Flow control device

The utility model relates to a flow control device which is characterized by comprising a machine frame, a flow control device and a flow control device, the lifting seat is assembled on the rack along the vertical direction in a guiding manner; the first lead screw nut mechanism is used for driving the lifting seat to lift up and down, the first lead screw nut mechanism comprises a rotating lead screw and a lifting nut, the lifting lead screw extends in the vertical direction and is rotationally assembled on the rack, the lifting nut is arranged on the lifting seat, and the rotating lead screw is driven by a lifting motor or a lifting hand wheel to rotate; the servo motor is mounted on the lifting seat, and the servo motor drives a plug to lift up and down through a second lead screw nut mechanism so as to realize flow control; the flow control device provided by the utility model can effectively solve the technical problem of poor flow control precision caused by adjusting the plug by manually rotating the