| 摘要 |
A connector for connecting end portions of double wall drain pipes is provided, in which connection portions of the drain pipes form a universal joint, so that the drain pipes can be connected to be angled under a predetermined angle. A holder portion (2) having a spherical inner space is fixed to one (1) of drain pipes to be connected. A sperical insertion portion (7) is fixed to the other drain pipe (1') correponding to an inner surface of the holder portion. Thus, as the sperical insertion portion is inserted into the holder portion to be connected, the drain pipe is installed to be angled with respect to the other drain pipe under a predetermined angle. |
