Safety early warning device for underneath pass railway bridge road construction

The utility model relates to the technical field of road construction. The invention relates to an early warning device, in particular to an underneath pass railway bridge road construction safety early warning device. Including a housing, the bottom of the shell is connected to a supporting plate through a supporting frame. The bottom of the supporting plate is connected with a walking mechanism.The first roller body and the second roller body are in transmission connection through a belt, the top of the shell is connected with a photovoltaic power generation panel assembly through a supporting column, the photovoltaic power generation panel assembly is electrically connected to a storage battery assembly through a frequency converter body, and a plurality of sets of LED lamps are further installed at the top in the shell. Solar power generation principle, solar energy is converted into electric energy, environmental protection is better achieved, the propaganda warning slogan belt is pasted to the belt, ear