Splicing structure of high-density piano plate

The utility model discloses a splicing structure of a high-density piano board, which comprises a first wood board, a detachable second wood board is arranged on the first wood board, the first wood board and the second wood board are respectively provided with two rectangular grooves, the side wall of each rectangular groove is provided with two wedge-shaped grooves, and the first wood board and the second wood board are respectively provided with one wedge-shaped groove. A square block in sliding connection with the first wood board and a rectangular groove in the second wood board is jointly arranged in the rectangular groove in the first wood board and the rectangular groove in the second wood board, four sliding grooves are formed in the side face of the square block, fixing mechanisms are arranged between the sliding grooves and the wedge-shaped grooves, a vertical groove is formed in the bottom face of the square block, and a vertical rod is in sliding connection with the interior of the vertical groov