One-way ball valve with good sealing performance

The utility model discloses a one-way ball valve with good sealing performance, and relates to the technical field of one-way ball valves, the one-way ball valve comprises a valve body, the left end of the valve body is fixedly connected with a water inlet pipe, the left end of the water inlet pipe is fixedly connected with a first connecting pipe through a connecting flange, and the inner surface of the first connecting pipe is fixedly connected with a buffer pipe; two connecting rods are fixedly connected to the inner surfaces of the upper end and the lower end of the buffer pipe correspondingly, buffer blocks are fixedly connected to the other ends of the two connecting rods correspondingly, connecting flanges are fixedly connected to the outer surfaces of the water inlet pipe and the first connecting pipe correspondingly, and a second connecting pipe is fixedly connected to the upper end of the valve body; the upper end of the second connecting pipe is fixedly connected with a motor, the output end of the