Cooling fan with flow adjusting function

The cooling fan with the flow adjusting function comprises an adjusting box, the left side of the adjusting box is communicated with an air duct, a rotating motor is fixedly installed in an inner cavity of the air duct through a support, and the output end of the rotating motor is fixedly connected with fan blades. The device comprises an adjusting box, an air duct, a rotating motor, fan blades, a rotating shaft, an adjusting plate, a first gear and a second gear, rotating shafts are evenly and rotationally connected between the top and the bottom of an inner cavity of the adjusting box through bearings, and the opposite ends of the upper rotating shaft and the lower rotating shaft are fixedly connected with the adjusting plate. By arranging the vertical plate, the screw rod, the movable plate and the tooth plate, the second gear can be limited, by arranging the structure, the cooling fan has the advantage of having the flow adjusting function when being used, the problem that an existing cooling fan does not