Sound insulation and noise reduction device for building construction

The utility model relates to a sound insulation and noise reduction device for building construction, which is characterized in that a winding roller and a sound insulation curtain are arranged between a main upright post and an auxiliary upright post, the sound insulation curtain is wound or released through a winding mechanism, and the winding mechanism comprises a first winding wheel, a second winding wheel, a transmission shaft, a winding rope, a worm gear and a worm; the first rolling wheel is fixedly sleeved on the rotating shaft; the transmission shaft is distributed below the rotating shaft and is parallel to the rotating shaft; the second rolling wheel is correspondingly arranged below the first rolling wheel and is fixedly sleeved on the transmission shaft; a traction rope is arranged between the first rolling wheel and the second rolling wheel; the worm gear is fixedly sleeved on the transmission shaft; the worm is rotationally arranged in the transmission cavity and meshed with the worm gear, and