Punching-free cantilever I-shaped steel reinforcing device

The utility model relates to the technical field of scaffold building, in particular to a punching-free cantilever I-shaped steel reinforcing device, which is characterized in that a clamping part is arranged into a U-shaped structure and is combined by adopting a propping component, so that the U-shaped structure can be propped against and fixed on a floor slab, I-shaped steel is arranged on a connecting plate to form a cantilever beam, and an inclined strut component and a tensioning component are combined, so that the punching-free cantilever I-shaped steel reinforcing device is formed. The I-shaped steel can be stably in a horizontal state, the purpose of erecting the scaffold on the I-shaped steel is achieved, the defects that the structural strength of a floor slab is weakened and the waterproof performance of the floor slab is poor due to the fact that the I-shaped steel is installed through punching on the floor slab are overcome, the mode of direct abutting installation of the abutting assemblies is