The utility model provides an increase structural strength's wind -guiding circle, it includes the cylindrical metal body, the chamber is led to to inside formation of metal body a supplementary metal section of thick bamboo on the inner wall in logical chamber be equipped with supplementary circle on the lateral wall of metal body, the metal body forms solid fixed ring shape limit respectively in both ends around gu be equipped with one deck yielding rubber layer on the terminal surface on fixed ring shape limit gu fixed ring shape edge is equipped with the bolt hole, still include the assistance -localization real -time body, the assistance -localization real -time body has 2, lies in the lower terminal surface on solid fixed ring shape limit respectively through the welding, the assistance -localization real -time body is the inside oil groove that forms, the oil groove just is located the bolt hole below. The utility model discloses the problem that exists can be solved among the prior art, through improveing inside structure, holistic structural strength is increased.