Shaftless wheel ring propeller

The invention provides a shaftless wheel ring propeller. The shaftless wheel ring propeller comprises a guide pipe, an inner ring and annular paddles. A plurality of annular paddles are arranged on the inner wall of the inner ring at equal intervals; the annular paddle is of an unclosed integrated annular structure, the unclosed end of the annular structure comprises a connecting part I and a connecting part II, and the annular paddle is fixedly mounted on the inner wall of the inner ring through the connecting part I and the connecting part II; the thickness of the annular paddle is gradually reduced from the connecting part I and the connecting part II to the part close to the center of the inner ring; the orthographic projections of the end faces, installed on the inner wall of the inner ring, of the connecting part I and the connecting part II on the radial section of the inner ring are staggered. The end faces, installed on the inner wall of the inner ring, of the connecting part I and the connecting par