Building pile structure

The utility model relates to a building pile structure which comprises a pile cylinder, a square hole is formed in the inner wall of the pile cylinder, a plurality of through holes are formed in the outer wall of the pile cylinder and communicated with the square hole, and connecting springs are fixedly arranged in the square hole and located at the outer ends of the through holes. The other end of each connecting spring is fixedly provided with a top block, the inner wall of each top block is fixedly provided with an insertion rod, the other end of each insertion rod is located in the corresponding through hole, the upper end face of the pile cylinder is fixedly provided with a bearing platform, the upper end face of the bearing platform is provided with a threaded hole, and a threaded rod is arranged in the threaded hole; a user can rotate a threaded rod through a hand wheel, so that a pressing rod moves downwards, then a first conical surface is in contact with a second conical surface on a top block in se