JOINT DEVICE FOR CORRUGATED PIPE

摘要

Disclosed therein is a joint device for a corrugated pipe. A socket pipe in which a packing is forcedly inserted is joined to a non-corrugated part of the corrugated pipe and the non-corrugated part is expanded at the position of the packing, so as to keep airtightness in a pressed state of the packing. The joint device has a guide groove formed on the outer circumference of the socket pipe, a connector fit to the socket pipe, and a movable bolt screw-coupled to the outer face of the socket pipe and forcedly joined to the guide groove, so as to freely rotate the connector independently from the corrugated pipe.

主权项

1. A joint device for a corrugated pipe comprising:
a corrugated pipe having crests and valleys which are formed continuously and a metal woven layer surrounding an outer face of the corrugated pipe; a non-corrugated part formed at an end portion of the corrugated pipe; an inner ring fit to the non-corrugated part and located on an inner face of the metal woven layer; a fixing ring fit to the non-corrugated part and located on an outer face of the metal woven layer; a socket pipe having a coupling hole to which the fixing ring is forcedly fit; a through hole formed inside the socket pipe and connected to the coupling hole, and an outer fitting groove and a guide groove formed on an outer face thereof; a connector having a spiral hole, which is perforated from the outer face of the connector 300 to an insertion hole located therein and corresponds to the guide groove, the insertion hole being connected to the through hole with the boundary of a jaw portion; a movable blot forcedly fit to the guide groove through the spiral hole; an inner packing forcedly fit to the inner fitting groove; and an outer packing forcedly fit to the outer fitting groove, further comprising: an expanded part for expanding the inner packing outwardly in a state where the socket pipe is fit to the non-corrugated part; and a bent part getting in contact with a jaw portion of the fitting groove at an end portion of the non-corrugated part.