Portable lifting appliance spin lock replacing device

The utility model discloses a portable lifting appliance spin lock replacing device which comprises a support, a fixed box body, a lifting toothed bar, a lifting mechanism, a positioning mechanism and a lifting platform. The portable lifting appliance spin lock replacing device is provided with a support, universal wheels, a fixed box body, a limiting seat, a lifting toothed bar, a lifting mechanism, a lifting platform and an embedded groove, so that the portable lifting appliance spin lock replacing device can be conveniently moved through the universal wheels, and the whole device can be stably supported by matching with the support so as to improve the stability; by adjusting the lifting mechanism, the lifting toothed bar can be driven to ascend and descend in the limiting seat, the lifting platform is driven to ascend and descend, positioning of the spin lock through an embedded groove in the lifting platform is matched, and stable supporting and positioning of the spin lock in the mounting and dismountin