Aeroquip-vickers International Gmbh

Trinova Limited

Aeroquip Zweigniederlassung Der Trinova Gmbh

Andreas Fixemer

Carsten Mucke

An arrangement for connecting two pipe ends comprising a respective closure part around each of the pipe ends. The closure parts are connected together in a bayonet-type connection. One closure part includes an annular surface with a first part parallel to a sealing device placed between the pipe ends and with a second part inclined with respect to the sealing device. The latter part draws the closure parts and the pipe ends together as the closure parts are rotated relatively toward each other and as the one closure part is guided along the inclined portion of the annular surface. A respective sealing surface is provided on each of the pipe end parts. The sealing surfaces are brought axially toward each other by movement together of the closure parts. A sealing device is clamped between the sealing surfaces on the pipe ends, when they are brought together by rotating the closure parts, for providing a pressure-tight closure of the pipes at the sealing surfaces, in that rotation of the closure parts to the locked position draws the sealing surfaces against the sealing device, while rotation of the closure to the unlocked position before the closure parts are separated moves the sealing surfaces off sealing against the sealing device, whereby the sealing device is clamped only in the axial direction.

Arrangement for connecting two tubular elements

A rapid coupling, having a socket and a nipple which can be inserted into the socket. A locking device for the coupled position between the socket and nipple includes a radially outwardly protruding bead on the nipple. A cage mounted in the socket includes widenable holding fingers for gripping behind the bead on the nipple. The cage has an indicating device which includes radially outwardly displaceable, axially extending arms. The ends of those arms have a nose that can be seen and/or felt from the outside of the socket in the coupled position. A connection at the other end of the socket to a pipeline.

Rapid coupling

A quick-action coupling, in particular for refrigerant lines, is provided with a sleeve (1) and a nipple (2) which can be pushed thereinto, with a set of seals (5) having at least one seal (6) of elastomeric material. It has furthermore a locking device (10, 11, 15) for the coupled position between sleeve (1) and nipple (2), which locking device has a bead (15) on the nipple (2) projecting in particular radially outwards and a cage (10) mounted in the sleeve (1), with retaining fingers (11) which can be opened out and engage behind the bead. A releasing tool (25) for opening out the retaining fingers (11) of the cage (10) is provided, which tool can be fitted onto the nipple (2) and can be pushed in in the direction of the sleeve (1). There is provided on the outer circumference of the sleeve (1) a radially outwardly projecting border (30). The releasing tool (25) had a radially inwardly directed collar (29), serving as a stop. The releasing tool (25) has a sleeve-like, essentially axially extending expanding collar (31) for the retaining fingers (11), which collar forms with the projecting bead (15) of the nipple (2) a stop for limiting the drawing-off movement when releasing the quick-action coupling. There is provided on the nipple (2), in assignment to the nipple-side end of the sleeve (1), a circumferential depression (19) onto which a dust-protection ring (18) of elastomeric material is displaceably fitted.

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Baden-Baden, Germany

Andreas Fixemer