JP4359378B2

JP4359378B2 - Housing for underground structures

Info

Publication number: JP4359378B2
Application number: JP2000160955A
Authority: JP
Inventors: 健司清水; 修梅本
Original assignee: Hinode Ltd
Current assignee: Hinode Ltd
Priority date: 2000-05-30
Filing date: 2000-05-30
Publication date: 2009-11-04
Anticipated expiration: 2020-05-30
Also published as: JP2001336169A

Description

【０００１】
【発明の属する技術分野】
この発明は、外筒体と、この外筒体に螺合される内筒体と、この内筒体に蝶番金具を介して連結され内筒体の上部開口を開閉可能とする蓋本体とを備えた地下構造物用筐体に関するものである。
【０００２】
【従来の技術】
従来より、地下構造物用筐体として、例えば、実公昭６３−９６５５号公報に記載された仕切弁筐が知られている。この仕切弁筐は、外筒体の内側に内筒体を螺合させ、この内筒体に形成した支持枠にナットを収納させるとともに、このナットにボルトを内筒体の内面側より螺合し、このボルトの先端を外筒体の内面に圧接して両筒体を一体状にする固定装置を設けたもので、先ず内筒体を回転させてその上面を路面に一致させて設置し、その後外筒体に対して内筒体が緩まないように固定装置で内筒体を固定することができるようにしたものである。
【０００３】
一方、内筒体には、その内周上部の所定位置に蝶番受座を形成し、この蝶番受座に装着した蝶番金具を介して蓋本体を開閉可能に連結しており、その蓋本体の表面には、地下の管路の流れ方向が矢印で表示してあったり、方向性を有した模様が描かれている場合がある。
【０００４】
【発明が解決しようとする課題】
しかしながら、上記した従来の仕切弁筐にあっては、摩耗した路面や本復旧時の路面に内筒体の上面を一致させるために内筒体を回転させると、内筒体の内周上部に形成した蝶番受座も回転するため、蓋本体の表面に表示させた矢印や模様の方向が施工前に対して異なってしまう、という問題があった。
【０００５】
本発明は、上述の点に鑑みてなされたもので、内筒体が緩むのを防止するとともに、蓋本体の表面に表示した矢印や模様の方向を所望の方向に一致させることができる地下構造物用筐体を提供することを目的とする。
【０００６】
【課題を解決するための手段】
上記目的を達成するために、請求項１に記載の発明は、外筒体と、この外筒体に螺合される内筒体と、この内筒体に蝶番金具を介して連結され内筒体の上部開口を開閉可能とする蓋本体とを備えた地下構造物用筐体において、上記内筒体は、その内周面に周方向に複数形成した受け部と、この受け部のいずれかを選択して装着しその装着時には外筒体の内周面に当接することにより内筒体を外筒体に固定する可動部材とを備え、上記可動部材は、上方に延設した柱状部を備え、この柱状部の上端には蝶番受座を形成して上記蝶番金具を装着可能とした、ことを特徴としている。
【０００７】
このような構成としたことによって、可動部材を受け部に装着する際に、施工前と同一方向に蝶番受座が位置するように、受け部を選択することができる。その選択した受け部に可動部材を装着し、その可動部材を外筒体の内周面に当接させて内筒体を外筒体に固定することで、内筒体が緩むのを防止することができ、また内筒体の内周上部に臨んでいる蝶番受座に装着した蝶番金具を介して蓋本体を連結することで、蓋本体の表面に表示した矢印や模様の方向を所望の方向に一致させることができる。
【０００８】
【発明の実施の形態】
本発明にあっては、受け部の開口部を上下二箇所に形成するとともに、可動部材を側面視で略コ字状とし、内筒体を上下２箇所で固定するようにしたことにより、蓋本体の向きを施工前と同一方向とすることができるだけでなく、内筒体の緩みを確実に防止することができる。
【０００９】
また、本発明にあっては、内筒体の内周面に突設させた取付座の上面を可動部材が摺動するように構成したことにより、蓋本体の向きを施工前と同一方向とすることができるだけなく、装着が容易となり、また装着時に可動部材が取付座から落下するのを防止することができる。
【００１０】
さらに、本発明にあっては、内筒体の内周面に、蝶番受座を位置決めする位置決め部を各受け部の上方に形成しているので、蝶番受座を位置決めすることで可動部材を確実に装着することができるとともに、蓋本体の開閉動作を安定して行うことができる。
【００１１】
【実施例】
以下に本発明の実施例を図面に基づいて詳細に説明する。先ず第１実施例を図１〜図６を用いて説明する。
【００１２】
図１は本発明の地下構造物用筐体の構成を示す縦断面図、図２は内筒体の構成を示す図で、（Ａ）は平面図、（Ｂ）は同図（Ａ）のＩ−Ｉ線断面図、図３は外筒体の構成を示す図で、（Ａ）は平面図、（Ｂ）は同図（Ａ）のＩＩ−ＩＩ線断面図である。図１において、地下構造物用筐体１は、外筒体２と、外筒体２に螺合した内筒体３と、内筒体３の受け部５に装着した可動部材６とを備え、前記可動部材６の先端に形成した押圧部６５，６６を外筒体２の内周面に当接させることにより、内筒体３を固定している。前記外筒体２には、その内周面にピッチの粗い雌ねじ部２１を隆設し、外周面の下端にはフランジ２２を形成している。
【００１３】
また、外筒体２の内周面には、雌ねじ部２１を軸線方向に切欠いた、上端から下端に達する等幅の縦溝部２３を、６０°間隔で６箇所形成している。
【００１４】
一方、内筒体３には、その内周面の下部に受け部５を６０゜間隔で６箇所形成するとともに、外周面の下部にはピッチの粗い雄ねじ部３１を隆設している。前記受け部５のそれぞれは、内筒体３の上位置に内外に貫通させた開口部としての上開口部５１と、下位置に内外に貫通させるとともに下方を開放させた開口部としての下開口部５２と、下開口部５２の上端縁に内筒体３の内周面側に突設させた取付座５３とを備えている。この取付座５３には、貫通させたボルトの軸線が内筒体３の上部開口７を貫通するように、そのボルトの径と略同径の貫通孔５３１を穿設している。また、取付座５３の下面は、外方に向けて、上り傾斜するように形成されている。さらに、上開口部５１の上面も、取付座５３の下面と同様に、外方に向けて上り傾斜するように形成されている。
【００１５】
また、内筒体３の内周面の上部には、受け部５に対応させて、位置決め部５４が突出して形成され、後述する可動部材６の柱状部６Ｂの上端に形成した蝶番受座６８の位置決めを行うようにしている。
【００１６】
さらに、内筒体３の内周面上部にはテーパ面を有する蓋受け部３２を形成し、内筒体３の上部開口７を開閉可能とする蓋本体４を蝶番金具９を介して嵌合支持するようにしている。
【００１７】
図４は可動部材６の構成を示しており、（Ａ）は正面図、（Ｂ）は縦断面図、（Ｃ）は背面図、（Ｄ）は平面図、（Ｅ）は同図（Ｂ）のＩＩＩ−ＩＩＩ線断面図で、この可動部材６は、図に示すように、下半部６Ａとその上方の柱状部６Ｂとからなっている。
【００１８】
下半部６Ａは、上腕部６１と下腕部としての摺動部６２とその双方を連結する連結部６３とにより側面視略コ字状に形成され、前記上腕部６１と摺動部６２とにはそれぞれボルト１０の径より径大の緩挿孔６１１，６２１が穿設されている。摺動部６２は側面視で先端側が肉厚となるように形成されており、その上面は、受け部５の取付座５３の下面に沿って摺動可能とさせている。摺動部６２の下側にはナットを回転不能に保持する保持部としてのナット収納室６４が形成され、このナット収納室６４の下壁６４ａにはボルト先端が貫通する貫通孔６４２が穿設されている。また、上腕部６１の先端には外筒体２の縦溝部２３に当接させる押圧部６５を形成し、さらにこの押圧部６５の下面に突起６１２を形成しており、可動部材６を受け部５に装着して上腕部６１の先端の押圧部６５を内筒体３の上開口部５１に挿入したとき、この突起６１２が上開口部５１の下端縁に係合するようになっている。なお、摺動部６２の先端にも外筒体２の縦溝部２３に当接させる押圧部６６を形成している。
【００１９】
一方、柱状部６Ｂは、下部を二股状として上腕部６１から上方に延設されており、この柱状部６Ｂの上端には蝶番受座６８が形成されている。
【００２０】
この蝶番受座６８は、図４に示すように、縦断面がフック状となるように形成した軸受部６８２が溝６８３を介して対向するように形成されており、この軸受部６８２の上端縁には切欠部６８１が形成されている。そして、図１に示すように、蝶番金具９の蓋側ヒンジ９ａを蓋本体４のヒンジ貫通孔４１に軸支させ、他方の受枠側ヒンジ９ｂを切欠部６８１から挿入して軸受部６８２で軸支させている。したがって、蓋本体４はこの蝶番金具９と蝶番受座６８との組み合わせにより、内筒体３に対して開閉可能に連結される。
【００２１】
上記構成において、内筒体３を外筒体２に装着し固定するには、先ず内筒体３を外筒体２に挿入して螺合させた後、これを回転させて昇降させ、その上端面を路面高さに合わせる。
【００２２】
このとき、外筒体２の縦溝部２３に受け部５が一致していないときには、最も近接した縦溝部２３に受け部５が一致するように内筒体３を少し回転させる。このように位置合わせを行った後、蓋本体４の表面に表示された管路の流れ方向や模様の向きが適正となるように、可動部材６を装着する受け部５を選択する。
【００２３】
図５および図６は受け部５に可動部材６を装着し内筒体３を外筒体２に固定する手順を示す図である。受け部５に可動部材６を装着するには、先ず図５に示すように、ナット収納室６４にナット１５を収納した状態で可動部材６を受け部５に近づけ、受け部５の上開口部５１および下開口部５２のそれぞれに、可動部材６の上腕部６１および摺動部６２の押圧部６５，６６を挿入する。そして、取付座５３の下面に摺動部６２の上面を臨ませた状態で、図６（Ａ）に示すように、六角穴付のボルト１０を上腕部６１の緩挿孔６１１、取付座５３の貫通孔５３１および摺動部６２の緩挿孔６２１に挿入し、その先端をナット収納室６４のナット１５に螺合させる。この状態で可動部材６は緩やかに受け部５に装着される。
【００２４】
次に、地上から内筒体３の内部に六角レンチ１８を挿入してその先端をボルト１０の六角穴に入れ、その軸線周りに旋回することにより、ボルト１０をナット１５に螺合する。
【００２５】
続いて、ボルト１０を回転させていくと、図６（Ｂ）に示すように、ボルト１０の先端がナット収納室６４の貫通孔６４２から突き出るようになり、ボルト１０の段差部１０ａが取付座５３の上面を圧接し、またナット１５が摺動部６２を押し上げるので、取付座５３の下面と摺動部６２の上面との間隔が狭くなる。さらにボルト１０を回転させると、摺動部６２は外方を肉厚としていることから、ボルト１０を締め付ける分力は外方に作用するため、取付座５３の下面に沿って摺動部６２が外筒体２側に押し出されるように移動する。その結果、摺動部６２の先端に形成した押圧部６６が外筒体２の内周面に形成した縦溝部２３の溝面に当接する。また上腕部６１も、斜め上方に押し上げられて上開口部５１の傾斜した上面に沿って滑りながら移動し、その先端の押圧部６５が外筒体２の縦溝部２３の溝面に当接する（図６（Ｃ））。このとき、緩挿孔６１１，６２１は、可動部材６が摺動して押圧部６５，６６が縦溝部２３の溝面に当接可能となる大きさに形成されている。
【００２６】
一方、この可動部材６の動きに応じて、柱状部６Ｂの上端に形成した蝶番受座６８も、図６（Ａ）および図６（Ｂ）に示すように、少しだけ上方に移動し、最終的に、柱状部６Ｂの軸受部６８２の間に形成された溝６８３内に、内筒体３の内周面に形成した位置決め部５４が位置するようになり、柱状部６Ｂはその位置決め部５４で位置決めされ、直立した姿勢で保持される（図６（Ｃ））。
【００２７】
なお、上記では、内筒体３を外筒体２に固定する場合について説明したが、内筒体３を再度路面高さに合わせる必要が生じた場合は、蓋本体４を開蓋して蝶番金具９を蝶番受座６８からはずし、六角レンチ１８を回転させてボルト１０を緩ませ、可動部材６を内筒体３の受け部５から外した後、内筒体３を回転させて昇降させ、路面高さに合わせるようにすればよい。
【００２８】
以上述べたように、この実施例では、受け部５を内筒体３の内周面に周方向に複数形成し、また可動部材６の柱状部６Ｂに蝶番受座６８を設けるようにしたので、蝶番受座６８の位置を受け部５を選択することで適切な位置に持ってくることができ、したがって、蓋本体４に管路の流れ方向や模様等が表示されている場合でも、その蝶番受座６８に蝶番金具９を介して蓋本体４を連結することで、蓋本体４の表面に表示した矢印や模様の方向を所望の方向に一致させることができる。
【００２９】
また、内筒体３が緩むのを防止するためのボルト１０の軸線が内筒体３の上部開口７を貫通するようにしたので、地上から六角レンチ１８を入れその軸線周りに連続して旋回させることで、ボルト１０の締め付け作業を行うことができる。したがって、ボルト締めの作業や、あるいはその逆にボルトを外すときの作業を極めて簡単に行うことができ、作業効率を大幅に向上させることができる。
【００３０】
また、ボルト１０を締め付けていくと、摺動部６２は外方を肉厚としていることから、ボルト１０を締め付ける分力は外方に作用するため、摺動部６２が外方に移動する。したがって、可動部材６の上腕部６１と摺動部６２の押圧部６５，６６が外筒体２に当接し押圧した状態で固定されるので、内筒体３はこの可動部材６を介して外筒体２に固定され、内筒体３が緩んでガタついたり、回転してしまうことを確実に防止することができる。
【００３１】
また、上腕部６１の押圧部６５の下面に突起６１２を形成したので、ボルト１０を緩めたり外したりしても、この突起６１２が内筒体３の上開口部５１の下端縁に係合し、可動部材６が受け部５から落下するのを防止することができる。
【００３２】
上記の説明では、柱状部６Ｂの上端にフック状の蝶番受座６８を設けるようにしたが、この蝶番受座は、蓋本体４を開閉可能に連結できるのであれば、任意の形状に形成することができる。例えば図７に示すように、蝶番受座６８ａを円環状に形成してもよい。この場合、蝶番金具９０は、上端を蓋本体４に軸支させた棒状に形成されており、その中途を蝶番受座６８ａに入れ、この蝶番受座６８ａと蝶番金具９０との組み合わせにより、蓋本体４を開閉可能に連結させるようにする。
【００３３】
また、押圧部６６は、下開口部５２に挿入するようにしたが、取付座５３を内筒体３の下端に形成し、下開口部５２を形成しなくてもよい。この場合、押圧部６６は、内筒体３の下端から外筒体２の縦溝部２３に当接させるようにする。
【００３４】
次に、図８、９は、本発明の第２、３実施例における受け部と可動部材を説明したもので、これらの実施例における蝶番受座は、第１実施例に記載したフック状の蝶番受座６８や円環状の蝶番受け座６８ａを適宜採用することができる。
【００３５】
なお、第２、３実施例では、第１実施例と同一の構成要素には、同一の符号を付してその説明を省略する。
【００３６】
図８は本発明の第２実施例を示す図である。この第２実施例における受け部２５０は、内筒体３に６０゜の間隔で６箇所形成されており、各受け部２５０は、内筒体３を内外に貫通させた開口部２５１と、この開口部２５１の下端縁から内方に向けて突設した取付座２５２とからなり、この取付座２５２には、貫通させたボルト１１の軸線が内筒体３の上部開口７（図１参照）を貫通するように、そのボルト１１の径と略同径の貫通孔２５３を穿設している。また取付座２５２の上面は、外方に向けて下り傾斜するように形成されており、下面にはボルト１１の頭部を回転不能とする保持部としての回転止め２５４が形成されている。
【００３７】
一方、可動部材２６０は、摺動部２６１と柱状部２６３とからなり、摺動部２６１は、側面視で外方が肉厚となる楔状となっており、その下面が取付座２５２の上面に沿って摺動可能となっている。この摺動部２６１にはボルト１１を緩挿する切り欠き２６２を設け、先端には押圧部２６５を形成している。また、摺動部２６１の上方には柱状部２６３を延設し、その上端には蝶番受座（図示せず）を形成している。
【００３８】
上記構成において、受け部２５０に可動部材２６０を装着するには、先ず図８（Ａ）に示すように、受け部２５０の開口部２５１に、可動部材２６０の摺動部２６１の押圧部２６５を挿入する。そして、取付座２５２の上面に摺動部２６１の下面を臨ませた状態で、ボルト１１を下方から取付座２５２の貫通孔２５３および摺動部２６１の切り欠き２６２に挿入し、ボルト１１の先端にナット１６を螺合させる。この状態で可動部材２６０は緩やかに受け部２５０に装着される。次に、地上から内筒体３の内部に六角のボックスレンチ１９を挿入し、その軸線周りに旋回してボルト１１にナット１６を螺合させていくと、図８（Ｂ）に示すように、ボルト１１の段差部１１ａが取付座２５２を下方から圧接し、またナット１６が摺動部２６１を上方から圧接するので、外方を肉厚とした摺動部２６１にはボルト１１を締め付ける分力が外方に作用するため、取付座２５２の上面に沿って摺動部２６１の下面が外筒体２側に向けて摺動する。その結果、摺動部２６１の先端の押圧部２６５が外筒体２の内周面に形成した縦溝部２３の溝面に当接する。
【００３９】
このように、この第２実施例においても、上記した第１実施例と同様に、受け部２５０を内筒体３の内周面に周方向に複数形成し、また可動部材２６０の柱状部２６３の上端に蝶番受座を設けるようにしたので、蝶番受座の位置を受け部２５０を選択することで適切な位置に持ってくることができ、したがって、蓋本体４に管路の流れ方向や模様等が表示されている場合でも、その蝶番受座に蝶番金具９または９０を介して蓋本体４を連結することで、蓋本体４の表面に表示した矢印や模様の方向を所望の方向に一致させることができる。
【００４０】
また、内筒体３が緩むのを防止するためのボルト１１の軸線が内筒体３の上部開口７（図１参照）を貫通するようにしたので、地上からボックスレンチ１９を入れて行うボルト１１の締め付け作業あるいはその逆にボルト１１を外すときの作業を極めて簡単に行うことができ、作業効率を大幅に向上させることができる。
【００４１】
また、ボルト１１を締め付けていくと、摺動部２６１の先端の押圧部２６５が外筒体２に当接し押圧した状態で固定されるので、内筒体３は外筒体２に固定され、内筒体３が緩んでガタついたり、回転してしまうことを確実に防止することができる。
【００４２】
さらに、取付座２５２の上面に摺動部２６１を位置させるため、装着が容易であるとともにボルト１１を外したとき可動部材２６０が受け部２５０から落下するのを防止することができる。
【００４３】
図９は本発明の第３実施例を示す図である。この第３実施例における受け部３５０も、上記した第１、第２実施例の場合と同様に、内筒体３に６０゜の間隔で６箇所形成され、この受け部３５０には可動部材３６０が装着される。各受け部３５０は、内筒体３の側壁を内方に向けて箱型状に突設させて形成した枠部３５１を備え、この枠部３５１には貫通孔３５２と、その貫通孔３５２の外側に抜け止めプレート３５３によって保持されたナット１７とを配設している。枠部３５１の上下には、それぞれ２箇所の切欠３５４，３５５を形成している。
【００４４】
可動部材３６０は、上側の切欠３５４内に挿通する第１の押圧部３６１と、下側の切欠３５５内に挿通する第２押圧部３６２とをボルト孔３６３を有する連結部３６４で連結して断面コ字状とし、前記第１押圧部３６１の上方に柱状部３６５を延設し、その上端には蝶番受座（図示せず）を形成している。
【００４５】
上記構成において、受け部３５０に可動部材３６０を装着する場合には、可動部材３６０の第１押圧部３６１を上側の切欠３５４に挿入し、第２押圧部３６２を下側の切欠３５５に挿入し、さらにボルト孔３６３および貫通孔３５２にボルト１２を挿通させてナット１７に螺合させる。そして、ボルト１２を締めつけることによって、可動部材３６０の第１、第２の押圧部３６１，３６２先端が、外筒体２の縦溝部２３の溝面に当接することとなる。
【００４６】
このように、この第３実施例においても、上記した第１、第２実施例と同様に、受け部３５０を内筒体３の内周面に周方向に複数形成し、また可動部材３６０の柱状部３６５に蝶番受座を設けるようにしたので、蝶番受座の位置を受け部３５０を選択することで適切な位置に持ってくることができ、したがって、蓋本体４の表面に表示した矢印や模様の方向を所望の方向に一致させることができる。
【００４７】
また、押圧部３６１，３６２の上下二箇所が外筒体２に当接し押圧するので、内筒体３を上下２箇所で固定することとなり、内筒体３の緩みを確実に防止することができる。
【００４８】
以上、本発明の実施例を説明したが、本発明は上記各実施例に限定されるものではない。例えば、上記各実施例では、受け部を内筒体に６０゜の間隔で６箇所形成するように構成したが、この受け部は所定間隔で任意の個数形成するようにしてもよい。また、柱状部の上端に形成した蝶番受座は、蝶番金具を介して蓋本体を開閉可能に連結できるものであれば実施例の構造に限定されるものではない。
【００４９】
【発明の効果】
この発明は上記した構成からなるので、以下に説明するような効果を奏することができる。
【００５０】
請求項１に記載の発明では、内筒体の内周面に受け部を複数形成するとともに、その受け部に装着する可動部材に蝶番受座を設けるようにしたので、可動部材を装着する受け部を適切に選択することができ、したがって、蓋本体の表面に表示した矢印や模様の方向を所望の方向に一致させることができる。
【００５１】
また、その選択した受け部に可動部材を装着し、可動部材を外筒体の内周面に当接させて内筒体を外筒体に固定することで、内筒体が緩むのを防止することができる。
【００５２】
請求項２に記載の発明では、受け部の開口部を上下二箇所に形成するとともに、可動部材を側面視で略コ字状とし、内筒体を上下２箇所で固定するようにしたことにより、蓋本体の向きを施工前と同一方向とすることができるだけでなく、内筒体の緩みを確実に防止することができる。
【００５３】
請求項３に記載の発明では、内筒体の内周面に突設させた取付座の上面を可動部材が摺動するように構成したので、蓋本体の向きを施工前と同一方向とすることができるだけなく、装着が容易となり、また装着時に可動部材が取付座から落下するのを防止することができる。
【００５４】
さらに、請求項４に記載の発明では、内筒体の内周面に、蝶番受座を位置決めする位置決め部を各受け部の上方に形成したので、蝶番受座を位置決めすることで可動部材を確実に装着することができるとともに、蓋本体の開閉動作を安定して行うことができる。
【図面の簡単な説明】
【図１】この発明の地下構造物用筐体の構成を示す縦断面図である。
【図２】内筒体の構成を示す図で、（Ａ）は平面図、（Ｂ）は同図（Ａ）のＩ−Ｉ線断面図である。
【図３】外筒体の構成を示す図で、（Ａ）は平面図、（Ｂ）は同図（Ａ）のＩＩ−ＩＩ線断面図である。
【図４】可動部材の構成を示す図で、（Ａ）は正面図、（Ｂ）は縦断面図、（Ｃ）は背面図、（Ｄ）は平面図、（Ｅ）は同図（Ｂ）のＩＩＩ−ＩＩＩ線断面図である。
【図５】受け部に可動部材を装着し内筒体を外筒体に固定する第１段階を示す図で、（Ａ）はその平面図、（Ｂ）は縦断面図である。
【図６】受け部に可動部材を装着し内筒体を外筒体に固定する手順を段階的に示す図である。
【図７】蝶番受座の他の実施例を示す図である。
【図８】この発明の地下構造物用筐体の第２実施例を示す図である。
【図９】この発明の地下構造物用筐体の第３実施例を示す図である。
【符号の説明】
１地下構造物用筐体
２外筒体
３内筒体
４蓋本体
５，２５０，３５０受け部
５１上開口部（開口部）
５２下開口部（開口部）
５３，２５２取付座
５３１，２５３貫通孔
５４位置決め部
６，２６０，３６０可動部材
６Ｂ，２６３，３６５柱状部
６１上腕部
６１１，６２１緩挿孔
６２，２６１摺動部
６３連結部
６４ナット収納室（保持部）
６５，６６，２６５押圧部
６８，６８ａ蝶番受座
７上部開口
９，９０蝶番金具
１０，１１ボルト
１５，１６ナット
２５１開口部
２５４回転止め（保持部）[0001]
BACKGROUND OF THE INVENTION
The present invention includes an outer cylindrical body, an inner cylindrical body that is screwed to the outer cylindrical body, and a lid body that is connected to the inner cylindrical body via a hinge metal fitting and that can open and close the upper opening of the inner cylindrical body. The present invention relates to an underground structure housing.
[0002]
[Prior art]
Conventionally, as a case for an underground structure, for example, a gate valve case described in Japanese Utility Model Publication No. 63-9655 is known. In this gate valve housing, the inner cylinder is screwed into the inside of the outer cylinder, and a nut is housed in a support frame formed on the inner cylinder, and a bolt is screwed into the nut from the inner surface side of the inner cylinder. A fixing device is provided in which the end of the bolt is pressed against the inner surface of the outer cylinder so that the two cylinders are integrated. First, the inner cylinder is rotated so that the upper surface thereof is aligned with the road surface. Then, the inner cylinder can be fixed by a fixing device so that the inner cylinder does not loosen with respect to the outer cylinder.
[0003]
On the other hand, a hinge seat is formed at a predetermined position on the inner periphery of the inner cylinder, and a lid body is connected to the lid body via a hinge fitting attached to the hinge seat so that the lid body can be opened and closed. On the surface, the flow direction of the underground pipeline may be indicated by an arrow, or a pattern having directionality may be drawn.
[0004]
[Problems to be solved by the invention]
However, in the above-described conventional gate valve housing, when the inner cylinder is rotated in order to make the upper surface of the inner cylinder coincide with the worn road surface or the road surface at the time of this restoration, the inner peripheral upper portion of the inner cylinder body is Since the formed hinge seat also rotates, there is a problem that the directions of the arrows and patterns displayed on the surface of the lid main body are different from those before construction.
[0005]
The present invention has been made in view of the above-described points, and prevents the inner cylinder from loosening and allows the direction of the arrow or pattern displayed on the surface of the lid body to match the desired direction. An object is to provide a housing for objects.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, an invention according to claim 1 is directed to an outer cylinder, an inner cylinder screwed to the outer cylinder, and an inner cylinder connected to the inner cylinder via a hinge metal fitting. In an underground structure housing having a lid main body capable of opening and closing an upper opening of the body, the inner cylindrical body includes a plurality of receiving portions formed in a circumferential direction on an inner peripheral surface thereof, and any one of the receiving portions. A movable member that fixes the inner cylindrical body to the outer cylindrical body by contacting the inner peripheral surface of the outer cylindrical body at the time of mounting, and the movable member has a columnar portion that extends upward. It is characterized in that a hinge seat is formed at the upper end of the columnar portion so that the hinge fitting can be mounted.
[0007]
With such a configuration, when the movable member is attached to the receiving portion, the receiving portion can be selected so that the hinge receiving seat is positioned in the same direction as before construction. The movable member is attached to the selected receiving portion, and the movable member is brought into contact with the inner peripheral surface of the outer cylindrical body to fix the inner cylindrical body to the outer cylindrical body, thereby preventing the inner cylindrical body from loosening. In addition, by connecting the lid body via a hinge fitting attached to a hinge seat facing the inner periphery of the inner cylinder, the direction of the arrow or pattern displayed on the surface of the lid body can be Can match the direction.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, the opening portion of the receiving portion is formed at two upper and lower portions, the movable member is substantially U-shaped in a side view, and the inner cylinder is fixed at two upper and lower portions. Not only can the body be oriented in the same direction as before construction, but also the loosening of the inner cylinder can be reliably prevented.
[0009]
Further, in the present invention, the movable member slides on the upper surface of the mounting seat protruding from the inner peripheral surface of the inner cylindrical body, so that the direction of the lid body is the same as that before construction. In addition, the mounting can be facilitated, and the movable member can be prevented from dropping from the mounting seat during mounting.
[0010]
Further, in the present invention, since the positioning portion for positioning the hinge receiving seat is formed above each receiving portion on the inner peripheral surface of the inner cylindrical body, the movable member is positioned by positioning the hinge receiving seat. While being able to install reliably, the opening / closing operation | movement of a cover main body can be performed stably.
[0011]
【Example】
Embodiments of the present invention will be described below in detail with reference to the drawings. First, a first embodiment will be described with reference to FIGS.
[0012]
FIG. 1 is a longitudinal sectional view showing the structure of an underground structure casing according to the present invention, FIG. 2 is a view showing the structure of an inner cylinder, (A) is a plan view, and (B) is the same figure (A). Fig. 3 is a cross-sectional view taken along the line II, Fig. 3 is a view showing the configuration of the outer cylinder, (A) is a plan view, and (B) is a cross-sectional view taken along the line II-II in Fig. (A). In FIG. 1, an underground structure housing 1 includes an outer cylindrical body 2, an inner cylindrical body 3 screwed into the outer cylindrical body 2, and a movable member 6 attached to a receiving portion 5 of the inner cylindrical body 3. The inner cylindrical body 3 is fixed by bringing the pressing portions 65 and 66 formed at the tip of the movable member 6 into contact with the inner peripheral surface of the outer cylindrical body 2. The outer cylindrical body 2 is provided with a female screw portion 21 having a rough pitch on the inner peripheral surface thereof, and a flange 22 is formed on the lower end of the outer peripheral surface.
[0013]
Further, on the inner peripheral surface of the outer cylindrical body 2, six longitudinal groove portions 23 having an internal thread portion 21 cut out in the axial direction and having an equal width extending from the upper end to the lower end are formed at intervals of 60 °.
[0014]
On the other hand, the inner cylinder 3 is formed with six receiving portions 5 at intervals of 60 ° at the lower portion of the inner peripheral surface, and male threaded portions 31 having a rough pitch are raised at the lower portion of the outer peripheral surface. Each of the receiving portions 5 includes an upper opening 51 as an opening penetrating inward and outward in the upper position of the inner cylinder 3, and a lower opening as an opening penetrating inward and outward at the lower position and opened downward. And a mounting seat 53 protruding from the inner peripheral surface side of the inner cylinder 3 at the upper end edge of the lower opening 52. A through hole 531 having a diameter substantially the same as the diameter of the bolt is formed in the mounting seat 53 so that the axis of the bolt penetrated passes through the upper opening 7 of the inner cylinder 3. Further, the lower surface of the mounting seat 53 is formed so as to incline upward toward the outside. Further, the upper surface of the upper opening 51 is formed so as to incline upward toward the outside, similarly to the lower surface of the mounting seat 53.
[0015]
Further, a positioning portion 54 is formed on the upper portion of the inner peripheral surface of the inner cylindrical body 3 so as to correspond to the receiving portion 5, and a hinge receiving seat 68 formed at the upper end of a columnar portion 6B of the movable member 6 described later. Positioning is performed.
[0016]
Further, a lid receiving portion 32 having a tapered surface is formed at the upper part of the inner peripheral surface of the inner cylinder 3, and the lid body 4 that can open and close the upper opening 7 of the inner cylinder 3 is fitted via the hinge metal 9. I try to support it.
[0017]
4A and 4B show the configuration of the movable member 6, where FIG. 4A is a front view, FIG. 4B is a longitudinal sectional view, FIG. 4C is a rear view, FIG. 4D is a plan view, and FIG. ), The movable member 6 is composed of a lower half 6A and a columnar portion 6B above the lower half 6A as shown in the drawing.
[0018]
The lower half portion 6A is formed in a substantially U shape in a side view by an upper arm portion 61, a sliding portion 62 as a lower arm portion, and a connecting portion 63 that connects both the upper arm portion 61, the upper arm portion 61, and the sliding portion 62. Each of these is formed with a loose insertion hole 611, 621 larger than the diameter of the bolt 10. The sliding part 62 is formed so that the tip side is thick in a side view, and its upper surface is slidable along the lower surface of the mounting seat 53 of the receiving part 5. A nut storage chamber 64 is formed below the sliding portion 62 as a holding portion that holds the nut in a non-rotatable manner, and a through-hole 642 through which a bolt tip passes is formed in the lower wall 64a of the nut storage chamber 64. Has been. Further, a pressing portion 65 is formed at the tip of the upper arm portion 61 to contact the longitudinal groove portion 23 of the outer cylindrical body 2, and a protrusion 612 is formed on the lower surface of the pressing portion 65, and the movable member 6 is received by the receiving portion. 5, when the pressing portion 65 at the tip of the upper arm portion 61 is inserted into the upper opening 51 of the inner cylinder 3, the protrusion 612 is engaged with the lower end edge of the upper opening 51. In addition, a pressing portion 66 that is brought into contact with the longitudinal groove portion 23 of the outer cylindrical body 2 is also formed at the tip of the sliding portion 62.
[0019]
On the other hand, the columnar portion 6B is extended upward from the upper arm portion 61 with the lower portion being bifurcated, and a hinge seat 68 is formed at the upper end of the columnar portion 6B.
[0020]
As shown in FIG. 4, the hinge receiving seat 68 is formed such that a bearing portion 682 formed so that its longitudinal section has a hook shape is opposed to each other through a groove 683, and an upper end edge of the bearing portion 682 is formed. A notch 681 is formed in the. Then, as shown in FIG. 1, the lid side hinge 9 a of the hinge fitting 9 is pivotally supported in the hinge through hole 41 of the lid body 4, and the other receiving frame side hinge 9 b is inserted from the notch portion 681 to I support it. Therefore, the lid body 4 is connected to the inner cylinder 3 so as to be openable and closable by the combination of the hinge fitting 9 and the hinge receiving seat 68.
[0021]
In the above configuration, in order to attach and fix the inner cylindrical body 3 to the outer cylindrical body 2, first, the inner cylindrical body 3 is inserted into the outer cylindrical body 2 and screwed, and then rotated and moved up and down. Adjust the upper end surface to the road surface height.
[0022]
At this time, when the receiving portion 5 does not match the vertical groove portion 23 of the outer cylindrical body 2, the inner cylindrical body 3 is slightly rotated so that the receiving portion 5 matches the closest vertical groove portion 23. After the alignment is performed in this manner, the receiving portion 5 to which the movable member 6 is attached is selected so that the flow direction and the pattern direction of the pipe line displayed on the surface of the lid body 4 are appropriate.
[0023]
FIGS. 5 and 6 are diagrams showing a procedure for mounting the movable member 6 on the receiving portion 5 and fixing the inner cylinder 3 to the outer cylinder 2. In order to mount the movable member 6 on the receiving portion 5, first, as shown in FIG. 5, the movable member 6 is brought close to the receiving portion 5 with the nut 15 stored in the nut storage chamber 64, and the upper opening of the receiving portion 5 is placed. The upper arm portion 61 of the movable member 6 and the pressing portions 65 and 66 of the sliding portion 62 are inserted into the 51 and the lower opening 52, respectively. Then, with the upper surface of the sliding portion 62 facing the lower surface of the mounting seat 53, as shown in FIG. 6A, the hexagon socket bolt 10 is inserted into the loose insertion hole 611 of the upper arm portion 61 and the mounting seat 53. Are inserted into the through hole 531 and the loose insertion hole 621 of the sliding portion 62, and the tip thereof is screwed into the nut 15 of the nut storage chamber 64. In this state, the movable member 6 is gently attached to the receiving portion 5.
[0024]
Next, the hexagon wrench 18 is inserted into the inner cylinder 3 from the ground, the tip of the wrench 18 is inserted into the hexagon hole of the bolt 10, and the bolt 10 is screwed into the nut 15 by turning around the axis.
[0025]
Subsequently, when the bolt 10 is rotated, the tip of the bolt 10 protrudes from the through hole 642 of the nut storage chamber 64 as shown in FIG. 6B, and the stepped portion 10a of the bolt 10 is attached to the mounting seat. Since the upper surface of 53 is pressed and the nut 15 pushes up the sliding portion 62, the distance between the lower surface of the mounting seat 53 and the upper surface of the sliding portion 62 is narrowed. When the bolt 10 is further rotated, since the sliding portion 62 is thickened on the outside, the component force for tightening the bolt 10 acts outward, so that the sliding portion 62 moves along the lower surface of the mounting seat 53. It moves so as to be pushed out to the outer cylinder 2 side. As a result, the pressing portion 66 formed at the tip of the sliding portion 62 comes into contact with the groove surface of the longitudinal groove portion 23 formed on the inner peripheral surface of the outer cylindrical body 2. Further, the upper arm portion 61 is also pushed up obliquely and moved while sliding along the inclined upper surface of the upper opening 51, and the pressing portion 65 at the tip thereof comes into contact with the groove surface of the vertical groove portion 23 of the outer cylindrical body 2 ( FIG. 6 (C)). At this time, the loose insertion holes 611 and 621 are formed in such a size that the movable member 6 can slide and the pressing portions 65 and 66 can come into contact with the groove surface of the longitudinal groove portion 23.
[0026]
On the other hand, as shown in FIGS. 6 (A) and 6 (B), the hinge seat 68 formed on the upper end of the columnar portion 6B also moves slightly upward according to the movement of the movable member 6, Accordingly, the positioning portion 54 formed on the inner peripheral surface of the inner cylindrical body 3 is positioned in the groove 683 formed between the bearing portions 682 of the columnar portion 6B, and the columnar portion 6B is positioned in the positioning portion 54. And is held in an upright posture (FIG. 6C).
[0027]
In the above description, the case where the inner cylinder 3 is fixed to the outer cylinder 2 has been described. However, when it is necessary to adjust the inner cylinder 3 to the road surface height again, the lid body 4 is opened to open the hinge. The metal fitting 9 is removed from the hinge receiving seat 68, the hexagon wrench 18 is rotated to loosen the bolt 10, the movable member 6 is removed from the receiving portion 5 of the inner cylinder 3, and then the inner cylinder 3 is rotated to move up and down. It should be adjusted to the road surface height.
[0028]
As described above, in this embodiment, a plurality of receiving portions 5 are formed on the inner peripheral surface of the inner cylindrical body 3 in the circumferential direction, and the hinge receiving seat 68 is provided on the columnar portion 6B of the movable member 6. The position of the hinge seat 68 can be brought to an appropriate position by selecting the receiving part 5, and therefore, even when the flow direction or pattern of the pipeline is displayed on the lid body 4, By connecting the lid main body 4 to the hinge receiving seat 68 via the hinge metal fitting 9, the direction of the arrow or pattern displayed on the surface of the lid main body 4 can be matched with a desired direction.
[0029]
Further, since the axis of the bolt 10 for preventing the inner cylinder 3 from loosening passes through the upper opening 7 of the inner cylinder 3, a hexagon wrench 18 is inserted from the ground and swiveled continuously around the axis. By doing so, the bolt 10 can be tightened. Therefore, the bolt tightening operation or the operation for removing the bolt can be performed very easily, and the work efficiency can be greatly improved.
[0030]
Further, when the bolt 10 is tightened, the sliding portion 62 is thickened on the outer side, so that the component force for tightening the bolt 10 acts outward, so that the sliding portion 62 moves outward. Accordingly, since the upper arm portion 61 of the movable member 6 and the pressing portions 65 and 66 of the sliding portion 62 are fixed in contact with and pressed against the outer cylindrical body 2, the inner cylindrical body 3 is fixed via the movable member 6. It is fixed to the cylindrical body 2, and it is possible to reliably prevent the inner cylindrical body 3 from loosening, rattling or rotating.
[0031]
Further, since the projection 612 is formed on the lower surface of the pressing portion 65 of the upper arm portion 61, the projection 612 engages with the lower end edge of the upper opening 51 of the inner cylinder 3 even when the bolt 10 is loosened or removed. The movable member 6 can be prevented from falling from the receiving portion 5.
[0032]
In the above description, the hook-shaped hinge receiving seat 68 is provided at the upper end of the columnar portion 6B, but this hinge receiving seat is formed in an arbitrary shape as long as the lid body 4 can be connected to be opened and closed. be able to. For example, as shown in FIG. 7, the hinge receiving seat 68a may be formed in an annular shape. In this case, the hinge fitting 90 is formed in a rod shape whose upper end is pivotally supported by the lid main body 4. The middle of the hinge fitting 90 is placed in the hinge receiving seat 68 a, and the hinge receiving seat 68 a and the hinge fitting 90 are combined to form a lid. The main body 4 is connected so as to be openable and closable.
[0033]
In addition, the pressing portion 66 is inserted into the lower opening 52, but the mounting seat 53 may be formed at the lower end of the inner cylinder 3, and the lower opening 52 may not be formed. In this case, the pressing portion 66 is brought into contact with the longitudinal groove portion 23 of the outer cylindrical body 2 from the lower end of the inner cylindrical body 3.
[0034]
Next, FIGS. 8 and 9 illustrate the receiving portion and the movable member in the second and third embodiments of the present invention. The hinge seat in these embodiments is the hook-like shape described in the first embodiment. A hinge receiving seat 68 or an annular hinge receiving seat 68a can be appropriately employed.
[0035]
In the second and third embodiments, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
[0036]
FIG. 8 is a diagram showing a second embodiment of the present invention. In this second embodiment, the receiving portions 250 are formed at six positions at intervals of 60 ° in the inner cylindrical body 3, and each receiving portion 250 has an opening 251 penetrating the inner cylindrical body 3 in and out, and this The mounting seat 252 protrudes inwardly from the lower end edge of the opening 251, and the axis of the bolt 11 penetrated through the mounting seat 252 is the upper opening 7 of the inner cylinder 3 (see FIG. 1). A through-hole 253 having a diameter substantially the same as the diameter of the bolt 11 is formed so as to penetrate the bolt 11. Further, the upper surface of the mounting seat 252 is formed so as to incline downward toward the outside, and a rotation stopper 254 is formed on the lower surface as a holding portion that prevents the head of the bolt 11 from rotating.
[0037]
On the other hand, the movable member 260 includes a sliding portion 261 and a columnar portion 263, and the sliding portion 261 has a wedge shape whose outer side is thick in a side view, and its lower surface is on the upper surface of the mounting seat 252. It can slide along. The sliding portion 261 is provided with a notch 262 for loosely inserting the bolt 11, and a pressing portion 265 is formed at the tip. Further, a columnar portion 263 extends above the sliding portion 261, and a hinge seat (not shown) is formed at the upper end thereof.
[0038]
In the above configuration, in order to attach the movable member 260 to the receiving portion 250, first, as shown in FIG. 8A, the pressing portion 265 of the sliding portion 261 of the movable member 260 is inserted into the opening 251 of the receiving portion 250. insert. Then, with the lower surface of the sliding portion 261 facing the upper surface of the mounting seat 252, the bolt 11 is inserted into the through hole 253 of the mounting seat 252 and the notch 262 of the sliding portion 261 from below, and the tip of the bolt 11 The nut 16 is screwed into the nut. In this state, the movable member 260 is gently attached to the receiving portion 250. Next, when a hexagonal box wrench 19 is inserted into the inner cylindrical body 3 from the ground and turned around its axis, and the nut 16 is screwed onto the bolt 11, as shown in FIG. 8B. Since the stepped portion 11a of the bolt 11 presses the mounting seat 252 from below and the nut 16 presses the sliding portion 261 from above, the bolt 11 is tightened to the sliding portion 261 having a thick outer side. Since the force acts outward, the lower surface of the sliding portion 261 slides toward the outer cylindrical body 2 along the upper surface of the mounting seat 252. As a result, the pressing portion 265 at the tip of the sliding portion 261 contacts the groove surface of the longitudinal groove portion 23 formed on the inner peripheral surface of the outer cylindrical body 2.
[0039]
Thus, also in the second embodiment, similarly to the first embodiment described above, a plurality of receiving portions 250 are formed on the inner peripheral surface of the inner cylinder 3 in the circumferential direction, and the columnar portion 263 of the movable member 260 is formed. Since the hinge seat is provided at the upper end of the lid, the position of the hinge seat can be brought to an appropriate position by selecting the receiving portion 250. Even when a pattern or the like is displayed, the direction of the arrow or the pattern displayed on the surface of the lid body 4 is set to a desired direction by connecting the lid body 4 to the hinge seat via the hinge metal 9 or 90. Can be matched.
[0040]
Further, since the axis of the bolt 11 for preventing the inner cylinder 3 from loosening passes through the upper opening 7 (see FIG. 1) of the inner cylinder 3, a bolt that is inserted by inserting a box wrench 19 from the ground. Therefore, the work of removing the bolt 11 can be performed very easily, and the work efficiency can be greatly improved.
[0041]
Further, as the bolt 11 is tightened, the pressing portion 265 at the tip of the sliding portion 261 is fixed in contact with and pressed against the outer cylindrical body 2, so that the inner cylindrical body 3 is fixed to the outer cylindrical body 2, It is possible to reliably prevent the inner cylindrical body 3 from loosening, rattling or rotating.
[0042]
Furthermore, since the sliding portion 261 is positioned on the upper surface of the mounting seat 252, it is easy to mount and the movable member 260 can be prevented from falling from the receiving portion 250 when the bolt 11 is removed.
[0043]
FIG. 9 is a diagram showing a third embodiment of the present invention. Similarly to the case of the first and second embodiments described above, the receiving portion 350 in the third embodiment is formed at six locations at an interval of 60 ° on the inner cylinder 3. The receiving portion 350 has a movable member 360. Is installed. Each receiving portion 350 includes a frame portion 351 formed by projecting in a box shape with the side wall of the inner cylindrical body 3 facing inward. The frame portion 351 includes a through hole 352 and a through hole 352. A nut 17 held by a retaining plate 353 is disposed outside. Two notches 354 and 355 are formed above and below the frame portion 351, respectively.
[0044]
The movable member 360 has a cross section in which a first pressing portion 361 inserted into the upper notch 354 and a second pressing portion 362 inserted into the lower notch 355 are connected by a connecting portion 364 having a bolt hole 363. A columnar portion 365 is extended above the first pressing portion 361 and a hinge seat (not shown) is formed at the upper end thereof.
[0045]
In the above configuration, when the movable member 360 is attached to the receiving portion 350, the first pressing portion 361 of the movable member 360 is inserted into the upper notch 354, and the second pressing portion 362 is inserted into the lower notch 355. Further, the bolt 12 is inserted into the bolt hole 363 and the through hole 352 and screwed into the nut 17. Then, by tightening the bolt 12, the tips of the first and second pressing portions 361 and 362 of the movable member 360 come into contact with the groove surface of the longitudinal groove portion 23 of the outer cylindrical body 2.
[0046]
As described above, also in the third embodiment, as in the first and second embodiments, a plurality of receiving portions 350 are formed on the inner peripheral surface of the inner cylindrical body 3 in the circumferential direction, and the movable member 360 is Since the columnar portion 365 is provided with a hinge receiving seat, the position of the hinge receiving seat can be brought to an appropriate position by selecting the receiving portion 350. Therefore, the arrow displayed on the surface of the lid body 4 The direction of the pattern can be matched with the desired direction.
[0047]
In addition, since the upper and lower two portions of the pressing portions 361 and 362 are in contact with and press against the outer cylindrical body 2, the inner cylindrical body 3 is fixed at the upper and lower two locations, and the loosening of the inner cylindrical body 3 can be reliably prevented. it can.
[0048]
As mentioned above, although the Example of this invention was described, this invention is not limited to said each Example. For example, in each of the above embodiments, six receiving portions are formed on the inner cylinder at intervals of 60 °, but any number of receiving portions may be formed at predetermined intervals. Further, the hinge seat formed at the upper end of the columnar portion is not limited to the structure of the embodiment as long as the lid body can be connected to be opened and closed via a hinge fitting.
[0049]
【The invention's effect】
Since this invention consists of an above-described structure, there can exist an effect which is demonstrated below.
[0050]
In the first aspect of the present invention, a plurality of receiving portions are formed on the inner peripheral surface of the inner cylindrical body, and a hinge receiving seat is provided on the movable member attached to the receiving portion. Therefore, the direction of the arrow or pattern displayed on the surface of the lid body can be matched with the desired direction.
[0051]
In addition, the movable member is mounted on the selected receiving portion, and the movable member is brought into contact with the inner peripheral surface of the outer cylindrical body to fix the inner cylindrical body to the outer cylindrical body, thereby preventing the inner cylindrical body from loosening. can do.
[0052]
In the invention according to claim 2, the opening of the receiving portion is formed in two upper and lower portions, the movable member is substantially U-shaped in a side view, and the inner cylinder is fixed at two upper and lower portions. In addition to making the direction of the lid body the same as that before construction, loosening of the inner cylinder can be reliably prevented.
[0053]
In the invention according to claim 3, since the movable member is configured to slide on the upper surface of the mounting seat protruding from the inner peripheral surface of the inner cylinder, the direction of the lid body is set to the same direction as before construction. In addition, the mounting can be facilitated, and the movable member can be prevented from dropping from the mounting seat during mounting.
[0054]
Furthermore, in the invention according to claim 4, since the positioning portion for positioning the hinge receiving seat is formed above each receiving portion on the inner peripheral surface of the inner cylindrical body, the movable member is positioned by positioning the hinge receiving seat. While being able to install reliably, the opening / closing operation | movement of a cover main body can be performed stably.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a configuration of an underground structure casing according to the present invention.
2A and 2B are diagrams showing a configuration of an inner cylinder, in which FIG. 2A is a plan view, and FIG. 2B is a cross-sectional view taken along the line II in FIG.
3A and 3B are diagrams showing a configuration of an outer cylindrical body, in which FIG. 3A is a plan view, and FIG. 3B is a cross-sectional view taken along line II-II in FIG.
4A and 4B are diagrams showing a configuration of a movable member, where FIG. 4A is a front view, FIG. 4B is a longitudinal sectional view, FIG. 4C is a rear view, FIG. 4D is a plan view, and FIG. 3 is a cross-sectional view taken along line III-III.
FIGS. 5A and 5B are diagrams showing a first stage in which a movable member is attached to the receiving portion and the inner cylinder is fixed to the outer cylinder, and FIG. 5A is a plan view and FIG. 5B is a longitudinal sectional view.
FIG. 6 is a diagram showing step by step a procedure for attaching a movable member to a receiving portion and fixing an inner cylinder to an outer cylinder.
FIG. 7 is a view showing another embodiment of the hinge receiving seat.
FIG. 8 is a view showing a second embodiment of the underground structure casing of the present invention.
FIG. 9 is a view showing a third embodiment of the underground structure casing of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Case for underground structures 2 Outer cylinder 3 Inner cylinder 4 Lid body 5,250,350 Receiving part 51 Upper opening part (opening part)
52 Lower opening (opening)
53,252 Mounting seat 531,253 Through hole 54 Positioning portion 6, 260, 360 Movable member 6B, 263, 365 Columnar portion 61 Upper arm portion 611, 621 Slow insertion hole 62, 261 Sliding portion 63 Connecting portion 64 Nut storage chamber ( Holding part)
65, 66, 265 Pressing portion 68, 68a Hinge receiving seat 7 Upper opening 9, 90 Hinge bracket 10, 11 Bolt 15, 16 Nut 251 Opening 254 Anti-rotation (holding portion)

Claims

An underground structure comprising an outer cylindrical body, an inner cylindrical body that is screwed to the outer cylindrical body, and a lid body that is connected to the inner cylindrical body via a hinge fitting and can open and close the upper opening of the inner cylindrical body In the housing for objects,
The inner cylinder includes a plurality of receiving portions formed in the circumferential direction on the inner peripheral surface thereof, and any one of the receiving portions is selectively mounted, and the inner cylinder is brought into contact with the inner peripheral surface of the outer cylindrical body at the time of mounting. A movable member for fixing the body to the outer cylinder,
The movable member includes a columnar portion extending upward, and a hinge receiving seat is formed on an upper end of the columnar portion so that the hinge fitting can be attached.
A housing for underground structures characterized by that.

The receiving portion includes an opening that penetrates the inner cylindrical body in and out, and a mounting seat that projects from the inner peripheral surface of the inner cylindrical body,
The opening is composed of an upper opening and a lower opening formed at the upper and lower positions of the inner cylinder, and a mounting seat projects from the upper edge of the lower opening,
In the mounting seat, a through hole is formed so that the axis of the penetrated bolt penetrates the upper opening of the inner cylinder, and the lower surface of the mounting seat is inclined upward toward the outside,
The movable member has an upper arm portion formed at the tip with a pressing portion to be inserted into the upper opening and a pressing portion to be inserted into the lower opening at the tip, and the upper surface slides along the lower surface of the mounting seat. A sliding portion and a connecting portion in which the upper arm portion and the sliding portion are connected in a substantially U shape in a side view, and the upper arm portion and the sliding portion each have a loose insertion hole for loosely inserting a bolt. Drilled,
The sliding part has a thick outer portion in a side view, and a holding part that holds the nut or the bolt unrotatably is formed on the sliding part,
In the upper arm part, the columnar part is extended upward.
The housing for underground structures according to claim 1.

The receiving portion includes an opening that penetrates the inner cylindrical body in and out, and a mounting seat that projects from the inner peripheral surface of the inner cylindrical body,
In the mounting seat, a through hole is formed so that the axis of the penetrated bolt penetrates the upper opening of the inner cylindrical body, and a holding portion that holds the nut or the bolt unrotatably is formed. The upper surface is inclined downward toward the outside,
The movable member includes a pressing portion that is inserted into the opening at the tip, and includes a sliding portion whose lower surface slides along the upper surface of the mounting seat,
The sliding portion is formed so that the outer side is thicker in a side view. The sliding portion is provided with a loose insertion hole for loosely inserting a bolt that penetrates the through hole, and a columnar portion. Extended upwards,
The housing for underground structures according to claim 1.

The housing for an underground structure according to any one of claims 1 to 3, wherein a positioning portion that engages with a hinge seat is formed on an inner surface of the inner cylindrical body above each receiving portion.