Water treatment water quality instrument sampling device based on PLC control

The utility model discloses a water treatment water quality instrument sampling device based on PLC control, which comprises a sampling pump, a sampling head arranged on the outer wall of one end of the sampling pump, a connecting frame arranged on the outer wall of the sampling head, a telescopic rod arranged on the outer wall of the connecting frame, a mounting plate arranged on the outer wall of the telescopic rod, a winding wheel arranged on the top of the mounting plate and movably connected with the connecting frame through a rope. Cavities are symmetrically formed in the outer wall of the connecting frame, water inlets are formed in the bottoms of the cavities, and sealing rings matched with the water inlets are arranged on the inner walls of the cavities. The underwater sampling device can conveniently and quickly control the depth of the sampling head entering water and ensure that the sampling device can sample water at different depths, the device needing to enter water does not contain electronic