JP6682070B2 - Drainage equipment piping structure - Google Patents

Drainage equipment piping structure Download PDF

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JP6682070B2
JP6682070B2 JP2015181234A JP2015181234A JP6682070B2 JP 6682070 B2 JP6682070 B2 JP 6682070B2 JP 2015181234 A JP2015181234 A JP 2015181234A JP 2015181234 A JP2015181234 A JP 2015181234A JP 6682070 B2 JP6682070 B2 JP 6682070B2
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drainage
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branch pipe
main body
joint member
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慶太 奥澤
慶太 奥澤
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丸一株式会社
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Description

本発明は、排水機器からの排水を枝管配管からの流体と合流させる、排水機器の配管構造に関し、更に詳しくは、上記排水配管において、排水の逆流が発生した場合に、どのような方向に配管しても枝管配管に接続される枝管部には逆流の排水が侵入しないようにした継手部材を備えた、排水機器の配管構造に関するものである。   The present invention relates to the piping structure of a drainage device, in which the drainage from the drainage device is joined with the fluid from the branch pipe, and more specifically, in the above drainage pipe, when a reverse flow of the drainage occurs, in what direction The present invention relates to a piping structure of a drainage device, which is provided with a joint member that prevents backflow drainage from entering a branch pipe portion connected to a branch pipe pipe.

従来より、洗面台や流し台、電気温水器等、使用によって排水を生じる機器（以下「排水機器」と記載）の排水を、下水側に排出するための排水配管構造が知られている。この排水配管構造の配管には、複数の排水機器からの排水を合流させて下流側に排出する構成のものが知られている。
以下に、この複数の排水機器からの排水を合流させて下水側に排出させる配管構造の従来例を説明する。 BACKGROUND ART Conventionally, a drainage pipe structure for discharging the drainage of a device (hereinafter referred to as “drainage device”) that produces drainage by use, such as a washbasin, a sink, and an electric water heater, to the sewer side is known. As a pipe of this drainage pipe structure, a structure is known in which the drainage from a plurality of drainage devices is combined and discharged to the downstream side.
Hereinafter, a conventional example of a pipe structure in which the drainages from the plurality of drainage devices are combined and discharged to the sewage side will be described.

特許文献１に記載の排水機器の配管構造は、第一の排水機器としての流し台と、枝管配管側の排水機器としての電気温水器と、からなる複数の排水機器の排水を処理するためのものである。
ここで、排水機器としての電気温水器について説明する。
特許文献１に記載の従来例の電気温水器は、電気によって給水を加熱して温水とし、洗面台や流し台等の吐水に利用する電気温水器である。これら洗面台や流し台等の電気温水器は、通常時、必要に応じてすぐ温水を吐水できるようにする必要があるため、その内部に貯水タンクを設け、貯水タンク内に一旦加熱などがされていない、自然な温度での給水を行った後、貯水タンク内の給水を適温になるまで事前に加熱しておき、必要に応じて即時温水を吐水できるように構成している。
このように、電気温水器は本来給水側の機器であるが、様々な理由により排水が発生する。
例えば、上記したように、貯水タンク内の給水に加熱した際、水温が上昇したことで貯水タンク内の給水が膨張し、貯水タンク内の給水の量が、貯水タンクの許容量を超える場合があり、許容量を超えた給水は排水として排出する必要がある。
また、給水タンク内の給水が長時間に渡り使用されず放置されると、雑菌等の繁殖の可能性があり、あまり衛生的と言えなくなる。このため、一定の時間をおいて貯水タンク内の給水を全て排出し、再度給水を溜めなおすように構成された電気温水器等もある。
このように、電気温水器においても排水が生じる場合があるが、吐水栓はあくまで使用者が必要に応じて吐水を行うための装置であるため、上記した排水を、使用者が意図しない吐水として吐水栓から排出することはできない。また、給水の本管側からは常時加圧が生じており、更に貯水タンク内の水を本管側に逆流させることは不衛生等の問題を有するため、技術的また衛生的な理由からこれらの排水を給水の本管側に排出することもできない。
このため、使用により排水が生じる電気温水器では、排水の処理を行うための排水管を別途設け、この排水管から下水側に排水を排出する。この排水管が本従来例でいう枝管配管に相当する。 The piping structure of the drainage device described in Patent Document 1 is for treating the drainage of a plurality of drainage devices including a sink as the first drainage device and an electric water heater as the drainage device on the branch pipe side. It is a thing.
Here, an electric water heater as a drainage device will be described.
The conventional electric water heater described in Patent Document 1 is an electric water heater that heats feed water by electricity to generate hot water, which is used for spouting a wash basin or sink. Since electric water heaters such as washbasins and sinks need to be able to immediately discharge hot water as needed during normal times, a water storage tank is provided inside the water heater to heat the water tank once. After the water is supplied at a natural temperature, the water in the water storage tank is preheated to an appropriate temperature, and hot water can be immediately discharged as needed.
As described above, the electric water heater is originally a device on the water supply side, but drainage occurs due to various reasons.
For example, as described above, when the water supply in the water storage tank is heated, the water supply in the water storage tank expands due to the rise in the water temperature, and the amount of water supply in the water storage tank may exceed the allowable amount of the water storage tank. Yes, water that exceeds the allowable amount must be discharged as wastewater.
Further, if the water supply in the water supply tank is left unused for a long time, there is a possibility that bacteria and the like will propagate, which makes it less hygienic. Therefore, there is an electric water heater or the like configured to discharge all the water supply in the water storage tank after a certain period of time and store the water supply again.
In this way, drainage may occur even in the electric water heater, but since the faucet is a device for the user to discharge water as needed, the drainage described above is treated as water discharge not intended by the user. It cannot be discharged from the faucet. In addition, since the main side of the water supply is constantly pressurized, further backflowing the water in the water storage tank to the main side has problems such as unsanitary conditions. It is not possible to discharge the wastewater from the main water supply side.
Therefore, in an electric water heater that produces drainage when used, a drainage pipe for treating the drainage is separately provided, and the drainage is discharged from this drainage pipe to the sewer side. This drainage pipe corresponds to the branch pipe in the conventional example.

なお、上記のように、電気温水器自体は本来吐水栓より給水を吐水する給水側の機器であり、電気温水器から生じた排水は大気開放されない限り「給水」であるが、ここでは、「電気温水器の給水タンクから、排水側の配管で処理されるように、排水配管に向かう配管側に排出された」時点で排水となったものとして扱うものとする。即ち、電気温水器は、吐水栓等に「給水を行う機器」であると共に、排水配管へ「排水を生じる機器」でもあるため「排水機器」でもある。以下の説明では、電気温水器を「排水機器」として説明を行う。   As described above, the electric water heater itself is originally a device on the water supply side that discharges water supply from the faucet, and the drainage generated from the electric water heater is `` water supply '' unless it is released to the atmosphere, but here, `` From the water supply tank of the electric water heater, it is treated as drainage when it is discharged to the pipe side toward the drainage pipe so that it can be treated by the drainage pipe. That is, the electric water heater is a “drainage device” because it is a “device that supplies water to the faucet and the like” and a “device that produces drainage” to the drainage pipe. In the following description, the electric water heater will be described as a “drainage device”.

特許文献１に記載の排水機器の配管構造は、第一の排水機器としての流し台と、第二の排水機器としての電気温水器と、からなる複数の排水機器の排水を処理するためのものであって、以下に記載する、流し台の排水トラップ、上流側管体、電気温水器の排水トラップ、継手部材、逆流防止弁、下流側管体より構成されてなる。
第一の排水機器である流し台に用いられる排水トラップは、上端が排水機器のシンクに取り付けられる部材であって、シンク内の排水が流入する排水口を備え、また、下端に排水口からの排水を排出するための排出口を備えてなり、また、その内部に排水の溜まり部分を設け、この溜まり部分を利用して排水の流路上に常時満水となる部分を形成し、この溜まり部分により臭気や害虫類の上流側（屋内側）への逆流を防止するように構成されてなる。
上流側管体は、流し台の排水トラップと、後述する継手部材とを接続する管体であって、流し台の排水トラップと上流側管体とで排水主管を形成する。
第二の排水機器である電気温水器の配管に用いられる排水トラップは、上端に配管部材を介して電気温水器からの排水が流入する流入口を、側面に上記流入口からの排水を排出するための流出口を備えてなり、またその内部に排水の溜まり部分を設け、この溜まり部分を利用して排水の流路上に常時満水となる部分を形成し、この溜まり部分により臭気や害虫類の上流側（電気温水器側）への逆流を防止するように構成されてなる。
上記のように、電気温水器と電気温水器の排水トラップを接続する配管部材によって、枝管配管を形成する。
排水継手は、上下方向に向かう筒状の本体部と、該本体部の側面から、外方向に向かうほど斜め上方に向かう傾斜を備えた枝管部と、からなる。また、継手部材の下流側端部には、継手部材を通過した排水を床下配管に排出するための直線状の管体である下流側管体を備えてなる。
本体部の上端は、上流側管体を介して排水機器側の排水トラップの排出口に、下端は下流側管体を介して床下配管へと繋がる配管に、それぞれ接続される。
また、枝管部は、上記電気温水器の排水トラップの流出口に接続される。
枝管部は、その一部が縦管部内に突出すると共に、枝管部の縦管部側端部上端は、枝管部の外側端部の下端よりも下方に位置するように構成されてなる。
逆流防止弁は、電気温水器の排水トラップの流出口に配置される部材であって、常時は閉塞し、電気温水器側から枝管部側への排水が生じた場合のみ開口して排水の通過を許容するように構成されてなる。
逆流防止弁を配管に採用する理由について、以下に説明する。電気温水器は給水側の機器でもあり、排水の排出を行う排水配管にそのまま直接接続した場合、下水側からの逆流が生じると、給水側である電気温水器の配管が下水側から逆流した排水に汚染される恐れがある。このため、電気温水器の排水トラップから継手部材の間に逆流防止弁を配置することで、下水側から逆流した排水が給水側の配管に直接流れ込むことを防止し、給水管が排水に汚染されることが無いようにしている。 The drainage pipe structure described in Patent Document 1 is for treating the drainage of a plurality of drainage devices including a sink as a first drainage device and an electric water heater as a second drainage device. It is composed of a drain trap for a sink, an upstream pipe, a drain trap for an electric water heater, a joint member, a check valve, and a downstream pipe, which are described below.
The drain trap used for the sink, which is the first drainage device, is a member that is attached to the sink of the drainage device at the upper end and has a drainage port through which the drainage in the sink flows, and at the lower end, the drainage from the drainage port. It also has a discharge port for discharging wastewater, and a drainage pool is provided inside the drainage pool to form a part that is always full on the drainage flow path. It is configured to prevent backflow of pests and insects to the upstream side (indoor side).
The upstream pipe is a pipe connecting the drain trap of the sink and a joint member described later, and the drain trap of the sink and the upstream pipe form a main drain pipe.
The drainage trap used in the piping of the electric water heater, which is the second drainage device, has an inlet at the upper end through which the drainage from the electric water heater flows in via the piping member, and a side surface that discharges the drainage from the above-mentioned inlet. It is equipped with an outflow port for drainage, and a drainage puddle is provided inside it to form a part that is always full on the drainage flow path by using this puddle, which collects odors and pests. It is configured to prevent backflow to the upstream side (electric water heater side).
As described above, the branch pipe is formed by the piping member that connects the electric water heater and the drain trap of the electric water heater.
The drainage joint is composed of a tubular main body that extends in the vertical direction, and a branch pipe portion that is inclined obliquely upward from the side surface of the main body toward the outside. The downstream end of the joint member is provided with a downstream pipe body which is a linear pipe body for discharging the drainage that has passed through the joint member to the underfloor pipe.
The upper end of the main body is connected to the outlet of the drain trap on the drainage device side via the upstream pipe, and the lower end is connected to the pipe connected to the underfloor pipe via the downstream pipe.
The branch pipe portion is connected to the outlet of the drain trap of the electric water heater.
The branch pipe portion is configured such that a part thereof projects into the vertical pipe portion, and an upper end of the vertical pipe portion side end of the branch pipe portion is located below a lower end of an outer end portion of the branch pipe portion. Become.
The check valve is a member that is placed at the outlet of the drain trap of the electric water heater, is normally closed, and opens only when drainage from the electric water heater side to the branch pipe side occurs and the drain It is configured to allow passage.
The reason why the check valve is used in the pipe will be described below. The electric water heater is also a device on the water supply side, and when it is directly connected to the drainage pipe that discharges wastewater, if a backflow from the sewage side occurs, the pipe of the electric water heater on the water supply side will flow back from the sewage side. May be contaminated by. For this reason, by placing a check valve between the drain trap of the electric water heater and the joint member, it is possible to prevent the backflow of drainage from the sewage side from directly flowing into the pipe on the water supply side, and the water supply pipe is contaminated with the drainage. I'm trying to avoid it.

上記のように構成した各部材は、以下のようにして施工される。
まず排水機器に備えられた、排水トラップ取り付け用の開口に、排水機器の排水トラップを接続する。この場合、排水機器の開口を介して排水機器上に排水機器の排水トラップの排水口が開口するようにする。
次に、排水機器の排水トラップの排出口に上流側管体の上端を、また上流側管体の下端に継手部材の上端を、それぞれ接続する。
次に、下流側管体を介して、継手部材の下端と床下配管とを接続する。
次に、電気温水器の排水が、電気温水器の排水トラップの流入口に排出されるように配管を接続する。
更に、電気温水器の排水トラップの流出口に逆流防止弁を配置した上で、電気温水器の排水トラップの流出口に継手部材の枝管部を接続して（即ち逆流防止弁は、電気温水器の排水トラップの流出口と枝管部の両方に触れるように配置されている）、第一の排水機器である流し台及び第二の排水機器である電気温水器の、排水配管の施工が完了する。 Each member configured as described above is constructed as follows.
First, connect the drain trap of the drainage device to the opening for attaching the drainage trap provided in the drainage device. In this case, the drain port of the drain trap of the drainage device should be opened above the drainage device through the opening of the drainage device.
Next, the upper end of the upstream pipe is connected to the outlet of the drain trap of the drainage device, and the upper end of the joint member is connected to the lower end of the upstream pipe.
Next, the lower end of the joint member and the underfloor pipe are connected via the downstream pipe body.
Next, the pipe is connected so that the drainage of the electric water heater is discharged to the inlet of the drain trap of the electric water heater.
Further, after placing a check valve at the outlet of the drain trap of the electric water heater, connect the branch pipe part of the joint member to the outlet of the drain trap of the electric water heater (that is, the check valve The drainage pipe of the drainage trap is installed so that it touches both the outlet of the drainage trap and the branch pipe), and the drainage pipe of the first drainage device and the electric water heater of the second drainage device are completed. To do.

上記のように構成した排水配管を備えた、流し台及び電気温水器が、使用により排水を生じると、生じた排水は、以下のようにして下水側に排出される。
流し台に使用によって排水が生じた場合、排水は、流し台のシンクに開口した排水口から、流し台の排水トラップ、上流側管体、継手部材の本体部、下流側管体、の順に通過し、最終的に床下配管から下水側に排出される。
また、電気温水器より排水が生じると、電気温水器からの排水は、排水管から電気温水器の排水トラップを介し、逆流防止弁、継手部材の枝管部、継手部材の本体部、下流側管体、の順に通過し、最終的に床下配管から下水側に排出される。 When the sink and the electric water heater having the drainage pipe configured as described above generate drainage by use, the generated drainage is discharged to the sewer side as follows.
When drainage occurs due to use in the sink, the drainage passes through the drainage port of the sink, the drain trap of the sink, the upstream pipe body, the main body of the joint member, and the downstream pipe body in this order. It is discharged from the underfloor piping to the sewage side.
When drainage occurs from the electric water heater, the drainage water from the electric water heater flows from the drain pipe through the drain trap of the electric water heater to the check valve, the branch pipe portion of the joint member, the main body portion of the joint member, and the downstream side. After passing through the pipe, it is finally discharged from the underfloor pipe to the sewage side.

また、下水側の床下配管から排水が逆流した場合や、排水機器からの排水が大量に生じ、排水配管を介しての床下配管への排水の排出が追い付かなかった場合などでは、枝管部側に排水が逆流（または流入）しようとする場合がある。しかしながら、この特許文献１に記載の継手部材では、枝管部は、外方向に向かうほど斜め上方に向かう傾斜を備えると共に、その一部が縦管部内に突出することで、枝管部の縦管部側端部上端が、枝管部の外側端部の下端よりも下方に位置するように構成してなる。更に枝管部の開放側の端部側（電気温水器の排水トラップの流出口に接続した側）に、常時は閉塞するように構成された逆流防止弁を備えてなる。
このように構成したことで、枝管部内の空気は、逆流防止弁によって電気温水器の排水トラップ側に通気することがなく、枝管部内に留まり続け、空気溜まりを形成する。
この空気溜まりにより、排水が逆流防止弁の位置まで侵入することが無い。
このため、逆流した排水が、電気温水器の排水トラップや排水管、電気温水器の貯水タンクなど、給水側の配管に到達することが無いのはもちろん、枝管部内の空気溜まりによって逆流防止弁が排水配管からの排水に触れることも無くなり、逆流防止弁よりも電気温水器側の機器を、極めて衛生的に使用することが可能となった。 In addition, if the drainage flows backward from the underfloor piping on the sewage side, or if a large amount of drainage occurs from the drainage equipment and the discharge of the drainage to the underfloor piping via the drainage piping cannot catch up, the branch pipe side The drainage may try to flow back (or in). However, in the joint member described in Patent Document 1, the branch pipe portion is provided with a slant toward the upper side as it goes outward, and a part thereof projects into the vertical pipe portion, so that the branch pipe portion has a vertical length. The upper end of the end portion on the pipe portion side is configured to be located below the lower end of the outer end portion of the branch pipe portion. Further, the open side end of the branch pipe portion (the side connected to the outlet of the drain trap of the electric water heater) is provided with a check valve that is normally closed.
With such a configuration, the air in the branch pipe portion does not vent to the drain trap side of the electric water heater by the check valve, and remains in the branch pipe portion to form an air pool.
Due to this air pool, drainage does not enter the position of the check valve.
For this reason, the backflow drainage does not reach the water supply side pipes such as the drain trap and drain pipe of the electric water heater, and the water storage tank of the electric water heater. No longer touches the drainage from the drainage pipe, which makes it possible to use the equipment on the electric water heater side rather than the check valve in a very hygienic manner.

特開２０１１−１５８１１３号JP, 2011-158113, A

上記のような特許文献１に記載の排水機器の配管構造の場合、以下に記載するような問題点があった。
排水機器の配管レイアウトは様々な場合があり、上記特許文献１に記載したように、継手部材の本体部の筒形状の軸を、上下方向に向けて配管する場合の他に、水平方向に向けて配管する場合がある（以降、「本体部の筒形状の軸を、上下方向に向けて配管する場合」を「縦置き」、「本体部の筒形状の軸を、水平方向に向けて配管する場合」を「横置き」と記載する）。しかしながら、継手部材を横置きに配管すると、枝管部は上下方向に対しては傾斜しない状態となる。このため、排水に逆流が発生しても、枝管部には傾斜による空気溜まりが発生しなくなり、逆流した排水が逆流防止弁まで達することになる。枝管部の逆流防止弁は、常時は閉塞しているため、逆流防止弁よりも電気温水器側に逆流した排水が進むことは無いが、逆流防止弁に排水が触れることで逆流防止弁が汚れるため、給水機器でもある電気温水器の配管としては不衛生である、という問題があった。上記問題は第二の排水機器が特に電気温水器など給水機器でもある場合に顕著な問題であるが、第二の排水機器が給水機器を兼ねない場合でも、逆流防止弁に逆流した排水が触れることによる問題が発生する。具体的には、逆流防止弁の可動部分に排水中の塵芥や毛髪が絡まるなどして、逆流防止弁が正常に動作しなくなり、上流から下流への排水時に逆流防止弁が開口しなくなったり、逆に常時閉塞型の逆流防止弁が開口状態のまま作動しなくなり、逆流が逆流防止弁を通過して更に上流に流れてしまう、といった問題が発生する。
本発明は上記問題点に鑑み発明されたものであって、排水機器の配管構造において継手部材を縦置き／横置きのいずれに配管しても支障なく枝管部分に空気溜まりを形成させ、逆流が継手部材の枝管側に侵入することを防止し、逆流防止弁に逆流した排水が触れることを防止するものである。 In the case of the drainage piping structure described in Patent Document 1 as described above, there are problems as described below.
There are various cases of drainage equipment piping layouts. As described in Patent Document 1, the tubular shaft of the main body of the joint member is not only piped vertically but also horizontally. (Hereinafter, "when piping the cylindrical shaft of the main unit in the vertical direction" is "vertical installation", "Piping the cylindrical shaft of the main unit in the horizontal direction""Whendoing" is described as "horizontal placement"). However, when the joint member is horizontally installed, the branch pipe portion is not inclined with respect to the vertical direction. For this reason, even if a backflow occurs in the drainage, the air accumulation due to the inclination does not occur in the branch pipe portion, and the backflowed drainage reaches the check valve. Since the check valve of the branch pipe is normally closed, the drainage that has flowed back to the electric water heater side does not proceed to the electric water heater side than the check valve, but the check valve can be opened by touching the check valve. Since it becomes dirty, there is a problem that it is unsanitary for the piping of the electric water heater which is also a water supply device. The above problem is remarkable when the second drainage device is also a water supply device such as an electric water heater. However, even when the second drainage device also does not function as a water supply device, the backflow prevention drain touches the backflow drainage. This causes problems. Specifically, dust and hair in the drainage is entangled in the movable part of the check valve, the check valve does not operate normally, and the check valve does not open when draining from upstream to downstream, On the contrary, there is a problem that the normally closed check valve does not operate in the open state, and the check flow passes through the check valve and flows further upstream.
The present invention has been made in view of the above problems, and in the piping structure of drainage equipment, even if the joint member is piped vertically or horizontally, an air pool is formed in the branch pipe portion without any problem, and the reverse flow is generated. Is prevented from entering the branch pipe side of the joint member, and the backflow prevention valve is prevented from touching the backflow drainage.

請求項１に記載の本発明は、排水機器からの排水を処理する、排水機器の配管構造であって、排水機器と、排水機器の排水を排出する排水主管と、流体が通過する枝管配管と、上流側の端部は排水主管に、下流側の端部は下水側の配管に、それぞれ接続され、また枝管配管に接続される略水平方向に配置される枝管部を備えた継手部材と、枝管配管から継手部材の枝管部上までの配管内に備えられた、常時は閉塞し、枝管配管側から枝管側への流体の移動が生じた場合のみ開口して流体の通過を許容する逆流防止弁と、からなる排水機器の配管構造において、
継手部材の内部に、本体部の内側面に備えられてなり、上流側端部は枝管部の本体部との接続個所の開口よりも上流側の位置で本体部の内側面に接続され、下流側端部は枝管部の本体部との接続個所の開口よりも下流側にて開放され、本体部内を、下流側の開放位置までにおいて、枝管部との接続箇所を含み本体部の上流側端部を含まない領域と、本体部の上流側との接続箇所を含み枝管部との接続箇所を含まない領域とに区画すると共に、本体部と枝管部を略水平方向に配置した時に、下流側端部の最も高い位置が、枝管部との接続箇所の開口部よりも低い位置となる貯留壁を備えたことを特徴とする、排水機器の配管構造である。
The present invention according to claim 1 is a piping structure of a drainage device for treating drainage from a drainage device, the drainage device, a drainage main pipe for discharging the drainage of the drainage device, and a branch pipe through which a fluid passes. And the upstream end is connected to the drainage main pipe, the downstream end is connected to the sewer pipe, and a joint provided with a branch pipe portion arranged in a substantially horizontal direction connected to the branch pipe A member and a pipe provided from the branch pipe to the branch pipe of the joint member, which is normally closed and opens only when the fluid moves from the branch pipe side to the branch pipe side. In the piping structure of drainage equipment consisting of a check valve that allows the passage of
Inside the joint member, provided on the inner side surface of the main body portion, the upstream end is connected to the inner side surface of the main body portion at a position upstream of the opening of the connection portion with the main body portion of the branch pipe portion, The downstream end portion is opened downstream from the opening of the connection portion with the main body portion of the branch pipe portion, and within the main body portion, up to the downstream open position, including the connection portion with the branch pipe portion, of the main body portion. It is divided into a region that does not include the upstream end portion and a region that includes the connection portion with the upstream side of the main body portion and does not include the connection portion with the branch pipe portion, and the main body portion and the branch pipe portion are arranged in a substantially horizontal direction The drainage pipe structure is characterized in that the drain wall has a storage wall in which the highest position of the downstream end is lower than the opening of the connection point with the branch pipe section.

請求項２に記載の本発明は、上記排水機器の配管構造において、枝管配管が排水主管に接続される排水機器とは別の排水機器の配管であって、更に枝管配管上に排水トラップを備えたことを特徴とする、段落００１１に記載の排水機器の配管構造である。   According to a second aspect of the present invention, in the piping structure of the drainage device, the branch pipe is a drainage pipe different from the drainage device connected to the drainage main pipe, and the drainage trap is further provided on the branch pipe. The piping structure of the drainage device according to paragraph 0011, further comprising:

請求項３に記載の本発明は、上記排水機器の配管構造において、枝管配管に接続される排水機器が、排水機器としての電気温水器であることを特徴とする、段落００１１または段落００１２に記載の排水機器の配管構造である。   According to a third aspect of the present invention, in the piping structure of the drainage device, the drainage device connected to the branch pipe is an electric water heater as the drainage device, in paragraph 0011 or paragraph 0012. It is the piping structure of the drainage device described.

請求項４に記載の本発明は、上記排水機器の配管構造において、上記貯留壁が、筒状の本体部の軸方向に沿って本体部の内面に接続することを特徴とする、段落００１１乃至段落００１３のいずれか一つに記載の排水機器の配管構造である。   According to a fourth aspect of the present invention, in the piping structure for the drainage device, the storage wall is connected to an inner surface of the main body portion along the axial direction of the tubular main body portion, paragraphs 0011 to 0011. The piping structure of the drainage device according to any one of paragraphs 0013.

請求項５に記載の本発明は、上記排水機器の配管構造において、上記貯留壁が略漏斗形状を成し、貯留壁の上流側端部が、継手部材の、筒状の本体部の内面に全周に渡って接続されてなることを特徴とする、段落００１１乃至段落００１３のいずれか一つに記載の排水機器の配管構造である。   According to a fifth aspect of the present invention, in the piping structure of the drainage device, the storage wall has a substantially funnel shape, and the upstream end of the storage wall is on the inner surface of the tubular main body of the joint member. The drainage pipe structure according to any one of paragraphs 0011 to 0013, wherein the pipe structure is connected over the entire circumference.

請求項６に記載の本発明は、上記貯留壁は、継手部材の本体部及び枝管部からなる他の部分とは別体に構成したことを特徴とする、段落００１１乃至段落００１５のいずれか一つに記載の排水機器の配管構造である。 The present invention as set forth in claim 6 is characterized in that the storage wall is configured separately from the other part formed of the main body part and the branch pipe part of the joint member, and is any one of paragraphs 0011 to 0015. It is the piping structure of the drainage device described in one.

請求項７に記載の本発明は、上記枝管部は、本体部を略水平方向に配置した時に、本体部の中心軸よりも上方の位置で、継手部材の本体部と接続することを特徴とする、段落００１１乃至段落００１６のいずれか一つに記載の排水機器の配管構造である。   The present invention according to claim 7 is characterized in that the branch pipe portion is connected to the main body portion of the joint member at a position above the central axis of the main body portion when the main body portion is arranged in a substantially horizontal direction. The piping structure of the drainage device according to any one of paragraphs 0011 to 0016.

請求項８に記載の本発明は、上記排水機器の配管構造において、継手部材を略水平方向に配置したとき、少なくとも継手部材よりも下流側の配管は、自然排水を行うために下流ほど下方に向かう配管が行われていることを特徴とする、段落００１１乃至段落００１７のいずれか一つに記載の排水機器の配管構造である。   According to the present invention of claim 8, in the piping structure of the drainage device, when the joint member is arranged in a substantially horizontal direction, at least the pipe on the downstream side of the joint member is downwardly lowered in order to perform natural drainage. The piping structure for the drainage device according to any one of paragraphs 0011 to 0017 is characterized in that the piping is directed toward the end.

請求項１に記載の本発明においては、継手部材内部に、継手部材の本体部内を、下流側の開放位置までにおいて、枝管部との接続箇所を含み本体部の上流側端部を含まない領域と、本体部の上流側との接続箇所を含み枝管部との接続箇所を含まない領域とに区画すると共に、本体部を略水平方向に配置した時に、下流側端部の最も高い位置が、本体部と枝管部との接続箇所の開口部よりも低い位置となる貯留壁を備え、また枝管部側に常時閉塞し排水時のみ開口する逆流防止弁を備えたことで、継手部材の縦置き時はもちろんのこと、横置き時でも、排水の逆流時に枝管部に空気溜まりが形成されて、逆流防止弁に逆流した排水が触れることが無くなった。
請求項２、請求項８に記載の本発明においては、排水機器の配管構造の配管レイアウトを明確にすることができる。
請求項３に記載の本発明においては、枝管配管側の機器の構成を明確にすることができる。
請求項４乃至請求項６に記載の本発明においては、本発明の継手部材の具体的構造を明確にすることができる。
請求項７に記載の本発明においては、継手部材の本体部と枝管部との接続箇所を、継手部材を横置きした場合に、本体部の上端位置となる位置としたことで、継手部材を横置きした場合に、貯留壁の下流側端部の最も高い位置が、枝管部との接続箇所の開口部よりも低い位置となるように容易に構成できる。 In the present invention as set forth in claim 1, inside the main body of the joint member, up to the open position on the downstream side, the connecting portion with the branch pipe portion is included and the upstream end portion of the main body portion is not included inside the joint member. The highest position of the downstream end when the main body is arranged in a substantially horizontal direction while being divided into a region and a region that includes the connection with the upstream side of the main body and does not include the connection with the branch pipe. Is equipped with a storage wall at a position lower than the opening at the connection between the main body part and the branch pipe part, and with a check valve that is always closed on the branch pipe part side and opens only when draining. Not only when the member is placed vertically, but also when it is placed horizontally, an air pool is formed in the branch pipe portion when the drainage flows backward, and the drainage flowing back to the check valve is no longer touched.
According to the present invention described in claims 2 and 8, the piping layout of the piping structure of the drainage device can be clarified.
In the present invention according to claim 3, the configuration of the device on the side of the branch pipe can be clarified.
In the present invention described in claims 4 to 6, the specific structure of the joint member of the present invention can be clarified.
In the present invention as set forth in claim 7, the joint member is configured such that the connection point between the main body portion and the branch pipe portion of the joint member is the upper end position of the main body portion when the joint member is placed horizontally. Can be easily configured so that the highest position of the downstream end of the storage wall is lower than the position of the opening at the connection point with the branch pipe section when the storage container is placed horizontally.

本発明の第一実施例の第一の施工事例を示す参考図である。It is a reference drawing showing the 1st construction example of the 1st example of the present invention. 図１の側面方向からの施工状態を示す断面図である。It is sectional drawing which shows the construction state from the side surface direction of FIG. 本発明の第一実施例の継手部材の、縦置き時の正面図である。It is a front view of the joint member of the first example of the present invention at the time of vertical installation. 図３の実施例の、逆流が発生した状態を示す断面図である。It is sectional drawing which shows the state which the backflow generate | occur | produced of the Example of FIG. 第一実施例の継手部材の、図３における底面図である。It is a bottom view in FIG. 3 of the joint member of 1st Example. 図３の継手部材のａ−ａ断面図である。FIG. 4 is a sectional view taken along the line aa of the joint member of FIG. 3. 図３の継手部材のｂ−ｂ断面図であるFIG. 4 is a cross-sectional view taken along the line bb of the joint member of FIG. 3. 第一実施例の継手部材の、領域を説明する参考図である。It is a reference drawing explaining the field of the joint member of a 1st example. 第一実施例の継手部材の斜視図である。It is a perspective view of the joint member of a 1st example. 第一実施例の第一の施工事例の要部を示す断面図である。It is sectional drawing which shows the principal part of the 1st construction example of 1st Example. 第一実施例の第一の施工事例の、逆流時の要部を示す断面図である。It is sectional drawing which shows the principal part at the time of reverse flow of the 1st construction example of 1st Example. 第一実施例の第二の施工事例の、側面方向からの施工状態を示す断面図である。It is sectional drawing which shows the construction state from the side surface direction of the 2nd construction example of 1st Example. 第一実施例の第二の施工事例の要部を示す断面図である。It is sectional drawing which shows the principal part of the 2nd construction example of 1st Example. 第一実施例の第二の施工事例の、逆流時の要部を示す断面図である。It is sectional drawing which shows the principal part at the time of reverse flow of the 2nd construction example of 1st Example. 本発明の、貯留壁を漏斗状にした継手部材の実施例を示す断面図である。It is sectional drawing which shows the Example of the joint member which made the storage wall the funnel shape of this invention. 図１５の継手部材を縦置きした施工事例の要部を示す断面図である。It is sectional drawing which shows the principal part of the construction example which vertically installed the joint member of FIG. 図１５の継手部材を縦置きした施工事例の、逆流時の要部を示す断面図である。It is sectional drawing which shows the principal part at the time of reverse flow of the construction example which installed the joint member of FIG. 15 vertically. 図１５の継手部材を横置きした施工事例の要部を示す断面図である。It is sectional drawing which shows the principal part of the construction example which laid the joint member of FIG. 15 horizontally. 図１５の継手部材を横置きした施工事例の、逆流時の要部を示す断面図である。It is sectional drawing which shows the principal part at the time of reverse flow of the construction example which laid the joint member of FIG. 15 horizontally. 本発明の、貯留壁下端を傾斜面とした継手部材の実施例を示す断面図である。It is sectional drawing which shows the Example of the joint member which made the lower end of the storage wall the inclined surface of this invention.

以下に、本発明の第一実施例を説明する。
尚、本実施例では、同一形状の継手部材１を用い、施工時にこの継手部材１の本体部１ａの中心軸が上下方向に配置される縦置きの場合と、水平方向に配置される横置きの場合とを説明するため、まず以下に本実施例の継手部材１の構成を説明し、その上で第一の施工事例として施工時に継手部材１の本体部１ａの中心軸が上下方向に配置される縦置きの場合を、第二の施工事例として施工時に継手部材１の本体部１ａの中心軸が水平方向に配置される横置きの場合を、それぞれ説明する。 The first embodiment of the present invention will be described below.
In addition, in this embodiment, the joint member 1 having the same shape is used, and the vertical direction in which the central axis of the main body portion 1a of the joint member 1 is vertically arranged at the time of construction, and the horizontally arranged horizontally. In the following, the configuration of the joint member 1 of the present embodiment will be described below, and as a first construction example, the central axis of the main body portion 1a of the joint member 1 is arranged in the vertical direction during the construction. The case of vertical installation will be described as a second example of the case of horizontal installation in which the central axis of the main body 1a of the joint member 1 is horizontally arranged during the installation.

以下に、本発明の第一実施例の継手部材１を、図面を参照しつつ説明する。
図３乃至図９に示した、本発明の継手部材１は、略円筒形状を成す管体からなる本体部１ａと、該本体部１ａの側面から水平方向に延出された、円筒形状の枝管部１ｂとからなる。枝管部１ｂと本体部１ａの接続箇所は、縦置き及び横置きした場合に、本体部１ａの軸方向視円形状を成す本体部１ａに対し、円形状の上端部分から接線方向に向かって、水平方向に延出されてなる。即ち、枝管部１ｂは、本体部１ａを縦置き及び横置きに配置した時に、本体部１ａの中心軸よりも上方の位置で、継手部材１の本体部１ａと接続するように構成されてなる。
ここで、枝管部１ｂが延出されている方向を水平方向と言うのは、施工完了時に、継手部材１の本体部１ａの中心軸が上下方向に配置された縦置きの場合でも、水平方向に配置された横置きの場合でも、枝管部１ｂは水平方向に延出された状態に配置されるためである。また、当然ながら、筒状の本体部１ａと枝管部１ｂとは、内部において連通している。
また、継手部材１の内部には、継手部材１の内部を区画するための貯留壁２を備えてなる。
貯留壁２について詳述すると、貯留壁２は、本体部１ａの内側面に備えられた壁面であって、本実施例の貯留壁２は、筒状の本体部１ａの上流から下流方向に沿って、本体部１ａの内面に接続される板状部分２ａと、本体部１ａと枝管部１ｂの間の部分を塞ぐ扇状部分２ｂと、からなる。
このように構成された貯留壁２によって、継手部材１の本体部１ａの内部は、貯留壁２の下流側の開放位置までにおいて、図７に示したように、枝管部１ｂとの接続箇所を含み本体部１ａの上流側端部を含まない領域（図７中「Ａ」で示した領域）と、本体部１ａの上流側との接続箇所を含み枝管部１ｂとの接続箇所を含まない領域（図７中「Ｂ」で示した領域）とに区画される。
尚、「貯留壁２の下流側の開放位置」とは、貯留壁２の下流側の端部の内、最も上流側に近い位置を指し示すものである。第一実施例の継手部材１のように、円筒を成す本体部１ａの軸に対して垂直な面によって貯留壁２の下端が形成される場合は、貯留壁２の下流側端部の全体が「最も上流側に近い下流側の端部」となる。
また、「貯留壁２が、本体部１ａ内を、下流側の開放位置までにおいて、枝管部１ｂとの接続箇所を含み本体部１ａの上流側端部を含まない領域と、本体部１ａの上流側との接続箇所を含み本体部１ａの上流側端部を含まない領域とに区画する」とは、上記した「貯留壁２の下流側の開放位置」を含み、排水の流路に対して垂直な面を仮定したとき（以下この仮定した面を「貯留壁２の下端が成す面」と記載）、継手部材１内部の「貯留壁２の下端が成す面」よりも上流側が、貯留壁２と貯留壁２の下端が成す面によって、枝管部１ｂとの接続箇所を含み本体部１ａの上流側端部を含まない領域と、本体部１ａの上流側との接続箇所を含み本体部１ａの上流側端部を含まない領域とに区画されることを意味する。
また、上記継手部材１においては、図１３乃至図１４に示したように、継手部材１を横置きした場合に、貯留壁２の下流側端部の最も高い位置が、枝管部１ｂとの接続箇所の開口部よりも低い位置となるように構成されている（本実施例の継手部材１では、貯留壁２の下流側端部は、横置きした場合全体に同じ高さになるため、貯留壁２の下流側端部の全てが「貯留壁２の下流側端部の最も高い位置」となる）。 Hereinafter, the joint member 1 according to the first embodiment of the present invention will be described with reference to the drawings.
The joint member 1 of the present invention shown in FIGS. 3 to 9 includes a main body 1a made of a tubular body having a substantially cylindrical shape, and a cylindrical branch extending in a horizontal direction from a side surface of the main body 1a. It is composed of a tube portion 1b. The branch pipe portion 1b and the main body portion 1a are connected in a tangential direction from the upper end portion of the circular shape to the main body portion 1a which has a circular shape as viewed in the axial direction of the main body portion 1a when vertically and horizontally placed. , Extended horizontally. That is, the branch pipe portion 1b is configured to be connected to the main body portion 1a of the joint member 1 at a position above the central axis of the main body portion 1a when the main body portion 1a is arranged vertically and horizontally. Become.
Here, the direction in which the branch pipe portion 1b extends is referred to as the horizontal direction, even if the central axis of the main body portion 1a of the joint member 1 is vertically arranged at the time of completion of the construction, even if it is placed vertically. This is because the branch pipe portion 1b is arranged in a state of being extended in the horizontal direction even in the case of horizontal placement arranged in the direction. Further, as a matter of course, the tubular main body portion 1a and the branch pipe portion 1b communicate with each other inside.
In addition, a storage wall 2 for partitioning the inside of the joint member 1 is provided inside the joint member 1.
The storage wall 2 will be described in detail. The storage wall 2 is a wall surface provided on the inner side surface of the main body 1a, and the storage wall 2 of the present embodiment is arranged along the upstream to the downstream direction of the tubular main body 1a. A plate-shaped portion 2a connected to the inner surface of the main body portion 1a, and a fan-shaped portion 2b closing a portion between the main body portion 1a and the branch pipe portion 1b.
With the storage wall 2 configured in this way, the inside of the main body portion 1a of the joint member 1 reaches the open position on the downstream side of the storage wall 2, as shown in FIG. Including a connection portion with the upstream side of the main body portion 1a and a connection portion with the branch pipe portion 1b. It is divided into a non-existing region (region indicated by “B” in FIG. 7).
The "downstream opening position of the storage wall 2" refers to the position closest to the upstream side of the downstream end of the storage wall 2. When the lower end of the storage wall 2 is formed by a surface perpendicular to the axis of the main body 1a forming the cylinder as in the joint member 1 of the first embodiment, the entire downstream end of the storage wall 2 is It is the "end on the downstream side closest to the upstream side".
In addition, “a region where the storage wall 2 includes the connection portion with the branch pipe portion 1b and does not include the upstream end portion of the main body portion 1a in the main body portion 1a up to the downstream open position. The partitioning into a region that includes the connection portion with the upstream side and does not include the upstream end of the main body portion 1a "includes the above-described" open position on the downstream side of the storage wall 2 "and When a vertical surface is assumed (hereinafter, this assumed surface is referred to as “a surface formed by the lower end of the storage wall 2”), the upstream side of the “surface formed by the lower end of the storage wall 2” inside the joint member 1 is A main body including a region including a connection portion with the branch pipe portion 1b and not including an upstream end portion of the main body portion 1a, and a connection portion with an upstream side of the main body portion 1a by a surface formed by the wall 2 and the lower end of the storage wall 2 It means that it is divided into a region that does not include the upstream end of the portion 1a.
Further, in the joint member 1, as shown in FIGS. 13 to 14, when the joint member 1 is laid horizontally, the highest position of the downstream end of the storage wall 2 is the branch pipe portion 1b. It is configured to be located at a position lower than the opening of the connection point (in the joint member 1 of the present embodiment, the downstream end of the storage wall 2 has the same height when horizontally placed, The entire downstream end of the storage wall 2 is the "highest position of the downstream end of the storage wall 2)".

以下に、上記段落００２２に記載した継手部材１を利用した第一実施例の継手部材１の施工事例の内、第一の施工事例として継手部材１を縦置きした場合の施工事例を、図面を参照しつつ記載する。
本発明の第一実施例のうち、図１乃至図１１に示した、第一の施工事例を示す配管構造においては、使用により排水を生じる排水機器の内、排水主管にて排水を行う排水機器として流し台Ｋを、枝管配管５によって排水を行う排水機器としての電気温水器Ｄを、それぞれ有してなり、それらの排水配管は、上記段落００２２に記載された継手部材１と、以下に記載する、流し台の排水トラップＫＴ、上流側管体４、電気温水器の排水トラップＤＴ、逆流防止弁３、及び下流側管体６より構成されてなる。
流し台Ｋに用いられる流し台の排水トラップＫＴは、上端が排水機器のシンクに取り付けられる部材であって、シンク内の排水が流入する排水口を備え、また、下端に排水口からの排水を排出するための排出口を備えてなり、また、その内部に排水の溜まり部分を設け、この溜まり部分を利用して排水の流路上に常時満水となる部分を形成し、この溜まり部分により臭気や害虫類の上流側（屋内側）への逆流を防止するように構成されてなる。
上流側管体４は、流し台の排水トラップＫＴと、後述する継手部材１とを接続する直線状の管体であって、流し台の排水トラップＫＴと上流側管体４とで排水主管を形成する。
電気温水器Ｄの配管に用いられる電気温水器の排水トラップＤＴは、上端に配管部材を介して電気温水器Ｄからの排水が流入する流入口を、側面に上記流入口からの排水を排出するための流出口を備えてなり、またその内部に排水の溜まり部分を設け、この溜まり部分を利用して排水の流路上に常時満水となる部分を形成し、この溜まり部分により臭気や害虫類の上流側（電気温水器Ｄ側）への逆流を防止するように構成されてなる。
電気温水器Ｄからの配管と、上記した電気温水器の排水トラップＤＴとからなる配管によって、枝管配管５を形成する。
逆流防止弁３は、電気温水器の排水トラップＤＴの流出口に配置される部材であって、常時は閉塞し、電気温水器Ｄ側から枝管部１ｂ側への排水が生じた場合のみ開口して排水の通過を許容するように構成されてなる。
下流側管体６は、直管からなる管体であって、上流側の端部は継手部材１の下端に、下流側の端部は下水側に繋がる床下配管に、それぞれ接続される。 Among the construction examples of the joint member 1 of the first embodiment using the joint member 1 described in the above paragraph 0022, a construction example in which the joint member 1 is placed vertically as a first construction example will be described below with reference to the drawings. It will be described with reference.
In the piping structure showing the first construction example shown in FIGS. 1 to 11 in the first embodiment of the present invention, the drainage equipment for draining water in the drainage main pipe among the drainage equipment that produces drainage by use. And a water heater D as a drainage device for draining water through the branch pipe 5, and these drainage pipes are the joint member 1 described in the above paragraph 0022 and the following. The drain trap KT of the sink, the upstream pipe body 4, the drain trap DT of the electric water heater, the check valve 3 and the downstream pipe body 6.
The drainage trap KT of the sink used for the sink K is a member whose upper end is attached to the sink of the drainage device, has a drainage port through which the drainage in the sink flows, and discharges the drainage from the drainage port at the lower end. In addition, a drainage reservoir is provided inside the drainage outlet, and the drainage passage is used to form a portion that is always full of water in the drainage flow path. Is configured to prevent backflow to the upstream side (indoor side).
The upstream pipe 4 is a straight pipe that connects the drain trap KT of the sink and the joint member 1 described later, and the drain trap KT of the sink and the upstream pipe 4 form a main drain pipe. .
The drain trap DT of the electric water heater used for the piping of the electric water heater D has an inlet at the upper end through which the drain water from the electric water heater D flows, and a side surface at which the drain water is discharged. It is equipped with an outflow port for drainage, and a drainage puddle is provided inside it to form a part that is always full on the drainage flow path by using this puddle, which collects odors and pests. It is configured to prevent backflow to the upstream side (electric water heater D side).
A branch pipe 5 is formed by a pipe including the pipe from the electric water heater D and the drain trap DT of the electric water heater described above.
The check valve 3 is a member arranged at the outlet of the drain trap DT of the electric water heater, is normally closed, and is opened only when drainage from the electric water heater D side to the branch pipe portion 1b side occurs. And is configured to allow passage of drainage.
The downstream pipe body 6 is a pipe body made of a straight pipe, and an upstream end portion thereof is connected to a lower end of the joint member 1 and a downstream end portion thereof is connected to an underfloor pipe connected to the sewer side.

上記のように構成した各部材は、以下のようにして施工される。
まず流し台Ｋに備えられた、排水トラップ取り付け用の開口に、流し台の排水トラップＫＴを接続する。この場合、流し台Ｋの開口を介して流し台Ｋのシンク上に流し台の排水トラップＫの排水口が開口するようにする。
次に、継手部材１を縦置き、即ち継手部材１の本管部の軸が上下方向を向くように配置した上で、流し台の排水トラップＫＴの排出口に上流側管体４の上端を、また上流側管体４の下端に継手部材１の上端を、それぞれ接続する。
次に、直管形状を成す下流側管体６を介して、継手部材１の下端と床下配管とを接続する。
次に、電気温水器Ｄの配管を、電気温水器の排水トラップＤＴの流入口に接続する。
更に、電気温水器の排水トラップＤＴの流出口に逆流防止弁３を配置した上で、電気温水器の排水トラップＤＴの流出口に継手部材１の枝管部１ｂを接続して、第一の排水機器である流し台Ｋ及び第二の排水機器である電気温水器Ｄの、第一の施工事例での排水配管の施工が完了する。 Each member configured as described above is constructed as follows.
First, the drain trap KT of the sink is connected to the drain trap mounting opening provided in the sink K. In this case, the drain port of the drain trap K of the sink is made to open on the sink of the sink K through the opening of the sink K.
Next, the joint member 1 is placed vertically, that is, the axis of the main pipe portion of the joint member 1 is oriented vertically, and the upper end of the upstream pipe body 4 is connected to the discharge port of the drain trap KT of the sink. Further, the upper end of the joint member 1 is connected to the lower end of the upstream pipe body 4, respectively.
Next, the lower end of the joint member 1 and the underfloor pipe are connected via the downstream pipe body 6 having a straight pipe shape.
Next, the pipe of the electric water heater D is connected to the inflow port of the drain trap DT of the electric water heater.
Furthermore, after arranging the check valve 3 at the outlet of the drain trap DT of the electric water heater, the branch pipe portion 1b of the joint member 1 is connected to the outlet of the drain trap DT of the electric water heater. The construction of the drainage pipe in the first construction example of the sink K as the drainage equipment and the electric water heater D as the second drainage equipment is completed.

上記のように構成した排水配管を備えた、流し台Ｋ及び電気温水器Ｄが、使用により排水を生じると、生じた排水は、以下のようにして下水側に排出される。
流し台Ｋに使用によって排水が生じた場合、排水は、流し台Ｋのシンクに開口した排水口から、流し台の排水トラップＫＴ、上流側管体４、継手部材１の本体部１ａ、下流側管体６、の順に通過し、最終的に床下配管から下水側に排出される。
また、電気温水器Ｄより排水が生じると、電気温水器Ｄからの排水は、電気温水器Ｄの配管から電気温水器の排水トラップＤＴを介し、逆流防止弁３、継手部材１の枝管部１ｂ、継手部材１の本体部１ａ、下流側管体６、の順に通過し、最終的に床下配管から下水側に排出される。 When the sink K and the electric water heater D having the drainage pipe configured as described above generate drainage by use, the generated drainage is discharged to the sewer side as follows.
When drainage is generated by using the sink K, the drainage is discharged from the drainage opening of the sink K through the drainage trap KT of the sink, the upstream pipe body 4, the main body portion 1a of the joint member 1, and the downstream pipe body 6. , And then finally discharged from the underfloor piping to the sewage side.
When drainage is generated from the electric water heater D, the drainage water from the electric water heater D flows from the pipe of the electric water heater D through the drain trap DT of the electric water heater, the check valve 3 and the branch pipe portion of the joint member 1. 1b, the main body portion 1a of the joint member 1, and the downstream pipe body 6 in this order, and finally discharged from the underfloor pipe to the sewer side.

また、下水側の床下配管から排水が逆流した場合や、排水機器からの排水が大量に生じて、継手部材１の枝管部１ｂ側に排水が逆流（または流入）しようとする場合がある。
しかしながら、この第一実施例の第一の施工事例の縦置きされた継手部材１の内部は、貯留壁２によって、枝管部１ｂ内に空気溜まりを形成して逆流した排水が枝管内に侵入することを防止するように構成されてなる。
詳述すると、この第一実施例の第一の施工事例の縦置きされた継手部材１の内部は、貯留壁２によって、貯留壁２の下流側の開放位置までにおいて、枝管部１ｂ及び枝管部１ｂとの接続箇所を含み本体部１ａの上流側端部を含まない領域と、本体部１ａの上流側との接続箇所を含み本体部１ａの上流側端部を含まない領域とに区画されている。
枝管部１ｂの端部に、常時は閉塞している逆流防止弁３を備えていることによって、枝管部１ｂ及び枝管部１ｂとの接続箇所を含み本体部１ａの上流側端部を含まない領域から空気が上流側（電気温水器Ｄ側）に抜けることが無く、枝管部１ｂ及び枝管部１ｂとの接続箇所を含み本体部１ａの上流側端部を含まない領域に空気溜まりが形成される。
この空気溜まりにより、排水が枝管部１ｂや枝管部１ｂの上流側にある逆流防止弁３の位置まで侵入することが無い。
このため、逆流した排水が、電気温水器の排水トラップＤＴや電気温水器Ｄの貯水タンクなど、給水側の配管に到達することが無いのはもちろん、枝管部１ｂ内の空気溜まりによって逆流防止弁３が排水配管からの排水に触れることも無くなり、逆流防止弁３よりも電気温水器Ｄ側の機器を、極めて衛生的に使用することが可能となった。 Further, there is a case where the drainage flows back from the underfloor piping on the sewage side, or a large amount of drainage occurs from the drainage device, and the drainage tends to flow back (or flow into) the branch pipe portion 1b side of the joint member 1.
However, inside the vertically arranged joint member 1 of the first construction example of the first embodiment, the storage wall 2 forms an air reservoir in the branch pipe portion 1b, and the backflow drainage enters the branch pipe. It is configured to prevent this.
More specifically, the interior of the vertically arranged joint member 1 of the first construction example of the first embodiment is provided by the storage wall 2 up to the open position on the downstream side of the storage wall 2 and the branch pipe portion 1b and the branch. Partitioned into a region that includes the connection portion with the pipe portion 1b and does not include the upstream end of the main body portion 1a, and a region that includes the connection portion with the upstream side of the main body portion 1a and does not include the upstream end portion of the main body portion 1a. Has been done.
By providing the check valve 3 which is normally closed at the end portion of the branch pipe portion 1b, the upstream end portion of the main body portion 1a including the branch pipe portion 1b and the connection portion with the branch pipe portion 1b is provided. Air does not escape to the upstream side (electric water heater D side) from the area that does not include air, and the air does not flow to the area that includes the branch pipe portion 1b and the connection portion with the branch pipe portion 1b and does not include the upstream end of the main body portion 1a. A puddle is formed.
Due to this air accumulation, drainage does not enter the branch pipe portion 1b or the position of the check valve 3 on the upstream side of the branch pipe portion 1b.
Therefore, the backflow drainage does not reach the piping on the water supply side such as the drain trap DT of the electric water heater or the water storage tank of the electric water heater D, and the backflow is prevented by the air pool in the branch pipe portion 1b. Since the valve 3 does not touch the drainage from the drainage pipe, it becomes possible to use the device on the electric water heater D side of the check valve 3 in an extremely hygienic manner.

次に、上記段落００２２に記載した継手部材１を利用した第一実施例の継手部材１の施工事例の内、第二の施工事例として継手部材１を縦置きした場合の施工事例を、図面を参照しつつ記載する。
本発明の第一実施例のうち、図１２乃至図１４に示した、第二の施工事例を示す配管構造においては、使用により排水を生じる排水機器として、排水主管４により排水を処理する排水機器として流し台Ｋを、枝管配管５により排水を処理する排水機器としての電気温水器Ｄを、それぞれ有してなり、それらの排水配管は、上記段落００２２に記載された継手部材１と、以下に記載する、流し台の排水トラップＫＴ、上流側管体４、電気温水器の排水トラップＤＴ、逆流防止弁３、及び下流側管体６より構成されてなる。
これらの内、上流側管体４、及び下流側管体６以外の部材は、段落００２３に記載した、第一の施工事例の各部材と同一の構成のため省略し、上流側管体４及び下流側管体６の構成について以下に説明する。
上流側管体４は、流し台の排水トラップＫＴと継手部材１とを接続する、途中に略９０度屈曲する部分を設けた管体であって、流し台の排水トラップＫＴと上流側管体４とで排水主管を形成する。
下流側管体６は、途中に略９０度屈曲する部分を設けた管体であって、上流側の端部は継手部材１の下端に、下流側の端部は下水側に繋がる床下配管に、それぞれ接続される。
ここで、上流側管体４及び下流側管体６について、屈曲する部分の曲がりの角度を「略」９０度とするのは、実際には自然排水のために、横方向に配管される部分に１．２度程度の下り勾配を設定するため、正確に９０度の曲がり角度にはなっていないためである。 Next, of the construction examples of the joint member 1 of the first embodiment using the joint member 1 described in the above paragraph 0022, a construction example in which the joint member 1 is vertically placed as a second construction example is shown in the drawings. It will be described with reference.
Of the first embodiment of the present invention, in the piping structure showing the second construction example shown in FIGS. 12 to 14, as the drainage device for producing the drainage by use, the drainage device for treating the drainage by the drainage main pipe 4. And a water heater D as a drainage device for treating drainage by the branch pipe 5, and these drainage pipes are the joint member 1 described in the above paragraph 0022 and the following. It comprises the drain trap KT of the sink, the upstream pipe body 4, the drain trap DT of the electric water heater, the check valve 3 and the downstream pipe body 6 which are described.
Of these, members other than the upstream pipe body 4 and the downstream pipe body 6 are omitted because they have the same configurations as the members of the first construction example described in paragraph 0023, and the upstream pipe body 4 and The configuration of the downstream pipe body 6 will be described below.
The upstream pipe body 4 is a pipe body that connects the drainage trap KT of the sink and the joint member 1 and is provided with a portion that bends approximately 90 degrees in the middle, and the drainage trap KT of the sink and the upstream pipe body 4 are connected to each other. To form the main drainage pipe.
The downstream pipe 6 is a pipe provided with a portion that bends approximately 90 degrees in the middle, and an upstream end is a lower end of the joint member 1, and a downstream end is an underfloor pipe connected to the sewer side. , Each connected.
Here, regarding the upstream side pipe body 4 and the downstream side pipe body 6, the bending angle of the bent portion is set to "approximately" 90 degrees, in fact, because of natural drainage, the portion is piped in the lateral direction. This is because a downward gradient of about 1.2 degrees is set for the angle, so that the bending angle is not exactly 90 degrees.

上記のように構成した各部材は、以下のようにして施工される。
まず排水機器に備えられた、排水トラップ取り付け用の開口に、排水機器の排水トラップを接続する。この場合、排水機器の開口を介して排水機器上に排水機器の排水トラップの排水口が開口するようにする。
次に、継手部材１を横置き、即ち継手部材１の本体部１ａの軸が水平方向を向くように配置した上で、流し台の排水トラップＫＴの排出口に上流側管体４の上端を、また上流側管体４の下流側端部に継手部材１の上流側端部を、それぞれ接続する。上流側管体４は、段落００２７に記載したように、途中に略９０度屈曲する部分を設けてなるため、下方を向いた流し台の排水トラップＫＴの下端に接続すると、屈曲部分にて略水平方向に方向が変化し、横置きした継手部材１の本体部１ａの上流側端部に方向を合わせて接続することができる。
次に、下流側管体６を介して、継手部材１の下流側端部と床下配管とを接続する。上記のように、継手部材１は横置きされており、途中に略９０度屈曲する部分を設けた下流側管体６を接続することで、下流側管体６の下端は下方を向き、下水側に繋がる床下配管に接続することができる。
尚、上記下流側管体６について、略水平の部分には、実際には段落００２７に記載の通り、排水の為の若干の下り勾配（約１．２度程度）を設けてなる。即ち、下流側管体６の略水平の部分は、下流ほど下方に向かう配管である。また、下流側管体６の垂直部分も、当然に下流ほど下方に向かう配管である。
このため、この第二の施工事例は、継手部材１を略水平方向に配置したとき、継手部材１よりも下流側の配管である下流側管体６は、自然排水を行うために下流ほど下方に向かう配管が行われている。 Each member configured as described above is constructed as follows.
First, connect the drain trap of the drainage device to the opening for attaching the drainage trap provided in the drainage device. In this case, the drain port of the drain trap of the drainage device should be opened above the drainage device through the opening of the drainage device.
Next, the joint member 1 is placed horizontally, that is, the axis of the main body 1a of the joint member 1 is oriented in the horizontal direction, and the upper end of the upstream pipe body 4 is connected to the discharge port of the drain trap KT of the sink. Further, the upstream end of the joint member 1 is connected to the downstream end of the upstream pipe body 4, respectively. As described in paragraph 0027, the upstream pipe body 4 is provided with a portion that bends approximately 90 degrees in the middle, so if it is connected to the lower end of the drain trap KT of the sink that faces downward, it is substantially horizontal at the bending portion. The direction is changed in the direction, and it is possible to match and connect to the upstream end of the main body 1a of the joint member 1 placed horizontally.
Next, the downstream end of the joint member 1 and the underfloor pipe are connected via the downstream pipe 6. As described above, the joint member 1 is laid horizontally, and by connecting the downstream side pipe body 6 provided with a portion that bends approximately 90 degrees in the middle, the lower end of the downstream side pipe body 6 faces downward, and sewage It can be connected to the underfloor piping connected to the side.
As described in paragraph 0027, a slight downward slope (about 1.2 degrees) for drainage is actually provided in the substantially horizontal portion of the downstream pipe body 6. That is, the substantially horizontal portion of the downstream pipe body 6 is a pipe that extends downward toward the downstream side. Further, the vertical portion of the downstream pipe body 6 is also a pipe that goes downward as it goes downstream.
For this reason, in this second construction example, when the joint member 1 is arranged in a substantially horizontal direction, the downstream pipe body 6 which is a pipe on the downstream side of the joint member 1 is lowered downward in order to perform natural drainage. Piping is going to.

上記のように構成した排水配管を備えた、流し台Ｋ及び電気温水器Ｄが、使用により排水を生じると、生じた排水は、段落００２５に記載した第一の施工事例と同様にして下水側に排出される。   When the sink K and the electric water heater D having the drainage pipe configured as described above generate drainage by use, the generated drainage is discharged to the sewer side in the same manner as in the first construction example described in paragraph 0025. Is discharged.

また、下水側の床下配管から排水が逆流した場合や、排水機器からの排水が大量に生じて、継手部材１の枝管部１ｂ側に排水が逆流（または流入）しようとする場合がある。
しかしながら、この第一実施例の第二の施工事例の縦置きされた継手部材１の内部は、貯留壁２によって、図１４に示したように、枝管部１ｂ内に空気溜まりを形成して逆流した排水が枝管内に侵入することを防止するように構成されてなる。
詳述すると、本発明の継手部材１は、横置きした時、即ち本体部１ａを略水平方向に配置した時に、貯留壁２の下流側端部の最も高い位置が、枝管部１ｂの接続箇所の開口部よりも低い位置となるように構成してなる（継手部材１の本体部１ａと枝管部１ｂとの接続箇所は、継手部材１を横置きした場合、本体部１ａの上端位置となるため、枝管部１ｂと本体部１ａの接続箇所の開口部よりも、貯留壁２の下流側端部の最も高い位置の方が、低い位置となるように構成することは容易である）。
また、枝管部１ｂの端部に、常時は閉塞している逆流防止弁３を備えていることによって、枝管部１ｂから空気が上流側（電気温水器Ｄ側）に抜けることが無い。
このため、継手部材１に関しては、枝管部１ｂ及び枝管部１ｂとの接続箇所を含み本体部１ａの上流側端部を含まない領域の内、更に貯留壁２の下流側端部の最も高い位置よりも高い空間部分に空気溜まりが生じる。
また、下流側配管は、上記のように、自然排水を行うために下流ほど下方に向かう配管が行われている。当然、下流側配管の内側面の内の上面も、下流ほど下方に向かうように形成されているから、貯留壁２の下流側端部の最も高い位置よりも高い空間部分から、空気溜まりの空気が抜け出る部分が無い。
このため、図１４中「Ｃ」で示した領域にて示したように、継手部材１及び下流側配管の、継手部材１の枝管部１ｂとの開口を含み、貯留壁２の下流側端部の最も高い位置よりも上方の空間部分に空気溜まりが生じる。
仮に、下流側配管が下流側ほど上方に向かうように配管されていた場合には、この下流側配管の上方に向かう勾配に沿って、枝管部１ｂ及び枝管部１ｂとの接続箇所を含み本体部１ａの上流側端部を含まない領域にあった空気は下流側に抜けてしまうが、排水配管として、自然排水を行うために下流ほど下方に向かう配管を行う性質上、継手部材１を横置きした場合、継手部材１から下流側配管の、貯留壁２の下流側端部の最も高い位置よりも上方の空間部分には、必ず空気溜まりが発生する。
そして、継手部材１は、本体部１ａを略水平方向に配置した時に、貯留壁２の下流側端部の最も高い位置が、枝管部１ｂとの接続箇所の開口部よりも低い位置となるように構成してなるため、本体部１ａと枝管部１ｂとの開口部は必ずこの空気溜まりの部分に含まれることになり、空気溜まりによって、排水が枝管部１ｂや枝管部１ｂの上流側にある逆流防止弁３の位置まで侵入することが無い。
このため、逆流した排水が、電気温水器の排水トラップＤＴや電気温水器Ｄの貯水タンクなど、給水側の配管に到達することが無いのはもちろん、枝管部１ｂ内の空気溜まりによって逆流防止弁３が排水配管からの排水に触れることも無くなり、逆流防止弁３よりも電気温水器Ｄ側の機器を、極めて衛生的に使用することが可能となった。 Further, there is a case where the drainage flows back from the underfloor piping on the sewage side, or a large amount of drainage occurs from the drainage device, and the drainage tends to flow back (or flow into) the branch pipe portion 1b side of the joint member 1.
However, as shown in FIG. 14, the inside of the vertically placed joint member 1 of the second construction example of the first embodiment forms an air reservoir in the branch pipe portion 1b as shown in FIG. It is configured to prevent the backflow drainage from entering the branch pipe.
More specifically, when the joint member 1 of the present invention is placed horizontally, that is, when the main body portion 1a is arranged in a substantially horizontal direction, the highest position of the downstream end portion of the storage wall 2 is the connection of the branch pipe portion 1b. It is configured such that it is located at a position lower than the opening portion (the connecting portion between the main body portion 1a of the joint member 1 and the branch pipe portion 1b is the upper end position of the main body portion 1a when the joint member 1 is placed horizontally) Therefore, it is easy to configure that the highest position of the downstream end of the storage wall 2 is lower than the opening of the connection portion between the branch pipe portion 1b and the main body portion 1a. ).
In addition, since the check valve 3 that is normally closed is provided at the end of the branch pipe portion 1b, air does not escape from the branch pipe portion 1b to the upstream side (electric water heater D side).
Therefore, regarding the joint member 1, in the region including the branch pipe portion 1b and the connection portion with the branch pipe portion 1b but not including the upstream end portion of the main body portion 1a, the most downstream end portion of the storage wall 2 is included. Air pockets occur in the space higher than the higher position.
In addition, as described above, the downstream side pipe is a pipe that is directed downward toward the downstream side for natural drainage. Naturally, the upper surface of the inner side surface of the downstream side pipe is also formed so as to be directed downward as it goes downstream, so that the air in the air pool is blown from a space portion higher than the highest position of the downstream end portion of the storage wall 2. There is no part that comes out.
Therefore, as shown in the region indicated by “C” in FIG. 14, the downstream end of the storage wall 2 including the opening of the joint member 1 and the downstream pipe with the branch pipe portion 1b of the joint member 1 is included. Air pockets occur in the space above the highest point of the section.
If the downstream pipe is arranged so as to be directed upward toward the downstream side, the branch pipe portion 1b and the connection portion with the branch pipe portion 1b are included along the upward slope of the downstream pipe. The air in the region not including the upstream end of the main body portion 1a escapes to the downstream side, but as the drainage pipe, in order to perform natural drainage, the pipe that goes downward toward the downstream side is used. When placed horizontally, an air trap is always generated in the space portion of the downstream pipe from the joint member 1 above the highest position of the downstream end of the storage wall 2.
Then, in the joint member 1, when the main body portion 1a is arranged in a substantially horizontal direction, the highest position of the downstream end portion of the storage wall 2 is lower than the opening portion of the connection portion with the branch pipe portion 1b. Since it is configured as described above, the openings of the main body portion 1a and the branch pipe portion 1b are always included in this air pool portion, and the drainage of the branch pipe portion 1b and the branch pipe portion 1b is caused by the air pool. It does not enter the position of the check valve 3 on the upstream side.
Therefore, the backflow drainage does not reach the pipes on the water supply side such as the drain trap DT of the electric water heater or the water storage tank of the electric water heater D, and the backflow is prevented by the air pool in the branch pipe portion 1b. Since the valve 3 does not touch the drainage from the drainage pipe, it is possible to use the device on the electric water heater D side of the check valve 3 in an extremely hygienic manner.

本発明の実施例は以上のようであるが、本発明は上記実施例に限定される物ではなく、主旨を変更しない範囲において自由に変更が可能である。
例えば上記実施例においては、第一の排水機器として流し台Ｋを用いているが、本発明は上記実施例に限定されるものでは無く、例えば洗面台など、必要に応じてどのような排水機器に使用しても構わない。
また上記実施例では、枝管配管５を排水機器である電気温水器Ｄに接続し、枝管配管５とそれに接続された枝管部１ｂに排水が流れるように構成したが、実際には上記構成に限定されるものでは無く、電気温水器Ｄの代わりに通気口や吸気弁など、枝管配管５及び枝管部１ｂを空気が通過する機器としてもよい。このように、枝管配管５及び枝管部１ｂを通過するものは流体であれば気体・液体等何でもよく、特に何ら制限が加えられるものでは無い。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments, and can be freely modified within a range not changing the gist.
For example, in the above embodiment, the sink K is used as the first drainage device, but the present invention is not limited to the above embodiment, and any drainage device such as a washbasin may be used as needed. You can use it.
Further, in the above-described embodiment, the branch pipe 5 is connected to the electric water heater D which is a drainage device, and the waste water is configured to flow through the branch pipe 5 and the branch pipe portion 1b connected thereto. The configuration is not limited, and instead of the electric water heater D, a device such as a vent hole or an intake valve through which air passes through the branch pipe 5 and the branch pipe portion 1b may be used. As described above, the fluid passing through the branch pipe 5 and the branch portion 1b may be any fluid such as gas or liquid, and is not particularly limited.

また、上記実施例では、継手部材１の貯留壁２を、筒状の本体部１ａの軸方向に沿って本体部１ａの内面に接続するように構成してなるが、本発明は上記実施例に限定されるものではなく、図１５乃至図１９に示した継手部材１のように、貯留壁２を略漏斗形状を成し、貯留壁２の上流側端部が、継手部材１の、筒状の本体部１ａの内面に全周に渡って接続するように構成しても良い。
この場合でも、継手部材１を縦置きに配管した場合は図１６及び図１７に示したようにして、継手部材１を横置きに配管した場合は図１８乃至図１９に示したようにして、逆流が発生した場合に空気溜まりを形成し、空気溜まりによって、排水が枝管部１ｂや枝管部１ｂの上流側にある逆流防止弁３の位置まで侵入することを防止することができる。 Further, in the above-described embodiment, the storage wall 2 of the joint member 1 is configured to be connected to the inner surface of the main body portion 1a along the axial direction of the tubular main body portion 1a. However, like the joint member 1 shown in FIGS. 15 to 19, the storage wall 2 has a substantially funnel shape, and the upstream end of the storage wall 2 is a tube of the joint member 1. It may be configured so as to be connected to the inner surface of the main body 1a in a circular shape over the entire circumference.
Even in this case, when the joint member 1 is vertically installed, as shown in FIGS. 16 and 17, and when the joint member 1 is horizontally installed, as shown in FIGS. 18 to 19, When a backflow occurs, an air pool is formed, and the air pool can prevent drainage from entering the branch pipe portion 1b or the position of the check valve 3 on the upstream side of the branch pipe portion 1b.

また、上記第一実施例や図１５の実施例では、継手部材１の本体部１ａと貯留壁２を一体の部材として構成してなるが、本発明は上記実施例に限定されるものでは無く、本体部１ａと貯留壁２を別々の部材とし、嵌合接続その他の方法で水密的に接続するように構成しても構わない。   Further, in the first embodiment and the embodiment of FIG. 15, the main body portion 1a of the joint member 1 and the storage wall 2 are configured as an integral member, but the present invention is not limited to the above embodiment. The main body 1a and the storage wall 2 may be separate members, and may be configured to be watertightly connected by fitting connection or other method.

尚、「貯留壁２の下流側の開放位置」について、上記第一実施例のように、円筒を成す本体部１ａの軸に対して垂直な面によって貯留壁２の下端が形成される場合は、貯留壁２の下流側端部の全体が「最も上流側に近い下流側の端部」としたが、これは貯留壁２の下流側端部の形状によってはまちまちに変化する。例えば、図２０に示した実施例のように、貯留壁２の下端が傾斜面等によって形成される場合は、貯留壁２の下流側の端部の内、最も上流側に近い下流側の端部である、図２０中の点Ｄで示される位置が貯留壁２の下流側の開放位置である。   Regarding the "open position on the downstream side of the storage wall 2", when the lower end of the storage wall 2 is formed by a surface perpendicular to the axis of the main body 1a forming the cylinder as in the first embodiment, Although the entire downstream end of the storage wall 2 is referred to as the “downstream end closest to the upstream side”, this varies depending on the shape of the downstream end of the storage wall 2. For example, as in the embodiment shown in FIG. 20, when the lower end of the storage wall 2 is formed by an inclined surface or the like, among the downstream end portions of the storage wall 2, the downstream end closest to the upstream side. The position indicated by a point D in FIG. 20, which is a portion, is the downstream open position of the storage wall 2.

１ 継手部材 １ａ 本体部
１ｂ 枝管部 ２ 貯留壁
２ａ 板状部分 ２ｂ 扇状部分
３ 逆流防止弁 ４ 上流側管体
５ 枝管配管 ６ 下流側管体
Ｄ 電気温水器 ＤＴ 電気温水器の排水トラップ
Ｋ 流し台 ＫＴ 流し台の排水トラップ
Ｗ 逆流時の排水の水面 DESCRIPTION OF SYMBOLS 1 Joint member 1a Main body part 1b Branch pipe part 2 Storage wall 2a Plate part 2b Fan-shaped part 3 Backflow prevention valve 4 Upstream side pipe body 5 Branch pipe pipe 6 Downstream side pipe D Electric water heater DT Electric water heater drain trap K Sink KT Drain trap of sink W Water surface of drainage when backflowing

Claims (8)

排水機器からの排水を処理する、排水機器の配管構造であって、
排水機器と、
排水機器の排水を排出する排水主管と、
流体が通過する枝管配管と、
上流側の端部は排水主管に、下流側の端部は下水側の配管に、それぞれ接続され、また枝管配管に接続される略水平方向に配置される枝管部を備えた継手部材と、
枝管配管から継手部材の枝管部上までの配管内に備えられた、常時は閉塞し、枝管配管側から枝管側への流体の移動が生じた場合のみ開口して流体の通過を許容する逆流防止弁と、
からなる排水機器の配管構造において、
継手部材の内部に、
本体部の内側面に備えられてなり、
上流側端部は枝管部の本体部との接続個所の開口よりも上流側の位置で本体部の内側面に接続され、
下流側端部は枝管部の本体部との接続個所の開口よりも下流側にて開放され、
本体部内を、下流側の開放位置までにおいて、
枝管部との接続箇所を含み本体部の上流側端部を含まない領域と、
本体部の上流側との接続箇所を含み枝管部との接続箇所を含まない領域とに区画すると共に、
本体部と枝管部を略水平方向に配置した時に、下流側端部の最も高い位置が、枝管部との接続箇所の開口部よりも低い位置となる貯留壁を備えたことを特徴とする、排水機器の配管構造。 A drainage piping structure for treating wastewater from drainage equipment,
Drainage equipment,
A drainage main pipe that discharges the drainage of drainage equipment,
A branch pipe through which the fluid passes,
The upstream end is connected to the drain main pipe, the downstream end is connected to the sewer pipe, respectively, and a joint member provided with a branch pipe portion arranged in a substantially horizontal direction connected to the branch pipe ,
Provided in the pipe from the branch pipe to the branch pipe of the joint member, it is normally closed, and opens only when the fluid moves from the branch pipe side to the branch pipe side to allow passage of the fluid. Allowable check valve and
In the piping structure of drainage equipment consisting of
Inside the joint member,
It is equipped on the inner surface of the main body,
The upstream end is connected to the inner side surface of the main body portion at a position upstream of the opening of the connection portion with the main body portion of the branch pipe portion,
The downstream end is opened on the downstream side of the opening at the connection point with the main body of the branch pipe section,
Inside the body, up to the downstream open position,
A region that includes a connection portion with the branch pipe portion and does not include the upstream end portion of the main body portion,
While partitioning into a region that includes the connection part with the upstream side of the main body part and does not include the connection part with the branch pipe part,
When the main body part and the branch pipe part are arranged in a substantially horizontal direction, the highest position of the downstream side end part is provided with a storage wall which is lower than the opening part of the connection part with the branch pipe part. Plumbing structure for drainage equipment. 上記排水機器の配管構造において、
枝管配管が排水主管に接続される排水機器とは別の排水機器の配管であって、更に枝管配管上に排水トラップを備えたことを特徴とする、請求項１に記載の排水機器の配管構造。 In the piping structure of the drainage device,
2. The drainage device according to claim 1, wherein the branch pipe is a pipe of a drainage device different from the drainage device connected to the drainage main pipe, and a drainage trap is further provided on the branch pipe. Piping structure. 上記排水機器の配管構造において、
枝管配管に接続される排水機器が、排水機器としての電気温水器であることを特徴とする、請求項１または請求項２に記載の排水機器の配管構造。 In the piping structure of the drainage device,
The drainage device connected to the branch pipe is an electric water heater as a drainage device, and the pipe structure for the drainage device according to claim 1 or 2. 上記排水機器の配管構造において、
上記貯留壁が、筒状の本体部の軸方向に沿って本体部の内面に接続することを特徴とする、請求項１乃至請求項３のいずれか一つに記載の排水機器の配管構造。 In the piping structure of the drainage device,
The piping structure of the drainage device according to any one of claims 1 to 3, wherein the storage wall is connected to an inner surface of the main body along the axial direction of the tubular main body. 上記排水機器の配管構造において、
上記貯留壁が略漏斗形状を成し、貯留壁の上流側端部が、継手部材の、筒状の本体部の内面に全周に渡って接続されてなることを特徴とする、請求項１乃至請求項３のいずれか一つに記載の排水機器の配管構造。 In the piping structure of the drainage device,
The storage wall has a substantially funnel shape, and an upstream end of the storage wall is connected to the inner surface of the tubular main body of the joint member over the entire circumference. The piping structure of the drainage device according to claim 3. 上記貯留壁は、継手部材の本体部及び枝管部からなる他の部分とは別体に構成したことを特徴とする、請求項１乃至請求項５のいずれか一つに記載の排水機器の配管構造。 The drainage device according to any one of claims 1 to 5, wherein the storage wall is configured separately from the other part including the main body part and the branch pipe part of the joint member. Piping structure. 上記枝管部は、本体部を略水平方向に配置した時に、本体部の中心軸よりも上方の位置で、継手部材の本体部と接続することを特徴とする、請求項１乃至請求項６のいずれか一つに記載の排水機器の配管構造。   7. The branch pipe portion is connected to the main body portion of the joint member at a position above the central axis of the main body portion when the main body portion is arranged in a substantially horizontal direction. The piping structure of the drainage device according to any one of 1. 上記排水機器の配管構造において、継手部材を略水平方向に配置したとき、少なくとも継手部材よりも下流側の配管は、自然排水を行うために下流ほど下方に向かう配管が行われていることを特徴とする、請求項１乃至請求項７のいずれか一つに記載の排水機器の配管構造。   In the piping structure of the drainage device, when the joint member is arranged in a substantially horizontal direction, at least the pipe on the downstream side of the joint member is a pipe that is directed downward toward the downstream side for natural drainage. The pipe structure of the drainage device according to any one of claims 1 to 7.
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