Internal cooling structure of rotary valve clack of high-temperature quick valve

The utility model discloses an internal cooling structure of a rotary valve clack of a high-temperature quick valve, which relates to the technical field of valves and comprises a valve rod and a valve clack, the valve rod comprises an upper valve rod and a lower valve rod, the valve clack is connected with the upper valve rod and the lower valve rod into an integral structure, and the upper valve rod and the lower valve rod are fixedly mounted on the upper side and the lower side of the center of the valve clack. The upper valve rod and the valve clack are of a hollow structure and are communicated with each other, a valve rod core assembly is arranged in the upper valve rod, the upper end of the valve rod core assembly is in sealing fit with the upper valve rod, a water inlet pipe and a water outlet pipe are arranged at the upper end of the valve rod core assembly, and a pipeline for cooling water to flow through the upper valve rod and the valve clack is arranged in the valve rod core assembly. A bearing u