Fixing device used for mounting equipment on power transmission tower

The utility model relates to a fixing device used for mounting equipment on a power transmission tower. The fixing device comprises a mounting plate, a first clamping plate and a second clamping plate, wherein the first clamping plate and the second clamping plate are respectively connected with the mounting plate; the first clamping plate, the second clamping plate and the mounting plate jointly clamp iron tower angle iron tower material; the first clamping plate is an L-shaped clamping plate, and two end faces of the first clamping plate are all provided with elongated bolt holes; a connecting end face of the mounting plate and the first clamping plate is provided with corresponding elongated bolt holes; the second clamping plate is an L-shaped clamping plate, one end face of the second clamping plate which is connected with the mounting plate is provided with bolt holes, and the other end face of the second clamping plate is provided with elongated bolt holes which are corresponding to the elongated bolt h