| 摘要 |
1. A notched type sealing device, making a pipe coupling, used to connect two conducting wires or two pipes (4), composed of a sleeve (2) and flexible sealing elements (1, 3) which are set after one or several compressions are applied onto the sleeve (2) and the said sealing elements by means of an adequate tool, this device characteristics being as follows : it is composed of a sleeve (2) which was previously coated with a plastic element the Young's modulus of which is lower than that of the sleeve (2) and which can be expanded in the axial direction of the conducting wires or pipes (4) when a radial compression is being applied ; and of washers (3) which are more flexible than the element (1) and ensure a sealed construction between the device and the conducting wires or pipes (4) to be butt-jointed, once the element and the sleeve have been radially compressed.
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