| 摘要 |
PURPOSE:To secure the airtightness in a storage battery, facilitate the fitting and removal, end reduce leakage by arranging a pressure difference securing valve opened when the pressure at the discharge side becomes higher than the pressure at the feed side by the fixed value or more on a liquid injecting path and providing the opening of a discharge path at the desired depth of liquid injection. CONSTITUTION:With a decompression mechanism 9 operated, when a liquid injecting nozzle 1 is fitted to a liquid injecting port B, the gas in a storage battery is sucked via a discharge path 3, the storage battery 3 becomes the decompressed state, an elastic material 5 is closely stuck to a battery jar cover A, and the liquid injecting nozzle 1 is firmly fixed to the battery jar cover A. When the storage battery 3 is decompressed to the fixed value or more, a pressure difference securing valve 6 is opened, and a liquid is injected into the storage battery 3 from a tank 8 via a liquid injecting path 2. When the liquid level of an electrolyte C reaches the opening 7, the electrolyte is sucked through the discharge path 3, and the liquid level does not rise any more. When the liquid injecting port B is removed from the liquid injecting nozzle 1, the pressure difference securing valve 6 is closed, thereby the liquid is not leaked through the liquid injecting path 2. |
