JP5726507B2 - Cylindrical filtration tank and rainwater treatment device - Google Patents

Cylindrical filtration tank and rainwater treatment device Download PDF

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JP5726507B2
JP5726507B2 JP2010285874A JP2010285874A JP5726507B2 JP 5726507 B2 JP5726507 B2 JP 5726507B2 JP 2010285874 A JP2010285874 A JP 2010285874A JP 2010285874 A JP2010285874 A JP 2010285874A JP 5726507 B2 JP5726507 B2 JP 5726507B2
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cylinder
rainwater
inner cylinder
pipe
cylindrical body
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JP2012132227A (en
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和也 牧田
和也 牧田
卓也 高島
卓也 高島
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Hokukon Co Ltd
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Hokukon Co Ltd
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Description

本発明は、濾材が収容される内筒体を有底の外筒体内に立設状態に納設してなる筒状濾過槽に関するものである。又、該筒状濾過槽を用いて構成された雨水処理装置に関するものである。   The present invention relates to a cylindrical filtration tank in which an inner cylinder in which a filter medium is accommodated is stood in an upright state in a bottomed outer cylinder. Further, the present invention relates to a rainwater treatment apparatus configured using the cylindrical filtration tank.

降雨による道路排水や家屋の屋根等に降り注いだ雨水は、側溝等の雨水排水路を通じて河川等に放流されたり下水道に排出されているが、かかる放流や排出の前に汚濁物質を濾過して雨水を浄化するように構成された雨水濾過装置の一例として、特許文献1が開示する筒状雨水濾過器が提案されている。   Rainwater that falls on road drainage and roofs of houses due to rainfall is discharged into rivers, etc. through rainwater drainage channels such as gutters, etc., but is discharged into sewers. As an example of a rainwater filtration device configured to purify water, a cylindrical rainwater filter disclosed in Patent Document 1 has been proposed.

該筒状雨水濾過器aは図29に示すように、有底の外筒体b内に内筒体cを立設してなり、該外筒体bは、下端dが底板eで閉塞され且つ上端fが蓋体gで開閉可能に閉蓋されるものであり、又該内筒体cは、該外筒体bよりも高さが低く形成され下端に連通部hが形成されてなり該底板e上に同心状に立設されるものであった。そして該内筒体cの上部jに、前記外筒体bを貫通して設けられた流出管kが連結されると共に、前記外筒体bに、該流出管kよりも高い位置で流入管mが連結されてなり、前記内筒体cの内部nには、着脱自在な下部フィルター板pと上部フィルター板qとで区画された空間rに濾材sが収容されてなるものであった。そして、前記流入管mから外筒体bと内筒体cとの間の流入空間vに流入した雨水は、前記連通部hから内筒体c内に流入して前記濾材sを下方から上方へ通過する間に流入雨水中の有害物質が吸着除去され、前記流出管kから外部に排出されるようになされていた。又、集中豪雨等によって前記流入管mから流入する排水の量が増加し、外筒体bと内筒体cとの間に溜まった排水の水位が上昇して内筒体cの上端tを越えると、流入管mから流入した排水の一部は、直接、流出管kから排出されるものであった。   As shown in FIG. 29, the tubular rainwater filter a has an inner cylinder c standing upright in a bottomed outer cylinder b, and the outer cylinder b is closed at its lower end d by a bottom plate e. Further, the upper end f is closed with a lid g so as to be opened and closed, and the inner cylinder c is formed lower in height than the outer cylinder b, and a communication portion h is formed at the lower end. It was erected concentrically on the bottom plate e. An outflow pipe k provided through the outer cylinder b is connected to the upper part j of the inner cylinder c, and an inflow pipe is connected to the outer cylinder b at a position higher than the outflow pipe k. m is connected, and the filter medium s is accommodated in the space n defined by the detachable lower filter plate p and the upper filter plate q in the inner n of the inner cylinder c. Then, rainwater that has flowed into the inflow space v between the outer cylinder b and the inner cylinder c from the inflow pipe m flows into the inner cylinder c from the communication portion h, and moves the filter medium s upward from below. During the passage, harmful substances in the inflowing rainwater are adsorbed and removed and discharged to the outside from the outflow pipe k. In addition, the amount of drainage flowing from the inflow pipe m increases due to heavy rain, etc., and the level of drainage accumulated between the outer cylinder b and the inner cylinder c rises, and the upper end t of the inner cylinder c is increased. When exceeded, a part of the waste water flowing in from the inflow pipe m was directly discharged from the outflow pipe k.

このように該筒状雨水濾過器aは、外筒体b内に内筒体cを立設した構成を有するため、道路に沿って構築された側溝に対する前記流入管mの連結部uの地中内での深さに応じて該外筒体bと該内筒体cの高さを所要に設定すれば、該側溝を流下する雨水中の汚濁物質を濾過できる所要高さの筒状雨水濾過器aを構成できる利点があった。   As described above, the cylindrical rainwater filter a has a configuration in which the inner cylinder c is erected in the outer cylinder b, so that the ground of the connecting portion u of the inflow pipe m with respect to the side groove constructed along the road is provided. If the height of the outer cylinder b and the inner cylinder c is set as required according to the depth in the inside, cylindrical rainwater with a required height that can filter the pollutant in the rainwater flowing down the side groove There was an advantage that filter a could be constituted.

ところで側溝の深さは、側溝に流入する雨水の流入量を考慮して設定されるものであるため、前記筒状雨水濾過器aの必要な高さは、その施工場所に応じて異なるものであり一定していない。そのため、雨水濾過の要となる濾材収容構造部を含む所要高さの筒状雨水濾過器aの全体を、施工場所に応じて個別的に設計製作せざるを得ず、施工性が悪く施工コストの上昇を招く問題があった。   By the way, since the depth of the side groove is set in consideration of the amount of rainwater flowing into the side groove, the required height of the tubular rainwater filter a differs depending on the construction site. There is not constant. For this reason, the entire cylindrical rainwater filter a having the required height including the filter medium housing structure, which is the key to rainwater filtration, must be individually designed and manufactured according to the construction location, resulting in poor workability and construction costs. There was a problem that led to a rise.

又、前記筒状雨水濾過器aは、前記流入管mから流入する雨水の量が多い場合には、排水の一部が直接、流出管kから排出される構成であったため、濾過処理されない雨水が流出管から排出されてしまう不具合があった。   In addition, the cylindrical rainwater filter a is configured such that when the amount of rainwater flowing in from the inflow pipe m is large, a part of the drainage is directly discharged from the outflow pipe k. Was discharged from the outflow pipe.

実用新案登録第3148921号公報Utility Model Registration No. 3148921

本発明は、前記従来の問題点に鑑みて開発されたものであり、
(1) 筒状濾過槽を構築する際の施工手間の削減や施工コストの低減を期し得る筒状濾過槽と雨水処理装置の提供を課題とするものである。
The present invention has been developed in view of the above conventional problems,
(1) An object of the present invention is to provide a cylindrical filtration tank and a rainwater treatment apparatus that can reduce the labor and construction cost when constructing the cylindrical filtration tank.

(2) 又本発明は、雨水排水路からの被処理雨水を効率的に濾過できて、濾過処理された綺麗な処理雨水のみを筒状濾過槽外に排出させることのできる雨水処理装置の提供を課題とするものである。より具体的には、処理雨水をそのまま河川に流すときには河川の汚濁防止に寄与でき、該処理雨水を雨水貯留槽に貯留するときにはこれを中水として利用でき、更に、該処理雨水を地下浸透層で地下浸透させるときには、該処理雨水が綺麗であることから地下浸透層を目詰まりさせにくく、長期間に亘って地下浸透機能を維持でき、加えて、綺麗な処理雨水を地下浸透させることで地下水を汚染することがなく、これらによって地下水の涵養を長期間に亘って良好に行なうことのできる雨水処理装置の提供を課題とするものである。 (2) Further, the present invention provides a rainwater treatment apparatus that can efficiently filter the treated rainwater from the rainwater drainage channel and discharge only the clean treated rainwater that has been filtered out of the cylindrical filtration tank. Is an issue. More specifically, when the treated rainwater flows directly into the river, it can contribute to the prevention of pollution of the river, and when the treated rainwater is stored in the rainwater storage tank, it can be used as intermediate water. When it is infiltrated underground, the treated rainwater is beautiful, so it is difficult to clog the underground infiltration layer, and the underground infiltration function can be maintained over a long period of time. Therefore, it is an object of the present invention to provide a rainwater treatment apparatus that can recharge groundwater well over a long period of time without contaminating the water.

(3) 又本発明は、処理雨水を、地下浸透を優先させて雨水貯留槽に一時的に貯留させることができ、これによって、河川への急激な雨水流出を抑制できる雨水処理装置の提供を課題とするものである。 (3) The present invention also provides a rainwater treatment apparatus that can temporarily store treated rainwater in a rainwater storage tank giving priority to underground infiltration, thereby suppressing a sudden rainwater outflow to a river. It is to be an issue.

前記課題を解決するため、本発明に係る筒状濾過槽構は、有底で上端開放部が閉蓋可能となされた外筒体と、該外筒体内に立設状態に納設され且つ上端が開放された内筒体との間をなす流入空間に、雨水の排水路からの被処理雨水が流入し、この被処理雨水が、該内筒体の下部側に設けられた取水部から該内筒体内に導入されるようになされると共に、該内筒体内で濾過処理された処理雨水が、該内筒体の側壁部に連結され且つ前記外筒体の側壁部を貫通する流出管を通して排出されるようになされており、前記内筒体は、上端が開放され且つ前記内筒体の下側部分を構成する筒体を具え、該筒体の下部側に前記取水部が設けられると共に、該筒体の内部には、該取水部の上側に位置させて濾材が収容されるものとなされており、又、該筒体の側壁部には、前記流出管を該筒体の内部に連通状態に連結するための側部連結部が設けられており、該筒体の上部分には、前記内筒体の上側部分を構成する継足し筒の下部分を連通状態に連結してなる。又、前記取水部を形成するための台座装置を具えており、該台座装置は、前記外筒体の底面で所要間隔を置いて立設された支柱ボルトの夫々を、前記内筒体の下端を支持する支持片に設けられた挿通孔に挿通させると共に該支持片を、該支柱ボルトに螺合されたナットによって上下から挾持してなり、前記ナットの螺合位置を変更することによって該支持片の高さ調整を行い得るようになされており、又、前記ナットと前記筒体の内周面又は外周面との当接による係合によって前記内筒体の水平方向での移動が阻止されていることを特徴とするものである。   In order to solve the above-described problems, a cylindrical filtration tank structure according to the present invention includes an outer cylinder body having a bottom and an upper end opening portion that can be closed, and an upper end that is placed in an upright state in the outer cylinder body. The rainwater to be treated from the drainage channel of rainwater flows into the inflow space formed between the open inner cylinder and the treated rainwater from the intake section provided on the lower side of the inner cylinder. In addition to being introduced into the inner cylinder, treated rainwater filtered in the inner cylinder passes through an outflow pipe connected to the side wall of the inner cylinder and penetrating the side wall of the outer cylinder. The inner cylinder is provided with a cylinder whose upper end is open and which forms the lower part of the inner cylinder, and the water intake section is provided on the lower side of the cylinder. In the cylinder, a filter medium is accommodated so as to be positioned above the water intake portion. The side wall portion is provided with a side connection portion for connecting the outflow pipe to the inside of the cylindrical body in a communicating state, and the upper portion of the cylindrical body constitutes the upper portion of the inner cylindrical body The lower part of the connecting cylinder is connected in a communicating state. In addition, a pedestal device for forming the water intake portion is provided, and the pedestal device is configured so that each of the support bolts erected at a predetermined interval on the bottom surface of the outer cylindrical body is connected to the lower end of the inner cylindrical body. The support piece is inserted through an insertion hole provided in the support piece and supported by the nut bolted to the support bolt from above and below, and the support position is changed by changing the screwing position of the nut. The height of the piece can be adjusted, and the engagement of the nut with the inner peripheral surface or the outer peripheral surface of the cylindrical body prevents the inner cylindrical body from moving in the horizontal direction. It is characterized by that.

本発明に係る雨水処理装置の第1の態様は、雨水排水路と、筒状濾過槽とを具えており、該雨水排水路から流入した被処理雨水が筒状濾過槽外に、重力の作用で自然流下により排出されるように構成されており、前記筒状濾過槽は、有底で上端開放部が閉蓋可能となされた外筒体内に、上端が開放された内筒体が立設状態に納設され、該外筒体と該内筒体との間に流入空間が形成されており、該内筒体は、前記外筒体の底面で立設されており、該内筒体の下部側に、該流入空間に連通する取水部が設けられており、又、該内筒体内には、該取水部の上側に位置させて濾材が収容されている。そして、前記内筒体の側壁部には、前記外筒体の側壁部を貫通する流出管の上流開口端が前記濾材の上側に位置させて連結されており、又、前記雨水排水路の側壁部と前記外筒体の側壁部とは流入管で連結されており、該流入管の下流端の管底は、前記流出管の上流端の管底よりも上に位置されており、前記内筒体の上端は、前記流入管から流入された被処理雨水が越流しない高さに設定され、或いは、該内筒体の上端が閉蓋可能となされている。又、前記内筒体は、その下側部分をなす筒状濾過槽構成用の濾過槽本体部材を具えており、該濾過槽本体部材は、上端が開放された筒体を具え、該筒体の下部側に前記取水部が設けられると共に、該筒体の内部には、該取水部の上側に位置させて濾材が収容されるものとなされており、又、該筒体の側壁部には、前記流出管を該筒体の内部に連通状態に連結するための側部連結部が設けられており、該筒体の上部分には、前記内筒体の上側部分を構成する継足し筒の下部分を連通状態に連結するための上部連結管部が設けられている。又、前記取水部を形成するための台座装置を具えており、該台座装置は、前記外筒体の底面で所要間隔を置いて立設された支柱ボルトの夫々を、前記内筒体の下端を支持する支持片に設けられた挿通孔に挿通させると共に該支持片を、該支柱ボルトに螺合されたナットによって上下から挾持してなり、前記ナットの螺合位置を変更することによって該支持片の高さ調整を行い得るようになされており、又、前記ナットと前記筒体の内周面又は外周面との当接による係合によって前記内筒体の水平方向での移動が阻止されていることを特徴とするものである。   The first aspect of the rainwater treatment apparatus according to the present invention comprises a rainwater drainage channel and a cylindrical filtration tank, and the treated rainwater flowing from the rainwater drainage channel is outside the cylindrical filtration tank and acts by gravity. In the cylindrical filtration tank, an inner cylinder with an open upper end is erected in an outer cylinder that has a bottom and an upper open end that can be closed. The inflow space is formed between the outer cylinder and the inner cylinder, and the inner cylinder is erected on the bottom surface of the outer cylinder, and the inner cylinder A water intake portion that communicates with the inflow space is provided on the lower side of the water inlet, and a filter medium is accommodated in the inner cylinder so as to be positioned above the water intake portion. And the upstream opening end of the outflow pipe penetrating the side wall portion of the outer cylinder body is connected to the side wall portion of the inner cylinder body so as to be located above the filter medium, and the side wall of the rainwater drainage channel And the side wall portion of the outer cylinder are connected by an inflow pipe, and the bottom of the downstream end of the inflow pipe is positioned above the bottom of the upstream end of the outflow pipe. The upper end of the cylindrical body is set to a height at which the treated rainwater flowing in from the inflow pipe does not overflow, or the upper end of the inner cylindrical body can be closed. The inner cylinder includes a filter tank main body member for forming a cylindrical filter tank that forms a lower portion of the inner cylinder, and the filter tank main body member includes a cylinder having an open upper end. The intake portion is provided on the lower side of the cylinder, and the filter medium is accommodated inside the cylinder so as to be positioned on the upper side of the intake section. A side connecting portion for connecting the outflow pipe to the inside of the cylinder in a communicating state is provided, and an additional cylinder constituting an upper portion of the inner cylinder is provided on the upper portion of the cylinder An upper connecting pipe portion is provided for connecting the lower portion to the communication state. In addition, a pedestal device for forming the water intake portion is provided, and the pedestal device is configured so that each of the support bolts erected at a predetermined interval on the bottom surface of the outer cylindrical body is connected to the lower end of the inner cylindrical body. The support piece is inserted through an insertion hole provided in the support piece and supported by the nut bolted to the support bolt from above and below, and the support position is changed by changing the screwing position of the nut. The height of the piece can be adjusted, and the engagement of the nut with the inner peripheral surface or the outer peripheral surface of the cylindrical body prevents the inner cylindrical body from moving in the horizontal direction. It is characterized by that.

本発明に係る雨水処理装置の第2の態様は、雨水排水路と、筒状濾過槽と、雨水を地下浸透させる地下浸透層とを具えており、前記雨水排水路から流入した被処理雨水が筒状濾過槽外に、重力の作用で自然流下により排出されるように構成されており、前記筒状濾過槽は、有底で上端開放部が閉蓋可能となされた外筒体内に、上端が開放された内筒体が立設状態に納設され、該外筒体と該内筒体との間に流入空間が形成されており、該内筒体は、前記外筒体の底面で立設されており、該内筒体の下部側に、該流入空間に連通する取水部が設けられており、又、該内筒体内には、該取水部の上側に位置させて濾材が収容されている。そして、前記内筒体の側壁部には、前記外筒体の側壁部を貫通する流出管の上流開口端が前記濾材の上側に位置させて連結されており、又、前記雨水排水路の側壁部と前記外筒体の側壁部とは流入管で連結されており、該流入管の下流端の管底は、前記流出管の上流端の管底よりも上に位置されており、前記内筒体の上端は、前記流入管から流入された被処理雨水が越流しない高さに設定され、或いは、該内筒体の上端が閉蓋可能となされており、又、前記内筒体は、その下側部分をなす筒状濾過槽構成用の濾過槽本体部材を具えており、該濾過槽本体部材は、上下端が開放された筒体を具え、該筒体の下部側に前記取水部が設けられると共に、該筒体の内部には、該取水部の上側に位置させて濾材が収容されるものとなされており、又、該筒体の側壁部には、前記流出管を該筒体の内部に連通状態に連結するための側部連結部が設けられており、該筒体の上部分には、前記内筒体の上側部分を構成する継足し筒の下部分を連通状態に連結するための上部連結管部が設けられている。そして、前記取水部を形成するための台座装置を具えており、該台座装置は、前記外筒体の底面で所要間隔を置いて立設された支柱ボルトの夫々を、前記内筒体の下端を支持する支持片に設けられた挿通孔に挿通させると共に該支持片を、該支柱ボルトに螺合されたナットによって上下から挾持してなり、前記ナットの螺合位置を変更することによって該支持片の高さ調整を行い得るようになされており、又、前記ナットと前記筒体の内周面又は外周面との当接による係合によって前記内筒体の水平方向での移動が阻止されており、又、前記流出管の前記地下浸透層に存する部分には、該地下浸透層に前記処理雨水を排出させる流出孔が分散状態に設けられていることを特徴とするものである。   The second aspect of the rainwater treatment apparatus according to the present invention comprises a rainwater drainage channel, a tubular filtration tank, and an underground permeation layer for allowing rainwater to permeate underground, and the treated rainwater flowing from the rainwater drainage channel is The cylindrical filtration tank is configured to be discharged by natural flow under the action of gravity, and the cylindrical filtration tank has an upper end in an outer cylinder body that has a bottom and an upper end opening portion that can be closed. The inner cylinder with the opening opened is placed in an upright state, and an inflow space is formed between the outer cylinder and the inner cylinder, and the inner cylinder is formed at the bottom surface of the outer cylinder. A water intake portion communicating with the inflow space is provided on the lower side of the inner cylinder, and a filter medium is accommodated in the inner cylinder so as to be positioned above the water intake portion. Has been. And the upstream opening end of the outflow pipe penetrating the side wall portion of the outer cylinder body is connected to the side wall portion of the inner cylinder body so as to be located above the filter medium, and the side wall of the rainwater drainage channel And the side wall portion of the outer cylinder are connected by an inflow pipe, and the bottom of the downstream end of the inflow pipe is positioned above the bottom of the upstream end of the outflow pipe. The upper end of the cylindrical body is set to a height at which the treated rainwater flowing in from the inflow pipe does not overflow, or the upper end of the inner cylindrical body can be closed, and the inner cylindrical body is And a filtration tank body member for constituting a cylindrical filtration tank that forms a lower portion thereof, the filtration tank body member comprising a cylinder body whose upper and lower ends are opened, and the intake water is disposed on the lower side of the cylinder body. And a filter medium is accommodated inside the cylindrical body so as to be positioned above the water intake portion. The side wall part of the body is provided with a side connection part for connecting the outflow pipe to the inside of the cylindrical body in a communication state, and the upper part of the cylindrical body is provided with the upper part of the inner cylindrical body An upper connecting pipe portion is provided for connecting the lower portion of the extension tube constituting the connecting portion in a communicating state. And it comprises a pedestal device for forming the water intake section, the pedestal device, each of the pillar bolts erected at a required interval on the bottom surface of the outer cylindrical body, the lower end of the inner cylindrical body The support piece is inserted through an insertion hole provided in the support piece and supported by the nut bolted to the support bolt from above and below, and the support position is changed by changing the screwing position of the nut. The height of the piece can be adjusted, and the engagement of the nut with the inner peripheral surface or the outer peripheral surface of the cylindrical body prevents the inner cylindrical body from moving in the horizontal direction. In addition, in the portion of the outflow pipe existing in the underground infiltration layer, outflow holes for discharging the treated rainwater to the underground infiltration layer are provided in a dispersed state.

本発明に係る雨水処理装置の第3の態様は、雨水排水路と、筒状濾過槽と、雨水を地下浸透させる地下浸透層と、雨水貯留槽とを具えており、前記雨水排水路から流入した被処理雨水が、該雨水貯留槽に、重力の作用で自然流下により流入されるように構成されており、前記筒状濾過槽は、有底で上端開放部が閉蓋可能となされた外筒体内に、上端が開放された内筒体が立設状態に納設され、該外筒体と該内筒体との間に流入空間が形成されており、該内筒体は、前記外筒体の底面で立設されており、該内筒体の下部側に、該流入空間に連通する取水部が設けられており、又、該内筒体内には、該取水部の上側に位置させて濾材が収容されている。そして、前記内筒体の側壁部には、前記外筒体の側壁部を貫通する流出管の上流開口端が前記濾材の上側に位置させて連結されており、又、前記雨水排水路の側壁部と前記外筒体の側壁部とは流入管で連結されており、該流入管の下流端の管底は、前記流出管の上流端の管底よりも上に位置されており、前記内筒体の上端は、前記流入管から流入した被処理雨水が越流しない高さに設定され、或いは、該内筒体の上端が閉蓋可能となされている。又、前記内筒体は、その下側部分をなす筒状濾過槽構成用の濾過槽本体部材を具えており、該濾過槽本体部材は、上端が開放された筒体を具え、該筒体の下部側に前記取水部が設けられると共に、該筒体の内部には、該取水部の上側に位置させて濾材が収容されるものとなされており、又、該筒体の側壁部には、前記流出管を該筒体の内部に連通状態に連結するための側部連結部が設けられており、該筒体の上部分には、前記内筒体の上側部分を構成する継足し筒の下部分を連通状態に連結するための上部連結管部が設けられている。又、前記流出管は、前記地下浸透層を横断しており、該横断部分には、該地下浸透層に前記処理雨水を排出させる流出孔が分散状態に設けられており、該流出管の下流部が前記雨水貯留槽の上部に連結されており、又、該雨水貯留槽には、貯留水を排出するための排出部が設けられていることを特徴とするものである。   A third aspect of the rainwater treatment apparatus according to the present invention comprises a rainwater drainage channel, a tubular filtration tank, an underground infiltration layer for allowing rainwater to permeate underground, and a rainwater storage tank, and flows from the rainwater drainage channel. The rainwater to be treated is configured to flow into the rainwater storage tank by natural flow under the action of gravity, and the cylindrical filtration tank has a bottom and an upper end open portion that can be closed. An inner cylinder whose upper end is opened is placed in an upright state in the cylinder, and an inflow space is formed between the outer cylinder and the inner cylinder. A water intake portion that is erected on the bottom surface of the cylindrical body, and is provided on the lower side of the inner cylindrical body. The water intake portion communicates with the inflow space, and the inner cylindrical body is positioned above the water intake portion. The filter medium is accommodated. And the upstream opening end of the outflow pipe penetrating the side wall portion of the outer cylinder body is connected to the side wall portion of the inner cylinder body so as to be located above the filter medium, and the side wall of the rainwater drainage channel And the side wall portion of the outer cylinder are connected by an inflow pipe, and the bottom of the downstream end of the inflow pipe is positioned above the bottom of the upstream end of the outflow pipe. The upper end of the cylindrical body is set to a height at which the treated rainwater flowing in from the inflow pipe does not overflow, or the upper end of the inner cylindrical body can be closed. The inner cylinder includes a filter tank main body member for forming a cylindrical filter tank that forms a lower portion of the inner cylinder, and the filter tank main body member includes a cylinder having an open upper end. The intake portion is provided on the lower side of the cylinder, and the filter medium is accommodated inside the cylinder so as to be positioned on the upper side of the intake section. A side connecting portion for connecting the outflow pipe to the inside of the cylinder in a communicating state is provided, and an additional cylinder constituting an upper portion of the inner cylinder is provided on the upper portion of the cylinder An upper connecting pipe portion is provided for connecting the lower portion to the communication state. In addition, the outflow pipe crosses the underground infiltration layer, and an outflow hole for discharging the treated rainwater to the underground infiltration layer is provided in a distributed state in the crossing portion, and the downstream of the outflow pipe The rainwater storage tank is connected to the upper part of the rainwater storage tank, and the rainwater storage tank is provided with a discharge part for discharging the stored water.

前記の第1、第2、第3の態様に係る雨水処理装置において、前記外筒体は、基礎上に載置された底版部材上で、上下端が開放した所要高さの筒状ブロックを、外筒体の必要な高さを考慮して所要段数積重して構成するのがよい。   In the rainwater treatment apparatus according to the first, second, and third aspects, the outer cylinder is a cylindrical block having a required height with the upper and lower ends open on a bottom plate member placed on a foundation. In consideration of the required height of the outer cylinder, it is preferable to stack the required number of steps.

又、前記の第1、第2、第3の態様に係る雨水処理装置において、前記流入管を前記雨水排水路の側壁部の下端側に連結するのがよい。   In the rainwater treatment apparatus according to the first, second, and third aspects, the inflow pipe may be connected to a lower end side of a side wall portion of the rainwater drainage channel.

本発明は以下の如き優れた効果を奏する。
(1) 本発明に係る濾過槽本体部材は、筒状濾過槽を構成する内筒体の下側部分を構成するものであり、上端が開放された筒体を具え、該筒体の下部側に取水部が設けられると共に、該筒体の内部には、該取水部の上側に位置させて濾材が収容されるものとなされている。又、該筒体の側壁部には、前記流出管を連結するための側部連結部が設けられており、該筒体の上部分には、前記内筒体の上側部分を構成する継足し筒の下部分を連結するための上部連結管部が設けられている。
The present invention has the following excellent effects.
(1) A filtration tank main body member according to the present invention constitutes a lower part of an inner cylindrical body constituting a cylindrical filtration tank, and includes a cylindrical body having an open upper end, and a lower side of the cylindrical body In addition, a water intake is provided, and a filter medium is accommodated inside the cylinder so as to be positioned above the water intake. The side wall portion of the cylindrical body is provided with a side connecting portion for connecting the outflow pipe, and the upper portion of the cylindrical body is connected to the upper portion of the inner cylindrical body. An upper connecting pipe portion for connecting the lower portion of the cylinder is provided.

かかることから、筒状濾過槽を構成する内筒体を構成するに際しては、一定の上下長さを有し且つ構造の規格された濾過槽本体部材を、施工現場の如何によらず共通して用いることができる。そして施工現場において、前記筒体の上部分に、構築すべき筒状濾過槽の高さに応じて所要長さに設定した継足し筒を連結しさえすれば、該継足し筒の長さに応じて、所要長さの内筒体を簡易且つコスト低減を図って構成できることになる。   Therefore, when configuring the inner cylindrical body constituting the cylindrical filtration tank, the filtration tank body member having a certain vertical length and having a standardized structure is commonly used regardless of the construction site. Can be used. And at the construction site, as long as the additional cylinder set to the required length according to the height of the cylindrical filtration tank to be constructed is connected to the upper part of the cylindrical body, the length of the additional cylinder Accordingly, the inner cylinder having the required length can be configured easily and at a reduced cost.

このように本発明によるときは、濾過槽本体部材を、施工現場の如何によらず共通して用いることができるため、従来のように、施工現場に応じて筒状濾過槽の全体を個別に設計製作しなければならないといった不経済がなく、筒状濾過槽を構成する際の施工能率の向上と施工コストの低減を期し得ることとなる。   Thus, according to the present invention, since the filtration tank main body member can be used in common regardless of the construction site, the entire tubular filtration tank is individually adapted according to the construction site as in the past. There is no uneconomical need to design and manufacture, and it is possible to expect improvement in construction efficiency and reduction in construction cost when constructing a cylindrical filtration tank.

(2) 特に、前記濾過槽本体部材を構成する前記筒体の上部分に、拡大連結管部としての上部連結管部を設ける共に、前記継足し筒を、直線状のパイプを所要長さに切断して構成し、該継足し筒の下端部を該拡大連結管部に挿入する構成を採用するときは、内筒体を、より一層簡易に且つコスト低減を図って構成できることになる。 (2) In particular, an upper connecting pipe portion as an enlarged connecting pipe portion is provided on the upper portion of the cylindrical body constituting the filtration tank main body member, and the extension pipe is connected to a straight pipe with a required length. When adopting a configuration in which the lower end portion of the extension cylinder is inserted into the enlarged connecting pipe portion, the inner cylinder body can be configured more easily and with a reduction in cost.

(3) 本発明に係る雨水処理装置において、前記構成の濾過槽本体部材を用いてなる内筒体を、有底の外筒体内に立設状態に納設するに際し、該外筒体の底面に設けた台座装置を用いて該内筒体の下端を該底面から所要に浮き上げ、これによって、該内筒体内への取水部を構成する場合は、該台座装置による高さ調整により、内筒体内に被処理雨水を円滑に流入させるために必要な大きさの取水部を簡易且つ確実に構成できることとなる。 (3) In the rainwater treatment apparatus according to the present invention, when the inner cylindrical body using the filtration tank body member having the above-described configuration is placed in a standing state in the bottomed outer cylindrical body, the bottom surface of the outer cylindrical body When the lower end of the inner cylinder is lifted from the bottom surface as required by using the pedestal device provided on the base, and a water intake portion for the inner cylinder is thereby configured, the height is adjusted by the pedestal device. A water intake portion having a size necessary for smoothly flowing rainwater to be treated into the cylinder can be configured easily and reliably.

加えて、該台座装置を用いて内筒体を浮き上げて取水部を構成するときは、該内筒体の側壁部の下端部分に欠切部や開口部を設けて取水部を構成する場合とは異なり、内筒体に特別な加工を施す必要がない。かかることから、内筒体の製造コストの低減を期し得ると共に、かかる欠切部や開口部を設けることに伴う内筒体の強度低下を招く恐れもない。   In addition, when the water intake is configured by lifting the inner cylinder using the pedestal device, the water intake is configured by providing a notch or opening at the lower end of the side wall of the inner cylinder. Unlike the above, there is no need to apply special processing to the inner cylinder. For this reason, the manufacturing cost of the inner cylinder can be reduced, and there is no possibility that the strength of the inner cylinder will be reduced due to the provision of such a notch or opening.

(4) 又、前記台座装置を用いて前記取水部を形成する構成を採用するときは、前記内筒体の下端の浮き上げ高さを所要に設定するのが容易であるため、前記筒体の側部連結部に対する前記流出管の連結を容易化し得る。又、前記外筒体の下側に所要大きさの泥溜め部を形成するのも容易である。加えて、該台座装置によって、前記内筒体の水平方向での移動も阻止できる。 (4) Further, when adopting a configuration in which the water intake section is formed using the pedestal device, it is easy to set the lifting height of the lower end of the inner cylinder as necessary, so that the cylinder It is possible to facilitate the connection of the outflow pipe to the side connection portion. It is also easy to form a mud reservoir of a required size on the lower side of the outer cylinder. In addition, the pedestal device can also prevent the inner cylinder from moving in the horizontal direction.

(5) 前記外筒体の底面を、その中央部分に向けて下方に傾斜した傾斜面として構成すると共に、前記濾材支持部を網状板として構成し、該網状板の網目を通して吸管の下端部分を下方に挿入可能とするときは、前記流入空間で沈殿した沈殿物を該中央部分に寄せることができ、かかる沈殿物を、該吸管により効率よく吸引して排除できることになる。かかることから、筒状濾過槽の維持管理の容易化を達成できることになる。 (5) The bottom surface of the outer cylindrical body is configured as an inclined surface that is inclined downward toward the central portion thereof, the filter medium support portion is configured as a mesh plate, and the lower end portion of the suction pipe is passed through the mesh of the mesh plate. When it is possible to insert downward, the sediment precipitated in the inflow space can be brought to the central portion, and the sediment can be efficiently sucked and removed by the suction pipe. For this reason, it is possible to achieve easy maintenance of the cylindrical filtration tank.

(6) 本発明に係る雨水処理装置は、前記構成を有する濾過槽本体部材を用いて構成された内筒体を外筒体内に立設状態に納設してなる前記筒状濾過槽を用いて構成されている。そして、前記内筒体の上端は、前記流入管から流入された被処理雨水が越流しない高さに設定され、或いは、該内筒体の上端が閉蓋可能となされている。かかることから、前記流入空間の被処理雨水が該内筒体内に流入するのを防止でき、従って、雨水排水路からの被処理雨水を該筒状濾過槽で効率的に濾過処理できることになる。 (6) The rainwater treatment apparatus according to the present invention uses the cylindrical filtration tank in which the inner cylinder configured using the filtration tank main body member having the above-described configuration is placed in a standing state in the outer cylinder. Configured. And the upper end of the said inner cylinder is set to the height which the to-be-processed rainwater which flowed in from the said inflow pipe does not overflow, or the upper end of this inner cylinder can be closed. For this reason, the rainwater to be treated in the inflow space can be prevented from flowing into the inner cylinder, and therefore, the rainwater to be treated from the rainwater drainage can be efficiently filtered in the cylindrical filtration tank.

このように濾過処理された処理雨水は綺麗であるため、該処理雨水をそのまま河川に流すときには、雨水排水路を流下する雨水を直接河川に流す場合に比し河川の汚濁防止に寄与できる。又、該処理雨水を雨水貯留槽に貯留することにより、これを中水として利用できることになる。   Since the treated rainwater thus filtered is clean, when flowing the treated rainwater as it is to the river, it is possible to contribute to prevention of river pollution compared to the case where the rainwater flowing down the rainwater drainage channel is directly flowed into the river. Further, by storing the treated rainwater in the rainwater storage tank, it can be used as middle water.

更に、該処理雨水を地下浸透層で地下浸透させるときには、該処理雨水が綺麗であることから地下浸透層を目詰まりさせにくく、長期間に亘って地下浸透機能を維持できることになる。加えて、綺麗な処理雨水を地下浸透させることで、地下水を汚染することなく地下水の涵養を図ることができる。   Further, when the treated rainwater is infiltrated underground with the underground infiltration layer, since the treated rainwater is beautiful, the underground infiltration layer is hardly clogged, and the underground infiltration function can be maintained for a long period of time. In addition, it is possible to recharge groundwater without contaminating the groundwater by infiltrating clean treated rainwater underground.

特に、前記流入管の上流端側部分を前記雨水排水路の側壁部の下端側に連結するときは、該雨水排水路を流れる水の殆どを有効活用して地下浸透させ得ることとなって好ましい。   In particular, when connecting the upstream end side portion of the inflow pipe to the lower end side of the side wall portion of the rainwater drainage channel, it is preferable that most of the water flowing through the rainwater drainage channel can be effectively utilized and infiltrated underground. .

又、前記地下浸透層における地下浸透量を越えた余剰の処理雨水を雨水貯留槽に流入させるときは、豪雨時等の非常時においては、地下浸透を優先してそれを超える分を雨水貯留槽に貯留できる。そのため、処理雨水を直接的に雨水貯留槽に流入させる場合に比し、雨水貯留槽への処理雨水の流入量を減少させることができ、従って、雨水貯留槽を大型に構成しなくても河川への流出抑制を図り得ることとなる。更に、平常時において、地下浸透しきれない余剰の処理雨水が生じた場合は、これを雨水貯水槽に貯留して中水として活用できる。   In addition, when surplus treated rainwater exceeding the amount of underground infiltration in the underground infiltration layer is allowed to flow into the rainwater storage tank, in the event of an emergency such as heavy rain, priority is given to underground infiltration and the excess water is stored in the rainwater storage tank. Can be stored. Therefore, compared with the case where treated rainwater flows directly into the rainwater storage tank, the amount of treated rainwater flowing into the rainwater storage tank can be reduced. It will be possible to control the outflow to In addition, if there is excess treated rainwater that cannot penetrate underground, it can be stored in a rainwater storage tank and used as intermediate water.

このように本発明に係る雨水処理装置によるときは、平常時においては、地下水の涵養を図ることができ、処理雨水を中水として活用することもでき、非常時においては、河川への急激な雨水流出を抑制して河川の氾濫防止に寄与できるのであり、該雨水処理装置は、平常時にも非常時にも有効活用できる実用性の高いものである。   As described above, when using the rainwater treatment apparatus according to the present invention, groundwater can be recharged in normal times, and treated rainwater can be used as middle water. The rainwater outflow can be suppressed to contribute to prevention of flooding of the river, and the rainwater treatment apparatus is highly practical and can be effectively used both in normal times and in an emergency.

(7) 本発明に係る雨水処理装置の筒状濾過槽を構築する前記外筒体を、複数個の筒状ブロックを積重して構成するときは、前記内筒体を、濾過槽本体部材の上部連結管部に継足し筒の下部分を連通状態に連結して構成することと相俟って、施工現場に適合する所要高さの筒状濾過槽を、前記筒状ブロックの積重段数を所要に設定し且つ前記継足し筒の長さを所要に設定することにより、組み立て方式で簡易に構成できることになる。これにより、筒状濾過槽構築の施工性の向上と施工コストの低減を期し得ることとなる。 (7) When the outer cylindrical body constituting the cylindrical filtration tank of the rainwater treatment apparatus according to the present invention is configured by stacking a plurality of cylindrical blocks, the inner cylindrical body is a filtration tank main body member. Combined with the connection of the lower part of the cylinder connected to the upper connecting pipe part of the pipe, a cylindrical filtration tank having a required height suitable for the construction site is combined with the stack of the cylindrical blocks. By setting the number of steps as required and setting the length of the additional cylinder as required, the assembly method can be easily configured. Thereby, the improvement of the construction property of cylindrical filtration tank construction and the reduction of construction cost can be expected.

本発明に係る雨水処理装置を示す斜視図である。It is a perspective view which shows the rainwater treatment apparatus which concerns on this invention. その断面図である。FIG. 雨水排水路の側壁部に流入管を連結した状態を示す断面図である。It is sectional drawing which shows the state which connected the inflow pipe to the side wall part of a rainwater drainage channel. 筒状濾過槽の構成をその作用と共に示す断面図である。It is sectional drawing which shows the structure of a cylindrical filtration tank with the effect | action. 筒状濾過槽を構成する外筒体の構成を示す分解斜視図である。It is a disassembled perspective view which shows the structure of the outer cylinder body which comprises a cylindrical filtration tank. 内筒体の下側部分を構成する濾過槽本体部材を示す斜視図である。It is a perspective view which shows the filtration tank main body member which comprises the lower part of an inner cylinder. 濾過槽本体部材を構成する筒体と濾材支持部材を示す斜視図である。It is a perspective view which shows the cylinder and filter medium support member which comprise a filtration tank main body member. 内筒体を台座装置で支持した状態を示す断面図である。It is sectional drawing which shows the state which supported the inner cylinder body with the base apparatus. 内筒体の構成を、収容される濾材と共に示す分解斜視図である。It is a disassembled perspective view which shows the structure of an inner cylinder with the filter medium accommodated. 濾過槽本体部材の筒体の側壁部に流出管を連結した状態を示す断面図である。It is sectional drawing which shows the state which connected the outflow pipe to the side wall part of the cylinder of a filtration tank main body member. 台座装置を構成する構成部材を示す分解斜視図である。It is a disassembled perspective view which shows the structural member which comprises a base apparatus. 内筒体に収容した濾材の浮上りを防止する浮上り防止部材を内筒体に固定する固定構造を説明する斜視図である。It is a perspective view explaining the fixation structure which fixes the raising prevention member which prevents the raising of the filter medium accommodated in the inner cylinder to an inner cylinder. その固定状態を示す断面図である。It is sectional drawing which shows the fixed state. 地下浸透層の構成を説明する断面図である。It is sectional drawing explaining the structure of an underground osmosis | permeation layer. 雨水貯留槽の構成を説明する断面図である。It is sectional drawing explaining the structure of a rainwater storage tank. 雨水貯留槽の他の態様を示す断面図である。It is sectional drawing which shows the other aspect of a rainwater storage tank. 雨水処理装置の他の実施例を示す断面図である。It is sectional drawing which shows the other Example of a rainwater treatment apparatus. 雨水処理装置を構成する筒状濾過槽の他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the cylindrical filtration tank which comprises a rainwater treatment apparatus. 雨水処理装置を構成する雨水排水路の他の態様と筒状濾過槽の他の実施例を示す断面図である。It is sectional drawing which shows the other aspect of the rainwater drainage channel which comprises a rainwater treatment apparatus, and the other Example of a cylindrical filtration tank. 内筒体の他の実施例を示す断面図である。It is sectional drawing which shows the other Example of an inner cylinder. 筒体と継足し筒とを連結する他の態様を示す断面図である。It is sectional drawing which shows the other aspect which connects a cylinder and an extension cylinder. 濾過槽本体部材を構成する筒体の他の態様を示す斜視図である。It is a perspective view which shows the other aspect of the cylinder which comprises a filtration tank main body member. 濾過槽本体部材を構成する筒体のその他の態様を示す斜視図である。It is a perspective view which shows the other aspect of the cylinder which comprises a filtration tank main body member. 内筒体の上端開放部を蓋版で閉蓋した状態を示す断面図である。It is sectional drawing which shows the state which closed the upper end open part of the inner cylinder with the cover plate. 内筒体を台座装置で支持する他の態様を示す断面図である。It is sectional drawing which shows the other aspect which supports an inner cylinder body with a base apparatus. 内筒体に対する流出管の他の連結態様を示す断面図である。It is sectional drawing which shows the other connection aspect of the outflow pipe with respect to an inner cylinder. 雨水処理装置の他の実施例を示す断面図である。It is sectional drawing which shows the other Example of a rainwater treatment apparatus. 雨水処理装置のその他の実施例を示す断面図である。It is sectional drawing which shows the other Example of a rainwater treatment apparatus. 従来の筒状雨水濾過器の構成を示す断面図である。It is sectional drawing which shows the structure of the conventional cylindrical rainwater filter.

図1〜2において本発明に係る雨水処理装置1は、雨水排水路2を流下する被処理雨水3を流入管5を介して筒状濾過槽6内に流入させた後、該被処理雨水3を濾材7で濾過処理し、濾過処理された処理雨水9を流出管10を介して、筒状濾過槽6外に、重力の作用で自然流下により排出(本実施例においては雨水貯留槽11に排出)させるように構成されている。そして該流出管10は、地下浸透層12を横断する如くなされ、該地下浸透層12に存する管部分13に流出孔15が分散状態に設けられており、前記処理雨水9が該流出孔15から該地下浸透層12に排出されるように構成されている。又、地下浸透量を超えた余剰の処理雨水9は雨水貯留槽11に流入して一時貯留されるようになされ、該雨水貯留槽11には、貯留水16を排出するための排出部17が設けられている。   1 to 2, a rainwater treatment apparatus 1 according to the present invention causes treated rainwater 3 flowing down a rainwater drainage channel 2 to flow into a cylindrical filtration tank 6 through an inflow pipe 5, and then treated rainwater 3. The filtered rainwater 9 is drained by natural flow under the action of gravity through the outflow pipe 10 to the outside of the cylindrical filtration tank 6 (in the present embodiment, the rainwater storage tank 11). Discharge). The outflow pipe 10 traverses the underground infiltration layer 12, and the outflow holes 15 are provided in a dispersed state in the pipe portion 13 existing in the underground infiltration layer 12, and the treated rainwater 9 is discharged from the outflow hole 15. It is configured to be discharged to the underground seepage layer 12. The surplus treated rainwater 9 exceeding the underground infiltration amount flows into the rainwater storage tank 11 to be temporarily stored, and the rainwater storage tank 11 has a discharge portion 17 for discharging the stored water 16. Is provided.

以下、前記筒状濾過槽6の構成をより具体的に説明する。該筒状濾過槽6は、図2〜4に示すように、有底で上端開放部19が閉蓋可能となされた外筒体20と、該外筒体20内に、上下方向の軸線を略合致させて立設状態に納設された、上下端21,22が開放された内筒体23とを具えている。該内筒体23は、本実施例においては下端22も開放されており、その下側部分25を構成する濾過槽本体部材26を有する。そして、前記外筒体20と前記内筒体23との間をなす流入空間30に、例えば側溝2aとしての雨水排水路2からの被処理雨水(道路や道路外の地表の降雨水だけではなく建物の屋根面の降雨水等)3が、該雨水排水路2の側壁部31と該外筒体20の側壁部32とを連結する前記流入管(例えば円形パイプからなり、内径は例えば150mm)5を介して流入し、該被処理雨水3が、該内筒体23の下部側に設けられた取水部33から該内筒体23内に導入されるようになされている。そして、該内筒体23内に収容されている前記濾材7で濾過処理された処理雨水9が、該内筒体23の側壁部36に連結され且つ前記外筒体20の側壁部31を貫通する前記流出管(例えば円形パイプからなり、内径は例えば150mm)10を介して筒状濾過槽6外に排出されるようになされている。   Hereinafter, the structure of the said cylindrical filtration tank 6 is demonstrated more concretely. As shown in FIGS. 2 to 4, the cylindrical filtration tank 6 has a bottomed outer cylinder body 20 whose upper end opening 19 can be closed, and a vertical axis in the outer cylinder body 20. It has an inner cylinder body 23 with upper and lower ends 21 and 22 opened, which is placed in an upright state so as to be substantially matched. In the present embodiment, the inner cylindrical body 23 is also open at the lower end 22, and has a filter tank body member 26 that constitutes a lower portion 25 thereof. Then, in the inflow space 30 between the outer cylindrical body 20 and the inner cylindrical body 23, for example, rainwater to be treated from the rainwater drainage channel 2 as the side groove 2a (not only the rainwater on the road and the ground outside the road) The rain water on the roof surface of the building 3) connects the side wall portion 31 of the rainwater drainage channel 2 and the side wall portion 32 of the outer cylinder 20 (for example, a circular pipe having an inner diameter of 150 mm, for example). The rainwater 3 to be treated is introduced into the inner cylinder 23 from a water intake portion 33 provided on the lower side of the inner cylinder 23. The treated rainwater 9 filtered by the filter medium 7 accommodated in the inner cylinder 23 is connected to the side wall 36 of the inner cylinder 23 and penetrates the side wall 31 of the outer cylinder 20. The outlet pipe (for example, a circular pipe having an inner diameter of 150 mm, for example) 10 is discharged out of the cylindrical filtration tank 6.

前記外筒体20は本実施例においては図1〜2、図4〜5に示すように、上端側37が円錐状に縮径し且つ上端が開放された組立式のコンクリート製外筒体として構成されており、基礎40上に載置される底版部材41と、該底版部材41上に載置される、高さの大なる、上下端が開放された円筒状部材42と、該円筒状部材42上に載置される円錐状部材43と、該円錐状部材43上に載置される高さの低い円形リング部材45と、該円形リング部材45上に載置されるリング状蓋受部材46と、該リング状蓋受部材46の上端開放部を覆う蓋版(例えば鉄蓋)49とを具えている。   As shown in FIGS. 1 and 2 and FIGS. 4 to 5, the outer cylinder 20 is an assembly-type concrete outer cylinder whose upper end side 37 is reduced in a conical shape and whose upper end is opened, as shown in FIGS. A bottom plate member 41 placed on the foundation 40, a cylindrical member 42 placed on the bottom plate member 41, having a large height and open at the top and bottom, and the cylindrical shape A conical member 43 placed on the member 42; a circular ring member 45 having a low height placed on the conical member 43; and a ring-shaped lid receiver placed on the circular ring member 45. A member 46 and a cover plate (for example, an iron cover) 49 that covers the upper end open portion of the ring-shaped cover receiving member 46 are provided.

前記底版部材41は、図4〜5に示すように、水平な下面50で基礎40上に載置される円板状を呈し、その上面部51の外周縁部分には係合突条52が周設されている。又前記円筒状部材42は、上下端が開放された同径の円筒状を呈しており、その下端部53の外周縁部分には、前記係合突条52と嵌合し得る係合条溝55が周設されると共に、その上端部56の外周縁部分には係合突条57が周設されている。又、該円筒状部材42の周壁部59の対向側60a,60bの一方60aの上端寄り部位には、前記流入管5の下流端部分61を挿入させるための流入管挿入孔62が設けられている。そして、該対向側の他方60bの上下略中央部位には、前記流出管10を挿通させる流出管挿通孔63が設けられている。又、前記リング状蓋受部材46は、その水平な下面65が前記円形リング部材45の上面66に載置されると共に、その上部には、前記蓋版49の周縁部分67を嵌め入れる嵌合凹部69が周設されている。そして、該リング状蓋受部材46の台座片70が前記円形リング部材45に、所要の角度ピッチでボルト固定されることにより、該リング状蓋受部材46が該円形リング部材45にボルト固定されている。   As shown in FIGS. 4 to 5, the bottom plate member 41 has a disk shape that is placed on the foundation 40 with a horizontal lower surface 50, and an engagement protrusion 52 is provided on the outer peripheral edge portion of the upper surface portion 51. It is installed around. The cylindrical member 42 has a cylindrical shape of the same diameter with the upper and lower ends opened, and an engagement groove that can be fitted to the engagement protrusion 52 at the outer peripheral edge portion of the lower end portion 53 thereof. 55 is provided around the periphery, and an engaging protrusion 57 is provided around the outer peripheral edge portion of the upper end portion 56. Further, an inflow pipe insertion hole 62 for inserting the downstream end portion 61 of the inflow pipe 5 is provided in a portion near the upper end of one of the opposed sides 60a, 60b of the peripheral wall portion 59 of the cylindrical member 42. Yes. In addition, an outflow pipe insertion hole 63 through which the outflow pipe 10 is inserted is provided in a substantially central portion of the other side 60b on the opposite side. The ring-shaped lid receiving member 46 has a horizontal lower surface 65 placed on the upper surface 66 of the circular ring member 45, and a fitting portion into which the peripheral portion 67 of the lid plate 49 is fitted. A recess 69 is provided around. Then, the base piece 70 of the ring-shaped lid receiving member 46 is bolted to the circular ring member 45 at a required angular pitch, so that the ring-shaped lid receiving member 46 is bolted to the circular ring member 45. ing.

ここで、前記部材について主要部の寸法を例示すれば、該筒状濾過槽6の高さは1500〜3000mmに、例えば2100mm程度に設定されている。又、外筒体20の前記円筒状部材42の内径は例えば900mm程度に設定され、この場合、内筒体23の内径は300〜600mmに、例えば500mm程度に設定されている。又、前記円筒状部材42は、その外径が1050mm程度でその高さが1460mm程度に設定されている。又、前記流入管5及び前記流出管10の内径は共に、前記のように150mm程度に設定されており、前記流入管挿入孔62の内径は200mm程度、流出管挿通孔63の内径は200mm程度に設定されている。又前記円錐状部材43は、その下端71の内径が900mm程度、外径が1050mm程度に設定されており、その上端72の内径が600mm程度、その外径が820mm程度に設定され、その高さが315mm程度に設定されている。又前記円形リング部材45は、その内径が600mm程度、その外径が820mm程度で、その高さが120mm程度に設定されている。   Here, if the dimension of the principal part is illustrated about the said member, the height of this cylindrical filtration tank 6 is set to 1500-3000 mm, for example, about 2100 mm. The inner diameter of the cylindrical member 42 of the outer cylinder 20 is set to about 900 mm, for example. In this case, the inner diameter of the inner cylinder 23 is set to 300 to 600 mm, for example about 500 mm. The cylindrical member 42 has an outer diameter of about 1050 mm and a height of about 1460 mm. The inner diameters of the inflow pipe 5 and the outflow pipe 10 are both set to about 150 mm as described above, the inner diameter of the inflow pipe insertion hole 62 is about 200 mm, and the inner diameter of the outflow pipe insertion hole 63 is about 200 mm. Is set to The conical member 43 has an inner diameter of the lower end 71 of about 900 mm and an outer diameter of about 1050 mm, an inner diameter of the upper end 72 of about 600 mm, and an outer diameter of about 820 mm. Is set to about 315 mm. The circular ring member 45 has an inner diameter of about 600 mm, an outer diameter of about 820 mm, and a height of about 120 mm.

前記濾過槽本体部材26は、図4、図6〜8に示すように、上下端73,75が開放された円筒状の筒体(例えば塩化ビニール製)76を具え、該筒体76の下端側77の内部74には、前記濾材7が収容されてなる濾材袋79を載置するための濾材支持部80を構成する濾材支持部材81(図6〜7)が設けられる。該濾材支持部材81を該筒体76に固定するために、該筒体76の下端側77には、周方向に90度の角度を置いて同一高さで、外のボルト挿通孔82,82,82,82が貫設されている。該筒体76の上下長さは、本実施例においては1130mm程度に設定されている。   As shown in FIGS. 4 and 6 to 8, the filtration tank body member 26 includes a cylindrical cylinder (for example, made of vinyl chloride) 76 having upper and lower ends 73 and 75 opened, and the lower end of the cylinder 76. The inside 77 of the side 77 is provided with a filter medium support member 81 (FIGS. 6 to 7) that constitutes a filter medium support portion 80 for placing the filter medium bag 79 in which the filter medium 7 is accommodated. In order to fix the filter medium support member 81 to the cylindrical body 76, the lower end side 77 of the cylindrical body 76 has an outer bolt insertion hole 82, 82 at the same height with an angle of 90 degrees in the circumferential direction. , 82, 82 are provided. The vertical length of the cylindrical body 76 is set to about 1130 mm in this embodiment.

前記濾材支持部材81は、図6〜7に示すように、円形リング状部材83の内側に格子状部材85を設けてなる円形の網状板86として構成されており、例えばステンレス製である。該格子状部材85は、該円形リング状部材83を構成する線材87と同径である縦の直線状線材89,89と横の直線状線材90,90とを格子状に接合してなり、該格子状部材85の端部91が、該円形リング状部材83の内周面92にスポット溶接されている。そして、該円形リング状部材83の中央に位置する正方形状の格子目(網目)93の一辺長さは例えば150mm程度に設定されている。又、前記円形リング状部材83の下面95には、90度の角度を置いて固定片96,96,96,96が垂設されており、各固定片96には、前記外のボルト挿通孔82と位置合わせして内のボルト挿通孔97が設けられている。   As shown in FIGS. 6 to 7, the filter medium support member 81 is configured as a circular mesh plate 86 in which a lattice member 85 is provided inside a circular ring member 83, and is made of, for example, stainless steel. The lattice member 85 is formed by joining vertical linear wires 89 and 89 having the same diameter as the wire 87 constituting the circular ring member 83 and horizontal linear wires 90 and 90 in a lattice shape. An end 91 of the lattice member 85 is spot welded to the inner peripheral surface 92 of the circular ring member 83. The length of one side of a square lattice (mesh) 93 located at the center of the circular ring-shaped member 83 is set to about 150 mm, for example. In addition, fixing pieces 96, 96, 96, 96 are suspended from the lower surface 95 of the circular ring-shaped member 83 at an angle of 90 degrees, and each of the fixing pieces 96 has an outer bolt insertion hole. An internal bolt insertion hole 97 is provided so as to be aligned with 82.

かかる構成の網状板86からなる濾材支持部材81を前記筒体76に固定するに際しては、図6、図8に示すように、該濾材支持部材81を前記筒体76内の下端側77に、前記固定片96を下向きにして且つ前記内外のボルト挿通孔97,82の孔心を合致させた状態で、頭部付きの固定ボルト99のネジ軸100を、前記外のボルト挿通孔82の外側から内側に向けて挿通させる。そして、前記内のボルト挿通孔97を挿通したネジ軸100にナット101を螺合し締め付けることにより、前記濾材支持部材81を、4本の固定ボルト99,99,99,99を用いて該筒体76に固定でき、これにより、該筒体76の下端側に、上面部102がフラットである前記濾材支持部80を構成できることになる。   When fixing the filter medium support member 81 composed of the mesh plate 86 having such a configuration to the cylinder 76, the filter medium support member 81 is placed on the lower end side 77 in the cylinder 76, as shown in FIGS. 6 and 8. With the fixing piece 96 facing downward and the cores of the inner and outer bolt insertion holes 97 and 82 matched, the screw shaft 100 of the fixing bolt 99 with a head is placed outside the outer bolt insertion hole 82. Insert from the inside to the inside. Then, the nut 101 is screwed and tightened to the screw shaft 100 inserted through the bolt insertion hole 97, so that the filter medium support member 81 is attached to the cylinder using four fixing bolts 99, 99, 99, 99. The filter medium support portion 80 having a flat upper surface portion 102 can be formed on the lower end side of the cylindrical body 76.

又筒体76の上部分103には、本実施例においては、図4、図6、図9に示すように、継足し筒104の下部分105を連通状態に連結するための上部連結管部106が設けられている。そして該上部連結管部106は、本実施例においては、外側に拡大する水平な段差部107を介して円筒部が一連に設けられてなる拡大連結管部106aとして構成されている。該拡大連結管部106aに、円筒状を呈する前記継足し筒(例えば塩化ビニール製)104の下部分105が図4に示すように挿入される。該下部分105が該拡大連結管部106aに挿入された状態で、該継足し筒104の内周面107と該筒体76の内周面109は面一状態に連なり、これによって、該筒体76の上部分103が該継足し筒104の下部分105に連通状態に連結される。   In the present embodiment, the upper portion 103 of the cylinder 76 is connected to the lower portion 105 of the extension tube 104 in a communicating state as shown in FIGS. 106 is provided. In this embodiment, the upper connecting pipe portion 106 is configured as an enlarged connecting pipe portion 106a in which a cylindrical portion is provided in series through a horizontal stepped portion 107 that expands outward. A lower portion 105 of the extension tube (for example, made of vinyl chloride) 104 having a cylindrical shape is inserted into the enlarged connecting pipe portion 106a as shown in FIG. In a state where the lower portion 105 is inserted into the enlarged connecting pipe portion 106a, the inner peripheral surface 107 of the extension tube 104 and the inner peripheral surface 109 of the cylindrical body 76 are in a flush state, whereby the tube The upper part 103 of the body 76 is connected in communication with the lower part 105 of the extension tube 104.

又、前記筒体76の側壁部110には、図4、図6、図9〜10に示すように、前記拡大連結管部106aの稍下側に位置させて側部連結部111が設けられている。該側部連結部111は本実施例においては図4、図6、図10に示すように、円形管からなる前記流出管10の上流側部分10aを構成する連結管(例えば塩化ビニール製)112であり、該側壁部110に設けた円形の前記流出管挿通孔63に連通状態に設けられている。より具体的には、図10に示すように、該連結管112の基端側の端面115を該円形孔113の外周縁部116に密接させ、該端面115を該外周縁部116に溶着して構成されている。   Further, as shown in FIGS. 4, 6, and 9 to 10, a side connection portion 111 is provided on the side wall portion 110 of the cylindrical body 76 so as to be positioned below the enlarged connection pipe portion 106 a. ing. In this embodiment, the side connecting portion 111 is a connecting pipe (for example, made of vinyl chloride) 112 constituting the upstream side portion 10a of the outflow pipe 10 made of a circular pipe, as shown in FIGS. And is provided in communication with the circular outflow pipe insertion hole 63 provided in the side wall portion 110. More specifically, as shown in FIG. 10, the end surface 115 on the proximal end side of the connecting pipe 112 is brought into close contact with the outer peripheral edge portion 116 of the circular hole 113, and the end surface 115 is welded to the outer peripheral edge portion 116. Configured.

このようにして、前記筒体76の下端側77に濾材支持部80を設けると共に、該筒体76の側壁部110に側部連結部111を設けることによって、前記濾過槽本体部材26を構成できる。かかる構成の濾過槽本体部材26は、台座装置117を用いて支持される。   In this way, the filter tank main body member 26 can be configured by providing the filter medium support portion 80 on the lower end side 77 of the cylindrical body 76 and providing the side connection portion 111 on the side wall portion 110 of the cylindrical body 76. . The filtration tank main body member 26 having such a configuration is supported by using the pedestal device 117.

該台座装置117は例えば図4〜5、図8〜9、図11に示すように、両切りの支柱ボルト119aからなる支柱部材119の4本を用いて構成されている。各支柱ボルト119aは、前記底版部材41の上面部51に埋設したインサート121に下端部分122が螺合されて垂直に立設される。該立設状態の支柱ボルト119aの上端部分123には、前記筒体76の下端75を下方から支持する支持部126を具えた支持片127が固定されている。該支持片127は本実施例においては、円板状の座金を以て構成されており、該座金の挿通孔129に前記支柱ボルト119aの上端部分123を挿通せしめ、該上端部分123に螺合された上下のナット131,132を締め付けることによって、該支持片127を該支柱ボルト119aの所要高さ部位に固定できる。なお、該挿通孔129は、座金等の支持片127の縁部で開放した切欠開口を以て構成することもできる。該支持片127の前記外筒体20の底面133からの高さは、前記内筒体23の下端125の浮き上げ高さを考慮して例えば15〜20cm程度に設定される。この浮き上げ高さは、前記流入空間30に流入した被処理雨水3を前記内筒体23内に円滑に導入させるに必要な取水部33の大きさを確保できるように所要に調整される。又該浮き上げ高さは、前記外筒体20の底面133における沈殿物の堆積量を考慮して、前記外筒体20の下側に所要大きさの泥溜め部135を確保できるように所要に高さ調整される。更には、前記連結管112の軸線L1が前記流出管挿通孔63の孔心L2と略合致するように所要に高さ調整される。   For example, as shown in FIGS. 4 to 5, FIGS. 8 to 9, and FIG. 11, the pedestal device 117 is configured by using four support members 119 formed of double-ended support bolts 119 a. Each column bolt 119a is vertically installed with a lower end portion 122 screwed to an insert 121 embedded in the upper surface portion 51 of the bottom plate member 41. A support piece 127 having a support portion 126 that supports the lower end 75 of the cylindrical body 76 from below is fixed to the upper end portion 123 of the column bolt 119a in the standing state. In this embodiment, the support piece 127 is configured by a disc-shaped washer. The upper end portion 123 of the support bolt 119a is inserted into the insertion hole 129 of the washer, and is screwed into the upper end portion 123. By tightening the upper and lower nuts 131 and 132, the support piece 127 can be fixed to a required height portion of the column bolt 119a. The insertion hole 129 can also be configured with a notch opening opened at the edge of the support piece 127 such as a washer. The height of the support piece 127 from the bottom surface 133 of the outer cylinder 20 is set to, for example, about 15 to 20 cm in consideration of the floating height of the lower end 125 of the inner cylinder 23. The floating height is adjusted as necessary so as to ensure the size of the water intake portion 33 necessary for smoothly introducing the treated rainwater 3 flowing into the inflow space 30 into the inner cylinder 23. Further, the lifting height is required so as to secure a mud storage portion 135 having a required size below the outer cylinder 20 in consideration of the amount of sediment deposited on the bottom surface 133 of the outer cylinder 20. The height is adjusted. Furthermore, the height is adjusted as necessary so that the axis L1 of the connecting pipe 112 substantially coincides with the hole center L2 of the outflow pipe insertion hole 63.

図8は、4本の支柱ボルト119aの上端部分に螺合された上のナット131の各外側面132が前記筒体76の内周面109に当接乃至近接した状態で該筒体76の下端125が前記支持片127で下方から支持された状態を示している。この支持状態で、図10に示すように、前記連結管112の軸線L1が前記流出管挿通孔63の孔心L2と略合致しており、図4、図8(A)に示すように、該筒体76の下部側に、隣り合う支柱ボルト119a,119a間の空間部分128と該筒体76の下端75(内筒体2の下端22)とで、所望大きさの前記取水部33(図4、図8)が設けられている。又、前記外側面132と前記内周面109との当接による係合によって、前記内筒体23は、その水平方向での移動が阻止されて、所要高さで支持されることになる。これによって、図4に示すように、前記外筒体20内の所定位置に内筒体23が所要に位置決めされて立設状態とされてなる所望の筒状濾過槽6を構成できることとなる。   FIG. 8 shows that the outer surface 132 of the upper nut 131 screwed into the upper end portions of the four column bolts 119a is in contact with or close to the inner peripheral surface 109 of the cylindrical body 76. The lower end 125 is shown supported by the support piece 127 from below. In this supported state, as shown in FIG. 10, the axis L1 of the connecting pipe 112 substantially coincides with the core L2 of the outflow pipe insertion hole 63, and as shown in FIGS. On the lower side of the cylindrical body 76, the space portion 128 between adjacent column bolts 119 a and 119 a and the lower end 75 of the cylindrical body 76 (the lower end 22 of the inner cylindrical body 2) have the desired intake portion 33 ( 4 and 8) are provided. Further, due to the engagement between the outer surface 132 and the inner peripheral surface 109, the inner cylinder body 23 is prevented from moving in the horizontal direction and is supported at a required height. As a result, as shown in FIG. 4, a desired cylindrical filtration tank 6 in which the inner cylinder 23 is properly positioned at a predetermined position in the outer cylinder 20 and is erected can be configured.

筒体76がこのように支持された状態で、図4、図10に示すように、前記連結管112に、前記流出管10の中間部分10bを構成するジョイント管(例えば塩化ビニール製)136が連結される。該ジョイント管136は図10に示すように、円筒部137の両端部分に内外のソケット部139,140が連設されてなり、前記流出管挿通孔63を通して前記外筒体20内に挿入された内のソケット部139に前記連結管112の円筒状の先端部分141を挿入し、必要に応じて接着等の手段で固定する。該ジョイント管136の外周面142と該流出管挿通孔63の内周面143との間の隙間145は、例えばモルタル146で間詰めされる。この状態で、例えば図10に示すように、外のソケット部140が前記外筒体20の側壁部31の外方に突出状態となる。そのため、前記流出管10の下流部分を構成する下流管10cの一端部分147を該外のソケット部140に挿入する作業を容易に行なうことができる。この挿入部分は、必要に応じて接着される。これによって図4、図10に示すように、前記流出管10を前記筒体76の内部に連通状態に連結できる。この連結状態で、前記連結管112の内周面149と前記ジョイント管136の内周面150と前記下流管10cの内周面151は面一状態に連なる。   With the cylindrical body 76 supported in this manner, as shown in FIGS. 4 and 10, a joint pipe (for example, made of vinyl chloride) 136 constituting the intermediate portion 10 b of the outflow pipe 10 is provided in the connecting pipe 112. Connected. As shown in FIG. 10, the joint pipe 136 is formed by connecting inner and outer socket parts 139 and 140 to both ends of the cylindrical part 137 and inserted into the outer cylinder 20 through the outflow pipe insertion hole 63. The cylindrical tip portion 141 of the connecting pipe 112 is inserted into the socket portion 139, and is fixed by means such as adhesion as necessary. A gap 145 between the outer peripheral surface 142 of the joint pipe 136 and the inner peripheral surface 143 of the outflow pipe insertion hole 63 is filled with, for example, a mortar 146. In this state, for example, as shown in FIG. 10, the outer socket portion 140 protrudes outward from the side wall portion 31 of the outer cylindrical body 20. Therefore, the operation of inserting the one end portion 147 of the downstream pipe 10c constituting the downstream portion of the outflow pipe 10 into the outer socket portion 140 can be easily performed. This insertion portion is bonded as necessary. As a result, as shown in FIGS. 4 and 10, the outflow pipe 10 can be connected to the inside of the cylindrical body 76 in a communicating state. In this connected state, the inner peripheral surface 149 of the connecting pipe 112, the inner peripheral surface 150 of the joint pipe 136, and the inner peripheral surface 151 of the downstream pipe 10c are connected in a flush state.

このようにして筒体76に流出管10を連結した後に、或いは該連結に先立って、図4に示すように、前記継足し筒104の円筒状の下部分105が円筒状の前記拡大連結管部106a(上部連結管部106)に挿入される。該下部分105は、必要に応じて、該拡大連結管部106aに接着等の手段で固定される。該継足し筒104の上下長さは、前記筒状濾過槽6の高さに応じて設定されるものであり、前記外筒体20内に立設状態に納設される前記内筒体23の上端21の必要高さを考慮して設定される。   After connecting the outflow pipe 10 to the cylinder 76 in this manner or prior to the connection, as shown in FIG. 4, the cylindrical lower portion 105 of the extension cylinder 104 is formed in the cylindrical expansion connection pipe. It is inserted into the portion 106a (upper connecting pipe portion 106). The lower portion 105 is fixed to the enlarged connecting pipe portion 106a by means such as adhesion as required. The vertical length of the extension cylinder 104 is set according to the height of the cylindrical filtration tank 6, and the inner cylinder 23 is placed in a standing state in the outer cylinder 20. Is set in consideration of the required height of the upper end 21 of the.

このように内筒体23は、濾過槽本体部材26を構成する前記筒体76の上部連結管部106に継足し筒104を連結する構成を採用するため、どのような施工現場においても、規格化された濾過槽本体部材26を共通に用いることができ、施工現場の掘削深さに応じて所要長さに設定した継足し筒104の下部分105を前記筒体76の上部連結管部106に連結するだけで、上下所要長さを有する内筒体23を簡易に然も製造コストの低減を図って構成できることになる。特に本実施例においては、継足し筒104の製造の容易化を図るため、直線状のパイプを所要長さに切断して継足し筒104を構成することとしている。かかることから、雨水処理装置1を構成するに際し、施工の容易化と施工コストの低減を期し得ることとなる。   As described above, the inner cylinder 23 adopts a configuration in which the cylinder 104 is connected to the upper connecting pipe portion 106 of the cylinder 76 constituting the filtration tank main body member 26, so that the standard can be used at any construction site. The filtered tank body member 26 can be used in common, and the lower portion 105 of the extension tube 104 set to a required length according to the excavation depth at the construction site is connected to the upper connecting pipe portion 106 of the cylinder body 76. By simply connecting to the inner cylinder body 23, the inner cylinder body 23 having the required vertical length can be simply configured to reduce the manufacturing cost. In particular, in this embodiment, in order to facilitate the manufacture of the extension cylinder 104, the extension cylinder 104 is configured by cutting a straight pipe into a required length. For this reason, when the rainwater treatment apparatus 1 is configured, the construction can be facilitated and the construction cost can be reduced.

前記流入空間30内の被処理雨水3は、図4に矢印で示すように、前記取水部33を通してのみ前記内筒体23内に流入するものとなされている。そのために本実施例においては、該内筒体23の上端21の高さを、前記流入空間30内の被処理雨水3が該上端21から該内筒体23内に越流しないように設定している。具体的には、該内筒体23の上端21が、前記側溝2aの計画水位よりも上に位置するように設定している。   The treated rainwater 3 in the inflow space 30 flows into the inner cylindrical body 23 only through the water intake portion 33, as indicated by an arrow in FIG. Therefore, in the present embodiment, the height of the upper end 21 of the inner cylinder 23 is set so that the treated rainwater 3 in the inflow space 30 does not overflow into the inner cylinder 23 from the upper end 21. ing. Specifically, the upper end 21 of the inner cylindrical body 23 is set to be positioned above the planned water level of the side groove 2a.

前記側溝2aは、本実施例においては図1に示すように、門形を呈する側溝ブロック152,152相互を連結して構築されている。該側溝ブロック152は、図1〜3に示すように、対向する一対の側壁153,153の両端上部間を連結梁155,155で一体に連結すると共に両側壁153,153間の下部が全面開放状態となるように形成されている。かかる構成を有する側溝ブロック152を、例えば道路側部の延長方向に沿って掘削された掘削空間部に、その底部に設けた基礎コンクリート154上に相互を連結して敷設して後、連続した前記開放底部156に底部コンクリート157を打設することにより所要の水路勾配を有する側溝底159を形成し、然る後、前記側溝2aと前記掘削空間部との間に土砂を埋め戻す。   In the present embodiment, the side groove 2a is constructed by connecting the side groove blocks 152, 152 each having a gate shape, as shown in FIG. As shown in FIGS. 1 to 3, the side groove block 152 integrally connects the upper ends of both ends of a pair of opposing side walls 153 and 153 with connecting beams 155 and 155 and opens the lower portion between both side walls 153 and 153 entirely. It is formed to be in a state. After the gutter block 152 having such a configuration, for example, in the excavation space portion excavated along the extending direction of the road side portion, laid and connected to the foundation concrete 154 provided at the bottom thereof, the continuous groove block 152 By placing a bottom concrete 157 on the open bottom 156, a side groove bottom 159 having a required channel gradient is formed, and thereafter, earth and sand are backfilled between the side groove 2a and the excavation space.

そして図3に示すように、該側溝2aの側壁153の下端側160には連結挿入孔161が設けられ、該連結挿入孔161に前記流入管5の上流端側部分162が挿入され、該流入管5の外周面163と該連結挿入孔161の内周面165との間の隙間は例えばモルタル146で間詰めされる。これにより、該流入管5が該側壁部31に連結される。又図3〜4に示すように、該流入管5の下流端側部分167が前記外筒体20の側壁部169に設けられた前記流入管挿入孔62に挿入され、該流入管5の外周面170と該流入管挿入孔62の内周面171との間の隙間172は例えばモルタル146で間詰めされる。これにより、該流入管5が側溝2aに連結される。本実施例において、前記流入管5を前記側溝2aの側壁153の下端側160に連結しているのは、降雨量の少ないときにも、側溝2aを流下する被処理雨水3を有効活用して地下浸透させることができるようにするためである。かかる構成を有する側溝2aの深さは、該側溝2aに流入する雨水の量を考慮して所要に設定される。そして前記筒状濾過槽6の高さは、該側溝2aに対する前記流入管5の連結部173の高さを考慮して所要に設定される。   As shown in FIG. 3, a connection insertion hole 161 is provided at the lower end 160 of the side wall 153 of the side groove 2a, and the upstream end portion 162 of the inflow pipe 5 is inserted into the connection insertion hole 161, and the inflow A gap between the outer peripheral surface 163 of the pipe 5 and the inner peripheral surface 165 of the connection insertion hole 161 is filled with, for example, a mortar 146. Thereby, the inflow pipe 5 is connected to the side wall portion 31. As shown in FIGS. 3 to 4, the downstream end portion 167 of the inflow pipe 5 is inserted into the inflow pipe insertion hole 62 provided in the side wall portion 169 of the outer cylindrical body 20, and the outer periphery of the inflow pipe 5 is A gap 172 between the surface 170 and the inner peripheral surface 171 of the inflow pipe insertion hole 62 is filled with a mortar 146, for example. Thereby, the inflow pipe 5 is connected to the side groove 2a. In this embodiment, the inflow pipe 5 is connected to the lower end side 160 of the side wall 153 of the side groove 2a by effectively utilizing the treated rainwater 3 flowing down the side groove 2a even when the amount of rainfall is small. This is so that it can penetrate underground. The depth of the side groove 2a having such a configuration is set as required in consideration of the amount of rainwater flowing into the side groove 2a. And the height of the said cylindrical filtration tank 6 is set as required in consideration of the height of the connection part 173 of the said inflow pipe 5 with respect to this side groove 2a.

前記流入管5は、水勾配を有して配設されており、図4に示すように、その下流端の管底175は、前記流出管10の管底176よりも上に位置されているが、どの程度上に位置させるかは、前記側溝2a(雨水排水路2)から前記流入空間30に流入した被処理雨水3を前記雨水貯留槽11に重力の作用で自然流下により流入させることができる程度に設定される。本発明者の実験によれば、最低でも150mmは必要であることが分かった。図4においては、両管底175,176間の高さの差が410mm程度に設定されている。   The inflow pipe 5 is disposed with a water gradient, and as shown in FIG. 4, the pipe bottom 175 at the downstream end thereof is located above the pipe bottom 176 of the outflow pipe 10. However, how much is positioned above is that the treated rainwater 3 that has flowed into the inflow space 30 from the side groove 2a (rainwater drainage channel 2) is allowed to flow into the rainwater storage tank 11 by natural flow under the action of gravity. Set as much as possible. According to the experiments of the present inventor, it has been found that at least 150 mm is necessary. In FIG. 4, the height difference between the tube bottoms 175 and 176 is set to about 410 mm.

図4は、前記継足し筒104の下部分105を前記筒体76に連通状態に連結して構成した前記内筒体23の前記濾材支持部80に前記濾材7を載置した状態を示している。該濾材7は例えば、多孔質の発泡ポリプロピレンの細片や、活性炭、その他の公知の濾過素材からなり、図4、図9に示すように、例えばポリエチレンやポリエステル等の合成繊維を素材とするメッシュ状布からなる袋177に収容されている。このようにして濾材7を収容して構成された前記濾材袋79は、所要の変形性を有しており、その上面部179に引っ掛かり部180(図9)が設けられている。そして該濾材袋79は、前記内筒体23内に被処理雨水3が導入されたときに浮力で浮き上がるのを防止するために、浮上り防止部材181で下方向に押え付けられる。   FIG. 4 shows a state in which the filter medium 7 is placed on the filter medium support portion 80 of the inner cylinder 23 formed by connecting the lower portion 105 of the extension cylinder 104 to the cylinder 76 in a communicating state. Yes. The filter medium 7 is made of, for example, a porous foamed polypropylene strip, activated carbon, or other known filtering material. As shown in FIGS. 4 and 9, for example, a mesh made of synthetic fiber such as polyethylene or polyester is used. It is accommodated in a bag 177 made of a cloth. The filter medium bag 79 configured to accommodate the filter medium 7 in this way has a required deformability, and a hook portion 180 (FIG. 9) is provided on the upper surface portion 179 thereof. The filter bag 79 is pressed downward by a lift prevention member 181 to prevent the treated rainwater 3 from being lifted by buoyancy when the treated rainwater 3 is introduced into the inner cylinder 23.

該浮上り防止部材181は、図4、図9に示すように、前記濾材袋79を下方向に押える押え板182を有しており、該押え板182は、例えば、複数の通水孔183が設けられたメッシュ状を呈している。そして、該浮上り防止部材181の押え板182がこのようにして濾材袋79を下方向に押えた状態で、前記流出管10の上流開口端184が前記濾材7の上側に位置した状態となされる。このとき、該上流開口端184の全体が開放状態になることの他、該濾材袋79の収容状態の如何によって処理雨水を流出管10に円滑に流入させることができる限り、該上流開口端184の一部分が濾材袋79の上部分で塞がれた状態になってもよい。   As shown in FIGS. 4 and 9, the lifting prevention member 181 includes a press plate 182 that presses the filter medium bag 79 downward. The press plate 182 includes, for example, a plurality of water holes 183. It has a mesh shape provided with. Then, the upstream opening end 184 of the outflow pipe 10 is positioned above the filter medium 7 with the presser plate 182 of the lifting prevention member 181 pressing the filter medium bag 79 downward in this way. The At this time, as long as the entire upstream opening end 184 is in an open state, the upstream opening end 184 can be used as long as the treated rainwater can smoothly flow into the outflow pipe 10 depending on the accommodation state of the filter medium bag 79. A part of the filter medium bag 79 may be blocked by the upper part of the filter medium bag 79.

該浮上り防止部材181は、より具体的には図9、図12に示すように、前記押え板182の対向側185,185で且つ長方形の頂点位置で、上下に長い4本の棒状把手部材186a,186b,186c,186dが立設状態に設けられている。該対向側185,185に位置する2本の棒状把手部材186a,186b、186c,186dの夫々の上端部分は外側に直角に屈曲されて、屈曲係止部187,187,187,187が形成されている。そして、長方形の一方の長辺側に存する両棒状把手部材186a,186cの上端寄り部位相互、他方の長辺側に存する両棒状把手部材186b,186dの上端寄り部位相互が、夫々、持ち手横杆189a,189bで連結されている。該浮上り防止部材181を構成する棒状把手部材186a,186b,186c,186dの長さ及び該持ち手横杆189a,189bの配設高さは前記筒状濾過槽6の高さに応じて設定されるものであり、前記蓋版49を取り外した状態で、前記濾材袋79を下方向に押えた状態にある浮上り防止部材181を、前記持ち手横杆189a,189bを手で握って持ち上げることができる程度に設定されている。   More specifically, as shown in FIGS. 9 and 12, the anti-lifting member 181 includes four rod-like handle members that are long in the vertical direction on the opposite sides 185 and 185 of the holding plate 182 and at the vertex position of the rectangle. 186a, 186b, 186c, 186d are provided in a standing state. The upper end portions of the two rod-like handle members 186a, 186b, 186c, and 186d positioned on the opposite sides 185 and 185 are bent at right angles to the outside to form bending locking portions 187, 187, 187, and 187. ing. Then, the portions near the upper ends of the two rod-like handle members 186a and 186c existing on one long side of the rectangle, and the portions near the upper ends of the two rod-like handle members 186b and 186d existing on the other long side are respectively lateral to the handle. It is connected with the flanges 189a and 189b. The lengths of the rod-like handle members 186a, 186b, 186c, and 186d constituting the lifting prevention member 181 and the arrangement heights of the handle lateral ribs 189a and 189b are set according to the height of the tubular filtration tank 6. In the state where the cover plate 49 is removed, the lifting prevention member 181 in a state in which the filter material bag 79 is pressed downward is lifted by grasping the handle lateral ribs 189a and 189b with a hand. It is set to the extent that it can.

そして前記屈曲係止部187,187,187,187は、図12〜13に示すように、前記継足し筒29の上端に設けられた欠切凹部190,190,190,190(図9)の対応のものに嵌め入れられ、その後、半円弧状に屈曲した2個の押え部材191,191が、その下面188が前記屈曲係止部187の、例えば先端頭部187aに当接した状態で、前記円形リング部材45の内周面192に着脱可能にボルト193で固定される。これにより、前記屈曲係止部187が前記欠切凹部190に拘束された状態となり、前記浮上り防止部材181の浮上りが阻止される。従って前記濾材袋79は、前記押え板182によって上から押さえ付けられた状態で、浮力で浮上がることなく定位置に固定される。   And the said bending latching | locking part 187,187,187,187 is the notch recessed part 190,190,190,190 (FIG. 9) provided in the upper end of the said addition cylinder 29, as shown in FIGS. The two presser members 191 and 191 which are fitted into the corresponding ones and then bent in a semicircular arc shape have their lower surfaces 188 in contact with, for example, the distal end head portion 187a of the bending locking portion 187, The circular ring member 45 is detachably fixed to the inner peripheral surface 192 with bolts 193. Accordingly, the bending locking portion 187 is constrained by the notch recess 190, and the lifting prevention member 181 is prevented from rising. Therefore, the filter medium bag 79 is fixed at a fixed position without being lifted by buoyancy while being pressed from above by the presser plate 182.

この状態で、図2、図4に示すように、前記雨水排水路2(側溝2a)からの被処理雨水3が、前記取水部33及び前記筒体76の前記下端75を通して前記内筒体23内に導入され、これが、前記濾材袋79を下方から上方へ通過することにより、該被処理雨水3に含まれている汚濁物質が前記濾材7によって濾過や吸着により除去される。汚濁物質が低減された綺麗な処理雨水9が前記押え板182の前記通水孔183を通して上昇し、その後、前記流出管10を通して排出される。   In this state, as shown in FIGS. 2 and 4, the treated rainwater 3 from the rainwater drainage channel 2 (side groove 2 a) passes through the water intake portion 33 and the lower end 75 of the cylindrical body 76 and the inner cylindrical body 23. This is introduced into the filter medium, and passes through the filter medium bag 79 from the bottom to the top, so that the pollutant contained in the treated rainwater 3 is removed by the filter medium 7 by filtration or adsorption. Clean treated rainwater 9 with reduced contaminants rises through the water passage holes 183 of the presser plate 182 and then is discharged through the outflow pipe 10.

前記濾材袋79は、定期的に新品と交換されることにより、安定した濾過性能を継続して確保できることになる。この濾材袋79の交換に際しては、前記押え部材191,191を前記円形リング部材45から取り外して後、前記浮上り防止部材181の前記持ち手横杆189a,189bを手で握って該浮上り防止部材181を持ち上げる。その後、引き上げ棒材の下端のフック部を前記濾材袋79の上面部179に設けられている前記引っ掛かり部180に引っ掛けて後、該濾材袋79を引き上げる。然る後、該引き上げ棒材の前記フック部を新品の濾材袋79の引っ掛かり部180に引っ掛けた状態で吊り降ろし、前記濾材支持部80に載置し該フック部を引っ掛かり部180から外す。その後、図4に示すように、前記浮上り防止部材181を前記内筒体23内に挿入し、前記屈曲係止部187,187,187,187を、前記欠切凹部190,190,190,190の対応のものに嵌め入れる。然る後、前記と同様にして、前記押え部材191,191を前記円形リング部材45の内周面192にボルト193で着脱可能に固定する。これにより、浮上り防止部材181の前記押え板182が濾材袋79の浮上りを阻止し、該濾材袋79を定位置に固定できる。   The filter medium bag 79 is continuously replaced with a new one, so that stable filtration performance can be continuously secured. When replacing the filter medium bag 79, the presser members 191 and 191 are removed from the circular ring member 45, and then the handle side bars 189a and 189b of the lift prevention member 181 are gripped by hand to prevent the lift. The member 181 is lifted. Thereafter, the hook portion at the lower end of the lifting bar is hooked on the hooking portion 180 provided on the upper surface portion 179 of the filtering material bag 79, and then the filtering material bag 79 is pulled up. Thereafter, the hook part of the lifting bar is hung down in a state of being hooked on the hook part 180 of a new filter medium bag 79, placed on the filter medium support part 80, and the hook part is removed from the hook part 180. Thereafter, as shown in FIG. 4, the anti-lifting member 181 is inserted into the inner cylindrical body 23, and the bending locking portions 187, 187, 187, 187 are inserted into the notched recesses 190, 190, 190, Fit into 190 counterparts. Thereafter, in the same manner as described above, the holding members 191 and 191 are detachably fixed to the inner peripheral surface 192 of the circular ring member 45 with bolts 193. Thereby, the presser plate 182 of the anti-lifting member 181 prevents the filter medium bag 79 from rising, and the filter medium bag 79 can be fixed in place.

前記濾材袋79を引き上げた状態で、前記内筒体23の上端21から吸管を投入し該吸管の下端部分を、前記濾材支持部80に設けられている格子目(網目)93(図6)を通して下方に挿入し、前記泥溜め部135(図4、図8)に沈殿している沈殿物を該吸管の吸引作用によって吸引排除する。この場合、例えば図8(A)に一点鎖線で示すように、前記外筒体20の底面133をその中央部分に向けて下方に傾斜した傾斜面として形成する場合は、該吸管の吸引作用によって、外筒体20の底面133の全体に沈殿している沈殿物を該中央部分に移動させ易くなり、沈殿物を効率よく吸引して排除できることになる。前記筒状濾過槽6においては、このように、前記流入空間30に流入した被処理雨水中の汚濁物質を前記底面133に沈殿させることができるため、濾材7の濾過負担を軽減できる。   In a state where the filter medium bag 79 is pulled up, a suction pipe is introduced from the upper end 21 of the inner cylindrical body 23, and a lower end portion of the suction pipe is formed into a lattice (mesh) 93 provided on the filter medium support portion 80 (FIG. 6). The sediment deposited in the mud reservoir 135 (FIGS. 4 and 8) is sucked out by the suction action of the suction pipe. In this case, for example, when the bottom surface 133 of the outer cylindrical body 20 is formed as an inclined surface that is inclined downward toward the central portion, as shown by a one-dot chain line in FIG. In addition, it becomes easy to move the sediment precipitated on the entire bottom surface 133 of the outer cylinder 20 to the central portion, and the sediment can be efficiently sucked and removed. In the cylindrical filtration tank 6, the pollutant in the treated rainwater that has flowed into the inflow space 30 can be precipitated on the bottom surface 133 in this way, so that the filtration burden on the filter medium 7 can be reduced.

前記地下浸透層12は例えば図1〜2、図14に示すように、10cm程度の厚さを有する敷き砂196上に、透水性を有し且つ土が進入するのを防止し得る不織布製の透水シート197で全体が被覆された砕石層199を設けてなり、該砕石層199の例えば上側部分を横断するように前記流出管10が配設されている。該地下浸透層12の平面視での面積や上下厚さは、該地下浸透層12で流出させるべき処理雨水の量を考慮して所要に設定されるものである。   For example, as shown in FIGS. 1 and 2 and 14, the underground infiltration layer 12 is made of a non-woven fabric that has water permeability and prevents entry of soil on a spread sand 196 having a thickness of about 10 cm. A crushed stone layer 199 entirely covered with a water permeable sheet 197 is provided, and the outflow pipe 10 is disposed so as to cross, for example, an upper portion of the crushed stone layer 199. The area and vertical thickness of the underground seepage layer 12 in plan view are set as required in consideration of the amount of treated rainwater to be discharged from the underground seepage layer 12.

前記流出管10の該横断する管部分13は、処理雨水を排出させる流出孔15が分散状態に多数設けられてなる有孔管部201とされている。前記流出管10の前記下流管10cは、一連に形成されてもよいのであるが、本実施例においては図14に示すように、該有孔管部201は、独立した一本の有孔管202として構成されている。即ち該流出管10は、該有孔管202とその前後の分割管203,205とに3分割されており、該有孔管202と前の分割管203及び、該有孔管202と後の分割管205は、夫々、ソケット部206に端部分207を挿入して連結されている。   The transverse pipe portion 13 of the outflow pipe 10 is a perforated pipe section 201 in which a large number of outflow holes 15 for discharging treated rainwater are provided in a dispersed state. Although the downstream pipe 10c of the outflow pipe 10 may be formed in series, in the present embodiment, as shown in FIG. 14, the perforated pipe portion 201 is an independent single perforated pipe. 202 is configured. That is, the outflow pipe 10 is divided into the perforated pipe 202 and the divided pipes 203 and 205 before and behind the perforated pipe 202, and the perforated pipe 202, the front divided pipe 203, the perforated pipe 202 and the rear pipe. Each of the split tubes 205 is connected by inserting an end portion 207 into the socket portion 206.

そして、前記地下浸透層12から突出状態の突出管部209の下流端部分210(前記流出管10の下流部211)は、図2に示すように、前記雨水貯留槽11の側壁部212の上部213に設けた挿入孔215に挿入状態で固定されており、該雨水貯留槽11には、貯留水を排出するための前記排出部17が設けられている。以下に、該排出部17を例示する。   And the downstream end part 210 (downstream part 211 of the said outflow pipe | tube 10) of the protruding pipe part 209 of the state which protrudes from the said underground seepage layer 12 is the upper part of the side wall part 212 of the said rainwater storage tank 11, as shown in FIG. The rainwater storage tank 11 is provided with the discharge portion 17 for discharging the stored water. Below, this discharge part 17 is illustrated.

図2においては、貯留槽底部216に凹設したピット217に設置された水中ポンプ219で汲み上げた貯留水を、排水管220を介して、中水として利用可能としたり、河川に放流させるようになされており、該排水管220の端部221が前記排出部17である。中水としての利用には、洗車や散水のための利用、園芸用水、融雪用水、トイレ用水、緊急時の防火用水、生活用水等としての利用を挙げることができる。又、図15においては、該雨水貯留槽11の側壁部212の下部222に開口した排水孔223に連結された排水管225を介して、貯留水が直接河川等に自然流下で放流されるようになされており、該排水管225の端部226が前記排出部17である。特に図15に一点鎖線で示すように、前記側壁部212の中間高さ部位に設けた排水孔227に排水管229を連設して雨水貯留槽11内の貯留水を河川等に放流するように構成した場合は、該排水孔227よりも下側に貯留されている貯留水230を中水として利用できる。   In FIG. 2, the stored water pumped up by the submersible pump 219 installed in the pit 217 recessed in the storage tank bottom 216 can be used as intermediate water through the drain pipe 220 or discharged into the river. The end 221 of the drainage pipe 220 is the discharge part 17. Examples of the use as middle water include use for car washing and watering, horticultural water, snow melting water, toilet water, fire prevention water for emergency, and water for daily life. Further, in FIG. 15, the stored water is discharged directly into a river or the like directly through a drain pipe 225 connected to a drain hole 223 opened in the lower portion 222 of the side wall portion 212 of the rainwater storage tank 11. The end portion 226 of the drain pipe 225 is the discharge portion 17. In particular, as shown by a one-dot chain line in FIG. 15, a drainage pipe 229 is connected to a drainage hole 227 provided at an intermediate height portion of the side wall portion 212 so that the stored water in the rainwater storage tank 11 is discharged to a river or the like. In the case of the configuration, the stored water 230 stored below the drain hole 227 can be used as middle water.

又図16に示す雨水貯留槽11は、中水として利用される雨水を貯留しておく中水利用槽231に、中間隔壁部232を介して、河川等に放流される雨水を一時的に貯留する雨水一時貯留槽233を連設した構成を有している。前記突出管部209の下流端部分210が、前記中水利用槽231の側壁部235の上部236に設けた挿入孔237に挿入状態で固定されると共に、前記中間隔壁部232の上端部分に越流開口部239が設けられている。そして、該越流開口部239で越流して前記雨水一時貯留槽233に流入した雨水は、図2に示したと同様にして、貯留槽底部235に凹設したピット236に設置された水中ポンプ(図示せず)で汲み上げられ、排水管を介して河川に放流されるようになされている。この場合は、該排水管の端部が前記排出部17である。或いは図16に示すように、該雨水一時貯留槽233の側壁部212の下部241に開口した排水孔242に連設された排水管243を介して貯留水が自然流下で河川等に放流されるようになされており、該排水管243の端部245が前記排出部17である。そして、前記中水利用槽231内の貯留水246は、中水利用槽底部247に設けたピット249に設置された水中ポンプ250で汲み上げて中水として利用できる。   In addition, the rainwater storage tank 11 shown in FIG. 16 temporarily stores rainwater discharged into a river or the like via the intermediate partition wall 232 in the intermediate water use tank 231 that stores rainwater used as intermediate water. The rainwater temporary storage tank 233 is arranged continuously. A downstream end portion 210 of the projecting pipe portion 209 is fixed in an inserted state in an insertion hole 237 provided in an upper portion 236 of the side wall portion 235 of the middle water use tank 231, and passes over the upper end portion of the intermediate partition wall portion 232. A flow opening 239 is provided. Then, the rainwater that overflows at the overflow opening 239 and flows into the rainwater temporary storage tank 233 is the same as that shown in FIG. 2, and the submersible pump installed in the pit 236 recessed in the storage tank bottom 235 ( (Not shown) and pumped to the river via the drain pipe. In this case, the end of the drain pipe is the discharge part 17. Alternatively, as shown in FIG. 16, the stored water is discharged into a river or the like under a natural flow through a drain pipe 243 connected to a drain hole 242 opened in the lower portion 241 of the side wall portion 212 of the rainwater temporary storage tank 233. The end 245 of the drain pipe 243 is the discharge part 17. And the stored water 246 in the said middle water utilization tank 231 can be pumped up by the submersible pump 250 installed in the pit 249 provided in the middle water utilization tank bottom part 247, and can be utilized as middle water.

前記流出管10に流入した前記処理雨水9は、前記流出孔15から前記地下浸透層12に流出されるが、該地下浸透層12によって大きな浸透面積を確保できるため、該流出した処理雨水9を該地下浸透層12の周辺地盤に効率的に浸透させることができる。これによって地下水の涵養を図り、地盤沈下の防止や植物への水分補給を達成でき、又、地下水を汲み上げて各種に利用することもできる。そして、前記地下浸透層12で地下浸透する雨水は、前記筒状濾過槽6で濾過処理された綺麗な雨水であるため、該地下浸透層12を目詰まりさせにくい。加えて、前記砕石層199は前記透水シート197で被覆されているため、地下浸透層12の目詰まりを極力抑制しながら処理雨水9の地下浸透を効率的に図ることができる。又、このように綺麗な処理雨水を地下浸透させるため、地下水を汚染することもない。   The treated rainwater 9 that has flowed into the outflow pipe 10 flows out from the outflow hole 15 to the underground infiltration layer 12, but since the large infiltration area can be secured by the underground infiltration layer 12, It is possible to efficiently infiltrate the ground around the underground infiltration layer 12. In this way, groundwater can be recharged, ground subsidence can be prevented and water can be replenished to plants, and groundwater can be pumped up and used for various purposes. And since the rainwater which infiltrates underground with the said underground permeation layer 12 is the beautiful rainwater filtered by the said cylindrical filtration tank 6, it is hard to clog the said underground permeation layer 12. FIG. In addition, since the crushed stone layer 199 is covered with the water-permeable sheet 197, the underground penetration of the treated rainwater 9 can be efficiently achieved while suppressing the clogging of the underground penetration layer 12 as much as possible. Moreover, since such clean treated rainwater is infiltrated underground, the groundwater is not contaminated.

そして、地下浸透できる量を越えた余剰の処理雨水は前記雨水貯留槽11に流入することになるが、該流入水は、前記のように中水として利用可能である。特に豪雨時等の非常時においては、地下浸透を優先してそれを超える分を雨水貯留槽11に貯留できるため、前記処理雨水9を雨水貯留槽11に直接的に流入させる場合に比し、該雨水貯留槽11への処理雨水の流入量を減少させて雨水貯留槽11の負担軽減を達成できる。その結果、豪雨時における河川への雨水流出を効果的に抑制できることとなり、河川の氾濫防止に寄与できる。   And the surplus treated rainwater that exceeds the amount that can penetrate underground flows into the rainwater storage tank 11, and the inflow water can be used as middle water as described above. Especially in the case of an emergency such as heavy rain, the amount exceeding the underground infiltration can be stored in the rainwater storage tank 11, so that compared with the case where the treated rainwater 9 flows directly into the rainwater storage tank 11, The amount of treated rainwater flowing into the rainwater storage tank 11 can be reduced to reduce the burden on the rainwater storage tank 11. As a result, rainwater outflow to the river during heavy rain can be effectively suppressed, which can contribute to prevention of river flooding.

このように本発明に係る雨水処理装置1によるときは、平常時においては地下水の涵養を図ることができ、非常時においては河川への急激な雨水流出を抑制できるのである。   As described above, when the rainwater treatment apparatus 1 according to the present invention is used, groundwater can be recharged in a normal time, and a sudden rainwater outflow to a river can be suppressed in an emergency.

本発明は、前記実施例で示したものに限定されるものでは決してなく、特許請求の範囲の記載内で種々の設計変更が可能であることはいうまでもない。その一例を挙げれば次のようである。   The present invention is by no means limited to those shown in the above-described embodiments, and it goes without saying that various design changes can be made within the scope of the claims. One example is as follows.

(1) 図17〜18は、雨水処理装置1の他の態様を示すものであり、前記側溝2aは、前記実施例で示した場合よりも深く形成されると共に、前記継足し筒104の長さも長く形成されている。該側溝2aの深さは、側溝2aに流入する雨水の流入量を考慮して設定されるものである。又本実施例においては、筒状濾過槽6が、車道と歩道との境界部分や、歩道とそれに連なる土地との接続部分等、側溝の構築場所よりも一段高くなった場所に構築される場合が示されており、継足し筒104の長さを長く設定することによって内筒体23の上下長さを大きく設定し、これによって筒状濾過槽6の必要高さに応じている。この場合も、前記実施例で示したと同様の上下長さを有する濾過槽本体部材26を用いて内筒体23の下側部分を構成しており、継足し筒104の長さの設定だけで筒状濾過槽6の高さの増大に応じている。 (1) FIGS. 17 to 18 show another embodiment of the rainwater treatment apparatus 1, and the side groove 2 a is formed deeper than the case shown in the embodiment, and the length of the extension cylinder 104 is shown. It is also long. The depth of the side groove 2a is set in consideration of the amount of rainwater flowing into the side groove 2a. Further, in this embodiment, the cylindrical filtration tank 6 is constructed at a location that is one step higher than the construction location of the gutter, such as a boundary portion between the roadway and the sidewalk, or a connection portion between the sidewalk and the land connected thereto. The upper and lower lengths of the inner cylinder body 23 are set to be large by setting the length of the extension cylinder 104 to be long, and this corresponds to the required height of the cylindrical filtration tank 6. Also in this case, the lower part of the inner cylindrical body 23 is configured by using the filtration tank main body member 26 having the same vertical length as that shown in the above embodiment, and only the length of the extension cylinder 104 is set. It responds to the increase in the height of the cylindrical filtration tank 6.

(2) 前記筒状濾過槽6を構成する前記有底の外筒体20は、高さが比較的低いものであればコンクリート製等の一体物として構成することもできるが、例えば図18に示すように、上下端251,252が開放された所要高さのコンクリート製の筒状ブロック253を所要段数積重することによって構成することもできる。この積重は、基礎40上に載置された底版部材41上で行なう。又その積重段数は、必要な外筒体20の高さを考慮して設定する。 (2) The bottomed outer cylindrical body 20 constituting the cylindrical filtration tank 6 can be configured as an integral object such as concrete as long as the height is relatively low. As shown, a concrete cylindrical block 253 having a required height with the upper and lower ends 251 and 252 open may be stacked for a required number of steps. This stacking is performed on the bottom plate member 41 placed on the foundation 40. The number of stacked stages is set in consideration of the required height of the outer cylinder 20.

このように構成するときは、該筒状ブロック253の積重段数を所要に設定すると共に所要長さの継足し筒104を前記筒体76に連結することにより、所要高さの筒状濾過槽6を、組み立て方式で簡易に構成できることとなる。これにより、筒状濾過槽構築の施工性向上と施工コストの低減を期し得ることとなる。   When configured in this manner, a cylindrical filtration tank having a required height is obtained by setting the required number of stacking stages of the cylindrical blocks 253 and connecting the additional cylinder 104 having a required length to the cylinder 76. 6 can be simply configured by an assembly method. Thereby, the workability improvement of cylindrical filtration tank construction and the reduction of construction cost can be expected.

そして図18に示すように、所要段にある筒状ブロック253a(例えば下から3段目の筒状ブロック253)に前記流入管挿入孔62を設け、前記流入管5の下流端側部分167を該流入管挿入孔62に挿入して該筒状ブロック253aに固定する。又、所要段数にある筒状ブロック253b(例えば下から2段目の筒状ブロック253)に前記流出管挿通孔63を設け、前記流出管10を該流出管挿通孔63に挿通して前記内筒体23の側壁部36に連結する。該流入管挿入孔62と該流出管挿通孔63は、同一の筒状ブロックに設けられることもある。   As shown in FIG. 18, the inflow pipe insertion hole 62 is provided in a cylindrical block 253 a (for example, the third-stage cylindrical block 253 from the bottom) at a required stage, and the downstream end side portion 167 of the inflow pipe 5 is provided. It inserts in this inflow pipe insertion hole 62, and fixes to this cylindrical block 253a. In addition, the outflow pipe insertion hole 63 is provided in the cylindrical block 253b (for example, the second-stage cylindrical block 253 from the bottom) having the required number of stages, and the outflow pipe 10 is inserted into the outflow pipe insertion hole 63 to It connects with the side wall part 36 of the cylinder 23. The inflow pipe insertion hole 62 and the outflow pipe insertion hole 63 may be provided in the same cylindrical block.

図4、図18においては、最上段の筒状ブロック253cは上方に向けて小径となる円錐状を呈しているが、図19においては、外筒体20がその全長に亘って同径に構成されている。   4 and 18, the uppermost cylindrical block 253c has a conical shape with a small diameter upward, but in FIG. 19, the outer cylindrical body 20 is configured to have the same diameter over its entire length. Has been.

かかる構成を有する外筒体20は、図4、図19に示すように、上端開放部47が蓋版49で閉蓋される。   As shown in FIGS. 4 and 19, the outer cylinder 20 having such a configuration has the upper end opening portion 47 closed by a lid plate 49.

(3) 前記内筒体23は、前記のように構成された濾過槽本体部材26の上部連結管部106に継足し筒104の下部分105を連通状態に連結して構成されるが、該連結構造は、前記した場合とは逆に、図20に示すように、継足し筒104の下部分105に拡大連結管部106aを設け、該拡大連結管部106aに前記筒体76の上部分255を挿入して構成することもできる。 (3) The inner cylindrical body 23 is configured by connecting the lower portion 105 of the cylinder 104 in a communicating state by adding to the upper connecting pipe portion 106 of the filtration tank body member 26 configured as described above. Contrary to the case described above, the connecting structure is provided with an enlarged connecting pipe portion 106a in the lower portion 105 of the extension tube 104, as shown in FIG. 255 may be inserted.

又、該継足し筒104の下部分105を前記上部連結管部106に連結する構成は、前記のように、前記下部分105や前記上部分255を拡大連結管部106aに挿入することの他、該下部分105と該上部連結管部106とをねじ込み方式で連結することもできる。   In addition, the configuration in which the lower portion 105 of the extension tube 104 is connected to the upper connecting pipe portion 106 is that the lower portion 105 and the upper portion 255 are inserted into the enlarged connecting pipe portion 106a as described above. The lower portion 105 and the upper connecting pipe portion 106 can be connected by a screwing method.

更には図21に示すように、前記筒体76の上部分103と前記継足し筒104の下部分105相互を連結筒275を介して連結することもできる。該連結筒275は、環状部276の上下端に上下のソケット部277,279が連設されており、該下のソケット部279に前記上部分を挿入すると共に該上のソケット部277に前記下部分105を挿入することによって前記継足し筒104の下部分105を筒体76の上部分103に連結できて所要の内筒体23を構成できる。   Furthermore, as shown in FIG. 21, the upper portion 103 of the cylinder 76 and the lower portion 105 of the extension cylinder 104 can be connected to each other via a connecting cylinder 275. The connecting cylinder 275 has upper and lower socket portions 277 and 279 connected to upper and lower ends of the annular portion 276, and the upper portion is inserted into the lower socket portion 279 and the lower socket portion 277 has the lower portion. By inserting the portion 105, the lower portion 105 of the extension tube 104 can be connected to the upper portion 103 of the cylinder 76, and the required inner cylinder 23 can be configured.

(4) 前記内筒体23の下部側に取水部33を設ける構成は、図22〜23に示すように、該筒体76の側壁部110の下端部分256に欠切部257や開口部259を設け、これらを以て取水部33とすることもある。このように構成する場合、該筒体76の下端(即ち、内筒体23の下端22)が閉蓋されることもある。 (4) The structure in which the water intake portion 33 is provided on the lower side of the inner cylindrical body 23 has a notch 257 and an opening 259 at the lower end portion 256 of the side wall 110 of the cylindrical body 76 as shown in FIGS. These may be used as the intake section 33. In the case of such a configuration, the lower end of the cylindrical body 76 (that is, the lower end 22 of the inner cylindrical body 23) may be closed.

(5) 前記外筒体20内に内筒体23を立設状態に納設する際、該外筒体20と該内筒体23の軸線を略合致させることの他、両者の軸線が位置ずれする場合もある。 (5) When the inner cylinder 23 is placed upright in the outer cylinder 20, the axes of the outer cylinder 20 and the inner cylinder 23 are substantially aligned with each other. There is a case where it shifts.

(6) 前記内筒体23内には、その下部側に設けられた取水部33を通してだけ被処理雨水3が流入するものであり、内筒体23の上端21から内筒体23の内部に被処理雨水3が流入することはない。これは、濾過処理されていない被処理雨水が前記流出管10を介して筒状濾過槽6外に排出されるのを防止するためである。 (6) The treated rainwater 3 flows into the inner cylindrical body 23 only through the water intake portion 33 provided on the lower side thereof, and the inner cylindrical body 23 enters the inner cylindrical body 23 from the upper end 21 thereof. The treated rainwater 3 does not flow in. This is to prevent the treated rainwater that has not been filtered from being discharged out of the cylindrical filtration tank 6 through the outflow pipe 10.

そのために、前記内筒体23の上端21は、前記流入管5からの被処理雨水3が該内筒体23内に越流しない高さに設定されるのであるが、越流の恐れがある場合は、該内筒体23の上端21が、例えば図24に示すように密閉蓋(樹脂製や鋳鉄製等)261で閉蓋される。該密閉蓋261は、下面にパッキン材262が設けられてなり、該密閉蓋261を密閉した状態では、該パッキン材262が内筒体23の上端21に密着した状態となり、内筒体23内に水が入らないようになされる。該蓋版261の上面には把手(図示せず)が設けられている。   Therefore, the upper end 21 of the inner cylinder 23 is set to a height at which the treated rainwater 3 from the inflow pipe 5 does not overflow into the inner cylinder 23, but there is a risk of overflow. In this case, the upper end 21 of the inner cylindrical body 23 is closed with a sealing lid (made of resin, cast iron, etc.) 261 as shown in FIG. The sealing lid 261 is provided with a packing material 262 on the lower surface. When the sealing lid 261 is sealed, the packing material 262 is in close contact with the upper end 21 of the inner cylinder 23, so Water is prevented from entering. A handle (not shown) is provided on the upper surface of the lid 261.

そして本実施例においては、このように密閉した状態で、該蓋版261の下面263が、前記浮上り防止部材181の把手265の上端266に当接した状態となされる。該蓋版261の固定は、例えば、前記と同様構成の押え部材191を用いて行うことができる。より具体的には、該押え部材191が該蓋版261の上面の周縁部分267を押えた状態で、該押え部材191を前記円形リング状部材83の内周面に着脱可能にボルト固定することにより行なうことができる。   In this embodiment, the lower surface 263 of the cover plate 261 is in contact with the upper end 266 of the handle 265 of the lifting prevention member 181 in such a sealed state. The lid 261 can be fixed using, for example, a holding member 191 having the same configuration as described above. More specifically, the presser member 191 is detachably bolted to the inner peripheral surface of the circular ring-shaped member 83 in a state where the presser member 191 presses the peripheral edge portion 267 of the upper surface of the cover 261. Can be performed.

このように蓋版261で閉蓋する場合において、前記濾材袋79を交換する際は、前記流入空間30内の水位が前記内筒体23の上端21よりも下がった状態で、前記押え部材191,191を取り外して該蓋版261を除去する。その後、前記と同様にして、前記上端266を握って浮上り防止部材181を持ち上げる。その後の交換要領は前記したところと同様である。   Thus, when the lid 261 is closed, when the filter medium bag 79 is replaced, the presser member 191 is in a state where the water level in the inflow space 30 is lower than the upper end 21 of the inner cylindrical body 23. , 191 are removed and the cover plate 261 is removed. Thereafter, in the same manner as described above, the lifting prevention member 181 is lifted by grasping the upper end 266. Subsequent replacement procedures are the same as described above.

(7) 前記外筒体20や前記内筒体23は、横断面が円形状に構成されることの他、楕円形や角形等の多角形状等、非円形状に構成されることもある。又、該内筒体23と該外筒体20の断面形状は異なっていてもよい。又それらの材質は、コンクリート製や、塩化ビニル等の樹脂製、ステンレス製等の金属製とされることもある。又、該有底の外筒体20は、合成樹脂の一体成形品として構成できる他、現場打ち施工によって構成されることもある。 (7) The outer cylindrical body 20 and the inner cylindrical body 23 may be configured to have a non-circular shape such as an elliptical shape or a polygonal shape such as a rectangular shape in addition to a circular shape in cross section. Moreover, the cross-sectional shapes of the inner cylinder 23 and the outer cylinder 20 may be different. Further, these materials may be made of concrete, resin such as vinyl chloride, or metal such as stainless steel. In addition, the bottomed outer cylinder 20 can be configured as an integrally molded product of synthetic resin, or may be configured by on-site construction.

(8) 前記内筒体23内に収容された濾材7(濾材袋79)が浮力で浮き上がる恐れがあるときは、前記したように、浮上り防止部材181で上から押えることになるが、該浮上り防止部材181は、濾材7を交換する際に該浮上り防止部材181による押圧を解除できるものである限り前記したものには特定されない。 (8) When there is a possibility that the filter medium 7 (filter medium bag 79) accommodated in the inner cylindrical body 23 is lifted by buoyancy, as described above, it is pressed from above by the lift prevention member 181. The lift preventing member 181 is not specified as described above as long as the pressure preventing member 181 can be released when the filter medium 7 is replaced.

(9) 該内筒体23に収容される前記濾材袋79は、上下複数段に収容されることもある。 (9) The filter medium bag 79 accommodated in the inner cylindrical body 23 may be accommodated in a plurality of upper and lower stages.

(10)前記筒体76の内部74に濾材7を収容する構成は、前記のように筒体76に設けた濾材支持部80で濾材7を下方から支持する如く構成することの他、例えば、前記と同様に構成された浮上り防止部材181の下面に濾材7を取り付けて行なうこともできる。その他、濾材7を筒体76の内部に、被処理雨水を濾過できる所要状態で収容できるものであれば、各種の構成を採用できる。 (10) The configuration in which the filter medium 7 is accommodated in the inside 74 of the cylinder 76 is configured such that the filter medium 7 is supported from below by the filter medium support portion 80 provided in the cylinder 76 as described above. It is also possible to attach the filter medium 7 to the lower surface of the lifting prevention member 181 configured in the same manner as described above. In addition, various configurations can be adopted as long as the filter medium 7 can be accommodated in the cylindrical body 76 in a required state in which treated rainwater can be filtered.

(11)前記筒体76の内部74の下端側に設けられる前記濾材支持部80は、前記した網状板として構成することの他、濾材7を下方から安定的に載置状態で支持し得る各種の支持部を具えるものとして構成できる。 (11) The filter medium support portion 80 provided on the lower end side of the inside 74 of the cylindrical body 76 is configured as the above-described net-like plate, and various types capable of stably supporting the filter medium 7 from below. It can comprise as a thing provided with the support part.

(12)前記台座装置117において、図25に示すように、前記ナット131の内側面280と前記筒体76の外周面281との当接による係合によって、前記内筒体23がその水平方向での移動が阻止されるように構成されることもある。 (12) In the pedestal device 117, as shown in FIG. 25, the inner cylinder 23 is moved in the horizontal direction by the engagement of the inner surface 280 of the nut 131 and the outer peripheral surface 281 of the cylinder 76 by contact. It may be configured to prevent movement in

(13)前記台座装置117は、前記支柱ボルト119aの3本又は2本を、前記底版部材41の上面部120で、周方向に120度又は180度の角度を置いて立設して構成することもできる。なお、該支柱ボルト119aに代えて、ネジ軸部を有さない支柱部材を用いて台座装置117を構成することもできる。 (13) The pedestal device 117 is configured by standing three or two of the column bolts 119a on the upper surface portion 120 of the bottom plate member 41 at an angle of 120 degrees or 180 degrees in the circumferential direction. You can also. In addition, it can replace with this support | pillar bolt 119a and can also comprise the base apparatus 117 using the support | pillar member which does not have a screw shaft part.

高さ調整可能な台座装置117を用いて前記取水部33を構成する場合、該台座装置117は、前記底面133上に間隔を置いて固定された台座片を用いて構成することもでき、該台座片上に前記内筒体23の下端22を載置することによって、該台座片間の空間部分と前記内筒体23の下端22とにより前記取水部33を構成することもできる。   When the water intake section 33 is configured using a pedestal device 117 that can be adjusted in height, the pedestal device 117 can also be configured using a pedestal piece that is fixed on the bottom surface 133 at an interval. By placing the lower end 22 of the inner cylindrical body 23 on the pedestal piece, the water intake portion 33 can be constituted by the space between the pedestal pieces and the lower end 22 of the inner cylindrical body 23.

(14)前記雨水排水路2は、図1に示すような、門形の側溝ブロック152を順次連結してその底部に底部コンクリート157を打設してなる側溝2aとして構成できることの他、U字溝ブロックを順次連結してなる側溝として構成することもできる。U字溝ブロックを連結する場合は、前記流入管5の上流端側部分をU字溝ブロックの側壁部に連結することの他、U字溝の中間部に配設された枡部に該上流端側部分を連結することもある。更に該雨水排水路2は、例えば図19に示すように、ボックスカルバート275を順次連結して構築された暗渠2bとして構成されることもある。この場合、前記流入管5は、例えば同図に実線や一点鎖線で示すようにボックスカルバート275の側壁254に連結できる。 (14) The rainwater drainage channel 2 can be configured as a side groove 2a, as shown in FIG. 1, in which a gate-shaped side groove block 152 is sequentially connected and a bottom concrete 157 is placed at the bottom thereof. It can also be configured as a side groove formed by sequentially connecting the groove blocks. When connecting the U-shaped groove block, the upstream end side portion of the inflow pipe 5 is connected to the side wall portion of the U-shaped groove block, and the upstream portion is connected to the flange portion disposed in the middle portion of the U-shaped groove. The end portions may be connected. Further, the rainwater drainage channel 2 may be configured as a culvert 2b constructed by sequentially connecting box culverts 275 as shown in FIG. 19, for example. In this case, the inflow pipe 5 can be connected to the side wall 254 of the box culvert 275, for example, as indicated by a solid line or a one-dot chain line in FIG.

(15)前記流入管5の前記雨水排水路2に対する連結部は、該雨水排水路2からの被処理雨水3を前記流入空間30に所要に流入させ得るものである限り、計画水位よりも下側部位に設定されればよく、前記したように雨水排水路2の側壁部の下端側に連結するものには限られない。例えば、降雨量が多い場合において河川への流出を抑制するために雨水処理装置1が構築される場合は、雨水排水路2の下部よりも上側に位置させて流入管5が連結されることもある。 (15) The connecting portion of the inflow pipe 5 to the rainwater drainage channel 2 is lower than the planned water level as long as the treated rainwater 3 from the rainwater drainage channel 2 can flow into the inflow space 30 as required. What is necessary is just to set to a side part, and it is not restricted to what is connected with the lower end side of the side wall part of the rainwater drainage channel 2 as mentioned above. For example, when the rainwater treatment apparatus 1 is constructed in order to suppress the outflow to the river when there is a large amount of rainfall, the inflow pipe 5 may be connected to be positioned above the lower part of the rainwater drainage channel 2. is there.

(16)前記内筒体23に対する前記流出管10の連結は、図26に示すように、前記連結管112のストレートな先端部分270を、該流出管10を構成する管体の上流端側に形成したソケット部271に挿入して行なうこともできる。 (16) The connection of the outflow pipe 10 to the inner cylinder 23 is performed by connecting the straight tip portion 270 of the connection pipe 112 to the upstream end side of the pipe constituting the outflow pipe 10, as shown in FIG. It can also be performed by inserting it into the formed socket part 271.

又前記のように、前記連結管112を前記筒体76に連通状態に設けることの他、流出管10の上流端部分を該筒体76の側壁部110に直接的に連結して構成することもできる。   Further, as described above, the connecting pipe 112 is provided in communication with the cylindrical body 76, and the upstream end portion of the outflow pipe 10 is directly connected to the side wall portion 110 of the cylindrical body 76. You can also.

(17)前記のように構成された筒状濾過槽6に連結される流入管5は複数本とされることもあり、又、前記流出管10の本数も複数本とされることがある。 (17) There may be a plurality of inflow pipes 5 connected to the cylindrical filtration tank 6 configured as described above, and there may be a plurality of outflow pipes 10.

(18)前記地下浸透層12に存する前記管部分13は、該地下浸透層12の厚さ方向の中間部分を横断するように配設されてもよい。 (18) The tube portion 13 existing in the underground infiltration layer 12 may be disposed so as to cross an intermediate portion in the thickness direction of the underground infiltration layer 12.

(19)前記濾材7は、前記のようにメッシュ状の袋に収容されることの他、かかる袋に収容されないで用いられることもある。 (19) In addition to being accommodated in the mesh-shaped bag as described above, the filter medium 7 may be used without being accommodated in such a bag.

(20)図27に示す雨水処理装置1は、前記流出管10の前記下流管10cの全体が前記地下浸透層12に埋設されると共に下流端27が蓋体272で閉止されており、該流出管10に設けられた流出孔15から排出された処理雨水が該地下浸透層12に浸透するように構成されている。 (20) In the rainwater treatment apparatus 1 shown in FIG. 27, the entire downstream pipe 10c of the outflow pipe 10 is embedded in the underground infiltration layer 12 and the downstream end 27 is closed by a lid 272. The treated rainwater discharged from the outflow hole 15 provided in the pipe 10 is configured to permeate the underground infiltration layer 12.

(21)図28に示す雨水処理装置1は、前記流出管10の下流端273が河川に開放するように構成され、処理雨水は、前記のように地下浸透層12に排出されたり、雨水貯留槽11に流入したりすることなく、河川にのみ排出するように構成されている。又、流出管10を地下浸透層12に埋設することなくその下流端部分を雨水貯留槽11に直接的に連結し、前記筒状濾過槽6で濾過処理された処理雨水が該雨水貯留槽11に直接流入するようになし、該流入水を中水として利用可能とすることもできる。 (21) The rainwater treatment apparatus 1 shown in FIG. 28 is configured such that the downstream end 273 of the outflow pipe 10 is open to the river, and the treated rainwater is discharged to the underground permeation layer 12 as described above, or stored in the rainwater. It is configured to discharge only to the river without flowing into the tank 11. In addition, the downstream end portion of the outflow pipe 10 is directly connected to the rainwater storage tank 11 without being embedded in the underground infiltration layer 12, and the treated rainwater filtered in the cylindrical filtration tank 6 is the rainwater storage tank 11. The inflowing water can be used as middle water.

1 雨水処理装置
2 雨水排水路
3 被処理雨水
5 流入管
6 筒状濾過槽
7 濾材
9 処理雨水
10 流出管
11 雨水貯留槽
12 地下浸透層
15 流出孔
16 貯留水
17 排出部
19 上端開放部
20 外筒体
21 上端
22 下端
23 内筒体
25 下側部分
26 濾過槽本体部材
27 上部
29 継足し筒
30 流入空間
41 底版部材
62 流入管挿入孔
63 流出管挿通孔
73 上端
75 下端
76 筒体
77 下端側
79 濾材袋
80 濾材支持部
81 濾材支持部材
106 上部連結管部
111 側部連結部
117 台座装置
119 支柱部材
127 支持片
135 泥溜め部
139 ソケット部
140 ソケット部
152 側溝ブロック
181 浮上り防止部材
220 排水管
253 筒状ブロック
DESCRIPTION OF SYMBOLS 1 Rainwater treatment apparatus 2 Rainwater drainage channel 3 Treated rainwater 5 Inflow pipe 6 Cylindrical filtration tank 7 Filter medium 9 Treated rainwater 10 Outflow pipe 11 Rainwater storage tank 12 Underground permeation layer 15 Outflow hole 16 Reserved water 17 Discharge part 19 Upper end opening part 20 Outer cylinder 21 Upper end 22 Lower end 23 Inner cylinder 25 Lower portion 26 Filtration tank body member 27 Upper part 29 Additional cylinder 30 Inflow space 41 Bottom plate member 62 Inflow pipe insertion hole 63 Outflow pipe insertion hole 73 Upper end 75 Lower end 76 Cylindrical body 77 Lower end side 79 Filter medium bag 80 Filter medium support part 81 Filter medium support member 106 Upper connection pipe part 111 Side part connection part 117 Base device 119 Support member 127 Support piece 135 Mud reservoir part 139 Socket part 140 Socket part 152 Side groove block 181 Lifting prevention member 220 Drain pipe 253 Tubular block

Claims (6)

有底で上端開放部が閉蓋可能となされた外筒体と、該外筒体内に立設状態に納設され且つ上端が開放された内筒体との間をなす流入空間に、雨水の排水路からの被処理雨水が流入し、この被処理雨水が、該内筒体の下部側に設けられた取水部から該内筒体内に導入されるようになされると共に、該内筒体内で濾過処理された処理雨水が、該内筒体の側壁部に連結され且つ前記外筒体の側壁部を貫通する流出管を通して排出されるようになされた筒状濾過槽であって、
前記内筒体は、上端が開放され且つ前記内筒体の下側部分を構成する筒体を具え、該筒体の下部側に前記取水部が設けられると共に、該筒体の内部には、該取水部の上側に位置させて濾材が収容されるものとなされており、又、該筒体の側壁部には、前記流出管を該筒体の内部に連通状態に連結するための側部連結部が設けられており、該筒体の上部分には、前記内筒体の上側部分を構成する継足し筒の下部分を連通状態に連結してなり、
又、前記取水部を形成するための台座装置を具えており、該台座装置は、前記外筒体の底面で所要間隔を置いて立設された支柱ボルトの夫々を、前記内筒体の下端を支持する支持片に設けられた挿通孔に挿通させると共に該支持片を、該支柱ボルトに螺合されたナットによって上下から挾持してなり、前記ナットの螺合位置を変更することによって該支持片の高さ調整を行い得るようになされており、又、前記ナットと前記筒体の内周面又は外周面との当接による係合によって前記内筒体の水平方向での移動が阻止されていることを特徴とする筒状濾過槽。
In the inflow space between the bottomed outer cylinder whose upper end opening can be closed and the inner cylinder which is placed upright in the outer cylinder and whose upper end is opened, rainwater The treated rainwater from the drainage channel flows in, and this treated rainwater is introduced into the inner cylinder from a water intake provided at the lower side of the inner cylinder, The treated rainwater that has been filtered is connected to the side wall of the inner cylinder and is discharged through an outflow pipe that penetrates the side wall of the outer cylinder,
The inner cylinder includes a cylinder whose upper end is opened and forms a lower portion of the inner cylinder, the water intake portion is provided on the lower side of the cylinder, and the interior of the cylinder includes: The filter medium is accommodated in the upper side of the water intake portion, and a side portion for connecting the outflow pipe to the inside of the cylindrical body in communication with the side wall portion of the cylindrical body A connecting portion is provided, and the upper part of the cylindrical body is connected to the lower part of the additional cylinder constituting the upper part of the inner cylindrical body in a communicating state;
In addition, a pedestal device for forming the water intake portion is provided, and the pedestal device is configured so that each of the support bolts erected at a predetermined interval on the bottom surface of the outer cylindrical body is connected to the lower end of the inner cylindrical body. The support piece is inserted through an insertion hole provided in the support piece and supported by the nut bolted to the support bolt from above and below, and the support position is changed by changing the screwing position of the nut. The height of the piece can be adjusted, and the engagement of the nut with the inner peripheral surface or the outer peripheral surface of the cylindrical body prevents the inner cylindrical body from moving in the horizontal direction. A cylindrical filtration tank characterized by that.
雨水排水路と、筒状濾過槽とを具えており、該雨水排水路から流入した被処理雨水が筒状濾過槽外に、重力の作用で自然流下により排出されるように構成された雨水処理装置であって、
前記筒状濾過槽は、有底で上端開放部が閉蓋可能となされた外筒体内に、上端が開放された内筒体が立設状態に納設され、該外筒体と該内筒体との間に流入空間が形成されており、該内筒体は、前記外筒体の底面で立設されており、該内筒体の下部側に、該流入空間に連通する取水部が設けられており、又、該内筒体内には、該取水部の上側に位置させて濾材が収容されており、
前記内筒体の側壁部には、前記外筒体の側壁部を貫通する流出管の上流開口端が前記濾材の上側に位置させて連結されており、又、前記雨水排水路の側壁部と前記外筒体の側壁部とは流入管で連結されており、該流入管の下流端の管底は、前記流出管の上流端の管底よりも上に位置されており、
前記内筒体の上端は、前記流入管から流入された被処理雨水が越流しない高さに設定され、或いは、該内筒体の上端が閉蓋可能となされており、
又、前記内筒体は、その下側部分をなす筒状濾過槽構成用の濾過槽本体部材を具えており、該濾過槽本体部材は、上端が開放された筒体を具え、該筒体の下部側に前記取水部が設けられると共に、該筒体の内部には、該取水部の上側に位置させて濾材が収容されるものとなされており、又、該筒体の側壁部には、前記流出管を該筒体の内部に連通状態に連結するための側部連結部が設けられており、該筒体の上部分には、前記内筒体の上側部分を構成する継足し筒の下部分を連通状態に連結するための上部連結管部が設けられており、
又、前記取水部を形成するための台座装置を具えており、該台座装置は、前記外筒体の底面で所要間隔を置いて立設された支柱ボルトの夫々を、前記内筒体の下端を支持する支持片に設けられた挿通孔に挿通させると共に該支持片を、該支柱ボルトに螺合されたナットによって上下から挾持してなり、前記ナットの螺合位置を変更することによって該支持片の高さ調整を行い得るようになされており、又、前記ナットと前記筒体の内周面又は外周面との当接による係合によって前記内筒体の水平方向での移動が阻止されていることを特徴とする雨水処理装置。
A rainwater treatment system comprising a rainwater drainage channel and a cylindrical filtration tank, and the treated rainwater flowing in from the rainwater drainage channel is discharged outside the cylindrical filtration tank by natural flow under the action of gravity. A device,
The cylindrical filtration tank has a bottomed outer cylinder body whose upper end opening can be closed, and an inner cylinder body whose upper end is opened is placed in an upright state. The outer cylinder body and the inner cylinder body An inflow space is formed between the inner cylinder, the inner cylinder is erected on the bottom surface of the outer cylinder, and a water intake portion communicating with the inflow space is provided on a lower side of the inner cylinder. A filter medium is housed in the inner cylinder, located above the water intake,
An upstream opening end of an outflow pipe penetrating the side wall portion of the outer cylinder body is connected to the side wall portion of the inner cylinder body so as to be positioned above the filter medium, and the side wall portion of the rainwater drainage channel The outer cylindrical body is connected to the side wall portion by an inflow pipe, and the bottom of the downstream end of the inflow pipe is located above the bottom of the upstream end of the outflow pipe,
The upper end of the inner cylinder is set to a height at which the treated rainwater flowing in from the inflow pipe does not overflow, or the upper end of the inner cylinder can be closed.
The inner cylinder includes a filter tank main body member for forming a cylindrical filter tank that forms a lower portion of the inner cylinder, and the filter tank main body member includes a cylinder having an open upper end. The intake portion is provided on the lower side of the cylinder, and the filter medium is accommodated inside the cylinder so as to be positioned on the upper side of the intake section. A side connecting portion for connecting the outflow pipe to the inside of the cylinder in a communicating state is provided, and an additional cylinder constituting an upper portion of the inner cylinder is provided on the upper portion of the cylinder An upper connecting pipe part is provided for connecting the lower part in a communicating state,
In addition, a pedestal device for forming the water intake portion is provided, and the pedestal device is configured so that each of the support bolts erected at a predetermined interval on the bottom surface of the outer cylindrical body is connected to the lower end of the inner cylindrical body. The support piece is inserted through an insertion hole provided in the support piece and supported by the nut bolted to the support bolt from above and below, and the support position is changed by changing the screwing position of the nut. The height of the piece can be adjusted, and the engagement of the nut with the inner peripheral surface or the outer peripheral surface of the cylindrical body prevents the inner cylindrical body from moving in the horizontal direction. A rainwater treatment apparatus characterized by the above.
雨水排水路と、筒状濾過槽と、雨水を地下浸透させる地下浸透層とを具えており、前記雨水排水路から流入した被処理雨水が筒状濾過槽外に、重力の作用で自然流下により排出されるように構成された雨水処理装置であって、
前記筒状濾過槽は、有底で上端開放部が閉蓋可能となされた外筒体内に、上端が開放された内筒体が立設状態に納設され、該外筒体と該内筒体との間に流入空間が形成されており、該内筒体は、前記外筒体の底面で立設されており、該内筒体の下部側に、該流入空間に連通する取水部が設けられており、又、該内筒体内には、該取水部の上側に位置させて濾材が収容されており、
前記内筒体の側壁部には、前記外筒体の側壁部を貫通する流出管の上流開口端が前記濾材の上側に位置させて連結されており、又、前記雨水排水路の側壁部と前記外筒体の側壁部とは流入管で連結されており、該流入管の下流端の管底は、前記流出管の上流端の管底よりも上に位置されており、
前記内筒体の上端は、前記流入管から流入された被処理雨水が越流しない高さに設定され、或いは、該内筒体の上端が閉蓋可能となされており、
又、前記内筒体は、その下側部分をなす筒状濾過槽構成用の濾過槽本体部材を具えており、該濾過槽本体部材は、上下端が開放された筒体を具え、該筒体の下部側に前記取水部が設けられると共に、該筒体の内部には、該取水部の上側に位置させて濾材が収容されるものとなされており、又、該筒体の側壁部には、前記流出管を該筒体の内部に連通状態に連結するための側部連結部が設けられており、該筒体の上部分には、前記内筒体の上側部分を構成する継足し筒の下部分を連通状態に連結するための上部連結管部が設けられており、
又、前記取水部を形成するための台座装置を具えており、該台座装置は、前記外筒体の底面で所要間隔を置いて立設された支柱ボルトの夫々を、前記内筒体の下端を支持する支持片に設けられた挿通孔に挿通させると共に該支持片を、該支柱ボルトに螺合されたナットによって上下から挾持してなり、前記ナットの螺合位置を変更することによって該支持片の高さ調整を行い得るようになされており、又、前記ナットと前記筒体の内周面又は外周面との当接による係合によって前記内筒体の水平方向での移動が阻止されており、
又、前記流出管の前記地下浸透層に存する部分には、該地下浸透層に前記処理雨水を排出させる流出孔が分散状態に設けられていることを特徴とする雨水処理装置。
It has a rainwater drainage channel, a cylindrical filtration tank, and an underground infiltration layer that allows rainwater to penetrate underground, and the treated rainwater that has flowed in from the rainwater drainage channel flows naturally out of the cylindrical filtration tank by the action of gravity. A rainwater treatment device configured to be discharged,
The cylindrical filtration tank has a bottomed outer cylinder body whose upper end opening can be closed, and an inner cylinder body whose upper end is opened is placed in an upright state. The outer cylinder body and the inner cylinder body An inflow space is formed between the inner cylinder, the inner cylinder is erected on the bottom surface of the outer cylinder, and a water intake portion communicating with the inflow space is provided on a lower side of the inner cylinder. A filter medium is housed in the inner cylinder, located above the water intake,
An upstream opening end of an outflow pipe penetrating the side wall portion of the outer cylinder body is connected to the side wall portion of the inner cylinder body so as to be positioned above the filter medium, and the side wall portion of the rainwater drainage channel The outer cylindrical body is connected to the side wall portion by an inflow pipe, and the bottom of the downstream end of the inflow pipe is located above the bottom of the upstream end of the outflow pipe,
The upper end of the inner cylinder is set to a height at which the treated rainwater flowing in from the inflow pipe does not overflow, or the upper end of the inner cylinder can be closed.
The inner cylinder includes a filter tank body member for forming a cylindrical filter tank that forms a lower portion of the inner cylinder, and the filter tank body member includes a cylinder whose upper and lower ends are open. The water intake section is provided on the lower side of the body, and the filter medium is accommodated inside the cylindrical body so as to be positioned on the upper side of the water intake section. Is provided with a side connecting portion for connecting the outflow pipe to the inside of the cylinder in a communicating state, and an upper portion of the cylinder is connected to an upper portion of the inner cylinder. An upper connecting pipe part is provided for connecting the lower part of the tube in a communicating state,
In addition, a pedestal device for forming the water intake portion is provided, and the pedestal device is configured so that each of the support bolts erected at a predetermined interval on the bottom surface of the outer cylindrical body is connected to the lower end of the inner cylindrical body. The support piece is inserted through an insertion hole provided in the support piece and supported by the nut bolted to the support bolt from above and below, and the support position is changed by changing the screwing position of the nut. The height of the piece can be adjusted, and the engagement of the nut with the inner peripheral surface or the outer peripheral surface of the cylindrical body prevents the inner cylindrical body from moving in the horizontal direction. And
The rainwater treatment apparatus is characterized in that an outflow hole for discharging the treated rainwater to the underground infiltration layer is provided in a dispersed state in a portion of the outflow pipe existing in the underground infiltration layer.
雨水排水路と、筒状濾過槽と、雨水を地下浸透させる地下浸透層と、雨水貯留槽とを具えており、前記雨水排水路から流入した被処理雨水が、該雨水貯留槽に、重力の作用で自然流下により流入されるように構成された雨水処理装置であって、
前記筒状濾過槽は、有底で上端開放部が閉蓋可能となされた外筒体内に、上端が開放された内筒体が立設状態に納設され、該外筒体と該内筒体との間に流入空間が形成されており、該内筒体は、前記外筒体の底面で立設されており、該内筒体の下部側に、該流入空間に連通する取水部が設けられており、又、該内筒体内には、該取水部の上側に位置させて濾材が収容されており、
前記内筒体の側壁部には、前記外筒体の側壁部を貫通する流出管の上流開口端が前記濾材の上側に位置させて連結されており、又、前記雨水排水路の側壁部と前記外筒体の側壁部とは流入管で連結されており、該流入管の下流端の管底は、前記流出管の上流端の管底よりも上に位置されており、
前記内筒体の上端は、前記流入管から流入した被処理雨水が越流しない高さに設定され、或いは、該内筒体の上端が閉蓋可能となされており、
又、前記内筒体は、その下側部分をなす筒状濾過槽構成用の濾過槽本体部材を具えており、該濾過槽本体部材は、上端が開放された筒体を具え、該筒体の下部側に前記取水部が設けられると共に、該筒体の内部には、該取水部の上側に位置させて濾材が収容されるものとなされており、又、該筒体の側壁部には、前記流出管を該筒体の内部に連通状態に連結するための側部連結部が設けられており、該筒体の上部分には、前記内筒体の上側部分を構成する継足し筒の下部分を連通状態に連結するための上部連結管部が設けられており、
又、前記流出管は、前記地下浸透層を横断しており、該横断部分には、該地下浸透層に前記処理雨水を排出させる流出孔が分散状態に設けられており、該流出管の下流部が前記雨水貯留槽の上部に連結されており、
又、該雨水貯留槽には、貯留水を排出するための排出部が設けられていることを特徴とする雨水処理装置。
A rainwater drainage channel, a cylindrical filtration tank, an underground infiltration layer for allowing rainwater to permeate underground, and a rainwater storage tank. A storm water treatment apparatus configured to flow in by natural flow under action,
The cylindrical filtration tank has a bottomed outer cylinder body whose upper end opening can be closed, and an inner cylinder body whose upper end is opened is placed in an upright state. The outer cylinder body and the inner cylinder body An inflow space is formed between the inner cylinder, the inner cylinder is erected on the bottom surface of the outer cylinder, and a water intake portion communicating with the inflow space is provided on a lower side of the inner cylinder. A filter medium is housed in the inner cylinder, located above the water intake,
An upstream opening end of an outflow pipe penetrating the side wall portion of the outer cylinder body is connected to the side wall portion of the inner cylinder body so as to be positioned above the filter medium, and the side wall portion of the rainwater drainage channel The outer cylindrical body is connected to the side wall portion by an inflow pipe, and the bottom of the downstream end of the inflow pipe is located above the bottom of the upstream end of the outflow pipe,
The upper end of the inner cylinder is set to a height at which the treated rainwater flowing from the inflow pipe does not overflow, or the upper end of the inner cylinder can be closed.
The inner cylinder includes a filter tank main body member for forming a cylindrical filter tank that forms a lower portion of the inner cylinder, and the filter tank main body member includes a cylinder having an open upper end. The intake portion is provided on the lower side of the cylinder, and the filter medium is accommodated inside the cylinder so as to be positioned on the upper side of the intake section. A side connecting portion for connecting the outflow pipe to the inside of the cylinder in a communicating state is provided, and an additional cylinder constituting an upper portion of the inner cylinder is provided on the upper portion of the cylinder An upper connecting pipe part is provided for connecting the lower part in a communicating state,
In addition, the outflow pipe crosses the underground infiltration layer, and an outflow hole for discharging the treated rainwater to the underground infiltration layer is provided in a distributed state in the crossing portion, and the downstream of the outflow pipe Is connected to the upper part of the rainwater storage tank,
The rainwater treatment apparatus is characterized in that the rainwater storage tank is provided with a discharge portion for discharging the stored water.
前記外筒体は、基礎上に載置された底版部材上で、上下端が開放した所要高さの筒状ブロックを、外筒体の必要な高さを考慮して所要段数積重して構成されていることを特徴とする請求項3又は4記載の雨水処理装置。   The outer cylinder is formed by stacking the required height of the outer cylinder on the bottom plate member placed on the foundation, with the required height of the outer cylinder being stacked. The rainwater treatment apparatus according to claim 3 or 4, wherein the rainwater treatment apparatus is configured. 前記流入管を前記雨水排水路の側壁部の下端側に連結したことを特徴とする請求項3、4又は5記載の雨水処理装置。   The rainwater treatment apparatus according to claim 3, wherein the inflow pipe is connected to a lower end side of a side wall portion of the rainwater drainage channel.
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