CN219954334U - Inflation valve body structure of small air column - Google Patents
Inflation valve body structure of small air column Download PDFInfo
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- CN219954334U CN219954334U CN202321215438.2U CN202321215438U CN219954334U CN 219954334 U CN219954334 U CN 219954334U CN 202321215438 U CN202321215438 U CN 202321215438U CN 219954334 U CN219954334 U CN 219954334U
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- 239000012528 membrane Substances 0.000 claims abstract description 16
- 239000000853 adhesive Substances 0.000 claims description 2
- 210000004027 cell Anatomy 0.000 claims 6
- 210000000170 cell membrane Anatomy 0.000 claims 4
- 238000004806 packaging method and process Methods 0.000 description 23
- 238000007789 sealing Methods 0.000 description 21
- 230000000694 effects Effects 0.000 description 6
- 238000003475 lamination Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000007788 roughening Methods 0.000 description 5
- 238000003855 Adhesive Lamination Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012858 packaging process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model provides an inflation valve body structure of a small air column, which is characterized by comprising the following components: a first air chamber membrane and a second air chamber membrane; a first air valve membrane and a second air valve membrane; at least two transverse heat seal lines and at least two longitudinal heat seal lines; and a guide heat seal line, wherein the at least two transverse heat seal lines and the at least two longitudinal heat seal lines are formed at the first air chamber film, the second air chamber film, the first air valve film and the second air valve film to form an inflatable air chamber, the guide heat seal line being formed at the first air chamber film, the first air valve film and the second air valve film such that the first air chamber film, the first air valve film and the second air valve film are located at the same side when inflated so as to increase a bonding area between the first air chamber film, the first air valve film and the second air valve film.
Description
Technical Field
The utility model relates to the technical field of packaging, in particular to an inflation valve body structure of a small air column.
Background
Air bags are currently in the field of logistics transportation as a common solution for cushioning packaging items. The air bag can carry out the air-packing to it in the packaging process, compares under the same space's of plastic foam condition when transporting buffer packaging bag, and the air bag is transported more. On the other hand, the air packaging bag adopts an air valve film to lock the air filled in the air chamber of the air packaging bag. Thereby forming a relatively closed column of air providing cushioning packaging. The mode of forming the air column buffer package by utilizing the air locking mode is increasingly popular in the market.
The traditional air packaging bag inflation valve body structure is provided with a plurality of heat sealing points or heat sealing lines at the air valve film, so that the air packaging bag inflation valve body structure not only can achieve the effect of gas diversion, but also can achieve the effect of preventing backflow after gas enters the air chamber, but finds out in the actual production and inflation packaging process that the air packaging bag with smaller air chamber width is in the state of poor tension fit between the air valve film of the small air column and the air chamber film forming the air column after the small air column is inflated, so that the conditions of air leakage and gas escape are easy to occur, the speed of gas escape can be increased along with extrusion or collision in the transportation process, the gas in the small air column is smaller, the air pressure is smaller, and the buffering effect on packaged objects is poor and the buffering effect is not achieved. In the air packaging bag with small air column width less than 20mm, as shown in fig. 1A to 1B of the drawings, the air inflation valve body structure in the prior art adopts a structure that a plurality of heat sealing points or heat sealing lines are arranged at the tail end of an air valve film. That is, since there are many heat-seal points or heat-seal lines formed at a plurality of heat-seal positions 1, the heat-seal positions 1 divide the bonding area between the air valve film and the air chamber film into a plurality of bonded portions 2. In the air packaging bag with the small air column width smaller than 20mm, the lamination part 2 of the multi-section can enlarge the tension difference between the air valve film and the air chamber film, the air valve film is not tightly adhered to the air chamber, and the two layers of air valve films are easily separated in a larger proportion, so that air escapes from between the two layers of air valve films.
Therefore, in the buffer packaging of the air packaging bag of the small air column, the air closing or locking structure at the air charging valve formed by the air valve film and the air chamber film is particularly important, and in the actual transportation process, the phenomenon that the conventional air packaging bag does not leak to the destination yet or the packaged article collides or damages after reaching the destination often occurs. Therefore, the air valve body structure of the small air column is improved to prevent the air from escaping, so that the air valve film and the air chamber film are tightly attached. In addition, because the gas column of the small gas column is smaller, the quick inflation is particularly important, and the existing inflation mode is not easy to open in the inflation process, so that the inflation efficiency is affected, the problem of quick inflation is solved, and the problem of quick opening of the two layers of gas valve films is also required.
Disclosure of Invention
The utility model has the main advantages that the air charging valve body structure of the small air column is provided, wherein the air charging valve body structure is provided with the guide heat sealing line, which is favorable for guiding the close fit between the air valve film and the air chamber film, and the length difference caused by the tension difference between the air valve film and the air chamber film is made up to the maximum extent, so that the escape of air from the space between the two air valve films is stopped.
Another advantage of the present utility model is to provide an inflation valve body structure of a small air column, wherein the inflation valve body structure has a self-adhesive bonding area, which is beneficial to increasing the bonding area between the air valve film and the air chamber film, thereby improving the bonding tightness between the air valve film and the air chamber film.
Another advantage of the present utility model is to provide an inflation valve body structure of a small air column, wherein the inflation valve body structure has a heat sealing block, which is beneficial to the escape of the cut-off air from between two layers of air valve films, and increases the tight fit between the air valve films and the air chamber films.
The utility model further provides an inflation valve body structure of the small air column, wherein the air valve film of the inflation valve body structure is subjected to geometric roughening treatment, so that two layers of air valve films are easier to open in the inflation process, and the inflation efficiency is improved.
In accordance with one aspect of the present utility model, an inflation valve body structure of a small air column of the present utility model capable of achieving the foregoing and other objects and advantages includes:
a first air chamber membrane and a second air chamber membrane;
a first air valve membrane and a second air valve membrane;
at least two transverse heat seal lines and at least two longitudinal heat seal lines; and
and a guide heat seal line, wherein the at least two transverse heat seal lines and the at least two longitudinal heat seal lines are formed at the first air cell film, the second air cell film, the first air valve film and the second air valve film to form an inflatable air cell, the guide heat seal line being formed at the first air cell film, the first air valve film and the second air valve film such that the first air cell film, the first air valve film and the second air valve film are located at the same side when inflated so as to increase a bonding area between the first air cell film, the first air valve film and the second air valve film.
According to one embodiment of the utility model, in the inflation valve body structure of the small air column, the inflation valve body structure is provided with the heat sealing blocks, so that the bonding tightness between the air valve film and the air chamber film is improved, and the air is prevented from escaping from the space between the two air valve films.
According to one embodiment of the utility model, the heat sealing block, the guide heat sealing line, the first air chamber film, the first air valve film and the second air valve film are heat sealed to form a self-adhesive laminating area, so that the laminating area is increased.
According to one embodiment of the utility model, the first valve film and/or the second valve film has a roughened surface structure.
According to one embodiment of the utility model, the first valve film and/or the second valve film has a honeycomb hexagonal roughened surface structure.
According to one embodiment of the utility model, the width of the air chamber of the small air column inflatable packaging bag where the inflation valve body structure is located is smaller than 20mm, namely, the width of the inflation valve body structure is smaller than 20mm, and the spacing between the guide heat seal lines is larger than or equal to 8mm.
Further objects and advantages of the present utility model will become fully apparent from the following description and the accompanying drawings.
These and other objects, features and advantages of the present utility model will become more fully apparent from the following detailed description and accompanying drawings.
Drawings
FIG. 1A is a plan view of a prior art inflation valve assembly.
FIG. 1B is a cross-sectional view of a prior art inflation valve body structure.
Fig. 2 is a plan view of an inflation valve body structure of a small air column according to a first preferred embodiment of the present utility model.
Fig. 3 is a sectional view of the structure of the inflation valve body of the small air column according to the above first preferred embodiment of the present utility model.
Fig. 4 is a schematic view of the structure of the small column of air inflation valve according to the first preferred embodiment of the present utility model.
Fig. 5 is a schematic view showing roughening treatment of the inflation channel of the inflation valve body structure of the small air column according to the first preferred embodiment of the present utility model.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
Referring to fig. 2 to 5 of the drawings, an inflation valve assembly 100 for a small air column according to a first preferred embodiment of the present utility model is illustrated in the following description. The inflation valve structure 100 is disposed in the air-filled packaging bag 10, and is a key structure for filling the air-filled packaging bag 10 with external air and locking the air flowing out of the air-filled packaging bag 10. Specifically, the inflation valve structure 100 is a key structure for providing an inflation channel for rapidly inflating the air in the air chamber 20 of the air-filled packaging bag 10, and can lock the air in the air chamber 20 of the air-filled packaging bag 10, so that the air in the air chamber 20 cannot escape, thereby forming a relatively closed air chamber buffer space, and the air buffer in the air chamber 20 provides a packaging buffer effect, wherein the air chamber 20 is formed by heat-sealing at least two longitudinal heat-seal lines 21 and at least two transverse heat-seal lines 22, and the air chamber 20 forms an air column of the relatively closed air buffer space after being inflated with the air due to the inflation valve structure 100, so as to provide packaging buffer.
The inflation valve body structure 100 is formed by heat-sealing the first air valve film 30, the second air valve film 40, the first air chamber film 50, and the second air chamber film 60 through the longitudinal heat-seal line 21 and the transverse heat-seal line 22 to form the air chamber 20. Wherein the first air valve film 30, the second air valve film 40 and the first air chamber film 50 are heat-sealed and bonded to one side through the transverse heat-seal line 22 and the longitudinal heat-seal line 21 forming the air chamber 20, and the first air valve film 30, the second air valve film 40 and the first air chamber film 50 in the air chamber 20 are heat-sealed and bonded also through some heat-seal lines and heat-seal blocks. The inflation valve body structure 100 having a cutoff function is formed.
It is worth mentioning that the second air chamber film 60 and the second air valve film 40 are heat-sealed and connected by the transverse heat-sealing line 22 and the longitudinal heat-sealing line 21 which form the air chamber 20. And the second air cell film 60 in the air cell 20 is heat-sealed with the second air valve film 40 because it is heat-sealed only by the transverse heat-seal line 22 and the longitudinal heat-seal line 21. When the gas is filled into the gas chamber 20, as the gas in the gas chamber 20 increases, the second gas chamber film 60 is separated from the first gas chamber film 30, the second gas chamber film 40 and the first gas chamber film 50 in the gas chamber 20 because the first gas chamber film 30, the second gas chamber film 40 and the first gas chamber film 50 in the gas chamber 20 are heat-sealed and bonded together, and the gas cannot escape from the gas chamber 20 because the second gas chamber film 60 in the gas chamber 20 is heat-sealed and blocked with the transverse heat seal line 22 and the longitudinal heat seal line 21 of the second gas chamber film 40. That is, a relatively closed column buffer structure is formed, so that the inflation valve body structure 100 achieves the effect of closing and locking the air.
However, when the width of the air column in the inflatable packaging bag in the prior art is smaller than 20mm, because of the tension difference between the air valve film and the air chamber film, the air valve film is not tightly attached to the container, and the two air valve films are easily separated in a larger proportion, so that air escapes from between the two air valve films.
In the present application, the inflation valve body structure 100 has a guiding heat-seal line, wherein the guiding heat-seal line further includes a first guiding heat-seal line 110 and a second guiding heat-seal line 120, so that no heat-seal line or heat-seal point exists between the first guiding heat-seal line 110 and the second guiding heat-seal line 120, and therefore, the bonding area of the second air valve film 40 and the first air chamber film 50 is increased, the bonding area of the first air valve film 30 and the second air valve film 40 is also increased, and the difference between the tension between the first air valve film 30 and the second air valve film 40 and the difference between the tension between the first air valve film 30 and the first air chamber film 50 can be compensated to the greatest extent, so that the first air valve film 30, the second air valve film 40 and the first air chamber film 50 are tightly bonded, and the cut-off air escapes from between the first air valve film 30 and the second air valve film 40.
It is worth mentioning that the wider the width H between the first and second guide heat-seal lines 110 and 120, i.e., the shorter the heat-seal line length of the first and second guide heat-seal lines 110 and 120, the better. Because the length of the heat seal line between the first guiding heat seal line 110 and the second guiding heat seal line 120 is too long, the bonding area of the first air valve film 30, the second air valve film 40 and the first air chamber film 50 is reduced, and the escape of air from between the first air valve film 30 and the second air valve film 40 is further affected. In practical products and experiments, H is more than or equal to 8mm, which is the best implementation mode of the effect. And the width of the air cells 20 in the air-packing bag 10 of the present utility model is smaller than 20mm. That is, the range of the width H between the first guide heat seal line 110 and the second guide heat seal line 120 is 8 mm.ltoreq.H <20mm is the most preferred embodiment. Because the width of the inflation valve body structure 100 and the width of the air chamber 20 are uniform. It can also be said that the width of the inflation valve body structure 100 in the air-packing bag 10 of the present utility model is less than 20mm. That is, the range of the width H between the first guide heat seal line 110 and the second guide heat seal line 120 is 8 mm.ltoreq.H <20mm is the most preferred embodiment.
Further, the method comprises the following steps. The inflation valve body structure 100 further comprises a heat sealing block 130, the heat sealing block 130 is used for heat sealing the first air valve film 30, the second air valve film 40 and the first air chamber film 50 together, wherein the heat sealing block 130 plays roles of air inlet diversion and air locking, when air passes through the inflation valve body structure 100 and is inflated into the air chamber 20, air in the air chamber 20 can apply air pressure on the first air valve film 30, the second air valve film 40 and the first air chamber film 50, and due to the block square structure of the heat sealing block 130, the attaching effect of the first air valve film 30, the second air valve film 40 and the first air chamber film 50 is better, and air is prevented from escaping from the first air valve film 30 and the second air valve film 40.
The heat seal block 130, the first guiding heat seal line 110 and the second guiding heat seal line 120 in the inflation valve body structure 100 form a self-adhesive lamination area 140, the self-adhesive lamination area 140 is the lamination area of the first air valve film 30, the second air valve film 40 and the first air chamber film 50, and the lamination area of the self-adhesive lamination area 140 is larger, the lamination of the first air valve film 30 and the second air valve film 40 and the lamination of the second air valve film 40 and the first air chamber film 50 under a small air column is tighter. Thereby preventing gas from escaping from the first and second gas valve films 30 and 40.
It should be noted that the width H between the first guiding heat-seal line 110 and the second guiding heat-seal line 120 is in the range of 8mm < H <20, and is also used to increase the bonding area of the self-adhesive bonding area 140.
Because the width of the air chamber 20 of the small air column is small, and at the same time, it is necessary to increase the air-filling efficiency of the small air column, the first air valve film 30, the second air valve film 40, the first air chamber film 50, the second air chamber film 60, and the heat-seal line heat-seal are performed in an equal order, that is, the first air valve film 30, the second air valve film 40, the first air chamber film 50, the second air chamber film 60, and the two air chamber films and the two air valve films together form the air-filling channel 23, specifically, the air-filling channel 23 is formed by the first air valve film 30 and the second air valve film 40. And the first air valve film 30, the second air valve film 40, the first air chamber film 50 and the second air chamber film 60 are heat sealed by the transverse heat sealing line 22 and the longitudinal heat sealing line 21, the inflation valve body structure 100 is divided into an air inlet structure and an air locking structure, and the first air valve film 30 and the second air valve film 40 of the air inlet structure part are subjected to roughening treatment of geometric shapes and are treated in a mode of taking the honeycomb geometric shapes as optimal roughening, so that two layers of air valve films are easier to open, and the inflation efficiency is improved. The air filling efficiency of the small air column is particularly important.
It should be noted that, in the process of inflation, whether the first air valve film 30 and the second air valve film 40 are inflated by a person or by an inflation device, the inflation port of the inflation channel 23 is easier to open, and after the inflation is performed, the first air valve film 30 and the second air valve film 40 are easier to actively pull the inflation channel 23, and heat sealing points between the first air valve film 30 and the first air chamber film 50 and between the second air valve film 40 and the second air chamber film 60 are not needed to be heat sealed to pull the first air valve film 30 and the second air valve film 40, which are processed by the roughening of the geometry, so that the air is more easily and smoothly introduced, and the inflation channel 23 is instantly depressurized, thereby improving the inflation efficiency of the air filled into the air chamber 20.
In addition, the two layers of air chamber films and the two layers of air valve films are overlapped and heat-sealed at the position of the air inflation channel 23, so that the tension of the air inflation channel 23 is increased, and the air inflation channel 23 is not broken due to the overlapping and lamination of the two layers of air chamber films and the two layers of air valve films under the conditions that the air chamber films are made of few materials, the air chamber films are thin and the air inflation pressure is overlarge, so that the air inflation efficiency is improved.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.
Claims (8)
1. An inflation valve body structure of a small air column, comprising:
a first air chamber membrane and a second air chamber membrane;
a first air valve membrane and a second air valve membrane;
at least two transverse heat seal lines and at least two longitudinal heat seal lines; and
and a guide heat seal line, wherein the at least two transverse heat seal lines and the at least two longitudinal heat seal lines are formed at the first air cell film, the second air cell film, the first air valve film and the second air valve film to form an inflatable air cell, the guide heat seal line being formed at the first air cell film, the first air valve film and the second air valve film such that the first air cell film, the first air valve film and the second air valve film are located at the same side when inflated so as to increase a bonding area between the first air cell film, the first air valve film and the second air valve film.
2. The inflation valve body structure of claim 1, wherein the inflation valve body structure further comprises a heat seal block, wherein the heat seal block is formed between the first air cell membrane, the first air valve membrane, and the second air valve membrane to increase the tightness of fit between the first air cell membrane, the first air valve membrane, and the second air valve membrane.
3. The inflation valve assembly of claim 2, wherein the heat seal block, the guide heat seal line, and the first air cell membrane, and the second air cell membrane are heat sealed to form a self-adhesive attachment zone.
4. The inflation valve body structure of claim 1, wherein the first and/or second valve films have a roughened surface structure.
5. The inflation valve body structure of claim 4, wherein the first and/or second valve films have a honeycomb hexagonal roughened surface structure.
6. The inflation valve structure of claim 1, wherein the inflation valve structure width is less than 20mm.
7. The inflation valve assembly of claim 6, wherein the guided heat seal line further comprises a first guided heat seal line and a second guided heat seal line, wherein a width H between the first guided heat seal line and the second guided heat seal line is greater than or equal to 8mm.
8. The inflation valve body structure of claim 7, wherein a width between the first and second leading heat seal lines is 8mm +.h <20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321215438.2U CN219954334U (en) | 2023-05-16 | 2023-05-16 | Inflation valve body structure of small air column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321215438.2U CN219954334U (en) | 2023-05-16 | 2023-05-16 | Inflation valve body structure of small air column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219954334U true CN219954334U (en) | 2023-11-03 |
Family
ID=88545051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321215438.2U Active CN219954334U (en) | 2023-05-16 | 2023-05-16 | Inflation valve body structure of small air column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219954334U (en) |
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2023
- 2023-05-16 CN CN202321215438.2U patent/CN219954334U/en active Active
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