JP5117043B2 - Rainwater flow facilitator for vertical pipes - Google Patents

Rainwater flow facilitator for vertical pipes Download PDF

Info

Publication number
JP5117043B2
JP5117043B2 JP2006336782A JP2006336782A JP5117043B2 JP 5117043 B2 JP5117043 B2 JP 5117043B2 JP 2006336782 A JP2006336782 A JP 2006336782A JP 2006336782 A JP2006336782 A JP 2006336782A JP 5117043 B2 JP5117043 B2 JP 5117043B2
Authority
JP
Japan
Prior art keywords
pipe
rainwater
pipe joint
funnel
outlet
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
Application number
JP2006336782A
Other languages
Japanese (ja)
Other versions
JP2008150785A (en
Inventor
正和 小林
Original Assignee
カネソウ株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by カネソウ株式会社 filed Critical カネソウ株式会社
Priority to JP2006336782A priority Critical patent/JP5117043B2/en
Publication of JP2008150785A publication Critical patent/JP2008150785A/en
Application granted granted Critical
Publication of JP5117043B2 publication Critical patent/JP5117043B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Sink And Installation For Waste Water (AREA)

Description

本発明は、雨水を流下させて排水に供せられる縦樋管にあって、特に豪雨時における雨水の流下を促進し得る装置に関する。   The present invention relates to a vertical pipe that allows rainwater to flow down for use in drainage, and particularly to an apparatus that can promote the flow of rainwater during heavy rain.

一般に、多階層住宅等の建物に設置される縦樋管は、管継手と、該管継手を介して上下方向に接続された所定長さの管体とからなり、建物の壁面等に固定されて、屋上及び各階のバルコニー等に配設されたルーフドレインから流入する雨水を流下させて地上の排水溝等に排水し得るように構成されている。   In general, a vertical pipe installed in a building such as a multi-story house is composed of a pipe joint and a pipe body having a predetermined length connected in the vertical direction via the pipe joint, and is fixed to a wall surface of the building. The rainwater flowing in from the roof drain disposed on the rooftop and the balcony of each floor is allowed to flow down and drain into the ground drainage groove or the like.

ところで、建物の屋上面にはルーフドレインに向けて下方傾斜する排水用勾配が設けられており、豪雨時に屋上面上の雨水が前記排水用勾配によってルーフドレインに短時間で集中すると、排水しきれない雨水がルーフドレイン付近に溜まり易い。そして、従来構成の縦樋管にあっては、ルーフドレイン付近に溜まる雨水の水深が７０mmを越すような豪雨になると、大量の雨水が空気を巻き込んで縦樋管内に流入するため、該縦樋管内での激しい乱流によって雨水と空気とが混じり合って多量の気泡が発生して、雨水の体積及び管内圧力が増加するとともに、細かい気泡が合体して空気の塊となって上方に浮き上がって雨水を押し戻す作用が生じることにより、雨水の流下が妨げられて流れが悪くなるという問題点があった。   By the way, the roof surface of the building is provided with a slope for draining that slopes downward toward the roof drain.If rainwater on the roof top surface concentrates on the roof drain during a heavy rain due to the slope for drainage, the drainage can be completely drained. No rainwater tends to collect near the roof drain. In the case of a vertical pipe having a conventional configuration, when heavy rain such that the depth of rainwater collected near the roof drain exceeds 70 mm, a large amount of rainwater entrains air and flows into the vertical pipe. The turbulent flow in the pipe mixes rainwater and air, generating a large amount of bubbles, increasing the volume of rainwater and the pressure in the pipe, and the fine bubbles coalesce and float upward as a mass of air. As a result of the action of pushing back rainwater, the flow of rainwater is hindered and the flow becomes worse.

本発明は、かかる問題点を解消し得る縦樋管における雨水流下促進装置を提供することを目的とするものである。   The object of the present invention is to provide a rainwater flow facilitating device in a downpipe that can eliminate such problems.

本発明は、上部管体の下端部と下部管体の上端部とが管継手を介して上下方向に接続されてなり、雨水を流下させて排水に供せられる縦樋管において、前記管継手に、上端を上部管体の内径と略等しい導入口とし、下端を下部管体の内径より小径の導出口とする漏斗状部が、その導出口を下部管体と同心状で、かつ雨水が導出口からのみ流下するようにして、該導出口から排出される雨水直下流の周囲に筒状通気領域が形成されるように設けられる一方、前記筒状通気領域の周囲に位置させて、管継手または下部管体に前記筒状通気領域と外部とを連通する通気口が開口されていることを特徴とする縦樋管における雨水流下促進装置である。
The present invention provides a vertical pipe in which a lower end portion of an upper tubular body and an upper end portion of a lower tubular body are connected in a vertical direction via a pipe joint, and rainwater is allowed to flow down for use in drainage. In addition, a funnel-shaped part with an upper end that is substantially equal to the inner diameter of the upper tubular body and a lower end that is smaller than the inner diameter of the lower tubular body, the outlet is concentric with the lower tubular body, and rainwater A tubular ventilation region is formed so as to flow only from the outlet , so that a cylindrical ventilation region is formed around the downstream of the rainwater discharged from the outlet. A rainwater flow facilitating device for a vertical pipe, wherein a vent opening that connects the tubular vent region and the outside is opened in a joint or a lower pipe body.

ここで、前記通気口は、できるだけ漏斗状部に近接する位置、即ち、漏斗状部の外側近傍位置に開口することが好ましい。また、前記構成中の雨水直下流とは、まっすぐ下に落ちる雨水流を意味し、漏斗状部の導出口から勢いよく真下に排出される円柱状の雨水流である。また、前記上部管体（または下部管体）とは、管継手に対する管体の相対的位置に基づいて管体を呼称したものであり、前記下部管体の下端部がさらに他の管継手を介して管体に接続される場合には、該下部管体が他の管継手に対する上部管体となる。   Here, it is preferable that the vent be opened at a position as close to the funnel-shaped portion as possible, that is, at a position near the outside of the funnel-shaped portion. Further, the term “directly downstream of rainwater” in the above configuration means a rainwater flow that falls straight down, and is a columnar rainwater flow that is discharged from the outlet of the funnel portion. The upper tubular body (or lower tubular body) refers to a tubular body based on the relative position of the tubular body with respect to the tubular joint, and the lower end portion of the lower tubular body further includes another tubular joint. When connected to a pipe body via the lower pipe body, the lower pipe body becomes an upper pipe body for another pipe joint.

前記雨水流下促進装置にあって、漏斗状部が、管継手と一体形成されている構成が提案される。   In the rainwater flow facilitating device, a configuration is proposed in which the funnel-shaped portion is integrally formed with the pipe joint.

また、漏斗状部が、管継手と別体形成されたテーパ管部と、該テーパ管部の上端に外方突成された係合鍔部とからなり、該係合鍔部を管継手内に形成された係止段部に係合することによって、管継手内に保持されている構成が提案される。   The funnel-shaped portion includes a tapered tube portion formed separately from the pipe joint, and an engagement flange portion protruding outward from the upper end of the taper tube portion. The structure currently hold | maintained in a pipe joint is proposed by engaging the latching step part formed in this.

本発明は、上述したように、上部管体の下端部と下部管体の上端部とを接続する管継手に、上端を上部管体の内径と略等しい導入口とし、下端を下部管体の内径より小径の導出口とする漏斗状部が、その導出口を下部管体と同心状で、かつ該導出口から排出される雨水直下流の周囲に筒状通気領域が形成されるように設けられる一方、前記筒状通気領域の周囲に位置させて、管継手または下部管体に前記筒状通気領域と外部とを連通する通気口が開口されているので、豪雨時に、上部管体から管継手を通って流下する大量の雨水が、該管継手に設けられた漏斗状部の導出口から雨水直下流となって排出されると、その雨水直下流の周囲に筒状通気領域が形成されることにより、下部管体内で発生した気泡が合体して生じる空気の塊が前記筒状通気領域を介して通気口から外部に排出されて、管内圧力の増加が抑止されるとともに、下部管体内で空気の塊が上方に浮き上がることに起因する雨水の押し戻し作用が防止される。また、雨水が漏斗状部の導出口から雨水直下流となって下部管体内に流入するため、その流入時に巻き込まれる空気量が減少し、下部管体内で発生する気泡量が減少することとなって、下部管体内での雨水の体積増加及び管内圧力の増加が抑止される。そして、このように、雨水の体積増加及び管内圧力増加の抑止作用が得られるとともに、下部管体内で空気の塊が上方に浮き上がることに起因する雨水の押し戻し作用が生じることがないため、豪雨時における雨水の流下を促進させることができる。   As described above, the present invention provides a pipe joint that connects the lower end portion of the upper tubular body and the upper end portion of the lower tubular body, the upper end is an introduction port that is substantially equal to the inner diameter of the upper tubular body, and the lower end is the lower tubular body. A funnel-shaped portion having a smaller diameter outlet than the inner diameter is provided so that the outlet is concentric with the lower tubular body and a cylindrical ventilation region is formed around the downstream of the rainwater discharged from the outlet. On the other hand, a vent opening is provided in the pipe joint or the lower pipe body so as to communicate with the outside through the pipe joint or the lower pipe body. When a large amount of rainwater flowing down through the joint is discharged from the outlet of the funnel-shaped part provided in the pipe joint in the downstream of the rainwater, a cylindrical ventilation region is formed around the downstream of the rainwater. The air mass generated by combining the bubbles generated in the lower pipe is Is discharged to the outside from the ventilation openings through the vapor region, with increasing pipe pressure is suppressed, pushed back action of rainwater mass air lower tube body is caused by floating upwards is prevented. In addition, since rainwater flows into the lower pipe from the outlet of the funnel directly downstream of the rainwater, the amount of air entrained at the time of inflow is reduced, and the amount of bubbles generated in the lower pipe is reduced. Thus, an increase in the volume of rainwater and an increase in the pipe pressure in the lower pipe are suppressed. In this way, the rainwater volume increase and the pipe pressure increase deterrence action are obtained, and the rainwater push-back action caused by the air mass rising upward in the lower pipe does not occur. Can promote the flow of rainwater.

また、前記漏斗状部が、管継手と一体形成されている構成にあっては、施工時において、別体形成した漏斗状部を所定位置に配置し、かつ、保持させる作業が不要であるため、施工性に優れたものとなる。   Further, in the configuration in which the funnel-shaped part is integrally formed with the pipe joint, it is not necessary to place and hold the funnel-shaped part separately formed at a predetermined position at the time of construction. It is excellent in workability.

また、前記漏斗状部が、管継手と別体形成されたテーパ管部と、該テーパ管部の上端に外方突成された係合鍔部とからなり、該係合鍔部を管継手内に形成された係止段部に係合することによって、管継手内に保持されている構成にあっては、従来の管継手の構成を何ら変更することなく、漏斗状部のみを別体形成すればよいので、漏斗状部を管継手に一体形成する場合に比してコストを大幅に低減することができる。   The funnel-shaped portion includes a tapered tube portion formed separately from the pipe joint, and an engagement flange portion protruding outward from the upper end of the taper tube portion. In the configuration held in the pipe joint by engaging with the locking step formed inside, only the funnel-shaped part is separated without changing the configuration of the conventional pipe joint. Since it should just form, cost can be reduced significantly compared with the case where a funnel-shaped part is integrally formed in a pipe joint.

以下に、本発明の第一実施例を、図１に基づいて説明する。
縦樋管１は、図１に示すように、管継手２と、該管継手２を介して上下方向に接続された上部管体３及び下部管体４とからなり、この第一実施例では、上部管体３の下端部と下部管体４の上端部とが管継手２の上下両端部に嵌入されている。これにより、管継手２は縦樋管１の上下両端部を除く中間部に配設されることとなる。ここで、前記上部管体３及び下部管体４は、例えば1000mm,3000mm,4000mm等の定尺長さに形成されており、これらがそのまま、或いは施工態様に合わせて適宜の長さに切断したものが組み合わされて使用される。また、縦樋管１を構成する管継手２，上部管体３，下部管体４の材質には、アルミニウム，ステンレス等の耐腐食性金属や、ポリプロピレン樹脂，塩化ビニル樹脂等の硬質合成樹脂が用いられ得る。 Below, the 1st Example of this invention is described based on FIG.
As shown in FIG. 1, the vertical pipe 1 includes a pipe joint 2, and an upper pipe body 3 and a lower pipe body 4 connected in the vertical direction via the pipe joint 2. In this first embodiment, The lower end portion of the upper tubular body 3 and the upper end portion of the lower tubular body 4 are fitted into the upper and lower end portions of the pipe joint 2. Thereby, the pipe joint 2 will be arrange | positioned in the intermediate part except the upper and lower ends of the vertical pipe 1. Here, the upper tube body 3 and the lower tube body 4 are formed to have a fixed length such as 1000 mm, 3000 mm, 4000 mm, etc., and these are cut into appropriate lengths as they are or according to the construction mode. Things are used in combination. The pipe joint 2, the upper pipe body 3, and the lower pipe body 4 constituting the vertical pipe 1 are made of a corrosion-resistant metal such as aluminum or stainless steel, or a hard synthetic resin such as polypropylene resin or vinyl chloride resin. Can be used.

前記管継手２の内部には、その上下方向の中ほど位置に漏斗状部５が一体形成されている。該漏斗状部５は、上端に上部管体３の内径と略等しい導入口６を備え、下端に下部管体４の内径より小径の導出口７を備えており、該導出口７を下部管体４と同心状で、かつ該導出口７から排出される雨水直下流の周囲に筒状通気領域ｔが形成されるように配設されている。   A funnel-shaped portion 5 is integrally formed in the pipe joint 2 at the middle in the vertical direction. The funnel-shaped portion 5 has an inlet 6 that is substantially equal to the inner diameter of the upper tube 3 at the upper end, and a outlet 7 that is smaller in diameter than the inner diameter of the lower tube 4 at the lower end. It is concentric with the body 4 and is disposed so that a cylindrical ventilation region t is formed around the downstream of the rainwater discharged from the outlet 7.

また、前記管継手２には、筒状通気領域ｔの周囲に位置させて該筒状通気領域ｔと外部とを連通する複数の通気口８が開口されており、この第一実施例では、該通気口８が漏斗状部５の外側近傍に位置する管継手２の周壁に形成されている。   Further, the pipe joint 2 is provided with a plurality of vent holes 8 located around the cylindrical ventilation region t and communicating with the cylindrical ventilation region t and the outside. In this first embodiment, The vent 8 is formed in the peripheral wall of the pipe joint 2 located near the outside of the funnel-shaped portion 5.

そして、前記漏斗状部５と通気口８とによって、本発明にかかる雨水流下促進装置が構成されている。   The funnel-shaped portion 5 and the vent hole 8 constitute a rainwater flow facilitating device according to the present invention.

かかる構成にあって、縦樋管１が多階層住宅等の建物の壁面等に固定され、屋上及び各階のバルコニー等に配設されたルーフドレインから流入する雨水を流下させて地上の排水溝等に排水し得るように施工された状態において、豪雨時に、上部管体３から管継手２を通って流下する大量の雨水が、該管継手２に設けられた漏斗状部５の導入口６から流入して導出口７から雨水直下流となって下部管体４内へ排出されると、その雨水直下流の周囲に筒状通気領域ｔが形成されることにより、下部管体４内で発生した気泡が合体して生じる空気の塊が前記筒状通気領域ｔを介して通気口８から外部に排出されるので、下部管体４の管内圧力の増加を抑止することができるとともに、下部管体４内で空気の塊が上方に浮き上がることに起因する雨水の押し戻し作用が防止される。また、雨水が漏斗状部５の導出口７から雨水直下流となって下部管体４内に流入するため、その流入時に巻き込まれる空気量が減少し、下部管体４内で発生する気泡量が減少することとなって、下部管体４内での雨水の体積増加及び管内圧力の増加を抑止することができる。そして、このように、下部管体４内における雨水の体積増加及び管内圧力増加が抑止されるとともに、上記のように、下部管体４内で発生した空気の塊が前記筒状通気領域ｔを介して通気口８から外部に排出されるので、下部管体４内で空気の塊が上方に浮き上がることに起因する雨水の押し戻し作用が生じることがないため、豪雨時における雨水の流下を促進させることができる。   In such a configuration, the vertical pipe 1 is fixed to the wall surface of a building such as a multi-level house, etc., and rainwater flowing in from the roof drain disposed on the rooftop and the balcony of each floor is allowed to flow down and the drainage groove on the ground. A large amount of rainwater flowing down from the upper pipe body 3 through the pipe joint 2 during heavy rain from the inlet 6 of the funnel-shaped part 5 provided in the pipe joint 2 When flowing into the lower pipe 4 from the outlet 7 directly downstream of the rainwater, a cylindrical ventilation region t is formed around the downstream of the rainwater, thereby generating in the lower pipe 4 The lump of air generated by combining the bubbles is discharged from the vent 8 to the outside through the cylindrical ventilation region t, so that an increase in the pressure in the lower pipe 4 can be suppressed and the lower pipe Rainwater caused by air masses floating up in the body 4 Action push-back is prevented. In addition, since rainwater flows from the outlet 7 of the funnel-shaped part 5 directly downstream of the rainwater and flows into the lower tubular body 4, the amount of air entrained during the inflow is reduced and the amount of bubbles generated in the lower tubular body 4 As a result, the increase in the volume of rainwater and the increase in the pressure in the pipe can be suppressed. As described above, an increase in the volume of rainwater and an increase in the pressure in the pipe are suppressed in this way, and as described above, a lump of air generated in the lower pipe 4 forms the cylindrical ventilation region t. Since the air is discharged from the air vent 8 to the outside, the push-back action of the rainwater caused by the air mass rising upward in the lower tubular body 4 does not occur, thereby promoting the flow of rainwater during heavy rain. be able to.

また、前記漏斗状部５が、管継手２と一体形成されていることにより、施工時において、別体形成した漏斗状部５を所定位置に配置し、かつ、保持させる作業が不要であるため、優れた施工性が得られる。   In addition, since the funnel-shaped part 5 is formed integrally with the pipe joint 2, it is not necessary to arrange and hold the funnel-shaped part 5 formed separately at a predetermined position during construction. Excellent workability can be obtained.

図２は、第一実施例の変形実施例を示し、この変形実施例は、筒状通気領域ｔと外部とを連通する複数の通気口８を、下部管体４の上端近傍部に形成したものである。その他の構成は第一実施例と同じであり、第一実施例と共通する構成部分については第一実施例と同一符号を付して重複説明を省略する。   FIG. 2 shows a modified example of the first example. In this modified example, a plurality of vent holes 8 communicating the cylindrical ventilation region t and the outside are formed in the vicinity of the upper end of the lower tubular body 4. Is. Other configurations are the same as those of the first embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and redundant description is omitted.

かかる構成にあっても、第一実施例と同様の作用が得られ、豪雨時における雨水の流下を促進させることができる。このように、通気口８は必ずしも管継手２の周壁に形成する必要はない。また、漏斗状部５が、管継手２と一体形成されていることにより、施工時において、別体形成した漏斗状部５を所定位置に配置し、かつ、保持させる作業が不要であるため、優れた施工性が得られる。   Even in this configuration, the same effect as in the first embodiment can be obtained, and the flow of rainwater during heavy rain can be promoted. Thus, the vent hole 8 is not necessarily formed on the peripheral wall of the pipe joint 2. Moreover, since the funnel-shaped part 5 is integrally formed with the pipe joint 2, it is not necessary to arrange and hold the funnel-shaped part 5 formed separately at a predetermined position at the time of construction. Excellent workability can be obtained.

図３は、第二実施例を示し、この第二実施例は、管継手２の下部に漏斗状部５を一体形成したものであり、上部管体３の下端部を管継手２の上端部に内嵌し、下部管体４の上端部を漏斗状部５に外嵌することにより、上部管体３と下部管体４とが管継手２を介して上下方向に接続されている。また、下部管体４の上端近傍部には、筒状通気領域ｔと外部とを連通する複数の通気口８が形成されている。その他の構成は第一実施例と同じであり、第一実施例と共通する構成部分については第一実施例と同一符号を付して重複説明を省略する。   FIG. 3 shows a second embodiment, in which the funnel-shaped portion 5 is integrally formed at the lower portion of the pipe joint 2, and the lower end portion of the upper tubular body 3 is connected to the upper end portion of the pipe joint 2. The upper tubular body 3 and the lower tubular body 4 are connected in the vertical direction via the pipe joint 2 by fitting the upper end portion of the lower tubular body 4 to the funnel-shaped portion 5. A plurality of vent holes 8 are formed in the vicinity of the upper end of the lower tubular body 4 to communicate the tubular vent region t with the outside. Other configurations are the same as those of the first embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and redundant description is omitted.

かかる構成にあっても、第一実施例と同様の作用が得られ、豪雨時における雨水の流下を促進させることができる。また、漏斗状部５が、管継手２と一体形成されていることにより、施工時において、別体形成した漏斗状部５を所定位置に配置し、かつ、保持させる作業が不要であるため、優れた施工性が得られる。   Even in this configuration, the same effect as in the first embodiment can be obtained, and the flow of rainwater during heavy rain can be promoted. Moreover, since the funnel-shaped part 5 is integrally formed with the pipe joint 2, it is not necessary to arrange and hold the funnel-shaped part 5 formed separately at a predetermined position at the time of construction. Excellent workability can be obtained.

図４は、第三実施例を示し、この第三実施例は、漏斗状部５を管継手２と別体形成したものであり、該漏斗状部５は、上端に上部管体３の内径と略等しい導入口６を備え、かつ下端に下部管体４の内径より小径の導出口７を備えたテーパ管部９と、該テーパ管部９の上端に外方突成された環状の係合鍔部１０とからなる。ここで、管継手２は、その内部の上下方向の中ほど位置に、上部管体３及び下部管体４の差し込み量を規定する係止段部１１を備えた公知構造のものが用いられている。そして、該係止段部１１に前記係合鍔部１０を係合することによって、漏斗状部５が管継手２内に保持されている。また、下部管体４の上端近傍部には、筒状通気領域ｔと外部とを連通する複数の通気口８が形成されている。尚、漏斗状部５は、その係合鍔部１０を管継手２の係止段部１１に対して接着剤またはシーリング剤等の接合剤１２を用いて接合するようにしてもよい。その他の構成は第一実施例と同じであり、第一実施例と共通する構成部分については第一実施例と同一符号を付して重複説明を省略する。   FIG. 4 shows a third embodiment, in which the funnel-shaped portion 5 is formed separately from the pipe joint 2, and the funnel-shaped portion 5 has an inner diameter of the upper tubular body 3 at the upper end. A tapered tube portion 9 having an introduction port 6 substantially equal to the inner diameter of the lower tube body 4 at the lower end and an annular engagement projecting outward at the upper end of the tapered tube portion 9. It consists of a joint part 10. Here, the pipe joint 2 having a known structure having a locking step portion 11 that defines the amount of insertion of the upper tube body 3 and the lower tube body 4 is used in the middle of the inside in the vertical direction. Yes. The funnel-shaped portion 5 is held in the pipe joint 2 by engaging the engaging flange portion 10 with the engaging step portion 11. A plurality of vent holes 8 are formed in the vicinity of the upper end of the lower tubular body 4 to communicate the tubular vent region t with the outside. In addition, you may make it the funnel-shaped part 5 join the engaging collar part 10 with respect to the latching step part 11 of the pipe joint 2 using bonding agents 12, such as an adhesive agent or a sealing agent. Other configurations are the same as those of the first embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and redundant description is omitted.

かかる構成にあっても、第一実施例と同様の作用が得られ、豪雨時における雨水の流下を促進させることができる。また、従来の管継手２の構成を何ら変更することなく、漏斗状部５のみを別体形成すればよいので、上述した第一実施例及び第二実施例のように漏斗状部５を管継手２に一体形成する場合に比してコストを大幅に低減することができる。   Even in this configuration, the same effect as in the first embodiment can be obtained, and the flow of rainwater during heavy rain can be promoted. Further, since only the funnel-shaped portion 5 has to be formed separately without changing the configuration of the conventional pipe joint 2, the funnel-shaped portion 5 is connected to the tube as in the first and second embodiments described above. Compared with the case where the joint 2 is integrally formed, the cost can be greatly reduced.

図５は、第四実施例を示し、この第四実施例は前記第三実施例と同様に、漏斗状部５を管継手２と別体形成したものである。該漏斗状部５は、上端に上部管体３の内径と略等しい導入口６を備え、かつ下端に下部管体４の内径より小径の導出口７を備えたテーパ管部９と、該テーパ管部９の上端に外方突成された環状の係合鍔部１０とからなり、該係合鍔部１０を管継手２内に形成された係止段部１１に係合することによって、管継手２内に保持されている。管継手２は、側部に呼び樋管１４の端部が嵌入される被嵌入筒部１３を備えたＴ字形管継手からなる公知構造のものが用いられており、前記被嵌入筒部１３の基部開口を、筒状通気領域ｔと外部とを連通する通気口８としている。ここで、呼び樋管１４は、各階のバルコニー等に配設されたルーフドレイン（図示省略）に連通されるが、豪雨時にあってもバルコニー等に配設されたルーフドレインから流入する雨水量は僅かであるため、呼び樋管１４を介して筒状通気領域ｔと外部とを連通させることができるようになっている。尚、図６に示す変形実施例のように、通気口８’を漏斗状部５の外側近傍に位置する管継手２の周壁に形成することも可能である。   FIG. 5 shows a fourth embodiment. In the fourth embodiment, the funnel-shaped portion 5 is formed separately from the pipe joint 2 as in the third embodiment. The funnel-shaped portion 5 includes an inlet 6 that is substantially equal to the inner diameter of the upper tube 3 at the upper end, and a tapered tube portion 9 that has an outlet 7 that is smaller in diameter than the inner diameter of the lower tube 4 at the lower end. It is composed of an annular engagement flange 10 projecting outward from the upper end of the pipe portion 9, and by engaging the engagement flange 10 with a locking step 11 formed in the pipe joint 2, It is held in the pipe joint 2. The pipe joint 2 is of a known structure made of a T-shaped pipe joint provided with a fitted tube portion 13 into which the end portion of the nominal tube 14 is fitted on the side. The base opening is used as a vent 8 that allows the tubular vent region t to communicate with the outside. Here, the call pipe 14 communicates with a roof drain (not shown) provided on a balcony or the like on each floor, but the amount of rainwater flowing from the roof drain provided on the balcony or the like even during heavy rain is Since there are few, the cylindrical ventilation area | region t and the exterior can be connected now through the call pipe 14. FIG. It is also possible to form the vent 8 'on the peripheral wall of the pipe joint 2 located in the vicinity of the outside of the funnel-shaped portion 5 as in the modified embodiment shown in FIG.

かかる構成にあっても、第一実施例と同様の作用が得られ、豪雨時における雨水の流下を促進させることができる。また、従来の管継手２の構成を何ら変更することなく、漏斗状部５のみを別体形成すればよいので、上述した第一実施例及び第二実施例のように漏斗状部５を管継手２に一体形成する場合に比してコストを大幅に低減することができる。   Even in this configuration, the same effect as in the first embodiment can be obtained, and the flow of rainwater during heavy rain can be promoted. Further, since only the funnel-shaped portion 5 has to be formed separately without changing the configuration of the conventional pipe joint 2, the funnel-shaped portion 5 is connected to the tube as in the first and second embodiments described above. Compared with the case where the joint 2 is integrally formed, the cost can be greatly reduced.

第一実施例にかかる雨水流下促進装置を備えた縦樋管１の縦断面図である。It is a longitudinal cross-sectional view of the vertical pipe 1 provided with the rainwater flow promotion apparatus concerning a 1st Example. 第一実施例の変形実施例にかかる雨水流下促進装置を備えた縦樋管１の縦断面図である。It is a longitudinal cross-sectional view of the downpipe 1 provided with the rainwater flow promotion apparatus concerning the modification of a 1st Example. 第二実施例にかかる雨水流下促進装置を備えた縦樋管１の縦断面図である。It is a longitudinal cross-sectional view of the vertical pipe 1 provided with the rainwater flow promotion apparatus concerning a 2nd Example. 第三実施例にかかる雨水流下促進装置を備えた縦樋管１の縦断面図である。It is a longitudinal cross-sectional view of the vertical pipe 1 provided with the rainwater flow promotion apparatus concerning a 3rd Example. 第四実施例にかかる雨水流下促進装置を備えた縦樋管１の縦断面図である。It is a longitudinal cross-sectional view of the vertical pipe 1 provided with the rainwater flow promotion apparatus concerning 4th Example. 第四実施例の変形実施例にかかる雨水流下促進装置を備えた縦樋管１の縦断面図である。It is a longitudinal cross-sectional view of the vertical pipe 1 provided with the rainwater flow promotion apparatus concerning the modification of 4th Example.

符号の説明Explanation of symbols

１ 縦樋管
２ 管継手
３ 上部管体
４ 下部管体
５ 漏斗状部
６ 導入口
７ 導出口
８ 通気口
９ テーパ管部
１０ 係合鍔部
１１ 係止段部
ｔ 筒状通気領域 DESCRIPTION OF SYMBOLS 1 Vertical vertical pipe 2 Pipe joint 3 Upper pipe 4 Lower pipe 5 Funnel-shaped part 6 Inlet 7 Outlet 8 Vent 9 Tapered pipe 10 Engagement hook 11 Locking step t Cylindrical vent area

Claims (3)

上部管体の下端部と下部管体の上端部とが管継手を介して上下方向に接続されてなり、雨水を流下させて排水に供せられる縦樋管において、
前記管継手に、上端を上部管体の内径と略等しい導入口とし、下端を下部管体の内径より小径の導出口する漏斗状部が、その導出口を下部管体と同心状で、かつ雨水が導出口からのみ流下するようにして、該導出口から排出される雨水直下流の周囲に筒状通気領域が形成されるように設けられる一方、前記筒状通気領域の周囲に位置させて、管継手または下部管体に前記筒状通気領域と外部とを連通する通気口が開口されていることを特徴とする縦樋管における雨水流下促進装置。 In the vertical pipe where the lower end of the upper pipe and the upper end of the lower pipe are connected in the vertical direction via a pipe joint, and the rainwater flows down and is used for drainage.
In the pipe joint, a funnel-shaped part having an upper end substantially equal to the inner diameter of the upper pipe and a lower end having a smaller outlet than the inner diameter of the lower pipe, the outlet is concentric with the lower pipe, and The rainwater flows only from the outlet and is provided so that a cylindrical ventilation region is formed immediately downstream of the rainwater discharged from the outlet , while being positioned around the cylindrical ventilation region. A rainwater flow facilitating device in a vertical pipe, wherein a vent opening that communicates the cylindrical vent region and the outside is opened in a pipe joint or a lower pipe body. 漏斗状部が、管継手と一体形成されていることを特徴とする請求項１記載の縦樋管における雨水流下促進装置。   2. The rainwater flow facilitating device for a vertical pipe according to claim 1, wherein the funnel-shaped portion is formed integrally with the pipe joint. 漏斗状部が、管継手と別体形成されたテーパ管部と、該テーパ管部の上端に外方突成された係合鍔部とからなり、該係合鍔部を管継手内に形成された係止段部に係合することによって、管継手内に保持されていることを特徴とする請求項１記載の縦樋管における雨水流下促進装置。   The funnel-shaped portion is composed of a tapered tube portion formed separately from the pipe joint, and an engagement flange portion protruding outward from the upper end of the taper tube portion, and the engagement flange portion is formed in the pipe joint. The rainwater flow facilitating device for a vertical pipe according to claim 1, wherein the rainwater flow facilitating device is held in the pipe joint by being engaged with the engaging stepped portion.
JP2006336782A 2006-12-14 2006-12-14 Rainwater flow facilitator for vertical pipes Expired - Fee Related JP5117043B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006336782A JP5117043B2 (en) 2006-12-14 2006-12-14 Rainwater flow facilitator for vertical pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006336782A JP5117043B2 (en) 2006-12-14 2006-12-14 Rainwater flow facilitator for vertical pipes

Publications (2)

Publication Number Publication Date
JP2008150785A JP2008150785A (en) 2008-07-03
JP5117043B2 true JP5117043B2 (en) 2013-01-09

Family

ID=39653255

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006336782A Expired - Fee Related JP5117043B2 (en) 2006-12-14 2006-12-14 Rainwater flow facilitator for vertical pipes

Country Status (1)

Country Link
JP (1) JP5117043B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106088490A (en) * 2016-07-30 2016-11-09 马千里 A kind of rain pipe installing house indoor

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5310358B2 (en) * 2009-07-28 2013-10-09 トライエンジニアリング株式会社 竪 樋
CN101967871B (en) * 2010-10-21 2012-07-04 西安建筑科技大学 Flow control-based tubular rainwater flow discarding device
JP2016223695A (en) * 2015-05-29 2016-12-28 丸一株式会社 Piping structure for electric water heater
CN112538936A (en) * 2020-11-19 2021-03-23 许文斌 Runoff control device
WO2024072321A1 (en) * 2022-09-30 2024-04-04 Fast Flow Limited Drainage assembly and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2554971Y2 (en) * 1993-12-24 1997-11-19 忠彦 田村 Intermediate downspout with water intake
JP2001115614A (en) * 1999-10-20 2001-04-24 Sekisui Chem Co Ltd Down pipe connection structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106088490A (en) * 2016-07-30 2016-11-09 马千里 A kind of rain pipe installing house indoor
CN106088490B (en) * 2016-07-30 2018-06-05 马千里 A kind of rain pipe for installing house indoor

Also Published As

Publication number Publication date
JP2008150785A (en) 2008-07-03

Similar Documents

Publication Publication Date Title
JP5117043B2 (en) Rainwater flow facilitator for vertical pipes
JP7284778B2 (en) Drainage members and rain gutters
JP4252553B2 (en) Drainage equipment in the building
JP6279795B1 (en) Drainage member
JP2019007340A5 (en) Drainage member and rain gutter
JP5616568B2 (en) Leg joint and drainage system using the leg joint
JP5483924B2 (en) Drainage pipe joint and drainage structure using this drainage pipe joint
JP2003113990A (en) Drain pipe channel and piping material used for drain pipe channel
JP2006132287A (en) Joint for down pipe
JP6693693B2 (en) Building drainage systems and fittings for drainage systems
JP4442749B2 (en) Rainwater drainage structure
JP3322963B2 (en) Drainage pipe
JPS605112Y2 (en) Building drainage system
JP2009062701A (en) Gutter piping system
JP2009057694A (en) Drainage socket
JP5285232B2 (en) Drainage piping structure
JP2003342984A (en) Drain pipe arranging system
JP3154813B2 (en) Drainage fitting
JP2010031498A (en) Siphon drainage system
JP2023152744A (en) Piping structure and building
JP2022155591A (en) Piping structure and building
JP2022171855A (en) Piping structure and building
JPH07167366A (en) Drain pipeline and drain pipe joint used for drain pipeline
JP2022151530A (en) Piping structure and building
JP6559952B2 (en) Drainage joint and drainage system

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20091204

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20111202

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120125

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120309

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120925

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20121017

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20151026

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees