CN216660941U

CN216660941U - Double-layer thermoplastic packaging bag

Info

Publication number: CN216660941U
Application number: CN202220226880.4U
Authority: CN
Inventors: 陈守良; 陈之林
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-06-03
Anticipated expiration: 2032-01-27

Abstract

The utility model discloses a double-layer thermoplastic packaging bag which comprises an inner layer thermoplastic bag and an outer layer thermoplastic bag, wherein the inner layer thermoplastic bag is sleeved in the outer layer thermoplastic bag, the lower ends of the inner layer thermoplastic bag and the outer layer thermoplastic bag are provided with thermoplastic seals at the same position, the inner layer thermoplastic bag is used for vacuum storage of articles, the inner layer thermoplastic bag is vacuumized after being filled with the articles, the inner layer thermoplastic bag and the outer layer thermoplastic bag are provided with the thermoplastic seals at the same position, and the outer layer thermoplastic bag is plastically packaged on the inner layer thermoplastic bag. The state of the inner and outer thermoplastic bags filled with air can fix and prevent collision of articles, greatly reduce the packaging cost, facilitate the transportation of the articles, increase the sales range and sales volume of the articles, and have higher use value and application prospect.

Description

Double-layer thermoplastic packaging bag

Technical Field

The utility model relates to the technical field of packaging bags, in particular to a double-layer thermoplastic packaging bag.

Background

The packaging bag is a common daily product in daily life, and is a bag for packaging various products, so that goods are convenient to transport and easy to store in a production flow process, and particularly fragile articles such as potted flowers and glass are easy to store.

However, most of the existing packaging bags in the market do not conform to the shapes of articles, the articles are easy to shake and scratched by hard objects, and the articles collide in the transportation process to cause internal damage, so that the transportation range of the articles is greatly reduced, the long-distance transportation is inconvenient, and the sales volume and the sales range of the articles are directly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-layer thermoplastic packaging bag, which solves the problems in the prior art, facilitates long-distance transportation of articles, and increases the sales range and sales volume of the articles.

In order to achieve the purpose, the utility model provides the following scheme:

the utility model provides a double-layer thermoplastic packaging bag which comprises an inner layer thermoplastic bag and an outer layer thermoplastic bag, wherein the inner layer thermoplastic bag is sleeved in the outer layer thermoplastic bag, the lower ends of the inner layer thermoplastic bag and the outer layer thermoplastic bag are provided with thermoplastic seals at the same position, the inner layer thermoplastic bag is used for vacuum storage of objects, the inner layer thermoplastic bag is vacuumized after being filled with the objects, the thermoplastic seals are arranged at the same position at the upper ends of the inner layer thermoplastic bag and the outer layer thermoplastic bag, and an inflating nozzle is arranged between the inner layer thermoplastic bag and the outer layer thermoplastic bag and used for inflating an inflating cavity between the outer layer thermoplastic bag and the inner layer thermoplastic bag.

Preferably, the center line of the outer thermoplastic bag coincides with the center line of the inner thermoplastic bag, and both sides of the inner thermoplastic bag and the outer thermoplastic bag are symmetrically folded towards the center to form a V shape.

Preferably, the contour edges of the outer thermoplastic bag are arranged outside the inner thermoplastic bag at equal intervals.

Preferably, the V-shaped folding angles of the outer thermoplastic bag and the inner thermoplastic bag are overlapped, and the V-shaped edge of the outer thermoplastic bag is longer than the V-shaped edge of the inner thermoplastic bag.

Preferably, the apexes of two opposite V-shaped folds coincide.

Preferably, the total length of each V-fold of the inner thermoplastic bag is no more than one quarter of the port perimeter of the inner thermoplastic bag and the total length of each V-fold of the outer thermoplastic bag is no more than one quarter of the port perimeter of the outer thermoplastic bag.

Preferably, said thermoplastic seal at the lower end is a straight line and parallel to the lower end opening of said inner thermoplastic bag or said outer thermoplastic bag.

Preferably, the inflation nozzle is pasted on the upper opening of the inner layer thermoplastic bag or the outer layer thermoplastic bag, the inflation nozzle penetrates through the thermoplastic seal at the upper end, and the inflation nozzle is made of non-thermal deformation materials and provided with a one-way valve.

Preferably, the thermoplastic seal at the lower end is of a straight, Y, X or more lines of central radiation type.

Preferably, the cross-sectional perimeter of the outer thermoplastic bag is not less than the cross-sectional perimeter of the inner thermoplastic bag, and the thickness of the outer thermoplastic bag is not less than the thickness of the inner thermoplastic bag.

Compared with the prior art, the utility model achieves the following technical effects:

the state of the inner and outer thermoplastic bags filled with air can fix and prevent collision of articles, greatly reduce the packaging cost, facilitate long-distance transportation of the articles, increase the sales range and sales volume of the articles, and have higher use value and application prospect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a first construction of a two-layer thermoplastic package of the present invention;

FIG. 2 is a schematic view of the bottom of the double-layer thermoplastic packaging bag after being opened;

FIG. 3 is a schematic cross-sectional view of a two-layer thermoplastic package of the present invention;

FIG. 4 is a schematic cross-sectional view of a two-layer thermoplastic package of the present invention;

FIG. 5 is a schematic cross-sectional view III of a two-layer thermoplastic package of the present invention;

FIG. 6 is a schematic view of a second construction of the double layer thermoplastic package of the present invention;

FIG. 7 is a schematic view of a third construction of the dual layer thermoplastic package of the present invention;

FIG. 8 is a schematic view of a fourth construction of the dual layer thermoplastic package of the present invention;

wherein: 1-outer thermoplastic bag, 2-inner thermoplastic bag, 3-thermoplastic seal, 4-V-shaped folded angle, 5-inflation cavity and 6-inflation nozzle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

The utility model aims to provide a double-layer thermoplastic packaging bag, which aims to solve the problems in the prior art, facilitate the transportation of articles and increase the sales range and sales volume of the articles.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1 to 8: the embodiment provides a double-deck thermoplastic packaging bag, including inlayer thermoplastic bag 2 and outer thermoplastic bag 1, inlayer thermoplastic bag 2 cover is located in outer thermoplastic bag 1, the lower extreme of inlayer thermoplastic bag 2 and outer thermoplastic bag 1 is provided with thermoplastic seal in same department, inlayer thermoplastic bag 2 is used for vacuum storage article, inlayer thermoplastic bag 2 packs into behind the article evacuation and sets up thermoplastic seal with inlayer thermoplastic bag 2 and outer thermoplastic bag 1's upper end in same department, be provided with charging connector 6 between inlayer thermoplastic bag 2 and the outer thermoplastic bag 1, an inflation cavity 5 for between outer thermoplastic bag 1 and inlayer thermoplastic bag 2 inflates.

The center line of the outer thermoplastic bag 1 coincides with the center line of the inner thermoplastic bag 2, and the two sides of the inner thermoplastic bag 2 and the outer thermoplastic bag 1 are symmetrically folded towards the center to form a V shape, thereby being convenient for production and beautiful. In this embodiment, there are various gathering ways of the outer thermoplastic bag 1 and the inner thermoplastic bag 2, the first is as shown in fig. 3, the V-shaped folding angle 4 of the outer thermoplastic bag 1 and the inner thermoplastic bag 2 coincides, the V-shaped edge of the outer thermoplastic bag 1 is longer than the V-shaped edge of the inner thermoplastic bag 2, and the specific value is influenced by the sizes of the inner and outer bags. Second, as shown in FIG. 4, the contour edges of the outer thermoplastic bag 1 are equally spaced from the inner thermoplastic bag 2. Thirdly, as shown in fig. 5, the two opposite V-shaped folds 4 have their apexes coincident, the inner bag is in a fully folded state, i.e., the V-shaped fold is 1/4 of the total circumference, and the outer bag may be in an incompletely folded state. The total length of each V-shaped folding angle 4 of the inner layer thermoplastic bag 2 is not more than one fourth of the perimeter of the port of the inner layer thermoplastic bag 2, the total length of each V-shaped folding angle 4 of the outer layer thermoplastic bag 1 is not more than one fourth of the perimeter of the port of the outer layer thermoplastic bag 1, and overlapping and material waste are avoided under the condition that the space layout at the lower end is reasonable.

The thermoplastic seal 3 at the lower end is a straight line and is parallel to the lower port of the inner thermoplastic bag 2 or the outer thermoplastic bag 1 after the bag body is folded in half or the plastic package is folded in multiple layers, thereby being convenient for production and being beautiful. As shown in figure 6, the structure is that the thermoplastic seal at the lower end is a straight plastic seal after the port of the bag body is aligned, the bottom is sealed after simple intussusception, and the structure and the processing are simple. As shown in figure 7, the outer thermoplastic bag 1 is formed by two layers of thermoplastic film and sealed on both sides by thermoplastic sealing, and then directly sealed with the inner thermoplastic bag 2 by thermoplastic sealing at the bottom to form a structure convenient for operation. In addition, as shown in fig. 8, the outer thermoplastic bag 1 and the inner thermoplastic bag 2 are respectively composed of two layers of thermoplastic films, three sides are directly sealed in a plastic package mode to form a bag shape, and the two inflation cavities 5 are respectively provided with an inflation nozzle 6, so that the processing is very convenient.

The inflating nozzle 6 is pasted on the upper opening of the inner-layer thermoplastic bag or the outer-layer thermoplastic bag, the inflating nozzle 6 penetrates through the thermoplastic seal 3 at the upper end, the inflating nozzle 6 is made of a non-thermal deformation material, the inflating nozzle 6 is closed when the thermoplastic seal can be avoided, a one-way valve is arranged on the inflating nozzle 6, automatic sealing after inflation can be achieved, and the inflating valve is simple in operation.

The thermoplastic seal 3 at the lower end is in a straight line shape, a Y shape, an X shape or a central radiation type with more than four lines, the gathering forms of the thermoplastic seal 3 at the lower end are various, and the form of the seal can be specifically selected according to transported articles. The section perimeter of outer thermoplastic bag 1 is not less than the section perimeter of inner thermoplastic bag 2, and the same material can be selected to the inlayer material, and more preferably the thickness of outer thermoplastic bag 1 is not less than the thickness of inner thermoplastic bag 2 and for tear-resistant material, like PA nylon film, avoids outer thermoplastic bag 1 easily to be broken by the slip.

The double-deck thermoplastic packaging bag of this embodiment utilizes behind the inflation cavity 5 filling air between inlayer thermoplastic bag 2 and outer thermoplastic bag 1, plays the effect of fixing article both ends and anticreep rocking and collision, and greatly reduced packaging cost makes article be convenient for long-distance transport, increases the sales range and the sales volume of article, has higher use value and application prospect.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above description of the embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.

Claims

1. The utility model provides a wrapping bag is moulded to double-deck heat which characterized in that: including inlayer thermoplastic bag and outer thermoplastic bag, inlayer thermoplastic bag cover is located in the outer thermoplastic bag, inlayer thermoplastic bag with the lower extreme of outer thermoplastic bag is provided with in same department thermoplastically seals, the inlayer thermoplastic bag is used for vacuum storage article, the inlayer thermoplastic bag is packed into evacuation behind the article and with inlayer thermoplastic bag with the upper end of outer thermoplastic bag sets up in same department thermoplastically seals, the inlayer thermoplastic bag with be provided with the charging connector between the outer thermoplastic bag, it is right to be used for outer thermoplastic bag with inflation cavity between the inlayer thermoplastic bag inflates.

2. The double layer thermoplastic package of claim 1, wherein: the central line of outer thermoplastic bag with the central line coincidence of inlayer thermoplastic bag, inlayer thermoplastic bag with the both sides of outer thermoplastic bag are all to central symmetry folding V type.

3. The double layer thermoplastic package of claim 2, wherein: the outline edges of the outer thermoplastic bag are arranged outside the inner thermoplastic bag at equal intervals.

4. The double layer thermoplastic package of claim 2, wherein: the outer layer thermoplastic bag and the inner layer thermoplastic bag are overlapped in V-shaped folding angle, and the V-shaped edge of the outer layer thermoplastic bag is longer than the V-shaped edge of the inner layer thermoplastic bag.

5. The double layer thermoplastic package of claim 4, wherein: the vertexes of two opposite V-shaped folding angles are coincident.

6. The double layer thermoplastic package of claim 2, wherein: the total length of each V-fold of the inner thermoplastic bag is no more than one quarter of the port perimeter of the inner thermoplastic bag and the total length of each V-fold of the outer thermoplastic bag is no more than one quarter of the port perimeter of the outer thermoplastic bag.

7. The double layer thermoplastic package of claim 1, wherein: the thermoplastic seal at the lower end is a straight line and is parallel to the lower port of the inner thermoplastic bag or the outer thermoplastic bag.

8. The double layer thermoplastic package of claim 1, wherein: the inflation nozzle is pasted in the inlayer thermoplastic bag or outer thermoplastic bag's upper port, the inflation nozzle runs through the upper end the thermoplastic seal, the material of inflation nozzle is non-heat altered shape material and is provided with the check valve.

9. The dual layer thermoplastic package of claim 1, wherein: the thermoplastic seal at the lower end is in a straight line shape, a Y shape, an X shape or a central radiation type with more than four lines.

10. The double layer thermoplastic package of claim 1, wherein: the cross section perimeter of the outer thermoplastic bag is not less than the cross section perimeter of the inner thermoplastic bag, and the thickness of the outer thermoplastic bag is not less than the thickness of the inner thermoplastic bag.