The invention relates to a manpower-driven
liquid metal generating device based on an air bag, which comprises a pair of permanent magnets with reverse magnetic polarities, a
liquid storage tank and the air bag, wherein the
liquid storage tank is clamped between the permanent magnets and is filled with
liquid metal; the air bag is located on a lower part in the
liquid storage tank; an air
inlet valve and an air outlet valve are respectively mounted at an air inlet and an air outlet of the air bag; the air let and the air outlet are formed on two opposite side walls of the air bag; a
limiter is arranged at an opening of a cavity of the
liquid storage tank; a foot-treading inflator is communicated with the air
inlet valve; a pair of poles is tightly clung to and mounted on inner walls of the
liquid storage tank on the side of the air inlet and the air outlet; the bottom of the poles is tightly clung to a part above the air inlet and the air outlet of the
liquid storage tank; and the other ends of the poles extend out of the cavity of the liquid
storage tank. Under the driving of manpower, the air bag inhales and deforms upward along the cavity of the liquid
storage tank; under an effect of the deformation, the
liquid metal flows upward along an inner wall of the cavity of the liquid
storage tank; the
magnetic line of force is
cut during the flowing process of the liquid
metal, thereby generating
electric power; when the air bag restores from the deformation, the liquid
metal flows reversely under an action of gravity so as to
cut the
magnetic line of force again, thereby generating
electric power; and the generated
electric power is exported by the pair of poles and is standby.