Support unit and support system

The invention relates to a supporting unit and a supporting system, the supporting unit comprises a contraction state and an expansion state, the supporting unit comprises a supporting frame and a rotating bracket, the rotating bracket is rotatably connected to the supporting frame, and the rotating bracket can rotate between a bearing position and a folding position; when the rotating bracket is located at the bearing position, the rotating bracket is configured to bear the other supporting unit, and the other supporting unit is in a contraction state and is movably connected to the rotating bracket, so that the other supporting unit can move relative to the supporting unit; when the rotating bracket is located at the folding position, the supporting frame of the other supporting unit does not interfere with the rotating bracket in the forward moving process. 本发明涉及一种支护单元及支护系统，支护单元包括收缩状态和扩张状态，支护单元包括支护框架和转动托架，转动托架可转动地连接于支护框架，转动托架能够在承载位置和收起位置间转动；其中，当转动托架位于承载位置时，转动托架被配置为承载另一支护单元，另一支护单元呈收缩状态，且可移动地连接于转动托架，使得另一支护单元