Hand-driven mechanical grounder device

The invention relates to a hand-driven mechanical grounder device which comprises a base, wherein a vertical main support bar and an insequent auxiliary support bar are fixed on the base, and the main support bar is connected with the auxiliary support bar through a connecting shaft; the upper and lower ends of the auxiliary support bar are respectively provided with an upper belt wheel and a lower belt wheel, a hand crank rod is fixed on the upper belt wheel, and a first synchronous belt is arranged between the upper belt wheel and the lower belt wheel; the top end of the main support bar is fixedly connected with a tray with a gap, the tray is provided with a top end belt wheel on a gap position, and a second synchronous belt is arranged between the top end belt wheel and the lower belt wheel; the second synchronous belt is provided with a support ball column, a small ball is placed on the support ball column, and the small ball is corresponding to the gap; and the tray is an inclined plane, the gap is posi