Small household vertical pipeline axial flow type water turbine

The invention belongs to hydroelectric generation equipment and particularly relates to a small household vertical pipeline axial flow type water turbine comprising a bent pipe. One end of the bent pipe is vertically downward. The other end of the bent pipe is horizontally arranged or obliquely arranged in an upward manner. The upper end of the bent pipe is a water inlet end, and the lower end of the bent pipe is a water outlet end. The bent pipe is provided with a vertical transmission shaft. The lower half portion of the transmission shaft is located in a vertical pipe segment of the bent pipe and coaxial with the vertical pipe segment. A seal is arranged on the contact portion of the transmission shaft and the bent pipe. The upper half portion of the transmission shaft is provided with a transmission mechanism. The lower end of the transmission shaft is provided with an impeller. Compared with a traditional water turbine, the water turbine is compact in structure, no special water conservancy facilities ne