Ball valve structure based on cam control

The invention relates to the field of ball valves, and discloses a ball valve structure based on cam control, ejector blocks are symmetrically arranged on the inner wall of an anti-overflow ring, the top ends of the ejector blocks are attached to the inner wall of the anti-overflow ring, connecting rods are fixedly connected to the inner walls of the ejector blocks, and pressing plates are fixedly connected to the top ends of the connecting rods; connecting columns are symmetrically arranged on the inner wall of the pressing disc, the outer surfaces of the connecting columns are in sliding connection with the inner wall of the pressing disc, springs are symmetrically arranged at the bottom of the pressing disc, the top ends of the springs are fixedly connected with the bottom end of the pressing disc, and the pressing disc of the spill-proof mechanism is hydraulically impacted to enable the pressing disc to press the springs to deform, so that the pressing disc slides on the surfaces of the connecting columns