Photovoltaic solar energy base are called photovoltaic or PV ground screw, fixing fences, fence, flagpole, signs, trailers are called anchors, nails, screw piles, to call. Solar frame ground screw is a screw characteristics of drilling stake into the ground, by merging with helical vanes are welded steel pipe, drill pipe and power source input to the top tube forming on the tip of the drill into the ground; Ground screw on the soil around the pile penetration, compaction, improved the side friction resistance of pile, has strong bearing capacity of pile, pullout