The utility model relates to a down -the -hole impactor maintenance technical field especially relates to a kind of fixing device for down -the -hole impactor maintenance.A kind of fixing device for down -the -hole impactor maintenance, including bottom plate etc., two risers are fixedly connected with bottom plate top interval, the upper side of two risers is rotatably provided with short shaft, two short shafts are fixedly connected with U-
shaped beam between, two reinforcing plates are fixedly connected with U-
shaped beam middle interval, still including clamping
assembly, pushing
assembly and limiting component.The utility model can be completed to the clamping fixation of impactor simultaneously by rotating long shaft, save time and effort, reduce the degree of operation complexity, improve maintenance efficiency, applicability aspect, because adjacent clamping plate spacing is adjustable, can adapt to different
diameter model impactor, in addition, with angle adjusting function, can rotate U-
shaped beam adjustment impactor inclination angle, it is convenient to observe and maintain, and angle limit can be realized by block and gear engagement, guarantee maintenance smoothly.