Abstract: Disclosed is an automatic cleaning device for toilet seats. A motor drives upper and lower transmission gear sets. The upper transmission gear set, after reduction, drives a scrub disk, while the lower transmission gear set has a main gear in front to engage a toothed ring at the inner ring of the toilet seat. The turning of the main gear enables the toilet seat to rotate about 360 degrees. Another motor drives a lateral gear set to further drive a drag mechanism. When the two cantilever arms of the drag mechanism swing, the link arms at a lower end will drive a drag block which has two slide blocks.

Abstract: An automatic toilet seat cleaning system including a movable toilet seat supported on a toilet bowl of a toilet in front of a toilet water tank and moved between a front side position and a rear side position, a fixed first motor, a transmission mechanism controlled by the first motor to turn the toilet seat horizontally when the toilet seat is moved to the rear side position, a fixed second motor, a wheel brush turned by the second motor to clean the toilet seat when the toilet seat is moved to the rear side position and turned by the transmission mechanism, a waste water tank adapted to hold waste water falling from the movable toilet seat, a water tube adapted to guide clean water to the wheel brush for cleaning the toilet seat, and an electrical dryer controlled to dry the toilet seat.