JPH0816337B2 - Collective pipe fitting - Google Patents
Collective pipe fittingInfo
- Publication number
- JPH0816337B2 JPH0816337B2 JP1049215A JP4921589A JPH0816337B2 JP H0816337 B2 JPH0816337 B2 JP H0816337B2 JP 1049215 A JP1049215 A JP 1049215A JP 4921589 A JP4921589 A JP 4921589A JP H0816337 B2 JPH0816337 B2 JP H0816337B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- drainage
- water collecting
- diameter portion
- twisted
- 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 - Lifetime
Links
Landscapes
- Sink And Installation For Waste Water (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、中高層等の建築物に設けられた排水用立管
に接続されて使用される集合管継手に関し、さらに詳し
くは、排水管内の通気を確保することにより、排水トラ
ップによる封水効果が損なわれることを防止した集合管
継手に関する。Description: TECHNICAL FIELD The present invention relates to a collective pipe joint used by being connected to a drainage vertical pipe provided in a building such as a middle- and high-rise building, and more specifically, in a drainage pipe. The present invention relates to a collecting pipe joint that prevents the water sealing effect of a drain trap from being impaired by ensuring ventilation.
（従来の技術） 例えば、中高層建築物に取付けられる排水管は、従
来、第４図に示すように、各階層を通過するように鉛直
状に配設された立管20と、各階層に水平状に配設された
枝管70と、該立管20および該枝管70に接続される集合管
継手60とにより構成されている。(Prior Art) For example, as shown in FIG. 4, a drainage pipe attached to a middle- and high-rise building is conventionally a vertical pipe 20 vertically arranged so as to pass through each floor, and a horizontal pipe in each floor. It is composed of a branch pipe 70 arranged in a shape, and a collecting pipe joint 60 connected to the standing pipe 20 and the branch pipe 70.
従来の集合管継手60は、上方の立管20に接続される流
入筒65と、該流入筒65を通って排水が流入されるように
該流入筒65が内部に収容された大径部61と、該大径部61
の下端に連設されており、下端部が縮径された集水部62
とを有している。該集水部62の下端には下方の立管20が
接続されている。大径部61は円筒状をしており、該大径
部に連設される集水部62は、下部になるに連れて順次縮
径された円錐形状の漏斗状に形成されている。大径部61
の上部における相互に対向する位置には、それぞれが外
方へ突出するように一対の枝管接続部63および63が配設
されている。The conventional collecting pipe joint 60 includes an inflow pipe 65 connected to the upper standing pipe 20 and a large-diameter portion 61 in which the inflow pipe 65 is housed so that drainage flows through the inflow pipe 65. And the large diameter portion 61
The water collecting section 62 is connected to the lower end of the
And have. The lower standing pipe 20 is connected to the lower end of the water collecting portion 62. The large-diameter portion 61 has a cylindrical shape, and the water collecting portion 62 connected to the large-diameter portion is formed in a conical funnel shape in which the diameter is gradually reduced toward the lower portion. Large diameter part 61
A pair of branch pipe connecting portions 63 and 63 are arranged at positions facing each other in the upper part of the so as to project outward.
流入筒65から大径部61に流入した排水は、大径部61お
よび集水部62の内周面に沿って流下し、また、枝管70内
を通流する排水が枝管接続部63を介して大径部61内に流
入し、これらの排水が集水部62内にて集水される。この
ようにして集水部62内にて集められた排水は、集水部62
の下端の排水口62aを通過して下側の立管20内へ流入す
る。The wastewater flowing from the inflow cylinder 65 into the large diameter portion 61 flows down along the inner peripheral surfaces of the large diameter portion 61 and the water collecting portion 62, and the wastewater flowing through the branch pipe 70 is the branch pipe connecting portion 63. And flows into the large-diameter portion 61 through the water, and these wastewaters are collected in the water collecting portion 62. The wastewater collected in the water collecting section 62 in this way is collected in the water collecting section 62.
It passes through the drainage port 62a at the lower end and flows into the lower standing pipe 20.
このような構成の従来の集合管継手60は、立管20およ
び各枝管70から多量の排水が集中的に流入すると、この
排水が集水部62の下部内周面に衝突して跳ね返り、この
跳ね返った排水がその勢いにより排水口62a内に流下す
ることなく該排水口62aを越えて反対側の内周面に沿っ
て上昇するという現象が生じる。このため、一旦排水口
62aを越えて内周面を上昇する排水と、集水部62の内周
面を伝って流下した排水とが集水部62の下端部分で合流
して排水口62aを一次的に塞ぐおそれがある。In the conventional collecting pipe joint 60 having such a configuration, when a large amount of wastewater is intensively flowed in from the standing pipe 20 and each branch pipe 70, the wastewater collides with the lower inner peripheral surface of the water collecting portion 62 and bounces off, A phenomenon occurs in which the bounced drainage rises along the inner peripheral surface on the opposite side beyond the drainage port 62a without flowing down into the drainage port 62a due to its force. Therefore, once the drain port
There is a risk that the drainage that rises up the inner peripheral surface beyond 62a and the drainage that flows down along the inner peripheral surface of the water collecting portion 62 may merge at the lower end portion of the water collecting portion 62 to temporarily block the drainage port 62a. is there.
このように、集合管継手60の排水口62aが一時的に閉
塞されることにより、建築物内に配設され該集合管継手
60に接続されて連通状態になった立管20および枝管70等
により構成された排水管が、排水によって一時的に閉塞
されることになり、そのために、該排水管内の空気層が
上下で連通しなくなる。そして、このような状態で、集
合管継手60における集水部62内の排水が流下すると、該
集合管継手60の上流側における排水管内が一次的に負圧
となる。その結果、各枝管70に接続されている各種衛生
厨房機器類のトラップが破水し、排水管内の悪臭が各室
内等に逆流するおそれがある。また、立管20を流下する
排水が管壁に沿って下方に流下すると水流が速くなり、
最下階の排水管の曲り部においてジャンピング現象を起
こして管を閉塞するおそれがある。これによっても立管
20内が負圧になって、トラップが破水するおそれがあ
る。In this way, the drainage port 62a of the collecting pipe joint 60 is temporarily closed, so that the collecting pipe joint 60 is disposed in the building.
The drain pipe constituted by the standing pipe 20 and the branch pipe 70 which are connected to 60 and are in communication with each other is temporarily blocked by the drainage, and therefore the air layer in the drain pipe is vertically Communication will be lost. Then, in such a state, when the drainage in the water collecting portion 62 of the collecting pipe joint 60 flows down, the inside of the drainage pipe on the upstream side of the collecting pipe joint 60 becomes a negative pressure temporarily. As a result, the traps of various sanitary kitchen devices connected to the branch pipes 70 may be broken, and the malodor in the drain pipe may flow back into each room or the like. Also, when the drainage flowing down the vertical pipe 20 flows downward along the pipe wall, the water flow becomes faster,
There is a risk of causing a jumping phenomenon at the bent part of the drainage pipe on the bottom floor to block the pipe. This also stands
There is a risk that the pressure inside 20 will become negative and the trap will break.
このような問題を解決するために、従来から、内部を
流下する排水に旋回流を発生させることにより、集水部
における排水口で排水が閉塞されないようにすると共
に、排水流の鉛直方向流下速度を減速することによって
も排水口が閉塞されないようにした種々の通気構造を有
する集合管継手が提案されている。例えば、特公昭53−
32614号公報、特公昭57−49798号公報、特開昭62−2887
95号公報には、流入筒の下部内面に螺旋状の羽根体を突
設した集合管継手が提案されており、このような集合管
継手では、立管から流入筒内に流入する排水は、この流
入筒内に配設された羽根体の作用により旋回流となって
排水口から流出するため、該排水口が排水により閉塞さ
れることが防止される。In order to solve such a problem, conventionally, a swirl flow is generated in the drainage flowing down inside so that the drainage is not blocked by the drainage port in the water collecting part, and the vertical flow velocity of the drainage flow is also reduced. There has been proposed a collecting pipe joint having various ventilation structures in which the drainage port is not blocked even by decelerating. For example, Japanese Patent Publication Sho 53-
32614, Japanese Patent Publication No. 57-49798, JP 62-2887
In Japanese Patent Publication No. 95, a collecting pipe joint in which a spiral blade is projectingly provided on the lower inner surface of the inflow cylinder is proposed, and in such a collecting pipe joint, drainage flowing from the standing pipe into the inflow cylinder is By the action of the blades arranged in the inflow cylinder, a swirling flow is formed to flow out from the drain port, so that the drain port is prevented from being blocked by drainage.
（発明が解決しようとする課題） しかしながら、流入筒内に羽根体を配設する構成であ
れば、羽根体が流入筒の内面より突出しているために、
この羽根体に、排水に含まれる塵や繊維屑等が引っ掛か
って堆積し、流入筒がそれらの繊維屑等で詰まるおそれ
がある。また、排水が羽根体に勢い良く当たるために，
ここで衝撃音が発生するという欠点もある。さらに、流
入筒の内面に複雑な形状の羽根体を設ける必要があるの
で、製造が容易でなく経済性を損なうという欠点があ
る。(Problem to be Solved by the Invention) However, if the blade body is arranged in the inflow cylinder, since the blade body protrudes from the inner surface of the inflow cylinder,
Dust, fiber dust, and the like contained in the drainage may be caught and accumulated on the blade body, and the inflow cylinder may be clogged with the fiber dust and the like. Also, in order for the drainage to hit the blades vigorously,
There is also a drawback that an impact sound is generated here. Furthermore, since it is necessary to provide a blade body having a complicated shape on the inner surface of the inflow cylinder, there is a drawback that the manufacturing is not easy and the economical efficiency is impaired.
本発明は上記従来の問題を解決するものであり、その
目的とするところは、接続される立管や枝管等の排水管
内に大きい負圧が生じることを防ぐことにより、排水ト
ラップの封水効果が損なわれることを防止できると共
に、繊維屑等が内部に詰まるおそれのない集合管継手を
提供することにある。本発明の他の目的は、内部を通流
する排水による騒音を低減させることができ、また製造
が容易であるために比較的安価に製作することができる
集合管継手を提供することにある。The present invention solves the above-mentioned conventional problems, and an object of the present invention is to prevent a large negative pressure from being generated in a drain pipe such as a vertical pipe or a branch pipe to be connected, thereby sealing a drain trap. An object of the present invention is to provide a collecting pipe joint that can prevent the effects from being impaired and that is free from the possibility of clogging of fiber scraps and the like. Another object of the present invention is to provide a collecting pipe joint which can reduce noise due to drainage flowing through the inside and can be manufactured at a relatively low cost because it is easy to manufacture.
（課題を解決するための手段） 本発明の集合管継手は、鉛直状に配設された立管およ
び水平状に配設された枝管にそれぞれ接続される集合管
継手であって、該枝管が接続される枝管接続部が設けら
れた大径部と、該立管に接続されて該立管を通流する排
水が該大径部内に流入されるように該大径部内に下部が
収容されており、該大径部内に収容された下部の断面が
上下方向に沿って順次周方向に捻られた多角形状の流入
筒と、該大径部の下端に連設されており、下端部が縮径
され、上下方向に沿って順次前記流入筒の捻り方向と同
一方向に捻られた多角形状とされるか、または、内面に
前記流入筒の捻り方向と同一周方向に捻られた状態の羽
根体が配設された集水部と、を有してなり、そのことに
より上記目的が達成される。(Means for Solving the Problem) A collecting pipe joint of the present invention is a collecting pipe joint connected to a vertically arranged standing pipe and a horizontally arranged branch pipe, respectively. A large diameter portion provided with a branch pipe connecting portion to which a pipe is connected, and a lower portion inside the large diameter portion so that drainage that is connected to the standing pipe and flows through the standing pipe flows into the large diameter portion. Is accommodated, and the cross section of the lower part accommodated in the large diameter portion is connected to the lower end of the large diameter portion, and the polygonal inflow cylinder that is sequentially twisted in the circumferential direction along the vertical direction. The lower end portion has a reduced diameter and is formed in a polygonal shape in which it is twisted in the same direction as the inflow cylinder in the vertical direction, or is twisted on the inner surface in the same circumferential direction as the inflow cylinder. And a water collecting portion in which the blade body in the opened state is disposed, thereby achieving the above object.
（作用） 本発明の集合管継手は、流入筒の内面の横断面形状が
多角形であり、しかも下部になるに連れて順次周方向に
捻られているため、該流入筒の各側面は螺旋状に湾曲し
ている。従って、立管から該流入筒に流入する排水は、
該流入筒の螺旋状に湾曲した内面に沿って流下し、各側
面の鉛直下方にて斜めに交差して軸芯方向に対して順次
周方向へ捻られた螺旋状の各コーナー部に集中する。こ
れにより、コーナー部に沿って流下する排水には旋回力
が付与され該排水は旋回流となって大径部および集水部
の内周面に沿って流下する。更に、集水部には、少なく
とも、上下方向に沿って順次前記流入筒の捻り方向と同
一方向に捻られた多角形状とされるか、又は、内面に前
記流入筒の捻り方向と同一周方向に捻られた状態の羽根
体が配設されているので、集水部にて集水される排水も
旋回流となり、軸心部に空気心が形成されて該集水部の
排水口を閉塞することなく該排水口から流出する。(Operation) In the collecting pipe joint of the present invention, the inner surface of the inflow cylinder has a polygonal cross-sectional shape, and is further twisted in the circumferential direction sequentially toward the lower part, so that each side surface of the inflow cylinder is spiral. Curved in a shape. Therefore, the drainage flowing from the vertical pipe into the inflow tube is
It flows down along the spirally curved inner surface of the inflow cylinder, and diagonally intersects vertically below each side surface and concentrates on each spiral corner portion that is sequentially twisted in the circumferential direction with respect to the axial direction. . As a result, a swirling force is applied to the drainage flowing down along the corner portion, and the drainage becomes a swirling flow and flows down along the inner peripheral surfaces of the large diameter portion and the water collecting portion. Further, the water collecting portion has at least a polygonal shape which is sequentially twisted in the same direction as the inflow cylinder along the vertical direction, or has an inner surface in the same circumferential direction as the inflow cylinder. Since the blade body is twisted to the outside, the drainage collected in the water collecting part also becomes a swirling flow, and the air core is formed in the axial center part to block the drainage port of the water collecting part. Flows out of the drain without doing so.
（実施例） 以下に本発明の実施例を図面を用いて詳細に説明す
る。(Example) Hereinafter, the Example of this invention is described in detail using drawing.
第１図（Ａ）〜（Ｆ）に示すように、本発明の第１実
施例の集合管継手30は、建築物内に鉛直状に配設される
立管に接続されて該立管から排水が流入される流入筒33
と、該流入筒33の下部が内部に収容されて一対の枝管接
続部34および34が設けられた円筒状の大径部31と、該大
径部31の下端に一体的に連設されており、下端部が順次
縮径された円錐台状の集水部32とを有している。As shown in FIGS. 1 (A) to 1 (F), the collecting pipe joint 30 of the first embodiment of the present invention is connected to a vertical pipe vertically arranged in a building and is connected to the vertical pipe. Inlet pipe 33 into which waste water flows
And a cylindrical large-diameter portion 31 in which the lower part of the inflow cylinder 33 is housed inside and provided with a pair of branch pipe connecting portions 34 and 34, and is integrally connected to the lower end of the large-diameter portion 31. The water collecting section 32 has a circular truncated cone shape whose lower end is successively reduced in diameter.
大径部31は、円筒状の側面部31bと該側面部31bの上端
面を覆う上面部31aとを有しており、側面部31bは、相互
に相対してそれぞれ水平状に外方へ突出する一対の枝管
接続部34および34が配設されている。各枝管接続部34に
は、建築物内に水平状に配設される図示しない枝管がそ
れぞれ接続される。大径部31の上面部31aの中央には、
貫通孔31cが形成されており、この貫通孔31cに流入筒33
が嵌合されている。該流入筒33の下部33aは、大径部31
内に収容されており、上部33bは大径部31の上面部31a上
方に位置している。The large-diameter portion 31 has a cylindrical side surface portion 31b and an upper surface portion 31a that covers an upper end surface of the side surface portion 31b, and the side surface portions 31b respectively project horizontally outwards relative to each other. A pair of branch pipe connecting portions 34 and 34 are provided. A branch pipe (not shown) horizontally arranged in the building is connected to each branch pipe connection portion 34. In the center of the upper surface portion 31a of the large diameter portion 31,
A through hole 31c is formed, and the inflow cylinder 33 is inserted into the through hole 31c.
Are fitted. The lower portion 33a of the inflow cylinder 33 has a large diameter portion 31
It is housed inside, and the upper portion 33b is located above the upper surface portion 31a of the large diameter portion 31.
大径部31の下端には円錐台漏斗状をした集水部32が連
設されており、該集水部32の下端部には排水口32aが形
成さている。そして、該排水口32aの下端に、立管が接
続される。A frustoconical funnel-shaped water collecting portion 32 is connected to the lower end of the large diameter portion 31, and a drain port 32a is formed at the lower end of the water collecting portion 32. A vertical pipe is connected to the lower end of the drainage port 32a.
本実施例の重合管継手において、流入筒33は、断面が
四角形状であって、大径部31内に収容された下部33aが
下側になるに連れて徐々に周方向に捻られている。本実
施例では、流入筒33の下部33aにおける下端は上端に対
して90度程度捻られている。また、本実施例では、大径
部31の下側に連設された集水部32が、断面六角形状をし
ており、下側になるに連れて徐々に縮径されるように、
六つの各側面32bの幅寸法が下側になるに連れて徐々に
小さくなっている。しかも、該集水部32は、下側になる
に連れて徐々に周方向に捻られており、各側面32bが螺
旋状に湾曲している。各側面32b間のコーナー部32cは、
該集水部32の軸心に対して捻れた状態の直線状になって
いる。そして、各コーナー部32cにおける一つ置きに、
羽根体32dが各コーナー部32cに沿ってそれぞれ取り付け
られている。各羽根体32dは、集水部32の上端では、該
集水部32内に突出しており、その突出側先端は、該集水
部32の下端では、排水口32aの内面とは面一になるよう
に、その突出量が下側になるに連れて徐々に減少した直
線状になっている。従って、各羽根体32dは、全体が排
水口32a周縁部からは内方へは突出していない。In the polymerization pipe joint of the present embodiment, the inflow cylinder 33 has a quadrangular cross section, and is gradually twisted in the circumferential direction as the lower portion 33a accommodated in the large diameter portion 31 becomes lower. . In this embodiment, the lower end of the lower portion 33a of the inflow cylinder 33 is twisted about 90 degrees with respect to the upper end. Further, in the present embodiment, the water collecting portion 32 continuously provided on the lower side of the large diameter portion 31 has a hexagonal cross section, and the diameter is gradually reduced toward the lower side,
The width of each of the six side surfaces 32b is gradually reduced as it goes downward. Moreover, the water collecting portion 32 is gradually twisted in the circumferential direction as it goes downward, and each side surface 32b is curved in a spiral shape. The corner portion 32c between each side surface 32b is
The water collecting portion 32 has a linear shape that is twisted with respect to the axis. And every other one in each corner 32c,
The blade body 32d is attached along each corner portion 32c. Each blade 32d projects into the water collecting portion 32 at the upper end of the water collecting portion 32, and the tip of the protruding side is flush with the inner surface of the drainage port 32a at the lower end of the water collecting portion 32. As is apparent from the above, the protruding amount is a linear shape that gradually decreases as it goes downward. Therefore, the entire blade body 32d does not protrude inward from the peripheral portion of the drainage port 32a.
上下方向で捻られた状態の集水部32における、上端と
下端との捻れ角度は、限定されるものではないが、例え
ば、30〜120度程度に設定することができ、この実施例
では、第１図（Ｄ）に示すように、60度程度捻られてい
る。In the water collecting portion 32 in a state of being twisted in the vertical direction, the twist angle between the upper end and the lower end is not limited, but for example, it can be set to about 30 to 120 degrees, and in this embodiment, As shown in FIG. 1 (D), it is twisted by about 60 degrees.
本実施例の集合管継手においては、流入筒33内に流入
する排水が、螺旋状に旋回された状態で集水部32内へ流
入される。集水部32内に流入した旋回状態の排水は、断
面が六角形状であって、下側になるに連れて徐々に捻ら
れた状態の該集水部32における各側面32bに案内され
て、一層旋回され、該集水部32内を軸心部に空気心が形
成された状態で排水口32aから排出される。このとき、
各側面32bに案内される排水は、所定のコーナー部32cに
配設された羽根体32dに案内されるため、さらに強力に
旋回力が付与される。各羽根体32dは、遠心力により外
方へ広がろうとする排水をある程度規制し、排水を乱れ
ることなく確実に旋回させる。In the collecting pipe joint of the present embodiment, the drainage flowing into the inflow cylinder 33 flows into the water collecting portion 32 in a spirally swirled state. The swirling drainage that has flowed into the water collecting portion 32 has a hexagonal cross section, and is guided to each side surface 32b of the water collecting portion 32 that is gradually twisted as it goes downward, It is further swirled, and is discharged from the drainage port 32a in a state where an air core is formed around the water collecting portion 32 with the axial center portion. At this time,
The drainage guided to each side surface 32b is guided to the blade body 32d arranged at the predetermined corner portion 32c, so that the turning force is further strongly imparted. Each blade 32d regulates to some extent the drainage that tends to spread outward due to centrifugal force, and reliably swirls the drainage without disturbing it.
また、枝管が接続された各枝管接続部34から流入した
排水が集水部32内に流入すると、該排水は、流入筒33内
を通って旋回流となった排水とともに、集水部32におけ
る各側面32bおよび各羽根体33dにより旋回力が付与され
て集水され、軸心部に空気心が形成された旋回状態で排
水口32aから排出される。Further, when the wastewater flowing in from each branch pipe connecting portion 34 to which the branch pipe is connected flows into the water collecting portion 32, the wastewater passes through the inside of the inflow tube 33 and becomes a swirling flow, and the water collecting portion. A swirling force is applied by the side surfaces 32b and the blades 33d in the water 32 to collect water, and the water is discharged from the drain port 32a in a swirling state in which an air core is formed in the axial center portion.
なお、本実施例の集合管継手では、集水部33の断面形
状を多角形状として、上下方向で徐々に周方向に捻った
構成にするとともに、内部に羽根体32dを配設する構成
としたが、いずれか一方のみを有する構成、例えば、集
水部の断面形状を上下方向で徐々に捻られた多角形状と
して、羽根体を配設しない構成、あるいは、集水部の断
面形状を円形状または上下方向で捻られていない多角形
状として、内面に、該集水部の軸心に対して捻れた状態
の羽根体を配設する構成としてもよい。In the collecting pipe joint of the present embodiment, the cross-sectional shape of the water collecting portion 33 is a polygonal shape, and is configured to be gradually twisted in the circumferential direction in the vertical direction, and the blade body 32d is arranged inside. However, a configuration having only one of them, for example, the cross-sectional shape of the water collecting portion is a polygonal shape that is gradually twisted in the vertical direction, the blade body is not provided, or the cross-sectional shape of the water collecting portion is circular. Alternatively, a polygonal shape that is not twisted in the vertical direction may be used, and a blade body that is twisted with respect to the axis of the water collecting portion may be provided on the inner surface.
このような集合管継手30は、例えば、ポリ塩化ビニル
（PVC）、繊維強化プラスチック（FRP）、鋳鉄等により
製造され、流入筒33と上側の立管、集水部32と下側の立
管とがフランジ結合によりあるいはゴムパッキン結合に
より結合される。また、各枝管接続部34と枝管もフラン
ジ結合あるいはゴムパッキン結合により連結される。な
お、流入筒43の横断面形状は、三角形あるいは五〜十角
形等に形成することもできる。Such a collecting pipe joint 30 is made of, for example, polyvinyl chloride (PVC), fiber reinforced plastic (FRP), cast iron, etc., and has an inflow pipe 33 and an upper pipe, and a water collecting part 32 and a lower pipe. And are connected by flange connection or rubber packing connection. Further, each branch pipe connection portion 34 and the branch pipe are also connected by flange connection or rubber packing connection. The cross-sectional shape of the inflow cylinder 43 can also be formed in a triangular shape or a pentagonal to decagonal shape.
第２図（Ａ）〜（Ｆ）は、本発明の集合管継手の第２
実施例を示すものであり、本実施例では、第１実施例と
同様の大径部41、集水部42、枝管接続部44を有してお
り、従って、該集水部42は、上下方向に沿って順次周方
向に捻れた多角形状をしており、所定のコーナー部42c
に羽根体42dが配設されている。本実施例では、流入筒4
3は、第１および第２実施例の流入筒13および33と同様
に、上下方向に沿って順次周方向に捻られた多角形状を
しており、しかも、該流入筒43の下部43aが下端側にな
るに連れて徐々に拡径されている。該流入筒43の下端
は、辺長において該流入筒43の拡径されていない部分の
1.1〜2.0倍程度に拡径されていることが好ましい。2 (A) to 2 (F) show the second part of the collecting pipe joint of the present invention.
It shows an embodiment, and in this embodiment, it has a large-diameter portion 41, a water collecting portion 42, and a branch pipe connecting portion 44 similar to those in the first embodiment. Therefore, the water collecting portion 42, It has a polygonal shape that is twisted in the circumferential direction sequentially along the up-down direction, and has a predetermined corner portion 42c.
The blade body 42d is disposed in the. In this embodiment, the inflow tube 4
Similar to the inflow cylinders 13 and 33 of the first and second embodiments, 3 has a polygonal shape that is sequentially twisted in the circumferential direction along the vertical direction, and the lower portion 43a of the inflow cylinder 43 has a lower end. The diameter gradually increases as it approaches the side. The lower end of the inflow cylinder 43 is a portion of the side length that is not expanded in the inflow cylinder 43.
It is preferable that the diameter is increased to about 1.1 to 2.0 times.
このように、流入筒43の下端部を拡径することによ
り、該流入筒43内を通流して旋回流となった排水は、該
流入筒43の下端から外方へ広がるように流出するため、
旋回流となった排水は、集水部42の内面へと拡散され、
該集水部42の各側面および羽根体43dにより一層確実に
旋回力が付与される。In this way, by expanding the diameter of the lower end portion of the inflow cylinder 43, the drainage flowing through the inflow cylinder 43 into a swirling flow flows out from the lower end of the inflow cylinder 43 so as to spread outward. ,
The swirling drainage is diffused to the inner surface of the water collection section 42,
The swirling force is more reliably imparted by the side surfaces of the water collecting portion 42 and the blade body 43d.
本実施例の場合にも、集水部42は、断面が上下方向に
沿って順次集方向に捻られた多角形状とする構成、ある
いは内面に羽根体のみを配設する構成のいずれか一方で
あってもよい。Also in the case of the present embodiment, the water collecting portion 42 has either a configuration in which the cross section has a polygonal shape twisted in the vertical direction sequentially in the vertical direction, or a configuration in which only the blade body is provided on the inner surface. It may be.
この第２実施例では、第３図に示すように、流入筒43
の拡径された部分における各側面間のコーナー部に沿っ
て羽根体43dをそれぞれ配設する構成としてもよい。こ
のような構成とすれば、各羽根体43dにより、流入筒43
から流出する排水は、一層強力に旋回力が付与されて、
集水部42内周面へ向かって拡散された状態になる。そし
て、該集水部42内面に沿って流下する間に、さらに旋回
力が付与される。In this second embodiment, as shown in FIG.
The blade bodies 43d may be arranged along the corners between the respective side surfaces in the expanded diameter portion. With such a configuration, the inflow cylinder 43 can be
The drainage flowing out of the pipe is given a stronger turning force,
The water is diffused toward the inner peripheral surface of the water collecting portion 42. Then, while flowing down along the inner surface of the water collecting portion 42, a turning force is further applied.
各羽根体43dは、流入筒43に接続される立管の内径よ
りも内方へ突出しないように、その突出量が設定され、
下側になるに連れてその突出量が徐々に大きくなるよう
に、突出側先端が略鉛直状になっている。The amount of protrusion of each blade 43d is set so as not to protrude inward from the inner diameter of the standing pipe connected to the inflow cylinder 43,
The tip of the projecting side is substantially vertical so that the projecting amount gradually increases toward the lower side.
上記各実施例では、流入筒内面もしくは集水部内面に
設けられた羽根体は、いずれも流入筒に接続される立管
の内径もしくは集水部に接続される立管の内径よりも内
方に突出しないものであるので、排水中のゴミ等により
目詰まりを起こすおそれが小さく、また、たとえ、目詰
まりが発生しても容易に解消し得る。In each of the above-mentioned embodiments, the blade body provided on the inner surface of the inflow cylinder or the inner surface of the water collecting portion is located inside the inner diameter of the standing pipe connected to the inflow cylinder or the inner diameter of the standing pipe connected to the water collecting portion. Since it does not stick out, the possibility of clogging due to dust in the drainage is small, and even if clogging occurs, it can be easily eliminated.
（発明の効果） 本発明の集合管継手は、このように、立管から流入管
内に流入した排水は、旋回流となって大径部および集水
部内へと流下するので、該排水は軸心部に空気心を形成
するとともに、その慣性を維持した状態で流出する。従
って、該排水は鉛直方向の流速が低下されると共に、該
集合管継手の上下に接続される各立管内に相互に連通す
る空気の芯を形成することができる。その結果、衛生厨
房排水機器等から多量の排水が該集合管継手内に集中的
に流入した場合でも、排水管内の軸心部に空気が常時、
連通しているため、排水管内の空気圧力の変動を低減で
きてトラップ破水を確実に防止することができる。(Effects of the Invention) In the collecting pipe joint of the present invention, the drainage flowing from the standpipe into the inflow pipe thus becomes a swirling flow and flows down into the large-diameter portion and the water collecting portion. An air core is formed in the core part and flows out while maintaining its inertia. Therefore, the flow velocity of the drainage is reduced in the vertical direction, and air cores that communicate with each other can be formed in each of the standing pipes that are connected above and below the collecting pipe joint. As a result, even when a large amount of wastewater from the sanitary kitchen drainage equipment and the like intensively flows into the collecting pipe joint, air is always present in the axial center of the drainage pipe,
Since they are communicated with each other, the fluctuation of the air pressure in the drainage pipe can be reduced and the breakage of the trap can be reliably prevented.
第１図（Ａ）は本発明の集合管継手の第１実施例を示す
断面図、第１図（Ｂ）、（Ｃ）、（Ｄ）、（Ｅ）はそれ
ぞれ第１図（Ａ）のＢ−Ｂ線、Ｃ−Ｃ線、Ｄ−Ｄ線、Ｅ
−Ｅ線における断面図、第１図（Ｆ）はその動作説明の
ための斜視図、第２図（Ａ）は本発明の集合管継手の第
２実施例を示す断面図、第２図（Ｂ）、（Ｃ）、
（Ｄ）、（Ｅ）それぞれ第２図（Ａ）のＢ−Ｂ線、Ｃ−
Ｃ線、Ｄ−Ｄ線、Ｅ−Ｅ線における断面図、第２図
（Ｆ）はその動作説明のための斜視図、第３図は本発明
の集合管継手のさらに他の実施例を示す断面図、第４図
は従来の集合管継手の断面図である。 30、40…集合管継手、31、41…大径部、32、42…集水
部、33、43…流入筒、34、44…枝管接続部、32d、42d…
羽根体。FIG. 1 (A) is a cross-sectional view showing a first embodiment of the collecting pipe joint of the present invention, and FIGS. 1 (B), (C), (D) and (E) are respectively those of FIG. 1 (A). BB line, CC line, DD line, E
-E is a cross-sectional view, FIG. 1 (F) is a perspective view for explaining the operation, FIG. 2 (A) is a cross-sectional view showing a second embodiment of the collecting pipe joint of the present invention, and FIG. B), (C),
(D), (E) BB line and C- of FIG. 2 (A), respectively.
Sectional views taken along lines C, D-D, and E-E, FIG. 2 (F) is a perspective view for explaining the operation thereof, and FIG. 3 is a further embodiment of the collecting pipe joint of the present invention. FIG. 4 is a sectional view of a conventional collecting pipe joint. 30, 40 ... Collecting pipe joint, 31, 41 ... Large diameter part, 32, 42 ... Water collecting part, 33, 43 ... Inflow tube, 34, 44 ... Branch pipe connecting part, 32d, 42d ...
Feather body.
Claims (1)
設された枝管にそれぞれ接続される集合管継手であっ
て、 該枝管が接続される枝管接続部が設けられた大径部と、 該立管に接続されて該立管を通流する排水が該大径部に
流入されるように該大径部内に下部が収容されており、
該大径部内に収容された下部の断面が上下方向に沿って
順次周方向に捻られた多角形状の流入筒と、 該大径部の下端に連設されており、下端部が縮径され、
上下方向に沿って順次前記流入筒の捻り方向と同一周方
向に捻られた多角形状とされるか、または、内面に前記
流入筒の捻り方向と同一周方向に捻られた状態の羽根体
が配設された集水部と、 を有する集合管継手。1. A collecting pipe joint, which is connected to a vertically arranged vertical pipe and a horizontally arranged branch pipe, respectively, wherein a branch pipe connecting portion to which the branch pipe is connected is provided. And a large diameter portion, and a lower portion is accommodated in the large diameter portion so that drainage that is connected to the standing pipe and flows through the standing pipe flows into the large diameter portion.
A cross-section of the lower part housed in the large-diameter portion is sequentially connected to the lower end of the large-diameter portion and a polygonal inflow tube whose circumferential direction is twisted in the circumferential direction in the vertical direction. ,
The blade body is formed in a polygonal shape that is sequentially twisted in the same circumferential direction as the twist direction of the inflow cylinder along the up-down direction, or has a blade body that is twisted in the same circumferential direction as the twist direction of the inflow cylinder on the inner surface. A collecting pipe joint having:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1049215A JPH0816337B2 (en) | 1988-03-01 | 1989-02-28 | Collective pipe fitting |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63-48378 | 1988-03-01 | ||
| JP4837888 | 1988-03-01 | ||
| JP1049215A JPH0816337B2 (en) | 1988-03-01 | 1989-02-28 | Collective pipe fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH028427A JPH028427A (en) | 1990-01-11 |
| JPH0816337B2 true JPH0816337B2 (en) | 1996-02-21 |
Family
ID=26388627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1049215A Expired - Lifetime JPH0816337B2 (en) | 1988-03-01 | 1989-02-28 | Collective pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0816337B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08209762A (en) * | 1989-12-15 | 1996-08-13 | Noriatsu Kojima | Vertical drain pipe joint |
| JPH0692666B2 (en) * | 1989-12-15 | 1994-11-16 | 徳厚 小島 | Drainage stack fitting |
| CN113323084A (en) * | 2021-05-27 | 2021-08-31 | 宁波城市职业技术学院 | Deodorant sealed drain pipe |
| CN114150736B (en) * | 2021-11-23 | 2024-02-02 | 上海红点卫浴科技有限公司 | Assembled same-layer drainage collector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63243587A (en) * | 1987-03-30 | 1988-10-11 | 東亜高級継手バルブ製造株式会社 | Drain pipe |
-
1989
- 1989-02-28 JP JP1049215A patent/JPH0816337B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH028427A (en) | 1990-01-11 |
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