Gynecological vaginal dilator

A supporting body is vertically arranged, a handheld part is installed on the front face of the supporting body, the top of a threaded rod penetrates through a bearing seat, a handle is arranged at the end of the threaded rod, the threaded rod is in threaded connection with a nut moving seat, a movable transverse rod is fixedly arranged on the nut moving seat, and a fixed transverse rod is arranged on the bearing seat at the corresponding position below the movable transverse rod. U-shaped grooves are formed in the movable cross rod and the fixed cross rod, racks are arranged in the U-shaped grooves, positioning seats are arranged on the movable cross rod and the fixed cross rod in a sleeving mode, positioning gears are installed in the positioning seats through rotating shafts, the positioning gears are meshed with the racks, one end of each rotating shaft penetrates through the corresponding positioning seat, an outer gear is arranged at the end of each rotating shaft in a sleeving mode, and the outer gears