A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BACKFLOW PREVENTION MEMBER AND DRAIN TRAP
PROBLEM TO BE SOLVED: To provide a backflow prevention member and a drain trap capable of preventing drain water drained from a washing machine from flowing backward due to a pressure increase in a flow passage.SOLUTION: A backflow prevention member 11 prevents waste water W from flowing backward to a second flow passage L2 from a first flow passage L1 among flow passages having a first flow passage L1 for draining drain water (the waste water W) drained from a washing machine 310 while storing the drain water in a storage part T on the downstream side tail end, a second flow passage L2 for draining at least the waste water W leaked from the washing machine 310 by merging into the upstream side more than the storage part T in the first flow passage L1 and a third flow passage L3 for draining the drain water to the downstream side more than the storage part T. The backflow prevention member 11 comprises a constriction part provided on the upstream side more than a confluent part with the second flow passage L2 in the first flow passage L1 and partially narrowing the axis-orthogonal cross-sectional area of the first flow passage L1.SELECTED DRAWING: Figure 1
【課題】洗濯機から排出された排水が流路内の圧力上昇に起因して逆流することを防止できる逆流防止部材および排水トラップを提供する。【解決手段】逆流防止部材１１は、洗濯機３１０から排出された排水（排水Ｗ）を下流側の末端の貯留部Ｔによって貯留しながら排出させる第１の流路Ｌ１と、第１の流路Ｌ１のうち貯留部Ｔよりも上流側に合流し洗濯機３１０から漏洩した少なくとも排水Ｗを排出させる第２の流路Ｌ２と、排水を貯留部Ｔよりも下流側に排出させる第３の流路Ｌ３と、を備えた流路のうち、第１の流路Ｌ１から第２の流路Ｌ２へ排水Ｗが逆流することを防止し、逆流防止部材１１は、第１の流路Ｌ１のうち第２の流路Ｌ２との合流部分よりも上流側に配設され、第１の流路Ｌ１の軸直交断面積を部分的に狭める狭窄部を、有している。【選択図】図１
BACKFLOW PREVENTION MEMBER AND DRAIN TRAP
PROBLEM TO BE SOLVED: To provide a backflow prevention member and a drain trap capable of preventing drain water drained from a washing machine from flowing backward due to a pressure increase in a flow passage.SOLUTION: A backflow prevention member 11 prevents waste water W from flowing backward to a second flow passage L2 from a first flow passage L1 among flow passages having a first flow passage L1 for draining drain water (the waste water W) drained from a washing machine 310 while storing the drain water in a storage part T on the downstream side tail end, a second flow passage L2 for draining at least the waste water W leaked from the washing machine 310 by merging into the upstream side more than the storage part T in the first flow passage L1 and a third flow passage L3 for draining the drain water to the downstream side more than the storage part T. The backflow prevention member 11 comprises a constriction part provided on the upstream side more than a confluent part with the second flow passage L2 in the first flow passage L1 and partially narrowing the axis-orthogonal cross-sectional area of the first flow passage L1.SELECTED DRAWING: Figure 1
【課題】洗濯機から排出された排水が流路内の圧力上昇に起因して逆流することを防止できる逆流防止部材および排水トラップを提供する。【解決手段】逆流防止部材１１は、洗濯機３１０から排出された排水（排水Ｗ）を下流側の末端の貯留部Ｔによって貯留しながら排出させる第１の流路Ｌ１と、第１の流路Ｌ１のうち貯留部Ｔよりも上流側に合流し洗濯機３１０から漏洩した少なくとも排水Ｗを排出させる第２の流路Ｌ２と、排水を貯留部Ｔよりも下流側に排出させる第３の流路Ｌ３と、を備えた流路のうち、第１の流路Ｌ１から第２の流路Ｌ２へ排水Ｗが逆流することを防止し、逆流防止部材１１は、第１の流路Ｌ１のうち第２の流路Ｌ２との合流部分よりも上流側に配設され、第１の流路Ｌ１の軸直交断面積を部分的に狭める狭窄部を、有している。【選択図】図１
BACKFLOW PREVENTION MEMBER AND DRAIN TRAP
逆流防止部材および排水トラップ
MINAMIKANAYAMA TAKASHI (author) / NAGAI KEISUKE (author) / SHIMIZU TAKESHI (author)
2017-03-02
Patent
Electronic Resource
Japanese
IPC:
E03C
DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER
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Hausinstallationen für Frisch- oder Abwasser
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