Rotary distributing valve

The utility model belongs to a medical equipment technology and in particular relates to a rotary distributing valve used for controlling channels of each reagent cylinder and a main working cylinder on a connecting channel of the main working cylinder and the reagent cylinders on a vacuumizing dehydrator for biological tissue inspection. The rotary distributing valve is characterized in that a lower valve seat and a plurality of reagent cylinder joints are fixed on a distributing valve mounting seat; a fixing plate and a bracket are fixed on the lower valve seat; a rotating motor is fixed on the fixing plate; a rotating frame is arranged on the lower valve seat and is fixedly connected with a rotating gear; a lifting ejector rod shaft is inserted into central holes of the lower valve seat, the rotating frame and the rotating gear; a rotating arm is sleeved on the lifting ejector rod shaft and is fixedly connected with a liquid inlet jack; the liquid inlet jack is inserted into the rotating gear and the rotat