Dumping sail device capable of overcoming large overturning resistance

The invention belongs to the field of tilting sails, and relates to a safe, stable and low-power-consumption tilting sail device. A safe, stable and low-power-consumption tilting sail device is characterized by comprising sail blades (1); the sail blade base (11) is used for supporting the sail blades (1); the driving mechanism (100) is used for driving the sail blades (1) to pitch; the counterweight mechanism (200) is used for keeping moment balance of the sail blades (1) in the pitching process; and the counterweight mechanism (200) and the sail blade (1) are in a moment balance state at any angle position in the pitching process. The complex degree and the power consumption requirement of a hydraulic driving mechanism are reduced, meanwhile, the problem that a driving system is difficult to control the pitching speed of the sail and bear large impact loads is solved, the interference resistance to external impact loads is improved, and it is guaranteed that the motion of a sail pitching mechanism is more s