Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
MANHOLE AIR FLOW DUCT FITTING DEVICE
To provide a manhole air flow duct fitting device which, even when using large-diameter air flow duct with large air volume, is easy for operators to enter, exit and carry in materials and easy to transport and install, and uses a simple structure which can be made at low cost, and whose safety and versatility are high.SOLUTION: The manhole air flow duct fitting device comprises a lower lid body 2 with a cylindrical fixed frame 3 which projects downward and is fitted into the opening part of the manhole and an upper lid body 1 which is joined rotatably around the horizontal rotation axis provided at the end part of the lower lid body 2 and has a mounting hole 4 for mounting the air flow duct 6. The upper lid 1 closes the upper surface of the fixed frame 3 in a state where the upper lid body 1 is placed overlapping on the lower lid body 2, and the mounting hole 4 is provided so as to fit inside the fixed frame 3 as viewed from above.SELECTED DRAWING: Figure 3
【課題】風量の多い大口径の送風ダクトを採用した場合であっても、作業従事者の出入りや資材の搬入が容易なうえに、運搬や設置も容易であり、簡易な構造を採用して安価に製造ができる安全性と汎用性の高いマンホール送風ダクト装着装置を提供する。【解決手段】下方に突出してマンホールの開口部に篏合する円柱状の固定枠３を備えた下蓋体２と、下蓋体２の端部に設けた水平回動軸まわりに回動可能に接続されるとともに、送風ダクト６を取り付ける取付孔４を備えた上蓋体１とからなり、下蓋体２の上に上蓋体１を重置した状態で、上蓋体１が固定枠３の上面を閉塞するとともに、取付孔４が、上方から見て固定枠３の内側に収まるように設けるようにしたものである。【選択図】図３
MANHOLE AIR FLOW DUCT FITTING DEVICE
To provide a manhole air flow duct fitting device which, even when using large-diameter air flow duct with large air volume, is easy for operators to enter, exit and carry in materials and easy to transport and install, and uses a simple structure which can be made at low cost, and whose safety and versatility are high.SOLUTION: The manhole air flow duct fitting device comprises a lower lid body 2 with a cylindrical fixed frame 3 which projects downward and is fitted into the opening part of the manhole and an upper lid body 1 which is joined rotatably around the horizontal rotation axis provided at the end part of the lower lid body 2 and has a mounting hole 4 for mounting the air flow duct 6. The upper lid 1 closes the upper surface of the fixed frame 3 in a state where the upper lid body 1 is placed overlapping on the lower lid body 2, and the mounting hole 4 is provided so as to fit inside the fixed frame 3 as viewed from above.SELECTED DRAWING: Figure 3
【課題】風量の多い大口径の送風ダクトを採用した場合であっても、作業従事者の出入りや資材の搬入が容易なうえに、運搬や設置も容易であり、簡易な構造を採用して安価に製造ができる安全性と汎用性の高いマンホール送風ダクト装着装置を提供する。【解決手段】下方に突出してマンホールの開口部に篏合する円柱状の固定枠３を備えた下蓋体２と、下蓋体２の端部に設けた水平回動軸まわりに回動可能に接続されるとともに、送風ダクト６を取り付ける取付孔４を備えた上蓋体１とからなり、下蓋体２の上に上蓋体１を重置した状態で、上蓋体１が固定枠３の上面を閉塞するとともに、取付孔４が、上方から見て固定枠３の内側に収まるように設けるようにしたものである。【選択図】図３
MANHOLE AIR FLOW DUCT FITTING DEVICE
マンホール送風ダクト装着装置
MIYAKE HIDEFUMI (Autor:in) / YAMAUCHI SHUJI (Autor:in)
13.06.2019
Patent
Elektronische Ressource
Japanisch
MANHOLE PREVENTING MANHOLE COVER DISPLACEMENT DURING BACK FLOW
| Europäisches Patentamt | 2024
Online Contents | 1998