JPH0734475A - Rainwater intrusion preventing structure for cover for underground conduit - Google Patents
Rainwater intrusion preventing structure for cover for underground conduitInfo
- Publication number
- JPH0734475A JPH0734475A JP5198971A JP19897193A JPH0734475A JP H0734475 A JPH0734475 A JP H0734475A JP 5198971 A JP5198971 A JP 5198971A JP 19897193 A JP19897193 A JP 19897193A JP H0734475 A JPH0734475 A JP H0734475A
- Authority
- JP
- Japan
- Prior art keywords
- water
- gas vent
- hole
- vent hole
- ring
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 230000002265 prevention Effects 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、マンホール蓋等の地中
管路用蓋に設けられているガス抜き孔などの透孔から雨
水が浸入するのを防止する雨水浸入防止構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rainwater intrusion preventing structure for preventing rainwater from intruding through a through hole such as a gas vent hole provided in an underground conduit lid such as a manhole lid.
【０００２】[0002]
【従来の技術】マンホール蓋には地中にガスが充満する
のを防止するためのガス抜き孔が複数個設けられている
ことが多く、下水管内などで発生したガスはこのガス抜
き孔を通って地上に排出される。2. Description of the Related Art A manhole cover is often provided with a plurality of gas vent holes for preventing the underground from being filled with gas. Gas generated in a sewer pipe passes through the gas vent holes. Are discharged to the ground.
【０００３】ところが、マンホール蓋にガス抜き孔を設
けると、このガス抜き孔からマンホール内に無視できな
い量の雨水が浸入して下水管などに流れ込んでしまう。
下水管に雨水が浸入すれば下水処理施設での処理水量が
増し、下水処理コストの増大を招く。雨水の浸入を防止
するために、ガス抜き孔を設けないマンホール蓋も採用
されているが、比較的ガスの発生が少ない管路にしか用
いることができない。However, when the manhole cover is provided with a gas vent hole, a considerable amount of rainwater enters the manhole through the gas vent hole and flows into a sewer pipe or the like.
If rainwater enters the sewage pipe, the amount of treated water in the sewage treatment facility will increase, leading to an increase in sewage treatment cost. A manhole cover without a gas vent is also used to prevent the intrusion of rainwater, but it can only be used for pipelines that generate relatively little gas.
【０００４】そこで、ガス抜き孔に通常はゴム栓を嵌め
込んでおき、必要に応じてこのゴム栓を抜いてガスを排
出させたり、マンホール内のガス圧が上昇すると開弁す
る機械的弁装置をガス抜き孔に取り付けるといったこと
が行われている。Therefore, a rubber valve is usually fitted in the gas vent hole, and the rubber valve is pulled out to discharge gas as needed, or a mechanical valve device opens when the gas pressure in the manhole rises. Is attached to the gas vent hole.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、ゴム栓
の嵌込み・抜取りの繰り返しはきわめて手数がかかり、
また機械的弁装置は高価なものとならざるを得ない。However, it is extremely troublesome to repeatedly insert and remove the rubber plug,
In addition, mechanical valve devices are inevitably expensive.
【０００６】したがって、本発明は必要に応じて自動的
にガス抜き孔などの透孔を開閉する安価な雨水浸入防止
構造の提供を目的とする。Therefore, an object of the present invention is to provide an inexpensive rainwater intrusion prevention structure which automatically opens and closes a through hole such as a gas vent hole as needed.
【０００７】[0007]
【課題を解決するための手段】この目的を達成するた
め、本発明の地中管路用蓋の雨水浸入防止構造は、マン
ホール蓋や汚水マス蓋等の地中管路用蓋に設けられてい
るガス抜き孔や持上げ用孔などの透孔に、原形復帰性を
有するリング状の水膨張性シール部材を取り付けたもの
である。To achieve this object, the rainwater intrusion prevention structure for an underground conduit lid of the present invention is provided in an underground conduit lid such as a manhole cover or a sewage mass lid. A ring-shaped water-expandable seal member having a property of returning to its original shape is attached to a through hole such as a gas vent hole or a lifting hole.
【０００８】[0008]
【作用】シール部材はリング状なので貫通孔を備えてい
る。雨水と接触するとシール部材は透孔内で膨張し、貫
通孔が閉塞されるように変形する。雨があがるとシール
部材は原形に復帰し、再び貫通孔が形成されることとな
る。Since the seal member is ring-shaped, it has a through hole. Upon contact with rainwater, the seal member expands in the through hole and deforms so that the through hole is closed. When the rain is lifted, the seal member returns to its original shape and the through hole is formed again.
【０００９】[0009]
【実施例】以下、本発明の実施例を図面を参照して説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１０】図１は本発明に係る雨水浸入防止構造を備
えたマンホール蓋の平面図、図２はマンホール蓋の断面
図である。FIG. 1 is a plan view of a manhole cover having a rainwater intrusion prevention structure according to the present invention, and FIG. 2 is a sectional view of the manhole cover.
【００１１】マンホール蓋１（地中管路用蓋）には複数
個のガス抜き孔３が設けられていて、このガス抜き孔３
内には水膨張性ゴムリング５（シール部材）が嵌め着け
られている。The manhole cover 1 (cover for underground pipe) is provided with a plurality of gas vent holes 3, and the gas vent holes 3 are provided.
A water-expandable rubber ring 5 (sealing member) is fitted inside.
【００１２】なお、図中７は鍵孔である。Reference numeral 7 in the drawing is a keyhole.
【００１３】図３は雨水浸入防止構造の詳細を示す断面
図である。FIG. 3 is a sectional view showing the details of the rainwater intrusion prevention structure.
【００１４】ガス抜き孔周面９には環状の嵌込み溝１１
が形成されていて、この嵌込み溝１１に断面円形の水膨
張性ゴムリング５が嵌め着けられている。通常は、水膨
張性ゴムリング５の貫通孔１３によってガス抜き孔３は
開状態となっているが、雨水と接触するとこの水膨張性
ゴムリング５は膨張し、図４に示すようにガス抜き孔周
面９に規制されて貫通孔１３が閉塞されるように変形す
る。したがって、ガス抜き孔３は閉状態となり、マンホ
ール内への雨水の浸入は阻止される。その後、雨があが
ると水膨張性ゴムリング５は図３に示す原形に復帰す
る。An annular fitting groove 11 is formed on the peripheral surface 9 of the gas vent hole.
Is formed, and the water-expandable rubber ring 5 having a circular cross section is fitted into the fitting groove 11. Normally, the gas vent hole 3 is opened by the through hole 13 of the water-expandable rubber ring 5, but when contacting rainwater, the water-expandable rubber ring 5 expands, and as shown in FIG. It is deformed so that the through hole 13 is restricted by the hole peripheral surface 9 and is closed. Therefore, the gas vent hole 3 is closed, and rainwater is prevented from entering the manhole. After that, when it rains, the water-expandable rubber ring 5 returns to the original shape shown in FIG.
【００１５】図５は雨水浸入防止構造の変更例を示す断
面図である。FIG. 5 is a sectional view showing a modification of the rainwater intrusion prevention structure.
【００１６】水膨張性ゴムリング１５は断面四角形に形
成され、ガス抜き孔周面１７に接着剤１９を用いて嵌め
着けられている。The water-expandable rubber ring 15 is formed to have a quadrangular cross section, and is fitted on the peripheral surface 17 of the gas vent hole with an adhesive 19.
【００１７】図６は雨水浸入防止構造の他の変更例を示
す断面図である。FIG. 6 is a sectional view showing another modification of the rainwater intrusion prevention structure.
【００１８】水膨張性ゴムリング２１は筒状部２３とフ
ランジ部２５とから形成され、筒状部２３がガス抜き孔
３に下側から嵌め込まれている。嵌込みに際しては接着
剤を使用してもよい。このように構成することにより、
水膨張性ゴムリングの取付け及び交換が容易となり、し
かも車両の通過などによって水膨張性ゴムリングが破損
するおそれもない。The water-expandable rubber ring 21 is formed of a tubular portion 23 and a flange portion 25, and the tubular portion 23 is fitted into the gas vent hole 3 from below. An adhesive may be used for fitting. By configuring in this way,
The water-expandable rubber ring can be easily attached and replaced, and there is no fear that the water-expandable rubber ring will be damaged due to passage of a vehicle.
【００１９】[0019]
【発明の効果】以上説明したように、本発明の雨水浸入
防止構造は、通常は開状態である水膨張性シール部材を
用い、この水膨張性シール部材が雨水と接触すると透孔
を閉塞するというものなので、安価に構成できるもので
ありながら効果的に雨水の浸入を防止することができ
る。As described above, the rainwater intrusion prevention structure of the present invention uses a water-expandable seal member which is normally in an open state, and when this water-expandable seal member comes into contact with rainwater, the through hole is closed. Therefore, it is possible to effectively prevent the intrusion of rainwater while being inexpensive.
【図１】本発明に係る雨水浸入防止構造を備えたマンホ
ール蓋の平面図である。FIG. 1 is a plan view of a manhole cover provided with a rainwater intrusion prevention structure according to the present invention.
【図２】マンホール蓋の断面図である。FIG. 2 is a sectional view of a manhole cover.
【図３】雨水浸入防止構造の詳細を示す断面図である。FIG. 3 is a cross-sectional view showing details of a rainwater intrusion prevention structure.
【図４】水膨張性ゴムリングの膨張状態を示す断面図で
ある。FIG. 4 is a cross-sectional view showing an expanded state of a water-expandable rubber ring.
【図５】雨水浸入防止構造の変更例を示す断面図であ
る。FIG. 5 is a cross-sectional view showing a modified example of the rainwater intrusion prevention structure.
【図６】雨水浸入防止構造の他の変更例を示す断面図で
ある。FIG. 6 is a cross-sectional view showing another modified example of the rainwater intrusion prevention structure.
１ マンホール蓋（地中管路用蓋） ３ ガス抜き孔（透孔） ５，１５，２１ 水膨張性ゴムリング（シール部材） 1 Manhole cover (underground conduit cover) 3 Gas vent hole (through hole) 5,15,21 Water-expandable rubber ring (seal member)
Claims (1)
原形復帰性を有するリング状の水膨張性シール部材を取
り付けたことを特徴とする地中管路用蓋の雨水浸入防止
構造。1. A through hole provided in a cover for an underground pipe,
A rainwater intrusion prevention structure for an underground pipe lid, characterized in that a ring-shaped water-expandable sealing member having a shape-returning property is attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5198971A JP2534640B2 (en) | 1993-07-17 | 1993-07-17 | Rainwater intrusion prevention structure for lid for underground pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5198971A JP2534640B2 (en) | 1993-07-17 | 1993-07-17 | Rainwater intrusion prevention structure for lid for underground pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0734475A true JPH0734475A (en) | 1995-02-03 |
| JP2534640B2 JP2534640B2 (en) | 1996-09-18 |
Family
ID=16399977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5198971A Expired - Fee Related JP2534640B2 (en) | 1993-07-17 | 1993-07-17 | Rainwater intrusion prevention structure for lid for underground pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2534640B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024029010A1 (en) * | 2022-08-03 | 2024-02-08 | 日本電信電話株式会社 | Lid for underground structure, gas exhaust system, and method for constructing gas exhaust system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6255965B2 (en) | 2013-09-30 | 2018-01-10 | 横浜ゴム株式会社 | Vertical pneumatic fender and monitoring method thereof |
-
1993
- 1993-07-17 JP JP5198971A patent/JP2534640B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024029010A1 (en) * | 2022-08-03 | 2024-02-08 | 日本電信電話株式会社 | Lid for underground structure, gas exhaust system, and method for constructing gas exhaust system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2534640B2 (en) | 1996-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7744305B2 (en) | Manhole with locking device | |
| US4305679A (en) | Manhole sealing device | |
| KR100614939B1 (en) | Flow backward prevention establishment structure of manhole for road | |
| US4030851A (en) | Manhole closure including a two-way pressure relief valve | |
| CZ198596A3 (en) | Device preventing over-flow of water | |
| KR100915632B1 (en) | Apparatus for preventing ill-smelling of a drainage | |
| KR200485881Y1 (en) | Odor Prevention Device for Sewer | |
| JP2011111856A (en) | Manhole cover | |
| AU636749B2 (en) | Valve assembly | |
| JP2534640B2 (en) | Rainwater intrusion prevention structure for lid for underground pipe | |
| US7096516B1 (en) | Alarming plumbing screen | |
| JP6083759B2 (en) | Opening cover structure of underground space structure | |
| KR100700175B1 (en) | A manhole cover for sewage water | |
| JPH09137461A (en) | Manhole cover | |
| US7013501B2 (en) | Flood protection apparatus | |
| KR200351993Y1 (en) | Device for blocking reverse flow of sewage | |
| JPH11210070A (en) | Lid for catch basin | |
| JP6764282B2 (en) | Drainage lid | |
| KR200318099Y1 (en) | Offensive smeel leakage check apparatus of drainage manhole | |
| KR200338761Y1 (en) | A stink trap for manholes | |
| JPH0748763Y2 (en) | Drain valve | |
| JP2599340B2 (en) | Fire hydrant | |
| JP2831236B2 (en) | Air valve | |
| KR200378262Y1 (en) | shutting tightly for manhole | |
| KR200338590Y1 (en) | Check valve for sewer pipe and so forth |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080627 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090627 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090627 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100627 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100627 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110627 Year of fee payment: 15 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120627 Year of fee payment: 16 |
|
| LAPS | Cancellation because of no payment of annual fees |