The utility model provides a kind of
drying furnace door lifting device after power failure, including lower support
assembly, motor fan connecting shaft disc, right-angle
commutator and
crank handle, the lower support
assembly includes horizontal support and several vertical legs, the longitudinal axis of the motor fan connecting shaft disc is through the middle part of the lower support
assembly, the bottom of shaft disc is distributed with the
power transmission shaft corresponding
fan blade gap, the right-angle
commutator is connected on the longitudinal axis upper end of the motor fan connecting shaft disc, and side surface is connected the
crank handle.The utility model drives
drying furnace door movement by the mode of rotating motor fan, avoids the
possible injury caused by lifting
drying furnace door by manpower when power failure;Operation is carried out in the position of furnace door lifting motor, far away from furnace door, avoids the possible scald caused by lifting drying furnace door by manpower;With unique structure and transmission mode, facilitate the installation and removal of the whole device.