Hand wheel rotating and switching device of electric actuating mechanism

The utility model discloses a hand wheel rotating and switching device of an electric actuating mechanism, which comprises a hand wheel, a pin shaft, a worm screw, a clutch, a roll ball and a spring,wherein the hand wheel is fixedly connected with the clutch, and the pin shaft is fixed on the worm screw and disengaged from or locked with the clutch. The utility model has the benefits that becausethe claw clutch is disengaged from or locked with the pin shaft fixedly connected to the worm screw, the manual/automatic switching of the electric actuating mechanism becomes simpler, and the operation becomes more convenient.