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JP4036379B2 - Protective cover for water gate valve - Google Patents

Protective cover for water gate valve Download PDF

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JP4036379B2
JP4036379B2 JP2004335238A JP2004335238A JP4036379B2 JP 4036379 B2 JP4036379 B2 JP 4036379B2 JP 2004335238 A JP2004335238 A JP 2004335238A JP 2004335238 A JP2004335238 A JP 2004335238A JP 4036379 B2 JP4036379 B2 JP 4036379B2
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gate valve
water gate
synthetic resin
protective cover
peripheral surface
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JP2005290969A (en
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宗夫 金谷
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有限会社M&Kサービス
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Description

本発明は、道路下に埋設される水道管の水道仕切弁の保護カバーの改良に関する。   The present invention relates to an improvement in a protective cover for a water gate valve of a water pipe buried under a road.

本発明者は、特開2002−138523号公報(特許文献1)に示すように、コンクリートボックスを浅埋形のものに変えてコンクリートボックス底版と浅埋された水道管との距離を大きくとるようにして道路上の車両等の荷重の影響を少なくし、又、水道管のジョイント部分等からの水洩れの発生を防止すると共に、コンクリートボックスに挿入された合成樹脂製の保護カバーを設けて、水道仕切弁のフランジより上方を雨水や土砂から保護できると共に、地震等によるコンクリートボックスのズレが発生しないことに成功したが、水道仕切弁本体は、水道本管の口径50ミリメートル、75ミリメートル、100ミリメートル、150ミリメートル、200ミリメートル、250ミリメートル等に対応して形状が大きくなり、また、製品メーカーにより形状の相違があり、一定の大きさの合成樹脂製の保護カバーでは対応できない問題が生じた。そこで発明者は、多用される一定範囲の水道仕切弁に適用できる一定大きさの合成樹脂製保護カバーを開発することに成功し、また、夜間点検を容易にできる保護カバーの開発にも成功した。この改良発明に関し、円筒部分と下部が末広がり部分の保護カバーで水道仕切弁を嵌入していることを特徴とする水道仕切弁の保護カバーについての特許出願を行っている(特願2004−63760)。   As shown in Japanese Patent Application Laid-Open No. 2002-138523 (Patent Document 1), the present inventor changes the concrete box to a shallow buried type so as to increase the distance between the concrete box bottom plate and the shallowly buried water pipe. In order to reduce the influence of the load of vehicles on the road, and prevent the occurrence of water leakage from the joints of the water pipe, etc., and provide a protective cover made of synthetic resin inserted in the concrete box, Although the upper part of the flange of the water gate valve can be protected from rain water and earth and sand, and the concrete box is not displaced due to an earthquake or the like, the main body of the water gate valve has a diameter of 50 mm, 75 mm, 100 mm. The shape increases corresponding to millimeters, 150 millimeters, 200 millimeters, 250 millimeters, etc. There is a difference in shape by the manufacturer, the problem can not support occurs in a protective cover made of a certain size of the synthetic resin. Therefore, the inventor succeeded in developing a protective cover made of a synthetic resin of a certain size that can be applied to a wide range of water gate valves, and succeeded in developing a protective cover that can be easily inspected at night. . Regarding this improved invention, a patent application has been filed for a protective cover for a water gate valve, characterized in that the water gate valve is fitted with a protective cover having a cylindrical portion and a lower portion extending from the end (Japanese Patent Application No. 2004-63760). .

また、本発明者は、これまでに開発した水道仕切弁の保護カバーに更なる改良を施し、水道仕切弁の保護を強化するために道路面からの土砂流入や地下水流入を完全に防止することを目的とし円筒内を密閉状態に保持せしめることが可能となる保護カバーの開発にも成功した。   In addition, the present inventor shall further improve the protective cover of the water gate valve that has been developed so far and completely prevent inflow of earth and sand and groundwater from the road surface in order to strengthen the protection of the water gate valve. For this purpose, we have also succeeded in developing a protective cover that can keep the inside of the cylinder sealed.

特開2002−138523号公報JP 2002-138523 A

本発明が解決しようとする具体的な課題は、水道管の口径及びメーカー毎に異なる水道仕切弁の形状に対応できる水道仕切弁の保護カバーを提供すること、また地下水等の流入を防止することができる水道仕切弁の保護カバーを提供すること、更には夜間の点検が容易な水道仕切弁の保護カバーを提供することにある。   The specific problem to be solved by the present invention is to provide a protective cover for the water gate valve that can cope with the diameter of the water pipe and the shape of the water gate valve that is different for each manufacturer, and to prevent the inflow of groundwater, etc. It is another object of the present invention to provide a protective cover for a water gate valve that can be used, and to provide a protective cover for a water gate valve that can be easily inspected at night.

本発明は、水道仕切弁及び水道管が浅く埋設されても、道路面の荷重を受け難くし地震等によるコンクリートボックスのズレが生じないようにした水道仕切弁の保護カバーを提供することにおいて、一群の発明が連関している技術的関係を有している。   The present invention provides a protective cover for a water gate valve that is less likely to receive a load on the road surface and does not cause a displacement of a concrete box due to an earthquake or the like even if the water gate valve and the water pipe are buried shallowly. It has a technical relationship with which a group of inventions are related.

本発明にかかる水道仕切弁の保護カバーは、上記課題を達成するため、請求項5に記載の発明は、コンクリートボックス内に挿入した合成樹脂製円筒の外周面上部に、前記コンクリートボックスの内周面に嵌着する第1ゴムハットを取りつけると共に、前記合成樹脂製円筒の内周面下部に水道仕切弁のフランジカバーに嵌着する第2ゴムハットを固着した水道仕切弁の保護カバーにおいて、前記合成樹脂製円筒の第2ゴムハットより下方の筒部分を末広がり状に形成して対向面が隧道状に切り抜かれた穴を設け、水道仕切弁を嵌入できるようにしたものである。
前記下方の筒部分の対向面を隧道状に切り抜くことにより、広範囲の全メーカーの水道仕切弁を嵌入できることが可能になり、切り抜かれた切縁をゴムカバーで保護することが好ましい。
In order to achieve the above object, the protective cover of the water gate valve according to the present invention is characterized in that the invention according to claim 5 is arranged on the inner peripheral surface of the concrete box on the outer peripheral surface of a synthetic resin cylinder inserted into the concrete box. In the protective cover of the water gate valve, the first rubber hat fitted to the surface is attached, and the second rubber hat fitted to the flange cover of the water gate valve is fixed to the lower part of the inner peripheral surface of the synthetic resin cylinder. A cylindrical portion below the second rubber hat of the cylindrical body is formed in a divergent shape, and a hole is formed in which the opposite surface is cut out in a saddle shape so that a water gate valve can be inserted.
By cutting out the opposing surface of the lower cylinder part in a strait-like shape, it becomes possible to insert a wide range of water gate valves from all manufacturers, and it is preferable to protect the cut out edge with a rubber cover.

本発明にかかる水道仕切弁の保護カバーは、上記課題を達成するため、請求項1に記載の発明は、コンクリートボックス内に挿入した合成樹脂製円筒の外周面上部に、前記コンクリートボックスの内周面に嵌着するゴムカバーを装着自在に取りつけ、前記合成樹脂製円筒の上端部に開閉自在の蓋を備え、前記合成樹脂製円筒の内周面下部に水道仕切弁に密着させて当該円筒内を密閉状態に保持せしめる軟質性部材を介在させ、前記軟質性部材は、下方に向かって径が順次減少する形状に形成され水道仕切弁のフランジ部又はその周辺部に密着させて固定する第1固定部と、前記第1固定部の上方に配置され蛇腹状に形成された高さ調整部と、前記高さ調整部の上方に配置され前記合成樹脂製円筒の本体部と下部との接合部に嵌着させて固定する第2固定部とから構成されている。
また、請求項2に記載の発明は、請求項1に記載の発明において、前記軟質性部材は、ゴム又は軟質塩化ビニル樹脂等の軟質性を有する素材を加工し水密性を保持するように成形されている。
また、請求項3に記載の発明は、請求項1又は請求項2に記載の発明において、前記合成樹脂製円筒の上部の径をコンクリートボックスの開口部の径よりも小さく形成し、前記合成樹脂製円筒の上端部に備えた開閉自在の蓋を外部から取り出し易くしたものである。
また、請求項4に記載の発明は、請求項1乃至請求項3に記載の発明において、前記合成樹脂製円筒の下部の筒部分を末広がり状に形成して対向面が隧道状に切り抜かれた穴を設け、水道仕切弁を嵌入できるようにしたものである。
In order to achieve the above object, a protective cover for a water gate valve according to the present invention is characterized in that the invention according to claim 1 is arranged such that an inner periphery of the concrete box is formed on an outer peripheral surface of a synthetic resin cylinder inserted in a concrete box. A rubber cover to be fitted to the surface is attached so as to be freely mounted, and an openable / closable lid is provided at the upper end portion of the synthetic resin cylinder, and the lower part of the inner peripheral surface of the synthetic resin cylinder is brought into close contact with the water gate valve and the inside of the cylinder A soft member that keeps the container in a hermetically sealed state, and the soft member is formed in a shape in which the diameter gradually decreases downward, and is fixed in close contact with the flange portion of the water gate valve or its peripheral portion. A fixing portion, a height adjusting portion arranged above the first fixing portion and formed in a bellows shape, and a joint portion between the main body portion and the lower portion of the synthetic resin cylinder arranged above the height adjusting portion Insert and fix And a second fixing unit.
The invention according to claim 2 is the invention according to claim 1, wherein the flexible member is formed so as to maintain a watertightness by processing a material having flexibility such as rubber or a soft vinyl chloride resin. Has been.
According to a third aspect of the present invention, in the first or second aspect of the present invention, the diameter of the upper portion of the synthetic resin cylinder is smaller than the diameter of the opening of the concrete box, and the synthetic resin The openable and closable lid provided at the upper end of the cylinder is made easy to take out from the outside.
According to a fourth aspect of the present invention, in the first to third aspects of the present invention, the lower cylindrical portion of the synthetic resin cylinder is formed in a divergent shape, and the opposing surface is cut out in a saddle shape. A hole is provided so that a water gate valve can be inserted .

本発明にかかる水道仕切弁の保護カバーは、上記課題を達成するため、請求項6に記載の発明は、請求項1乃至請求項5に記載の発明において、前記合成樹脂製円筒の内周面を白色乃至光線反射色又は蛍光色として夜間点検を容易にしたものである。 In order to achieve the above object, a protective cover for a water gate valve according to the present invention is characterized in that the invention according to claim 6 is the inner peripheral surface of the synthetic resin cylinder according to any one of claims 1 to 5. Is a white or light-reflecting color or fluorescent color to facilitate nighttime inspection.

本発明によれば、水道管及び水道仕切弁が浅埋形のコンクリートボックスと共に浅く埋設されても、コンクリートボックスに対する保護カバーの挿入によって、コンクリートボックス底版と水道管との距離が大きくとれることから、道路面の荷重は、保護カバーによって水道仕切弁や水道管に作用することなく、さらに、雨水の流出や土砂の回収も容易になるなど、多くの利点をもたらす上に、本発明の保護カバーの筒長さを調整することにより、埋設深さを自由に変えることが可能になり、コンクリートボックス自体も1、2段程度の使用で対応でき、狭い個所でも設置することが可能になった。   According to the present invention, even if the water pipe and the water gate valve are shallowly embedded together with the shallow concrete box, the distance between the concrete box bottom plate and the water pipe can be increased by inserting the protective cover to the concrete box. The load on the road surface does not act on the water gate valve or water pipe by the protective cover, and also provides many advantages such as easy outflow of rainwater and collection of earth and sand, and the protective cover of the present invention. By adjusting the tube length, the embedment depth can be changed freely, and the concrete box itself can be used with only one or two steps, and can be installed even in narrow places.

また、請求項5に記載の発明によれば、一定大きさの保護カバーの下部を末広がり状に形成することにより広範囲の水道管口径範囲に使用できることになり、従来の様な、例えばコンクリートボックス25型、32型等の使い分けが必要でなくなり、例えば25型タイプのようなコンクリート内面直径の小さいものですべて可能となり、経済的な施工が可能となった。その理由は、水道仕切弁が大きくなるにつれ、コンクリートボックス内面直径の大きさもそれに見合った大きさのボックスを使用していたが、保護カバーの下部が末広がり状であれば、上部は例えば直径200ミリメートルであっても、末広がりの下部が内面直径250ミリメートル以上に拡大できるからである。
Further, according to the invention described in claim 5 , by forming the lower part of the protective cover of a certain size in a divergent shape, it can be used in a wide range of water pipe diameters, for example, a concrete box 25 as in the prior art. It is no longer necessary to use different types such as molds and 32 types, and for example, it is possible to use anything with a small concrete inner diameter such as the 25 type type, and economical construction is possible. The reason for this was that as the water gate valve became larger, a concrete box with a diameter corresponding to the inner diameter of the concrete box was used. If the lower part of the protective cover was widened, the upper part had a diameter of 200 mm, for example. Even so, the lower part of the end spread can be expanded to an inner diameter of 250 mm or more.

また、請求項1乃至請求項4に記載の発明によれば、合成樹脂製円筒の上端部に開閉自在の蓋を備え、合成樹脂製円筒の内周面下部に水道仕切弁に密着させて当該円筒内を密閉状態に保持せしめる軟質性部材を介在させることにより、水道仕切弁のフランジ部分の大きさの大小に関係なく対応でき且つ水道仕切弁全体の保護を強化するために道路面からの土砂流入を防止し且つ地下水流入を完全に防止することができるため、従来の様に、例えば災害時において水道仕切弁が土砂や地下水などで埋没してしまい作業が困難になるなどの問題を解消することが可能となり、これまで考えられていなかった付加価値の高い水道仕切弁の保護カバーを提供することができる。また、本発明者が開発した一連の水道仕切弁の保護カバーと同様に施工の方法も簡単であることから経済的な施工が可能となった。 According to the invention described in claims 1 to 4 , the upper end of the synthetic resin cylinder is provided with an openable / closable lid, and the lower part of the inner peripheral surface of the synthetic resin cylinder is brought into close contact with the water gate valve. By interposing a flexible member that keeps the inside of the cylinder sealed, soil and sand from the road surface can be used regardless of the size of the flange part of the water gate valve and to protect the entire water gate valve. Inflow can be prevented and groundwater inflow can be completely prevented, which eliminates problems such as water drainage valves being buried with earth and sand or groundwater during a disaster, making it difficult to work. It is possible to provide a protective cover for a high-value added water gate valve that has not been considered so far. Moreover, since the construction method is as simple as the protective cover for a series of water gate valves developed by the present inventors, economical construction has become possible.

また、請求項6に記載の発明によれば、合成樹脂製円筒の内周面を白色乃至光線反射色又は蛍光色としたことにより、夜間点検が容易になり作業性を高めることが可能となった。 Further, according to the invention described in claim 6 , by making the inner peripheral surface of the synthetic resin cylinder white, light-reflecting color or fluorescent color, nighttime inspection becomes easy and workability can be improved. It was.

本発明の具体的な課題(水道管の口径及びメーカー毎に異なる水道仕切弁の形状に対応できる水道仕切弁の保護カバーを提供すること)を達成するための水道仕切弁の保護カバーは、円筒部分と下部が末広がり部分の保護カバーで水道仕切弁を嵌入していることを主要な特徴としている。以下、この水道仕切弁の保護カバーに関し、実施例1及び2において説明する。
また、本発明の具体的な課題(地下水等の流入を防止することができる水道仕切弁の保護カバーを提供すること)を達成するための水道仕切弁の保護カバーは、円筒内を密閉状態に保持せしめる蓋、軟質性部材を備えたことを主要な特徴としている。以下、この水道仕切弁の保護カバーに関し、実施例3において説明する。
なお、実施例1乃至3において説明する水道仕切弁の保護カバーは、リサイクル問題や経済性を考慮すると、合成樹脂の代わりに鋳鉄などの素材を採用することができる。また、コンクリートボックスについては、所定の内周径を有しているものであれば取り付けることができるため、レジンコンクリートなどで成形されたものであっても良い。
A protective cover of a water gate valve for achieving a specific problem of the present invention (providing a protective cover of a water gate valve that can cope with the diameter of the water pipe and the shape of the water gate valve that differs for each manufacturer) The main feature is that the water gate valve is fitted with a protective cover with the part and the lower part spread out. Hereinafter, the protective cover of this water gate valve will be described in Examples 1 and 2.
Moreover, the protection cover of the water gate valve for achieving the specific subject (providing the protective cover of the water gate valve which can prevent inflow of groundwater etc.) of this invention is the inside of a cylinder being sealed. The main feature is that it is provided with a lid to be held and a soft member. Hereinafter, the protective cover for the water gate valve will be described in Example 3.
In addition, the protection cover of the water gate valve described in Examples 1 to 3 can employ a material such as cast iron instead of synthetic resin in consideration of recycling problems and economy. In addition, the concrete box can be attached as long as it has a predetermined inner peripheral diameter, and may be formed of resin concrete or the like.

本発明の実施例1は、図1乃至図4及び図7を参照して説明する。
本実施例の水道仕切弁の保護カバーは、合成樹脂製末広がり状の円筒10と第1ゴムハット20と第2ゴムハット30とを備えている。
合成樹脂製末広がり状の円筒10は、円周面を白色塗装又は蛍光色塗装した硬質塩化ビニル樹脂等の公知の合成樹脂製の円筒部分100と末広がり部分101とからなり、後記第2ゴムハット30の取付位置から下方の末広がり部分101は、水道仕切弁50の上部及びフランジ511を嵌入できる大きさが必要で、末広がり部分101は図1、図3及び図4に示すように異形ソケットでもよい。
末広がり部分101の切り抜かれた穴102、102は、切縁1021、1021をゴムカバー1022、1022で外嵌することが好ましい。
また、末広がり部分101は、図3及び図4に示すように、水道仕切弁50の設置又は取替のためのフック512を設けている場合は、切り欠き穴103、103を設けることが好ましい。
第1ゴムハット20は、図7に示すように、合成樹脂製円筒10の外周面11上部に嵌合して固着するように取りつけられるフランジ付短円筒部分21と、その下端で連設する可撓性の座金状のゴムハット縁22であって、コンクリートボックス内周面41に曲げ下げられてハット縁先221を嵌着できるようにしたものとからなる。適当数設けられる水はけ23は、ハット縁22と一体成形されているが、それよりも僅かに中心方向に短く、かつ、浅溝を形成して排水できるようにしている。また、フランジ付短円筒部分21の代わりに、特開2002−138523号の図5に示すコ字状部分21Bを円筒10の上端に嵌合して固着するように取りつけてもよい。
さらに、第1ゴムハットは、特開2002−138523号の図6に示すように、前記短円筒部分21又はコ字状部分21Bと可撓性座金状のゴムハット縁22とハット縁先211に切欠きを設けた水はけ23Bとからなるもの20Bでもよい。
第2ゴムハット30は、特開2002−138523号の図1、図7及び図8に示すように、合成樹脂製円筒10の内周面12下部に嵌合して固着する短円筒部分31と、その下端で連設する水抜き穴(図示しない)付きの円板状のゴムハット縁32とからなっている。ゴムハット縁32には開口部33が設けられ、開口部33は、水道仕切弁50のフランジカバー51の外形に嵌合するもので、ゴムハット縁32をフランジカバー51に沿って開口部33から曲げ上げることにより密着される。
従って、水道管60及び水道仕切弁50を埋設の際に、合成樹脂製末広がり円筒10を図3及び図4に示すように、水道管60に跨がるように挿入してコンクリートボックス40を設置すれば、円筒10の外周面11の上部に取りつけられた第1ゴムハット20は、コンクリートボックス40の内周面41に嵌着し、また円筒10の内周面12の下部に取りつけられた第2ゴムハット30は、水道仕切弁50のフランジカバー51に嵌着できることになる。
この場合、コンクリートボックス底版42と水道管60との間の距離は、第1ゴムハット20がコンクリートボックス40内周面を自由に移動して嵌着できることから、微少な調整が容易にできることになる。
また、コンクリートボックス40内に軽量の合成樹脂製末広がり円筒10を挿入したことから、道路面に作用する荷重は円筒10に作用せず、このため水道仕切弁50や水道管60には何らの負担がかからない。
道路から流入する水は、第1ゴムハットの水はけ23又は23Bから土砂70中に流出し、また、第2ゴムハット30の水抜き穴から土砂70中に流出する。また、道路から流入した土砂は、その殆どが第1ゴムハット20及び第2ゴムハット30上に集積するので、定期的に回収すればよい。
さらに、本発明実施例では、末広がり部分101の円径を250ミリメートルとすれば、水道管口径200ミリメートル以下の範囲はすべて末広がり円筒10で使用できることになる。
A first embodiment of the present invention will be described with reference to FIGS. 1 to 4 and FIG.
The protective cover of the water gate valve of the present embodiment includes a synthetic resin end-spreading cylinder 10, a first rubber hat 20, and a second rubber hat 30.
The synthetic resin end-spreading cylinder 10 includes a cylindrical portion 100 made of a known synthetic resin such as a hard vinyl chloride resin whose peripheral surface is white-coated or fluorescent-coated, and a end-spreading portion 101. The second rubber hat 30 is described later. The divergent portion 101 below the mounting position needs to be large enough to fit the upper portion of the water gate valve 50 and the flange 511, and the divergent portion 101 may be a deformed socket as shown in FIGS.
It is preferable that the holes 102 and 102 cut out of the divergent portion 101 are externally fitted to the cut edges 1021 and 1021 with rubber covers 1022 and 1022.
Further, as shown in FIGS. 3 and 4, the divergent portion 101 is preferably provided with notches 103 and 103 when a hook 512 for installing or replacing the water gate valve 50 is provided.
As shown in FIG. 7, the first rubber hat 20 has a flanged short cylindrical portion 21 attached so as to be fitted and fixed to the upper portion of the outer peripheral surface 11 of the synthetic resin cylinder 10, and a flexible connecting at the lower end thereof. This is a rubber washer edge 22 in the form of a washer that is bent down to the inner peripheral surface 41 of the concrete box so that the hat edge 221 can be fitted. An appropriate number of drains 23 are integrally formed with the hat edge 22, but are slightly shorter in the central direction than that, and a shallow groove is formed to allow drainage. Further, instead of the flanged short cylindrical portion 21, a U-shaped portion 21 </ b> B shown in FIG. 5 of JP-A-2002-138523 may be fitted and fixed to the upper end of the cylinder 10.
Further, as shown in FIG. 6 of JP-A No. 2002-138523, the first rubber hat has notches formed in the short cylindrical portion 21 or the U-shaped portion 21B, the flexible washer-like rubber hat edge 22 and the hat edge 211. 20B which consists of the provided drainage 23B may be sufficient.
As shown in FIGS. 1, 7 and 8 of JP-A No. 2002-138523, the second rubber hat 30 includes a short cylindrical portion 31 which is fitted and fixed to the lower portion of the inner peripheral surface 12 of the synthetic resin cylinder 10; It consists of a disc-shaped rubber hat edge 32 with a drain hole (not shown) provided continuously at its lower end. The rubber hat edge 32 is provided with an opening 33, and the opening 33 is fitted to the outer shape of the flange cover 51 of the water gate valve 50, and the rubber hat edge 32 is bent up from the opening 33 along the flange cover 51. It adheres by.
Therefore, when embedding the water pipe 60 and the water gate valve 50, as shown in FIGS. 3 and 4, the synthetic resin end spread cylinder 10 is inserted so as to straddle the water pipe 60 and the concrete box 40 is installed. In this case, the first rubber hat 20 attached to the upper part of the outer peripheral surface 11 of the cylinder 10 is fitted to the inner peripheral surface 41 of the concrete box 40 and is attached to the lower part of the inner peripheral surface 12 of the cylinder 10. The rubber hat 30 can be fitted to the flange cover 51 of the water gate valve 50.
In this case, the distance between the concrete box bottom plate 42 and the water pipe 60 can be easily finely adjusted because the first rubber hat 20 can freely move and fit on the inner peripheral surface of the concrete box 40.
Moreover, since the lightweight synthetic resin end-spreading cylinder 10 is inserted into the concrete box 40, the load acting on the road surface does not act on the cylinder 10, so that no burden is placed on the water gate valve 50 or the water pipe 60. Does not take.
The water flowing in from the road flows out into the earth and sand 70 from the drain 23 or 23B of the first rubber hat, and flows out into the earth and sand 70 from the drain hole of the second rubber hat 30. In addition, most of the earth and sand flowing in from the road is collected on the first rubber hat 20 and the second rubber hat 30 and may be collected periodically.
Further, in the embodiment of the present invention, if the diameter of the divergent portion 101 is 250 mm, the range of the water pipe diameter of 200 mm or less can be used in the divergent cylinder 10.

本発明の実施例2は、図5及び図6を参照して説明する。
本実施例の水道仕切弁の保護カバーは、合成樹脂製末広がり状の円筒10Bと第1ゴムハット20と第2ゴムハット30とを備えている。
合成樹脂製末広がり状の円筒10Bは、円周面を白色塗装又は蛍光色塗装した硬質塩化ビニル樹脂等の公知の合成樹脂製の円筒部分100Bと末広がり部分101Bとからなり、後記第2ゴムハット30の取付位置から下方の末広がり部分101Bは、仕切弁カバー51B用のフランジ511Bを嵌入できる大きさが必要で、末広がり部分101Bは、円筒10Bの下方に一体的に形成したものである。
第1ゴムハット20及び第2ゴムハット30は、実施例1と同様であるので詳細説明は省略する。
従って、水道管60及び水道仕切弁50Bを埋設の際に、合成樹脂製末広がり円筒10Bを図5及び図6に示すように、水道管60に跨がるように挿入してコンクリートボックス40を設置すれば、円筒10Bの外周面11Bの上部に取りつけられた第1ゴムハット20は、コンクリートボックス40の内周面41に嵌着し、また円筒10Bの内周面12Bの下部に取りつけられた第2ゴムハット30は、水道仕切弁50Bのフランジカバー51Bに嵌着できることになる。
A second embodiment of the present invention will be described with reference to FIGS.
The protective cover of the water gate valve according to the present embodiment includes a synthetic resin end-spreading cylinder 10 </ b> B, a first rubber hat 20, and a second rubber hat 30.
The synthetic resin end-spreading cylinder 10B is composed of a cylindrical portion 100B made of a known synthetic resin such as hard vinyl chloride resin whose peripheral surface is painted in white or fluorescent color, and a end-spreading portion 101B. The divergent portion 101B below the attachment position needs to be large enough to fit the flange 511B for the gate valve cover 51B, and the divergent portion 101B is integrally formed below the cylinder 10B.
Since the 1st rubber hat 20 and the 2nd rubber hat 30 are the same as that of Example 1, detailed explanation is omitted.
Therefore, when embedding the water pipe 60 and the water gate valve 50B, the concrete resin end spread cylinder 10B is inserted so as to straddle the water pipe 60 as shown in FIGS. 5 and 6, and the concrete box 40 is installed. In this case, the first rubber hat 20 attached to the upper portion of the outer peripheral surface 11B of the cylinder 10B is fitted to the inner peripheral surface 41 of the concrete box 40, and is attached to the lower portion of the inner peripheral surface 12B of the cylinder 10B. The rubber hat 30 can be fitted to the flange cover 51B of the water gate valve 50B.

本発明の実施例3は、図8乃至図11を参照して説明する。
本実施例の水道仕切弁の保護カバーは、合成樹脂製の円筒本体部210に円筒下部220と円筒上部230を差し込み連結された保護カバー200と、円筒本体部210の外周面に装着自在に取りつけられ且つコンクリートボックスの内周面41に嵌着するゴムカバー300と、円筒上部230の上端部に開閉自在に取りつけられた蓋400と、保護カバー200の内周面下部に水道仕切弁50に密着させて円筒内を密閉状態に保持せしめる軟質性部材500とを備えている。
保護カバー200の円筒下部220は、実施例1及び2で説明した保護カバーと同様に末広がり状に形成することができ、保護カバー200の全体構成は、図8に示すように合成樹脂製の円筒本体部210に円筒下部220と円筒上部230を差し込むタイプとは別に一体形成されているものであっても良い。また、保護カバー200の内周面は、夜間点検を容易にするため白色塗装又は蛍光色塗装がなされていることが好ましい。
ゴムカバー300は、図8に示すように、合成樹脂製の円筒本体部210の外周面に嵌合して装着自在に取りつけられる短円筒部分310と、その上端で連設する可撓性の縁部320とからなり、コンクリートボックス内周面41に曲げ下げられて縁部320を嵌着できるようにしている。ゴムカバー300には、道路から流入する雨水等の排水を行うための浅溝状の水はけ又は切り欠き(図示省略、特開2002−138523号の図2及び図6参照)が縁部320に形成されている。なお、ゴムカバー300は、ゴム製品の代わりに、可撓性のある合成樹脂製品であっても良い。
蓋400は、合成樹脂製の円筒上部230の上端部に嵌合して開閉自在に取りつけられ、合成樹脂製円筒の円筒上部230の上端部の径をコンクリートボックスの開口部43の径よりも小さく形成することにより、開閉自在の蓋400を外部から取り出し易くすることができる。図8に示すように、例えば、円筒本体部210に直径200ミリメートルの部材を採用し、円筒上部230に直径150ミリメートルの部材を採用することにより、円筒上部230の上端部を縮小させる。本実施例では、円筒本体部210の外側に円筒上部230を取りつける施工例を示しているが、円筒本体部210の内側に収まるように加工した円筒上部230a(図示省略)を取りつけても良い。このように円筒本体部210の内側に蓋400を含めた円筒上部230aの全体が収まるように施工した場合には、蓋400の上に土砂が集積するので土砂の回収が容易になる。なお、合成樹脂製円筒の円筒上部230の上端部の径がコンクリートボックスの開口部43の径よりも大きい場合には、蓋自体の取り出しが困難になるという問題を有することになるが、蓋自体を可撓性のある軟質性素材(軟質プラスチック、軟質塩化ビニル樹脂、ゴム等)により形成することにより問題の解決を図ることができる。
保護カバー200の円筒内を密閉状態に保持せしめる軟質性部材500は、図8及び図9に示すように、水道仕切弁50のフランジ511に密着させて固定する第1固定部510と、第1固定部510の上方に配置され蛇腹状に形成された高さ調整部520と、高さ調整部520の上方に配置され合成樹脂製の円筒本体部210と円筒下部220との接合部に嵌着させて固定する第2固定部530とから構成されている。
軟質性部材500は、密閉用のいわゆるゴムカバーとしての役割を果たすものであれば良く、ゴム又は軟質塩化ビニル樹脂等の軟質性のある素材を加工して成形される。また、軟質性部材500の全体構成は、図8及び図9に示すように水道仕切弁50のフランジ511に密着させて固定するタイプに限定されず、水道仕切弁50を取り巻く形状で袋状に成形して水密性を保持できるものであれば良い。
軟質性部材500の第1固定部510は、水道管60の口径50ミリメートル、75ミリメートル、100ミリメートルに対応して水道仕切弁50のフランジ部分が大きくなることから、いずれの形状の水道仕切弁50にも対応できるようにするため、図9に示すように下方に向かって径が順次減少する形状に形成され、内周面には半円状又は三角形状の突起515が3箇所設けられている。この半円状又は三角形状の突起515を水道仕切弁50のフランジ511に食い込ますことにより固定される。ここで、突起515の形状については、三角形状のように鋭角である方が取りつけ易くなる。また、図10に示すようにステンレス製の固定バンド516を使用して取りつけを強固にしても良い。
軟質性部材500の高さ調整部520は、図9に示すように第1固定部510の上方に配置され蛇腹状に形成されている。これにより、施工する際に水道仕切弁50との間隔や位置関係にばらつきがある場合でも対応が可能になる。
軟質性部材500の第2固定部530は、図9に示すように高さ調整部520の上方に配置され、合成樹脂製の円筒本体部210と円筒下部220との接合部に嵌着させることにより固定され、それと同時に水密性が保持される。
第2固定部530の構成は、図9及び図10に示すように上端部を外側に屈曲させて形成したコ字状の挟持部531からなり、この挟持部531の内部には円筒下部220の上端部が差し込まれるようになっている。また、挟持部531の外側部の外周面には、円筒本体部210の下端部を差し込み易くし且つ水密性を高めるためのハット状又は半円状の突起532が複数個設けられている。また、図9に示すようにハット状又は半円状の突起532の間隙には、水分を吸収して膨張するいわゆる膨張ゴムリング533と称する部材を装着することができる。ただし、このような膨張ゴムリング533がなくても水密性の保持は可能であるが、膨張ゴムリング533を取りつけることにより完全な止水が可能となる。
上記は、円筒本体部210と円筒下部220との接合部について、円筒下部220の上端部の外側に円筒本体部210の下端部を差し込むタイプにおける軟質性部材500の具体的構成を説明したが、円筒下部220の上端部の内側に円筒本体部211の下端部を差し込むタイプにおける別の軟質性部材の具体的構成を、図11に基づいて説明する。
軟質性部材600は、図11に示すように、水道仕切弁50のフランジ511に密着させて固定する第1固定部610と、第1固定部610の上方に配置され蛇腹状に形成された高さ調整部620と、高さ調整部620の上方に配置され合成樹脂製の円筒本体部211と円筒下部220との接合部に嵌着させて固定する第2固定部630とから構成されている。ここで、第1固定部610と高さ調整部620は、上述した第1固定部510と高さ調整部520と同様であるので説明は省略する。
軟質性部材600の第2固定部630は、上記と同様に合成樹脂製の円筒本体部211と円筒下部220との接合部に嵌着させることにより固定され、それと同時に水密性が保持される。
第2固定部630の構成は、図11に示すように上端部を外側に屈曲させて形成したコ字状の挟持部631からなり、挟持部631の内部には円筒下部220の上端部が差し込まれるようになっている。挟持部631の内側部の内周面及び外周面にハット状又は半円状の突起632が複数個設けられている。、この挟持部631の内側部の内周面に設けられたハット状又は半円状の突起632に沿って円筒本体部211の下端部が差し込まれるようになっている。
以上のように、本実施例の水道仕切弁の保護カバーは、合成樹脂製の保護カバー200の上端部に開閉自在の蓋400を備え、保護カバー200の内周面下部に水道仕切弁50に密着させて当該円筒内を密閉状態に保持せしめる軟質性部材500・600を介在させることにより、道路面からの土砂流入を防止し且つ地下水流入を完全に防止することができるため、水道仕切弁50の保護を強化することが可能になるのである。
なお、軟質性部材500・600については、水道仕切弁50に密着させて当該円筒内を密閉状態に保持せしめる役割を果たすものであれば良いため、上述した第1固定部510・610、第2固定部530・630の形状・構造については、水道仕切弁の保護カバー及び水道仕切弁の種類・形状・構造などに対応させて適宜変更することができる。例えば、接着手段を用いて水道仕切弁の保護カバー及び水道仕切弁に取りつけることも考えられる。また、水密性を保持することができる他の構成を採用すれば、上述した挟持部531・631の形状・構造を簡素化することも可能である。
A third embodiment of the present invention will be described with reference to FIGS.
The protective cover for the water gate valve of the present embodiment is attached to the outer peripheral surface of the cylindrical main body 210 and the protective cover 200 in which the cylindrical lower part 220 and the cylindrical upper part 230 are inserted and connected to the cylindrical main part 210 made of synthetic resin. The rubber cover 300 is fitted to the inner peripheral surface 41 of the concrete box, the lid 400 is attached to the upper end of the cylindrical upper portion 230 so as to be openable and closable, and the water supply valve 50 is in close contact with the lower inner peripheral surface of the protective cover 200. And a flexible member 500 that holds the inside of the cylinder in a sealed state.
The cylindrical lower part 220 of the protective cover 200 can be formed in a divergent shape like the protective cover described in the first and second embodiments, and the overall structure of the protective cover 200 is a cylinder made of synthetic resin as shown in FIG. The main body 210 may be integrally formed separately from the type in which the cylindrical lower part 220 and the cylindrical upper part 230 are inserted. Moreover, it is preferable that the inner peripheral surface of the protective cover 200 is painted white or fluorescently to facilitate nighttime inspection.
As shown in FIG. 8, the rubber cover 300 includes a short cylindrical portion 310 that is fitted to the outer peripheral surface of a synthetic resin cylindrical main body 210 and is detachably mounted, and a flexible edge that is continuously provided at the upper end thereof. It consists of a part 320 and is bent down to the inner peripheral surface 41 of the concrete box so that the edge part 320 can be fitted. The rubber cover 300 is formed with a shallow groove-shaped drainage or notch (not shown, see FIGS. 2 and 6 of JP-A-2002-138523) on the edge 320 for draining rainwater or the like flowing from the road. Has been. The rubber cover 300 may be a flexible synthetic resin product instead of a rubber product.
The lid 400 is fitted to the upper end portion of the synthetic resin cylindrical upper portion 230 so as to be freely opened and closed, and the diameter of the upper end portion of the synthetic resin cylindrical upper portion 230 is smaller than the diameter of the opening 43 of the concrete box. By forming the cover, the openable / closable lid 400 can be easily taken out from the outside. As shown in FIG. 8, for example, a member having a diameter of 200 millimeters is employed for the cylindrical main body portion 210 and a member having a diameter of 150 millimeters is employed for the cylindrical upper portion 230, thereby reducing the upper end portion of the cylindrical upper portion 230. In this embodiment, a construction example in which the cylindrical upper portion 230 is attached to the outside of the cylindrical main body portion 210 is shown, but a cylindrical upper portion 230a (not shown) that is processed so as to be fitted inside the cylindrical main body portion 210 may be attached. Thus, when it constructs so that the whole cylindrical upper part 230a including the lid | cover 400 may be settled inside the cylindrical main-body part 210, since earth and sand accumulates on the lid | cover 400, collection | recovery of earth and sand becomes easy. When the diameter of the upper end portion of the cylindrical upper portion 230 of the synthetic resin cylinder is larger than the diameter of the opening 43 of the concrete box, there is a problem that it is difficult to take out the lid itself, but the lid itself The problem can be solved by forming a flexible material (soft plastic, soft vinyl chloride resin, rubber, etc.).
As shown in FIGS. 8 and 9, the flexible member 500 that keeps the inside of the cylinder of the protective cover 200 in a sealed state is in close contact with the flange 511 of the water gate valve 50, and the first fixing portion 510 is fixed. A height adjustment part 520 arranged above the fixing part 510 and formed in a bellows shape, and a joint between the cylindrical main body part 210 made of synthetic resin and the cylindrical lower part 220 arranged above the height adjustment part 520. And a second fixing portion 530 that is fixed.
The soft member 500 only needs to play a role as a so-called rubber cover for sealing, and is formed by processing a soft material such as rubber or soft vinyl chloride resin. Moreover, the whole structure of the flexible member 500 is not limited to the type which adheres and fixes to the flange 511 of the water gate valve 50 as shown in FIG.8 and FIG.9, and is a bag shape in the shape surrounding the water gate valve 50. What is necessary is just to be able to shape | mold and to maintain watertightness.
The first fixing portion 510 of the flexible member 500 has a flange portion of the water gate valve 50 corresponding to the diameter of the water pipe 60 of 50 millimeters, 75 millimeters, and 100 millimeters. 9 is formed in a shape in which the diameter gradually decreases downward as shown in FIG. 9, and three semicircular or triangular protrusions 515 are provided on the inner peripheral surface. . The semicircular or triangular projection 515 is fixed by biting into the flange 511 of the water gate valve 50. Here, with respect to the shape of the protrusion 515, an acute angle such as a triangular shape is easier to attach. Moreover, as shown in FIG. 10, you may strengthen attachment using the fixing band 516 made from stainless steel.
As shown in FIG. 9, the height adjustment part 520 of the flexible member 500 is disposed above the first fixing part 510 and formed in a bellows shape. Thereby, even when there is variation in the interval and positional relationship with the water gate valve 50 during construction, it is possible to cope with it.
As shown in FIG. 9, the second fixing portion 530 of the flexible member 500 is disposed above the height adjusting portion 520 and is fitted to the joint portion between the cylindrical main body portion 210 and the cylindrical lower portion 220 made of synthetic resin. The watertightness is maintained at the same time.
9 and 10, the second fixing portion 530 includes a U-shaped holding portion 531 formed by bending the upper end portion outward, and the holding portion 531 includes a cylindrical lower portion 220. The upper end is inserted. In addition, a plurality of hat-shaped or semi-circular protrusions 532 are provided on the outer peripheral surface of the outer portion of the sandwiching portion 531 so that the lower end portion of the cylindrical main body portion 210 can be easily inserted and the water tightness is improved. As shown in FIG. 9, a so-called inflatable rubber ring 533 that absorbs moisture and expands can be attached to the gap between the hat-shaped or semicircular protrusions 532. However, watertightness can be maintained without such an expanded rubber ring 533, but complete water stoppage is possible by attaching the expanded rubber ring 533.
The above describes the specific configuration of the flexible member 500 in the type in which the lower end portion of the cylindrical main body 210 is inserted outside the upper end portion of the cylindrical lower portion 220 with respect to the joint portion between the cylindrical main body portion 210 and the cylindrical lower portion 220. A specific configuration of another flexible member of a type in which the lower end portion of the cylindrical main body portion 211 is inserted inside the upper end portion of the cylindrical lower portion 220 will be described with reference to FIG.
As shown in FIG. 11, the flexible member 600 includes a first fixing portion 610 that is fixed in close contact with the flange 511 of the water gate valve 50, and a high bellows-like shape that is disposed above the first fixing portion 610. It is comprised from the height adjustment part 620 and the 2nd fixing | fixed part 630 which is arrange | positioned above the height adjustment part 620, and is fitted and fixed to the junction part of the cylindrical main-body part 211 made from a synthetic resin, and the cylindrical lower part 220. . Here, the first fixing unit 610 and the height adjusting unit 620 are the same as the first fixing unit 510 and the height adjusting unit 520 described above, and thus description thereof is omitted.
The second fixing portion 630 of the flexible member 600 is fixed by being fitted to the joint portion between the synthetic resin cylindrical main body 211 and the cylindrical lower portion 220 in the same manner as described above, and at the same time, the water tightness is maintained.
As shown in FIG. 11, the second fixing portion 630 includes a U-shaped sandwiching portion 631 formed by bending the upper end portion outward, and the upper end portion of the cylindrical lower portion 220 is inserted into the sandwiching portion 631. It is supposed to be. A plurality of hat-shaped or semi-circular protrusions 632 are provided on the inner peripheral surface and the outer peripheral surface of the inner portion of the holding portion 631. The lower end of the cylindrical main body 211 is inserted along a hat-shaped or semi-circular protrusion 632 provided on the inner peripheral surface of the inner side of the holding portion 631.
As described above, the protective cover of the water gate valve of the present embodiment includes the lid 400 that can be opened and closed at the upper end of the synthetic resin protective cover 200, and the water gate valve 50 is provided at the lower part of the inner peripheral surface of the protective cover 200. By interposing the soft members 500 and 600 that are in close contact to keep the inside of the cylinder in a sealed state, it is possible to prevent inflow of earth and sand from the road surface and completely prevent inflow of groundwater. It is possible to strengthen the protection of
The flexible members 500 and 600 may be any member that has a role of keeping the inside of the cylinder in a sealed state by being in close contact with the water gate valve 50, and thus, the first fixing portions 510 and 610, second described above. About the shape and structure of the fixing | fixed part 530 * 630, it can change suitably according to the kind, shape, structure, etc. of a protective cover of a water gate valve and a water gate valve. For example, it is conceivable to attach the protective cover of the water gate valve and the water gate valve using an adhesive means. Further, if another configuration capable of maintaining watertightness is employed, the shape and structure of the above-described sandwiching portions 531 and 631 can be simplified.

本発明の水道仕切弁の保護カバーは、安価に量産できる。   The protective cover of the water gate valve of the present invention can be mass-produced at low cost.

本発明の実施例1を示す保護カバーの斜視図である。It is a perspective view of the protective cover which shows Example 1 of this invention. 図1に使用するゴムカバーの拡大断面図である。It is an expanded sectional view of the rubber cover used for FIG. 本発明の実施例1の全体説明図である。BRIEF DESCRIPTION OF THE DRAWINGS It is whole explanatory drawing of Example 1 of this invention. 本発明の実施例1の別の全体説明図である。It is another whole explanatory drawing of Example 1 of this invention. 本発明の実施例2の全体説明図である。It is whole explanatory drawing of Example 2 of this invention. 本発明の実施例2の別の全体説明図である。It is another whole explanatory drawing of Example 2 of this invention. 図3に使用する第1ゴムハットの部分断面説明図である。It is a fragmentary sectional view of the 1st rubber hat used for FIG. 本発明の実施例3の全体説明図である。It is whole explanatory drawing of Example 3 of this invention. 図8に使用する軟質性部材の断面説明図である。It is a cross-sectional explanatory drawing of the flexible member used for FIG. 合成樹脂製円筒内を密閉状態に保持せしめる軟質性部材を取りつけた状態を示す部分断面説明図である。It is a partial cross-section explanatory drawing which shows the state which attached the soft member which hold | maintains the inside of a synthetic resin cylinder in the airtight state. 合成樹脂製円筒内を密閉状態に保持せしめる軟質性部材を取りつけた状態を示す別の部分断面説明図である。It is another partial cross-section explanatory drawing which shows the state which attached the soft member which hold | maintains the inside of a synthetic resin cylinder in the airtight state.

符号の説明Explanation of symbols

10、10B 保護カバー
100、100B 円筒部分
101、101B 末広がり部分
11、11B 円筒部分の外周面
12、12B 円筒部分の内周面
20 第1ゴムハット
30 第2ゴムハット
40 コンクリートボックス
41 コンクリートボックスの内周面
43 コンクリートボックスの開口部
50、50B 水道仕切弁
51、51B 水道仕切弁のフランジカバー
60 水道管
200 保護カバー
210 円筒本体部
220 円筒下部
230 円筒上部
300 ゴムカバー
400 蓋
500、600 軟質性部材
DESCRIPTION OF SYMBOLS 10, 10B Protective cover 100, 100B Cylindrical part 101, 101B End spreading part 11, 11B Cylindrical part outer peripheral surface 12, 12B Cylindrical part inner peripheral surface 20 1st rubber hat 30 2nd rubber hat 40 Concrete box 41 Internal peripheral surface of concrete box 43 Concrete box opening 50, 50B Water gate valve 51, 51B Water gate valve flange cover 60 Water pipe 200 Protective cover 210 Cylindrical body portion 220 Cylindrical lower portion 230 Cylindrical upper portion 300 Rubber cover 400 Lid 500, 600 Soft member

Claims (6)

コンクリートボックス内に挿入した合成樹脂製円筒の外周面上部に、前記コンクリートボックスの内周面に嵌着するゴムカバーを装着自在に取りつけ、前記合成樹脂製円筒の上端部に開閉自在の蓋を備え、前記合成樹脂製円筒の内周面下部に水道仕切弁に密着させて当該円筒内を密閉状態に保持せしめる軟質性部材を介在させ、前記軟質性部材は、下方に向かって径が順次減少する形状に形成され水道仕切弁のフランジ部又はその周辺部に密着させて固定する第1固定部と、前記第1固定部の上方に配置され蛇腹状に形成された高さ調整部と、前記高さ調整部の上方に配置され前記合成樹脂製円筒の本体部と下部との接合部に嵌着させて固定する第2固定部とから構成されていることを特徴とする水道仕切弁の保護カバー。 A rubber cover that fits on the inner peripheral surface of the concrete box is attached to the upper portion of the outer peripheral surface of the synthetic resin cylinder inserted into the concrete box, and an openable / closable lid is provided at the upper end of the synthetic resin cylinder. In addition, a soft member that closely contacts the water gate valve and keeps the inside of the cylinder in a sealed state is interposed in the lower part of the inner peripheral surface of the synthetic resin cylinder, and the diameter of the soft member decreases sequentially downward. A first fixed portion formed in a shape and fixed in close contact with the flange portion of the water gate valve or its peripheral portion; a height adjusting portion disposed above the first fixed portion and formed in a bellows shape; and the height A protective cover for a water gate valve, comprising a second fixing portion that is disposed above a height adjusting portion and is fitted and fixed to a joint portion between the main body portion and the lower portion of the synthetic resin cylinder . 前記軟質性部材は、ゴム又は軟質塩化ビニル樹脂等の軟質性を有する素材を加工し水密性を保持するように成形されていることを特徴とする請求項1記載の水道仕切弁の保護カバー。 2. The protective cover for a water gate valve according to claim 1, wherein the soft member is formed so as to maintain a water tightness by processing a soft material such as rubber or soft vinyl chloride resin. 前記合成樹脂製円筒の上部の径をコンクリートボックスの開口部の径よりも小さく形成し、前記合成樹脂製円筒の上端部に備えた開閉自在の蓋を外部から取り出し易くしたことを特徴とする請求項1又は請求項2に記載の水道仕切弁の保護カバー。 Claims wherein the diameter of the upper portion of the synthetic resin-made cylindrical formed smaller than the diameter of the opening of the concrete box, characterized by being easier to take out the openable lid with the upper portion of the synthetic resin-made cylindrical external The protective cover of the water gate valve of Claim 1 or Claim 2 . 前記合成樹脂製円筒の下部の筒部分を末広がり状に形成して対向面が隧道状に切り抜かれた穴を設け、水道仕切弁を嵌入できるようにしたことを特徴とする請求項1乃至請求項3のいずれか1項に記載の水道仕切弁の保護カバー。 Claims 1 to, characterized in that opposing surfaces to form a lower portion of the cylindrical portion of the synthetic resin-made cylindrical diverging shape a hole that has been cut out in tunnel shape and to be fitted tap gate valve The protective cover for the water gate valve according to any one of 3 above. コンクリートボックス内に挿入した合成樹脂製円筒の外周面上部に、前記コンクリートボックスの内周面に嵌着する第1ゴムハットを取りつけると共に、前記合成樹脂製円筒の内周面下部に水道仕切弁のフランジカバーに嵌着する第2ゴムハットを固着した水道仕切弁の保護カバーにおいて、前記合成樹脂製円筒の第2ゴムハットより下方の筒部分を末広がり状に形成して対向面が隧道状に切り抜かれた穴を設け、水道仕切弁を嵌入できるようにしたことを特徴とする水道仕切弁の保護カバー。 A first rubber hat fitted to the inner peripheral surface of the concrete box is attached to the upper portion of the outer peripheral surface of the synthetic resin cylinder inserted into the concrete box, and a flange of the water gate valve is attached to the lower portion of the inner peripheral surface of the synthetic resin cylinder. In the protective cover of the water gate valve to which the second rubber hat to be fitted to the cover is fixed, a hole in which the cylindrical portion below the second rubber hat of the synthetic resin cylinder is formed in a divergent shape and the opposite surface is cut out in a saddle shape. the provided protection cover of water gate valve being characterized in that to be able to fit the water gate valve. 前記合成樹脂製円筒の内周面を白色乃至光線反射色又は蛍光色として夜間点検を容易にしたことを特徴とする請求項1乃至請求項5のいずれか1項に記載の水道仕切弁の保護カバー。 The protection of the water gate valve according to any one of claims 1 to 5, wherein an inner peripheral surface of the synthetic resin cylinder is white to light reflecting color or fluorescent color to facilitate nighttime inspection. cover.
JP2004335238A 2004-03-08 2004-11-19 Protective cover for water gate valve Expired - Fee Related JP4036379B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004335238A JP4036379B2 (en) 2004-03-08 2004-11-19 Protective cover for water gate valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004063760 2004-03-08
JP2004335238A JP4036379B2 (en) 2004-03-08 2004-11-19 Protective cover for water gate valve

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JP4036379B2 true JP4036379B2 (en) 2008-01-23

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AU2009213106B2 (en) * 2009-07-16 2016-10-20 Anthony Richard Humphreys A Fire Hydrant Insect Seal
WO2011006215A1 (en) * 2009-07-16 2011-01-20 Anthony Richard Humphreys Barrier device for water reticulation component
KR101128268B1 (en) * 2009-07-28 2012-03-26 주식회사 미래산업 The waterworks meter cover can insulation absence collection of sealing up construction
KR101575600B1 (en) * 2015-04-08 2015-12-22 이동헌 Gate valve integral protecting cover
KR101785432B1 (en) * 2017-03-30 2017-10-16 (주) 디케이금속 Cover for regulating valve having valve key guide

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