| 摘要 |
The present invention relates to a packing for a water pipe and a sewage pipe. Packings for a high-capacity water pipe/sewage pipe to maintain the airtightness when the water pipes/sewage pipes of a desired length to be embedded under the ground are connected to each other are disposed at regular intervals, and an end portion of each packing is provided with a coupling member to easily connect the packings of various sizes. Even though a worker installs the packing to the high-capacity water pipe/sewage pipe having a diameter of 1 m or longer, the worker first inserts the separated small packing to the water pipe/sewage pipe by himself/herself, and then connects coupled structures, in which the separated small packing is first inserted, and boundaries to connect the circular packing, thereby improving the workability. The packings separated according to the size are provided so that two or more separated packings of selected size are connected to each other to obtain a wanted size, thereby reducing mold expenses and minimizing an area required for keeping molds. |
