The utility model discloses a first action bars of bevel gear driving, can long -range realization tight to transmission line stockbridge damper, the electrified school of strain clamp drainage platebolt, first action bars of bevel gear driving includes crank, insulating tube, dabber insulating tube, operating head support, inside the dabber insulating tube was located the insulating tube, the lower extreme linked to each other with the crank, upper end AND operation head support links to each other, can the sleeve of an operating head shelf location and the corresponding model of nut pretightening be 0 180 the within range rotates, during the use, waveing the crank and reach the operating head support through the dabber insulating tube with torsion, can the operating head support passesthrough the bevel gear realize 0 180 the within range is adjusted, realizes the long distance jack panel of leaving school, its overall structure is simple, compact, and the installation of being convenient for is carried, and it is tight to be applicable to the various schools towards the bolt of strain insulator shaft tower drainage plate, moreover, and can be according to the length of different voltage grade option action bars.