Butt hinge of folding case and folding case

Abstract

The invention provides a gemel of a folding carton and the folding carton, wherein, the gemel comprises a fixed flap, a movable flap, a rotating pin, a lock pin and an elastic locking device. The fixed flap is provided with a fixed pivotal hole and a fixed locking hole; the movable flap is correspondingly provided with a movable pivotal hole and a movable locking hole; the rotating pin is inserted in the fixed pivotal hole and the movable pivotal hole to connect the fixed flap and the movable flap in a pivotal way; the lock pin can be inserted in and separate from the fixed locking hole and the movable locking hole; the elastic locking device is connected between an underframe of the folding carton and the lock pin; the elasticity of the elastic locking device forces the lock pin to be in parallel move toward the direction along which the lock pin is inserted in the fixed locking hole and the movable locking hole. The invention ensures the safety and reliability of the locking of the gemel with easy and efforts-saving operation, shortened operating time and enhanced working efficiency.

Description

technical field [0001] The invention relates to a component of a container, in particular to a hinge device of a folding box. [0002] The invention also relates to a folding box incorporating such a hinge arrangement. Background technique [0003] In the field of containers, folding boxes are widely used because of their small stacking space after folding, low cost of empty container transshipment, and convenient loading and unloading of goods. [0004] As early as the mid-1970s, folding boxes have been designed, researched, and applied. However, the folding boxes at that time were transformed from dry cargo boxes. When carrying a load, they were used as a complete dry cargo box. The side walls are folded inward respectively, and then the top plate is put on, and then the end walls at both ends are folded toward the inside of the box. Although it can save the transportation cost of the empty box, the box type lacks universality due to the complicated operation; until the e...

AI Technical Summary

Problems solved by technology

[0008] But the weight of the end wall 2' of the folding box is between 400 kilograms and 500 kilograms, and in the operation of inserting the locking pin and withdrawing from the locking pin, the resistance produced by the weight is relatively large, that is to say, the existing Although the hinge device can well realize the locking of the end wall in the u

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