CN204548903U - Inlet non return check valve continuously can tearing pneumatic die cushion - Google Patents

Abstract

The utility model discloses a continuous tearable air pillow with a one-way check valve, which comprises an inflatable plastic interlayer film provided with dividing lines and multiple sets of heat sealing lines; each set of heat sealing lines includes two; Between the two heat-sealing lines of the group; the inflatable plastic sandwich film is a structure with multiple air-filled chambers formed by placing two wide plastic films on the surface layer and two narrow plastic films on the middle layer through heat sealing. The air-inflating chamber communicates with the general air-inflating channel through the self-adsorption one-way check valve formed by the two narrow plastic films; the sides of the same air-inflating chamber are composed of heat sealing lines belonging to the same group. After adopting the above technical scheme, air pillows of different sizes can be torn according to the needs of different gaps, and because the torn-off air pillows are continuous, there will be no position change, the anti-seismic effect is good, and any gap can be guaranteed to have a suitable size The air pillow is matched with it.

Description

One-way check valve continuous tearable air pillow

technical field

The utility model relates to the packaging field, in particular to a convenient and simple one-way check valve continuous tearable air pillow.

Background technique

Glass, electronic products, precision instruments and other products are vulnerable to damage caused by external vibrations and impacts during transportation. Therefore, it is necessary to wrap protective materials on the outer layer of these products to protect the products from shock, moisture, extrusion, Anti-shock, anti-friction and other functions. In the prior art, foam plastics formed of expanded polystyrene (EPS) and polyethylene foam (EPE) are usually used as materials for wrapping commodities. However, due to the large volume of foamed plastics after foam molding, the transportation cost is increased during use, and the foamed material is a typical "white pollution". After being discarded, it is not easy to degrade in the soil, and burning will cause Toxic gas, therefore, because of people's growing demand for environmental protection, the above-mentioned foaming materials are no longer suitable for use as protective materials for commodities.

In order to replace the above-mentioned foaming materials, a kind of inflatable packaging bag has appeared in recent years. The room is inflated, and after the inflation is completed, the valve is automatically locked, and the inflatable chamber forms an air column, which is wrapped in the outer layer of the product, and has a buffering effect on the external vibration and impact generated during transportation. Such as CN1903675A, this kind of inflatable bag is generally made up of two wide plastic films and two narrow plastic films, two wide plastic films are placed on the surface layer, two narrow plastic films are placed in the middle layer, and the two wide plastic films are sealed by heat sealing. The film forms an inflatable bag, and the two narrow plastic films are heat-sealed and bonded to the two wide plastic films by printing high-temperature resistant ink on the opposite surface. The printed ink part cannot be heat-sealed so that A one-way check valve that can be separated to form an air intake channel and bonded to form an airtight effect is formed. This kind of inflatable bag can be used as a shock absorber or filled between the product and the packing box, or to wrap the product, and can also be further folded and partially heat-sealed to form a packaging bag that can be directly placed on the outside of the product after inflation.

When the above-mentioned prior art is used as a shock absorber, the air cushion is often too large or too small. If the air cushion is too large, it will occupy too much packaging space, which not only wastes materials but also reduces the space for storing goods in the packaging. If the air cushion is too small, the shock absorption effect cannot be completed well; for this, there is another method of filling and using multiple small air cushions together, but when this method is used, the positional relationship between the small air cushions is sometimes inaccurate during transportation. There is a change, which leads to the small air cushion not being able to realize the shock absorption function well, and the goods suffer losses.

In view of this, the utility model is proposed.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a continuous tearable air pillow with a one-way check valve, which can fill the gap between the packaged object and the carton with a reasonable size without causing dislocation.

In order to solve the problems of the technologies described above, the basic idea of the technical solution adopted by the utility model is:

Continuous tearable air pillow with one-way check valve, including an inflatable plastic film with a dividing line and multiple sets of sealing lines; each set of sealing lines includes two; the dividing lines are set between two sealing lines in different groups between;

The inflatable plastic sandwich is a structure with two wide plastic films placed on the surface layer and two narrow plastic films placed in the middle layer and heat-sealed to form a structure with multiple air-filled chambers, each air-filled chamber passes through the two narrow plastic films. The self-adsorption one-way check valve formed by the film communicates with the main inflatable channel; the sides of the same inflatable chamber are composed of heat-sealing lines belonging to the same group.

In the above continuous tearable air pillow with one-way check valve, the dividing line is a linear structure in which short lines and continuous lines are alternately arranged on the same straight line.

In the continuous tearable air pillow of the one-way check valve, the dividing line does not intersect with the main inflation channel.

In the continuous tearable air pillow of the one-way check valve, a dividing line is provided between every two adjacent inflatable chambers.

The above-mentioned one-way check valve continuous tearable air pillow, each inflatable chamber has no less than two check valves communicating with the main inflation channel.

The above-mentioned one-way check valves are continuous tearable air pillows, and each inflation chamber has three check valves communicating with the main inflation passage.

In the above-mentioned one-way check valve continuous tearable air pillow, among the two narrow plastic films, the thickness of one narrow plastic film constituting the internal space barrier layer is the thickness of the other narrow plastic film constituting the external space barrier layer. 100%-135%.

In the continuous tearable air pillow of the one-way check valve, on the same dividing line, the length of the interrupted short line is greater than the length of the continuous line.

After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

1. According to the needs of different gaps, air pillows of different sizes can be torn off, and because the torn air pillows are continuous, there will be no position change, and the anti-seismic effect is good, ensuring that any gap can have an air pillow of a suitable size with it Cooperate;

2. There are more than two check valves connected to the main inflation channel on each inflatable chamber, which ensures that the inflatable chamber can be quickly filled with gas when inflated;

3. The length of the interrupted short line on the dividing line is longer than that of the continuous line, which can ensure that the air pillow can be torn apart along the dividing line.

Description of drawings

Fig. 1 is a structural schematic view of the continuous tearable air pillow of the utility model before inflating the one-way check valve.

FIG. 2 is an enlarged structural schematic diagram of part A in FIG. 1 .

Fig. 3 is a schematic diagram of the internal structure of the inflatable plastic film of the utility model.

Among the above-mentioned accompanying drawings, 1, inflatable chamber; 2, heat sealing line A; 3, heat sealing line B; 4, wide plastic film; 5, wide plastic film; 6, narrow plastic film; 7, narrow plastic film; Channel; 9, dividing line; 91, interrupting the short line; 11, one-way check valve.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further, to help understand the content of the utility model.

The utility model provides a continuous tearable air pillow with a one-way check valve. The air pillow is made of inflatable plastic film.

As shown in Fig. 1 and Fig. 3, the above-mentioned inflatable plastic sandwich film is two wide plastic films 4,5 placed on the surface layer, and two narrow plastic films 6,7 placed in the middle layer and formed by heat sealing with multiple air-filled The structure of the chamber 1, each air-filled chamber 1 communicates with the main air-filled channel 8 through the self-adsorption one-way check valve 11 formed by the two narrow plastic films 6,7. Among the two narrow plastic films 6, 7, the thickness of one narrow plastic film 7 constituting the inner space barrier layer is 100%-135% of the thickness of the other narrow plastic film 6 constituting the outer space barrier layer. When inflating, all the inflating chambers 1 can be inflated only by inflating the main inflating channel 8, which is convenient and quick. Gas passes between two narrow plastic films 6 and 7 and enters the wide plastic films 4 and 5 to form the inflatable chamber 1. Due to the mutual adsorption of the narrow plastic films 6 and 7, the air inlet is blocked, thereby realizing the function of the check valve. Function.

Fig. 1 is a schematic diagram of the structure of the air pillow of the present invention when it is not inflated. For the convenience of transportation, it is rolled on a reel (the structure of the air cushion on the reel is not shown). When in use, it can be inflated first and then torn or first torn and then inflated. The air pillow includes an inflatable plastic film with a dividing line 9 and multiple sets of heat-sealing lines; each set of heat-sealing lines includes two heat-sealing lines, one heat-sealing line A2 and one heat-sealing line B3; Lines (one heat sealing line A and one heat sealing line B). In this way, setting the dividing line 9 between the sides of adjacent inflatable chambers 1 close to each other will not cause air leakage in the inflatable chambers 1 . The parting line 9 is arranged between two sealing lines of different groups. The dividing line 9 does not intersect with the total inflation channel 8, which is beneficial to ensure that the gas will not leak from the total inflation channel 8 during inflation. A dividing line 9 is provided between every two adjacent inflatable chambers 1, so that each air pillow is set as a divisible unit, which ensures that suitable sized air pillows can be torn off for different gaps. pillow. The width of each air-filled chamber 1 is 6 to 12 cm, which is 9 cm in this embodiment. In order to ensure uniform and rapid inflation, no less than two check valves 11 are provided on each inflation chamber 1 to communicate with the main inflation passage 8 . The number of check valves 11 on each air chamber 1 can be adjusted according to the width of the air chamber 1 . Since the width of the inflatable chamber 1 is 9 cm in this embodiment, there are three check valves 11 on each inflatable chamber 1 communicated with the main inflation channel 8 to ensure a uniform and rapid inflation rate.

As shown in FIG. 2 , the dividing line 9 is a linear structure in which short broken lines 91 and continuous lines are alternately arranged on the same straight line. On the same dividing line 9 , the length of the short broken lines 91 is greater than that of the continuous line. In this way, when tearing along the dividing line 9, the broken short line 91 plays a guiding role to ensure that it will not deviate when tearing, and avoid the bad situation of tearing the inflatable chamber 1 and causing air leakage. The continuous line ensures that the adjacent air pillows are connected together, and it can also ensure that when the force is pulled along the width of the inflatable chamber 1, the unteared dividing line 9 can also withstand a relatively suitable pulling force, which avoids the need for this document. The unfavorable situation that the positional relationship of the small air pillows changes and deviates occurs when multiple small air pillows are filled and used together as described in the background art.

When the continuous tearable air pillow with one-way check valve of the utility model is in use, it can be continuously inflated at one time through a manual inflation device or an automatic inflation device. 9 Tear apart to fill the required space.

After adopting the above technical scheme, air pillows of different sizes can be torn according to the needs of different gaps, and because the torn-off air pillows are continuous, there will be no position change, the anti-seismic effect is good, and any gap can be guaranteed to have a suitable size The air pillow cooperates with it; each inflatable chamber has more than two check valves connected with the main inflation channel, ensuring that the inflatable chamber can be quickly filled with gas when inflated; the length of the interrupted short line on the dividing line is greater than that of the continuous The line can ensure that the air pillow can be torn along the dividing line.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the scope of protection of the present utility model.

Claims (8)

1. inlet non return check valve continuously can tearing pneumatic die cushion, it is characterized in that, comprises the inflating plastic feed collet film being provided with cut-off rule and many group hot threads; Often organize hot thread and comprise two; Described cut-off rule is arranged between two hot threads of different group;

Described inflating plastic feed collet film is that two wide plastic sheetings are placed in top layer, be placed in the structure with many plenum chambers of interlayer through heat-sealing formation with two narrow plastic sheetings, the attached inlet non return check valve of self-priming that every bar plenum chamber is formed by described two narrow plastic sheetings communicates with inflation overall channel; The side of same plenum chamber is made up of the hot thread belonged to group.

2. inlet non return check valve according to claim 1 continuously can tearing pneumatic die cushion, it is characterized in that, described cut-off rule is interrupt the linear structure that short-term and continuous lines alternately arrange on same straight line.

3. inlet non return check valve according to claim 1 continuously can tearing pneumatic die cushion, it is characterized in that, described cut-off rule is non-intersect with inflation overall channel.

4. inlet non return check valve according to claim 1 continuously can tearing pneumatic die cushion, it is characterized in that, is equipped with cut-off rule between every two adjacent plenum chambers.

5. inlet non return check valve according to claim 1 continuously can tearing pneumatic die cushion, it is characterized in that, every bar plenum chamber all has be no less than two non-return valves and communicate with described inflation overall channel.

6. inlet non return check valve according to claim 5 continuously can tearing pneumatic die cushion, it is characterized in that every bar plenum chamber all having three non-return valves communicate with described inflation overall channel.

7. inlet non return check valve according to claim 1 continuously can tearing pneumatic die cushion, it is characterized in that, in two described narrow plastic sheetings, the thickness forming the narrow plastic sheeting of a slice of inner space barrier layer is the 100%-135% of the narrow plastic film thickness of another sheet forming space outerpace barrier layer.

8. continuously can tearing pneumatic die cushion according to the arbitrary described inlet non return check valve of claim 1-7, it is characterized in that, on described same cut-off rule, the length interrupting short-term is greater than the length of continuous lines.