The new model relates to the structural improvement of a mower.It includes at least one rotating frame body,At least one axis part at the center of the rotating frame body,At least one pivoting part at the edge of the rotating frame body,And a tool pivoted on the pivoting part at least 130 degrees of free rotation,Both sides of the tool are provided with cutting edges.Therefore, when the rotating frame body rotates, the cutter will protrude the edge of the rotating frame body due to centrifugal force to cut weeds.When the tool collides with the hard object, it will naturally swing in the direction between the pivot part and the axis part to reduce the tool damage.Because the tool can rotate freely at 360 degrees,So collision can be avoided.In addition, both sides of the tool have blades.Therefore, weeding can be carried out regardless of the forward or reverse rotation of the rotating frame.Thus, the utility model can be used in two directions and reduce damage.本新型為有關於一種割草機之結構改良，其包括有至少一旋轉架體、至少一位於旋轉架體中央處之軸心部、至少一位於旋轉架體邊緣處之樞接部、及至少一三百六十度自由旋轉樞設於樞接部上之刀具，且刀具之兩側處皆具有刃部；所以當旋轉架體轉動時刀具會因離心力凸出旋轉架體邊緣以利割除雜草等，且刀具於碰撞硬物時會自然往樞接部與軸心部間之方向擺動以減少刀具損傷，並因刀具可三百六十度自由旋動，所以可避免發生抵觸碰撞，再加上刀具之兩側處皆具有刃部，故不論旋轉架體正向旋轉或反向旋轉皆可進行除草，藉此令本新型達到可雙向使用且減少損壞之實用進步性。
