Cold chain transportation packaging box

Abstract

The invention belongs to the technical field of logistics transportation, in particular to a cold chain transportation packaging box, comprising a box body. A circulation chamber is arranged outside the box body, and a storage chamber, a driving chamber, a dry ice chamber, partition plates and a rotating shaft are arranged in the box body. The circulation chamber is connected to the driving chamber and the dry ice chamber. The partition plates are arranged in the storage chamber, each partition plate is hollow and provided with a plurality of through holes, the inside of each partition plate is connected with the driving chamber, and a sponge layer is fixedly disposed in each partition plate. A first spring is disposed in each sponge layer, and spring coils of the first spring are pressedon the inner wall of the sponge layer. The rotating shaft is rotatably mounted in the driving chamber, the rotating shaft is provided with less than half a circle of teeth at the contact position of the first spring and the teeth on the rotating shaft are embedded between the two adjacent spring coils of the first spring, one end of the rotating shaft passes through the box body and extends into the circulation chamber, and the rotating shaft end portion in the circulation chamber is provided with rotating blades. The structure of the invention is simple, and fresh-keeping items that need to be kept fresh can be cooled to keep fresh, and the cold chain transportation packaging box is suitable for long-distance transportation of fresh-keeping items that need to be kept fresh.

Description

technical field [0001] The invention belongs to the technical field of logistics transportation, and specifically relates to a cold chain transportation packing box. Background technique [0002] With the widespread rise of the logistics and transportation industry, all kinds of fresh-keeping products will be delivered through logistics transportation. However, the long-distance transportation of frozen foods has always been a very troublesome problem. If frozen foods cannot be refrigerated and kept fresh during the long-term transportation Very big loss, proposes a kind of frozen food logistics transportation packing box for this reason. [0003] Patent Document 1: A frozen food logistics transportation packaging box, application number: 2017217929917 [0004] In the above-mentioned patent documents, the above-mentioned documents disclose a frozen food logistics transportation packaging box, which includes a box body, a dry ice chamber and a connecting block. The frozen fo...

AI Technical Summary

Problems solved by technology

[0006] In order to make up for the deficiencies of the prior art, the present invention proposes a cold chain transport packaging box. The purpose of the present invention is to solve the problem that fresh-keeping objects that need to be kept fresh cannot be kept fresh due to self-heating during transportation.

Images