This creates a kind of safety labor-saving safeguard structure improvement of grass trimmer,It is that a kind of offer mowing safety convenient pushes away the mowing protective device improvement design for controlling laborsaving operation,The holding rod bottom end of main what grass trimmer,It is fixedly mounted with a fixed frame above mowing blade assembling tool apron,The protective frame enclosed for lock group two sides with respect to half shape frame,Make protective frame can safety and firmness opposite insert group it is rack-mounted,The blade for providing different length does protective frame assembling width adjustment,Or the transformation for turning to assembling is done,And Hou assembles wheel tool respectively before protective frame,It is provided with simplicity and pushes away control operation,Reach to hold when mowing and controls purpose laborsaving and that mowing safe operation is practical.本創作一種割草機之安全省力防護結構改良，係一種提供割草安全便利推控省力操作的割草防護裝置改良設計，主要於割草機的握持桿底端，割草刀片組裝刀座的上方固裝一固定架，供鎖組兩側相對半形框圍的防護架，使防護架可安全穩固的相對插組架裝，提供不同長度的刀片做防護架組裝寬度調整，或做轉向組裝之變換，而防護架前後分別組裝一輪具，供以簡便推控操作，達到割草時握控省力及割草操作安全實用之目的。
