Divided multifunctional aluminum foil lunch box

Abstract

The utility model relates to the field of aluminium foil lunch box, concretely relates to a partition formula multifunctional aluminium foil lunch box, including lunch box main part, the lunch box main part is integrated structure, the outer periphery of lunch box main part has the flange hollow formed by the most outer layer aluminium foil of it bending, the flange hollow has two parallel outer surfaces, the inside of flange hollow is provided with heat preservation layer, the edge of lunch box main part top is inserted with reinforced steel wire, through setting up the hollow partition in the middle of lunch box main part and the integrated hollow partition of main part, and the hollow sub -partition of extension connection at the both sides of partition, can form independent hollow compartment and hollow sub -compartment flexibly, effectively reduce the condition that different food smell, soup mixed, simultaneously integrated structure does not need additional assembly, has improved the problem that detachable partition connection is loose, is easy to shift, has improved the stability of sub -region and the convenience of use.

Description

Technical Field

[0001] This utility model belongs to the field of aluminum foil lunch boxes, specifically relating to a compartmentalized multifunctional aluminum foil lunch box. Background Technology

[0002] Aluminum foil lunch boxes are widely used in food packaging, food delivery, and home dining due to their excellent thermal conductivity, sealing properties, and environmental recyclability. Their lightweight and portability, as well as their compatibility with microwave ovens, ovens, and other heating devices, perfectly meet the needs of modern fast-paced lifestyles.

[0003] However, most of them are single-cavity, which can easily cause food to have mixed flavors. Removable partitions are troublesome to assemble, loosely connected and easy to shift. They have poor heat preservation and structural performance. Solid outer rings consume a lot of materials and have poor heat preservation. The top edge is easy to deform due to the low strength of aluminum foil. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of aluminum foil lunch boxes in the prior art, such as cumbersome installation of movable partitions, insecure fixing, insufficient heat preservation and structural strength, and easy deformation of the box opening due to the softness of the aluminum foil material, thereby realizing a multi-functional aluminum foil lunch box with partitions.

[0005] To achieve the above-mentioned objectives, the technical solution of this utility model is: a partitioned multifunctional aluminum foil lunch box, comprising a lunch box body, the lunch box body being an integrally molded structure, the outer periphery of the lunch box body having a hollow folded edge formed by bending its outermost aluminum foil, the hollow folded edge having two parallel outer surfaces, the interior of the hollow folded edge being provided with a heat insulation layer, and reinforcing steel wires being inserted through the top edge of the lunch box body.

[0006] In the aforementioned compartmentalized multifunctional aluminum foil lunch box, a hollow partition is provided in the middle of the lunch box body. The hollow partition is integrally formed with the lunch box body and encloses a hollow compartment inside the lunch box body.

[0007] In the aforementioned compartmentalized multifunctional aluminum foil lunch box, extruded heating grooves are provided on both sides of the main body of the lunch box.

[0008] In the aforementioned multi-functional aluminum foil lunch box with partitions, several hollow partitions are connected to both sides of the hollow partition. The end of each hollow partition away from the hollow partition is fixedly connected to the inner wall of the lunch box body. The lunch box body, the hollow partition, and each hollow partition are integrally formed. The bottom of each hollow partition encloses the lunch box body to form a hollow compartment.

[0009] In the aforementioned compartmentalized multifunctional aluminum foil lunch box, the inner wall of the lunch box body is provided with a contact anti-stick layer, which is a food contact anti-stick layer and is composed of a food-grade silicone resin coating.

[0010] In the aforementioned compartmentalized multifunctional aluminum foil lunch box, the insulation layer includes a first insulation layer, which is adapted to the inner wall of the hollow compartment. A first hollow bonding layer adapted to the inner wall of the hollow compartment is provided in the middle of the first insulation layer by extrusion molding.

[0011] In the aforementioned compartmentalized multifunctional aluminum foil lunch box, the insulation layer includes a second insulation layer, which is an integrally molded structure and is adapted to the inner wall of the hollow compartment.

[0012] In the aforementioned compartmentalized multifunctional aluminum foil lunch box, the insulation layer includes a third insulation layer, and a second hollow bonding layer adapted to the inner wall of the hollow compartment is provided in the middle of the third insulation layer by extrusion molding. On both sides of the second hollow bonding layer, compartment bonding layers adapted to the inner wall of the hollow compartment are provided by extrusion molding.

[0013] Compared with the prior art, the partitioned multifunctional aluminum foil lunch box of this utility model has at least the following beneficial effects:

[0014] This utility model of a partitioned multifunctional aluminum foil lunch box, by setting a hollow partition integrally formed with the main body in the middle of the lunch box body, and hollow dividing plates extending and connected to both sides of the partition, can flexibly form independent hollow compartments and hollow dividing compartments, effectively reducing the situation of different foods mixing flavors and soups; at the same time, the one-piece molded structure does not require additional assembly, improves the problem of loose connection and easy displacement of detachable partitions, and enhances the stability of partitioning and ease of use.

[0015] The hollow structure of the folded edge on the outer perimeter of the lunch box reduces the amount of aluminum foil material used and achieves weight reduction compared to the existing solid outer ring. At the same time, it forms a closed heat-insulating cavity, which, together with the internal heat-insulating layer, can significantly reduce heat loss and improve heat preservation time. In addition, the reinforcing steel wires interlaced on the top edge of the main body effectively strengthen the edge structure, reduce the risk of deformation when the aluminum foil lunch box is handled or carried, and extend its service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic front view of the heating tank of this utility model;

[0018] Figure 3 This is a front view schematic diagram of the hollow compartment of this utility model;

[0019] Figure 4 This is a schematic diagram of the hollow partition plate of this utility model;

[0020] Figure 5This is a cross-sectional schematic diagram of the main body of the lunch box of this utility model;

[0021] Figure 6 This is the utility model Figure 5 Enlarged view of part A in the diagram;

[0022] Figure 7 This is a schematic diagram of the first installation of the first insulation layer of this utility model;

[0023] Figure 8 This is a schematic diagram of the hollow folded edge of this utility model.

[0024] Figure 9 This is a schematic diagram of the second installation of the second insulation layer of this utility model;

[0025] Figure 10 This is a schematic diagram of the installation of the second insulation layer of this utility model;

[0026] Figure 11 This is a schematic diagram of the installation of the third insulation layer of this utility model;

[0027] Figure 12 This is a cross-sectional schematic diagram of the contact anti-stick layer of this utility model.

[0028] In the image: 1. Main body of the lunchbox; 101. Non-stick contact layer;

[0029] 2. Hollow partition; 201. Hollow compartment;

[0030] 3. Heating tank;

[0031] 4. Hollow panel; 401. Hollow compartment;

[0032] 5. Reinforcing steel wire; 6. Hollow folded edge;

[0033] 7. First insulation layer; 701. First hollow bonding layer;

[0034] 8. Second insulation layer;

[0035] 9. Third insulation layer; 901. Compartment bonding layer; 902. Second hollow bonding layer. Detailed Implementation

[0036] The following description, in conjunction with the accompanying drawings and specific embodiments, provides a more detailed account of the modular multifunctional aluminum foil lunchbox of this utility model.

[0037] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] This embodiment discloses a multi-functional aluminum foil lunch box with dividers. Aluminum foil lunch boxes have drawbacks such as cumbersome installation and unstable fixing of movable dividers; insufficient heat insulation and structural strength; and the softness of the aluminum foil material leading to easy deformation of the box opening. (Refer to...) Figures 1-12 It mainly includes a lunch box body 1, which is a one-piece molded structure. The outer periphery of the lunch box body 1 has a folded edge hollow 6 formed by bending its outermost aluminum foil. The folded edge hollow 6 has two parallel outer surfaces. An insulation layer is set inside the folded edge hollow 6. Reinforcing steel wires 5 are inserted through the top edge of the lunch box body 1.

[0039] The main body of the lunchbox (1) is manufactured using a one-piece molding process, effectively avoiding the structural weaknesses and heat loss risks caused by seams. The outer perimeter of the main body is formed by bending the outermost layer of aluminum foil to create a hollow 6-folded structure. This structure, with its double parallel outer surface design, forms a cavity shape, achieving both weight reduction and creating a natural heat insulation barrier through the cavity effect. The insulation layer inside the hollow 6-folded structure works synergistically with the cavity structure to build a dual thermal resistance system from the outside in, reducing heat loss through conduction and convection. A reinforcing steel wire (5) is innovatively embedded in the top edge of the main body, enhancing overall structural rigidity and ensuring the lunchbox maintains its shape stability when holding heavy objects, subjected to external pressure, or repeatedly opened and closed.

[0040] First embodiment: Refer to Figure 1 A hollow partition 2 is provided in the middle of the main body 1 of the lunch box. The hollow partition 2 is integrally formed with the main body 1 of the lunch box and encloses the main body 1 of the lunch box to form a hollow compartment 201.

[0041] The first embodiment features a hollow partition 2 extending longitudinally from the center of the main body 1 of the lunchbox. This partition and the main body are integrally formed using the same material and stamping process, ensuring a strong connection between the partition and the main body while avoiding the problems of loosening and deformation caused by traditional spliced ​​partitions, which can lead to partition failure. The hollow structure itself forms a heat buffer layer, which, together with the insulation system around the main body, further optimizes the retention and even distribution of heat within the compartment, improving the functional adaptability and reliability of the lunchbox when holding multiple types of food.

[0042] Second embodiment: Refer to Figure 1-3 The main body of the lunch box 1 has extruded heating grooves 3 on both sides.

[0043] The heating grooves 3 on both sides of the wall are formed into a three-dimensional heat-conducting structure through extrusion molding. The design can actively adapt to the heat source contact surface, such as the surface of the heating plate or the microwave oven turntable. By increasing the effective contact area, the heat conduction efficiency is improved, while avoiding local overheating caused by heat concentration.

[0044] Third embodiment: Refer to Figure 1 , 4 7 and Figure 11 Several hollow partitions 4 are connected to both sides of the hollow partition 2. The end of each hollow partition 4 away from the hollow partition 2 is fixedly connected to the inner wall of the lunch box body 1. The lunch box body 1, the hollow partition 2 and each hollow partition 4 are integrally formed. The bottom of each hollow partition 4 encloses the lunch box body 1 to form a hollow compartment 401.

[0045] The seamless connection between the hollow partition 4 and the inner wall of the main body divides the interior of the food container into multiple independent compartments. This tree-like compartmentalized structure not only ensures the independence of each compartment and avoids cross-contamination of food, but also enhances the overall structure's resistance to deformation through the integrated molding characteristics of the partition, divider, and main body. This ensures that the container maintains its shape stability when holding liquid or solid food, meeting the dual requirements of precise packaging and structural strength.

[0046] Reference Figure 1 and Figure 12 The inner wall of the lunch box body 1 is provided with a contact anti-stick layer 101, which is a food contact anti-stick layer and is made of food-grade silicone resin coating.

[0047] The contact anti-stick layer 101 is made of food-grade silicone resin coating. This material has excellent high temperature stability and chemical inertness. As a food contact anti-stick layer, it ensures that no harmful substances are released under high temperature heating, meets food safety standards, has a reliable anti-stick effect, and has good compatibility with the inner wall of the main body and strong adhesion.

[0048] First embodiment of insulation layer: Refer to Figure 4 , 7 - Figure 9 The insulation layer includes a first insulation layer 7, which is adapted to the inner wall of the hollow compartment 201. A first hollow bonding layer 701 adapted to the inner wall of the hollow compartment 201 by extrusion molding is provided in the middle position of the first insulation layer 7.

[0049] The first insulation layer 7 is precisely matched to the inner wall contour of the hollow compartment 201 through an extrusion molding process. Its core first hollow bonding layer 701 is embedded in the compartment gap with a three-dimensional protruding structure to form a gapless thermal resistance interface, effectively blocking heat loss through air convection. At the same time, the high reflectivity of the aluminum foil substrate is used to reduce heat radiation loss, so as to achieve precise control and long-term maintenance of the temperature inside the compartment.

[0050] Second embodiment of insulation layer: Refer to Figure 1 and Figure 10 The insulation layer includes a second insulation layer 8, which is an integrally formed structure and is adapted to the inner wall of the hollow compartment 201.

[0051] The second insulation layer 8 is made of one-piece molding technology to create a seamless structure. Its curved shape forms a continuous fit with the inner wall of the hollow compartment 201, avoiding the thermal bridging effect caused by the seams of traditional layered insulation layers. Through the uniform thermal resistance distribution of the overall structure, the temperature inside the compartment is kept stable, which is especially suitable for scenarios that require long-term insulation.

[0052] Third embodiment of insulation layer: Refer to Figure 4 , 7 and Figure 11 The insulation layer includes a third insulation layer 9. A second hollow bonding layer 902, which is adapted to the inner wall of the hollow compartment 201 by extrusion molding, is provided in the middle of the third insulation layer 9. On both sides of the second hollow bonding layer 902, there are compartment bonding layers 901, which are adapted to the inner wall of the hollow compartment 401 by extrusion molding.

[0053] The third insulation layer 9 achieves multi-compartment coordinated insulation through a dual-area bonding design. The central second hollow bonding layer 902 closely fits the inner wall of the hollow compartment 201, while the two side compartment bonding layers 901 are precisely embedded in the narrow space of the hollow compartment 401. This ensures the independent insulation effect of each compartment and improves the overall insulation performance and reliability of the lunch box through the uniform heat conduction of the overall structure.

[0054] The working principle of this utility model of a partitioned multifunctional aluminum foil lunch box is as follows: The main body 1 of the lunch box is made of aluminum foil in one piece. The hollow 6 of the outer edge of the main body is formed by bending the outer layer of aluminum foil. The double parallel outer surface design reduces weight while forming a cavity, which, together with the internal insulation layer, reduces heat exchange. The reinforcing steel wire 5 inserted at the top of the main body strengthens the structural strength and prevents deformation.

[0055] First embodiment: The hollow partition 2 in the middle of the main body 1 divides the inside of the box into independent hollow compartments 201, so as to realize food partitioning and prevent cross-contamination of flavors.

[0056] Second embodiment: The extrusion-molded heating grooves 3 on both sides of the main body 1 increase the contact area with the heating source, so that the heat can be quickly and evenly transferred to the food, thereby improving the heating efficiency.

[0057] Third embodiment: Several hollow partitions 4 extend from both sides of the hollow partition 2, and the ends of the partitions are fixed to the main body to form multiple sets of independent hollow compartments 401 to meet the requirements of fine partitioning.

[0058] The insulation layer achieves efficient insulation through precise fitting with the compartment and sub-compartment structure. Each embodiment focuses on different applicable scenarios:

[0059] The first insulation layer 7 is adapted to the inner wall of the hollow compartment 201. The first hollow bonding layer 701 in the middle is precisely matched and tightly bonded, blocking heat loss through the dual effect of the hollow structure and insulation material.

[0060] Second insulation layer 8: The one-piece molding design can fit the inner wall of the hollow compartment 201, simplifying assembly.

[0061] The third insulation layer 9: the middle second hollow bonding layer 902 is adapted to the hollow compartment 201, and the two side compartment bonding layers 901 are matched with the hollow compartment 401, so as to achieve synchronous insulation of the compartment and the compartment.

[0062] It should be noted that, in actual implementation, the structure depicted in the accompanying drawings is not a fixed or unchanging embodiment. The components of the embodiments of this invention described and shown in these drawings can typically be arranged and designed in various different configurations. Furthermore, the accompanying drawings and abstract drawings are merely illustrative and do not represent the specific structure or actual quantity in a concrete implementation.

[0063] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The use of terms such as "a" or "an" in this specification and claims does not necessarily indicate a limitation on quantity. Terms such as "comprising" or "including" mean that the element or component preceding the word encompasses the element or component listed following the word and its equivalents, without excluding other elements or components. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0064] The exemplary embodiments of the present invention have been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations can be made to the various technical features and structures proposed by the present invention without exceeding the protection scope of the present invention.

Claims

1. A compartmentalized multifunctional aluminum foil lunch box, comprising a lunch box body (1), characterized in that, The main body (1) of the lunch box is an integrally molded structure. The outer periphery of the main body (1) has a folded hollow (6) formed by bending its outermost aluminum foil. The folded hollow (6) has two parallel outer surfaces. The interior of the folded hollow (6) is provided with a heat insulation layer. The top edge of the main body (1) is interspersed with reinforcing steel wires (5).

2. The compartmentalized multifunctional aluminum foil lunch box according to claim 1, characterized in that: A hollow partition (2) is provided in the middle of the main body (1) of the lunch box. The hollow partition (2) is integrally formed with the main body (1) of the lunch box and forms a hollow compartment (201) inside the main body (1).

3. The compartmentalized multifunctional aluminum foil lunch box according to claim 1, characterized in that: The main body of the lunch box (1) is provided with extruded heating grooves (3) on both sides of the main body of the lunch box (1).

4. The compartmentalized multifunctional aluminum foil lunch box according to claim 2, characterized in that: The hollow partition (2) is connected to several hollow partitions (4) on both sides. The end of each hollow partition (4) away from the hollow partition (2) is fixedly connected to the inner wall of the lunch box body (1). The lunch box body (1), the hollow partition (2) and each hollow partition (4) are integrally formed. The bottom of each hollow partition (4) is enclosed in the lunch box body (1) to form a hollow compartment (401).

5. The compartmentalized multifunctional aluminum foil lunch box according to claim 1, characterized in that: The inner wall of the main body (1) of the lunch box is provided with a contact anti-stick layer (101), which is a food contact anti-stick layer and is composed of a food-grade silicone resin coating.

6. The compartmentalized multifunctional aluminum foil lunch box according to claim 2, characterized in that: The insulation layer includes a first insulation layer (7), which is adapted to the inner wall of the hollow compartment (201). A first hollow bonding layer (701) adapted to the inner wall of the hollow compartment (201) is provided in the middle position of the first insulation layer (7) by extrusion molding.

7. The compartmentalized multifunctional aluminum foil lunch box according to claim 2, characterized in that: The insulation layer includes a second insulation layer (8), which is an integrally formed structure and is adapted to the inner wall of the hollow compartment (201).

8. The compartmentalized multifunctional aluminum foil lunch box according to claim 4, characterized in that: The insulation layer includes a third insulation layer (9), and a second hollow bonding layer (902) adapted to the inner wall of the hollow compartment (201) by extrusion molding is provided in the middle of the third insulation layer (9). On both sides of the second hollow bonding layer (902), there are compartment bonding layers (901) adapted to the inner wall of the hollow compartment (401) by extrusion molding.

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