Portal frame for cast-in-place box girder construction hoisting

The utility model discloses a portal frame for cast-in-place box girder construction hoisting, which comprises a portal frame, a leveling scraper crossing the portal frame is arranged between side frames of the portal frame, square sliding sleeves sleeved on frame-shaped frames are fixed at two ends of the leveling scraper, and the two frame-shaped frames are symmetrically fixed at the front endsof the side frames of the portal frame. The upper portion of the leveling scraper plate is provided with a rotating shaft, and the two ends of the rotating shaft are rotatably connected with top supports of the frame-shaped frames on the two sides of the portal frame respectively, so that the adjustable leveling scraper plate is arranged on the side frame of the portal frame, and meanwhile the upper portion of the leveling scraper plate is wound with a plurality of covering films used for covering the top of the cast-in-place beam mold. The top of concrete in the cast-in-place beam mold can bequickly flattened, time a