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A platform for research: civil engineering, architecture and urbanism
BACKFLOW PREVENTION DEVICE AND BACKFLOW PREVENTION METHOD
To provide a backflow prevention device that can be manufactured inexpensively and installed easily, and a backflow prevention method.SOLUTION: A backflow prevention device 2 of the present invention is arranged inside a public sewage basin 107 extending upward from a drain pipe 106 buried in the ground to a ground surface to prevent backflow of sewage 202 from a sewer main pipe 109. The backflow prevention device comprises: a rod-like member 40 extending vertically; and a bag-like member 30 with at least a lower part of the rod-like member enclosed, where an upper opening 31 is fixed around the rod-like member in a watertight state, retaining water 200 inside the bag-like member. The backflow prevention device is structurally simple and can be manufactured inexpensively as the backflow prevention device is composed of the rod-like member and the bag-like member. Furthermore, installation is easy since the backflow prevention device is simply arranged inside the public sewage basin with water retained in the bag-like member.SELECTED DRAWING: Figure 11
【課題】安価で製造でき、設置が容易な逆流防止具及び逆流防止方法を提供する。【解決手段】 本発明の逆流防止具2は、地中に埋設された排水管106から上方に地面までのびる公共汚水桝107の内部に配置されて下水道本管109からの下水202の逆流を防ぐ逆流防止具である。垂直方向にのびる棒状部材40と、棒状部材の少なくとも下部を内包した状態で、上部開口31が棒状部材の周囲に水密状態で固定される袋状部材30とを備えており、袋状部材の内部に水200を貯留する。逆流防止具は棒状部材及び袋状部材で構成されているため構造が簡易であり、安価に製造できる。また、袋状部材に水を貯留させた状態で公共汚水桝の内部に配置するだけなので設置が容易である。【選択図】図11
BACKFLOW PREVENTION DEVICE AND BACKFLOW PREVENTION METHOD
To provide a backflow prevention device that can be manufactured inexpensively and installed easily, and a backflow prevention method.SOLUTION: A backflow prevention device 2 of the present invention is arranged inside a public sewage basin 107 extending upward from a drain pipe 106 buried in the ground to a ground surface to prevent backflow of sewage 202 from a sewer main pipe 109. The backflow prevention device comprises: a rod-like member 40 extending vertically; and a bag-like member 30 with at least a lower part of the rod-like member enclosed, where an upper opening 31 is fixed around the rod-like member in a watertight state, retaining water 200 inside the bag-like member. The backflow prevention device is structurally simple and can be manufactured inexpensively as the backflow prevention device is composed of the rod-like member and the bag-like member. Furthermore, installation is easy since the backflow prevention device is simply arranged inside the public sewage basin with water retained in the bag-like member.SELECTED DRAWING: Figure 11
【課題】安価で製造でき、設置が容易な逆流防止具及び逆流防止方法を提供する。【解決手段】 本発明の逆流防止具2は、地中に埋設された排水管106から上方に地面までのびる公共汚水桝107の内部に配置されて下水道本管109からの下水202の逆流を防ぐ逆流防止具である。垂直方向にのびる棒状部材40と、棒状部材の少なくとも下部を内包した状態で、上部開口31が棒状部材の周囲に水密状態で固定される袋状部材30とを備えており、袋状部材の内部に水200を貯留する。逆流防止具は棒状部材及び袋状部材で構成されているため構造が簡易であり、安価に製造できる。また、袋状部材に水を貯留させた状態で公共汚水桝の内部に配置するだけなので設置が容易である。【選択図】図11
BACKFLOW PREVENTION DEVICE AND BACKFLOW PREVENTION METHOD
逆流防止具及び逆流防止方法
OZAKI TOSHIRO (author)
2024-05-14
Patent
Electronic Resource
Japanese
IPC:
E03F
SEWERS
,
Abwasserkanäle
DRAIN PIPE BACKFLOW PREVENTION STRUCTURE AND BACKFLOW PREVENTION METHOD
| European Patent Office | 2024
British Library Online Contents | 1993