Sea floating garbage salvaging mechanism and operation method

The invention discloses a sea floating garbage salvaging mechanism and an operation method, and belongs to the technical field of salvaging mechanisms. A salvaging floating hose is quickly thrown out to a position covering surrounding floating garbage through rotation of a driving winding and unwinding rope wheel and a driven winding and unwinding rope wheel, and then another group of winding and unwinding rope motors are started to drive a driving rotating rod to rotate; a driving gear is driven by the driving rotating rod to rotate, a driven gear is driven by the driving gear to rotate, the driving winding and unwinding rope wheel and the driven winding and unwinding rope wheel are driven by the driven gear and the driving gear to rotate, the salvaging floating hose is recycled and salvaged, and therefore garbage is pulled back to the position above a filter cartridge; an electric compression rod is started and drives a compression block to move, the compression block drives an elastic pressing and holding