A connection device for a ventilation element includes a transmission connection and a vent connection, the vent connection connects the connection device to a ventilation element, the component connection has a connection piece extending along a connecting axis, and a torsion ring surrounding the connection piece. A connecting rocker is arranged on the torsion ring, and the torsion ring is connected to the connection piece by a connecting bridge, and the connecting rocker has an actuation section and an engaging section for forming an interlocking connection. The torsion ring runs between the actuation section and the engaging section in a connecting region, in which it is connected to the connecting rocker, and the connecting bridge has a connecting arm, which starts from the connection piece and extends in the direction of the connecting axis up to the torsion ring and retains same at a radial distance from the connection piece.

A coupling bushing includes a bushing body and a retainer for locking a coupling plug into the bushing body. The bushing body has a connecting section and a coupling section, wherein the connecting section and the coupling section are fluidically connected with each other via an inner channel. A bushing valve is arranged in the inner channel (8), wherein the bushing valve (10a) comprises a valve holder, an axially movable valve body and a valve seat. The retainer has at least one latching element, wherein the at least one latching element has a resiliently elastic design. The at least one latching element is designed to engage with a coupling plug.

A fluid line quick connector has a retainer and a data matrix. The retainer is caused to move via a spigot upon insertion of the spigot within the fluid line quick connector. The data matrix is obstructed by the retainer when the spigot is not inserted in the fluid line quick connector, and is revealed when the spigot is inserted in the fluid line quick connector. When obstructed, a suitable reading and scanning of the data matrix cannot take place. And when revealed, in contrast, a suitable reading and scanning of the data matrix can occur.

Provided is a quick connector assembly for joining a male member and a female connector member together to secure fluid communication in a fluid line system. The quick connector assembly includes a primary latch and a secondary latch configured to toggle between engaged and disengaged positions and to allow for a visual, audible, and/or tactile indication as to the status of a secure attachment between a male member and a female connector member.

A female connector for receiving a male connector includes a housing, a support ring, a clip, and a clip blocking member. The male connector includes a groove. The housing includes an outer surface and housing openings. The support ring includes support ring openings. The clip includes an operation portion between a pair of clip legs. The pair of clip legs can pass through the housing and support ring openings. The clip blocking member is located outside the housing and has a pair of blocking faces which face the pair of clip legs. When the groove aligns with the housing and support ring openings, the pair of clip legs enter the groove, and the operation portion moves to a travel end position. In the travel position, the distal ends of the pair of clip legs are between the pair of blocking faces and the outer surface.

A method of using a mechanical joint restraint includes inserting an end of a pipe length into a gland bore of a gland, a ring bore of a gripping ring, and a gasket bore of a gasket, the gland, the gripping ring, and the gasket together forming the mechanical joint restraint; inserting at least a portion of the gasket of the mechanical joint restraint into a socket of a piping element; inserting the end of the pipe length into the socket of the piping element; and drawing the gland towards a flange of the piping element to compress the gasket into sealing engagement with the piping element and the pipe length.

A connector arrangement (100) for connecting a first tube (102) and a second tube (104) in a detachable manner has a first connector (110) and a second connector (130), wherein both connectors (110, 130) have a closed circumference. For establishing a connection between the first and second connectors (110, 130) an internal surface of a first circumferential portion (115) of the first connector (110) is arranged on an external surface of a first circumferential portion (135) of the second connector (130) and an external surface of a second circumferential portion (118) of the first connector (110) is arranged on an internal surface of a second circumferential portion (138) of the second connector (130). An air duct having such a connector arrangement (100) and connectors for such a connector arrangement (100) is disclosed.

A connector arrangement (100) for connecting a first tube (102) and a second tube (104) in a detachable manner has a first connector (110) and a second connector (130), wherein both connectors (110, 130) have a closed circumference. For establishing a connection between the first and second connectors (110, 130) an internal surface of a first circumferential portion (115) of the first connector (110) is arranged on an external surface of a first circumferential portion (135) of the second connector (130) and an external surface of a second circumferential portion (118) of the first connector (110) is arranged on an internal surface of a second circumferential portion (138) of the second connector (130). An air duct having such a connector arrangement (100) and connectors for such a connector arrangement (100) is disclosed.

The rapid assembly flange joint consists of a connecting device in the form of a constricting collar made up of at least two parts with a shaped groove on the concave face, the groove corresponding to the cross-section of the two coupled flanges of the members that are being connected, and clamping elements in the form of retaining sections on the flanges. The connecting device is provided with fasteners in the form of walls; the retaining sections are in the form of grooves, the width of which is not less than the thickness of the one or two fasteners that engage therewith. The number of grooves is not less than the number of component parts of the connecting device. The rapid assembly flange joint provides for a reliable connection between flanged cylindrical members without the need for additional fastening and clamping elements and without increasing the sizes of the connection point.

A plug connection (1) for fluid lines, with two intermateable coupling parts (2, 3), which in an inserted state can be releasably locked via a locking device (4) consisting of two outer radial flange-like retaining ribs (21, 31) of the two coupling parts (2, 3), which are adjacent in an insertion direction (S) and axial (X-X) in inserted state and a retaining part (5) with an annular contour, which in preassembled state can be axially and radially fixed and undetachably assembled on one of the two coupling parts (3) and in an assembled state axially and radially encompasses the retaining ribs (21, 31) of the two coupling parts with at least one radially elastically moving retaining section (53) with a C-shaped axial section having two collars (51, 52). The plug connection incorporates features to ensure the undetachability of the retaining part (5) and minimize the space requirement, in particular during disassembly.