| 摘要 |
The invention relates to a gulley for a roof, balcony or terrace, having an inlet pipe which is enclosed by an insulating edge on which a sealing sheet is fixedly clamped by means of a clamping edge, and having a sealing ring held in an insulating-edge groove on the outer side of the inlet pipe. Owing to the sliding fit which is necessary for adjusting the height of the insulating edge and of the clamping edge with respect to the inlet pipe, water seeps through to the sealing ring in the case of such gulleys used outdoors, this water freezing in the winter, detaching the sealing ring and destroying the sealing effect. This is avoided according to the invention in that an annular groove in which a second sealing ring is located is provided above the sealing ring between the insulating edge and the clamping edge, and in that this second sealing ring can be axially braced by means of the clamping edge and can be radially deformed until it bears against the inlet pipe. |
