Multi-layered composite high strength food carton

By using a multi-layered composite structure for food paper boxes, and by combining curved cardboard with limiting paper pieces, the food paper boxes can be disassembled and restored, solving the problem of paper boxes not being reusable and achieving the effect of environmental protection and saving pulp materials.

CN224410130UActive Publication Date: 2026-06-26XUANCHENG MINGREN PACKING & PLANNING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XUANCHENG MINGREN PACKING & PLANNING CO LTD
Filing Date
2025-07-05
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing food cartons are difficult to restore after opening, making them unrecyclable and wasteful of pulp materials, which is not environmentally friendly.

Method used

Design a multi-layer composite high-strength food paper box, comprising an outer shell, a cover, a storage frame, and fixing components. It can be disassembled and restored through the cooperation of curved cardboard and limiting paper pieces, forming a multi-layer structure to provide high-strength protection.

Benefits of technology

This enables the reusability of food cartons, reduces pulp waste, and improves environmental friendliness.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224410130U_ABST
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Abstract

The utility model relates to food packaging technical field, concretely is a kind of multilayer composite high-strength food paper box, including shell and apron, shell and apron are provided with containing component, containing component includes storage frame one and storage frame two, storage frame one is fixedly connected in the inside of shell, storage frame two is fixedly connected on apron, storage frame one and storage frame two are compatible, shell and storage frame two are provided with fixed component, fixed component includes arc paperboard, arc paperboard is fixedly connected on storage frame two, arc paperboard and the inner wall of shell are matched;The utility model can be under the premise of providing protection for food, by artificial realization disassembly and recovery, to make paper box can be recycled, pulp material is saved, and more environmental protection.
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Description

Technical Field

[0001] This utility model relates to the field of food packaging technology, specifically a multi-layer composite high-strength food paper box. Background Technology

[0002] Food cartons are paper boxes used to package food. They are usually made of rigid cardboard to provide sufficient pressure resistance so that the food cartons will not be squeezed or deformed during transportation.

[0003] Most food cartons on the market are for single use. Once opened, the structure of the carton is damaged or deformed and difficult to restore manually. Therefore, the carton cannot be recycled and reused, which leads to waste of the carton and pulp raw materials, which is not conducive to environmental protection and resource conservation. Therefore, a new type of food carton is needed to solve this problem. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model proposes a multi-layer composite high-strength food paper box that can be manually disassembled and reassembled while providing protection for food. This allows the paper box to be reused, saves pulp materials, and is more environmentally friendly.

[0005] The technical solution to achieve the purpose of this utility model is as follows: a multi-layer composite high-strength food paper box, including an outer shell and a cover plate, wherein the outer shell and the cover plate are provided with a receiving component, the receiving component including a storage frame one and a storage frame two, the storage frame one being fixedly connected to the inside of the outer shell, the storage frame two being fixedly connected to the cover plate, the storage frame one and the storage frame two being adapted to each other, and a fixing component being provided on the outer shell and the storage frame two, the fixing component including an arc-shaped cardboard, the arc-shaped cardboard being fixedly connected to the storage frame two, the arc-shaped cardboard cooperating with the inner wall of the outer shell.

[0006] Preferably, the receiving component further includes a fixing block, which is L-shaped.

[0007] Preferably, four fixing blocks are provided, and the four fixing blocks are respectively located at the four top corners of the cover plate.

[0008] Preferably, the fixing component further includes a limiting paper piece, which is fixedly connected to the inner wall of the outer casing.

[0009] Preferably, the fixing component further includes an insertion hole, which is formed on the arc-shaped cardboard and cooperates with the limiting paper piece.

[0010] Preferably, the curved cardboard, the insertion holes and the limiting paper pieces are provided in four sets. The four curved cardboard pieces are respectively located on the four outer walls of the storage frame two, the four insertion holes are respectively located on the four curved cardboard pieces, and the four limiting paper pieces are respectively located on the four inner walls of the outer shell.

[0011] Compared with the prior art, the significant advantages of this utility model are:

[0012] Firstly, in this invention, the food to be packaged can be placed in the first storage frame, and then the cover can be placed on the outer shell. During this process, the second storage frame will cover the outside of the first storage frame, thus wrapping the food. As the cover is fastened to the outer shell, the curved cardboard will be embedded in the gap between the limiting paper and the outer wall of the first storage frame. Then, the limiting paper will squeeze the curved cardboard, causing it to deform. When the cover is fully fastened to the top of the outer shell, the four limiting paper will be inserted into the four holes on the curved cardboard. At this time, the cover and the second storage frame are fixed by the fixing of the limiting paper and the curved cardboard. After the limiting paper is inserted into the hole, the curved cardboard will spring back, causing it to press against the inner wall of the outer shell, thus helping to fix the outer shell and the cover. At this time, the cardboard box has a total of four layers from the outside to the inside: the outer shell, the curved cardboard, the first storage frame, and the second storage frame. Therefore, it can provide high-strength protection for the food in the second storage frame.

[0013] Secondly, in this invention, when the cardboard box needs to be opened, simply lift the lid upwards. During this process, it is necessary to overcome the friction between the curved cardboard and the inner wall of the outer shell, as well as the elasticity of the curved cardboard itself. When the lid is lifted a short distance, the curved cardboard will also be lifted upwards. Since the limiting paper is still inserted in the insertion hole, when the curved cardboard and the lid are lifted upwards, it is necessary to insert fingers into the gap between the lid and the outer shell and press the curved cardboard. By pressing the curved cardboard towards the second storage frame, the limiting paper is dislodged from the insertion hole, thus separating the curved cardboard and the limiting paper. Repeat this operation on the four curved cardboards until the outer shell and the lid are completely separated, allowing the cardboard box to be opened. At this point, the food placed in the first storage frame can be taken out. Since it is not necessary to forcefully damage the various structures of the cardboard box during this process, the curved cardboard and the limiting paper will only bend slightly during the disassembly and assembly of the cardboard box. Therefore, each structure can be reused, and the entire cardboard box can be reused several times, thus avoiding the waste of the cardboard box after one-time use. Attached Figure Description

[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ;

[0017] Figure 3 This is an exploded view of the structure of the cover plate and the curved cardboard in this utility model;

[0018] Figure 4 This is a cross-sectional view of the internal structure of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Outer shell; 2. Cover plate; 3. Receiving component; 31. Storage frame one; 32. Storage frame two; 33. Fixing block; 4. Fixing component; 41. Curved cardboard; 42. Insertion hole; 43. Limiting paper piece. Detailed Implementation

[0021] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0022] This utility model provides an improved multi-layer composite high-strength food paper box. The technical solution of this utility model is as follows:

[0023] like Figures 1-4 As shown, a multi-layer composite high-strength food paper box includes an outer shell 1 and a cover 2. A receiving component 3 is provided on the outer shell 1 and the cover 2. The receiving component 3 includes a first storage frame 31 and a second storage frame 32. The first storage frame 31 is fixedly connected to the inside of the outer shell 1, and the second storage frame 32 is fixedly connected to the cover 2. The first storage frame 31 and the second storage frame 32 are adapted to each other. A fixing component 4 is provided on the outer shell 1 and the second storage frame 32. The fixing component 4 includes an arc-shaped cardboard 41, which is fixedly connected to the second storage frame 32 and cooperates with the inner wall of the outer shell 1. The first storage frame 31 is used to place food. When the cover 2 is fastened to the outer shell 1, the entire paper box is divided into four layers from the outside to the inside: the outer shell 1, the arc-shaped cardboard 41, the second storage frame 32, and the first storage frame 31, thus providing high-strength protection for the food.

[0024] In this utility model, the receiving component 3 also includes a fixing block 33. The fixing block 33 is L-shaped and can be fastened to the four corners of the outer shell 1, making the corners of the cardboard box stronger and avoiding the problem that the corners are more easily deformed when touched.

[0025] In this utility model, four fixing blocks 33 are provided. The four fixing blocks 33 are located at the four top corners of the cover plate 2. The four fixing blocks 33 also play an auxiliary fixing role. When the cover plate 2 and the outer shell 1 are fastened together, a certain friction force will be generated between the four fixing blocks 33 and the outer wall of the outer shell 1.

[0026] In this utility model, the fixing component 4 also includes a limiting paper piece 43, which is fixedly connected to the inner wall of the outer shell 1. The limiting paper piece 43 is a small piece of rigid cardboard set horizontally.

[0027] In this utility model, the fixing component 4 also includes a socket 42, which is formed on the arc-shaped cardboard 41. The socket 42 cooperates with the limiting paper piece 43, and the limiting paper piece 43 can be inserted into the socket 42 to fix the limiting paper piece 43 and the arc-shaped cardboard 41, thereby indirectly achieving the fixation between the outer shell 1 and the cover plate 2.

[0028] In this utility model, there are four sets of arc-shaped cardboard 41, insertion holes 42 and limiting paper pieces 43. The four arc-shaped cardboard 41 are respectively located on the four outer walls of the storage frame 32, the four insertion holes 42 are respectively located on the four arc-shaped cardboard 41, and the four limiting paper pieces 43 are respectively located on the four inner walls of the outer shell 1, and the four limiting paper pieces 43 are respectively located at the center of the four inner walls of the outer shell 1. The position of the insertion hole 42 on the arc-shaped cardboard 41 corresponds to it.

[0029] The specific working method is as follows: First, place the food to be packaged inside the first storage frame 31. Then, place the cover plate 2 on the outer shell 1. During this process, the second storage frame 32 will cover the outside of the first storage frame 31, thus wrapping the food. As the cover plate 2 is fastened to the outer shell 1, the curved cardboard 41 will be embedded in the gap between the limiting paper piece 43 and the outer wall of the first storage frame 31. Then, the limiting paper piece 43 will squeeze the curved cardboard 41, causing it to deform. Until the cover plate 2 is completely fastened to the top of the outer shell 1, the four limiting paper pieces 43 will respectively... Insert the cardboard into the holes 42 on the four curved cardboard pieces 41. At this time, the cover plate 2 and the second storage frame 32 are fixed to the curved cardboard 41 by the limiting paper piece 43. After the limiting paper piece 43 is inserted into the hole 42, the curved cardboard 41 will spring back, so that the curved cardboard 41 abuts against the inner wall of the outer shell 1, which helps to fix the outer shell 1 and the cover plate 2. At this time, the cardboard box has a total of four layers from the outside to the inside, namely the outer shell 1, the curved cardboard 41, the first storage frame 31 and the second storage frame 32. Therefore, it can provide high-strength protection for the food in the second storage frame 32.

[0030] When the cardboard box needs to be opened, simply lift the cover 2 upwards. During this process, the friction between the curved cardboard 41 and the inner wall of the outer shell 1, as well as the elasticity of the curved cardboard 41 itself, must be overcome. When the cover 2 is lifted a short distance, the curved cardboard 41 will also be lifted upwards. Since the limiting paper 43 is still inserted in the insertion hole 42, when the curved cardboard 41 and the cover 2 are lifted upwards, fingers need to be inserted into the gap between the cover 2 and the outer shell 1 and pressed against the curved cardboard 41. By pressing the curved cardboard 41 towards the storage frame 32, the limiting paper... The piece 43 disengages from the insertion hole 42, completing the separation of the curved cardboard 41 and the limiting paper piece 43. This operation is repeated on the four curved cardboard pieces 41, and finally the outer shell 1 and the cover plate 2 can be completely separated. The cardboard box can then be opened, and the food placed in the storage frame 31 can be taken out. Since it is not necessary to forcefully damage the various structures of the cardboard box during this process, the curved cardboard 41 and the limiting paper piece 43 will only bend slightly during the disassembly and assembly of the cardboard box. Therefore, each structure can be reused, and the entire cardboard box can be reused several times, thus avoiding the situation where the cardboard box is wasted after one-time use.

[0031] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A multi-layer composite high-strength food paper box, comprising an outer shell (1) and a cover plate (2), characterized in that: The outer shell (1) and the cover plate (2) are provided with a receiving component (3). The receiving component (3) includes a first storage frame (31) and a second storage frame (32). The first storage frame (31) is fixedly connected to the inside of the outer shell (1), and the second storage frame (32) is fixedly connected to the cover plate (2). The first storage frame (31) and the second storage frame (32) are adapted to each other. The outer shell (1) and the second storage frame (32) are provided with a fixing component (4). The fixing component (4) includes an arc-shaped cardboard (41). The arc-shaped cardboard (41) is fixedly connected to the second storage frame (32), and the arc-shaped cardboard (41) cooperates with the inner wall of the outer shell (1).

2. The multi-layer composite high-strength food paper box according to claim 1, characterized in that: The receiving component (3) further includes a fixing block (33) which is L-shaped.

3. The multi-layer composite high-strength food paper box according to claim 2, characterized in that: Four fixing blocks (33) are provided, and the four fixing blocks (33) are located at the four top corners of the cover plate (2).

4. The multi-layer composite high-strength food paper box according to claim 1, characterized in that: The fixing component (4) also includes a limiting paper piece (43), which is fixedly connected to the inner wall of the outer shell (1).

5. A multi-layer composite high-strength food paper box according to claim 4, characterized in that: The fixing component (4) also includes a socket (42), which is formed on the arc-shaped cardboard (41) and cooperates with the limiting paper piece (43).

6. A multi-layer composite high-strength food paper box according to claim 5, characterized in that: The curved cardboard (41), the insertion hole (42) and the limiting paper piece (43) are provided in four sets. The four curved cardboards (41) are respectively located on the four outer walls of the second storage frame (32), the four insertion holes (42) are respectively located on the four curved cardboards (41), and the four limiting paper pieces (43) are respectively located on the four inner walls of the outer shell (1).