Anti-scald hollow self-heated lunch box

Abstract

The invention relates to an anti-scald hollow self-heated lunch box which is composed of a box cover, an outer box, a liner and an inner box, wherein the box cover, the outer box, the liner and the inner box are of square structures; ladder-shaped stress supporting surfaces extending outwards are arranged around the upper parts of the outer box, the liner and the inner box; the widths of all sidesof the outermost sides of the ladder-shaped stress supporting surfaces on all sides at the upper part of the liner are greater than the widths of all sides of the lower ends of the ladder-shaped stress supporting surfaces on all sides of the upper part of the outer box, and the widths of all sides of the outermost sides of the ladder-shaped stress supporting surfaces on all sides on the upper part of the inner box are greater than the widths of all sides of the lower ends of the ladder-shaped stress supporting surfaces on all sides of the upper part of the liner, the liner is arranged in theouter box, the inner box is arranged on the liner, a self-heated bag and water are arranged in the liner, a to-be-heated food is arranged in the inner box, and the box cover covers the upper end of the outer box. The anti-scald hollow self-heated lunch box provided by the invention can prevent heat from scalding an object and a user through the outer box effectively, and the user moves and supports the bottom of the outer box to eat at any time conveniently. Under equal strength, the box body is lighter, so that more materials can be saved; the food in the inner box can be heated more quickly.

Description

technical field [0001] The invention relates to the field of tableware, in particular to an anti-scalding hollow self-heating lunch box. Background technique [0002] The emergence of self-heating food boxes greatly facilitates people’s need for heating food outside the home. The existing way of heating food in self-heating food boxes is to put food in the inner box, and then put heating materials in the lower part of the outer box. The common ingredient is calcium carbonate. Add water to the inside of the outer box and close the lid. The water and the heating material will produce a chemical reaction to release a lot of heat (the actual temperature can reach 100°C) to heat the food in the inner box. However, due to the defects in the design of the existing self-heating box, there are the following disadvantages: when the heating material in the outer box heats the food, its bottom is in direct contact with the placement platform, which may easily cause the placement platfor...

AI Technical Summary

Problems solved by technology

However, due to the defects in the design of the existing self-heating box, there are the following disadvantages: when the heating material in the outer box heats the food, its bottom is in direct contact with the placement platform, which may easily cause the placement platform to be damaged due to the internal stress generated by absorbing a large amount of heat in a short period of time For example, the glass material platform will change from sudden cold to sudden heat due to the heat absorbed, and the glass material platform will be broken. At the same time, the temperature of the outer box is too high, it is not convenient for the user to move it by hand, it is easy to burn, and it is not convenient to hold the outer box by hand. Eat directly from the bottom; in addition, due to the large amount of heat dissipation of the outer box, the heat loss is relatively large, which affects the heating effect of the food

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