| 摘要 |
PURPOSE:To facilitate the opening operation of the valve for the fireplug by a method wherein an inner tube, opening and closing a flow path in an outer tube, is inserted slidably into the tubular section of the outer tube changing the direction thereof while following a hose. CONSTITUTION:The valve 12 for the fireplug is consisting of the L-shaped outer tube 14 connected to a water feeding port 13 and the inner tube 16, a part of which is inserted slidably into the tubular section 15 of the outer tube 14, while the valve 12 is opened and closed sliding the inner tube 16. The valve 12 for the fireplug may be opened or closed by extending the hose 4 and thereafter pulling it to slide the inner tube 16 connected to the base of the hose 4. |
