| 摘要 |
<p>A rapid joining system (1) for joining elements of a chimney duct comprises elements which are connectable to one another to form a chimney duct; each element (2) extends along and about an axis (A) and comprises a male member (6) and a female member (7), arranged at opposite ends (3, 4) of the element (2) ; the male member (6) and the female member (7) comprise respective guide portions (11, 31), provided with respective series of projections (13, 33) inclined with respect to the axis (A) and cooperating for axially moving the male member (6) into the female member (7); the male member (6) comprises a conical portion (12), shaped so as to externally receive a connection portion (32) of the female member (7) and radially force said connection portion (32) upon the movement of the male member (6) into the female member (7).</p> |
