Reusable low-temperature packaging box
A packaging box and low-temperature technology, applied in the field of low-temperature packaging boxes, can solve the problems of short cold storage time, heat damage of express items, and failure of express delivery items in refrigeration, so as to improve the refrigeration time and facilitate freezing
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[0042] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples or drawings are used to illustrate the present invention, but not to limit the scope of the present invention.
[0043] Such as figure 1 , 2 As shown, it includes a top cover 1, an outer box body 2, a lock 3, a reaction module 5, a freezing cover 6, a freezing box body 7, an insulating cover 36, an insulating box body 37, and an installation groove 45, wherein as image 3 , 7 As shown, the insulated box body 37 is nested and installed on the inner side of the outer box body 2, and the refrigerated box body 7 and the frozen cover 6 positioned at the insulated box body 37 and the insulated cover 36 are kept insulated by the insulated box body 37 and the insulated cover 36. Prevent the cold air loss of the freezing box body 7 and the freezing cover 6, so that the objects in the freezi...
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