Wind -force rotary device of swing acanthus leaf

The utility model provides a wind -force rotary device of swing acanthus leaf to the angle mechanism that solves cylinder and sha bainiushi (savonius) windmill or waterwheel change blade is all very complicated, and the difficult problem of making. The utility model discloses a roof, bottom plate, pivot, bent plate, swing acanthus leaf and dead lever, pivot run through the perpendicular central authorities of roof and bottom plate, and the roof is fixed in to the bent plate upper end, and the lower extreme is fixed in the bottom plate, and the bent plate is establish respectively in the both sides of convex surface and the both sides of concave surface, one side the parallel pivot of swing acanthus leaf be provided with the connecting shackle bent plate. The utility model discloses application swing acanthus leaf is the concave surface on one side when the windmill facings the wind, the another side of symmetrical pivot is the convex surface, and an angle can be swung because of wind -force to the swing acanthus leaf when convex surface facingd the wind, and make the convex surface produce the space, and reduce the windage, the torque and rotational speed of multiplicable windmill like this, the utility model discloses the intensity that supports upper and lower plectane in response to the swing acanthus leaf is not enough, and adopts net support bearing structure can overcome the problem that intensity is not enough.