JPS6241101Y2 - - Google Patents

Description

【考案の詳細な説明】 この考案は組立式落差用マンホールに関する。
その目的とするところは、マンホール内に流入す
る排水等の流水を順次下段ブロツクに回流誘導し
て大きな流水落差が生じないようにして、マンホ
ールを縦長の長い大型において組立て据付けがで
きるようにすることにある。[Detailed description of the invention] This invention relates to a prefabricated head manhole.
The purpose of this is to guide running water such as wastewater flowing into the manhole into the lower block in order to prevent a large difference in water flow from occurring, and to allow the manhole to be assembled and installed in a large, vertically long structure. It is in.

従来この種のマンホールは浅底小型のものを短
かな間隔を置いて数多く設置していたので、設置
に当つて工期及び費用がかゝり、また保守点検も
容易でないという問題があつた。 Conventionally, manholes of this type had shallow bottoms and were installed in large numbers at short intervals, which posed problems in that installation required time and cost, and maintenance and inspection were not easy.

本考案はこれを改善するもので、以下実施例図
面について詳細説明すると、コンクリートを用い
て四角筒体形状のマンホール組立用のブロツク６
を形成する。該ブロツク６は一辺１の内側に平行
して内壁２と底板３を有す流入水の誘導溝４を設
け、該誘導溝４の長手側の一端の底板３上に流入
水の落下孔５を穿設するブロツク６ａと、流入水
の落下孔５を長手側の他端底板上に穿設するブロ
ツク６ｂの２種又は両端の底板３上に落下孔５の
打抜き形成溝を設けた一種のブロツクにて形成さ
れる。７は各ブロツクの嵌込み組立用に設ける上
部凹面、８は同、下部凸面である。 The present invention is intended to improve this problem, and will be explained in detail below with reference to the drawings.
form. The block 6 is provided with a guide groove 4 for inflow water having an inner wall 2 and a bottom plate 3 parallel to the inside of one side 1, and a drop hole 5 for the inflow water on the bottom plate 3 at one longitudinal end of the guide groove 4. There are two types: a block 6a for drilling, and a block 6b for drilling the inflow water drop hole 5 on the bottom plate at the other end on the longitudinal side, or a type of block in which a groove for forming the drop hole 5 is punched on the bottom plate 3 at both ends. It is formed in 7 is an upper concave surface provided for fitting and assembling each block, and 8 is a lower convex surface.

前記二つのブロツク６ａ，６ｂ又は落下孔を打
抜いたブロツクを誘導溝４が同列下に重なり且つ
落下孔５が交互するように一辺１を揃えて据付け
した水溜めブロツク９上に順次嵌合積重ね、或は
落下孔５を交互位置にして誘導溝４が平面視Ｌ字
形の往復路を形成するように、さらには一部がＬ
字形、一部がＩ字形の流水路を形成するように嵌
合積み重ねて、大型で縦長の長いマンホールを組
立てるのである。 The two blocks 6a and 6b or blocks with drop holes punched out are successively fitted and stacked on the water sump block 9, which is installed with side 1 aligned so that the guide grooves 4 overlap in the same row and below and the drop holes 5 alternate. Alternatively, the guide grooves 4 may be arranged so that the guide grooves 4 form an L-shaped reciprocating path in plan view, with the drop holes 5 alternately positioned, or even partially L-shaped.
A large, vertically long manhole is assembled by fitting and stacking them so that they form a flow channel that is partially I-shaped.

１０は最上位から２段目のブロツク６の一辺１
に穿孔接続する流入管、１１は水溜めブロツク９
の任意の側壁を穿孔して接続する流出管、１２は
コンクリート製の上板、１３はマンホール蓋、１
４は昇降用ステツプである。流入管１０よりマン
ホール内に流入する流水は誘導溝４内を流れて落
下孔５を経て３段目の誘導溝４内に入り、誘導溝
４の他端の落下孔５から４段目の誘導溝４内にと
順次下段ブロツクの誘導溝に誘導されて水溜めブ
ロツク９内に流入することゝなる。従つて縦長の
大型にマンホールが組立てられるにかかわらず水
溜ブロツク内の溜水との間で落差に伴う衝突が全
く生じないものとなり、この結果溜水との間の衝
突によつて生ずる悪臭や騒音の発生を防止し得
て、且つ水溜めブロツク９及び各ブロツク６の内
面の早い疲労や損傷を防止することができる等の
効果が生じ、第１図に示すように傾斜地において
間隔を置いて設置して工期、費用を軽減し、保守
点検を容易にする効果がある。 10 is side 1 of block 6 in the second row from the top
11 is a water sump block 9.
12 is a concrete top plate; 13 is a manhole cover; 1
4 is a step for raising and lowering. Water flowing into the manhole from the inflow pipe 10 flows through the guide groove 4, passes through the drop hole 5, enters the third stage guide groove 4, and flows from the drop hole 5 at the other end of the guide groove 4 to the fourth stage guide groove. The water is guided into the groove 4 and then into the guide groove of the lower block and flows into the water reservoir block 9. Therefore, even if the manhole is assembled into a large vertically long manhole, there will be no collision due to the head difference between the manhole and the accumulated water in the water storage block, and as a result, there will be no foul odor or noise caused by collision with the accumulated water. This has the effect of preventing the occurrence of water sump block 9 and the inner surface of each block 6 from early fatigue and damage. This has the effect of reducing construction time and costs, and facilitating maintenance and inspection.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案マンホールの設置例を示す説明
図なお、仮線は従来の設置例を示している。第２
図は組立用ブロツクを示す斜視図、第３図は誘導
溝を同列下（Ｉ字形）にした組立て例を示す縦断
面図、第４図は誘導溝をＬ字形に配列した組立て
例を示す平面図、第５図は同、縦断面図、１は一
辺、２は内壁、３は底板、４は誘導溝、５は落下
孔、６は組立て用のブロツク、７は上部凹面、８
は下部凹面、９は水溜めブロツク、１０は流入
管、１１は流出管、１２はコンクリート製の上
板、１３はマンホール蓋、１４は昇降用ステツプ
である。 FIG. 1 is an explanatory diagram showing an installation example of the manhole of the present invention. Note that the phantom lines indicate a conventional installation example. Second
The figure is a perspective view showing an assembly block, Figure 3 is a vertical sectional view showing an assembly example in which the guide grooves are arranged in the same row and below (I-shape), and Figure 4 is a plan view showing an assembly example in which the guide grooves are arranged in an L-shape. Figure 5 is the same longitudinal sectional view, 1 is one side, 2 is the inner wall, 3 is the bottom plate, 4 is the guide groove, 5 is the drop hole, 6 is the assembly block, 7 is the upper concave surface, 8
9 is a concave lower surface, 9 is a water sump block, 10 is an inflow pipe, 11 is an outflow pipe, 12 is a concrete upper plate, 13 is a manhole cover, and 14 is a step for lifting/lowering.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 一辺１に沿つて内壁２と底板３を有す流入水の
誘導溝４を設け、該溝４の長手側の一端の底板３
上に流水の落下孔５を穿孔する四角筒形のコンク
リート製ブロツク６ａと、落下孔５を誘導溝４の
他端に穿孔するコンクリート製の同形ブロツク６
ｂとを形成し、前記２ブロツク６ａ，６ｂを誘導
溝４を同列下に位置するように一辺１を揃えて積
み重ね組立てし、或は誘導溝４の一部又は全部が
平面視Ｌ字形に配置されるように積み重ね組立
てゝ、流入水を上段ブロツクより順次下段ブロツ
ク内に誘導するようにしたことを特徴とする組立
式落差用マンホール。 An inflow water guiding groove 4 having an inner wall 2 and a bottom plate 3 is provided along one side 1, and a bottom plate 3 at one longitudinal end of the groove 4 is provided.
A rectangular cylindrical concrete block 6a with a running water drop hole 5 drilled in the upper part, and a concrete block 6 of the same shape with a drop hole 5 drilled in the other end of the guide groove 4.
b, and the two blocks 6a and 6b are stacked and assembled with side 1 aligned so that the guide grooves 4 are located in the same row and below, or a part or all of the guide grooves 4 are arranged in an L-shape in plan view. A prefabricated head manhole characterized in that the manholes are stacked and assembled so that inflow water is guided from the upper block to the lower block sequentially.