Valve for adjusting air volume of central air conditioner

The invention relates to the technical field of ventilation. The valve for adjusting the air volume of the central air conditioner comprises a valve body shell, a valve element, a plurality of valve blades and a driving mechanism; a plurality of rotating shaft holes are formed in the circumferential direction of the side part of the valve body shell; a valve body bottom plate is arranged at the bottom of the valve body shell; the valve element is arranged at the center of the valve body bottom plate; a plurality of valve blade rotating holes are circumferentially formed in the side wall of thevalve element; the left side and the right side of each valve blade are sequentially connected to form a circle; the driving mechanism comprises a motor, a driving rotating shaft, a plurality of driven rotating shafts, a plurality of cranks and a plurality of connecting rods; the motor is arranged on the valve body shell; one end of the driving rotating shaft is connected with the motor; the other end of the driving rota