Pipe coupling having keys with camming surfaces

Details Pipe coupling having keys with camming surfaces Pipe coupling having keys with camming surfaces

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 19/025 (2006.01) F16L 19/065 (2006.01) F16L 23/032 (2006.01) F16L 23/036 (2006.01) E21B 17/02 (2006.01)

Patent

CA 2561272

A coupling for connecting two pipes together end to end is disclosed. The coupling includes a plurality of segments positionable circumferentially around the pipes. Each of the segments is attachable to one another end to end. Each of the segments has a pair of keys projecting radially inwardly toward the pipes. Each key is engageable with a circumferential groove on one of the pipes. Camming surfaces are positioned on the keys adjacent to the ends of the segments. Each camming surface preferably has an angularly oriented face that forms a wedge to provide a mechanical advantage when the camming surface engages the groove.

L'invention concerne un raccord permettant de raccorder deux tubes ensemble bout à bout. Le raccord comprend une pluralité de segments pouvant être positionnés de manière circonférentielle autour du tube. Chacun des segments peut être fixé à un autre segment bout à bout. Chacun des segments présente une paire de clés dépassant radialement intérieurement vers les tubes. Chaque clé peut venir en contact avec une rainure circonférentielle sur un des tubes. Les surfaces de verrouillage sont positionnées sur les clés adjacentes aux extrémités des segments. Chaque surface de verrouillage présente de préférence une face orientée en angle laquelle forme une cale pour procurer un avantage mécanique lorsque la surface de verrouillage vient au contact de la rainure.

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