Shaftless pump

A shaftless pump comprises an outer ring, a middle ring, an inner ring, a plurality of arc-shaped blades, a plurality of supporting rods and a flow guide cone. Round bayonets are vertically and symmetrically arranged on the outer ring, a U-shaped motor driving coil is arranged on the inner side of the middle ring to serve as a stator, the outer side of the middle ring is hinged to the round bayonets of the outer ring through two cylindrical hinge pieces, and the outer side of the inner ring is connected with the middle ring through a positioning bearing to serve as a rotor. One ends of the supporting rods are connected with the inner side wall of the inner ring, the other ends of the supporting rods jointly support and are connected with the flow guide cone, the flow guide cone is locatedin the center of the inner ring, and the arc blades are connected to the middles of the corresponding supporting rods and evenly distributed to form the impeller. By rotating the linkage body of the middle ring and the inner