JP6035471B2

JP6035471B2 - Drain pipe

Info

Publication number: JP6035471B2
Application number: JP2011199317A
Authority: JP
Inventors: 木村　裕史; 裕史木村; 大輔服部
Original assignee: 丸一株式会社
Priority date: 2011-09-13
Filing date: 2011-09-13
Publication date: 2016-11-30
Anticipated expiration: 2031-09-13
Also published as: JP2013060737A

Description

本発明は空調機器や潜熱回収型燃焼装置等のドレン（凝結水）用排水配管、及び洗面台、シンク等の槽体に取り付けられる排水配管に関するものである。 The present invention relates to a drain (condensed water) drain pipe such as an air conditioner or a latent heat recovery combustion apparatus, and a drain pipe attached to a tank body such as a washstand and a sink.

従来においては、洗面台、シンク等、使用によって排水が発生する家庭用設備が知られている。これら家庭用設備においては、槽体下部に、使用によって生じた排水を排水口から床下配管へ導く排水配管が備えられている。 Conventionally, household equipment such as a wash basin, a sink, and the like that generates wastewater by use is known. In these household facilities, a drainage pipe for guiding drainage generated by use from the drainage port to the underfloor pipe is provided at the bottom of the tank body.

上記家庭用設備における排水配管では、単純に排水を下水側へと繋ぐと、下水側と家庭用設備が連通していることにより、下水側より臭気や害虫が配管内部を通り、屋内に侵入することとなる。そのため、排水配管においては、排水配管の途中に、排水管と連結し、下水からの害虫、及び異臭を防ぐための排水トラップが設けられている。 In the drainage pipe in the above household equipment, simply connecting the drainage to the sewage side, the sewage side and the household equipment are in communication, so that odors and pests enter the pipe from the sewage side and enter the interior. It will be. Therefore, in the drainage pipe, a drainage trap is provided in the middle of the drainage pipe to connect with the drainage pipe and prevent harmful insects and odors from the sewage.

また空調機器や潜熱回収型燃焼装置の排水配管においては、その使用に際し凝結水が発生する。該凝結水は、ドレン管を通じて外へ流さなければならないが、この場合においても前述の排水機器の場合と同様に、下水からの害虫、及び異臭を防ぐための排水トラップが設けられている。 Condensed water is generated in the drainage pipes of air conditioners and latent heat recovery combustion devices. The condensed water must flow outside through the drain pipe, and in this case as well, as in the case of the above-described drainage device, a drainage trap is provided to prevent pests from the sewage and a strange odor.

ところで、前記下水からの害虫、及び異臭を防ぐための排水トラップとして、内部に封水と呼ばれる排水の溜まり部分を設け、流路の一部を排水で満たすことによって封じ、臭気や害虫類の逆流を防ぐトラップ機能を備えた封水式排水トラップと呼ばれる排水トラップが一般的である。 By the way, as a drainage trap for preventing harmful insects and odors from the sewage, a drainage reservoir called sealed water is provided inside, and the flow path is sealed by filling a part of the channel with drainage, and the backflow of odors and pests In general, a drainage trap called a sealed drainage trap having a trap function for preventing water is used.

しかし、上記封水式排水トラップにおいては、長期の留守等の理由で長期期間排水機器等を使用しないと内部の封水が蒸発し、流路が開放されて臭気や害虫類の逆流を防ぐことが出来なくなる、破封と呼ばれる現象を生じる問題がある。特に冬場の空調機器の使用においては、凝結水が室内機側から発生せず、排水トラップ内部に新しい排水（封水）が追加されない為に、夏場の使用よりも破封が生じやすい。 However, in the above-mentioned sealed drainage trap, if the drainage equipment is not used for a long period of time due to long absence, etc., the internal sealing water will evaporate and the flow path will be opened to prevent the back flow of odors and pests. There is a problem that causes a phenomenon called breakage. Especially in the use of air conditioning equipment in winter, condensed water is not generated from the indoor unit side, and new drainage (sealing water) is not added inside the drain trap, so breakage is more likely to occur than in summer.

そこで、封水を使用しない非封水式排水トラップが提案されている。 Therefore, a non-sealed drain trap that does not use sealed water has been proposed.

特開２０１１−０８９３５９JP2011-089359A 特開２０１０−７３５８JP 2010-7358

前記非封水式排水トラップとして、例えば図２に記載されたような、略筒体状であって、可撓性を有する素材から成る、自封トラップと呼ばれる自封装置が知られている。該自封装置は一端が開口して流入口を形成し、他端に流出口を形成している。該流出口は、筒体の中間部より、断面略三角形状となる様、対向する面同士に傾斜が設けられ、該面同士が当接する構成によって流路を閉塞している。自封装置は該構造より、流入口からの空気、排水等の侵入による一定の圧力が生じた際には流出口の閉塞が解除されて排水を通すが、流出口から臭気等の侵入による圧力が生じても、流出口は閉塞を保ち、上流側へ臭気、害虫等が逆流することはない。 As the non-sealing drainage trap, for example, a self-sealing device called a self-sealing trap which is made of a material having a substantially cylindrical shape and flexibility as shown in FIG. 2 is known. The self-sealing device has one end opened to form an inlet and the other end formed an outlet. The outflow port is provided with an inclination between opposing faces so as to have a substantially triangular cross section from the middle part of the cylinder, and the flow path is closed by a configuration in which the faces abut against each other. Due to this structure, the self-sealing device releases the blockage of the outlet and allows the drainage to flow when a certain pressure is generated due to intrusion of air, drainage, etc. from the inlet. Even if it occurs, the outflow port remains blocked, and odors, pests, etc. do not flow backward to the upstream side.

また、排水配管は使用者や施工者の都合に応じて、その都度種々のレイアウトに変更して使用されるものである。しかし横管内に自封装置を設けた場合、流出口を開口するに足る一定の圧力を得ることは難しく、自封装置の閉塞の解除が成されるまで、横管内に大量の残留排水が充満してしまうという問題があった。 Moreover, drainage piping is used by changing to various layouts each time according to the convenience of the user and the installer. However, when a self-sealing device is installed in the horizontal pipe, it is difficult to obtain a certain pressure sufficient to open the outlet, and a large amount of residual drainage is filled in the horizontal pipe until the closure of the self-sealing device is released. There was a problem that.

そこで、例えば図３に示したように、横管配置用に特化した形状の自封トラップを横管に配置する方法が知られているが、この場合、横管用の自封トラップを新たに用意する必要があった。又、この様に横管用に形状を特化させた自封トラップであっても、流出口を開口するに足る一定の圧力を得ることは容易ではなかった。更に、自封トラップの固定の為の突起が管内下方から突出しているため、該突出部から上流にかけては、常に排水が残留していた。つまり、自封装置の閉塞の解除が成されるまで横管内に大量の残留排水が充満してしまうという問題は何ら解決されていなかった。 Therefore, for example, as shown in FIG. 3, there is known a method of arranging a self-sealing trap having a shape specialized for horizontal tube placement on the horizontal tube. In this case, a new self-sealing trap for the horizontal tube is prepared. There was a need. Further, even with such a self-sealing trap specialized in shape for a horizontal tube, it has not been easy to obtain a certain pressure sufficient to open the outlet. Furthermore, since the protrusion for fixing the self-sealing trap protrudes from the lower part in the pipe, the drainage always remained from the protruding part to the upstream. That is, the problem that a large amount of residual drainage is filled in the horizontal pipe until the closure of the self-sealing device is released has not been solved.

そこで本発明は、上述した従来技術の問題に鑑み、縦管、横管に関わりなく、同一の自封装置を使用し、且つ自封装置の動作を確実なものとし、配管内の排水残りを防止することが可能である排水配管を提供することを課題とする。 Therefore, in view of the above-described problems of the prior art, the present invention uses the same self-sealing device regardless of the vertical tube and the horizontal tube, and ensures the operation of the self-sealing device, and prevents drainage remaining in the pipe. It is an object of the present invention to provide a drain pipe that can be used.

上記課題を解決するための請求項１に記載の発明は、
排水機器の排水を処理する排水配管において、
前記排水配管は流入口と流出口を有する自封装置を備えており、
前記自封装置は略筒体状にして可撓性を有する素材から成り、
自封装置は内部からの圧力が生じた場合においてのみ前記流出口が開口し、外部からの圧力に対しては閉塞状態を維持する構成であって、
前記排水配管は自封装置が保持される箇所において点検口を有し、
前記点検口には、自封装置を保持する保持部を有する点検栓が配置され、
当該点検口より点検栓に保持された自封装置が挿入されるとともに、
前記自封装置が排水配管の軸に対して傾斜する位置であって、前記自封装置の流入口が流出口より天地方向に高くなるように保持されていることを特徴とする排水配管である。
The invention according to claim 1 for solving the above-mentioned problem is as follows.
In drainage pipes that treat drainage from drainage equipment,
The drainage pipe is equipped with a self-sealing device having an inlet and an outlet,
The self-sealing device is made of a material having flexibility in a substantially cylindrical shape,
The self-sealing device is configured to open the outlet only when pressure from the inside occurs, and maintain a closed state against pressure from the outside,
The drainage pipe has an inspection port at a place where the self-sealing device is held,
In the inspection port, an inspection plug having a holding part for holding the self-sealing device is arranged,
The self-sealing device held by the inspection plug is inserted from the inspection port,
The self-sealing device is a position where the self-sealing device is inclined with respect to the axis of the drainage piping, and the inflow port of the self-sealing device is held so as to be higher in the vertical direction than the outflow port .

請求項２に記載の発明は、
前記排水配管が縦管若しくは横管として使用出来る兼用管であることを特徴とする請求項１に記載の排水配管である。
The invention described in claim 2
The drain pipe according to claim 1, wherein the drain pipe is a dual-purpose pipe that can be used as a vertical pipe or a horizontal pipe.

請求項３に記載の発明は、
排水機器の排水を処理する排水配管において、
前記排水配管は上流部、偏芯部、下流部を有し、
前記偏芯部において、上流部と下流部の軸をずらし、
且つ前記偏芯部内に前記自封装置を配置したことを特徴とする請求項１若しくは請求項２に記載の排水配管である。 The invention according to claim 3
In drainage pipes that treat drainage from drainage equipment,
The drainage pipe has an upstream part, an eccentric part, and a downstream part,
In the eccentric part, the axes of the upstream part and the downstream part are shifted,
The drainage pipe according to claim 1 or 2, wherein the self-sealing device is disposed in the eccentric part.

請求項４に記載の発明は、
前記自封装置は一端に流入口を、対向する端部に流出口を備えており、筒体の一部において傾斜面を形成し、内面同士が当接することで筒体が閉塞する流出口を形成し、
流入口から流出口へ流れようとする気体、液体、泡などの流体の圧力に対して弾性変形して筒体内部を開口して流体を通過させると共に、
流出口から流入口へ流れようとする流体の圧力に対しては閉塞した状態を維持して流体の通過を防止する自封装置であ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つに記載の排水配管である。 The invention according to claim 4
The self-sealing device has an inlet at one end and an outlet at the opposite end, forms an inclined surface in a part of the cylinder, and forms an outlet that closes the cylinder by contacting the inner surfaces. And
While elastically deforming against the pressure of a fluid such as gas, liquid, foam, etc. that flows from the inlet to the outlet, the inside of the cylindrical body is opened and the fluid is allowed to pass through.
4. The self-sealing device according to claim 1, wherein the self-sealing device maintains a closed state with respect to a pressure of a fluid to flow from the outlet to the inlet and prevents passage of the fluid. This is the drainage pipe described in 1.

本発明の排水配管は、内部に自封機能を備える自封装置を有し、且つ該自封装置を排水配管の軸方向に対して傾斜し、角度を与えて保持してある為、縦管、横管を兼用することが可能である。特に横管として使用した際においては、自封装置の流入口が流出口より天地方向において高い位置に配置されることになるため、排水配管の軸と平行に配置した場合と比べて、排水により強い圧力を付与することが出来、少ない排水による閉塞の解除が可能となる。従って、自封装置上流の排水配管内に排水が残留せず、効率の良い動作が可能となる。 The drainage pipe of the present invention has a self-sealing device having a self-sealing function inside, and the self-sealing device is inclined with respect to the axial direction of the drainage pipe and is held at an angle. Can also be used. In particular, when used as a horizontal pipe, the inlet of the self-sealing device will be placed higher in the top and bottom direction than the outlet, so it is more resistant to drainage than when placed parallel to the axis of the drainage pipe. Pressure can be applied, and it becomes possible to release the blockage with little drainage. Therefore, drainage does not remain in the drain pipe upstream of the self-sealing device, and efficient operation is possible.

また、排水配管は上流部、偏芯部、下流部を有し、偏芯部において上流部と下流部との軸をずらし、且つ偏芯部内に自封装置を配置したことにより、上流部の内径と略同型の自封装置を傾斜して設置することが可能となった。 In addition, the drainage pipe has an upstream part, an eccentric part, and a downstream part. In the eccentric part, the axis of the upstream part and the downstream part is shifted, and a self-sealing device is arranged in the eccentric part, so that the inner diameter of the upstream part It is possible to install a self-sealing device of the same type as

本発明に係る排水配管を横管として使用した状態を示す断面図である。It is sectional drawing which shows the state which used the drain piping which concerns on this invention as a horizontal pipe. 従来の自封装置を示すa)平面図、b)正面図、c)側面図である。It is a) top view, b) front view, and c) side view showing a conventional self-sealing device. 従来の横管用自封装置を横管内に配置している配管例を示す断面図である。It is sectional drawing which shows the example of piping which has arrange | positioned the conventional self-sealing apparatus for horizontal pipes in a horizontal pipe.

以下に、本発明の実施例について、図面を参照しながら詳細に説明する。尚、以下の説明は、実施例の理解を容易にするためのものであり、これによって、本発明が制限して理解されるべきではない。また、以下の説明では、上下左右の位置関係は、特に断りのない限り、図１の様に本発明の排水配管１を横管として設置した状態を基準として説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the following description is for making an understanding of an Example easy, and, as a result, this invention should not be limited and understood. In the following description, the positional relationship between the top, bottom, left, and right will be described based on the state where the drainage pipe 1 of the present invention is installed as a horizontal pipe as shown in FIG. 1 unless otherwise specified.

本実施例の排水配管１は図１に示すように偏芯管２、自封装置１０、点検栓２０より構成されており、本実施例の排水配管１の上流には排水機器（図示せず）と接続している配管３０が、下流には下水側へと続く配管４０がそれぞれ連結されている。 As shown in FIG. 1, the drainage pipe 1 of this embodiment is composed of an eccentric pipe 2, a self-sealing device 10, and a check plug 20. A drainage device (not shown) is disposed upstream of the drainage pipe 1 of this embodiment. A pipe 30 connected to the pipe is connected to a downstream pipe 40 connected downstream.

偏芯管２は内部に排水流路を有する管体であり、排水機器側に接続される上流部３と、下水側に接続される下流部５と、前記上流部３と下流部５を周方向へ偏芯させて繋ぐ偏芯部４とから構成され、且つ偏芯部４の上方に、後述する自封装置１０及び点検栓２０を脱着・点検する為の点検口６が開口している。上流部３と、偏芯部４、下流部５の内径は略同型であり、上流部３と下流部５は、それぞれ配管３０と配管４０が内部に接続される為に端部が拡径している。偏芯部４は上流部３側において垂下する当接壁７を有し、該当接壁７下端より略平行に伸びた後の部分より傾斜し、下流部５へ連続する。又、前記上流部３と下流部５は、中心軸の位置は相違するが、軸方向において互いに平行に延出している。 The eccentric pipe 2 is a pipe body having a drainage channel inside, and an upstream portion 3 connected to the drainage device side, a downstream portion 5 connected to the sewage side, and the upstream portion 3 and the downstream portion 5 are surrounded. An inspection port 6 for opening and closing a self-sealing device 10 and an inspection plug 20 which will be described later is opened above the eccentric portion 4. The inner diameters of the upstream part 3, the eccentric part 4, and the downstream part 5 are substantially the same type, and the upstream part 3 and the downstream part 5 have their diameters expanded because the pipe 30 and the pipe 40 are connected to the inside. ing. The eccentric portion 4 has an abutting wall 7 that hangs down on the upstream portion 3 side, is inclined from a portion that extends substantially parallel to the lower end of the corresponding wall 7, and continues to the downstream portion 5. The upstream portion 3 and the downstream portion 5 extend in parallel to each other in the axial direction, although the positions of the central axes are different.

自封装置１０は、可撓性を有する材質から成る略円筒形状であり、一端に排水が流入する流入口１１を、対向する端部に排水が流出する流出口１２を有している。流入口１１は円形の開口であり、流出口１２は円筒の一端を押し潰し、軸上で重ね合わせた形状をしており、内部より圧力が掛からない限りにおいて閉塞している。従って、流入口１１から流出口１２に向けて排水が流れる際には、該排水の圧力により流出口１２の閉塞が拡開され、下流へ排水が排出されるが、排水の無い場合において流出口１２は閉塞されており、臭気や害虫の下流からの侵入を防ぐ。また、流入口１１側端部は拡径しており、フランジを形成している。本明細書における自封装置１０は上面視において略三角形状をしており、前述した図２に記載の、従来より知られる自封装置と、流入口側端部にフランジを有する以外において形状に差異は無い。自封装置１０は上記の様な構成により、非封水式排水トラップとして扱われる。 The self-sealing device 10 has a substantially cylindrical shape made of a flexible material. The self-sealing device 10 has an inlet 11 through which drainage flows into one end and an outlet 12 through which drainage flows out at an opposite end. The inflow port 11 is a circular opening, and the outflow port 12 has a shape in which one end of a cylinder is crushed and overlapped on an axis, and is closed as long as no pressure is applied from the inside. Accordingly, when drainage flows from the inlet 11 to the outlet 12, the outlet 12 is blocked by the pressure of the drainage, and the drainage is discharged downstream. 12 is obstructed and prevents intrusion from the downstream of odors and pests. Moreover, the inflow port 11 side edge part is diameter-expanding and forms the flange. The self-sealing device 10 in the present specification has a substantially triangular shape in a top view. The self-sealing device shown in FIG. 2 is different from the conventional self-sealing device shown in FIG. 2 except that it has a flange at the inlet side end. No. The self-sealing device 10 is treated as a non-sealing drainage trap with the above-described configuration.

また、閉塞解除ラインＷは、自封装置１０の流出口１２の閉塞を解除する為に必要な水量を表すラインであり、該閉塞解除ラインＷよりも多くの排水が貯留された場合、例え排水に勢いが無くとも、排水の自重によって流出口１２の閉塞は解除される。 The blockage release line W is a line representing the amount of water necessary to release the blockage of the outflow port 12 of the self-sealing device 10. If more drainage is stored than the blockage release line W, for example, drainage Even if there is no momentum, the blocking of the outlet 12 is released by the weight of the drainage.

点検栓２０は点検口６に設置される部材であり、取り出し部２１と保持部２２と流路形成部２３を有する。取り出し部２１は上面に開口した有底筒状であり、取り出し部２１の外径は前記点検口６の内径と略等しく、且つ外周に環状のパッキン２６が設けられている。保持部２２は取り出し部２１の下方に位置し、自封装置１０を内周より固定する円形の開口を有する。また、保持部２２は下方側が流路形成部２３に近接するよう傾斜しており、前記開口もそれに伴い傾斜している。開口の周囲には楕円形状の壁が設けられており、該壁の周囲には楕円形のパッキン２７が嵌合している。流路形成部２３は上流部３の内径と同径であり、配置時において上流部３の流路と連続する。 The inspection plug 20 is a member installed in the inspection port 6, and has a take-out part 21, a holding part 22, and a flow path forming part 23. The take-out portion 21 has a bottomed cylindrical shape opened on the upper surface, and the take-out portion 21 has an outer diameter substantially equal to the inner diameter of the inspection port 6, and an annular packing 26 is provided on the outer periphery. The holding part 22 is located below the take-out part 21 and has a circular opening for fixing the self-sealing device 10 from the inner periphery. The holding part 22 is inclined so that the lower side is close to the flow path forming part 23, and the opening is also inclined accordingly. An elliptical wall is provided around the opening, and an elliptical packing 27 is fitted around the wall. The flow path forming part 23 has the same diameter as the inner diameter of the upstream part 3 and is continuous with the flow path of the upstream part 3 at the time of arrangement.

本発明の排水配管１の組み立ては以下の様に行われる。 The assembly of the drain pipe 1 of the present invention is performed as follows.

まず、点検栓２０の下方に設けられた、保持部２２の開口に自封装置１０を挿入する。この際、保持部２２の開口は自封装置１０の内側と当接する。該当接後、リング２４を自封装置１０の外側より嵌入し、保持部２２とリング２４によって自封装置１０を挟止する。これにより、流路形成部２３と自封装置１０の内部は連続した排水流路となるが、保持部２２は傾斜している為、自封装置１０は流路形成部２３に対して傾斜して取り付けられ、内部の流路が流路形成部２３と自封装置１０との境目において屈折する。 First, the self-sealing device 10 is inserted into the opening of the holding portion 22 provided below the inspection plug 20. At this time, the opening of the holding portion 22 contacts the inside of the self-sealing device 10. After the contact, the ring 24 is inserted from the outside of the self-sealing device 10, and the self-sealing device 10 is clamped by the holding portion 22 and the ring 24. As a result, the flow path forming portion 23 and the inside of the self-sealing device 10 become a continuous drainage flow channel, but the holding portion 22 is inclined, so that the self-sealing device 10 is attached with an inclination to the flow path forming portion 23. The internal flow path is refracted at the boundary between the flow path forming portion 23 and the self-sealing device 10.

次に、自封装置１０を取り付けた点検栓２０を点検口６より挿入する。この時、取り出し部２１の外径が点検口６の内径と略等しく、且つ外周にパッキン２６が設けられている為、点検栓２０は点検口６と水密に嵌合する。また、取り出し部２１（流路形成部２３）の下方は前記偏芯部４の当接壁７と当接し、該当接部分と取り出し部２１の下流側下端とを繋ぐ楕円状のパッキン２７によって偏芯部４の内周は水密に封鎖され、嵌合後において排水が流路形成部２３以外に侵入することはない。そして、該取り付けの際において、流路形成部２３と上流部３の内径が略同一である為、上流部３と流路形成部２３が当接している部分は段差無く面一に連続して排水を排出する。また、この時自封装置１０は上流部３、及び下流部５の軸方向に対して下方に傾斜して固定される形となる。 Next, the inspection plug 20 to which the self-sealing device 10 is attached is inserted from the inspection port 6. At this time, since the outer diameter of the take-out portion 21 is substantially equal to the inner diameter of the inspection port 6 and the packing 26 is provided on the outer periphery, the inspection plug 20 is fitted in the inspection port 6 in a watertight manner. The lower part of the take-out part 21 (flow path forming part 23) is in contact with the abutting wall 7 of the eccentric part 4 and is offset by an elliptical packing 27 that connects the corresponding contact part and the lower end of the take-out part 21 on the downstream side. The inner periphery of the core part 4 is sealed in a water-tight manner, and the drainage does not enter other than the flow path forming part 23 after fitting. In addition, since the inner diameters of the flow path forming portion 23 and the upstream portion 3 are substantially the same at the time of the attachment, the portion where the upstream portion 3 and the flow path forming portion 23 are in contact with each other is continuously flush without any step. Drain the waste water. At this time, the self-sealing device 10 is fixed so as to be inclined downward with respect to the axial direction of the upstream portion 3 and the downstream portion 5.

この様にして、一連の排水流路が完成する。該排水流路に排水が流れた場合、排水は排水機器より、上流側の配管３０、上流部３、流路形成部２３、自封装置１０の流入口１１、流出口１２、下流部５、配管４０の順に通過し、下水側へと流れていく。この際、自封装置１０の流入口１１下端が流出口１２下端より天地方向に高い位置に配置される為、流路形成部２３と自封装置１０との境目において、排水流路は下方に屈折する。 In this way, a series of drainage channels is completed. When drainage flows into the drainage channel, the drainage from the drainage device is upstream piping 30, upstream portion 3, channel formation portion 23, inlet 11, outlet 12, downstream portion 5, piping of self-sealing device 10. Passes in the order of 40 and flows to the sewage side. At this time, since the lower end of the inlet 11 of the self-sealing device 10 is arranged at a position higher in the vertical direction than the lower end of the outlet 12, the drainage flow path is refracted downward at the boundary between the flow path forming portion 23 and the self-sealing device 10. .

排水が流れている間、流入口１１より流出口１２側へと一定以上の圧力が掛かることによって流出口１２の閉塞が解除され、排水を下流部５側へと排出する。 While the drainage is flowing, a certain pressure or more is applied from the inlet 11 to the outlet 12, so that the outlet 12 is closed, and the drainage is discharged to the downstream portion 5 side.

排水終了時付近において、排水に勢いがなくなった場合、流出口１２は再び閉塞される。この際、上流部３と流路形成部２３は面一に形成されている為、貯留される排水は全て自封装置１０の内部に溜まり、上流の配管内には排水が残らない。そして閉塞解除ラインＷよりも上方まで排水が貯留されると、排水の自重によって再び排出口１２が拡開し、排水を下流へと流す。従って、閉塞解除ラインＷよりも上方まで排水が貯留されることはない。 If the drainage loses momentum near the end of drainage, the outlet 12 is closed again. At this time, since the upstream portion 3 and the flow path forming portion 23 are formed flush with each other, all of the stored wastewater is accumulated inside the self-sealing device 10, and no wastewater remains in the upstream pipe. When the drainage is stored above the blockage release line W, the discharge port 12 is expanded again by the weight of the drainage, and the drainage flows downstream. Accordingly, the drainage is not stored up to above the blockage release line W.

つまり、本構成によれば、流入口１１が流出口１２よりも天地方向に高い位置に配置されていることによって、残留する排水は全て自封装置１０へと流れて溜まる為、管内に残留する排水は最小限に抑えられる。 That is, according to this configuration, since the inflow port 11 is arranged at a position higher than the outflow port 12 in the top-and-bottom direction, all the remaining drainage flows to the self-sealing device 10 and accumulates. Is minimized.

当該作用は、空調機器等の使用によって少量の排水（ドレン水）が勢い無く断続的に流れて来た場合にも同様である。断続的に少量の排水が流れてきても、閉塞解除ラインＷよりも排水貯留量が多くなれば、自封装置１０は流出口１２を拡開し、排水を順次下流へ排出し、該排出後、再び閉塞する。 The operation is the same when a small amount of drainage (drain water) flows intermittently with the use of an air conditioner or the like. Even if a small amount of drainage flows intermittently, if the drainage storage amount is larger than the blockage release line W, the self-sealing device 10 opens the outlet 12 and sequentially discharges the drainage downstream. Block again.

また、本実施例における排水配管１では、偏芯管２に点検口６を設けている為、点検口６より点検栓２０を引き抜いてメンテナンスを行うことが出来る。従って、偏芯管２と他の配管との接続を解除することなく、自封装置１０のメンテナンスを行うことが出来る。 Further, in the drainage pipe 1 in the present embodiment, since the inspection port 6 is provided in the eccentric tube 2, maintenance can be performed by pulling out the inspection plug 20 from the inspection port 6. Accordingly, the self-sealing device 10 can be maintained without releasing the connection between the eccentric tube 2 and other piping.

尚、本実施例においては、排水配管１を横管として使用しているが、本発明は縦管・横管兼用管であり、本実施例の様に横管としての使用に限られる訳ではなく、縦管として配置使用しても可能であり、何ら問題はない。本発明を縦管として使用する際は、偏芯管２の上流部３を上方へ向け、上流側配管と接続するだけでよい。従って、本発明によれば、内部の構造を組み替え等変化させることなく縦管・横管として接続可能であり、また、縦管・横管において、同一の自封装置を使用することができ、且つ従来よりも排水性能の良い排水配管を提供することが出来る。 In this embodiment, the drain pipe 1 is used as a horizontal pipe. However, the present invention is a vertical pipe / horizontal pipe combined pipe, and is not limited to use as a horizontal pipe as in this embodiment. There is no problem even if it is arranged and used as a vertical tube. When the present invention is used as a vertical pipe, the upstream portion 3 of the eccentric pipe 2 may be directed upward and connected to the upstream pipe. Therefore, according to the present invention, it can be connected as a vertical tube / horizontal tube without changing the internal structure, etc., and the same self-sealing device can be used in the vertical tube / horizontal tube, and It is possible to provide a drainage pipe with better drainage performance than before.

直管部分に傾斜して自封装置を設けた場合、図３に記載の排水配管のように、自封装置を固定する為の突起が管内に必要であるが、該突起により上流側の配管と自封装置の流入口の間に段差が生じてしまい、残留排水が増加する。しかし、本願発明においては自封装置１０を固定する部分が当接壁７に隠れ、上流部３と流路形成部２３との境を面一にすることが可能である。 When a self-sealing device is provided at an angle to the straight pipe portion, a projection for fixing the self-sealing device is required in the pipe as in the drainage pipe shown in FIG. A step is generated between the inlets of the apparatus, and the residual drainage increases. However, in the present invention, the portion for fixing the self-sealing device 10 is hidden by the abutting wall 7, and the boundary between the upstream portion 3 and the flow path forming portion 23 can be flush.

尚、本実施例において、自封装置１０は流出口１２の当接面を上下に向けて配置してあるが、本発明によれば該方向に向けて設置される場合に限られる訳ではなく、当接面を水平に向けて配置することも可能である。 In the present embodiment, the self-sealing device 10 is arranged with the contact surface of the outflow port 12 facing up and down, but according to the present invention, the self-sealing device 10 is not limited to being installed in this direction. It is also possible to arrange the contact surface horizontally.

また、本実施例においては、自封装置１０は非封水式排水トラップとして、単体で設置使用したが、異臭及び排水などの逆流を防ぐ逆流防止弁として、Ｕトラップや椀トラップ等の封水式排水トラップと併用して設置しても良い。 Further, in this embodiment, the self-sealing device 10 is installed and used as a non-sealing drain trap, but as a back flow prevention valve for preventing a back flow such as a strange odor and drainage, a sealed type such as a U trap or a trap. You may install together with a drain trap.

１排水配管
２偏芯管
３上流部
４偏芯部
５下流部
６点検口
７当接壁
１０自封装置
１１流入口
１２流出口
２０点検栓
２１取り出し部
２２保持部
２３流路形成部
２４リング
２６パッキン
２７パッキン
３０配管
４０配管
Ｗ閉塞解除ライン DESCRIPTION OF SYMBOLS 1 Drain pipe 2 Eccentric pipe 3 Upstream part 4 Eccentric part 5 Downstream part 6 Inspection port 7 Contact wall 10 Self-sealing device 11 Inlet 12 Outlet 20 Inspection plug 21 Extraction part 22 Holding part 23 Flow path formation part 24 Ring 26 Packing 27 Packing 30 Piping 40 Piping W Block release line

Claims

In drainage pipes that treat drainage from drainage equipment,
The drainage pipe is equipped with a self-sealing device having an inlet and an outlet,
The self-sealing device is made of a material having flexibility in a substantially cylindrical shape,
The self-sealing device is configured to open the outlet only when pressure from the inside occurs, and maintain a closed state against pressure from the outside,
The drainage pipe has an inspection port at a place where the self-sealing device is held,
In the inspection port, an inspection plug having a holding part for holding the self-sealing device is arranged,
The self-sealing device held by the inspection plug is inserted from the inspection port,
A drainage pipe characterized in that the self-sealing device is inclined with respect to the axis of the drainage pipe, and the inlet of the self-sealing device is held higher in the vertical direction than the outlet .

The drainage pipe according to claim 1, wherein the drainage pipe is a dual-purpose pipe that can be used as a vertical pipe or a horizontal pipe .

In drainage pipes that treat drainage from drainage equipment,
The drainage pipe has an upstream part, an eccentric part, and a downstream part,
In the eccentric part, the axes of the upstream part and the downstream part are shifted,
The drainage pipe according to claim 1 or 2, wherein the self-sealing device is disposed in the eccentric portion .

The self-sealing device has an inlet at one end and an outlet at the opposite end, forms an inclined surface in a part of the cylinder, and forms an outlet that closes the cylinder by contacting the inner surfaces. And
While elastically deforming against the pressure of a fluid such as gas, liquid, foam, etc. that flows from the inlet to the outlet, the inside of the cylindrical body is opened and the fluid is allowed to pass through.
4. The self-sealing device according to claim 1, wherein the self-sealing device maintains a closed state with respect to a pressure of a fluid to flow from the outlet to the inlet and prevents passage of the fluid. The drainage pipe described in 1 .