Machine body of quickly-mounted floor fan

The machine body comprises a first machine body pipe and a second machine body pipe, the lower end of the first machine body pipe is fixedly connected with a lower block, a rotating cylinder and a connecting block are arranged in the first machine body pipe, and the connecting block is connected with the second machine body pipe through a connecting groove, a protrusion, a hemisphere groove, a first ball and a sliding groove. A rotating block is fixedly connected to the upper end of the rotating drum, a plurality of second balls are arranged between the rotating block and the first machine body pipe, the rotating drum is rotationally connected with the lower block, and third balls are arranged at the joint of the rotating drum and the lower block. The first machine body pipe is clamped with the rotary drum through the protrusions and the connecting grooves, the springs, the first balls, the semicircular grooves and the sliding grooves are detachably connected, the connecting mode is simple, and disassembling