KR20080098988A - Manhole cover device - Google Patents

Manhole cover device Download PDF

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Publication number
KR20080098988A
KR20080098988A KR1020070044510A KR20070044510A KR20080098988A KR 20080098988 A KR20080098988 A KR 20080098988A KR 1020070044510 A KR1020070044510 A KR 1020070044510A KR 20070044510 A KR20070044510 A KR 20070044510A KR 20080098988 A KR20080098988 A KR 20080098988A
Authority
KR
South Korea
Prior art keywords
flap
opening
manhole
manhole cover
cover device
Prior art date
Application number
KR1020070044510A
Other languages
Korean (ko)
Inventor
김영관
윤준호
Original Assignee
김영관
윤준호
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 김영관, 윤준호 filed Critical 김영관
Priority to KR1020070044510A priority Critical patent/KR20080098988A/en
Publication of KR20080098988A publication Critical patent/KR20080098988A/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1436—Covers for manholes or the like; Frames for covers with overflow or explosion control means, e.g. check or relief valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/041—Accessories therefor
    • E03F5/0411—Devices for temporarily blocking inflow into a gully
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/042—Arrangements of means against overflow of water, backing-up from the drain
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F2005/0416—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0401—Gullies for use in roads or pavements
    • E03F5/0405—Gullies for use in roads or pavements with an odour seal

Abstract

A manhole cover apparatus is provided to make the discharge and backflow function through one hinge-coupled flap. A manhole cover apparatus comprises a chamber(120) in which the jaw(33) is formed in order to hang on the upper end protrusion(17) of manhole, an opening(121) formed in the bottom of partition member, an opening/closing device opening and closes the opening. The opening/closing device includes flap(88), a supporter(60) chain-installed from flap, a hinge section(61) which is positioned between flap and supporter and is hinge-coupled with the partition member, a weight(15) fixed to the supporter and an air pocket(65 : buoyancy means).

Description

Manhole cover device

1 is a three-dimensional view showing an example of a conventional manhole cover device,

Figure 2 is a cross-sectional view for explaining the operation process at the time of drainage in the manhole conventional manhole cover device is installed,

Figure 3 is a cross-sectional view for explaining the operation of the reverse flow in the manhole conventional manhole cover device is installed,

Figure 4 is a three-dimensional view showing an example of the manhole cover device of the present invention,

5 is a cross-sectional view for explaining the operation of the drainage in the manhole is installed manhole cover device of the present invention,

6 is a cross-sectional view for explaining an operation process at the time of backflow in the manhole provided with the manhole cover device of the present invention;

7 is a cross-sectional view showing another example of the manhole cover device of the present invention;

8 is a cross-sectional view showing still another example of the manhole cover device of the present invention;

9 is a three-dimensional view showing another example of the opening and closing device of the manhole cover device of the present invention.

* Description of the symbols for the main parts of the drawings *

1, 101-manhole cover 2-mesh

4-manhole body 7, 19, 61-hinge

10,15-weight 13-drain

17-Upper step 18-Reservoir

20,120-Body of manhole cover device 21,121-Opening

22a, 22b-Drain flap 23a, 23b-Backflow flap

30, 130-Rainwater 33-Jams

45-Switchgear 50-Manhole

55-rubber plate 16,60-support

65-buoyancy means 88-flaps

The present invention relates to a manhole cover device that can block the larvae such as mosquitoes, flies, etc. by blocking the drainage tanks such as the manhole from the outside, in particular, the drainage is smoothly made through the manhole during the rainy season and rainy season In many cases, when a backflow occurs through the manhole, the present invention relates to providing a manhole cover device having a structure capable of protecting the device by efficiently responding to the backflow.

In general, the manhole 50 having the storage tank 18 at the bottom is configured such that the drain pipe 13 is installed at the middle of the manhole body 4 and the mesh 2 is placed on the upper step 17 of the manhole body. It is.

The manhole is constructed as described above, so that the upper part is kept open, providing a breeding ground for harmful insects of flies and mosquitoes in the dry season without rain, and odors are generated from sludge and dirt accumulated in the storage tank at the bottom of the manhole. It may diverge to the ground. In addition, since foreign matters such as fallen leaves fall through the opening of the manhole and accumulate in the storage tank, there is a problem that the cycle of cleaning the storage tank is shortened.

Korean Patent Publication No. 2003-11901 is disclosed as one example of a manhole cover device for solving the above problems.

The structure of the conventional manhole cover device 1 will be described with reference to FIGS. 1 to 3.

The conventional manhole cover device has a tubular body 20 having an opening 21 and a drain flap 22a coupled to the tubular body by using a hinge 7 so as to be opened only when drained in a state of shielding the opening 21. 22b and backflow flaps 23a and 23b coupled to each of the drainage flaps 22a and 22b using hinges 19 so that they can be opened only when water flows back from the manhole. Further, the drain flaps 22a and 22b are added to the support 16 of the drain flap extending by a predetermined length from the hinge 7 engaging portion to the outside of the opening so that the drain flaps 22a and 22b can normally maintain the state of shielding the opening 21. 10 is installed.

The conventional manhole cover device 1 configured as described above has water 30 when the water 30 accumulates on the manhole cover device in a state in which the drain flaps 22a and 22b shield the opening 21 as shown in FIG. 2. Since the weight 10 is lifted by the load of the drain flaps 22a and 22b, the water 30 is discharged into the manhole 50, and after the water 30 is discharged, the weight 10 is again released. By the action of, the drain flaps 22a and 22b are moved to their original positions.

 On the contrary, when rainwater flows back from the drain pipe 13 due to heavy rainfall during the rainy season or the like, as shown in FIG. 3, the backflow flaps 23a and 23b may be naturally opened by the pressure of the rainwater flowing back, thereby protecting the manhole cover device. Do it.

However, in the conventional manhole cover device 1 configured as described above, not only the opening angle size of the backflow flaps 23a and 23b is limited, but also the backflow by the backwater because the backflow pressure is concentrated in the arrow part during the backflow of the rainwater. There is a problem that the flaps 23a and 23b are broken.

Of course, the opening angle of the back flow flap can be increased to reduce the pressure during back flow, but in this case, when the back flow is released, the back flow flap does not return to its original position, so the manhole cover device It loses its function as.

In addition, since the opening is provided in the area of the drain flap to hinge the back flow flap, the size of the outlet of the water flowing back is limited, so if the back flow is excessive, the apparatus may be damaged by the back flow water pressure.

In particular, the backflow flaps 23a and 23b, which are extremely small compared to the driving frequency of the drain flaps 22a and 22b, are rarely operated for a long time (some times a year and sometimes several times a year). If left unattended, there is a structural problem that rust may occur in the hinge portion or foreign matters are easily attached and harden, and thus the smooth opening and closing function may be lost.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a manhole cover device capable of simultaneously implementing a drainage and backflow function with only one pair of flaps.

Still another object of the present invention is to provide a manhole cover device having excellent drainage and backflow functions at the low cost and having the same drainage and backflow capacity.

Another object of the present invention to provide a manhole cover device that can prevent the odor and habitat of harmful insects.

In order to achieve the above object, the present invention provides a manhole cover device having a cylindrical shape, and a flap is provided to open and close an opening formed at a bottom of the cylindrical body through a hinge, and the flap has a predetermined length around the hinge part. It is provided with a weight and a buoyancy device in the body of the flap extending outside the cylinder. In particular, the weight acts so that the flap can be opened only when drained in a state that normally shields the opening of the cylinder, and when the backflow level rises above the location area where the buoyancy device is installed, the buoyancy device is driven by the pressure of the water flowing back As it rises above the water surface, the support on the outside of the flap is lifted in the process to force the flap to open.

The manhole cover device 101 of the present invention includes a cylinder 120 in which a locking jaw 33 is formed to be caught by an upper step 17 of a manhole, an opening 121 formed in a bottom of the cylinder, and the opening. It consists of an opening and closing device 45 to be engaged, the opening and closing device is a flap 88 and the support body 60 protruded from the flap, the hinge portion 61 is located between the flap and the support and hinged to the cylinder ) And a weight 15 and buoyancy means 65 fixed to the support,

The weight 15 is lifted by the weight of the water when a predetermined amount or more of water is stored in the cylinder in the state that the flap shields the opening by the weight, so that the flap can be temporarily opened,

The buoyancy means (65) is characterized in that it is configured to be lifted by the pressure of the water flow back when the water flows back into the manhole so that the flap can be opened.

In addition, the weight of the weight 15 is configured to be included in the weight of the buoyancy means 65 is characterized in that the buoyancy means is configured to serve as the weight role.

In addition, the opening and closing device is characterized in that one or a pair is arranged symmetrically.

In addition, the buoyancy means is characterized in that it is composed of a rubber bag or styrofoam of the rubber material, the barrel of the plastic material empty inside.

In addition, the cylinder is characterized in that the tapered.

In addition, the support and the flap is fixed to the weight and buoyancy means is characterized in that configured to form a predetermined angle.

Hereinafter, the technical configuration and effect of the manhole cover device of the present invention will be described in detail with reference to FIGS. 4 to 9.

The manhole cover of the present invention so as to span the upper step of 17 or the upper step of the sewer pipe, such as the manhole 50 having a storage tank 18 and a drain pipe 13 communicating with the side of the manhole body 4 at the upper end of the storage tank. The device 101 is installed.

In addition, the mesh body 2 of the mesh type is installed on the upper part of the manhole cover device 101 so as to prevent falling leaves or foreign matters from falling into the manhole.

The mesh body 2 and the manhole cover device 101 preferably use a metal material such as a zinc plated steel plate or a stainless steel plate to maintain durability or function. However, the mesh body 2 and the manhole cover device 101 are not limited to the metal material. do.

Manhole cover device 101 of the present invention is configured in a cylindrical body or the like 120 or similar to the shape of the manhole, a locking projection 33 protruding around the upper end of the cylinder and the lower portion of the cylinder The opening 121 is provided.

The opening and closing device 45 for opening and closing the opening includes a flap 88, a support 60 protruding from the flap, and a hinge portion which engages a boundary between the support and the flap to the cylinder to be rotated by a predetermined angle ( 61, a weight 15 and a buoyancy means 65 fixed to the support. The weight 15 is attached to the support by separately attaching a metal material of about 0.2-1Kg, or by making the thickness of a portion of the support relatively thicker than the thickness of the flap so that the weight of the support portion is heavier than the weight of the flap Additional roles may be combined. In addition, by adding the weight of the weight 15 to the buoyancy means 65, the buoyancy means may serve as the weight 15 at the time of drainage.

In addition, the buoyancy means 65 may be composed of a styrofoam strong buoyancy against water, a plastic container having a space therein, an air bag made of rubber, or the like as shown in FIGS. 4 and 9.

In addition, the closing device 45 may be provided with a pair to be symmetrical to the lower part of the cylinder to open and close the opening, or as shown in FIG.

In addition, a soft rubber plate 55 may be attached to the flap 88 that shields the opening 121 so as to secure airtightness when the opening is shielded.

An operation process of the manhole cover device 101 of the present invention configured as described above will be described with reference to FIGS. 5 and 6.

First, the drainage process will be described with reference to FIG. 5. As shown in FIG. 5, the catching jaw 33 is installed on the upper stepped portion 17 of the manhole, and rainwater or sewage is introduced into the cylinder through the mesh in a state in which the mesh 2 is installed on the manhole cover device 101. When injected, the rainwater 30 maintains a state of shielding the opening 121 by the weight of the weight until the rainwater 30 stores less than the weight of the weight 15 in the cylinder. Since the weight 15 is lifted by the weight of the rainwater, the flap 88 is temporarily opened to drain the stored rainwater 30, and the flap and the weight move to their original positions to shield the opening again.

On the other hand, the process of discharging the rainwater flowing back from the inside of the manhole to the outside will be described with reference to FIG. When rain flows through the manhole due to heavy rainfall during the rainy season, when the backwater does not reach the position of the buoyancy means 65, the flap is in a state of shielding the opening 121, and then the backwater rainwater 130 In the case of rising back up to a height higher than the position of the buoyancy means 65, the buoyancy means 65 is lifted by the hydraulic pressure of the rainwater 130 to flow back, and eventually the flap 88 fixed to the support is hinged Since the branch 61 is rotated by a predetermined angle and is forcibly opened, the rainwater 130 flowing backward is discharged to the outside of the manhole.

In particular, the angle between the flap 88 and the support 60 to which the buoyancy means 65 is fixed can be appropriately adjusted according to the shape of the cylinder so that the opening angle of the flap 88 can be maintained at the maximum in the reverse flow.

When the cylindrical body 120 is tapered by a predetermined angle as shown in FIG. 4, the angle between the flap 88 and the support 60 is within a range of about 70 to 145 degrees so that the flap is raised when the buoyancy means is maximized. The end of 88 is configured to extend as far as the manhole wall.

As described above, the end of the flap 88 opens toward the manhole wall and is located close to the manhole wall, thereby minimizing the flow of the flap due to the vortex of the water flowing back, and at least the open flap flows to block the opening. You can avoid trying to.

That is, in the manhole cover device of the present invention, as the amount of backflow of the rainwater increases, the flap is more securely opened and the opening angle is increased, thereby maximally releasing water that flows back stably by utilizing the opening area to the outside of the manhole.

Manhole cover device 101 of the present invention is not limited to the structure shown in Figures 4 and 7, as shown in Figure 8 is configured so that the central portion of the cylinder 120 is convex gourd shape, the hinge portion (convex portion) 61 may be provided so that an extra space is formed between the cylinder 120 and the support 60 even if the flap 88 is sufficiently opened. When the flap 88 is fully opened as described above, an extra space is formed between the cylinder 120 and the support 60, even if a floating material or the like floats on the water surface in the manhole during backflow. The material may be sandwiched between the cylinder 120 and the support 60 so that the opening of the flap 88 is not obstructed.

The present invention can maximize the drainage capacity for the reverse flow by opening the opening area to the maximum at the time of reverse flow, it is possible to obtain the effect of preventing the cover device of the manhole is damaged by hydraulic pressure.

In addition, since it is not necessary to separately install the backflow flap, there is no concern about the malfunction of the backflow flap and the effect of lowering the manufacturing cost can be obtained.

In addition, by opening the flap only at the time of drainage and backflow, the odor in the manhole can be prevented from leaking to the outside, and harmful insects such as flies and mosquitoes can be prevented from living in the manhole.

Claims (5)

A manhole cover device comprising a cylinder having a locking step formed to be caught by an upper step of a manhole, an opening formed at a bottom of the cylinder, and an opening and closing device for closing the opening. The opening and closing device is composed of a flap, a support extending from the flap, a hinge portion positioned between the flap and the support and hinged to the cylinder, weights and buoyancy means fixed to the support, The weight is lifted by the weight of the water when the flap is shielding the opening by the weight of the water when a predetermined amount or more is stored in the cylinder, and the flap can be temporarily opened, The buoyancy means is a manhole cover device, characterized in that when the water flows back into the manhole is lifted by the pressure of the back flow water so that the flap can be opened. The method of claim 1, The weight of the weight is configured to be included in the weight of the buoyancy means to the manhole cover device, characterized in that the buoyancy means is configured to serve as the weight. The method according to claim 1 or 2, The opening and closing device is a manhole cover device, characterized in that one or a pair is arranged symmetrically. The method according to claim 1 or 2, The buoyancy means is a manhole cover device, characterized in that consisting of air bags or styrofoam. The method according to claim 1 or 2, The manhole cover device, characterized in that the cylinder is tapered.
KR1020070044510A 2007-05-08 2007-05-08 Manhole cover device KR20080098988A (en)

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KR1020070044510A KR20080098988A (en) 2007-05-08 2007-05-08 Manhole cover device

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100893872B1 (en) * 2008-11-13 2009-04-17 (주)태평개발 Odor preventing drain cover of manhole
KR101050751B1 (en) * 2009-04-23 2011-08-01 한정욱 Manhole Odor Blocker
KR101124771B1 (en) * 2009-11-26 2012-03-23 정균 A bad smell block an apparatus
KR101301697B1 (en) * 2011-09-19 2013-08-30 박찬웅 Manhole open and shut equipment for rain water
CN106869240A (en) * 2017-04-05 2017-06-20 浙江水利水电学院 Sponge Urban Underground tank water is stored, extraction element and operation method
KR20180015657A (en) * 2015-06-05 2018-02-13 노비니움, 인크. Ventilation systems for manhole bolts
CN111021512A (en) * 2019-12-18 2020-04-17 雷美玉 Sewage floor drain capable of preventing odor from flowing out and automatically opening and closing by virtue of buoyancy
CN111705841A (en) * 2020-05-13 2020-09-25 水利部交通运输部国家能源局南京水利科学研究院 Well cover structure for reducing and avoiding drainage shaft blowout and response method thereof
US11346566B2 (en) 2016-03-31 2022-05-31 Novinium, Inc. Smart system for manhole event suppression system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100893872B1 (en) * 2008-11-13 2009-04-17 (주)태평개발 Odor preventing drain cover of manhole
KR101050751B1 (en) * 2009-04-23 2011-08-01 한정욱 Manhole Odor Blocker
KR101124771B1 (en) * 2009-11-26 2012-03-23 정균 A bad smell block an apparatus
KR101301697B1 (en) * 2011-09-19 2013-08-30 박찬웅 Manhole open and shut equipment for rain water
KR20180015657A (en) * 2015-06-05 2018-02-13 노비니움, 인크. Ventilation systems for manhole bolts
US11561023B2 (en) 2015-06-05 2023-01-24 Novinium, Llc Ventilation system for manhole vault
US11346566B2 (en) 2016-03-31 2022-05-31 Novinium, Inc. Smart system for manhole event suppression system
CN106869240A (en) * 2017-04-05 2017-06-20 浙江水利水电学院 Sponge Urban Underground tank water is stored, extraction element and operation method
CN111021512A (en) * 2019-12-18 2020-04-17 雷美玉 Sewage floor drain capable of preventing odor from flowing out and automatically opening and closing by virtue of buoyancy
CN111705841A (en) * 2020-05-13 2020-09-25 水利部交通运输部国家能源局南京水利科学研究院 Well cover structure for reducing and avoiding drainage shaft blowout and response method thereof

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