Bottom support device for concrete pouring of pipe pile reinforcement cage

The utility model discloses a cork base device for concrete pouring of a pipe pile reinforcement cage. The cork base device comprises a supporting plate assembly. The supporting plate assembly comprises a steel bottom plate, a plurality of connecting steel bars are arranged on the top face of the bottom plate, the bottom ends of the connecting steel bars are welded to the top face of the bottom plate, positioning cylinders are welded to the top ends of the connecting steel bars, and rubber sleeves used for being connected with pipe pile reinforcement cage main bars are embedded in the positioning cylinders. The leakage-proof rubber ring assembly comprises a rubber ring. The rubber rings sleeve the connecting steel bars and are fixed to the top face of the bottom plate. A plurality of conical rod assemblies are installed on the bottom face of the rubber ring extending out of the bottom plate and the bottom face of the bottom plate in the radial direction of the bottom plate. The cone rod assembly is extruded b