Early warning device for water quality detection instrument

The utility model relates to the technical field of water quality detection, and discloses an early warning device for a water quality detection instrument, which comprises a shell, a connecting pipe is arranged on the inner wall of the shell, a limiting frame is fixedly assembled on the inner wall of the shell, the inner wall of the limiting frame is fixedly assembled with the outer edge of the connecting pipe, a water pump is fixedly assembled on the inner wall of the shell, and the water pump is fixedly assembled on the inner wall of the shell. And a water inlet of the water pump is fixedly sleeved with the inner wall of the connecting pipe, and a solenoid valve water inlet pipe is fixedly assembled at a water outlet of the water pump. According to the early warning device for the water quality detection instrument, through cooperative use of a motor and a circular gear, the circular gear is driven by the motor to rotate, so that a gear lantern ring is driven by the circular gear to rotate, then a water in