Broken bridge window structure capable of improving sound insulation and noise reduction effects

The utility model relates to the technical field of bridge-cut-off doors and windows, in particular to a bridge-cut-off window structure capable of improving sound insulation and noise reduction effects, which comprises a window frame, a screen window and a bridge-cut-off window, the screen window and the bridge-cut-off window are rotatably connected with the window frame through hinges, two groups of heat insulation strips are arranged in the window frame, and heat insulation and sound insulation cotton is arranged between the two groups of heat insulation strips. The left side and the right side of the heat insulation strip are each provided with an inner sealing strip, the inner side, close to the broken bridge window, of the window frame is provided with an outer sealing strip and an anti-collision strip, and the inner side, close to the screen window, of the broken bridge window is provided with a screen window sealing strip. According to the broken bridge window structure, the overall sealing performanc