Multi-layer packaging bag

Abstract

The utility model discloses a multi-layer packaging bag, which belongs to the technical field of packaging bags and comprises an outer bag body, an inner bag body and a zipper, small articles are placed in a first storage space by zipping up the zipper, when large articles are placed, the zipper is unzipped, and the large articles can be placed in the first storage space. Articles are placed in the second storage space between the outer bag body and the inner bag body, so that the volume and the external volume of the packaging bag can be changed according to the sizes of the articles needing to be contained, the articles can be contained more conveniently, and when small articles are contained, the volume of the packaging bag is also reduced, so that the occupation of the external space can be reduced; the packaging bag has the advantages that the packaging bag is simple in structure and convenient to use, carrying is more convenient, the packaging bag can be prevented from being unfolded after the packaging bag is rolled up along the bottom through buckling of a male buckle and a female buckle of a snap buckle, then the packaging bag can be more convenient to store and carry, and articles needing privacy preservation can be placed into the storage bag through a through groove by arranging the storage bag.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging bags, and in particular relates to a multi-layer packaging bag. Background Art

[0002] Plastic packaging bags are made of plastic as raw material and are used to produce packaging bags for various items in life. They are widely used in daily life and are often used to package food and small items.

[0003] Chinese utility model patent CN219970495U discloses a multi-layer plastic packaging bag, including a bag body and a sealing strip for closing the bag opening. The bag body has six layers, and is composed of a PET layer, an aluminum foil layer, a PE layer, an anti-corrosion layer, a flame retardant layer and an anti-counterfeiting layer from the inside to the outside. The inner wall of the bag body is bonded with a reinforcing strip, and the bottom of the bag body is bonded with a square piece. The reinforcement strip can enhance the overall strength of the bag body, the square piece can enhance the bottom thickness of the bag body, and the anti-corrosion layer and the flame retardant layer greatly improve the anti-corrosion and flame retardant properties of the bag body, making it safer to use.

[0004] Although the above-mentioned prior art can improve the corrosion resistance and flame retardancy of plastic packaging bags, the volume of the packaging bags is fixed. Therefore, when small items are packed in a large packaging bag, the packaging bag is too large to be carried, while when large items are packed in a small packaging bag, it is impossible to hold them. It is necessary to prepare a large-capacity packaging bag separately, which makes it impossible to adjust the volume of the packaging bag according to the size of the items. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] In order to solve the problem that the volume of the packaging bag proposed in the above background technology is fixed, so when small items are put into a large packaging bag, the packaging bag is large and inconvenient to carry, and when large items are put into a small packaging bag, it is impossible to hold them. It is necessary to prepare a packaging bag with a large capacity, which makes it impossible to adjust the volume of the packaging bag according to the size of the items. The utility model adopts the following technical solution.

[0007] A multi-layer packaging bag comprises an outer bag body and an inner bag body, the inner bag body is arranged inside the outer bag body, and the outer walls of the inner bag body and the outer bag body are provided with a notch groove, which penetrates one side outer wall and the bottom of the outer bag body and the inner bag body, and sealing belts are provided on both sides of the inner part of the notch groove, and the sealing belts on both sides are fixedly connected to the outer bag body and the inner bag body on both sides respectively, and a zipper is provided between the sealing belts on both sides, and a second storage space is formed between the inner bag body and the outer bag body, and the interior enclosed by the inner bag body when the zipper is closed is a first storage space, and an anti-expansion component is installed on the outer wall of the outer bag body, and the anti-expansion component can fix the packaging bag after it is rolled up.

[0008] Preferably, the inner bag body is fixedly connected to a storage bag near the outer wall of the outer bag body, the opening of the storage bag faces upward, and a through groove is provided in the inner bag body near the opening of the storage bag.

[0009] Preferably, a shielding strip is provided on the inner wall of the inner bag body away from the storage bag, and the outer edge of the upper end of the shielding strip is fixedly connected to the inner wall of the inner bag body. The shielding strip blocks the through groove, and a button is provided between the outer wall of the shielding strip near the lower end and the inner bag body. The button relatively fixes the bottom of the shielding strip and the inner bag body.

[0010] Preferably, a third magnetic strip is bonded to the outer edge of the inner bag body near the upper end, and a first magnetic strip is bonded to the outer wall of the outer bag body near the upper end of the inner bag body, and the first magnetic strip is magnetically attracted to the third magnetic strip.

[0011] Preferably, a second magnetic strip is bonded to the inner wall of the outer bag body, and a fourth magnetic strip is bonded to the outer wall of the inner bag body close to the outer bag body, and the fourth magnetic strip is attracted to the second magnetic strip.

[0012] Preferably, magnetic layers are provided on opposite surfaces of the two side handles, and the two side handles are attached together after magnetic attraction by the two side magnetic layers.

[0013] Preferably, the anti-expansion component includes a snap buckle, which is arranged on the outer wall near the upper end on both sides of the external bag body, and the packaging bag is rolled up along the bottom so that the sub-buckles of the snap buckles on both sides are buckled with the female buckles.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Small items can be placed inside the first storage space by closing the zipper. When placing large items, the zipper is opened and the items are placed inside the second storage space between the outer bag body and the inner bag body. The volume of the packaging bag and the external volume can be changed according to the size of the items to be contained, making it more convenient to contain items. When containing small items, the volume of the packaging bag is also reduced, which can reduce the occupation of the external space and make it more convenient to carry.

[0016] 2. The buckle and the female buckle of the provided male and female buckles can be fastened together to prevent the packaging bag from unfolding after the packaging bag is rolled up along the bottom, thereby making it more convenient to store and carry the packaging bag.

[0017] 3. By setting up the storage bag, items that need to be kept private can be placed inside the storage bag through the through slot, which can protect privacy and prevent theft.

[0018] 4. The shielding strip can shield the through-slot from being discovered, and the button can prevent the bottom of the storage bag from opening outward after items are placed in the first storage space, thereby leaking the through-slot.

[0019] 5. The second storage space can be sealed by the magnetic attraction of the third magnetic strip and the first magnetic strip, thereby preventing the second storage space from being open when storing small items. After sealing, important items such as wallets can be placed inside the second storage space, which can also play a role in protecting against theft.

[0020] 6. The adsorption of the fourth magnetic strip and the second magnetic strip can divide the interior of the second storage space into two spaces. When a large number of items are contained, they can be placed in the two spaces according to their types, thereby achieving the effect of classified storage.

[0021] 7. By setting the magnetic layers on the opposite sides of the lifting handles, the lifting handles on both sides can be attached together after magnetic attraction to reduce the area of the bag opening when lifting the packaging bag, thereby preventing the items inside from falling out. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of a multi-layer packaging bag in the utility model;

[0023] Figure 2 This is a schematic diagram of the second storage space structure in the present utility model;

[0024] Figure 3 This is a schematic diagram of the storage bag structure in the utility model;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the external bag body in this utility model.

[0026] The corresponding relationship between the illustration labels and component names in the figure is as follows:

[0027] 100, outer bag; 101, handle; 102, zipper; 103, first storage space; 104, second storage space; 105, first magnetic strip; 106, second magnetic strip; 107, sealing tape;

[0028] 200, inner bag body; 201, shielding strip; 202, storage bag; 203, notch slot; 204, third magnetic strip; 205, fourth magnetic strip;

[0029] 300. Snap buttons. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0033] like Figure 1-3 As shown, it is a schematic diagram of the structure of a multi-layer packaging bag in a preferred embodiment of the present invention. The multi-layer packaging bag in this embodiment includes an outer bag body 100 and an inner bag body 200. The inner bag body 200 is arranged inside the outer bag body 100. The outer walls of the inner bag body 200 and the outer bag body 100 are provided with a notch groove 203. The notch groove 203 penetrates one side outer wall and the bottom of the outer bag body 100 and the inner bag body 200. Sealing tapes 107 are provided on both sides of the inner part of the notch groove 203. The sealing tapes 107 on both sides are fixedly connected to the outer bag body 100 and the inner bag body 200 on both sides respectively. A zipper 102 is provided between the sealing tapes 107 on both sides. The inner bag body 200 and the outer bag body 1 00 is the second storage space 104, and the interior enclosed by the inner bag body 200 when the zipper 102 is closed is the first storage space 103. In this embodiment, when small items need to be placed, the zipper 102 is closed to place the small items inside the first storage space 103. When large items are placed, the zipper 102 is opened and the items are placed inside the second storage space 104 between the outer bag body 100 and the inner bag body 200. The volume and external volume of the packaging bag can be changed according to the size of the items to be placed, making it more convenient to place items. When small items are placed, the volume of the packaging bag also becomes smaller, which can reduce the occupancy of the external space, making it more convenient to carry.

[0034] like Figure 1 As shown, it is a schematic diagram of the structure of the multi-layer packaging bag in this embodiment. The outer walls on both sides of the external bag body 100 near the upper end are respectively provided with sub-snap buckles and female buckles of the snap buckles 300. In this embodiment, when the packaging bag is not in use, the packaging bag is rolled up along the bottom so that the sub-snap buckles and female buckles of the snap buckles 300 on both sides can prevent the packaging bag from unfolding after being fastened, thereby making it more convenient to store and carry the packaging bag.

[0035] It is worth noting that the above-mentioned snap fastener 300 is the anti-expansion component in this embodiment. The anti-expansion component includes but is not limited to the snap fastener 300. Any component that can be fixed after the packaging bag is rolled up can be applied to this embodiment.

[0036] like Figure 3 As shown, it is a schematic diagram of the storage bag structure in this embodiment, the inner bag body 200 is fixedly connected to the outer wall of the outer bag body 100 with a storage bag 202, the opening of the storage bag 202 faces upward, and the inner bag body 200 is provided with a through groove near the opening of the storage bag 202. In this embodiment, when the zipper 102 is closed, the setting of the storage bag 202 can allow items that need to be kept private to be placed inside the storage bag 202 through the through groove, which can protect privacy and prevent theft.

[0037] like Figure 2 As shown, a shielding strip 201 is provided on the inner wall of the internal bag body 200 away from the storage bag 202, and the outer edge of the upper end of the shielding strip 201 is fixedly connected to the inner wall of the internal bag body 200, and the shielding strip 201 blocks the through-slot, and a button is provided between the outer wall of the shielding strip 201 near the lower end and the internal bag body 200, and the button fixes the lower part of the shielding strip 201 relatively to the internal bag body 200. In this embodiment, the through-slot can be blocked by the shielding strip 201 to avoid being discovered, and the button can prevent the lower part of the storage bag 202 from opening outward after items are placed in the first storage space 103, leaking the through-slot.

[0038] like Figure 4 As shown, it is a schematic diagram of the cross-sectional structure of the external bag body in this embodiment, the outer edge of the internal bag body 200 near the upper end is adhered with a third magnetic strip 204, and the outer wall of the external bag body 100 near the upper end of the internal bag body 200 is adhered with a first magnetic strip 105, and the first magnetic strip 105 is magnetically attracted to the third magnetic strip 204. In this embodiment, when the zipper 102 is closed, the second storage space 104 can be sealed by the magnetic attraction of the third magnetic strip 204 and the first magnetic strip 105, thereby preventing the second storage space 104 from being often open when small items are contained, and after sealing, important items such as wallets can be placed inside the second storage space 104, which can also play a role in protecting against theft.

[0039] like Figure 4As shown, the inner wall of the outer bag body 100 is adhered with a second magnetic strip 106, and the outer wall of the inner bag body 200 close to the outer bag body 100 is adhered with a fourth magnetic strip 205, and the fourth magnetic strip 205 is adsorbed with the second magnetic strip 106. In this embodiment, the interior of the second storage space 104 can be divided into two spaces by the adsorption of the fourth magnetic strip 205 and the second magnetic strip 106. When a large number of items are contained, they can be placed in the two spaces according to their types, which can achieve the purpose of classified storage.

[0040] like Figure 1 As shown, magnetic layers are provided on opposite surfaces of the lifting handles 101 on both sides, and the lifting handles 101 on both sides are attached together after magnetic attraction by the magnetic layers on both sides. In this embodiment, the area of the bag opening can be reduced when the packaging bag is lifted, thereby preventing the items inside from falling out.

[0041] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A multi-layer packaging bag, comprising an outer bag body (100) and an inner bag body (200), wherein the inner bag body (200) is arranged inside the outer bag body (100), characterized in that: The outer walls of the inner bag body (200) and the outer bag body (100) are provided with a notch groove (203), the notch groove (203) penetrates the outer wall and the bottom of one side of the outer bag body (100) and the inner bag body (200), and sealing belts (107) are provided on both sides of the inner part of the notch groove (203), and the sealing belts (107) on both sides are fixedly connected to the outer bag body (100) and the inner bag body (200) on both sides respectively, and a zipper (102) is provided between the sealing belts (107) on both sides, and a second storage space (104) is formed between the inner bag body (200) and the outer bag body (100), and when the zipper (102) is closed, the interior of the inner bag body (200) is the first storage space (103), and an anti-expansion component is installed on the outer wall of the outer bag body (100), and the anti-expansion component can roll up the packaging bag and fix it.

2. The multi-layer packaging bag according to claim 1, characterized in that: The inner bag body (200) is fixedly connected to a storage bag (202) near the outer wall of the outer bag body (100), the opening of the storage bag (202) faces upward, and a through groove is provided at the opening of the inner bag body (200) near the storage bag (202).

3. The multi-layer packaging bag according to claim 2, characterized in that: A shielding strip (201) is provided on the inner wall of the inner bag body (200) away from the storage bag (202); the outer edge of the upper end of the shielding strip (201) is fixedly connected to the inner wall of the inner bag body (200); the shielding strip (201) shields the through groove; a button is provided between the outer wall of the shielding strip (201) near the lower end and the inner bag body (200); the button relatively fixes the lower part of the shielding strip (201) and the inner bag body (200).

4. The multi-layer packaging bag according to claim 3, characterized in that: A third magnetic strip (204) is bonded to the outer edge of the inner bag body (200) near the upper end, and a first magnetic strip (105) is bonded to the outer wall of the outer bag body (100) near the upper end of the inner bag body (200), and the first magnetic strip (105) and the third magnetic strip (204) are magnetically attracted.

5. The multi-layer packaging bag according to claim 4, characterized in that: The inner wall of the outer bag body (100) is bonded with a second magnetic strip (106), and the outer wall of the inner bag body (200) close to the outer bag body (100) is bonded with a fourth magnetic strip (205), and the fourth magnetic strip (205) is adsorbed with the second magnetic strip (106).

6. The multi-layer packaging bag according to claim 5, characterized in that: The opposite surfaces of the lifting handles (101) on both sides are provided with magnetic attraction layers, and the lifting handles (101) on both sides are attached to each other after magnetic attraction by the magnetic attraction layers on both sides.

7. The multi-layer packaging bag according to claim 6, characterized in that: The anti-expansion component includes a snap buckle (300), which is arranged on the outer wall of both sides of the external bag body (100) close to the upper end, and the packaging bag is rolled up along the bottom so that the sub-buckles of the snap buckle (300) on both sides are buckled with the female buckle.

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