Concrete truck cleaning device

The utility model discloses a concrete truck cleaning device which comprises a support, the upper end of the support is provided with an installation platform with one end inclining downwards, the upper end of the installation platform is provided with a sliding rail arranged in the inclining direction of the installation platform, the sliding rail is connected with a shear type telescopic frame in a sliding mode, and the shear type telescopic frame slides in the length direction of the sliding rail. A mounting base is arranged at the end, away from the downwards-inclined end, of the mounting platform, a driving motor used for driving the shear-type telescopic frame to stretch out and draw back is mounted on the mounting base, the lower end of the shear-type telescopic frame is slidably connected with the sliding rail, one end of the shear-type telescopic frame is rotationally connected with a supporting rod capable of sliding along with stretching out and drawing back of the shear-type telescopic frame, and