The invention belongs to the technical field of bags and suitcases, and particularly relates to a volume-variable multifunctional luggage case. The luggage case comprises a case body, a pull rod, telescopic clamping devices and walking devices, wherein the box body comprises a box bottom shell, a box top shell, a folding part and a folding door, the folding part is in a wave shape after being folded, the folding door is arranged on the front surface of the folding part, a group of the walking devices are arranged on the back of the box body in bilateral symmetry, the walking device is used formaking the luggage case walk, the pull rod is arranged on the back of the case body, the telescopic clamping devices are arranged on the box body in a bilateral symmetry mode, and the telescopic clamping devices are used for controlling the box body to be unfolded and folded. By stretching or compressing the box body folding part, the size of the box body is changed, so that the requirements of users on luggage boxes with different sizes are met, the size of the luggage box can be reduced as much as possible under the condition that enough storage space is guaranteed, and the luggage box is convenient for the users to carry and consignment.

Volume-variable multifunctional luggage case

The multifunctional luggage case provided by the utility model effectively solves the problems that the space size of the traditional luggage case cannot be adjusted, the size of the case cannot be adjusted at will when a small case, such as a boarding case, a large case, such as a vacation case and an open school case, is needed, and the case is inconvenient to go to a floor without an elevator;the technical scheme is as follows. Box body, telescopic pull rod, universal wheel and lock catch, the box is composed of a box body and a box cover. The box body is composed of an upper shell and a lower shell. Upper shell smaller than lower shell, the upper shell and the lower shell are connected in a sliding manner; one corresponding side surfaces of the two lower shells are hinged together; the stair climbing auxiliary device comprises a stair climbing auxiliary device body and further comprises a worm and gear adjusting device body for adjusting the angle between the upper supporting frame and the side face of the shell, and the stair climbing auxiliary device is ingenious in structure, capable of adjusting the space size of the box body, capable of assisting in climbing stairs underthe condition that no elevator exists and convenient to use.

Wang Jiyue

Papers

Multifunctional luggage case