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A platform for research: civil engineering, architecture and urbanism
METHOD FOR REMOVING BRANCH PIPE AND REMOVAL TOOL
To provide a simple removal tool for removing a branch pipe with uninterrupted water in a branch pipe conduit, to simplify removal work.SOLUTION: A thread 13 protruding inward from an outer peripheral wall surface is formed on the inner peripheral surface of a pipe branch port 11 in a branch pipe conduit. After a branch pipe is separated with a gate valve mechanism closed, a screw part 41 screwed with the thread 13 is formed on a tip side. An insert body 5 is provided to a hermetically sealing body 4 provided with the seal portion 42 on a base side. The hermetically sealing body 4 is arranged in a lid container body 6, and an operation shaft 51 is projected to the outside of the lid container body. The lid container body is assembled outside the gate valve mechanism with the branch pipe removed. With the valve opened, the hermetically sealing plug 4 enters the pipe branch port 11. Then, the hermetically sealing body 4 is screwed and mounted, and thus a seal part 42 is pushed into the outer peripheral wall surface to hermetically seal the pipe branch port. After that, the lid container body, the gate valve mechanism, and the insert body are removed.SELECTED DRAWING: Figure 3
【課題】 分岐管路において不断水で分岐管を撤去する簡単な撤去用具を提供して、撤去作業の簡素化を図る。【解決手段】 分岐管路における管分岐口１１の内周面に外方側の周壁面より内方へ突出した螺条１３を形成しておき、仕切弁機構を閉弁状態で分岐管を分離した後、先方に螺条１３と螺合する螺子部４１を形成し、基方にシール部４２を設けた密栓体４に挿入体５を付設し、密栓体４を蓋容器体６に内置すると共に操作軸５１を蓋容器体外方に突出させ、分岐管を外した仕切弁機構外方に蓋容器体を組み込み、開弁状態で密栓体４を管分岐口１１に進入させ、密栓体４を螺合装着することでシール部４２を外方側周壁面内に押し込んで管分岐口を密閉する。然る後蓋容器体、仕切弁機構、挿入体を取り外す。【選択図】図３
METHOD FOR REMOVING BRANCH PIPE AND REMOVAL TOOL
To provide a simple removal tool for removing a branch pipe with uninterrupted water in a branch pipe conduit, to simplify removal work.SOLUTION: A thread 13 protruding inward from an outer peripheral wall surface is formed on the inner peripheral surface of a pipe branch port 11 in a branch pipe conduit. After a branch pipe is separated with a gate valve mechanism closed, a screw part 41 screwed with the thread 13 is formed on a tip side. An insert body 5 is provided to a hermetically sealing body 4 provided with the seal portion 42 on a base side. The hermetically sealing body 4 is arranged in a lid container body 6, and an operation shaft 51 is projected to the outside of the lid container body. The lid container body is assembled outside the gate valve mechanism with the branch pipe removed. With the valve opened, the hermetically sealing plug 4 enters the pipe branch port 11. Then, the hermetically sealing body 4 is screwed and mounted, and thus a seal part 42 is pushed into the outer peripheral wall surface to hermetically seal the pipe branch port. After that, the lid container body, the gate valve mechanism, and the insert body are removed.SELECTED DRAWING: Figure 3
【課題】 分岐管路において不断水で分岐管を撤去する簡単な撤去用具を提供して、撤去作業の簡素化を図る。【解決手段】 分岐管路における管分岐口１１の内周面に外方側の周壁面より内方へ突出した螺条１３を形成しておき、仕切弁機構を閉弁状態で分岐管を分離した後、先方に螺条１３と螺合する螺子部４１を形成し、基方にシール部４２を設けた密栓体４に挿入体５を付設し、密栓体４を蓋容器体６に内置すると共に操作軸５１を蓋容器体外方に突出させ、分岐管を外した仕切弁機構外方に蓋容器体を組み込み、開弁状態で密栓体４を管分岐口１１に進入させ、密栓体４を螺合装着することでシール部４２を外方側周壁面内に押し込んで管分岐口を密閉する。然る後蓋容器体、仕切弁機構、挿入体を取り外す。【選択図】図３
METHOD FOR REMOVING BRANCH PIPE AND REMOVAL TOOL
分岐管の撤去方法及び撤去用具。
SAITO KEISUKE (author) / TAKAHASHI NAOYA (author)
2020-07-09
Patent
Electronic Resource
Japanese
APPARATUS AND METHOD FOR REPAIRING MAIN PIPE OR BRANCH PIPE OR MAIN PIPE AND BRANCH PIPE
European Patent Office | 2021
APPARATUS AND METHOD FOR REPAIRING MAIN PIPE OR BRANCH PIPE OR MAIN PIPE AND BRANCH PIPE
| European Patent Office | 2020