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JP3575235B2 - Underground burial equipment with waterproof function - Google Patents
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JP3575235B2 - Underground burial equipment with waterproof function - Google Patents

Underground burial equipment with waterproof function Download PDF

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JP3575235B2
JP3575235B2 JP20388897A JP20388897A JP3575235B2 JP 3575235 B2 JP3575235 B2 JP 3575235B2 JP 20388897 A JP20388897 A JP 20388897A JP 20388897 A JP20388897 A JP 20388897A JP 3575235 B2 JP3575235 B2 JP 3575235B2
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underground
storage container
control panel
waterproof function
facility
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JPH1136426A (en
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道隆 五味
啓助 小林
孝緒 坪井
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神鋼電機株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は、マンホールポンプの制御盤等の防水機能を備えた地下埋設設備に係り、特に当該設備の防水機能の改良に関する。
【0002】
【従来の技術】
工場・家庭用排水や雨水等の下水は、下水道の高低差を利用して汚水処理場まで送られるが、この高低差を長距離に亘って維持するのは困難であるから、所定の間隔で設けられるマンホールにおけるマンホールポンプにより下水をポンプアップして上記高低差を調整している。
一般に、マンホールポンプの運転を制御する制御盤は、地上に建てられたコンクリート等の支柱に取り付けられる。しかし、制御盤は一定の設置スペースを必要とするため、歩道上に建てた支柱に制御盤を取り付けると、歩行者等の通行に支障を来す場合がある。
【0003】
このため、マンホールポンプの制御盤を設置するときに、制御盤の取り付け支柱を歩道等に建てるのではなく、近隣の私有地に建てざるをえない場合もある。この場合、必ずしも当該私有地の所有者の了承を得られるとは限らず、このような事情から、マンホールポンプの制御盤を地下に埋設するようにすることが提唱されている。
【0004】
しかし、マンホールポンプの制御盤を地下に埋設する場合、大雨等の浸水に備えて、制御盤を防水構造とするなど、防水対策を施す必要があるが、従来の防水対策では高価な防水部材を用いて防水シールド構造とするため、制御盤の製造コストや設置コストの増大を招くという問題があった。
そこで、この解決策として、上記制御盤等の地下埋設装置に上方から収納容器を被せ、収納容器に密閉した空気により、地下埋設設備用の穴が水没した場合でも、地下埋設装置への浸水を防ぐようにした防水機能を備えた地下埋設設備が実用に供されている。
【0005】
この従来の防水機能を備えた地下埋設設備の構成を図6を用いて説明する。
図6は、前記地下埋設設備50の概略構成を示す縦断正面図である。
同図において、51は地下埋設装置であるマンホールポンプ(図示せず)の制御盤であり、制御盤51は、図示しない電源から、電源ケーブル52を介して電力が供給される。そして、図示は省略したが、マンホール内に設置した水位検出器によって検出されるマンホール内の水位に対応して、マンホールポンプの運転を制御する。
また、55は制御盤51を上方から収納する収納容器であり、地面GRから地中1〜2m程度の深さに制御盤51を埋設するための穴HLが掘られ、当該穴HL内周面及び底面に土砂の崩落を防止し、地下水等の浸入を防ぐための内壁60が設けられている。
【0006】
また、53は、マンホールポンプの制御盤51を収納容器55に収納して穴HLに設置する場合に、クレーン等で吊り上げるためのフックである。制御盤51は、収納容器55の下部に取り付けられた支持具56により固定支持されている。57は収納容器55の支持台で、収納容器55が揺動しないように固定支持している。
制御盤51の保守点検の際には、収納容器55を支持台57より取り外し、制御盤51を支持具56で収納容器55内に固定支持した状態で、フック53により収納容器55ごとクレーン等により吊り上げ、その後、収納容器55から制御盤51を取り出し、保守点検等のメンテナンス作業を行う。
なお、内壁60には蓋61が被せられ、通行人等の落下及び雨水等の流入を防止するようにしている。また、62は排水口62a、排水管62b、ガス浸入防止水切りトラップ62c等から成る排水設備であり、内壁60内部に浸入した水を排水管62bを介してマンホールに排出する。
【0007】
以上の構成において、大雨や洪水等により地下埋設設備が設置された地面GRが冠水し、内壁60内に水が浸入し、排水設備62による排水が間に合わずに当該内壁60内部が水没した場合でも、収納容器55内の空気は収納容器55内に閉じこめられて外部に漏れ出すことがないので、空気の内圧により水の浸入を防止し、制御盤51の主要部が冠水することを防ぐことができる。
また、制御盤51の下方部にも電源ケーブル52とのコネクタ58等の絶縁を必要とする部分があるため、収納容器55は、制御盤51の下方部も含めてほぼ完全に覆うように、制御盤51を収納する底の深い形状をしている。
【0008】
従って、制御盤51を特殊な防水部材で覆う等の完全防水構造とすることなく、単に収納容器55を上方から被せ、制御盤51全体を覆うという簡易な方法で、制御盤51を浸水から守ることができる。このような防水構造を備えた地下埋設設備とすれば、地下埋設装置の設置コストを大幅に削減することができると共に、確実に制御盤51等の地下埋設装置の浸水を防止することができる。
【0009】
【発明が解決しようとする課題】
ところで、上述したように、従来の防水機能を備えた地下埋設設備では、上方から地下埋設装置を収納する収納容器は、地下埋設装置をほぼ完全に覆うように、地下埋設装置の下方部も収納する底が深い形状をしていた。しかし、収納容器をこの形状とすると次のような問題が生じる。
(1)収納容器内の空気の通気性が悪くなり、地下埋設装置を稼働している場合に発生する熱や、地中から放出される水分の収納容器外への放散が悪くなり、地下埋設装置の故障の原因となり兼ねない。
(2)収納容器自体の内容積が大きく、従って、地下埋設設備が水没した場合の収納容器の浮力が大きくなり、浮力対策が重要となる。この浮力対策を怠ると、内壁内が水没した場合に、収納容器が上方に浮かび上がり、地下埋設装置が冠水し、また、上蓋を押し上げ地上を通行中の歩行者等を害する恐れがある。
この対応として収納容器の自重を重くするという方式を採ると、収納容器の製造コストや地下埋設装置の設置コストが増大するという問題が発生する。
(3)地下埋設設備周囲の内壁内の空間が、底が深い形状の収納容器により狭められるために、この空間を有効利用できなくなる。
(4)地下埋設装置の保守点検をする際に、クレーン等により収納容器ごと地下埋設装置を吊り上げ、それから収納容器から地下埋設装置を取り出して保守点検作業を行うようにしていたので、作業効率が悪く、ランニングコストが増大する。
本発明は、上記課題(問題点)を解決し、収納容器内の空気の通気性が良く、収納容器の浮力が小さく、地下埋設設備周囲の内壁内の空間を有効利用でき、しかも、保守点検作業が楽な防水機能を備えた地下埋設設備を提供することを目的とする。
【0010】
【課題を解決するための手段】
本発明の防水機能を備えた地下埋設設備は、請求項1に記載のものでは、地下埋設装置に上方から収納容器を被せ、前記収納容器内部に密閉した空気により、地下埋設装置への浸水を防ぐようにした防水機能を備えた地下埋設設備において、前記収納容器を底浅の形状に形成し、当該収納容器により、前記地下埋設装置の頭部を覆うように収納する構成とした。
このようにすると、収納容器内の空気の通気性が良くなり熱や水分の放散が良好となる。また、収納容器自体の体積が小さく、収納容器の浮力対策が不要或いは簡単になる。更に、地下埋設設備周囲の内壁内の空間が広くなり、この空間を有効利用できるようになる。
【0011】
請求項2に記載の防水機能を備えた地下埋設設備では、上記地下埋設装置の中枢部分を、当該地下埋設装置の頭部近傍に集約する構成とした。
このように、地下埋設装置の回路基板やスイッチ等の中枢部分を当該装置の頭部上面か或いは頭部近傍の周辺部に集める構成とすると、地下埋設装置の保守点検の際には、地下埋設装置を設置するための穴用の蓋を開け、収納容器を地下埋設装置から取り外し、地上から保守点検作業を行うことができるようになる。
従って、従来のように地下埋設設備用の穴から収納容器ごと地下埋設装置をクレーン等により引き上げる必要が無くなり、保守点検作業が飛躍的に楽になり、当該防水機能を備えた地下埋設設備のランニングコストを大幅に低減することができる。
また、地下埋設装置の中枢部を頭部に集約することで、当該装置の胴体部の浸水が許容されるので、頭部のみを防水構造とするだけで良く、地下埋設設備の防水機能としては充分にその役割を果たす。
【0012】
請求項3に記載の防水機能を備えた地下埋設設備では、上記地下埋設装置の頭部に1又は2以上の通気孔を設けた構成とした。
このようにすると、上述したように地下埋設装置の頭部の浸水が防止できるので、頭部に通気孔を設けても地下埋設装置の内部への浸水はなく防水性を保つことができる。
一方、上記地下埋設装置の内部の通気性が良くなり、また、収納容器を底浅の形状としたことにより地下埋設装置の頭部の通気性が良くなっているので、地下埋設装置の稼働中に発生する熱の放散が一層良好となり、また、当該装置内部の結露を防止できるので、これらを原因とする故障を回避でき、保守点検作業を軽減することができる。
【0013】
請求項4に記載の防水機能を備えた地下埋設設備では、前記地下埋設装置を、電源ケーブルのコネクタを頭部上面に取り付けたマンホールポンプの制御盤とする構成とした。
このようにすると、電源ケーブルのコネクタをマンホールポンプの制御盤の頭部にとりつけることで浸水から保護することができ、それ以外の制御盤の胴体部分の浸水が許容できるようになるので、制御盤の頭部のみを収納した収納容器でも充分に制御盤を浸水から保護できるようになる。
【0014】
請求項5に記載の防水機能を備えた地下埋設設備では、上記地下埋設装置を、電源ケーブルのコネクタを頭部上面に横倒しに配設したマンホールポンプの制御盤とする構成とした。
曲げ剛性が大きい電源ケーブルを使用した場合、コネクタを垂直に配設すると、収納容器内での電源ケーブルは、一旦上向きに向けられ、それから収納容器の外部に送り出される構造となり、電源ケーブルの配線用の大きな空間が必要だったが、予めコネクタを制御盤頭部に横倒しに配設しておくと、このような空間が不要となり、収納容器自体をコンパクトなものとすることができる。
【0015】
請求項6に記載の防水機能を備えた地下埋設設備では、上記地下埋設装置を、電源ケーブルの接続部とする構成とした。
このようにすると、電源ケーブルの接続部も、浸水対策としては充分であり、底浅の形状の収納容器に収納されるため、収納容器内の空気の通気性が良くなり、水分の放散が良好となるため、接続部の腐食や絶縁不良を防止でき、接続部下方の地下埋設設備用の穴の内壁内の空間を有効利用できるようになる。或いは、地下埋設設備用の穴自体を小さくできるので、電源ケーブルの接続部の設置コストを低減することも可能である。
【0016】
【発明の実施の形態】
本発明の防水機能を備えた地下埋設設備の第1の実施の形態を図1を用いて説明する。
図1は、本発明の防水機能を備えた地下埋設設備1において、地下埋設装置をマンホールポンプの制御盤とした場合の本発明の概略構成を示す縦断正面図である。
本発明の防水機能を備えた地下埋設設備1は、図6に示す従来の防水機能を備えた地下埋設設備50と主な構成は同一で良く、収納容器55の形状を底浅の形状に変更した点にその構成上の特徴がある。
そこで、以下の本発明の防水機能を備えた地下埋設設備の説明において、従来のものと同一の構成については図6と同一の符号を付して、説明を省略した。
【0017】
図1において、2は制御盤で、本発明の防水機能を備えた地下埋設設備1の主体として地下に埋設される。当該制御盤頭部2a上面に電源ケーブル52のコネクタ3が取り付けられている。4は、本発明の地下埋設設備1に用いる収納容器で、上述したように図6に示す従来の防水機能を備えた地下埋設設備50の収納容器55と比較して底浅の形状に形成しており、制御盤頭部2a近傍を覆うように収納している。
5は、制御盤2の支持具で、制御盤2を内壁60に固定支持している。6は、ボルト等の固定具で、収納容器4を制御盤2に固定している。なお、固定具6は、制御盤2の保守点検の際に、制御盤2からの取り外しが簡単になるように、収納容器4上面に取り付けられ、また、地面が冠水した際に、収納容器4から固定具6挿入用の穴を通して空気が漏洩するのを防ぐために、固定具6と収納容器4の間にはパッキン6aが図示位置に装着されている。
【0018】
以上の構成において、本発明の防水機能を備えた地下埋設設備1を設置した地上が冠水し、排水設備62による排水が間に合わず、内壁60内部が水没した場合、制御盤2の胴体部分2bは浸水するが、制御盤頭部2a部分は、収納容器4内に閉じ込められた空気により収納容器4内部への水の浸入が妨げられるために、電源ケーブル52のコネクタ3部分の浸水を防止することができる。
従って、コネクタ3を制御盤頭部2aに取り付けたため、制御盤2の胴体2b部分が水没しても影響が小さく、制御盤頭部2aのみを収納する底浅の形状の収納容器4でも、充分に防水機能を発揮することができる。
【0019】
一方、上述したように、収納容器4の形状を底浅の形状としたために、内壁60内部が乾燥している通常状態においては、収納容器4内の空気の通気性が良くなり、制御盤2の運転時に発生する熱や、地中から放出される水分の放散が良好となり、かかる事由を原因としていた制御盤2の故障を防止することができる。更に、収納容器4自体の内容積が小さいので、地下埋設設備1が水没した場合でも、収納容器4の浮力対策は上述した固定具6による制御盤2への固定だけで済み、これとは別の浮力対策が不要となるか或いは当該浮力対策が簡略化でき、地下埋設設備1の製造コスト、設置コストを低減することが可能となる。
また、地下埋設設備1周囲の内壁60内の空間が収納容器4により狭められることがなく、他の装置を設置するなど、この空間を有効利用できる。
【0020】
更に、制御盤2の回路基板やスイッチ等の中枢部分を制御盤頭部2a上面か或いは制御盤頭部2a近傍周辺に集約する構成としておくと、保守点検等の大半のメンテナンス作業は、地下埋設設備用の穴HLの蓋61を開け、収納容器4を取り外すだけで、地上から作業を行うことができるようになる。
従って、図6に示す従来の防水機能を備えた地下埋設設備50では、上述したように、保守点検の際には、地下埋設設備用の穴HLから収納容器55ごと制御盤2を主体に構成される地下埋設装置51をクレーン等により引き上げ、それから収納容器55から地下埋設装置51を取り出して作業を行うようにしていたので作業効率が悪かったが、このような構成とすることで保守点検作業が飛躍的に楽になり、図1に示す、本発明の防水機能を備えた地下埋設設備1のランニングコストを大幅に低減することができる。
【0021】
本発明の防水機能を備えた地下埋設設備の第2の実施の形態を図2を用いて説明する。
図2は、地下埋設装置が電源ケーブルの接続部である場合の、本発明の防水機能を備えた地下埋設設備20の概略構成を示す縦断正面図である。
本発明の第2の実施の形態では、上記第1の実施の形態の図1で説明した地下埋設装置を制御盤2から電源ケーブル52の接続部27へ変更したもので、第1の実施の形態と同一の構成については図6に示す同一の符号を付し、説明を省略する。
図2において、第1の実施の形態で説明した場合同様に、地下埋設装置である電源ケーブル52の接続部27に、底浅の形状の収納容器4を上方から被せるように収納している。28は、接続部27の支持具である。
【0022】
この構成において、本発明の防水機能を備えた地下埋設設備20が水没しても、電源ケーブル52の接続部27の下方部は浸水するが、第1の実施の形態の説明で示した場合同様、接続部27は収納容器4内に閉じ込められた空気により冠水することはない。
また、底浅の形状の収納容器4としたため、第1の実施の形態の説明で示したものと同様に、収納容器4内の通気性が良くなるため、水分の放散が良くなり、接続部27が結露し、腐食や絶縁不良を起こす危険性も回避できるようになる。また、接続部27下方の地下埋設設備用の穴HLの内壁60内の空間を有効利用できるようになる。或いは、地下埋設設備用の穴HL自体を小さくできるので、電源ケーブル52の接続部27の設置コストを低減することも可能である。
【0023】
なお、上記第1及び第2の実施の形態において、地下埋設設備が水没した場合、水圧により収納容器4内の空気が圧縮されるが、上述したように地下埋設設備の設置深度は深い場合でも地下1〜2m程度と想定されているので、水圧による収納容器4内の空気の体積減少率は数〜十数%程度と目される。
そのため、収納容器4内部へのある程度の浸水はあるが、浸水から保護すべきコネクタ等の部分を制御盤等の地下埋設装置の上部に、予め取り付けておくようにすると、防水効果としては充分である。
【0024】
本発明の防水機能を備えた地下埋設設備は上記各実施の形態には限定されず、種々の変更、適用用途の改変が可能である。
例えば、図3に示すように、マンホールポンプの制御盤頭部2aに1又は2以上の通気孔39a、39bを設ける構成とすると、制御盤頭部2aの防水性は収納容器4により確保されているため、制御盤2の内部への浸水はなく、一方、制御盤2の内部の通気性が良くなり、また、収納容器4を底浅の形状としたことにより制御盤頭部2aの通気性が良くなっているので、制御盤2の稼働中に発生する熱の放散が一層良好となり、また、当該制御盤2内部の結露を防止できるので、これらを原因とする故障を回避でき、保守点検作業を軽減できる。
【0025】
また、図4に示すように、マンホールポンプの制御盤2の電源ケーブル52のコネクタ3を制御盤頭部2a上面に横倒しに配設した構成とすると、例えば曲げ剛性が大きい電源ケーブル52を使用した場合、コネクタ3を制御盤頭部2a上面に垂直に配設すると、収納容器4内での電源ケーブル52は、一旦上向きに向けられ、それから収納容器4の外部に送り出される構造となり、電源ケーブル52の配線用の大きな空間が必要となるが、予めコネクタ3を制御盤頭部2aに横倒しに配設しておくと、このような空間が不要となり、収納容器4自体をコンパクトなものとすることができる。
【0026】
また、図5に示すように、制御盤2から電源ケーブル52のコネクタ3を分離し、制御盤2を密封構造とし、電源ケーブル52のコネクタ3のみを収納容器4に収納するような構成への変更も考えられる。この場合は、内壁60内部が水没すると、制御盤2も冠水するが、収納容器4内は密閉された空気の圧力により浸水が妨げられ、電源ケーブル52のコネクタ3の冠水を防ぐことができる。
【0027】
この他、地下埋設装置の対象に相応して、収納容器の底浅の形状を変更して、上記各実施の形態で説明したものよりも収納容器の胴体部の長さを調節するようにしても良い。
また、上記各実施の形態では、制御盤等の装置を地下に埋設する構成で説明したが、本発明の防水機能を備えた地下埋設設備を地上に設置する装置に対して応用することも可能である。例えば、標高が海面以下のいわゆるゼロメートル地帯や、洪水の恐れのある地域、或いは河川敷のように冠水する可能性のある地域に設置する装置について本発明の防水機能を備えた地下埋設設備が適用できるのは勿論のことである。
【0028】
【発明の効果】
本発明の防水機能を備えた地下埋設設備は、上述のように構成したために以下のような優れた効果を有する。
(1)地下埋設装置の収納容器を底浅の形状とし、地下埋設装置の頭部を覆うように収納する構成としたため、収納容器内の通気性が良くなり、熱や水分の放散が良好となり、かかる事由を原因としていた制御盤等の地下埋設装置の故障を防止することができる。
(2)また、収納容器自体の内容積が小さいため、収納容器の浮力対策が不要或いは簡略化できる。
(3)更に、地下埋設設備用穴の内壁内の空間が広くなり、この空間を有効利用できるようになる。
(4)請求項2に記載したように、地下埋設装置の中枢部分を当該地下埋設装置の頭部近傍に集約するようにすると、地下埋設装置の保守点検の際には、埋設設備用の蓋を開け、収納容器を取り外すだけで保守点検を行うことができるようになるので、従来の場合に比べて保守点検作業が飛躍的に楽になり、ランニングコストを大幅に低減することができる。
(5)請求項3に記載したように、地下埋設装置の頭部に1又は2以上の通気孔を設ける構成とすると、収納容器を底浅の形状に形成した相乗効果により地下埋設装置の内部の通気性が一層良くなり、稼働中に発生する熱の放散が良好となり、また、当該装置内部の結露を防止できるので、これらを原因とする故障を回避でき、保守点検作業の労力を更に低減できる。
(6)請求項4に記載したように、地下埋設装置を電源ケーブルのコネクタを頭部上面に取り付けたマンホールポンプの制御盤とすると、電源ケーブルのコネクタを浸水から保護でき、それ以外の制御盤の胴体部分が浸水しても影響は小さいので防水対策としては充分であり、また、上記(1)乃至(5)に記載した効果が得られる。
(7)請求項5に記載したように、地下埋設装置を電源ケーブルのコネクタを頭部上面に横倒しに配設したマンホールポンプの制御盤とすると、曲げ剛性が大きい電源ケーブルを使用した場合、コネクタを垂直に配設すると、電源ケーブルの配線用の大きな空間が必要だが、このような空間が不要となり、収納容器自体をコンパクトなものとすることができる。
(8)請求項6に記載したように、地下埋設装置を、電源ケーブルの接続部とすると、上記(1)乃至(4)に記載した効果が得られ、腐食や絶縁不良等を防止できる。
(9)また、接続部下方の地下埋設設備用の穴の内壁内の空間を有効利用できるようになる。或いは、地下埋設設備用の穴自体を小さくできるので、電源ケーブルの接続部の設置コストを低減することも可能である。
【図面の簡単な説明】
【図1】本発明の防水機能を備えた地下埋設設備の第1の実施の形態を示す縦断正面図である。
【図2】本発明の防水機能を備えた地下埋設設備の第2の実施の形態を示す縦断正面図である。
【図3】本発明の防水機能を備えた地下埋設設備の他の実施の形態を示す縦断正面図である。
【図4】本発明の防水機能を備えた地下埋設設備の他の実施の形態を示す縦断正面図である。
【図5】本発明の防水機能を備えた地下埋設設備のコネクタ部分だけを収納容器で収納した実施の形態を示す縦断正面図である。
【図6】従来の防水機能を備えた地下埋設設備の概略構成を示す縦断正面図である。
【符号の説明】
1:本発明の防水機能を備えた地下埋設設備
2:制御盤(地下埋設装置)
2a:制御盤頭部
3:コネクタ
4:収納容器
27:電源ケーブルの接続部
52:電源ケーブル
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an underground buried facility having a waterproof function such as a control panel of a manhole pump, and more particularly to an improvement in a waterproof function of the facility.
[0002]
[Prior art]
Sewage such as factory / household drainage and rainwater is sent to sewage treatment plants using the height difference of sewerage, but it is difficult to maintain this height difference over a long distance, so at predetermined intervals. Sewage is pumped up by a manhole pump in the provided manhole to adjust the height difference.
Generally, a control panel for controlling the operation of a manhole pump is attached to a pillar such as concrete built on the ground. However, since the control panel requires a certain installation space, if the control panel is attached to a column built on the sidewalk, it may hinder the traffic of pedestrians and the like.
[0003]
For this reason, when installing the control panel of the manhole pump, there is a case where the mounting column of the control panel must be built on a nearby private land instead of being built on a sidewalk or the like. In this case, it is not always possible to obtain the consent of the owner of the private land, and in view of such circumstances, it has been proposed to bury the control panel of the manhole pump underground.
[0004]
However, when the control panel of the manhole pump is buried underground, it is necessary to take waterproof measures, such as making the control panel waterproof, in preparation for flooding due to heavy rain, etc. There is a problem that the use of a waterproof shield structure increases the manufacturing cost and installation cost of the control panel.
Therefore, as a solution to this, a storage container is placed over the underground buried device such as the control panel from above, and even if the hole for the underground buried facility is submerged by the air sealed in the storage container, flooding of the underground buried device is prevented. Underground buried facilities equipped with a waterproof function to prevent them are in practical use.
[0005]
The configuration of the conventional underground facility having a waterproof function will be described with reference to FIG.
FIG. 6 is a longitudinal sectional front view showing a schematic configuration of the underground burying equipment 50.
In the figure, reference numeral 51 denotes a control panel of a manhole pump (not shown), which is an underground burying device. The control panel 51 is supplied with power from a power source (not shown) via a power cable 52. Although not shown, the operation of the manhole pump is controlled in accordance with the water level in the manhole detected by the water level detector installed in the manhole.
Reference numeral 55 denotes a storage container for storing the control panel 51 from above, and a hole HL for embedding the control panel 51 is dug from the ground GR to a depth of about 1 to 2 m in the ground, and an inner peripheral surface of the hole HL. Further, an inner wall 60 is provided on the bottom surface for preventing collapse of earth and sand and preventing intrusion of groundwater or the like.
[0006]
Reference numeral 53 denotes a hook for lifting the control panel 51 of the manhole pump in the storage container 55 and installing it in the hole HL with a crane or the like. The control panel 51 is fixedly supported by a support 56 attached to a lower part of the storage container 55. Reference numeral 57 denotes a support for the storage container 55, which is fixedly supported so that the storage container 55 does not swing.
At the time of maintenance and inspection of the control panel 51, the storage container 55 is detached from the support base 57, and the control panel 51 is fixedly supported in the storage container 55 by the support tool 56, and the storage container 55 is hooked together with the storage container 55 by a crane or the like. Then, the control panel 51 is taken out of the storage container 55 and maintenance work such as maintenance and inspection is performed.
The inner wall 60 is covered with a lid 61 so as to prevent a fall of a pedestrian or the like and an inflow of rainwater or the like. Reference numeral 62 denotes a drainage facility including a drainage port 62a, a drainage pipe 62b, a gas intrusion prevention drain trap 62c, and the like, and discharges water entering the inside of the inner wall 60 to the manhole via the drainage pipe 62b.
[0007]
In the above configuration, even when the ground GR on which the underground burial facility is installed is flooded due to heavy rain, flood, or the like, the water infiltrates the inner wall 60, and the inside of the inner wall 60 is submerged without being drained by the drainage device 62 in time. Since the air in the storage container 55 is confined in the storage container 55 and does not leak out, it is possible to prevent water from entering by the internal pressure of the air and to prevent the main part of the control panel 51 from being flooded. it can.
Also, since there is a portion of the lower part of the control panel 51 that requires insulation such as the connector 58 with the power cable 52, the storage container 55 is almost completely covered including the lower part of the control panel 51. It has a deep bottom shape to accommodate the control panel 51.
[0008]
Therefore, the control panel 51 is protected from flooding by a simple method of simply covering the storage container 55 from above and covering the entire control panel 51 without having a completely waterproof structure such as covering the control panel 51 with a special waterproof member. be able to. With the underground burying equipment having such a waterproof structure, the installation cost of the underground burying device can be significantly reduced, and the underground burying device such as the control panel 51 can be reliably prevented from being flooded.
[0009]
[Problems to be solved by the invention]
By the way, as described above, in a conventional underground buried facility having a waterproof function, the storage container for storing the underground buried device from above is also housed in the lower part of the underground buried device so as to almost completely cover the underground buried device. The bottom was deep in shape. However, when the storage container has this shape, the following problem occurs.
(1) The air permeability of the storage container deteriorates, and the heat generated during operation of the underground burying equipment and the dissipation of moisture released from the ground to the outside of the storage container deteriorate, and the underground burying It may cause a failure of the device.
(2) The internal volume of the storage container itself is large, so that the buoyancy of the storage container when the underground buried facility is submerged becomes large, and buoyancy measures are important. If this buoyancy countermeasure is neglected, when the inside of the inner wall is submerged, the storage container may rise upward, the underground burying device may be submerged, and the top lid may be pushed up to harm pedestrians passing on the ground.
If a method of increasing the weight of the storage container is taken as a measure to cope with this, there arises a problem that the manufacturing cost of the storage container and the installation cost of the underground burying device increase.
(3) Since the space in the inner wall around the underground buried facility is narrowed by the storage container having a deep bottom, this space cannot be effectively used.
(4) When performing maintenance and inspection of the underground buried equipment, the underground buried equipment was lifted together with the storage container by a crane or the like, and then the underground buried equipment was removed from the storage container to perform the maintenance and inspection work. Bad, running costs increase.
The present invention solves the above-mentioned problems (problems), has good air permeability in the storage container, has low buoyancy of the storage container, can effectively use the space in the inner wall around the underground buried facility, and furthermore, performs maintenance and inspection. An object of the present invention is to provide an underground burial facility having a waterproof function that facilitates work.
[0010]
[Means for Solving the Problems]
In the underground burying equipment having a waterproof function of the present invention, in the device according to claim 1, a storage container is put on the underground burying device from above, and the underground burying device is flooded with air sealed inside the storage container. In an underground burial facility having a waterproof function, the storage container is formed to have a shallow bottom shape, and the storage container is stored so as to cover the head of the underground burying device.
In this case, the air permeability of the storage container is improved, and heat and moisture are radiated well. Further, the volume of the storage container itself is small, and measures for buoyancy of the storage container are unnecessary or simple. Further, the space inside the inner wall around the underground buried facility is widened, and this space can be used effectively.
[0011]
The underground burying equipment having a waterproof function according to claim 2 is configured such that a central portion of the underground burying device is integrated near the head of the underground burying device.
As described above, if the central portion of the circuit board, switch, and the like of the underground buried device is collected on the upper surface of the head of the device or on a peripheral portion near the head, the underground buried device is required for maintenance and inspection of the underground buried device. The lid for the hole for installing the device is opened, the container is removed from the underground buried device, and the maintenance and inspection work can be performed from the ground.
Therefore, there is no need to lift the underground burying device together with the storage container from the hole for the underground burying equipment by using a crane or the like, which makes maintenance and inspection work much easier, and the running cost of the underground burying equipment having the waterproof function is reduced. Can be greatly reduced.
In addition, since the central part of the underground buried device is concentrated on the head, the body of the device can be flooded, so only the head needs to have a waterproof structure. It plays its part well.
[0012]
In the underground facility having a waterproof function according to the third aspect, one or two or more ventilation holes are provided at the head of the underground apparatus.
In this way, since the head of the underground buried device can be prevented from being flooded as described above, even if a vent hole is provided in the head, the inside of the underground buried device is not flooded and the waterproof property can be maintained.
On the other hand, since the inside of the underground buried device has improved air permeability, and the storage container has a shallow bottom shape, the air permeability of the head of the underground buried device has been improved. Since the heat generated in the apparatus can be more efficiently dissipated, and dew condensation inside the apparatus can be prevented, troubles caused by these can be avoided, and maintenance work can be reduced.
[0013]
According to a fourth aspect of the present invention, in the underground burying equipment having a waterproof function, the underground burying device is configured as a control panel of a manhole pump in which a power cable connector is mounted on an upper surface of a head.
In this way, the power cable connector can be attached to the head of the control panel of the manhole pump to protect it from inundation, and other parts of the control panel can be tolerated by water. The control panel can be sufficiently protected from flooding even with the storage container storing only the head of the control panel.
[0014]
According to a fifth aspect of the present invention, in the underground burying equipment having a waterproof function, the underground burying device is configured as a control panel of a manhole pump in which a connector of a power cable is disposed on the upper surface of the head sideways.
When a power cable with high bending rigidity is used, if the connector is arranged vertically, the power cable inside the storage container will be directed upward once and then sent out of the storage container, and the power cable will be used for wiring the power cable. However, if the connector is disposed on the control panel head sideways in advance, such a space becomes unnecessary, and the storage container itself can be made compact.
[0015]
In the underground burying equipment having a waterproof function according to claim 6, the underground burying device is configured to be a connection portion of a power cable.
In this way, the connection portion of the power cable is also sufficient as a countermeasure against water intrusion, and is stored in a storage container having a shallow shape, so that the air permeability in the storage container is improved, and moisture is easily diffused. Therefore, corrosion and insulation failure of the connection portion can be prevented, and the space in the inner wall of the hole for the underground burying equipment below the connection portion can be effectively used. Alternatively, since the hole itself for the underground buried facility can be reduced, it is also possible to reduce the installation cost of the connection part of the power cable.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
A first embodiment of an underground burial facility having a waterproof function according to the present invention will be described with reference to FIG.
FIG. 1 is a vertical sectional front view showing a schematic configuration of the present invention when an underground burying device is a control panel of a manhole pump in the underground burying equipment 1 having a waterproof function of the present invention.
The underground buried facility 1 having a waterproof function of the present invention may have the same main configuration as the conventional underground buried facility 50 having a waterproof function shown in FIG. 6, and the shape of the storage container 55 is changed to a shallow bottom shape. There is a feature in the configuration in the point which has been done.
Therefore, in the following description of the underground burial equipment having a waterproof function of the present invention, the same components as those of the conventional one are denoted by the same reference numerals as in FIG. 6 and the description is omitted.
[0017]
In FIG. 1, reference numeral 2 denotes a control panel, which is buried underground as a main body of the underground burying equipment 1 having the waterproof function of the present invention. The connector 3 of the power cable 52 is attached to the upper surface of the control panel head 2a. Reference numeral 4 denotes a storage container used for the underground burial equipment 1 of the present invention, which is formed in a shape having a shallower bottom than the storage container 55 of the conventional underground burial equipment 50 having a waterproof function shown in FIG. And housed so as to cover the vicinity of the control panel head 2a.
Reference numeral 5 denotes a support for the control panel 2, which fixedly supports the control panel 2 on the inner wall 60. Reference numeral 6 denotes a fixture such as a bolt, which fixes the storage container 4 to the control panel 2. Note that the fixture 6 is attached to the upper surface of the storage container 4 so that it can be easily removed from the control panel 2 at the time of maintenance and inspection of the control panel 2. In order to prevent air from leaking through the hole for inserting the fixing device 6 from above, a packing 6a is mounted at the position shown in the figure between the fixing device 6 and the storage container 4.
[0018]
In the above configuration, when the ground on which the underground buried facility 1 having the waterproof function of the present invention is installed is submerged, the drainage by the drainage facility 62 cannot be made in time, and the inside of the inner wall 60 is submerged, the body part 2b of the control panel 2 becomes The control panel head 2a prevents water from entering the connector 3 of the power cable 52 because air trapped in the container 4 prevents water from entering the inside of the container 4. Can be.
Therefore, since the connector 3 is attached to the control panel head 2a, even if the body 2b of the control panel 2 is submerged, the influence is small, and even the storage container 4 having a shallow bottom for storing only the control panel head 2a is sufficient. It can exhibit a waterproof function.
[0019]
On the other hand, as described above, since the shape of the storage container 4 is made shallow, the air permeability of the storage container 4 is improved in the normal state where the inside of the inner wall 60 is dry, and the control panel 2 The heat generated at the time of operation and the dissipation of moisture released from the ground are improved, and the failure of the control panel 2 caused by such a reason can be prevented. Further, since the internal volume of the storage container 4 itself is small, even if the underground buried facility 1 is submerged, the measures for buoyancy of the storage container 4 need only be fixed to the control panel 2 by the above-described fixing tool 6. Or the buoyancy measures can be simplified, and the manufacturing cost and installation cost of the underground buried facility 1 can be reduced.
In addition, the space inside the inner wall 60 around the underground buried facility 1 is not narrowed by the storage container 4, and this space can be effectively used by installing other devices.
[0020]
Furthermore, if the central parts of the circuit board and switches of the control panel 2 are arranged on the upper surface of the control panel head 2a or in the vicinity of the control panel head 2a, most maintenance work such as maintenance and inspection is performed underground. The work can be performed from the ground simply by opening the lid 61 of the hole HL for equipment and removing the storage container 4.
Accordingly, in the conventional underground buried facility 50 having a waterproof function shown in FIG. 6, as described above, the control panel 2 is mainly configured together with the storage container 55 from the hole HL for the underground buried facility at the time of maintenance and inspection. The work efficiency was low because the underground burying device 51 to be used was lifted by a crane or the like, and then the underground burying device 51 was taken out from the storage container 55 to perform the work. Is greatly reduced, and the running cost of the underground facility 1 having the waterproof function of the present invention shown in FIG. 1 can be greatly reduced.
[0021]
A second embodiment of the underground burial facility having a waterproof function according to the present invention will be described with reference to FIG.
FIG. 2 is a longitudinal sectional front view showing a schematic configuration of the underground burying equipment 20 having the waterproof function of the present invention when the underground burying apparatus is a connection portion of a power cable.
In the second embodiment of the present invention, the underground burying device described in the first embodiment with reference to FIG. 1 is changed from the control panel 2 to the connection portion 27 of the power cable 52. The same reference numerals as in FIG. 6 denote the same components as in the embodiment, and a description thereof will be omitted.
In FIG. 2, similarly to the case described in the first embodiment, the storage container 4 having a shallow bottom shape is housed in the connection portion 27 of the power cable 52 which is an underground burying device so as to cover it from above. Reference numeral 28 denotes a support for the connecting portion 27.
[0022]
In this configuration, even if the underground buried facility 20 having the waterproof function of the present invention is submerged, the lower part of the connection portion 27 of the power cable 52 is flooded, but the same as described in the description of the first embodiment. The connecting portion 27 is not flooded by the air trapped in the storage container 4.
Further, since the storage container 4 has a shallow bottom shape, the air permeability in the storage container 4 is improved, as in the case of the first embodiment, so that the water is easily diffused and the connection portion is formed. It is also possible to avoid the danger of dew condensation and corrosion or insulation failure. Further, the space in the inner wall 60 of the hole HL for the underground burial facility below the connection portion 27 can be effectively used. Alternatively, the hole HL itself for the underground buried facility can be made smaller, so that the installation cost of the connection portion 27 of the power cable 52 can be reduced.
[0023]
In the first and second embodiments, when the underground facility is submerged, the air in the storage container 4 is compressed by the water pressure. However, as described above, even if the installation depth of the underground facility is deep, Since it is assumed to be about 1 to 2 m underground, the volume reduction rate of air in the storage container 4 due to water pressure is expected to be about several to several tens of percent.
For this reason, although there is some inundation into the inside of the storage container 4, if a portion of the connector or the like to be protected from inundation is mounted in advance on an underground burying device such as a control panel, the waterproof effect is sufficient. is there.
[0024]
The underground facility having a waterproof function of the present invention is not limited to the above embodiments, and various changes and modifications of the application can be made.
For example, as shown in FIG. 3, if one or more ventilation holes 39 a and 39 b are provided in the control panel head 2 a of the manhole pump, the waterproofness of the control panel head 2 a is ensured by the storage container 4. Therefore, there is no water infiltration into the inside of the control panel 2, on the other hand, the air permeability inside the control panel 2 is improved, and the storage container 4 has a shallow bottom so that the air permeability of the control panel head 2 a can be improved. The heat generated during the operation of the control panel 2 is further improved, and dew condensation inside the control panel 2 can be prevented. Work can be reduced.
[0025]
Further, as shown in FIG. 4, when the connector 3 of the power cable 52 of the control panel 2 of the manhole pump is arranged sideways on the upper surface of the control panel head 2a, for example, the power cable 52 having high bending rigidity is used. In this case, when the connector 3 is vertically disposed on the upper surface of the control panel head 2a, the power cable 52 in the storage container 4 is directed upward once and then sent out of the storage container 4, so that the power cable 52 However, if the connector 3 is disposed on the control panel head 2a sideways in advance, such a space becomes unnecessary and the storage container 4 itself can be made compact. Can be.
[0026]
As shown in FIG. 5, the connector 3 of the power cable 52 is separated from the control panel 2 so that the control panel 2 has a sealed structure and only the connector 3 of the power cable 52 is stored in the storage container 4. Changes are possible. In this case, when the inside of the inner wall 60 is submerged, the control panel 2 is also flooded. However, the inside of the storage container 4 is prevented from being flooded by the pressure of the sealed air, and the flooding of the connector 3 of the power cable 52 can be prevented.
[0027]
In addition, according to the object of the underground buried device, the shape of the shallow bottom of the storage container is changed so that the length of the body of the storage container is adjusted more than that described in each of the above embodiments. Is also good.
Further, in each of the above-described embodiments, the description has been given of the configuration in which the device such as the control panel is buried underground. It is. For example, the underground buried facility having the waterproof function of the present invention is applied to a device installed in a so-called zero meter zone whose altitude is below the sea level, in a region where there is a possibility of flooding, or in a region where there is a possibility of flooding such as a riverbed. Of course you can.
[0028]
【The invention's effect】
The underground burial facility having a waterproof function of the present invention has the following excellent effects due to the configuration described above.
(1) Since the storage container of the underground buried device has a shallow bottom shape and is stored so as to cover the head of the underground buried device, the air permeability in the storage container is improved, and heat and moisture can be radiated well. In addition, it is possible to prevent the failure of the underground burying device such as the control panel due to such a reason.
(2) In addition, since the internal volume of the storage container itself is small, it is unnecessary or simple to take measures against buoyancy of the storage container.
(3) Further, the space in the inner wall of the hole for underground buried facilities is widened, and this space can be used effectively.
(4) As described in claim 2, when the central part of the underground buried device is concentrated near the head of the underground buried device, the lid for the buried facility is used for maintenance and inspection of the underground buried device. It is possible to perform maintenance and inspection simply by opening the storage container and removing the storage container, so that maintenance and inspection work is greatly facilitated as compared with the conventional case, and running costs can be greatly reduced.
(5) When one or two or more ventilation holes are provided at the head of the underground buried device as described in claim 3, the inside of the underground buried device is formed by a synergistic effect of forming the storage container into a shallow bottom shape. The air permeability of the equipment is further improved, the heat generated during operation is better dissipated, and dew condensation inside the equipment can be prevented, so that failures caused by these can be avoided, and the labor for maintenance and inspection work is further reduced. it can.
(6) As described in claim 4, when the underground equipment is a control panel of a manhole pump in which a connector of a power cable is mounted on the upper surface of the head, the connector of the power cable can be protected from flooding and other control panels Even if the body part is submerged in water, the effect is small, so that it is sufficient as a waterproof measure, and the effects described in the above (1) to (5) can be obtained.
(7) As described in claim 5, when the underground buried device is a control panel of a manhole pump in which a connector of a power cable is disposed on the top surface of the head sideways, when a power cable having high bending rigidity is used, When the is vertically arranged, a large space for wiring the power cable is required, but such a space is not required, and the storage container itself can be made compact.
(8) As described in claim 6, when the underground burying device is a connection portion of a power cable, the effects described in the above (1) to (4) can be obtained, and corrosion and insulation failure can be prevented.
(9) Also, the space in the inner wall of the hole for the underground burial facility below the connection portion can be effectively used. Alternatively, since the hole itself for the underground buried facility can be reduced, it is also possible to reduce the installation cost of the connection part of the power cable.
[Brief description of the drawings]
FIG. 1 is a vertical sectional front view showing a first embodiment of an underground burial facility having a waterproof function according to the present invention.
FIG. 2 is a vertical sectional front view showing a second embodiment of the underground burial facility having a waterproof function of the present invention.
FIG. 3 is a vertical sectional front view showing another embodiment of the underground burial facility having a waterproof function of the present invention.
FIG. 4 is a longitudinal sectional front view showing another embodiment of the underground burial facility having a waterproof function of the present invention.
FIG. 5 is a longitudinal sectional front view showing an embodiment in which only a connector portion of the underground burial facility having a waterproof function of the present invention is stored in a storage container.
FIG. 6 is a vertical sectional front view showing a schematic configuration of a conventional underground facility having a waterproof function.
[Explanation of symbols]
1: Underground burying equipment having waterproof function of the present invention 2: Control panel (underground burying equipment)
2a: Control panel head 3: Connector 4: Storage container 27: Power cable connection 52: Power cable

Claims (6)

地下埋設装置に上方から収納容器を被せ、前記収納容器内部に密閉した空気により、地下埋設装置への浸水を防ぐようにした防水機能を備えた地下埋設設備において、
前記収納容器を底浅の形状に形成し、当該収納容器により、前記地下埋設装置の頭部を覆うように収納したことを特徴とする防水機能を備えた地下埋設設備。
Underground burying equipment equipped with a waterproof function to cover the underground buried device from above and to prevent infiltration into the underground buried device by air sealed inside the storage container,
An underground burying facility having a waterproof function, wherein the storage container is formed in a shape with a shallow bottom, and the storage container is stored so as to cover a head of the underground burying device.
上記地下埋設装置の中枢部分を、当該地下埋設装置の頭部近傍に集約したことを特徴とする請求項1に記載の防水機能を備えた地下埋設設備。The underground burying equipment having a waterproof function according to claim 1, wherein a central portion of the underground burying apparatus is integrated near a head of the underground burying apparatus. 上記地下埋設装置の頭部に1又は2以上の通気孔を設けたことを特徴とする請求項1又は2に記載の防水機能を備えた地下埋設設備。The underground buried facility having a waterproof function according to claim 1 or 2, wherein one or more air holes are provided in a head of the underground buried apparatus. 上記地下埋設装置を、電源ケーブルのコネクタを頭部上面に取り付けたマンホールポンプの制御盤としたことを特徴とする請求項1乃至3のいずれかに記載の防水機能を備えた地下埋設設備。The underground facility with waterproof function according to any one of claims 1 to 3, wherein the underground facility is a control panel of a manhole pump in which a connector of a power cable is mounted on an upper surface of a head. 上記地下埋設装置を、電源ケーブルのコネクタを頭部上面に横倒しに配設したマンホールポンプの制御盤としたことを特徴とする請求項1乃至3のいずれかに記載の防水機能を備えた地下埋設設備。The underground burying device having a waterproof function according to any one of claims 1 to 3, wherein the underground burying device is a control panel of a manhole pump in which a connector of a power cable is disposed on the top surface of the head sideways. Facility. 上記地下埋設装置を、電源ケーブルの接続部としたことを特徴とする請求項1又は2に記載の防水機能を備えた地下埋設設備。3. The underground installation having a waterproof function according to claim 1, wherein the underground installation is a connection portion of a power cable.
JP20388897A 1997-07-15 1997-07-15 Underground burial equipment with waterproof function Expired - Fee Related JP3575235B2 (en)

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JP20388897A JP3575235B2 (en) 1997-07-15 1997-07-15 Underground burial equipment with waterproof function

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KR100660089B1 (en) * 2000-06-27 2006-12-20 주식회사 케이티 Underground facilities suitable for receiving electronic equipment
JP2003034975A (en) * 2001-07-25 2003-02-07 Shinko Electric Co Ltd Control equipment and sewage equipment

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