| 摘要 |
A device for the quick coupling of a pipe fitting (50) to a flanged pipe is described. The device comprises a coupling plate (13) that is rigidly fastened to one end of the fitting so as to be axially approachable to the front of a terminal flange (12) of the flanged pipe, at least three locking wheels (15) rotatable around their own axes and projecting frontally from said plate (13) in circumferentially spaced positions and remotely controllable means (19) for controlling the rotation of said rollers (15) around their own axes. Each locking wheel (15) has round shape with a cut (24) along a circle chord in order to allow in one angular position with the chord facing the axis, and to prevent in all the other angular positions, the passage of the flange (12) of the flanged pipe among said wheels (15) for the reciprocal approach and the movement away of the plate (13) and the flange (12). Each locking wheel (15) has in addition, toward said plate (13) a helical neck (25) that is capable to cause, as a result of the rotation of the wheel (15) from said one angular position to said other angular positions, the front abutment engagement and the locking of said flange (12) against said plate (13). |
