JPH10266247A - Manhole cover receiving frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manhole cover receiving frame which can perform a level raise exceeding a height of an outer cylinder body and its fine adjustment. SOLUTION: Receiving seats 3 where a jacking bolt 4 is respectively screw-fitted to a nut 7 in a horizontal hole housing part 6, are arranged in three places in an inside lower part, and a cover receiving frame body 10 on which an outside dimater internally installed on the receiving seats 3 in an outer cylinder body 1 is formed as an outside diameter slightly smaller than an inside diameter of the upper port edge 9 of the outer cylinder body 1 and an auxiliary underfrathe 10' under which a projecting part having a jack bolt inserting hole is arranged, are engaged with and internally installed in the outer cylinder body 1 where the upper port edge 9 is projected inside. Bifurcated head part engaging parts 11 and 11' with which a jack bolt 8 is engaged are arranged in two stages in three places inside of the cover receiving frame body 10, and a stopper 12 is arranged on the jack bolt 8 so as to be positioned between these engaging projections 11 and 11' arranged in two stages. A level raise adjusing spacer 17, a level raise fine adjustment spacer 18 and a receiving seat piece 19 are inserted between the receiving seats 3 of the outer cylinder body 1 and an under surface of the cover receiving frame body 10, and an upper surface of the receiving seat piece 19 and an under surface of the cover receiving frame body 10 are formed as a spherical surface joining structure.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、上下水道用マンホ
ールや消火栓用マンホール構築物等の地下構造物のマン
ホール蓋受枠に閏するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leap in a manhole cover receiving frame of an underground structure such as a manhole for water supply and sewerage and a manhole structure for a fire hydrant.

【０００２】[0002]

【従来の技術分野】上下水道用マンホールや消火栓用マ
ンホール構築物等を構築する場合、マンホール蓋上面は
路面と一致しないことが多い。このような場合、従来
は、マンホール蓋受枠とマンホール側塊との間に調整リ
ングを挿入したり、あるいはマンホール蓋受枠のフラン
ジに適数本の高さ調整ボルトを設けてマンホール蓋受枠
の上面を路面に合わせた後、マンホール蓋受枠下面とマ
ンホール側塊間に速乾性の充填材を注入したりしてお
り、マンホール蓋上面を路面に合わせるための調整作業
は思いの外手間を要する作業であるため、短時間で調整
作業を行うことができる構造、手段の出現が望まれてい
た。2. Description of the Related Art When constructing manhole structures for water and sewage systems and fire hydrants, the upper surface of the manhole cover often does not coincide with the road surface. In such a case, conventionally, an adjusting ring is inserted between the manhole cover receiving frame and the manhole side lump, or an appropriate number of height adjusting bolts are provided on the flange of the manhole cover receiving frame to make the upper surface of the manhole cover receiving frame. After adjusting to the road surface, fast-drying filler is injected between the lower surface of the manhole cover receiving frame and the manhole side mass, and the adjustment work for adjusting the upper surface of the manhole cover to the road surface is an operation that requires extra work, The appearance of a structure and means capable of performing adjustment work in a short time has been desired.

【０００３】この要望に応えるものとして、本発明者
は、内側下部に受座を設けた外筒体内に、外径を前記外
筒体の上部口縁の内径より若干小さい外径とした蓋受枠
体を内装し、該蓋受枠体を前記受座に設けたジャッキ用
ボルトで昇降するように構成したマンホール蓋受枠を実
用化し、蓋受枠体を路面に合わせる場合、ジャッキ用ボ
ルトで蓋受枠体を上昇させた後、蓋受枠体と外筒体の受
座間に嵩上げ調整用リング（高さ調整用リング）を適宜
積み上げることにより対応することを考案したが、嵩上
げ量は蓋受枠体の高さを超えることができないという問
題があった。In response to this demand, the present inventor has proposed a lid receiving frame having an outer diameter slightly smaller than an inner diameter of an upper edge of the outer cylindrical body in an outer cylindrical body provided with a receiving seat at an inner lower portion. When a manhole cover receiving frame configured to lift and lower the cover receiving frame with the jack bolt provided on the seat is put into practical use, and the cover receiving frame is adjusted to the road surface, the cover receiving frame is fixed by the jack bolt. After being raised, it was devised to cope by appropriately stacking a raising-adjustment ring (a height-adjusting ring) between the lid receiving frame and the seat of the outer cylinder, but the amount of raising is determined by adjusting the height of the lid receiving frame. There was a problem that it could not be exceeded.

【０００４】[0004]

【発明が解決しようとする課題】そこで本発明は、外筒
体の高さを超える嵩上げ及びその微調整を行うことがで
きるマンホール蓋受枠を提供しようとするものである。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a manhole cover receiving frame capable of raising the height exceeding the height of the outer cylinder and finely adjusting the height.

【０００５】[0005]

【課題を解決するための手段】本発明は上記の課題を解
決するためになされたもので、内側下部に受座を設けた
外筒体内に、外径を前記外筒体の上部口縁の内径より若
干小さい外径とした蓋受枠体を内装し、該蓋受枠体を前
記受座に設けたジャッキ用ボルトで昇降するように構成
したマンホール蓋受枠において、蓋受枠体と外筒体の受
座間に前記ジャッキ用ボルト挿入孔を有する突部を設け
た補助台枠を設け、且つこの補助台枠と蓋受枠体を係合
させるずれ止め手段を設けたものである。SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and has an outer diameter of an upper edge of the outer cylindrical body provided in an outer cylindrical body provided with a seat at an inner lower portion. In a manhole cover receiving frame in which a lid receiving frame having an outer diameter slightly smaller than the inner diameter is provided and the lid receiving frame is lifted and lowered by a jack bolt provided on the seat, the receiving of the lid receiving frame and the outer cylindrical body is performed. An auxiliary frame provided with a projection having the jack bolt insertion hole between the seats is provided, and a shift preventing means for engaging the auxiliary frame with the lid receiving frame is provided.

【０００６】[0006]

【作用】嵩上げ、嵩下げ微調整機能を損うことなく、大
巾に嵩上げ量を増大し得るマンホール蓋受枠が得られ
る。According to the present invention, a manhole cover receiving frame capable of greatly increasing the amount of raising can be obtained without impairing the fine adjustment function of raising and lowering the height.

【０００７】[0007]

【発明の実施の形態】図は本発明の一実施例を示すもの
で、図１は平面図、図２は一部を截断した拡大側面図、
図３は蓋受枠体の平面図、図４は補助台枠の平面図、図
５は嵩上げ調整用スペーサーの拡大図で、（ａ）図は平
面図、（ｂ）図は同正面図、図６は嵩上げ微調整用スペ
ーサーの拡大図、（ａ）図は平面図、（ｂ）図は同正面
図、図７は受座片の拡大図で、（ａ）図は正面図、
（ｂ）図は平面図、（ｃ）図は異なる実施例の平面図で
ある。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention. FIG. 1 is a plan view, FIG.
3 is a plan view of the lid receiving frame, FIG. 4 is a plan view of the auxiliary underframe, FIG. 5 is an enlarged view of the spacer for adjusting the raising, FIG. 3A is a plan view, FIG. 6 is an enlarged view of a spacer for fine adjustment of the raising, FIG. 7A is a plan view, FIG. 7B is a front view of the same, FIG. 7 is an enlarged view of a receiving piece, and FIG.
(B) is a plan view, and (c) is a plan view of a different embodiment.

【０００８】図において、１は外側にマンホール側塊取
付用フランジ２を設け、且つ内側下部に受座３と、３箇
所にバカ孔４を備えたジャッキ用ボルト取付部５，５，
５を設けると共に、前記バカ孔４を通して横穴収納部６
に挿入したナット７にそれぞれジャッキ用ボルト８，
８，８を螺合し、上部口縁９を内側に突出させた外筒体
である。In FIG. 1, reference numeral 1 denotes a jack bolt mounting portion 5 provided with a manhole-side lump mounting flange 2 on the outside, a receiving seat 3 on a lower portion on the inside, and a fool hole 4 at three places.
5 and the side hole storage portion 6 through the stupid hole 4.
To the nut 7 inserted into the jack bolt 8,
The outer cylindrical body is formed by screwing the upper and lower portions 8 and 8 and projecting the upper lip 9 inward.

【０００９】１０は前記外筒体１内の受座３上を昇降す
る外径が前記外筒体１の上部口縁９の内径より若干小さ
い外径とした蓋受枠体で、図３に示すように３箇所に前
記ジャッキ用ボルト８を係合させる２股状の頭部係合部
１１，１１’が図４に示すように２段に設けられてい
る。Reference numeral 10 denotes a lid receiving frame body having an outer diameter which rises and lowers on the receiving seat 3 in the outer cylindrical body 1 and has an outer diameter slightly smaller than the inner diameter of the upper rim 9 of the outer cylindrical body 1 as shown in FIG. As shown in FIG. 4, the forked head engaging portions 11 and 11 'for engaging the jack bolts 8 at three locations are provided in two stages as shown in FIG.

【００１０】１２は、座金１３，１４とナット１５から
成るストッパーで、座金１３とナット１５はジャッキ用
ボルト８を回動しても軸方向には移動しないようにジャ
ッキ用ボルト８にしっかりと緊締されていて、これらス
トッパー１２を構成する部材は２段に設けた頭部係合部
１１，１１’の間に位置するように設けられる。なお１
６はボルト頭の下に設けた座金である。Reference numeral 12 denotes a stopper composed of washers 13, 14 and a nut 15. The washer 13 and the nut 15 are tightly fastened to the jack bolt 8 so as not to move in the axial direction even when the jack bolt 8 is rotated. The members constituting the stopper 12 are provided so as to be located between the head engaging portions 11 and 11 'provided in two stages. 1
6 is a washer provided under the head of the bolt.

【００１１】１０’は図４に示すように外径を前記蓋受
枠体１０と同一とした補助台枠で、前記ジャッキ用ボル
ト８の入孔１０１を設けた突部１０２と、前記蓋受枠体
１０の下面に設けた凹部Ｍと係合する凸部Ｎがそれぞれ
３箇所に設けられている。この実施例では、ずれ止め手
段として、互に係合する凹部Ｍと凸部Ｎを蓋受枠体１０
と補助台枠１０’に設けたが、何れかの内側縁に下方又
は上方に突出するずれ止用突起を設けるようにしてもよ
い。Reference numeral 10 'denotes an auxiliary underframe having the same outer diameter as the lid receiving frame 10 as shown in FIG. 4, and a projection 102 provided with an insertion hole 101 for the jack bolt 8; Protrusions N that engage with recesses M provided on the lower surface of 10 are provided at three places. In this embodiment, a concave portion M and a convex portion N which are engaged with each other are used as slip prevention means.
And the auxiliary underframe 10 ′, but any one of the inner edges may be provided with a downwardly or upwardly protruding stopper projection.

【００１２】１７は前記外筒体１の受座３と蓋受枠体１
０の間に挿入した嵩上げ調節用スペーサーで、図５に示
すように形成したもので、ジャッキ用ボルト８と係合さ
せるフック状部１７ａを持ったものである。Reference numeral 17 denotes a seat 3 for the outer cylinder 1 and a lid receiving frame 1.
This is a spacer for height adjustment inserted between 0 and is formed as shown in FIG. 5, and has a hook-like portion 17a to be engaged with the jack bolt 8.

【００１３】１８は嵩上げ微調整用スペーサーで、図６
に示すように板材で作られていて、嵩上げ調整スペーサ
ー１７の腕１７ｂ，１７ｂをカットした形状としたもの
である。Numeral 18 is a spacer for fine adjustment of raising, which is shown in FIG.
As shown in FIG. 5, the arm 17b of the raising adjustment spacer 17 is cut into a shape.

【００１４】１９は、蓋受枠体１０と微調整用スペーサ
ー１８又は嵩上げ調節用スペーサー１７間に設ける受座
片で、蓋受枠体１０と球面接触する構造となっている。Reference numeral 19 denotes a seating piece provided between the lid receiving frame 10 and the fine adjustment spacer 18 or the raising adjustment spacer 17, and has a structure that makes spherical contact with the lid receiving frame 10.

【００１５】図４で例示した実施例では、蓋受枠体１０
の下面に凹面Ｐを設け、受座片１９の上面は図７に示す
ようにその凹面Ｐと係合する凸面Ｑとして、球面接合す
る構造とし、また横からジャッキ用ボルト８に係合させ
易いように切欠１９ａを設けフック状に形成されてい
る。なお図７の（ｃ）図のように蛇の目状のものとして
もよいことは勿論である。In the embodiment illustrated in FIG. 4, the lid receiving frame 10
7, a concave surface P is provided on the lower surface of the seat, and the upper surface of the receiving piece 19 is formed as a convex surface Q engaging with the concave surface P as shown in FIG. Notch 19a so as to form a hook. Needless to say, a snake-like shape may be used as shown in FIG.

【００１６】本実施例の組立手順について説明すれば、
先ず蓋受枠体１０の３箇所にある頭部係合部１１，１
１’に座金１６及びストッパー１２を付したジャッキ用
ボルト８，８，８を係合させた後、補助台枠１０’のジ
ャッキ用ボルトの挿入孔１０１，１０１，１０１に挿入
して、蓋受枠体１０と補助台枠１０’を外筒体１内に下
し、ジャッキ用ボルト８，８，８を各ナット７に螺合さ
せ、適数枚の嵩上げ調整用スペーサー１７及び嵩上げ微
調整用スペーサー１８と受座片１９を現場の状況に応じ
て装着する。The assembly procedure of this embodiment will be described.
First, the head engaging portions 11, 1 at three places of the lid receiving frame 10
After the jack bolts 8, 8, 8 provided with the washer 16 and the stopper 12 are engaged with 1 ′, they are inserted into the jack bolt insertion holes 101, 101, 101 of the auxiliary underframe 10 ′, and the lid receiving frame is formed. The body 10 and the auxiliary underframe 10 ′ are lowered into the outer cylinder 1, and the jack bolts 8, 8, 8 are screwed into the respective nuts 7, and an appropriate number of spacers 17 and 17 are finely adjusted. 18 and the seating piece 19 are mounted according to the situation at the site.

【００１７】次に本発明にかゝるマンホール蓋受枠にお
ける嵩上げ、嵩下げの微調整作業の手順について説明す
る。Next, a procedure for fine adjustment of raising and lowering the height of the manhole cover receiving frame according to the present invention will be described.

【００１８】まず、嵩上げの場合は、図１及び図２にお
いて、ジャッキ用ボルト８，８，８を回動して蓋受枠体
１０の上面を上昇させて路面と一致させ、蓋受枠体１０
の下面に出来た空隙に前述の各スペーサーを現場の状況
に応じて挿入し、嵩上げ調整が終ったならばボルト８，
８，８を緊締して蓋受枠体１０を固定する。First, in the case of raising the height, in FIGS. 1 and 2, the jack bolts 8, 8, 8 are turned to raise the upper surface of the lid receiving frame 10 so as to match the road surface.
Insert the above-mentioned spacers into the gaps formed on the lower surface of the bolts according to the situation at the site.
The lid receiving frame 10 is fixed by tightening 8, 8.

【００１９】一方嵩下げ作業のときは、先ずボルト８，
８，８を逆回転させて蓋受枠体１０を上昇させた後不要
のスペーサーを抜き、次に正回転させて蓋受枠体１０を
降下させ、路面と一致したならば、蓋受枠体１０の下に
所要のスペーサーを挿入し、ボルト８を締め固定する。On the other hand, at the time of lowering work, first, bolts 8 and
8, 8 is rotated in the reverse direction to raise the lid receiving frame 10, and then an unnecessary spacer is removed. Then, the lid receiving frame 10 is rotated forward to lower the lid receiving frame 10. Then, a required spacer is inserted and the bolt 8 is tightened and fixed.

【００２０】従来の構造であると、前述のように嵩上
げ、嵩下げ作業の前に周囲のアスファルト路面を掘る必
要があったが、本発明の場合、その必要は全く無く、ジ
ャッキ用ボルト８，８，８を回動することにより受枠体
１０はアスファルト舗装から切り離され簡単に昇降させ
ることができ、作業終了後蓋受枠体１０とアスファルト
路面間に出来た隙間にコーキング材を充填するという簡
単な作業で工事完了となり、工期は数１０分又は数時間
という短時間で終了することが可能である。With the conventional structure, as described above, it was necessary to dig the surrounding asphalt road surface before raising and lowering the work. In the case of the present invention, however, there is no need to dig the asphalt road surface. By pivoting 8, 8, the receiving frame 10 is separated from the asphalt pavement and can be easily raised and lowered. After the work is completed, a caulking material is filled in a gap formed between the lid receiving frame 10 and the asphalt road surface. The work is completed by the work, and the work period can be completed in a short time of several tens of minutes or several hours.

【００２１】次に敷設時における傾斜角調整作業の手順
について説明すると、その要領は前述の嵩上げ、嵩下げ
作業と同様であり、この場合蓋受枠体１０の上面、即ち
マンホール蓋の上面が路面の傾斜と一致するようにボル
ト８，８，８を操作すればよい。Next, the procedure for adjusting the inclination angle at the time of laying will be described. The procedure is the same as the above-mentioned raising and lowering work. In this case, the upper surface of the lid receiving frame 10, that is, the upper surface of the manhole cover is placed on the road surface. The bolts 8, 8, 8 may be operated so as to match the inclination.

【００２２】実施例では通常の６５０ｍｍマンホールの
場合、外筒体１の高さを１１０ｍｍとし、外筒体１の上
部口縁９と蓋受枠体１０の間隙を８ｍｍ，外筒体１の胴
部内面と蓋受体１０の外周面間の間隙を３ｍｍとした
時、０゜から約８゜の傾斜に変化させることができ、ま
た、図示の実施例では、ジャッキ用ボルト８及びナット
７がその傾斜に応じて傾斜し、嵩上げ調整用スペーサー
１７と嵩上げ微調整用スペーサー１８の枚数を調整する
ことにより、傾斜させた位置に蓋受枠体１０をしっかり
と固定させることができ、充分実用に供することができ
る。In the embodiment, in the case of a normal 650 mm manhole, the height of the outer cylinder 1 is 110 mm, the gap between the upper edge 9 of the outer cylinder 1 and the lid receiving frame 10 is 8 mm, and the body of the outer cylinder 1 is When the gap between the inner surface and the outer peripheral surface of the lid receiver 10 is 3 mm, the inclination can be changed from 0 ° to about 8 °. In the illustrated embodiment, the jack bolt 8 and the nut 7 are the same. By inclining according to the inclination and adjusting the number of the spacers 17 for adjusting the raising and the spacer 18 for adjusting the raising finely, the lid receiving frame 10 can be firmly fixed at the inclined position, so that it can be put to practical use. Can be.

【００２３】[0023]

【発明の効果】一般のマンホール工事においては、マン
ホール側塊上にマンホール蓋受枠を敷設する場合、直接
マンホール蓋受枠をマンホール側塊上に置くことなく、
前述のようにコンクリート製の調整リングをマンホール
側塊と蓋受枠間に挿入し、微調整は連乾性の充填材を注
入することによって行っているが、間に挿入及び注入す
る作業であるため意外に面倒なものである。In the general manhole construction, when the manhole cover receiving frame is laid on the manhole side block, the manhole cover receiving frame is not directly placed on the manhole block.
As described above, a concrete adjustment ring is inserted between the manhole side lump and the lid receiving frame, and fine adjustment is performed by injecting a continuously dry filler, but it is unexpectedly inserted and injected between them. It is troublesome.

【００２４】本発明によると、補助台枠が従来の調整リ
ングと同様の効果があり、従って調整リング挿入作業は
不要となり、また、充填材の注入による微調整作業は不
要となるので、作業の迅速化を図ることができる。According to the present invention, the auxiliary underframe has the same effect as the conventional adjustment ring, so that the operation of inserting the adjustment ring becomes unnecessary, and the fine adjustment operation by injecting the filling material becomes unnecessary. Speeding up can be achieved.

【００２５】また、補助台枠の係合用の凸部Ｎと蓋受枠
体の凹部Ｍとを嵌合させることにより蓋受枠体と補助台
枠とは一体化し、ぐらつくことがなく、ジャッキ用ボル
トを締め付けることにより外筒体にしっかりと固定され
る効果があり、実用上マンホール蓋受枠の構造として勝
れたものである。Further, by fitting the engaging projection N of the auxiliary underframe with the concave portion M of the lid receiving frame, the lid receiving frame and the auxiliary underframe are integrated with each other, so that the jack bolt is not shaken. By tightening, it has the effect of being firmly fixed to the outer cylinder, and in practice it has won the structure of the manhole cover receiving frame.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の実施例の平面図である。FIG. 1 is a plan view of an embodiment of the present invention.

【図２】本発明の実施例の一部を截断した拡大側面図で
ある。FIG. 2 is an enlarged side view of a part of the embodiment of the present invention.

【図３】本発明の実施例における蓋受枠体の平面図であ
る。FIG. 3 is a plan view of a lid receiving frame according to the embodiment of the present invention.

【図４】本発明の実施例の補助台枠の平面図である。FIG. 4 is a plan view of an auxiliary underframe according to the embodiment of the present invention.

【図５】本発明の実施例における嵩上げ調整用スペーサ
ーの拡大図で、（ａ）は平面図、（ｂ）は同正面図であ
る。FIGS. 5A and 5B are enlarged views of a raising adjustment spacer according to the embodiment of the present invention, wherein FIG. 5A is a plan view and FIG.

【図６】本発明実施例における嵩上げ調整用スペーサー
の拡大図で、（ａ）は平面図、（ｂ）は同正面図であ
る。FIGS. 6A and 6B are enlarged views of a spacer for adjusting raising according to the embodiment of the present invention, wherein FIG. 6A is a plan view and FIG.

【図７】本発明実施例における受座片の拡大図を示すも
ので、（ａ）図は正面、（ｂ）図は平面図、（ｃ）図は
異なる受座片の平面図である。FIGS. 7A and 7B are enlarged views of a receiving piece in the embodiment of the present invention, wherein FIG. 7A is a front view, FIG. 7B is a plan view, and FIG. 7C is a plan view of a different receiving piece.

【符号の説明】[Explanation of symbols]

１ 外筒体 ２ フランジ ３ 受座 ４ バカ孔 ５ 取付部 ６ 横穴収納部 ７，１５ ナット ８ ジャッキ用ボルト ９ 上部口縁 １０ 蓋受枠体 １０’ 補助台枠 １１，１１’ 頭部係合部 １２ ストッパー １３，１４，１６ 座金 １７ 嵩上げ調整用スペーサー １８ 嵩上げ微調整用スペーサー １９ 受座片 DESCRIPTION OF SYMBOLS 1 Outer cylinder 2 Flange 3 Receiving hole 4 Stupid hole 5 Mounting part 6 Side hole storage part 7,15 Nut 8 Jack bolt 9 Upper rim 10 Cover receiving frame 10 'Auxiliary underframe 11,11' Head engaging part 12 Stopper 13,14,16 Washer 17 Spacer for height adjustment 18 Spacer for fine adjustment of height 19 Receiving piece

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 内側下部に受座を設けた外筒体内に、外
径を前記外筒体上部口縁の内径より若干小さい外径とし
た蓋受枠体を内装し、該蓋受枠体を前記受座間に設けた
ジャッキ用ボルトで昇降するように構成したマンホール
蓋受枠において、蓋受枠体と外筒体の受座間に前記ジャ
ッキ用ボルト挿入孔を有する突部を設けた補助台枠を設
け、且つこの補助台枠と蓋受枠体を係合させるずれ止め
手段を設けたことを特徴とするマンホール蓋受枠。A lid receiving frame having an outer diameter slightly smaller than an inner diameter of an upper edge of the outer cylindrical body is provided inside an outer cylindrical body provided with a seat at an inner lower portion, and the lid receiving frame is provided with the lid receiving frame. In a manhole cover receiving frame configured to be lifted and lowered by jack bolts provided between the seats, an auxiliary underframe provided with a protrusion having the jack bolt insertion hole is provided between the seats of the cover receiving frame and the outer cylindrical body, And a manhole cover receiving frame provided with a stopper for engaging the auxiliary frame with the cover receiving frame.