Telescopic LED electronic display screen height limiting frame

A telescopic LED electronic display screen height limiting frame comprises two cement piers and a metal case, the top end of each cement pier is fixedly provided with a fixed square pipe, the top end of each fixed square pipe is provided with a lifting square pipe, each lifting square pipe is internally provided with an internal thread groove, each internal thread groove is internally provided with a reciprocating lead screw in a threaded mode, and the reciprocating lead screw is connected with the metal case. A motor is installed in each metal case, a suspension is jointly installed between the two lifting square pipes, two LED display screens are fixedly installed at the bottom end of the suspension, a camera is installed at the bottom end of the suspension, vehicle information is captured through the camera, when a heavy-duty truck is driven into the front of the height limiting frame, the heavy-duty truck is stopped, and the vehicle is prevented from being damaged. If the special vehicle runs to the front