SOLENOID VALVE FOR PLANT PROTECTION UNMANNED AERIAL VEHICLE, SPRAYING SYSTEM AND EXHAUST METHOD

摘要

A solenoid valve for a plant protection unmanned aerial vehicle, a spraying system and an exhaust method. The solenoid valve comprises: a valve core assembly (1), an adjustment assembly (2) and an electromagnetic assembly (3); the adjustment assembly (2) is arranged between the valve core assembly (1) and the electromagnetic assembly (3), and the adjustment assembly (2) comprises: a fixed housing (21), a driving gear (22), a rotating wheel (23), a connecting shaft (24) and a first spring (25); the driving gear (22) and the rotating wheel (23) are arranged inside the fixed housing (21), two ends of the rotating wheel (23) abut against the driving gear (22) and the valve core assembly (1) respectively, and two ends of the driving gear (22) abut against the rotating wheel (23) and the electromagnetic assembly (3) respectively; one end of the connecting shaft (24) abuts against the rotating wheel (23), and the other end of the connecting shaft (24) abuts against the driving gear (22); and the first spring (25) is sleeved on the driving gear (22). The solenoid valve does not need to be continuously energized, has a low power consumption, and can increase the efficiency of spraying operation when applied to a spraying system of a plant protection unmanned aerial vehicle.