Patent ID: 6520480
Filing Date: 2003-02-18
Classification: F16L

Abstract:
A plug connection for a conduit used in conveying a fluid, comprising:a cylindrical receptacle housing, wherein one end of said housing is attached to the conduit and an other end of the housing is open; a tubular plug-in part, wherein an end of said tubular plug-in part is insertable into the opening in the other end of the housing and an other end of said plug-in part is attached to another conduit; a longitudinally displaceable valve body disposed within a central flow-through chamber of the receptacle housing, wherein said valve body is in a closed position to seal the flow-through chamber when said tubular plug-in part is disconnected from said receptacle housing; a sleeve forming said valve body and having a conically shaped end wall on an end of said sleeve facing away from the inserting opening of the receptacle housing, wherein an interior portion of said sleeve includes a radially extending rib; a coil spring disposed in the housing, wherein said valve body is longitudinally displaced by said spring to an open position when said tubular plug-in part is inserted into said receptacle housing; at least one ring seal for sealing an annular gap between the receptacle housing and said tubular plug-in part, after said tubular plug-in part is inserted into said receptacle housing; and an axial rib extending therealong an exterior circumference of a rear portion of said end wall, wherein said rib is engaged within a corresponding longitudinal groove in an inner wall of the receptacle housing when said tubular plug-in part is inserted into said receptacle housing.