Temporary support pier device for cantilever assembly construction

The utility model relates to the field of building construction equipment, in particular to a temporary supporting pier device used in cantilever assembly construction. The device comprises a steel pipe stand column, a sealing plate is arranged at the top of the steel pipe stand column, a pier top cross beam is arranged on the sealing plate, and a hydraulic jack is arranged at the top of the pier top cross beam; a supporting part of the hydraulic jack is provided with a wedge-shaped steel plate, and the top of the wedge-shaped steel plate supports a steel box girder bottom plate. According to the temporary supporting pier device used in cantilever splicing construction, through cooperation of the steel pipe stand column, the sealing plate, the pier top cross beam, the hydraulic jack, the wedge-shaped steel plate, the steel box girder bottom plate and the like, when the temporary supporting pier device is used, the hydraulic jack is fixed to the pier top cross beam, the hydraulic jack exerts acting force on th