Patent ID: 7614664

Claim:
A fast-connecting joint for corrugated pipes, said joint comprising: a main body provided with a through hole, an annular recess formed on a sidewall of the through hole; and an engaging member provided with a cylindrical sidewall defining a through hole, plural elastic curved petals being formed along the circumference of said cylindrical sidewall at a first end of said cylindrical sidewall and extending in the axial direction of said cylindrical sidewall, each of the petals having an inward bent portion formed at a distal end of said petal and a projection positioned on an outer surface of said petal; when in use, the engaging member is inserted into the through hole of the main body, and a corrugated pipe is inserted into the through hole of the engaging member; the corrugated pipe forces the elastic curved petals to extend outward, causing the projection of the petals to engage with the annular recess of the main body to prevent the engaging member from being separated from the main body; and the inward bent portion of the petals engages with corrugated outer surface of the corrugated pipe to restrict backward movement of the corrugated pipe relative to the engaging member.