A type of aluminum foil lunch box with mesh-like ribs

Abstract

This application relates to an aluminum foil lunchbox with mesh-like ribs, belonging to the technical field of packaging boxes, and includes a box body and a lid. This application utilizes the cooperative action of a first mesh-like rib, a second mesh-like rib, and diagonal ribs. The first mesh-like rib, with its higher mesh unit density, enhances the bottom support strength, effectively preventing dents and deformation caused by food weight and leakage of soup. The cooperative action between the second mesh-like rib and the diagonal rib improves resistance to lateral forces. Simultaneously, the second mesh-like rib uses a low-density mesh unit density to prevent sidewall bulging or collapse during transport and stacking. The overall design achieves functional adaptation of ribs in different parts, improving material utilization and reducing the weight of the lunchbox. Furthermore, the internal dividing mesh-like ribs create independent cavities, preventing food odor mixing and enhancing the overall stability of the box. This synergistic approach further improves the practicality of the aluminum foil lunchbox.

Description

Technical Field

[0001] This application relates to the field of packaging box technology, and in particular to an aluminum foil lunch box using a grid-like ribbed design. Background Technology

[0002] Aluminum foil food containers are widely used in food packaging and takeout due to their lightweight, environmental friendliness, recyclability, and high-temperature resistance. Existing technologies utilize a grid-like rib structure formed by intersecting horizontal and vertical ribs on the bottom and side walls of the container to improve its strength and resistance to deformation. This addresses the issues of deformation and leakage inherent in traditional flat or simple folded-edge structures when holding hot, juicy foods.

[0003] However, the grid unit size, rib height, and width of the bottom and side walls of existing aluminum foil lunch boxes are usually the same. However, the bottom of the box, as the area that directly bears food, does not have sufficient support strength due to the uniform grid. It is prone to denting and deformation due to excessive local stress, which can lead to leakage of soup. At the same time, the side walls, as the main stress-bearing surface, need to resist lateral compression during transportation and stacking. However, the distribution of ribs in the uniform grid is not optimized for lateral forces. It is prone to bulging or collapse of the side walls due to uneven stress. The stress requirements of the uniform grid ribs cannot be adapted to the functions of different parts of different aluminum foil lunch boxes, resulting in low material utilization, increased overall weight of the lunch box, and reduced practicality of aluminum foil lunch boxes. Utility Model Content

[0004] The purpose of this application is to provide an aluminum foil lunch box with grid-like ribs, in which the grid ribs in different parts of the whole are adapted to their respective functions, thereby improving material utilization, reducing the overall weight of the lunch box, enhancing the practicality of the aluminum foil lunch box, and solving the problems mentioned in the background art.

[0005] This application provides an aluminum foil lunchbox with a grid-like ribbed design, employing the following technical solution: It includes a box body and a lid. The box body is composed of a bottom and side walls. The interior of the box body is provided with a first grid-like ribbed design and a second grid-like ribbed design. The first grid-like ribbed design is located on the inner side of the bottom of the box body, and the second grid-like ribbed design is located on the inner side of the side walls of the box body. Both the first and second grid-like ribbed designs include transverse and longitudinal ribbed design. The transverse and longitudinal ribbed design are interlaced to form multiple grid units. The grid unit density of the first grid-like ribbed design is greater than that of the second grid-like ribbed design. Multiple diagonal ribbed design are provided on the inner side of each of the four corners of the second grid-like ribbed design. Each diagonal ribbed design is fixedly connected to both the transverse and longitudinal ribbed design of the second grid-like ribbed design.

[0006] By adopting the above technical solution, and through the coordinated action of the first grid-like ribs, the second grid-like ribs, and the diagonal ribs, the high-density grid units of the first grid-like ribs effectively enhance the bottom support strength, enabling it to better bear the weight of food and prevent dents and deformations due to excessive local stress, thus reducing the risk of soup leakage. The second grid-like ribs, in conjunction with the diagonal ribs, optimize the rib distribution. Simultaneously, the low-density grid units of the second grid-like ribs enhance resistance to lateral forces, effectively preventing bulging or collapse of the sidewalls due to uneven stress during transportation and stacking. The grid ribs in different parts of the container are matched to their respective functions, improving material utilization, reducing the overall weight of the lunchbox, and enhancing the practicality of the aluminum foil lunchbox.

[0007] Preferably, the inner side of the box body is provided with dividing grid-like ribs, which divide the inner side of the box body into multiple independent cavities. The outer side of the dividing grid-like ribs is fixedly connected to the outer side of the second grid-like rib and the upper side of the first grid-like rib, respectively. The grid unit density of the dividing grid-like ribs is the same as that of the second grid-like rib.

[0008] By adopting the above technical solution, the aforementioned dividing grid-like ribs divide the interior of the box into multiple independent cavities, enabling the categorized storage of different foods and preventing cross-contamination of flavors. At the same time, the connection between the dividing grid-like ribs and the second and first grid-like ribs further enhances the stability of the overall structure of the box.

[0009] Preferably, each of the accommodating cavities is provided with an insulation layer on its inner side, and the outer side of the insulation layer is bonded to the inner side of the first grid-like rib and the inner side of the second grid-like rib.

[0010] By adopting the above technical solution, the insulation layer can effectively reduce heat transfer, play a good role in keeping the food inside the box warm, extend the food's heat preservation time, and meet the user's needs for food temperature.

[0011] Preferably, the interior of the box is provided with an aluminum foil layer, the shape of which is adapted to the cavity, and the outer side of the aluminum foil layer is adhered to the inner side of the insulation layer.

[0012] By adopting the above technical solution, the aluminum foil layer can ensure the airtightness of the box and prevent the soup from leaking out. At the same time, the aluminum foil layer can also play a certain role in moisture protection and oxidation prevention, which helps to maintain the freshness and quality of food.

[0013] Preferably, the outer side of the aluminum foil layer is provided with an outward folded edge, the upper side of the outward folded edge is fixedly connected to a vertical folded edge, the outer side of the vertical folded edge is fixedly connected to a semi-circular protrusion, and the outer side of the box cover is provided with a slot.

[0014] By adopting the above technical solution, the combination of outward folding edge, vertical folding edge and semi-circular protrusion with slot can enable the box body and lid to be quickly connected, and a tight connection can be achieved when the two are closed, effectively preventing the lunch box from being accidentally opened during transportation or use, and improving the sealing and safety of the lunch box.

[0015] Preferably, the aluminum foil layer, the outward folded edge, the vertical folded edge, and the semi-circular protrusion are integrally formed.

[0016] By adopting the above technical solution, the integrated structure of the aluminum foil layer, outward folded edge, vertical folded edge, and semi-circular protrusion reduces the number of connecting parts, improves the overall strength and stability of the structure, reduces the risk of damage due to loose connections between parts, and simplifies the production process and improves production efficiency.

[0017] Preferably, the size of the slot is adapted to the size of the vertical fold, and the outer side of the vertical fold is inserted into the inner side of the slot.

[0018] By adopting the above technical solution, the size of the slot and the size of the vertical folded edge are matched so that the vertical folded edge can be smoothly inserted into the slot, ensuring the accuracy and stability of the connection between the box body and the lid, so that the two can fit tightly together, further enhancing the sealing of the lunch box.

[0019] Preferably, the slot has a groove inside, the groove and the vertical folded edge are engaged, and the inner wall shape of the groove is adapted to the outer shape of the vertical folded edge.

[0020] By adopting the above technical solution, the interlocking connection between the groove and the vertical folded edge further enhances the connection strength between the box body and the lid, preventing them from easily separating during use and ensuring that the lunch box maintains a good sealing state under various circumstances.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] This aluminum foil lunchbox employs a mesh-like rib design. Through the coordinated action of a first mesh-like rib, a second mesh-like rib, and diagonal ribs, the first mesh-like rib, with its higher mesh unit density, enhances the bottom support strength, effectively preventing dents and deformation caused by food weight and preventing leakage of soup. The second mesh-like rib, with its lower mesh unit density, improves resistance to lateral forces. Furthermore, the second mesh-like rib, using a lower mesh unit density, prevents sidewall bulging or collapse during transport and stacking. This overall design achieves functional adaptation of ribs in different areas, improving material utilization and reducing the weight of the lunchbox. The internal dividing mesh-like ribs create independent cavities, preventing food odor mixing and enhancing the overall stability of the box. This synergistic design further enhances the practicality of the aluminum foil lunchbox. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 This is a schematic diagram of the separation structure of the box body and the box lid in this application;

[0025] Figure 3 This is a cross-sectional structural diagram of the entire application;

[0026] Figure 4 For this application Figure 3 Enlarged structural diagram at point A;

[0027] Figure 5 This is a three-dimensional structural diagram of the first grid-like rib, the second grid-like rib, the oblique rib, and the separating grid-like rib of this application.

[0028] In the picture:

[0029] 1. Box body; 2. Box lid; 3. First grid-like rib; 4. Second grid-like rib; 5. Diagonal rib; 6. Insulation layer; 7. Aluminum foil layer; 8. Outward folded edge; 9. Vertical folded edge; 10. Semi-circular protrusion; 11. Separating grid-like rib; 12. Slot; 13. Groove. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0031] Example 1: An aluminum foil lunch box with mesh-like ribs, please refer to... Figure 1 , Figure 3 and Figure 5The box includes a box body 1 and a lid 2. The box body 1 is composed of a bottom and side walls. The interior of the box body 1 is provided with a first mesh-like rib 3 and a second mesh-like rib 4. The first mesh-like rib 3 is located on the inner side of the bottom of the box body 1. The first mesh-like rib 3 uses high-density mesh units, effectively enhancing the bottom support strength, better bearing the weight of food, preventing dents and deformation due to excessive local stress, and reducing the risk of soup leakage. The second mesh-like rib 4 is located on the inner side of the side wall of the box body 1. Both the first mesh-like rib 3 and the second mesh-like rib 4 include transverse and longitudinal ribs. The interior of the box body 1 is provided with a dividing mesh-like rib 11, which divides the interior of the box body 1 into multiple independent cavities. The outer side of the dividing mesh-like rib 11 is fixedly connected to the outer side of the second mesh-like rib 4 and the upper side of the first mesh-like rib 3, respectively. The mesh unit density of the dividing mesh-like rib 11 is similar to that of the second mesh-like rib 4. With the same degree of separation, the aforementioned dividing grid-like ribs 11 divide the interior of the box 1 into multiple independent cavities, enabling the classified storage of different foods and preventing cross-contamination of flavors. Simultaneously, the connection between the dividing grid-like ribs 11 and the second grid-like ribs 4 and the first grid-like ribs 3 further enhances the overall structural stability of the box 1. The transverse and longitudinal ribs are interwoven to form multiple grid units. The grid unit density of the first grid-like rib 3 is greater than that of the second grid-like rib 4. Multiple diagonal ribs 5 are provided on the inner side of each of the four corners of the second grid-like rib 4. The aforementioned second grid-like rib 4, in conjunction with the diagonal ribs 5, optimizes the rib distribution. Furthermore, the second grid-like rib 4 uses low-density grid units, enhancing its resistance to lateral forces. During transportation and stacking, this effectively prevents the sidewalls from bulging or collapsing due to uneven stress. Each diagonal rib 5 is fixedly connected to both the transverse and longitudinal ribs of the second grid-like rib 4.

[0032] Example 2: An aluminum foil lunch box with mesh-like ribs, please refer to... Figure 2 and Figure 3 Each cavity has an insulation layer 6 on its inner side. The outer side of the insulation layer 6 is bonded to the inner side of the first mesh rib 3 and the inner side of the second mesh rib 4. The insulation layer 6 can effectively reduce heat transfer and keep the food in the box 1 warm, extending the food's heat retention time and meeting the user's temperature requirements. The box 1 has an aluminum foil layer 7 inside. The shape of the aluminum foil layer 7 is adapted to the cavity. The outer side of the aluminum foil layer 7 is bonded to the inner side of the insulation layer 6. The aluminum foil layer 7 can ensure the airtightness of the box 1 and prevent the soup from leaking. At the same time, the aluminum foil layer 7 can also play a certain role in moisture prevention and oxidation prevention, which helps to maintain the freshness and quality of the food.

[0033] Please refer to Figure 2 , Figure 3 and Figure 4 The outer side of the aluminum foil layer 7 is provided with an outwardly flared edge 8, and a vertical flared edge 9 is fixedly connected to the upper side of the outwardly flared edge 8. A semi-circular protrusion 10 is fixedly connected to the outer side of the vertical flared edge 9. A slot 12 is provided on the outer side of the lid 2. By utilizing the cooperation of the outwardly flared edge 8, the vertical flared edge 9, and the semi-circular protrusion 10 with the slot 12, the box body 1 and the lid 2 can be quickly connected, and a tight connection can be achieved when the two are closed, effectively preventing the lunch box from being accidentally opened during transportation or use, improving the sealing and safety of the lunch box. The aluminum foil layer 7, the outwardly flared edge 8, the vertical flared edge 9, and the semi-circular protrusion 10 are integrally formed. The integrally formed structure of the aluminum foil layer 7, the outwardly flared edge 8, the vertical flared edge 9, and the semi-circular protrusion 10 reduces the number of connecting parts, improves the strength and stability of the overall structure, and reduces damage caused by weak connections of parts. This design reduces the risk of defects while simplifying the production process and improving efficiency. The dimensions of the slot 12 and the vertical folded edge 9 are matched, with the outer side of the vertical folded edge 9 inserted into the inner side of the slot 12. This matching ensures that the vertical folded edge 9 can be smoothly inserted into the slot 12, guaranteeing the accuracy and stability of the connection between the box body 1 and the lid 2. This allows the two to fit tightly together, further enhancing the sealing of the lunchbox. The slot 12 has a groove 13 inside, which engages with the vertical folded edge 9. The inner wall shape of the groove 13 matches the outer shape of the vertical folded edge 9. This engagement further strengthens the connection between the box body 1 and the lid 2, preventing them from easily separating during use and ensuring that the lunchbox maintains a good seal under all circumstances.

[0034] The implementation principle of this application embodiment is as follows: The first mesh-like ribs 3 at the bottom of the box body 1 have a higher mesh unit density, effectively dispersing the pressure generated by the weight of the food, providing stable support for the food inside the box, preventing the bottom from denting and deforming due to excessive local stress, and avoiding leakage of soup. Then, the second mesh-like ribs 4 on the side wall of the box body 1, together with the diagonal ribs 5, support the side wall with a low-density structure, reducing weight while resisting lateral compression, optimizing the stress structure, and effectively resisting lateral pressure during transportation and stacking, preventing the side wall from bulging or collapsing. At the same time, the dividing mesh-like ribs 11 divide the interior of the box body 1 into multiple independent cavities, realizing the classified storage of food, and at the same time, it and the first mesh-like ribs 4 on the side wall of the box body 1 have a higher mesh unit density, effectively dispersing the pressure generated by the weight of the food, providing stable support for the food inside the box, preventing the bottom from denting and deforming due to excessive local stress, and avoiding leakage of soup. The first grid-like rib 3 and the second grid-like rib 4 are connected to further enhance the overall structural stability of the box body 1. Then, the insulation layer 6 can effectively reduce heat loss and maintain the food temperature. The aluminum foil layer 7 is tightly attached to the insulation layer 6, which not only prevents soup leakage, but also plays a role in moisture prevention and oxidation prevention, ensuring the freshness of food. Then, when the box body 1 is closed with the lid 2, the outward folded edge 8, the vertical folded edge 9 and the semi-circular protrusion 10 on the aluminum foil layer 7 are precisely matched with the slot 12 on the outside of the lid 2 and the internal groove 13. With the size adaptation and snap-fit ​​connection, a tight and stable seal is achieved, ensuring that the lunch box is safe and reliable during transportation and use, and meeting the needs of practical applications.

Claims

1. An aluminum foil lunch box with mesh-like ribs, comprising a box body (1) and a box lid (2), characterized in that: The box body (1) is composed of a bottom and a side wall. The box body (1) is provided with a first grid-shaped rib (3) and a second grid-shaped rib (4). The first grid-shaped rib (3) is located on the inner side of the bottom of the box body (1), and the second grid-shaped rib (4) is located on the inner side of the side wall of the box body (1). The first grid-shaped rib (3) and the second grid-shaped rib (4) both include transverse ribs and longitudinal ribs. The transverse ribs and the longitudinal ribs are interlaced to form multiple grid units. The grid unit density of the first grid-shaped rib (3) is greater than the grid unit density of the second grid-shaped rib (4). Multiple oblique ribs (5) are provided on the inner side of the four corners of the second grid-shaped rib (4). Each oblique rib (5) is fixedly connected to the transverse ribs and longitudinal ribs of the second grid-shaped rib (4).

2. The aluminum foil lunch box with mesh-like ribs according to claim 1, characterized in that: The inner side of the box (1) is provided with a dividing grid-like rib (11), which divides the inner side of the box (1) into multiple independent cavities. The outer side of the dividing grid-like rib (11) is fixedly connected to the outer side of the second grid-like rib (4) and the upper side of the first grid-like rib (3), respectively. The grid unit density of the dividing grid-like rib (11) is the same as that of the second grid-like rib (4).

3. The aluminum foil lunch box with mesh-like ribs according to claim 2, characterized in that: Each of the cavity is provided with an insulation layer (6) on its inner side, and the outer side of the insulation layer (6) is bonded to the inner side of the first mesh rib (3) and the inner side of the second mesh rib (4).

4. The aluminum foil lunch box with mesh-like ribs according to claim 3, characterized in that: The box body (1) has an aluminum foil layer (7) inside. The shape of the aluminum foil layer (7) is adapted to the cavity. The outer side of the aluminum foil layer (7) is bonded to the inner side of the insulation layer (6).

5. The aluminum foil lunch box with mesh-like ribs according to claim 4, characterized in that: The outer side of the aluminum foil layer (7) is provided with an outward folded edge (8), and a vertical folded edge (9) is fixedly connected to the upper side of the outward folded edge (8). A semi-circular protrusion (10) is fixedly connected to the outer side of the vertical folded edge (9), and a slot (12) is opened on the outer side of the box cover (2).

6. The aluminum foil lunch box with mesh-like ribs according to claim 5, characterized in that: The aluminum foil layer (7), the outward folded edge (8), the vertical folded edge (9), and the semi-circular protrusion (10) are integrally formed.

7. The aluminum foil lunch box with mesh-like ribs according to claim 5, characterized in that: The dimensions of the slot (12) are adapted to the dimensions of the vertical fold (9), and the outer side of the vertical fold (9) is inserted into the inner side of the slot (12).

8. An aluminum foil lunch box with mesh-like ribs according to claim 7, characterized in that: The slot (12) has a groove (13) inside, and the groove (13) and the vertical fold (9) are connected in a snap-fit ​​manner. The inner wall shape of the groove (13) is adapted to the outer shape of the vertical fold (9).

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