Waterproof electromagnetic valve knob

The utility model provides a waterproof electromagnetic valve knob, which belongs to the technical field of electromagnetic valves and comprises a shell, a knob body and a knob body. A stud is upwards arranged in the middle of the rotating groove; a hollow rotating column is vertically arranged in the middle of the bottom end of the knob body, and the stud is sleeved with the bottom end of the rotating column; the self-tapping bolt penetrates through the rotary column from the upper part of the knob body from top to bottom and is rotationally connected with the stud; the knob body rotates through the tap bolt; the spring is arranged on the rotary column in a sleeving manner; the gear identification layer is arranged at the top end of the knob body and covers the tap bolt; the magnet is arranged at the bottom end of the knob body and located on the edge of the rotary column; and the six reed pipes are annularly arranged below the rotating groove and are matched with the magnets. The electromagnetic valve has t