JP3020718U - Flexible joint for connecting mounting pipe for pipe - Google Patents
Flexible joint for connecting mounting pipe for pipeInfo
- Publication number
- JP3020718U JP3020718U JP1995007362U JP736295U JP3020718U JP 3020718 U JP3020718 U JP 3020718U JP 1995007362 U JP1995007362 U JP 1995007362U JP 736295 U JP736295 U JP 736295U JP 3020718 U JP3020718 U JP 3020718U
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- mounting pipe
- flexible joint
- main
- mounting
- 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
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- Branch Pipes, Bends, And The Like (AREA)
- Joints Allowing Movement (AREA)
Abstract
(57)【要約】
【課題】 本管と取付管とを接続するための管渠用の取
付管接続用可撓継手において、地盤沈下などにより生じ
る取付管の変位に対して追従可能で、かつ接続後直ちに
埋め戻し可能な継手を提案するものである。
【解決手段】 本管上に設置されるサドル部と取付管を
挿入する円筒部とから構成されるゴム製の継手本体と、
サドル部を押さえる押さえカバーと、押さえカバーと本
管とを締結するＵバンドと、円筒部に挿入した取付管を
円筒部に固定するための少なくとも２本の締結バンドと
を具え、また円筒部に蛇腹部を設けて取付管の変位に追
従できる構造とし、さらに本管と本体サドル部および取
付管と本体円筒部の接合面に、粘着性を有する粘弾性体
からなる止水材を介在させて止水性の向上を図る。
(57) [Abstract] [PROBLEMS] A flexible joint for connecting a mounting pipe for connecting a main pipe and a mounting pipe, which can follow displacement of the mounting pipe caused by ground subsidence and the like. We propose a joint that can be backfilled immediately after connection. SOLUTION: A rubber joint body composed of a saddle part installed on a main pipe and a cylindrical part into which a mounting pipe is inserted,
It has a holding cover for holding the saddle part, a U band for fastening the holding cover and the main pipe, and at least two fastening bands for fixing the mounting pipe inserted in the cylindrical part to the cylindrical part. A structure that can follow the displacement of the mounting pipe is provided by providing a bellows part, and a water blocking material made of an adhesive viscoelastic body is interposed at the joint surface of the main pipe and the main body saddle part and the mounting pipe and the main body cylindrical part. Aims to improve the waterproofness.
Description
【０００１】 本考案は、本管と取付管との接続を行うための管渠用の取付管接続用可撓継手 に関するものであり、好ましくは、下水道管などの地中に埋設された本管と取付 管とを接続するための継手の構造に関するものである。The present invention relates to a flexible joint for connecting a mounting pipe for connecting a main pipe and a mounting pipe, and preferably a main pipe buried in the ground such as a sewer pipe. The present invention relates to the structure of a joint for connecting a pipe and a mounting pipe.
【０００２】[0002]
地中に埋設される下水道管としては、ヒューム管、陶管、塩化ビニル管が知ら れている。下水道の本管には取付管が継手を介して接続され、この取付管を通し て住宅、オフィスビル、工場などからの排水を流し、本管で排水を合流させてい る。本管と取付管との接続には、従来、本管を被覆するサドル部と、取付管を接 続する円筒部からなる硬質塩化ビニル製の継手が使用されている。本管と取付管 との接続は、本管と継手との接合面に硬質塩化ビニル用の専用接着剤を塗布し、 塗布後に本管と取付管とを同時に素早く押さえ込みながら接合し、接着すること により行っている。 Hume pipes, ceramic pipes, and vinyl chloride pipes are known as sewer pipes buried in the ground. An attachment pipe is connected to the main sewer by means of a joint. Through this attachment pipe, drainage from homes, office buildings, factories, etc. is made to flow, and the drainage is joined at the main. Conventionally, a hard vinyl chloride joint consisting of a saddle portion covering the main pipe and a cylindrical portion connecting the mounting pipe has been used for connecting the main pipe and the mounting pipe. To connect the main pipe and the mounting pipe, apply a special adhesive for hard vinyl chloride to the joint surface between the main pipe and the joint, and after applying, fasten the main pipe and the mounting pipe at the same time to join and bond them. Is done by.
【０００３】[0003]
しかし、従来の硬質塩化ビニルの継手では、施工時に使用する接着剤には硬化 時間があるため、硬化するまで埋め戻しができない。また地盤沈下などにより取 付管の変位が生じた場合、継手が追従できず漏水の原因となるという問題があっ た。 However, with conventional rigid vinyl chloride joints, the adhesive used during construction has a curing time, so backfilling cannot be performed until the adhesive is cured. In addition, when the installation pipe is displaced due to ground subsidence, the joint cannot follow and there is a problem of water leakage.
【０００４】[0004]
本考案は、本管と取付管とを接続するための管渠用の取付管接続用可撓継手に おいて、取付管との接続のために本管上に設置するサドル部と取付管を挿入する 円筒部とから構成される継手本体と、サドル部と本管とを密着させるための押さ えカバーと、押さえカバーと本管とを締結するＵバンドと、円筒部に挿入した取 付管を円筒部に固定するための２本の締結バンドとを具え、また前記円筒部に蛇 腹部を設けて取付管の変位に追従できる構造とし、さらに本管とサドル部、およ び円筒部と取付管との接合面に、粘着性を有する粘弾性体からなる止水材を介在 させて止水性の向上を図るものである。 The present invention relates to a flexible joint for connecting a mounting pipe for a pipe for connecting the main pipe and the mounting pipe, in which a saddle portion and a mounting pipe to be installed on the main pipe for connecting with the mounting pipe are provided. Fitting body consisting of a cylindrical part to be inserted, a holding cover for tightly adhering the saddle part to the main pipe, a U band for fastening the holding cover and the main pipe, and an attachment pipe inserted into the cylindrical part. Is provided with two fastening bands for fixing to the cylindrical portion, and a bellows portion is provided on the cylindrical portion so as to follow the displacement of the mounting pipe, and further, the main pipe, the saddle portion, and the cylindrical portion A water stop material made of an adhesive viscoelastic body is interposed on the joint surface with the mounting pipe to improve water stoppage.
【０００５】 さらに本考案に係る管渠用の取付管接続用可撓継手は、円筒部内側に取付管の 本管への突入を防ぐための取付管受け部を設けるとともに、継手本体内側の本管 削孔部に沿って形成される円筒部下端に、継手本体の設置の際の位置決めのため の突出部を設けていることを特徴としている。Further, the flexible joint for connecting a mounting pipe for a pipe according to the present invention is provided with a mounting pipe receiving portion for preventing the mounting pipe from entering the main pipe inside the cylindrical portion, and a flexible pipe inside the joint body. It is characterized in that a protrusion for positioning when installing the joint body is provided at the lower end of the cylindrical portion formed along the pipe drilling portion.
【０００６】[0006]
以下実施例により本考案を具体的に説明する。 Hereinafter, the present invention will be described in detail with reference to Examples.
【０００７】 図１〜図４は、本考案による管渠用の取付管接続用可撓継手の一実施例を示す ものである。図１に示すように、本考案による可撓継手は、本体４、押さえカバ ー５、押さえカバーを本管２に固定するためのＵバンド６および取付管３を継手 に固定するための締結バンド７とを具えている。1 to 4 show an embodiment of a flexible joint for connecting a mounting pipe for a pipe according to the present invention. As shown in FIG. 1, the flexible joint according to the present invention includes a main body 4, a pressing cover 5, a U band 6 for fixing the pressing cover to the main pipe 2, and a fastening band for fixing the mounting pipe 3 to the joint. It has 7 and 7.
【０００８】 本体４は、本管２上に設置するサドル部８、および取付管３と接続する円筒部 ９より構成され、円筒部９には蛇腹部10が設けられている。蛇腹部10は、取付管 の変位によって円筒部に引張り力が加わり亀裂破損などが生じることを防ぐため に設けられている。蛇腹部10を設けることにより、図５に示すように取付管が本 管削孔部の中心軸に対して20°傾斜しても、蛇腹部が広がるため円筒部に歪みが 生じることなく、外水圧0.098MPa（1.0Kgf/cm2）で１時間の水密性を保つことが 可能となる。The main body 4 is composed of a saddle portion 8 installed on the main pipe 2 and a cylindrical portion 9 connected to the mounting pipe 3, and the cylindrical portion 9 is provided with a bellows portion 10. The bellows portion 10 is provided to prevent a tensile force from being applied to the cylindrical portion due to the displacement of the mounting pipe and crack damage or the like. By providing the bellows portion 10, as shown in FIG. 5, even if the mounting pipe is inclined by 20 ° with respect to the central axis of the main hole, the bellows portion expands and the cylindrical portion is not distorted. It is possible to maintain watertightness for 1 hour at a water pressure of 0.098MPa (1.0Kgf / cm 2 ).
【０００９】 本体４は、取付管の変位に対して追従できるように可撓性を有するゴム製とし 、一方押さえカバー５は、ステンレスなどの金属、またはプラスチックなど剛性 を有する材質であることが望ましい。The body 4 is made of a flexible rubber so that it can follow the displacement of the mounting tube, while the holding cover 5 is preferably made of a metal such as stainless steel or a rigid material such as plastic. .
【００１０】 また、図２および図３に示すように、本体４の蛇腹部10とサドル部８の間の円 筒部内側に、取付管３の本管への突入を防止するための取付管受け部15が設けら れている。この取付管受け部15の厚みは20mm以上必要である。これは、20mm未満 では通常の埋設深さ１〜５ｍの土圧に耐えられず、取付管が本管に突入する恐れ があるためである。Further, as shown in FIG. 2 and FIG. 3, a mounting pipe for preventing the mounting pipe 3 from entering the main pipe inside the cylindrical portion between the bellows portion 10 and the saddle portion 8 of the main body 4. A receiving portion 15 is provided. The thickness of this mounting pipe receiving portion 15 needs to be 20 mm or more. This is because if it is less than 20 mm, it will not be able to withstand the earth pressure of the normal burial depth of 1 to 5 m, and the mounting pipe may rush into the main pipe.
【００１１】 さらに、本体４の円筒部９の内側には、本管削孔部16に沿って突出部17が設け られている。この突出部17は、本体４を本管削孔部16上に据え付ける際の位置決 めや、取付管３が大きく変位して本体にずれ応力がかかった場合に、ずれに対す る抵抗となる、などの機能を有している。Further, inside the cylindrical portion 9 of the main body 4, a protruding portion 17 is provided along the main hole drilling portion 16. This protruding portion 17 serves as resistance against displacement when the main body 4 is installed on the main hole drilling portion 16 and when the mounting pipe 3 is largely displaced and a displacement stress is applied to the main body. It has functions such as.
【００１２】 本考案による管渠用の取付管接続用可撓継手を用いた本管と取付管との接続は 、図１、図２および図４に示すように、本管削孔部16上に本体４を設置し、その サドル部８上に押さえカバー５を設置し、Ｕバンド６およびボルト11、ナット12 を用いて押さえカバー５を固定する。次いで本体４の円筒部９に取付管３を挿入 し、締結バンド７およびハウジングネジ13により固定する。このとき、本体と本 管、および本管と取付管との間に止水材18を介在させる。The connection between the main pipe and the mounting pipe using the flexible joint for connecting the mounting pipe for the pipe according to the present invention is performed on the main pipe drilling portion 16 as shown in FIGS. 1, 2 and 4. The main body 4 is installed in the main body 4, the pressing cover 5 is installed on the saddle portion 8, and the pressing cover 5 is fixed by using the U band 6, the bolt 11 and the nut 12. Then, the mounting tube 3 is inserted into the cylindrical portion 9 of the main body 4 and fixed by the fastening band 7 and the housing screw 13. At this time, the water stop material 18 is interposed between the main body and the main pipe, and between the main pipe and the mounting pipe.
【００１３】 本体４のサドル部８と本管２との接合部、および取付管３と円筒部９との接合 部には、押さえカバー５および締結バンド７による締め付け時の変形や、硬質塩 化ビニル管などに対する汚染がないことなどから、図２および図３に示すように 、止水材18としてブチルゴムなどの粘着性を有する粘弾性体からなる粘着テープ を使用する。この粘着テープを使用することにより、外水圧0.098MPa（1.0Kgf/c m2）で１時間の水密性を保つことが可能となる。At the joint between the saddle portion 8 of the main body 4 and the main pipe 2 and at the joint between the mounting pipe 3 and the cylindrical portion 9, deformation at the time of tightening with the pressing cover 5 and the fastening band 7, and hard salt. As shown in FIGS. 2 and 3, an adhesive tape made of an adhesive viscoelastic material such as butyl rubber is used as the water blocking material 18 because there is no contamination of vinyl pipes. By using this adhesive tape, it becomes possible to maintain the watertightness for 1 hour at an external water pressure of 0.098 MPa (1.0 Kgf / cm 2 ).
【００１４】 押さえカバー５で本体４を固定する際には、簡単に取付けられ、かつ確実な水 密性を得るための施工性が求められる。そのため、図２および図４に示すように 押さえカバー５とＵバンド６の締結部の一方を、押さえカバー５の縁部に設けら れた凹部とＵバンド端部近傍に設けられた切欠部とが係合することにより固定さ れる構造とし、他方をボルト11およびナット12により固定される構造とすること で優れた施工性が得られる。When fixing the main body 4 with the pressing cover 5, it is required to be easily attached and to have workability for obtaining reliable water tightness. Therefore, as shown in FIGS. 2 and 4, one of the fastening portions between the pressing cover 5 and the U band 6 is provided with a recess provided at the edge of the pressing cover 5 and a notch provided near the end of the U band. Excellent workability can be obtained by adopting a structure in which they are fixed by engaging with each other and a structure in which the other is fixed by bolts 11 and nuts 12.
【００１５】 本体の円筒部で取付管を締め付け固定する締結バンド７は、取付管の保持およ び水の侵入防止に必要であるが、１本の締結バンドでは取付管の変位時に締め付 け部がずれる可能性があるため、少なくとも２本必要である。The fastening band 7 for fastening and fixing the mounting pipe in the cylindrical portion of the main body is necessary for holding the mounting pipe and preventing water from entering, but with one fastening band, tightening is required when the mounting pipe is displaced. At least two pieces are required because the parts may be displaced.
【００１６】[0016]
以上、本考案による管渠用の取付管接続用可撓継手は、継手本体が可撓性を有 し、また取付管との接続部に蛇腹部を設けているため、従来の硬質の継手と比較 して、地盤沈下、地震などにより取付管の変位が発生した場合でも、図５に示す ように、これに容易に追従し止水性を保持することが可能である。 As described above, the flexible joint for connecting the mounting pipe for the conduit according to the present invention is flexible with the conventional rigid joint because the joint body has flexibility and the bellows portion is provided at the connecting portion with the mounting pipe. In comparison, even if displacement of the mounting pipe occurs due to ground subsidence, an earthquake, etc., as shown in Fig. 5, it is possible to easily follow this and maintain waterproofness.
【００１７】 また、本管および取付管と接続する部位に粘着性の止水材を介在させているた め、接着剤を使用することがなく、そのため接続後直ちに埋め戻しを行うことが でき、工期の短縮を図ることが可能となる。Further, since the adhesive water blocking material is interposed between the main pipe and the mounting pipe, the adhesive is not used, and therefore the back filling can be performed immediately after the connection. It is possible to shorten the construction period.
【図１】本考案による管渠用の取付管接続用可撓継手を
本管と取付管との接続に使用した場合を示す外観図であ
る。FIG. 1 is an external view showing a case where a flexible joint for connecting a mounting pipe for a pipe according to the present invention is used for connecting a main pipe and a mounting pipe.
【図２】本考案による管渠用の取付管接続用可撓継手の
取付管の軸方向に沿った断面図である。FIG. 2 is a cross-sectional view taken along the axial direction of a mounting pipe of a flexible joint for connecting a mounting pipe for a pipe according to the present invention.
【図３】本考案による管渠用の取付管接続用可撓継手本
体の、本管および取付管それぞれの軸方向に沿った断面
図である。FIG. 3 is a sectional view of a flexible joint body for connecting a mounting pipe for a pipe according to the present invention, taken along the axial direction of each of the main pipe and the mounting pipe.
【図４】本考案による管渠用の取付管接続用可撓継手を
構成する部材を示す斜視図である。FIG. 4 is a perspective view showing members constituting a flexible joint for attaching a pipe for a pipe according to the present invention.
【図５】本考案による管渠用の取付管接続用可撓継手の
円筒部が、取付管の変位に追随して角度θ傾斜している
状態を示す図である。FIG. 5 is a view showing a state in which a cylindrical portion of a flexible joint for connecting a mounting pipe for a pipe according to the present invention is inclined by an angle θ according to the displacement of the mounting pipe.
2 本管 3 取付管 4 継手本体 5 押さえカバー 6 Ｕバンド 7 締結バンド 8 本体サドル部 9 本体円筒部 10 蛇腹部 11 ボルト 12 ナット 13 ハウジングネジ 15 取付管受け部 16 本管削孔部 17 突出部 18 止水材 21 ワッシャー 2 Main pipe 3 Mounting pipe 4 Fitting body 5 Presser cover 6 U band 7 Fastening band 8 Main body saddle part 9 Main body cylindrical part 10 Bellows part 11 Bolt 12 Nut 13 Housing screw 15 Mounting pipe receiving part 16 Main pipe drilling part 17 Projection part 18 Water stop material 21 Washer
Claims (7)
の取付管接続用可撓継手において、 取付管との接続のために本管上に設置するサドル部と取
付管を挿入する円筒部とから構成されるゴム製の継手本
体と、 本管と継手本体とを密着させるための、継手本体サドル
部を押さえる押さえカバーと、 押さえカバーと本管とを締結するＵバンドと、 円筒部に挿入した取付管を円筒部に固定するための締結
バンドとを具えた可撓継手。1. A flexible joint for connecting a mounting pipe for a pipe for connecting a main pipe and a mounting pipe, wherein a saddle portion to be installed on the main pipe and a mounting pipe are inserted for connection with the mounting pipe. A rubber joint body composed of a cylindrical portion, a holding cover for holding the main body and the joint body in close contact with each other, and a U band for fastening the holding cover and the main pipe. A flexible joint, comprising: a fastening band for fixing the mounting tube inserted into the cylindrical portion to the cylindrical portion.
押さえカバーとＵバンドとの締結部の一方が、押さえカ
バー端部に設けられた凹部とＵバンド端部近傍に設けら
れた切欠部との係合により固定され、他方がボルトおよ
びナットにより固定されることを特徴とする可撓継手。2. The flexible joint according to claim 1, wherein one of the fastening portions between the pressing cover and the U band is a recess provided at an end of the pressing cover and a notch provided near the end of the U band. A flexible joint characterized by being fixed by engagement with and the other being fixed by a bolt and a nut.
本体内側の、本管削孔部に沿って形成される円筒部下端
に、前記継手本体設置の際の位置決めのための突出部を
有することを特徴とする可撓継手。3. The flexible joint according to claim 1, wherein a protrusion for positioning at the time of installing the joint body is provided at a lower end of a cylindrical portion formed along the main hole drilled portion inside the joint body. A flexible joint characterized by having.
円筒部に、前記取付管の位置変化に追従するための蛇腹
部が設けられていることを特徴とする可撓継手。4. The flexible joint according to claim 1, wherein the cylindrical portion is provided with a bellows portion for following a positional change of the mounting pipe.
手において、前記円筒部の内側に、前記取付管の本管内
部への突入を防止するための取付管受け部が形成され、
かつ、この取付管受け部の厚みが20mm以上であることを
特徴とする可撓継手。5. The flexible joint according to claim 1 or 2, wherein a mounting pipe receiving portion for preventing the mounting pipe from entering the main pipe is formed inside the cylindrical portion,
Further, the flexible joint is characterized in that the thickness of the mounting pipe receiving portion is 20 mm or more.
記載の可撓継手において、前記本管の外周面と前記継手
本体サドル部の内面との間および前記取付管の外周面と
前記本体円筒部内面との間に層状の止水材が挟まれ、か
つ圧着されていることを特徴とする可撓継手。6. The flexible joint according to any one of claims 1 to 5, wherein an outer peripheral surface of the main pipe and an inner surface of the joint main body saddle portion and an outer peripheral surface of the mounting pipe are provided. A flexible joint, wherein a layered waterproof material is sandwiched between the inner surface of the main body cylindrical portion and pressure-bonded thereto.
止水材が粘着性を有する粘弾性体であることを特徴とす
る可撓継手。7. The flexible joint according to claim 6, wherein the water blocking material is a viscoelastic body having an adhesive property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1995007362U JP3020718U (en) | 1995-07-18 | 1995-07-18 | Flexible joint for connecting mounting pipe for pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1995007362U JP3020718U (en) | 1995-07-18 | 1995-07-18 | Flexible joint for connecting mounting pipe for pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3020718U true JP3020718U (en) | 1996-02-06 |
Family
ID=43156083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1995007362U Expired - Lifetime JP3020718U (en) | 1995-07-18 | 1995-07-18 | Flexible joint for connecting mounting pipe for pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3020718U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3401404B2 (en) | 1997-05-28 | 2003-04-28 | 早川ゴム株式会社 | Pipe connection structure |
| JP2023060287A (en) * | 2019-03-25 | 2023-04-27 | 株式会社水道技術開発機構 | Branch pipe repair device |
-
1995
- 1995-07-18 JP JP1995007362U patent/JP3020718U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3401404B2 (en) | 1997-05-28 | 2003-04-28 | 早川ゴム株式会社 | Pipe connection structure |
| JP2023060287A (en) * | 2019-03-25 | 2023-04-27 | 株式会社水道技術開発機構 | Branch pipe repair device |
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