A KIND OF SELF-HEATING LUNCH-BOX

摘要

A kind of self-heating lunch-box includes an outer box, an inner box, a water bag and a heating bag of calcium oxide. The inner box that is in the outer box is a two-layer construction. There is a space between two layers. The heating equipment is mounted under the space. Inside the heating equipment there are a water bag and a heating bag of calcium oxide. Each of the two opening devices whose peristome extends out from a side of the heating equipment is set on the water bag and heating bag.