Double-layer food packaging bag

Abstract

The utility model discloses a double-layer food packaging bag, which belongs to the technical field of packaging bags and comprises an inner bag for placing food, an outer bag for protecting the inner bag is arranged outside the inner bag, a protection cavity is arranged between the outer bag and the inner bag, air is filled in the protection cavity, a first connecting belt is arranged at the bottom of the inner bag, and a second connecting belt is arranged at the bottom of the inner bag. The side faces of the two sides of the inner bag are fixedly connected with second connecting belts, the other ends of the first connecting belts and the other ends of the second connecting belts are fixedly connected with the inner side face of the outer bag, the first connecting belts and the second connecting belts are in a tightened state, an air bag is arranged in the cavity, the inner bag is sleeved with the air bag, and repeated protection on food can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, and more specifically to a double-layer food packaging bag. Background Art

[0002] Food packaging bags are a type of packaging design. In order to preserve and store food in life, product packaging bags are produced. Food packaging bags refer to film containers that are in direct contact with food and are used to hold and protect food.

[0003] In order to achieve a protective effect, existing food packaging bags usually adopt a double-layer form. Usually, the inner bag is vacuumed to protect the integrity of the food, and the outer bag is filled with protective gas to protect the inner bag and prevent damage to the inner bag. However, after the existing packaging is opened, if there is too much food to be eaten all at once, the outer bag cannot achieve secondary protection. A solution to the above problem is proposed below. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a double-layer food packaging bag, which can realize repeated protection of food.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A double-layer food packaging bag comprises an inner bag for placing food, an outer bag for protecting the inner bag is arranged outside the inner bag, a protective cavity is arranged between the outer bag and the inner bag, the protective cavity is filled with air, a first connecting belt is arranged at the bottom of the inner bag, and second connecting belts are fixedly connected to the side surfaces of the inner bag, the other ends of the first connecting belt and the second connecting belt are respectively fixedly connected to the inner side surface of the outer bag, and the first connecting belt and the second connecting belt are both in a taut state, and an airbag is arranged inside the cavity, and the airbag is sleeved on the inner bag.

[0007] Preferably, the opening directions of the inner bag and the outer bag are consistent.

[0008] Preferably, sealing strips for secondary sealing are provided inside the openings of the inner bag and the outer bag.

[0009] Preferably, the airbag is in a hollow ring shape, and the interior of the airbag is filled with air that plays a buffering and protective role.

[0010] Preferably, there is a gap between the airbag and the outer bag for movement.

[0011] Preferably, the outer bag is provided with a hanging opening connected to an external shelf.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] 1. When this solution is used, the outer bag and the air filled inside play a buffering and protective role. The inner bag can be vacuumed to ensure the integrity of the food in the inner bag. At the same time, the first connecting belt and the second connecting belt straighten the inner bag so that it will not directly contact the outer bag, further ensuring the protection effect.

[0014] Second, there are sealing strips at the opening ends of the inner bag and the outer bag, which can achieve secondary sealing. At the same time, during the secondary sealing, the airbag will prop up the gap between the outer bag and the inner bag to provide secondary protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0017] Description of the numbers in the figure:

[0018] 1. Inner bag; 2. Outer bag; 3. Protective cavity; 4. First connecting belt; 5. Second connecting belt; 6. Airbag; 7. Sealing strip; 8. Gap; 9. Hanging opening. DETAILED DESCRIPTION

[0019] Embodiment 1:

[0020] See also Figure 1-2 A double-layer food packaging bag comprises an inner bag 1 for placing food, an outer bag 2 for protecting the inner bag 1 is arranged outside the inner bag 1, the outer bag 2 is a soft plastic bag, the opening directions of the inner bag 1 and the outer bag 2 are consistent, and it is convenient to take out the food in the inner bag 1, the opening ends of the outer bag 2 and the inner bag 1 are hot-pressed and sealed, and a hanging opening 9 connected to an external shelf is opened in the direction of the opening end of the outer bag 2, and a sealing strip 7 for secondary sealing is arranged inside the openings of the inner bag 1 and the outer bag 2.

[0021] A protective cavity 3 is provided between the outer bag 2 and the inner bag 1, and the interior of the protective cavity 3 is filled with air. A first connecting belt 4 is provided at the bottom of the inner bag 1, and second connecting belts 5 are fixedly connected to the two side surfaces of the inner bag 1. The other ends of the first connecting belt 4 and the second connecting belt 5 are respectively fixedly connected to the inner side surface of the outer bag 2, and the first connecting belt 4 and the second connecting belt 5 are both in a taut state.

[0022] An airbag 6 is arranged inside the cavity. The airbag 6 is hollow and annular. The airbag 6 is sleeved on the inner bag 1. The airbag 6 is filled with air for cushioning and protection. There is a gap 8 between the airbag 6 and the outer bag 2 for movement.

[0023] Working principle:

[0024] The inflated outer bag 2 and the tightened first connecting belt 4 and second connecting belt 5 ensure that the inner bag 1 and the outer bag 2 will not come into direct contact with each other. The air inside the outer bag 2 will inflate the outer bag 2, thereby playing a buffering role and providing external protection. The inner bag 1 can be vacuumed to protect the food inside from being damaged.

[0025] When food needs to be eaten, the outer bag 2 is opened first, and part of the air inside the outer bag 2 will be discharged. The front and rear sides of the outer bag 2 will approach each other until they are tightly attached to the airbag 6, and the bottom of the outer bag 2 will fold inward, so as to be close to the distance from the inner bag 1, that is, the first connecting belt 4 and the second connecting belt 5 are relaxed, leaving a margin to pull the inner bag 1 out of the outer bag 2, so as to facilitate pouring out the food inside the inner bag 1.

[0026] When the food cannot be eaten all at once, the food can be put back into the inner bag 1, the sealing strip 7 on the inner bag 1 is sealed and then the inner bag 1 is put back into the outer bag 2. At the same time, the first connecting belt 4 and the second connecting belt 5 can prevent the inner bag 1 from being separated from the outer bag 2, and the sealing strip 7 of the outer bag 2 is sealed. Since the airbag 6 is filled between the inner bag 1 and the outer bag 2, the outer bag 2 will not directly contact the inner bag 1, which can provide secondary protection.

Claims

1. A double-layer food packaging bag, characterized in that: The invention comprises an inner bag (1) for placing food, an outer bag (2) for protecting the inner bag (1) is arranged outside the inner bag (1), a protective cavity (3) is arranged between the outer bag (2) and the inner bag (1), the interior of the protective cavity (3) is filled with air, a first connecting belt (4) is arranged at the bottom of the inner bag (1), and second connecting belts (5) are fixedly connected to the side surfaces of the inner bag (1), the other ends of the first connecting belt (4) and the second connecting belt (5) are respectively fixedly connected to the inner side surface of the outer bag (2), and the first connecting belt (4) and the second connecting belt (5) are both in a taut state, and an air bag (6) is arranged inside the protective cavity, and the air bag (6) is sleeved on the inner bag (1).

2. A double-layer food packaging bag according to claim 1, characterized in that: The opening directions of the inner bag (1) and the outer bag (2) are consistent.

3. A double-layer food packaging bag according to claim 1, characterized in that: Sealing strips (7) for secondary sealing are arranged inside the openings of the inner bag (1) and the outer bag (2).

4. A double-layer food packaging bag according to claim 1, characterized in that: The airbag (6) is in the shape of a hollow ring, and the interior of the airbag (6) is filled with air that plays a buffering and protective role.

5. A double-layer food packaging bag according to claim 1, characterized in that: There is a gap (8) for movement between the airbag (6) and the outer bag (2).

6. A double-layer food packaging bag according to claim 1, characterized in that: The outer bag (2) is provided with a hanging opening (9) connected to an external shelf.

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