Hydraulic driven jaw-type clutch impeller combination and swimming pool bottom hydraulic pushed automatic cleaner comprising same

An automatic cleaning machine driven by hydraulic power from a bottom of a swimming pool and a hydraulic drive jaw type clutch impeller combination thereof are provided. The automatic cleaning machine comprises an underwater cleaning machine (1) and a control power supply (2) connected together by a buoyancy cable. The underwater cleaning machine (1) comprises a cabinet cover (11), a cabinet body (12), a filter (13), a two- axis motor assembly (14), a hydraulic drive jaw type clutch impeller combination (15), inlet and outlet passages (16), wheels and wheel carriers (17), a shielding cover (18) and a cable (19) with a floater. The hydraulic drive jaw type clutch impeller combination (15) engages or disengages reliably under hydraulic power as the motor changes the rotation direction. A water outlet of a water jet is changed by varying the operating modes of the impellers (151), such that a direction of movement of the cleaning machine is changed. The cleaning machine is made to adjust azimuth automatically after the cabinet runs into a pool wall, and change the direction of movement of the cleaning machine An arranged suction pipe (123) and a one-way valve for draining (124) can prevent disturbance and diffuseness from dirt on the bottom surface of the pool and reduce the weight of the cleaning machine when rising from water. Furthermore, two or more axial flow pumps are arranged horizontally and parallel so as to let the cleaning machine perform turning its way and fulfill an order and complete cleaning.