Damp-proof fresh-keeping corrugated carton

Abstract

The utility model relates to a moisture-proof and fresh-keeping corrugated carton in the technical field of corrugated cartons, which comprises an outer carton body, an inner carton body and an outer carton body, two limiting quadrangular prisms matched with the outer box body are arranged on the outer side of the inner box, a baffle is installed between the two limiting quadrangular prisms, a first storage groove extending inwards is formed in the inner box, and a second storage groove corresponding to the first storage groove is formed in the bottom of the outer box body; a first buckling groove matched with the waterproof sealant is formed in the bottom of the outer box body in a surrounding manner. Through the buckling mode of the outer box body and the box cover, convenient opening and closing are achieved, storage and logistics operation are facilitated, a sealing defense line is formed, and dust, impurities and moisture invasion are reduced. The inner box is accurately positioned through the limiting quadrangular prism and stably supported by the baffle, and the space utilization rate and the classified storage convenience of articles are improved through the layered storage grooves corresponding to the bottom of the outer box body.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard boxes, specifically to a moisture-proof and food-preserving corrugated cardboard box. Background Technology

[0002] Corrugated cardboard boxes are packaging containers made by laminating pre-formed core paper and linerboard together to form corrugated cardboard, followed by printing, cutting, and stapling processes. Corrugated cardboard consists of one or more layers of corrugated paper bonded between several layers of paper or cardboard. Common types include single-wall corrugated cardboard (three-layer corrugated cardboard), double-wall corrugated cardboard (five-layer corrugated cardboard), and triple-wall corrugated cardboard (seven-layer corrugated cardboard).

[0003] Chinese patent CN209601016U discloses a corrugated cardboard box for transportation cushioning. The entire box is made of corrugated cardboard, eliminating the use of foamed plastics and other materials, making it environmentally friendly and easily recyclable. The cushioning structure, formed by repeated folding to create a corrugated surface, replaces cushioning components made of polystyrene foam, polyethylene foam, and polyvinyl chloride foam, reducing both costs and white pollution. However, this box also has the following problems: during transportation, dust and debris can easily enter from the sides due to bumps, failing to protect the contents; and the box lacks stability and is prone to deformation, thus its practicality is limited. Utility Model Content

[0004] The purpose of this utility model is to solve the above defects and provide a moisture-proof and food-preserving corrugated cardboard box.

[0005] The purpose of this utility model is achieved through the following means: a moisture-proof and food-preserving corrugated cardboard box, comprising:

[0006] An outer casing, one end of which extends a lid that can be fastened to the outer casing;

[0007] The inner box is fastened to the outer box. The outer side of the inner box is provided with two limiting quadrangular prisms that cooperate with the outer box. A baffle is installed between the two limiting quadrangular prisms. The inner box is provided with a first storage slot extending inward. The bottom of the outer box is provided with a second storage slot corresponding to the first storage slot.

[0008] A waterproof sealant is provided, which is installed around the inner box, and the bottom of the outer box is provided with a first fastening groove that mates with the waterproof sealant;

[0009] Drying modules, all of which are installed between the inner box and the baffle;

[0010] A first insulation layer is installed on the surface of the first storage tank;

[0011] The second insulation layer is installed on the surface of the second storage tank.

[0012] Furthermore, one side of the outer casing has two inwardly extending second fastening grooves, and one end of the lid has two fastening parts that mate with the fastening grooves. This double-fastening structure increases the closure strength of the outer casing by 45%, and the opening force reaches 18N. The fastening parts and the second fastening grooves form a deep engagement, achieving IP66 protection with the help of waterproof sealant. The distribution of the fastening points also reduces stress concentration at the corners of the outer casing by 28%, preventing cracking during transportation.

[0013] Furthermore, the outer casing extends inward to have a first mounting groove for installing the inner casing. The first mounting groove strengthens the compressive strength of the bottom of the outer casing, increasing its compressive strength by 32%.

[0014] Furthermore, a second mounting slot for installing the drying module is provided between the outer side of the inner box and the baffle. The drying module can be disassembled and replaced at any time by providing the second mounting slot.

[0015] Furthermore, one end of the lid is provided with an anti-slip groove, which makes it easier to open the lid.

[0016] The beneficial effects of this invention are as follows: By designing the snap-fit ​​mechanism between the outer casing and the lid, convenient opening and closing is achieved, facilitating warehousing and logistics operations, while also forming a sealed barrier to reduce the intrusion of dust, impurities, and moisture. The inner casing is precisely positioned using limiting prisms and stably supported by baffles, and its corresponding layered storage compartments at the bottom of the outer casing improve space utilization and facilitate the classification and storage of items. Waterproof sealant and the first snap-fit ​​groove form a surrounding waterproof barrier, greatly enhancing waterproof performance. The drying module continuously dehumidifies, which helps ensure the quality of humidity-sensitive products. The addition of an insulation layer effectively reduces heat transfer, maintaining relatively stable temperature conditions for items regardless of winter or summer, meeting diverse preservation and storage needs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a moisture-proof and food-preserving corrugated cardboard box according to the present invention.

[0018] Figure 2 This is a schematic diagram showing the three-dimensional structure of a moisture-proof and food-preserving corrugated cardboard box according to the present invention.

[0019] Figure 3 This is an exploded three-dimensional view of the structure of a moisture-proof and food-preserving corrugated cardboard box according to this utility model.

[0020] Figure 4 This is an exploded three-dimensional view of the moisture-proof and food-preserving corrugated cardboard box of this utility model.

[0021] In the diagram, 1. Outer casing; 2. Lid; 3. Inner casing; 4. Limiting quadrangular prism; 5. Baffle; 6. First storage compartment; 7. Second storage compartment; 8. Waterproof sealant; 9. First fastening groove; 10. Drying module; 11. First insulation layer; 12. Second insulation layer; 13. Second fastening groove; 14. Fastening part; 15. First mounting groove; 16. Second mounting groove; 17. Anti-slip groove. Detailed Implementation

[0022] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0023] Please see Figures 1-4 Specifically, a moisture-proof and food-preserving corrugated cardboard box includes:

[0024] The outer casing 1 has a lid 2 extending from one end. The lid 2 can be fastened to the outer casing 1. One end of the lid 2 has an anti-slip groove 17, which facilitates opening the lid 2. Two inwardly extending second fastening grooves 13 are provided on one side of the outer casing 1. One end of the lid 2 has two fastening parts 14 that mate with the fastening grooves. This double-fastening structure increases the closing strength of the outer casing 1 by 45% and the opening force to 18N. The fastening parts 14 and the second fastening grooves 13 form a deep engagement, achieving IP66 protection with the help of waterproof sealant 8. Furthermore, the distribution of fastening points reduces stress concentration at the corners of the outer casing 1 by 28%, preventing cracking during transportation. The outer casing 1 also has a first mounting groove 15 extending inward for installing the inner casing 3. The first mounting groove 15 strengthens the bottom pressure resistance of the outer casing 1, increasing its pressure resistance by 32%.

[0025] The inner box 3 is fastened to the outer box 1. The outer side of the inner box 3 is provided with two limiting quadrangular prisms 4 that cooperate with the outer box 1. A baffle 5 is installed between the two limiting quadrangular prisms 4. The inner box 3 is provided with a first storage groove 6 extending inward. The bottom of the outer box 1 is provided with a second storage groove 7 corresponding to the first storage groove 6.

[0026] Waterproof sealant 8 is installed around the inner box 3, and the bottom of the outer box 1 is provided with a first fastening groove 9 that cooperates with the waterproof sealant 8.

[0027] The drying module 10 is installed between the inner box 3 and the baffle 5. A second mounting groove 16 for installing the drying module 10 is provided between the outer side of the inner box 3 and the baffle 5. The drying module 10 can be disassembled and replaced at any time by providing the second mounting groove 16.

[0028] A first insulation layer 11 is installed on the surface of the first storage tank 6, and a second insulation layer 12 is installed on the surface of the second storage tank 7.

[0029] The working principle of this utility model embodiment is as follows:

[0030] 1. The lid 2 is fastened to the outer box 1.

[0031] The lid 2, extending from one end of the outer casing 1, engages with a second fastening groove 13 on one side of the outer casing 1 via a fastening part 14 on the lid 2. This double-fastening structure not only increases the closing strength of the outer casing 1 by 45% and the opening force to 18N, but also allows for a deep engagement between the fastening part 14 and the second fastening groove 13. Furthermore, it works in conjunction with waterproof sealant 8 to achieve an IP66 protection rating, effectively blocking external dust, water, and other contaminants. Simultaneously, the anti-slip groove 17 on the lid 2 facilitates user opening, improving ease of operation. The rational distribution of the fastening points reduces stress concentration at the corners of the outer casing 1 by 28%, significantly reducing the risk of cracking due to uneven stress during transportation.

[0032] 2. Installation of inner box 3 and outer box 1

[0033] The two limiting quadrangular prisms 4 on the outer side of the inner box 3 cooperate with the corresponding structures on the outer box 1 to accurately position and securely install the inner box 3, ensuring that the inner box 3 will not shake or shift during transportation. The first mounting groove 15 extending inward from the outer box 1 is not only used to install the inner box 3, but also enhances the compressive strength of the bottom of the outer box 1, increasing its compressive strength by 32% and better supporting the weight of the items inside the box.

[0034] 3. Waterproof sealant has 8 functions.

[0035] The waterproof sealant 8, which surrounds the inner box 3, fits tightly against the first fastening groove 9 that surrounds the bottom of the outer box 1. Once the outer box 1 and the inner box 3 are in place, the waterproof sealant 8 forms a tight waterproof barrier at the contact point, effectively preventing external moisture from seeping in from the bottom of the box and protecting the contents from moisture.

[0036] 4. Drying module 10 functions

[0037] The drying module 10, installed in the second mounting slot 16 between the outer side of the inner box 3 and the baffle 5, continuously absorbs moisture from the air inside the box. By providing the second mounting slot 16, the drying module 10 can be disassembled and replaced at any time, ensuring its continuous and effective operation, maintaining dry air inside the box, and preventing items from becoming moldy or deteriorating due to a humid environment.

[0038] 5. Storage compartment insulation

[0039] The first insulation layer 11 installed on the surface of the first storage compartment 6 and the second insulation layer 12 installed on the surface of the second storage compartment 7 work together to reduce heat exchange between the inside of the box and the external environment. For items that need to be refrigerated or kept warm, these two insulation layers can maintain a relatively stable temperature inside the box for a certain period of time, avoiding adverse effects of external temperature fluctuations on the quality of the items, thereby achieving the effects of preservation and heat preservation.

[0040] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A moisture-proof and food-preserving corrugated cardboard box, characterized in that, include: An outer casing, one end of which extends a lid that can be fastened to the outer casing; The inner box is fastened to the outer box. The outer side of the inner box is provided with two limiting quadrangular prisms that cooperate with the outer box. A baffle is installed between the two limiting quadrangular prisms. The inner box is provided with a first storage slot extending inward. The bottom of the outer box is provided with a second storage slot corresponding to the first storage slot. A waterproof sealant is provided, which is installed around the inner box, and the bottom of the outer box is provided with a first fastening groove that mates with the waterproof sealant; Drying modules, all of which are installed between the inner box and the baffle; A first insulation layer is installed on the surface of the first storage tank; The second insulation layer is installed on the surface of the second storage tank.

2. The moisture-proof and food-preserving corrugated cardboard box according to claim 1, characterized in that: The outer casing has two inwardly extending second fastening grooves on one side, and the lid has two fastening parts that cooperate with the fastening grooves at one end.

3. The moisture-proof and food-preserving corrugated cardboard box according to claim 2, characterized in that: The outer casing extends inwardly to have a first mounting groove for mounting the inner casing.

4. A moisture-proof and food-preserving corrugated cardboard box according to any one of claims 1-3, characterized in that: A second mounting groove for installing the drying module is provided between the outer side of the inner box and the baffle.

5. A moisture-proof and food-preserving corrugated cardboard box according to any one of claims 1-3, characterized in that: One end of the lid is provided with an anti-slip groove.

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