Low-cost rotary drilling pile-forming device

The utility model relates to the technical field of rotary excavating hole forming, in particular to a low-cost rotary excavating drilling pile forming device which comprises a vehicle body, a supporting column is arranged on one side of the vehicle body, a threaded rod is in threaded connection with one side of the supporting column, and a plurality of fixing nuts are in threaded connection with the outer surface of the threaded rod. And one end of the threaded rod is fixedly connected with a hanging ring. Compared with the prior art, the winding device has the advantages that the supporting column, the threaded rod, the fixing nut, the hanging ring, the motor, the winding roller, the steel wire rope, the lock hook and the oil cylinder are arranged in a matched mode, the structure that the steel wire rope lifts the supporting column is added under the condition that the oil cylinder lifts the supporting column, and when the pressure of the oil cylinder is insufficient, the supporting column can be lifted thr