BACKFLOW PREVENTION DEVICE AND DRAINAGE BASIN EQUIPPED WITH BACKFLOW PREVENTION DEVICE
To provide a backflow prevention device that can be installed without impeding a flow even in a drainage system with a large amount of forward flow drainage, can operate to reliably close a backflow prevention valve when backflow water occurs, has excellent durability and maintainability, and can be...
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| creator | OKAMOTO AKIRA HASHIZUME MINORU |
| description | To provide a backflow prevention device that can be installed without impeding a flow even in a drainage system with a large amount of forward flow drainage, can operate to reliably close a backflow prevention valve when backflow water occurs, has excellent durability and maintainability, and can be easily installed.MEANS FOR SOLVING THE PROBLEM: A backflow prevention device provided by the present invention comprises: a cylindrical valve pipe having an opening/closing port and a connection port; valve seat part formed at an open end of the valve pipe on an opening/closing side; and a valve body supported rotatably at an upper part on the opening/closing side of the valve pipe, the upper part of the valve pipe is provided with a bearing part for supporting the valve body, and a bearing part is provided with a stopper that can be removed in whole or in part, and that restricts a rotation range of the valve body by contacting the stopper with the valve body.SELECTED DRAWING: Figure 1
【課題】本発明は、順フロー排水の量が多い排水系統においてもその流れを阻害しないように設置することが可能であり、逆流水発生時は逆流防止弁を確実に閉じるように作動させることが可能であり、そして耐久性やメンテナンス性に優れ、簡単に取り付けることができる逆流抑止装置を提供することを目的とする。【課題を解決するための手段】本発明によれば、開閉口と接続口とを有する筒状の弁管と、弁管の開閉口側の開口端に形成された弁座部と、弁管の開閉口側の上部において回動自在に支持された弁体とを備えた逆流抑止装置において、弁管の上部には弁体を軸支するための軸受け部が設けられ、そして軸受け部には、全部または一部を除去することができ、弁体と当接することより弁体の回動範囲を制限するストッパーが設けられている逆流抑止装置が提供される。【選択図】 図１ |
| format | Patent |
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【課題】本発明は、順フロー排水の量が多い排水系統においてもその流れを阻害しないように設置することが可能であり、逆流水発生時は逆流防止弁を確実に閉じるように作動させることが可能であり、そして耐久性やメンテナンス性に優れ、簡単に取り付けることができる逆流抑止装置を提供することを目的とする。【課題を解決するための手段】本発明によれば、開閉口と接続口とを有する筒状の弁管と、弁管の開閉口側の開口端に形成された弁座部と、弁管の開閉口側の上部において回動自在に支持された弁体とを備えた逆流抑止装置において、弁管の上部には弁体を軸支するための軸受け部が設けられ、そして軸受け部には、全部または一部を除去することができ、弁体と当接することより弁体の回動範囲を制限するストッパーが設けられている逆流抑止装置が提供される。【選択図】 図１</description><language>eng ; jpn</language><subject>CESSPOOLS ; FIXED CONSTRUCTIONS ; SEWERAGE ; SEWERS ; WATER SUPPLY</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240725&DB=EPODOC&CC=JP&NR=2024099399A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240725&DB=EPODOC&CC=JP&NR=2024099399A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>OKAMOTO AKIRA</creatorcontrib><creatorcontrib>HASHIZUME MINORU</creatorcontrib><title>BACKFLOW PREVENTION DEVICE AND DRAINAGE BASIN EQUIPPED WITH BACKFLOW PREVENTION DEVICE</title><description>To provide a backflow prevention device that can be installed without impeding a flow even in a drainage system with a large amount of forward flow drainage, can operate to reliably close a backflow prevention valve when backflow water occurs, has excellent durability and maintainability, and can be easily installed.MEANS FOR SOLVING THE PROBLEM: A backflow prevention device provided by the present invention comprises: a cylindrical valve pipe having an opening/closing port and a connection port; valve seat part formed at an open end of the valve pipe on an opening/closing side; and a valve body supported rotatably at an upper part on the opening/closing side of the valve pipe, the upper part of the valve pipe is provided with a bearing part for supporting the valve body, and a bearing part is provided with a stopper that can be removed in whole or in part, and that restricts a rotation range of the valve body by contacting the stopper with the valve body.SELECTED DRAWING: Figure 1
【課題】本発明は、順フロー排水の量が多い排水系統においてもその流れを阻害しないように設置することが可能であり、逆流水発生時は逆流防止弁を確実に閉じるように作動させることが可能であり、そして耐久性やメンテナンス性に優れ、簡単に取り付けることができる逆流抑止装置を提供することを目的とする。【課題を解決するための手段】本発明によれば、開閉口と接続口とを有する筒状の弁管と、弁管の開閉口側の開口端に形成された弁座部と、弁管の開閉口側の上部において回動自在に支持された弁体とを備えた逆流抑止装置において、弁管の上部には弁体を軸支するための軸受け部が設けられ、そして軸受け部には、全部または一部を除去することができ、弁体と当接することより弁体の回動範囲を制限するストッパーが設けられている逆流抑止装置が提供される。【選択図】 図１</description><subject>CESSPOOLS</subject><subject>FIXED CONSTRUCTIONS</subject><subject>SEWERAGE</subject><subject>SEWERS</subject><subject>WATER SUPPLY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZAhzcnT2dvPxD1cICHINc_UL8fT3U3BxDfN0dlVw9HNRcAly9PRzdHdVcHIM9vRTcA0M9QwIcHVRCPcM8VDArZeHgTUtMac4lRdKczMoubmGOHvophbkx6cWFyQmp-allsR7BRgZGJkYWFoaW1o6GhOlCADkbzEp</recordid><startdate>20240725</startdate><enddate>20240725</enddate><creator>OKAMOTO AKIRA</creator><creator>HASHIZUME MINORU</creator><scope>EVB</scope></search><sort><creationdate>20240725</creationdate><title>BACKFLOW PREVENTION DEVICE AND DRAINAGE BASIN EQUIPPED WITH BACKFLOW PREVENTION DEVICE</title><author>OKAMOTO AKIRA ; HASHIZUME MINORU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2024099399A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2024</creationdate><topic>CESSPOOLS</topic><topic>FIXED CONSTRUCTIONS</topic><topic>SEWERAGE</topic><topic>SEWERS</topic><topic>WATER SUPPLY</topic><toplevel>online_resources</toplevel><creatorcontrib>OKAMOTO AKIRA</creatorcontrib><creatorcontrib>HASHIZUME MINORU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>OKAMOTO AKIRA</au><au>HASHIZUME MINORU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>BACKFLOW PREVENTION DEVICE AND DRAINAGE BASIN EQUIPPED WITH BACKFLOW PREVENTION DEVICE</title><date>2024-07-25</date><risdate>2024</risdate><abstract>To provide a backflow prevention device that can be installed without impeding a flow even in a drainage system with a large amount of forward flow drainage, can operate to reliably close a backflow prevention valve when backflow water occurs, has excellent durability and maintainability, and can be easily installed.MEANS FOR SOLVING THE PROBLEM: A backflow prevention device provided by the present invention comprises: a cylindrical valve pipe having an opening/closing port and a connection port; valve seat part formed at an open end of the valve pipe on an opening/closing side; and a valve body supported rotatably at an upper part on the opening/closing side of the valve pipe, the upper part of the valve pipe is provided with a bearing part for supporting the valve body, and a bearing part is provided with a stopper that can be removed in whole or in part, and that restricts a rotation range of the valve body by contacting the stopper with the valve body.SELECTED DRAWING: Figure 1
【課題】本発明は、順フロー排水の量が多い排水系統においてもその流れを阻害しないように設置することが可能であり、逆流水発生時は逆流防止弁を確実に閉じるように作動させることが可能であり、そして耐久性やメンテナンス性に優れ、簡単に取り付けることができる逆流抑止装置を提供することを目的とする。【課題を解決するための手段】本発明によれば、開閉口と接続口とを有する筒状の弁管と、弁管の開閉口側の開口端に形成された弁座部と、弁管の開閉口側の上部において回動自在に支持された弁体とを備えた逆流抑止装置において、弁管の上部には弁体を軸支するための軸受け部が設けられ、そして軸受け部には、全部または一部を除去することができ、弁体と当接することより弁体の回動範囲を制限するストッパーが設けられている逆流抑止装置が提供される。【選択図】 図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CESSPOOLS FIXED CONSTRUCTIONS SEWERAGE SEWERS WATER SUPPLY |
| title | BACKFLOW PREVENTION DEVICE AND DRAINAGE BASIN EQUIPPED WITH BACKFLOW PREVENTION DEVICE |
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