Lunch box container

A lunch box container comprising:

• a lower housing that is formed to have an inner containing space;
• an upper housing that is hinged to one edge of the lower housing and is rotatable;
• an inner case that is contained in the inner containing space of the lower housing and provided with partition walls to separate a plurality of inner spaces, wherein the inner case is formed of a silicon material;
• and
• a locking wing that is formed on the other edge of the lower housing or the upper housing,
• wherein the upper housing includes a trench portion formed on a lower surface to correspond to an upper end portion of the inner case,
• wherein the partition walls of the inner case include:
• a first partition wall located in a middle region;
• and a second partition wall extending to be orthogonal by using the first partition wall as a center,
• wherein the trench portion of the upper housing includes:
• a first trench portion recessed such that the first partition wall is inserted into the first trench portion;
• a second trench portion extending to be orthogonal by using the first trench portion as a center;
• and a third trench portion extending from the second trench portion so as to fix an edge portion of the inner case, and
• wherein an upper surface the upper housing includes a plurality of coupling grooves arranged in parallel at regular intervals.