The invention relates to the technical field of subway rails, in particular to a rotary disk turnout. The middle area of the rotary disk turnout is provided with a movable turnout rail, and four side rails are fixed rails. The upper part of the turnout rail comprises connecting rotary disk running beams formed by an upper framework and a support beam, a guide beam is arranged on the middle of the turnout rail, the rotary disk running beams are arranged on two sides, an outside protective
welding plate is arranged outside the rotary disk running beams, and a roller
assembly is arranged on the lower end of the support beam; the upper part of the turnout rail is connected with the lower part of the turnout rail through a transmission shaft and a pivotal bearing
assembly, the lower part of the turnout rail is supported by a lower framework, a flat rail
assembly and a stop raceway assembly are arranged on the ground around the lower framework; guide beams are respectively arranged on the middles of the four fixed rails, a locking pin device is arranged on the end part of each guide beam, and a
hydraulic control device is arranged on a neutral gear between the two fixed rails, and is connected through a pipeline for centrally controlling the four locking pin devices and the rotary device on the center of the rotary disk turnout. The invention provides a matched rail changing technology for Guangzhou subway walking
system, and can realize linear guide when the rails are crossed.