Mechanical lock catch structure of landing door

The utility model discloses a mechanical lock catch structure of a landing door, which belongs to the technical field of elevator equipment, and is characterized by comprising a landing door main body, a landing door frame and a linkage rod, the landing door main body is arranged on the landing door frame in a sliding manner, a linkage plate is arranged on the landing door main body, and a movable plate is rotatably connected to the landing door main body; when the lifting assembly is matched with the linkage plate through the linkage rod to drive the landing door body to ascend and be opened, the linkage rod makes contact with the movable plate, and then the movable plate rotates and drives the positioning lock hook to be separated from a landing door frame. When the lifting assembly drives the landing door main body to descend and be closed through the cooperation of the linkage rod and the linkage plate, the linkage rod is separated from the movable plate, and then the movable plate rotates and drives the