| 摘要 |
<p>PURPOSE: To provide a pipeline waterproofing device which maintains sealing of leak water from the pipeline port of a pipeline effectively for a long time and facilitates its installation and removal on a pipeline waterproofing device which seals leak water from the pipeline port of the pipeline through which communication cables are passed, in particular on the pipeline waterproofing device which is excellent in the durability of leak water function and easy an installation and removal. CONSTITUTION: One movable plate 1 and fixed plate 2 are arranged opposedly to the other movable plate 1 and fixed plate 2, a flexible material 5 is provided between these movable plates 1 and fixed plates 2, and fixing devices 3 are inserted fixedly into these plates. Also the movable plates 1 are adjusted to the fixed plates 2 and, therefore, the flexible material 5 is swelled pressingly and fitted closely onto the inside wall of a pipeline. Thus water is securely and easily prevented from entering an underground box from the inside of the pipeline.</p> |
