In view of the current situation of difficult escape for people in danger of high-rise building fire,a triangular vertical folding outdoor escape device is designed based on TRIZ theory.The device takes the wall window frame as the carrier,and is hinged by the upper and lower fire escape ladder,which is driven by human and the self-weight of the ladder as the power source,retracted by the winch built-in steel cable and carried on by pulley group,so as to realize the integration with the wall and realize the reversible mechanism deformation of the abduction as the escape ladder.The four-bar lin...
