PIPE JOINT INCLUDING IMPROVED LOCKING MECHANISM

摘要

A pipe joint (20) is provided that includes a first length of pipe having a first flange (28) and a second length of pipe having a second flange (36). The first flange (28) includes a ramp (52) extending outwardly and away from a leading exterior surface (46) and a first locking surface (56) extending inwardly and away from the ramp (52). The second flange (36) includes an interior portion sized to receive the first flange (28). The interior portion includes a second locking surface (64) and an inwardly facing annular groove (62) adapted to receive a resiliently expandable locking member (72). The second locking surface (64) is positioned within the interior portion such that, upon insertion of the first flange (28) into the second flange (36), the resiliently expandable locking member (72) expands as it travels up the ramp (52) and then contracts to become positioned between the first locking surface (56) and the second locking surface (64) to prevent withdrawal of the first flange (28) from the second flange (36).