| 摘要 |
A connector for piping including two tubular fitting parts and quick-coupling and quick release connector having a plurality of locking segments circumferentially distributed in a plane perpendicular to the axis of the fitting parts and housed in radial slots of an axial projecting portion of a first fitting part that, during the coupling stage, is superimposable to a corresponding projecting axial portion of the second fitting part. A revolving ring can be controlled to rotate in order to work on the locking segments so as to push them into at least one radial seat of the projecting portion of the second part of a joint or to house them in its own radial seat, respectively for the coupling and the uncoupling of the fitting parts. Two independently operable hydraulic cylinders are arranged substantially at 180° from each other in the rotation plane of the revolving ring and they react, each one, between a first lever fastened to the first fitting part and a second lever fastened to the revolving ring. The first lever is made up of a radially more external part and of a radially more internal part that are connected with each other by an articulation which is modifiable in order to be able to assume a first operating condition for the complete mutual locking of the two parts of the first lever and a second operating condition of consent to the rotation of the radially more external part of the first lever in a direction of approach to the second lever.
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