| 摘要 |
An adapter for coupling connecting pipes for a commercial aircraft is suitable for efficient installation in the floor. Furthermore, said adapter will be able to implement leakage-free connecting of pipes of a system for liquids. The adapter comprises an adapter top and an adapter bottom which may be implemented with a tubular adapter body. The latter is intended for connection to a connecting pipe through which a flow-through medium containing sewage and/or other liquids is conveyed. The adapter bottom may comprise a first adapter pipe that can be positioned within a recess in the floor. An attachment flange may be formed to the external circumference of the first adapter pipe, through whose central flange opening the first adapter pipe is led, which attachment flange is positioned on the first adapter pipe end of the first adapter pipe and is attached by one flange side to a bottom floor region of the floor. The adapter top may have a second adapter pipe to which a tubular supporting flange may be joined. The first supporting flange end closes near or at or at a distance from a first adapter pipe end of the adapter pipe. At the circumference of the supporting-flange-free pipe end region of the second adapter pipe or of the supporting flange, several ring-shaped elevations are positioned which are arranged side-by-side and at a spacing. Between two side-by-side elevations a groove region is formed. The supporting-flange-free pipe end region, and/or the pipe end region reinforced with said supporting flange, of the second adapter pipe as well as the circumferentially positioned elevations may be inserted into the pipe cross section of the first adapter pipe.
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