Aluminum foil meal box with enhanced annular edge

Abstract

The invention relates to an aluminum foil meal box with an enhanced annular edge, and belongs to the technical field of aluminum foil meal boxes, the aluminum foil meal box with the enhanced annular edge comprises an aluminum foil meal box shell, an aluminum foil meal box inner layer is arranged in the aluminum foil meal box shell, and an annular groove is formed in the inner wall of the top of the aluminum foil meal box shell; an annular groove is formed in the aluminum foil meal box outer shell, a conical plate and a heat conduction rib are embedded into the shell, the meal box inner layer is attached to the outer shell through stamping, meanwhile, the inner layer is attached to the conical plate, the annular reinforcing rib is pressed into the annular groove, and the heat conduction rib is fixed to the outer wall of the aluminum foil meal box outer shell. The mounting plate is held and lifted after the lunch box is used on the furnace, the connecting strength and heat conduction efficiency of the shell layer are improved, the anti-scalding effect is achieved, the conical curved surface increases the contact area with food and reduces the heat resistance of an air interlayer, meanwhile, the high-strength characteristic of the enhanced annular edge is matched, the heat conduction performance and the structural stability are both considered, and the use safety and applicability of the lunch box are improved.

Description

Technical Field

[0001] This invention belongs to the field of aluminum foil lunch box technology, specifically relating to an aluminum foil lunch box with an enhanced annular edge. Background Technology

[0002] Aluminum foil lunch boxes are a widely used type of tableware. The thickness of aluminum foil lunch boxes is generally between 0.03mm and 0.20mm. They can be divided into wrinkled and wrinkle-free types, as well as disposable and reusable types. In China, they are often called tin foil lunch boxes. In fact, they are made from 3-series or 8-series aluminum ingots, which are cold-rolled or hot-rolled into aluminum foil master rolls with uniform thickness, smooth surface, no pinholes, no dust particles, and no odor. They are then produced by a one-time fully automatic cold stamping process using special equipment and molds.

[0003] In existing technologies, the bottom of some aluminum foil lunch boxes is a flat surface, resulting in low thermal conductivity. The inclined angle of the conical plate sidewall shortens the heat transfer path from the outside of the box to the food inside. At the same time, most aluminum foil lunch boxes have internal partitions formed by die stamping, which makes replacement inconvenient. Therefore, in order to increase the contact area with food, reduce the thermal resistance of the air gap, and improve the practicality of aluminum foil lunch boxes, there is a need for an aluminum foil lunch box with an enhanced annular edge. Summary of the Invention

[0004] The purpose of this invention is to provide an aluminum foil lunch box with a simple structure and reasonable design, featuring an enhanced annular edge, in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] An aluminum foil lunch box with reinforced annular edges includes an aluminum foil lunch box shell, an aluminum foil lunch box inner layer inside the aluminum foil lunch box shell, an annular groove on the top inner wall of the aluminum foil lunch box shell, mounting plates symmetrically fixed to the outer wall of the aluminum foil lunch box shell, a reinforcing component on the aluminum foil lunch box inner layer, the reinforcing component including an annular reinforcing rib fixedly connected to the lower side of the outer wall of the aluminum foil lunch box inner layer and abutting against the inner wall of the annular groove, and a partitioning component on the aluminum foil lunch box inner layer.

[0007] As a further optimization of the present invention, the inner wall of the aluminum foil lunch box shell is fixedly connected with a plurality of heat-conducting ribs, and the outer walls of the plurality of heat-conducting ribs are jointly fixedly connected with a conical plate that fits against the bottom of the inner layer of the aluminum foil lunch box.

[0008] As a further optimization of the present invention, the partitioning component includes two partition frames abutting against the inner wall of the inner layer of the aluminum foil lunch box. The outer walls of the two partition frames are symmetrically connected to a mounting bracket. The outer wall of the mounting plate has an insertion hole. The bottom of the outer wall of the mounting bracket is fixedly connected to a rod inserted into the inner wall of the insertion hole.

[0009] As a further optimization of the present invention, a round rod is fixedly connected to the outer wall of the mounting frame, and a limiting groove is provided on the inner wall of the mounting frame for insertion into the outer wall of the inner layer of the aluminum foil lunch box.

[0010] As a further optimization of the present invention, the outer wall of the mounting plate is provided with a magnet, and the bottom of the outer wall of the mounting frame is fixedly connected with a magnetic piece that is magnetically attracted to the outer wall of the magnet.

[0011] As a further optimization of the present invention, the outer wall of the mounting frame is provided with two dovetail grooves, and the outer wall of the partition frame is symmetrically fixedly connected with dovetail blocks inserted into the inner wall of the dovetail grooves.

[0012] As a further optimization of the present invention, the inner wall of the inner layer of the aluminum foil lunch box is provided with a four-zone frame, and the outer wall of the four-zone frame is symmetrically and fixedly connected with a dovetail block inserted into the inner wall of the dovetail groove.

[0013] As a further optimization of the present invention, the bottom of the inner layer of the aluminum foil lunch box is concave and cooperates with the outer wall of the conical plate. The bottom of the inner wall of the aluminum foil lunch box, the partition frame and the four-zone frame are all provided with anti-slip protrusions.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. This invention utilizes an annular groove within the outer shell of an aluminum foil lunchbox to embed a conical plate and heat-conducting ribs. Stamping ensures the inner layer of the lunchbox adheres to the outer shell, while simultaneously adhering the inner layer to the conical plate. The annular reinforcing ribs are pressed into the annular groove. When used on a stove, the mounting plate can be held and lifted, improving the shell's connection strength and heat conduction efficiency, while also providing anti-scalding effects. The conical curved surface increases the contact area with food, reducing the thermal resistance of the air gap. Combined with the high-strength characteristics of the reinforced annular edge, the conical structure does not reduce the lunchbox's resistance to deformation, balancing heat conduction performance and structural stability, thus enhancing the safety and applicability of the lunchbox.

[0016] 2. This invention uses a dovetail block that slides into the dovetail groove, a round rod that engages the mounting bracket's limiting groove with the inner outer ring, an insert rod that inserts into the insertion hole, and a magnetic piece that magnetically attaches to the magnet. When changing the four-zone frame, simply remove the zone frame and slide the four-zone frame's dovetail block into the groove. This adapts to the serving needs of different portions and types of food, preventing cross-contamination of flavors and compression, while quickly switching to suit different serving needs, thus improving the practicality of the aluminum foil lunch box. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the partition component without installation according to the present invention;

[0018] Figure 2 This is the present invention. Figure 1 Exploded view;

[0019] Figure 3 This is a schematic diagram of the partitioned structure of the present invention;

[0020] Figure 4 This is the present invention. Figure 3 Exploded view;

[0021] Figure 5 This is a partial schematic diagram of the mounting bracket of the present invention;

[0022] Figure 6 This is a schematic diagram of the four-zone frame structure of the present invention;

[0023] Figure 7 This is the present invention. Figure 4 Enlarged view of point A in the middle.

[0024] In the diagram: 1. Outer shell of aluminum foil lunch box; 2. Inner layer of aluminum foil lunch box; 3. Annular groove; 4. Reinforcing component; 401. Annular reinforcing rib; 402. Conical plate; 403. Heat-conducting rib; 5. Mounting plate; 6. Partitioning component; 601. Partitioning frame; 602. Mounting bracket; 603. Insert rod; 604. Magnetic plate; 605. Round rod; 606. Limiting groove; 607. Dovetail groove; 608. Dovetail block; 7. Insertion hole; 8. Magnet; 9. Four-zone frame. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0026] Example 1: As Figure 1 , Figure 2 , Figure 4As shown, an aluminum foil lunch box with reinforced annular edges includes an aluminum foil lunch box shell 1, which serves as the external support structure to enhance the overall load-bearing strength of the lunch box. An aluminum foil lunch box inner layer 2 is provided inside the aluminum foil lunch box shell 1 for directly holding food. An annular groove 3 is formed on the top inner wall of the aluminum foil lunch box shell 1 to provide a fitting position to ensure precise connection. Mounting plates 5 are symmetrically fixed to the outer wall of the aluminum foil lunch box shell 1, allowing users to easily lift the lunch box for heat-resistant operation. A reinforcing component 4 is provided on the inner layer 2 to enhance the connection strength between the inner and outer layers and improve heat conduction efficiency. The reinforcing component 4 includes an annular reinforcing rib 401. 01 is the core structure for enhancing the connection between the inner and outer layers. The outer wall of the annular reinforcing rib 401 is fixedly connected to the lower side of the outer wall of the inner layer 2 of the aluminum foil lunch box, so that the annular reinforcing rib 401 and the inner layer 2 of the aluminum foil lunch box form a stable whole. The outer wall of the annular reinforcing rib 401 abuts against the inner wall of the annular groove 3, which improves the stability of the connection between the inner and outer layers. Multiple heat-conducting ribs 403 are fixedly connected to the inner wall of the outer shell 1 of the aluminum foil lunch box. The heat-conducting ribs 403 increase the heat-conducting contact area and accelerate heat transfer. The outer walls of the multiple heat-conducting ribs 403 are fixedly connected to a conical plate 402. The conical plate 402 realizes concentrated heat conduction and improves heat conduction uniformity. The outer wall of the conical plate 402 is attached to the bottom of the inner layer 2 of the aluminum foil lunch box, ensuring that heat can be efficiently transferred to the food placed in the inner layer 2 of the aluminum foil lunch box.

[0027] like Figure 1 , Figure 3 , Figure 5 , Figure 7 As shown, a partition component 6 is provided on the inner layer 2 of the aluminum foil lunch box. The partition component 6 is used to realize the function of partitioning food in the lunch box. The partition component 6 includes two partition frames 601, which can divide the interior of the lunch box into two independent areas. The outer walls of the two partition frames 601 abut against the inner wall of the inner layer 2 of the aluminum foil lunch box, ensuring the stability of the partition frames 601 after installation and fitting the inner layer 2 of the aluminum foil lunch box to prevent food leakage. The outer walls of the two partition frames 601 are symmetrically connected to the mounting brackets 602. The mounting brackets 602 provide installation support for the partition frames 601 and realize the connection with the main body of the lunch box. The outer wall of the mounting plate 5 has a hole 7, which is used to provide a hole for insertion and positioning. The bottom of the outer wall of the mounting bracket 602 is fixedly connected to the insertion rod 603. The insertion rod 603 cooperates with the insertion hole 7 to realize the initial positioning of the mounting bracket 602. The outer wall of the insertion rod 603 is inserted into the inner wall of the insertion hole 7, so that the mounting bracket 602 and the mounting plate 5 form an initial fixed relationship.

[0028] like Figure 1 , Figure 3 , Figure 5 , Figure 7As shown, a round rod 605 is fixedly connected to the outer wall of the mounting bracket 602. The round rod 605 facilitates the user's grip for installing and removing the mounting bracket 602. A limiting groove 606 is formed on the inner wall of the mounting bracket 602. The limiting groove 606 engages with the outer ring on the inner layer 2 of the aluminum foil lunch box to position the mounting bracket 602. The inner side of the limiting groove 606 is inserted into the outer wall of the inner layer 2 of the aluminum foil lunch box, improving the stability of the mounting bracket 602 after installation. A magnet 8 is provided on the outer wall of the mounting plate 5 to provide a magnetic attraction base. A magnetic piece 604 is fixedly connected to the bottom of the outer wall of the mounting bracket 602. The magnetic piece 604 enhances the connection strength between the mounting bracket 602 and the mounting plate 5 through magnetic attraction. The outer wall of the magnetic piece 604 is magnetically attracted to the outer wall of the magnet 8, ensuring the stability of the mounting bracket. The mounting bracket 602 will not easily fall off during use. The outer wall of the mounting bracket 602 has two dovetail grooves 607, which are used to provide sliding guidance. The outer wall of the partition frame 601 is symmetrically fixed with dovetail blocks 608. The dovetail blocks 608 cooperate with the dovetail grooves 607 to realize the quick installation and removal of the partition frame 601. The outer wall of the dovetail blocks 608 is inserted into the inner wall of the dovetail grooves 607 to ensure the positional accuracy of the partition frame 601 after installation. The bottom of the inner layer 2 of the aluminum foil lunch box is concave and cooperates with the outer wall of the conical plate 402 to make the inner layer 2 of the aluminum foil lunch box and the conical plate 402 fit tightly to improve the heat conduction efficiency. The bottom of the inner wall of the aluminum foil lunch box and the partition frame 601 are provided with anti-slip protrusions to prevent food from sliding during heating or carrying.

[0029] Example 2: Figure 1 , Figure 3 , Figure 5 , Figure 7As shown, two partition frames 601 have symmetrical mounting brackets 602 inserted into their outer walls. The mounting brackets 602 provide mounting support for the partition frames 601 and connect them to the main body of the lunchbox. The outer wall of the mounting plate 5 has insertion holes 7 for positioning. A rod 603 is fixedly connected to the bottom of the outer wall of the mounting bracket 602. The rod 603 engages with the insertion holes 7 to achieve initial positioning of the mounting bracket 602. The outer wall of the rod 603 is inserted into the inner wall of the insertion holes 7, forming a preliminary fixed relationship between the mounting bracket 602 and the mounting plate 5. A round rod 605 is fixedly connected to the outer wall of the mounting bracket 602. The round rod 605 facilitates the user's gripping and operation of the mounting bracket 602 for installation and removal. The inner wall of the mounting bracket 602 has limited openings. The positioning groove 606 engages with the outer ring on the inner layer 2 of the aluminum foil lunch box to position the mounting bracket 602. The inner side of the positioning groove 606 is inserted into the outer wall of the inner layer 2 of the aluminum foil lunch box, improving the stability of the mounting bracket 602 after installation. The outer wall of the mounting plate 5 is provided with a magnet 8, which provides a magnetic attraction base. A magnetic piece 604 is fixedly connected to the bottom of the outer wall of the mounting bracket 602. The magnetic piece 604 enhances the connection strength between the mounting bracket 602 and the mounting plate 5 through magnetic attraction. The outer wall of the magnetic piece 604 is magnetically attracted to the outer wall of the magnet 8, ensuring that the mounting bracket 602 will not easily fall off during use. Two dovetail grooves 607 are opened on the outer wall of the mounting bracket 602, which are used to provide sliding guidance.

[0030] like Figure 5 , Figure 6 As shown, the inner wall of the inner layer 2 of the aluminum foil lunch box is provided with a four-zone frame 9. The four-zone frame 9 can divide the interior of the lunch box into four independent areas to meet the needs of holding multiple types of food. The outer wall of the four-zone frame 9 is symmetrically fixed with dovetail blocks 608 that are inserted into the inner wall of the dovetail groove 607. The dovetail blocks 608 achieve quick installation of the four-zone frame 9 by cooperating with the dovetail groove 607 on the mounting bracket 602. The bottom of the inner wall of the four-zone frame 9 is provided with anti-slip protrusions to prevent food from sliding during heating or carrying.

[0031] It should be noted that, in the case of this aluminum foil lunch box with reinforced annular edge, an annular groove 3 is first set inside the outer shell 1 of the aluminum foil lunch box. Then, a conical plate 402 and a heat-conducting rib 403 are embedded into the outer shell 1 of the aluminum foil lunch box, so that the inner layer 2 of the aluminum foil lunch box is stamped and bonded to the outer shell 1 of the aluminum foil lunch box. At the same time, the inner layer 2 of the aluminum foil lunch box and the conical plate 402 are bonded together. Then, the annular reinforcing rib 401 is pressed into the annular groove 3. After use on the stove, the mounting plate 5 can be held and lifted up, which enhances the connection strength and heat conduction efficiency between the outer shell 1 of the aluminum foil lunch box and the inner layer 2 of the aluminum foil lunch box, as well as preventing scalding.

[0032] When installing the partition frame 601 inside the inner layer 2 of the aluminum foil lunch box, first slide the dovetail block 608 on the partition frame 601 into the dovetail groove 607, then hold the round rod 605 so that the limiting groove 606 on the mounting bracket 602 engages with the outer ring of the inner layer 2 of the aluminum foil lunch box. Then the mounting bracket 602 is attached to the surface of the mounting plate 5, and at the same time the insertion rod 603 is inserted along the insertion hole 7, and the magnetic piece 604 is magnetically attracted to the magnet 8, thereby installing the partition frame 601 on the inner layer 2 of the aluminum foil lunch box.

[0033] When installing the four-zone frame 9 on the mounting bracket 602, first remove the partition frame 601, then slide the dovetail block 608 up along the dovetail groove 607, and slide the dovetail block 608 on the four-zone frame 9 back into the dovetail groove 607, so that the installation of the four-zone frame 9 is completed.

[0034] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. An aluminum foil lunch box with reinforced annular edges, comprising an aluminum foil lunch box shell (1), characterized in that: The aluminum foil food box shell (1) has an inner aluminum foil food box layer (2) inside. The top inner wall of the aluminum foil food box shell (1) has an annular groove (3). The outer wall of the aluminum foil food box shell (1) is symmetrically fixed with mounting plates (5). The inner aluminum foil food box layer (2) is provided with a reinforcing component (4). The reinforcing component (4) includes an annular reinforcing rib (401) fixedly connected to the lower side of the outer wall of the inner aluminum foil food box layer (2) and abutting against the inner wall of the annular groove (3). The inner aluminum foil food box layer (2) is provided with a partitioning component (6).

2. The aluminum foil lunch box with reinforced annular edge according to claim 1, characterized in that: The inner wall of the aluminum foil lunch box shell (1) is fixedly connected with a plurality of heat-conducting ribs (403), and the outer walls of the plurality of heat-conducting ribs (403) are fixedly connected with a conical plate (402) that fits against the bottom of the inner layer (2) of the aluminum foil lunch box.

3. The aluminum foil lunch box with reinforced annular edge according to claim 1, characterized in that: The partition component (6) includes two partition frames (601) that abut against the inner wall of the inner layer (2) of the aluminum foil lunch box. The outer walls of the two partition frames (601) are symmetrically connected to a mounting bracket (602). The outer wall of the mounting plate (5) is provided with a socket (7). The bottom of the outer wall of the mounting bracket (602) is fixedly connected to a rod (603) that is inserted into the inner wall of the socket (7).

4. The aluminum foil lunch box with an enhanced annular edge according to claim 3, characterized in that: The outer wall of the mounting bracket (602) is fixedly connected with a round rod (605), and the inner wall of the mounting bracket (602) is provided with a limiting groove (606) that is inserted into the outer wall of the inner layer (2) of the aluminum foil lunch box.

5. An aluminum foil lunchbox with an enhanced annular edge according to claim 3, characterized in that: The outer wall of the mounting plate (5) is provided with a magnet (8), and the bottom of the outer wall of the mounting bracket (602) is fixedly connected with a magnetic piece (604) that is magnetically attracted to the outer wall of the magnet (8).

6. The aluminum foil lunch box with an enhanced annular edge according to claim 3, characterized in that: The outer wall of the mounting bracket (602) has two dovetail grooves (607), and the outer wall of the partition frame (601) is symmetrically fixedly connected with dovetail blocks (608) inserted into the inner wall of the dovetail grooves (607).

7. An aluminum foil lunch box with an enhanced annular edge according to claim 6, characterized in that: The inner wall of the inner layer (2) of the aluminum foil lunch box is provided with a four-zone frame (9), and the outer wall of the four-zone frame (9) is symmetrically fixedly connected with a dovetail block (608) inserted into the inner wall of the dovetail groove (607).

8. An aluminum foil lunch box with an enhanced annular edge according to claim 7, characterized in that: The bottom of the inner layer (2) of the aluminum foil lunch box is concave and matches the outer wall of the conical plate (402). The bottom of the inner wall of the inner layer (2), partition frame (601) and four-zone frame (9) of the aluminum foil lunch box are all provided with anti-slip protrusions.

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