The application relates to a fireproof roller
shutter door with an emergency falling mechanism and belongs to the field of roller
shutter doors. The fireproof roller
shutter door comprises a function bin arranged on a door frame, guide rails symmetrically arranged on two sides of the door frame, a roller drum rotationally connected in the function bin, and a roller shutter body with an inner end wound on the roller drum. The outer end of the roller shutter body is arranged on the corresponding guide rail in a sliding mode. A water outlet
pipe is arranged on the function bin, a water outlet is arranged on the water outlet
pipe, water discharged from the water outlet forms a
water curtain in front of the door frame, a drain
pipe is arranged on the ground and located directly below the water outlet, a
smoke sensing
control unit is arranged on the function bin, the
smoke sensing
control unit controls the roller drum to rotate and make the roller shutter body fall to the bottom, a dispersing opening is arranged on the roller shutter body, and a dispersing door is arranged on the roller shutter body and covers the dispersing opening. The
water curtain forms a
water curtain in front of the door frame to block
smoke, thereby reducing the leakage of toxic smoke into the escape passage during personnel escape, and the smoke blocking effect is improved.