The utility model relates to a self-powered
submarine material supply floating platform diving structure, and relates to the field of
floating platform diving. The device comprises a shell, a groove body is formed in the bottom of an inner cavity of the shell, a
water storage cavity is formed in an inner cavity of the groove body, a storage cavity is formed in the inner cavity of the shell, an
air pump is arranged at the bottom of an inner cavity of the storage cavity, a water pump is arranged in an inner cavity of the storage cavity, an inlet of the
air pump is communicated with a three-way pipeline, and a pipeline at the inlet of the
air pump penetrates through the groove body and is communicated with the
water storage cavity. By starting an air pump, the air pump pumps air in an inner cavity of a
water storage cavity and inputs the air into an inner cavity of a connecting
pipe, a water pump is started to pump water into the inner cavity of the water storage cavity, at the moment, the water in the inner cavity of the water storage cavity can increase the weight of a shell, the shell dives, a motor is started, and a lifting frame moves downwards; at the moment, the connecting
pipe conveys air to the periphery of the shell through the
exhaust pipe, so that the density of water around the shell is reduced, and the submerging speed of the shell is increased.