Cast-in-situ bored pile for engineering

The utility model discloses an engineering cast-in-situ bored pile which comprises a pile casing body, a limiting ring, a plurality of supporting frames, an adjusting plate, a sliding groove, a rotating hole and a rotating rod, the limiting ring is fixedly connected with the top of the surface of the pile casing body, the supporting frames are movably installed on the right side of the top of the limiting ring, and the supporting frames are annularly distributed at equal intervals. The adjusting plate is movably connected to the top of the supporting frame, the sliding groove is formed in the bottom of the adjusting plate, the rotating hole is formed in the right side of the supporting frame, the rotating rod is movably connected into the rotating hole, and the left end of the rotating rod is movably connected with the sliding groove. The positioning ring groove is formed, the positioning ring groove is matched with the positioning assembly to position the rotating rod, and the problems that in the using proc