JP6194505B2

JP6194505B2 - Self-sealing valve member and joint member

Info

Publication number: JP6194505B2
Application number: JP2012256948A
Authority: JP
Inventors: 瀬川　めぐみ; めぐみ瀬川
Original assignee: 丸一株式会社
Priority date: 2012-11-22
Filing date: 2012-11-22
Publication date: 2017-09-13
Anticipated expiration: 2032-11-22
Also published as: JP2014105719A

Description

本発明は、気体や液体等の流体の逆流防止や、排水管において封水を必要とせずに下流からの臭気などの逆流を防止する為に用いられる自封式弁部材及び継ぎ手部材に関する。 The present invention relates to a self-sealing valve member and a joint member that are used to prevent backflow of fluid such as gas and liquid, and to prevent backflow of odors and the like from downstream without requiring sealing water in a drain pipe.

従来よく知られた自封式弁部材としては、例えば図３５に示したものがある。この従来の自封式弁部材は、上方向から下方向へ向かって縦方向に流体が通過する流体管に用いられている。また、自封式弁部材は弾性を有する樹脂により形成されており、上流側の端部が開放された軸方向視円形の開口部が形成されるとともに、下流側の端部はこの開口部から連続して形成され側部が閉じられた一対の弁体の先端を重ねた形状となっている。これにより、外力が加わっていない場合及び下流側から圧力が加わった場合には、弁体の先端が重ね合わされた状態を維持して、下流からの臭気などの逆流を防ぎ、上流側から排水が流入した場合には、弁体の先端が離反して排水を下流側に流下させることができる。また、当該従来例の自封式弁体が配置されているのは断面視円形の管体内に配置されている。（特許文献１） A well-known self-sealing valve member is shown in FIG. 35, for example. This conventional self-sealing valve member is used for a fluid pipe through which a fluid passes in a vertical direction from an upper direction to a lower direction. Further, the self-sealing valve member is formed of an elastic resin, and an opening having a circular shape as viewed in the axial direction with the upstream end opened is formed, and the downstream end is continuous from the opening. The tip of a pair of valve bodies that are formed in this manner and whose side portions are closed is overlapped. As a result, when no external force is applied and when pressure is applied from the downstream side, the state where the tip of the valve body is overlapped is maintained to prevent back flow such as odor from the downstream side, and drainage from the upstream side. When it flows in, the front-end | tip of a valve body leaves | separates and a waste_water | drain can flow down downstream. Further, the self-sealing valve body of the conventional example is disposed in a tubular body having a circular cross-sectional view. (Patent Document 1)

また、このほか従来よく知られた自封式弁部材としては、例えば図３６に示したものもある。この従来例の自封式弁部材は、略水平方向へ向かって横方向に流体が通過する流体管に用いられている。また、自封式弁部材は、弾性を有する樹脂により形成されており、上流側の端部が開放された軸方向視円形の開口部が形成されるとともに、下流側の端部はこの開口部から連続して形成され側部が閉じられた一対の弁体の先端を重ねた形状となっている。このとき、軸方向視弁体の当接面は三日月形状をしている。従って、断面視下側の弁体は管体の底面に沿うように配置され、その下側弁体に重ねて上側弁体が位置している。これにより、外力が加わっていない場合及び下流側から圧力が加わった場合には、弁体の先端が重ね合わされた状態を維持して、下流からの臭気などの逆流を防ぎ、上流側から排水が流入した場合には、弁体の先端が離反して排水を下流側に流下させることができる。（特許文献２） Other well-known self-sealing valve members are shown in FIG. 36, for example. The conventional self-sealing valve member is used in a fluid pipe through which a fluid passes in a horizontal direction toward a substantially horizontal direction. Further, the self-sealing valve member is formed of an elastic resin, and an opening having a circular shape as viewed in the axial direction in which an upstream end is opened is formed, and a downstream end is formed from the opening. It is the shape which accumulated the front-end | tip of a pair of valve body which was formed continuously and the side part was closed. At this time, the contact surface of the axial valve body has a crescent shape. Therefore, the valve body on the lower side in the cross-sectional view is arranged along the bottom surface of the tube body, and the upper valve body is positioned so as to overlap the lower valve body. As a result, when no external force is applied and when pressure is applied from the downstream side, the state where the tip of the valve body is overlapped is maintained to prevent back flow such as odor from the downstream side, and drainage from the upstream side. When it flows in, the front-end | tip of a valve body leaves | separates and a waste_water | drain can flow down downstream. (Patent Document 2)

また、このほか従来よく知られた自封式弁部材としては、例えば図３７に示したものもある。この従来例の自封式弁部材は、略水平方向へ向かって横方向に流体が通過する流体管に用いられている。また、自封式弁部材は、弾性を有する樹脂により形成されており、上流側の端部が開放された軸方向視円形の開口部が形成されるとともに、下流側の端部はこの開口部から連続して形成され側部が閉じられた一対の弁体の先端を重ねた形状となっている。このとき、軸方向視弁体の当接面は管体の下面に近い箇所で水平に配置されている。従って、断面視弁体は管体の底面に沿うように配置される。これにより、外力が加わっていない場合及び下流側から圧力が加わった場合には、弁体の先端が重ね合わされた状態を維持して、下流からの臭気などの逆流を防ぎ、上流側から排水が流入した場合には、弁体の先端が離反して排水を下流側に流下させることができる。（特許文献３） Other well-known self-sealing valve members are shown in FIG. 37, for example. The conventional self-sealing valve member is used in a fluid pipe through which a fluid passes in a horizontal direction toward a substantially horizontal direction. Further, the self-sealing valve member is formed of an elastic resin, and an opening having a circular shape as viewed in the axial direction in which an upstream end is opened is formed, and a downstream end is formed from the opening. It is the shape which accumulated the front-end | tip of a pair of valve body which was formed continuously and the side part was closed. At this time, the contact surface of the axial valve body is disposed horizontally at a location near the lower surface of the tubular body. Therefore, the cross-sectional view valve body is disposed along the bottom surface of the tubular body. As a result, when no external force is applied and when pressure is applied from the downstream side, the state where the tip of the valve body is overlapped is maintained to prevent back flow such as odor from the downstream side, and drainage from the upstream side. When it flows in, the front-end | tip of a valve body leaves | separates and a waste_water | drain can flow down downstream. (Patent Document 3)

実公昭６０−２４７８８号公報Japanese Utility Model Publication No. 60-24788 特表２００２−５００３３２号公報Japanese translation of PCT publication No. 2002-500332 特開２０１２−１３２２３１号公報JP 2012-132231 A

排水管、給水管、通気管などの流体管において一般的に要求される事項として排水流量や給水流量等の増加があげられる。しかしながら、一般的に、排水管、給水管、通気管などの流体管が配置される場所は、床下や壁面、天井裏などに施工される場合が多く、設置個所によって高さ寸法や横幅寸法などが制限されてしまうことが多い。
また、前記した従来例（特許文献１）の一般的な自封式弁部材の形状であると、管体の形状が軸方向視円形であることと、自封式弁部材の弁体が開口した面積分しか排水などの流体が通過しないため、その分排水流量が悪化する。よって、自封式弁部材を用いた配管において、排水などの流量を増加させる必要があった。
また、管体を略水平方向に配置した場合においても自封式弁部材を使用するが、前記特許文献１に記載の自封式弁部材を用いると、弁体の当接面が軸方向視中心を通る直線状に構成される為、断面視当接面が管体の底面より上方に配置されてしまい、管体の下面から弁体の当接面まで高さが出来、管体の下面から弁体の当接面までの高さ分まで水残りが発生してしまう。弁体の下流もしくは上流部分に水残りが発生してしまう。よって内部に異臭やゴミが対流してゴミ詰まりやヌメリ発生などの問題がある。
そこで、特許文献２の自封式弁部材を略水平の管体に用いれば、弁体の当接面が管体の最下面に位置するため水残りがしないように見受けられるが、当該自封式弁部材は、円形の開口部から連続して構成される為、弁体の当接面が軸方向視三日月形状となっており、当該三日月状の弁体の当接面は、無理な曲面状の曲げ応力が既に加わっている。相当な水圧や気圧が加わらないと弁体の当接面が開かない。そうすると、流体が弱流であったり、少量の水量であれば弁体が開口せず、本来の自封式弁部材としての機能を果たせないこととなる。
また、特許文献３に記載の自封式弁部材であれば、上記特許文献２のように弁体の当接面が直線状に構成されているため少量の水量であったり水圧が弱くても弁体は開口するが、当該自封式弁部材は開口部が軸方向視円形状であるため、出来るだけ弁体の当接面を管体の下面に近づけようとしているものの、形状的に管体の下面よりも上方に弁体の当接面を配置しないと構成できない。管体の下面と同じ高さに弁体の当接面を配置しようとした場合、開口は点になってしまう。従って、やはり弁体の当接面（開閉面）は管体よりも若干上方に位置してしまい、その分、弁体の上流または下流に弁体の当接面までの高さ分水残りが発生してしまうという問題があった。
As a matter generally required in fluid pipes such as a drain pipe, a water supply pipe, and a vent pipe, there is an increase in a drainage flow rate, a feed water flow rate, and the like. However, in general, fluid pipes such as drain pipes, water supply pipes, and vent pipes are often installed under the floor, on the wall surface, or behind the ceiling. Depending on the installation location, the height dimension, width dimension, etc. Is often limited.
Moreover, when it is the shape of the general self-sealing valve member of the above-described conventional example (Patent Document 1), the shape of the tubular body is circular in the axial direction, and the area of the valve body of the self-sealing valve member is opened. Since only a part of fluid such as drainage passes, the drainage flow rate is deteriorated. Therefore, in the piping using the self-sealing valve member, it is necessary to increase the flow rate of drainage or the like.
Further, the self-sealing valve member is used even when the pipe body is arranged in a substantially horizontal direction. However, when the self-sealing valve member described in Patent Document 1 is used, the contact surface of the valve body is centered in the axial direction. Because it is configured in a straight line that passes, the cross-sectional contact surface is placed above the bottom surface of the tube body, and the height from the bottom surface of the tube body to the contact surface of the valve body can be increased. Water remains up to the height up to the contact surface of the body. Water remains in the downstream or upstream part of the valve body. Therefore, there are problems such as generation of clogs and slime due to odor and dust convection inside.
Therefore, if the self-sealing valve member of Patent Document 2 is used for a substantially horizontal pipe body, the contact surface of the valve body is located on the lowermost surface of the pipe body, so that it seems that no water remains, but the self-sealing valve Since the member is configured continuously from a circular opening, the contact surface of the valve body has a crescent shape as viewed in the axial direction, and the contact surface of the crescent-shaped valve body has an unreasonably curved shape. Bending stress has already been applied. The contact surface of the valve body will not open unless considerable water pressure or atmospheric pressure is applied. If it does so, if a fluid is a weak flow or a small amount of water, a valve body will not open and it will not fulfill the function as an original self-sealing valve member.
Moreover, if it is a self-sealing valve member of patent document 3, since the contact surface of a valve body is comprised linearly like the said patent document 2, even if it is a small amount of water or a water pressure is weak, it is a valve. Although the body opens, since the opening of the self-sealing valve member has a circular shape in the axial direction, the contact surface of the valve body is intended to be as close as possible to the lower surface of the tubular body. It cannot be configured unless the contact surface of the valve body is disposed above the lower surface. When the contact surface of the valve body is arranged at the same height as the lower surface of the tube body, the opening becomes a point. Therefore, the contact surface (opening / closing surface) of the valve body is also located slightly above the pipe body, and accordingly, the remaining water for the height to the contact surface of the valve body is upstream or downstream of the valve body. There was a problem that it occurred .

以上のことから、本願発明は以下の点課題を解決する。
１．寸法的に制限がある場所の配管に用いられる自封式弁部材において、内部の流体の流量を増加させることのできる自封式弁部材とその継ぎ手部材。
２．略水平方向に配置された配管に用いられる自封式弁部材であって、内部に水残りがしない自封式弁部材。 From the above, the present invention solves the following problems.
1. A self-sealing valve member that can increase the flow rate of an internal fluid in a self-sealing valve member used for piping in a place where dimensions are limited, and a joint member thereof.
2. A self-sealing valve member used for piping arranged in a substantially horizontal direction and having no water remaining inside.

請求項１に記載の自封式弁部材及び継ぎ手部材は、略垂直に配設された配管１に接続される継ぎ手部材であって、内部に自封式弁部材が配置されて、軸方向視非円形形状としたケーシング２２と、上流からの流体がケーシング２２内に流入する流入部２３と、ケーシング２２内の流体を下流へと流出させる流出部２４と、から構成される継ぎ手部材と、該継ぎ手部材内に配置される自封式弁部材であって、上流側に形成された軸方向の形状を非円形形状とし、配管１よりも流路面積を大きく形成された開口部３１と、前記開口部３１から連続して形成され、先端が互いに当接する弾性の板状に形成された一対の弁体３３と、から構成される自封式弁部材と、から構成される自封式弁部材及び継ぎ手部材において、開口部３１の外側面が前記ケーシング２２の内側面と略合致する形状としたことを特徴とする自封式弁部材及び継ぎ手部材である。
The self-sealing valve member and the joint member according to claim 1 are joint members connected to the pipe 1 arranged substantially vertically, and the self-sealing valve member is disposed inside and is non-circular in an axial view. A joint member including a casing 22 having a shape, an inflow portion 23 through which fluid from the upstream flows into the casing 22, and an outflow portion 24 through which the fluid in the casing 22 flows out downstream , and the joint member A self-sealing valve member disposed in the opening 31 having an axial shape formed on the upstream side in a non-circular shape and having a flow passage area larger than the pipe 1, and the opening 31 In a self-sealing valve member and a joint member composed of a pair of valve bodies 33 formed in a continuous shape from each other and formed in a resilient plate shape whose tips abut against each other , The outer surface of the opening 31 is A self-sealing type valve member and a joint member, characterized in that the inner surface substantially matching the shape of the single 22.

請求項２に記載の自封式弁部材及び継ぎ手部材は、略水平に配設された配管１に接続される継ぎ手部材内に配置され、上流側に形成された軸方向の形状を非円形形状とした開口部３１と、前記開口部３１から連続して形成され、先端が互いに当接する弾性の板状に形成された一対の弁体３３と、から構成される自封式弁部材であって、前記開口部３１の下面に、少なくとも一部が平面形状に構成されている底面部３２を備えると共に、前記開口部３１の底面部３２から弁体３３方向へ向かって連続して下側の弁体３３を形成したことを特徴とする自封式弁部材と、前記自封式弁部材が内部に配置される継ぎ手部材であって、内部に自封式弁部材が配置されるケーシング２２と、上流からの流体がケーシング２２内に流入する流入部２３と、ケーシング２２内の流体を下流へと流出させる流出部２４と、から構成すると共に、前記ケーシング２２の下面を自封式弁部材の底面部３２形状と略合致する形状からなる下面部２２１とし、該下面部２２１は配管１の下面よりも低い位置に配置されるとともに、底面部３２及び弁体３３が下面部２２１上に配置されることを特徴とする自封式弁部材及び継ぎ手部材である。
The self-sealing valve member and the joint member according to claim 2 are disposed in a joint member connected to the pipe 1 disposed substantially horizontally, and the axial shape formed on the upstream side is a non-circular shape. A self-sealing valve member comprising: an opening portion 31; and a pair of valve bodies 33 formed continuously from the opening portion 31 and having an elastic plate shape whose tips are in contact with each other, The lower surface of the opening 31 is provided with a bottom surface portion 32 that is at least partially configured in a planar shape, and the lower valve body 33 continuously from the bottom surface portion 32 of the opening 31 toward the valve body 33. A self-sealing valve member, a joint member in which the self-sealing valve member is disposed, a casing 22 in which the self-sealing valve member is disposed, and a fluid from upstream An inflow portion 23 that flows into the casing 22, and a An outflow portion 24 for allowing the fluid in the sink 22 to flow downstream, and the lower surface of the casing 22 is a lower surface portion 221 having a shape substantially matching the shape of the bottom surface portion 32 of the self-sealing valve member. The portion 221 is a self-sealing valve member and a joint member that are disposed at a position lower than the lower surface of the pipe 1 and that the bottom surface portion 32 and the valve body 33 are disposed on the lower surface portion 221 .

請求項３に記載の自封式弁部材及び継ぎ手部材は、前記開口部３１の底面部３２を、開口部３１から弁体３３方向へ向かって連続して略水平面に形成したことを特徴とする前記段落０００９に記載の自封式弁部材である。
The self-sealing valve member and joint member according to claim 3 , wherein the bottom surface portion 32 of the opening portion 31 is formed in a substantially horizontal plane continuously from the opening portion 31 toward the valve body 33. The self-sealing valve member according to paragraph 0009 .

請求項４に記載の自封式弁部材及び継ぎ手部材は、前記開口部３１の底面部３２に、弁体３３方向へ向かって溝部３７を構成したことを特徴とする前記段落０００９又は段落００１０に記載の自封式弁部材である。
The self-sealing valve member and the joint member according to claim 4 are characterized in that a groove portion 37 is formed in the bottom surface portion 32 of the opening portion 31 in the direction of the valve body 33. This is a self-sealing valve member .

請求項５に記載の自封式弁部材及び継ぎ手部材は、前記開口部３１の底面部３２に、弁体３３へ向かって下方に傾斜する傾斜面３６を備えたことを特徴とする前記段落０００９乃至段落００１１のいずれか一つに記載の自封式弁部材である。
The self-sealing valve member and the joint member according to claim 5 include the inclined surface 36 inclined downward toward the valve body 33 on the bottom surface portion 32 of the opening 31. The self-sealing valve member according to any one of paragraphs 0011 .

請求項６に記載の自封式弁部材及び継ぎ手部材は、前記開口部３１の軸方向視において、弁体３３の当接面３４を底面部３２と略平行に配置したことを特徴とする前記段落０００９乃至段落００１２のいずれかひとつに記載の自封式弁部材である。
The self-sealing valve member and joint member according to claim 6, wherein the contact surface 34 of the valve element 33 is arranged substantially parallel to the bottom surface portion 32 in the axial direction view of the opening 31. The self-sealing valve member according to any one of 0009 to Paragraph 0012 .

請求項７に記載の自封式弁部材及び継ぎ手部材は、前記ケーシング２２の軸方向視形状が非円形形状としたことを特徴とする前記段落００１３に記載の継ぎ手部材である。
The self-sealing valve member and the joint member according to claim 7 are the joint members according to paragraph 0013, wherein the shape of the casing 22 viewed in the axial direction is a non-circular shape .

請求項８に記載の自封式弁部材及び継ぎ手部材は、前記ケーシング２２又は自封式弁部材を配管１に対し傾斜して配置したことを特徴とする前記段落０００８乃至段落００１４のいずれか一つに記載の自封式弁部材及び継ぎ手部材である。
The self-sealing valve member and the joint member according to claim 8 are the paragraphs 0008 to 0014 , wherein the casing 22 or the self-sealing valve member is disposed to be inclined with respect to the pipe 1. It is a self-sealing valve member and a joint member of description .

請求項９に記載の自封式弁部材及び継ぎ手部材は、前記流入部２３及び流出部２４の形状を円形としたことを特徴とする前記段落０００８乃至段落００１５のいずれか一つに記載の継ぎ手部材である。
The self-sealing valve member and joint member according to claim 9, wherein the shape of the inflow portion 23 and the outflow portion 24 is circular, and the joint member according to any one of the paragraphs 0008 to 0015, It is.

請求項１０に記載の自封式弁部材及び継ぎ手部材は、前記自封式弁部材及び継ぎ手部材を、洗面台のオーバーフロー配管に構成したことを特徴とする前記段落０００９乃至段落００１６のいずれか一つに記載の自封式弁部材及び継ぎ手部材である。
The self-sealing valve member and the joint member according to claim 10 are the paragraphs 0009 to 0016 , wherein the self-sealing valve member and the joint member are configured as an overflow pipe of a wash basin. It is a self-sealing valve member and a joint member of description .

請求項１に記載の本発明は、内部に自封式弁部材３が配置されるケーシング２２と、上流からの流体がケーシング２２内に流入する流入部２３と、ケーシング２２内の流体を下流へと流出させる流出部２４と、ケーシング２２の形状を軸方向視非円形形状としたことから、管体１の形状より継ぎ手部材２であるケーシング２２を拡大させることができ、内部の体積及び排水や気体の通過面積が大きくなる為、内部に自封式弁部材３を設置したとしても、排水や気体の流量を増加させることができるようになった。
請求項１に記載の本発明は、継ぎ手部材２内に配置される自封式弁部材３であって、前記開口部３１の軸方向の形状を非円形形状としたことから、自封式弁部材３の弁体３３の開口面積も従来の開口部３１が円形形状と比較して弁体３３の開口面積が大きくなる為、排水流量や気体の流量が向上した。
請求項２に記載の本発明は、略水平に配設された配管１に接続される継ぎ手部材内に設置され、開口部３１の下面に、少なくとも一部が平面形状に構成されている底面部３２を備えると共に、前記開口部３１の底面部３２から弁体３３方向へ向かって連続して下側の弁体３３を形成したことから、自封式弁部材３を略水平の配管１に接続される継ぎ手部材内に設置しても、管内下面から弁体３３である当接面３４までの高さが下面と略同一となる為、管内に水残りがなくなり、異臭やゴミ詰まりの問題が無くなった。また、特許文献２の従来例のように、軸方向視当接面３４の形状が円形から連続して屈曲して構成された三日月状の当接面３４とした場合の弁体３３の開閉の不自由さも解消された。又、自封式弁部材３が内部に配置される継ぎ手部材２であって、ケーシング２２の下面を自封式弁部材３の底面部３２形状と略合致する形状からなる下面部２２１としたことから、継ぎ手部材２内部に無駄な空間ができない為、排水流量が増加し、無駄な部分の削減となる為、配管１が設置される場所における省スペースにもなる。
請求項３に記載の本発明は、自封式弁部材３の開口部３１の底面部３２を略平面形状とし、該底面部３２を弁体３３方向へ向かって連続して略平面形状に形成したことから、自封式弁部材３を略水平の配管１内に設置しても、管内下面から弁体３３である当接面３４までの高さが下面と略同一となる為、管内に水残りがなくなり、異臭やゴミ詰まりの問題が無くなった。
請求項４に記載の本発明は、自封式弁部材３の開口部３１の底面部３２に、弁体３３方向へ向かって溝部３７を構成したことから、自封式弁部材３を略水平の配管１内に設置しても、溝部３７の最下面が管内の下面高さと略同一となる為、管内に水残りがなくなり、異臭やゴミ詰まりの問題が無くなった。
請求項５に記載の本発明は、自封式弁部材３の開口部３１の底面部３２に、弁体３３へ向かって下方に傾斜する傾斜面３６を備えたことから、自封式弁部材３を略水平の配管１内に設置しても、管内下面から弁体３３である当接面３４までの高さが下面と略同一となるか、それ以上に低くなる為、管内に水残りがなくなり、異臭やゴミ詰まりの問題が無くなった。
請求項６に記載の本発明は、自封式弁部材３の開口部３１の軸方向視において、弁体３３の開閉面を底面部３２と略平行に配置したことから、開口部３１の軸方向視弁体３３の下面を底面部３２に対して略垂直に配置したときと比較して、弁体３３の開口面積が大きくなる為、流体の流量（排水流量）が増加した。
請求項２又は請求項７に記載の本発明は、前記自封式弁部材３の開口部３１の形状、又はケーシング２２の軸方向に垂直な面での断面視形状が非円形形状としたことから、従来の開口部３１が円形形状の自封式弁部材３と比較して、内部の流体の流量（排水流量）が増加した。
請求項８に記載の本発明は、ケーシング２２又は自封式弁部材３を配管１に対し傾斜して配置したことから、自封式弁部材３を略水平に配管１内に設置しても、管内下面から弁体３３である当接面３４までの高さが下面と略同一となるか、それ以上に低くなる為、管内に水残りがなくなり、異臭やゴミ詰まりの問題が無くなった。
請求項９に記載の本発明は、前記流入部２３及び流出部２４の形状を円形としたことから、非円形のケーシング２２及び自封式弁部材３を用いても、円形の管体１に継ぎ手部材２として途中ジョイントして配置させることができるようになった。 The present invention described in claim 1 includes a casing 22 in which the self-sealing valve member 3 is disposed, an inflow portion 23 into which fluid from upstream flows into the casing 22, and fluid in the casing 22 downstream. Since the shape of the outflow portion 24 to be discharged and the casing 22 is a non-circular shape in the axial direction, the casing 22 that is the joint member 2 can be expanded from the shape of the tube body 1, and the internal volume, drainage, and gas can be expanded. Therefore, even if the self-sealing valve member 3 is installed inside, the flow rate of drainage and gas can be increased.
The present invention according to claim 1 is a self-sealing valve member 3 disposed in the joint member 2, and the axial shape of the opening 31 is a non-circular shape. Since the opening area of the valve body 33 is larger than that of the conventional opening 31 having a circular shape, the drainage flow rate and the gas flow rate are improved.
The present invention as set forth in claim 2 is installed in a joint member connected to a pipe 1 arranged substantially horizontally, and at least a part of the bottom surface of the opening 31 is formed in a planar shape. 32 and the lower valve body 33 is formed continuously from the bottom surface portion 32 of the opening 31 toward the valve body 33, so that the self-sealing valve member 3 is connected to the substantially horizontal pipe 1. Even when installed in the joint member , the height from the lower surface in the pipe to the contact surface 34, which is the valve element 33, is substantially the same as the lower surface, so there is no water remaining in the pipe, and there is no problem of strange smell or clogging of dust. It was. Further, as in the conventional example of Patent Document 2, the valve body 33 can be opened and closed when the shape of the contact surface 34 in the axial direction is a crescent-shaped contact surface 34 formed by continuously bending from a circular shape. The inconvenience has been resolved. Further, since the self-sealing valve member 3 is a joint member 2 disposed inside, the lower surface of the casing 22 is a lower surface portion 221 having a shape substantially matching the shape of the bottom surface portion 32 of the self-sealing valve member 3. Since there is no useless space inside the joint member 2, the drainage flow rate is increased, and useless portions are reduced, so that space is saved in the place where the pipe 1 is installed.
In the third aspect of the present invention, the bottom surface portion 32 of the opening 31 of the self-sealing valve member 3 has a substantially planar shape, and the bottom surface portion 32 is continuously formed in a substantially planar shape toward the valve body 33. Therefore, even if the self-sealing valve member 3 is installed in the substantially horizontal pipe 1, the height from the lower surface in the pipe to the contact surface 34, which is the valve body 33, is substantially the same as the lower surface, so that water remains in the pipe. The problem of nasty smell and clogging of trash was eliminated.
Since the groove part 37 was comprised in the bottom face part 32 of the opening part 31 of the self-sealing valve member 3 in the 4th aspect of this invention toward the valve body 33 direction, self-sealing valve member 3 is substantially horizontal piping. Even when installed in 1, the bottom surface of the groove 37 is substantially the same as the height of the bottom surface in the tube, so there is no water remaining in the tube, and there is no problem of strange smell or clogging of dust.
Since the present invention described in claim 5 includes the inclined surface 36 inclined downward toward the valve body 33 on the bottom surface portion 32 of the opening 31 of the self-sealing valve member 3, the self-sealing valve member 3 is Even when installed in a substantially horizontal pipe 1, the height from the lower surface in the pipe to the contact surface 34, which is the valve element 33, is substantially the same as or lower than the lower surface, so there is no water remaining in the pipe. The problem of nasty smell and clogging of trash disappeared.
According to the sixth aspect of the present invention, since the opening / closing surface of the valve element 33 is disposed substantially parallel to the bottom surface portion 32 in the axial direction view of the opening portion 31 of the self-sealing valve member 3, the axial direction of the opening portion 31 is provided. Compared with the case where the lower surface of the valve body 33 is disposed substantially perpendicular to the bottom surface portion 32, the flow area of the fluid (drainage flow rate) is increased because the opening area of the valve body 33 is increased.
The present invention according to claim 2 or claim 7 is that the shape of the opening 31 of the self-sealing valve member 3 or the cross-sectional shape on the plane perpendicular to the axial direction of the casing 22 is a non-circular shape. As compared with the self-sealing valve member 3 having a conventional opening 31 having a circular shape, the flow rate of the internal fluid (drainage flow rate) is increased.
In the present invention according to claim 8 , since the casing 22 or the self-sealing valve member 3 is disposed to be inclined with respect to the pipe 1, even if the self-sealing valve member 3 is installed in the pipe 1 substantially horizontally, Since the height from the lower surface to the contact surface 34, which is the valve element 33, is substantially the same as or lower than the lower surface, there is no water remaining in the pipe, and there is no problem of strange odors or clogging of dust.
According to the ninth aspect of the present invention, since the shapes of the inflow portion 23 and the outflow portion 24 are circular, even if the non-circular casing 22 and the self-sealing valve member 3 are used, the joint is attached to the circular tubular body 1. The member 2 can be arranged as a joint on the way.

実施例１の継ぎ手部材の斜視図である。It is a perspective view of the joint member of Example 1. 実施例１の分解斜視図である。1 is an exploded perspective view of Example 1. FIG. 実施例１の継ぎ手部材及び自封式弁部材をセット時の断面斜視図である。The joint member and Jifushiki valve member of Example 1 is a sectional perspective view when set. （ａ）実施例１の継ぎ手部材の軸方向上面視である。（ｂ）実施例１の継ぎ手部材の側面図である。(A) It is an axial direction top view of the joint member of Example 1. FIG. (B) It is a side view of the joint member of Example 1. FIG. （ａ）実施例１の自封式弁部材の軸方向上面図である。（ｂ）実施例１の自封式弁体の側面図である。（ｃ）実施例１の自封式弁部材の底面図である。(A) It is an axial top view of the self-sealing valve member of Example 1. (B) It is a side view of the self-sealing valve body of Example 1. (C) It is a bottom view of the self-sealing valve member of Example 1. 実施例１の自封式弁部材の断面斜視図である。It is a cross-sectional perspective view of the self-sealing valve member of Example 1. 実施例１の自封式弁部材の斜視図である。1 is a perspective view of a self-sealing valve member of Example 1. FIG. 実施例１の断面図である。1 is a cross-sectional view of Example 1. FIG. 実施例１の図８における排水が通水時を示す断面図である。It is sectional drawing which shows the drainage in FIG. 8 of Example 1 at the time of water flow. 実施例２の継ぎ手部材の斜視図である。It is a perspective view of the joint member of Example 2. 実施例２の継ぎ手部材及び自封式弁部材をセット時の断面斜視図である。The joint member and Jifushiki valve member of Example 2 is a cross-sectional perspective view when set. 実施例２の分解斜視図（断面）である。It is a disassembled perspective view (cross section) of Example 2. FIG. 実施例２の分解斜視図である。3 is an exploded perspective view of Example 2. FIG. （ａ）実施例２の自封式弁部材の軸方向弁体側の側面図である。（ｂ）実施例２の自封式弁部材の上面図である。（ｃ）実施例２の自封式弁部材の底面図である。(A) It is a side view by the side of the axial direction valve body of the self-sealing valve member of Example 2. FIG. (B) It is a top view of the self-sealing valve member of Example 2. (C) It is a bottom view of the self-sealing valve member of Example 2. 実施例２の自封式弁部材の断面斜視図である。It is a cross-sectional perspective view of the self-sealing valve member of Example 2. 実施例２の自封式弁部材の斜視図である。It is a perspective view of the self-sealing valve member of Example 2. 実施例２の自封式弁部材の断面図である。It is sectional drawing of the self-sealing valve member of Example 2. 実施例２の図１７における排水が通水時を示す断面図である。It is sectional drawing which shows the waste_water | drain in FIG. 17 of Example 2 at the time of water flow. 実施例３の自封式弁部材の断面図である。It is sectional drawing of the self-sealing valve member of Example 3. （ａ）実施例３の自封式弁部材の軸方向開口部側の側面図である。（ｂ）実施例３の自封式弁部材の上面図である。（ｃ）実施例３の自封式弁部材の軸方向視弁体側の側面図である。(A) It is a side view by the side of the axial direction opening part of the self-sealing valve member of Example 3. FIG. (B) It is a top view of the self-sealing valve member of Example 3. (C) It is a side view by the side of the axial direction valve body of the self-sealing valve member of Example 3. 実施例３の自封式弁部材の断面斜視図である。It is a cross-sectional perspective view of the self-sealing valve member of Example 3. 実施例３の自封式弁部材の斜視図である。It is a perspective view of the self-sealing valve member of Example 3. 実施例３の図１９における排水が通水時を示す断面図である。It is sectional drawing which shows the drainage in FIG. 19 of Example 3 at the time of water flow. 自封式弁部材のその他の実施例を示す図である。（ａ）軸方向弁体側の側面図である。（ｂ）軸方向開口部側の側面図である。（ｃ）底面図である。It is a figure which shows the other Example of a self-sealing valve member . (A) It is a side view by the side of an axial direction valve body. (B) It is a side view by the side of an axial direction opening part. (C) It is a bottom view. 自封式弁部材の図２４の実施例を示す図である。（ａ）斜視図である。（ｂ）（ｃ）断面斜視図である。It is a figure which shows the Example of FIG. 24 of a self-sealing valve member . (A) It is a perspective view. (B) (c) It is a cross-sectional perspective view. 自封式弁部材のその他の実施例を示す図である。（ａ）上面図である。（ｂ）軸方向弁体側の側面図である。It is a figure which shows the other Example of a self-sealing valve member . (A) It is a top view. (B) It is a side view by the side of an axial direction valve body. 自封式弁部材の図２６の実施例を示す図である。（ａ）断面図である（ｂ）（ｃ）断面斜視図である。It is a figure which shows the Example of FIG. 26 of a self-sealing valve member . (A) It is sectional drawing, (b) (c) It is sectional perspective view. 自封式弁部材の図２６の実施例を示す斜視図である。It is a perspective view which shows the Example of FIG. 26 of a self-sealing valve member . 自封式弁部材のその他の実施例を示す図である。（ａ）軸方向開口部側の側面図である。（ｂ）上面図である。（ｃ）軸方向弁体側の側面図である。It is a figure which shows the other Example of a self-sealing valve member . (A) It is a side view by the side of an axial direction opening part. (B) It is a top view. (C) It is a side view by the side of an axial direction valve body. 自封式弁部材の図２９の実施例を示す図である。（ａ）断面図である（ｂ）（ｃ）断面斜視図である。It is a figure which shows the Example of FIG. 29 of a self-sealing valve member . (A) It is sectional drawing, (b) (c) It is sectional perspective view. 自封式弁部材の図２９の実施例を示す斜視図である。It is a perspective view which shows the Example of FIG. 29 of a self-sealing valve member . 継ぎ手部材のその他の実施例を示す図である（ａ）斜視図である。（ｂ）側面図である。It is a figure which shows the other Example of a joint member. (B) It is a side view. その他の実施例（具体的には洗面台のオーバーフローアダプター部分）を示す図である。It is a figure which shows the other Example (specifically the overflow adapter part of a washstand). その他の実施例（具体的には浴室の排水トラップ）を示す図である。It is a figure which shows the other Example (specifically the drain trap of a bathroom). 従来例（特許文献１）を示す図である。It is a figure which shows a prior art example (patent document 1). 従来例（特許文献２）を示す図である。It is a figure which shows a prior art example (patent document 2). 従来例（特許文献３）を示す図である。It is a figure which shows a prior art example (patent document 3).

以下に図１乃至図９に図示した自封式弁部材３及び継ぎ手部材２の実施例を、図面を参照しつつ説明する。
図１乃至図９の実施例の自封式弁部材３及び継ぎ手部材２は、図示しないが洗面台の排水配管に用いられるものである。この場合において、自封式弁部材３は、下水からの異臭や害虫が室内側に逆流しないようシールする排水トラップとして用いられる。
配管１は、洗面台のボウルに構成された排水口に接続される管体１であって、排水口から床面にむかって縦方向に垂下するように配管される円形の管体１である。また、本実施例では、流入部２３に接続される側の端部には、外側方向にむけて凸出するフランジを構成する。尚、該フランジは管体１に一体的に構成しても良いし、パッキンやリング状部材などで後付してもかまわない。
継ぎ手部材２は、図１乃至図４に示したように配管１の途中に接続される部材であって、後記するケーシング２２、流入部２３、流出部２４、を備える。
流入部２３は、ケーシング２２上流に配置され、前記管体１が接続される円筒状の部材であって、管体１から流入した排水を、ケーシング２２内部に流入させる為の構成要素である。
流出部２４は、ケーシング２２下流に配置され、前記管体１が接続される円筒状の部材であって、ケーシング２２内部の排水を、管体１下流側へと排水させる為の構成要素である。
ケーシング２２は、軸方向の断面視楕円形状の箱体であって、軸方向上流側に前記流入部２３を構成し、軸方向下流側に前記流出部２４を構成する。尚、本実施例では、ケーシング２２を上部及び下部で構成しており、両者は接着剤等で水密的に接続される。また、内部に自封式弁部材３を配置している。
自封式弁部材３は、図５乃至図７に示したように後記する開口部３１と弁体３３からなり、前記継ぎ手部材２のケーシング２２内部に配置される。また、自封式弁部材３は、ゴムや軟質樹脂、シリコンなどの弾性を備える材質から成る。
開口部３１は、自封式弁部材３の上流側に構成される構成要素であって、軸方向視楕円形状を成し、外側面が前記ケーシング２２の内側面と略合致する形状となっている。また、開口部３１の上端部には、ケーシング２２に取付固定するための取付部３５を外側方向に向けて突出するようにして一体的に構成される。
弁体３３は、自封式弁部材３の下流側に構成される構成要素であって、前記開口部３１から連続して形成され、先端が互いに当接する弾性の板状に形成された一対の弁状部分である。また、弁体３３は常時水密的に当接して当接面３４を構成しており、排水が発生した際には排水の水圧または水流により弁体３３の当接が解除され、弁体３３が開口して、弁体３３の開口部３１から排水が通過するように構成される。 Examples of the self-sealing valve member 3 and the joint member 2 shown in FIGS. 1 to 9 will be described below with reference to the drawings.
Although not shown, the self-sealing valve member 3 and the joint member 2 of the embodiment shown in FIGS. 1 to 9 are used for drainage piping of a wash basin. In this case, the self-sealing valve member 3 is used as a drain trap that seals off the off-flavors and pests from the sewage so as not to flow back into the room.
The pipe 1 is a tubular body 1 connected to a drain outlet configured in a bowl of a wash basin, and is a circular pipe 1 that is piped so as to hang vertically from the drain outlet toward the floor surface. . In the present embodiment, a flange projecting toward the outer side is formed at the end connected to the inflow portion 23. The flange may be formed integrally with the tube body 1 or may be retrofitted with a packing or a ring-shaped member.
The joint member 2 is a member connected in the middle of the pipe 1 as shown in FIGS. 1 to 4, and includes a casing 22, an inflow portion 23, and an outflow portion 24 which will be described later.
The inflow portion 23 is a cylindrical member that is disposed upstream of the casing 22 and is connected to the pipe body 1, and is a component for allowing the wastewater flowing in from the pipe body 1 to flow into the casing 22.
The outflow part 24 is a cylindrical member that is disposed downstream of the casing 22 and is connected to the pipe body 1, and is a component for draining the waste water inside the casing 22 to the downstream side of the pipe body 1. .
The casing 22 is a box having an elliptical sectional view in the axial direction, and configures the inflow portion 23 on the upstream side in the axial direction and configures the outflow portion 24 on the downstream side in the axial direction. In this embodiment, the casing 22 is composed of an upper part and a lower part, and both are watertightly connected with an adhesive or the like. A self-sealing valve member 3 is disposed inside.
As shown in FIGS. 5 to 7, the self-sealing valve member 3 includes an opening 31 and a valve body 33 which will be described later, and is disposed inside the casing 22 of the joint member 2. The self-sealing valve member 3 is made of an elastic material such as rubber, soft resin, or silicon.
The opening 31 is a component that is configured on the upstream side of the self-sealing valve member 3, has an elliptical shape when viewed in the axial direction, and has an outer surface that substantially matches the inner surface of the casing 22. . Further, the upper end portion of the opening 31 is integrally configured so that an attachment portion 35 for attachment and fixation to the casing 22 protrudes outward.
The valve body 33 is a component configured on the downstream side of the self-sealing valve member 3 and is formed of an elastic plate that is formed continuously from the opening 31 and has tips that are in contact with each other. It is a shaped part. Further, the valve body 33 is always in watertight contact with the contact surface 34, and when drainage occurs, the contact of the valve body 33 is released by the water pressure or water flow of the drainage, It opens and it is comprised so that drainage may pass from the opening part 31 of the valve body 33. FIG.

上記の自封式弁部材３又は継ぎ手部材２は以下のように配置・構成される。
図２乃至図３のように予め工場などで、継ぎ手部材２のケーシング２２下部内に自封式弁部材３をセッティングする。この際に、自封式弁部材３の開口部３１がケーシング２２下部の流入部２３側に、そして弁体３３側はケーシング２２の流出部２４側に配置する。このとき、開口部３１はケーシング２２内壁に略合致した形状となっている。また、自封式弁部材３の取付部３５を、管体１のフランジに巻き付かせて取付け、ケーシング２２の上部をケーシング２２下部に接着剤によって水密的に接続する。このとき、前記自封式弁部材３の取付部３５を挟むようにして取り付けるので、自封式弁部材３がケーシング２２より脱落するようなことがない。そして、施工現場にて、洗面台に接続される管体１に継ぎ手部材２の流入部２３を水密的に接続し、その後、下流側の管体１に継ぎ手部材２の流出部２４を水密的に接続する。このようにして自封式弁部材３及び継ぎ手部材２の配置を行う。 The self-sealing valve member 3 or the joint member 2 is arranged and configured as follows.
As shown in FIGS. 2 to 3, the self-sealing valve member 3 is set in the lower part of the casing 22 of the joint member 2 in advance in a factory or the like. At this time, the opening 31 of the self-sealing valve member 3 is disposed on the inflow portion 23 side of the lower portion of the casing 22, and the valve body 33 side is disposed on the outflow portion 24 side of the casing 22. At this time, the opening 31 has a shape substantially matching the inner wall of the casing 22. Further, the attachment portion 35 of the self-sealing valve member 3 is attached by being wound around the flange of the tube body 1, and the upper portion of the casing 22 is watertightly connected to the lower portion of the casing 22 with an adhesive. At this time, since the mounting portion 35 of the self-sealing valve member 3 is attached so as to sandwich the self-sealing valve member 3, the self-sealing valve member 3 is not dropped from the casing 22. Then, at the construction site, the inflow portion 23 of the joint member 2 is watertightly connected to the pipe body 1 connected to the washstand, and then the outflow portion 24 of the joint member 2 is watertightly connected to the downstream pipe body 1. Connect to. In this way, the self-sealing valve member 3 and the joint member 2 are arranged.

上記の構成の自封式弁部材３及び継ぎ手部材２では以下のような排水の流れとなる。
通常時、自封式弁部材３の弁体３３は水密的に閉口した状態である。
洗面台に排水が発生すると、洗面ボウルの排水口から排水が排出され、排水口に接続された管体１内に排出される。その後、管体１内の排水は継ぎ手部材２の流入部２３から継ぎ手部材２内部に流入する。そして流入部２３からケーシング２２内部に排水が流入し、自封式弁部材３の開口部３１に流入して弁体３３に流入する。排水の水圧により弁体３３が開口し、図９のように当接面３４が解除される。弁体３３が開口した分、排水が下流側へと排水されることとなる。そして、自封式弁部材３を通過した排水はケーシング２２内から流出部２４へと排水され、流出部２４から継ぎ手部材２外である管体１下流へと排水される。管体１内に排水された排水は最終的には下水管へと排水される。
また、排水が終了すると、図８のように自封式弁部材３の弁体３３は自身の弾性もしくは復元力により自動的に閉口し、弁体３３同士の当接により当接面３４が構成される。そして、弁体３３が閉口するので、下水下流からの異臭や害虫が室内側に逆流することがない。 The self-sealing valve member 3 and the joint member 2 configured as described above have the following drainage flow.
Normally, the valve element 33 of the self-sealing valve member 3 is in a state of being watertightly closed.
When drainage occurs in the wash basin, the drainage is discharged from the drain of the wash bowl and is discharged into the tube 1 connected to the drain. Thereafter, the drainage in the pipe body 1 flows into the joint member 2 from the inflow portion 23 of the joint member 2. Then, drainage flows into the casing 22 from the inflow portion 23, flows into the opening 31 of the self-sealing valve member 3, and flows into the valve body 33. The valve element 33 is opened by the water pressure of the drainage, and the contact surface 34 is released as shown in FIG. The drainage is drained to the downstream side as much as the valve body 33 is opened. The drainage that has passed through the self-sealing valve member 3 is drained from the inside of the casing 22 to the outflow portion 24, and is drained from the outflow portion 24 to the downstream of the pipe body 1 outside the joint member 2. The waste water drained into the pipe body 1 is finally drained into the sewer pipe.
When drainage is completed, the valve body 33 of the self-sealing valve member 3 is automatically closed by its own elasticity or restoring force, as shown in FIG. The And since the valve body 33 closes, the bad smell and pest from the downstream of a sewage do not flow backward indoors.

以下に第二実施例の自封式弁部材３及び継ぎ手部材２の実施例を、図面を参照しつつ説明する。
図１０乃至図１８の実施例の自封式弁部材３及び継ぎ手部材２は、図示しないが浴室の排水配管に用いられるものである。
この場合において、自封式弁部材３は、下水からの異臭や害虫が室内側に逆流しないようシールする排水トラップとして用いられる。
配管１は、浴室の排水口に接続される管体１であって、床下の配管空間内に配置される。また、浴室の排水口から側面方向に略水平に配管される円形の管体１である。尚、このとき、管体１には排水勾配が設定されている。また、本実施例では、流入部２３に接続される側の端部には、外側方向にむけて凸出するフランジを構成する。尚、該フランジは管体１に一体的に構成しても良いし、パッキンやリング状部材などで後付してもかまわない。
継ぎ手部材２は、図１０のように配管１の途中に接続される部材であって、後記するケーシング２２、流入部２３、流出部２４、を備える。
流入部２３は、ケーシング２２上流に配置され、前記管体１が接続される円筒状の部材であって、管体１から流入した排水を、ケーシング２２内部に流入させる為の構成要素である。
流出部２４は、ケーシング２２下流に配置され、前記管体１が接続される円筒状の部材であって、ケーシング２２内部の排水を、管体１下流側へと排水させる為の構成要素である。
ケーシング２２は、軸方向の断面視楕円形状の箱体であって、軸方向上流側に前記流入部２３を構成し、軸方向下流側に前記流出部２４を構成する。このケーシング２２は、配管後に下面となる内壁面に、流入部２３から流出部２４へ向かって連続する略平面形状の下面部２２１を構成する。尚、本実施例では、ケーシング２２を上部及び下部で構成しており、両者は接着剤等で水密的に接続される。また、内部に自封式弁部材３を配置している。
自封式弁部材３は、図１４乃至図１６に示すように後記する開口部３１と弁体３３からなり、前記継ぎ手部材２のケーシング２２内部に配置される。また、自封式弁部材３は、ゴムや軟質樹脂、シリコンなどの弾性を備える材質から成る。
開口部３１は、自封式弁部材３の上流側に構成される構成要素であって、軸方向視楕円形状を成し、外側面が前記ケーシング２２の内側面と略合致する形状となっている。そして、自封式弁部材３が略水平方向に配置された際の開口部３１の下面となる内面に、弁体３３方向へ向かって連続して略平面形状に形成した底面部３２を備える。
また、開口部３１の上流側端部には、ケーシング２２に取付固定するための取付部３５を外側方向に向けて突出するようにして一体的に構成される。
弁体３３は、自封式弁部材３の下流側に構成される構成要素であって、前記開口部３１から連続して形成され、先端が互いに当接する弾性の板状に形成された一対の弁状部材である。また、開口部３１の底面部３２から弁体３３方向へ向かって平面形状、直線形状に連続して下側の弁体３３を形成している。そして、自封式弁部材３の弁体３３（閉口時）の当接面３４は、軸方向視底面部３２に平行となるように構成される。また、流入部２３の下面は、自封式弁部材３の底面部３２と略同一高さ、すなわち略水平面となっている。
弁体３３は常時水密的に当接して当接面３４を構成しており、排水が発生した際には排水の水圧または水流により弁体３３の当接が解除され、弁体３３が開口して、弁体３３の開口部３１から排水が通過するように構成される。 Embodiments of the self-sealing valve member 3 and the joint member 2 of the second embodiment will be described below with reference to the drawings.
The self-sealing valve member 3 and the joint member 2 of the embodiment shown in FIGS. 10 to 18 are used for drain pipes in a bathroom, although not shown.
In this case, the self-sealing valve member 3 is used as a drain trap that seals off the off-flavors and pests from the sewage so as not to flow back into the room.
The pipe 1 is a pipe body 1 connected to a drain outlet of a bathroom, and is arranged in a pipe space under the floor. Moreover, it is the circular pipe body 1 piped substantially horizontally from the drain outlet of the bathroom in the side surface direction. At this time, a drainage gradient is set in the pipe body 1. In the present embodiment, a flange projecting toward the outer side is formed at the end connected to the inflow portion 23. The flange may be formed integrally with the tube body 1 or may be retrofitted with a packing or a ring-shaped member.
The joint member 2 is a member connected in the middle of the pipe 1 as shown in FIG. 10, and includes a casing 22, an inflow portion 23, and an outflow portion 24 which will be described later.
The inflow portion 23 is a cylindrical member that is disposed upstream of the casing 22 and is connected to the pipe body 1, and is a component for allowing the wastewater flowing in from the pipe body 1 to flow into the casing 22.
The outflow part 24 is a cylindrical member that is disposed downstream of the casing 22 and is connected to the pipe body 1, and is a component for draining the waste water inside the casing 22 to the downstream side of the pipe body 1. .
The casing 22 is a box having an elliptical sectional view in the axial direction, and configures the inflow portion 23 on the upstream side in the axial direction and configures the outflow portion 24 on the downstream side in the axial direction. The casing 22 forms a substantially planar lower surface portion 221 that continues from the inflow portion 23 toward the outflow portion 24 on the inner wall surface that becomes the lower surface after piping. In this embodiment, the casing 22 is composed of an upper part and a lower part, and both are watertightly connected with an adhesive or the like. A self-sealing valve member 3 is disposed inside.
As shown in FIGS. 14 to 16, the self-sealing valve member 3 includes an opening 31 and a valve body 33 which will be described later, and is disposed inside the casing 22 of the joint member 2. The self-sealing valve member 3 is made of an elastic material such as rubber, soft resin, or silicon.
The opening 31 is a component that is configured on the upstream side of the self-sealing valve member 3, has an elliptical shape when viewed in the axial direction, and has an outer surface that substantially matches the inner surface of the casing 22. . And the bottom face part 32 formed in the substantially planar shape continuously toward the valve body 33 direction is provided in the inner surface used as the lower surface of the opening part 31 when the self-sealing valve member 3 is arrange | positioned in a substantially horizontal direction.
Further, the upstream end portion of the opening 31 is integrally configured so that an attachment portion 35 for fixing to the casing 22 protrudes outward.
The valve body 33 is a component configured on the downstream side of the self-sealing valve member 3 and is formed of an elastic plate that is formed continuously from the opening 31 and has tips that are in contact with each other. It is a shaped member. Further, the lower valve body 33 is formed continuously from the bottom surface portion 32 of the opening 31 toward the valve body 33 in a planar shape and a linear shape. The contact surface 34 of the valve element 33 (when closed) of the self-sealing valve member 3 is configured to be parallel to the axially viewed bottom surface portion 32. Further, the lower surface of the inflow portion 23 has substantially the same height as the bottom surface portion 32 of the self-sealing valve member 3, that is, a substantially horizontal plane.
The valve body 33 always contacts with water tightly to form a contact surface 34. When drainage occurs, the contact of the valve body 33 is released by the water pressure or water flow of the drainage, and the valve body 33 opens. Thus, the drainage is configured to pass through the opening 31 of the valve body 33.

上記の自封式弁部材３又は継ぎ手部材２は以下のように配置・構成される。
図１１乃至図１３のように、予め工場などで、継ぎ手部材２のケーシング２２下部内に自封式弁部材３をセッティングする。この際に、自封式弁部材３の開口部３１がケーシング２２下部の流入部２３側に、そして弁体３３側はケーシング２２の流出部２４側に配置する。このとき、開口部３１はケーシング２２内壁に略合致した形状となっている。そして、継ぎ手部材２の下面部２２１上に、自封式弁部材３の底面部３２及び下側弁体３３が配置されるので、継ぎ手部材２内部の底面は実質平面形状となっている。また、流入部２３の下面は、自封式弁部材３の底面部３２と略同一高さ、すなわち略水平面となっている。
また、自封式弁部材３の取付部３５を、管体１のフランジに巻き付かせて取付け、ケーシング２２の上部をケーシング２２下部に接着剤によって水密的に接続する。このとき、前記自封式弁部材３の取付部３５を挟むようにして取り付けるので、自封式弁部材３がケーシング２２より脱落するようなことがない。そして、施工現場にて、浴室の排水口に接続される管体１に継ぎ手部材２の流入部２３を水密的に接続し、その後、下流側の管体１に継ぎ手部材２の流出部２４を水密的に接続する。このようにして自封式弁部材３及び継ぎ手部材２の配置を行う。 The self-sealing valve member 3 or the joint member 2 is arranged and configured as follows.
As shown in FIGS. 11 to 13, the self-sealing valve member 3 is set in the lower part of the casing 22 of the joint member 2 in advance at a factory or the like. At this time, the opening 31 of the self-sealing valve member 3 is disposed on the inflow portion 23 side of the lower portion of the casing 22, and the valve body 33 side is disposed on the outflow portion 24 side of the casing 22. At this time, the opening 31 has a shape substantially matching the inner wall of the casing 22. And since the bottom face part 32 and the lower side valve body 33 of the self-sealing valve member 3 are arrange | positioned on the lower surface part 221 of the joint member 2, the bottom face inside the joint member 2 becomes a substantially plane shape. Further, the lower surface of the inflow portion 23 has substantially the same height as the bottom surface portion 32 of the self-sealing valve member 3, that is, a substantially horizontal plane.
Further, the attachment portion 35 of the self-sealing valve member 3 is attached by being wound around the flange of the tube body 1, and the upper portion of the casing 22 is watertightly connected to the lower portion of the casing 22 with an adhesive. At this time, since the mounting portion 35 of the self-sealing valve member 3 is attached so as to sandwich the self-sealing valve member 3, the self-sealing valve member 3 is not dropped from the casing 22. Then, at the construction site, the inflow portion 23 of the joint member 2 is watertightly connected to the pipe body 1 connected to the drain outlet of the bathroom, and then the outflow portion 24 of the joint member 2 is connected to the downstream pipe body 1. Connect watertight. In this way, the self-sealing valve member 3 and the joint member 2 are arranged.

上記の構成の自封式弁部材３及び継ぎ手部材２では以下のような排水の流れとなる。
通常時、自封式弁部材３の弁体３３は水密的に閉口した状態である。
浴室に排水が発生すると、浴室の排水口から排水が排出され、排水口に接続された管体１内に排出される。その後、管体内の排水は継ぎ手部材２の流入部２３から継ぎ手部材２内部に流入する。そして流入部２３からケーシング２２内部に排水が流入し、自封式弁部材３の開口部３１から弁体３３に流入する。このとき、流入部２３から底面部３２、及び弁体３３まで連続して略平面形状、すなわち略水平面となっているため、排水は遮蔽物によって阻害されることなく円滑に弁体３３まで流れ着く。そして図１８のように排水の水圧により弁体３３が開口し、当接面３４が解除される。弁体３３が開口した分、排水が下流側へと排水されることとなる。そして、自封式弁部材３を通過した排水はケーシング２２内から流出部２４へと排水され、流出部２４から継ぎ手部材２外である管体１下流へと排水される。管体１内に排水された排水は最終的には下水管へと排水される。このとき、弁体３３の当接面３４は底面部３２と平行且つ、底面部３２から連続して構成されてケーシング２２下面と略同一面となっている為、排水が弁体３３の当接面３４までの高さ分水残りがするといった問題が無い。また、弁体３３の当接面３４の向きを、軸方向視底面部３２と平行に構成しているので、軸方向視底面部３２に対して垂直に配置した時と比較して開口面積が大きくなり、排水流量が向上する。これは、ケーシング２２及び自封式弁部材３の開口部３１の形状が楕円である為、長辺と短辺方向が存在するので、自封式弁部材３の弁体３３当接面３４の向きを、短辺方向にするよりも長辺方向にしたほうが、弁体３３の開口面積が大きくなる為である。
また、排水が終了すると、図１７のように自封式弁部材３の弁体３３は自身の弾性もしくは復元力により自動的に閉口し、弁体３３同士の当接により当接面３４が構成される。そして、弁体３３が閉口するので、下水下流からの異臭や害虫が室内側に逆流することがない。 The self-sealing valve member 3 and the joint member 2 configured as described above have the following drainage flow.
Normally, the valve element 33 of the self-sealing valve member 3 is in a state of being watertightly closed.
When drainage is generated in the bathroom, the drainage is discharged from the drainage port of the bathroom and is discharged into the pipe body 1 connected to the drainage port. Thereafter, the waste water in the pipe flows into the joint member 2 from the inflow portion 23 of the joint member 2. Then, wastewater flows into the casing 22 from the inflow portion 23, and flows into the valve body 33 from the opening 31 of the self-sealing valve member 3. At this time, since the inflow portion 23 continues to the bottom surface portion 32 and the valve body 33 and has a substantially planar shape, that is, a substantially horizontal surface, the drainage smoothly flows to the valve body 33 without being obstructed by the shield. Then, as shown in FIG. 18, the valve body 33 is opened by the water pressure of the drainage, and the contact surface 34 is released. The drainage is drained to the downstream side as much as the valve body 33 is opened. The drainage that has passed through the self-sealing valve member 3 is drained from the inside of the casing 22 to the outflow portion 24, and is drained from the outflow portion 24 to the downstream of the pipe body 1 outside the joint member 2. The waste water drained into the pipe body 1 is finally drained into the sewer pipe. At this time, the contact surface 34 of the valve body 33 is parallel to the bottom surface portion 32 and is continuously formed from the bottom surface portion 32 so as to be substantially flush with the bottom surface of the casing 22. There is no problem that water remains for the height up to the surface 34. Moreover, since the direction of the contact surface 34 of the valve element 33 is configured to be parallel to the axial view bottom surface portion 32, the opening area is larger than when the valve body 33 is disposed perpendicular to the axial view bottom surface portion 32. Increases the drainage flow rate. Since the shape of the opening part 31 of the casing 22 and the self-sealing valve member 3 is an ellipse, the long side and the short side direction exist. Therefore, the direction of the valve element 33 contact surface 34 of the self-sealing valve member 3 is changed. This is because the opening area of the valve element 33 is larger in the long side direction than in the short side direction.
When drainage is completed, the valve body 33 of the self-sealing valve member 3 is automatically closed by its own elasticity or restoring force, as shown in FIG. The And since the valve body 33 closes, the bad smell and pest from the downstream of a sewage do not flow backward indoors.

以下に第三実施例の自封式弁部材３及び継ぎ手部材２の実施例を、図面を参照しつつ説明する。
図１９乃至図２３の実施例の自封式弁部材３及び継ぎ手部材２は、図示しないが浴室の排水配管に用いられるものである。
尚、本実施例において、自封式弁部材３及び継ぎ手部材２の構成は第二実施例と同一の為省略する。
継ぎ手部材２は、図１９のように配管１の途中に接続される部材であって、後記するケーシング２２、流入部２３、流出部２４、を備える。
流入部２３は、ケーシング２２上流に配置され、前記管体１が接続される円筒状の部材であって、管体１から流入した排水を、ケーシング２２内部に流入させる為の構成要素である。
流出部２４は、ケーシング２２下流に配置され、前記管体１が接続される円筒状の部材であって、ケーシング２２内部の排水を、管体１下流側へと排水させる為の構成要素である。
ケーシング２２は、軸方向の断面視楕円形状の箱体であって、軸方向上流側に前記流入部２３を構成し、軸方向下流側に前記流出部２４を構成する。このケーシング２２は、配管後に下面となる内壁面に、流入部２３から流出部２４へ向かって平面形状の下面部２２１を構成する。当該下面部２２１は、途中位置で、流入部２３から流出部２４へ向かって下がる傾斜を備えている。つまり、流入部２３と流出部２４の中心軸はほぼ平行で、流入部２３、流出部２４に対しケーシング２２の下面部２２１は角度を持って形成されている。尚、本実施例では、ケーシング２２を上部及び下部で構成しており、両者は接着剤等で水密的に接続される。また、内部に自封式弁部材３を配置している。
自封式弁部材３は、図２０乃至図２２のように後記する開口部３１と弁体３３からなり、前記継ぎ手部材２のケーシング２２内部に配置される。また、自封式弁部材３は、ゴムや軟質樹脂、シリコンなどの弾性を備える材質から成る。
開口部３１は、自封式弁部材３の上流側に構成される構成要素であって、軸方向視楕円形状を成し、外側面が前記ケーシング２２の内側面と略合致する形状となっている。そして、自封式弁部材３が略水平方向に配置された際の開口部３１の下面となる内面に、弁体３３方向へ向かって連続して略平面形状に形成した底面部３２を備える。この底面部３２は、本実施例に置いては途中箇所で開口部３１から弁体３３へむかって下方向に傾斜する傾斜を構成している。
また、開口部３１の上流側端部には、ケーシング２２に取付固定するための取付部３５を外側方向に向けて突出するようにして一体的に構成される。
弁体３３は、自封式弁部材３の下流側に構成される構成要素であって、前記開口部３１から連続して形成され、先端が互いに当接する弾性の板状に形成された一対の弁状部分である。また、本実施例では、底面部３２は水平面に対し下方に向かって傾斜する傾斜面３６を備えて構成されている。また、流入部２３の下面は、自封式弁部材３の底面部３２と略同一高であり、更に弁体３３の当接面３４は流入部２３の下面よりさらに低い面に配置される。
弁体３３は常時水密的に当接して当接面３４を構成しており、排水が発生した際には排水の水圧または水流により弁体３３の当接が解除され、弁体３３が開口する。弁体３３の開口部３１から排水が通過するように構成される。 Embodiments of the self-sealing valve member 3 and the joint member 2 of the third embodiment will be described below with reference to the drawings.
The self-sealing valve member 3 and the joint member 2 of the embodiment of FIGS. 19 to 23 are used for drain pipes in a bathroom, although not shown.
In the present embodiment, the configurations of the self-sealing valve member 3 and the joint member 2 are the same as those in the second embodiment, and are omitted.
The joint member 2 is a member connected in the middle of the pipe 1 as shown in FIG. 19 and includes a casing 22, an inflow portion 23, and an outflow portion 24, which will be described later.
The inflow portion 23 is a cylindrical member that is disposed upstream of the casing 22 and is connected to the pipe body 1, and is a component for allowing the wastewater flowing in from the pipe body 1 to flow into the casing 22.
The outflow part 24 is a cylindrical member that is disposed downstream of the casing 22 and is connected to the pipe body 1, and is a component for draining the waste water inside the casing 22 to the downstream side of the pipe body 1. .
The casing 22 is a box having an elliptical sectional view in the axial direction, and configures the inflow portion 23 on the upstream side in the axial direction and configures the outflow portion 24 on the downstream side in the axial direction. The casing 22 forms a planar lower surface portion 221 from the inflow portion 23 toward the outflow portion 24 on the inner wall surface that becomes the lower surface after piping. The lower surface portion 221 has a slope that is lowered from the inflow portion 23 toward the outflow portion 24 at an intermediate position. That is, the central axes of the inflow portion 23 and the outflow portion 24 are substantially parallel, and the lower surface portion 221 of the casing 22 is formed with an angle with respect to the inflow portion 23 and the outflow portion 24. In this embodiment, the casing 22 is composed of an upper part and a lower part, and both are watertightly connected with an adhesive or the like. A self-sealing valve member 3 is disposed inside.
The self-sealing valve member 3 includes an opening 31 and a valve body 33 which will be described later as shown in FIGS. 20 to 22, and is disposed inside the casing 22 of the joint member 2. The self-sealing valve member 3 is made of an elastic material such as rubber, soft resin, or silicon.
The opening 31 is a component that is configured on the upstream side of the self-sealing valve member 3, has an elliptical shape when viewed in the axial direction, and has an outer surface that substantially matches the inner surface of the casing 22. . And the bottom face part 32 formed in the substantially planar shape continuously toward the valve body 33 direction is provided in the inner surface used as the lower surface of the opening part 31 when the self-sealing valve member 3 is arrange | positioned in a substantially horizontal direction. In the present embodiment, the bottom surface portion 32 constitutes an inclination that inclines downward from the opening 31 toward the valve body 33 at an intermediate position.
Further, the upstream end portion of the opening 31 is integrally configured so that an attachment portion 35 for fixing to the casing 22 protrudes outward.
The valve body 33 is a component configured on the downstream side of the self-sealing valve member 3 and is formed of an elastic plate that is formed continuously from the opening 31 and has tips that are in contact with each other. It is a shaped part. Further, in the present embodiment, the bottom surface portion 32 includes an inclined surface 36 that is inclined downward with respect to the horizontal plane. Further, the lower surface of the inflow portion 23 is substantially the same height as the bottom surface portion 32 of the self-sealing valve member 3, and the contact surface 34 of the valve body 33 is disposed on a lower surface than the lower surface of the inflow portion 23.
The valve body 33 is always in contact with water tightly to form a contact surface 34. When drainage occurs, the contact of the valve body 33 is released by the water pressure or water flow of the drainage, and the valve body 33 opens. . The drainage is configured to pass through the opening 31 of the valve body 33.

上記の自封式弁部材３又は継ぎ手部材２は以下のように配置・構成される。
図１９のように、予め工場などで、継ぎ手部材２のケーシング２２下部内に自封式弁部材３をセッティングする。この際に、自封式弁部材３の開口部３１がケーシング２２下部の流入部２３側に、そして弁体３３側はケーシング２２の流出部２４側に配置する。このとき、開口部３１はケーシング２２内壁に略合致した形状となっている。そして、継ぎ手部材２の下面部２２１上に、自封式弁部材３の底面部３２及び下側弁体３３が配置されるので、継ぎ手部材２内部の底面は途中傾斜面３６が備えられているものの実質略同一面となっている。また、流入部２３の下面は、自封式弁部材３の底面部３２と略同一高であり、更に弁体３３の当接面３４は流入部２３の下面よりさらに低い面に配置される。
また、自封式弁部材３の取付部３５を、管体１のフランジに巻き付かせて取付け、ケーシング２２の上部をケーシング２２下部に接着剤によって水密的に接続する。このとき、前記自封式弁部材３の取付部３５を挟むようにして取り付けるので、自封式弁部材３がケーシング２２より脱落するようなことがない。そして、施工現場にて、浴室の排水口に接続される管体１に継ぎ手部材２の流入部２３を水密的に接続し、その後、下流側の管体１に継ぎ手部材２の流出部２４を水密的に接続する。このようにして自封式弁部材３及び継ぎ手部材２の配置を行う。 The self-sealing valve member 3 or the joint member 2 is arranged and configured as follows.
As shown in FIG. 19, the self-sealing valve member 3 is set in the lower part of the casing 22 of the joint member 2 in advance in a factory or the like. At this time, the opening 31 of the self-sealing valve member 3 is disposed on the inflow portion 23 side of the lower portion of the casing 22, and the valve body 33 side is disposed on the outflow portion 24 side of the casing 22. At this time, the opening 31 has a shape substantially matching the inner wall of the casing 22. And since the bottom face part 32 and the lower valve body 33 of the self-sealing valve member 3 are disposed on the lower face part 221 of the joint member 2, the bottom face inside the joint member 2 is provided with an inclined surface 36 on the way. It is substantially the same surface. Further, the lower surface of the inflow portion 23 is substantially the same height as the bottom surface portion 32 of the self-sealing valve member 3, and the contact surface 34 of the valve body 33 is disposed on a lower surface than the lower surface of the inflow portion 23.
Further, the attachment portion 35 of the self-sealing valve member 3 is attached by being wound around the flange of the tube body 1, and the upper portion of the casing 22 is watertightly connected to the lower portion of the casing 22 with an adhesive. At this time, since the mounting portion 35 of the self-sealing valve member 3 is attached so as to sandwich the self-sealing valve member 3, the self-sealing valve member 3 is not dropped from the casing 22. Then, at the construction site, the inflow portion 23 of the joint member 2 is watertightly connected to the pipe body 1 connected to the drain outlet of the bathroom, and then the outflow portion 24 of the joint member 2 is connected to the downstream pipe body 1. Connect watertight. In this way, the self-sealing valve member 3 and the joint member 2 are arranged.

上記の構成の自封式弁部材３及び継ぎ手部材２では以下のような排水の流れとなる。
通常時、自封式弁部材３の弁体３３は水密的に閉口した状態である。
浴室に排水が発生すると、浴室の排水口から排水が排出され、排水口に接続された管体１内に排出される。その後、管体１内の排水は継ぎ手部材２の流入部２３から継ぎ手部材２内部に流入する。そして流入部２３からケーシング２２内部に排水が流入し、自封式弁部材３の開口部３１から弁体３３に流入する。このとき、流入部２３から自封式弁部材３の開口部３１の底面部３２、更に弁体３３まで傾斜面３６を備えた平面形状となっているため、排水は遮蔽物によって阻害されることなく円滑に弁体３３まで流れ着く。そして図２３のように排水の水圧により弁体３３が開口し、当接面３４が解除される。弁体３３が開口し、排水が下流側へと排水されることとなる。そして、自封式弁部材３を通過した排水はケーシング２２内から流出部２４へと排水され、流出部２４から継ぎ手部材２外である管体１下流へと排水される。管体１内に排水された排水は最終的には下水管へと排水される。このとき、弁体３３の当接面３４は底面部３２と平行且つ、底面が傾斜面３６となっている為、排水が弁体３３の当接面３４までの高さ分水残りがするといった問題が無い。また、弁体３３の当接面３４の向きを、軸方向視底面部３２と平行に構成しているので、軸方向視底面部３２に対して垂直に配置した時と比較して開口面積が大きくなり、排水流量が向上する。これは、ケーシング２２及び自封式弁部材３の開口部３１の形状が楕円である為、長辺と短辺方向が存在するので、自封式弁部材３の弁体３３当接面３４の向きを、短辺方向にするよりも長辺方向にしたほうが、弁体３３の開口面積が大きくなる為である。
また、排水が終了すると、図１９のように自封式弁部材３の弁体３３は自身の弾性もしくは復元力により自動的に閉口し、弁体３３同士の当接により当接面３４が構成される。そして、弁体３３が閉口するので、下水下流からの異臭や害虫が室内側に逆流することがない。 The self-sealing valve member 3 and the joint member 2 configured as described above have the following drainage flow.
Normally, the valve element 33 of the self-sealing valve member 3 is in a state of being watertightly closed.
When drainage is generated in the bathroom, the drainage is discharged from the drainage port of the bathroom and is discharged into the pipe body 1 connected to the drainage port. Thereafter, the drainage in the pipe body 1 flows into the joint member 2 from the inflow portion 23 of the joint member 2. Then, wastewater flows into the casing 22 from the inflow portion 23, and flows into the valve body 33 from the opening 31 of the self-sealing valve member 3. At this time, the drainage is not hindered by the shielding because it has a planar shape including the inclined surface 36 from the inflow portion 23 to the bottom surface portion 32 of the opening 31 of the self-sealing valve member 3 and further to the valve body 33. Smoothly reaches the valve body 33. Then, as shown in FIG. 23, the valve element 33 is opened by the water pressure of the drainage, and the contact surface 34 is released. The valve body 33 is opened, and the drainage is drained downstream. The drainage that has passed through the self-sealing valve member 3 is drained from the inside of the casing 22 to the outflow portion 24, and is drained from the outflow portion 24 to the downstream of the pipe body 1 outside the joint member 2. The waste water drained into the pipe body 1 is finally drained into the sewer pipe. At this time, since the contact surface 34 of the valve body 33 is parallel to the bottom surface portion 32 and the bottom surface is an inclined surface 36, the drainage is left as much as the water up to the contact surface 34 of the valve body 33. There is no problem. Moreover, since the direction of the contact surface 34 of the valve element 33 is configured to be parallel to the axial view bottom surface portion 32, the opening area is larger than when the valve body 33 is disposed perpendicular to the axial view bottom surface portion 32. Increases the drainage flow rate. Since the shape of the opening part 31 of the casing 22 and the self-sealing valve member 3 is an ellipse, the long side and the short side direction exist. Therefore, the direction of the valve element 33 contact surface 34 of the self-sealing valve member 3 is changed. This is because the opening area of the valve element 33 is larger in the long side direction than in the short side direction.
When drainage is completed, the valve body 33 of the self-sealing valve member 3 is automatically closed by its own elasticity or restoring force as shown in FIG. The And since the valve body 33 closes, the bad smell and pest from the downstream of a sewage do not flow backward indoors.

本発明は前記した実施例のほか、特許請求の範囲を越えない範囲で適宜変更は可能である。
例えば、図２４又は図２５に示したように、自封式弁部材３の弁体３３に、軸方向視下側方向に向かって凹む溝部３７を構成しても良い。底面部３２より更に下方に溝部３７が凹んで構成されているので、弁体３３の当接面３４の高さも溝部３７に合わせて下方に凹む為、当接面３４の高さまでの排水の水残りが発生することがない。また、この実施例においては、継ぎ手部材２のケーシング２２も自封式弁部材３の溝部３７と合致するように合わせて溝部３７を構成しても良い。また、このとき、図２６乃至図２８に示したように上側の弁体３３側にも溝部を（下側の弁体３３の溝部３７に合致するように）構成しても良い。とこのようにすることで、更に弁体３３の開口性能が向上する。
また、上記実施例では自封式弁部材３の開口部３１の軸方向視形状及び継ぎ手部材２のケーシング２２の軸方向視形状を楕円形状としているが、これは非円形形状であればかまわない。例えば、軸方向視形状を四角形、長方形や多角形形状、正方形等にしてもかまわない。
また、前記実施例では浴室及び洗面台に自封式弁部材３及び継ぎ手部材２を使用しているが、これに限定されるものではなく、台所やトイレ等の排水管に用いられてもよいし、排水縦管に用いられても構わない。また、排水管に使用されているが、上水管に用いてもよいし、通気管やガス管等の気体が用いられる管体１に用いられても良い。
そのほか、自封式弁体２の形状を、図２９乃至図３１のように開口部３１から弁体３３にかけて、上面視傾斜するように構成してもよい。
また、継ぎ手部材２の形状を、図３２のように自封式弁体２の形状に合わせてケーシング後端を傾斜するように構成しても構わない。このようにすることでケーシング内部の排水の乱流を防ぐことが出来る。
また、前記実施例では自封式弁部材３を排水トラップとして用いているが、例えば通気用弁体３３として用いても良いし、図３３に示したように、オーバーフロー配管内部に設置して、ゴボゴボ音を遮断する為の遮音部材用弁体３３として用いられても良い。また、図３４に示したように、浴室の排水トラップの排水枝管内に設置して、排水枝管の排水の逆流防止弁として用いても良い。 In addition to the above-described embodiments, the present invention can be modified as appropriate without departing from the scope of the claims.
For example, as shown in FIG. 24 or FIG. 25, a groove portion 37 that is recessed toward the lower side in the axial direction may be formed in the valve body 33 of the self-sealing valve member 3. Since the groove portion 37 is recessed below the bottom surface portion 32, the height of the contact surface 34 of the valve body 33 is also recessed downward in accordance with the groove portion 37, so that the drainage water up to the height of the contact surface 34 can be obtained. The rest will not occur. In this embodiment, the groove portion 37 may be configured so that the casing 22 of the joint member 2 also matches the groove portion 37 of the self-sealing valve member 3. Further, at this time, as shown in FIGS. 26 to 28, a groove portion may be formed also on the upper valve body 33 side (so as to match the groove portion 37 of the lower valve body 33). By doing in this way, the opening performance of the valve body 33 further improves.
Moreover, in the said Example, although the axial view shape of the opening part 31 of the self-sealing valve member 3 and the axial view shape of the casing 22 of the joint member 2 are made into elliptical shape, this may be non-circular shape. For example, the axial view shape may be a square, a rectangle, a polygon, a square, or the like.
Moreover, in the said Example, although the self-sealing valve member 3 and the joint member 2 are used for a bathroom and a washstand, it is not limited to this, You may use for drain pipes, such as a kitchen and a toilet. The drainage pipe may be used. Moreover, although used for a drain pipe, you may use for a water pipe, and may be used for the pipe body 1 in which gas, such as a vent pipe and a gas pipe, is used.
In addition, the shape of the self-sealing valve body 2 may be configured so as to be inclined in a top view from the opening 31 to the valve body 33 as shown in FIGS. 29 to 31.
Moreover, you may comprise so that the shape of the joint member 2 may incline the casing rear end according to the shape of the self-sealing valve body 2 as shown in FIG. By doing in this way, the turbulent flow of the waste_water | drain inside a casing can be prevented.
In the above-described embodiment, the self-sealing valve member 3 is used as a drain trap. However, for example, it may be used as a vent valve body 33, or as shown in FIG. You may use as the valve body 33 for sound insulation members for interrupting | blocking a sound. Moreover, as shown in FIG. 34, it may be installed in the drain branch pipe of the drain trap of the bathroom and used as a backflow prevention valve for drainage of the drain branch pipe.

１配管（管体）
２継ぎ手部材
２２ケーシング
２２１下面部
２３流入部
２４流出部
３自封式弁部材
３１開口部
３２底面部
３３弁体
３４当接面
３５取付部
３６傾斜面
３７溝部 1 Piping (Tube)
2 Joint member 22 Casing 221 Lower surface portion 23 Inflow portion 24 Outflow portion 3 Self-sealing valve member 31 Opening portion 32 Bottom surface portion 33 Valve body 34 Contact surface 35 Mounting portion 36 Inclined surface 37 Groove portion

Claims

A joint member connected to the pipe 1 arranged substantially vertically,
A casing 22 in which a self-sealing valve member is arranged to have a non-circular shape when viewed in the axial direction ;
An inflow portion 23 through which fluid from the upstream flows into the casing 22;
An outflow portion 24 for allowing the fluid in the casing 22 to flow downstream;
A joint member comprising:
A self-sealing type valve member which is disposed in the joint member,
The axial shape formed on the upstream side is a non-circular shape, and the opening 31 is formed with a larger flow area than the pipe 1 ;
A pair of valve bodies 33 formed continuously from the opening 31 and formed in an elastic plate shape whose tips abut each other;
In a self-sealing valve member composed of: a self-sealing valve member composed of:
A self-sealing valve member and a joint member, wherein the outer surface of the opening 31 is shaped to substantially match the inner surface of the casing 22.

Arranged in the joint member connected to the pipe 1 arranged substantially horizontally,
An opening 31 formed on the upstream side in a non-circular shape in the axial direction ;
A pair of valve bodies 33 formed continuously from the opening 31 and formed in an elastic plate shape whose tips abut each other;
A self-sealing valve member comprising:
The bottom surface of the opening 31 is provided with a bottom surface 32 that is at least partially configured in a planar shape,
A self-sealing valve member , wherein the lower valve body 33 is formed continuously from the bottom surface portion 32 of the opening 31 toward the valve body 33 ;
The self-sealing valve member is a joint member disposed inside,
A casing 22 in which a self-sealing valve member is disposed;
An inflow portion 23 through which fluid from the upstream flows into the casing 22;
An outflow portion 24 for allowing the fluid in the casing 22 to flow downstream;
And consisting of
The lower surface of the casing 22 is a lower surface portion 221 having a shape that substantially matches the shape of the bottom surface portion 32 of the self-sealing valve member, and the lower surface portion 221 is disposed at a position lower than the lower surface of the pipe 1, and A self-sealing valve member and a joint member, wherein the valve body 33 is disposed on the lower surface portion 221.

The self-sealing valve member according to claim 2 , wherein the bottom surface portion 32 of the opening portion 31 is formed in a substantially horizontal plane continuously from the opening portion 31 toward the valve body 33 .

The self-sealing valve member according to claim 2 or 3 , wherein a groove portion 37 is formed in the bottom surface portion 32 of the opening portion 31 toward the valve body 33.

The self-sealing valve according to any one of claims 2 to 4 , wherein the bottom surface portion 32 of the opening 31 is provided with an inclined surface 36 inclined downward toward the valve body 33. Element.

The self-sealing type according to any one of claims 2 to 5 , wherein the contact surface 34 of the valve element 33 is disposed substantially parallel to the bottom surface portion 32 in the axial view of the opening 31. Valve member.

The joint member according to claim 6, wherein the casing 22 has a non-circular shape when viewed in the axial direction .

The self-sealing valve member and the joint member according to any one of claims 1 to 7 , wherein the casing 22 or the self-sealing valve member is inclined with respect to the pipe 1.

The joint member according to any one of claims 1 to 8 , wherein the inflow portion 23 and the outflow portion 24 have a circular shape.

The self-sealing valve member and the joint member according to any one of claims 2 to 9, wherein the self-sealing valve member and the joint member are configured as an overflow pipe of a wash basin.