JP5201963B2

JP5201963B2 - Confluence

Info

Publication number: JP5201963B2
Application number: JP2007310681A
Authority: JP
Inventors: 毅博小林; 教通土岸
Original assignee: Kubota CI Co Ltd
Current assignee: Kubota CI Co Ltd
Priority date: 2007-11-30
Filing date: 2007-11-30
Publication date: 2013-06-05
Anticipated expiration: 2027-11-30
Also published as: JP2009133131A

Description

この発明は合流桝に関し、特にたとえば、複数の流入部を有する桝本体を備える、合流桝に関する。 The present invention relates to a merging rod, and more particularly to a merging rod including a ridge body having a plurality of inflow portions.

従来、合流桝は、充分に減速した排水が流入する屋外での使用を想定しているため、対面の流入部への越流を考慮した形状となっていない。しかし、たとえば屋内の床下に合流桝を設置した場合には、勢いのある排水が合流桝内に流入する可能性があり、その排水が対面の流入部へ越流してしまう恐れがある。 Conventionally, the confluence is assumed to be used outdoors where drained water that has been sufficiently slowed down, so it does not have a shape that takes into account the overflow to the inflow portion of the meeting. However, for example, when a confluence is installed under the floor of an indoor space, there is a possibility that vigorous wastewater flows into the confluence, and the wastewater may overflow to the inflow portion facing to the surface.

このような排水の越流を防止するために、たとえば特許文献１の技術では、桝本体内に仕切体を設けている。この仕切体は、上下方向の放射状仕切板と、隣同士の仕切板に亘る逆Ｌ字状天板とを含み、複数の流入口の桝本体内の開口側を区画して、排水をガイドしている。
特許第３７９１７７０号公報 [Ｅ０３Ｆ５／１０] In order to prevent such overflow of the drainage, for example, in the technique of Patent Document 1, a partition is provided in the main body. This partition includes a radial partition plate in the vertical direction and an inverted L-shaped top plate extending between adjacent partition plates, and partitions the opening side in the main body of the plurality of inlets to guide drainage. Yes.
Japanese Patent No. 3791770 [E03F 5/10]

桝本体内に流入する排水は、桝本体側壁の開口縁から中心方向に向かって略水平方向に飛び出し、重力の影響を受けて、次第にその流れ方向を鉛直下向きへと変えていく。しかし、特許文献１の技術では、桝本体内に仕切体を設けるので、桝本体側壁の開口縁と仕切体との距離が短くなっており、勢いのある排水が桝本体内に流入した場合には、排水は、その流れ方向が水平方向に近いまま仕切体に衝突することになる。流れ方向が水平方向に近い状態で仕切体に衝突した排水は、跳ね返って桝本体内から円滑に排出されなくなり、桝本体内を閉塞してしまう恐れがある。桝本体内が満水状態になると、桝本体内に負圧が発生し、合流桝の上流側に設けられる排水トラップを破封してしまう。 The waste water flowing into the cocoon body jumps out in the substantially horizontal direction from the opening edge of the cocoon body side wall toward the center, and gradually changes its flow direction vertically downward under the influence of gravity. However, in the technique of Patent Document 1, since the partition body is provided in the cocoon body, the distance between the opening edge of the heel body side wall and the partition body is shortened, and when vigorous drainage flows into the cocoon body, The drainage will collide with the partition while its flow direction is close to the horizontal direction. Drainage that collides with the partition in a state where the flow direction is close to the horizontal direction will bounce off and will not be smoothly discharged from the inside of the cocoon body, which may block the inside of the cocoon body. When the inside of the cocoon body is full of water, negative pressure is generated in the cocoon body, and the drain trap provided on the upstream side of the joining basin is broken.

それゆえに、この発明の主たる目的は、新規な、合流桝を提供することである。 Therefore, the main object of the present invention is to provide a novel confluence.

この発明の他の目的は、桝本体内に流入した排水を円滑に排出できる、合流桝を提供することである。 Another object of the present invention is to provide a merging soot that can smoothly drain the waste water that has flowed into the soot body.

この発明は、上記の課題を解決するために、以下の構成を採用した。なお、括弧内の参照符号および補足説明などは、本発明の理解を助けるために後述する実施の形態との対応関係を示したものであって、この発明を何ら限定するものではない。 The present invention employs the following configuration in order to solve the above problems. Note that reference numerals in parentheses and supplementary explanations indicate correspondence with embodiments described later in order to help understanding of the present invention, and do not limit the present invention.

第１の発明は、排水枝管から排水が流入する複数の流入部と、排水主管へ排水を流出する流出部とを有する桝本体を備える合流桝であって、流入部は、桝本体の側壁部から外方に向かって突出するように形成される短筒部、および短筒部の先端に形成され、排水枝管が接続される管接続部を含み、短筒部の管接続部側の開口縁の径を、排水枝管の内径と同じまたはほぼ同じ大きさにして、管接続部に接続した排水枝管の内面と短筒部の内面とが段差なく接続されるようにするとともに、短筒部の側壁部側の開口縁最下部が管接続部側の開口縁最下部より低い位置になるように高低差をつけた、合流桝である。 The first invention includes a plurality of inlet for wastewater flows from the drain branch pipe, met confluence basins comprise Masumoto body having an outlet portion for discharging the waste water into the drainage main pipe, the inlet section, the side wall of Masumoto body A short cylindrical portion formed so as to protrude outward from the portion , and a pipe connecting portion formed at the tip of the short cylindrical portion , to which a drainage branch pipe is connected, on the pipe connecting portion side of the short cylindrical portion The diameter of the opening edge is the same as or substantially the same as the inner diameter of the drainage branch pipe so that the inner surface of the drainage branch pipe connected to the pipe connection portion and the inner surface of the short cylinder portion are connected without any step, This is a merging rod with a difference in height so that the lowermost portion of the opening edge on the side wall portion side of the short cylindrical portion is positioned lower than the lowermost portion of the opening edge on the tube connection portion side.

第１の発明では、合流桝（１０）は、複数の流入部（１２）を有する桝本体（１４）を含み、たとえば、戸建住宅の床（１００）下に配置されて、住設機器から排出された排水を流す複数の排水枝管（１０２）と、排水を外部に排出する排水主管（１０６）とを繋ぐ。流入部は、桝本体の側壁部（２２）から外方に向かって突出する短筒部（３８）と、短筒部の一端に形成されて、排水枝管が接続される管接続部（４０）とを含む。短筒部には、その側壁部側の開口縁（４４）最下部が管接続部側の開口縁（４６）最下部よりも低い位置になるように、高低差がつけられている。これにより、排水枝管から桝本体内に流入する排水は、側壁部側の開口縁よりも外側で落下し始める。したがって、勢いのある排水が流入しても、排水は、その流れ方向を適切に下向きに変え、他の流入部に越流することなど無く、流出部（３０）から円滑に排出される。 In the first invention, the merging gutter (10) includes a gutter body (14) having a plurality of inflow portions (12), and is arranged, for example, under a floor (100) of a detached house, A plurality of drainage branch pipes (102) through which the discharged wastewater flows are connected to a drainage main pipe (106) through which the wastewater is discharged to the outside. An inflow part is formed in the short cylinder part (38) which protrudes outward from the side wall part (22) of a dredger main body, and the pipe connection part (40) which is formed in the end of a short cylinder part, and a drainage branch pipe is connected. ). The short cylinder portion is provided with a height difference so that the lowermost portion of the opening edge (44) on the side wall portion side is lower than the lowermost portion of the opening edge (46) on the tube connection portion side. As a result, the drainage flowing from the drainage branch pipe into the main body starts to fall outside the opening edge on the side wall portion side. Accordingly, even if vigorous wastewater flows in, the wastewater is smoothly discharged from the outflow portion (30) without changing the flow direction downward and overflowing to other inflow portions.

第１の発明によれば、排水の落下開始点を側壁部側の開口縁よりも外側にすることができるので、桝本体内に流入する排水を円滑に排出できる。 According to the first aspect of the invention, since the drain start point of the waste water can be outside the opening edge on the side wall portion side, the waste water flowing into the bag main body can be smoothly discharged.

第２の発明は、第１の発明に従属し、短筒部の管底は、管接続部側から側壁部側に向かって下り勾配となり、側壁部の下部には、中心方向に向かって下り勾配となる底壁部が形成され、この底壁部の中心部に、流出部が形成される。 A second invention is according to the first invention, the tube bottom of the short tube portion is Ri Do a downward slope toward the side wall portion side from the tube connection side, to the lower portion of the side wall portion, toward the center Te bottom wall portion serving as a downward slope is formed in the center of the bottom wall, the outflow portion Ru is formed.

第２の発明では、短筒部（３８）の管底（４２）に形成される下り勾配、つまり傾斜によって、側壁部側の開口縁（４４）最下部と管接続部側の開口縁（４６）最下部とに高低差がつけられる。これにより、勢いの無い排水が排水枝管から流入した場合には、排水は短筒部の管底に沿って流れ、管底の下り勾配によって若干加速されて、流出部（３０）から速やかに排出される。もちろん、第１の発明と同様に、排水の落下開始点を側壁部側の開口縁よりも外側にすることができるので、勢いのある排水が排水枝管から流入した場合にも、排水を円滑に排出できる。 In the second aspect of the invention, the bottom edge (44) at the side of the side wall and the opening edge (46 at the side of the pipe connecting part) are formed by the downward slope, that is, the inclination formed at the pipe bottom (42) of the short cylinder part (38). ) A difference in height is given to the bottom. As a result, when drainage with no momentum flows in from the drainage branch pipe, the drainage flows along the bottom of the short cylinder part, is slightly accelerated by the downward slope of the bottom of the pipe, and promptly from the outflow part (30). Discharged. Of course, as in the first aspect of the invention, the drainage start point of the drainage can be outside the opening edge on the side wall portion side, so even when vigorous drainage flows from the drainage branch pipe, Can be discharged.

第３の発明は、複数の流入部を有する桝本体を備える合流桝であって、流入部は、桝本体の側壁部から外方に向かって突出するように形成される短筒部、短筒部の管底の両側に形成される縦壁、および短筒部に形成される管接続部を含み、短筒部の側壁部側の開口縁最下部が管接続部側の開口縁最下部より低い位置にある、合流桝である。 A third aspect of the invention is a merging gutter having a gutter main body having a plurality of inflow portions, wherein the inflow portion is formed so as to protrude outward from the side wall portion of the gutter main body. Including a vertical wall formed on both sides of the tube bottom of the tube portion and a tube connection portion formed on the short tube portion, the lowermost opening edge on the side wall portion side of the short tube portion being lower than the lowermost opening edge on the tube connection portion side It is a confluence at a low position .

第３の発明では、短筒部（３８）の管底（４２）の両側から垂直方向に立ち上がるように縦壁（４８）が形成される。この縦壁によって排水の幅が規制され、排水幅の横方向への拡大を抑制できる。したがって、桝本体（１４）内に流入する排水をより適切に排出できる。 In the third aspect of the invention, the vertical wall (48) is formed so as to rise vertically from both sides of the tube bottom (42) of the short cylindrical portion (38). The width of the drainage is regulated by the vertical wall, and the lateral expansion of the drainage width can be suppressed. Therefore, the waste water flowing into the bag main body (14) can be discharged more appropriately.

第４の発明は、第１ないし第３のいずれかの発明に従属し、桝本体内に設けられ、各流入部の間を区画する仕切体をさらに備える。 A fourth invention is dependent on any one of the first to third inventions, and further includes a partition provided in the bag main body and partitioning the inflow portions.

第４の発明では、桝本体（１４）内に仕切体（５２）が設けられる。仕切体は、仕切板（５６）によって各流入部（１２）の間を区画し、流入部から流入する排水の流れ方向を流出部（３０）の方向にスムーズに変化させる案内機能によって、他の流入部への排水の越流を防止する。この場合、仕切体と側壁部（２２）側の開口縁（４４）との間の距離は短くなるが、流入部に短筒部（３８）を形成し、排水の落下開始点を側壁部（２２）側の開口縁（４４）よりも外側にしているので、仕切体と排水の落下開始点との間の距離は長くなる。したがって、排水は、その流れ方向が下向きに近い状態で仕切体と衝突することになるので、跳ね返ることなど無く、円滑に流出部から排出される。 In the fourth invention, the partition body (52) is provided in the bag main body (14). The partition body separates between the inflow portions (12) by the partition plate (56), and other functions are provided by a guide function for smoothly changing the flow direction of the wastewater flowing in from the inflow portion toward the outflow portion (30). Prevent overflow of drainage into the inflow. In this case, the distance between the partition and the opening edge (44) on the side wall portion (22) side is shortened, but a short cylinder portion (38) is formed at the inflow portion, and the falling start point of the drainage is defined as the side wall portion ( 22) Since it is outside the opening edge (44) on the side, the distance between the partition and the falling start point of the drainage becomes longer. Therefore, since the wastewater collides with the partition body in a state where the flow direction is close to the downward direction, the wastewater is smoothly discharged from the outflow portion without rebounding.

この発明によれば、排水の落下開始点を側壁部側の開口縁よりも外側にすることができるので、桝本体内に流入した排水を円滑に排出できる。 According to this invention, since the falling start point of the waste water can be outside the opening edge on the side wall portion side, the waste water that has flowed into the main body can be discharged smoothly.

この発明の上述の目的，その他の目的，特徴および利点は、図面を参照して行う以下の実施例の詳細な説明から一層明らかとなろう。 The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

図１を参照して、この発明の一実施例である合流桝１０は、戸建住宅などの床１００下に配置されて、トイレや風呂などの住設機器から排出された生活排水を流す複数の排水枝管１０２と、基礎１０４を貫通して生活排水を外部に排出する排水主管１０６とを繋ぐ。図２および図３に示すように、合流桝１０は、複数の流入部１２を有する桝本体１４、桝本体１４の点検口１６に装着される蓋１８、および蓋１８の抜け出しを防止するための押え部材２０を含み、塩化ビニル等の合成樹脂によって形成される。 Referring to FIG. 1, a confluence basin 10 according to an embodiment of the present invention is disposed under a floor 100 such as a detached house, and flows a plurality of domestic wastewater discharged from residential equipment such as a toilet and a bath. The drainage branch pipe 102 is connected to a drainage main pipe 106 that penetrates the foundation 104 and discharges domestic wastewater to the outside. As shown in FIGS. 2 and 3, the merging gutter 10 includes a gutter body 14 having a plurality of inflow portions 12, a lid 18 attached to the inspection port 16 of the gutter body 14, and preventing the lid 18 from coming out. The holding member 20 is included and formed of a synthetic resin such as vinyl chloride.

図４に示すように、桝本体１４は、射出成形などによって形成され、略円筒形状の側壁部２２を含む。側壁部２２の内径は、たとえば１５５ｍｍである。側壁部２２の上端２４は開口しており、その上端開口が点検口１６として利用される。この点検口１６には、詳細は後述する蓋１８が着脱自在に装着される。また、側壁部２２の上端２４には、外側に向かって突出する４つの第１爪部２６が形成される。 As shown in FIG. 4, the bag main body 14 is formed by injection molding or the like, and includes a substantially cylindrical side wall portion 22. The inner diameter of the side wall portion 22 is 155 mm, for example. The upper end 24 of the side wall portion 22 is open, and the upper end opening is used as the inspection port 16. A lid 18, which will be described in detail later, is detachably attached to the inspection port 16. In addition, four first claw portions 26 projecting outward are formed at the upper end 24 of the side wall portion 22.

側壁部２２の下部には、テーパ状の底壁部２８が形成され、底壁部２８の上面、すなわち桝本体１４の底面は中心方向に向かって下り勾配となる。この底壁部２８の中心部に、円筒形状の流出部３０が下方に延びるように形成される。流出部３０は、排水主管１０６へと排水を流出する流出口であると共に、排水主管１０６と接着接合などによって接続される接続部でもある。流出部３０の外径は、たとえば１０６ｍｍであり、その高さは、たとえば４０ｍｍである。 A tapered bottom wall portion 28 is formed in the lower portion of the side wall portion 22, and the upper surface of the bottom wall portion 28, that is, the bottom surface of the eaves body 14 has a downward slope toward the center direction. A cylindrical outflow portion 30 is formed at the center of the bottom wall portion 28 so as to extend downward. The outflow portion 30 is an outlet that discharges drainage to the drainage main pipe 106 and is also a connection portion that is connected to the drainage main pipe 106 by adhesive bonding or the like. The outer diameter of the outflow portion 30 is, for example, 106 mm, and the height thereof is, for example, 40 mm.

また、側壁部２２は、一方が内側に向かって凹んでおり、そこに段差部３２が形成される。段差部３２の両側端上部のそれぞれは段差状になっており、そこに第１支持部３４が形成され、その第１支持部３４の水平面同士を結ぶように、円弧状に突出する第２支持部３６が形成される。 Moreover, one side of the side wall part 22 is dented inward, and the level | step-difference part 32 is formed there. Each of the upper portions on both sides of the step portion 32 has a step shape, and a first support portion 34 is formed there, and a second support projecting in an arc shape so as to connect the horizontal surfaces of the first support portion 34 to each other. A portion 36 is formed.

側壁部２２の段差部３２側を除く３方側のそれぞれには、外方に向かって略水平方向に突出する流入部１２が形成される。流入部１２は、排水枝管１０２からの排水が流入する流入口であると共に、排水枝管１０２と接着接合などによって接続される接続部でもある。この実施例では、３つの流入部１２が設けられ、３つの排水枝管１０２からの排水が流入（合流）可能となっている。 An inflow portion 12 that protrudes outward in a substantially horizontal direction is formed on each of the three sides of the side wall portion 22 excluding the stepped portion 32 side. The inflow portion 12 is an inflow port through which drainage from the drainage branch pipe 102 flows, and is also a connection portion connected to the drainage branch pipe 102 by adhesive bonding or the like. In this embodiment, three inflow portions 12 are provided, and drainage from the three drainage branch pipes 102 can flow in (join).

具体的には、図５を参照して、流入部１２は、側壁部２２から外方に向かって突出する略円筒状の短筒部３８、および短筒部３８の一端に形成される管接続部４０を含む。短筒部３８は、管接続部４０から側壁部２２に向かって下り勾配となる管底４２を有し、短筒部３８の側壁部２２側の開口縁４４最下部は、管接続部４０側の開口縁４６最下部より低い位置に位置する。また、短筒部３８には、その管底４２の両側から垂直方向に立ち上がる縦壁４８が形成され、短筒部３８の底部は、管底４２と縦壁４８とによって溝状になっている。短筒部３８の管接続部４０側の開口縁４６の径は、排水枝管１０２の内径と同じ、或いはほぼ同じ大きさであり、排水枝管１０２の内面と短筒部３８の内面とは滑らかに接続される。短筒部３８の管底４２の下り勾配は、たとえば、水平距離が１０−５０ｍｍであるのに対して、高低差が２−２０ｍｍになるように形成される。 Specifically, referring to FIG. 5, inflow portion 12 has a substantially cylindrical short tube portion 38 protruding outward from side wall portion 22, and a pipe connection formed at one end of short tube portion 38. Part 40 is included. The short cylinder part 38 has a pipe bottom 42 that is inclined downward from the pipe connection part 40 toward the side wall part 22, and the lowermost opening edge 44 on the side wall part 22 side of the short cylinder part 38 is on the pipe connection part 40 side. It is located at a position lower than the lowermost part of the opening edge 46 of the. Further, the short cylinder portion 38 is formed with a vertical wall 48 rising vertically from both sides of the tube bottom 42, and the bottom portion of the short cylinder portion 38 is formed into a groove shape by the tube bottom 42 and the vertical wall 48. . The diameter of the opening edge 46 on the pipe connecting part 40 side of the short cylinder part 38 is the same as or substantially the same as the inner diameter of the drainage branch pipe 102, and the inner surface of the drainage branch pipe 102 and the inner surface of the short cylinder part 38 are Connected smoothly. The descending slope of the tube bottom 42 of the short cylindrical portion 38 is formed so that, for example, the horizontal distance is 10-50 mm and the height difference is 2-20 mm.

管接続部４０は、排水枝管１０２の管端を受け入れる受口であって、略円筒状に形成される。管接続部４０の外面端部には、係止溝５０が形成される。流入部１２に排水枝管１０２を接続しないときには、この係止溝５０を利用してキャップが装着され、排水の漏れが防止される。管接続部４０の内径は、排水枝管１０２の外径と同じ、或いはほぼ同じ大きさであり、たとえば９０ｍｍである。また、管接続部４０の軸方向の長さは、たとえば４０ｍｍである。 The pipe connection part 40 is a receiving port that receives the pipe end of the drainage branch pipe 102 and is formed in a substantially cylindrical shape. A locking groove 50 is formed at the outer surface end of the pipe connecting portion 40. When the drainage branch pipe 102 is not connected to the inflow portion 12, a cap is attached using the locking groove 50 to prevent drainage leakage. The inner diameter of the pipe connecting portion 40 is the same as or substantially the same as the outer diameter of the drainage branch pipe 102, for example, 90 mm. Moreover, the length of the axial direction of the pipe connection part 40 is 40 mm, for example.

また、桝本体１４の内部には、各流入部１２の間を区画する仕切体５２が着脱自在に設けられる。具体的には、図６に示すように、仕切体５２は、射出成形などによって形成され、当接板５４および仕切板５６を備える。 Moreover, the partition body 52 which divides between each inflow part 12 is provided in the inside of the collar main body 14 so that attachment or detachment is possible. Specifically, as shown in FIG. 6, the partition body 52 is formed by injection molding or the like, and includes a contact plate 54 and a partition plate 56.

当接板５４は、桝本体１４の段差部３２と対向するように形成される板状体であって、その外面の両側部上部は、段差部３２の両側端と沿う。また、当接板５４の上端には、外側に向かって突出する第１当接部５８が形成される。この第１当接部５８は、段差部３２の段差状の第１支持部３４に沿う形状に形成され、桝本体１４に仕切体５２を取り付けたときには、第１当接部５８と第１支持部３４とが当接する（図２参照）。 The contact plate 54 is a plate-like body that is formed so as to face the stepped portion 32 of the bag main body 14, and upper portions on both sides of the outer surface are along both side ends of the stepped portion 32. A first contact portion 58 that protrudes outward is formed at the upper end of the contact plate 54. The first contact portion 58 is formed in a shape along the step-shaped first support portion 34 of the step portion 32, and when the partition body 52 is attached to the bag main body 14, the first contact portion 58 and the first support portion are formed. The part 34 contacts (see FIG. 2).

仕切板５６は、各流入部１２の間を区画して、他の流入部１２への排水の越流を防止するものであり、各流入部１２に対向する位置のそれぞれに形成される。具体的には、仕切板５６は、流入部１２に対向する主面５６ａを有し、主面５６ａの下端中央から上方および両側方に向かうに伴い、流入部１２に向かって湾曲する板状体に形成される。つまり、仕切板５６は、流入部１２の側壁部２２側の開口縁４４を庇状に覆い、仕切板５６の側面上部５６ｂは、開口縁４４の上側半周に亘って、桝本体１４の側壁部２２の内面に沿う（図２参照）。また、仕切板５６の側面下部５６ｃは、下端に向かうに伴い内側に向かって放物線を描くように湾曲する。つまり、仕切板５６の側面下部５６ｃと桝本体１４の側壁部２２の内面とは離れており、その間には空間が形成される。この空間は、仕切板５６によって区画される排水の通路同士を、桝本体１４の周方向に連通する。 The partition plate 56 divides the inflow portions 12 to prevent overflow of drainage to the other inflow portions 12, and is formed at each position facing the inflow portions 12. Specifically, the partition plate 56 has a main surface 56a facing the inflow portion 12, and is a plate-like body that curves toward the inflow portion 12 as it goes upward and both sides from the center of the lower end of the main surface 56a. Formed. That is, the partition plate 56 covers the opening edge 44 on the side wall 22 side of the inflow portion 12 in a bowl shape, and the side surface upper portion 56 b of the partition plate 56 extends over the upper half circumference of the opening edge 44. 22 along the inner surface (see FIG. 2). Further, the lower side surface 56c of the partition plate 56 is curved so as to draw a parabola inward as it goes toward the lower end. That is, the side surface lower portion 56c of the partition plate 56 and the inner surface of the side wall portion 22 of the bag main body 14 are separated from each other, and a space is formed therebetween. This space communicates the drainage passages partitioned by the partition plate 56 in the circumferential direction of the main body 14.

また、仕切体５２は、その外面が仕切板５６の側面上部５６ｂと同一面となる壁部６０を備える。この壁部６０は、当接板５４と一体となって略円筒形に形成され、壁部６０の外面は側壁部２２の内面に沿う。壁部６０の上端には、その全周に亘って、第１当接部５８と一体となって外方に向かって突出する第２当接部６２が形成される。桝本体１４に仕切体５２を取り付けたときには、第２当接部６２と第２支持部３６とが当接し、第１当接部５８および第２当接部６２の上面は、段差部３２の上面と同一面を形成する（図２参照）。 The partition 52 includes a wall portion 60 whose outer surface is flush with the side surface upper portion 56 b of the partition plate 56. The wall 60 is formed in a substantially cylindrical shape integrally with the contact plate 54, and the outer surface of the wall 60 is along the inner surface of the side wall 22. The upper end of the wall portion 60 is formed with a second contact portion 62 that protrudes outward along with the first contact portion 58 over the entire circumference. When the partition body 52 is attached to the heel body 14, the second contact portion 62 and the second support portion 36 are in contact with each other, and the upper surfaces of the first contact portion 58 and the second contact portion 62 are The same surface as the upper surface is formed (see FIG. 2).

このような仕切体５２は、流入部１２から流入する排水を案内して、排水の流れ方向を流出部３０の方向、すなわち下向きにスムーズに変化させる案内機能を有し、他の流入部１２への排水の越流を防止する。また、一度に多量の排水が桝本体１４内に流入した場合には、仕切板５６の側面下部５６ｃと側壁部２２との間の空間を通して、排水を周方向（横方向）にも流し、桝本体１４内での満水状態の発生を防止する。 Such a partition 52 has a guide function for guiding the drainage flowing from the inflow portion 12 and smoothly changing the flow direction of the drainage toward the outflow portion 30, that is, downward, to the other inflow portion 12. Prevent overflow of wastewater. In addition, when a large amount of drainage flows into the bowl main body 14 at a time, the drainage is also caused to flow in the circumferential direction (lateral direction) through the space between the side surface lower part 56c of the partition plate 56 and the side wall part 22, The occurrence of a full water condition in the main body 14 is prevented.

また、桝本体１４の点検口１６には、その内部に一方通気弁６４を備える蓋１８が着脱自在に装着される。図７に示すように、蓋１８は、射出成形などによって形成され、有頂円筒状の内筒部６６、および内筒部６６の外面下部に形成される鍔部６８を備える。内筒部６６には、鍔部６８の上面に沿うように、桝本体１４内と外部とを連通するための通気孔７０が形成される。また、鍔部６８の下面には、円筒形状の嵌合部７２が形成される。嵌合部７２は、桝本体１４の点検口１６に嵌め込まれる部位であり、蓋１８を桝本体１４に取り付けたときには、嵌合部７２の下端と、第１当接部５８、第２当接部６２および段差部３２の上面とが当接する（図２参照）。したがって、上述の仕切体５２は、桝本体１４と蓋１８とによって挟まれる状態になるので、蓋１８が桝本体１４にしっかりと固定されていれば、仕切体５２もしっかりと固定される。また、嵌合部７２の外面にはＯリング等のシール部材７４が装着され、桝本体１４の側壁部２２内面と嵌合部７２外面との間の気密性および水密性が確保される。 Moreover, the lid | cover 18 which has the one ventilation valve 64 in the inside is attached to the inspection port 16 of the bag main body 14 so that attachment or detachment is possible. As shown in FIG. 7, the lid 18 is formed by injection molding or the like, and includes a top cylindrical inner tube portion 66 and a flange portion 68 formed at the lower outer surface of the inner tube portion 66. The inner cylinder portion 66 is formed with a vent hole 70 for communicating the inside of the heel body 14 with the outside along the upper surface of the heel portion 68. A cylindrical fitting portion 72 is formed on the lower surface of the collar portion 68. The fitting portion 72 is a portion that is fitted into the inspection port 16 of the heel body 14, and when the lid 18 is attached to the heel body 14, the lower end of the fitting portion 72, the first contact portion 58, and the second contact portion. The upper surface of the part 62 and the step part 32 abut (see FIG. 2). Therefore, since the above-described partition body 52 is sandwiched between the heel body 14 and the lid 18, if the lid 18 is firmly fixed to the heel body 14, the partition body 52 is also firmly fixed. In addition, a seal member 74 such as an O-ring is attached to the outer surface of the fitting portion 72, and airtightness and watertightness between the inner surface of the side wall portion 22 of the bag main body 14 and the outer surface of the fitting portion 72 are ensured.

一方通気弁６４は、蓋１８とは別体として形成され、バヨネット結合またはネジ結合などを利用して、内筒部６６の内部に取り付けられる（図２参照）。一方通気弁６４は、通常時には、外部への排水および悪臭の漏れを確実に防止する。一方、桝本体１４内で負圧が発生したときには、通気孔７０と桝本体１４内とを連通させて、外部の空気を桝本体１４内に取り込み、桝本体１４内を大気圧に保つ。 On the other hand, the vent valve 64 is formed separately from the lid 18 and is attached to the inside of the inner cylinder portion 66 by using bayonet coupling or screw coupling (see FIG. 2). On the other hand, the vent valve 64 reliably prevents drainage to the outside and leakage of bad odor during normal times. On the other hand, when a negative pressure is generated in the bag main body 14, the air hole 70 and the bag main body 14 are communicated with each other, external air is taken into the bag main body 14, and the inside of the bag main body 14 is maintained at atmospheric pressure.

また、桝本体１４には、蓋１８の上から押え部材２０が取り付けられる。押え部材２０は、蓋１８が桝本体１４から不用意に外れることを防止すると共に、通気孔７０に空気を導入するための空気通路を形成する。 A presser member 20 is attached to the heel body 14 from above the lid 18. The pressing member 20 prevents the lid 18 from being inadvertently detached from the bag main body 14 and forms an air passage for introducing air into the vent hole 70.

具体的には、図８に示すように、押え部材２０は、ドーナツ板状に形成される上壁部７６を備える。上壁部７６の中央に形成される円形の孔７８の径は、蓋１８の内筒部６６の外径とほぼ同じ大きさに設定され、孔７８の縁と内筒部６６の外面とは当接する。また、上壁部７６の下面周縁部には、下方向に延びる短円筒形状の側壁部８０が形成される。この側壁部８０の内面には、桝本体１４の４つの第１爪部２６と対応する位置に、内側に向かって突出する４つの第２爪部８２が形成される。また、上壁部７６の下面には、蓋１８の通気孔７０の高さに相当する高さを有する嵩上部８４が形成される。 Specifically, as shown in FIG. 8, the pressing member 20 includes an upper wall portion 76 formed in a donut plate shape. The diameter of the circular hole 78 formed in the center of the upper wall portion 76 is set to be approximately the same as the outer diameter of the inner cylindrical portion 66 of the lid 18, and the edge of the hole 78 and the outer surface of the inner cylindrical portion 66 are Abut. In addition, a short cylindrical side wall 80 extending downward is formed at the peripheral edge of the lower surface of the upper wall 76. On the inner surface of the side wall portion 80, four second claw portions 82 projecting inward are formed at positions corresponding to the four first claw portions 26 of the heel body 14. Further, a bulky portion 84 having a height corresponding to the height of the vent hole 70 of the lid 18 is formed on the lower surface of the upper wall portion 76.

桝本体１４に押え部材２０を取り付ける際には、先に桝本体１４の点検口１６に蓋１８を装着しておき、その蓋１８の上から押え部材２０を取り付ける。具体的には、押え部材２０の上壁部７６の孔７８に蓋１８の内筒部６６を挿通し、押え部材２０の側壁部８０内に、蓋１８と桝本体１４の側壁部２２の上端部分とを差し込む。そして、押え部材２０を周方向に回転させて、桝本体１４の第１爪部２６と押え部材２０の第２爪部８２とを勘合させることによって、桝本体１４に押え部材２０を固定する。つまり、押え部材２０の取り付けには、差し込んで回転させることによって固定するバヨネット結合が利用される。 When attaching the presser member 20 to the heel body 14, the lid 18 is first attached to the inspection port 16 of the heel body 14, and the presser member 20 is attached from above the lid 18. Specifically, the inner cylindrical portion 66 of the lid 18 is inserted into the hole 78 of the upper wall portion 76 of the pressing member 20, and the upper ends of the lid 18 and the side wall portion 22 of the bag main body 14 are inserted into the side wall portion 80 of the pressing member 20. Insert the part. Then, the presser member 20 is fixed to the heel body 14 by rotating the presser member 20 in the circumferential direction and fitting the first claw portion 26 of the heel body 14 with the second claw portion 82 of the keeper member 20. That is, bayonet coupling that is fixed by inserting and rotating is used for attaching the pressing member 20.

桝本体１４に押え部材２０を取り付けると、押え部材２０の第２爪部８２上面は、桝本体１４の第１爪部２６下面と当接し、蓋１８の鍔部６８上面は、押え部材２０の嵩上部８４の下端と当接する（図２参照）。押え部材２０は、第１爪部２６と第２爪部８２との当接によって上方への動きが規制されるので、その押え部材２０によって押えられる蓋１８は、桝本体１４にしっかりと固定される。このように蓋１８と別体として形成した押え部材２０を用いることで、蓋１８の着脱性が向上する。 When the pressing member 20 is attached to the heel body 14, the upper surface of the second claw portion 82 of the pressing member 20 comes into contact with the lower surface of the first claw portion 26 of the heel body 14, and the upper surface of the heel portion 68 of the lid 18 is It contacts the lower end of the bulky portion 84 (see FIG. 2). Since the upward movement of the presser member 20 is restricted by the contact between the first claw part 26 and the second claw part 82, the lid 18 pressed by the presser member 20 is firmly fixed to the heel body 14. The By using the pressing member 20 formed separately from the lid 18 in this way, the detachability of the lid 18 is improved.

また、このとき、押え部材２０の上壁部７６下面と蓋１８の鍔部６８上面との間には、通気孔７０に空気を導入するための空気通路８６が形成され、押え部材２０は、蓋１８の鍔部６８の上面上方を完全に覆う（図２参照）。これにより、蓋１８の鍔部６８上面に埃などが堆積し難くなるので、蓋１８の通気孔７０から桝本体１４内に外気を取り込むときに、それと同時に埃などを吸引してしまうことが防止され、一方通気弁６４の機能低下を防止できる。 At this time, an air passage 86 for introducing air into the vent hole 70 is formed between the lower surface of the upper wall portion 76 of the pressing member 20 and the upper surface of the collar portion 68 of the lid 18. The upper surface of the collar portion 68 of the lid 18 is completely covered (see FIG. 2). As a result, dust or the like hardly accumulates on the upper surface of the collar portion 68 of the lid 18, and therefore, when outside air is taken into the collar body 14 from the vent hole 70 of the lid 18, dust and the like are prevented from being sucked at the same time. On the other hand, the function deterioration of the vent valve 64 can be prevented.

このような合流桝１０は、上述したように、戸建住宅の床１００下などに設置されて、排水枝管１０２と排水主管１０６とを繋ぐ。このため、住設機器から排出された排水は、排水枝管１０２を流れて流入部１２から桝本体１４内に流入し、流出部３０から排水主管１０６へと排出される。 As described above, the merging gutter 10 is installed under the floor 100 of the detached house and connects the drainage branch pipe 102 and the drainage main pipe 106. For this reason, the wastewater discharged from the housing equipment flows through the drainage branch pipe 102, flows into the main body 14 from the inflow portion 12, and is discharged from the outflow portion 30 to the drainage main pipe 106.

ここで、排水枝管１０２から桝本体１４内に流入する排水が充分に減速されている場合、つまり排水の勢いが無い場合には、排水は、流入部１２の短筒部３８の管底４２に沿って流れ、管底４２の下り勾配によって若干加速されて、自重によって速やかに流出部３０から排出される。 Here, when the drainage flowing into the main body 14 from the drainage branch pipe 102 is sufficiently decelerated, that is, when there is no momentum of the drainage, the drainage is the tube bottom 42 of the short cylindrical portion 38 of the inflow portion 12. , And is slightly accelerated by the downward gradient of the tube bottom 42, and is quickly discharged from the outflow portion 30 by its own weight.

また、排水の勢いが比較的弱い場合、排水は、流入部１２の短筒部３８の管底４２に沿って流れ、側壁部２２側の開口縁４４から中心方向に向かって飛び出す。そして、自重によって、或いは仕切体５２の案内機能によって、その流れ方向を鉛直下向きへと変え、流出部３０から円滑に排出される。 When the momentum of the drainage is relatively weak, the drainage flows along the tube bottom 42 of the short cylindrical portion 38 of the inflow portion 12 and jumps out from the opening edge 44 on the side wall portion 22 side toward the center. Then, the flow direction is changed vertically downward by its own weight or by the guide function of the partition body 52, and is smoothly discharged from the outflow portion 30.

さらに、排水の勢いが強い場合、排水は、流入部１２の短筒部３８の管底４２の下り勾配が始まる地点から飛び出すと共に、その地点から自重によって落下し始める。そして、仕切体５２の案内機能によって、その流れ方向を鉛直下向きへと変え、流出部３０から排出される。このとき、排水が落下を開始する地点（落下開始点）と仕切体５２（具体的には仕切板５６の主面５６ａ）との間の距離が短いと、排水は、その流れ方向が水平方向に近いまま仕切体５２と衝突して跳ね返ってしまう。つまり、仕切体５２の案内機能を超える勢いで排水が仕切体５２と衝突して、排水は円滑に排出されなくなってしまう。しかし、この実施例のように、排水の落下開始点と仕切体５２との距離が長いと、排水は、その流れ方向が下向きに近い状態になって仕切体５２と衝突するので、仕切体５２の案内機能が適切に発揮されて、排水は円滑に排出される。 Further, when the momentum of the drainage is strong, the drainage jumps out from the point where the descending slope of the tube bottom 42 of the short cylindrical portion 38 of the inflow portion 12 starts and starts to fall by its own weight from that point. Then, the flow direction is changed to a vertically downward direction by the guide function of the partition body 52, and the flow is discharged from the outflow portion 30. At this time, if the distance between the point where the drainage starts to fall (falling start point) and the partition 52 (specifically, the main surface 56a of the partition plate 56) is short, the flow direction of the drainage is horizontal. It collides with the partition body 52 and is bounced back. That is, the waste water collides with the partition body 52 with a momentum exceeding the guidance function of the partition body 52, and the waste water is not smoothly discharged. However, as in this embodiment, if the distance between the drain start point of the drainage and the partition 52 is long, the wastewater collides with the partition 52 because the flow direction is close to the downward direction. The guide function is properly demonstrated, and the wastewater is discharged smoothly.

すなわち、特許文献１の技術のように、桝本体内の開口縁から排水の落下が始まるようにすると、落下開始点と仕切体との距離が近くなってしまい、勢いのあるまま排水が仕切体と衝突して跳ね返るので、排水を円滑に排出できない。 That is, if the drainage of the drainage starts from the opening edge in the main body as in the technique of Patent Document 1, the distance between the start point of the fall and the partition becomes close, and the drainage is separated from the partition with vigor. Since it collides and bounces, the drainage cannot be discharged smoothly.

これに対して、この実施例では、その管底４２が下り勾配となる短筒部３８を流入部１２に形成したので、排水の落下開始点が仕切体５２から離れた地点となる。これにより、排水が仕切体５２と衝突するときには、排水の流れ方向が予め下向きに近い状態に変わり、排水の水平方向の勢いは弱められている。したがって、排水は、仕切体５２と衝突しても水平方向に跳ね返ることは無く、仕切体５２の仕切板５６の主面５６ａを滑るようにして、円滑に流出部３０から排出される。 On the other hand, in this embodiment, since the short cylinder portion 38 whose tube bottom 42 has a downward slope is formed in the inflow portion 12, the drainage start point of the drainage is a point away from the partition body 52. Thereby, when the wastewater collides with the partition body 52, the flow direction of the wastewater is changed to a state close to the downward direction in advance, and the horizontal force of the wastewater is weakened. Therefore, the waste water does not rebound in the horizontal direction even if it collides with the partition body 52, and is smoothly discharged from the outflow portion 30 so as to slide on the main surface 56 a of the partition plate 56 of the partition body 52.

また、短筒部３８の管底４２の両側から立ち上がる壁部４８を形成したので、排水の幅を規制でき、排水幅の横方向への拡大を抑制できる。これにより、勢いのある排水が桝本体１４内に流入しても、排水は仕切体５２と確実に衝突して、仕切体５２の案内機能によってその流れ方向を下向きに変える。したがって、仕切板５６の側面下部５６ｃと桝本体１４の側壁部２２との間の空間は、一度に多量の排水が桝本体１４内に流入する非常時にのみ利用されることになり、この空間を通って他の流入部１２に排水が越流することはない。 Moreover, since the wall part 48 which stands | starts up from the both sides of the pipe bottom 42 of the short cylinder part 38 was formed, the width | variety of drainage can be controlled and the expansion to the horizontal direction of drainage width can be suppressed. As a result, even if vigorous wastewater flows into the main body 14, the wastewater reliably collides with the partition body 52, and the flow direction is changed downward by the guide function of the partition body 52. Therefore, the space between the side surface lower portion 56c of the partition plate 56 and the side wall portion 22 of the bag main body 14 is used only in an emergency when a large amount of drainage flows into the bag main body 14 at a time. The drainage does not overflow to the other inflow part 12 through.

この実施例によれば、流入部１２に、その管底４２に下り勾配を有する短筒部３８を形成したので、排水の落下開始点を側壁部２２側の開口縁４４よりも外側にすることができ、排水の落下開始点を仕切体５２から離すことができる。これにより、桝本体１４内に流入した排水の流れ方向を適切に下向きに変えることができ、排水を円滑に排出できる。したがって、桝本体１４内が満水状態になることを防止でき、合流桝１０の上流側に設けられる排水トラップの破封を防止できる。また、排水性能が向上するので、合流桝１０を小型化できる。 According to this embodiment, since the short cylindrical portion 38 having a downward slope is formed on the pipe bottom 42 in the inflow portion 12, the drainage start point of the drainage is set outside the opening edge 44 on the side wall portion 22 side. The drainage start point of drainage can be separated from the partition body 52. Thereby, the flow direction of the waste_water | drain which flowed in in the coffin main body 14 can be changed appropriately downward, and waste_water | drain can be discharged | emitted smoothly. Therefore, the inside of the main body 14 can be prevented from being filled with water, and the drainage trap provided on the upstream side of the joining base 10 can be prevented from being broken. Moreover, since drainage performance improves, the confluence | merging gutter 10 can be reduced in size.

なお、上述の実施例では、蓋１８と仕切体５２とを別体として成形したが、これに限定されず、蓋１８と仕切体５２とは一体に成形されていてもよい。また、桝本体１４内に仕切体５２を設けるようにしたが、仕切体５２は必ずしも設ける必要はない。仕切体５２を設けない場合でも、流入部１２に、その管底４２に下り勾配を有する短筒部３８を形成することによって、他の流入部１２から離れた位置で排水の落下を開始させることができるので、他の流入部１２への越流を防止でき、排水を円滑に排出できる。 In the above-described embodiment, the lid 18 and the partition body 52 are formed as separate bodies. However, the present invention is not limited to this, and the lid 18 and the partition body 52 may be formed integrally. Moreover, although the partition body 52 was provided in the bag main body 14, the partition body 52 does not necessarily need to be provided. Even when the partition 52 is not provided, the drainage of the drainage can be started at a position away from the other inflow portions 12 by forming a short cylindrical portion 38 having a downward slope on the tube bottom 42 in the inflow portion 12. Therefore, the overflow to the other inflow portion 12 can be prevented, and the drainage can be discharged smoothly.

また、上述の実施例では、短筒部３８の管底４２の下り勾配によって、その側壁部２２側の開口縁４４最下部が管接続部４０側の開口縁４６最下部より低い位置になるように高低差を設けたが、これに限定されず、この高低差は、段差によって設けることもできる。ただし、段差によって高低差を設けると、排水枝管１０２から流入する排水の勢いが弱い場合には、その段差の位置で排水の流れが悪くなって、ゴミ等が堆積してしまう恐れがある。したがって、側壁部２２側の開口縁４４最下部と管接続部４０側の開口縁４６最下部との高低差は、図１に示す実施例のように、勾配つまり傾斜によって形成することが望ましい。 Further, in the above-described embodiment, the lowermost portion of the opening edge 44 on the side wall portion 22 side is positioned lower than the lowermost portion of the opening edge 46 on the tube connection portion 40 side due to the downward slope of the tube bottom 42 of the short tube portion 38. However, the present invention is not limited to this, and the height difference can be provided by a step. However, if the level difference is provided by the step, if the momentum of the drainage flowing from the drainage branch pipe 102 is weak, the drainage flow may deteriorate at the level of the step, and dust or the like may accumulate. Therefore, it is desirable that the difference in height between the lowermost portion of the opening edge 44 on the side wall portion 22 side and the lowermost portion of the opening edge 46 on the tube connection portion 40 side is formed by a gradient, that is, an inclination as in the embodiment shown in FIG.

また、短筒部３８の管底４２の下り勾配は、管底４２の軸方向全長に亘って形成するようにしてもよいし、管底４２の一部が下り勾配となるように形成してもよい。 In addition, the descending slope of the tube bottom 42 of the short cylindrical portion 38 may be formed over the entire axial length of the tube bottom 42 or may be formed so that a part of the tube bottom 42 has a descending slope. Also good.

また、管底４２に下り勾配を有する短筒部３８を全ての流入部１２に形成する必要はない。たとえば、１つの流入部１２のみに短筒部３８を形成し、勢いのある排水が流れる排水枝管１０２をその流入部１２に接続するようにするとよい。 Further, it is not necessary to form the short cylindrical portion 38 having a downward slope on the tube bottom 42 in all the inflow portions 12. For example, the short cylinder part 38 may be formed only in one inflow part 12, and the drainage branch pipe 102 through which the vigorous drainage flows may be connected to the inflow part 12.

さらに、上述の実施例では、流入部１２の管接続部４０を受口としたが、これに限定されず、管接続部４０を差口としてもよい。また、管接続部４０と排水枝管１０２との接合方法は、接着接合に限定されず、たとえば、これらをゴム輪接合することもできる。また、流入部１２の短筒部３８および管接続部４０を略円筒状に形成したが、これに限定されず、楕円筒状や卵筒状などに形成してもかまわない。 Furthermore, in the above-described embodiment, the pipe connection portion 40 of the inflow portion 12 is the receiving port, but the present invention is not limited to this, and the pipe connection portion 40 may be the insertion port. Moreover, the joining method of the pipe connection part 40 and the drainage branch pipe 102 is not limited to adhesive joining, For example, these can also be rubber ring joined. Moreover, although the short cylinder part 38 and the pipe connection part 40 of the inflow part 12 were formed in the substantially cylindrical shape, it is not limited to this, You may form in an elliptical cylinder shape, an egg cylinder shape, etc.

また、上述の実施例では、３つの流入部１２を設けたが、これに限定されず、２つの流入部１２を設けることもできるし、４つ以上の流入部１２を設けることもできる。 Moreover, in the above-mentioned Example, although the three inflow parts 12 were provided, it is not limited to this, Two inflow parts 12 can also be provided, and four or more inflow parts 12 can also be provided.

また、上述の実施例では、桝本体１４に蓋１８および押え部材２０を取り付けるようにしたが、これらは必ずしも必要ではなく、蓋１８および押え部材２０を設けないこともあるし、蓋１８および押え部材２０を適宜な形状および構成に変更することもある。 In the above-described embodiment, the lid 18 and the presser member 20 are attached to the bag main body 14. However, these are not always necessary, and the lid 18 and the presser member 20 may not be provided. The member 20 may be changed to an appropriate shape and configuration.

また、上述の実施例では、一般住宅などの床１００下に合流桝１０を配管したが、これに限定されず、合流桝１０は、屋外の排水管および下水管などに配管することもできる。また、合流桝１０は、流出部３０を桝本体１４の底壁部２８に形成して排水を下方に排出する、所謂ドロップ桝であることに限定されず、流出部３０を桝本体１４の側壁部２２に形成して、側方から排水を流出する桝であってもよい。 Moreover, in the above-mentioned Example, although the confluence | merging gutter 10 was piping under floor 100, such as a general house, it is not limited to this, The confluence | merging gutter 10 can also be piped to an outdoor drainage pipe, a sewer pipe, etc. In addition, the joining dredger 10 is not limited to a so-called drop dredging in which the outflow portion 30 is formed in the bottom wall portion 28 of the dredge main body 14 and discharges the drainage downward. It may be a trough that is formed in the portion 22 and drains the drainage from the side.

なお、上述した径や高さ等の具体的数値は、いずれも単なる一例であり、必要に応じて適宜変更可能である。 Note that the specific numerical values such as the diameter and height described above are merely examples, and can be appropriately changed as necessary.

この発明の一実施例の合流桝を床下に配管した様子を示す図解図である。It is an illustration figure which shows a mode that the confluence | merging gutter of one Example of this invention was piped under the floor. 図１の合流桝を示す断面図である。It is sectional drawing which shows the confluence | merging rod of FIG. 図１の合流桝を示す側面図である。It is a side view which shows the confluence | merging rod of FIG. 図１の合流桝が備える桝本体を示す斜視図である。It is a perspective view which shows the cocoon main body with which the merging gutter of FIG. 1 is provided. 図４の桝本体の要部（流入部）を示す図解図である。It is an illustration figure which shows the principal part (inflow part) of the bag main body of FIG. 図１の合流桝が備える仕切体を示す斜視図である。It is a perspective view which shows the partition with which the merging gutter of FIG. 1 is provided. 図１の合流桝が備える蓋を示す斜視図である。It is a perspective view which shows the lid | cover with which the confluence | merging rod of FIG. 1 is provided. 図１の合流桝が備える押え部材を示す斜視図である。It is a perspective view which shows the pressing member with which the confluence | merging rod of FIG. 1 is provided.

Explanation of symbols

１０ …合流桝
１２ …流入部
１４ …桝本体
１８ …蓋
２０ …押え部材
３０ …流出部
３８ …短筒部
４０ …管接続部
４２ …短筒部の管底
４４，４６ …短筒部の開口縁
４８ …短筒部の縦壁
５２ …仕切体 DESCRIPTION OF SYMBOLS 10 ... Confluence | merging rod 12 ... Inflow part 14 ... Lid main body 18 ... Lid 20 ... Pressing member 30 ... Outflow part 38 ... Short cylinder part 40 ... Pipe connection part 42 ... Pipe bottom 44,46 ... Short cylinder part opening Edge 48 ... Vertical wall of short cylinder part 52 ... Partition

Claims

A plurality of inlet drainage from the drain branch pipe flows, meet confluence basins comprise Masumoto body having an outlet portion for discharging the waste water into the waste water main pipe,
The inflow part is
A short cylinder part formed so as to protrude outward from the side wall part of the jar body , and a pipe connection part formed at the tip of the short cylinder part to which the drainage branch pipe is connected ,
The inner diameter of the drainage branch pipe connected to the pipe connection part and the short cylinder, with the diameter of the opening edge of the short cylinder part on the pipe connection part side being the same as or substantially the same as the inner diameter of the drainage branch pipe The inner surface of the tube portion is connected without a step, and the height difference is set so that the lowermost portion of the opening edge on the side wall portion side of the short tube portion is lower than the lowermost portion of the opening edge on the tube connection portion side. The confluence that I put on .

The tube bottom of the short tube portion is Ri Do a downward slope toward the side wall portion side from the pipe connecting portion, the lower portion of the side wall portion, the bottom wall portion serving as a downward slope toward the center forming is, in the center of the bottom wall portion, the outlet portion is Ru is formed, confluence of claim 1, wherein basins.

A merging gutter comprising a gutter body having a plurality of inflow portions,
The inflow part is
A short tube portion formed so as to protrude outward from the side wall portion of the heel body,
A vertical wall formed on both sides of the tube bottom of the short cylinder part , and
Including a pipe connecting part formed in the short cylinder part,
A junction rod in which the lowermost opening edge on the side wall portion side of the short cylindrical portion is located at a position lower than the lowermost opening edge on the pipe connecting portion side .

The merging gutter according to any one of claims 1 to 3, further comprising a partition that is provided in the gutter body and divides between the inflow portions.