A dual-purpose transportation device for flat ground and stairs

Abstract

The invention relates to a dual-purpose transportation device for flat ground and stairs, which is mainly composed of a vehicle frame, pull rods, rollers, sliders and brake blocks. The tie rod is fixed in the square groove at the front end of the frame through bolts, the connecting rod is connected to the pins on both sides of the frame and the tie rod; the crankshaft is connected between the frame and the rollers; guide rails are arranged on both sides of the frame, and the sliders are connected to the upper and lower sides of the guide rail In the side square groove; the inner and outer circular arc grooves of the guide rail are embedded with springs and stoppers; one end of the spring acts on the end face of the arc groove, and the other end acts on the cylindrical end face of the stopper; the stopper cooperates with the slider, and the brake block passes through the pin shaft Hinged to the rear end of the frame. The invention can realize sliding transportation upstairs; after going upstairs, the crankshaft is rotated from the upper side of the positioning block to the lower side, so that the rollers touch the ground to realize rolling transportation; the structure is simple, convenient for transportation and device storage; Higher value.

Description

technical field [0001] The invention relates to a dual-purpose transport device for flat ground and stairs, belonging to the technical field of transport devices. Background technique [0002] At present, the short-distance transportation of heavy objects on flat ground mainly relies on roller trolleys, while in the corridors without elevators, it mainly relies on manual lifting and handling, which is time-consuming and laborious. In order to solve the problem of carrying goods up and down the stairs, people have also proposed many solutions, most of which are improved on the design of the rollers, but generally show problems such as poor movement continuity or very complicated structures when the function of going upstairs is realized. In view of these problems, the present invention proposes a dual-purpose transportation device for flat ground and stairs, which realizes the continuous upward sliding of the transportation device on the stairs through the alternating action ...

AI Technical Summary

Problems solved by technology

[0002] At present, the short-distance transportation of heavy objects on flat ground mainly relies on roller trolleys, while in the corridors without elevators, it mainly relies on manual lifting and handling, which is time-consuming and laborious.

In order to solve the problem of carrying goods up and down the stairs, people have also proposed many solutions, most of which are improvements in the design of the rollers, but generally show problems such as poor movement continuity or very complicated structures when the function of going upstairs is realized.

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