Draw-bar box walking on steps
A trolley case and step technology, which is applied in the field of luggage, can solve the problems of low stability, low durability, and labor-saving, and achieve the effects of convenient manufacture and use, good operation effect, and strong shock absorption performance
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[0019] In the figure, the trolley box that can walk on the steps includes two runners and conductors symmetrically arranged on both sides of the rear of the trolley box. The trolley box consists of a box body 1, a box cover 2, a box lock chain 3 and Consists of 4 tie rods. Each runner group includes a conductive tube 7 and three open tubes 16 communicating with the conductive tube at intervals, that is, the conductive tube 7 and the back, middle and front three connected to the conductive tube. The middle opening pipe 16 is made as a whole. The runner group is composed of front runners, intermediate runners, rear runners and related accessories. The conduction pipe contains liquid (or compressed gas) medium 6 and the conduction pipe is fixedly connected with the support plate 15. The support plate is fixedly connected with the box body, and the work of the two runners does not interfere with each other. The open tube is sealed and equipped with a piston rod 9 which is connected...
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