Abstract: A parking device for a motorized self-balancing wheelchair, connected to a wheelchair base by a pair of leverages is disclosed. Each of the leverages is connected by a proximal lever, to a shared gear driven by a gearmotor assembly that in turn is keyed, or constrained, to one of the leverages. Each proximal lever is articulated to a distal lever and each distal lever is connected by a guide to the base of the wheelchair and has a supporting foot to be supported on the ground. The shared gear has a pair of cogwheels meshing with one another and each of the cogwheels is integral to a proximal lever of the couple of leverages and has its own rotation axis, so that the operation of the gearmotor assembly puts the pair of cogwheels in simultaneous rotation to drive the leverages up or down.