Paper and plastic combined packaging box

Abstract

The invention relates to a paper and plastic combined packaging box, which is flip-type packaging box, comprising a box cover cardboard, a box body cardboard portion and an integrated plastic frame formed by injection molding. The box body cardboard portion is formed as an enclosure by a plurality of cardboards, and has an upper edge. The integrated plastic frame formed by injection molding is configured to connect the box cover cardboard and the box body cardboard portion. The integrated plastic frame is comprised of a box body plastic member and a box cover plastic member which are connected through a plastic hinge. The box body plastic member is comprised of a main body of box body plastic member arranged at a gap between cardboards of the box body cardboard portion and an upper edge plastic member which is wrapped at the upper edge of the box body cardboard portion. The box cover plastic member is wrapped at the periphery of the box cover cardboard. The upper edge plastic member and the box cover plastic member are in a fastening connection to implement sealing of the packaging box. Compared with the prior art, the invention saves plastic, has high strength, high tightness and various shapes, and is low in cost.

Dependencies are inferred from the claim text.