The utility model discloses an
LED display screen installing and fixing structure which comprises an installing frame, a shell is fixedly installed on the surface of the installing frame, a hand
crank is movably connected to the right side of the shell, a right-hand
threaded rod is fixedly connected to the left side of the hand
crank, and the left side of the right-hand
threaded rod penetrates into an inner cavity of the shell to be in threaded connection with a threaded sleeve. A supporting column is fixedly connected to the surface of the threaded sleeve, a fixing plate is fixedly connected to the surface of the supporting column, a mounting shell is fixedly mounted on the surface of the fixing plate, and a mounting plate is inserted into an inner cavity of the mounting shell. By adding the hand
crank, the forward and reverse
threaded rod can be conveniently driven to rotate, so that the forward and reverse threaded rod drives the threaded sleeve to move towards the inner side, the mounting shell can be effectively driven to move, the display screen body can be conveniently inserted, and the device can be suitable for mounting display screen bodies of different models and sizes; therefore, the mounting efficiency of the display screen body is improved, and meanwhile, the mounting trouble of workers is also solved.