Splicing type packaging box for cold-chain logistics and low-temperature storage method thereof

Abstract

The invention discloses a splicing type packaging box for cold-chain logistics and a low-temperature storage method thereof. The splicing type packaging box for cold-chain logistics comprises a box body, a box cover and a pressure vale, wherein the top end and the edge side of the box body are separately equipped with the box cover and a gas charging hole; the gas charging hole communicates with afirst cavity; the first cavity is arranged in the inner wall of the box body; the pressure valve is mounted at the edge side of the top of the box body; the pressure valve is connected to the first cavity; the bottom end of the box body is provided with supporting legs; and blocking holes which are perpendicularly distributed are formed in the top end side wall of the box body. According to the splicing type packaging box for cold-chain logistics and the low-temperature storage method thereof disclosed by the invention, an internal structure is re-designed, so that contact efficiency of coldgas and articles can be improved while cold gas is charged into the box body; meanwhile, acting force, brought by introduction of cold gas, can be utilized to clamp and fix the articles inside the boxbody; and the box body can be stably spliced up and down, so that placing, in a vehicle body, of the box body is more stable.

Description

technical field [0001] The invention relates to the technical field of cold chain logistics, in particular to a spliced ​​packaging box for cold chain logistics and a low-temperature preservation method thereof. Background technique [0002] Cold chain logistics refers to the technical means of using refrigeration technology to store items at low temperature during long-distance transportation to ensure that items will not deteriorate due to excessive temperature. It is more common and common in modern people's lives. One is to place the items in the packing box, and then pile them up in the cold chain transport vehicle for uniform transportation, but the existing similar packing boxes have the following problems: [0003] 1. Since the car body structure itself has a refrigeration mechanism, the packing box itself does not need to be refrigerated, but because the packing box itself has a certain heat preservation effect, the heat exchange efficiency between the cold air in t...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a spliced ​​packaging box for cold chain logistics and its low-temperature storage method, to solve the above-mentioned background technology, because the car body structure itself has a refrigeration mechanism, so the packaging box itself does not need to be refrigerated, but because the packaging box It has a certain heat preservation effect, so the heat exchange efficiency between the cold air in the compartment and the items is low, and because the box body is generally equipped with a corresponding clamping limit mechanism, this further reduces the contact efficiency between the items and the low-temperature air. The low temperature storage effect is poor; simply relying on the plane contact between the bottom and the top of the box to accumulate is obviously not stable enough, and it is easy to dislocate the box due to bad road conditions and bumpy vehicles, and it is easy to fall from a high place and damage the contents of the box.

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