Modular multi-variant robot based on trolley

The invention relates to a modular multi-variant robot based on a trolley, both sides of a trolley module are correspondingly driving trolleys, an inner side of the trolley module is two rotating trolleys which are connected and fixed successively through the first connecting shaft, the second connecting shaft and the third connecting shaft, the driving trolleys and the rotating trolleys are arranged as mirror images of each other, a front end connector is fixed between second caterpillar bands of the rotating trolleys, a rear end connector is fixed between second fixed plates of the rotatingtrolleys, the driving trolleys and the rotating trolleys are mutually parallel, the height of each driving trolley is greater than the height of each rotating trolley, and the positions of the front end connector and the rear end connector are arranged in a staggered mode. According to the modular multi-variant robot based on the trolley, combination modes are various, the load is large, a movement has a high freedom degr