Waterproof double-layer bag with inner layer capable of being folded and sealed

Abstract

The utility model belongs to the technical field of hand bags, and particularly discloses a waterproof double-layer bag with an inner layer capable of being folded and sealed, which comprises an inner-layer bag body and an outer-layer bag body, the outer-layer bag body is sleeved outside the inner-layer bag body to form a double-layer structure, the inner-layer bag body is made of waterproof heat insulation materials, and the outer-layer bag body is made of waterproof heat insulation materials. The bottom of the inner-layer bag body adheres to the bottom of the outer-layer bag body, the opening end of the inner-layer bag body is folded and sealed to form a closed cavity used for containing food, and handles are fixed to the two opposite side walls of the outer-layer bag body respectively. According to the waterproof double-layer bag with the inner layer capable of being folded and sealed, only the bottom of the inner-layer bag body and the bottom of the outer-layer bag body are bonded together, the flexibility of other parts of the inner-layer bag body is reserved, a user can directly fold the opening of the inner-layer bag body according to needs, and therefore temporary folding and sealing of the inner-layer bag body can be easily achieved to store food; and the requirements of consumers on diversified use modes of food packaging are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of handbags, and particularly relates to a double-layer bag with a foldable and waterproof inner layer. Background Art

[0002] In daily life and outdoor activities, food preservation and carrying is an important demand. Although traditional food packaging materials, such as paper bags, are convenient to carry, they often cannot effectively protect food from moisture and humidity in certain specific environments, such as rainy days or humid environments, which may cause food spoilage or contamination. In order to solve this problem, a variety of food packaging products with waterproof functions have appeared on the market. Among them, double-layer structure packaging bags are favored due to their good sealing and waterproof properties.

[0003] However, the existing double-layer bag design usually glues the inner and outer layers together to increase the overall strength of the bag without any other functions. However, such a design has functional limitations. In actual applications, users may want to have more diverse usage methods. In particular, when the inner layer needs to be temporarily closed to preserve food, the fully glued design of the existing double-layer bag cannot meet this demand.

[0004] Therefore, the inventor is committed to designing a double-layer bag to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a double-layer bag with a foldable and waterproof inner layer, which can temporarily seal the inner layer to preserve food and meet consumers' needs for diversified use of food packaging.

[0006] In order to achieve the above object, a technical solution adopted by the utility model is:

[0007] A double-layer bag with a foldable and waterproof inner layer, comprising an inner bag body and an outer bag body, wherein the outer bag body is sleeved outside the inner bag body to form a double-layer structure, the inner bag body is made of waterproof and heat-insulating material, the bottom of the inner bag body is adhered to the bottom of the outer bag body, the open end of the inner bag body is folded and sealed to form a closed cavity for storing food, and handles are respectively fixed on two opposite side walls of the outer bag body.

[0008] As an improvement of the double-layer bag with a foldable and waterproof inner layer of the utility model, the open end of the inner bag body is folded toward the outside along its length direction to form a folded portion, and the folded portion is located in the gap between the inner bag body and the outer bag body.

[0009] As an improvement of the double-layer bag with a foldable and waterproof inner layer of the utility model, the waterproof and heat-insulating material is aluminum foil, and the outer bag body is made of paper material.

[0010] As an improvement of the double-layer bag with a foldable and waterproof inner layer of the utility model, the inner folding bottom at the lower end of the inner bag body and the outer folding bottom at the lower end of the outer bag body are adhered by a first glue layer to form a circle of folded bottom layer, and the circle of folded bottom layer is folded in half and adhered by a second glue layer.

[0011] As an improvement of the double-layer bag with a foldable and waterproof inner layer of the utility model, fixing plates are respectively provided on two opposite inner walls of the outer bag body, and the two handles are respectively connected to the outer bag body through the fixing plates.

[0012] As an improvement of the double-layer bag with a foldable and waterproof inner layer of the utility model, the fixing sheet and the outer bag body are adhered by fixing glue.

[0013] As an improvement of the double-layer bag with a foldable and waterproof inner layer of the utility model, the two ends of the handle are located between the corresponding fixing plate and the outer bag body.

[0014] As an improvement of the double-layer bag with a foldable and waterproof inner layer of the utility model, the fixing sheet is in a long strip shape and is made of paper material.

[0015] As an improvement of the double-layer bag with a foldable and waterproof inner layer of the utility model, the handle is made of paper material, and the handle is a round paper rope or a flat paper rope.

[0016] As an improvement of the double-layer bag with a foldable and waterproof inner layer of the utility model, the height of the inner bag body is less than or equal to the height of the outer bag body.

[0017] Compared with the prior art, the utility model has an inner foldable and waterproof double-layer bag, in which only the bottom of the inner bag body is bonded to the bottom of the outer bag body, retaining the flexibility of other parts of the inner bag body, so that the user can directly fold the opening of the inner bag body as needed, thereby easily achieving temporary folding and sealing of the inner bag body to preserve food, thereby meeting consumers' demand for diversified usage of food packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the double-layer bag of the utility model whose inner layer can be folded and sealed for waterproofing;

[0019] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0020] Figure 3 It is a three-dimensional diagram of the inner layer of the double-layer bag of the utility model, in which the inner layer is folded and sealed and waterproof;

[0021] Figure 4It is an enlarged cross-sectional view of the inner layer of the double-layer bag of the utility model with a foldable and waterproof inner layer, in which the inner layer is in a folded and sealed state;

[0022] Figure 5 yes Figure 4 The enlarged view of point B in the middle;

[0023] Figure 6 yes Figure 4 Enlarged view of point C in the middle;

[0024] Figure 7 yes Figure 4 The enlarged view of point D in the middle;

[0025] Figure 8 It is a structural diagram of the double-layer bag of the utility model in a folded state.

[0026] Illustration Description:

[0027] 1. Outer bag body; 11. Outer folding line; 12. Outer folding bottom; 2. Inner bag body; 21. Inner folding line; 22. Folding part; 23. Inner folding bottom; 3. Handle; 4. Fixing sheet; 5. First glue layer; 6. Second glue layer; 7. Fixing glue; 8. Food; 9. Tableware. DETAILED DESCRIPTION

[0028] The following is a detailed explanation of the implementation of the present invention in conjunction with the accompanying drawings. The accompanying drawings are for reference and illustration only and do not constitute a limitation on the scope of patent protection of the present invention.

[0029] Reference Figures 1 to 8 A double-layer bag with a foldable and waterproof inner layer, comprising an inner bag body 2, an outer bag body 1 and two handles 3. The outer bag body 1 is sleeved on the inner bag body 2 to form a double-layer structure. The inner bag body 2 is made of waterproof and heat-insulating material. The bottom of the inner bag body 2 is adhered to the bottom of the outer bag body 1. The open end of the inner bag body 2 is folded and sealed to form a closed cavity for storing food 8. The two handles 3 are respectively fixed on the two opposite side walls of the outer bag body 1.

[0030] Reference Figures 1 to 6The outer bag body 1 is made of paper material. In this embodiment, the waterproof and heat-insulating material is specifically aluminum foil. Therefore, the inner bag body 2 is an aluminum foil layer, which is tinfoil. It not only has good waterproof performance, but also can effectively isolate light and oxygen, thereby extending the shelf life of food. At the same time, the softness and plasticity of tinfoil make it easy to fold and shape. The outer bag body 1 and the inner bag body 2 are rectangular in shape after being fully unfolded. The sides of the outer bag body 1 are bonded to form a rectangular cylinder (hollowed out at the top and bottom). The inner folding bottom 23 at the lower end of the inner bag body 2 (i.e., the folded part at the lower end of the inner bag body 2) and the outer folding bottom 12 at the lower end of the outer bag body 1 (i.e., the folded part at the lower end of the outer bag body 1) are bonded by the first glue layer 5 to form a circle. The bottom layer is folded, and after a circle of the bottom layer is folded in half, it is bonded together with the second glue layer 6 to form the bottom of the entire double-layer bag. The left and right sides of the outer bag body 1 are respectively provided with Y-shaped outer folding lines 11, and the left and right sides of the inner bag body 2 are also respectively provided with outer folding lines 11. When the opening end of the inner bag body 2 is in an unfolded and sealed state, the height of the inner bag body 2 is less than or equal to the height of the outer bag body 1. When the opening end of the inner bag body 2 is folded toward its outside along its length direction to form a folding portion 22, the opening end of the inner bag body 2 is in a folded and sealed state, and the folding portion 22 is located in the gap between the inner bag body 2 and the outer bag body 1. Since the outer bag body 1 is not folded, the folding of the inner bag body 2 does not affect the printing effect on the outer surface of the outer bag body 1.

[0031] Reference Figure 3 and Figure 7 The two opposite inner walls of the outer bag body 1 are respectively provided with fixing plates 4, which are in a long strip shape and made of paper material. The two handles 3 are respectively connected to the outer bag body 1 through the fixing plates 4. Specifically, the fixing plates 4 and the outer bag body 1 are adhered by fixing glue 7, and the two ends of the handles 3 are located between the corresponding fixing plates 4 and the outer bag body 1. The handles 3 are made of paper material, and the handles 3 are round paper ropes or flat paper ropes.

[0032] Reference Figures 1 to 8 The method of using the double-layer bag with a foldable and waterproof inner layer of the utility model is as follows:

[0033] First, place the food 8 in the inner bag 2;

[0034] Then, the open end of the inner bag body 2 is folded to one side to seal the open end of the inner bag body 2, and the food 8 is wrapped with the inner bag body 2 (such as Figure 3 and Figure 4 shown);

[0035] Then, tableware 9 (such as knives and forks, napkins, ingredients, etc.) is placed in the gap between the inner bag body 2 and the outer bag body 1;

[0036] The user only needs to hold the two handles 3 on the outer bag body 1 to take the packaged food away;

[0037] After use, if it needs to be used again, the two sides of the outer bag body 1 can be folded along the outer folding line 11, the two sides of the inner bag body 2 can be folded along the inner folding line 21, and then the bottom of the entire double-layer bag can be folded (such as Figure 8 The entire double-layer bag can be folded and stored.

[0038] The inner foldable waterproof double-layer bag of the utility model is composed of an inner bag body 2 and an outer bag body 1, and only the bottom of the inner bag body 2 is bonded to the bottom of the outer bag body 1. This design retains the flexibility of other parts of the inner bag body 2, allowing users to directly fold the opening of the inner bag body 2 as needed, thereby easily achieving the folding and sealing of the inner bag body 2. Users can easily close the inner bag body 2 when needed and wrap the food 8 in the inner bag body 2, effectively preventing the food 8 from being wetted by rain on rainy days. The inner foldable double-layer bag design of the utility model overcomes the functional limitations of traditional double-layer bags and provides a more flexible and practical food packaging solution. Its appearance will greatly meet consumers' demand for diversified uses of food packaging and bring new innovations to the development of the food packaging field.

[0039] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of protection of the present invention. Therefore, equivalent changes made within the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A double-layer bag with a foldable and waterproof inner layer, comprising an inner bag body and an outer bag body, characterized in that: The outer bag body is sleeved on the inner bag body to form a double-layer structure. The inner bag body is made of waterproof and heat-insulating material. The bottom of the inner bag body is adhered to the bottom of the outer bag body. The open end of the inner bag body is folded and sealed to form a closed cavity for storing food. Handles are respectively fixed on two opposite side walls of the outer bag body.

2. The double-layer bag with a foldable and waterproof inner layer according to claim 1, characterized in that: The open end of the inner bag body is folded toward the outside along the length direction thereof to form a folded portion, and the folded portion is located in the gap between the inner bag body and the outer bag body.

3. The double-layer bag with a foldable and waterproof inner layer according to claim 1, characterized in that: The waterproof and heat-insulating material is aluminum foil, and the outer bag body is made of paper material.

4. The double-layer bag with a foldable and waterproof inner layer according to claim 1, characterized in that: The inner folding bottom at the lower end of the inner bag body and the outer folding bottom at the lower end of the outer bag body are bonded together by a first glue layer to form a circle of folded bottom layer, and the circle of folded bottom layer is folded in half and bonded together by a second glue layer.

5. The double-layer bag with a foldable and waterproof inner layer according to claim 1, characterized in that: Two opposite inner walls of the outer bag body are respectively provided with fixing plates, and the two handles are respectively connected to the outer bag body through the fixing plates.

6. The double-layer bag with a foldable and waterproof inner layer according to claim 5, characterized in that: The fixing sheet and the outer bag body are bonded together by fixing glue.

7. The double-layer bag with a foldable and waterproof inner layer according to claim 5, characterized in that: The two ends of the handle are located between the corresponding fixing plate and the outer bag body.

8. The double-layer bag with a foldable and waterproof inner layer according to claim 5, characterized in that: The fixing sheet is in a long strip shape and is made of paper material.

9. The double-layer bag with a foldable and waterproof inner layer according to claim 1, characterized in that: The handle is made of paper material, and the handle is a round paper rope or a flat paper rope.

10. The double-layer bag with a foldable and waterproof inner layer according to claim 1, characterized in that: The height of the inner bag body is less than or equal to the height of the outer bag body.

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