| 摘要 |
<p>The invention relates to a cock with a truncated cone-shaped plug (2), rotatable in a corresponding housing hole inside the body (1) of the cock, and whose plug is provided with at least one through hole (6) which can provide communication between at least two connecting conduits (4, 5) made inside the body (1) of the cock, both the body (1) of the cock and the plug (2) being made of plastic and the said cock being characterized in that the body (1) of the cock and the rotatable plug (2) have interacting elements (12, 13) for snap coupling extending all around the plug (2) and being coaxial thereto, one (12) of them being made of a lateral annular projection, provided at that end of the plug (2) which has the shorter diameter, out of the body (1) of the cock, and engaging through an undercut with the other element (13), which is preferably formed by the outer annular end edge of a neck provided on the body (1) of the cock on the extension of the hole for housing the plug (2). <IMAGE></p> |
