JP2970649B2 - Drain pipe fitting - Google Patents
Drain pipe fittingInfo
- Publication number
- JP2970649B2 JP2970649B2 JP11613198A JP11613198A JP2970649B2 JP 2970649 B2 JP2970649 B2 JP 2970649B2 JP 11613198 A JP11613198 A JP 11613198A JP 11613198 A JP11613198 A JP 11613198A JP 2970649 B2 JP2970649 B2 JP 2970649B2
- Authority
- JP
- Japan
- Prior art keywords
- main body
- drainage
- branch pipe
- pipe joint
- joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Sink And Installation For Waste Water (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、低層、中層あるいは高
層建造物の排水立管を接続する排水管継手に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage pipe joint for connecting a drainage riser of a low-rise, middle-rise or high-rise building.
【０００２】[0002]
【従来の技術】一般に、排水器具には、排水管内の下水
臭気（悪臭、下水有害ガス）や害虫を室内に侵入させな
いため、図７の（Ａ）に示すように、各種器具トラップ
２の設置が義務づけられている。しかしながら、立管排
水時に、排水立管３内に大きな負圧、正圧の空気圧力変
動が生じると、負圧階では、図７の（Ｂ）にしめすよう
に、器具トラップ封水が吸出し作用により引き込まれて
「ゴボゴボ騒音」を発しながら排出される。正圧階で
は、図７の（Ｃ）に示すように、「トラップ封水が跳ね
出し」器具周辺を汚すトラブルを招くことがある。ま
た、吸出しや跳ね出しで封水２が切れると（完全破
封）、「室内に下水臭気および下水有害ガスが侵入す
る」トラブルに見舞われることもある。このような、立
管内の空気圧力の変動は、排水が立管内を流下する際に
大量の空気を必要とすることにより起こる。空気吸込口
として、図８に示すように、排水立管の上部に伸頂通気
管４、頂部にベントキャップ（吸気口）５（図８参照）
が設けられる。しかしながら、頂部ベントキャップ５か
ら距離のある中層階の排水管内では、空気の補給が流下
水に遮られて不足気味になるため、そこに負圧が発生す
る（図７の（Ｂ）参照）。また、立管を流下してきた大
量の空気は、スムースに屋外の会所桝６へ流下水ととも
に吐き出さなければならないが、排水立管３と会所桝６
との間の横主管８内での流れがスムースでないと、そこ
に正圧が生じてこれが下層階の器具トラップ部に跳ね返
る（図７の（Ｃ）参照）。2. Description of the Related Art In general, in order to prevent sewage odor (odor, sewage harmful gas) and pests in a drain pipe from entering a room, various equipment traps 2 are installed as shown in FIG. Is required. However, when large negative pressure and positive pressure air pressure fluctuations occur in the drainage stack 3 at the time of stacking drainage, as shown in FIG. , And is emitted while emitting "burdock noise". On the positive pressure floor, as shown in FIG. 7 (C), there is a case where a problem that the area surrounding the appliance is soiled due to "trap water splashing out" is caused. Further, if the sealed water 2 is cut off by suction or splashing (completely sealed), a problem may occur that “sewage odor and sewage harmful gas enter the room”. Such fluctuations in the air pressure in the vertical pipe occur because the drainage requires a large amount of air when flowing down the vertical pipe. As shown in FIG. 8, as an air suction port, as shown in FIG. 8, a top ventilation pipe 4 is provided above the drainage riser, and a vent cap (intake port) 5 is provided at the top (see FIG. 8).
Is provided. However, in the drainage pipe on the middle floor located at a distance from the top vent cap 5, the supply of air is interrupted by the flowing water, and the air supply tends to be short, so a negative pressure is generated there (see FIG. 7B). In addition, a large amount of air that has flowed down the standing pipe must be discharged smoothly to the outdoor meeting place tub 6 together with the drainage water.
If the flow in the horizontal main pipe 8 is not smooth, a positive pressure is generated there and this rebounds to the instrument trap section on the lower floor (see FIG. 7C).
【０００３】このようなトラブルを防ぐためには、管内
の空気圧力を一定限度内に保つ必要があり、このような
要求にこたえて、従来、立管内で排水を継手拡管部に沿
って流下させるか又は旋回させることによって、中心部
に空気コアを作り、逃し通気立管７（図８参照）がなく
ても伸頂通気管４と排水立管３で多くの流量を流せる機
能と、立管と複数の排水枝管を結合する多方向継手機能
を持った特殊排水集合管継手が提案されている。このよ
うな排水集合管（単管式排水用立管）システムを配管す
るために用いられる特殊排水集合管継手１０は、図９に
示すように、本体９が球形状に形成されている。この継
手本体９は、縦方向に配置されるとともに、上下に流入
口１１と排出口１２とを、また、横方向に図示しない枝
管が接続される枝管受口部１３をそれぞれ有している。
枝管受口部１３はその開口部内口径開口面の最上部１４
が、図９に示すように、球形状本体９の上端に接続さ
れ、排水を本体９の球形内面に導くようになっている。
また、立管内流下水を旋回させる特殊集合管継手は、図
１０に示すように、本体１５が円筒状に形成されてい
る。In order to prevent such troubles, it is necessary to keep the air pressure in the pipe within a certain limit. In response to such a demand, it has been conventionally required to drain water in a standing pipe along a joint expansion section. Or, by turning, an air core is formed in the center part, and a function of allowing a large flow rate to flow through the rising ventilation pipe 4 and the drainage rising pipe 3 without the escape ventilation rising pipe 7 (see FIG. 8). A special drain collecting pipe joint having a multidirectional joint function for connecting a plurality of drain branch pipes has been proposed. As shown in FIG. 9, a main body 9 of a special drainage pipe joint 10 used for piping such a drainage pipe (single-pipe drainage standing pipe) system is formed in a spherical shape. The joint body 9 is vertically arranged, has an inlet 11 and an outlet 12 at the top and bottom, and has a branch pipe receiving part 13 to which a branch pipe (not shown) is connected in the horizontal direction. I have.
The branch pipe receiving portion 13 is the uppermost portion 14 of the inner diameter opening surface of the opening.
However, as shown in FIG. 9, it is connected to the upper end of the spherical main body 9 so as to guide drainage to the spherical inner surface of the main body 9.
As shown in FIG. 10, a special collecting pipe joint for swirling sewage flowing in a standing pipe has a main body 15 formed in a cylindrical shape.
【０００４】[0004]
【発明が解決しようとする課題】一般に、内部が曲面に
形成された排水管継手では、本体に導かれた排水が曲面
に沿って流れる量が多いほど排水流下時の空気をスムー
スに下方に送ることができ、負圧性能を向上させること
ができる。ところが、上記従来の排水管継手では、本体
９の上部に開口した枝管受口部１３から排水を継手内に
導くようになっているため、本体内部に導入され本体内
面に沿って流れる排水は、球形内面の横方向の最大径部
位Ｄmax の空隙が極めて狭くなるため負圧力の性能が劣
る。かかる構成の旋回流排水管継手では、例えば、高発
泡洗剤が含まれる排水等の場合、継手内部で流下洗剤排
水が攪拌されると、立管内で２次発泡が多量に発生し、
最下部の横主管８が閉塞されて大きな正圧力となって、
低階層部において各種のトラップのハネ出し作用による
破封現象が生じるという問題がある。さらに、破封され
た各種器具トラップから、泡が室内に侵入する現象が生
じることもある。また、かかる問題を解決するため、継
手や立管の径を大きくすると、継手や立管自体が重量
化、大型化してしまいコストアップを招くという問題が
ある。Generally, in a drain joint having a curved inner surface, the greater the amount of drainage guided to the main body flowing along the curved surface, the more smoothly the air at the time of drainage flows downward. And negative pressure performance can be improved. However, in the above-mentioned conventional drain pipe joint, since the drainage is guided into the joint from the branch pipe receiving portion 13 opened at the upper part of the main body 9, the drainage introduced into the main body and flowing along the inner surface of the main body is not discharged. On the other hand, the space at the maximum diameter portion Dmax in the lateral direction of the spherical inner surface is extremely narrow, so that the negative pressure performance is inferior. In the swirling flow drain pipe joint having such a configuration, for example, in the case of drainage containing a high foaming detergent, when the falling detergent drainage is stirred inside the joint, a large amount of secondary foaming occurs in the vertical pipe,
The lowermost horizontal main pipe 8 is closed and becomes a large positive pressure,
There is a problem that a breakage phenomenon occurs due to an action of dispensing various traps in a lower layer portion. Further, a phenomenon in which bubbles enter the room from various opened instrument traps may occur. In addition, if the diameter of the joint or the standpipe is increased in order to solve such a problem, there is a problem that the joint or the standpipe itself becomes heavy and large, resulting in an increase in cost.
【０００５】本発明は上記欠点を除くためになされたも
ので、コンパクトな管口径を維持し、しかも、流下水に
洗剤等の高発泡性を有するものが含まれていても、管内
に発生する２次発泡量を抑制することができる排水管継
手を提供するものである。The present invention has been made in order to eliminate the above-mentioned drawbacks. The present invention maintains a compact pipe diameter, and generates water in a pipe even if the falling water contains a substance having high foaming properties such as a detergent. An object of the present invention is to provide a drainage pipe joint capable of suppressing the amount of secondary foaming.
【０００６】[0006]
【課題を解決するための手段】本発明に係る排水管継手
は、縦方向に配置され、上下に流入口と排出口とを、横
方向に枝管が接続される枝管受口部をそれぞれ有する本
体を備えた排水管継手において、本体を下側が窄まる卵
形状に形成するとともに、枝管受口部を、導入される排
水を卵形状部の内面に沿って流下させるべくこの卵形状
本体上端から所定の高さ下側に接続したものである。The drainage pipe joint according to the present invention is provided with a vertically arranged inlet and outlet, and a branch pipe receiving part to which a branch pipe is connected in a horizontal direction. In a drain pipe joint having a main body having a main body, the main body is formed in an oval shape having a narrowed lower side, and a branch pipe receiving portion is connected to a drain pipe to be introduced.
It is connected to a predetermined height below the upper end of the egg-shaped main body so that water flows down along the inner surface of the egg-shaped portion .
【０００７】本発明に係る排水管継手では、本体を下側
が窄まる卵形状に形成するとともに、枝管受口部を、導
入される排水を卵形状部の内面に沿って流下させるべく
卵形状本体上端から所定の高さ下側に接続したので、本
体に流下水が導入されると、本体内面の横方向最大膨張
部と流下水との間に排水流のない空気通路を確保するこ
とができる。すなわち、本体内部に導入された流水は本
体の内面形状が卵形状であるため、内面に沿ってへばり
つく挙動を示し、流下水は最大膨張部に沿って流れるの
で、たとえ、少量の２次発泡が生じても、管全体にわた
り排水流のない空気通路を確保することができる。この
ため、空気圧力変動を小さく抑えることができ、各種器
具トラップの破封現象を防ぐことができる。また、空気
通路を容易に確保することができるので、従来の排水管
継手に比較して本体の容積を小さくすることができ、小
型化を図ることができる。[0007] In the drainage pipe joint according to the present invention, the main body is formed in an oval shape whose lower side is narrowed, and the branch pipe receiving portion is connected to the guide pipe.
Since the drainage to be introduced is caused to flow down along the inner surface of the egg-shaped portion, it is connected to a predetermined height below the upper end of the egg-shaped main body. An air passage without drainage flow can be ensured between the maximum expansion part in the direction and the flowing water. In other words, the flowing water introduced into the main body has a beveled shape along the inner surface because the inner surface shape of the main body is egg-shaped, and the flowing water flows along the maximum expansion portion, so that even a small amount of secondary foaming occurs. Even if it occurs, an air passage without drainage flow can be ensured over the entire pipe. For this reason, the air pressure fluctuation can be suppressed to a small value, and it is possible to prevent the various device traps from being broken. Further, since the air passage can be easily secured, the volume of the main body can be reduced as compared with the conventional drain pipe joint, and the size can be reduced.
【０００８】また、本発明に係る排水管継手は、縦方向
に配置され、上下に流入口と排出口とを、横方向に枝管
が接続される枝管受口部をそれぞれ有する本体を備えた
排水管継手において、本体を長軸が軸心に合致する楕円
体形状に形成するとともに、枝管受口部を、導入される
排水を楕円体形状部の内面に沿って流下させるべくこの
楕円体形状本体上端から所定の高さ下側に接続したもの
である。Further, the drainage pipe joint according to the present invention has a main body which is arranged in a vertical direction, has an inlet and a drain at the top and bottom, and has a branch pipe receiving portion to which a branch pipe is connected in a horizontal direction. Drain pipe joint, the main body is formed into an elliptical shape whose major axis matches the axis, and the branch pipe receiving part is introduced.
The drain is connected to a predetermined height below the upper end of the elliptical body so that the drainage flows down along the inner surface of the elliptical body.
【０００９】本発明に係る排水管継手では、本体を長軸
が軸心に合致する楕円体形状に形成するとともに、枝管
受口部を、導入される排水を楕円体形状部の内面に沿っ
て流下させるべくこの楕円体形状本体上端から所定の高
さ下側に接続したので、本体に流下水が導入されると、
本体内面の横方向最大膨張部と流下水との間に排水流の
ない空気通路を確保することができ、流下水は最大膨張
部に沿って流れるので、たとえ、少量の２次発泡が生じ
ても、管全体にわたり排水流のない空気通路を確保する
ことができる。また、空気通路を容易に確保することが
できるので、従来の排水管継手に比較して本体の容積を
小さくすることができ、小型化を図ることができる。In the drainage pipe joint according to the present invention, the main body is formed in an elliptical shape whose major axis coincides with the axial center, and the branch pipe receiving portion is formed so that the introduced drainage extends along the inner surface of the ellipsoidal shape portion.
Since it is connected to the lower side of the predetermined height from the upper end of this ellipsoidal main body to let it flow down , when flowing water is introduced into the main body,
An air passage without drainage flow can be secured between the maximum horizontal inflation portion of the body surface and the downflow water, and the downflow water flows along the maximum inflation portion, so even if a small amount of secondary foaming occurs, Also, it is possible to secure an air passage without drainage flow over the entire pipe. Further, since the air passage can be easily secured, the volume of the main body can be reduced as compared with the conventional drain pipe joint, and the size can be reduced.
【００１０】[0010]
【発明の実施の形態】以下図面に示す実施例により本発
明を説明する。図１は本発明の第１の実施の形態に係る
排水管継手を示す縦断面図である。本実施の形態に係る
排水管継手２０は、図１に示すように、上下にそれぞれ
流入口２２と排出口２３とを有する継手本体（本体）２
１からなり、図示しない建物の床を貫通して縦方向に配
置される。継手本体２１は、横方向に枝管（図示せず）
が接続される枝管受口部２４、２４を備えている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 is a longitudinal sectional view showing a drain pipe joint according to a first embodiment of the present invention. As shown in FIG. 1, a drain pipe joint 20 according to the present embodiment has a joint body (main body) 2 having an inlet 22 and an outlet 23 at upper and lower sides, respectively.
1 and penetrate the floor of a building (not shown) and are arranged in the vertical direction. The joint main body 21 is laterally branched (not shown).
Are provided with the branch pipe receiving portions 24, 24 to which are connected.
【００１１】ところで、この継手本体２１は、図１に示
すように、下側が窄まる卵形状（鶏卵状）に形成され
る。継手本体２１は、流入口２２との接続部２２Ａから
所定の高さ下側の位置Ｈ2 で内面が最大に膨張し、この
最大膨張部２９（最大膨張径Ｄ1max）から下方にゆくに
従って徐々に窄まるようになっている。枝管受口部２４
は、開口部内口径開口面２６の最上部２７が本体内面の
最大膨張部２９より下側に位置するように継手本体２１
に設けられる。枝管受口部２４は、継手本体２１の周方
向に２か所ほぼ９０度又は１８０度離して設けられる。
この枝管受口部２４は、継手本体２１に、接続筒部２５
の中心線Ｌ1 が継手本体２１の軸心Ｃ1 とほぼ直交（１
度１０分の傾斜）するように接続される。By the way, as shown in FIG. 1, the joint body 21 is formed in an egg shape (chicken egg shape) in which the lower side is narrowed. Gradually accordance joint body 21 expands from the connection portion 22A inner surface to the maximum at a position of H 2 predetermined height lower the inlet 22, yuku from the maximum expansion portion 29 (maximum expansion diameter D1 max) below It has become constricted. Branch pipe port 24
The joint body 21 is positioned such that the uppermost portion 27 of the opening inner diameter opening surface 26 is located below the maximum expansion portion 29 on the inner surface of the body.
Is provided. The branch pipe receiving portion 24 is provided at two places in the circumferential direction of the joint body 21 at a distance of approximately 90 degrees or 180 degrees.
The branch pipe receiving portion 24 is connected to the joint main body 21 by a connecting tubular portion 25.
Center line L 1 of the joint body 21 is substantially orthogonal to the axis C 1 (1
(Inclination of 10 minutes).
【００１２】次に、上記第１の本実施の形態に係る排水
管継手２０の作用について説明する。排水管継手２０
は、流下排水が流入口２２から導入されると、曲面に形
成された接続部２２Ａからスムースに継手本体２１内に
導入される。継手本体２１内に導入された流下排水は、
継手本体２１の内面に沿って流下する。また、排水が枝
管受口部２４から継手本体２１内に導入されると、排水
は継手本体２１の内面に沿って流下する。このとき、枝
管受口部２４から導入された排水は、本体内面の最大膨
張部２９より下側を流下するため、枝管受口部２４の開
口面２６と向かい合う最大膨張部２９と流下水との間に
排水流のない空気通路が確保される。このため、たと
え、流下排水に洗剤が含まれ、少量の発泡が生じても、
排水立管全体にわたり中央に排水流の存在しない空気通
路（空気コア）を確保することができるので、排水立管
内の空気圧力変動を小さく抑えることができ、各種器具
トラップの破封現象を防ぐことができる。このように、
本実施の形態に係る排水管継手では、簡素な構成で、排
水立管の径を大径化することなくコンパクトに維持し、
しかも、各種器具トラップの破封現象を防ぐことができ
る。Next, the operation of the drain pipe joint 20 according to the first embodiment will be described. Drainage fittings 20
When the downflow wastewater is introduced from the inflow port 22, it is smoothly introduced into the joint body 21 from the connection portion 22A formed on the curved surface. Downflow drainage introduced into the joint body 21 is as follows:
It flows down along the inner surface of the joint body 21. Further, when the drainage is introduced into the joint body 21 from the branch pipe receiving portion 24, the drainage flows down along the inner surface of the joint body 21. At this time, since the drainage introduced from the branch pipe receiving portion 24 flows down below the maximum expanding portion 29 on the inner surface of the main body, the drainage water flows into the maximum expanding portion 29 facing the opening surface 26 of the branch pipe receiving portion 24. An air passage with no drainage flow is secured between them. For this reason, even if the downflow wastewater contains detergent and a small amount of foaming occurs,
Since the air passage (air core) where there is no drainage flow can be secured in the center of the entire drainage plumbing, the fluctuation of air pressure in the drainage plumbing can be suppressed to a small degree, and the trapping phenomenon of various equipment traps can be prevented. Can be. in this way,
In the drainage pipe joint according to the present embodiment, with a simple configuration, maintaining a compact without increasing the diameter of the drainage riser,
In addition, it is possible to prevent the various device traps from being broken.
【００１３】図２は本発明の第２の実施の形態を示すも
ので、この第２の実施の形態に係る排水管継手４０は、
縦方向に配置され、上下に流入口４２と排出口４３と
を、横方向に図示しない枝管が接続される枝管受口部４
４、４４をそれぞれ有する継手本体４１からなってい
る。継手本体４１は上記第１の実施の形態と同様に、卵
形状に形成される。継手本体４１は、流入口接続部４２
Ａから所定の高さ下側の位置Ｈ4 が最大膨張部４９とな
っている。FIG. 2 shows a second embodiment of the present invention. The drainage pipe joint 40 according to the second embodiment includes
A branch pipe receiving portion 4 that is vertically arranged and has an inlet 42 and an outlet 43 vertically, and a branch pipe (not shown) connected in the horizontal direction.
4 and 44, respectively. The joint main body 41 is formed in an egg shape as in the first embodiment. The joint body 41 includes an inflow port connection section 42.
A position H 4 below a predetermined height from A is the maximum expansion portion 49.
【００１４】ところで、これら枝管受口部４４、４４
は、図２に示すように、本体側の開口面４６が最大膨張
部４９に臨むように継手本体４１に接続される。すなわ
ち、枝管受口部４４は、枝管受口部４４の接続筒部４５
の中心線Ｌ4 が最大膨張部４９のなす面よりわずかに下
側に位置するように継手本体４１に接続される。このた
め、枝管受口部４４の開口部内口径開口面４６の最下部
４７から継手本体４１の下端部４１Ａまでの間は、上記
第１の実施の形態に係る排水管継手２０に比較してより
広い継手内壁面が確保されるようになっている。継手本
体４１の枝管受口部の上部４７Ａと下部４７の部位が最
大膨張部４９を芯としてほぼ均等の位置にあることによ
り立管受口部４２よりの流下水が継手内径壁面に沿って
流れかつ下部４７の本体導入点でハネることもなく、流
れよい形状となっている。By the way, these branch pipe receiving portions 44, 44
2 is connected to the joint main body 41 such that the opening surface 46 on the main body side faces the maximum expansion portion 49, as shown in FIG. That is, the branch pipe receiving portion 44 is connected to the connecting tubular portion 45 of the branch pipe receiving portion 44.
Center line L 4 of is connected to the joint body 41 so as to be positioned slightly below the plane formed of the maximum inflation portion 49. Therefore, a portion between the lowermost portion 47 of the opening inner diameter opening surface 46 of the branch pipe receiving portion 44 and the lower end portion 41A of the joint main body 41 is smaller than the drainage pipe joint 20 according to the first embodiment. A wider joint inner wall surface is ensured. Since the upper portion 47A and the lower portion 47 of the branch pipe receiving portion of the joint main body 41 are located at substantially the same position with the largest inflatable portion 49 as a center, the flowing water from the standing pipe receiving portion 42 flows along the joint inner diameter wall surface. It has a flowable shape without flowing at the point of introduction of the main body of the lower part 47, and has good flowability.
【００１５】図３は本発明の第３の実施の形態を示すも
ので、この第３の実施の形態に係る排水管継手６０は、
上記第１および第２の実施の形態と同様に、縦方向に配
置され、上下に流入口６２と排出口６３とを、横方向に
枝管受口部６４、６４をそれぞれ有する継手本体６１か
らなっている。継手本体６１は上記第１および第２の実
施の形態と同様に、卵形状に形成され、流入口接続部６
２Ａから所定の高さ下側の位置Ｈ6 が最大膨張部６９と
なっている。枝管受口部６４、６４は、本体側の開口面
６６が最大膨張部６９に臨むように継手本体４１に接続
される。FIG. 3 shows a third embodiment of the present invention. A drainage pipe joint 60 according to the third embodiment includes:
As in the first and second embodiments, the joint body 61 is disposed in the vertical direction and has an inlet 62 and an outlet 63 at the top and bottom, and has branch pipe receiving portions 64 and 64 at the top and bottom. Has become. The joint main body 61 is formed in an oval shape, similarly to the first and second embodiments, and has an inflow port connecting portion 6.
Position H 6 a predetermined height lower side is a maximum expansion portion 69 from 2A. The branch pipe receiving portions 64, 64 are connected to the joint main body 41 such that the opening surface 66 on the main body side faces the maximum expansion portion 69.
【００１６】ところで、枝管受口部６４は、図３に示す
ように、継手本体６１内に導かれる排水が継手本体６１
の内面に沿って流れやすくなるように、その中心線Ｌ6
を継手本体６１の軸心Ｃ3 と直交する方向Ｌ1 に対して
所定角度α上方に傾斜させて継手本体６１に接続するよ
うにしている。このため、枝管受口部６４からの排水は
継手本体６１の内面に沿った方向に向かった角度に導か
れるので、上記第１および第２の実施の形態と同様に、
枝管受口部６４の開口面６６と向かい合う最大膨張部６
９と流下水との間に排水流のない空気通路が確保されや
すくなる。By the way, as shown in FIG. 3, the branch pipe receiving portion 64 receives the drainage introduced into the joint main body 61.
Center line L 6 so that it can easily flow along the inner surface of
Is tilted upward by a predetermined angle α with respect to a direction L 1 orthogonal to the axis C 3 of the joint body 61 so as to be connected to the joint body 61. For this reason, the drainage from the branch pipe receiving portion 64 is guided at an angle directed in a direction along the inner surface of the joint main body 61, and thus, as in the first and second embodiments,
Maximum inflation portion 6 facing opening surface 66 of branch pipe receiving portion 64
It is easy to secure an air passage without drainage flow between the drain water 9 and the flowing water.
【００１７】なお、この第３の実施の形態に係る排水管
継手６０では、枝管受口部６４から継手本体６１内に導
かれる排水が継手本体６１の内面に沿って流れやすくな
るように、枝管受口部６４の中心線Ｌ6 を継手本体６１
の軸心Ｃ3 と直交する方向Ｌ1 に対して上方に傾斜させ
て接続しているが、これに限られるものではなく、排水
を本体内面に沿った角度に導くのであれば、中心線Ｌ6
を上記直交方向Ｌ1 に対して横方向に傾斜させてもよい
し、偏心させるようにしてよい。In the drainage pipe joint 60 according to the third embodiment, the drainage introduced into the joint main body 61 from the branch pipe receiving portion 64 is made to flow easily along the inner surface of the joint main body 61. The center line L 6 of the branch pipe receiving portion 64 is connected to the joint body 61.
If the is connected by inclined upward with respect to the direction L 1 perpendicular to the axis C 3, it is not limited thereto, draining than lead to angle along the body inner surface, the center line L 6
The may be inclined transversely to the orthogonal direction L 1, it may be so as to eccentrically.
【００１８】図４および図５はそれぞれ本発明の第４、
第５の実施の形態を示すもので、第４の実施の形態に係
る排水管継手１４０および第５の実施の形態に係る排水
管継手１６０は、いずれも、継手本体１４１、１６１の
内部に、流下水を旋回させる旋回羽根１４２、１６２が
設けられる。旋回羽根１４２、１６２は、鈍角が曲線状
に形成された三角形状のプレート片からなり、本体内面
の曲面に沿って、卵形状の継手本体１４１、１６１の軸
心Ｃ4 、Ｃ5 に向かって突出するように、かつ、縦軸方
向に対して所定角度傾斜させて設けられる。FIGS. 4 and 5 show a fourth embodiment of the present invention, respectively.
This shows the fifth embodiment, and the drainage pipe joint 140 according to the fourth embodiment and the drainage pipe joint 160 according to the fifth embodiment are both provided inside the joint bodies 141 and 161. Swirl vanes 142 and 162 for swirling the flowing water are provided. The swirling blades 142 and 162 are formed of triangular plate pieces having obtuse angles formed in a curved shape, and along the curved surface of the inner surface of the main body toward the axes C 4 and C 5 of the egg-shaped joint main bodies 141 and 161. It is provided so as to protrude and inclined at a predetermined angle with respect to the longitudinal axis direction.
【００１９】ところで、図４に示す排水管継手１４０で
は、上記第２、第３の実施の形態と同様に、枝管受口部
１４４、１４４が本体側の開口面１４６を最大膨張部１
４９に臨ませて継手本体１４１に接続される。そして、
旋回羽根１４２の上端１４２Ａを、枝管受口部１４４の
開口部内口径開口面１４６の最下部１４７とほぼ同一の
高さに位置させるようにしている。係る排水管継手１４
０では、継手本体１４１内部に旋回羽根１４２を設けた
ので、継手本体１４１内に導入された流下排水は、旋回
羽根１４２に当って、継手本体１４１の内面に沿って旋
回流となって流下する。このため、継手本体１４１内に
排水流のない空気通路を確保しやすくなる。従って、た
とえ、流下排水に洗剤が含まれ、少量の２次発泡が生じ
ても、排水立管全体にわたり中央に排水流の存在しない
空気通路（空気コア）を確保することができ、排水立管
内の空気圧力変動を小さく抑えることができる。By the way, in the drain pipe joint 140 shown in FIG. 4, the branch pipe receiving portions 144 and 144 are connected to the opening surface 146 on the main body side in the same manner as in the second and third embodiments.
49 and is connected to the joint body 141. And
The upper end 142A of the swirl vane 142 is positioned at substantially the same height as the lowermost portion 147 of the opening inner diameter opening surface 146 of the branch pipe receiving portion 144. Such drainage pipe joint 14
In the case of 0, since the swirl vanes 142 are provided inside the joint body 141, the downflow drainage introduced into the joint body 141 hits the swirl vanes 142 and flows down as a swirl flow along the inner surface of the joint body 141. . For this reason, it becomes easy to secure an air passage without drainage flow in the joint body 141. Therefore, even if the drainage wastewater contains a detergent and a small amount of secondary foaming occurs, it is possible to secure an air passage (air core) where there is no drainage flow in the center of the entire drainage plumbing, and Air pressure fluctuations can be kept small.
【００２０】また、図５に示す排水管継手１６０は、上
記第２ないし第４の実施の形態と同様に、枝管受口部１
６４、１６４を本体側の開口面１６６が最大膨張部１６
９に臨むように継手本体１６１に接続している。そし
て、この排水管継手１６０では、旋回羽根１６２の上端
１６２Ａを枝管受口部１６４の開口部内口径開口面１６
６の最下部１６７より所定の高さＨ7 分下側に位置させ
ている。さらに、この排水管継手１６０では、図５に示
すように、上記第３の実施の形態と同様に、枝管受口部
１６４を、排水が旋回羽根１６２に当たって旋回される
ように、その中心線Ｌ8 を継手本体１６１の軸心Ｃ5 と
直交する方向Ｌ1 に対して所定角度β上方に傾斜させて
継手本体１６１に接続するようにしている。このため、
枝管受口部１６４から継手本体１６１内に導かれる排水
は旋回羽根１６２に乗って旋回しやすくなるので、旋回
性能を向上させることができ、旋回羽根１６２を小型化
することができる。The drain pipe joint 160 shown in FIG. 5 has a branch pipe receiving portion 1 similar to the second to fourth embodiments.
The opening surface 166 on the main body side is the largest inflatable portion 16.
9 is connected to the joint body 161. In the drainage pipe joint 160, the upper end 162 </ b> A of the swirling blade 162 is connected to the inner diameter opening surface 16 of the opening of the branch pipe receiving portion 164.
6 is located below the lowermost part 167 by a predetermined height H 7 . Further, as shown in FIG. 5, in the drainage pipe joint 160, similarly to the third embodiment, a center line of the branch pipe receiving portion 164 is formed so that the drainage can be swirled by hitting the swirl vanes 162. L 8 is inclined upward by a predetermined angle β with respect to a direction L 1 orthogonal to the axis C 5 of the joint main body 161 to be connected to the joint main body 161. For this reason,
Since the drainage guided from the branch pipe receiving portion 164 into the joint body 161 easily turns on the swirling blade 162, the turning performance can be improved, and the size of the turning blade 162 can be reduced.
【００２１】なお、この第５の実施の形態に係る排水管
継手１６０では、枝管受口部１６４からの排水を旋回さ
せやすくするため、枝管受口部１６４の中心線Ｌ8 を旋
回羽根１６２に向かってゆく方向に設定し、枝管受口部
１６４の中心線Ｌ8 を直交方向Ｌ1 に対して上方に傾斜
させて接続しているが、これに限られるものではなく、
図６に示すように、一方の枝管受口部１７４Ａの中心線
Ｌ9 を上記直交方向Ｌ1 に対して旋回羽根１７２の方向
に向けて横方向に傾斜させ、他方の枝管受口部１７４Ｂ
の中心線Ｌ10を上記直交方向Ｌ1 に対して継手本体１７
１の内面に沿った方向に向かって横方向に傾斜させても
よいし、偏心させるようにしてよい（偏心した中心線Ｌ
11参照）。その場合、旋回継手本体１７１に導かれる排
水は旋回羽根に乗りやすくなるため、羽根形状が小型化
され、旋回作用による負圧力性能の向上が図られ、又、
最大膨張部との間に空気通路が広く確保されるために洗
剤排水時の正圧力性能が確保される。また、上記実施の
形態では、継手本体の形状を卵形状としているがこれに
限られるものではなく、枝管受口部から流入する排水と
本体の最大膨出部との間に空気通路が確保される形状を
備えていればよく、楕円体形状であってもよい。In the drainage pipe joint 160 according to the fifth embodiment, the center line L 8 of the branch pipe receiving portion 164 is connected to the swirl vane in order to facilitate the drainage from the branch pipe receiving portion 164. set in a direction Yuku towards 162, but are connected by inclined upward to the center line L 8 of the lateral pipe socket portion 164 in the cross direction L 1, is not limited thereto,
As shown in FIG. 6, the center line L 9 of one of the lateral pipe socket portion 174A is inclined laterally in the direction of the swirl vane 172 with respect to the orthogonal direction L 1, the other branch pipe socket portion 174B
Joint body 17 to the center line L 10 with respect to the orthogonal direction L 1
1 may be inclined in the lateral direction toward the direction along the inner surface or may be eccentric (the eccentric center line L
11 ). In this case, since the drainage guided to the swivel joint body 171 easily gets on the swirling blade, the blade shape is reduced, and the negative pressure performance by the swirling action is improved.
Since a wide air passage is provided between the air passage and the maximum inflation portion, positive pressure performance at the time of detergent drainage is ensured. Further, in the above embodiment, the shape of the joint body is an egg shape, but the shape is not limited to this, and an air passage is secured between the drainage flowing from the branch pipe receiving portion and the largest bulging portion of the body. The shape may be an ellipsoidal shape as long as it has a shape to be formed.
【００２２】[0022]
【発明の効果】以上述べたように本発明に係る排水管継
手によれば、本体を下側が窄まる卵形状に形成するとと
もに、枝管受口部を、導入される排水を卵形状部の内面
に沿って流下させるべくこの卵形状本体上端から所定の
高さ下側に接続したことにより、本体に流下水が導入さ
れた際、本体内面の横方向最大膨張部と流下水との間に
排水流のない空気通路を又は排水流の混入の少ない空気
通路を確保することができるので、排水立管内の空気圧
力変動を抑制することができ、良好な各種器具トラップ
性能を確保することができる。また、排水立管の管口径
を小径に保つことができるので、排水管継手の小型化を
はかることができ、コストダウンを図ることができる。
さらに、排水管継手の小型化により建物の使用空間を増
大させることができる。As described above, according to the drainage pipe joint according to the present invention, the main body is formed in an oval shape with the lower side narrowed, and the branch pipe receiving portion is provided with the drainage to be introduced into the oval shape. Inside
Connected to a predetermined height below the upper end of the egg-shaped main body so that it flows down along , the drainage water is introduced between the maximum lateral expansion part of the inner surface of the main body and the flow-down water when the flow-down water is introduced into the main body. Since an air passage having no flow or an air passage with less mixing of the drainage flow can be ensured, fluctuations in air pressure in the drainage riser can be suppressed, and good device trapping performance can be ensured. Also, since the diameter of the drainage pipe can be kept small, the size of the drainage pipe joint can be reduced, and the cost can be reduced.
Further, the space used in the building can be increased by reducing the size of the drainage pipe joint.
【００２３】また、本発明に係る排水管継手によれば、
本体を長軸が軸心に合致する楕円体形状に形成するとと
もに、枝管受口部を、導入される排水を楕円体形状部の
内面に沿って流下させるべくこの楕円体形状本体上端か
ら所定の高さ下側に接続したことにより、本体に流下水
が導入された際、本体内面の横方向最大膨張部と流下水
との間に排水流のない空気通路を確保することができる
ので、排水立管内の空気圧力変動を抑制することがで
き、良好な各種器具トラップ性能を確保することができ
る。According to the drainage pipe joint according to the present invention,
The main body is formed in an ellipsoidal shape whose major axis coincides with the axis, and the branch pipe receiving part is provided with
By connecting to the lower side of the elliptical body at a predetermined height from the upper end to flow down along the inner surface, when the flowing water is introduced into the main body, the space between the maximum lateral expansion portion of the inner surface of the main body and the flowing water is reduced. Since an air passage without drainage flow can be ensured, fluctuations in air pressure in the drainage riser can be suppressed, and good device trap performance can be ensured.
【図１】本発明の第１の実施の形態に係る排水管継手を
示す縦断面図である。FIG. 1 is a longitudinal sectional view showing a drain pipe joint according to a first embodiment of the present invention.
【図２】本発明の第２の実施の形態に係る排水管継手を
示す縦断面図である。FIG. 2 is a longitudinal sectional view showing a drain pipe joint according to a second embodiment of the present invention.
【図３】本発明の第３の実施の形態に係る排水管継手を
示す縦断面図である。FIG. 3 is a longitudinal sectional view showing a drain pipe joint according to a third embodiment of the present invention.
【図４】本発明の第４の実施の形態に係る排水管継手を
示す縦断面図である。FIG. 4 is a longitudinal sectional view showing a drain pipe joint according to a fourth embodiment of the present invention.
【図５】本発明の第５の実施の形態に係る排水管継手を
示す縦断面図である。FIG. 5 is a longitudinal sectional view showing a drain pipe joint according to a fifth embodiment of the present invention.
【図６】図５の変形例に係る排水管継手を示す縦断面図
である。FIG. 6 is a longitudinal sectional view showing a drainage pipe joint according to a modification of FIG. 5;
【図７】（Ａ）は排水器具におけるトラップ封水の通常
の状態を示す説明図、（Ｂ）は排水立管側が負圧になっ
た際のトラップの破封状態を示す説明図、（Ｃ）は排水
立管側が正圧になった際のトラップの破封状態を示す説
明図である。FIG. 7 (A) is an explanatory view showing a normal state of trap water sealing in a drainage device, FIG. 7 (B) is an explanatory view showing a trap opening state when a negative pressure is applied to a drainage riser side, and FIG. () Is an explanatory diagram showing a trapped state of the trap when the pressure of the drainage riser becomes positive.
【図８】建物の排水系統と管内空気圧の発生傾向を示す
説明図である。FIG. 8 is an explanatory diagram showing the drainage system of a building and the tendency of air pressure in a pipe to occur.
【図９】従来の排水管継手を示す縦断面図である。FIG. 9 is a longitudinal sectional view showing a conventional drain pipe joint.
【図１０】従来の排水管継手を示す縦断面図である。FIG. 10 is a longitudinal sectional view showing a conventional drain pipe joint.
２０ 排水管継手 ２１ 継手本体（本体） ２２ 流入口 ２２Ａ 接続部（卵形状部上端） ２３ 排出口 ２４ 枝管受口部 （Ｈ1 −Ｈ2 ） 所定の高さReference Signs List 20 drainage pipe joint 21 joint body (main body) 22 inflow port 22A connection part (upper end of egg-shaped part) 23 discharge port 24 branch pipe reception part (H 1 -H 2 ) predetermined height
Claims (8)
口とを、横方向に枝管が接続される枝管受口部をそれぞ
れ有する本体を備えた排水管継手において、本体を下側
が窄まる卵形状に形成するとともに、枝管受口部を、導
入される排水を卵形状部の内面に沿って流下させるべく
この卵形状本体上端から所定の高さ下側に接続したこと
を特徴とする排水管継手。1. A drain pipe joint having a main body having a main body which is vertically arranged and has an inlet and a discharge port at the top and bottom, and a branch pipe receiving portion to which a branch pipe is connected in the horizontal direction. and forming an egg shaped side is narrowed, the branch pipe receiving opening section, guide
A drain pipe joint which is connected to a predetermined height below the upper end of the egg-shaped main body in order to cause the drainage to flow down along the inner surface of the egg-shaped portion .
張部より下側に接続したことを特徴とする請求項１に記
載の排水管継手。2. The drainage pipe joint according to claim 1, wherein the branch pipe receiving portion is connected to a lower side of the maximum expansion portion in the lateral direction of the inner surface of the main body.
張部に対応する部位に接続したことを特徴とする請求項
１に記載の排水管継手。3. The drain pipe joint according to claim 1, wherein the branch pipe receiving portion is connected to a portion corresponding to a maximum expansion portion in a lateral direction of the inner surface of the main body.
回羽根を設けたことを特徴とする請求項３に記載の排水
管継手。4. The drainage pipe joint according to claim 3, wherein a downflow swirl vane for swirling downflow water is provided inside the main body.
口部内口径開口面の最下部とほぼ同一または上記最下部
より所定の高さ下側に位置させたことを特徴とする請求
項４に記載の排水管継手。5. The method according to claim 5, wherein an upper end of the downflow swirl vane is located substantially at the same level as a lowermost portion of the inner diameter opening surface of the branch pipe receiving portion or at a predetermined height below the lowermost portion. Item 5. A drainage pipe joint according to Item 4.
直交する方向に対して偏心させて本体に接続されること
を特徴とする請求項５に記載の排水管継手。6. The drain pipe joint according to claim 5, wherein the branch pipe receiving portion is connected to the main body with its center line eccentric to a direction orthogonal to the axis of the main body.
直交する方向に対して傾斜させて本体に接続されること
を特徴とする請求項５に記載の排水管継手。7. The drain pipe joint according to claim 5, wherein the branch pipe receiving portion is connected to the main body with its center line inclined with respect to a direction orthogonal to the axis of the main body.
口とを、横方向に枝管が接続される枝管受口部をそれぞ
れ有する本体を備えた排水管継手において、本体を長軸
が軸心に合致する楕円体形状に形成するとともに、枝管
受口部を、導入される排水を楕円体形状部の内面に沿っ
て流下させるべくこの楕円体形状本体上端から所定の高
さ下側に接続したことを特徴とする排水管継手。8. A drain pipe joint comprising a main body having a longitudinally arranged inlet and outlet at the top and bottom, and a branch pipe receiving portion to which a lateral branch is connected in the horizontal direction, wherein the main body has a long length. The shaft is formed into an ellipsoidal shape that matches the axis, and the branch pipe inlet is placed along the inner surface of the ellipsoidal shape to drain the introduced drainage.
A drain pipe joint which is connected to a predetermined height below the upper end of the ellipsoidal main body so as to flow down .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11613198A JP2970649B2 (en) | 1998-04-10 | 1998-04-10 | Drain pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11613198A JP2970649B2 (en) | 1998-04-10 | 1998-04-10 | Drain pipe fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11293730A JPH11293730A (en) | 1999-10-26 |
| JP2970649B2 true JP2970649B2 (en) | 1999-11-02 |
Family
ID=14679493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11613198A Expired - Fee Related JP2970649B2 (en) | 1998-04-10 | 1998-04-10 | Drain pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2970649B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002121787A (en) * | 2000-10-17 | 2002-04-26 | Bridgestone Corp | Drain system in building |
| JP5183616B2 (en) * | 2009-12-17 | 2013-04-17 | 株式会社クボタ | Pipe for drainage |
| CN105735456B (en) * | 2016-02-26 | 2018-05-08 | 上海深海宏添建材有限公司 | A kind of used in construction drainage cyclone |
-
1998
- 1998-04-10 JP JP11613198A patent/JP2970649B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11293730A (en) | 1999-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |