Mounting and fixing structure of channel traffic signal lamp

The utility model relates to a mounting and fixing structure of a channel traffic signal lamp, which comprises a rectangular fixing frame with vertical long edges, an upper screen and a lower screen are sequentially connected in the fixing frame from top to bottom, and the upper screen and the lower screen are coplanar and are in up-and-down butt joint to cooperatively display a complete traffic signal mark pattern; sliding block assemblies are arranged between the two sides of the upper screen and the fixing frame so that the upper screen can vertically slide in the fixing frame. The lower screen is detachably connected in the fixed frame so as to avoid downward sliding of the upper screen; the sliding block assembly at least extends to the position below the middle of the lower screen, and after the lower screen is detached for receding, the upper screen slides downwards, so that the height is reduced for maintenance. Through the split screen design, the manufacturing cost can be reduced, the lower screen c