Fan blade protection device of small-size wind driven generator

The utility model relates to a fan blade protection device of a small-size wind driven generator. A fan blade component of the existing small-size wind driven generator takes a fan blade connecting disc as a base body and does not protect a fan blade; two side faces of the fan blade are not limited and the fan blade connecting disc is in a claw type structure; the stress of the root part is the greatest under the working condition of strong wind, claws are frequently broken and then the fan blade is damaged. The utility model aims at developing the fan blade protection device of the small-size wind driven generator. A reinforcing rib is arranged on the connecting disc of the structure and three grooves are uniformly distributed at one side of the connecting disc; and mounting holes in the grooves are concentric to anti-sliding hexagonal holes. The fan blade protection device of the small-size wind driven generator effectively protects the fan blade of the small-size wind driven generator and practically guara