Heat preservation express packaging box

Abstract

The invention relates to a heat preservation express packaging box. The packaging box comprises an outer box and an outer cover which are matched, and further comprises a heat insulation layer clamp placed into an internal cavity formed by the outer box and the outer cover, a heat insulation layer matched with the internal cavity in shape and a coolant; the heat insulation layer comprises a heat insulation layer base plate arranged at the bottom of the outer box, heat insulation layer side plates arranged at the periphery of the heat insulation layer and a heat insulation layer top cover arranged at the tops of the heat insulation layer side plates; the heat insulation layer clamp comprises an installing part connected with the outer box and a limiting part fixedly connected with the installing part, the heat insulation layer side plates are inserted into the installing space formed by the side wall of the outer box and the limiting part; coolant placement bags for containing the coolant are arranged on the heat insulation layer top cover, the heat insulation layer side plates and the heat insulation layer base plate. Compared with the prior art, the packaging box has the advantages that small internal temperature changes are generated, the heat preservation performance is good, the cost is low and resources are recyclable.

Description

technical field [0001] The invention relates to the technical field of heat preservation, in particular to a heat preservation express packaging box. Background technique [0002] In recent years, with the rise of e-commerce, the online shopping commodity express service industry has developed rapidly. Statistics from the State Post Bureau show that the total sales volume of express delivery in the past year has exceeded 50 billion yuan. From a global perspective, the above-mentioned business volume has exceeded the sum of developed countries (economies) such as the United States, Japan, and the European Union. The scale has continued for five consecutive years. It ranks first in the world, more than three times that of the second-ranked United States, and accounts for more than half of the global express package market. However, China has a vast territory, and the current express packaging lacks insulation measures for severe cold regions. Due to the low temperature in so...

AI Technical Summary

Problems solved by technology

The fresh-keeping express packaging box includes a box body and a box cover. The box body is composed of a three-layer structure, which is a double corrugated cardboard layer, a plastic foam layer and a single corrugated cardboard layer from outside to inside. There are a plurality of storage bags on the top, the storage bag includes a front surface and a rear surface, a sealing strip is provided between the top of the front surface and the rear surface, and the top of the rear surface has an arc-shaped hem , the arc-shaped flange is detachably connected to the front surface by snap buttons; the detachable function of the thermal insulation box in this patented technology is poor, and the recyclability is also poor, because the plastic foam in the thermal insulation box in this patented technology layer, that is, the insulation layer is fixed on the packaging box. After the delivery is completed, the insulation layer and the carton material are scrapped at the same time, resulting in waste of resources; in addition, the insulation performance of the plastic foam layer is poor. In order to achieve a certain insulation performance, plastic foam The thickness of the layer is thicker, resulting in less effective storage space inside the courier box

Images