Method for preventing furnace door of heating furnace from falling

The invention belongs to the technical field of heating furnaces, and particularly relates to a heating furnace door anti-falling method which comprises a fixing frame, a lifting mechanism is arranged on the left side of the fixing frame, a locking mechanism is arranged on the right side of the fixing frame, and an adjusting mechanism is arranged at the bottom of the fixing frame. According to the method for preventing the furnace door of the heating furnace from falling, through the arranged lifting mechanism, the furnace door lifting chain lock hole device moves along with the furnace door to rise and fall, the furnace door can be automatically lifted, manual operation is replaced by electric operation, labor force is reduced, and time, labor and labor are saved; the mortise lock is inserted into the furnace door lifting chain lock hole device through the furnace door anti-falling mortise lock device, physical locking and mechanical self-locking are achieved, the effect of safely positioning the furnace doo