Patent ID: 7387318
Filing Date: 2008-06-17
Classification: F01P,F02M,F16L

Abstract:
1. A piping connector comprising: a socket in a tubular shape for attaching to an end of one pipe; and a plug in a tubular shape for attaching to an end of an other pipe, wherein, the socket comprises a pair of notched grooves at opposite peripheral sides, the notched grooves are mounted with a stopper comprising a U-shape, the plug comprises a first taper portion, a flat portion and a second taper portion extending respectively from a front end side and along an axial direction of the plug, and a groove for fitting the stopper being formed at a ridge portion of the second taper portion, and an inner periphery of the socket is arranged with a seal ring for sealing between the inner periphery of the socket and an outer periphery of the plug in an airtight connection, wherein a first distance in the axial direction of the plug between a plug contacting portion of the stopper and a plug contacting portion of the seal ring, is equal to or less than a second distance in the axial direction of the plug between an initial stopper contacting portion of the plug and an initial seal ring contacting portion on a radius portion on the plug between the flat portion and the first taper portion.