Packing box and logistics method
2015
The invention relates to the technical field of packing boxes for commodities and logistics, in particular to a packing box and a logistics method. The packing box comprises a box body, a password lock and cargoes; a piston cavity, a piston, a spring and a limiting rod are arranged at a shaft core part of a password wheel device, the elasticity Fn of the spring acts on the top of the piston, the air pressure of air inflated into the top of the piston cavity is Pb, and the air pressure of air inflated into the bottom of the piston cavity is Pa; the air pressure of the air and the elasticity meet the condition that Pa>Pb+Fn. The packing box and the logistics method have the advantages that the cargoes are packed into the packing box instantly after leaving a factory, the cargoes in the packing box are not polluted in the transportation process, exchange of the cargoes in the logistics process is avoided, and the packaging box can be opened only after verification is successful. In particular, the packing box has the damage-prevention functions such as the cutting damage prevention function, the electric drill damage prevention function, the pressure damage prevention function and the password trial and error prevention function; it is guaranteed that the cargoes are quality goods, and marketing tracking on the cargoes can be carried out after the cargoes leave the factory.
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