Transportation packaging box capable of achieving secondary freezing

Abstract

The invention discloses a transportation packaging box capable of achieving secondary freezing. The transportation packaging box structurally comprises a box cover, a box body and an inner box, the box cover is buckled to an opening of the box body, the inner box is installed in the box body, a refrigeration cavity is formed between the inner box and the inner wall of the box body, the refrigeration cavity communicates with the two ends and the bottom in the box body, ice placing plates are arranged in the middles of the two ends in the refrigeration cavity, a plurality of water filtering holes are formed in the ice placing plates, a trigger device is arranged below the ice placing plates, a detachable freezing groove is formed in the middle of the bottom end of the inner box, the bottom of the freezing groove is located in the refrigerating cavity, a refrigerant is contained in the freezing groove, and a through opening is formed in the side wall of the freezing groove. The packaging box is simple in structure and convenient for operation, express items in the inner box are subjected to heat absorption to be frozen again through the design that ice block melted water reacts with the refrigerant to absorb heat, so that the refrigeration time of the packaging box is prolonged.

Description

technical field [0001] The invention relates to a transport packaging box capable of secondary freezing, which belongs to the technical field of packaging boxes. Background technique [0002] With the rapid development of the express delivery industry, when transporting express items that need to be refrigerated, the outside of the express items is usually wrapped with a layer of ice cubes, and then the outside of the ice cubes is wrapped with foam to keep them warm. The block will gradually melt over time, and the cold storage of the express items will fail, causing the express items to be damaged by heat, and the cold storage time is short. The design is suitable for the express industry, and a cooler with a longer cold storage time is necessary. . Contents of the invention [0003] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a secondary freezing transport package to solve the existing problems. [0004] In order to...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the express delivery industry now, when transporting express items that need to be refrigerated, the outside of the express items is generally wrapped with a layer of ice cubes, and then the outside of the ice cubes is wrapped with foam to keep them warm. The blocks will gradually melt over time, and the refrigeration of the express items will fail, causing the express items to be damaged by heat, and the cold storage time is short. The design is suitable for the express industry, and a cooler with a longer cold storage time is necessary.

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