Novel hole safety protection device

The utility model discloses a novel hole safety protection device which comprises a frame body, a protection assembly and a connecting assembly, the protection assembly is fixed to the outer wall of one side of the frame body, and the connecting assembly is fixed to the inner wall of the other side of the frame body; the protection assembly comprises a splicing groove, a first guide hole, a protection plate, a limiting hole, a movable plate, a limiting rod and a first spring, the splicing groove is formed in the inner wall of one side of the frame body, the protection plate is installed on the inner wall of one side of the splicing groove, and the movable plates are fixedly connected to the outer walls of the two sides of the frame body. According to the utility model, the protective device is adopted, and during long-term use, the protective plate damaged by broken stones can be quickly replaced, so that the replacement efficiency is improved, and the protective effect is ensured; and the connecting devices