Control arm assembly for high-altitude cleaning

The utility model discloses a control arm component for high-altitude cleaning, which comprises a cross arm, a support and a cleaning head, the cross arm is of a square tube structure, a matched telescopic rod is inserted into the front end of the cross arm, a plurality of spray heads are mounted on the front side of the cleaning head, the cross arm is movably connected with the support, a connecting rod is fixedly mounted on the back of the cleaning head, and the telescopic rod is hinged with an air cylinder. A piston rod of the air cylinder is hinged to the connecting rod to adjust the pitching angle of the cleaning head, an inner cavity of the cross arm is slidably connected with a matched sliding block, the middle of the sliding block is connected with the inner end of the telescopic rod through a spring, a motor is installed at the rear end of the cross arm, and a lead screw is installed at the output end of the motor through a coupler. An operator controls the cleaning head to move in a small range thro