Safety support for greening garden and flower pruning

The safety support comprises a fixing frame and a top plate, the top plate is movably connected to the fixing frame in an inserted mode in the mode that a limiting column is matched with a limiting frame, a rack is welded to the bottom of the top plate, a hand wheel is fixedly installed at one end of a rotating rod, a gear is welded to one end of the rotating rod, and the other end of the rotating rod is provided with a handle. The gear is meshed with the rack; through the arrangement of the fixing frame, the rotating rod and the rack and the cooperation of the hand wheel, the rotating rod, the gear and the rack, the rotating rod is rotated by rotating the hand wheel, the gear is driven to rotate when the rotating rod rotates, and the top plate can be jacked up through the rack when the gear rotates; the top plate is fixed by the hand screw through the limiting column, so that the top plate is prevented from shaking, and through the arrangement of the fixing frame, the rotating rod and the rack, when trees ar