CN204846822U - Multilayer formula air packing plant - Google Patents

Abstract

A multi-layer air-packing device, which includes two or more layers of air-packing main bodies arranged superimposedly, the air-packing main body on the inner side forms an accommodating chamber for storing items to be packed, and the air-packing main body on the outer side Both the main body and the inner air-packing main body are inflatable structures, thereby enhancing the cushioning performance of the multi-layer air-packing device.

Description

Multilayer Air Packing Device

technical field

The utility model relates to an air packing device and a manufacturing method thereof, in particular to a multilayer air packing device and a manufacturing method thereof.

Background technique

In the modern logistics industry, the most widely used is the packing box (packing box). However, the packaging methods of this traditional packaging box do not provide anti-collision, anti-collision and anti-drop functions. That is to say, during transportation or storage, the packaging box or crate will be thrown around, which can easily cause its deformation, which may cause damage or deformation of the packaged items. Therefore, for some items with high packaging requirements, such as electronic digital products, plastic ceramics, biochemical products, food and medicine, etc., it is necessary to provide cushioning for the packaged items to prevent the packaged items from being damaged during transportation and storage. Existing solutions, such as traditional paper packaging boxes, can be filled with cushioning materials such as foam materials inside the paper packaging boxes to achieve the purpose of providing cushioning. However, shipping and storage of such boxes and filled cushioning material to the packaging location is very expensive. Moreover, the buffer foam material pollutes the environment and is not environmentally friendly.

Another improvement is the inflatable packaging bag currently available on the market, which is formed by a series of heat-sealing processes of four layers of film, in which an inflatable chamber is formed between two layers of outer film, and a one-way inflation valve is formed between two layers of inner film. It is used to fill the corresponding inflatable chamber with gas and prevent the gas in the inflatable chamber from leaking out. The two outer layers of film are folded a series of times to form a chamber that can accommodate packaged items. In this way, the packaged items can be cushioned by the inflatable packaging bag on all sides to prevent external impact stress from acting on the packaged items. Damage to packaged items. However, the cushioning performance of the single-layer air-filled packaging bag formed by two layers of outer film is still limited. The side wall cannot restore its shape in time, causing the impact stress to be too concentrated locally, so that the stress is transmitted to the packaged items, causing damage to the packaged items.

Contents of the invention

One object of the present utility model is to provide a multi-layer air-packing device, which includes two or more layers of inflatable packaging bodies superimposed on each other, wherein one layer of inflatable packaging bodies is superimposed on the adjacent another layer of inflatable packaging bodies arrangement, thereby enhancing the cushioning performance of the entire multi-layer air-packing device.

Another object of the present utility model is to provide a multi-layer air-packing device, in which two or more layers of air-packing bodies superimposed on each other are heat-sealed together to form the entire multi-layer air-packing device, or two layers Or the main body of the multi-layer air-packing package is integrally formed, so that the manufacturing process of the multi-layer air-packing device of the present utility model is simple.

Another object of the present utility model is to provide a multi-layer air-packing device, wherein the multi-layer air-packing device includes an integrally formed two-layer air-packing main body, and the two-layer air-packing main bodies are integrally connected through a connecting part, Therefore, the two layers of air-packing main bodies are superimposed, thereby significantly improving the cushioning performance of the air-packing device of the present invention.

Another object of the present invention is to provide a multi-layer air-packing device, wherein the two-layer inflatable package body includes an inner layer inflatable package body and an outer layer inflatable package body, and the inner layer inflatable package body includes a plurality of inner layer inflatable packages unit, the outer layer inflatable packaging main body includes a plurality of outer layer inflatable units, the inner layer inflatable unit and the outer layer inflatable unit are superimposedly arranged, so that through the superimposed inner layer inflatable unit and the The outer air-filled unit enhances the cushioning performance of the entire air-packed unit.

Another object of the present utility model is to provide a multi-layer air-packing device, wherein the inner inflatable unit of the inner inflatable packaging body and the outer inflatable unit of the outer inflatable packaging body Completely close fit, but will produce a predetermined gap, so that the two layers of air-filled units arranged superimposedly enhance the elastic recovery force of each side of the entire air-packing device, thereby improving the cushioning performance of each side.

Another object of the present utility model is to provide a multi-layer air-packing device, wherein when the outer inflatable unit is subjected to impact stress, the air in the outer inflatable unit will be temporarily distributed to the inner inflatable unit However, the cushioning of the inner layer inflatable unit makes the air return to the outer layer inflatable unit, so that the outer layer inflatable unit returns to its original state, thus ensuring that the air will not be too concentrated in a specific area.

Another object of the present utility model is to provide a multi-layer air packaging device, wherein the inner layer inflatable unit and the outer layer inflatable unit are equivalent to providing multi-stage air buffering, and the inner layer inflatable unit is set to reversely In turn, the buffering effect of the outer layer inflatable unit is enhanced, and the arrangement of the outer layer inflatable unit also enhances the buffering effect of the inner layer inflatable unit.

Another object of the present utility model is to provide a multi-layer air-packing device, wherein the inner layer inflatable unit and the outer layer inflatable unit can also be arranged in an unsafe overlapping manner, thereby reducing the The thickness of the device makes the area with weak buffer capacity of the main body of each layer of inflatable packaging reinforced by the area with strong buffer capacity of the main body of another layer of inflatable packaging that is superimposed on it, thereby improving the buffer capacity of the entire multi-layer air packaging device. performance.

Another object of the present utility model is to provide a multi-layer air-packing device, wherein the superimposed outer and inner inflatable units respectively have the same or different inflatable unit structures, such as different sizes and shapes, thereby providing multi-stage cushioning effect.

Another object of the present utility model is to provide a multi-layer air packaging device, wherein the outer layer inflatable unit and the inner layer inflatable unit can each be provided with large and small diameter air chambers, and the cushioning can be improved by different arrangements of the large and small diameter air chambers. performance, and adaptability to said item to be packaged.

Another object of the present invention is to provide a multi-layer air-packing device, wherein the multi-layer air-packing device has a simple structure, is easy to manufacture, and is suitable for large-scale application in the packaging field.

In order to achieve the above purpose, the utility model provides a multi-layer air-packing device, which includes two or more layers of air-packing main bodies arranged superimposedly, and the air-packing main body located on the inner side forms a storage space for storing items to be packed. The accommodating cavity, the outer air-packing main body and the inner air-packing main body are all inflatable structures, so as to enhance the cushioning performance of the multi-layer air-packing device.

Preferably, the two or more layers of air-packing bodies include 2-20 layers of said air-packing bodies.

Preferably, the two or more layers of air-packing bodies include an inner-layer air-packing body and an outer-layer air-packing body, the inner-layer air-packing body forms the accommodating cavity, and is arranged in the outer-layer air-packing body.

Preferably, the inner air-packing body and the outer air-packing body are fixed together by heat sealing or bonding.

Preferably, the inner air-packing main body and the outer air-packing main body are arranged overlapping or staggered to form a triangular cushioning structure at the corner.

Preferably, the inner air-packing body and the outer air-packing body are integrally connected and formed by one inflatable body.

Preferably, the inflatable main body includes a plurality of inflatable units and one or more separation seams for separating two adjacent inflatable units, wherein each inflatable unit forms a plurality of connected through a plurality of bending seams. A sub-inflatable unit, a plurality of sub-inflatable units are respectively used to form the inner air-packed main body and the outer air-filled package main body.

Preferably, it further includes one or more connecting parts, the inner air-packing main body and the outer air-packing main body are integrally connected through the connecting parts, and each of the connecting parts is formed in two rows of the bent between seams.

Preferably, the inner air-packing main body further includes one or more folding parts, so that after being folded, the folding parts make corners of the inner air-packing main body substantially at right angles.

Preferably, the folded portion reduces the amount of inflation through the venting slit.

Preferably, wherein said folded portion is an inflated portion.

Preferably, the inner air-packing main body and the outer air-packing main body may each have sub-inflatable units with different diameters, or sub-inflatable units with the same diameter.

Preferably, the side of the main body of the inner air-filled package has one or more large-diameter sub-inflatable units.

Preferably, the main body of the inner air-filled package further has an inner seam, which is arranged between at least one first air chamber and at least one second air chamber at the side.

Preferably, the sub-inflatable units of the inner/outer inflatable packaging body further form a plurality of sub-inflatable units through sub-slits, the diameter of which is smaller than that of the sub-inflatable units of the outer/inner inflatable packaging body. The inflatable unit has a small diameter.

Preferably, the separation seam produces a right-angled or oblique or curved turning at the connecting portion of the inner layer and the outer layer of the inflatable packaging body, thereby forcing the superimposed sub-inflatable units to form a staggered structure.

Preferably, the inflatable body is formed by heat-sealing and folding processes of the first air chamber layer and the second air chamber layer, the inflatable body forms an inflation port and a main channel, and each inflatable unit is provided with an inflatable Air enters the main passage from the inflation port, and enters each of the inflation units from the main passage through the inflation valve.

Preferably, the inflation valve comprises two valve membranes, which are respectively heat-sealed with the first air chamber layer and the second air chamber layer of the inflatable body, and an air gap is formed between the two valve membranes. An air intake channel, when the inflatable unit is inflated through the air intake channel, the inner surfaces of the two valve films are automatically adsorbed and stuck together to prevent the gas entering the inflatable unit from being reflected from the air intake channel Seep.

Preferably, wherein the inflation valve is a self-adhesive check valve, which includes a first valve membrane, a second valve membrane, and a check sealing membrane, and the first valve membrane and the check sealing membrane are located at The outer layer, the second valve film is located between the first valve film and the check sealing film, an air intake channel is formed between the first valve film and the second valve film, the first valve film A check chamber is formed between the second valve membrane and the check seal membrane, and when gas is filled into the inflatable unit via the main passage through the air intake passage, the first valve membrane, the The inner surface of the second valve membrane and the non-return sealing membrane are automatically adsorbed and stuck together to prevent the gas in the inflatable unit from seeping back from the inlet channel, and when the gas returns, it will selectively enter the The gas entering the non-return chamber exerts a pressure effect on the second valve membrane, thereby further closing the air intake passage, thereby preventing gas reverse osmosis.

According to another aspect of the utility model, the utility model also provides a multilayer air-packing device, which includes:

An inner layer inflatable packaging body, the inner layer inflatable packaging body includes a plurality of inner layer inflatable units, and forms an accommodating cavity for accommodating items to be packaged;

At least one outer air-filled packaging body, wherein the outer air-filled packaging body includes a plurality of outer-layer air-filled units, wherein the inner-layer air-filled units of the inner-layer air-filled packaging body and the outer air-filled packaging body The outer inflatable units are superimposed and arranged to form a multi-layer air buffer structure.

Preferably, the inner inflatable unit of the inner inflatable packaging body forms a connected inner bottom side wall, an inner front side wall and an inner rear side wall, and the outer inflatable unit forms a connected outer front side The wall and the outer rear side wall, and the inner front side wall and the inner rear side wall respectively form a superimposed structure with the outer bottom side wall, the outer front side wall and the outer rear side wall.

Preferably, the outer air-packing main body further includes an outer bottom wall formed by the outer inflatable unit, the outer inflatable unit of the outer bottom wall and the inner bottom wall The inner inflatable units are arranged in layers.

Preferably, the inner layer inflatable packaging body further includes an inner layer left side wall and an inner layer right side wall formed by the inner layer inflatable unit, and the outer layer inflatable packaging body further includes an inner layer inflatable unit formed by the outer layer inflatable unit Form the outer left side wall and the outer right side wall.

Preferably, the inner air-packing body or the outer air-packing body further includes a top side wall formed by the inner inflatable unit or the outer inflatable unit.

Preferably, the inner air-packing body and the outer air-packing body are fixed together by heat sealing or bonding.

Preferably, the inner air-packing main body and the outer air-packing main body are integrally connected, and are formed by one inflatable main body, wherein the inflatable main body includes a plurality of inflatable units arranged side by side and for separating phases. Adjacent to one or more separation slits of two inflatable units, each inflatable unit is divided into a plurality of connected sub-inflatable units via bending slits, and the sub-inflatable units form the longitudinally arranged The inner layer inflatable unit and the outer layer inflatable unit.

Preferably, each of the inner layer inflatable unit and the outer layer inflatable unit has the same diameter, or has air chamber units with different diameters.

Preferably, the sub-inflatable units forming the inner layer inflatable unit or the outer layer inflatable unit further generate a plurality of sub-inflatable units through sub-divided slits, so that the multi-layer air-packing device forms each layer Multi-layer cushioning structure with different cushioning capacities.

Preferably, the inflatable body is formed by heat-sealing and folding processes of the first air chamber layer and the second air chamber layer, the inflatable body forms an inflation port and a main channel, and each inflatable unit is provided with two A one-way inflatable valve formed of one-layer or three-layer film, air enters the main channel from the inflatable port, and enters each inflatable unit from the main channel through the inflatable valve.

The utility model also provides a manufacturing method of a multilayer air-packing device, which includes the following steps:

(a) arranging the first and second air chamber layers, and the valve film forming the inflation valve in a stacked manner, and heat sealing to form an inflatable body capable of storing gas;

(b) heat-sealing the inflatable body along a plurality of separation seams to form a plurality of independent inflatable units, each of the inflatable units is provided with at least one inflation valve, wherein the inflatable body forms an inflation port and a main passage, through which air enters the main passage from the inflation port, and from which air enters each of the inflation units via the inflation valve; and

(c) Heat sealing along multiple rows of bending seams to form each of the inflatable units into a plurality of connected sub-inflatable units to form a plurality of side walls, and bend the plurality of side walls along the bending seams Folding to form a multi-layer air-packing device having an inner air-packing body and an outer air-packing body, wherein the inner air-packing body forms an accommodating cavity for accommodating items to be packaged, and the outer air-packing body It is superimposedly arranged on the outer side of the inner air-packing main body to form a multi-layer air buffer structure.

Preferably, in the above manufacturing method, the diameters of the sub-inflatable units are consistent, or form a matching structure of large-diameter air chambers and small-diameter air chambers.

Preferably, in the above-mentioned manufacturing method, a step is further included: forming large-diameter air chambers on the side of the inner air-packing main body, and the inner surfaces of these large-diameter air chambers are arranged in a radian so as to easily engage the items to be packaged.

Preferably, in the above-mentioned manufacturing method, the step is further included: forming a multi-layered sub-inflatable on the side of the entire multi-layer air-packing device by heat-sealing the inner seam on the side of the inner air-packing main body. The superimposed structure formed by the units is used to enhance the side elastic recovery force of the multi-layer air-packing device.

Preferably, in the above-mentioned manufacturing method, a step is further included: making the separation seam turn at right angles, obliquely or in a curved shape at the connecting portion of the inner layer and the outer air-packing main body.

Preferably, in the above-mentioned manufacturing method, further comprising the step of: heat sealing along the position of the sub-separation seam so as to further separate the sub-inflatable unit of the inner air-packing main body or the outer air-packing main body to form a small-diameter sub-inflatable unit.

Description of drawings

Fig. 1 is a schematic perspective view of a multilayer air-packing device according to a first preferred embodiment of the present invention.

Fig. 2 is a side half-sectional schematic view of the multi-layer air-packing device according to the first preferred embodiment of the present invention.

FIG. 3 is a schematic cross-sectional view of FIG. 2 .

Fig. 4 is a schematic structural view of the multi-layered air-packing device in the uninflated and unfolded state according to the first preferred embodiment of the present invention.

Fig. 5 is a schematic diagram of the top structure of the multilayer air-packing device according to the first preferred embodiment of the present invention.

Fig. 6 is a schematic diagram of the bottom structure of the multilayer air-packing device according to the first preferred embodiment of the present invention.

Fig. 7 is a schematic diagram of the use state of the multi-layer air-packing device according to the first preferred embodiment of the present invention when it is applied to package articles.

Fig. 8 is a schematic perspective view of a multilayer air-packing device according to a second preferred embodiment of the present invention.

Fig. 9 is a side half-sectional schematic view of the multilayer air-packing device according to the second preferred embodiment of the present invention.

FIG. 10 is a schematic cross-sectional view of FIG. 9 .

Fig. 11 is a schematic diagram of the structure of the multi-layer air-packing device in the uninflated and unfolded state according to the second preferred embodiment of the present invention.

Fig. 12 is a schematic diagram of the top structure of the multilayer air-packing device according to the second preferred embodiment of the present invention.

Fig. 13 is a schematic diagram of the bottom structure of the multilayer air-packing device according to the second preferred embodiment of the present invention.

Fig. 14 is a schematic view of the side structure of the multilayer air-packing device according to the second preferred embodiment of the present invention.

Fig. 15 is a schematic diagram of the use state of the multi-layer air-packing device according to the above-mentioned second preferred embodiment of the present invention when it is applied to package articles.

Fig. 16 is a perspective structural view of a multi-layer air-packing device according to a variant implementation of the second preferred embodiment of the present invention.

Fig. 17 is a schematic diagram of a multi-layered air-packing device when it is not inflated and unfolded according to a variant implementation of the second preferred embodiment of the present invention.

Fig. 18 is a schematic diagram of an exploded structure of a multilayer air-packing device according to a third preferred embodiment of the present invention.

Fig. 19 is a schematic perspective view of the multi-layered air-packing device according to the third preferred embodiment of the present invention.

Fig. 20 is a structural schematic diagram of the one-way inflation valve of the multilayer air-packing device according to the first preferred embodiment of the present invention.

21 to 23B are structural schematic diagrams of another one-way inflation valve of the multi-layer air-packing device according to the first preferred embodiment of the present invention.

Detailed ways

The following description is used to disclose the utility model so that those skilled in the art can realize the utility model. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variants, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

As shown in Figures 1 to 6, it is a multi-layer air-packing device according to a first preferred embodiment of the present utility model, which can be used to store electronic products, food, pharmaceutical products, chemical raw materials, biological materials, plastic ceramics, Various items to be packaged such as fast moving consumer goods. Because the multi-layer air-packing device has air cushioning properties, it is suitable for providing the effect of air cushioning for the article to be packaged. Those skilled in the art can understand that the above-mentioned article to be packaged is not limited to the ones listed here. For example, according to actual needs, the multi-layer air-packing device of the present invention can also be applied to the packaging of other types of articles.

Specifically, the multi-layer air-packing device includes two or more layers of air-packing main bodies, which are arranged superimposed on each other, thereby enhancing the cushioning performance of the entire air-packing device. Those skilled in the art can understand that the two-layer or multi-layer air-packing body can be a two-layer air-packing body, a three-layer air-packing body or more air-packing bodies. In this preferred embodiment, the two-layer air-packing body is taken as an example, which includes an inner-layer air-packing body 1 and an outer-layer air-packing body 2, which are superimposed on each other and arranged in a dislocation manner to enhance the multi-layer air The cushioning performance of the surrounding wall of the packaging device.

The inner air-packing main body 1 and the outer air-packing main body 2 may be separate inflatable structures, which are connected into an integral structure by means of heat sealing or the like, or may be the inner air-packing main body 1 and the The outer inflatable packaging main body 2 is an integrated structure. In this preferred embodiment of the present invention, taking the integrated structure as an example, the inner inflatable packaging main body 1 and the outer inflatable packaging main body 2 are integrated by an inflatable main body 10 formed. Of course, the integral structure formed by the inner air-packing main body 1 and the outer air-packing main body 2 also has a multi-layer structure, so as to enhance the cushioning performance of the entire multi-layer air-packing.

In this preferred embodiment of the present invention, the inner air-packing main body 1 and the outer air-packing main body 2 are arranged in layers. More specifically, the inflatable body 10 includes at least one inflatable unit 11, wherein the inflatable unit 11 includes a first air chamber layer 101 and a second air chamber layer 102, which overlap each other to form an inflatable chamber 12 and are formed with At least one inflation port 13 , the inflation port 13 communicates with the inflation cavity 12 for charging the inflation cavity 12 . As shown in the figure, two or more inflatable units 11 are arranged side by side to form the inflatable body 10 , wherein the inflation valve 20 is disposed on each of the inflatable units 11 . In other words, each of the inflatable units 11 can be inflated independently, and an extended separation slit 103 is formed between two adjacent inflatable units 11 , which can be implemented as heat between two adjacent inflatable units 11 . Sealing lines, so that the air-filled chamber 12 can be divided into a plurality of individual air-filled chambers 12 by means of these separation seams 103 . In this way, when one of the inflatable units 11 is damaged and leaks air, the other inflatable units 11 may not be affected. Of course, it is worth mentioning that the inflatable units 11 can also communicate with each other, so that only one inflatable valve 20 is needed to inflate all the inflatable units 11 . That is to say, the multilayer air-packing device of the present invention can form a plurality of inflatable units 11 by heat sealing the first air chamber layer 101 and the second air chamber layer 102 .

In addition, since the shape of each inflatable unit 11 can be changed after being inflated, the inflatable body 10 can be made in various shapes and sizes. The inflatable unit 11 can be in the shape of a strip (such as a horizontal strip and/or a vertical strip, etc.), a block, etc., and its shape is not limited. In this preferred embodiment, the inflatable unit 11 can be formed in a strip. In this preferred embodiment, the inflatable body 10 can also form an inflation passage 14, the inflation passage 14 communicates with the inflation port 13, and communicates with each inflation unit 11 through one or more inflation valves 20 In this way, when inflating from the inflation port 13, the air will enter the inflation passage 14, and then the inflation passage 14 will guide the air into the corresponding each of the inflation valves 20, so that the air will enter into each of the inflation valves 20 again. In the inflatable unit 11 described above. That is to say, the inflation passage 14 is an air distribution passage, which distributes the air charged from the inflation port 13 to each of the inflation units 11 . An inflation nozzle may be provided at the inflation port 13 to be connected to an inflation device such as an air pump, so as to fill the multi-layer air-packing device with air.

Each of the inflatable units 11 of the inflatable body 10 has a plurality of bending seams 104 , so that each of the inflatable units 11 further forms a plurality of corresponding sub-inflatable units 111 . It is worth mentioning that the positions of the bending seams 104 of the inflatable units 11 correspond, that is to say, the inflatable body 10 has a plurality of rows of bending seams 104 spaced apart from each other, and are arranged in a plurality of said bending seams 104 . The bending seams 104 of the inflatable unit 11 are arranged along a straight line, but are not continuous, so that a side wall is formed between two adjacent rows of the bending seams 104, so that the packaging box with air cushioning performance A plurality of side walls are formed, and these side walls surround a receiving chamber for receiving the items to be packaged. It can also be said that the inflatable body 10 has a plurality of rows of bending seams 104 for bending, which can be arranged as node lines spaced apart from each other, so that along these rows of bending seams 104, the inflatable body 10 can be formed into multiple rows. The side walls of an air chamber, thereby forming the inner air-packing main body 1 and the outer air-packing main body 2.

In this preferred embodiment of the present invention, the inflatable main body 10 forms a connecting portion 30 and is integrally connected with the inner air-packing main body 1 and the outer air-packing main body 2 . The connecting portion 30 includes a plurality of turning seams 31 and a turning unit 32 extending between two adjacent turning seams 31 . The turning seam 31 extends obliquely between the inner air-packing main body 1 and the inflatable unit 11 of the outer air-packing main body 2 , and is connected to the separation seam 103 .

In addition, the number of the bending seams 104 of each inflatable unit 11 can be set as required, that is to say, the number of rows of the bending seams 104 of the inflatable body 10 can be changed, so that the corresponding inflatable The body 10 may have multiple side walls. Therefore, the air-packing device forms accommodating spaces of different shapes, so as to form air-packing devices of different shapes and structures.

In addition, these bending seams 104 do not separate the adjacent sub-inflatable units 111, that is to say, at least one communication channel 112 is formed between adjacent sub-inflatable units 111, so that when inflated, the air Each of the sub-inflatable units 111 is entered through these communicating passages 112 . In the example shown in the figure, the central part between the adjacent sub-inflatable units 111 is provided with the bent seam 104 formed by heat sealing, and the two sides of the bent seam 104 are formed with the communication Channel 112. In another embodiment, the bending seam 104 may be formed by heat sealing at both ends of the sub-inflatable unit 111 , and the communication channel 112 may be formed at the middle.

It can be seen from the figure that the sub-inflatable unit 111 of the inner air-packing main body 1 and the sub-inflatable unit 111 of the outer air-packing main body 2 are superimposedly arranged to form a double-layer structure. Further, the sub-inflatable units 111 of the inflatable unit 11 are arranged along the length direction, thereby forming a plurality of inner inflatable units 1111 of the inner air-packing main body 1 and a plurality of inner inflatable units 1111 of the outer air-packing main body 2 respectively. A plurality of outer layer inflatable cells 1112 . The inner layer inflatable unit 1111 and the outer layer inflatable unit 1112 are extensions of each other, and are integrally connected to form the inflatable unit 11 . The inner inflatable unit 1111 and the outer inflatable unit 1112 are bent to form the side walls of the inner inflatable package body 1 and the outer inflatable package body 2 respectively, and are arranged in a stacked shape .

For example, in this preferred embodiment, the inner air-packing main body 1 forms an inner front side wall 1a, an inner rear side wall 1b, and an inner bottom side wall 1e, and forms an accommodating cavity 100 for storing items to be packaged. The air-pack main body 2 forms an outer front side wall 2a, an outer rear side wall 2b, and an outer bottom side wall 2e. The inner front side wall 1a of the inner layer inflatable packaging body 1 and the outer front side wall 2a of the outer layer inflatable packaging body 2 are superimposedly arranged, and the inner front side wall 1a of the inner layer inflatable packaging body 1 The rear side wall 1b and the outer rear side wall 2b of the outer air-packing main body 2 are superimposedly arranged, and the inner bottom side wall 1e of the inner air-packing main body 1 and the outer air-packing main body The outer bottom side walls 2e of 2 are superimposed, so that a multi-layer superimposed structure is formed on each side of the air-packing device of the present invention. As shown in FIG. 6 , the inflatable body 10 is heat-sealed along the two end sealing lines 116 and 117 , thereby connecting the inflatable body 10 end to end. It is worth mentioning that, in this preferred embodiment, the inner air-packing main body 1 forms an inner bag with an accommodating cavity 100, and the outer air-packing main body 2 also forms an outer bag with an accommodating space. The inner air-packing main body 1 extends into the accommodating space of the outer bag formed by the outer air-packing main body 2, thereby forming a bag-in-bag structure. Certainly, the present invention is not limited in this aspect, and in practical application, other structures may also be used instead of forming a completely regular bag structure.

Thus, in this preferred embodiment of the present invention, the inner inflatable unit 1111 of the inner inflatable packaging body 1 is stacked with the outer inflatable packaging body 2 and the outer inflatable unit 1112 , to enhance the cushioning performance of the air-packing device of the present invention. The inner layer inflatable unit 1111 of the inner layer inflatable packaging body 1 and the outer layer inflatable unit 1112 of the outer layer inflatable packaging body 2 are stacked so that the inner layer inflatable unit and the outer layer A buffer space is formed between the inflatable units, so that the impact stress applied to the outer layer inflatable unit will not be directly transmitted to the items to be packaged, but provides a predetermined buffer effect to the outer layer inflatable unit 1112 through the buffer space , and then the inner layer inflatable unit 1111 further provides a cushioning effect, thereby effectively distributing the impact stress.

When the outer layer inflatable unit 1112 is subjected to impact stress, the air in the outer layer inflatable unit 1112 will be temporarily distributed to the inner layer inflatable unit 1111, but the buffering and restoring force of the inner layer inflatable unit 1111 will make the air Return to the outer layer inflatable unit 1112 to restore the outer layer inflatable unit 1112 to its original state, thus ensuring that the air will not be too concentrated in a specific area. The overlapping arrangement of the outer layer inflatable unit 1112 and the inner layer inflatable unit 1111 enhances its recovery performance, thereby providing more effective cushioning performance.

In some embodiments, for example, the inner air-packing main body 1 is integrally connected to the outer air-packing main body 2 through one or more connecting parts 30, so that when used to pack the packaged items, it can protect the packaged items. The positioning effect, thereby enhancing the buffering effect. The connection part 30 is formed between two rows of bending seams 104, so that the connection part 30 also forms an inflatable structure, as shown in FIG. 1, which can enhance the top cushioning performance of the multi-layer air-packing device. Those skilled in the art can understand that, in some other embodiments, the multi-layer air-packing device of the present utility model may also have no obvious connection portion 30, that is, the adjacent inner layer inflatable unit 1111 and the outer layer The layer inflatable unit 1112 is integrally formed by bending.

When the packaged items are stored in the packaging device of the present utility model and transported, when the entire air-packed device shakes due to impact, the packaged items will not be concentrated in a certain part due to the pulling effect of the inner air-filled packaging main body 2 Location. Specifically, for example, when the packaged items want to shake to the right corner, the left side of the inner air-filled packaging body 1 of the air-packing device of the present invention is connected to the outer outer air-filled packaging body 2, thereby Its pulling action will cause the packaged item to return to its original position. That is to say, when the packaged items are stored in the inner air-packing main body 1 of the air-packing device, they will always tend to remain in a fixed position, and keep a predetermined distance from the outer air-packing main body 2 on the outside without direct contact. , so that the stress applied to the outer air-tight packaging body 2 on the outside can be evenly distributed through the sealed air chamber, and will not be directly transmitted from the sealed air chamber of the outer air-filled packaging body 2 to the packaged items.

On the other hand, because the inner inflatable packaging main body 1 of the present invention is connected and fixed to the outer inflatable packaging main body 2 outside, this makes the inner inflatable packaging main body 1 of the present invention and the outer inflatable packaging main body 2 There will be a predetermined amount of air in the buffer space between them. When the outer inflatable package body formed by the inflatable three-dimensional package is impacted and impacted, the buffer space between the inner inflatable package body 1 and the outer inflatable package body 2 and the predetermined amount of air also form a layer of air chamber structure 3, so as to help play a cushioning role, and separate the packaged items from the sealed air chamber of the outer air-filled packaging body 2, thereby preventing the Impact forces are transmitted directly to the packaged item. In this way, through the air cushioning effect between the inner air-packing main body 1 and the outer air-packing main body 2, the arrangement of two-layer air-packing main bodies also enhances the air-packing function of the air-packing device of the present invention.

In addition, the end inflatable units 1113 at both ends of the outer and inner inflatable packaging bodies 2 and 1 are also connected by end seams 114, while the inner inflatable packaging body 1 is also provided with inner seams 115, which The side buffer units 1114 are sealed together to provide a buffer space between the side buffer unit 1114 and the end inflatable unit 1113, so that the side inflatable units also form a superimposed structure, thereby having a strong elastic recovery force , thereby enhancing the side cushioning performance of the entire air-packing device.

The inner layer inflatable packaging body 1 of the present utility model and the inner layer inflatable unit 1111 and the outer layer inflatable unit 1112 of the outer outer layer inflatable packaging body 2 may have substantially the same structure, or may have Structures of different shapes and sizes. For example, in this preferred embodiment of the present utility model, it can be seen from Figs. Unit 111 has a different gas chamber structure. More specifically, the inner inflatable unit 1111 of the inner inflatable packaging body 1 is further divided into a plurality of sub-inflatable units 1111i by the partition 105, so that one outer inflatable unit of the outer inflatable packaging body 2 1112 corresponds to a plurality of sub-inflatable units 1111i formed by the inner inflatable unit 1111 of the inner inflatable packaging main body 1 . For example, in the example shown in the figure, each of the inner layer inflatable units 1111 is divided into two sub-inflatable units 1111i by one of the sub-separation seams 105, so that one of the outer inflatable packaging main body 2 The outer inflatable unit 1112 corresponds to the two sub-inflatable units 1111i formed by the inner inflatable unit 1111 of the inner inflatable packaging body 1 .

In the above embodiments, it can also be said that the outer air-packing main body 2 forms a large-diameter air chamber structure, while the inner air-packing main body 1 forms a small-diameter air chamber structure, so that the outer air-packing main body 2 and the inner inflatable packaging main body 1 form an arrangement of multiple layers of different air chamber structures, and each layer of air chambers provides different levels of cushioning effect, specifically, the outer inflatable packaging main body 2 provides the cushioning of large diameter air chambers effect, the cushioning effect of the filling air between the outer air-packing main body 2 and the inner air-packing main body 1, and the small-diameter air chamber cushioning effect of the inner air-packing main body 1, so that the entire multi-layer Type air-packing device provides multi-level cushioning effect.

It is worth mentioning that those skilled in the art can also understand that in the multi-layer air packaging device of the present invention, the outer air-packing main body 2 may also have a small-diameter inflatable unit, and the inner layer inflatable The package main body 1 has a large-diameter inflation unit. Alternatively, both the inner layer and the outer layer have air-filled units with large and small diameters, and they are arranged alternately according to needs.

As shown in Figure 7, when the length of the air chambers of the bottom walls of the inner and outer air-packing main bodies 1 and 2 is relatively short, and the length of the air chambers of the side walls is relatively long, the multilayer air-packing device Suitable for packaging flat or thin items. In practical applications, multiple multi-layer air-packing devices can also be used to pack articles to be packaged, for example, two multi-layer air-packing devices can be used to pack articles to be packaged in a paired manner.

Figures 8 to 15 are schematic structural views of a multi-layer air-packing device according to a second preferred embodiment of the present invention, which has a structure similar to that of the above-mentioned first preferred embodiment of the multi-layer air-packing device, and More suitable for square items to be packaged.

Similarly, it includes an inner air-packing main body 1A and an outer air-packing main body 2A, which are superimposed on each other to enhance the cushioning performance of the peripheral wall of the multi-layer air-packing device. The inner air-packing main body 1A and the outer air-packing main body 2A can be separate inflatable structures, which are connected into an integral structure by means of heat sealing or the like, or can be the inner air-packing main body 1A and the The outer inflatable packaging main body 2A is an integrated structure. In this preferred embodiment of the present invention, taking the integrated structure as an example, the inner inflatable packaging main body 1A and the outer inflatable packaging main body 2A are integrated by an inflatable main body 10A formed. Of course, the integral structure formed by the inner air-packing main body 1A and the outer air-packing main body 2A also has a multi-layer structure, so as to enhance the cushioning performance of the entire multi-layer air-pack.

In this preferred embodiment, the inner inflatable unit 1111A of the inner inflatable package body 1A forms an inner front side wall 1a', an inner rear side wall 1b', an inner left side wall 1c', an inner right side wall 1d' and The inner bottom side wall 1c' also forms an accommodating cavity 100A for storing items to be packaged, and the outer inflatable unit 1112A of the outer inflatable packaging main body 2A forms an outer front side wall 2a', an outer rear side wall 2b', and an outer left side wall wall 2c', outer right side wall 2d' and outer bottom side wall 2e'. The inner front side wall 1a', the inner rear side wall 1b', the inner left side wall 1c', the inner right side wall 1d' and the inner bottom side of the inner air-filled packaging main body 1A The wall 1c' is connected with the outer front side wall 2a', the outer rear side wall 2b', the outer left side wall 2c', the outer right side wall 2d' and the outer side wall 2d' of the outer inflatable packaging main body 2. The outer bottom sidewalls 2e' are stacked and arranged respectively, so that a multi-layered stacked structure is formed on each side of the air-packing device of the present invention.

It is worth mentioning that each of the inner and outer air-packing main bodies 1A and 2A also includes two folding units 40A respectively located at the two corners of the inflated air-packing device, so that the formed The corners of the air-cushioned packaging bag are easy to fold, which facilitates the formation of a three-dimensional configuration. In addition, the bottom wall may be arranged approximately at right angles to the four surrounding walls, so as to form a regular rectangular or square receiving space between the bottom wall and the four surrounding walls. The folding unit 40A can protrude outward so as to be stuffed into the interior of the multi-layer air-packing device, and the arrangement of the folding unit 40A makes the inner air-packing main body 1A form two side walls 1c' and 1d', the outer air-packing main body 2A forms two side walls 2c' and 2d', and these side walls respectively form approximately right angles with the adjacent bottom wall and the front and rear side walls, so that the entire air-packing device Suitable for roughly square items to be packed.

Each of the folding units 40A can be realized by setting a plurality of exhaust slits 401A in the corresponding sub-air chamber units 111A, and these exhaust slits 401A reduce the inflation amount of the corresponding sub-air chamber units 411A, thereby facilitating the whole The folding of the folding unit 30A. The air vent 401A, for example, can be formed by heat sealing, and its shape, size, position, etc. are not limited, for example, it can be a plurality of heat sealing lines or heat sealing blocks arranged horizontally or vertically.

In another embodiment, the folding unit 40A may also be a non-inflatable unit, and the gas distribution is realized through the transverse communication channel between the sub-inflatable units. In addition, the sub-air chamber units of each of the inner and outer air-filled packaging bodies 1A and 2A may have different sizes and diameters, so as to adapt to the shape and size of the items to be packaged. Moreover, the sub-air chamber units with different sizes and diameters can realize multi-level cushioning, thereby also enhancing the cushioning performance of the entire air-packing device. In this preferred embodiment, the side portion of the inner air-packing main body 1A has a large-diameter air chamber, so that the inner wall of the side portion of the inner air-packing main body 1A is roughly arc-shaped, so as to be better compatible with the to-be Fitting of packaged items.

As shown in Figures 16 and 17, it is a multi-layer air-packing device according to a variant implementation of the above-mentioned second preferred embodiment of the present utility model, wherein the outer air-packing main body 2A does not form an outer bottom side wall, Therefore, only four sides of the multi-layer air-packing device form a double-layer laminated structure. Those skilled in the art can understand that, according to the concept of the present utility model, the collocation of the side walls of the inner and outer air-packing main bodies 1A and 2A can also be selected in other ways, such as increasing or decreasing a certain side wall , in some embodiments, it is also possible to form the top and side walls to become the cover structure of the multi-layer air-packing device.

In addition, the outer inflatable unit 1112A of the outer inflatable packaging body 2A may also form an incomplete overlapping structure with the inner inflatable unit 1111A of the inner inflatable packaging body 1A, that is, the separation seam 103A is not along the extend in a straight line, but produce a turning point at the connection between the outer inflatable unit 1112A of the outer inflatable packaging main body 2A and the inner inflatable unit 1111A of the inner inflatable packaging main body 1A, such as vertically or obliquely or Turning in a curved shape, the outer layer inflatable unit 1112A and the inner layer inflatable unit 1111A that overlap each other form a staggered structure.

In addition, the position of the separation seam 103A of the inner air-packing main body 1A is a non-inflatable structure with weak cushioning capacity, while the outer air-packing main body 2A corresponding to the position of the separation seam 103A of the inner air-packing main body 1A The above is the inflatable structure formed by the outer inflatable unit 1112A, which has a strong cushioning effect; similarly, the position of the separation seam 103A of the outer inflatable packaging main body 2A is a non-inflatable structure, and the cushioning capacity is relatively weak, while corresponding to the The inner layer inflatable packaging body 1A at the position of the separation seam 103A of the outer layer inflatable packaging body 2A is an inflatable structure formed by the inner layer inflatable unit 1111A, which has a strong buffering effect, so that the dislocated and stacked inner layer and outer layer The layers of air-packing main bodies 1A and 2A improve the cushioning performance on all sides of the entire air-packing device, and can ensure that the cushioning performance on all sides is basically uniform.

It is worth mentioning that the above-mentioned various seams such as separation seams, bending seams, turning seams, end sealing seams, inner seams, etc. can be formed by heat sealing process. It heat-seals two or more layers of flexible films together through a heat-sealing process.

As shown in Figure 18 and Figure 19, according to the third preferred embodiment of the present utility model, the multi-layer air-packing device includes two layers of air-packing main bodies 1B and 2B, and the two-layer air-packing main bodies 1B and 2B are respectively composed of One inflatable body 10B is formed, and two of said inflatable bodies 10B are heat-sealed together through a heat-sealing seam 15B, and form a laminated structure.

As shown in the figure, the stacking structure of the inner air-packing main body 1B and the outer air-packing main body 2B can be various, for example, they can be in the same basic shape so as to overlap each other, or they can be similar to the one shown in Figure 19. As shown, the arrangement is staggered, that is, the connecting edges between the side walls of the inner air-packing main body 1B do not overlap with the connecting edges between the side walls of the outer air-packing main body 2B, thereby forming triangular supports at each corner structure, thereby enhancing the cushioning effect.

As shown in FIG. 20, the inflation valve 20 is a one-way inflation valve, which includes two sealing films 21 and 22, which are overlapped and fixed between the two air chamber layers 101 and 102, thereby forming a four-layer structure, An air-filled passage 24 is formed between the two sealing films 21 and 22 . Correspondingly, when the inflatable body 10 is inflated, the two sealing films 21, 22 are bonded together to seal the inflation channel of the air bag, thereby sealing the air in all parts of the inflatable body 10. In the inflatable cavity 12, when the inflatable body 10 includes a plurality of inflatable units 11, a plurality of inflatable valves 20 are correspondingly provided in each of the inflatable units 11 to respectively seal air in each inflatable unit 11. In particular, the first sealing film 21 is overlapped and adhered to the first air chamber layer 101 , and the second sealing film 22 is overlapped and adhered to the second air chamber layer 102 . When inflating the inflatable body 10 , air is guided into the inflation channel 24 formed between the first sealing membrane 21 and the second sealing membrane 22 . When the air bag is inflated, the first sealing film 21 and the second sealing film 22 are bonded to each other to seal the inflation channel 24 of the air bag. In addition, the air pressure in the air bag acts on the two sealing films 21 and 22 , so as to ensure that the two sealing films 21 and 22 are closely bonded to prevent air from leaking out from the air valve 20 . That is to say, the gas valve is a one-way valve, which only allows gas to enter the inflatable body 10 and prevents gas from seeping back out.

The formation of the inflation channel 24 of the inflation valve 20 can be realized by setting a barrier device between the two sealing films 21 and 22, when the two sealing films 21 and 22 are combined with the two air chamber layers 101 and When 102 is heat-sealed, because of the setting of the barrier device, the two sealing films 21 and 22 will not be completely heat-sealed together, thereby forming the inflation channel 24 . In a specific example, the barrier means may be high temperature resistant ink.

As shown in Figure 21 to Figure 23B, it is an air bag device according to another embodiment of the present utility model, which mainly shows the structure of another inflation valve 20A, and the inflation valve 20A is a double check valve, with A double sealing effect is provided to the air bag. Wherein the inflation valve 20A includes a first sealing film 21A, a second sealing film 22A and a non-return sealing film 23A.

The first sealing film 21A and the second sealing film 22A overlap between the first air chamber layer 101A and the second air chamber layer 102A of the inflatable unit 11A. The first sealing film 21A and the second sealing film 22A are two thin layers of flexible films made of plastic that overlap each other. Preferably, the first sealing film 21A and the second sealing film 22A are the same two-layer film.

Each of the first sealing membrane 21A and the second sealing membrane 22A has a proximal edge extending to the inlet of the inflation valve 20A of the inflation unit 11A, and a distal edge extending to the inflation unit. internal. Preferably, borders of near and far edges of the first sealing film 21A and the second sealing film 22A adjoin each other.

In this embodiment, the near edge of the first sealing film 21A is bonded to the first air chamber layer 101A. The near edge of the second sealing film 22A is bonded to the second air chamber layer 102A.

The non-return sealing film 23A overlaps the proximal ends of the first sealing film 21A and the second sealing film 22A to form an air-filled gap between the first sealing film 21A and the non-return sealing film 23A. channel 24A, and a non-return channel 25A is formed between the non-return sealing film 23A and the second sealing film 22A.

The inflation channel 24A is arranged to fill the inflation chamber 12A with air to fill the inflation unit 11A until the air pressure in the inflation chamber 12A makes the first sealing film 21A and the second sealing membrane 21A The distal ends of the two sealing membranes 22A overlap and seal to close the inflation channel 24A. According to this preferred embodiment, when gas leaks from between the distal ends of the first sealing film 21A and the second sealing film 22A, the air in the inflatable cavity 12 is guided into the stop. back to the channel 25A to generate supplementary air pressure to further seal the inflation channel 24A to compensate for the lack of sealing effect of the first sealing film 21A and the second sealing film 22A.

The inflation channel 24A has two open ends, one of which is near the open end and is formed near the edge of the first sealing film 21A and the non-return sealing film 23A. The other distal open end extends to the distal edges of the first sealing film 21A and the second sealing film 22A, so as to communicate with the air-filled cavity 12A. Compressed air may be directed into the plenum chamber 12A through the plenum passage 24A.

It is worth mentioning that when the inflatable unit 11A is filled with air, the air pressure in the inflatable cavity 12A exerts pressure on the first sealing film 21A and the second sealing film 22A, thereby sealing the first sealing film. membrane 21A and the second sealing membrane 22A distal edge, and seals the distal open end of the inflation channel 24A. In addition, the distal ends of the first sealing film 21A and the second sealing film 22A are sealed together due to surface tension.

The non-return sealing film 23A is a thin flexible film made of plastic. Preferably, the non-return sealing film 23A, the first sealing film 21A and the second sealing film 22A are polyethylene (PE) films. In addition, the thickness of each of the first air chamber layer 101A and the second air chamber layer 102A is greater than the thickness of each of the first sealing film 21A, the second sealing film 22A and the non-return sealing film 23A.

According to a preferred embodiment of the present utility model, the length of the non-return sealing film 23A is less than the length of each of the first sealing film 21A and the second sealing film 22A, so that when the non-return sealing film 23A overlaps the When referring to the proximal ends of the first sealing film 21A and the second sealing film 22A, the distal ends of the first sealing film 21A and the second sealing film 22A overlap together. It is worth mentioning that the length of the non-return sealing film 23A is defined as the distance between the near edge and the far edge of the non-return sealing film 23A. The length of each of the first sealing film 21A and the second sealing film 22A is defined as the distance between the near edge and the far edge of the first sealing film 21A and the second sealing film 22A.

Correspondingly, the near edges of the first sealing film 21A and the second sealing film 22A are adjacent to the near edges of the non-return sealing film 23A. In addition, the proximal edge of the non-return sealing film 23A is bonded to the proximal edge of the second sealing film 22A.

The check channel 25A is formed between the check seal film 23A and the second seal film 22A, wherein the check channel 25A has an open end facing the inflatable cavity 12A and a closed end facing the gas valve. Open your mouth. In other words, the proximal end of the non-return channel 25A is the closed end and the distal end of the non-return channel 25A is the open end.

Correspondingly, when air is filled into the non-return passage 25A at the open end, the non-return passage 25A is filled with air to generate a supplementary air pressure, thereby further sealing the first sealing film 21A and the second sealing film. The inflatable channels 24A between the membranes 22A.

It is worth mentioning that when the inflation chamber 12A is inflated through the inflation passage 24A, the air flow direction in the inflation passage 24A is opposite to the air flow direction in the non-return passage 25A. Therefore, air does not fill the non-return passage 25A. When air leaks from the inflatable chamber 12A back to the non-return passage 25A, the air enters the non-return passage 25A to generate supplementary air pressure to further seal the inflatable passage 24A, thereby preventing air leakage. It is worth mentioning that the leaked air will flow from the far open end of the inflation channel 24A to the far open end of the non-return channel 25A before leaking from the near open end of the inflation channel 24A, thereby avoiding air leakage . In addition, the non-return sealing film 23A and the first sealing film 21A are sealed together due to surface tension to seal the inflation channel 24A.

In order to form the inflation valve 20A in the inflation unit 11A, the inflation valve 20A also includes a first sealing joint 201 to connect the first air chamber layer 101A with the first air chamber layer 101A at the valve opening of the inflation unit 11A. The first sealing film 21A is bonded together, and a second sealing joint 202 is used to seal the second air chamber layer 102A, the non-return sealing film 23A and the air valve opening of the inflatable unit 11A. The second sealing films 22A are bonded together.

Correspondingly, the proximal edge of the first sealing film 21A is bonded to the first air chamber layer 101A through the first sealing joint 201 . The second air chamber layer 102A is glued together with the near edge of the second sealing film 22A, the near edge of the non-return sealing film 23A through the second sealing joint 202A. Preferably, two spaced apart sealing joints 201A are used to bond the first air chamber layer 101A and the first sealing film 21A, and two mutually spaced second sealing joints 202A are used to bond the second air chamber layer 101A to the first sealing film 21A. The air chamber layer 102A, the non-return sealing film 23A and the second sealing film 22A. It is worth mentioning that the first sealing joint 201A and the second sealing joint 202A may be heat seal lines, or other shapes such as crescent-shaped heat seals. In other words, the near edge of the first sealing film 21A is heat-sealed with the first air chamber layer 101A through the sealing joint 201A. The second air chamber layer 102A is heat-sealed to the near edge of the second sealing film 22A, and the near edge of the non-return sealing film 22 through the second sealing joint 202A.

In order to maintain a space between the first sealing film 21A and the non-return sealing film 23A after the heat sealing process, the inflation valve 20A further includes a first heat-resistant material 26A formed on the Between the first sealing film 21A and the non-return sealing film 23A to ensure the formation of the inflation channel 24A. The first heat-resistant material 26A is used to prevent the first sealing film 21A and the non-return sealing film 23A from completely sticking together after the heat sealing process.

Specifically, the first heat-resistant material 26A is arranged on the near edge of the first sealing film 21A and the non-return sealing film 23A and at the opening of the air valve of the inflation unit 11A, so as to ensure that the inflation The proximal end of channel 24A is open.

Similarly, in order to keep a space between the second sealing film 22A and the non-return sealing film 23A after the heat sealing process, the inflation valve 20A also includes a second heat-resistant material 27A, which Formed between the second sealing film 22A and the non-return sealing film 23A to ensure the formation of the non-return passage 25A.

Specifically, the second heat-resistant material 27A is disposed on the distal edge portions of the second sealing film 22A and the non-return sealing film 23A, so as to ensure that the distal end of the non-return channel 25A is in an open state. It is worth mentioning that the proximal end of the non-return channel 25A is closed by the second sealing joint 202 .

According to this preferred embodiment, the first heat-resistant material 26A and the second heat-resistant material 27A are two heat-resistant layers, which are coated on the predetermined positions on the respective corresponding films to prevent The media is glued together. The first heat-resistant object 26A extends on the proximal side of the non-return sealing film 23A and faces the first sealing film 21A. The second heat-resistant object 27A extends on the opposite side of the far end of the non-return sealing film 23A, and faces the second sealing film 22A, wherein the second heat-resistant object 27A is not arranged on the non-return sealing film 23A. The opposite side of the proximal end of the sealing membrane 23A is back sealed, so that the proximal end of the non-return channel 25A can be closed by the second sealing joint 202A. It is worth mentioning that the second heat-resistant material 27A not only prevents the non-return sealing film 23A from adhering to the second sealing film 22A, but also ensures that the distal end of the non-return channel 25A is in the In the open state, the interaction between the non-return sealing film 23A and the first sealing film 21A is strengthened, thereby closing the inflation channel 24A due to surface tension.

The inflation valve 20A also includes two lateral sealing joints 203A, which are two third sealing joints to bond the first sealing membrane 21A and the non-return sealing membrane 23A to form the inflation channel 24A. side wall. The width of the inflation channel 24A is bounded by the lateral sealing joint 203A. Specifically, the two laterally sealed joints 203A are two inclined heat-sealing lines, so that the width of the inflation channel 24A gradually decreases from the opening of the air valve to each of the inflation chambers. In other words, the near open end of the inflation passage 24A is a larger open end which communicates with the valve opening, and the far open end of the inflation passage 24A is a tapered open end and connects with the air valve opening. The gas chamber 12A communicates. The tapered inflation channel 24A further prevents air from leaking from the inflation chamber 12A to the air valve opening.

Preferably, said lateral sealing joint 203A extends from the proximal edge to the distal edge of said first sealing membrane 21A and said second sealing membrane 22A. Therefore, the lateral sealing joint 203A is located at the proximal end portions of the first sealing membrane 21A and the second sealing membrane 22A and the non-return sealing membrane 23A is bonded together. The lateral sealing joint 203A is located at the distal end portions of the first sealing film 21A and the second sealing film 22A and is glued together with the first sealing film 21A and the second sealing film 22A.

Correspondingly, in order to inflate the inflatable unit 11A, the prong of the pump is inserted into the inflatable port 13A to inflate the compressed air into the inflatable channel 24A, wherein the inflation direction of the air is from the near open end of the inflatable channel 24A to the far open end. Thus the inflation unit 11A starts to inflate. The air pressure of the air-filled cavity 12A is increased to expand the first air chamber layer 101A and the second air chamber layer 102A. At the same time, the air pressure acts on the first sealing film 21A and the second sealing film 22A, especially on the distal ends of the first sealing film 21A and the second sealing film 22A. When the inflatable unit 11A is completely filled with air, that is, after reaching the maximum filling volume, the air pressure in the inflatable cavity 12A is sufficient to seal the distal ends of the first sealing film 21A and the second sealing film 22A, so that The distal open end of the inflation channel 24A is automatically sealed. At this moment, the prong of the pump is pulled away from the charging port 13A.

When the distal ends of the first sealing film 21A and the second sealing film 22A are not completely sealed together, the air in the inflation cavity 12A may leak into the inflation channel 24A. In order to avoid air leakage into the inflation channel 24A, the non-return sealing film 23A is sealed with the first sealing film 21A to seal the far open end of the inflation channel 24A. Specifically, the air intake direction of the non-return passage 25A is opposite to the inflation direction of the inflation passage 24A. In addition, when the open end of the non-return passage 25A is opened, the distal open end of the inflation passage 24A is closed. Therefore, air enters from the open end of the non-return passage 25A and remains in the non-return passage 25A.

The check passage 25A is filled with air such that supplemental air pressure is generated within the check passage 25A to further seal the inflation passage 24A. In particular, the distal open end of the inflation channel 24A between the first sealing membrane 21A and the non-return sealing membrane 23A is sealed. More specifically, the higher the supplementary air pressure in the non-return passage 25A, the better the sealing effect of the non-return sealing film 23A. In other words, when the air leaks from the inflatable chamber 12A to reduce the air pressure in the inflatable chamber 12A, the air enters the non-return passage 25A to increase the air pressure in the non-return passage 25A. Therefore, the total pressure of the inflation pressure, that is, the sum of the pressures of the inflation chamber 12A and the non-return passage 25A remains unchanged. In this way, the air entering the non-return passage 25A from the inflation chamber 12A will enter to strengthen the sealing effect of the inflation passage 24A.

Those skilled in the art should understand that the above description and the embodiments of the present invention shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of this utility model has been fully and effectively achieved. The functions and structural principles of the present utility model have been shown and explained in the embodiments, and the implementation of the present utility model can have any deformation or modification without departing from the principle.

Claims (29)

1. a multiple field air-packing device, it is characterized in that, comprise the two-layer or multilayer gas flush packaging main body of superimposedly arranging, be positioned at the container cavity of described gas flush packaging main body formation for storing article to be packaged of inner side, the described gas flush packaging main body in outside and the described gas flush packaging main body of inner side are all inflatable structures, thus strengthen the cushion characteristic of described multiple field air-packing device.

2. multiple field air-packing device as claimed in claim 1, wherein two-layer or multilayer gas flush packaging main body comprises the described gas flush packaging main body of 2-20 layer.

3. multiple field air-packing device as claimed in claim 1, wherein two-layer or multilayer gas flush packaging main body comprises internal layer gas flush packaging main body and outer gas flush packaging main body, described internal layer gas flush packaging main body forms described container cavity, and is arranged in described outer gas flush packaging main body.

4. multiple field air-packing device as claimed in claim 3, wherein said internal layer gas flush packaging main body and described outer gas flush packaging main body are fixed together by heat-sealing or bonding way.

5. multiple field air-packing device as claimed in claim 4, wherein said internal layer gas flush packaging main body and described outer gas flush packaging main body superposed arrange or arrange with staggering to form triangle buffer structure at corner.

6. multiple field air-packing device as claimed in claim 3, wherein said internal layer gas flush packaging main body is connected integratedly with described outer gas flush packaging main body, and is formed by an inflatable bodies.

7. multiple field air-packing device as claimed in claim 6, wherein said inflatable bodies comprises multiple inflation unit and the one or more partitioning slot for separating adjacent two described inflation unit, wherein each inflation unit forms multiple sub-inflation unit be connected by multiple bending seam, and multiple described sub-inflation unit is respectively used to form described internal layer gas flush packaging main body and described outer gas flush packaging main body.

8. multiple field air-packing device as claimed in claim 7, also comprise one or more connecting portion, described internal layer gas flush packaging main body is connected by described connecting portion integratedly with described outer gas flush packaging main body, and connecting portion described in each is formed between the described bending seam of two row.

9. multiple field air-packing device as claimed in claim 7, wherein said internal layer gas flush packaging main body also comprises one or more folding part, thus after folding, described folding part makes the corner location of described internal layer gas flush packaging main body be approximate right angle.

10. multiple field air-packing device as claimed in claim 9, wherein said folding part reduces charge air by exhaust seam.

11. multiple field air-packing devices as claimed in claim 9, wherein said folding part is not charging portion.

12. as the multiple field air-packing device as described in arbitrary in claim 7 to 9, wherein said internal layer gas flush packaging main body and described outer gas flush packaging main body can select to have the different described sub-inflation unit of diameter separately, or the described sub-inflation unit that diameter is identical.

13. multiple field air-packing devices as claimed in claim 12, the sidepiece of wherein said internal layer gas flush packaging main body has the sub-inflation unit of one or more major diameter.

14. multiple field air-packing devices as claimed in claim 12, wherein said internal layer gas flush packaging main body also there is inseam, be located between at least one first air chamber of sidepiece and at least one second air chamber.

15. as the multiple field air-packing device as described in arbitrary in claim 7 to 9, the described sub-inflation unit of wherein said internal layer/outer gas flush packaging main body also forms multiple points of inflation unit further by sub-partitioning slot, and its diameter is less than the diameter of the described sub-inflation unit of described skin/internal layer gas flush packaging main body.

16. as the multiple field air-packing device as described in arbitrary in claim 7 to 9, wherein said partitioning slot produces right angle or inclination or curvilinear turnover at the connecting portion of described internal layer and outer gas flush packaging main body, thus forces superimposed described sub-inflation unit to produce staggered arrangement.

17. as the multiple field air-packing device as described in arbitrary in claim 7-9, wherein said inflatable bodies is formed through heat-sealing and folding technology by the first air chamber layer and the second air chamber layer, described inflatable bodies forms inflation inlet and main channel, and be provided with charge valve in each inflation unit, air enters described main channel from described inflation inlet, and enters inflation unit described in each from described main channel via described charge valve.

18. multiple field air-packing devices as claimed in claim 17, wherein said charge valve comprises two valve films, its respectively with described first air chamber layer and the described second air chamber layer heat-sealing of described inflatable bodies, a free air diffuser is formed between described two valve films, after being inflated to described inflation unit by described free air diffuser, the inside face automatic absorbing of described two valve films sticks together, to prevent the gas entering described inflation unit from described free air diffuser reverse osmosis.

19. multiple field air-packing devices as claimed in claim 17, wherein said charge valve is self binding film non return valve, it comprises one first valve film, one second valve film, with a non-return diaphragm seal, described first valve film and described non-return diaphragm seal are positioned at skin, described second valve film is between described first valve film and described non-return diaphragm seal, a free air diffuser is formed between described first valve film and described second valve film, a check cavity is formed between described second valve film and described non-return diaphragm seal, when via described main channel by described free air diffuser after insufflation gas in described inflation unit, described first valve film, the inside face automatic absorbing of described second valve film and described non-return diaphragm seal sticks together, to stop the gas in described inflation unit from described free air diffuser reverse osmosis, and can optionally enter described check cavity when gas returns, and the gas entering described check cavity can produce pressure effect to described second valve film, thus close described free air diffuser further, thus prevent gas reverse osmosis.

20. 1 kinds of multiple field air-packing devices, is characterized in that, comprising:

One internal layer gas flush packaging main body, described internal layer gas flush packaging main body comprises multiple internal layer inflation unit, and forms the container cavity for holding article to be packaged;

At least one outer gas flush packaging main body, wherein said outer gas flush packaging main body comprises multiple outer inflation unit, the described internal layer inflation unit of wherein said internal layer gas flush packaging main body and the described outer inflation unit of described outer gas flush packaging main body are superimposedly arranged respectively, thus form multi-layer air buffer structure.

21. multiple field air-packing devices as claimed in claim 20, the described internal layer inflation unit of wherein said internal layer gas flush packaging main body forms the interior downside wall be connected, interior front side wall and interior rear wall, described outer inflation unit forms the outer front side wall and outside back wall that are connected, and described interior front side wall and described interior rear wall form iterative structure with described outer front side wall and described outside back wall respectively.

22. multiple field air-packing devices as claimed in claim 21, wherein said outer gas flush packaging main body also comprises the outer diapire formed by described outer inflation unit, and the described outer inflation unit of described outer diapire and the described internal layer inflation unit of described interior downside wall are that lamination ground is arranged.

23. multiple field air-packing devices as claimed in claim 22, wherein said internal layer gas flush packaging main body also comprises the internal layer left side wall and internal layer right side wall that are formed by described internal layer inflation unit, and described outer gas flush packaging main body also comprises the outer left side wall and outer right side wall that are formed by described outer inflation unit.

24. multiple field air-packing devices as claimed in claim 23, wherein said internal layer gas flush packaging main body or described outer gas flush packaging main body also comprise the side wall formed by described internal layer inflation unit or described outer inflation unit.

25. as the multiple field air-packing device as described in arbitrary in claim 20-24, and wherein said internal layer gas flush packaging main body and described outer gas flush packaging main body are fixed together by heat-sealing or bonding way.

26. as the multiple field air-packing device as described in arbitrary in claim 20-24, wherein said internal layer gas flush packaging main body is connected integratedly with described outer gas flush packaging main body, and formed by an inflatable bodies, wherein said inflatable bodies comprises multiple inflation unit of being arranged side by side and the one or more partitioning slot for separating adjacent two described inflation unit, inflation unit described in each is separated into the multiple sub-inflation unit of connection via bending seam, described sub-inflation unit forms the described internal layer inflation unit and described outer inflation unit of alongst arranging.

27. multiple field air-packing devices as claimed in claim 26, wherein internal layer inflation unit described in each is identical with described outer inflation unit diameter, or has the different air chamber unit of diameter.

28. multiple field air-packing devices as claimed in claim 26, the described sub-inflation unit wherein forming described internal layer inflation unit or described outer inflation unit is further advanced by sub-partitioning slot and produces multiple points of inflation unit, thus described multiple field air-packing device is formed multilayer buffer structure that each layer has different buffer capacity.

29. multiple field air-packing devices as claimed in claim 26, wherein said inflatable bodies is formed through heat-sealing and folding technology by the first air chamber layer and the second air chamber layer, described inflatable bodies forms inflation inlet and main channel, and be provided with unidirectional charge valve that is two-layer or three-layer thin-film formation in each inflation unit, air enters described main channel from described inflation inlet, and enters inflation unit described in each from described main channel via described charge valve.