| 摘要 |
<p>A collar device (1) for clamping between tubular sections (2) for conveying aeriforms to prevent them from slipping apart is described, in which each section comprises a male end (2a) and a female end (2b) which are axially opposed, each male end of a section being capable of being coupled with the female end of an adjacent tubular section by fitting into it, with fluid-tight sealing means interposed between the male and female ends for leaktight coupling between them. The device comprises a first collar portion and a second collar portion (1a, 1b) which can be coupled with one another in order to fit the collar (1) onto the tubular sections in the region of the coupling between the corresponding male and female ends (2a, 2b) of respective contiguous sections (2), tightening means (1a, 1b) between the portions for tightening the collar (1) onto the sections and fixing the collar firmly to the corresponding male end (2a) with the provision of radial clearance in the coupling with the female end (2b) so as to allow the female end freedom to slide axially relative to the collar, and means for limiting the axial movement of the female end (2b), provided on the collar portions (1a, 1b) and suitable for cooperating with the female end (2b) to limit relative axial sliding between the mutually coupled male and female ends, preventing adjacent tubular sections (2) from slipping apart.</p> |
