Folding cart capable of freely adjusting height

The invention discloses a foldable cart capable of freely adjusting height, which comprises a lifting assembly comprising a bottom plate, a middle plate and a top plate, a rotating assembly which is arranged on one side of the lifting assembly and comprises a bottom side plate, a middle side plate and a top side plate, and telescopic assemblies which are arranged on two sides of the lifting assembly and comprise connecting rod pieces, limiting rods and a lifting plate, the power assembly is arranged on the side face of the bottom plate and comprises a motor, a reciprocating lead screw and a reversing rod. According to the device, the height of the second layer and the height of the third layer can be freely adjusted, operation is easy, and great convenience is provided for personnel carrying many tools during operation. 本发明公开了一种可自由调节高度的折叠推车，其中有升降组件，包括底板、中板和顶板，还有旋转组件，设置于所述升降组件一侧，包括底侧板、中侧板和顶侧板，还有伸缩组件，设置于所述升降组件两侧，包括连杆件、限位杆和升降板，还有动力组件，设置于所述底板侧面，包括电机、往复丝杆和换向杆。本发明所述装置可以自由调整二层和三层的高度，且操作简单，为作业时携带很多工器具的人员提供了很大的便利。