CN217515786U - Air bag sealing structure - Google Patents
Air bag sealing structure Download PDFInfo
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- CN217515786U CN217515786U CN202123175069.2U CN202123175069U CN217515786U CN 217515786 U CN217515786 U CN 217515786U CN 202123175069 U CN202123175069 U CN 202123175069U CN 217515786 U CN217515786 U CN 217515786U
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- air bag
- air passage
- bag body
- sealing structure
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Abstract
The utility model relates to an air bag sealing structure, which comprises an air bag body; the air bag body is provided with at least one opening part; at least one channel part positioned at one side of the opening part is arranged in the air bag body; one side of the channel part, which is far away from the opening part, is provided with at least one accommodating space; the channel part comprises a front horn-shaped air passage close to the opening part, a middle air passage connected with the front horn-shaped air passage and a rear air passage connected with the middle air passage; the width of middle section air flue is 1/4 of preceding horn type air flue entrance width, and the back end air flue outside is the type of falling horn, and inside being divided partial flow into two widths for the air flue of 1/2 of middle section air flue width of back end air flue. The air bag sealing structure has the advantages of simple structure, low cost, high inflation speed and good air locking effect.
Description
Technical Field
The utility model relates to an air pocket technical field especially relates to an air pocket seal structure.
Background
Traditional gas column bag is including the bag body, includes at least one gas column on the bag body, and the air inlet of gas column is provided with the check valve membrane and stretches into one section distance in the gas column, and the check valve membrane comprises two valve diaphragms, adopts the check valve membrane to realize ending gas, has the structure complicacy, problem that manufacturing cost is high, and has easy gas leakage after a period for the problem that the guard effect of air pocket weakens.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the problems of the conventional airbag, it is necessary to provide an airbag sealing structure with a simple structure and a good air locking effect.
An air bag sealing structure comprises an air bag body; the air bag body is provided with at least one opening part; at least one channel part positioned at one side of the opening part is arranged in the air bag body;
one side of the channel part, which is far away from the opening part, is provided with at least one accommodating space;
the channel part comprises a front horn-shaped air passage close to the opening part, a middle air passage connected with the front horn-shaped air passage and a rear air passage connected with the middle air passage;
the width of middle section air flue is 1/4 of preceding horn type air flue entrance width, and the back end air flue outside is the type of falling horn, and inside being divided partial flow into two widths for the air flue of 1/2 of middle section air flue width of back end air flue.
In one embodiment, the shape of the flow dividing portion is a triangle or an inverted V-shape.
In one embodiment, the opening portion and the passage portion have at least one air inlet passage therebetween.
In one embodiment, the airbag body comprises at least one first substrate and at least one second substrate disposed on the first substrate.
In one embodiment, at least one connection portion is disposed on the first substrate and the second substrate.
In one embodiment, the airbag body is made of a hot-melt material.
In one embodiment, the airbag body is sealed by hot melting the airbag body at the middle section air passage after being inflated.
The air bag sealing structure of the utility model simplifies the air bag structure and the manufacturing process as no other check valve film is needed, thus saving raw materials and manufacturing cost; in addition, through the design of the channel part structure in the air bag body, when the air bag is inflated, the air pressure of the air flowing in through the front horn-shaped air passage is increased after passing through the middle air passage, and the air easily enters the air bag through the rear air passage; in addition, the divided part of the rear section air passage is divided into two air passages, and the gas filled in the air bag is reduced from flowing back to the outside of the air bag, so that the inflation speed is improved, and the inflation saturation in the air bag is ensured. In addition, the air bag body through centering on section air flue department carries out the hot melt after the air bag of this application is inflated and realizes sealing, and the air bag lock is angry effectual. In addition, because the width of middle section air flue is 1/4 of preceding horn type air flue entrance width, its middle section air flue diameter is little after aerifing, avoids scalding the heat-generating body and damages the air pocket when carrying out heat-seal boiling hot to press the sealing in the follow-up.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the air bag sealing structure of the present invention;
fig. 2 is a schematic structural view of another embodiment of the air bag sealing structure of the present invention;
the airbag comprises an airbag body 1, a first substrate 11, a second substrate 12, a connecting portion 13, an opening portion 14, an air inlet pipe channel 15, a channel portion 16, a front horn-shaped air channel 161, a middle air channel 162, a rear air channel 163, a containing space 17, a shunting portion 18 and a hot melt line 2.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. As used herein, the terms "vertical," "horizontal," "left," "right," "side," "other side," "end," "other end," and the like are used for descriptive purposes only and not for purposes of limitation as to the particular orientation of the components in the product or device.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1:
as shown in fig. 1, the air bag sealing structure of the present invention comprises an air bag body 1; the air bag body comprises at least one first base material 11 and at least one second base material 12 arranged on the first base material 11; at least one connecting part 13 is arranged on the first base material 11 and the second base material 12; the air bag body 1 is provided with at least one opening part 14; at least one channel part 16 positioned at one side of the opening part 14 is arranged in the air bag body 1; at least one air inlet pipe passage 15 is arranged between the opening part 14 and the passage part 16; at least one accommodating space 17 is arranged on one side of the channel part 16, which is far away from the opening part 14; the channel part 16 comprises a front horn air channel 161 close to the opening part 14, a middle air channel 162 connected with the front horn air channel 161, and a rear air channel 163 connected with the middle air channel 162; the width of the middle air passage 162 is 1/4 of the width of the inlet of the front trumpet-shaped air passage 161, the outer part of the rear air passage 163 is in the shape of an inverted trumpet, and the inner part of the rear air passage 163 is divided into two air passages 1/2 of which the width is 1/2 of the width of the middle air passage 162 by the dividing part 18. In this embodiment, the shunt part 18 is triangular, and the triangle may be hollow or solid; the air bag body 1 is made of hot-melt materials, and after the air bag body 1 is inflated, the air bag body 1 at the middle section air passage 162 is sealed through hot melting.
When needs are right the utility model discloses an air pocket body 1 of air pocket seal structure aerifys and when sealed, can follow the following step and go on:
a first step of inflating the opening 14 of the bag body 1;
secondly, air enters the accommodating space 17 through the channel part 16 to form bulging;
thirdly, when the accommodating space 17 is inflated to saturation, the channel part 16 is temporarily resisted and locked by the shunting part 18, and air is prevented from flowing back to the outside of the air bag body 1 from the channel part 16;
fourthly, after the air bag body is inflated, the air bag body 1 at the middle section air passage 162 is sealed in 1-2 seconds by hot melting.
Specifically, as shown in fig. 1, the air bag body 1 of the present invention is formed by connecting a first substrate 11 and a second substrate 12, the first substrate 11 and the second substrate 12 are made of a hot-melt material, more specifically, the hot-melt material is nylon or polyethylene terephthalate PET or high-density polyethylene PE, a connecting portion 13 is formed on the first substrate 11 and the second substrate 12 by hot-melting, and the air bag body 1 forms an accommodating space 17 capable of accommodating air, and the accommodating space 17 has a channel portion 16, the channel portion 16 includes a front horn-shaped air passage 161 close to the opening portion 14, a middle air passage 162 connected to the front horn-shaped air passage 161, and a rear air passage 163 connected to the middle air passage 162; the width of the middle air passage 162 is 1/4 of the width of the inlet of the front trumpet-shaped air passage 161, the outer part of the rear air passage 163 is in an inverted trumpet shape, the inner part of the rear air passage 163 is divided into two air passages 1/2 with the width of the middle air passage 162 by the flow dividing part 18, the flow dividing part 18 is also formed by hot melting, and the flow dividing part 18 is in a hollow triangle shape in the embodiment; an air inlet pipe channel 15 is arranged between the channel part 16 and the opening part 14, so that a single opening part 14 can be communicated with a plurality of channel parts 16 and further communicated with a plurality of accommodating spaces 17; when the airbag body 1 needs to be inflated and sealed, a blowing nozzle of an inflation device can be inserted into the opening portion 14 of the airbag body 1 to inflate the airbag body 1, so that air enters the accommodating space 17 through the front horn-shaped air passage 161, the middle air passage 162 and the rear air passage 163 of the passage portion 16 in sequence to inflate the accommodating space 17; because the air pressure of the air flowing in through the front trumpet-shaped air passage 161 is increased after passing through the middle air passage 162, the air easily enters the accommodating space 17 of the air bag through the rear air passage 163, the divided part of the rear air passage 163 flows into two air passages, and the air filled in the air bag is prevented from flowing back to the outside of the air bag, so that the inflation speed is improved, and the inflation saturation in the air bag is ensured; when the pressure of the air inlet pipe channel 15 and the pressure of the accommodating space 17 reach balance, the next accommodating space 17 starts to be inflated until the accommodating spaces 17 are completely inflated, and when the accommodating spaces 17 are inflated to reach saturation, the material of the air bag body 1 is pulled, the channel part 16 is temporarily locked due to the existence of the flow dividing part 18, and in 1-2 seconds after the channel part 16 is locked and sealed, the air bag body 1 is rolled along the hot melting line 2 at the middle air passage 162 by using the heat-sealing roller, so that the first substrate 11 and the second substrate 12 are hot-melted together to realize sealing.
Example 2:
as shown in fig. 2, the structure and principle of the present embodiment are substantially the same as those of embodiment 1, except that the shape of the flow dividing portion 18 of the present embodiment is an inverted V-shape, and the inflation and use manner of the airbag of the present embodiment is the same as that of embodiment 1, and the description thereof is omitted.
In addition, the accommodating space 17 in the airbag sealing structure of the present application may be only one, and will not be described herein again.
The air bag sealing structure of the utility model simplifies the air bag structure and the manufacturing process as no other check valve film is needed, thus saving raw materials and manufacturing cost; in addition, through the design of the channel part structure in the air bag body, when the air bag is inflated, the air pressure of the air flowing in through the front horn-shaped air passage is increased after passing through the middle air passage, and the air easily enters the air bag through the rear air passage; in addition, the part of the rear section air passage which is divided into two air passages reduces the backflow of the gas filled in the air bag to the outside of the air bag, thereby improving the inflation speed and ensuring the inflation saturation in the air bag. In addition, the air bag of this application is inflated the back and is realized sealedly through carrying out the hot melt to the air bag body of midsection air flue department, and the air bag lock is angry effectual. In addition, because the width of middle section air flue is 1/4 of preceding horn type air flue entrance width, its middle section air flue diameter is little after aerifing, avoids scalding the heat-generating body and damages the air pocket when carrying out heat-seal boiling hot to press the sealing in the follow-up.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. An air bag sealing structure comprises an air bag body;
the air bag body is provided with at least one opening part;
at least one channel part positioned at one side of the opening part is arranged in the air bag body;
one side of the channel part, which is far away from the opening part, is provided with at least one accommodating space;
the channel part comprises a front horn-shaped air passage close to the opening part, a middle air passage connected with the front horn-shaped air passage and a rear air passage connected with the middle air passage; the width of the middle section air passage is 1/4 of the width of the inlet of the front trumpet-shaped air passage, the outer part of the rear section air passage is in an inverted trumpet shape, and the divided part in the rear section air passage is divided into two 1/2 air passages with the width of the middle section air passage;
the shape of reposition of redundant personnel portion is triangle-shaped or inverted V font.
2. The air bag sealing structure according to claim 1, wherein: at least one air inlet pipe channel is arranged between the opening part and the channel part.
3. The air bag sealing structure according to claim 1, wherein: the air bag body comprises at least one first base material and at least one second base material arranged on the first base material.
4. The air bag sealing structure according to claim 3, wherein: the first base material and the second base material are provided with at least one connecting part.
5. An air bag sealing structure according to any one of claims 1 to 4, wherein: the air bag body is made of hot-melt materials.
6. The air bag sealing structure according to claim 1, wherein: after the air bag body is inflated, the air bag body at the middle section air passage is sealed by hot melting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123175069.2U CN217515786U (en) | 2021-12-17 | 2021-12-17 | Air bag sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123175069.2U CN217515786U (en) | 2021-12-17 | 2021-12-17 | Air bag sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217515786U true CN217515786U (en) | 2022-09-30 |
Family
ID=83367254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123175069.2U Active CN217515786U (en) | 2021-12-17 | 2021-12-17 | Air bag sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217515786U (en) |
-
2021
- 2021-12-17 CN CN202123175069.2U patent/CN217515786U/en active Active
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