What are the methods of making elevator protective doors?

In the construction project, in the construction stage of the main structure of the construction site, the elevator hole should be protected before the elevator installation. Conventional practice is to carry out safety protection after concrete pouring is completed and formwork is removed. The general protection method is to build steel pipes or weld steel bars and square pipes into doors for protection, and most of them are fixed with shear walls by implanting expansion screws and then welding, which will not only harm the structural quality of shear walls themselves, but also cause economic losses. In order to overcome the above difficulties, the utility model puts forward an elevator protective door fixing device which is simple to manufacture, reusable and will not damage the wall. The technical scheme of the utility model is realized as follows: an elevator protective door fixing device comprises an L-shaped fixing piece for positioning the protective door on the elevator entrance wall to form an elevator entrance, wherein the fixing piece comprises a first rod body and a second rod body, and the first rod body is vertically and fixedly connected with the second rod body; The first rod passes through the protective door and is located at the inner side of the elevator entrance wall through the baffle, and the baffle slides through the first rod and is connected with the first rod.