TWI609824B - Air packaging device and inflation valve thereof and manufacturing method - Google Patents

Description

Air packaging device and inflation valve thereof and manufacturing method

This invention relates to packaging materials, and more particularly to an improved inflation valve for an air-packing device.

Inflatable air-packing device, because it is filled with air inside, so it has strong cushioning performance, and it can be inflated during transportation, so it takes up little space. When used, it can be inflated and then packaged to be packaged, thus reducing transportation and storage. Cost, so this air-packing device has been widely welcomed in the market.

1 to 2 illustrate the structure of a conventional air-packing device comprising two outer films 1A and 1B heat-sealed together, and two shorter inner films 2A and 2B, of which two inner films 2A and 2B A plurality of inflation passages 2C are formed between each other and can be automatically sealed after the inflation is completed, and the air-packaging device is formed into a plurality of plenums 1C after being heat-sealed with the two outer films 1A and 1B. The two outer films 1A and 1B are then bent over a series of heat seals to form the inflatable structure into a variety of desired shapes for receiving the packaged article or as a filling material to provide an air cushioning effect to the packaged article.

In this prior art, the inflation valve is formed by two inner membranes 2A and 2B, as shown in Fig. 2, at the inlet end, the inner membrane 2A and the outer membrane 1A are heat-sealed together, the inner membrane 2B and the outer membrane 1B. Heat sealed together, and the two inner membranes 2A and 2B are not heat-sealed together due to the provision of the heat-resistant barrier means to form the inflation passage 2C. When inflated, when inflated, air reaches the inflation passage 2C from the main air passage 1D, and enters the corresponding plenum 1C from the inflation passage 2C, when the air in the plenum 1C reaches a predetermined pressure At this time, the air in the air chamber 1C presses the two inner films 2A and 2B to the outer film 1A so that the two inner films 2A and 2B are attached to the same outer film 1C to achieve a self-sealing effect to prevent the plenum 1C. The air in the air leaks outward.

However, the existing structure of the inflation valve has a gas leakage hazard. Specifically, at the intake end, the inner membrane 2B and the outer membrane 1B are connected by heat sealing, and the heat fusion bonding method causes the inner membrane 2B and The outer film 1B is hardened and embrittled at the heat-sealed position, so that the inner film 2B and the outer film 1B are fragilely connected, and when the plenum 1C has a large air pressure, the air may enter the inner film. The joint between 2B and the outer membrane 1B is opened to leak outward from between the inner membrane 2B and the outer membrane 1B, that is, there is a risk of tearing of the inner membrane 2B and the outer membrane 1B to the heat seal, thereby causing the whole The air-packing device cannot hold pressure and loses air cushioning performance.

That is, in the above-described inflation valve structure, since the air pressure acts on the inner membrane 2B, the three-layer film, that is, 1A, 2A, and 2B are closely attached, so that air is not easily separated from the two inner membranes 2A and 2B. Between, and between the inner membrane 2A and the outer membrane 1A leaked outward. However, the air between the inner film 2B and the outer film 1B is liable to leak due to the breakage of the heat fusion, so that the entire air-packing device is scrapped and cannot be used.

The main object of the present invention is to provide an air-packing device and an inflation valve thereof, wherein the air-packing device comprises a two-layer plenum membrane and an inflation valve, the inflation valve comprising a two-layer valve membrane forming an intake passage, and an additional A layer of reinforcing film disposed between the layer of the valve film and the layer of the chamber film prevents the inflation valve and the chamber film from being torn.

Another object of the present invention is to provide an air-packing device and an inflation valve thereof, wherein at the end of inflation, two upper and lower valve films are attached to the lower air chamber membrane to prevent air leakage. Wherein the reinforcing film is disposed between the upper air chamber film and the upper valve film to prevent the connection between the upper air chamber film and the upper valve film from being broken to generate air leakage.

Another object of the present invention is to provide an air-packing device and an inflation valve thereof, wherein the added reinforcing film increases the connection strength between the upper air chamber film and the upper valve film, thereby filling the air in the air-filling unit When air enters between the upper plenum membrane and the reinforced membrane or between the reinforced membrane and the upper valve membrane, since the reinforced membrane has heat-sealed films on both sides thereof, The joint between the reinforcing film and the two films is not easily broken.

Another object of the present invention is to provide an air-packing device and an inflation valve thereof, wherein the distal end portion of the reinforcing film is heat-sealed with the upper valve film, such that at the end of inflation, the reinforcing film follows two The layer of the valve film is attached to the lower plenum membrane to achieve one-way inflation and self-sealing properties.

Another object of the present invention is to provide an air-packing device and an inflation valve thereof, wherein the reinforcing film is shorter than the upper valve film and forms a reinforcing passage with the upper valve film, so that even if the air is reverse osmosis, Entering the reinforcing passage between the upper valve membrane and the reinforcing membrane, thereby further pressing the upper valve membrane to fit the lower valve membrane, thereby further acting on the upper and lower valves The sealing action of the inlet passage between the membranes.

Another object of the present invention is to provide an air-packing device and an inflation valve thereof, wherein the reinforcing film further extends outwardly adjacent to a proximal end portion of the inlet of the intake passage, and can be formed with the lower plenum membrane The gas main passage, such that the upper gas chamber membrane does not need to extend to be flush with the lower gas chamber membrane, so that the material of the upper gas chamber membrane can be saved, thereby saving cost.

Another object of the present invention is to provide an air packaging device and its inflation a valve in which a diaphragm formed in the prior art forming an inflation valve is disposed between two outer membranes to form an inner membrane completely differently, and the reinforcing membrane of the present invention is not completely disposed within the gas chamber membrane Rather, it can act as a film that is exposed to the outside, so that the present invention provides a completely different air valve and air packaging structure.

Another object of the present invention is to provide an air-packing device and an inflation valve thereof, wherein the air-packing device is suitable as an air cushioning material to provide a cushioning effect on an article supported thereby or to be filled into other packaging devices such as a package or The air-packing device of the present invention is widely used in the package to provide cushioning protection for the packaged article, or the air-packing device is adapted to directly store the packaged article to provide a cushioning effect around the packaged article.

Another object of the present invention is to provide an air-packing device and an inflation valve thereof, wherein the air-packing device and the inflation valve are simple in structure and manufacturing process, low in cost and environmentally friendly, and are suitable for wide application in modern logistics packaging.

In order to achieve the above object, the present invention provides an air-packing device comprising: an inflatable body including an upper plenum film and a lower plenum film superposed on each other to form at least one inflatable unit, each of the inflatable units Having a plenum; and an inflation valve including an upper valve membrane, a lower valve membrane and a reinforced membrane, wherein the upper valve membrane, the lower valve membrane and the reinforced membrane are attached to the upper membrane The plenum membrane and the lower plenum membrane are connected via a series of heat seals to form at least one intake passage between the upper and lower diaphragms, the intake passage for inflating the plenum, wherein after the inflation is completed The upper valve membrane and the lower valve membrane are attached to the lower plenum membrane to close the intake passage to achieve a self-sealing function, and the reinforced membrane is disposed on the upper valve membrane and the upper Between the gas chamber membranes to reinforce the upper valve membrane and the upper gas chamber membrane The strength of the connection between them prevents the upper valve membrane from being torn, thereby further preventing air leakage.

Preferably, the upper plenum membrane is heat sealed with a proximal end portion of the upper valve membrane adjacent to an intake port of the intake passage and a proximal end portion of the reinforced membrane, the lower plenum membrane A proximal end portion of the lower valve membrane adjacent to the intake port of the intake passage is heat sealed.

Preferably, at least one of the two layers of the valve film is provided with a heat-resistant barrier on the inner surface of the valve film, and the heat-resistant barrier is disposed between the two layers of the valve film, so that in the heat sealing process, The intake passage is formed between the two layers of the valve membrane.

Preferably, further comprising one or more gas barriers that heat seal the distal ends of the upper and lower valve membranes, the gas barriers preventing air in the plenum from being reverse osmosis from the intake passage.

Preferably, the gas barrier further heat-connects the upper and lower valve membranes and the reinforcing membrane to the lower air chamber membrane, so that the upper and lower valve membranes and the reinforcing membrane are attached after the inflation is completed. The lower plenum membrane is used to close the intake passage.

Preferably, the two layers of the plenum film are two separate films or are formed by folding one sheet of film.

Preferably, the air-packing device further forms a plurality of the inflation units through one or more separation slits, and at least one of the intake passages is formed in each of the inflation units.

Preferably, the apparatus, wherein the plenum membrane and the valve membrane and the reinforced membrane are flexible films selected from the group consisting of polyethylene films, polypropylene films, polyvinyl chloride films, polyester films, polystyrene films, and One or more of the composite films.

Preferably, the air-packing device is further formed with a main passage communicating with the intake passage, and when inflated, air enters the main passage and is then distributed into the plenum of each of the inflatable units.

Preferably, the main passage is formed between the upper and lower plenum membranes.

Preferably, the main passage is formed between the upper and lower valve membranes.

Preferably, the main passage is formed between the reinforcing film and the lower valve film.

Preferably, the upper and lower valve membranes further comprise an outer extension extending adjacent a proximal end of the air inlet, the main passage being formed between the outer extensions, the upper and lower air chamber membranes not It is necessary to extend to the position of the outer extension of the upper and lower valve membranes.

Preferably, the lower valve membrane further includes an outer extension extending adjacent a proximal end of the inlet, the reinforced membrane including a reinforced extension extending proximally of the inlet adjacent the inlet a segment wherein the main passage is formed between the outer extension of the lower valve membrane and the reinforcing extension of the reinforced membrane, the upper plenum membrane not extending to the reinforced membrane The position of the reinforcing extension is described.

Preferably, the distal end portion of the reinforcing membrane is not aligned with the distal end portion of the upper valve membrane and forms a reinforcing passage between the reinforcing membrane and the upper valve membrane and between the upper valve membrane, thereby The sealing effect on the intake passage between the upper and lower valve membranes after the end of inflation is further enhanced.

Preferably, the air-packing device forms an inflatable cushion.

Preferably, the air-packing device is formed into an air-packing bag having a receiving cavity after a series of heat sealing and bending.

According to another aspect of the present invention, there is provided an inflation valve adapted to inflate an air-packing device, the air-packing device comprising an inflatable body comprising a two-layer plenum film superposed on each other to form At least one inflating unit, each of the inflating units having an inflating chamber, wherein the inflating valve comprises two layers of valve membranes and one layer of reinforcing membrane, two layers The valve membrane and the reinforcing membrane and the two-layer plenum membrane are passed through a series of heat seals to form at least one inlet passage for inflating the plenum between the two layers of the valve membrane, and After the inflation is completed, the two layers of the valve film are attached to one of the plenum membranes to close the inlet passage, and the reinforced membrane is disposed between the other plenum membrane and a layer of the valve membrane.

Preferably, the two layers of the gas chamber membrane comprise an upper gas chamber membrane and a lower gas chamber membrane, and the two layers of the valve membrane comprise an upper valve membrane and a lower valve membrane, wherein the upper gas chamber membrane is adjacent to the inlet membrane a proximal end portion of the upper valve membrane of the air inlet of the air passage and a proximal end portion of the reinforcing film, the lower air chamber membrane and the air inlet adjacent to the intake passage a proximal end portion of the lower valve membrane is heat sealed together, and the reinforcing membrane is disposed between the upper valve membrane and the upper plenum membrane to enhance the upper valve membrane and the upper plenum membrane The strength of the connection therebetween prevents the upper valve film from being torn.

Preferably, at least one of the inner surfaces of the valve film of the two layers of the valve film is provided with a heat resistant barrier, and the heat resistant barrier is placed between the two layers of the valve film, thereby making the heat sealing process The inlet passage is formed between the two layers of the valve membrane of the two layers of the valve membrane.

Preferably, the method further includes one or more gas barriers that heat seal the upper and lower valve membranes, the gas barriers preventing air in the plenum from being reverse osmosis from the intake passage.

Preferably, the gas barrier further heat-connects the upper and lower valve membranes and the reinforcing membrane to the lower air chamber membrane, so that the upper and lower valve membranes and the reinforcing membrane are attached after the inflation is completed. The lower plenum membrane is used to close the intake passage.

Preferably, the distal end portion of the reinforcing membrane is not aligned with the distal end portion of the upper valve membrane and forms a reinforcing passage between the reinforcing membrane and the upper valve membrane, thereby further enhancing the alignment after the inflation is completed. The sealing action of the intake passage between the upper and lower diaphragms is described.

Preferably, the upper and lower valve membranes and the reinforcing membrane are flexible membranes selected from the group consisting of One or more of a vinyl film, a polypropylene film, a polyvinyl chloride film, a polyester film, a polystyrene film, and a composite film.

The air-packing device of the present invention comprises the following steps: (a) laminating five layers of films on each other, wherein the first film and the fifth film form an upper air chamber film and a lower air chamber film, a third film and a fourth film, the upper valve film and the lower valve film, the second film forms a reinforcing film, and a heat resistant barrier is placed between the upper valve film and the lower valve film; and (b) Forming the five-layer film into an inflatable body having one or more inflatable and gas-storing units by a heat sealing step, wherein the upper chamber film and the reinforcing film are as described by a sealing slit a proximal end portion of the upper valve membrane is heat sealed together, and the lower plenum membrane and the proximal end portion of the lower valve membrane are heat sealed together to form the intake passage between the upper and lower valve membranes And when a predetermined air pressure is reached in the plenum of the inflator unit, the upper and lower valve membranes are attached to the lower air chamber valve membrane to close the intake passage, and the reinforcing film reinforces the upper air chamber membrane and The strength of the connection between the upper valve membranes prevents the upper valve membrane from being torn.

Preferably, the upper and lower plenum films are arranged to overlap each other and a main passage for inflating each of the intake passages is formed between the upper and lower plenum membranes.

Preferably, the outer extension of the upper and lower valve membranes extends to the outside of the upper and lower plenum membranes, and the outer extensions of the upper and lower valve membranes are arranged superposed on each other to form for each of the intake passages Inflated main channel.

Preferably, the reinforcing extension of the reinforcing film is superposed with the lower plenum film to form a main passage for inflating each of the intake passages.

Preferably, the reinforcing extension of the reinforcing film and the outer extension of the lower valve film The stacks are superposed to form a main passage for inflating each of the intake passages.

Preferably, the manufacturing method further includes the steps of: heat sealing the five-layer film by a plurality of columns of spaced apart slits to form a plurality of the inflatable units, and forming at least one of the inflating units Air passage.

Preferably, the manufacturing method further comprises the steps of: heat sealing the two layers of the gas chamber film by heat sealing of one or more columns of bending slits, and forming each of the gas cells to be interconnected and connected to each other. A plurality of sub-inflating units are thereby bent along the bend slit such that the inflatable body forms a plurality of inflatable sidewalls that define a receiving cavity for receiving a packaged article.

Preferably, the manufacturing method further includes the steps of: retracting a distal end portion of the reinforcing membrane with respect to a distal end portion of the upper valve membrane and forming between the reinforcing membrane and the upper valve membrane The passage is reinforced to further enhance the sealing action of the intake passage between the upper and lower diaphragms after the end of inflation.

11‧‧‧Upper air chamber membrane

12‧‧‧ lower air chamber membrane

13‧‧‧Inflatable unit

14‧‧‧Inflatable room

15‧‧‧Main channel

21‧‧‧Upper diaphragm

211‧‧‧ Near end

212‧‧‧ distal end

22‧‧‧ lower diaphragm

221‧‧‧ Near end

222‧‧‧ distal end

231‧‧‧ Near end

232‧‧‧ distal end

24‧‧‧Intake passage

241‧‧‧air inlet

32‧‧‧ Sealing seam

33‧‧‧ gas barrier

38‧‧‧ joint seam

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a partial schematic view showing the structure of a prior art air-packing device.

2 is a schematic cross-sectional view of an inflation valve of a prior art air-packing device.

3 is a schematic structural view of an air-packing device in accordance with a preferred embodiment of the present invention.

Fig. 4A is a schematic cross-sectional view taken along line A-A of Fig. 3 of the inflation valve of the air-packing device according to the above preferred embodiment of the present invention.

Fig. 4B is a schematic cross-sectional view taken along line B-B of Fig. 3 of the inflation valve of the air-packing device according to the above preferred embodiment of the present invention.

4C is a schematic cross-sectional view showing another modified embodiment of the inflation valve of the air-packing device according to the above preferred embodiment of the present invention.

Fig. 5 is a partially enlarged schematic cross-sectional view showing a portion of Fig. 4B of the inflation valve of the air-packing device according to the above preferred embodiment of the present invention.

Figure 6 is a schematic view showing the structure of an air-packing device according to the above preferred embodiment of the present invention when inflated.

Figure 7 is a schematic view showing the structure of the air-packing device according to the above preferred embodiment of the present invention after inflation.

Figure 8 is a perspective view showing the structure of an air-packing device in accordance with another preferred embodiment of the present invention.

Figure 9 is a schematic exploded view of an air-packing device in accordance with another preferred embodiment of the present invention.

Figure 10 is a cross-sectional view, taken along line C-C of Figure 9, of a modified embodiment of the inflation valve of the air-packing device in accordance with the above-described preferred embodiment of the present invention.

Figure 11 is a schematic cross-sectional view showing another modified embodiment of the inflation valve of the air-packing device according to the above preferred embodiment of the present invention.

Figure 12 is a schematic cross-sectional view showing another modified embodiment of the inflation valve of the air-packing device according to the above preferred embodiment of the present invention.

The following description is presented to disclose the invention to enable those skilled in the art to practice the invention. 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 invention defined in the following description can be applied to Other embodiments of the invention, the modifications, the improvements, the equivalents, and other technical solutions without departing from the spirit and scope of the invention.

3 to 7 show an air-packing device according to a preferred embodiment of the present invention having an inflatable structure to be used for various packaged articles such as electronic products, foods, medical products, chemical raw materials, and organisms after inflation. Materials, plastic ceramics, fast-moving consumer goods, etc. provide air cushioning effect, and when not in use, they can be stored and transported without being inflated, and then inflated on site during use, which is very convenient to use.

In this preferred embodiment of the invention, the air-packing device may be embodied as an air cushioning material that, upon inflation, may form an inflatable cushion as shown in Figure 7 to provide an air cushioning effect to its support, or as The filling material is placed in other packaging devices such as cartons or boxes to provide an air cushioning effect on the packaged items.

In particular, the air-packing device comprises at least one inflatable body 10 comprising two layers of plenum membranes for forming at least one inflatable unit 13. The air-packing device further includes at least one inflation valve 20 for inflating the inflation unit 13. For convenience of description, one of the two layers of the gas chamber film is defined as the upper chamber film 11, and the other layer is defined as the lower chamber film 12. It should be understood by those skilled in the art that the upper and lower positional relationship of the upper and lower air chamber films 11 and 12 is opposite. In practical applications, the upper air chamber film 11 may be located below the lower air chamber film 12. The lower plenum film 12 may be located above the upper plenum film 11.

The gasification unit 13 is mainly formed by heat sealing of two gas chamber films, that is, an upper gas chamber film 11 and a lower gas chamber film 12, and the upper gas chamber film 11 and the lower gas chamber film 12 may be two flexible films. , which can be made of various suitable film materials, such as polyethylene film, polypropylene film, polyvinyl chloride An ene film, a polyester film, a polystyrene film or a composite film. The invention is not limited in this respect as long as it is a suitable flexible film. The upper plenum membrane 11 and the lower plenum membrane 12 overlap each other and are heat sealed to form a plenum 14 for storing air of the plenum unit 13.

The inflation valve 20 is for inflating the inflation unit 13, that is, when inflated, a gas such as air enters the inflation chamber 14 in each of the inflation units 13 from the inflation valve 20, when the inflation chamber 14 The air pressure in the middle reaches the requirement and stops the inflation. Thus the air-packing device is inflated so that an air cushioning effect can be provided.

It is worth mentioning that, in this preferred embodiment of the invention, the inflation valve 20 is a one-way inflation valve, that is, when inflated, when the air pressure in the plenum 14 reaches a predetermined level, the plenum The air pressure in 14 causes the inflation valve 20 to be in a closed state, and can no longer continue to be inflated, and the air in the plenum 14 is also not easily leaked from the inflation valve 20.

More specifically, the inflation valve 20 includes two layers of valve membranes 21 and 22 and at least one layer of reinforcing membrane 23. Similarly, the two layers of valve membranes 21 and 22 are defined as an upper valve membrane 21 and a lower valve membrane 22, respectively, wherein it will be understood by those skilled in the art that the upper and lower positional relationship of the upper and lower valve membranes 21 and 22 is relative. In practical applications, the upper valve membrane 21 may also be located below the lower valve membrane 22, and the lower valve membrane 22 may also be located above the upper valve membrane 21.

Similarly, the upper valve membrane 21 and the lower valve membrane 22 and the reinforcing membrane 23 may be three layers of flexible film, which may be made of various suitable film materials, such as polyethylene film, polypropylene film, poly The present invention is not limited in this respect as the vinyl chloride film, the polyester film, the polystyrene film or the composite film, and the like, as long as it is a suitable flexible film.

According to this preferred embodiment of the invention, the upper valve membrane 21 and the lower valve membrane 22 are superposed on each other, and are appropriately aligned with the upper plenum membrane 11 and the lower plenum membrane 12 An inflatable structure is formed through a series of suitable heat seal seams 30 that are completed by a suitable heat sealing process to heat seal the two or more layers of film at the desired location.

The above five-layer film is heat-sealed to form an internal gas storage space, and forms a main passage 15 having an inflation port 151 into which the inflation nozzle 40 of the inflator enters the main passage from the inflation port 151. 15, whereby the inflatable body 10 is adapted to perform an inflation operation via the main passage 15.

More specifically, the upper valve membrane 21 and the lower valve membrane 22 are stacked and heat sealed to form at least one intake passage 24, and an intake port 241 for inflation is formed at the intake end, wherein The intake passage 24 is in communication with the main passage 15. When inflated, the user can inflate the air-packing device from the inflation port 151 by means of an inflator 40 such as an air pump, from which air enters the main passage 15 from the inflation port 151 and from the main passage 15 The intake passage 24 is entered via each of the intake ports 141 to inflate the inflator unit 13 such that each of the plenum chambers 14 is filled with a predetermined amount of air.

It is worth mentioning that the heat seal 30 may comprise a plurality of spaced apart slits 31 such that two or more inflatable units 13 are arranged side by side and connected to form the inflatable body 10, wherein the inflatable The valve 20 is formed with the intake passage 24 corresponding to each of the inflatable units 13. In other words, each of the inflating units 13 can be independently inflated, and an elongated slit 31 is formed between two adjacent inflating units 13 , which can be implemented between two adjacent inflating units 13 The lines are heat sealed so that a plurality of individual plenums 14 can be formed by these dividing slits 31. Thus, when one of the inflating units 13 is damaged and leaks, the other inflating units 13 can be unaffected. Of course, it is worth mentioning that the inflating units 13 can also communicate with each other such that only one of the intake passages 24 formed by the inflation valve 20 is required, and all of the inflating units 11 can be used. Inflated. That is, the air-packing device of the present invention can form a plurality of the inflating units 13 by heat sealing of the upper air chamber film 11 and the lower air chamber film 12.

In the preferred embodiment, the inflation valve 20 forms a plurality of the intake passages 24 corresponding to the plurality of the inflatable units 13, that is, the partitioning slits 31 are heat-sealed in the two-layer air chamber film 11 and At 12 o'clock, the two layers of valve films 21 and 22 and the reinforcing film 23 are also heat sealed together, thereby heat sealing the five layers of film together to form a plurality of the inlet passages 24 and a plurality of the plenums 14, each of which The intake passage 24 is adapted to inflate the corresponding plenum 14.

It is worth mentioning that a plurality of spaced apart slits 31 may be arranged at equal intervals to form a plurality of the inflatable units 13 having the same diameter of the gas chamber, and of course may be arranged at unequal intervals to form a gas chamber. A plurality of the inflatable units 13 having different diameters. The plurality of spaced apart slits 31 may be arranged in parallel with each other, or a predetermined number of the slits 31 may be arranged obliquely, or a turning or the like may be formed at a partial position, and the present invention is not limited in this respect. One of the intake passages 24 may be formed in each of the inflating units 13, and in the inflating unit 13 having a larger chamber diameter, two or more of the intake passages 24 may be formed by a heat sealing process. , thereby improving the efficiency of inflation.

In addition, since the shape of each of the inflatable units 13 can be varied after inflation, the inflatable body 10 can be made in various shapes and sizes. The inflating unit 13 may be in the form of a strip such as a lateral strip and/or a longitudinal strip or the like, or a block shape, the shape of which is not limited, and in this preferred embodiment, the inflating unit 13 may be formed in a strip shape.

In the present invention, the reinforcing film 23 is disposed between the upper air chamber film 11 and the upper valve film 21 to enhance the connection strength between the upper air chamber film 11 and the upper valve film 21. . More specifically, the upper valve membrane 21 has a proximal end portion 211 adjacent to the air inlet 241, and away from the inlet The distal end portion 212 of the port 241. The reinforcing film 23 has a proximal end portion 231 at a position adjacent to the air inlet 241 and a distal end portion 232 remote from the air inlet 241. The proximal end portion 211 of the upper valve membrane 21 and the proximal end portion 231 of the reinforcing membrane 23 are heat sealed with the upper air chamber membrane 11, so that at the proximal end portion of the inflation valve 20, The connection strength between the upper air chamber film 11 and the upper valve film 21 is reinforced by the arrangement of the reinforcing film 23.

That is, at the proximal end portion of the inflation valve 20, the three layers of films 11, 21 and 23 are heat sealed together, so that the upper plenum film 11 and the upper valve film 21 are not easily broken. The reinforcing film 23 is reinforced between the upper valve film 21 and the upper plenum film 11 by reinforcing a layer, thereby making the connection between the two more stable. On the other hand, the upper and lower sides of the proximal end portion 231 of the reinforcing film 23 are heat-sealed with the upper air chamber membrane 11 and the upper valve membrane 21, respectively, such that the reinforcing film 23 and the upper portion The connection between the gas chamber films 11 is stabilized and stabilized by the upper valve film 21 on the bottom side thereof, thereby preventing breakage between the reinforcing film 23 and the upper gas chamber film 11. The connection between the reinforcing film 23 and the upper valve film 21 is enhanced by the upper air chamber film 11 on the upper side thereof, thereby preventing the reinforcing film 23 and the upper valve film 21 from being A break occurs between them.

During the inflation operation, air enters the plenum 14 from the intake port 241 via the intake passage 24, and when the plenum 24 reaches a sufficiently large air pressure, the two layers of the valve membranes 21 and 22 The plenum film, such as the lower plenum film 12, is attached to one of the layers to enclose the intake passage 24 to prevent backflow of air from the intake passage 24. In the prior art, the joint between the inner membrane 2B and the outer membrane 1B may be brittle, and air in the air column may also leak outward through the inner membrane 2B and the outer membrane 1B, resulting in loss of air cushioning performance. Moreover, when tearing occurs at the junction of the inner membrane 2B and the outer membrane 1B, the tear at the junction of the inner membrane causes air in the air column to leak through the air inlet passage between the two inner membranes.

In the present invention, since the upper end portions 211 and 231 of the upper valve film 21 and the reinforcing film 23 are both heat-sealed with the upper plenum film 11, the joint strength is enhanced, thereby further ensuring The airtight performance of the air-packing device.

In addition, the distal end portion 232 of the reinforcing film 23 and the distal end portion 211 of the upper valve film 21 are heat-sealed together, so that when the inflation is completed, air pressure acts on the reinforcing film 23, thereby Referring to the reinforcing film 23, the upper and lower valve films 21 and 22 are pressed together toward the lower plenum film 12, thereby stacking the four layers of film together to close the intake passage 24 to prevent air leakage. Preferably, similar to the reinforcing membrane 23 and the upper valve membrane 21, the lower valve membrane 22 has a proximal end portion 221 and a distal end portion 222, the proximal end portion 221 of the upper valve membrane 22 and the lower gas The chamber membrane 12 is heat sealed together, and the distal end portion 222 of the lower valve membrane 22 is connected to the distal end portion 332 of the reinforcing membrane 23 and the distal end portion 212 of the upper valve membrane 21 by the same heat seal. The plenum membrane 12 is described so that the upper and lower valve membranes 21 and 22 of the inflation valve 20 and the reinforced membrane 23 can be directed toward the same plenum after inflation is completed, i.e. toward the preferred embodiment. The lower chamber membrane 12 is attached to achieve the lock gas sealing performance by virtue of its own structure.

According to this preferred embodiment of the invention, the reinforcing channel 25 is further preferably formed between the reinforcing film 23 and the upper valve film 21 to provide enhanced airtight performance. More specifically, as shown in FIG. 5, the intake passages 24 are arranged to charge the plenum 14 with air to fill the aeration unit 13 until the air pressure in the plenum 14 is passed through The distal ends 212 and 222 of the upper and lower valve membranes 21 and 22 overlap and seal to close the intake passage 24. According to the preferred embodiment, when a gas is intended to leak outward, air enters the reinforcing passage 25 from between the distal end portion 232 of the reinforcing membrane 23 and the distal end portion 222 of the upper valve membrane 22, The supplemental air pressure is generated to further seal the intake passage 24 to compensate for the insufficient sealing effect of the upper and lower valve films 21 and 22. That is, the air entering the reinforcing passage 25 is further pressed to the upper and lower valve membranes 21 And 22, thereby achieving sealing of the intake passage 24 between the upper and lower diaphragms 21 and 22.

In this embodiment, the length of the reinforcing film 23 may be smaller than the lengths of the upper valve film 21 and the lower valve film 22, so that when the reinforcing film 23 is overlapped with the upper valve film 21 and the lower portion At the proximal end of the valve membrane 22, the proximal end portion 231 of the reinforcing membrane 23 of the inflation valve 20 and the proximal end portions 211 and 221 of the upper and lower valve membranes 21 and 22 are superposed, the upper valve membrane 21 and the distal end portions 212 and 222 of the lower valve membrane 22 may overlap, but the distal end portion 231 of the reinforcing membrane 23 is not with the distal end portions of the upper valve membrane 21 and the lower valve membrane 22 212 and 222 are fully aligned and overlapped. It is worth mentioning that the length of the reinforcing film 23 is defined as the distance between the near edge and the far edge of the reinforcing film 23. The length of each of the upper valve membrane 21 and the lower valve membrane 22 is defined as the distance between the proximal edge and the distal edge of the upper valve membrane 21 and the lower valve membrane 22.

As shown in FIG. 5, the reinforcing passage 25 is formed between the reinforcing film 23 and the upper valve film 21, wherein the reinforcing passage 25 has an open end facing the plenum 14 and a closed end adjacent thereto. The air inlet 241 is described. In other words, the proximal end of the reinforcing channel 25 is the closed end and the distal end of the reinforcing channel 25 is the open end.

It is worth mentioning that when the inside of the plenum 14 is inflated through the intake passage 24, the air in the intake passage 24 flows in the opposite direction to the air flow in the reinforced passage 25. Therefore, air does not fill the reinforcing passage 25. When air leaks from the plenum chamber 14 back to the reinforcing passage 25, air enters the reinforcing passage 25 to generate a supplemental air pressure to further seal the intake passage 24, thereby preventing air leakage from the intake passage 24.

Next, the heat seal connection between the above five layers of film will be further described. As shown in FIG. 4A, FIG. 4B and FIG. 5, the heat seal seam 30 further includes a seal slit 32 which brings the upper gas chamber film 11 and the reinforcing film 23 and the upper valve film 21 closer thereto. The ends 211 are heat sealed together and And the lower air chamber membrane 12 and the proximal end portion 221 of the lower valve membrane 22 are heat sealed together. The sealing seam 32 can be formed by a primary heat sealing process, and the heat sealing connection of the five-layer film described above is completed by one heat sealing. Of course, one or more sealing seams 32 may be provided as needed. It is worth mentioning that in the heat sealing process, the upper and lower valve films 21 and 22 are provided with a heat-resistant barrier 26 near the proximal end, so that the upper and lower valve films 21 and 22 are not separated by the sealing seam 32. The heat seals are heat sealed together in a completely sealed manner, but are not heat sealed together due to the presence of the heat resistant barrier 26 so as not to close the air inlet 241, thereby forming the air inlet passage 24 that can be inflated. The heat-resistant barrier 26 may be taken out after the heat sealing is completed, or preferably, in the preferred embodiment, the heat-resistant barrier 26 may be an oil-repellent, PVA, high-temperature resistant anti-sticking ink, etc., which is printed in the An inner surface of one of the upper and lower valve films 21 and 22, such as an inner surface of the upper valve film 21 and disposed toward the lower valve film 22, and a surface corresponding to the need to print such as a high temperature resistant anti-stick ink The position can be pre-corona treated to make the paste of the high temperature resistant ink more stable.

It is worth mentioning that the heat resistant barrier 26 does not need to extend completely to the distal ends 212 and 222 of the upper and lower valve membranes 21 and 22. The upper and lower valve films 21 and 22 and the reinforcing film 23 are further heat-sealed together at the distal end by a gas barrier slit 33, and the gas barrier slit 33 further presses the upper and lower valve films 21 and 22 The distal end portions 212, 222, and 232 of the reinforcing membrane 23 are heat-sealed to the lower plenum membrane 12 without being connected to the upper plenum membrane 11, so that after a predetermined gas pressure is reached in the plenum chamber 14, the air pressure is The three layers of films 21, 22 and 23 of the inflation valve 20 are attached to the lower plenum film 12.

The shape of the gas barrier slit 33 can be various, and a bypass passage can be formed between the distal end portions 212 and 222 of the upper and lower valve films 21 and 22, so that the air of the plenum chamber 14 is not easily bypassed. The gas barrier slit 33 enters the intake passage formed by the high temperature resistant barrier 25 twenty four. It will be understood by those skilled in the art that the gas barrier slits 33 are disposed only in a partial region of each of the gas inflating units 13 along the width direction thereof, and do not completely completely seal each of the gas inflating units 13 in the lateral direction. Causes no air intake.

The heat seal seam 30 further includes lateral seal seams 34 corresponding to both sides of each of the intake passages 24, which sandwich the lower plenum membrane 12 and the upper and lower valve membranes 21 and 22 and the reinforced membrane 23 The heat seals together to form the side walls of the intake passage 24. The width of the intake passage 24 is defined by the two sides toward the sealing seam 34. Specifically, the two-way sealing slits 34 may be two inclined heat seal lines such that the width of the intake passage 24 decreases from the air inlet 241 to the plenum 14 . In other words, the proximal open end of the intake passage 24 is a larger open end, and the distal open end of the intake passage 24 is a tapered open end and is in communication with the plenum 14. The tapered intake passage 24 further prevents air from leaking from the plenum 14 to the intake port 241.

As shown in FIGS. 3 and 4A, in the preferred embodiment, the upper valve film 21 and the lower valve film 22 extend into the upper chamber film 11 and the lower gas chamber film 12. In the main passage 15, the inflation valve 20 is further heat sealed to the upper plenum membrane 11 and the lower plenum membrane 12 through a joint slit 38, respectively. The connecting seam 38 may be formed by one heat sealing, that is, the above five-layer film is subjected to a heat sealing pressing operation on the upper and lower sides thereof by a hot pressing die, so that the upper and lower chambers are on the upper and lower sides. The membrane 11 and the upper valve membrane 21 are heat sealed by the joint seam 38, and the lower valve membrane 22 and the lower plenum membrane 12 and the reinforcing membrane 23 are also heat sealed by the joint seam 38. Join together. And the printing barrier 25 extends to be flush with the edges of the upper and lower valve films 21 and 22, such that the upper and lower valve films 21 and 22 are not heat sealed during heat sealing to form the joint seam 38. Together, the formation of the air inlet 241 is not affected to cause the main passage 15 and the intake passage 24 to communicate. As shown in FIG. 3, the air packaging device can An array of said joint seams 38 are arranged in a dot pattern, each of said joint seams 38 being located at an end of a respective one of said respective printed barriers 25.

As shown in FIG. 4C, according to a further modified embodiment, the reinforcing film 23 may not extend into the main passage 15, such that the connecting slit 38 respectively presses the upper valve film 21 and the upper gas The chamber membrane 11 is heat sealed and the lower valve membrane 22 and the lower plenum membrane 12 are heat sealed. The reinforcing film 23 strengthens the connection strength of the lower valve film 22 and the lower plenum film 12.

It is worth mentioning that when the air enters the main passage 15 when inflated, the expansion of the upper and lower plenum films 11 and 12 may respectively pull the upper and lower valve films 21 and 22 together due to the arrangement of the joints 38. Expanded to facilitate opening of the air inlet 241.

In order to produce the air-packing device, the present invention also provides a manufacturing method comprising the steps of: stacking five layers of films on each other, wherein the first film and the fifth film form the upper gas chamber film 11 And the lower chamber film 12, the third layer film and the fourth layer film form the upper valve film 21 and the lower valve film 22, the second layer film forms the reinforcing film 23, and the heat resistant barrier 26 Between the upper valve membrane 21 and the lower valve membrane 22; the five-layer film is formed by the heat sealing step to form the inflatable unit 13 having one or more inflatable and stored gases An inflated body 10, wherein the upper air chamber membrane 11 and the reinforcing membrane 23 and the proximal end portion 211 of the upper valve membrane 21 are heat sealed together by the sealing slit 32, and the lower gas is The chamber membrane 12 is heat sealed with the proximal end portion 221 of the lower valve membrane 22 to form the intake passage 24 between the upper and lower valve membranes 21 and 22, when the plenum 14 of the inflatable unit 13 When the predetermined air pressure is reached, the upper and lower valve films 21 and 22 are attached to the lower air chamber valve film 12 to realize self-sealing. , The reinforcing film 23 reinforcing the upper chamber 11 and the film strength of the connection between the diaphragm 21 to prevent leakage of air from the upper chamber 11 and the upper film between the valve membrane 21.

In this preferred embodiment, it is also possible to include the inflatable body 10 being formed into a plurality of the inflatable units 13 arranged side by side by a heat sealing step at the dividing slit 31, each of the inflatable units 13 having a corresponding one. The intake passages 24 are described so as to achieve mutual interference without being disturbed. The entire inflatable body 10 has other boundary heat seals 35 and the like, and forms a main passage 15 and an inflation port 151, which is equivalent to forming a distribution passage. When inflated, the inflator of the inflator 40 enters the inflator 151, and air enters each of the intake passages 24 from the main passage 15 via the respective intake ports 241, thereby charging each of the inflating units 13 In the plenum 14 . In addition, it is worth mentioning that in the heat sealing process, the same mold can be used for heat sealing molding in the heat sealing operation, or heat sealing operation in different molds in order.

8 to 10 are air-packing devices and their inflation valves 20 in accordance with another preferred embodiment of the present invention. In this preferred embodiment, the air-packing device is not only a filling material, but is formed by heat-sealing and bending the film to form the accommodating cavity 16, so that the packaged article can be directly accommodated in the accommodating cavity 16 so that The air-packing device is capable of providing an air cushioning effect around the packaged article for use as an air-package bag. The shape, size, and the like of the air-packing device can be designed as needed.

More specifically, similarly, the air-packing device also includes an inflatable body 10 formed of two layers of the plenum films 11 and 12, and three inflatable valves formed by the valve films 21, 22 and 23 20. The inflation valve 20 is for inflating each of the inflatable units 13 of the inflatable body 10.

In the example shown in Figures 8 and 9, the air-packing device may form a U-shaped package, and those skilled in the art will appreciate that the examples herein are by way of example only and not limiting of the invention. A person skilled in the art can design the housing 16 with the receiving chamber 16 as needed. Other types of air bags.

In this preferred embodiment, as shown in Figure 10, the reinforcing membrane 23 further includes a reinforcing extension 233 extending at the proximal end 231 at the proximal end such that the reinforcing membrane 23 and the lowering gas The main passage 15 is formed between the chamber membranes 12 such that when inflated, air passes from the main passage 15 between the reinforcing membrane 23 and the lower plenum membrane 12, and then through the respective respective intake passages 24 enters the plenum 14 of each of the inflatable units 13.

Since the reinforcing film 23 has the reinforcing extension 233, the upper plenum film 11 can save a part of the material. Thus, the reinforcing extension 233 is equivalent to being exposed to the outermost side, rather than being located inside the two layers of the plenum films 11 and 12 like the first embodiment described above. That is, the proximal end portion of the upper gas chamber membrane 11 is heat-sealed with the reinforcing membrane 23 and the upper valve membrane 21 and the proximal end portions 231 and 211 without extending to the reinforcing of the reinforcing membrane 23 The position of the extension 233. The extended section 233 of the reinforcing film 23 is overlapped with the proximal end portion of the lower plenum film 12.

Each of the inflatable units 13 of the inflatable body 10 has a plurality of bending slits 36, as shown in FIG. 11, each of the inflatable units 13 may have two bending slits 36, thereby The inflation unit 13 is divided into three sub-inflating units 131 that are connected to each other and communicate with each other. It is worth mentioning that the positions of the bending seams 36 of the inflatable units 11 correspond to each other, that is, the inflatable body 10 is equivalent to having two rows of bent slits 36 arranged at intervals. The bending slits 104 of the plurality of the inflatable units 13 are arranged along a straight line, but are not continuous, so that an inflatable side wall is formed between the adjacent two rows of the bending slits 104, so that the air has the air The cushioning performance package forms a plurality of side walls that surround the bent to form the receiving cavity 16 for receiving the packaged article. It can also be said that the inflatable body 10 has a plurality of rows of bent slits 36 for bending, which can be arranged in a line of nodes spaced apart from each other, thereby The plurality of bending slits 36 may bend the inflating units 13 such that the sub-inflating units 131 of the inflatable body 10 respectively form a plurality of air chamber side walls. It will be understood by those skilled in the art that the number of rows of the bend seams 36 of the inflatable body 10 can be set as desired to provide a desired number of the plenum sidewalls.

Further, each of the bending slits 36 is disposed at an intermediate position of the corresponding inflating unit 13 and a predetermined interval is left between the two adjacent slits 31 to form adjacent sub-inflating The communication passages 17 between the units 131 are such that when inflated, air entering the respective inflating units 13 from the respective intake passages 24 can be distributed to the respective sub-inflating units 131 of the same inflating unit 13 . In addition, the bending slit 36 may not be disposed at an intermediate position of the corresponding inflating unit 13, but may be integrally formed with the dividing slit 31, and the communication passage 17 may be formed in the inflating unit 13 The middle position.

In addition, in the preferred embodiment, after the inflatable body 10 is bent along the two rows of the bending slits 36, the inflatable side walls between the two rows of the bending slits 36 form a bottom side wall, and the bottom portion The front and rear side walls are respectively formed on both sides of the side wall, and the front and rear side walls are further heat-sealed by the end seals 37 on both sides, so that both sides of the inflatable body 10 are heat-sealed, thereby forming the receiving cavity 16 with one end open. . It will be appreciated that the end seals 37 may be continuous heat seals or spaced heat seals. The end seal 37 may be disposed on the outermost slit 31 of the inflatable body 10, or the outermost slit 31 and the end seal 37 may be together in one heat seal. form. Alternatively, the end seal 37 is also an additional heat seal that is distinct from the outermost slit 31.

The air-packing device can be used alone to provide an air cushioning effect to the packaged article. Can also be used with other packaging devices such as boxes or boxes, ie packaging The product can be placed in the accommodating chamber 16 of the air-packing device, and then the air-packing device carrying the packaged article can be placed in another packaging box to further provide protection for the packaged article. Convenient storage and transportation of packaged items.

Another preferred variant embodiment of the air-packing device and its inflation valve according to the present invention is shown in FIG. In this embodiment, the upper and lower valve membranes 21 and 22 of the inflation valve 20 further include outer extensions 213 and 223 that extend the proximal ends 211 and 221, respectively. The main passage 15 may be formed between the outer extensions 213 and 223 such that the lengths of the upper and lower plenum films 11 and 12 are reduced.

In this preferred embodiment of the invention, when each of said plenums 14 is inflated, air is only distributed between the two layers of said valve membranes 21 and 22, unlike in the prior art of Figures 1 and 2, It will first enter the main channel 1D between the two outer membranes 1A and 1B, and then enter the inflation passage 2C. In the present invention, the air enters only between the two layers of the valve films 21 and 22 without being affected by the two layers of the chamber films 11 and 12, and does not enter between the valve film and the chamber film. Guarantee the smoothness of the inflation.

More specifically, in this preferred embodiment of the invention, unlike the prior art of Figures 1 and 2, the two inner membranes 2A and 2B are completely disposed between the two outer membranes 1A and 1B, the present invention The two layers of the valve films 21 and 22 of the inflation valve 20 are only partially overlapped with the two layers of the plenum films 11 and 12. As shown in FIG. 11, the upper valve film 21 is partially overlapped with the upper plenum film 11, and the lower valve film 22 is partially overlapped with the second plenum film 22.

That is, in the present invention, the plenum films 11 and 12 do not extend to the position of the main passage 15, but are folded from the partial position of the inflation valve 20 and then heat-sealed together. Because the main passage 15 has only one layer of the outer extensions 213 and 223 on both sides, the air enters when inflated. After the main passage 15, the outer extensions 213 and 223 of the two layers of the valve films 21 and 22 can be easily expanded to open the intake passage 24 into each of the inflatable units 13.

It is worth mentioning that, in this preferred embodiment of the invention, the two valve films 21 and 22 of the inflation valve 20 may be separate films which are superposed on each other and then heat sealed to form the main passage. 15 and the intake passage 24. It will be understood by those skilled in the art that the inflation valve 20 can also be formed by folding a single film. In each of the above preferred embodiments, the gas chamber films 11 and 12 may be separate films or may be formed by folding one film.

Further, referring to Fig. 12, the main passage 15 may also be formed between the reinforcing film 23 and the lower valve film 22 such that the upper valve film 21 does not need to be exposed to the outside and saves material. That is, the reinforcing film 23 includes a reinforcing extension 231, and the lower valve film 22 includes an outer extension 223, and the main passage 15 is formed in the reinforcing extension 231 and the lower valve film 22 of the reinforcing film 23. Between the outer extensions 223, thereby ensuring a smoothness of inflation.

It is worth mentioning that in the embodiment shown in FIGS. 10 to 12, unlike the prior art of FIGS. 1 and 2, the air needs to enter the main channel 1D between the two outer films 1A and 1B first. Then enter the inflation passage 2C. Also unlike in the prior art, the valve films 2A and 2B are between the two outer films 1A and 1B, but at least one film of the inflation valve 20 may extend to be exposed to the outside of the gas chamber films 11 and 12. And can be used to form the main channel 15. Moreover, the joint slit 38 for facilitating opening of the intake port 241 between the upper and lower valve films 21 and 22 in the first embodiment may not be required.

Those skilled in the art should understand that the embodiments of the present invention described in the above description and the accompanying drawings are only by way of illustration and not limitation. The object of the invention has been achieved completely and efficiently. The functional and structural principles of the present invention have been shown and described in the embodiments, without departing from the The embodiments of the present invention can be modified or modified in any way.

11‧‧‧Upper air chamber membrane

12‧‧‧ lower air chamber membrane

13‧‧‧Inflatable unit

14‧‧‧Inflatable room

15‧‧‧Main channel

21‧‧‧Upper diaphragm

211‧‧‧ Near end

212‧‧‧ distal end

22‧‧‧ lower diaphragm

221‧‧‧ Near end

222‧‧‧ distal end

231‧‧‧ Near end

232‧‧‧ distal end

24‧‧‧Intake passage

241‧‧‧air inlet

32‧‧‧ Sealing seam

33‧‧‧ gas barrier

38‧‧‧ joint seam

Claims (17)

An air-packing device, comprising: an inflatable body comprising an upper plenum membrane and a lower plenum membrane superposed on each other to form at least one inflatable unit, each of the inflatable units having a plenum; And an inflation valve comprising an upper valve membrane, a lower valve membrane and a reinforcing membrane, wherein the upper valve membrane, the lower valve membrane and the reinforcing membrane and the upper air chamber membrane and The air chamber membrane is connected via a series of heat seals to form at least one intake passage between the upper and lower valve membranes, the intake passage for inflating the plenum, wherein the upper valve is completed after the inflation is completed a membrane and the lower valve membrane are attached to the lower plenum membrane to close the intake passage to achieve a self-sealing function, and the reinforced membrane is disposed between the upper valve membrane and the upper plenum membrane To increase the strength of the connection between the upper valve membrane and the upper plenum membrane to prevent the upper valve membrane from being torn. The air-packing device according to claim 1, wherein said upper air chamber film is heat-sealed with a proximal end portion of said upper valve film adjacent to an intake port of said intake passage and a proximal end portion of said reinforcing film Together, the lower plenum membrane is heat sealed with the proximal end of the lower valve membrane adjacent the inlet of the inlet passage. The air-packing device according to claim 2, wherein at least one of said two layers of said valve film is provided with a heat-resistant barrier on the inner surface of said valve film, so that between the two layers of said valve film is formed in a heat sealing process The intake passage is formed. The air-packing device according to claim 3, further comprising one or more gas barriers that heat seal the distal end portions of the upper and lower valve membranes, the gas barrier slits preventing air in the plenum from being Intake passage reverse osmosis. The air-packing device according to claim 4, wherein said gas barrier further heat-seals said upper and lower valve films and said reinforcing film to said lower air chamber film, so that said upper and lower after inflation is completed A valve membrane and the reinforced membrane are attached to the lower plenum membrane to enclose the intake passage. The air-packing device according to any one of claims 1 to 5, wherein the two layers of the plenum film are two separate films or are formed by folding a single film. The air-packing device according to any one of claims 1 to 5, wherein said air-packing device further forms a plurality of said inflating units by one or more slits, and at least one of said inflating units is formed Said intake passage. The air-packing device according to any one of claims 1 to 5, wherein said air chamber film and said valve film and said reinforcing film are flexible films selected from the group consisting of polyethylene film, polypropylene film, and polyvinyl chloride. One or more of a film, a polyester film, a polystyrene film, and a composite film. The air-packing device according to any one of claims 2 to 5, wherein said air-packing device is further formed with a main passage communicating with said intake passage, and when inflated, air enters said main passage and is then distributed into The plenum of each of the inflatable units. The air-packing device according to claim 9, wherein said main passage is formed between said upper and lower plenum membranes. The air-packing device according to claim 9, wherein said main passage is formed between said upper and lower valve films. The air-packing device according to claim 9, wherein said main passage is formed between said reinforcing film and said lower valve film. The air-packing device of claim 11 wherein said upper and lower valve membranes further comprise an outer extension extending adjacent a proximal end of said inlet, said main being formed between said outer extensions The passage, the upper and lower plenum membranes do not need to extend to the position of the outer extension of the upper and lower valve membranes. The air-packing device of claim 12, wherein the lower valve membrane further comprises an outer extension extending adjacent a proximal end of the air inlet, the reinforcement membrane comprising an extension adjacent the intake air a reinforcing extension of a proximal end portion of the mouth, wherein the main passage is formed between the outer extension of the lower valve membrane and the reinforcing extension of the reinforced membrane, the upper plenum membrane not It is desirable to extend to the location of the reinforcing extension of the reinforced membrane. The air-packing device according to any one of claims 1 to 5, wherein a distal end portion of said reinforcing membrane is not aligned with a distal end portion of said upper valve membrane and is located between said reinforcing membrane and said upper valve membrane A reinforcing passage is formed between the upper and the upper valve membrane to further enhance the sealing effect on the intake passage between the upper and lower valve membranes after the inflation is completed. The air-packing device according to any one of claims 1 to 5, wherein the air-packing device forms an air cushion. The air-packing device according to any one of claims 1 to 5, wherein said air-packing device is formed into an air-packing bag having a receiving cavity after a series of heat sealing and bending.