Self-heating lunch box capable of being repeatedly used

Abstract

The invention relates to the technical field of thermal insulation lunch boxes and particularly relates to a self-heating lunch box capable of being repeatedly used. The self-heating lunch box comprises a shell and an inner container, wherein a layer of filter plate is mounted at the upper end of the inner container to divide the inner container into a filter region and a meal region, a protrudedstrip and a steam pipe are mounted at the outer part of the meal region, a chute matched with the protruded strip is mounted on the inner wall of the shell, a heating partition board is mounted at thebottom of the meal region, a plurality of steam holes are formed in the heating partition board, and a film pricking needle and a spring are arranged at the heating partition board; and a heating region is arranged below the heating partition board, a plurality of easily-opened lids are uniformly mounted in the heating region to divide the heating region into multiple heating layers, and self-heating bags are placed in the heating layers and respectively coated with a layer of catalyst water-soluble film. According to the self-heating lunch box capable of being repeatedly used, different useprocesses are not mutually influenced, the operation is simple, the thermal insulation time is prolonged, the heating efficiency is improved, and meanwhile, the self-heating lunch box is relatively sanitary, healthy and safe.

Description

technical field [0001] The invention relates to the technical field of thermal insulation lunch boxes, in particular to a multi-usable self-heating lunch box. Background technique [0002] With the increasing pace of modern life, people have higher and higher requirements for the efficiency of doing things, and eating is no exception. We all know that most foods taste better when heated. On the other hand, there are many people with stomach problems Good people run into cold weather and can not eat the food that is lower than body temperature, therefore do not have these cold meals and cold dishes to long-term consumption, can directly affect people's health. Especially for some special groups such as frontier posts, army camping and training, field exploration and investigation, civilian police performing tasks, long-distance flood fighting and rescue, traveling, and other outdoor personnel, in the absence of power supply, fire source, open flame, cooking utensils, etc. It...

AI Technical Summary

Problems solved by technology

[0005] At present, there are two types of self-heating lunch boxes on the market: disposable heating lunch boxes and replaceable self-heating packs. The former can only be heated once and is heavy in weight, while the latter can be replaced with self-heating packs and needs to be carried separately. The spare self-heating bag contains quicklime and another bag of water bag. If the self-heating bag is not properly stored during the carrying process, the quicklime powder is easy to scatter out and it is difficult to clean. Scalds, burns and other safety hazards, especially for children to play with by mistake, may cause harm to children after touching water

Among them, some self-heating lunch boxes that require an external water source cannot immediately find a clean water source when used in the field, and there are many impurities in it. When the water vapor evaporates and heats, it is easy to cause pollution to the food.

In addition, most of the heating agents now emit a large amount of heat at one time, which cannot achieve continuous heating for a long time. The food in the lower part is already scalding, while the food in the upper part is still cold, and the heating effect is not particularly ideal.

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