Automatic balancing device for gas-driven balancing part

The invention relates to an automatic balancing device for a gas-driven balancing part, which comprises two bow and stern balancing devices, a guide rail and a balancing part, wherein the two bow and stern balancing devices are respectively positioned on two sides of a submersible; the bow and stern balancing device comprises a triggering cabin capable of pushing the balancing part to move, a push plate sliding after the balancing part collides with the triggering cabin is arranged on the triggering cabin, and a delay triggering device driving the triggering cabin to start and trigger is arranged on the sliding stroke of the push plate. The self-balancing device is compact and reasonable in structure and convenient to operate, by arranging the balancing piece capable of automatically moving on the guide rail along with inclination of the submersible, the balancing piece makes contact with the bow and stern balancing device at one end, so that a gunpowder cake in the bow and stern balancing device is triggered