Abstract: A device for sealingly linking two end pieces (24) of a fluid line system, comprises a casing part (1) and an inner part (13). The inner part (13) is arranged in a prefabricated arrangement within the casing part (1) in an axially displaceable manner and serves to fixate a sealing unit (21) that is detachably linked with the inner part (13) until an end piece (25) is inserted into the casing part (1) via an introduction area (3) and comes into contact with the inner part (13). When the end piece (25) is inserted, the inner part (13) is axially expelled from the casing part (1), whereby the sealing unit (21) is inhibited in its axial movement by an abutment (12) and remains within the casing part (1). The two end pieces can be sealingly linked while indicating the relative position of the end piece (25) coming into contact with the inner part (13) without requiring a separate handling of the sealing unit (21).

Abstract: A locking element for a quick connector is provided with a matable element releasably connectable to a receiving element of the quick connector. An actuating element is in engagement with the matable element and is mounted within the matable element such that it is displaceable between a released position and a locked position. The actuating element includes a locking device that can be brought into engagement with a retaining ring on an insertable element of the quick connector in an arrangement wherein the locking device is mated with the receiving element in the locked position. Secure attachment of the locking element to the quick connector and ease of use are thereby achieved.

Abstract: The invention relates to a coupling comprising a receiving part (1) and a fixing part (10), which have a blocking assembly (15, 16, 17). If the insertion part has not been introduced into the receiving part (1) correctly, elements (15, 16, 17) of the blocking assembly that are configured on the receiving part (1) and on the fixing part (10) engage with one another in such a way that the fixing part (10) is prevented from being retracted from the extended position. Arms (11, 12) of the fixing part (10) are configured in such a way that when a retaining ring of the insertion part is positioned in the vicinity of said arms (11, 12), the engagement of the elements (15, 16, 17) of the blocking assembly is released and the fixing part (10) can be displaced into the retracted position to engage behind the retaining ring by means of the retraction section. This permits an efficient mounting operation.

Abstract: The invention relates to a coupling for a fluid line arrangement, said coupling being characterised in that a plane outer side (8) of at least one essentially D-shaped sealing ring (7) of a sealing unit is applied to a plane supporting layer (10) of a receiving section (3) of a coupling part (1). In this way, in addition to a high twist rigidity of the sealing ring (7) in question, a very effective sealing action is achieved, even in the presence of comparatively weak radial pressure forces.

Abstract: The invention relates to a coupling comprising a receiving part (2) and a fixing part (1) which can be introduced into the receiving part (2), which comprises at least one rear snap-on piece (6) enabling an insertion part (15) to be connected to the receiving part (2) by rear catching a retaining ring (17). The fixing part (1) comprises an annular sleeve (4), wherein each rear snap-on piece (6) and at least one blocking piece (8) are attached by means of a flexible strip (5, 7). After inserting the insertion part (15), each blocking piece (8) is blocked in a radial manner in the inward direction by the insertion part (15) in the movement of the spring by the insertion part (15), such that it is opposite the stop wall (29) of an abutment wall (30). Each rear snap-on piece (6) is covered by a cover wall (27) such that access from the outside to each blocking piece (8) is prevented.

Abstract: A coupling has a locating part (1) into which a plug-in part can be inserted, and a locking part (7) which, after insertion of the plug-in part, can be moved from a projecting prefitting position into a pushed-in locking position. There is a control part (12) which has a C-shaped basic body formed with side legs (13, 14) and encloses, in the prefitting position of the locking part (7), a section (16) of the locating part (1). The control part (12) comprises a stop section (18), which, in the prefitting position of the locking part (7), bears in a stop position against the locking part (7) and which, in the locking position of the locking part (7), is disengaged from the locking part (7), wherein the control part (12), in the locking position of the locking part (7) can be displaced in the axial direction from the stop position into a removal position, in which it can be removed from the locating part (1).

Abstract: A coupling comprising a receiving part (1), a securing part (9) and an insertion part (17) includes blocking elements (6, 13?) whose engagement preventing the securing part (9) from moving from an extended position into a retracted position is released by the axial displacement of latching arms (13) of the securing part (9) of said insertion part (17), such that when the insertion part (17) is properly arranged in a receiving space (16) of the receiving part (1), the securing part (9) can be shifted into the retracted position in which said insertion part (17) is secured. What is achieved in this way is relatively simple modification of the assembly force through design measures, high wear resistance, and simple and operationally reliable manipulation of the inventive coupling with regard to the release of the connection between the receiving part and the insertion part, especially under confined spatial conditions.

Abstract: A locking element (10) for a quick connector is provided with a matable element (11) on which are configured means for effecting a snap connection (18, 19) with a receiving element of a quick connector, and an actuating element (15) that is in engagement with the matable element (11) and is mounted in the matable element (11) such that it is displaceable between a released position and a locked position. The actuating element (15) comprises locking means (22, 23, 25, 26) that can be brought into engagement with a retaining ring configured on an insertable element of the quick connector in an arrangement of the locking element (10) wherein it is mated onto a receiving element in the locked position. Secure attachment of the locking element (10) to the quick connector and ease of use are thereby achieved.

Abstract: A coupling for a fluid conducting system comprises an elongated coupling part (1) and a locking part (20), which can be displaced in a direction perpendicular to the longitudinal direction and which can be mounted on the coupling part (1) in a manner that enables it to slide. The guiding of the locking part (20) ensues via detent elements (24, 25) that engage inside guide recesses (13) of the coupling part (1). The locking part (20) can be fixed in a releasing position or in a locking position by the engagement of detent projections (26, 27) inside releasing recesses (18, 19) or inside locking recesses (16, 17). This enables a relatively problem-free operating of the coupling during opening and closing.

Abstract: The invention relates to a coupling comprising a receiving part (1) and a fixing part (10), which have a blocking assembly (15, 16, 17). If the insertion part has not been introduced into the receiving part (1) correctly, elements (15, 16, 17) of the blocking assembly that are configured on the receiving part (1) and on the fixing part (10) engage with one another in such a way that the fixing part (10) is prevented from being retracted from the extended position. Arms (11, 12) of the fixing part (10) are configured in such a way that when a retaining ring of the insertion part is positioned in the vicinity of said arms (11, 12), the engagement of the elements (15, 16, 17) of the blocking assembly is released and the fixing part (10) can be displaced into the retracted position to engage behind the retaining ring by means of the retraction section. This permits an efficient mounting operation.

Abstract: A coupling having a receiver (1), for receiving an insert (3) formed with a retaining ring (2), and a locking element (10) having two arms (11, 12) and a retaining portion (14). The locking element (10) fits into a receiving space (7) of the receiver (1) and is movable between a raised and a pushed-in position. A lifting bevel (16) is formed on the locking element (10) and cooperates with the retaining ring (2) of the insert (3) so that the locking element (10) can be moved from the pushed-in position to the raised position. The coupling also comprises a prelock assembly (30) and a pullback assembly (18, 19, 22, 23), which cooperate so that when the retaining ring (2) is moved in the insertion direction into position behind the lifting bevel (16), the prelock assembly (30) engages behind the retaining ring (2) and the pullback assembly (18, 19, 22, 23) shifts the locking element (10) into a prelocked position.

Abstract: A connector for connecting to an end of a corrugated conduit. An infitting section can be inserted into the end of a corrugated conduit and has at least one conical section which is provided with a ramp surface that slopes upward in the insertion direction, pointing away from the infitting end. A clamp is spaced radially apart from the infitting section and includes at least one engaging nose which can be inserted between two elevations of the corrugated conduit.

Abstract: The invention relates to a device for sealingly linking two end pieces (24) of a fluid line system, comprising a casing part (1) and an inner part (13). Said inner part (13) is arranged in a prefabricated arrangement within the casing part (1) in an axially displaceable manner and serves to fixate a sealing unit (21) that is detachably linked with the inner part (13) until an end piece (25) is inserted into the casing part (1) via an introduction area (3) and comes into contact with the inner part (13). When the end piece (25) is inserted, the inner part (13) is axially expelled from the casing part (1), whereby the sealing unit (21) is inhibited in its axial movement by an abutment (12) and remains within the casing part (1). The invention provides a device with which two end pieces can be sealingly linked while indicating the relative position of the end piece (25) coming into contact with the inner part (13) without requiring a separate handling of the sealing unit (21).