a planar coil spring.

As shown in fig. 4, the stretch type inflator 100 of the present invention may be installed in an inflatable airbag 200, and is formed integrally with the inflatable airbag 200, the inflatable airbag includes an airbag 201 and the stretch type inflator 100, the airbag 201 is provided with an inflation port 202, the inflator 100 is disposed on an outer side wall of the airbag 201, and the air outlet 42 is connected to the inflation port 202. The air cell 201 of the present invention may be an air mattress, but is not limited thereto.

Compared with the prior art, the gas-liquid separator has the advantages that the first check valve 1 and the second check valve 2 are arranged at the two ends of the sealed outer cover 4, so that gas can enter the sealed outer cover 4 from one end and flow out from the other end of the sealed outer cover 4; and through setting up the elastic component 3 in the said sealed dustcoat 4, when stretching the said elastic component 3, it is flexible the inside of the said sealed dustcoat 4 can be expanded, achieve the goal of breathing in, when the said elastic component 3 shrinks, the inside of the said sealed dustcoat 4 shrinks, achieve the goal of inflating. Because the elastic part 3 and the sealing outer cover 4 are flat in the contraction state and small in size, the elastic part is arranged on the outer side of the inflatable air bag with large size, so that the space is not occupied, the large inflatable air bag can be inflated at any time, the trouble caused by using other inflating equipment is avoided, the elastic part is very convenient to carry, store and use, and the cost is very low.

The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the present invention, which is therefore intended to cover all equivalent changes and modifications within the scope of the present invention.