JPH0596144U - PVC small diameter manhole - Google Patents
PVC small diameter manholeInfo
- Publication number
- JPH0596144U JPH0596144U JP4538192U JP4538192U JPH0596144U JP H0596144 U JPH0596144 U JP H0596144U JP 4538192 U JP4538192 U JP 4538192U JP 4538192 U JP4538192 U JP 4538192U JP H0596144 U JPH0596144 U JP H0596144U
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- JP
- Japan
- Prior art keywords
- inspection
- manhole
- diameter
- pvc
- small
- 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.)
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Abstract
(57)【要約】
【目的】 公道に用いられる塩ビ製小口径マンホ−ルの
点検筒に鉛直性をもたせる。
【構成】 塩ビ製下水本管に接続される塩ビ製小口径マ
ンホ−ルの本体１に、点検筒６を立てる。この点検筒６
の上端に蓋８を設ける。この点検筒６とマンホ−ル本体
１との間に、カラ−継手５を介在させ、このカラ−継手
５に、点検筒６が若干首振りできるような例えば、ゴム
輪受口２０や自在継手を付設する。したがって、マンホ
−ル本体１の布設勾配が変わっても、点検筒６は常に鉛
直となって、点検・掃除に好都合となる。
(57) [Summary] [Purpose] To provide vertical inspection pipes for small-diameter PVC manholes used on public roads. [Structure] An inspection tube 6 is set up on a main body 1 of a vinyl chloride small-diameter manhole connected to a PVC sewer main pipe. This inspection tube 6
A lid 8 is provided on the upper end of the. A color joint 5 is interposed between the inspection tube 6 and the manhole main body 1, and the inspection tube 6 can be slightly swung with respect to the color joint 5, for example, a rubber ring receiving port 20 or a universal joint. Attach. Therefore, even if the laying gradient of the manhole main body 1 changes, the inspection tube 6 is always vertical, which is convenient for inspection and cleaning.
Description
【０００１】[0001]
本考案は、鉛直性を保持する点検筒をもつ塩ビ製小口径マンホ−ルに関するも のである。 The present invention relates to a PVC small-diameter manhole having a vertical inspection tube.
【０００２】[0002]
周知のごとくマンホ−ルや会所ますは、排水管の合流点、屈曲管、勾配変化点 、あるいは管径の変化点などに設置され、管きょの点検および掃除を行うように している。 As is well known, manholes and halls are installed at the confluence of drainage pipes, bent pipes, slope change points, or pipe diameter change points so that pipes can be inspected and cleaned.
【０００３】 ところで、昨今、マンホ−ルに関しては、下水道の普及に伴い下水本管（下水 管きょ施設の管であって、原則として公道に埋設されるもの）の埋設が集落排水 や狭小道路にも及ぶようになり、従来のコンクリ−ト製マンホ−ル（代表的には 、人が出入り可能のもの）では大きすぎて設置スペ−スに難点があり、狭小な場 所での、大型マンホ−ルのための掘削や矢板打ち等の施工に手間がかかると共に 、工事が難しくなる等の問題が生じてきた。By the way, in recent years, with regard to manholes, with the spread of sewerage, sewage mains (pipes of sewage pipe facilities, which are basically buried in public roads) are buried in community drainage and narrow roads. The conventional concrete manholes (typically those that allow people to enter and leave) are too large to be installed in a small space. Problems such as excavation for manholes and construction of sheet piles are time-consuming, and the construction becomes difficult.
【０００４】 一方、会所ますに関しては、宅地の狭小化に伴い従来の大型の会所ますを設置 する場所がなくなり、しかも、コンクリ−ト製のますを築造する専門技術者が不 足し、そのため、掃除口管を立上がらせた、塩ビ製のいわゆる小口径ますが使用 されるようになってきた（例えば、実公平２−４５３５０号公報、実公平３−２ ９６７２号公報等参照）。On the other hand, as for the hall, the space for installing the conventional large hall has disappeared due to the narrowing of the residential area, and moreover, the specialized engineer who builds the concrete trout has been lacking, so the cleaning So-called small-diameter masu made of PVC with a raised mouth tube has come into use (see, for example, Japanese Utility Model Publication No. 2-45350 and Japanese Utility Model Publication No. 3-29672).
【０００５】 かかる塩ビ製の小口径ますは、従来のコンクリ−ト製ますに比べ、１）浸入水 を防止できる。２）小口径ますと塩ビパイプとの接続が良好にできる。３）宅地 内スペ−スをとらず、美観を損なわない。４）コストを下げる。５）工事が早い 、等の効果を発揮する。Compared with conventional concrete-made masu, such a small-diameter masu made of PVC can 1) prevent ingress of water. 2) A small diameter allows good connection with a PVC pipe. 3) Housing space Does not take space and does not spoil aesthetics. 4) Lower costs. 5) The effect is that construction is quick.
【０００６】 したがって、かかる効果と、最近の住宅における排水設備器具（例えば、水洗 トイレ、洗濯機等）の増加とが相俟って、多数の小口径ますが設置されるように なった。[0006] Therefore, in combination with such an effect and the recent increase in drainage equipments (eg, flush toilets, washing machines, etc.) in houses, a large number of small calibers have been installed.
【０００７】 そこで、前記のようにコンクリ−ト製マンホ−ルに関する問題点の発生と共に 、下水本管に塩ビパイプが採用されたので、コンクリ−ト製マンホ−ルとの接続 に難点が発生したことにより、公道においても、塩ビ製の小口径マンホ−ル（大 雑把にいえば、前記の小口径ますより掃除口管がスケ−ルアップしたもの）の出 現が要望されている。Therefore, as described above, along with the occurrence of the problems regarding the concrete-made manhole, a PVC pipe is adopted for the sewage main pipe, which causes a problem in connection with the concrete-made manhole. Therefore, on public roads as well, there is a demand for the appearance of a small-diameter manhole made of PVC (generally speaking, a cleaning-up pipe scaled up from the above-mentioned small-diameter masu).
【０００８】 しかしながら、かかる小口径マンホ−ルは、宅地内で用いられる小口径ますと 違い、公共の下水管きょ施設に用いられるので、次のような条件が加わる。However, unlike such a small-diameter manhole used in a residential area, such a small-diameter manhole is used in a public sewerage facility, and therefore the following conditions are added.
【０００９】 すなわち、一般に、下水道管きょは半永久的に使われ、原則として公道下に深 く埋設されるものであるから、使用する材料の品質は厳しくチエックされるのは 勿論、下水本管は自然流下方式であるため、厳しい施工精度が要求されている。 そのため、下水道工事の検査も一段と厳しく、例えば、施工段階毎の検査や出来 形管理と呼ばれる数値管理や写真撮影管理が行われている。例えば、この数値管 理では、マンホ−ルの高さの実測、マンホ−ルの深さの実測、内径、壁厚の実測 および下水本管の勾配等の検査が行われ、その結果を、測定結果一覧表に設計値 と並べて記入し、保存している。That is, in general, sewer pipes are used semi-permanently and, in principle, are deeply buried under public roads, so the quality of the materials used is of course strictly checked, and of course the sewer mains are checked. Is a free-flowing method, and therefore strict construction accuracy is required. Therefore, the inspection of sewer construction is more rigorous. For example, inspections at each construction stage and numerical control called photography control and photography control are performed. For example, in this numerical management, the height of the manhole is measured, the depth of the manhole is measured, the inner diameter and the wall thickness are measured, and the slope of the sewer main is inspected. It is stored in the result list alongside the design values.
【００１０】 したがって、塩ビ製の小口径マンホ−ルを採用しても、これらの厳しい品質、 施工精度および検査に対応しなければならない、という条件が加わる。Therefore, even if a small-diameter manhole made of vinyl chloride is adopted, there is an additional condition that these severe quality, construction accuracy and inspection must be dealt with.
【００１１】 ところで、一般のコンクリ−ト製マンホ−ルでは、マンホ−ルの深さ、形状寸 法、インバ−トの状態、および、マンホ−ル蓋または口環と路面とのすり合せ状 態、更には、蓋の納まり具合等は、完了点検事項として、厳しくチエックされる が、従来のマンホ−ルはコンクリ−ト製で、工事現場に合せて築造されるので、 これらの点検事項はその都度対応されていた。By the way, in a general concrete manhole, the depth of the manhole, the size and shape of the manhole, the state of the invert, and the fitting state of the manhole cover or mouth ring with the road surface. In addition, although the lid's fitting condition is strictly checked as a completion inspection item, since the conventional manhole is made of concrete and built according to the construction site, these inspection items are It was dealt with each time.
【００１２】 しかしながら、塩ビ製の小口径マンホ−ルを採用すれば、この塩ビ製マンホ− ルは寸法精度が高く、かつ、量産化された既製品となるため、マンホ−ルの深さ 、形状寸法、インバ−トの状態および下水本管との接続等については、コンクリ −ト製マンホ−ルに比べ、一段と施工精度は向上するものの、マンホ−ル蓋また は口環と、路面とのすり合せについては、更には、掃除口管の鉛直性については 、次のような問題が発生した。すなわち、本来、下水本管の勾配が、排水量や工 事現場の地形や土質、および地下埋設物の有無等によって、また、設計毎に異な ることから、更には、路面に傾斜の有無があることから、良好なすり合せや鉛直 性が得られにくい、つまり、完了点検に合格し難い、という問題が新しく発生し た。However, if a small-diameter manhole made of PVC is adopted, this PVC manhole has high dimensional accuracy and is a mass-produced ready-made product. Therefore, the depth and shape of the manhole are Regarding the dimensions, the condition of the invert, and the connection with the sewer main, the construction accuracy is further improved compared to the concrete manhole, but the manhole cover or mouth ring and the ground surface Regarding the alignment, and the verticality of the cleaning port pipe, the following problems occurred. In other words, the slope of the sewage main is originally different depending on the amount of drainage, the topography and soil quality of the construction site, the presence of underground buried objects, etc., and also for each design. Therefore, a new problem has arisen that it is difficult to obtain good joints and verticality, that is, it is difficult to pass the completion inspection.
【００１３】[0013]
そこで本考案は、かかる問題点を解決するために案出されたもので、その要旨 とするところは、１）道路下に埋設された塩ビ製下水本管に、塩ビ製小口径マン ホ−ルを設け、該小口径マンホ−ル本体に、口径３００〜５００mmφで、かつ、 上端に蓋を設けた点検筒を立設する点検筒用差口を設け、該点検筒用差口と点検 筒との間に、マンホ−ル本体に対する点検筒の取付角度を微調整するカラ−継手 を介在したことを特徴とする塩ビ製小口径マンホ−ルにあり、２）道路下に埋設 された塩ビ製下水本管に、塩ビ製小口径マンホ−ルを設け、該小口径マンホ−ル 本体に、口径３００〜５００mmφで、かつ、上端に内蓋を設けた点検筒を立設す る点検筒用差口を設け、前記内蓋を、円筒状本体と鉄蓋からなる保護鉄蓋で、空 間を介して、カバ−し、該保護鉄蓋を、前記点検筒に遊嵌した沈下防止板により 支持した小口径マンホ−ルにあって、前記点検筒用差口と点検筒との間に、マン ホ−ル本体に対する点検筒の取付角度を微調整するカラ−継手を介在したことを 特徴とする塩ビ製小口径マンホ−ルにある。Therefore, the present invention has been devised to solve such a problem, and the main points are as follows: 1) A PVC sewage main buried under a road and a PVC small-diameter manhole. The small-diameter manhole main body is provided with an inspection-cylinder inlet for arranging an inspection cylinder having a diameter of 300 to 500 mm and a lid at the upper end, and the inspection-cylinder inlet and the inspection cylinder are installed. A small-diameter PVC manhole is characterized in that a color joint for finely adjusting the mounting angle of the inspection cylinder to the main body of the manhole is interposed between the cylinder and the cylinder. 2) PVC buried under the road A small-diameter manhole made of PVC is installed on the main sewage pipe, and an inspection tube is installed upright on the main body of the small-diameter manhole with a diameter of 300 to 500 mm and an inner lid at the upper end. With a cylinder spigot, the inner lid is a protective iron lid consisting of a cylindrical body and an iron lid, and the -In a small-diameter manhole in which the protective iron lid is supported by a sinking prevention plate loosely fitted in the inspection cylinder, the manhole main body is provided between the inspection cylinder inlet and the inspection cylinder. It is a small-diameter PVC manhole characterized by interposing a color joint that finely adjusts the mounting angle of the inspection tube to the.
【００１４】[0014]
【実施例】 本考案の構成を、添付図面に示す第１、第２および第３の実施例により詳細に 述べる。 図１は本考案の第１の実施例の要部断面図、図２は第２の実施例の要部断面図 、図３は第３の実施例の要部断面分解図、図４はこれらの実施例に適用可能の参 考例である。Embodiments The constitution of the present invention will be described in detail with reference to the first, second and third embodiments shown in the accompanying drawings. FIG. 1 is a sectional view of an essential part of a first embodiment of the present invention, FIG. 2 is a sectional view of an essential part of a second embodiment, FIG. 3 is an exploded view of an essential part of a third embodiment, and FIG. It is a reference example applicable to the embodiment.
【００１５】 これらの実施例の塩ビ製小口径マンホ−ルは、公道下に約１m 以上の深さで埋 設された、口径１５０mmφの塩ビ製下水本管（不図示）に好適に設けられる。The PVC small-diameter manholes of these examples are suitable for a PVC sewer main pipe (not shown) having a diameter of 150 mm and buried under a public road at a depth of about 1 m or more. It is provided.
【００１６】 第１の実施例を述べる。 図１において、１は塩ビ製の小口径マンホ−ル（小口径ますの掃除口管より大 径の掃除口管、すなわち、点検筒６を備えたもので、点検筒６の大きさは、３０ ０〜５００mmφとなっている）本体であって、左右方向に下水本管の上流側ゴム 輪受口２と下流側差口３とが設けられ、横向きに９０°大曲りエルボからなる、 合流側本管用受口（不図示）が設けられ、上向きに点検筒用差口４が設けられて いる。A first embodiment will be described. In FIG. 1, reference numeral 1 denotes a small-diameter manhole made of PVC (a cleaning mouth pipe having a larger diameter than the cleaning mouth pipe of a small-diameter man, that is, an inspection pipe 6 is provided, and the inspection pipe 6 has a size of 30 a by which) the body becomes 0 to 500 mm phi, the lateral direction and the upstream side rubber ring socket 2 and the downstream Saguchi 3 sewage mains is provided, consisting of 90 ° Omagari Ri elbow sideways, A receiving port (not shown) for the main pipe on the confluence side is provided, and an inlet 4 for the inspection tube is provided upward.
【００１７】 この点検筒用差口４には、カラ−継手５を介して、点検筒６が接続されている 。この点検筒６の下端側は差口７に形成され、上端にはマンホ−ル蓋が設けられ ている（図３および図４参照）。An inspection cylinder 6 is connected to the inspection cylinder inlet 4 via a color joint 5. The lower end side of the inspection cylinder 6 is formed with a spigot 7, and the upper end is provided with a manhole cover (see FIGS. 3 and 4).
【００１８】 このカラ−継手５の上端側には、２条の第１および第２のゴム輪嵌合溝１７， １８が形成されている。第１のゴム輪嵌合溝１７には、シ−ル用のリップ付のゴ ム輪１７ａが嵌合され、第２のゴム輪嵌合溝１８には、内径が点検筒６より若干 小径となったストッパ−用の断面四角状のゴム輪１８ａが嵌合されている。また 、下端側には、通常のゴム輪受口２０が設けられている。このゴム輪受口２０と 第２のゴム輪嵌合溝１８との間に、縮径（約２９８mmφ）されたストッパ−部１ ６が設けられている。On the upper end side of the color joint 5, two first and second rubber ring fitting grooves 17, 18 are formed. A rubber wheel 17a with a lip for sealing is fitted in the first rubber ring fitting groove 17, and an inner diameter of the second rubber wheel fitting groove 18 is slightly smaller than that of the inspection tube 6. A rubber ring 18a having a square cross section for the stopper is fitted. Further, a normal rubber ring receiving port 20 is provided on the lower end side. During this rubber ring socket 20 of the second rubber ring fitting groove 18, diameter (about 298 mm phi) is the stopper - Part 1 6 is provided.
【００１９】 そして、このカラ−継手５は塩ビ製であって、軸長約４７０mm、径約３２０mm φの大きさで、ストッパ−部１６と第２のゴム輪嵌合溝１８とは約８０mm、第２ のゴム輪嵌合溝１８と第１のゴム輪嵌合溝１７とは７０mmの間隔となっている。The color joint 5 is made of vinyl chloride, has a shaft length of about 470 mm and a diameter of about 320 mm φ, and the stopper portion 16 and the second rubber ring fitting groove 18 are about the same. The distance between the second rubber ring fitting groove 18 and the first rubber ring fitting groove 17 is 80 mm , and the distance is 70 mm .
【００２０】 したがって、第１の実施例の点検筒６は、マンホ−ル本体１に対し、左右方向 の取付角度が５°調整でき、マンホ−ル本体１が下水本管の勾配のため、設計値 より傾いても、点検筒６はゴム輪受口２０によって首振り調整ができ鉛直性を保 持できる。Therefore, the inspection tube 6 of the first embodiment can be designed by adjusting the mounting angle in the left-right direction with respect to the manhole main body 1 by 5 °, and the manhole main body 1 has a slope of the main sewer pipe. Even if the inspection cylinder 6 is tilted more than the value, the inspection cylinder 6 can be swung by the rubber ring socket 20 to maintain verticality.
【００２１】 次に、第２の実施例を述べる。 図２において、第１の実施例と相違して、カラ−継手５の下端側には自在継手 ２１を設けている。この自在継手２１は、カラ−継手本体の下端側に球体部２２ を成形し、この球体部２２にＯリング２３およびゴム輪２４を挟んで第１および 第２の内嵌リング２５，２６を嵌合し、これらの内嵌リング２５，２６に点検筒 用差口４を挿入している。Next, a second embodiment will be described. In FIG. 2, unlike the first embodiment, a universal joint 21 is provided on the lower end side of the color joint 5. In this universal joint 21, a spherical body 22 is formed on the lower end side of the color joint main body, and an O-ring 23 and a rubber ring 24 are sandwiched between the spherical body 22 and the first and second inner fitting rings 25, 26 are fitted therein. In addition, the inspection cylinder inlet 4 is inserted into these inner fitting rings 25 and 26.
【００２２】 したがって、このカラ−継手５は、マンホ−ル本体１に対し１０〜１５°の角 度で調整できる。Therefore, the color joint 5 can be adjusted at an angle of 10 to 15 ° with respect to the manhole body 1.
【００２３】 次に、第３の実施例を述べる。 図３において、第１の実施例と相違して、カラ−継手５の下端側に点検筒用差 口４が挿入する受口１４を設け、その下端に断面Ｕ字状のＵシ−ル１５を嵌合し ている。この受口１４はテ−パのない受口になっている。Next, a third embodiment will be described. In FIG. 3, unlike the first embodiment, a receiving port 14 into which the inspection tube insertion port 4 is inserted is provided at the lower end side of the color joint 5, and a U seal 15 having a U-shaped cross section is provided at the lower end thereof. Are fitted. This receptacle 14 is a receptacle without a taper.
【００２４】 したがって、このカラ−継手５は、マンホ−ル本体１に対し４〜５°の角度で 調整できる。Therefore, the color joint 5 can be adjusted at an angle of 4 to 5 ° with respect to the manhole body 1.
【００２５】 第３の実施例では、点検筒６の上端に内蓋８が設けられ、この内蓋８は、図４ に示すように保護鉄蓋９により空間を介して、カバ−されている。この保護鉄蓋 ９は、円筒状の本体１０と、この本体１０の上面に開閉自在に設けられた鉄蓋１ １とから構成されている。この本体１０の下端外周にフランジ１２が設けられ、 このフランジ１２がド−ナツ状の沈下防止板１３に載置されて保護鉄蓋９を支持 している。In the third embodiment, an inner lid 8 is provided on the upper end of the inspection cylinder 6, and the inner lid 8 is covered by a protective iron lid 9 through a space as shown in FIG. . The protective iron lid 9 is composed of a cylindrical main body 10 and an iron lid 11 provided on the upper surface of the main body 10 so as to be openable and closable. A flange 12 is provided on the outer periphery of the lower end of the main body 10, and the flange 12 is placed on a donut-shaped sinking prevention plate 13 to support the protective iron lid 9.
【００２６】 次に、第３の実施例の作用を述べる。マンホ−ル本体１の点検筒用差口４にカ ラ−継手５を挿入して点検筒用差口４の先端をストッパ−部１６に当接させる。 このマンホ−ル本体１を、公道に掘削された溝に仮設置する。次いで、深さ測定 棒（不図示）によって、地表ＧＬからマンホ−ル本体１迄の深さＨを測り、設計 通りに埋設できたかどうかを確認する。次に、深さＨからｈ1 を引いた長さで点 検筒６の上端側を切管し、この切管された点検筒６をカラ−継手５の第２のゴム 輪嵌入溝１８に嵌入された断面４角状のゴム輪１８ａの所迄挿入してストップさ せる。その結果、当該マンホ−ル本体１に必要な配管勾配に対応して点検筒６は 約４°以内の角度調整ができるので、点検筒６は鉛直状にセットすることができ る。次いで、この点検筒６の周辺を充分に突き固めてから、沈下防止板１３を設 置する。その後、沈下防止板１３の上に保護鉄蓋９を載置してから、周辺を充分 に突き固めて埋め戻しをする。その後、コンクリ−トまたはアスファルト１９を 舗装する。セット後、保護鉄蓋９と内蓋８との間には空間を設けているので、保 護鉄蓋９に予想されている荷重がかかっても、内蓋８にはこの荷重はかからない 。一方、予想外の大荷重がかかったり、沈下防止板１３が予想外に沈下すれば、 保護鉄蓋９にかかる荷重がそのまま内蓋８に伝えられる。そのとき、点検筒６は 第２のゴム輪嵌入溝１８に嵌入されたゴム輪１８ａの摩耗抵抗に抗して、ストッ パ−部１６迄滑り落ちるので、点検筒６およびマンホ−ル本体１は破損しない。Next, the operation of the third embodiment will be described. Insert the color joint 5 into the inspection cylinder inlet 4 of the manhole main body 1 and bring the tip of the inspection cylinder inlet 4 into contact with the stopper portion 16. This manhole body 1 is temporarily installed in a groove excavated on a public road. Next, the depth H from the ground surface GL to the manhole main body 1 is measured with a depth measuring rod (not shown), and it is confirmed whether or not it was buried as designed. Next, the upper end side of the inspection cylinder 6 is cut into a tube with a length obtained by subtracting h 1 from the depth H, and the cut inspection tube 6 is inserted into the second rubber ring fitting groove 18 of the color joint 5. The rubber ring 18a having a square cross section inserted is inserted and stopped. As a result, since the inspection tube 6 can be adjusted within an angle of about 4 ° according to the pipe gradient required for the manhole body 1, the inspection tube 6 can be set vertically. Next, the periphery of the inspection tube 6 is sufficiently tamped, and then the subsidence prevention plate 13 is installed. After that, the protective iron lid 9 is placed on the subsidence prevention plate 13, and then the periphery is sufficiently tamped to backfill. After that, concrete or asphalt 19 is paved. Since a space is provided between the protective iron lid 9 and the inner lid 8 after setting, even if the expected load is applied to the protective iron lid 9, the inner lid 8 is not subjected to this load. On the other hand, if an unexpectedly large load is applied or the sinking prevention plate 13 sinks unexpectedly, the load applied to the protective iron lid 9 is transmitted to the inner lid 8 as it is. At that time, the inspection cylinder 6 slides down to the stopper portion 16 against the abrasion resistance of the rubber ring 18a fitted in the second rubber ring fitting groove 18, so that the inspection cylinder 6 and the manhole body 1 are damaged. do not do.
【００２７】 なお、第１の実施例のカラ−継手５は、上端側に第１および第２のゴム輪嵌合 溝１７，１８を形成し、下端側にゴム輪受口２０を形成しているが、本考案はこ れに限らず、この１７，１８と２０とを上下逆にしてもよく、また、上端側の第 １および第２のゴム輪嵌合溝１７，１８を止め、下端側のゴム輪受口２０と同様 のものを逆向きに設けてもよい。また、第２の実施例で、上端側にゴム輪受口を 設けてもよく、また、その上下逆にしてもよい。すなわち、上端側を自在継手、 下端側をゴム輪受口としてもよい。 また、点検筒６のマンホ−ル蓋は、傾斜路面用蓋（口環が傾斜状に切断された もの）を用いてもよい。In the color joint 5 of the first embodiment, the first and second rubber ring fitting grooves 17 and 18 are formed on the upper end side, and the rubber ring receiving port 20 is formed on the lower end side. However, the present invention is not limited to this, and these 17, 18 and 20 may be turned upside down, and the first and second rubber ring fitting grooves 17 and 18 on the upper end side may be stopped and the lower end. The same thing as the rubber ring receptacle 20 on the side may be provided in the opposite direction. Further, in the second embodiment, a rubber ring receiving port may be provided on the upper end side, or the rubber ring receiving port may be turned upside down. That is, the upper end side may be the universal joint and the lower end side may be the rubber ring receiving port. Further, the manhole cover of the inspection tube 6 may be a slope road surface cover (the mouth ring is cut in an inclined shape).
【００２８】[0028]
本考案によれば、マンホ−ル本体に点検筒用差口を設け、これにカラ−継手を 介在させて点検筒の取付角度を微調整できるようにしたので、大量生産され、か つ、寸法精度の高いマンホ−ル本体でありながら、下水本管の多様な勾配に対応 して、点検筒を鉛直方向に調整でき、ひいては、点検視認に支障を与えないばか りか、点検筒の蓋と路面とのすり合せも良好となって、寸法精度の高いマンホ− ル本体と相俟って、マンホ−ルの施工精度を向上させる。 According to the present invention, the manhole main body is provided with the inspection tube inlet, and the color joint is interposed between the manhole main body and the mounting angle of the inspection tube, so that the inspection tube can be finely adjusted. In spite of being a highly accurate manhole body, the inspection pipe can be adjusted in the vertical direction according to various gradients of the sewer main. With the good fit of the manhole, the manhole main body, which has high dimensional accuracy, improves the manhole construction accuracy.
【図１】本考案の第１の実施例の要部断面図である。FIG. 1 is a sectional view of an essential part of a first embodiment of the present invention.
【図２】第２の実施例の要部断面図である。FIG. 2 is a sectional view of a main part of a second embodiment.
【図３】第３の実施例の要部断面分解図である。FIG. 3 is an exploded cross-sectional view of main parts of a third embodiment.
【図４】これらの実施例に適用可能の参考例である。FIG. 4 is a reference example applicable to these examples.
１…マンホ−ル本体、４…点検筒用差口、５…カラ−継
手、６…点検筒、８…内蓋、９…保護鉄蓋、１０…本
体、１１…鉄蓋、１３…沈下防止板DESCRIPTION OF SYMBOLS 1 ... Manhole main body, 4 ... Inspection cylinder outlet, 5 ... Color joint, 6 ... Inspection cylinder, 8 ... Inner lid, 9 ... Protective iron lid, 10 ... Main body, 11 ... Iron lid, 13 ... Settling prevention Board
Claims (2)
塩ビ製小口径マンホ−ルを設け、該小口径マンホ−ル本
体に、口径３００〜５００mmφで、かつ、上端に蓋を設
けた点検筒を立設する点検筒用差口を設け、該点検筒用
差口と点検筒との間に、マンホ−ル本体に対する点検筒
の取付角度を微調整するカラ−継手を介在したことを特
徴とする塩ビ製小口径マンホ−ル。1. A PVC sewage mains buried under a road,
PVC small diameter sailing - provided Le, said small diameter sailing - the reel body, in diameter 300 to 500 mm phi, and, provided the inspection tube for differential port erected inspection tube having a lid at the upper end, the A small-diameter manhole made of PVC, characterized in that a color joint for finely adjusting the mounting angle of the inspection tube with respect to the main body of the manhole is interposed between the inspection tube inlet and the inspection tube.
塩ビ製小口径マンホ−ルを設け、該小口径マンホ−ル本
体に、口径３００〜５００mmφで、かつ、上端に内蓋を
設けた点検筒を立設する点検筒用差口を設け、前記内蓋
を、円筒状本体と鉄蓋からなる保護鉄蓋で、空間を介し
て、カバ−し、該保護鉄蓋を、前記点検筒に遊嵌した沈
下防止板により支持した小口径マンホ−ルにあって、 前記点検筒用差口と点検筒との間に、マンホ−ル本体に
対する点検筒の取付角度を微調整するカラ−継手を介在
したことを特徴とする塩ビ製小口径マンホ−ル。2. A PVC main sewer main buried under a road,
A small-diameter manhole made of PVC is provided, and a small-diameter manhole main body is provided with an inspection-cylinder inlet for vertically arranging an inspection cylinder having an inner diameter of 300 to 500 mm and an upper lid. The inner lid is a protective iron lid composed of a cylindrical body and an iron lid, is covered through a space, and the protective iron lid is supported by a sinking prevention plate loosely fitted in the inspection tube. In this case, a small-diameter polyvinyl chloride man-hole made of PVC is characterized in that a color joint for finely adjusting the mounting angle of the inspection cylinder to the main body of the manhole is interposed between the inspection cylinder inlet and the inspection cylinder. Le.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992045381U JP2544132Y2 (en) | 1992-06-04 | 1992-06-04 | PVC small diameter manhole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992045381U JP2544132Y2 (en) | 1992-06-04 | 1992-06-04 | PVC small diameter manhole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0596144U true JPH0596144U (en) | 1993-12-27 |
| JP2544132Y2 JP2544132Y2 (en) | 1997-08-13 |
Family
ID=12717696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992045381U Expired - Lifetime JP2544132Y2 (en) | 1992-06-04 | 1992-06-04 | PVC small diameter manhole |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2544132Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010059774A (en) * | 2008-08-05 | 2010-03-18 | M & K Service:Kk | Lid structure for water works, sewerage or gas |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3005792U (en) * | 1994-06-29 | 1995-01-10 | 友克 成川 | Accessory storage bag |
| JP3058384U (en) * | 1998-10-12 | 1999-06-18 | ▲ゆう▼財 林 | Motorcycle power system with twin motors |
| JP3062132U (en) * | 1999-03-12 | 1999-09-28 | 三洋電機株式会社 | Remote control device |
-
1992
- 1992-06-04 JP JP1992045381U patent/JP2544132Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3005792U (en) * | 1994-06-29 | 1995-01-10 | 友克 成川 | Accessory storage bag |
| JP3058384U (en) * | 1998-10-12 | 1999-06-18 | ▲ゆう▼財 林 | Motorcycle power system with twin motors |
| JP3062132U (en) * | 1999-03-12 | 1999-09-28 | 三洋電機株式会社 | Remote control device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010059774A (en) * | 2008-08-05 | 2010-03-18 | M & K Service:Kk | Lid structure for water works, sewerage or gas |
| JP4582555B2 (en) * | 2008-08-05 | 2010-11-17 | 有限会社Ｍ＆Ｋサービス | Water supply, sewerage or gas lid structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2544132Y2 (en) | 1997-08-13 |
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