Expanded-polystyrene plate insulation packaging box

Abstract

The invention discloses an expanded-polystyrene plate insulation packaging box. The expanded-polystyrene plate insulation packaging box comprises an expanded-polystyrene plate box body and a box cover covering the expanded-polystyrene plate box body, wherein a plurality of blind holes which are used for placing fresh keeping media are formed in side plates of the expanded-polystyrene plate box body and are arranged on the side plates of the expanded-polystyrene plate box body in an equally-spaced manner, and the depth of the blind holes is greater than or equal to that of the internal cavity of the expanded-polystyrene plate box body; hole plugs corresponding to the blind holes are arranged on the box cover, and the end parts of the hole plugs are conical. Ice cubes are sealed in the blind holes and cannot be in contact with objects in the internal cavity, so that the deterioration of the objects cannot be caused; the ice cubes are not required to be placed in the internal cavity, so that the capacity of the internal cavity cannot be affected; during actual implementation, the blind holes are formed in the side plates of the expanded-polystyrene plate box body, then, the thickness of the side plates can be increased, however, the blind holes are additionally formed in the side plates, the usage amount of expanded polystyrene plates cannot be increased, and thus, the cost cannot be increased.

Description

technical field [0001] The invention relates to a packaging box, in particular to a thermal insulation packaging box of a foam plastic board. Background technique [0002] The full name of the foam board is polystyrene foam (Expanded Polystyrene, referred to as EPS). Because of its light weight, firmness, shock absorption, low moisture absorption, easy molding, good water resistance, heat insulation, and low price, it is widely used in packaging, heat preservation, waterproof, heat insulation, shock absorption and other fields. One of the most widely used plastics in the world. Widely used in shockproof and fresh-keeping packaging of electrical appliances, handicrafts, food materials and fruits, etc. [0003] When the foam-plastic board packaging box is applied to the transportation of ingredients and fruits, in order to ensure the freshness of the ingredients and fruits, it is necessary to put fresh-keeping media in the packaging box, such as ice cubes, dry ice, etc. Sin...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a thermal insulation packaging box of foam plastic board to solve the problem in the prior art that the packaging box of foam plastic board uses ice cubes as the fresh-keeping medium. The problem of reducing the capacity of the packing box

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