| 摘要 |
PURPOSE: A water pressure controlling connection pipe for a firefighting is provided to not only pursue the safety of a fire fighter through dispersion of an overpressure but also cutting off the fire fighting water in a real situation by the fire fighter when extending a fire fighting hose, thereby forming an extension of the fire fighting hose immediately. CONSTITUTION: A water pressure controlling connection pipe for a firefighting comprises followings: a nozzle body in which a hollow digestive fluid path is formed inside, a connecting bolt is formed in an outer side of top end part, a settling surface is formed inside the top end part, and a floating unit nut is formed inside a rear end; the floating unit in which the hollow digestive fluid path is formed inside, the floating unit bolt is formed in an outer side, a hanging projection is formed inside, and a connection nut is formed inside the rear end; a spindle(30) in which a first disk sheet contacting with the settling surface is formed, a spindle coupling bolt is formed outside the rear end, and an insertion hole is penetrated and formed in the hollow inside; a spindle coupling nut screw-coupled to the spindle coupling bolt in a status hanged in the hanging projection formed inside the floating unit; an overpressure preventing load(40) screw-coupled with the coupling nut; and a spring(60) for returning the overpressure preventing load into an original state. |
