Mechanical fire-fighting triggering device of single battery and energy storage battery system

The utility model relates to the technical field of batteries, in particular to a mechanical fire-fighting triggering device of a single battery and an energy storage battery system. The device comprises a spraying head and a puncturing assembly, wherein the puncturing assembly is arranged in the spraying head; a water pipe fixing opening and a spraying opening are formed in the spraying head, a cavity is formed in the spraying head, the water pipe fixing opening and the spraying opening are both communicated with the cavity, and a sealing piece fixedly connected with the water pipe fixing opening is arranged in the water pipe fixing opening; the puncturing assembly comprises a conical shell, the conical shell is arranged in the spraying head, the conical tip of the conical shell right faces the sealing piece, and the sealing piece can be punctured through relative movement of the conical shell and the sealing piece. When the fire-fighting pipeline is in thermal runaway and is communicated with water, accurat