Sedan -chair elevator that can flee by oneself

The utility model discloses a sedan -chair elevator that can flee by oneself, it is including towing host computer, main frame, car, host computer band -type brake, be located the rolling gear who tows the host computer side, the operation window that saves oneself who locates the car lateral wall, tow the boss rod that the host computer was equipped with the installation driving sheave, rolling gear include with the boss rod spline in step barring gear, the worm wheel that has intermeshing and the worm connected the contrary drive assembly of ending, with the worm wheel spline in step connect and can be with barring gear engagement's drive gear, order about the worm and rotate and hang barring rope in the operation window that saves oneself outside, order about drive gear with barring gear engagement and the clutch that messenger's host computer band -type brake was opened after hanging separation and reunion wire rope, drive gear and the barring gear engagement outside the operation window that saves onesel