Heat preservation catering box

Abstract

The utility model relates to the technical field of food heat preservation, and discloses a heat preservation catering box which comprises an outer box and a box cover located at the upper end of the outer box, an inner box is arranged in the outer box and comprises an inner box body, a plurality of air bag frames are arranged in the inner box body in a sliding mode, air bags are installed on the inner sides of the air bag frames, and the air bags are arranged in the inner box body. An inflation nozzle and a deflation nozzle are installed at the upper end of the outer side of the air bag frame, and a plurality of sets of limiting blocks are fixedly connected to the position, close to the outer side of the air bag frame, of the inner side wall of the inner box body. According to the utility model, the inner box is placed in the outer box, and food is placed in the inner box, so that the heat of the food can be preserved; the interior of the inner box body can be divided into a plurality of small grids through the air bag frame and the air bag in the inner box, so that different foods can be placed, and the foods are prevented from being crossed and tainted by other odors; the food can be pressed after the air bag is inflated and expanded, so that the food is prevented from shifting or overturning in the transportation process, and the food transportation safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of food insulation technology, specifically an insulated catering box. Background Technology

[0002] With the rise of food delivery and packaging, food containers have become widely used. These containers ensure food stays at the appropriate temperature during transport, preserving its taste and flavor. Through their insulation properties, food containers effectively maintain food temperature, preventing rapid cooling during transport, which is crucial for the taste and flavor of many dishes.

[0003] A Chinese patent discloses a railway vertical food warming box (authorization announcement number CN210455884U). This patented technology uses an insulation board on the inner wall of the box to keep hot food warm and ice cubes placed in the inner cavity to refrigerate food. It is convenient for keeping food warm or cold on high-speed trains and for high-speed train staff to handle and transport it. However, it cannot effectively prevent food from shifting or tipping over during transportation and cannot achieve efficient heat preservation. Summary of the Invention

[0004] The purpose of this invention is to provide an insulated food container to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An insulated food container includes an outer box and a lid located at the top of the outer box. An inner box is provided inside the outer box. The inner box includes an inner box body. Several airbag frames are slidably arranged inside the inner box body. Airbags are installed on the inner side of the airbag frames, and an inflation nozzle and an deflation nozzle are installed on the upper outer side of the airbag frames. Several sets of limiting blocks are fixedly connected to the inner side wall of the inner box body near the outer side of the airbag frames.

[0007] As a further embodiment of this utility model: the outer box includes an outer box body and a breathable membrane located inside the outer box body. A cavity is provided between the outer box body and the breathable membrane. The inner side of the cavity is filled with a heat insulation board. A number of reinforcing strips are provided on the inner sidewall of the breathable membrane.

[0008] As a further improvement of this utility model, a sealing ring is provided at the upper opening of the outer casing.

[0009] As a further improvement of this utility model: the inner box body is placed inside the breathable membrane, and the outer structure of the inner box body matches the inner structure of the breathable membrane.

[0010] As a further embodiment of this utility model: the box cover includes a box cover body, an electric heating wire is embedded inside the box cover body, both ends of the electric heating wire are connected to a controller, the upper end of the controller is electrically connected to a switch, and the lower end of the controller is electrically connected to a storage battery.

[0011] As a further improvement of this utility model: magnetic sheets are provided at both ends of the upper opening of the outer box body near the sealing ring, and iron sheets matching the magnetic sheets are installed on both sides of the lower end of the box cover body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention places the inner box inside the outer box and places all the food inside the inner box. The heat insulation board in the outer box can keep the food warm and prevent the food from losing heat too quickly. When the food needs to be refrigerated and preserved, the heat insulation board can be removed and dry ice or ice packs can be placed in the cavity between the outer box body and the breathable membrane. The dry ice or ice packs absorb the heat transferred from the inner box through the breathable membrane to achieve refrigeration and preservation.

[0014] The inner box can be divided into several small compartments by the airbag frame and airbags, so that different foods can be placed and cross-contamination of flavors can be prevented. When the airbags are inflated, they can hold the food in place and prevent it from shifting or tipping over during transportation, thus improving the safety of food transportation. Attached Figure Description

[0015] Figure 1 This is a structural diagram of an insulated food container;

[0016] Figure 2 This is a schematic diagram of the structure of the outer box of an insulated food delivery box;

[0017] Figure 3 for Figure 2 A magnified structural diagram of part A in the middle;

[0018] Figure 4 This is a schematic diagram of the structure of the inner box of an insulated food delivery box;

[0019] Figure 5 for Figure 4 A magnified structural diagram of part B in the middle section;

[0020] Figure 6 This is a partial cross-sectional view of the lid of an insulated food container.

[0021] In the diagram: 1. Outer casing; 11. Outer casing body; 12. Magnetic sheet; 13. Sealing ring; 14. Heat insulation board; 15. Breathable membrane; 16. Reinforcing strip; 2. Inner casing; 21. Inner casing body; 22. Airbag; 23. Airbag frame; 24. Limiting block; 25. Inflation nozzle; 26. Deflator; 3. Cover; 31. Cover body; 32. Heating wire; 33. Controller; 34. Switch; 35. Battery. Detailed Implementation

[0022] Please see Figures 1-6 In this embodiment of the utility model, an insulated catering box includes an outer box 1 and a box cover 3 located at the upper end of the outer box 1. An inner box 2 is provided inside the outer box 1, and food is placed in the inner box 2.

[0023] exist Figure 2 and Figure 3 In the outer box 1, there are an outer box body 11 and a breathable membrane 15 located inside the outer box body 11. A cavity is provided between the outer box body 11 and the breathable membrane 15. The inner side of the cavity is filled with a heat insulation board 14. The heat insulation board 14 can keep the food warm and prevent the food from losing heat too quickly. When the food needs to be refrigerated, the heat insulation board 14 can be removed and dry ice or ice packs can be placed in the cavity between the outer box body 11 and the breathable membrane 15. The dry ice or ice packs absorb the heat transferred from the inner box 2 through the breathable membrane 15 to achieve refrigeration. The inner side wall of the breathable membrane 15 is provided with several reinforcing strips 16. The reinforcing strips 16 can improve the strength of the breathable membrane 15 and reduce the deformation of the breathable membrane 15. A sealing ring 13 is provided at the upper opening of the outer box body 11. The sealing ring 13 can increase the sealing effect between the outer box 1 and the lid 3.

[0024] exist Figure 4 and Figure 5The inner box 2 includes an inner box body 21. Several airbag frames 23 are slidably arranged inside the inner box body 21. Airbags 22 are installed on the inner side of each airbag frame 23. An inflation nozzle 25 and a deflation nozzle 26 are installed on the upper outer side of each airbag frame 23. Several sets of limiting blocks 24 are fixedly connected to the inner wall of the inner box body 21 near the outer side of the airbag frames 23. The limiting blocks 24 can fix the airbag frames 23 and airbags 22 together inside the inner box body 21, and the airbag frames 23 and airbags 22 can be pulled out together along the limiting blocks 24. The airbag frames 23 and airbags 22 can be used to... The interior of the inner box body 21 is divided into several small compartments, which can hold different foods and prevent cross-contamination of flavors. Air is injected into the air bladder 22 through the inflation nozzle 25. The air causes the air bladder 22 to inflate, which presses the food in place and prevents it from shifting or tipping over during transportation. After the air is released from the air bladder 22 through the deflation nozzle 26, the food can be easily removed. The inner box body 21 is placed inside the breathable membrane 15, and the outer structure of the inner box body 21 matches the inner structure of the breathable membrane 15, thereby improving the heat preservation effect of the food.

[0025] exist Figure 6 In the case, the lid 3 includes a lid body 31, and an electric heating wire 32 is embedded inside the lid body 31. Both ends of the electric heating wire 32 are connected to a controller 33. The upper end of the controller 33 is electrically connected to a switch 34, and the lower end of the controller 33 is electrically connected to a battery 35. The switch 34 can turn the electric heating wire 32 on or off; the battery 35 can provide power to the electric heating wire 32; the electric heating wire 32 can generate heat, which is then transferred to the inner box 2, thereby preventing the food in the inner box 2 from losing heat too quickly and keeping the food in the inner box 2 at a constant temperature.

[0026] exist Figure 2 and Figure 6 In the case, magnetic sheets 12 are provided at both ends of the upper opening of the outer box body 11 near the sealing ring 13, and iron sheets matching the magnetic sheets 12 are installed on both sides of the lower end of the box cover body 31. By attracting the magnetic sheets 12 to the iron sheets, the inner box 2 can be securely closed to the outer box 1, and it is convenient to open and close.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A thermal food container, comprising an outer box (1) and a lid (3) located at the upper end of the outer box (1), wherein an inner box (2) is disposed inside the outer box (1), characterized in that, The inner box (2) includes an inner box body (21). Several airbag frames (23) are slidably arranged inside the inner box body (21). An airbag (22) is installed on the inner side of the airbag frame (23), and an inflation nozzle (25) and an deflation nozzle (26) are installed on the upper end of the outer side of the airbag frame (23). Several sets of limiting blocks (24) are fixedly connected to the inner side wall of the inner box body (21) near the outer side of the airbag frame (23).

2. The insulated food container according to claim 1, characterized in that, The outer casing (1) includes an outer casing body (11) and a breathable membrane (15) located inside the outer casing body (11). A cavity is provided between the outer casing body (11) and the breathable membrane (15). The inner side of the cavity is filled with a heat insulation board (14). A number of reinforcing strips (16) are provided on the inner side wall of the breathable membrane (15).

3. The insulated food container according to claim 2, characterized in that, A sealing ring (13) is provided at the upper opening of the outer casing body (11).

4. The insulated food container according to claim 2, characterized in that, The inner box body (21) is placed inside the breathable membrane (15), and the outer structure of the inner box body (21) matches the inner structure of the breathable membrane (15).

5. The insulated food container according to claim 2, characterized in that, The cover (3) includes a cover body (31), and an electric heating wire (32) is embedded inside the cover body (31). Both ends of the electric heating wire (32) are connected to a controller (33). The upper end of the controller (33) is electrically connected to a switch (34), and the lower end of the controller (33) is electrically connected to a battery (35).

6. The insulated food container according to claim 5, characterized in that, Magnetic plates (12) are provided at both ends of the upper opening of the outer box body (11) near the sealing ring (13), and iron plates matching the magnetic plates (12) are installed on both sides of the lower end of the box cover body (31).

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