Ore leakage prevention device of large water mine draw shaft ore drawing equipment

The utility model discloses an ore leakage prevention device of large water mine draw shaft ore drawing equipment, and belongs to the technical field of mine draw shaft ore drawing equipment. According to the technical scheme, the two ends of rolling round steel (13) are rotationally connected to a rolling round steel fixing support (1) respectively, the rolling round steel (13) makes contact with a bottom plate of the vibratory ore drawing machine, round steel swing blocks (7) are arranged at the two ends of the rolling round steel (13) respectively, the middles of the round steel swing blocks (7) are connected with a cylinder rod of a telescopic oil cylinder (11), and a cylinder body of the telescopic oil cylinder (11) is rotationally connected to a telescopic oil cylinder fixing support (2); one end of the round steel swing block (7) is rotationally connected to the in-place switch bottom plate (3), the in-place switch bottom plate (3) is fixed to the rolling round steel fixing support (1), the other end o