Abstract: A removable plug-in connection for high-pressure lines, in particular brake lines in the construction of motor vehicles. The connection includes a cylindrical receiving housing (1) with a central receiving chamber (2), in addition to a tubular plug-in part, which is equipped with a peripheral retaining rib. An insertion side of the receiving housing (1) has an enlarged receiving chamber (2) in which several radially guided locking elements (5) can be retained, the elements being clamped in a direction of the interior by a retaining ring (14). The locking elements (5) include two half-shells (8) that include retainer wedges (18) that point inwards, engaging behind the retaining rib (4) in a positive fit once the plug-in part (3) has been inserted. Each half-shell (8) has a projecting centering pin on one end face, the pin constituting an extension of the internal wall and engaging in a corresponding cavity on the opposing end face when the two half-shells (8) are assembled.

Abstract: The detachable plug coupling operative to connect fluid lines, particularly fuel lines of motor vehicles. The plug coupling includes a tubular insertion part with an encircling retaining rib and a coupling housing having a cylindrical accommodating space for the insertion part. The plug coupling also has an enlarged head part with a separate retaining element, having elastically opening retaining edges. The retaining edges are radially directed into the accommodating space and engage behind the retaining rib after the insertion part has been pushed in. In order to ensure that the retaining rib is correctly snapped in behind the retaining edges after the insertion part has been inserted, an additional locking element is provided, which is guided in a transversally displaceable manner on the housing head between an opening position and a closing position.

Abstract: The detachable plug coupling serves to connect liquid lines, particularly fuel lines of motor vehicles. The plug coupling is provides a tubular insertion part (3) with an encircling remaining rib (4) and a coupling housing (1) with a cylindrical accommodating space (2) for the insertion part (3). The plug coupling also has an enlarged head part (6) with a separate retaining element (7), which is provided with elastically opening retaining edges (10). The retaining edges are radially directed into the accommodating space (2) and engage behind the retaining rib (4) after the insertion part (3) has been pushed in. In order to ensure that the retaining rib (4) is correctly snapped in behind the retaining edges (10) after the insertion part (3) has been inserted, an additional locking element (17) is provided, which is guided in a transversally displaceable manner on the housing head (6) between an opening position and a closing position.

Abstract: The invention relates to a removable plug-in connection for high-pressure lines, in particular brake lines in the construction of motor vehicles. Said connection comprises a cylindrical receiving housing (1) with a central receiving chamber (2), in addition to a tubular plug-in part, which is equipped with a peripheral retaining rib. The insertion side of the receiving housing (1) has an enlarged receiving chamber (2) in which several radially guided locking elements (5) can be embedded, said elements being clamped in the direction of the interior by a retaining ring (14). The locking elements (5) consist of two half-shells (8) comprising retainer wedges (18) that point inwards, engaging behind the retaining rib (4) in a positive fit once the plug-in part (3) has been inserted. Each half-shell (8) has a projecting centring pin on one end face, said pin constituting an extension of the internal wall and engaging in a corresponding cavity on the opposing end face when the two half-shells (8) are assembled.

Abstract: A separable rapid-action coupling serves for connecting fluid lines includes a tubular plug-in part with a circumferential holding rib, a coupling housing with a cylindrical receptacle cavity for the plug-in part and a separate holding element. The holding element has elastically expandable holding edges that are radially directed into the receptacle cavity. The holding edges engage behind the holding rib after insertion of the plug-in part. A safety clip with a second locking mechanism is situated in front of the plug-in opening of the housing in case the snap-in mechanism of the holding element fails. The safety clip includes a frame that fits on the end face of the coupling housing and two elastically expandable clips that engage corresponding projections on the coupling housing. The safety clip has snap-in fingers that can be inserted into the receptacle cavity.

Abstract: The releasable plug coupling is used for connecting fluid lines, particularly, fuel lines of motor vehicles. The plug coupling comprises a tubular plug-in part (3) with an annular retaining lip (4) as well as a coupling housing (1) with a cylindrical receiving space (2) for inserting the plug-in part (3) and a separate retaining element (7) with elastic retaining edges (11) that project radially into the receiving space (2) and that grip behind the retaining lip (4) after the plug-in part (3) is inserted into the receiving space (2). The retaining edges (11) are attached to support bodies (12) that are connected at their ends by elastic connecting pieces (14) that form a V to pressure plates (15). These plates extend outwards through corresponding openings (16) in the housing wall (17) and are pressed together from the outside for releasing the coupling.

Abstract: A detachable coupling includes a housing having wall, an end that has an inner wall, and a receiving space that has an opening in the end. The opening and the receiving space receives a tubular insertion part that has a retaining rib. An indicating part is removably mounted to the end of the receiving housing and includes a support ring and a lever. The lever has a free end and a inner end and is pivotally mounted to the support ring and extends into the receiving space. A support projection is positioned on the inner end of the lever and contacts the inner wall. Insertion of the tubular insertion part causes the retaining rib to contact the free end of the lever and results in the pivoting of the lever. Pivoting of the lever disengages the support projection from the inner wall and dismounts the indicating part from the housing.

Abstract: A plug connection with an automatically actuated outlet shut-off includes a cylindrical receptacle housing with an opening for inserting a tubular plug-in part that is provided with a circumferential holding rib which can be engaged in a locking element arranged in the inserting region of the receptacle housing. Ring seals for sealing the annular gap between the inner wall of the receptacle housing and the inserted plug-in part are also arranged in the receptacle housing. A valve body is provided in the flow-through chamber of the receptacle housing, wherein the valve body automatically seals the flow-through chamber and is pressed into the open position away from the end face of the plug-in part against the force of a coil spring when the plug-in part is inserted. The valve body is in the form of a sleeve that is closed by an end wall on its end that faces away from the inserting opening and penetrated by a radial rib.

Abstract: The releasable plug coupling is used for connecting fluid lines, particularly fuel lines of motor vehicles. The plug coupling comprises a tubular plug-in part (3) with an annular retaining lip (4) as well as a coupling housing (1) with a cylindrical receiving space (2) for inserting the plug-in part (3) and a separate retaining element (7) with elastic retaining edges (11) that project radially into the receiving space (2) and that grip behind the retaining lip (4) after the plug-in part (3) is inserted into the receiving space (2). The retaining edges (11) are attached to support bodies (12) that are connected at their ends by elastic connecting pieces (14) that form a V to pressure plates (15). These plates extend outwards through corresponding openings (16) in the housing wall (17) and are pressed together from the outside for releasing the coupling.

Abstract: The invention relates to a detachable plug-and-socket connector for high pressure lines, particularly for brake lines in the manufacture of motor vehicles, where the plug-and-socket connector must have an especially high retaining force. The connector includes a plug-in part that has an annular retaining flange on its insertion side and is provided with a circular recess into which the end of a brake line tube can be pressed by deformable expansion of the tube wall and that the retaining spring is provided with a simple central clamping ring which can be slipped over the tubular connecting piece of the plug-in part immediately next to the retaining flange.

Abstract: The separable rapid-action coupling serves for connecting fluid lines, in particular, fuel lines in the manufacture of automobiles. This coupling consists of a tubular plug-in part (3) with a circumferential holding rib (4), a coupling housing (1) with a cylindrical receptacle cavity (6) for the plug-in part (3) and a separate holding element (2) with elastically expandable holding edges (5) that are radially directed into the receptacle cavity (6), with said holding edges engaging behind the holding rib (4) after the insertion of the plug-in part (3). A safety clip (9) with a second locking mechanism is situated in front of the plug-in opening (8) of the housing (1) in case the snap-in mechanism of the holding element (2) fails. The safety clip (9) consists of a frame (11) that is adapted to the end face (10) of the coupling housing (1) and can be engaged on corresponding projections (13) of the coupling housing (1) by means of two elastically expandable clips (12).

Abstract: A plug connection with an automatically actuated outlet shut-off includes a cylindrical receptacle housing with an opening for inserting a tubular plug-in part that is provided with a circumferential holding rib which can be engaged in a locking element arranged in the inserting region of the receptacle housing. Ring seals for sealing the annular gap between the inner wall of the receptacle housing and the inserted plug-in part are also arranged in the receptacle housing. A valve body is provided in the flow-through chamber of the receptacle housing, wherein the valve body automatically seals the flow-through chamber and is pressed into the open position away from the end face of the plug-in part against the force of a coil spring when the plug-in part is inserted. The valve body is in the form of a sleeve that is closed by an end wall on its end that faces away from the inserting opening and penetrated by a radial rib.