Arrangement for connecting two tubular elements
First Claim
1. An arrangement for connecting first and second pipe ends of a first and second pipe, respectively, the arrangement comprising:
- a first pipe having a first end and having a first sealing surface on the first pipe;
a second pipe having a second end and having a second sealing surface on the second pipe wherein the pipe ends are movable toward each other in an axial direction to move the sealing surfaces toward each other;
a first and a second closure part respectively at the first and the second pipe ends, the first and second closure parts being adapted to engage one another, and once engaged, the first and second closure parts have a first relative axial position;
the closure parts being so shaped, where they engage one another that when they are rotated in one direction, they are moved from the first axial position with respect to each other to reach a second locked position at a second relative axial position closer to each other, the first and second closure parts also defining between them a bayonet-type closure;
an annular sealing device disposed between the first and second sealing surfaces, the sealing device being shaped so that when the sealing device is positioned between the first and second sealing surfaces while the first and second closure parts are in the second locked position, the sealing device is clamped between the first and second sealing surfaces for providing a sealed closure of the pipe ends at the sealing surfaces, the bayonet connection of the closure parts being adapted to enable the sealing surfaces to be moved in the axial direction with respect to one another until the closure parts are moved into the second locked position, and the closure parts further enabling the sealing surfaces to be spaced apart sufficiently so as not to be sealed tightly against the sealing device when the closure parts are in the first position, and the closure parts being thereafter further movable with respect to one another by relative rotation thereof for moving the sealing surfaces into sealing engagement with the sealing device and for clamping the sealing device only in the axial direction.
1 Assignment
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Accused Products
Abstract
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.
24 Citations
19 Claims
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1. An arrangement for connecting first and second pipe ends of a first and second pipe, respectively, the arrangement comprising:
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a first pipe having a first end and having a first sealing surface on the first pipe;
a second pipe having a second end and having a second sealing surface on the second pipe wherein the pipe ends are movable toward each other in an axial direction to move the sealing surfaces toward each other;a first and a second closure part respectively at the first and the second pipe ends, the first and second closure parts being adapted to engage one another, and once engaged, the first and second closure parts have a first relative axial position;
the closure parts being so shaped, where they engage one another that when they are rotated in one direction, they are moved from the first axial position with respect to each other to reach a second locked position at a second relative axial position closer to each other, the first and second closure parts also defining between them a bayonet-type closure;an annular sealing device disposed between the first and second sealing surfaces, the sealing device being shaped so that when the sealing device is positioned between the first and second sealing surfaces while the first and second closure parts are in the second locked position, the sealing device is clamped between the first and second sealing surfaces for providing a sealed closure of the pipe ends at the sealing surfaces, the bayonet connection of the closure parts being adapted to enable the sealing surfaces to be moved in the axial direction with respect to one another until the closure parts are moved into the second locked position, and the closure parts further enabling the sealing surfaces to be spaced apart sufficiently so as not to be sealed tightly against the sealing device when the closure parts are in the first position, and the closure parts being thereafter further movable with respect to one another by relative rotation thereof for moving the sealing surfaces into sealing engagement with the sealing device and for clamping the sealing device only in the axial direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification