Patent ID: 9718604
Date: 2017-08-01
CPC Classifications: B65D,G02F,Y10S

Claim:
1. A first packing box, comprising: a box body comprising an inward concave forming four blocking portions at four sides; and a plurality of supporting members arranged at four corners of the box body, each of the supporting members comprises a big head end and a small head end fixedly connecting to the blocking portions, the small head end is arranged above a top surface of the blocking portion, a bottom surface of the big head end comprises an inward concave, the small head end of the supporting member of the packing box is engagable with the big head end of the supporting member of a second packing box stacked above the first packing box, and the big head end of the supporting member of the packing box is engagable with the small head end of the supporting member of a third packing box stacked below the first packing box.