JP2019027147A

JP2019027147A - Joint member

Info

Publication number: JP2019027147A
Application number: JP2017147773A
Authority: JP
Inventors: 大輔服部; Daisuke Hattori
Original assignee: Maruichi Corp
Current assignee: Maruichi Corp
Priority date: 2017-07-31
Filing date: 2017-07-31
Publication date: 2019-02-21
Anticipated expiration: 2037-07-31
Also published as: JP7097033B2

Abstract

To provide a joint member which is provided with a valve body attached to a drainage flow passage to prevent a reverse flow of fluid from a downstream side, and can facilitate attaching/detaching or cleaning of the valve body through an inspection port.SOLUTION: A joint member 1 comprises: a joint body 10 provided with an inspection port 14 on a wall surface; a cover portion 20 for closing the inspection port 14; an adapter 30 connected to the cover portion 20 and arranged in the joint body 10; and a valve body 50 attached to the adapter 30. The valve body 50 has a substantially conical shape and has a water cut-off portion 52 that abuts against the entire inner periphery of a flow channel forming portion 32. Since the water cut-off portion 52 abuts over the entire inner periphery of the flow channel forming portion 32 using the self elasticity as energizing means, the water cut-off portion 52 water-tightly abuts against the flow channel forming portion 32 constantly and can close a drain flow passage even if the inspection port 14 is disposed so that the direction thereof is any direction, such as upward, downward, or sideways when the joint member 1 is connected to a horizontally installed pipe.SELECTED DRAWING: Figure 1

Description

本発明は、排水配管に取り付けられて、下流側からの流体の逆流を防止する弁体を備えた継ぎ手部材に関するものである。 The present invention relates to a joint member provided with a valve body that is attached to a drain pipe and prevents a reverse flow of fluid from the downstream side.

排水配管に接続される継ぎ手部材としては、特許文献１のように、内部に弁体を備え、下流側からの流体の逆流を防止する構造のものが知られている。尚、特許文献１に記載の継ぎ手部材は冷凍冷蔵庫や空調機器等の設備機器の使用に伴い生じるドレンを排出する排水配管に接続されるものであって、当該排水配管は略水平方向に配設される横引き管である。
上記弁体は排水流路内において回動可能となるよう継ぎ手本体に取り付けられている。又、無排水時において弁体は弁座に当接しており、下流側からの臭気や排水（流体等）、又は害虫の逆流を防いでいる。尚、下流側より流体の逆流が生じた際には、弁体に対し、弁座に押し付けられる方向に応力が加わることから、排水流路の閉塞が維持される。一方、上流側から排水が排出された際には、当該排水によって弁体が回動し、排水流路が一時的に開放されることによって下流側へと排水を排出する。即ち、弁体は無排水時や下流側より流体の逆流が生じた際には弁体が排水流路を閉塞し、上流側より排水が生じた際には排水流路を開放するように回動する構造となっている。
又、継ぎ手部材は上部に点検口及び当該点検口を閉塞する蓋部を有しており、当該蓋部を取り外すことにより点検口から弁体の着脱や継ぎ手部材内部の清掃等を行うことが可能となる。 As a joint member connected to the drainage pipe, there is known a structure having a valve body inside to prevent a backflow of fluid from the downstream side as disclosed in Patent Document 1. In addition, the joint member described in Patent Document 1 is connected to a drain pipe that discharges drains generated by use of equipment such as a refrigerator-freezer and an air conditioner, and the drain pipe is disposed in a substantially horizontal direction. Is a horizontal pulling tube.
The valve body is attached to the joint body so as to be rotatable in the drainage channel. In addition, the valve body is in contact with the valve seat when there is no drainage, preventing odors, drainage (fluid, etc.) from the downstream side, or backflow of pests. In addition, when a reverse flow of the fluid occurs from the downstream side, stress is applied to the valve body in the direction in which it is pressed against the valve seat, so that the drainage passage is closed. On the other hand, when drainage is discharged from the upstream side, the valve body is rotated by the drainage, and the drainage channel is temporarily opened to discharge the drainage downstream. In other words, when the valve body is drained or when a backflow of fluid occurs from the downstream side, the valve body closes the drainage channel, and when drainage occurs from the upstream side, the valve body is opened so that the drainage channel is opened. It has a moving structure.
In addition, the joint member has an inspection port on the top and a lid that closes the inspection port. By removing the lid, it is possible to attach and detach the valve body from the inspection port or clean the inside of the joint member. It becomes.

特開２００７−２２４５２９号公報JP 2007-224529 A

上記継ぎ手部材は、点検口より弁体の着脱や清掃等を行うことが困難となる場合があった。例えば、継ぎ手部材が空調機器から連続する排水配管に接続されている場合、継ぎ手部材は天井裏に配置される。この時、作業者は下の階の天井に形成された点検用の蓋を取り外し、下方から継ぎ手部材の点検を行うが、下方から継ぎ手部材の上部に配置された蓋部を取り外し、弁体の着脱や清掃を行うことは困難であった。又、継ぎ手部材が冷凍冷蔵庫から連続する排水配管に接続されている場合、点検口の上方には冷凍冷蔵庫等の設備機器が配置されていることがあり、やはり継ぎ手部材の上部に配置された蓋部を取り外すことは困難であった。 In some cases, it is difficult for the joint member to be attached / detached or cleaned from the inspection port. For example, when the joint member is connected to a continuous drain pipe from the air conditioner, the joint member is disposed on the back of the ceiling. At this time, the operator removes the inspection lid formed on the ceiling of the lower floor and inspects the joint member from below, but removes the lid portion arranged on the upper portion of the joint member from below and removes the valve body. It was difficult to detach and clean. In addition, when the joint member is connected to a continuous drainage pipe from the refrigerator / refrigerator, equipment such as a refrigerator / freezer may be disposed above the inspection port, and the lid is also disposed above the joint member. It was difficult to remove the part.

本発明は上記問題に鑑み発明されたものであって、点検口より容易に弁体の着脱や清掃等を行うことが可能となる継ぎ手部材の提供を課題とする。 This invention is invented in view of the said problem, Comprising: It aims at provision of the joint member which can perform attachment / detachment, cleaning, etc. of a valve body easily from an inspection port.

請求項１に記載の本発明は、端部に管体が接続される継ぎ手部材であって、
壁面に形成された点検口と、
点検口を閉塞する蓋部と、
点検口より継ぎ手部材内部に配置され、弁座に当接することにより流体の逆流を防ぐ弁体を備え、
上記弁体は弁座と当接して排水流路を閉塞する止水部を有し、
当該止水部は継ぎ手部材が横引き管に対して接続された際において、点検口の向きを任意の角度に傾斜させた場合であっても、排水流路を閉塞可能であることを特徴とする継ぎ手部材である。 The present invention according to claim 1 is a joint member in which a pipe body is connected to an end portion,
An inspection port formed on the wall surface;
A lid that closes the inspection port;
It is arranged inside the joint member from the inspection port, and has a valve body that prevents back flow of fluid by contacting the valve seat,
The valve body has a water stop portion that abuts the valve seat and closes the drainage flow path,
The water stop portion is characterized in that the drainage flow path can be closed even when the direction of the inspection port is inclined at an arbitrary angle when the joint member is connected to the horizontal pipe. This is a joint member that

請求項２に記載の本発明は、前記弁座が、排水流路の内周全周に亘り形成されていることを特徴とする請求項１に記載の継ぎ手部材である。 The present invention described in claim 2 is the joint member according to claim 1, wherein the valve seat is formed over the entire inner circumference of the drainage channel.

請求項３に記載の本発明は、上記止水部は付勢手段によって弁座に当接するよう応力が加えられていることを特徴とする請求項１又は請求項２に記載の継ぎ手部材である。 According to a third aspect of the present invention, in the joint member according to the first or second aspect, stress is applied to the water stop portion so as to contact the valve seat by an urging means. .

請求項４に記載の本発明は、前記弁体は略円錐形状を成し、
外側面が弁座と当接する止水部として機能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１つに記載の継ぎ手部材である。 In the present invention according to claim 4, the valve body has a substantially conical shape,
The joint member according to any one of claims 1 to 3, wherein an outer side surface functions as a water stop portion that contacts the valve seat.

請求項５に記載の本発明は、前記弁体は排水流路の内周から離間した位置に備えた固定部に固定され、継ぎ手部材が横引き管に対して接続された際において、点検口の向きを任意の角度に傾斜させた場合であっても、常に固定部と排水流路の底部との間が離間していることを特徴とする請求項１乃至請求項４のいずれか一つに記載の継ぎ手部材である。 According to a fifth aspect of the present invention, when the valve body is fixed to a fixing portion provided at a position separated from the inner periphery of the drainage flow path, and the joint member is connected to the horizontal pulling pipe, the inspection port is provided. The fixed part and the bottom part of the drainage channel are always separated from each other even when the direction of the inclination is inclined at an arbitrary angle. It is a joint member as described in above.

請求項６に記載の本発明は、前記継ぎ手部材は横引き管に接続されている状態において、
点検口の向きに関わらず止水部の下端が排水流路の底部に位置することを特徴とする請求項１乃至請求項５のいずれか１つに記載の排水配管である。 According to a sixth aspect of the present invention, in the state where the joint member is connected to a horizontal pulling pipe,
The drainage pipe according to any one of claims 1 to 5, wherein a lower end of the water stop portion is positioned at a bottom portion of the drainage channel regardless of a direction of the inspection port.

請求項７に記載の本発明は、前記継ぎ手部材は、
点検口から継ぎ手部材内部に挿入されるアダプターを備え、
アダプターは継ぎ手部材内部に配置された際に排水流路の一部を構成するとともに、弁体及び弁座を有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１つに記載の排水配管である。 The present invention according to claim 7 is characterized in that the joint member is
With an adapter that is inserted into the joint member from the inspection port,
The drainage according to any one of claims 1 to 6, wherein the adapter constitutes a part of a drainage flow path when disposed inside the joint member, and has a valve body and a valve seat. It is piping.

本発明の継ぎ手部材は、横引き管に接続された際に、点検口を任意の角度に傾斜可能となるため、施工状況に合わせて点検口を下方や側面等に向けることが可能であり、清掃やメンテナンス性が向上する。そして、請求項２乃至請求項６に記載の構成を備えることにより、点検口を任意の方向に傾斜させた場合であっても良好に排水流路を閉塞可能となる。即ち、弁座が排水流路の内周全周に亘り形成されていることから、点検口の方向に関わらず排水流路の閉塞／開放が可能である。又、止水部が自重によって排水流路を閉塞する構造である場合、弁体が排水流路を閉塞可能な方向が限定されてしまうが、本発明において、止水部は付勢手段によって弁座に当接しているため、点検口が任意の方向に傾斜されたとしても、止水部が弁座に当接可能である。又、弁体が略円錐形状を成すことから、上流側からの排水を通過させるとともに、下流側からの流体等の逆流を好適に防ぐことが可能となる。又、固定部が排水流路の内周から離間した位置に備えられていることから、固定部によって排水が妨げられるといった問題が生じることはない。又、点検口の向きに関わらず止水部の下端が排水流路の底部に位置することから、止水部より上流側における水残りを防ぐことが可能となる。
更に、本発明は点検口から継ぎ手部材内部に挿入されるアダプターを備え、当該アダプターが弁体及び弁座を有することにより、点検口から弁体を脱着する際に弁体が変形する等の恐れがなくなる。又、清掃等の際には、アダプターを継ぎ手部材から取り外した後に弁体の着脱等を行うことが可能となることから、継ぎ手部材が狭所に取り付けられた際に、当該狭所内で作業を行う必要がなくなる。 When the joint member of the present invention is connected to the horizontal pipe, the inspection port can be inclined at an arbitrary angle, so that the inspection port can be directed downward or on the side according to the construction situation. Cleaning and maintenance are improved. And by providing the structure of Claim 2 thru | or 6, even if it is a case where an inspection port is made to incline in arbitrary directions, a drainage flow path can be obstruct | occluded favorably. That is, since the valve seat is formed over the entire inner circumference of the drainage channel, the drainage channel can be closed / opened regardless of the direction of the inspection port. Further, when the water stop portion has a structure that closes the drainage flow path by its own weight, the direction in which the valve body can close the drainage flow passage is limited. In the present invention, the water stop portion is Since it abuts on the seat, the water stop portion can abut on the valve seat even if the inspection port is inclined in an arbitrary direction. In addition, since the valve body has a substantially conical shape, it is possible to allow drainage from the upstream side to pass through and to suitably prevent backflow of fluid or the like from the downstream side. Further, since the fixing portion is provided at a position separated from the inner periphery of the drainage flow path, there is no problem that drainage is prevented by the fixing portion. Moreover, since the lower end of the water stop part is located at the bottom part of the drainage flow path regardless of the direction of the inspection port, it is possible to prevent water remaining on the upstream side of the water stop part.
Furthermore, the present invention includes an adapter that is inserted into the joint member from the inspection port, and the adapter has a valve body and a valve seat, so that the valve body may be deformed when the valve body is detached from the inspection port. Disappears. Also, when cleaning, etc., it is possible to attach and detach the valve body after removing the adapter from the joint member.Therefore, when the joint member is installed in a narrow space, work must be performed in the narrow space. There is no need to do it.

本発明の第一実施形態を示す断面図である。It is sectional drawing which shows 1st embodiment of this invention. 継ぎ手部材を示す分解図である。It is an exploded view which shows a coupling member. （ａ）アダプターを示す断面図、（ｂ）図３（ａ）のＡ−Ａ’断面図である。(A) It is sectional drawing which shows an adapter, (b) It is A-A 'sectional drawing of Fig.3 (a). （ａ）上流側からの排水の流れを示す参考図、（ｂ）下流側から流体等の逆流が生じた際の流れを示す参考図である。(A) The reference figure which shows the flow of the waste_water | drain from an upstream side, (b) The reference figure which shows the flow at the time of the backflow of a fluid etc. having arisen from the downstream. 第二実施形態を示す断面図である。It is sectional drawing which shows 2nd embodiment. 継ぎ手部材を示す分解図である。It is an exploded view which shows a coupling member. （ａ）アダプターを示す断面図、（ｂ）図７（ａ）のＡ−Ａ’断面図である。FIG. 8A is a cross-sectional view showing an adapter, and FIG. 7B is a cross-sectional view taken along the line A-A ′ of FIG. （ａ）上流側からの排水の流れを示す参考図、（ｂ）下流側から流体等の逆流が生じた際の流れを示す参考図である。(A) The reference figure which shows the flow of the waste_water | drain from an upstream side, (b) The reference figure which shows the flow at the time of the backflow of a fluid etc. having arisen from the downstream. 第三実施形態に係る弁体を示す（ａ）断面図、（ｂ）背面図である。It is (a) sectional drawing which shows the valve body which concerns on 3rd embodiment, (b) It is a rear view. 第四実施形態を示す（ａ）断面図、（ｂ）図１０（ａ）のＡ部拡大図である。(A) sectional drawing which shows 4th embodiment, (b) The A section enlarged view of Fig.10 (a). 第五実施形態を示す断面図である。It is sectional drawing which shows 5th embodiment. 第六実施形態を示す断面図である。It is sectional drawing which shows 6th embodiment. 継ぎ手部材の施工状態を示す参考図である。It is a reference drawing which shows the construction state of a joint member. 継ぎ手部材の施工状態を示す参考図である。It is a reference drawing which shows the construction state of a joint member.

以下に、本発明の継ぎ手部材を、図面を参照しつつ説明する。尚、以下に記載する説明は実施形態の理解を容易にするものであって、これによって本発明が制限して理解されるものではない。又、本発明における継ぎ手部材は、継ぎ手本体１０の軸を中心として、点検口１４の向きを上方、側方等任意の方向に向けた状態で固定することが可能であるが、発明の理解を容易にするため、図１乃至図４に示す第一実施形態の説明を行うにあたっては、図１に示すように、点検口１４が下方を向いた状態を基準として上下左右を説明する。 Below, the joint member of this invention is demonstrated, referring drawings. Note that the description given below facilitates understanding of the embodiment, and the present invention is not limited and understood by this. In addition, the joint member in the present invention can be fixed in a state where the direction of the inspection port 14 is directed to an arbitrary direction such as upward or laterally around the axis of the joint body 10. For ease of explanation, in the description of the first embodiment shown in FIGS. 1 to 4, the upper, lower, left, and right sides will be described with reference to the state in which the inspection port 14 faces downward as shown in FIG. 1.

本実施形態の継ぎ手部材１は図２に示すように、壁面に点検口１４を備える継ぎ手本体１０と、点検口１４を閉塞する蓋部２０と、蓋部２０と連結されて継ぎ手本体１０内に配置されるアダプター３０と、アダプター３０に取り付けられた弁体５０から成る。又、継ぎ手部材１はその上流側と下流側において、略水平方向に延設する横引き管に対して接続されている。尚、図１においては上流側及び下流側に接続された横引き管を二点鎖線で記載している。 As shown in FIG. 2, the joint member 1 according to the present embodiment is connected to the joint body 10 having the inspection port 14 on the wall surface, the lid portion 20 that closes the inspection port 14, and the lid portion 20. It consists of an adapter 30 to be arranged and a valve body 50 attached to the adapter 30. Further, the joint member 1 is connected to a horizontal pulling tube extending in a substantially horizontal direction on the upstream side and the downstream side thereof. In FIG. 1, the horizontal pulling pipe connected to the upstream side and the downstream side is indicated by a two-dot chain line.

継ぎ手本体１０は半透明の硬質樹脂から成る筒状のケーシングであって、その上流側端部及び下流側端部において、管体が接続される流入口１１と流出口１２を備えており、内部には後述するアダプター３０を収納する収納室１３が形成されているとともに、壁面には点検口１４が開口されている。尚、本実施形態において、継ぎ手本体１０は点検口１４が下方を向いている。
流入口１１と流出口１２は中心軸が合致する円筒状であって、接着により接続される管体の外径とほぼ同径となる内径を有している。
点検口１４は継ぎ手本体１０の壁面に形成された円形の開口であって、その内周には内側に向けて凸部１５が形成されている。凸部１５は後述する蓋部２０と係合する突起であって、等間隔に４箇所の凸部１５が形成されている。又、点検口１４は蓋部２０及びアダプター３０が挿入された際、凸部１５の上方（収納室１３側）おいて、アダプター３０に取り付けられたパッキン４０が点検口１４の内周全周に亘って当接しており、蓋部２０が取り付けられた状態において水密に閉塞されている。
収納室１３は流入口１１と流出口１２の間であって、図１及び図２に示すように、点検口１４が下方を向いて配置されている状態において、当該点検口１４の直上となる位置に形成されている。又、収納室１３は内部に当接面１６とガイド部１７を備えている。
当接面１６は収納室１３の上流側端部であって、流入口１１との境界に形成されており、蓋部２０及びアダプター３０の挿入方向に対して傾斜し、図１に示すように、パッキン４１を介してアダプター３０と当接している。尚、当接面１６は点検口１４から対向する壁面（上方）に進むにつれて、流入口１１から流出口１２へ向かうようにして傾斜している。
ガイド部１７は上記当接面１６と対向する位置に形成された面であり、蓋部２０及びアダプター３０の挿入方向と同一方向に延設されている。 The joint body 10 is a cylindrical casing made of a translucent hard resin, and has an inlet 11 and an outlet 12 to which a pipe body is connected at an upstream end and a downstream end thereof. Is formed with a storage chamber 13 for storing an adapter 30 to be described later, and an inspection port 14 is opened in the wall surface. In the present embodiment, the joint body 10 has the inspection port 14 facing downward.
The inflow port 11 and the outflow port 12 have a cylindrical shape whose center axes coincide with each other, and have an inner diameter that is substantially the same as the outer diameter of the pipe body connected by bonding.
The inspection port 14 is a circular opening formed in the wall surface of the joint body 10, and a convex portion 15 is formed on the inner periphery thereof toward the inside. The convex portions 15 are projections that engage with a lid portion 20 to be described later, and four convex portions 15 are formed at equal intervals. When the lid 20 and the adapter 30 are inserted into the inspection port 14, the packing 40 attached to the adapter 30 extends over the entire inner circumference of the inspection port 14 above the convex portion 15 (on the storage chamber 13 side). And in a state where the lid portion 20 is attached, it is watertightly closed.
The storage chamber 13 is located between the inflow port 11 and the outflow port 12 and is directly above the inspection port 14 in a state where the inspection port 14 is arranged facing downward as shown in FIGS. 1 and 2. Formed in position. The storage chamber 13 includes a contact surface 16 and a guide portion 17 inside.
The contact surface 16 is an upstream end of the storage chamber 13 and is formed at the boundary with the inflow port 11. The adapter 30 is in contact with the packing 41 via the packing 41. The contact surface 16 is inclined so as to go from the inlet 11 to the outlet 12 as it proceeds from the inspection port 14 to the opposing wall surface (upward).
The guide portion 17 is a surface formed at a position facing the contact surface 16, and extends in the same direction as the insertion direction of the lid portion 20 and the adapter 30.

蓋部２０は上記点検口１４の内径と略同径となる外径を備えた円形の閉塞部材であって、点検口１４の内周と対向する蓋部２０の外周には、上記凸部１５と係合する溝部２１が形成されている。溝部２１は螺旋状に形成されており、溝部２１内に凸部１５が配置された状態で蓋部２０を時計回りに回動させると、溝部２１内を凸部１５が摺動することにより、点検口１４に固定される。又、蓋部２０の上面（収納室１３側）には係合部２２が突設されている。係合部２２は平面視円形であり、その端部において、全周に亘り外側に向けて突出するフランジ部分を有しており、アダプター３０と回動可能に連結されている。尚、蓋部２０は継ぎ手本体１０に取り付けられた状態において、外側に把持部２３が露出しており、使用者は当該把持部２３によって手動で蓋部２０を回動させることができる。 The lid portion 20 is a circular closing member having an outer diameter that is substantially the same as the inner diameter of the inspection port 14, and the convex portion 15 is formed on the outer periphery of the lid portion 20 facing the inner periphery of the inspection port 14. A groove portion 21 is formed to engage with. The groove portion 21 is formed in a spiral shape, and when the lid portion 20 is rotated clockwise in a state where the convex portion 15 is disposed in the groove portion 21, the convex portion 15 slides in the groove portion 21, It is fixed to the inspection port 14. Further, an engaging portion 22 is projected from the upper surface of the lid portion 20 (the storage chamber 13 side). The engaging portion 22 has a circular shape in plan view, and has an end portion having a flange portion that protrudes outward over the entire circumference, and is rotatably connected to the adapter 30. In addition, the grip part 23 is exposed to the outside when the cover part 20 is attached to the joint body 10, and the user can manually rotate the cover part 20 by the grip part 23.

アダプター３０は上記蓋部２０の係合部２２に係合する爪部３１と、収納室１３内に配置された際に排水流路を形成する流路形成部３２と、弁体５０を固定する固定部３３を備えている。又、アダプター３０は爪部３１の外側においてパッキン４０を、流路形成部３２の上流側端部にパッキン４１をそれぞれ有している。
爪部３１は内向きに突出する爪部分を有し、上記係合部２２と係合している状態において、蓋部２０とアダプター３０が相対回転可能となるように部材を連結する。
流路形成部３２は円筒状であって、アダプター３０が収納室１３内に配置された状態において、その上流側端部と下流側端部が流入口１１及び流出口１２とそれぞれ面一となるよう連続し、継ぎ手部材１内に排水流路を形成する。尚、流路形成部３２の上流側端部には、上記当接面１６と同一角度に傾斜する被当接面３４と、取り付け時にガイド部１７と当接する被ガイド部３５を備えており、被当接面３４には環状のパッキン４１が取り付けられている。又、図３に示すように、流路形成部３２は内周面から中心軸へ向けて支承部３６が延設されており、当該支承部３６によって固定部３３が流路形成部３２の中心軸上に配置されている。固定部３３は流路形成部３２の中心に形成され、軸方向に延設された棒状であって、固定部３３は全周に亘り排水流路の内周から離間した位置に配置され、弁体５０を流路形成部３２内の中心軸上に固定している。従って、点検口１４の向きを任意の角度に傾斜させた場合であっても、常に固定部３３と排水流路の底部との間は離間している。
尚、後述するように、流路形成部３２は弁体５０が取り付けられた状態において、弁体５０の止水部５２と流路形成部３２と全周に亘り当接し、無排水時及び下流側からの逆流発生時には排水流路が閉塞される。尚、以降において流路形成部３２の内周において上記止水部５２と水密に当接する箇所を弁座３７として記載する。即ち、本実施形態において弁座３７は排水流路の内周全周に亘り形成されている。 The adapter 30 fixes the claw part 31 that engages with the engaging part 22 of the lid part 20, the flow path forming part 32 that forms the drainage flow path when disposed in the storage chamber 13, and the valve body 50. A fixing portion 33 is provided. The adapter 30 has a packing 40 on the outside of the claw portion 31 and a packing 41 on the upstream end of the flow path forming portion 32.
The claw portion 31 has a claw portion that protrudes inward, and connects the members so that the lid portion 20 and the adapter 30 can be relatively rotated in a state where the claw portion 31 is engaged with the engagement portion 22.
The flow path forming portion 32 is cylindrical, and in a state where the adapter 30 is disposed in the storage chamber 13, the upstream end portion and the downstream end portion thereof are flush with the inlet port 11 and the outlet port 12, respectively. The drainage flow path is formed in the joint member 1 in a continuous manner. The upstream end portion of the flow path forming portion 32 includes a contact surface 34 that is inclined at the same angle as the contact surface 16 and a guided portion 35 that contacts the guide portion 17 when attached. An annular packing 41 is attached to the abutted surface 34. Further, as shown in FIG. 3, the flow passage forming portion 32 has a support portion 36 extending from the inner peripheral surface toward the central axis, and the fixed portion 33 is centered on the flow passage forming portion 32 by the support portion 36. It is arranged on the axis. The fixed portion 33 is formed at the center of the flow path forming portion 32 and has a rod shape extending in the axial direction. The fixed portion 33 is disposed at a position spaced from the inner periphery of the drainage flow channel over the entire circumference. The body 50 is fixed on the central axis in the flow path forming portion 32. Therefore, even if the direction of the inspection port 14 is inclined at an arbitrary angle, the fixed portion 33 and the bottom of the drainage channel are always separated from each other.
As will be described later, the flow path forming portion 32 abuts the water stop portion 52 and the flow path forming portion 32 of the valve body 50 over the entire circumference in a state where the valve body 50 is attached, When the backflow from the side occurs, the drainage channel is blocked. In the following description, a location where the water stop portion 52 is in watertight contact with the water stop portion 52 in the inner periphery of the flow path forming portion 32 will be described as a valve seat 37. That is, in this embodiment, the valve seat 37 is formed over the entire inner circumference of the drainage channel.

弁体５０はゴムやシリコン等の弾性材より成る略円錐状であって、上流側に配置された頂点部５１と、流路形成部３２の内周全周と当接する止水部５２と、頂点部５１と止水部５２を繋ぐ側壁部５３と、固定部３３に取り付けられる被固定部５４から成る。
止水部５２は弁体５０の下流側端部であって、その外径は流路形成部３２の内径と略同径又は流路形成部３２の内径よりやや大径であり、弁座３７と当接している。又、弁体５０が固定部３３に取り付けられている状態において、弁体５０の中心軸は流路形成部３２の中心軸と合致しており、止水部５２は弁体５０自身の弾性によって弁座３７に向けて均等に応力が加えられている。従って、止水部５２は自身の弾性を付勢手段として、弁座３７と全周に亘って均等に当接している。
側壁部５３は頂点部５１と止水部５２とを繋ぐように略円錐状に広がる薄膜状の傾斜壁である。当該側壁部５３に対して上流側から応力が加わった際には、側壁部５３が弁体５０の中心軸方向に向けて撓むことによって止水部５２が弁座３７から離間し、排水流路を開放する。この開放の際に、弁体５０の被固定部５４は固定部３３に固定されたまま、移動することは無い。一方、下流側からの応力が加わった際には側壁部５３に対して弁座３７へ向けて押し付けられる方向に応力が加わり、排水流路の閉塞を維持する。
被固定部５４は弁体５０の中心に形成された筒状部であり、固定部３３の周囲に嵌着されている。 The valve body 50 has a substantially conical shape made of an elastic material such as rubber or silicon, and has an apex portion 51 disposed on the upstream side, a water stop portion 52 that contacts the entire inner periphery of the flow path forming portion 32, and an apex. It consists of a side wall part 53 connecting the part 51 and the water stop part 52, and a fixed part 54 attached to the fixing part 33.
The water stop portion 52 is the downstream end portion of the valve body 50, and the outer diameter thereof is substantially the same as the inner diameter of the flow path forming portion 32 or slightly larger than the inner diameter of the flow path forming portion 32, and the valve seat 37 Abut. Further, in a state where the valve body 50 is attached to the fixed portion 33, the central axis of the valve body 50 is coincident with the central axis of the flow path forming portion 32, and the water stop portion 52 is caused by the elasticity of the valve body 50 itself. Stress is evenly applied toward the valve seat 37. Accordingly, the water stop portion 52 is in contact with the valve seat 37 evenly over the entire circumference using its own elasticity as a biasing means.
The side wall portion 53 is a thin-film inclined wall that spreads in a substantially conical shape so as to connect the apex portion 51 and the water stop portion 52. When stress is applied to the side wall 53 from the upstream side, the water stop 52 is separated from the valve seat 37 by bending the side wall 53 in the direction of the central axis of the valve body 50, and the drainage flow Open the road. During the opening, the fixed portion 54 of the valve body 50 remains fixed to the fixing portion 33 and does not move. On the other hand, when a stress is applied from the downstream side, the stress is applied in a direction in which the side wall portion 53 is pressed toward the valve seat 37, and the drainage flow path is maintained closed.
The fixed portion 54 is a cylindrical portion formed at the center of the valve body 50 and is fitted around the fixed portion 33.

以下に、本実施形態における継ぎ手部材１の組み立てについて詳述する。 Below, the assembly of the joint member 1 in this embodiment is explained in full detail.

まず、蓋部２０の係合部２２に対してアダプター３０の爪部３１を押し付け、蓋部２０とアダプター３０を係合させる。この時、爪部３１は係合部２２のフランジ部分を乗り越え、蓋部２０とアダプター３０は相対回転可能に接続される。
次に、アダプター３０の固定部３３に弁体５０を嵌着させる。この時、弁体５０の止水部５２が弁座３７に対して全周に亘り当接する。
次に、上記蓋部２０とアダプター３０を点検口１４から挿入し、溝部２１内に凸部１５が配置された状態で蓋部２０を時計回りに回動させ、アダプター３０と弁体５０を収納室１３内に配置することで組み立てが完了する。この時、継ぎ手本体１０に形成されたガイド部１７とアダプター３０に形成された被ガイド部３５によって、アダプター３０の傾斜角度や挿入方向が誘導される。又、当接面１６と被当接面３４がそれぞれ挿入方向に対して傾斜していることにより、上記挿入時には挿入方向に加えられた応力の一部が当接面１６と被当接面３４が互いに近接する方向の応力へと変換される。これによって、当接面１６と被当接面３４がパッキン４１を介して圧接されて水密状態となる。尚、挿入時に変換された力は当接面１６と被当接面３４が離間する方向にも働くが、ガイド部１７によってアダプター３０が当接面１６より離間することが防止されているため、確実に水密状態を維持することが可能となる。 First, the claw portion 31 of the adapter 30 is pressed against the engaging portion 22 of the lid portion 20 to engage the lid portion 20 and the adapter 30. At this time, the claw part 31 gets over the flange part of the engaging part 22, and the cover part 20 and the adapter 30 are connected so as to be relatively rotatable.
Next, the valve body 50 is fitted to the fixing portion 33 of the adapter 30. At this time, the water stop part 52 of the valve body 50 contacts the valve seat 37 over the entire circumference.
Next, the lid portion 20 and the adapter 30 are inserted from the inspection port 14, and the lid portion 20 is rotated clockwise with the convex portion 15 disposed in the groove portion 21, and the adapter 30 and the valve body 50 are accommodated. Assembling is completed by disposing in the chamber 13. At this time, the inclination angle and the insertion direction of the adapter 30 are guided by the guide portion 17 formed on the joint body 10 and the guided portion 35 formed on the adapter 30. Further, since the contact surface 16 and the contacted surface 34 are inclined with respect to the insertion direction, a part of the stress applied in the insertion direction during the insertion is caused by the contact surface 16 and the contacted surface 34. Are converted into stresses in directions close to each other. As a result, the contact surface 16 and the contacted surface 34 are brought into pressure contact with each other via the packing 41 to be in a watertight state. The force converted at the time of insertion also acts in the direction in which the contact surface 16 and the contacted surface 34 are separated from each other, but the adapter 30 is prevented from being separated from the contact surface 16 by the guide portion 17. It becomes possible to maintain a watertight state reliably.

上記組み立てが完了した状態において、流路形成部３２は上流側及び下流側の排水流路と全周に亘り面一となり、滑らかに連続する円筒状の排水流路を形成する。
尚、上記継ぎ手部材１のメンテナンスを行う際には、蓋部２０を反時計回りに回動させることで、点検口１４より蓋部２０とアダプター３０と弁体５０を取り出すことが可能となる。 In the state where the above assembly is completed, the flow path forming part 32 is flush with the upstream and downstream drain flow paths over the entire circumference, and forms a smoothly continuous cylindrical drain flow path.
When performing maintenance on the joint member 1, the lid 20, the adapter 30, and the valve body 50 can be taken out from the inspection port 14 by rotating the lid 20 counterclockwise.

以下に、本実施形態における継ぎ手部材１の動作について詳述する。 Below, operation | movement of the joint member 1 in this embodiment is explained in full detail.

まず、継ぎ手部材１に対して上流側からの排水が無く、下流側からも流体等の逆流が生じていない場合において、弁体５０は自身の弾性により止水部５２が弁座３７（流路形成部３２の内周全周）に対して当接している。これにより、継ぎ手部材１内部の排水流路は止水部５２において閉塞されており、下流側からの臭気や害虫等の逆流を防ぐことが可能となる。
設備機器等の使用により上流側より排水が継ぎ手部材１に対して排水が流入すると、当該排水が弁体５０の側壁部５３と当接する。この時、図４（ａ）に示すように、排水の水圧によって止水部５２が弁座３７より離間することで継ぎ手部材１内の排水流路が開放され、上記排水が下流側へと排出される。尚、上流側からの排水の流入が終了すると、弁体５０は自身の弾性力によって復元し、止水部５２が再び全周に亘り弁座３７に当接することで排水流路を閉塞する。尚、図４においては、上流側からの排水の流れや、下流側から流体等が生じた際に弁体５０に加わる応力を矢印にて示している（流体の流れ方向とは、流体の圧力つまり応力が作用する方向であるから、流体の流れ方向は事実上弁体に作用する応力の方向と同じものである）。
一方、継ぎ手部材１の下流側より流体等の逆流が生じた場合、当該逆流した流体が弁体５０の側壁部５３と下流側より当接する。この時、図４（ｂ）に示すように、下流側より当接した流体等は側壁部５３を流路形成部３２の内周に向けて押し付けるように応力を加える。従って、止水部５２は下流側からの流体等によって弁座３７に強く押し付けられることから、排水流路の閉塞が維持される。 First, when there is no drainage from the upstream side with respect to the joint member 1 and no backflow of fluid or the like is generated from the downstream side, the valve body 50 has its water stop portion 52 connected to the valve seat 37 (flow path by its own elasticity). It is in contact with the entire inner circumference of the forming portion 32. Thereby, the drainage flow path inside the joint member 1 is blocked at the water stop portion 52, and it becomes possible to prevent the backflow of odors and insects from the downstream side.
When drainage flows into the joint member 1 from the upstream side due to the use of equipment or the like, the drainage comes into contact with the side wall 53 of the valve body 50. At this time, as shown in FIG. 4A, the water stop portion 52 is separated from the valve seat 37 by the water pressure of the drainage, so that the drainage channel in the joint member 1 is opened, and the drainage is discharged to the downstream side. Is done. When the inflow of the drainage from the upstream side is completed, the valve body 50 is restored by its own elastic force, and the water stop portion 52 again contacts the valve seat 37 over the entire circumference to close the drainage channel. In FIG. 4, the flow of drainage from the upstream side and the stress applied to the valve body 50 when fluid or the like is generated from the downstream side are indicated by arrows (the fluid flow direction is the pressure of the fluid). In other words, since the stress acts in the direction, the flow direction of the fluid is substantially the same as the direction of the stress acting on the valve body).
On the other hand, when a backflow of fluid or the like occurs from the downstream side of the joint member 1, the backflowed fluid contacts the side wall portion 53 of the valve body 50 from the downstream side. At this time, as shown in FIG. 4B, the fluid or the like abutted from the downstream side applies stress so as to press the side wall portion 53 toward the inner periphery of the flow path forming portion 32. Accordingly, the water stop portion 52 is strongly pressed against the valve seat 37 by the fluid or the like from the downstream side, so that the drainage passage is kept closed.

上記第一実施形態にかかる本発明によれば、継ぎ手部材１の流入口１１、流出口１２とそれに接続される管体は円筒形状のため、継ぎ手部材１は管体の周面に沿って任意の方向に回転させた上で管体に接続させることができ、点検口１４の方向も施工段階では自在に変更できる（前述のように、第一実施形態では点検口１４は下方を向いて施工されている）。止水部５２は付勢手段によって流路形成部３２の内周全周に亘って当接していることから、止水部５２横引き管に接続された際において、点検口１４の方向が上方や下方や側方等、任意の向きとなるように配置されていても、常に流路形成部３２と水密に当接し、排水流路を閉塞可能である。又、点検口１４の位置をどのような方向へ向けた場合であっても止水部５２の下端である点Ｐが排水流路の底部に位置するとともに、止水部５２の上流側には逆勾配となる段差や傾斜が存在しないため、止水部５２の上流側に水残りが生じることを防ぐことが可能となる。又、固定部３３は全周に亘り排水流路の内周から離間した位置に配置されていることから、固定部３３に起因する水残りや排水流量の低下等を防ぐことができる。 According to the present invention according to the first embodiment, the inflow port 11 and the outflow port 12 of the joint member 1 and the pipe body connected thereto are cylindrical, so that the joint member 1 can be arbitrarily arranged along the peripheral surface of the pipe body. The direction of the inspection port 14 can be freely changed at the construction stage (as described above, in the first embodiment, the inspection port 14 faces downward and is installed). Have been). Since the water stop portion 52 is in contact with the entire inner circumference of the flow path forming portion 32 by the urging means, when connected to the water stop portion 52 horizontal pipe, the direction of the inspection port 14 is upward or Even if it is arranged so as to be in an arbitrary direction such as downward or sideward, it always comes into contact with the flow path forming portion 32 in a watertight manner, and the drainage flow path can be closed. Moreover, the point P which is the lower end of the water stop part 52 is located in the bottom part of the drainage flow path in any direction, and the upstream side of the water stop part 52 is located in any direction. Since there are no steps or slopes that have a reverse slope, it is possible to prevent water from remaining on the upstream side of the water stop portion 52. Moreover, since the fixing | fixed part 33 is arrange | positioned in the position spaced apart from the inner periphery of the drainage flow path over the perimeter, the fall of the water residue resulting from the fixing | fixed part 33, drainage flow volume, etc. can be prevented.

本発明の第一実施形態は以上であるが、本発明は上記第一実施形態の形状に限られるものではなく、発明の主旨を逸脱しない範囲において種々の形状変更を加えても良いものである。例えば、第一実施形態において、弁体は自身にお弾性力を付勢手段としていたが、図５乃至図８に示す第二実施形態のように、付勢手段はスプリング６やその他の機構であっても良い。 The first embodiment of the present invention is as described above. However, the present invention is not limited to the shape of the first embodiment, and various shape modifications may be added without departing from the gist of the invention. . For example, in the first embodiment, the valve body uses elastic force as an urging means. However, as in the second embodiment shown in FIGS. 5 to 8, the urging means is a spring 6 or other mechanism. There may be.

第二実施形態に係る継ぎ手部材１は図５に示すように、壁面に点検口１４を備える継ぎ手本体１０と、点検口１４を閉塞する蓋部２０と、蓋部２０と連結されて継ぎ手本体１０内に配置されるアダプター３０と、アダプター３０に取り付けられた弁体５０から成る。又、継ぎ手部材１はその上流側と下流側において、略水平方向に延設する横引き管に対して接続されている。尚、図５においては上流側及び下流側に接続された横引き管を二点鎖線で記載している。 As shown in FIG. 5, the joint member 1 according to the second embodiment includes a joint body 10 having an inspection port 14 on a wall surface, a lid portion 20 that closes the inspection port 14, and a joint body 10 that is connected to the lid portion 20. It consists of an adapter 30 disposed inside and a valve body 50 attached to the adapter 30. Further, the joint member 1 is connected to a horizontal pulling tube extending in a substantially horizontal direction on the upstream side and the downstream side thereof. In FIG. 5, the horizontal pulling pipes connected to the upstream side and the downstream side are indicated by two-dot chain lines.

継ぎ手本体１０は半透明の硬質樹脂から成る筒状のケーシングであって、その上流側端部及び下流側端部において、管体が接続される流入口１１と流出口１２を備えており、内部には後述するアダプター３０を収納する収納室１３が形成されているとともに、壁面には点検口１４が開口されている。尚、本実施形態において、継ぎ手本体１０は点検口１４が下方を向いている。
流入口１１と流出口１２は中心軸が合致する筒状であって、接着により接続される管体の外径とほぼ同径となる内径を有している。
点検口１４は継ぎ手本体１０の壁面に形成された円形の開口であって、その内周には内側に向けて凸部１５が形成されている。凸部１５は後述する蓋部２０と係合する突起であって、等間隔に４箇所の凸部１５が形成されている。又、点検口１４は蓋部２０及びアダプター３０が挿入された際、凸部１５の上方（収納室１３側）おいて、アダプター３０に取り付けられたパッキン４０が点検口１４の内周全周に亘って当接しており、蓋部２０が取り付けられた状態において水密に閉塞されている。
収納室１３は流入口１１と流出口１２の間であって、図５及び図６に示すように、点検口１４が下方を向いて配置されている状態において、当該点検口１４の直上となる位置に形成されている。又、収納室１３は内部に当接面１６とガイド部１７を備えている。
当接面１６は収納室１３の上流側端部であって、流入口１１との境界に形成されており、蓋部２０及びアダプター３０の挿入方向に対して傾斜し、図５に示すように、パッキン４１を介してアダプター３０と当接している。尚、当接面１６は点検口１４から対向する壁面（上方）に進むにつれて、流入口１１から流出口１２へ向かうようにして傾斜している。
ガイド部１７は上記当接面１６と対向する位置に形成された面であり、蓋部２０及びアダプター３０の挿入方向と同一方向に延設されている。 The joint body 10 is a cylindrical casing made of a translucent hard resin, and has an inlet 11 and an outlet 12 to which a pipe body is connected at an upstream end and a downstream end thereof. Is formed with a storage chamber 13 for storing an adapter 30 to be described later, and an inspection port 14 is opened in the wall surface. In the present embodiment, the joint body 10 has the inspection port 14 facing downward.
The inflow port 11 and the outflow port 12 have a cylindrical shape in which the central axes coincide with each other, and have an inner diameter that is substantially the same as the outer diameter of the pipe body connected by bonding.
The inspection port 14 is a circular opening formed in the wall surface of the joint body 10, and a convex portion 15 is formed on the inner periphery thereof toward the inside. The convex portions 15 are projections that engage with a lid portion 20 to be described later, and four convex portions 15 are formed at equal intervals. When the lid 20 and the adapter 30 are inserted into the inspection port 14, the packing 40 attached to the adapter 30 extends over the entire inner circumference of the inspection port 14 above the convex portion 15 (on the storage chamber 13 side). And in a state where the lid portion 20 is attached, it is watertightly closed.
The storage chamber 13 is located between the inflow port 11 and the outflow port 12, and as shown in FIGS. 5 and 6, when the inspection port 14 is arranged facing downward, the storage chamber 13 is directly above the inspection port 14. Formed in position. The storage chamber 13 includes a contact surface 16 and a guide portion 17 inside.
The contact surface 16 is an upstream end portion of the storage chamber 13 and is formed at the boundary with the inflow port 11 and is inclined with respect to the insertion direction of the lid portion 20 and the adapter 30 as shown in FIG. The adapter 30 is in contact with the packing 41 via the packing 41. The contact surface 16 is inclined so as to go from the inlet 11 to the outlet 12 as it proceeds from the inspection port 14 to the opposing wall surface (upward).
The guide portion 17 is a surface formed at a position facing the contact surface 16, and extends in the same direction as the insertion direction of the lid portion 20 and the adapter 30.

アダプター３０は上記蓋部２０の係合部２２に係合する爪部３１と、収納室１３内に配置された際に排水流路を形成する流路形成部３２と、弁体５０を固定する固定部３３を備えている。又、アダプター３０は爪部３１の外側においてパッキン４０を、流路形成部３２の上流側端部にパッキン４１をそれぞれ有している。
爪部３１は内向きに突出する爪部分を有し、上記係合部２２と係合している状態において、蓋部２０とアダプター３０が相対回転可能となるように部材を連結する。
流路形成部３２は円筒状であって、アダプター３０が収納室１３内に配置された状態において、その上流側端部と下流側端部が流入口１１及び流出口１２とそれぞれ連続し、継ぎ手部材１内に排水流路を形成する。尚、流路形成部３２の上流側端部には、上記当接面１６と同一角度に傾斜する被当接面３４と、取り付け時にガイド部１７と当接する被ガイド部３５を備えており、被当接面３４には環状のパッキン４１が取り付けられている。又、図７に示すように、流路形成部３２は内周面から中心軸へ向けて支承部３６が延設されており、当該支承部３６によって固定部３３が流路形成部３２の中心軸上に配置されている。固定部３３は流路形成部３２の中心に形成され、弁体５０を流路形成部３２内の中心軸上において、流路形成部３２の軸方向にのみ移動可能となるよう固定している。従って、点検口１４の向きを任意の角度に傾斜させた場合であっても、常に固定部３３と排水流路の底部との間は離間している。
尚、後述するように、流路形成部３２は弁体５０が取り付けられた状態において、弁体５０の止水部５２と全周に亘り当接する段状の弁座３７を有し、無排水時及び下流側からの逆流発生時には排水流路が閉塞される。即ち、本実施形態において弁座３７は排水流路の内周全周に亘り形成されている。 The adapter 30 fixes the claw part 31 that engages with the engaging part 22 of the lid part 20, the flow path forming part 32 that forms the drainage flow path when disposed in the storage chamber 13, and the valve body 50. A fixing portion 33 is provided. The adapter 30 has a packing 40 on the outside of the claw portion 31 and a packing 41 on the upstream end of the flow path forming portion 32.
The claw portion 31 has a claw portion that protrudes inward, and connects the members so that the lid portion 20 and the adapter 30 can be relatively rotated in a state where the claw portion 31 is engaged with the engagement portion 22.
The flow path forming portion 32 is cylindrical, and in the state where the adapter 30 is disposed in the storage chamber 13, the upstream end and the downstream end thereof are continuous with the inlet 11 and the outlet 12, respectively. A drainage channel is formed in the member 1. The upstream end portion of the flow path forming portion 32 includes a contact surface 34 that is inclined at the same angle as the contact surface 16 and a guided portion 35 that contacts the guide portion 17 when attached. An annular packing 41 is attached to the abutted surface 34. As shown in FIG. 7, the flow path forming portion 32 has a support portion 36 extending from the inner peripheral surface toward the central axis, and the support portion 36 causes the fixed portion 33 to be the center of the flow path forming portion 32. It is arranged on the axis. The fixing part 33 is formed at the center of the flow path forming part 32, and fixes the valve body 50 so as to be movable only in the axial direction of the flow path forming part 32 on the central axis in the flow path forming part 32. . Therefore, even if the direction of the inspection port 14 is inclined at an arbitrary angle, the fixed portion 33 and the bottom of the drainage channel are always separated from each other.
As will be described later, the flow path forming portion 32 has a stepped valve seat 37 that contacts the water stop portion 52 of the valve body 50 over the entire circumference in a state in which the valve body 50 is attached, and has no drainage. The drainage flow path is closed at the time and when the backflow occurs from the downstream side. That is, in this embodiment, the valve seat 37 is formed over the entire inner circumference of the drainage channel.

弁体５０はゴムやシリコン等の弾性材より成り、弁座３７と全周に亘り当接する止水部５２と、固定部３３に対して流路形成部３２の軸方向にのみ移動可能となるよう固定される被固定部５４を有している。又、弁体５０は固定部３３と止水部５２との間に配置されたスプリング６によって、常時弁座３７へと付勢されている。 The valve body 50 is made of an elastic material such as rubber or silicon, and can move only in the axial direction of the flow path forming portion 32 with respect to the water stop portion 52 that contacts the valve seat 37 over the entire circumference and the fixed portion 33. It has the to-be-fixed part 54 fixed so. Further, the valve body 50 is constantly urged toward the valve seat 37 by the spring 6 disposed between the fixed portion 33 and the water stop portion 52.

まず、継ぎ手部材１に対して上流側からの排水が無く、下流側からも流体等の逆流が生じていない場合において、弁体５０はスプリング６の反発により止水部５２が弁座３７に対して全周に亘り当接している。これにより、継ぎ手部材１内部の排水流路は止水部５２において閉塞されており、下流側からの臭気や害虫等の逆流を防ぐことが可能となる。
設備機器等の使用により上流側より排水が継ぎ手部材１に対して排水が流入すると、当該排水が弁体５０の止水部５２と当接する。この時、図８（ａ）に示すように、排水の水圧によって止水部５２が弁座３７より離間することで継ぎ手部材１内の排水流路が開放され、上記排水が下流側へと排出される。尚、上流側からの排水の流入が終了すると、弁体５０はスプリング６の反発によって復元し、止水部５２が再び全周に亘り弁座３７に当接することで排水流路を閉塞する。尚、図７においては、上流側からの排水の流れや、下流側から流体等が生じた際に弁体５０に加わる応力を矢印にて示している。（流体の流れ方向とは、流体の圧力つまり応力が作用する方向であるから、流体の流れ方向は事実上弁体に作用する応力の方向と同じものである）。
一方、継ぎ手部材１の下流側より流体等の逆流が生じた場合、当該逆流した流体が弁体５０の止水部５２と下流側より当接する。この時、図８（ｂ）に示すように、下流側より当接した流体等は止水部５２を弁座３７に向けて押し付けるように応力を加える。従って、止水部５２は下流側からの流体等によって弁座３７に強く押し付けられることから、排水流路の閉塞が維持される。 First, when there is no drainage from the upstream side with respect to the joint member 1 and no backflow of fluid or the like is generated from the downstream side, the water stop portion 52 is moved from the valve seat 37 to the valve seat 37 by the repulsion of the spring 6. In contact with the entire circumference. Thereby, the drainage flow path inside the joint member 1 is blocked at the water stop portion 52, and it becomes possible to prevent the backflow of odors and insects from the downstream side.
When drainage flows into the joint member 1 from the upstream side due to use of equipment or the like, the drainage comes into contact with the water stop portion 52 of the valve body 50. At this time, as shown in FIG. 8A, the water stop portion 52 is separated from the valve seat 37 by the water pressure of the drainage, so that the drainage flow path in the joint member 1 is opened, and the drainage is discharged to the downstream side. Is done. When the inflow of the drainage from the upstream side is completed, the valve body 50 is restored by the repulsion of the spring 6, and the drainage flow path is closed by the water stop portion 52 coming into contact with the valve seat 37 over the entire circumference. In FIG. 7, the flow of drainage from the upstream side and the stress applied to the valve body 50 when fluid or the like is generated from the downstream side are indicated by arrows. (Because the fluid flow direction is the direction in which the fluid pressure or stress acts, the fluid flow direction is substantially the same as the stress direction acting on the valve body).
On the other hand, when a backflow of fluid or the like occurs from the downstream side of the joint member 1, the backflowed fluid comes into contact with the water stop portion 52 of the valve body 50 from the downstream side. At this time, as shown in FIG. 8B, the fluid or the like abutted from the downstream side applies stress so as to press the water stop portion 52 toward the valve seat 37. Accordingly, the water stop portion 52 is strongly pressed against the valve seat 37 by the fluid or the like from the downstream side, so that the drainage passage is kept closed.

上記第二実施形態にかかる本発明によれば、止水部５２は付勢手段によって止水部５２の全周に亘って当接していることから、継ぎ手部材１が横引き管に接続された際において、点検口１４の方向が上方や下方や側方等、任意の向きとなるように配置されていても、常に流路形成部３２と水密に当接し、排水流路を閉塞可能である。又、点検口１４の位置をどのような方向へ向けた場合であっても止水部５２の下端である点Ｐが排水流路の底部に位置するとともに、止水部５２の上流側には逆勾配となる段差や傾斜が存在しないため、止水部５２の上流側に水残りが生じることを防ぐことが可能となる。又、固定部３３は全周に亘り排水流路の内周から離間した位置に配置されていることから、固定部３３に起因する水残りや排水流量の低下等を防ぐことができる。 According to the present invention according to the second embodiment, since the water stop portion 52 is in contact with the entire circumference of the water stop portion 52 by the biasing means, the joint member 1 is connected to the horizontal pulling pipe. At this time, even if the inspection port 14 is arranged in any direction, such as upward, downward, or sideways, it always comes into contact with the flow path forming portion 32 in a watertight manner and can close the drain flow path. . Moreover, the point P which is the lower end of the water stop part 52 is located in the bottom part of the drainage flow path in any direction, and the upstream side of the water stop part 52 is located in any direction. Since there are no steps or slopes that have a reverse slope, it is possible to prevent water from remaining on the upstream side of the water stop portion 52. Moreover, since the fixing | fixed part 33 is arrange | positioned in the position spaced apart from the inner periphery of the drainage flow path over the perimeter, the fall of the water residue resulting from the fixing | fixed part 33, drainage flow volume, etc. can be prevented.

又、図９に示す第三実施形態のように、弁体５０に対しリブ５５を設け、剛性を高めることによって流体等の逆流時における弁体５０の変形を防ぐよう構成しても良い。 Further, as in the third embodiment shown in FIG. 9, ribs 55 may be provided on the valve body 50 to increase the rigidity so as to prevent the valve body 50 from being deformed at the time of backflow of fluid or the like.

又、図１０に示す第四実施形態のように、流路形成部３２の一部に、下流側が拡径するように形成された段部を形成し、弁座３７として止水部５２が当接するように構成しても良い。当該第四実施形態においては、側壁部５３の一部が止水部５２として機能し、弁座３７と当接する。このように形成することにより、成形状況等の理由により弁体５０の形状が所定よりも大きい、又は小さい場合であったとしても、当該形状の差に左右されず、確実に止水部５２を弁座３７の全周に亘り当接させることが可能となる。 Further, as in the fourth embodiment shown in FIG. 10, a step portion formed so that the downstream side has a larger diameter is formed in a part of the flow path forming portion 32, and the water stop portion 52 is applied as the valve seat 37. You may comprise so that it may contact | connect. In the fourth embodiment, a part of the side wall portion 53 functions as the water stop portion 52 and comes into contact with the valve seat 37. By forming in this way, even if the shape of the valve body 50 is larger or smaller than a predetermined value for reasons such as molding conditions, the water stop portion 52 is surely not affected by the difference in the shape. It is possible to make contact over the entire circumference of the valve seat 37.

又、点検口１４は流路形成部３２又は継ぎ手本体１０の側面にのみ形成される構造に限られるものではない。即ち、図１１に示す第五実施形態のように、点検口１４が流路形成部３２の軸方向に形成されている等、点検口１４が形成される位置は継ぎ手部材１が取り付けられる排水配管や施工箇所によって種々の変更が加えられても良い。尚、図１１に記載された第五実施形態は横引き管に接続された継ぎ手部材１の上半分を切断した断面図であり、上流側及び下流側の管体は横引き管である。そして、図１１（ａ）、図１１（ｂ）に示すように、継ぎ手部材１は管体のレイアウトを変更することにより点検口１４の向きを変更させることが可能であり、当該点検口１４の向きに関わらず排水流路を閉塞可能となっている。 Further, the inspection port 14 is not limited to a structure formed only on the flow path forming portion 32 or the side surface of the joint body 10. That is, as in the fifth embodiment shown in FIG. 11, the inspection port 14 is formed in the axial direction of the flow path forming portion 32, and the position where the inspection port 14 is formed is a drainage pipe to which the joint member 1 is attached. Various changes may be added depending on the construction location. In addition, 5th embodiment described in FIG. 11 is sectional drawing which cut | disconnected the upper half of the coupling member 1 connected to the horizontal drawing pipe, and the upstream and downstream pipes are horizontal drawing pipes. 11 (a) and 11 (b), the joint member 1 can change the orientation of the inspection port 14 by changing the layout of the pipe body. Regardless of the direction, the drainage channel can be closed.

又、図１２に示す第六実施形態のように、継ぎ手部材１に偏芯管等を取り付けても良い。これにより、弁体５０に上流側からの排水による水圧を付与し易くなり、弁体５０の動作が更に安定し、水残りを防ぐことが可能となる。尚、図１２においては上流側にのみ偏芯管を取り付けているが、下流側にも偏芯管を取り付けても良い。又、偏芯管は継ぎ手部材１と一体に形成していても良い。 Moreover, you may attach an eccentric tube etc. to the joint member 1 like 6th embodiment shown in FIG. Thereby, it becomes easy to apply the water pressure by the waste_water | drain from an upstream to the valve body 50, the operation | movement of the valve body 50 becomes still more stable, and it becomes possible to prevent remaining water. In FIG. 12, the eccentric tube is attached only to the upstream side, but the eccentric tube may be attached to the downstream side. The eccentric tube may be formed integrally with the joint member 1.

本発明の実施形態は以上であるが、図１３に示すように、本発明の継ぎ手部材１が空調機器１００から連続する排水配管に取り付けられた場合には、点検口１４が下方に向くように取り付けを行うことにより、階下からのメンテナンスが容易となる。即ち、上記空調機器１００から連続する排水配管に継ぎ手部材１が取り付けられている場合、作業者は階下の天井に設けられた点検用の蓋１１０を取り外し、下方から天井裏に配置された継ぎ手部材１メンテナンスを行う。この時、本発明の継ぎ手部材１を、点検口１４が下方を向くように取り付けることにより、容易に蓋部２０を取り外して内部の清掃等を行うことが可能となる。
又、図１４に示すように、継ぎ手部材１が冷凍冷蔵庫２００から連続する排水配管に取り付けられた場合には、点検口１４が水平方向を向くように取り付けを行うことにより、側方からのメンテナンスが容易となる。即ち、上記冷凍冷蔵庫２００から連続する排水配管に継ぎ手部材１が取り付けられている場合、作業者は冷凍冷蔵庫２００の下方より継ぎ手部材１のメンテナンスを行う。この時、本発明の継ぎ手部材１を、点検口１４が側方を向くように取り付けることにより、継ぎ手部材１の上方に配置された冷凍冷蔵庫に干渉することなく、内部の清掃等を行うことが可能となる。
尚、上記各実施形態における継ぎ手部材１は弁体５０のみによって逆流を防止しており、封水を使用していないことから、蓋部２０の取り外しの際に使用者に排水がかかったり、周囲が排水によって汚れてしまったりすることはない。
又、上記各実施形態における継ぎ手部材１は、横引き配管のみ接続されるものではない。即ち、略垂直方向に排水流路が形成された縦配管に接続されても良い。 Although the embodiment of the present invention is as described above, as shown in FIG. 13, when the joint member 1 of the present invention is attached to the drainage pipe continuous from the air conditioner 100, the inspection port 14 faces downward. By installing, maintenance from the downstairs becomes easy. That is, when the joint member 1 is attached to the continuous drainage pipe from the air conditioner 100, the operator removes the inspection lid 110 provided on the ceiling below the floor, and the joint member disposed on the back of the ceiling from below. 1 Perform maintenance. At this time, by attaching the joint member 1 of the present invention so that the inspection port 14 faces downward, it is possible to easily remove the lid portion 20 and perform internal cleaning or the like.
Moreover, as shown in FIG. 14, when the joint member 1 is attached to the drainage pipe continuous from the refrigerator-freezer 200, the maintenance is performed from the side by attaching the inspection port 14 so as to face the horizontal direction. Becomes easy. That is, when the joint member 1 is attached to the drainage pipe continuous from the refrigerator-freezer 200, the operator performs maintenance on the joint member 1 from below the refrigerator-freezer 200. At this time, by attaching the joint member 1 of the present invention so that the inspection port 14 faces to the side, the inside cleaning or the like can be performed without interfering with the refrigerator-freezer disposed above the joint member 1. It becomes possible.
In addition, since the joint member 1 in each said embodiment is preventing the backflow only by the valve body 50, and does not use sealing water, when a lid | cover part 20 is removed, a user drains or the circumference | surroundings Will not get dirty by drainage.
Further, the joint member 1 in each of the above embodiments is not connected only to the horizontal piping. That is, you may connect to the vertical piping in which the drainage flow path was formed in the substantially perpendicular direction.

１継ぎ手部材
１０継ぎ手本体
１１流入口
１２流出口
１３収納室
１４点検口
１５凸部
１６当接面
１７ガイド部
２０蓋部
２１溝部
２２係合部
２３把持部
３０アダプター
３１爪部
３２流路形成部
３３固定部
３４被当接面
３５被ガイド部
３６支承部
３７弁座
４０パッキン
４１パッキン
５０弁体
５１頂点部
５２止水部
５３側壁部
５４被固定部
５５リブ
６スプリング
１００空調機器
１１０蓋
２００冷凍冷蔵庫 DESCRIPTION OF SYMBOLS 1 Joint member 10 Joint main body 11 Inlet 12 Outlet 13 Storage chamber 14 Inspection port 15 Protrusion part 16 Contact surface 17 Guide part 20 Lid part 21 Groove part 22 Engagement part 23 Grip part 30 Adapter 31 Claw part 32 Flow path formation part 33 fixed portion 34 contacted surface 35 guided portion 36 bearing portion 37 valve seat 40 packing 41 packing 50 valve body 51 apex portion 52 water stop portion 53 side wall portion 54 fixed portion 55 rib 6 spring 100 air conditioner 110 lid 200 refrigeration refrigerator

Claims

A joint member having a pipe connected to an end thereof,
An inspection port formed on the wall surface;
A lid that closes the inspection port;
It is arranged inside the joint member from the inspection port, and has a valve body that prevents back flow of fluid by contacting the valve seat,
The valve body has a water stop portion that abuts the valve seat and closes the drainage flow path,
The water stop portion is characterized in that the drainage flow path can be closed even when the direction of the inspection port is inclined at an arbitrary angle when the joint member is connected to the horizontal pipe. Joint member to be used.

The joint member according to claim 1, wherein the valve seat is formed over the entire inner circumference of the drainage channel.

The joint member according to claim 1 or 2, wherein stress is applied to the water stop portion so as to contact the valve seat by an urging means.

The valve body has a substantially conical shape,
The joint member according to any one of claims 1 to 3, wherein the outer surface functions as a water stop portion that comes into contact with the valve seat.

The valve body is fixed to a fixing portion provided at a position separated from the inner periphery of the drainage flow path, and when the joint member is connected to the horizontal pulling pipe, the direction of the inspection port is inclined at an arbitrary angle. Even if it is a case, between the fixing | fixed part and the bottom part of a drainage flow path is always spaced apart, The joint member as described in any one of Claim 1 thru | or 4 characterized by the above-mentioned.

In the state where the joint member is connected to the horizontal pipe,
The drainage pipe according to any one of claims 1 to 5, wherein the lower end of the water stop part is located at the bottom part of the drainage channel regardless of the direction of the inspection port.

The joint member is
With an adapter that is inserted into the joint member from the inspection port,
The drainage according to any one of claims 1 to 6, wherein the adapter constitutes a part of a drainage flow path when disposed inside the joint member, and has a valve body and a valve seat. Plumbing.