Fan blade, fan and blowing equipment

The utility model discloses a fan blade, draught fan and blowing equipment, the fan blade comprises a hub and a blade, the blade is connected with the hub, the blade comprises a first segment and a second segment, at least part of the first segment and at least part of the second segment are arranged at intervals in the circumferential direction and/or the axial direction of the hub, and a hollow area is defined by the first segment and the second segment; the blades are provided with outer ends far away from the hub, and the hollow areas are at least partially formed at the outer ends of the blades; a reference cylindrical surface is formed around the axis of the hub, and a space intersection line of the reference cylindrical surface and the blade is defined as a blade profile; at least on the portion close to the outer end of the blade, the blade profile of one of the first segment and the second segment protrudes towards the rotating direction of the fan blade, and the blade profile of the other segment protrudes away from the rotating direction of the fan blade. According to the technical scheme, noise caused by blade tip leakage vortexes of the fan blades can be reduced.