JP4047620B2

JP4047620B2 - Cover joint structure

Info

Publication number: JP4047620B2
Application number: JP2002116746A
Authority: JP
Inventors: 国昭大西; 達男池部
Original assignee: Sekisui Chemical Co Ltd
Current assignee: Sekisui Chemical Co Ltd
Priority date: 2002-04-18
Filing date: 2002-04-18
Publication date: 2008-02-13
Anticipated expiration: 2022-04-18
Also published as: JP2003313934A

Description

【０００１】
【発明の属する技術分野】
本発明は、下水処理施設に設置される汚水槽や汚水路、若しくは、上水処理施設に設置される浄化槽や上水路などを覆うために架設される覆蓋の接合構造に関する。
【０００２】
【従来の技術】
この種従来の覆蓋の接合構造として、特開２００１−３１１２１０号公報記載のものがある。この従来の接合構造では、隣接する覆蓋の左右側縁同士が付き合わされ、隣接する一方の覆蓋には、他方の覆蓋の天板の側縁を下方側から支持する支持部が設けられ、該支持部は天板の前後方向全長に亘って設けられ、支持部と他方の覆蓋の天板との間にはシール部材が設けられ、該シール部材は天板の前後方向全長に亘って設けられている。そして、かかる構成により、一方の覆蓋の支持部に設けたシール部材を隣接した覆蓋の天板の下面で密接させ、充分なシール効果が得られるとともに、隣接する覆蓋の天板同士が横方向にわずかにずれた場合でも隙間が生じず、シール効果が維持されるという作用効果を奏するものである。
【０００３】
【発明が解決しようとする課題】
ところで、上水処理施設の水槽乃至水路を複数の覆蓋で覆う場合、水の汚染を防止するために覆蓋同士の間の隙間からの雨水の流入をより確実に防止する必要があり、さらに、近年、薬液を水槽内に投入しようとするいたずら行為を阻止する必要も生じている。しかし、上記従来の接合構造によれば、覆蓋が静置されている場合にはシール性は確保されているが、例えば、下側となる一方の覆蓋（支持部を有する覆蓋）の上に人が乗るなどして該覆蓋に荷重が掛かる場合には、該覆蓋が下方に湾曲変形して隣接する他の覆蓋との間で隙間が発生し、この隙間から雨水や薬液が流入するおそれがある。
【０００４】
例えば図９や図１０に示すように、覆蓋１００の左右側縁に上方に突出する凸部１０１（突堤部）を設けるとともに、隣接する覆蓋１００の双方の凸部１０１を上方から断面コ字状のカバー部材１０２で覆い、該カバー部材１０２により両覆蓋同士の間の隙間からの雨水等の流入を防止することも考えられるが、かかる構成によれば、蓋１００同士が互いにカバー部材１０２によって連結されるものとなるので、点検等の際に必要箇所の覆蓋のみを簡単に脱着したり、覆蓋全体を移動する事等が困難となるし、一方の覆蓋上に人が載った時などにおいて、カバー部材１０２のみで荷重を支持できず、蓋間の隙間が生じて雨水等が流入するおそれがある。
【０００５】
そこで、本発明は、覆蓋上の雨水や薬液が覆蓋同士の隙間から流入してしまうことを確実に阻止し得るとともに、蓋の脱着が移動が容易な覆蓋の接合構造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】
本発明は、上記目的を達成するために、次の技術的手段を講じた。
【０００７】
（第１発明：請求項１〜４）
即ち、本発明は、前後に離間する蓋受け部間に架設され且つ互いに左右に隣接する第１及び第２の覆蓋同士の接合構造において、第１の覆蓋の第２覆蓋側の左右側縁には、上方に突出する第１の凸部（突堤部）が前後方向ほぼ全長に亘って設けられており、第２の覆蓋の第１覆蓋側の左右側縁には、下方に突出する第２の凸部が（好ましくは前後方向ほぼ全長に亘って）設けられており、第２の凸部は、第１の凸部の左右方向の内方で第１の覆蓋上に配設され、第１の凸部の内側部と第２の凸部の内側部とが対向していることを特徴とする覆蓋の接合構造である。かかる本発明の接合構造によれば、第１の覆蓋上の雨水や薬液は、その左右側縁の第１の凸部により堰き止められることで覆蓋間の隙間には流入しない。また、第２の覆蓋の左右側縁の第２の凸部は、第１の凸部の左右内側方で第１の覆蓋上に配設されているので、第２の覆蓋上の雨水や薬液が左右方向に流出しても、第１の覆蓋上に流出する。したがって、第１及び第２の覆蓋上の雨水等がこれら覆蓋間の隙間から流入することがない。さらに、第１及び第２の凸部の内側部同士が対向しているため、第１及び第２の覆蓋を離反させる方向に各覆蓋を左右反対方向にスライドさせても、両凸部同士が係合して隙間が生じることが防止される。また、凸部は前後方向ほぼ全長に亘って設けられているので、この凸部によって覆蓋の曲げ剛性が向上して荷重による変形を抑制できる。さらに、隣接する覆蓋同士の間にカバー材を設ける必要がないので、覆蓋の着脱や移動が容易である。
【０００８】
なお、第１及び第２の凸部は、覆蓋に一体成形されていてもよく、覆蓋を構成する平板状の面板乃至天板の上面に接着剤等によって固定された角材によって構成することも可能である。また、各凸部の材質は、面板と同一であってもよく、また、ゴムなどの弾性体によって構成してもよい。
【０００９】
上記本発明の接合構造において、第１の覆蓋の左右両側縁に前記第１の凸部を設け、第２の覆蓋の左右両側縁に前記第２の凸部を設け、第１の覆蓋と第２の覆蓋とを交互に蓋受け部間に架設し、第２の覆蓋を、左右両側の第１の覆蓋上に設置することができる。これによれば、水槽乃至水路を開口させたいときに、複数の覆蓋のうちの左右一端側の覆蓋を他端側に向けてスライドさせていくと、第１の覆蓋の第１の凸部と第２の覆蓋の第２の凸部とが離反するように第１及び第２の覆蓋が相対的にスライドし、隣接する覆蓋同士が重複する範囲が大きくなる結果、複数の覆蓋全体の左右幅を狭くして、開口を形成することが可能である。
【００１０】
また、上記本発明の接合構造において、第１の凸部の内側部は左右方向に沿う切断面において凹凸構造を呈し、第２の凸部の内側部は、第１の凸部の内側部に対して相補の凹凸構造を呈し、第１及び第２の凸部の内側部同士が凹凸嵌合しているものとすることができる。これによれば、第１及び第２の凸部の内側部同士が凹凸嵌合することで、隣接する覆蓋同士が一体化し、着脱が容易なものでありながらも、覆蓋間に隙間の発生が無く、雨水や薬液等の水槽や水路内での混入をより確実に防止できるとともに、耐荷重性能も向上する。
【００１１】
さらに、蓋受け部には、上方開口コ字状の枠部が左右方向に沿って設けられ、各覆蓋の前後側縁には、下方に突出する脚部が左右方向ほぼ全長に亘って設けられ、各覆蓋の脚部は、前記枠部内に左右方向移動可能に配置されているものとすることができる。これによれば、各覆蓋の左右方向のスライドを枠部により案内することで、容易かつ確実に各覆蓋を左右方向に移動操作することができる。さらに、脚部によって覆蓋の前後端部をシールすることで、防臭性が向上するとともに、覆蓋の前後端部から雨水等が水槽や水路内に流入することを防止できる。
【００１２】
また、各覆蓋の上面を、液体を枠部へ流出させるように傾斜面とするとともに、枠部を、覆蓋の上面から流出された液体の排水路として機能させることができる。これによれば、覆蓋上の雨水や薬液を迅速に枠部へ流出させて、水槽や水路内に流入しないように排水させることができる。
尚、覆蓋の平面的な形状は、スライド構造を構成できればよく、長方形の他、台形、扇形、半円形などでもよい。
【００１３】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。
図１並びに図４（ａ）は、本発明（特に、請求項１，２）の第１実施形態に係る覆蓋の接合構造を示している。本実施形態において、上水処理施設や下水処理施設等に設けられる水槽若しくは水路１が前後に離間するコンクリート躯体２によって形成されており、前後の両躯体２が蓋受け部となる。なお、大規模な貯水池や浄水槽などにおいては、左右方向に伸びるＨ形鋼等を前後方向に複数並設して、この鋼材を蓋受け部として利用することも可能である。その他、蓋受け部は適宜の構成とすることができる。
【００１４】
前後に離間する蓋受け部２間には、左右方向に複数の覆蓋３，４が隣接配置された状態で架設されている。本実施形態では、下側に配置される第１の覆蓋３と、この第１の覆蓋３の上に載置される第２の覆蓋４とが左右方向に交互に配置されている。各覆蓋３の前後方向幅は、前後の蓋受け部２の間隔よりも若干大きく、各覆蓋３の前後端部が蓋受け部２上に設置可能となっている。各覆蓋３の左右幅は適宜のものであってよく、第１の覆蓋３の左右幅と第２の覆蓋４の左右幅とが同一であっても異なっていてもよい。
【００１５】
第１の覆蓋３は、図２（ａ）にも示すように、平面視長方形状で且つ前後方向中央が上方に湾曲するアーチ状の面板５によって主構成されており、この面板５の左右両側縁には、上方に突出する第１の凸部６が前後方向ほぼ全長に亘って設けられていて、これにより第１の覆蓋３の断面形状は全体として略凹形を呈している。凸部６は面板５と一体成形されていてもよいが、面板５とは別体に成形された角材を面板５に前後方向全長にわたり接着接合することもできる。この凸部６は、雨水等を堰き止める突堤（堰）として機能するのみならず、面板５の曲げ剛性を向上するための補強梁としても機能するものである。この凸部６の突出高さは、雨水等が蓋間に浸入しない程度であればよい。凸部５，６の高さが高くなると第１及び第２の覆蓋のそれぞれの面板５間の上下幅が大きくなり、特に前後側縁部におけるシール性に問題が生じ易くなるため、各凸部５，６の突出高さはシール性を最優先に考慮して決定することが好ましい。各覆蓋３，４の剛性が不足する場合には、図４（ｂ）に示すように、前後方向全長に亘る補強梁９を面板５の左右方向中途部（例えば左右中央）に設けることができる。これらの面板５を含む覆蓋の構造は、後述する全ての実施形態にも適用可能なものである。
【００１６】
第２の覆蓋４は、図２（ｂ）にも示すように、平面視長方形状で且つ前後方向中央が上方に湾曲するアーチ状の面板５によって主構成されており、この面板５の左右両側縁には、下方に突出する第２の凸部７が前後方向ほぼ全長に亘って設けられていて、これにより第２の覆蓋４の断面形状は全体として下に向けて略凹形を呈している。凸部７は面板５に一体成形されていてもよいが、面板５とは別体に成形された角材を面板５に前後方向全長にわたり接着接合することもできる。第２の凸部７の下方への突出長さは、第１の凸部６の上方への突出長さとほぼ等しい。
尚、第２の覆蓋４の長手方向の両端部には、図２の（ｃ）に示す凸部７’を設けておき、第１の覆蓋３にかぶさって、防臭性を確保することもできる。
【００１７】
第２の凸部７は、第１の凸部６の内側方で第１の覆蓋３上に配設されており、第１の凸部６の内側面と第２の凸部７の内側面とが対向している。なお、図４（ｂ）に示すように、第１の凸部６と第２の凸部７との間に、ゴム製等のシール部材１０を設けることで、より一層のシール性の向上と防臭性の向上とを図ることができる。また、各凸部６，７は、面板５と同じ曲率でアーチ状に湾曲している。面板５の上面は、上記凸部６，７以外の突出部位が存在せず、なだらかなアーチ状の曲面となされている。したがって、第１の覆蓋３と第２の覆蓋４とは、図１に示す状態から互いの重複範囲を増大する方向に相対的に左右に移動可能である。したがって、メンテナンス時などに水路１上を開放しようとするときは、並列配置された覆蓋を一端側に引き寄せるか、中央部より両側に引き寄せるか、または、第１及び第２の覆蓋３，４の各凸部６，７の係合を１カ所取り外し、その覆蓋を左右側方へスライドさせていくことにより、容易かつ迅速に広い開口を設けることができるとともに、作業完了後はその覆蓋を元に戻す方向にスライドさせることにより水路１上を密閉することが可能である。また、上記覆蓋４の凸部７の係合部は回動可能とされていてもよい。
【００１８】
また、本実施形態によれば、上に凹の第１の覆蓋３と下に凹の第２の覆蓋４とを互いに組み合わせた構造とすることにより、隣り合う蓋同士が一体化し、着脱が容易でありながら蓋間に隙間の発生がなく、雨水や薬液等の水槽１内への混入を防止することができるとともに、防臭性を向上することができる。
【００１９】
面板５の前後方向の断面形状は、図３（ａ）に示すアーチ状の他、図３（ｂ）に示すような山形であってもよく、また、図３（ｃ）に示すように前後方向一方側に向けて傾斜する片流れ形状であってもよい。これらのように覆蓋の上面を前後方向に傾斜させることで、上面の雨水等を前後方向外方に円滑に排水させることができる。前後外方に排水した雨水等が水槽１内に流入しないように、図３の各図に示すように、面板５の前後端部の近傍に左右幅全長に亘る脚部８を設け、この脚部８を蓋受け部２上に液密状に設置することが好ましい。脚部８は、ゴムなどの弾性体により構成してもよく、ＦＲＰ材やＦＦＵ材等によって構成することも可能である。
【００２０】
なお、各覆蓋３，４は、上記のように面板５によって主構成されたものの他、箱型の上面が平坦な構造であっても構わず、その他、適宜の構造とすることができる。
【００２１】
また、図４（ｃ）の変形実施例（請求項３に対応）に示すように、各凸部６，７の突出側側縁に、左右方向内方に向けて係合部１１を突設しておき、第１の覆蓋３上に第２の覆蓋４を配置した後、両覆蓋３，４を左右に引き延ばすことにより両覆蓋３，４の左右側縁同士を凹凸嵌合させることもできる。この実施例においては、第１の凸部６の内側部が、上記係合部１１が前後方向全長にわたって設けられることにより左右方向に沿う切断面において凹凸構造を呈しており、同様に、第２の凸部７の内側部は、第１の凸部６の内側部に対して相補の凹凸構造を呈しているものである。かかる構成によれば、第１及び第２の覆蓋３，４の接合部が一体化しており、どちらの蓋に荷重が載荷されても、蓋同士の上下方向の隙間が広がらず、雨水等の浸入をより確実に防止できる。
【００２２】
また、本発明の接合構造においては、図６に示す第２実施形態（請求項４，５に対応）のように、蓋受け部２の上面に、上方開口コ字状の枠部１２（ベース鋼材など）を左右方向に沿って設けることができる。この枠部１２は、水槽１の上方を覆うべき領域の左右幅全長に亘って形成することが好ましいが、一部にのみ設けることも可能である。また、枠部１２の前後内側の上方突出片１２ａの突出高さは、前後外側の上方突出片１２ｂの突出高さよりも低くすることが好ましい。この枠部１２は、鋼材やＦＲＰ引抜材等の適宜の部材によって構成できる。
【００２３】
一方、各覆蓋３，４の前後側縁には、下方に突出する脚部８を左右方向ほぼ全長に亘って設けることができる。なお、下側となる覆蓋３の脚部８の高さよりも、上側となる覆蓋４の脚部８の高さの方が高くなるように設定することが好ましい。
【００２４】
そして、各覆蓋３，４の脚部を、上記枠部１２内に左右方向移動可能に配置することができる。下側となる第１の覆蓋３の脚部８は、上側となる第２の覆蓋４の脚部８よりも前後方向内方に配置することができる。また、各覆蓋３，４の左右方向の摺動抵抗を低減したりシール性を確保する等のために、枠部１２の底面に低摩擦シートやゴム製等のシール板等のシート状部材１４を貼付することも可能である。さらに、全ての覆蓋の設置が完了した後、不慮に覆蓋が左右方向にスライドすることを防止するために、図５に示すように覆蓋３，４を上方から押さえる固定部材１５を枠部１２に設けることができる。この固定部材１５は、上側となる第２の覆蓋４のみに設けてもよく、下側となる第１の覆蓋３のみに設けてもよい。しかし、風等で覆蓋が飛散するのを防止する為には、少なくとも上方に配置される第２の覆蓋４を固定しておけばよい。
【００２５】
また、枠部１２は、好ましくは左右方向外方に移行するに従って徐々に下方に傾斜させるのがよい。また、枠部１２の左右外端部は、適宜の排水路に接続することが好ましい。
【００２６】
本実施形態によれば、各覆蓋３，４の上面は、雨水等を枠部１２内へ流出させるように傾斜面とされており、枠部１２が、覆蓋３，４の上面から流出された雨水等の排水路として機能するので、より確実に雨水等を排水して、水槽１内への雨水等の流入を防止できる。また、覆蓋同士の接合部の断面形状及びシール部材の配置例は、図５の（ｄ）乃至（ｇ）に示したものでもよい。
【００２７】
上記第１及び第２の凸部６，７の構造は、上記実施例に限定されるものではなく、図７に示す第３実施形態（請求項３に対応）のように、左右方向に沿う切断面において全体として略コ字状のシール部材１６，１７を第１及び第２の覆蓋の面板５の左右側縁にそれぞれ取付けることによって各凸部６，７を形成しても良い。また、図８に示す第４実施形態（請求項３に対応）のように、第１の覆蓋３の左右側縁の上面にシール部材を接着することにより第１の凸部６を形成し、第２の覆蓋４の左右側縁の下面にシール部材を接着することにより第２の凸部７を形成することもできる。
【００２８】
これら第３及び第４実施形態では、いずれも、第１の凸部６の内側面が左右方向に沿う切断面において凹凸構造を呈し、第２の凸部７の内側面は、第１の凸部６の内側面に対して相補の凹凸構造を呈し、第１及び第２の凸部６，７の内側面同士が凹凸嵌合している。
【００２９】
以上の各実施形態によれば、隣接配置される２枚の蓋が一体化し、防臭性並びに防液性を確保できるとともに、蓋の着脱も左右方向にスライドさせるのみで容易かつ迅速に行うことができる。さらに、凹凸嵌合構造とすることによって、蓋間に上下方向の隙間が発生することがなく、雨水や薬液等の槽内への混入を確実に防止できる。
【００３０】
本発明は、上記各実施形態に限定されるものではなく、適宜設計変更することができる。例えば、必要に応じてゴム製等のシールパッキンを所要部位に追加してもよい。また、各構成部材の材料等も特定ものに限定されるものではなく、要求される防臭性や防液性の程度や、施工性、加工性等を考慮しつつ選定することが可能である。
【発明の効果】
本発明によれば、覆蓋上の雨水や薬液が覆蓋同士の隙間から流入してしまうことを確実に阻止し得るとともに、蓋の脱着が移動が容易な覆蓋の接合構造として作業効率の向上等を図ることができる。
【図面の簡単な説明】
【図１】本発明の第１実施形態に係る覆蓋の接合構造を示す簡略斜視図である。
【図２】同接合構造に用いた覆蓋の斜視図であって、（ａ）は第１の覆蓋を示し、（ｂ）は第２の覆蓋を示す。
【図３】本発明に用いる覆蓋の前後方向断面構造の例を示し、（ａ）はアーチ蓋の断面図、（ｂ）は山形蓋の断面図、（ｃ）は片流れ形蓋の断面図である。
【図４】覆蓋の凸部構造の各種実施例を示す断面図である。
【図５】覆蓋の接合部の断面形状及びシール部材の配置の各種実施例を示す断面図である。
【図６】本発明の第２実施形態に係る覆蓋の接合構造を示し、（ａ）は覆蓋の前後端部の平面図、（ｂ）は（ａ）のＡ−Ａ線断面図、（ｃ）は（ａ）のＢ−Ｂ線断面図である。
【図７】本発明の第３実施形態に係る覆蓋の接合構造の要部拡大断面図である。
【図８】本発明の第４実施形態に係る覆蓋の接合構造の要部拡大断面図である。
【図９】覆蓋の接合構造の一例を示す一部破断斜視図である。
【図１０】同接合構造の要部拡大断面図である。
【符号の説明】
１槽
２蓋受け部
３第１の覆蓋
４第２の覆蓋
６第１の凸部
７第２の凸部
８脚部
１２枠部
２０接合部（シール部材）
２１基部（突堤部）
２２張出部
２３，２３’ 第２のシール部材
２４第１のシール部材
２５第３のシール部材
２８第４のシール部材
３１第１の突堤部
３２第２の突堤部
３３カバー部材
３４締結部材
３５支持部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a joining structure of a cover lid constructed to cover a sewage tank and a sewage channel installed in a sewage treatment facility or a septic tank and a sewage channel installed in a water treatment facility.
[0002]
[Prior art]
As this kind of conventional cover cover joining structure, there is one described in JP-A-2001-311210. In this conventional joining structure, the left and right side edges of adjacent cover covers are attached to each other, and one support cover is provided with a support portion that supports the side edge of the top plate of the other cover cover from below. The portion is provided over the entire length of the top plate in the front-rear direction, and a seal member is provided between the support portion and the top plate of the other cover lid, and the seal member is provided over the entire length of the top plate in the front-rear direction. Yes. With this configuration, the sealing member provided on the support portion of one cover is brought into close contact with the lower surface of the top plate of the adjacent cover, and a sufficient sealing effect is obtained. Even if it is slightly deviated, no gap is produced and the sealing effect is maintained.
[0003]
[Problems to be solved by the invention]
By the way, when the water tank or water channel of the water treatment facility is covered with a plurality of cover covers, it is necessary to more reliably prevent the inflow of rainwater from the gaps between the cover covers in order to prevent water contamination. There is also a need to prevent mischief attempts to put chemicals into the aquarium. However, according to the above-described conventional joining structure, the sealing performance is ensured when the cover is stationary, but for example, a person is placed on one cover (the cover having a support) on the lower side. When a load is applied to the cover due to, for example, getting on the cover, the cover is bent downward and a gap is generated between the other cover, and rainwater or chemicals may flow from the gap. .
[0004]
For example, as shown in FIGS. 9 and 10 , convex portions 101 (piers) projecting upward are provided on the left and right side edges of the cover 100, and both convex portions 101 of the adjacent cover 100 are U-shaped in cross section from above. It is conceivable that the cover member 102 is covered with the cover member 102 and the cover member 102 prevents the inflow of rainwater or the like from the gap between the two cover lids. Therefore, it is difficult to easily remove and install only the cover of the necessary part at the time of inspection, etc., or to move the entire cover, etc., when a person is placed on one cover, etc. The load cannot be supported only by the cover member 102, and there is a possibility that rainwater or the like flows in due to a gap between the lids.
[0005]
Accordingly, an object of the present invention is to provide a cover-joining structure that can reliably prevent rainwater and chemicals on the cover from flowing in through the gap between the covers, and that the cover can be easily attached and detached. To do.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention takes the following technical means.
[0007]
(First invention: claims 1 to 4 )
That is, according to the present invention, in the joining structure of the first and second cover covers that are installed between the cover receiving portions that are separated from each other in the front-rear direction and that are adjacent to each other on the left and right sides, Is provided with a first convex portion (projection portion) projecting upward over the entire length in the front-rear direction, and a second projecting portion projecting downward on the left and right side edges on the first cover side of the second cover. (Preferably over substantially the entire length in the front-rear direction), and the second protrusion is disposed on the first cover lid inward in the left-right direction of the first protrusion, The cover lid joining structure is characterized in that the inner part of the first convex part and the inner part of the second convex part are opposed to each other. According to such a joining structure of the present invention, rainwater and chemicals on the first cover do not flow into the gap between the cover by being dammed by the first convex portions on the left and right side edges. Moreover, since the 2nd convex part of the left-right side edge of a 2nd cover is arrange | positioned on the 1st cover on the left-right inner side of a 1st convex part, the rain water and chemical | medical solution on a 2nd cover Even if it flows out in the left-right direction, it flows out onto the first cover. Therefore, rainwater or the like on the first and second cover lids does not flow from the gap between the cover covers. Furthermore, since the inner portions of the first and second convex portions are opposed to each other, even if each cover lid is slid in the opposite direction in the direction in which the first and second cover portions are separated from each other, both convex portions are It is prevented that a gap is generated by engagement. Moreover, since the convex part is provided over substantially the entire length in the front-rear direction, the bending rigidity of the cover lid is improved by this convex part, and deformation due to load can be suppressed. Furthermore, since it is not necessary to provide a cover material between adjacent cover covers, the cover cover can be easily attached and detached.
[0008]
The first and second convex portions may be integrally formed with the cover, or may be formed of a square face plate fixed to the upper surface of the flat face plate or the top plate constituting the cover with an adhesive or the like. It is. Moreover, the material of each convex part may be the same as a face plate, and may be comprised with elastic bodies, such as rubber | gum.
[0009]
In the joint structure of the present invention, the first convex portions are provided on the left and right side edges of the first cover, the second convex portions are provided on the left and right side edges of the second cover, and the first cover and the first cover The two cover lids can be alternately installed between the lid receiving portions, and the second cover lid can be installed on the first cover lid on both the left and right sides. According to this, when opening a water tank or a water channel and sliding the cover on the left and right ends of the plurality of covers toward the other end, the first convex portion of the first cover As a result of the relative sliding of the first and second cover lids so that the second convex portion of the second cover cover is separated, the range in which adjacent cover covers overlap with each other increases, so that the left and right widths of the entire plurality of cover covers Can be narrowed to form an opening.
[0010]
Moreover, in the joining structure of the present invention, the inner portion of the first convex portion exhibits a concave-convex structure on the cut surface along the left-right direction, and the inner portion of the second convex portion is formed on the inner portion of the first convex portion. On the other hand, a complementary concavo-convex structure is exhibited, and the inner portions of the first and second convex portions can be concavo-convexly fitted. According to this, the inner portions of the first and second convex portions are concavo-convexly fitted to each other so that adjacent cover lids are integrated and easy to attach / detach, but a gap is generated between the cover lids. In addition, it is possible to more reliably prevent rainwater, chemicals, etc. from entering the water tank or waterway, and to improve load bearing performance.
[0011]
In addition, the lid receiving portion is provided with an upper opening U-shaped frame portion along the left-right direction, and the front and rear side edges of each cover lid are provided with legs protruding downward substantially over the entire length in the left-right direction. The leg portions of the respective cover lids can be arranged in the frame portion so as to be movable in the left-right direction. According to this, each cover can be moved in the left-right direction easily and reliably by guiding the slide in the left-right direction of each cover with the frame portion. Furthermore, by sealing the front and rear end portions of the cover lid with the leg portions, it is possible to improve deodorization and to prevent rainwater and the like from flowing into the water tank and water channel from the front and rear end portions of the cover lid.
[0012]
Moreover, while making the upper surface of each cover into an inclined surface so that a liquid may flow out to a frame part, a frame part can be functioned as a drainage channel of the liquid flowed out from the upper surface of the cover. According to this, rain water and chemicals on the cover can be quickly discharged to the frame portion and drained so as not to flow into the water tank or water channel.
Note that the planar shape of the cover may be a slide structure, and may be a trapezoid, a sector, a semicircle, or the like in addition to a rectangle.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 and FIG. 4 (a) show a cover lid joining structure according to the first embodiment of the present invention (particularly, claims 1 and 2). In the present embodiment, a water tank or a water channel 1 provided in a water treatment facility, a sewage treatment facility, or the like is formed by a concrete housing 2 that is separated from the front and back, and the front and rear housings 2 serve as lid receiving portions. In a large-scale reservoir or water purification tank, a plurality of H-shaped steels extending in the left-right direction can be arranged in parallel in the front-rear direction, and this steel material can be used as a lid receiving portion. In addition, the lid receiving portion can have an appropriate configuration.
[0014]
A plurality of cover lids 3, 4 are installed adjacent to each other in the left-right direction between the lid receiving portions 2 separated in the front-rear direction. In the present embodiment, the first cover 3 arranged on the lower side and the second cover 4 placed on the first cover 3 are alternately arranged in the left-right direction. The width of each cover 3 in the front-rear direction is slightly larger than the distance between the front and rear cover receivers 2, and the front and rear ends of each cover 3 can be installed on the cover receiver 2. The lateral width of each cover 3 may be appropriate, and the lateral width of the first cover 3 and the lateral width of the second cover 4 may be the same or different.
[0015]
As shown in FIG. 2A, the first cover 3 is mainly composed of an arch-shaped face plate 5 which is rectangular in plan view and whose center in the front-rear direction is curved upward. A first convex portion 6 projecting upward is provided on the edge over substantially the entire length in the front-rear direction, whereby the cross-sectional shape of the first cover 3 is substantially concave as a whole. The convex portion 6 may be integrally formed with the face plate 5, but a square member formed separately from the face plate 5 can be bonded and joined to the face plate 5 over the entire length in the front-rear direction. The convex portion 6 functions not only as a jetty (dam) for blocking rainwater or the like but also as a reinforcing beam for improving the bending rigidity of the face plate 5. The protruding height of the protrusion 6 may be such that rainwater or the like does not enter between the lids. When the height of the convex portions 5 and 6 is increased, the vertical width between the face plates 5 of the first and second cover lids is increased, and in particular, a problem is likely to occur in the sealing performance at the front and rear side edges. The protruding heights of 5 and 6 are preferably determined in consideration of the sealing property. When the rigidity of each cover 3, 4 is insufficient, as shown in FIG. 4 (b), a reinforcing beam 9 that extends over the entire length in the front-rear direction can be provided in the middle in the left-right direction (for example, the center in the left-right direction) of the face plate 5. . The structure of the cover including these face plates 5 can be applied to all embodiments described later.
[0016]
As shown in FIG. 2B, the second cover 4 is mainly composed of an arch-shaped face plate 5 that is rectangular in plan view and whose center in the front-rear direction is curved upward. A second convex portion 7 projecting downward is provided on the edge over almost the entire length in the front-rear direction, so that the cross-sectional shape of the second cover 4 is generally concave downward as a whole. Yes. The convex portion 7 may be integrally formed with the face plate 5, but a square member formed separately from the face plate 5 can be bonded and joined to the face plate 5 over the entire length in the front-rear direction. The downward protruding length of the second convex portion 7 is substantially equal to the upward protruding length of the first convex portion 6.
In addition, the convex part 7 'shown to (c) of FIG. 2 is provided in the both ends of the longitudinal direction of the 2nd cover 4, and it can cover the 1st cover 3 and can ensure deodorizing property. .
[0017]
The second convex portion 7 is disposed on the first cover 3 inside the first convex portion 6, and the inner surface of the first convex portion 6 and the inner surface of the second convex portion 7 are arranged. Are facing each other. In addition, as shown in FIG.4 (b), by providing the sealing member 10 made from rubber | gum between the 1st convex part 6 and the 2nd convex part 7, the improvement of a further sealing performance is possible. It is possible to improve the deodorizing property. The convex portions 6 and 7 are curved in an arch shape with the same curvature as the face plate 5. The upper surface of the face plate 5 is a gentle arch-shaped curved surface without projecting portions other than the convex portions 6 and 7. Therefore, the 1st cover 3 and the 2nd cover 4 can move to right and left relatively in the direction which increases a mutual overlap range from the state shown in FIG. Therefore, when opening the water channel 1 during maintenance or the like, the cover arranged in parallel is pulled toward one end, pulled toward both sides from the center, or the first and second covers 3 and 4 By disengaging one of the protrusions 6 and 7 and sliding the cover to the left and right sides, a wide opening can be provided easily and quickly. It is possible to seal the water channel 1 by sliding in the returning direction. Moreover, the engaging part of the convex part 7 of the said cover 4 may be made rotatable.
[0018]
In addition, according to the present embodiment, by adopting a structure in which the first cover 3 that is concave upward and the second cover 4 that is concave downward are combined with each other, the adjacent lids are integrated and can be easily attached and detached. However, there is no gap between the lids, and it is possible to prevent rainwater or chemicals from entering the water tank 1 and to improve deodorization.
[0019]
The cross-sectional shape of the face plate 5 in the front-rear direction may be a mountain shape as shown in FIG. 3B in addition to the arch shape shown in FIG. 3A, and the front-rear direction as shown in FIG. A single-flow shape inclined toward one side in the direction may be used. By tilting the upper surface of the cover lid in the front-rear direction as described above, rainwater or the like on the upper surface can be smoothly drained outward in the front-rear direction. In order to prevent rainwater or the like drained outwardly from the front and rear from flowing into the water tank 1, as shown in each drawing of FIG. It is preferable to install the portion 8 on the lid receiving portion 2 in a liquid-tight manner. The leg portion 8 may be made of an elastic body such as rubber, or may be made of an FRP material, an FFU material, or the like.
[0020]
Each of the cover lids 3 and 4 may have a box-shaped upper surface in addition to the main structure of the face plate 5 as described above, or may have an appropriate structure.
[0021]
Further, as shown in a modified embodiment of FIG. 4C (corresponding to claim 3), an engaging portion 11 is provided on the protruding side edge of each of the convex portions 6 and 7 inward in the left-right direction. In addition, after the second cover 4 is disposed on the first cover 3, the left and right edges of the cover 3, 4 can be unevenly fitted to each other by extending the cover 3, 4 to the left and right. . In this embodiment, the inner portion of the first convex portion 6 has a concavo-convex structure on the cut surface along the left-right direction by providing the engaging portion 11 over the entire length in the front-rear direction. The inner part of the convex part 7 has a concavo-convex structure complementary to the inner part of the first convex part 6. According to such a configuration, the joint portions of the first and second cover lids 3 and 4 are integrated, and the load between the lids does not widen the vertical gap between the lids, such as rainwater. Intrusion can be prevented more reliably.
[0022]
Further, in the joining structure of the present invention, as in the second embodiment shown in FIG. 6 (corresponding to claims 4 and 5), the upper opening U-shaped frame portion 12 (base) is formed on the upper surface of the lid receiving portion 2. Steel material etc.) can be provided along the left-right direction. The frame portion 12 is preferably formed over the entire length of the left and right widths of the region that should cover the upper portion of the water tank 1, but it can also be provided only in part. Moreover, it is preferable that the protruding height of the upper protruding piece 12a on the front and rear inner sides of the frame portion 12 is lower than the protruding height of the upper protruding piece 12b on the front and rear outer sides. This frame part 12 can be comprised with appropriate members, such as steel materials and a FRP drawing material.
[0023]
On the other hand, leg portions 8 projecting downward can be provided on the front and rear side edges of the cover lids 3 and 4 over almost the entire length in the left-right direction. In addition, it is preferable to set so that the height of the leg portion 8 of the cover lid 4 on the upper side is higher than the height of the leg portion 8 of the cover lid 3 on the lower side.
[0024]
And the leg part of each cover 3 and 4 can be arrange | positioned in the said frame part 12 so that a left-right movement is possible. The leg 8 of the first cover 3 that is the lower side can be disposed inward in the front-rear direction than the leg 8 of the second cover 4 that is the upper side. Further, in order to reduce the sliding resistance in the left-right direction of each cover 3, 4 or to ensure sealing performance, a sheet-like member 14 such as a low friction sheet or a rubber-made seal plate is provided on the bottom surface of the frame portion 12. It is also possible to affix. Further, after the installation of all the cover covers is completed, in order to prevent the cover covers from being accidentally slid in the left-right direction, a fixing member 15 that holds the cover covers 3 and 4 from above as shown in FIG. Can be provided. The fixing member 15 may be provided only on the second cover 4 on the upper side, or may be provided only on the first cover 3 on the lower side. However, in order to prevent the cover from being scattered by wind or the like, it is only necessary to fix the second cover 4 disposed at least above.
[0025]
Further, the frame portion 12 is preferably inclined gradually downward as it moves outward in the left-right direction. Moreover, it is preferable that the left and right outer end portions of the frame portion 12 are connected to an appropriate drainage channel.
[0026]
According to this embodiment, the upper surfaces of the cover lids 3 and 4 are inclined so as to allow rainwater or the like to flow into the frame portion 12, and the frame portions 12 flowed out of the upper surfaces of the cover lids 3 and 4. Since it functions as a drainage channel for rainwater or the like, it is possible to drain rainwater or the like more reliably and prevent inflow of rainwater or the like into the aquarium 1. Further, the cross-sectional shape of the joint portion between the cover covers and the arrangement example of the seal member may be those shown in (d) to (g) of FIG.
[0027]
The structure of the first and second convex portions 6 and 7 is not limited to the above-described example, but extends in the left-right direction as in the third embodiment (corresponding to claim 3) shown in FIG. The convex portions 6 and 7 may be formed by attaching substantially U-shaped sealing members 16 and 17 to the left and right edges of the face plate 5 of the first and second cover lids on the cut surface as a whole. Further, as in the fourth embodiment shown in FIG. 8 (corresponding to claim 3), the first convex portion 6 is formed by adhering a seal member to the upper surfaces of the left and right side edges of the first cover lid 3, The 2nd convex part 7 can also be formed by adhere | attaching a sealing member on the lower surface of the left-right side edge of the 2nd cover 4.
[0028]
In each of the third and fourth embodiments, the inner surface of the first convex portion 6 has a concavo-convex structure on the cut surface along the left-right direction, and the inner surface of the second convex portion 7 is the first convex portion. The inner surface of the portion 6 has a complementary concavo-convex structure, and the inner surfaces of the first and second convex portions 6 and 7 are concavo-convexly fitted.
[0029]
According to each of the embodiments described above, two lids arranged adjacent to each other can be integrated to ensure odor prevention and liquid prevention, and the lid can be easily attached and detached simply by sliding in the left-right direction. it can. Furthermore, by adopting the concave-convex fitting structure, there is no gap in the vertical direction between the lids, and it is possible to reliably prevent rainwater or chemicals from entering the tank.
[0030]
The present invention is not limited to the above-described embodiments, and the design can be changed as appropriate. For example, a seal packing made of rubber or the like may be added to a required portion as necessary. Moreover, the material of each structural member is not limited to a specific material, and can be selected in consideration of the required degree of deodorization and liquid resistance, workability, workability, and the like.
【The invention's effect】
According to the present invention, it is possible to reliably prevent rainwater and chemicals on the cover from flowing into the gap between the covers, and to improve work efficiency as a cover-joint structure in which the cover can be easily attached and detached. You can plan.
[Brief description of the drawings]
FIG. 1 is a simplified perspective view showing a cover lid joining structure according to a first embodiment of the present invention.
FIGS. 2A and 2B are perspective views of a cover used for the joint structure, in which FIG. 2A shows a first cover and FIG. 2B shows a second cover;
FIG. 3 shows an example of a cross-sectional structure in the front-rear direction of a cover used in the present invention, (a) is a cross-sectional view of an arch cover, (b) is a cross-sectional view of a chevron cover, and (c) is a cross-sectional view of a single-flow type cover. is there.
FIG. 4 is a cross-sectional view showing various examples of the convex structure of the cover.
FIG. 5 is a cross-sectional view showing various examples of the cross-sectional shape of the joint portion of the cover and the arrangement of the seal member.
6A and 6B show a cover joining structure according to a second embodiment of the present invention, wherein FIG. 6A is a plan view of the front and rear ends of the cover, FIG. 6B is a cross-sectional view taken along line AA in FIG. ) Is a sectional view taken along line BB in FIG.
FIG. 7 is an enlarged cross-sectional view of a main part of a cover lid joining structure according to a third embodiment of the present invention.
FIG. 8 is an enlarged cross-sectional view of a main part of a cover lid joining structure according to a fourth embodiment of the present invention.
FIG. 9 is a partially broken perspective view showing an example of a cover lid joining structure.
FIG. 10 is an enlarged cross-sectional view of a main part of the joint structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tank 2 Lid receiving part 3 1st cover 4 2nd cover 6 1st convex part 7 2nd convex part 8 Leg part 12 Frame part 20 Joint part (seal member)
21 Base (jetty)
22 Overhang portions 23, 23 ′ Second seal member 24 First seal member 25 Third seal member 28 Fourth seal member 31 First jetty portion 32 Second jetty portion 33 Cover member 34 Fastening member 35 Supporting part

Claims

In the joining structure of the first and second cover lids that are installed between the lid receiving portions that are separated in the front-rear direction and that are adjacent to each other on the left and right sides,
The left and right side edges of the first cover cover are provided with first protrusions that protrude upward over substantially the entire length in the front-rear direction, and the left and right side edges of the second cover cover protrude downward. The second convex portion is disposed on the first cover lid inwardly in the left-right direction of the first convex portion, and the inner side portion of the first convex portion and the second convex portion are provided. The inner part of the convex part is opposite,
The lid receiving portion is provided with a U-shaped frame portion having an upper opening along the left-right direction, and leg portions projecting downward are provided on the front and rear side edges of each cover lid over almost the entire length in the left-right direction. The leg portion of the first cover lid that is on the side is formed so as to be positioned inward in the front-rear direction relative to the leg portion of the second cover lid that is the upper side, and the leg portion of each cover lid moves in the left-right direction within the frame portion A cover-joining structure characterized by being arranged in a possible manner.

In the joint structure between the first and second cover lids, which are installed between the lid receiving portions separated in the front-rear direction and are adjacent to each other on the left and right sides,
The left and right side edges of the first cover cover are provided with first protrusions that protrude upward over substantially the entire length in the front-rear direction, and the left and right side edges of the second cover cover protrude downward. The second convex portion is disposed on the first cover lid inwardly in the left-right direction of the first convex portion, and the inner side portion of the first convex portion and the second convex portion are provided. The inner part of the convex part is opposite,
The lid receiving portion is provided with a U-shaped frame portion having an upper opening along the left-right direction, and leg portions projecting downward are provided on the front and rear side edges of each cover lid over almost the entire length in the left-right direction. than the leg portion of the first covering of the side legs of the second covering as the upper is set to become longer so, the legs of each covering is disposed to be horizontal movement on said frame portion The cover-joining structure characterized by having it.

In the joint structure between the first and second cover lids, which are installed between the lid receiving portions separated in the front-rear direction and are adjacent to each other on the left and right sides,
The left and right side edges of the first cover cover are provided with first protrusions that protrude upward over substantially the entire length in the front-rear direction, and the left and right side edges of the second cover cover protrude downward. The second convex portion is disposed on the first cover lid inwardly in the left-right direction of the first convex portion, and the inner side portion of the first convex portion and the second convex portion are provided. The inner part of the convex part is opposite,
The lid receiving portion is provided with an upper opening U-shaped frame portion along the left-right direction, and the front and rear side edges of each cover lid are provided with leg portions projecting downward over the entire length in the left-right direction. The leg part of the cover is arranged in the frame part so as to be movable in the left-right direction,
The inner part of the first convex part exhibits a concave-convex structure on the cut surface along the left-right direction, the inner part of the second convex part exhibits a concave-convex structure complementary to the inner part of the first convex part, and The cover lid joining structure, wherein the inner portions of the first and second convex portions are concavo-convexly fitted.

In the joint structure between the first and second cover lids, which are installed between the lid receiving portions separated in the front-rear direction and are adjacent to each other on the left and right sides,
The left and right side edges of the first cover cover are provided with first protrusions that protrude upward over substantially the entire length in the front-rear direction, and the left and right side edges of the second cover cover protrude downward. The second convex portion is disposed on the first cover lid inwardly in the left-right direction of the first convex portion, and the inner side portion of the first convex portion and the second convex portion are provided. The inner part of the convex part is opposite,
The lid receiving portion is provided with an upper opening U-shaped frame portion along the left-right direction, and the front and rear side edges of each cover lid are provided with leg portions projecting downward over the entire length in the left-right direction. The leg part of the cover is arranged in the frame part so as to be movable in the left-right direction,
The cover lid joining structure, wherein an upper surface of each cover is an inclined surface so that the liquid flows out to the frame, and the frame functions as a drainage channel for the liquid that has flowed out from the upper surface of the cover.