An integrated aluminum foil lunch box

Abstract

This utility model relates to the field of tableware technology and discloses an integrated aluminum foil lunch box, including an aluminum foil lunch box body. A first flange is fixedly installed on the top of the aluminum foil lunch box body, and a sealing ring is fixedly installed on the top of the first flange. A sealing cover is movably installed on the top of the aluminum foil lunch box body, the first flange, and the sealing ring. A heat preservation cover is movably installed on the outside of the aluminum foil lunch box body, and a heat preservation cavity is provided inside the heat preservation cover. A second flange is fixedly installed on the top of the heat preservation cover. The first flange is folded downward, and the longitudinal section of the first flange has an L-shaped structure. The heat preservation cavity is filled with polyurethane foam, which can effectively keep the food warm and prevent users from being burned when handling the lunch box, thus improving the user experience. In addition, multiple anti-tensile ribs are evenly arranged in the heat preservation cavity to improve the lunch box's anti-sinking ability. The second flange, together with the anti-bending frame in the mounting groove, further reinforces the first flange to prevent the first flange from bending due to excessive food weight, ensuring the stability of the food.

Description

Technical Field

[0001] This utility model relates to the field of tableware technology, and in particular to an integrated aluminum foil lunch box. Background Technology

[0002] In the field of tableware technology, with the booming development of the food delivery industry and people’s increasing demands for food quality, the performance and design of lunch boxes have received more and more attention. As one of the commonly used types of lunch boxes, traditional aluminum foil lunch boxes have exposed many problems in actual use.

[0003] Traditional aluminum foil food containers often lack effective insulation, causing food to lose heat very quickly after being placed inside. In winter, hot food cools down shortly after consumers receive their takeout, severely affecting the taste and eating experience and significantly reducing the quality of the food delivery. When the container holds a lot or heavy food, its edges, especially the folded edges, are prone to bending and deformation due to uneven stress. This not only causes the container to deform and affect its appearance but may also cause food to spill, resulting in waste. In actual use, it is common to see consumers spilling food when taking out the container because the folded edges are bent. Utility Model Content

[0004] The purpose of this invention is to provide an integrated aluminum foil lunch box with good heat preservation performance, reliable sealing and high structural strength, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An integrated aluminum foil lunch box includes an aluminum foil lunch box body, a first flange fixedly installed on the top of the aluminum foil lunch box body, a sealing ring fixedly installed on the top of the first flange, a sealing cover movably installed on the top of the aluminum foil lunch box body, the first flange and the sealing ring, a heat preservation cover movably installed on the outside of the aluminum foil lunch box body, a heat preservation cavity is provided inside the heat preservation cover, and a second flange fixedly installed on the top of the heat preservation cover.

[0007] As a further preferred embodiment of this utility model, the first flange is folded downwards, and the longitudinal section of the first flange is L-shaped. The first flange with an L-shaped longitudinal section, together with the sealing protrusion on the first flange, can give the first flange a certain degree of bending resistance.

[0008] As a further preferred embodiment of this utility model, the bottom edge of the sealing cover is provided with a sealing groove that matches the sealing protrusion. When the sealing cover is closed on the first flange and the sealing protrusion, the sealing protrusion is embedded in the sealing groove at the bottom of the sealing protrusion to form a sealing structure.

[0009] As a further preferred embodiment of this utility model, the heat preservation cavity is filled with heat preservation material, and the heat preservation material is polyurethane foam. The heat preservation cavity is set inside the heat preservation cover and filled with heat preservation material, which can keep the food inside the aluminum foil lunch box warm and prevent scalding at the same time.

[0010] As a further preferred embodiment of this utility model, multiple tensile ribs are fixedly installed inside the heat preservation cavity, and the two ends of the tensile ribs extend to one side along the inner cavity of the heat preservation cavity. The multiple tensile ribs (8) are evenly distributed inside the heat preservation cavity. The setting of multiple tensile ribs and the extension of the two ends of the tensile ribs to one side of the heat preservation cavity can, in conjunction with the heat preservation cover, enhance the anti-sinking ability of the aluminum foil lunch box body and ensure the stability of the aluminum foil lunch box body for food.

[0011] As a further preferred embodiment of this utility model, the bottom of the second flange is provided with an installation groove, and an anti-bending frame is fitted in the installation groove. The shape of the anti-bending frame is adapted to the shape of the installation groove. After the aluminum foil lunch box body is inserted into the heat preservation cover, the bottom of its first flange is inserted into the second flange. The bottom of the second flange is also provided with an installation groove, thereby improving the bending resistance of the first flange and preventing the food from spilling due to the weight of the food in the first flange bending and deforming when the aluminum foil lunch box body is moved by hand.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, the insulation cavity is filled with polyurethane foam, which can efficiently keep food warm and prevent users from being burned when handling the food container, thus improving the user experience. In addition, multiple anti-tensile ribs are evenly arranged in the insulation cavity to improve the food container's anti-sinking ability. The second flange, together with the anti-bending frame in the mounting groove, further reinforces the first flange to prevent it from bending due to excessive food weight, ensuring the stability of the food container. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the disassembled structure of the aluminum foil lunch box body and the heat preservation cover of this utility model.

[0016] Figure 3 This is a cross-sectional view of the aluminum foil lunch box body and the heat preservation cover of this utility model;

[0017] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0018] Figure 5 This is a cross-sectional view of the heat insulation cover of this utility model;

[0019] Figure 6 This is a schematic diagram of the tensile reinforcement structure of this utility model.

[0020] In the diagram: 1. Aluminum foil lunch box body; 2. First flange; 3. Sealing protrusion ring; 4. Sealing cover; 5. Insulation cover; 6. Insulation cavity; 7. Second flange; 8. Tensile rib; 9. Mounting groove; 10. Bending frame. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figures 1-6 As shown, the present invention provides an integrated aluminum foil lunch box, including an aluminum foil lunch box body 1, a first flange 2 fixedly installed on the top of the aluminum foil lunch box body 1, a sealing ring 3 fixedly installed on the top of the first flange 2, a sealing cover 4 movably installed on the top of the aluminum foil lunch box body 1, the first flange 2 and the sealing ring 3, a heat preservation cover 5 movably installed on the outside of the aluminum foil lunch box body 1, a heat preservation cavity 6 provided inside the heat preservation cover 5, and a second flange 7 fixedly installed on the top of the heat preservation cover 5.

[0023] like Figures 1-6As shown, the first flange 2 is folded downwards, and the longitudinal section of the first flange 2 is L-shaped. The L-shaped longitudinal section of the first flange 2, together with the sealing protrusion 3 on the first flange 2, enables the first flange 2 to have a certain resistance to bending. The bottom edge of the sealing cover 4 is provided with a sealing groove that matches the sealing protrusion 3. When the sealing cover 4 is closed on the first flange 2 and the sealing protrusion 3, the sealing protrusion 3 is embedded in the sealing groove at the bottom of the sealing protrusion 3 to form a sealing structure. The heat preservation cavity 6 is filled with heat preservation material, and the heat preservation material is polyurethane foam. The heat preservation cavity 6 is set inside the heat preservation cover 5, and the heat preservation cavity 6 is filled with heat preservation material, which can keep the food in the aluminum foil lunch box body 1 warm and prevent scalding at the same time. Multiple tensile ribs 8 are fixedly installed in the heat preservation cavity 6, and the two ends of the tensile ribs 8 are respectively along the inner cavity of the heat preservation cavity 6. Extending to one side, multiple tensile ribs (8) are evenly distributed in the heat preservation cavity 6. The multiple tensile ribs 8 are set, and the two ends of the tensile ribs 8 extend to one side of the heat preservation cavity 6, so as to cooperate with the heat preservation cover 5 to improve the anti-sinking ability of the aluminum foil lunch box body 1 and ensure the stability of the aluminum foil lunch box body 1 in holding food. The bottom of the second flange 7 is provided with an installation groove 9, and the anti-bending frame 10 is installed in the installation groove 9. The shape of the anti-bending frame 10 is adapted to the shape of the installation groove 9. After the aluminum foil lunch box body 1 is inserted into the heat preservation cover 5, the bottom of its first flange 2 is inserted into the second flange 7. The bottom of the second flange 7 is also provided with an installation groove 9, thereby improving the bending resistance of the first flange 2 and preventing the food from spilling due to the bending deformation of the first flange 2 caused by the weight of the food when the aluminum foil lunch box body 1 is moved by hand.

[0024] It should be noted that this utility model is an integrated aluminum foil lunch box. When using the aluminum foil lunch box body 1, food can be directly placed inside the aluminum foil lunch box body 1. Subsequently, the sealing cap 4 can be pressed onto the first flange 2 and the sealing protrusion 3. That is, when the sealing cap 4 is closed, the sealing protrusion 3 is embedded in the sealing groove at the bottom edge of the sealing cap 4, forming a sealing structure, effectively preventing food and soup leakage. Since the heat preservation cavity 6 inside the heat preservation cover 5 is filled with polyurethane foam, the good heat insulation properties of polyurethane foam are used to keep the food inside the aluminum foil lunch box body 1 warm, while also preventing users from being burned when handling the lunch box. Meanwhile, multiple tensile ribs 8 are evenly distributed inside the insulation cavity 6. Their two ends extend to one side along the inner cavity of the insulation cavity 6. When the lunch box is filled with food, the tensile ribs 8, together with the insulation cover 5, enhance the anti-sinking ability of the aluminum foil lunch box body 1, ensuring the stability of the food in the lunch box and preventing the bottom of the lunch box from deforming due to excessive food weight. In addition, when the aluminum foil lunch box body 1 is installed inside the insulation cover 5, the bottom of the first flange 2 is inserted into the second flange 7. The bending frame 10 further enhances the bending resistance of the first flange 2, preventing the first flange 2 from bending due to the weight of the food when the lunch box is moved by hand, thereby preventing the food from spilling.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A one-piece aluminum foil lunch box, characterized in that: The container includes an aluminum foil lunchbox body (1), on which a first flange (2) is fixedly installed. A sealing ring (3) is fixedly installed on the top of the first flange (2). A sealing cover (4) is movably installed on the top of the aluminum foil lunchbox body (1), the first flange (2), and the sealing ring (3). A heat insulation cover (5) is movably installed on the outside of the aluminum foil lunchbox body (1). A heat insulation cavity (6) is provided inside the heat insulation cover (5). The heat insulation cavity (6) is filled with heat insulation material. The insulation cavity (6) is made of polyurethane foam. Multiple tensile ribs (8) are fixedly installed inside the insulation cavity (6). The two ends of the tensile ribs (8) extend to one side along the inner cavity of the insulation cavity (6). The multiple tensile ribs (8) are evenly distributed inside the insulation cavity (6). A second flange (7) is fixedly installed on the top of the insulation cover (5). An installation groove (9) is opened at the bottom of the second flange (7). An anti-bending frame (10) is installed in the installation groove (9). The shape of the anti-bending frame (10) is adapted to the shape of the installation groove (9).

2. The integrated aluminum foil lunch box according to claim 1, characterized in that: The first flange (2) is folded downwards, and the longitudinal section of the first flange (2) has an L-shaped structure.

3. The integrated aluminum foil lunch box according to claim 2, characterized in that: The bottom edge of the sealing cover (4) is provided with a sealing groove that matches the sealing protrusion (3).

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