Folding stairs-climbing trolley

Abstract

The invention discloses a folding stairs-climbing trolley which comprises a supporting frame. Two insertion columns at the lower end of the supporting frame penetrate slide sleeves, inner slide sleeves, supporting sleeves, toothed pipe sleeved, torsion springs and foot stands sequentially. Tail ends of the two insertion columns at the lower end of the supporting frame are rotationally connected totwo ends of a shovel plate. Lower ends of supporting seats are connected to lower portions of rotating blocks and positioned on upper sides of joints of the foot stands and the rotating blocks. Triangular supports are connected to upper ends of the rotating blocks, and rollers are rotationally connected to three ends of each triangular support. The folding stairs-climbing trolley has advantages that by arrangement of the rollers, a function of traveling on stairs can be realized; due to rotatability of the supporting sleeves and the foot stands, the triangular supports on two sides can be conveniently folded inwards to realize a roller collection function, and a trolley storage space is saved; upper ends of the foot stands and lower ends of the toothed pipe sleeves are provided with bevelports, and the torsion springs are arranged in the foot stands, so that the triangular supports can be unfolded conveniently under the rotating thrust action of the torsion springs.

Description

technical field [0001] The invention belongs to the technical field of trolleys, and in particular relates to a folding stair climbing trolley. Background technique [0002] Most of the existing trolleys only have two wheels, which is convenient for transporting goods on flat roads, but once it is necessary to transport between floors, it is very troublesome when there is no elevator, and the existing trolleys cannot be used at all. Walking on the stairs, and it does not have the function of folding wheels, so it takes up a lot of space for storage and transportation. Contents of the invention [0003] The object of the present invention is to provide a foldable stair climbing vehicle to solve the problems raised in the above-mentioned background technology. [0004] In order to achieve the above object, the present invention provides the following technical solutions: a foldable stair climbing vehicle, including a bracket, and the two posts at the lower end of the bracke...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing trolleys only have two wheels, which is convenient for transporting goods on flat roads, but once it is necessary to transport between floors, it is very troublesome when there is no elevator, and the existing trolleys cannot be used at all. Walking on the stairs, and it does not have the function of folding wheels, so it takes up a lot of space for storage and transportation

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