Automatic-cleaning water quality detector for water quality on-line monitor

The invention relates to the technical field of water quality detection, in particular to an automatic-cleaning water quality detector for a water quality online monitor. The automatic-cleaning water quality detector comprises a connecting plate, the top of the front side of the connecting plate is fixedly connected with a support, and the top of the support is fixedly connected with a motor protection shell. When a user uses the automatic-cleaning water quality detector, the user places the water quality detector above a detected water quality detection bottle, then a motor is started, an output shaft of the motor drives a transmission rod to rotate, the transmission rod drives a first transmission disc to rotate, and the first transmission disc drives a short rod at the bottom to rotate; the short rod drives a mounting frame and a second transmission disc to rotate at the same time, the second transmission disc drives a connecting column at the bottom to rotate at the top of a fixed plate, finally, the clea