Online monitoring and regulating device for pH value of water quality

The utility model discloses a water quality pH value on-line monitoring regulation and control device, relates to the technical field of water quality monitoring regulation and control, and comprises a box body and a pH regulation mechanism fixedly connected on one side of the top surface of the box body, a pH detector is fixedly connected in the box body, the bottom of the box body at one end of the pH regulation mechanism is fixedly connected with a mixing mechanism, and the mixing mechanism comprises a mounting plate. A stepping motor is fixedly connected to the mounting plate, a gear and a rack are rotationally connected to the output end of the stepping motor through a coupler, one end of the rack slidably penetrates through the side wall of the box body and extends into the box body, and mixing plates are fixedly connected to the two sides of one end of the rack. The mixing mechanism is arranged, the rack is indirectly driven by the stepping motor to slide back and forth in the box body, the mixing plat