Vane structure for vertical axis wind power generator

A vane structure for vertical axis wind power generator, comprising a plurality of vanes mounted around and spaced along a main shaft of the wind power generator, each of the vanes comprising:

• a vane body having a body portion that defines a rearward recess;
• and the body portion including a front plate portion, on which a through hole is formed;
• a first arcuate guide bar being located in the rearward recess, and having a first end and an opposing second end;
• the second end being fixedly connected to the body portion and the first end being located at a center of the through hole;
• an openwork screen being fitted in the through hole and connected to the first end of the first arcuate guide bar;
• a first movable baffle unit having openings formed thereon and being located in the rearward recess of the vane body behind the openwork screen;
• the first movable baffle unit including a second arcuate guide bar in the form of a sleeve slidably fitted around the first arcuate guide bar, and being connected to the front plate portion of the vane body via a pivot point on a baffle support bar, so that the first movable baffle unit is turnable about the pivot point to openably cover the openwork screen from one side adjacent to the rearward recess;
• and the second arcuate guide bar having a proximal end and a distal end, and a radially outward extended flange formed around the distal end;
• and
• a second movable baffle unit being located in the rearward recess of the vane body behind the first movable baffle unit;
• the second movable baffle unit being slidably fitted around the second arcuate guide bar to openably cover the first movable baffle unit from one side adjacent to the rearward recess.