JP4099574B2

JP4099574B2 - Drainage equipment

Info

Publication number: JP4099574B2
Application number: JP2002206324A
Authority: JP
Inventors: 伊藤　　嘉浩; 貴之大西
Original assignee: 丸一株式会社
Priority date: 2002-07-15
Filing date: 2002-07-15
Publication date: 2008-06-11
Anticipated expiration: 2022-07-15
Also published as: JP2004044318A

Description

【０００１】
【発明の属する技術分野】
本発明は、排水機器と接続した排水装置に関する。
【０００２】
【従来の技術】
従来より、洗面台や流し台、浴槽、もしくはそれらに用いられる防水パンなどの排水機器には、それら排水機器の排水を下水等に排出するため排水装置が用いられている。これら排水装置の中には、その内部に形成される排水流路内に排水が必ず溜まる部分を設けて、下水側からの臭気や害虫類が屋内側に逆流することを防止する機能を備えた排水装置が知られている。この排水流路中の排水が溜まる部分は封水部と呼ばれ、この封水部を備えることで、排水装置には上記した臭気や害虫類の逆流を防ぐ、トラップ機能と呼ばれる機能を得ることができる。
【０００３】
図８に示した従来の排水装置は、以下に記載した各部材より構成されて成る。排水装置本体は、有底筒状の防臭椀部と、上記防臭椀部から溢れた排水が流れる排水流路を形成する、防臭椀部の開口の上方に、雌螺子を備えた開口部を備えたケーシング壁と、上記防臭椀部の側面に設けられて、後記する排水エルボの排出口と接続され、排水エルボからの排水を防臭椀部内に流入させる枝管部と、ケーシング壁の側面に設けられ、排水流路内の排水を排出する排出口と、から成る。フランジ部材は、上下に開口した円筒状の部材であって、上端には外側面方向に突出した鍔部を備え、またその側面には上記開口部の雌螺子と螺合する雄螺子を設けてなる。
防臭筒は、上下に開口した筒体であって、上端はフランジ部材を介し、ケーシング壁の開口部と水密的に接続して排水口を形成し、下端は防臭椀部内に配置されて防臭椀部と共に封水部を形成する。
【０００４】
上記の排水装置は、浴室に利用される防水パンと、浴槽及び防水パンからの排水を下水側に排出する排水配管に用いられる。以下に、上記防水パンと、これらの排水を行う排水配管を、図面を参照しつつ説明する。
防水パンは、使用者が身体を洗う等する洗い場部と、浴槽を載置する浴槽載置部と、から成り、洗い場部には、段落０００３に記載した排水装置を取り付ける取付孔が設けられている。
排水配管は、パイプ管などの配管部材の組み合わせから成る、浴槽及び浴槽載置部と排水装置の枝管部とを接続する部材であって、浴槽及び浴槽載置部上の排水を集水し、接続先である排水装置の枝管部を介し、排水装置の防臭椀部内に排水を流入させる枝管部側配管部と、排水装置の排出口から排水を下水側に排出する排出口側配管部と、から構成される。
【０００５】
上記したような排水装置と排水配管は、以下のようにして、排水機器である浴槽及び防水パンに施工される。
まず排水装置本体の開口部と、フランジ部材の鍔部とで、洗い場部側の取付部の開口周縁を挟持しつつ、雄螺子と雌螺子を螺合させ、排水装置本体を洗い場部に取り付け固定する。
次に、パイプ管などの配管部材を組み合わせ、枝管部側配管部として浴槽及び浴槽載置部と排水装置の枝管部とを接続する。
その後、排水装置本体内部に防臭椀部を取り付け、更にフランジ部材を介して開口部に防臭筒を取り付けして、排水装置と排水配管の、浴槽及び防水パンへの施工が完了する。
【０００６】
上記のように配管された、排水装置を含む排水配管において、洗い場部から排水が発生した場合、排水は、排水口から、防臭筒部材、防臭椀部を介して最終的に排出口から下水側配管へと排出される。
【０００７】
また、浴槽及び浴槽載置部から排水が発生した場合、排水は枝管部側排水配管と枝管部を介して、防臭椀部に流入し、最終的に排出口から下水側配管へと排出される。
【０００８】
【発明が解決しようとする課題】
しかし、上記のような構造の排水装置には以下のような問題があった。
排水機器の使用時にあって、例えば浴槽から排水を行った場合、排水は浴槽内から、枝管部、封水部、の順に流れ、最後に排出口より下水側に排出されるのが正しい流れ方であるが、排出口の排出能力を超える程に大量の排水があった場合、枝管部から排出口に至る排水経路の途中に封水部があるため、排水が、排出口ではなく封水部から排水装置の排水口に溢れ出る、逆流と呼ばれる現象を生じることがあった。また同様に、洗い場部から排水を行った場合にも、排出口の排出能力を超える程に大量の排水があった場合、枝管部を介して封水部から枝管部側配管部を介し、浴槽載置部上や浴槽内に排水が溢れ出る場合があった。
本発明は上記のような課題を解決するために研究開発されたものであって、排水口や枝管部など、排水の流入先を複数そなえた排水装置において、それらの間での逆流を防ぐ排水装置を提供するものである。
【００１１】
請求項１に記載の排水装置は、封水部を備えることでトラップ機能を付加した排水装置において、有底筒状の防臭椀部（２）と、上記防臭椀部（２）から溢れた排水が流れる排水流路を形成する、防臭椀部（２）の開口の上方に開口部（３）を備えたケーシング壁（１）と、上下に開口した筒体であって、上端はケーシング壁（１）の開口部（３）と水密的に接続して排水口（４）を形成し、下端は防臭椀部（２）内に配置されて防臭椀部（２）と共に第一封水部（５）を形成する防臭筒（７）と、ケーシング壁（１）に設けられた、他の排水装置からの排水が流入する枝管部（８）と、ケーシング壁（１）の内面に沿って上下方向に筒状に設けられた、下端部分が該枝管部（８）に連通すると共に上端部分に上記排水流路に排水を排出するとともに排水の排出を防止する逆流防止装置を備えた、第一封水部（５）から独立した第二封水部（６）と、ケーシング壁（１）の側面に設けられた、排水流路内の排水を排出する排水口（１０）と、から構成したことを特徴とする排水装置である。
【００１４】
【発明の実施の形態】
本発明の第一実施例を、図面を参照しつつ説明する。
図１乃至図２に示した第一実施例の排水装置は、以下に記載した各部材より構成されて成る。
排水装置本体は、有底筒状の防臭椀部（２）と、上記防臭椀部（２）から溢れた排水が流れる排水流路を形成する、防臭椀部（２）の開口の上方に、雌螺子を備えた開口部（３）を備えたケーシング壁（１）と、上記防臭椀部（２）の側面に設けられて、後記する排水エルボ（９）の排出口（１０）と接続され、排水エルボ（９）からの排水を防臭椀部（２）内に流入させる枝管部（８）と、ケーシング壁（１）の内面に沿って上下方向に筒状に設けられた、下端部分が該枝管部（８）に連通すると共に上端側が上記排水流路に排水を排出する吐出部分を備えた、後述する防臭椀部（２）によって形成される第一封水部（５）から独立した封水部である第二封水部（６）と、該第二封水部（６）の吐出部分に設けた、、排水流路から第二封水部（６）への流れを防止する逆流防止装置である逆流防止弁（１１）と、ケーシング壁（１）の側面に設けられ、排水流路内の排水を排出する排出口（１０）と、から成る。
フランジ部材（１２）及び防臭筒（７）は上記段落０００３に記載された各部材と同様に構成されて成る。
【００１５】
上記の排水装置は、上記段落０００４に記載された浴槽、防水パン、及び排水配管等の各部材に用いられる。
【００１６】
上記したような排水装置と排水配管は、以下のようにして、排水機器である浴槽及び防水パンに施工される。
まず排水装置本体の開口部（３）と、フランジ部材（１２）の鍔部（１３）とで、洗い場部（１４）側の取付部の開口周縁を挟持しつつ、雄螺子と雌螺子を螺合させ、排水装置本体を洗い場部（１４）に取り付け固定する。
次に、パイプ管などの配管部材を組み合わせ、枝管部側配管部として浴槽及び浴槽載置部（１５）と排水装置の枝管部（８）とを接続する。
その後、排水装置本体内部に防臭椀部（２）を取り付け、更にフランジ部材（１２）を介して開口部（３）に防臭筒（７）を取り付けして、防臭椀部（２）と防臭筒（７）とで第一封水部（５）を形成し、排水装置と排水配管の、浴槽及び防水パンへの施工が完了する。
【００１７】
上記のように配管された、排水装置を含む排水配管において、洗い場部（１４）から排水が発生した場合、排水は、排水口（４）から、防臭筒（７）と防臭椀部（２）から成る第一封水部（５）を介して、最終的に排出口（１０）から排水口流路（Ｗ１）を通り、下水側配管へと排出される。
【００１８】
また、浴槽及び浴槽載置部（１５）から排水が発生した場合、排水は枝管部側排水配管と枝管部を介して、第二封水部（６）を通過し、更に排水流路を通過して最終的に排出口（１０）から枝管流路（Ｗ２）を通り、下水側配管へと排出される。
【００１９】
上記実施例においては、排水装置に封水部を複数備えると共に、該複数の封水部を、各封水部からの排水が並列に排水されるように配設している（ここで言う「各封水部からの排水が並列に排水される」とは、個々の封水部からの排水が、他の封水部を通過しなくても下水側に排出できるような排水の配設法を意味する）。
従来例のように、枝管部側配管からの排水と排水口（５）からの排水を、一つの封水部で兼用して処理している場合、枝管部側配管と排水口のいずれか一方から大量の排水があると、封水部を介して容易に他方に逆流を生じるが、上記実施例のように、該複数の封水部を、各封水部からの排水が並列に排水されるように配設していると、一方の封水部の排出口から他方の封水部の排出口（１０）に移動するまでの距離が長くなる上、封水部内は排水が上下に移動する必要があり、上記従来例と比べて逆流が発生するのに必要な水量（又は水量によって生じる水圧）がはるかに増大し、逆流が殆ど起こらなくなる。特に上記実施例においては、第二封水部（６）の吐出部分に逆流防止装置である逆流防止弁が備えられているため、排水口から大量の排水があっても、枝管部側、即ち浴槽載置部（１５）や浴槽側に逆流が発生することはない。
【００２０】
また、上記実施例においては、上記複数の封水部からの排水が流れる排水流路を、一つのケーシング体であるケーシング壁（１）内に形成したことで、排水装置全体をコンパクトに構成すると共に、施工に必要な部材や施工方法、及び使用方法を従来のトラップ機能付き排水装置と同様とすることができ、新規に必要となる部材の点数を減らすことで、製品を安価なものとし、また部材管理を容易なものとしている。また施工方法や使用方法も従来の方法と殆ど変わらない為、施工者や使用者に何らかの教育・訓練を施す必要が無い。
【００２１】
本発明の実施例は上記のようであるが、本発明は上記実施例に限定されるものではなく、発明の要旨を変更しない範囲で、その構成を自在に変更することができる。
例えば上記実施例においては、第二封水部（６）をケーシング壁（１）と一体に構成して成るが、図３乃至図５に示した実施例のように、第二封水部（６）をケーシング壁（１）等から着脱自在に構成しても構わない。
このようにすることで、第二封水部（７）内に生じたごみ詰まりなどを容易に解消することができ、また清掃時においても容易に清掃を行うことができる。
【００２２】
また上記実施例においては、逆流防止装置である逆流防止弁（１１）を第二封水部（６）と一体としているが、図６に示した実施例のように、逆流防止弁（１１）を第二封水部（６）とは別の部材として第二封水部（６）から着脱自在となるように構成しても構わない。逆流防止弁（１１）等の逆流防止装置は、通常可動部分を含むため、破損や故障が発生し易いが、当該部材を着脱自在とすることで、部材の交換を可能とし、部材交換によって簡単に機能回復を行うことができる。
【００２３】
また上記実施例においては、逆流防止装置をいずれもヒンジ式の逆流防止弁（１）としているが、図７に示した実施例のように、水とほぼ同一にして多少比重の小さい軟質の素材を利用したフロート弁（１６）によって逆流防止装置を構成しても、本発明の効果を得ることができる。
【００２４】
本発明は、上記のように構成されたため、以下のような優れた効果を奏する。
１．請求項１に記載の排水装置においては、排水装置に封水部を複数備えると共に、該複数の封水部を、各封水部からの排水が並列に排水されるように配設したことで、従来の排水装置に比較して逆流の発生を減少させるとともに、特に少なくとも一つ以上の封水部の吐出部分に、排水の逆流を防止する逆流防止装置を備えたことで、逆流防止装置を備えた箇所への逆流を防止することができる。
２．請求項１に記載の排水装置においては、複数の封水部からの排水が流れる排水流路を、一つのケーシング体であるケーシング壁内に形成することで、排水流路それぞれに逆流防止装置を施工する手間を省き、排水装置全体をコンパクトに構成すると共に、施工に必要な部材や施工方法、及び使用方法を従来のトラップ機能付き排水装置と同様とすることができ、新規に必要となる部材の点数を減らすことで、製品を安価なものとし、また部材管理を容易なものとすることができる。また施工方法や使用方法も従来の方法と殆ど変わらない為、施工者や使用者に何らかの教育・訓練を施す必要が無い。
３．請求項１に記載の排水装置は、封水部を、開口部側と枝管側の二箇所に設け、第二封水部の吐出部分に逆流防止装置を設けたことで、枝管側への逆流を防止することができる。
【図面の簡単な説明】
【図１】本発明の第一実施例における、排水装置を含む排水配管の、（イ）断面図、（ロ）Ａ−Ａ’矢視図、である。
【図２】本発明の第一実施例における排水の流れ方を示す、排水装置を含む排水配管の、（イ）断面図、（ロ）Ｂ−Ｂ’矢視図、である。
【図３】本発明の、第二封水部がケーシング壁より着脱自在とした排水装置を示す実施例である。
【図４】図３の実施例における、排水装置のＣ−Ｃ’矢視図である。
【図５】図３の実施例における、排水装置の部品構成を示す断面図である。
【図６】本発明の、逆流防止弁を第二封水部より着脱自在とした実施例の断面図である
【図７】本発明の、逆流防止装置をフロート弁とした実施例の断面図である
【図８】従来の排水装置を示す断面図である。
【符号の説明】
１ケーシング壁２防臭椀部
３開口部４排水口
５第一封水部６第二封水部
７防臭筒８枝管部
９排水エルボ１０排出口
１１逆流防止弁１２フランジ部材
１３鍔部１４洗い場部
１５浴槽載置部１６フロート弁
Ｗ１排水口流路Ｗ２枝管流路[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drainage device connected to drainage equipment.
[0002]
[Prior art]
Conventionally, a drainage device is used for drainage equipment such as a wash basin, a sink, a bathtub, or a waterproof pan used for them in order to discharge the drainage of the drainage equipment into sewage or the like. Some of these drainage devices have a function to prevent odors and pests from the sewage side from flowing back to the indoor side by providing a part where the drainage always accumulates in the drainage channel formed inside. Drainage devices are known. The portion of the drainage channel where the wastewater accumulates is called a sealed portion, and by providing this sealed portion, the drainage device has a function called a trap function that prevents backflow of the above-mentioned odors and pests. Can do.
[0003]
The conventional drainage device shown in FIG. 8 is constituted by each member described below. The drainage device main body includes a bottomed cylindrical deodorizing gutter part and an opening provided with a female screw above the opening of the deodorizing gutter part that forms a drainage channel through which drainage overflowing from the deodorizing gutter part flows. A casing wall, a branch pipe portion provided on a side surface of the deodorizing jar portion, connected to a drainage elbow outlet described later, and allowing drainage from the drainage elbow to flow into the odor prevention jar portion, and provided on a side surface of the casing wall. And a discharge port for discharging the wastewater in the drainage flow path. The flange member is a cylindrical member that opens up and down, and has a flange that protrudes toward the outer surface at the upper end, and a male screw that engages with the female screw of the opening on the side surface. Become.
The deodorizing cylinder is a cylindrical body that is opened up and down, and the upper end is connected to the opening of the casing wall in a watertight manner through a flange member to form a drainage outlet, and the lower end is disposed in the deodorizing gutter part, A sealed part is formed together with the part.
[0004]
Said drainage apparatus is used for the waterproofing pan used for a bathroom, and the drainage piping which discharges the drainage from a bathtub and a waterproofing pan to the sewer side. Hereinafter, the waterproof pan and drainage pipes for draining these will be described with reference to the drawings.
The waterproof pan is composed of a washing section where a user washes the body and the like, and a bathtub placing section where the bathtub is placed, and the washing place is provided with a mounting hole for attaching the drainage device described in paragraph 0003. Yes.
The drainage pipe is a member that connects the bathtub and the bathtub mounting part and the branch pipe part of the drainage device, which is a combination of piping members such as pipe pipes, and collects drainage on the bathtub and the bathtub mounting part. , A branch pipe side piping section that allows drainage to flow into the deodorizing gutter section of the drainage apparatus through the branch pipe section of the drainage apparatus that is the connection destination, and an outlet side piping that discharges the drainage from the drainage apparatus outlet to the sewage side Part.
[0005]
The drainage device and drainage piping as described above are applied to the bathtub and waterproof pan, which are drainage devices, as follows.
First, the male screw and female screw are screwed together with the opening of the drainage device body and the flange part of the flange member holding the opening periphery of the attachment part, and the drainage device body is attached and fixed to the washing field part. To do.
Next, a pipe member such as a pipe pipe is combined, and the bathtub and the bathtub mounting part and the branch pipe part of the drainage device are connected as the branch pipe part side pipe part.
Thereafter, the deodorizing gutter portion is attached to the inside of the drainage device main body, and the deodorizing cylinder is further attached to the opening via the flange member, so that the construction of the drainage device and the drainage pipe on the bathtub and the waterproof pan is completed.
[0006]
In the drainage pipe including the drainage device piped as described above, when drainage occurs from the washing area, the drainage is finally performed from the drainage port, through the deodorizing cylinder member and the deodorization gutter part, and finally from the discharge port to the sewage side. It is discharged into the piping.
[0007]
In addition, when wastewater is generated from the bathtub and the bathtub mounting part, the wastewater flows into the deodorization gutter part through the branch pipe side drainage pipe and the branch pipe part, and is finally discharged from the discharge port to the sewage side pipe. Is done.
[0008]
[Problems to be solved by the invention]
However, the drainage device having the above structure has the following problems.
When drainage equipment is in use, for example, when draining from a bathtub, the drainage flows from the bathtub in the order of the branch pipe section and the sealing section, and is finally discharged from the outlet to the sewage side. However, if there is a large amount of drainage that exceeds the discharge capacity of the discharge port, there is a seal part in the middle of the drainage route from the branch pipe to the discharge port. A phenomenon called backflow that overflowed from the water part to the drain outlet of the drainage device sometimes occurred. Similarly, even when draining from the washing area, if there is a large amount of drainage that exceeds the discharge capacity of the discharge port, the water is passed through the branch pipe part and the branch pipe part side pipe part. In some cases, drainage overflows on the bathtub mounting part or in the bathtub.
The present invention has been researched and developed to solve the above-described problems, and in a drainage device having a plurality of drainage inflow destinations such as drain outlets and branch pipes, backflow between them is prevented. A drainage device is provided.
[0011]
The drainage device according to claim 1 is a drainage device provided with a sealing part to add a trap function, and drainage overflowing from the bottomed cylindrical deodorant bottle part (2) and the deodorant bottle part (2). A casing wall (1) provided with an opening (3) above the opening of the deodorizing gutter part (2), and a cylindrical body opened up and down, the upper end of which is a casing wall ( 1) is connected to the opening (3) in a watertight manner to form a drainage port (4), and the lower end is disposed in the deodorizing gutter part (2), together with the deodorized gutter part (2), the first sealed part ( A deodorizing cylinder (7) forming 5), a branch pipe portion (8) provided in the casing wall (1) into which drainage from another drainage device flows, and an inner surface of the casing wall (1) provided in the vertical direction in a cylindrical shape, the lower end portion for discharging waste water into the drain passage at an upper end portion communicated with the the branches pipe portion (8) Together with the backflow prevention device for preventing the discharge of wastewater, the second seal water portion which is independent from the first seal water unit (5) and (6), provided on the side surface of the Ke pacing wall (1), the water discharge flow A drainage device characterized by comprising a drain outlet (10) for discharging drainage water in the road.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described with reference to the drawings.
The drainage device of the first embodiment shown in FIGS. 1 and 2 is constituted by the members described below.
The drainage device main body has a bottomed cylindrical deodorizing jar part (2) and an opening of the deodorizing jar part (2) that forms a drainage channel through which drainage overflowing from the deodorant jar part (2) flows. A casing wall (1) having an opening (3) provided with a female screw and a side wall of the deodorizing gutter (2) are connected to a discharge port (10) of a drainage elbow (9) described later. The lower end portion provided in a cylindrical shape in the vertical direction along the inner surface of the casing wall (1) and the branch pipe portion (8) for allowing the drainage from the drainage elbow (9) to flow into the deodorization gutter (2) Is connected to the branch pipe part (8) and the upper end side is provided with a discharge part for discharging the drainage into the drainage flow path, from a first water sealing part (5) formed by a deodorizing gutter part (2) described later. The second sealed water from the drainage channel provided at the second sealed water portion (6) which is an independent sealed water portion and the discharge portion of the second sealed water portion (6) (6) from a backflow prevention valve (11) which is a backflow prevention device for preventing flow to and a discharge port (10) which is provided on a side surface of the casing wall (1) and discharges wastewater in the drainage flow path. Become.
The flange member (12) and the deodorizing cylinder (7) are configured in the same manner as the members described in paragraph 0003 above.
[0015]
Said drainage apparatus is used for each member, such as the bathtub described in the said paragraph 0004, a waterproof pan, and drainage piping.
[0016]
The drainage device and drainage piping as described above are applied to the bathtub and waterproof pan, which are drainage devices, as follows.
First, the male screw and the female screw are screwed while holding the opening periphery of the attachment portion on the washing place (14) side between the opening (3) of the drainage device main body and the flange (13) of the flange member (12). The drainage device main body is attached and fixed to the washing place (14).
Next, a pipe member such as a pipe pipe is combined, and the bathtub and the bathtub mounting part (15) and the branch pipe part (8) of the drainage device are connected as the branch pipe part side pipe part.
After that, the deodorizing gutter part (2) is attached to the inside of the drainage device main body, and further, the deodorizing gutter part (2) and the deodorizing cylinder are attached to the opening (3) via the flange member (12). (7) forms the first sealed part (5), and the construction of the drainage device and the drainage pipe to the bathtub and the waterproof pan is completed.
[0017]
In the drainage pipe including the drainage device piped as described above, when drainage is generated from the washing section (14), the drainage is discharged from the drainage port (4) from the deodorization cylinder (7) and the deodorization gutter part (2). Is finally discharged from the discharge port (10) through the drain port channel (W1) to the sewage-side piping through the first sealing portion (5).
[0018]
Moreover, when drainage generate | occur | produces from a bathtub and a bathtub mounting part (15), drainage passes a 2nd sealing part (6) via a branch pipe part side drain piping and a branch pipe part, and also a drainage flow path Is finally discharged from the discharge port (10) through the branch pipe channel (W2) to the sewage side pipe.
[0019]
In the above embodiment, the drainage device is provided with a plurality of sealing portions, and the plurality of sealing portions are arranged so that the drainage from each sealing portion is drained in parallel (referred to herein as “ “The drainage from each sealed part is drained in parallel” means that the drainage from each sealed part can be drained to the sewage side without passing through other sealed parts. means).
As in the conventional example, when drainage from the branch pipe side pipe and drainage from the drain port (5) are combined and processed in one sealed water part, either the branch pipe side pipe or the drain port If there is a large amount of drainage from either side, it will easily cause a reverse flow to the other through the sealing part, but as in the above embodiment, the plurality of sealing parts are connected in parallel with the drainage from each sealing part. If it is arranged to be drained, the distance from the outlet of one sealed water section to the outlet (10) of the other sealed water section will be longer, and the drainage will rise and fall inside the sealed water section. Compared to the conventional example, the amount of water (or water pressure generated by the amount of water) required for the occurrence of the backflow is greatly increased, and the backflow hardly occurs. Particularly in the above embodiment, since the backflow prevention valve, which is a backflow prevention device, is provided at the discharge portion of the second sealing portion (6), even if there is a large amount of drainage from the drainage port, That is, a backflow does not occur on the bathtub mounting portion (15) or the bathtub side.
[0020]
Moreover, in the said Example, the waste_water | drain apparatus from which the waste_water | drain from several said sealing part flows was formed in the casing wall (1) which is one casing body, and comprises the whole drainage apparatus compactly. At the same time, members and construction methods necessary for construction, and usage methods can be the same as the conventional drainage device with a trap function, and by reducing the number of newly required members, the product can be made inexpensive. Moreover, the member management is made easy. In addition, since the construction method and the usage method are almost the same as the conventional method, it is not necessary to give any education / training to the installer or the user.
[0021]
The embodiment of the present invention is as described above, but the present invention is not limited to the above embodiment, and the configuration can be freely changed without changing the gist of the invention.
For example, in the above embodiment, the second sealing portion (6) is formed integrally with the casing wall (1). However, as in the embodiment shown in FIGS. 3 to 5, the second sealing portion ( 6) may be configured to be detachable from the casing wall (1) or the like.
By doing in this way, the clogging of the dust etc. which arose in the 2nd water-sealing part (7) can be eliminated easily, and it can clean easily also at the time of cleaning.
[0022]
Moreover, in the said Example, although the backflow prevention valve (11) which is a backflow prevention apparatus is integrated with the 2nd sealing part (6), the backflow prevention valve (11) like the Example shown in FIG. May be configured to be detachable from the second sealed water portion (6) as a member separate from the second sealed water portion (6). Since the backflow prevention device such as the backflow prevention valve (11) usually includes a movable part, it easily breaks or breaks down. However, by making the member detachable, it is possible to replace the member. Functional recovery can be performed.
[0023]
In the above embodiment, the backflow prevention device is a hinge-type backflow prevention valve (1). However, as in the embodiment shown in FIG. 7, a soft material that is substantially the same as water and has a small specific gravity. The effect of the present invention can be obtained even if the backflow prevention device is configured by the float valve (16) using the.
[0024]
Since this invention was comprised as mentioned above, there exist the following outstanding effects.
1. In the drainage device according to claim 1, the drainage device includes a plurality of sealing portions, and the plurality of sealing portions are arranged so that drainage from each sealing portion is drained in parallel. In addition to reducing the occurrence of backflow compared to conventional drainage devices, the backflow prevention device is provided with a backflow prevention device that prevents backflow of drainage, particularly at the discharge portion of at least one sealing part. It is possible to prevent backflow to the provided location.
2. In the drainage device according to claim 1, a backflow prevention device is provided in each drainage flow channel by forming drainage flow channels through which drainage from a plurality of sealed water portions flows in a casing wall which is one casing body. Eliminates the hassle of construction, makes the entire drainage device compact, and makes the members, construction methods, and usage methods necessary for construction the same as conventional drainage devices with a trap function, and newly required members By reducing the number of points, the product can be made inexpensive and member management can be facilitated. In addition, since the construction method and the usage method are almost the same as the conventional method, it is not necessary to give any education / training to the installer or the user.
3. In the drainage device according to claim 1, the sealing portion is provided at two locations on the opening side and the branch pipe side, and the backflow prevention device is provided at the discharge portion of the second sealing portion, so that the branch pipe side is provided. Can be prevented.
[Brief description of the drawings]
FIG. 1 is a (a) cross-sectional view and (b) AA ′ arrow view of a drainage pipe including a drainage device in a first embodiment of the present invention.
FIG. 2 is a (a) cross-sectional view and (b) BB ′ arrow view of a drainage pipe including a drainage device, showing how drainage flows in the first embodiment of the present invention.
FIG. 3 is an embodiment showing a drainage device according to the present invention in which a second sealing portion is detachable from a casing wall.
4 is a CC ′ arrow view of the drainage device in the embodiment of FIG. 3. FIG.
5 is a cross-sectional view showing a component configuration of a drainage device in the embodiment of FIG.
6 is a cross-sectional view of an embodiment of the present invention in which the backflow prevention valve is detachable from the second sealing portion. FIG. 7 is a cross-sectional view of an embodiment of the present invention in which the backflow prevention device is a float valve. FIG. 8 is a cross-sectional view showing a conventional drainage device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Casing wall 2 Deodorant gutter part 3 Opening part 4 Drain outlet 5 First sealing part 6 Second sealing part 7 Deodorant cylinder 8 Branch pipe part 9 Drain elbow 10 Outlet 11 Backflow prevention valve 12 Flange member 13 Ridge part 14 Washing place Part 15 Bathtub placing part 16 Float valve W1 Drain outlet channel W2 Branch pipe channel

Claims

In the drainage device to which a trap function is added by providing a sealing part,
A bottomed cylindrical deodorizing ridge (2);
A casing wall (1) provided with an opening (3) above the opening of the deodorization jar part (2), which forms a drainage channel through which drainage overflowing from the deodorant jar part (2) flows;
It is a cylindrical body opened up and down, and the upper end is connected to the opening (3) of the casing wall (1) in a watertight manner to form a drain port (4), and the lower end is disposed in the deodorizing gutter part (2). A deodorizing cylinder (7) which forms a first water-sealing part (5) together with the deodorizing gutter part (2);
A branch pipe portion (8) provided in the casing wall (1) into which drainage from another drainage device flows;
The lower end portion provided in a cylindrical shape in the vertical direction along the inner surface of the casing wall (1) communicates with the branch pipe portion (8), and drains the drainage into the drainage channel and discharges the drainage to the upper end portion. with a backflow prevention device for preventing the second seal water portion which is independent from the first seal water unit (5) and (6),
Provided on the side surface of the Ke pacing wall (1), the drainage port for discharging the waste water drainage passage (10),
Drainage device characterized by comprising.