Research on wheel-tracked climbing and transportation trolley based on mechanical design, control technology and sensor technology

With the development of the logistics industry, there is an increasing demand for cargo transportation in complex environments. For the difficult to access places such as stairs, the traditional handling method has the problems of low efficiency and high cost. In this paper, a wheeled stair climbing handling trolley is designed, which adopts a shear fork structure design to realize the free switching between flat ground and stairs, and is equipped with a variety of devices such as a retractable push rod, a pressure sensing booster device and an ergonomically adjustable pusher to realize the functions of cargo lifting and on-demand booster. By combining mechanical design, control technology and sensor technology, the trolley effectively solves the problem of cargo transportation in complex environments, featuring diverse functions, strong environmental adaptability, convenient operation, space saving, high safety and good economic benefits, and has a broad application prospect in the logistics and freight forwarding, medical care and other industries.