Packaging box for reduce volume and safe transportation for storage ceramic

A packaging box, comprising:

• an outer box body, a first box body, a second box body, a packaging component, a supporting bottom plate, a supporting column, a first outer cover plate, a second outer cover plate, a first cover plate, a second cover plate, a third cover plate, a fourth cover plate, a third bottom plate, a fourth bottom plate, a circular corrugated board, and a top ring body;
• wherein the first box body and the second box body are respectively arranged inside the outer box body;
• the outer box body, the first box body, and the second box body are all formed by folding a double-layer corrugated board;
• the first outer cover plate and the second outer cover plate are symmetrically arranged on the outer box body, the first cover plate and the second cover plate are symmetrically arranged on the first box body, and the third cover plate and the fourth cover plate are symmetrically arranged on the second box body;
• the second box body and the first box body are closely attached to each other, and the second box body and the first box body are both attached to an inner wall of the outer box body;
• the third and fourth bottom plates are arranged inside the second box body, and the circular corrugated board is placed on the third and fourth bottom plates;
• and
• the circular corrugated board is attached to an inner wall of the second box body.