Novel aluminum foil composite packaging bag with multi-layer structure

Abstract

The utility model discloses a novel aluminum foil composite packaging bag with a multi-layer structure, which comprises a sealing edge, an outer-layer packaging bag is arranged on the inner side of the sealing edge, an inner-layer packaging bag is placed in the outer-layer packaging bag, a plurality of supporting strips which are arranged at equal intervals are fixed on the front surface and the rear surface of the inner-layer packaging bag, and the inner-layer packaging bag is arranged in the inner-layer packaging bag. An inflation branch pipe is fixed to the top end of the inner-layer packaging bag, and the top end of the inflation branch pipe penetrates through the inner-layer packaging bag and is inserted into the sealing edge. When the inner-layer packaging bag is filled with gas, the gas can enter the supporting gas path along the connecting gas holes, the supporting strips expand after the supporting gas path is filled with the gas, the expanded supporting strips support between the outer-layer packaging bag and the inner-layer packaging bag, and it is guaranteed that the outer-layer packaging bag is not in contact with the inner-layer packaging bag; the elasticity of the aluminum foil composite packaging bag is improved, it is guaranteed that when the outer-layer packaging bag is damaged, the inner-layer packaging bag is not directly damaged, and it is guaranteed that the aluminum foil composite packaging bag can be continuously used.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum foil composite packaging bags, in particular to a novel aluminum foil composite packaging bag with a multi-layer structure. Background Art

[0002] Composite packaging bags are made of two or more materials, which are combined together through one or more dry composite processes to form composite packaging with certain functions. They can generally be divided into a base layer, a functional layer and a heat-sealing layer. The base layer mainly plays the role of aesthetics, printing, and moisture resistance.

[0003] Aluminum foil composite packaging bags, also known as aluminum foil composite bags, are a type of composite packaging bags. Aluminum-plastic composite bags have the following characteristics: anti-static, anti-ultraviolet, moisture-proof, oxygen-proof, light-shielding, cold-resistant, oil-resistant, high-temperature-resistant, fresh-keeping, oxygen-proof and easy to seal. According to the bag type, they can be divided into: three-side sealing; self-supporting bags; self-supporting spout bags; special-shaped self-supporting bags, bag in box, special packaging bags, etc.

[0004] However, most aluminum foil composite packaging bags are single-layer structures. Once broken, they will fail instantly and cannot be used any more, and the packaged items cannot be further protected. Therefore, they do not meet the existing needs. We have proposed a new type of multi-layer aluminum foil composite packaging bag. Utility Model Content

[0005] The utility model aims to provide a novel multi-layer aluminum foil composite packaging bag to solve the problems that most of the aluminum foil composite packaging bags mentioned in the background technology are single-layer structures, which will fail instantly after being ruptured and cannot be used further, and the packaged articles cannot be further protected.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel multi-layer aluminum foil composite packaging bag, comprising a sealed edge, an outer packaging bag is arranged on the inner side of the sealed edge, an inner packaging bag is placed inside the outer packaging bag, a plurality of support bars arranged at equal intervals are fixed to the front and rear surfaces of the inner packaging bag, an inflation branch pipe is fixed to the top end of the inner packaging bag, and the top end of the inflation branch pipe passes through the inner packaging bag and is inserted into the sealed edge.

[0007] Preferably, the top end of the inflation branch pipe is fixedly connected to the inflation main pipe, the top end port of the inflation main pipe is flush with the edge of the outer packaging bag, and the bottom end of the inflation main pipe is fixed with a vortex tube.

[0008] Preferably, a vortex tube is fixed to the end of the inflation main pipe connected to the inflation branch pipe, and the other end of the vortex tube is fixed to the top of the inner packaging bag, and the vortex tube and the inflation main pipe are bent in an S shape.

[0009] Preferably, the inflation branch pipe, the vortex tube and the inflation main pipe are interconnected, and the end of the vortex tube connected to the inner packaging bag is connected to the interior of the inner packaging bag.

[0010] Preferably, a supporting air path is provided inside the supporting strip, and connecting air holes are provided on the front and rear surfaces of the inner packaging bag.

[0011] Preferably, both end portions of the supporting gas path are open and aligned with the connecting air holes, and the inner diameter of the supporting gas path is consistent with the aperture of the connecting air holes.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model uses an outer packaging bag to wrap the inner packaging bag, and the inner packaging bag is protected on the outside of the inner packaging bag. When the inner packaging bag is filled with gas, the gas will enter the supporting gas path along the connecting air holes. After the supporting gas path is filled with gas, the supporting bar expands. The expanded supporting bar supports between the outer packaging bag and the inner packaging bag, ensuring that the outer packaging bag and the inner packaging bag do not contact each other, increasing the elasticity of the aluminum foil composite packaging bag, and ensuring that when the outer packaging bag is damaged, the inner packaging bag will not be directly damaged, so that when the outer packaging bag is damaged, the inner packaging bag can continue to be used;

[0014] 2. When the utility model injects gas into the inflation main pipe through the end of the inflation main pipe that is flush with the edge of the outer packaging bag, a large amount of gas will directly enter the inner packaging bag from the inflation branch pipe to expand the inner packaging bag, and a small amount of gas will enter the inner packaging bag along the vortex tube. After the inner packaging bag expands to a certain extent, the gas inside the inner packaging bag will enter the vortex tube and return to the inner packaging bag again through the inflation branch pipe. The gas will form a vortex at the place where the inflation branch pipe, the vortex tube and the inflation main pipe are connected to each other, thereby preventing the gas from overflowing and realizing one-way inflation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the inner packaging bag of the utility model;

[0017] Figure 3 It is a cross-sectional view of the inner packaging bag of the utility model;

[0018] Figure 4 for Figure 3 A magnified view of the structure at center.

[0019] In the figure: 1. edge sealing; 2. outer packaging bag; 3. inner packaging bag; 4. inflation branch pipe; 5. vortex pipe; 6. inflation main pipe; 7. support bar; 8. connecting air hole; 9. support air path. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] like Figure 1 and Figure 2 As shown, a novel multi-layer aluminum foil composite packaging bag comprises an edge seal 1, an outer packaging bag 2 is arranged on the inner side of the edge seal 1, an inner packaging bag 3 is placed inside the outer packaging bag 2, a plurality of support bars 7 arranged at equal intervals are fixed to the front and rear surfaces of the inner packaging bag 3, an inflation branch pipe 4 is fixed to the top end of the inner packaging bag 3, the top end of the inflation branch pipe 4 passes through the inner packaging bag 3 and is inserted into the edge seal 1, the inner packaging bag 3 is wrapped by the outer packaging bag 2, and the inner packaging bag 3 is protected on the outside of the inner packaging bag 3, so that when the outer packaging bag 2 is damaged, the inner packaging bag 3 can continue to be used.

[0022] The top of the inflation branch pipe 4 is fixedly connected with the inflation main pipe 6, the top end of the inflation main pipe 6 is flush with the edge of the outer packaging bag 2, the bottom end of the inflation main pipe 6 is fixed with a vortex tube 5, the end of the inflation main pipe 6 connected to the inflation branch pipe 4 is fixed with a vortex tube 5, the other end of the vortex tube 5 is fixed to the top of the inner packaging bag 3, the vortex tube 5 and the inflation main pipe 6 are bent in an S shape, the inflation branch pipe 4, the vortex tube 5, and the inflation main pipe 6 are interconnected, the end of the vortex tube 5 connected to the inner packaging bag 3 is connected to the inside of the inner packaging bag 3, and is connected to the outer packaging bag 2 through the inflation main pipe 6. When gas is injected into the inflation main pipe 6 from the end of the inner packaging bag 2 with the edge flush, a large amount of gas will directly enter the inner packaging bag 3 from the inflation branch pipe 4 to expand the inner packaging bag 3, and a small amount of gas will enter the inner packaging bag 3 along the vortex tube 5. After the inner packaging bag 3 expands to a certain extent, the gas inside the inner packaging bag 3 will enter the vortex tube 5 and return to the inner packaging bag 3 again through the inflation branch pipe 4. The gas will form a vortex at the place where the inflation branch pipe 4, the vortex tube 5, and the inflation main pipe 6 are connected to each other, thereby preventing the gas from overflowing and realizing one-way inflation.

[0023] like Figure 3 and Figure 4As described, a supporting air path 9 is provided inside the supporting strip 7, and connecting air holes 8 are provided on the front and rear surfaces of the inner packaging bag 3. Both ends of the supporting air path 9 are open and aligned with the connecting air holes 8. The inner diameter of the supporting air path 9 is consistent with the aperture of the connecting air holes 8. When gas is filled into the inner packaging bag 3, the gas will enter the supporting air path 9 along the connecting air holes 8. After the supporting air path 9 is filled with gas, the supporting strip 7 expands. The expanded supporting strip 7 supports between the outer packaging bag 2 and the inner packaging bag 3, ensuring that the outer packaging bag 2 is not in contact with the inner packaging bag 3, increasing the elasticity of the aluminum foil composite packaging bag, and ensuring that when the outer packaging bag 2 is damaged, the inner packaging bag 3 will not be directly damaged.

[0024] Working principle: First, the staff connects the port of the inflation main pipe 6 flush with the edge sealing 1 to the inflation pipe, and then the gas is inflated through the inflation main pipe 6. A large amount of gas will directly enter the inner packaging bag 3 from the inflation branch pipe 4 to expand the inner packaging bag 3, and a small amount of gas will enter the inner packaging bag 3 along the vortex tube 5. The inner packaging bag 3 will expand after being inflated with gas, and during the expansion process of the inner packaging bag 3, the gas in the inner packaging bag 3 will enter the supporting air path 9 along the connecting air hole 8, so that the supporting strip 7 will expand after the supporting air path 9 is inflated. The expanded support strip 7 will play a supporting role between the outer packaging bag 2 and the inner packaging bag 3, supporting the outer packaging bag 2 from the inside of the outer packaging bag 2 and ensuring that the outer packaging bag 2 and the inner packaging bag 3 do not contact each other. After the inflation is completed, the end of the inflation main pipe 6 flush with the sealing edge 1 can be heat-sealed. The support strip 7 is used to increase the overall elasticity of the aluminum foil composite packaging bag and separate the outer packaging bag 2 and the inner packaging bag 3. When the outer packaging bag 2 is broken, the inner packaging bag 3 will not be directly damaged, ensuring that the aluminum foil composite packaging bag can continue to be used.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A novel multi-layer aluminum foil composite packaging bag, comprising an edge seal (1), characterized in that: An outer packaging bag (2) is provided on the inner side of the edge seal (1), an inner packaging bag (3) is placed inside the outer packaging bag (2), a plurality of support bars (7) arranged at equal intervals are fixed to the front and rear surfaces of the inner packaging bag (3), an inflation branch pipe (4) is fixed to the top end of the inner packaging bag (3), and the top end of the inflation branch pipe (4) passes through the inner packaging bag (3) and is inserted into the inside of the edge seal (1).

2. The novel multi-layer aluminum foil composite packaging bag according to claim 1 is characterized in that: The top end of the inflation branch pipe (4) is fixedly connected to the inflation main pipe (6), the top end port of the inflation main pipe (6) is flush with the edge of the outer packaging bag (2), and the bottom end of the inflation main pipe (6) is fixed to a vortex tube (5).

3. The novel multi-layer aluminum foil composite packaging bag according to claim 2 is characterized in that: A vortex tube (5) is fixed to the end of the inflation main pipe (6) connected to the inflation branch pipe (4), and the other end of the vortex tube (5) is fixed to the top of the inner packaging bag (3). The vortex tube (5) and the inflation main pipe (6) are bent in an S shape.

4. The novel multi-layer aluminum foil composite packaging bag according to claim 3 is characterized by: The inflation branch pipe (4), the vortex pipe (5) and the inflation main pipe (6) are interconnected, and the end of the vortex pipe (5) connected to the inner packaging bag (3) is connected to the interior of the inner packaging bag (3).

5. The novel multi-layer aluminum foil composite packaging bag according to claim 1 is characterized in that: A supporting air path (9) is provided inside the supporting strip (7), and connecting air holes (8) are provided on the front and rear surfaces of the inner packaging bag (3).

6. The novel multi-layer aluminum foil composite packaging bag according to claim 5 is characterized in that: Both end portions of the supporting gas path (9) are open and aligned with the connecting gas hole (8), and the inner diameter of the supporting gas path (9) is consistent with the aperture of the connecting gas hole (8).

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