Truss type spraying device

The utility model provides a truss type spraying device. The truss type spraying device comprises two side supporting frames. A top supporting frame is arranged at the tops of the two side supporting frames, an upper sliding rail is arranged on the top supporting frame, a main sliding block component sliding along the upper sliding rail is arranged on the upper sliding rail, a telescopic motor is connected to the bottom of the main sliding block component, and the bottom of the telescopic motor is connected with a spraying head through an adjusting rotating shaft; the inner end faces of the two side supporting frames are connected through a roller conveying belt, and the roller conveying belt is located below the spraying head. The spraying device further comprises a spraying material storage cavity, and the spraying head communicates with the spraying material storage cavity through a spiral telescopic pipe. By arranging the top supporting frame, the side supporting frame, the upper sliding rail, the rubber