JP2016114179A - Joint with vent valve - Google Patents

Joint with vent valve Download PDF

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Publication number
JP2016114179A
JP2016114179A JP2014254045A JP2014254045A JP2016114179A JP 2016114179 A JP2016114179 A JP 2016114179A JP 2014254045 A JP2014254045 A JP 2014254045A JP 2014254045 A JP2014254045 A JP 2014254045A JP 2016114179 A JP2016114179 A JP 2016114179A
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connection
main pipe
connection port
drainage
joint
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JP6415961B2 (en
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中村　敦
Atsushi Nakamura
敦 中村
翔平 松田
Shohei Matsuda
翔平 松田
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Mirai Industry Co Ltd
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Mirai Industry Co Ltd
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  • Branch Pipes, Bends, And The Like (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Valve Housings (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Sink And Installation For Waste Water (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a joint with a vent valve that can be easily assembled into a drain path.SOLUTION: A recess part 53 is formed at a connecting margin 52 for a trap end part T1 of a first connection port 5 of a main pipe part 2 constituting a drain passage D at a joint 1 with a vent valve assembled into the drain passage D. When the main pipe part 2 is turned along a direction extending along the drain passage D and inserted into a cutting location L while a connecting margin 61 of a second connecting port 6 is applying over a drain pipe end part P1, a contact between the connecting margin 52 and the trap end part T1 is avoided by the recess part 53, so that it becomes possible to insert the main pipe part 2 smoothly to the cutting location L and it is possible to assemble easily the joint 1 with the vent valve to the drain passage D.SELECTED DRAWING: Figure 5

Description

本発明は、住宅等の建物に設けられた台所の流し台、浴槽、トイレ等に接続された排水管、またはそれらの排水管に取り付けられる排水トラップを含む排水経路に設置されて、当該排水経路内に負圧が発生した際に当該排水経路内に外気を通気させて負圧を解消する通気弁付継手に関するものである。   The present invention is installed in a drainage path including a drainage pipe connected to a kitchen sink, a bathtub, a toilet, etc. provided in a building such as a house, or a drainage trap attached to the drainage pipe. The present invention relates to a joint with a vent valve that eliminates negative pressure by venting outside air into the drainage passage when negative pressure is generated.

同様の通気弁付継手として特許文献１のような通気弁付継手（排水用通気弁）が提案されている。   As a similar joint with a vent valve, a joint with a vent valve (a vent valve for drainage) as in Patent Document 1 has been proposed.

特許文献１に記載された通気弁付継手（排水用通気弁）は、特許文献１の図３に示すように排水トラップ（トラップ部T）の下流の排水管Ｐ１ｂに負圧が発生したとき、弁体４がスライドして通気口５を開放し、排水管Ｐ１内に通気を行い負圧を解消し、トラップ部Ｔ内の封水が下流に引っ張られ排水されてしまうことを防止するものである。   When a negative pressure is generated in the drain pipe P1b downstream of the drain trap (trap portion T) as shown in FIG. The valve body 4 slides to open the vent hole 5, vents the drain pipe P1 to eliminate the negative pressure, and prevents the sealed water in the trap portion T from being pulled downstream and drained. is there.

特開２０１１−１９６４９９号公報JP2011-196499A

ところが、この特許文献１の通気弁付継手は、特許文献１の図３（ａ）に示されるように、排水経路としての鉛直方向の排水管Ｐ１が排水管Ｐ１ａとＰ１ｂとに分断された分断箇所に本管部１を差し入れて排水経路に組み込むものであるが、分断長を長く取ると本管部１の両端に対する排水管Ｐ１ａ及びＰ１ｂの端部の挿し込みがそれぞれ短くなって組込みが不安定になるので、分断長はなるべく短くせねばならない。ところが、分断長を排水管Ｐ１ａ及びＰ１ｂの両端部を本管部１の両端にそれぞれ充分に挿し込めるまで短くすると、本管部１の差し入れ時に通気弁付継手の本管部１の両端と排水管Ｐ１ａ及びＰ１ｂの端部とが接触し、本管部１の分断箇所への差し入れが円滑にいかず、その結果、通気弁付継手が排水経路に組み込みにくいという問題が生じてしまっていた。なお、特許文献１の図３（ｂ）に示すように水平方向の排水管Ｐ２の分断箇所に差し入れる場合も同様の問題が生じてしまっている。   However, the joint with a vent valve of Patent Document 1 is divided as shown in FIG. 3A of Patent Document 1 in which a vertical drain pipe P1 as a drain path is divided into drain pipes P1a and P1b. The main pipe part 1 is inserted into the drainage path and incorporated into the drainage route. However, if the cut length is increased, the insertion of the ends of the drainage pipes P1a and P1b into both ends of the main pipe part 1 will be shortened and the incorporation will not be possible. To be stable, the split length must be as short as possible. However, if the dividing length is shortened until both ends of the drain pipes P1a and P1b are sufficiently inserted into both ends of the main pipe section 1, both ends of the main pipe section 1 of the joint with a vent valve and the drainage when the main pipe section 1 is inserted. The ends of the pipes P1a and P1b are in contact with each other, and the main pipe part 1 cannot be smoothly inserted into the parted portion. As a result, there is a problem that it is difficult to incorporate the joint with a vent valve into the drainage path. In addition, as shown in FIG.3 (b) of patent document 1, when inserting in the parting part of the horizontal drain pipe P2, the same problem has arisen.

本発明は、このような従来の問題点を解決するためになされたものであり、排水経路に容易に組込み可能な通気弁付継手を提供することにある。   The present invention has been made to solve such conventional problems, and it is an object of the present invention to provide a joint with a vent valve that can be easily incorporated into a drainage passage.

上記問題を解決するために、請求項１記載の発明に係る通気弁付継手は、排水が通る本管部と、当該本管部から分岐した通気路と、当該通気路に設けられて前記本管部への通気を制御する弁体と、を備え、前記本管部が建物の排水経路に組み込まれて当該排水経路への通気を行う通気弁付継手であって、前記本管部は、その両端に接続口がそれぞれ形成され、前記各接続口には、それぞれの接続対象の端部に挿し込まれる或いは覆いかぶさる接続代がそれぞれ形成されるとともに、前記各接続口の内、一方の接続口の前記接続代には、周壁の一部をその端面から前記本管部の軸方向に凹むように切り欠くことで、凹部が形成されて、当該凹部は、分断された両側が前記各接続口が接続される接続対象の端部となった前記排水経路の分断箇所において前記本管部を他方の前記接続口の前記接続代からその接続対象の端部に挿し込み或いは覆いかぶせつつ前記排水経路に沿う方向に回動させる際に、前記一方の接続口の接続代とその接続対象の端部との接触を回避することで前記本管部を前記分断箇所に前記排水経路に沿う方向に差し入れ可能に形成されている。   In order to solve the above-mentioned problem, the joint with a vent valve according to the first aspect of the present invention includes a main pipe portion through which drainage passes, a vent passage branched from the main pipe portion, and the main passage provided in the vent passage. A valve body that controls ventilation to the pipe part, and the main pipe part is a joint with a ventilation valve that is incorporated into a drainage path of a building to ventilate the drainage path, and the main pipe part is Connection ports are respectively formed at both ends thereof, and each connection port is formed with a connection allowance to be inserted or covered with each connection target end, and one of the connection ports is connected to each other. In the connection allowance of the mouth, a recess is formed by cutting out a part of the peripheral wall so as to be recessed in the axial direction of the main pipe portion from the end surface thereof. At the cut-off point of the drainage path that is the end of the connection target to which the mouth is connected When the main pipe portion is rotated in the direction along the drainage path while being inserted or covered from the connection margin of the other connection port to the end of the connection target, the connection margin of the one connection port The main pipe portion is formed so as to be able to be inserted in the direction along the drainage path at the dividing portion by avoiding contact with the connection target end.

請求項２に記載の発明に係る通気弁付継手は、請求項１に記載の通気弁付継手において、前記凹部は、前記一方の接続口の周壁において、前記通気路が設けられた側から前記本管部の軸を挟んだ反対の側に形成されている。   The joint with a vent valve according to a second aspect of the present invention is the joint with a vent valve according to the first aspect, wherein the recess is formed on the peripheral wall of the one connection port from the side where the vent path is provided. It is formed on the opposite side across the axis of the main pipe part.

請求項３に記載の発明に係る通気弁付継手は、請求項２に記載の通気弁付継手において、前記通気路は、前記本管部に対し鋭角を成すように当該本管部から分岐するとともに、前記凹部は、前記本管部の両端に形成された前記各接続口の内、前記通気路の先端が配置された側に形成された接続口の前記接続代に形成されている。   A joint with a vent valve according to a third aspect of the present invention is the joint with a vent valve according to the second aspect, wherein the vent passage branches off from the main pipe portion so as to form an acute angle with respect to the main pipe portion. At the same time, the recess is formed at the connection allowance of the connection port formed on the side where the tip of the air passage is disposed, among the connection ports formed at both ends of the main pipe portion.

請求項４に記載の発明に係る通気弁付継手は、請求項１〜３のいずれか一項に記載の通気弁付継手において、前記本管部は、前記凹部が形成された接続口の当該凹部よりも軸方向中央側に止水パッキンを備えている。   The joint with a vent valve according to a fourth aspect of the present invention is the joint with a vent valve according to any one of the first to third aspects, wherein the main pipe portion is the connection port in which the concave portion is formed. The water stop packing is provided in the axial direction center side rather than the recessed part.

本発明によれば、通気弁付継手の本管部を、排水経路の分断箇所に差し入れる際、本管部に形成される一方の接続口とその接続対象との接触を避けて分断箇所に円滑に差し入れ可能とすることで、通気弁付継手を排水経路に容易に組み込むことができる。   According to the present invention, when inserting the main pipe part of the joint with a vent valve into the cut-off part of the drainage passage, avoid contact with one connection port formed in the main pipe part and its connection target at the cut-off part. By enabling smooth insertion, the joint with a vent valve can be easily incorporated into the drainage passage.

第１の実施形態の通気弁付継手を排水経路に組み込んだ状態を示す正面図。The front view which shows the state which integrated the coupling with a ventilation valve of 1st Embodiment in the drainage path. 第１の実施形態の通気弁付継手の継手本体の、（A）平面図、（Ｂ）正面図、（Ｃ）右側面図。The (A) top view, (B) front view, (C) right view of the coupling main body of the coupling with a vent valve of a 1st embodiment. 第１の実施形態の通気弁付継手の継手本体の斜視図。The perspective view of the joint main body of the joint with a vent valve of a 1st embodiment. 第１の実施形態の通気弁付継手の分解斜視図。The disassembled perspective view of the joint with a vent valve of a 1st embodiment. 第１の実施形態の通気弁付継手の本管部を排水経路の分断箇所に差し入れる際の正面図。The front view at the time of inserting the main pipe part of the joint with a vent valve of a 1st embodiment in the parting part of a drainage way. 第１の実施形態の通気弁付継手の本管部を排水経路の分断箇所に差し入れた後、固定部材で固定する際の正面図。The front view at the time of fixing with the fixing member, after inserting the main pipe part of the joint with a vent valve of a 1st embodiment in the parting part of a drainage way. 第１の実施形態の通気弁付継手の排水経路への組込み状態で、かつ弁体が閉じた状態の断面図。Sectional drawing of the state in which the valve body was closed in the state in which the coupling with a vent valve of the first embodiment is incorporated into the drainage path. 第１の実施形態の通気弁付継手の排水経路への組込み状態で、かつ弁体が開いた状態の断面図。Sectional drawing of the state in which the valve body was opened in the state in which the coupling with a vent valve of the first embodiment is incorporated in the drainage path.

（第１の実施形態）
以下、本発明を具体化した第１の実施形態を図１〜図８にしたがって説明する。
図１に示すように、第１の実施形態の通気弁付継手１は、合成樹脂により形成されて、住宅の台所を構成する流し台Ｓに接続されたトラップＴと排水管Ｐとの間に組み込まれて、本管部２がトラップＴと排水管Ｐとともに破線矢印に示す流し台Ｓからの排水経路Ｄの一部を構成するものである。この通気弁付継手１は、流し台Ｓからの排水の流れる本管部２と、この本管部２の軸方向に対し４５°の角度で分岐した通気路３と、を備えている。この通気路３は、内部が本管部２の内部に連通し、通気管部３１とその先端に組みつけられた後述する弁体３４を収容した弁体収容体３３とを備え、この弁体３４の開閉によって本管部２を含む排水経路Ｄ内への通気を行うことができる。具体的には、通気弁付継手１は、排水経路Ｄ内が負圧になると弁体３４が開かれて通気管部３１を介して連通する本管部２を含む排水経路Ｄ内へ通気が行われ、排水経路Ｄ内の負圧を解消することができる。従って、通気弁付継手１は、排水経路Ｄ内が負圧になることによってトラップＳ内の封水が下流に引っ張られ排水されてしまうことを防いでいる。 (First embodiment)
A first embodiment of the present invention will be described below with reference to FIGS.
As shown in FIG. 1, the joint 1 with a vent valve according to the first embodiment is formed between a trap T and a drain pipe P which are formed of a synthetic resin and connected to a sink S constituting a kitchen of a house. Thus, the main pipe part 2 constitutes a part of the drainage path D from the sink S shown by the broken line arrow together with the trap T and the drainage pipe P. This joint 1 with a vent valve includes a main pipe portion 2 through which drainage from the sink S flows, and a vent passage 3 branched at an angle of 45 ° with respect to the axial direction of the main pipe portion 2. The ventilation path 3 is provided with a valve body containing body 33 that houses the inside of the main pipe section 2 and accommodates a vent pipe section 31 and a valve body 34 to be described later assembled at the tip thereof. By opening and closing 34, ventilation into the drainage path D including the main pipe section 2 can be performed. Specifically, in the joint 1 with a vent valve, when the inside of the drainage path D becomes negative pressure, the valve body 34 is opened and air is vented into the drainage path D including the main pipe part 2 communicating through the vent pipe part 31. The negative pressure in the drainage path D can be eliminated. Therefore, the joint 1 with the vent valve prevents the sealed water in the trap S from being pulled downstream and drained due to the negative pressure in the drainage path D.

続いて、通気弁付継手１をより詳細に説明する。
図２及び図３に示す通気弁付継手１の継手本体１１には、内部に排水が通る本管部２と、内部に本管部２に通気される外気が通る通気管部３１とが形成され、互いに内部が連通するように形成されている。また、本管部２は、その軸方向両端に第一接続口５（一方の接続口）及び第二接続口６（他方の接続口）が形成され、第一接続口５が本管部２に対して鋭角（４５°）を成して分岐して形成された通気路３の先端が配置された側に形成された接続口となっている。排水経路Ｄの分断箇所Ｌにはその両側にそれぞれの接続口（第一接続口５及び第二接続口６）が接続される接続対象（トラップＴ及び排水管Ｐ）の端部（トラップ端部Ｔ１及び排水管端部Ｐ１）がそれぞれ位置し（図５参照）、具体的には、第一接続口５はトラップＴと接続され、第二接続口６は排水管Ｐと接続される。第一接続口５は、その周壁５１の端面から本管部２の軸方向に所定長の範囲がトラップ端部Ｔ１内に挿入される接続代５２を構成するとともに、第一接続口５の接続代５２にのみ、その周壁５１の一部（平面視で７０°の範囲）をその端面から本管部２の軸方向に凹むように切り欠くことで凹部５３が形成されている。更に言えば、凹部５３は第一接続口５の周壁５１において、通気路３が設けられた側から本管部２の軸を挟んだ反対の側に設けられている。 Subsequently, the vent valve-equipped joint 1 will be described in more detail.
2 and 3, a main pipe portion 2 through which drainage passes and a vent pipe portion 31 through which outside air vented to the main pipe portion 2 passes are formed. And are formed so as to communicate with each other. Further, the main pipe part 2 is formed with a first connection port 5 (one connection port) and a second connection port 6 (the other connection port) at both axial ends, and the first connection port 5 is connected to the main pipe part 2. It is a connection port formed on the side where the tip of the air passage 3 formed by branching at an acute angle (45 °) with respect to. End portions (trap end portions) of connection objects (trap T and drain pipe P) to which the respective connection ports (first connection port 5 and second connection port 6) are connected to both sides of the dividing portion L of the drainage path D T1 and drain pipe end portion P1) are located respectively (see FIG. 5). Specifically, the first connection port 5 is connected to the trap T, and the second connection port 6 is connected to the drain pipe P. The first connection port 5 constitutes a connection allowance 52 in which a range of a predetermined length from the end surface of the peripheral wall 51 in the axial direction of the main pipe portion 2 is inserted into the trap end portion T1, and the connection of the first connection port 5 Only in the margin 52, a recess 53 is formed by cutting out a part of the peripheral wall 51 (in a range of 70 ° in plan view) so as to be recessed in the axial direction of the main pipe portion 2 from the end face. Furthermore, the recess 53 is provided on the opposite side of the peripheral wall 51 of the first connection port 5 from the side where the air passage 3 is provided, with the axis of the main pipe portion 2 interposed therebetween.

また、この凹部５３よりも軸方向中央側には、後述するストップリング７と係合することでストップリング７の本管部２軸方向の移動を防止する係合溝５４が、本管部２の周方向全周に亘って形成されている。さらに、第二接続口６には、その接続対象の端部である排水管端部Ｐ１に覆いかぶさる接続代６１が形成され、その外周には後述するソケット状の第二接続口用固定部材Ｎのねじ山と螺合するねじ山が形成されている。また、通気管部３１の先端には弁体収容体３３と螺合するねじ山からなる収容体接続部３２が形成されている。   Further, an engagement groove 54 that prevents the movement of the stop ring 7 in the axial direction of the main pipe portion 2 by engaging with a stop ring 7 to be described later is provided on the central side in the axial direction from the concave portion 53. It is formed over the entire circumferential direction. Further, a connection allowance 61 is formed in the second connection port 6 so as to cover the drain pipe end P1 which is an end of the connection target, and a socket-like second connection port fixing member N which will be described later is formed on the outer periphery thereof. A screw thread is formed to be screwed with the screw thread. In addition, a container connecting portion 32 made of a screw thread that is screwed with the valve body container 33 is formed at the tip of the vent pipe portion 31.

図４に示すように、通気弁付継手１は、トラップ端部Ｔ１の外周のねじ山に螺合するねじ山を備えたソケット状の固定部材４が、継手本体１１の本管部２の第一接続口５側から軸方向に摺動自在に遊嵌された後、ストップリング７を係合溝５４に係合させて固定部材４の第一接続口５側からの抜け出しを規制する。なお、ストップリング７は、その内径が本管部２の外径よりも小径であって係合溝５４部分の外形よりも僅かに大径に形成され、リング状の一部が切り欠かれたスリット７１によって内径を押し広げられて係合溝５４に係合させられる。さらに、止水パッキン８が第一接続口５側から本管部２の軸方向に嵌入れされ、その先端が凹部５３の底よりも本管部２の軸方向中央側に配置される（図５参照）。ここで、ストップリング７は、止水パッキン８の後端と当接して止水パッキン８の本管部２の軸方向中央側への過度の入り込みも防止する。そして、通気管部３１の先端の収容体取付部３２に弁体収容体３３が螺合されて、第１の実施形態の通気弁付継手１が完成する。   As shown in FIG. 4, in the joint 1 with a vent valve, a socket-like fixing member 4 provided with a thread that engages with a thread on the outer periphery of the trap end T <b> 1 is connected to the main pipe portion 2 of the joint body 11. After loosely slidably fitting in the axial direction from the one connection port 5 side, the stop ring 7 is engaged with the engagement groove 54 to restrict the fixing member 4 from coming out from the first connection port 5 side. The stop ring 7 has an inner diameter smaller than the outer diameter of the main pipe portion 2 and slightly larger than the outer shape of the engaging groove 54 portion, and a ring-shaped part is cut away. The inner diameter is pushed wide by the slit 71 and engaged with the engagement groove 54. Furthermore, the water-stop packing 8 is fitted in the axial direction of the main pipe part 2 from the first connection port 5 side, and the tip thereof is arranged on the axial center side of the main pipe part 2 from the bottom of the recess 53 (see FIG. 5). Here, the stop ring 7 abuts against the rear end of the water-stopping packing 8 and prevents excessive penetration of the water-stopping packing 8 toward the axially central side of the main pipe portion 2. And the valve body accommodating body 33 is screwed by the accommodating body attaching part 32 of the front-end | tip of the vent pipe part 31, and the coupling 1 with a vent valve of 1st Embodiment is completed.

次に、この通気弁付継手１を排水経路Ｄに組み込む方法について説明する。
まず、図５に示すように、通気弁付継手１においては、固定部材４を、第一接続口５の接続代５２が露出する程度に本管部２の軸方向中央側に移動させておく。一方で、トラップＴと排水管Ｐとは、トラップ端部Ｔ１に対し排水管端部Ｐ１を、予め分断長Ｌ１だけ離間させて配管して本管部２を差し入れる分断箇所Ｌを形成しておくか、あるいは、既に排水管ＰがトラップＴに接続されていた場合には、その接続を解除して分断長Ｌ１だけ排水管Ｐを切断し分断箇所Ｌを形成する。そして、排水管端部Ｐ１には排水管用止水パッキンＰ２を嵌着させておく。 Next, a method for incorporating this vent valve-equipped joint 1 into the drainage path D will be described.
First, as shown in FIG. 5, in the joint 1 with a vent valve, the fixing member 4 is moved to the axially central side of the main pipe portion 2 so that the connection allowance 52 of the first connection port 5 is exposed. . On the other hand, the trap T and the drainage pipe P form a cut-off portion L into which the main pipe portion 2 is inserted by piping the drainage pipe end portion P1 apart from the trap end portion T1 by a separation length L1 in advance. Alternatively, if the drain pipe P has already been connected to the trap T, the connection is canceled and the drain pipe P is cut by the cut length L1 to form the cut portion L. And the drain pipe water stop packing P2 is fitted to the drain pipe end P1.

このように、通気弁付継手１を排水経路Ｄに組み込む準備ができたら、本管部２を第二接続口６から分断箇所Ｌに差し入れていく。より詳細には、通気弁付継手１の本管部２の軸を排水管Ｐの軸に対して斜めに傾けた状態にして、第二接続口６の接続代６１を排水管端部Ｐ１に斜め上方からある程度覆いかぶせたら、さらに覆いかぶせつつ、本管部２を、図５に示した円弧を描く矢印のように排水経路Ｄに沿う方向（この場合、本管部２の軸が排水管Ｐの軸に沿う方向）に第二接続口６を支点に回動させて、本管部２を排水経路Ｄの分断箇所Ｌに差し入れていく。このように、本管部２を回動させていくと、第二接続口６の接続代６１は徐々に深く排水管端部Ｐ１に覆いかぶさっていくとともに、第一接続口５がトラップ端部Ｔ１に近接していく。   As described above, when preparation for incorporating the vent valve-equipped joint 1 into the drainage path D is completed, the main pipe portion 2 is inserted into the dividing portion L from the second connection port 6. More specifically, the connection pipe 61 of the second connection port 6 is connected to the drain pipe end P1 with the axis of the main pipe section 2 of the joint 1 with the vent valve being inclined with respect to the axis of the drain pipe P. When covering from a diagonally upper side to some extent, cover the main pipe part 2 in a direction along the drainage path D as shown by the arrow drawing the arc shown in FIG. 5 (in this case, the axis of the main pipe part 2 is the drain pipe). The second connection port 6 is rotated around the fulcrum in the direction along the axis of P), and the main pipe portion 2 is inserted into the divided portion L of the drainage path D. Thus, when the main pipe part 2 is rotated, the connection allowance 61 of the second connection port 6 gradually covers the drain pipe end part P1 and the first connection port 5 becomes the trap end part. Proximity to T1.

その際、トラップ端部Ｔ１に近接した第一接続口５の接続代５２は、図５の範囲ａ拡大図に示すように、その凹部５３によってトラップ端部Ｔ１との接触、すなわち接続対象の端部との接触を回避するため、本管部２は、図６に示すように排水経路Ｄに沿う方向に回動させて分断箇所Ｌに円滑に差し入れることができる。より詳しく説明すると、本実施形態において、分断長Ｌ１は、本管部２の長手方向の長さ未満の長さであって、更に言えば、第一接続口５に凹部５３が形成されていなければ、第二接続口６の接続代６１を覆いかぶせつつ第二接続口６を支点にして、本管部２を排水経路Ｄに沿う方向に回動させると、第一接続口５の接続代５２の周壁５１がトラップ端部Ｔ１と接触してしまい本管部２を排水経路Ｄに沿うまで回動させることができず、本管部２を排水経路Ｄの分断箇所Ｌに円滑に差し入れることができない長さであるが、凹部５３として凹んだ空間が、本管部２を回動させて接続代５２をトラップ端部Ｔ１に近づけた際に凹部５３が無い場合にトラップ端部Ｔ１の接触する筈だった部分を通過させることで接続代５１とトラップ端部Ｔ１とが接触しなくなり、本管部２が排水経路Ｄと沿う方向まで回動できて本管部２を分断箇所Ｌに円滑に差し入れることが可能な長さである。   At that time, the connection allowance 52 of the first connection port 5 adjacent to the trap end T1 is brought into contact with the trap end T1 by the recess 53, that is, the end of the connection target, as shown in the enlarged view of the range a of FIG. In order to avoid contact with the part, the main pipe part 2 can be smoothly inserted into the dividing portion L by rotating in the direction along the drainage path D as shown in FIG. More specifically, in the present embodiment, the dividing length L1 is less than the length of the main pipe portion 2 in the longitudinal direction, and more specifically, the concave portion 53 must be formed in the first connection port 5. For example, when the main pipe part 2 is rotated in the direction along the drainage path D with the second connection port 6 as a fulcrum while covering the connection allowance 61 of the second connection port 6, the connection allowance of the first connection port 5 Since the peripheral wall 51 of 52 is in contact with the trap end T1 and the main pipe part 2 cannot be rotated along the drainage path D, the main pipe part 2 is smoothly inserted into the dividing portion L of the drainage path D. Although the length of the trap end portion T1 is not long enough, the space recessed as the recess portion 53 is formed in the trap end portion T1 when there is no recess portion 53 when the main pipe portion 2 is rotated to bring the connection allowance 52 close to the trap end portion T1. By passing the part that should have been in contact, the connection allowance 51 and the trap end T1 Longer contact, a main tube 2 is rotated can be main tube 2 a divide portion capable of smoothly insert length L to the direction along the drainage path D.

通気弁付継手１をその本管部２が排水経路Ｄに沿う方向に分断箇所Ｌに差し入れられたら、図６に示すように、本管部２を軸方向に沿って移動して接続代５２をトラップ端部Ｔ１内に挿入し、止水パッキン８をトラップ端部Ｔ１の端面に押し付けるようにした状態で固定部材４とトラップ端部Ｔ１とを螺合させて、第一接続口５をトラップＴに固定する。すると、図７に示すように、第一接続口５は、止水パッキン８がトラップ端部Ｔ１に密着するとともにストップリング７とで本管部２の軸方向に若干圧縮されて変形した状態でトラップＴに接続される。続いて、第二接続口用固定部材Ｎを第二接続口６に螺合させることで第二接続口６を排水管Ｐに固定すると、通気弁付継手１の排水経路Ｄへの組込みが完了する。その際、第二接続口６の接続代６１は、第一接続口５の接続代５２のトラップ端部Ｔ１への挿入前に比べ、接続代５２をトラップ端部Ｔ１への挿入した分だけ排水管端部Ｐ１へのかぶさりが浅くなるが、それでも通気弁付継手１の排水経路Ｄへの安定した組付けに充分な長さが覆いかぶさっている。   When the main pipe portion 2 of the joint with a vent valve 1 is inserted into the dividing portion L in the direction along the drainage path D, the main pipe portion 2 is moved along the axial direction as shown in FIG. Is inserted into the trap end portion T1, and the fixing member 4 and the trap end portion T1 are screwed together in a state where the water stop packing 8 is pressed against the end face of the trap end portion T1, and the first connection port 5 is trapped. Fix to T. Then, as shown in FIG. 7, the first connection port 5 is in a state where the water stop packing 8 is in close contact with the trap end T <b> 1 and is slightly compressed and deformed in the axial direction of the main pipe 2 with the stop ring 7. Connected to trap T. Subsequently, when the second connection port 6 is fixed to the drain pipe P by screwing the second connection port fixing member N to the second connection port 6, the incorporation of the vent valve joint 1 into the drainage path D is completed. To do. At that time, the connection allowance 61 of the second connection port 6 is drained by an amount corresponding to the insertion of the connection allowance 52 into the trap end T1 as compared to the insertion of the connection allowance 52 of the first connection port 5 into the trap end T1. Although the cover to the pipe end portion P1 becomes shallow, it still covers a length sufficient for stable assembly of the vent valve-equipped joint 1 to the drainage path D.

ここで、排水経路Ｄに組み込まれた通気弁付継手１の役割について説明する。
図７に示す状態は、排水経路Ｄの非排水時の状態、すなわち排水経路Ｄ内に負圧が発生していない状態である。通気管部３１の先端に取り付けられた弁体収容体３３内には、通気管部３３の軸方向に摺動する弁体３４が配置され、弁体収容体３３と弁体３４とそれぞれにもうけられた一対の磁石体３５間に働く反発力によって通気部３６を塞いでいる（すなわち、弁体３４が閉じている）。このように、非排水時には、通気部３６が弁体３４によって塞がれているため、下流の排水管Ｐから臭気が逆流し通気窓３７を介して外部に流れ出ることが無い。 Here, the role of the joint 1 with a vent valve incorporated in the drainage path D will be described.
The state shown in FIG. 7 is a state when the drainage path D is not drained, that is, a state where no negative pressure is generated in the drainage path D. A valve element 34 that slides in the axial direction of the vent pipe part 33 is disposed in the valve element container 33 attached to the tip of the vent pipe part 31, and is provided on each of the valve element container 33 and the valve element 34. The ventilation portion 36 is blocked by the repulsive force acting between the pair of magnet bodies 35 (that is, the valve body 34 is closed). In this way, at the time of non-drainage, since the ventilation portion 36 is blocked by the valve body 34, odor does not flow backward from the downstream drainage pipe P and does not flow outside through the ventilation window 37.

一方で、排水時は、図８に示すように、弁体３４が、一対の磁石体３５間の反発力を上回る排水経路Ｄ内に発生した負圧の吸引力によって通気管部３１の軸方向に沿って下流側に引き寄せられて通気部３６が開放される（すなわち、弁体３４が開かれる）。すると、図８に示した矢印のように、外気が通気窓３７を介して通気部３６、通気管部３１を通って排水経路Ｄに流れ込むことで、排水経路Ｄ内に発生した負圧が解消されてゆき、弁体３４は負圧が解消されれば一対の磁石体３５間の反発力で図７の状態に戻り再び通気部３６を閉塞する。なお、各図では省略したが、通気窓３７には、虫やゴミの侵入を防ぐ細かい目の網が設置されており、通気時に虫やゴミも外気と共に吸入してしまい、例えばそれらの虫やゴミが弁体３４と通気部３６の間に挟まってしまうことでの閉塞不良を招かないようにしている。   On the other hand, at the time of drainage, as shown in FIG. 8, the valve body 34 is in the axial direction of the ventilation pipe portion 31 by the negative suction force generated in the drainage path D exceeding the repulsive force between the pair of magnet bodies 35. And the vent 36 is opened (that is, the valve body 34 is opened). Then, as shown by the arrows shown in FIG. 8, the outside air flows into the drainage path D through the ventilation section 36 and the ventilation pipe section 31 through the ventilation window 37, thereby eliminating the negative pressure generated in the drainage path D. Then, when the negative pressure is eliminated, the valve body 34 returns to the state of FIG. 7 by the repulsive force between the pair of magnet bodies 35 and closes the ventilation portion 36 again. Although not shown in each figure, the ventilation window 37 is provided with a fine mesh net for preventing insects and dust from entering, and the insects and dust are inhaled together with the outside air during ventilation. This prevents the occurrence of a blockage failure due to dust trapped between the valve body 34 and the ventilation portion 36.

続いて、第１実施形態の通気弁付継手１の作用効果について説明する。
（１）通気弁付継手１は、本管部２は、その両端に接続口（第一接続口５及び第二接続口６）がそれぞれ形成され、各接続口（第一接続口５及び第二接続口６）には、それぞれの接続対象（トラップＴ及び排水管Ｐ）の端部（トラップ端部Ｔ１及び排水管端部Ｐ１）に挿し込まれる接続代５２と覆いかぶさる接続代６１がそれぞれ形成されるとともに、各接続口（第一接続口５及び第二接続口６）の内、一方の接続口（第一接続口５）の接続代５２には、周壁５１の一部をその端面から本管部２の軸方向に凹むように切り欠くことで、凹部５３が形成されて、この凹部５２は、分断された両側が各接続口（第一接続口５及び第二接続口６）が接続される接続対象の端部（トラップ端部Ｔ１及び排水管端部Ｐ１）となった排水経路Ｄの分断箇所Ｌにおいて本管部２を他方の接続口（第二接続口６）の接続代６１からその接続対象の端部（排水管端部Ｐ１）に覆いかぶせつつ排水経路Ｄに沿う方向に回動させる際に、本管部２を一方の接続口（第一接続口５）の接続代５２とその接続対象の端部（トラップ端部Ｔ１）との接触を回避することで本管部２を分断箇所Ｌに排水経路Ｄに沿う方向に差し入れ可能に形成されている。従って、本管部２が円滑に分断箇所Ｌに差し入れられることによって、通気弁付継手１を排水経路Ｄに容易に組み込むことができる。 Then, the effect of the coupling 1 with a vent valve of 1st Embodiment is demonstrated.
(1) As for the joint 1 with a vent valve, as for the main pipe part 2, the connection port (the 1st connection port 5 and the 2nd connection port 6) is each formed in the both ends, and each connection port (the 1st connection port 5 and the 1st connection port) In the two connection ports 6), there are a connection allowance 52 and a connection allowance 61 covering the ends (trap end T1 and drain pipe end P1) of the respective connection objects (trap T and drain pipe P). A part of the peripheral wall 51 is formed on the end face of the connection allowance 52 of one connection port (first connection port 5) among the connection ports (first connection port 5 and second connection port 6). The recess 53 is formed by cutting away from the main pipe 2 so as to be recessed in the axial direction. The recess 52 is connected to the connection ports (the first connection port 5 and the second connection port 6) on both sides. Of the drainage path D that is the end of the connection target (trap end T1 and drain pipe end P1) When the main pipe part 2 is rotated in the direction along the drainage path D while being covered from the connection allowance 61 of the other connection port (second connection port 6) to the connection target end part (drainage pipe end part P1). In addition, the main pipe part 2 is divided by avoiding contact between the connection allowance 52 of one connection port (first connection port 5) and the end part (trap end part T1) to be connected. L can be inserted in the direction along the drainage path D. Therefore, the main valve part 2 can be easily inserted into the drainage path D by smoothly inserting the main pipe part 2 into the dividing portion L.

（２）通気弁付継手１は、本管部２は、その両端に接続口（第一接続口５及び第二接続口６）がそれぞれ形成され、各接続口（第一接続口５及び第二接続口６）には、それぞれの接続対象（トラップＴ及び排水管Ｐ）の端部（トラップ端部Ｔ１及び排水管端部Ｐ１）に挿し込まれる接続代５２と覆いかぶさる接続代６１がそれぞれ形成されるとともに、各接続口（第一接続口５及び第二接続口６）の内、一方の接続口（第一接続口５）の接続代５２には、周壁５１の一部をその端面から本管部２の軸方向に凹むように切り欠くことで、凹部５３が形成されて、この凹部５２は、分断された両側が各接続口（第一接続口５及び第二接続口６）が接続される接続対象の端部（トラップ端部Ｔ１及び排水管端部Ｐ１）となった排水経路Ｄの分断箇所Ｌにおいて本管部２を他方の接続口（第二接続口６）の接続代６１からその接続対象の端部（排水管端部Ｐ１）に覆いかぶせつつ排水経路Ｄに沿う方向に回動させる際に、本管部２を一方の接続口（第一接続口５）の接続代５２とその接続対象の端部（トラップ端部Ｔ１）との接触を回避することで本管部２を分断箇所Ｌに排水経路Ｄに沿う方向に差し入れ可能に形成されている。従って、分断長Ｌ１が、凹部５３が形成されていなかった従来の通気弁付継手において差し入れ可能であった長さに比べて短い長さであっても本管部２を差し入れることが可能となることで、通気弁付継手１が、排水経路Ｄに、第一接続口５の接続代５２がトラップ端部Ｔ１内に充分に挿入されるとともに第二接続口６の接続代６１が排水管端部Ｐ１に充分に覆いかぶさった状態で組み付けられるため、通気弁付継手１の排水経路Ｄへの組込み状態が従来の通気弁付継手に比べ安定する。   (2) As for the joint 1 with a vent valve, as for the main pipe part 2, the connection port (the 1st connection port 5 and the 2nd connection port 6) is each formed in the both ends, and each connection port (the 1st connection port 5 and the 1st connection port 5) In the two connection ports 6), there are a connection allowance 52 and a connection allowance 61 covering the ends (trap end T1 and drain pipe end P1) of the respective connection objects (trap T and drain pipe P). A part of the peripheral wall 51 is formed on the end face of the connection allowance 52 of one connection port (first connection port 5) among the connection ports (first connection port 5 and second connection port 6). The recess 53 is formed by cutting away from the main pipe 2 so as to be recessed in the axial direction. The recess 52 is connected to the connection ports (the first connection port 5 and the second connection port 6) on both sides. Of the drainage path D that is the end of the connection target (trap end T1 and drain pipe end P1) When the main pipe part 2 is rotated in the direction along the drainage path D while being covered from the connection allowance 61 of the other connection port (second connection port 6) to the connection target end part (drainage pipe end part P1). In addition, the main pipe part 2 is divided by avoiding contact between the connection allowance 52 of one connection port (first connection port 5) and the end part (trap end part T1) to be connected. L can be inserted in the direction along the drainage path D. Therefore, it is possible to insert the main pipe portion 2 even if the dividing length L1 is shorter than the length that can be inserted in the conventional joint with a vent valve in which the concave portion 53 is not formed. Thus, the vent valve joint 1 is inserted into the drainage path D, the connection allowance 52 of the first connection port 5 is sufficiently inserted into the trap end T1, and the connection allowance 61 of the second connection port 6 is the drainage pipe. Since it is assembled in a state where it is sufficiently covered with the end portion P1, the assembled state of the vent-valve fitting 1 in the drainage path D is more stable than the conventional vent-valve joint.

（３）凹部５３は、一方の接続口（第一接続口５）の周壁５２において、通気路３が設けられた側から本管部２の軸を挟んだ反対の側に形成されている。従って、本管部２を排水経路Ｄに差し入れる際に、通気路３が接続対象（トラップＴもしくは排水管Ｐ）に接触してしまう等の邪魔にならない   (3) The recess 53 is formed on the opposite side of the peripheral wall 52 of the one connection port (first connection port 5) from the side where the air passage 3 is provided, with the axis of the main pipe unit 2 interposed therebetween. Therefore, when the main pipe part 2 is inserted into the drainage path D, the vent path 3 does not interfere with the connection target (trap T or drainage pipe P).

（４）通気路３は、本管部２に対して鋭角を成すように本管部２から分岐するとともに、凹部５３は、本管部２の両端に形成された各接続口（第一接続口５及び第二接続口６）の内、通気路３の先端が配置された側に形成された接続口（第一接続口５）の接続代５２に形成されている。従って、排水経路Ｄの下流側に配置される接続口（第二接続口６）を支点にして分断部Ｌに本管部２を差し入れることができるので、通気弁付継手１を特に鉛直方向に流れる排水経路Ｄに組み込むのに適している。   (4) The air passage 3 branches from the main pipe part 2 so as to form an acute angle with respect to the main pipe part 2, and the recesses 53 are connected to the respective connection ports (first connection) formed at both ends of the main pipe part 2. It is formed in the connection allowance 52 of the connection port (first connection port 5) formed on the side where the front end of the air passage 3 is arranged among the port 5 and the second connection port 6). Therefore, since the main pipe portion 2 can be inserted into the dividing portion L with the connection port (second connection port 6) arranged on the downstream side of the drainage path D as a fulcrum, the joint 1 with the vent valve is particularly vertical. It is suitable for incorporation into the drainage path D flowing through

（５）本管部２は、一方の接続口（第一接続口５）の凹部５３よりも軸方向中央側に止水パッキン８を備えている。従って、排水が凹部５３を伝ってトラップ端部Ｔ１より下流の本管部２の外面に漏れ出ることを防止でき、確実に止水できる。   (5) The main pipe part 2 is provided with the water stop packing 8 on the axially central side with respect to the recessed part 53 of one connection port (first connection port 5). Therefore, the drainage can be prevented from leaking to the outer surface of the main pipe portion 2 downstream from the trap end portion T1 through the concave portion 53, and water can be reliably stopped.

（６）通気路３には、排水経路Ｄ内で負圧が発生した場合のみ通気部３６を開くように弁体３４が配置されている。従って、非排水時には排水経路Ｄ内から外部への臭気漏れを防ぎ、排水時には通気部３６を開放して外気を排水経路Ｄに流入させて負圧を解消して、トラップＴ内の封水が負圧によって排水されてしまうことを防ぐことができる。   (6) The valve body 34 is arranged in the ventilation path 3 so as to open the ventilation part 36 only when a negative pressure is generated in the drainage path D. Accordingly, odor leakage from the drainage channel D to the outside is prevented during non-drainage, and the vent 36 is opened during drainage to allow the outside air to flow into the drainage channel D to eliminate negative pressure, and the sealed water in the trap T is removed. It is possible to prevent drainage due to negative pressure.

（７）通気弁付継手１は、本管部２の軸方向に対し４５°の角度で分岐した通気路３と、を備え、さらに、通気路３の軸方向、すなわち本管部２の軸方向に対して４５°の方向に移動して開閉する弁体３４を備えている。従って、鉛直方向への排水経路Ｄのみならず、本管部２を水平方向への排水管の分断箇所に差し入れて、通気路３が上方に向かうように排水経路に組み込めば、通気弁付継手１を水平方向への排水経路に組み込みんでも弁体３４を正常に作動させることができる。   (7) The vent valve joint 1 includes a vent path 3 branched at an angle of 45 ° with respect to the axial direction of the main pipe section 2, and further the axial direction of the vent path 3, that is, the axis of the main pipe section 2. A valve body 34 that moves in a direction of 45 ° with respect to the direction and opens and closes is provided. Therefore, if not only the drainage path D in the vertical direction but also the main pipe portion 2 is inserted into the part where the drainage pipe in the horizontal direction is divided and incorporated into the drainage path so that the ventilation path 3 faces upward, the joint with a ventilation valve Even if 1 is incorporated in the horizontal drainage path, the valve body 34 can be operated normally.

第１の実施形態は、次のように変更しても良い。
・第一接続口５のみに凹部５３を形成したが、第二接続口６にも接続対象の端部（排水管端部Ｐ１）との接触をさける凹部を形成しても良い。あるいは、凹部５３を第一接続口５には形成せず、第二接続口６のみに凹部を形成しても良い。そのように第二接続口６にのみ凹部を形成した場合は、本管部２を排水経路Ｄの分断箇所Ｌに第一接続口５の側から差し入れ、第一接続口５を支点にして本管部２を回動させるようにして排水経路Ｄに差し入れる必要がある。 The first embodiment may be modified as follows.
-Although the recessed part 53 was formed only in the 1st connection port 5, you may form the recessed part which avoids a contact with the edge part (drain pipe edge part P1) of a connection object also in the 2nd connection port 6. FIG. Alternatively, the recess 53 may be formed only in the second connection port 6 without forming the recess 53 in the first connection port 5. When the concave portion is formed only in the second connection port 6 as described above, the main pipe portion 2 is inserted into the dividing portion L of the drainage path D from the first connection port 5 side, and the main connection portion 5 is used as a fulcrum. It is necessary to insert into the drainage path D so that the pipe part 2 is rotated.

・凹部５３は図２（Ａ）や図２（Ｃ）に現れるように、第一接続口５の端面を平面視で７０°程の幅に亘って切り欠いた凹部であるが、もっと幅広に切り欠いたり幅狭に切り欠いたりしてもよい。極端に言えば、第一接続口５の端面を平面視で３００°以上に亘って切り欠いて、凹部が第一接続口５の端面の多くの部分を占めてもよい。また、凹部５３の本管部２の軸方向への凹みの深さも、より深かったり浅かったりしても良い。   As shown in FIGS. 2A and 2C, the recess 53 is a recess in which the end surface of the first connection port 5 is cut out over a width of about 70 ° in a plan view. It may be cut out or cut out narrowly. If it says extremely, the end surface of the 1st connection port 5 may be notched over 300 degrees or more by planar view, and a recessed part may occupy many parts of the end surface of the 1st connection port 5. FIG. Further, the depth of the concave portion 53 in the axial direction of the main pipe portion 2 may be deeper or shallower.

・第一接続口５をその接続対象の端部（トラップ端部Ｔ１）に挿し込まれるようにして、かつ第二接続口６をその接続対象の端部（排水管端部Ｐ１）に覆いかぶさるように接続代５２及び６１をそれぞれ形成したが、第一接続口５の接続代を接続対象の端部に覆いかぶさるように形成してもよいし、第二接続口６の接続代を接続対象の端部に挿し込まれるように形成しても良い。また、両接続口の接続代共、接続対象の端部に挿し込まれる接続代に形成しても良いし、接続対象の端部に覆いかぶさる接続代に形成しても良い。   The first connection port 5 is inserted into the connection target end (trap end T1), and the second connection port 6 is covered with the connection target end (drain pipe end P1). The connection allowances 52 and 61 are formed as described above. However, the connection allowance of the first connection port 5 may be formed so as to cover the end of the connection target, or the connection allowance of the second connection port 6 may be set as the connection target. You may form so that it may be inserted in the edge part. Further, the connection allowance of both connection ports may be formed as a connection allowance inserted into the end of the connection target, or may be formed as a connection allowance that covers the end of the connection target.

・通気路３は本管部２に対して４５°の角度で形成する必要はなく、より鋭角に形成してもよい。但し、両者の角度を４５°にしておけば、通気弁付継手を第１の実施形態のような鉛直方向の排水経路Ｄへの組み込みに限らず、水平方向への排水経路に組み込むこともできる。更に言えば、通気路を本管部に対して４５°よりもより鈍角に形成しておくことで、水平方向の排水経路への組み込みに特化した通気弁付継手とすることもできる。   The air passage 3 does not need to be formed at an angle of 45 ° with respect to the main pipe portion 2 and may be formed at a more acute angle. However, if the angle of both is set to 45 °, the joint with a vent valve can be incorporated not only in the vertical drainage path D as in the first embodiment but also in the horizontal drainage path. . Furthermore, by forming the ventilation path at an obtuse angle with respect to the main pipe part at an angle of more than 45 °, it is possible to provide a joint with a ventilation valve specialized for incorporation into a horizontal drainage path.

・通気弁継手１の各接続口５及び６の接続対象は、トラップＴと排水管Ｐに限るものではない。特に上述したように、水平方向の排水経路に組み込む場合は、水平方向に配管された排水管の分断箇所に掛け渡るように各接続口５及び６が共に排水管に接続されることが考えられる。   The connection object of each connection port 5 and 6 of the vent valve joint 1 is not limited to the trap T and the drain pipe P. In particular, as described above, when incorporated in a horizontal drainage path, it is conceivable that both the connection ports 5 and 6 are connected to the drainage pipe so as to extend over the part where the horizontal drainage pipe is divided. .

・本管部２の両端は接続対象にどのような手段で接続しても良い。例えば、固定部材４や第二接続口用固定部材Ｎを用いず、接続対象に接着固定しても良い。同様に、弁体収容体３３もどのような手段で通気管部３１に接続しても良い、例えば収容体接続部３２のねじ山を省略し弁体収容体３３を通気管部３１に接着固定しても良い。   -Both ends of the main pipe section 2 may be connected to the connection target by any means. For example, the fixing member 4 and the second connection port fixing member N may not be used and may be bonded and fixed to the connection target. Similarly, the valve body container 33 may be connected to the vent pipe part 31 by any means. For example, the thread of the container body connection part 32 is omitted and the valve body container 33 is bonded and fixed to the vent pipe part 31. You may do it.

・弁体３４で通気部３６を閉塞する手段は、磁石体３５に限らずいかなる手段であっても良い。例えば、排水管路Ｄ内に発生する負圧に負けて縮むばね部材であったりしても良い。或いは、弁体収容体を、通気部が鉛直方向真下に向けて開放するように形成し、その上に弁体を載せて自重で通気部を閉塞し、弁体の自重を持ち上げる程の負圧発生時に弁体が持ち上げられて通気部が開放されるような構造としても良い。また、通気管部３１の内部に弁体３４を設けることができれば、弁体収容体３３を省略して通気路３を形成しても良い。   The means for closing the ventilation portion 36 with the valve body 34 is not limited to the magnet body 35 and may be any means. For example, it may be a spring member that contracts under a negative pressure generated in the drainage pipe D. Alternatively, the valve body container is formed so that the ventilation part opens in the vertical direction, the valve body is placed on the valve body, the ventilation part is closed by its own weight, and the negative pressure is enough to lift the weight of the valve body. It is good also as a structure where a valve body is lifted at the time of generation | occurrence | production and a ventilation part is open | released. Further, if the valve body 34 can be provided inside the ventilation pipe portion 31, the valve body housing body 33 may be omitted and the ventilation path 3 may be formed.

・本管部２は両接続口５及び６に対して鉛直方向に延びるように形成しなくても良い。例えば、トラップ端部Ｔ１と排水管端部Ｐ１が、水平方向にずれて分断された箇所に組み込むために、斜め方向に延びで水平方向にずれた両接続口５及び６を結ぶような本管部であっても良い。   -Main part 2 does not need to be formed so that it may extend in the perpendicular direction to both connection ports 5 and 6. For example, in order to incorporate the trap end portion T1 and the drain pipe end portion P1 in a position that is separated by being shifted in the horizontal direction, the main pipe that connects both the connection ports 5 and 6 extending in the oblique direction and shifted in the horizontal direction is used. May be part.

・第１の実施形態の通気弁付継手１は、排水経路Ｄの分断箇所Ｌに差し入れずに使ってもよい。例えば、第１の実施形態の通気弁付継手１を、第一接続口５をトラップＴに接続した後に、蛇腹状の可とう管かならる排水管を用いて、この排水管を第二接続口６に接続することもできる。   -You may use the coupling 1 with a vent valve of 1st Embodiment, without inserting in the parting location L of the drainage path D. FIG. For example, after connecting the 1st connection port 5 to the trap T, the drainage pipe which becomes a bellows-like flexible pipe is used for the 2nd connection of this drainage pipe with the vent valve joint 1 of 1st Embodiment. It can also be connected to the mouth 6.

１：通気弁付継手、１１：継手本体、２：本管部、３：通気路、３３、弁体収容体、３４：弁体、５：第一接続口、５１：接続代、５２：周壁、５３：凹部、６：第二接続口、８：止水パッキン、Ｄ：排水経路、Ｐ：排水管（接続対象）、Ｔ：トラップ（接続対象）、Ｓ：流し台、Ｌ：分断箇所   DESCRIPTION OF SYMBOLS 1: Joint with a vent valve, 11: Joint main body, 2: Main pipe part, 3: Air flow path, 33, Valve body container, 34: Valve body, 5: 1st connection port, 51: Connection allowance, 52: Perimeter wall 53: Recess, 6: Second connection port, 8: Water stop packing, D: Drainage path, P: Drain pipe (connection object), T: Trap (connection object), S: Sink, L: Dividing point

Claims (4)

排水が通る本管部と、当該本管部から分岐した通気路と、当該通気路に設けられて前記本管部への通気を制御する弁体と、を備え、前記本管部が建物の排水経路に組み込まれて当該排水経路への通気を行う通気弁付継手であって、
前記本管部は、その両端に接続口がそれぞれ形成され、
前記各接続口には、それぞれの接続対象の端部に挿し込まれる或いは覆いかぶさる接続代がそれぞれ形成されるとともに、
前記各接続口の内、一方の接続口の前記接続代には、周壁の一部をその端面から前記本管部の軸方向に凹むように切り欠くことで、凹部が形成されて、
当該凹部は、分断された両側が前記各接続口が接続される接続対象の端部となった前記排水経路の分断箇所において前記本管部を他方の前記接続口の前記接続代からその接続対象の端部に挿し込み或いは覆いかぶせつつ前記排水経路に沿う方向に回動させる際に、前記一方の接続口の接続代とその接続対象の端部との接触を回避することで前記本管部を前記分断箇所に前記排水経路に沿う方向に差し入れ可能に形成された通気弁付継手。 A main pipe part through which drainage passes, a vent path branched from the main pipe part, and a valve body provided in the vent path for controlling ventilation to the main pipe part. A fitting with a vent valve that is incorporated into a drainage channel and ventilates the drainage channel,
The main pipe part has connection ports formed at both ends thereof,
Each of the connection ports is formed with a connection allowance that is inserted into or covered with an end of each connection target,
Of the connection ports, in the connection allowance of one connection port, a recess is formed by cutting out a part of the peripheral wall from the end surface so as to be recessed in the axial direction of the main pipe part,
The concave portion is connected to the main pipe portion from the connection allowance of the other connection port at the divided portion of the drainage passage where the divided sides are the end portions of the connection target to which the connection ports are connected. The main pipe part by avoiding contact between the connection allowance of the one connection port and the end part of the connection target when rotating in the direction along the drainage path while being inserted or covered with the end part of A joint with a vent valve formed so as to be able to be inserted in a direction along the drainage path at the dividing portion. 前記凹部は、前記一方の接続口の周壁において、前記通気路が設けられた側から前記本管部の軸を挟んだ反対の側に形成された請求項１に記載の通気弁付継手。   2. The joint with a vent valve according to claim 1, wherein the concave portion is formed on the opposite side of the peripheral wall of the one connection port from the side where the vent path is provided with the shaft of the main pipe portion interposed therebetween. 前記通気路は、前記本管部に対し鋭角を成すように当該本管部から分岐するとともに、前記凹部は、前記本管部の両端に形成された前記各接続口の内、前記通気路の先端が配置された側に形成された接続口の前記接続代に形成された請求項２に記載の通気弁付継手。   The air passage is branched from the main pipe portion so as to form an acute angle with respect to the main pipe portion, and the concave portion is formed in each of the connection ports formed at both ends of the main pipe portion. The joint with a vent valve according to claim 2, formed at the connection allowance of a connection port formed on the side where the tip is disposed. 前記本管部は、前記凹部が形成された接続口の当該凹部よりも軸方向中央側に止水パッキンを備えている請求項１〜４のいずれか一項に記載の通気弁付継手。   The said main pipe part is a coupling with a vent valve as described in any one of Claims 1-4 provided with the water stop packing in the axial direction center side rather than the said recessed part of the connection port in which the said recessed part was formed.
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KR200496203Y1 (en) * 2022-06-15 2022-11-28 넥셀시스템(주) Drain Air Vent for Air Conditioner

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