Perforating device

The utility model relates to the field of open-air mining devices, and discloses a perforating device which comprises a U-shaped support, a threaded lead screw is rotationally connected between the inner walls of the two sides of the U-shaped support and close to the top end, a movable block attached to the inner wall of the top of the U-shaped support is connected to the threaded lead screw in a sleeved mode, and a first motor fixedly connected with the threaded lead screw is fixedly installed on the side wall of the U-shaped support. A movable block is arranged on the base, a rotary connecting mechanism is arranged in the movable block, a connecting workpiece is connected to the lower portion of the movable block through the rotary connecting mechanism, an angle adjusting mechanism is arranged in the connecting workpiece, and the angle adjusting mechanism is connected with a perforating assembly. And meanwhile, the perforating assembly can be driven by the angle adjusting mechanism to incline to adjust diff