Light-weight high-strength multi-cell meal box

By using a hollow grid structure design, the problem of easy damage to traditional lunch boxes during transportation is solved, and the structural strength and impact resistance are achieved, meeting the safety and durability of modern people.

CN222898512UActive Publication Date: 2025-05-27SUZHOU UNISUPPLY IND CO LTD

Patent Information

Application Number
CN202421710807.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-19
Publication Date
2025-05-27
Estimated Expiration
2034-07-19

AI Technical Summary

Technical Problem

Traditional disposable lunch boxes are easily deformed and damaged due to impact, vibration and pressure during transportation, resulting in food leakage, which cannot meet the safety and durability of modern people.

Method used

A lightweight high-strength multi-grid lunch box designed with a hollow mesh structure is formed by fixing the first and second mesh on the outer and inner surfaces of the lunch box to form a multi-layer hollow mesh structure, which improves the structural strength and impact resistance of the lunch box.

Benefits of technology

Reduces the overall weight of the lunch box, while improving structural strength, can buffer accidental impacts during logistics, reduce damage and economic losses, and be more stable and safe during loading and unloading and stacking.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222898512U_ABST
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Abstract

The utility model belongs to the technical field of meal boxes, in particular to a light-weight high-strength multi-cell meal box, which comprises a meal box main body, the meal box main body comprises a box body and a box cover buckled at the top end of the box body, the box body is provided with a plurality of mutually independent meal storage cells, the meal box main body comprises a meal box outer layer and a meal box inner layer, a first grid body is fixed on the surface of the meal box outer layer; a meal box inner layer, wherein a second grid body is fixed on the surface of the meal box inner layer; according to the utility model, the lunch box main body adopts the hollow grid structure and adopts the multi-layer hollow grid structure design, so that the overall weight of the lunch box main body can be greatly reduced, meanwhile, the structural strength of the lunch box main body can be improved, the hollow grid structure has buffering and energy-absorbing effects, and the damage caused by accidental impact in the logistics process is reduced; therefore, economic loss is reduced, and loading, unloading and stacking are more stable and safer.
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Description

Technical Field

[0001] The utility model belongs to the technical field of lunch boxes, and particularly relates to a lightweight and high-strength multi-compartment lunch box. Background Art

[0002] A plastic lunch box is a plastic container made of food-grade plastic raw materials for the convenience of taking food out. With the improvement of people's living standards, the requirements for food packaging containers are also getting higher and higher. Traditional disposable lunch boxes have problems such as heavy weight, easy damage, and intolerance to high temperatures, and cannot meet the needs of modern people.

[0003] With the increasing attention of consumers to health, people are concerned about whether the materials used in plastic lunch boxes themselves are healthy. Materials that are hygienic and safe are harmless to the human body, such as PC materials, PE materials, and PP materials. The more common plastic lunch box material is PP material.

[0004] It is retrieved that in the prior art, the Chinese utility model patent with the authorization announcement number CN219438406U discloses "a multi-compartment lunch box", which includes a lunch box main body. A tableware area and a containing area are provided on the lunch box main body. The number of the containing areas is at least two. A fixing strip is fixedly installed on the outer side of the lunch box main body. The fixing strip is made of a transparent material. One side of the fixing strip is of an open design. A printing plate is inserted and installed inside the fixing strip. Heat insulation components are provided on both sides of the lunch box main body to prevent the heat of the food inside the lunch box main body from causing the temperature of the lunch box main body to rise.

[0005] Including the multi-compartment lunch boxes in the prior art as described above, although they can meet the general daily use requirements, in actual use, especially during transportation, the lunch box may be impacted, vibrated, and pressured from all directions, and the lunch box is very easy to deform and damage, resulting in the leakage of the internal food. For example, food leakage incidents caused by the quality problems of lunch boxes during the delivery of takeaway meals are not uncommon.

[0006] To solve the above problems, a lightweight and high-strength multi-compartment lunch box is proposed in this application. Utility Model Content

[0007] To solve the above problems existing in the prior art, the utility model provides a lightweight and high-strength multi-compartment lunch box, which has the characteristics of convenient use and high safety performance.

[0008] To achieve the above purpose, the utility model provides the following technical solution: A lightweight and high-strength multi-compartment lunch box, including a lunch box main body, the lunch box main body includes a box body and a box cover buckled on the top of the box body. A plurality of independent meal storage compartments are provided on the box body. The lunch box main body includes:

[0009] The outer layer of the lunch box, on the surface of the outer layer of the lunch box, a first grid body is fixed;

[0010] The inner layer of the lunch box, on the surface of the inner layer of the lunch box, a second grid body is fixed.

[0011] As a preferred technical solution of the present utility model, the materials of the box body and the box cover are the same, and are both one of PC, PE, PP, PET or PS.

[0012] As a preferred technical solution of the present utility model, the materials of the box body and the box cover are the same, and are both PP.

[0013] As a preferred technical solution of the present utility model, on the outer side surface of the box body, there are a plurality of uniformly distributed reinforcing ribs.

[0014] As a preferred technical solution of the present utility model, it further includes:

[0015] A second extended edge, the second extended edge is located at the edge position of the box cover, the cross-section of the second extended edge is in a "ji" shape, and the inner side of the second extended edge is a card slot;

[0016] A first extended edge, the first extended edge is located at the edge position of the box body, and the first extended edge is embedded in the card slot.

[0017] As a preferred technical solution of the present utility model, it further includes:

[0018] An auxiliary edge, the auxiliary edge is located at the edge position of the second extended edge.

[0019] As a preferred technical solution of the present utility model, it further includes:

[0020] A protective frame, the protective frame is fixed to the bottom surface of the box cover, and the protective frame is a hollow trapezoid structure with a larger upper part and a smaller lower part.

[0021] As a preferred technical solution of the present utility model, it further includes:

[0022] A sealing ring, the sealing ring is fixed to the bottom end of the outer side surface of the protective frame, the cross-section of the sealing ring is an inverted "L" shape structure, and there is a deformation groove between the vertical part of the sealing ring and the protective frame.

[0023] Compared with the prior art, the beneficial effects of the present utility model are:

[0024] In the present utility model, the main body of the lunch box adopts a hollow grid structure and is designed with a multi-layer hollow grid structure, which can greatly reduce the overall weight of the main body of the lunch box and improve the structural strength of the main body of the lunch box at the same time. The hollow grid structure has a buffering and energy absorption effect, reducing damage caused by accidental impacts during the logistics process, thereby reducing economic losses, and being more stable and safe during loading, unloading and stacking.

[0025] Some additional advantages and beneficial effects of this application will be given in part in the following description, some will become obvious from the following description, or will be understood through the practice of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0027] Figure 1 is an isometric structural schematic diagram of the present utility model;

[0028] Figure 2 is a partial sectional structural schematic diagram of the present utility model;

[0029] Figure 3 is an unfolded structural schematic diagram of the main body of the lunch box in the present utility model;

[0030] Figure 4 is for the present utility model Figure 2 an enlarged structural schematic diagram of part A therein;

[0031] Figure 5 is an isometric structural schematic diagram of the lid of the lunch box in the present utility model;

[0032] Figure 6 is for the present utility model Figure 5 an enlarged structural schematic diagram of part B therein.

[0033] In the figure: 1. Main body of the lunch box; 11. Box body; 111. Reinforcing rib; 112. First extended edge; 12. Lid; 121. Second extended edge; 1211. Card slot; 1212. Auxiliary edge; 122. Protection frame; 123. Sealing ring; 124. Deformation groove; 101. Outer layer of the lunch box; 1011. First grid body; 102. Inner layer of the lunch box; 1021. Second grid body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0035] Please refer to Figures 1 - 6 , the present utility model provides the following technical solutions: a lightweight and high-strength multi-compartment lunch box, including a lunch box main body 1, the lunch box main body 1 includes a box body 11 and a box cover 12 buckled on the top of the box body 11, and there are a plurality of independent food storage compartments on the box body 11. The lunch box main body 1 includes: a lunch box outer layer 101 and a lunch box inner layer 102.

[0036] Further, as Figures 1 - 3 shown, in this embodiment, a first grid body 1011 is fixed on the surface of the lunch box outer layer 101, and a second grid body 1021 is fixed on the surface of the lunch box inner layer 102. After adopting the above scheme, the lunch box main body 1 of the present utility model adopts a hollow grid structure, and a multi-layer hollow grid structure design is adopted, which can greatly reduce the overall weight of the lunch box main body 1, and at the same time can improve the structural strength of the lunch box main body 1. The hollow structures of the first grid body 1011 and the second grid body 1021 have a buffering and energy absorption effect, reducing damage caused by accidental impacts during the logistics process, thereby reducing economic losses, and being more stable and safe during loading, unloading and stacking.

[0037] It should be noted that the lunch box main body 1 of the present utility model is preferably processed by injection molding. The injection molding process can cooperate with the mold to process complex structures.

[0038] Optionally, as Figure 1 and Figure 2 shown, in this embodiment, the box body 11 and the box cover 12 are made of the same material, which is one of PC, PE, PP, PET or PS, and is a food safety grade material that can be directly and safely contacted with food, and is a common material for food lunch boxes.

[0039] Optionally, as Figure 1 and Figure 2 shown, in this embodiment, the box body 11 and the box cover 12 are made of the same material, which is PP, that is, polypropylene material, which is often used to make food lunch boxes and food packaging containers. The food lunch box made of polypropylene material has high strength and rigidity, and at the same time has good impact resistance. At the same time, the polypropylene material is non-toxic and harmless and can be used at high temperatures without generating harmful substances in a high-temperature environment. Therefore, the food lunch box made of polypropylene material can be directly heated in a microwave oven.

[0040] Preferably, as shown by Figure 1 , Figure 2 and Figure 4 , in this embodiment, there are a plurality of uniformly distributed reinforcing ribs 111 on the outer side surface of the box body 11, further improving the structural strength and impact resistance of the box body 11.

[0041] Preferably, as shown by Figure 1 , Figure 2 and Figure 4 , in this embodiment, it further includes: a second extended border 121 and a first extended border 112. The second extended border 121 is located at the edge of the box cover 12, and the cross-section of the second extended border 121 is in a "ji" shape. The inner side of the second extended border 121 is a clamping groove 1211. The first extended border 112 is located at the edge of the box body 11, and the first extended border 112 is embedded in the clamping groove 1211. After adopting the above solution, after the box cover 12 is buckled on the top of the box body 11, the first extended border 112 is embedded in the clamping groove 1211 to form a clamping connection, improving the connection stability between the box cover 12 and the box body 11.

[0042] Preferably, as shown by Figure 1 , Figure 2 and Figure 4 , in this embodiment, it further includes: an auxiliary border 1212. The auxiliary border 1212 is located at the edge of the second extended border 121, facilitating the opening of the box cover 12 by providing the auxiliary border 1212.

[0043] Preferably, as shown by Figure 1 , Figure 2 , Figure 5 and Figure 6 , in this embodiment, it further includes: a protective frame 122. The protective frame 122 is fixed to the bottom surface of the box cover 12, and the protective frame 122 is a hollow trapezoidal structure with a larger upper part and a smaller lower part. After adopting the above solution, after the box cover 12 is buckled on the top of the box body 11, the protective frame 122 will be partially embedded in the food storage compartment, preventing the food from spilling due to shaking.

[0044] Preferably, as shown by Figure 1 , Figure 2 , Figure 5 and Figure 6 , in this embodiment, it further includes: a sealing ring 123. The sealing ring 123 is fixed to the bottom end of the outer side surface of the protective frame 122. The cross-section of the sealing ring 123 is an inverted "L" shape structure, and there is a deformation groove 124 between the vertical part of the sealing ring 123 and the protective frame 122. After adopting the above solution, after the box cover 12 is buckled on the top of the box body 11, the protective frame 122 will be partially embedded in the food storage compartment, and at the same time, the sealing ring 123 can reliably abut against the inner wall of the food storage compartment, forming a limit for the food, preventing the food from spilling due to shaking.

[0045] Components not described in detail in this article are prior art.

[0046] The working principle and usage process of the present utility model: The lunch box main body 1 of the present utility model adopts a hollow grid structure and is designed with a multi-layer hollow grid structure, which can greatly reduce the overall weight of the lunch box main body 1 and at the same time improve the structural strength of the lunch box main body 1. The hollow structures of the first grid body 1011 and the second grid body 1021 have buffering and energy absorption effects, reducing damage caused by accidental impacts during the logistics process, thereby reducing economic losses, and being more stable and safe during loading, unloading and stacking;

[0047] The lunch box main body 1 is made of polypropylene material, which has high strength and rigidity, and at the same time has good impact resistance, is non-toxic and harmless, and can be used at high temperatures;

[0048] Through the provided protective frame 122 and sealing ring 123, after the box cover 12 is buckled on the top of the box body 11, the protective frame 122 will partially embed into the meal storage grid, and at the same time the sealing ring 123 can reliably abut against the inner wall of the meal storage grid to form a limit for the meal, avoiding the meal from spilling due to shaking.

[0049] Finally, it should be noted that: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A lightweight, high-strength, multi-grid lunch box, comprising a lunch box body (1), wherein the lunch box body (1) comprises a box body (11) and a box cover (12) buckled on the top of the box body (11), wherein the box body (11) has a plurality of mutually independent food storage grids, characterized in that: The lunch box body (1) includes: An outer layer of the lunch box (101), on the surface of which a first grid body (1011) is fixed; An inner layer of the lunch box (102), on the surface of which a second grid body (1021) is fixed.

2. The lightweight and high-strength multi-compartment lunch box according to claim 1, characterized in that: The box body (11) and the box cover (12) are made of the same material, which is one of PC, PE, PP, PET or PS.

3. The lightweight and high-strength multi-compartment lunch box according to claim 2, characterized in that: The box body (11) and the box cover (12) are made of the same material, which is PP.

4. The lightweight and high-strength multi-compartment lunch box according to claim 1, characterized in that: On the outer side surface of the box body (11), there are a plurality of uniformly distributed reinforcing ribs (111).

5. The lightweight and high-strength multi-compartment lunch box according to claim 1, characterized in that: It further includes: A second extended edge (121), the second extended edge (121) is located at the edge of the box cover (12), the cross-section of the second extended edge (121) is in a "ji" shape, and the inner side of the second extended edge (121) is a clamping groove (1211); A first extended edge (112), the first extended edge (112) is located at the edge of the box body (11), and the first extended edge (112) is embedded in the clamping groove (1211).

6. The lightweight and high-strength multi-compartment lunch box according to claim 5, characterized in that: It further includes: An auxiliary edge (1212), the auxiliary edge (1212) is located at the edge of the second extended edge (121).

7. The lightweight and high-strength multi-compartment lunch box according to claim 1, characterized in that: It further includes: A protective frame (122), the protective frame (122) is fixed to the bottom surface of the box cover (12), and the protective frame (122) is a hollow trapezoid structure with a larger upper part and a smaller lower part.

8. The lightweight and high-strength multi-compartment lunch box according to claim 7, characterized in that: It further includes: A sealing ring (123), the sealing ring (123) is fixed to the bottom end of the outer side surface of the protective frame (122), the cross-section of the sealing ring (123) is in an inverted "L" shape structure, and there is a deformation groove (124) between the vertical part of the sealing ring (123) and the protective frame (122).

Citation Information

Patent Citations

  • Multi-cell lunch box

    CN219438406U

Cited By

  • Lightweight high-strength paper meal box suitable for aviation meal

    CN122426459A