Packaging box

A packaging box, comprising:

• a housing comprising a cover body and a seat body, wherein the seat body further comprises a first recessed portion and a second recessed portion, and the cover body is configured to adjust to cover or expose the first recessed portion by reversibly connecting to the seat body;
• a lifting mechanism comprising a load-bearing part and a transmission part;
• and
• a reflector disposed in the seat body and forming a hollow space with the second recessed portion;
• wherein the load-bearing part is disposed in the first recessed portion, the load-bearing part is reversibly connected to a sidewall of the first recessed portion, and the load-bearing part is configured to carry items;
• wherein the transmission part is connected between the cover body and the load-bearing part, so that the load-bearing part is configured to extend or retract the first recessed portion by overturning the cover body;
• and
• wherein the seat body comprises a bottom wall, a first sidewall, and a second sidewall, the first sidewall and the second sidewall are placed around the bottom wall, the first sidewall and the second sidewall are opposite to each other, the reflector is configured to separate the first recessed portion and the second recessed portion, the first recessed portion comprises a first opening facing away from the bottom wall, and the second sidewall comprises an observation portion next to the second recessed portion, so that the hollow space is configured to be seen through the observation portion by a user.