| 摘要 |
A coupling for connecting hose or pipe ends has a sleeve portion and a cylindric insert portion, each to be secured to one of the ends to be connected. The insert portion, when "plugged" in the sleeve portion, sealingly engages same to provide the coupling. The invention couples the two parts to prevent axial displacement of same. It utilizes a locking lever pivotable about a transverse axis and having a locking bolt at a location between the pivot and the free end of the lever. The pivot of the lever is mounted on a transverse cross-piece extending between free ends of the arms of a U-shaped frame surrounding the coupling. The base of the "U" has an upwardly protruding second bolt. The arms of the "U" are each curved outwardly such that in one position, the curved section releases the halves of the coupling for becoming disconnected, while in the locked state, a section of the curved arms engages the sleeve and the insert portion at suitable recesses, to interlock same together with both bolts as referred to above. The advance in the art is in structural simplicity and ease of operation as a single lever, when locked, causes, in the disclosed embodiment, three additional locking places to become effective.
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