Circular quick -operation joint of institutional advancement

The utility model relates to a circular quick -operation joint of institutional advancement contains an ora terminalis and is equipped with a plurality of sliding sleeves that extend section and depressed area, an elastic element who locates the sliding sleeve inner edge, one holds the line unit with sliding sleeve activity combines, holds line unit outer fringe and has the restriction unit that can restrict each extension section, and one wear to locate in the sliding sleeve and with hold the connector body that the line unit combines. Therefore, can dock with the connecting seat with the connector body is direct when using, let the connecting seat back down the sliding sleeve, treat behind connecting seat and the connector body lock, elastic element is automatic with the sliding sleeve push back, make spacing the completion in the connecting seat outer fringe of sliding sleeve assemble the action, only need when dumping to move backward the sliding sleeve, it is no longer spacing in the connecting seat oute