Rotating device for portal frame display screen

The invention discloses a rotating device for a portal frame display screen. The rotating device comprises a portal frame body and a rotating support. The rotating support is connected with the portal frame body through a turning support. The rotating support rotates with the turning support as the axial line. The rotating device further comprises a screen installation frame. The screen installation frame is fixedly connected with the rotating support. The screen installation frame rotates together with the rotating support. The screen installation frame is fixed to one end of the rotating support, and the angle of the other end of the rotating support can be adjusted as needed. By adopting the rotating device for the portal frame display screen, it is ensured that personal safety of operating personnel is ensured, meanwhile, operating personnel can clean, maintain and replace the display screen more conveniently and rapidly, the time cost and the labor cost are reduced, working efficiency is improved, and the rotating device is suitable for large-scale usage and popularization.