Operating switch of table-controlled drainer

A bench-controlled drainer operation switch is characterized in that the bench-controlled drainer operation switch comprises a guide cylinder, the interior of the guide cylinder is hollow, a movable groove is formed in the guide cylinder, a rotating rod and a push rod are embedded in the movable groove, and the lower end of the push rod is connected with a drainer through a drive-by-wire traction mechanism; a spiral groove is formed in the inner column face of the lower end of the rotating rod in an inward-concave mode, a spiral boss is arranged on the outer column face of the upper end of the push rod in an outward-protruding mode, and the spiral boss and the spiral groove are assembled in a matched mode. A control knob is installed above the rotating rod, a protruding positioning boss below the control knob extends into and is clamped in a positioning groove formed in the upper end of the rotating rod, the control knob is rotated, the push rod is pushed to stretch out and draw back through rotation of the r