Building engineering sound insulation device

The utility model provides a building engineering sound insulation device which comprises a sound insulation board, one end of the sound insulation board is fixedly connected with an insertion block, and the other end of the sound insulation board is provided with an insertion groove matched with the insertion block. Two strip-shaped holes are formed in the front side of the inserting block in the vertical direction at intervals, a limiting rod is connected into each strip-shaped hole through an elastic mechanism, and the free end of each limiting rod movably extends out of the corresponding strip-shaped hole; limiting grooves in one-to-one correspondence with the limiting rods are formed in the positions, corresponding to the front sides of the inserting grooves, of the sound insulation plate, and each limiting groove is in an L shape. The sound insulation board assembly and disassembly device is compact in structure, reasonable in design, capable of rapidly assembling and disassembling the sound insulation