Bag clamping device of flood prevention sand bag bagging machine

The utility model relates to the technical field of flood prevention, and discloses a bag clamping device of a flood prevention sand bag bagging machine, which comprises a sand box and a sand outlet fixedly connected to the bottom of the sand box, the bottom of the sand box is fixedly connected with a fixed circular ring, and a plurality of U-shaped limiting blocks are arranged on the lower surface of the fixed circular ring along the circumferential direction at equal intervals. A fixing plate is fixedly connected to the side, close to the circle of the fixing circular ring, of the U-shaped limiting block, a rotating disc is installed in the fixing circular ring, the outer edge of the rotating disc is clamped between the fixing plate and the sand box bottom plate, a positioning ring is connected to the lower portion of the rotating disc through a supporting column, and a plurality of swing rods are rotationally connected between the positioning ring and the rotating disc in the axial direction. And the other