Screw rod anti-tilting device used in case and tank installation by adopting cluster electric hoist upside-down mounting method

The utility model discloses a screw rod anti-tilting device used when a cluster electric hoist upside-down mounting method is adopted for tank installation, which comprises a base, a stand column, an upper rib plate, an upper supporting plate, a screw rod, a lower rib plate, a lower supporting plate and a base plate, the stand column is vertically and fixedly connected to the base, the upper rib plate is transversely and fixedly connected to the upper portion of the stand column, and the lower rib plate is transversely and fixedly connected to the lower portion of the stand column. A screw rod is vertically installed in the middle of the upper supporting plate above the upper rib plate, the lower portion of the screw rod is sequentially matched with a lower rib plate, a lower supporting plate and a base plate in a threaded mode, and the lower rib plate is connected with the tank expansion ring. According to the utility model, the safety and stability of the lifting process of the cluster electric hoist are ef