Stroke momentum write off ware includes the columniform handle, installs the one end of connecting rod on the handle, and the other end of connecting rod sets up beating of slope and sells hook and two landing legs, beats round pin chimoto one side and sets up dozen cotter way, beats to sell to catch hold of with a hook to be located connecting rod one side, and two landing legs are located the connecting rod opposite side. The utility model discloses in, set up and to beat round pin hook and two landing legs, to beat the round pin and catch hold of with a hook and to collude in the outer collar extension of spring catch through beating the cotter way, two landing legs touch with the insulator mutually and for the connecting rod provides the fulcrum, operating personnel exerts the power to the landing leg orientation to the connecting rod, will beat to sell to catch hold of with a hook and prize to make the spring catch break away from the insulator, this kind of simple structure, one hand can accomplish a whole set of write off action, are fit for high altitude construction, and the write off is fast, and the insulator is changed efficiently.