Photovoltaic engineering mounting rack with automatic cleaning function

A photovoltaic engineering mounting rack with an automatic cleaning function is characterized in that sliding rails are welded to the outer wall of one end of a mounting plate, a sliding plate is clamped to the upper ends of the sliding rails, first motors are fixedly mounted on the outer wall of one end of the sliding plate, the first motors are positive and negative rotation motors, and the output ends of the first motors penetrate through the sliding plate and are rotationally connected with first pulleys; the inner wall of the side, close to the first pulley, of the sliding plate is fixedly connected with a second pulley, and the upper side of the end, close to the first motor, of the sliding plate is welded with a U-shaped plate. By starting a first motor, a second motor and a spray head, the first motor drives a first pulley to rotate, the first pulley drives a sliding plate to move on a sliding rail, the second motor drives a brush plate to rotate, and the brush plate makes contact with a photovoltaic