US20210180267A1 - Road gutter having dust collection function - Google Patents

Road gutter having dust collection function Download PDF

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Publication number
US20210180267A1
US20210180267A1 US17/052,745 US201917052745A US2021180267A1 US 20210180267 A1 US20210180267 A1 US 20210180267A1 US 201917052745 A US201917052745 A US 201917052745A US 2021180267 A1 US2021180267 A1 US 2021180267A1
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US
United States
Prior art keywords
cover plug
road
drainage
drainage ditch
dust collection
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.)
Abandoned
Application number
US17/052,745
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English (en)
Inventor
XianMin Xu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Sangkang Environment Technology Co Ltd
Original Assignee
Shanghai Sangkang Environment Technology Co Ltd
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 Shanghai Sangkang Environment Technology Co Ltd filed Critical Shanghai Sangkang Environment Technology Co Ltd
Assigned to Shanghai Sangkang Environment Technology Co., Ltd. reassignment Shanghai Sangkang Environment Technology Co., Ltd. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: XU, Xianmin
Publication of US20210180267A1 publication Critical patent/US20210180267A1/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • E01C11/221—Kerbs or like edging members, e.g. flush kerbs, shoulder retaining means ; Joint members, connecting or load-transfer means specially for kerbs
    • E01C11/223—Kerb-and-gutter structures; Kerbs with drainage openings channel or conduits, e.g. with out- or inlets, with integral gutter or with channel formed into the kerb ; Kerbs adapted to house cables or pipes, or to form conduits
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • E01C11/224—Surface drainage of streets
    • E01C11/227—Gutters; Channels ; Roof drainage discharge ducts set in sidewalks
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • E03F3/046—Open sewage channels
    • 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
    • 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
    • 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
    • E03F5/0402—Gullies for use in roads or pavements provided with flushing means for cleaning or emptying

Definitions

  • a road dust collection and drainage canal relates to an urban road drainage canal capable of automatically cleaning a road using natural wind, traffic stream whirlwind and rainwater to reduce dust and gathered water on the road, especially the drainage ditch with the function of the curbstone in the same time and belongs to the field of urban road construction.
  • the Chinese patent “Self-cleaning Road and Bag-type Dust Collection and Drainage Canal” with the patent application No. 201720767705.5, and the Chinese patent “Road Dust Collection and Drainage Canal” with the patent application No. 2017211526433 disclose an urban road drainage canal capable of automatically cleaning a road using natural wind, traffic stream whirlwind and rainwater, and automatically collecting and removing dust.
  • the present invention provides a new structure of the road dust collection and drainage canal based on the above invention advantages, which not only retains the advantages of the self-cleaning road in the above patent, but also has features of improved robustness, simple construction and maintenance, low construction cost and the like.
  • the present invention has the following advantages.
  • the present invention has an advantage of reducing frequency of mechanical or manual road cleaning and saving money for municipal governments.
  • the present invention has another advantage of effectively reducing flooding on a road and effectively improving an impact resistance of the road, thus guaranteeing a driving safety.
  • the present invention has a further advantage that the road dust collection and drainage canal may be used after simple installation without additional fixing with cement mortar, is convenient for mechanized construction and maintenance, and is easily replaced as a wearing part.
  • the present invention is intended to design an urban road drainage canal having a self-cleaning function, especially automatically cleaning a road using natural wind, traffic stream whirlwind and rainwater, and automatically collecting and removing dust.
  • a road dust collection and drainage canal includes a drainage ditch and a cover plug that covers the drainage ditch, wherein the drainage ditch is used for collecting dust, debris and rainwater on a road, and the cover plug is higher than a road surface and plays a role of a curbstone or a road edge stone, so as to guarantee that a motor vehicle runs in a motor vehicle lane.
  • the cover plug should take into account an effect of the curbstone, should be subjected to an impact force in a horizontal right direction of a vehicle, and should also be subjected to a downward rolling force of the vehicle, and meanwhile, an impact force to a left end of the cover plug under braking of the vehicle also includes a vertically upward impact force component, and the vertically upward force enables the cover plug to rotate clockwise around a force bearing point at a right end.
  • a roadside edge of a road surface is provided with a dust collection and drainage canal
  • the dust collection and drainage canal comprises a U-shaped drainage ditch adjacent to the roadside edge and a cover plug that covers the drainage ditch;
  • a side surface of the cover plug is in a T-shape, a cover plug head is embedded in the drainage ditch, and cover plug shoulders are supported on platforms formed by left and right ditch walls of the drainage ditch to bear a weight of the whole cover plug;
  • a front surface of the cover plug is in an inverted U-shape, a semi-open cavity formed by the inverted U-shape forms a dust absorption channel (dust collection passage) with a part of the drainage ditch, the dust absorption channel provides communication between the drainage ditch and an external space, and dust and debris on a road get into and fall into a bottom of the drainage ditch from the external space through the dust absorption channel under driving of an external force.
  • solution 2 the front surface of the cover plug is in the inverted U-shape, and a concave extent is gradually decreased on a cross section of the inverted U-shape from left to right or from front to back.
  • the side surface of the cover plug is in the T-shape, may be symmetrical or asymmetrical, and is matched with a symmetry of the U-shaped drainage ditch.
  • a size of the cover plug head is matched with a size of the drainage ditch, so as to reduce a left-right shaking amplitude of the cover plug, and bear or transmit an impact force from a vehicle on a road to a horizontal component force of the cover plug.
  • FIG. 1 is a top view illustrating a relative position relationship between a road dust collection and drainage canal according to the present invention, and a road and a sand sediment trap.
  • FIG. 2 is a first I-I cross-sectional view of the road dust collection and drainage canal according to the present invention in FIG. 1 , which is already enlarged.
  • FIG. 3 is a diagram of FIG. 2 with a cover plug lifted from a drainage ditch, and a relative relationship among the cover plug, the drainage ditch and a road surface may be distinguished from a side surface.
  • FIG. 4 is a stereoscopic view and an enlarged view of the cover plug in FIG. 3 .
  • FIG. 5 is a second I-I cross-sectional view of the road dust collection and drainage canal according to the present invention in FIG. 1 , which is already enlarged.
  • FIG. 6 is a diagram of FIG. 5 with the cover plug lifted from the drainage ditch, and the relative relationship among the cover plug, the drainage ditch and the road surface may be distinguished from the side surface.
  • the stereoscopic view of the cover plug refers to FIG. 4 .
  • FIG. 7 is a third I-I cross-sectional view of the road dust collection and drainage canal according to the present invention in FIG. 1 , which has been enlarged.
  • FIG. 8 is a diagram of FIG. 7 with the cover plug lifted from the drainage ditch, and the relative relationship among the cover plug, the drainage ditch and the road surface may be distinguished from the side surface.
  • FIG. 9 is a stereoscopic view and an enlarged view of the cover plug in FIG. 8 .
  • Embodiment 1 of the present invention the embodiment is described with reference to FIG. 1 , FIG. 2 , FIG. 3 , and FIG. 4 .
  • a road edge of a road surface 2 is provided with a road dust collection and drainage canal 1 adjacent to a roadside flatstone 5
  • the road dust collection and drainage canal 1 is composed of two major parts including a U-shaped drainage ditch 11 adjacent to the road edge and a cover plug 10 that covers the drainage ditch 11 .
  • the drainage ditch 11 may be built with cement or cast with cement in situ before laying the road surface 2 and the flatstone 5 .
  • the drainage ditch 11 is cast into a U-shape, platforms 11 C on a left wall and a right wall thereof are generally symmetrical or asymmetrical, and a symmetrical mode is used in the embodiment.
  • the platforms 11 C are as high as the road surface or the flatstone 5 .
  • a pressure from the road surface caused by a vehicle running on the road surface enables the flatstone 5 to abut against the left wall of the drainage ditch 11 , as shown in FIG. 2 , and a cover plug head 10 b of the cover plug 10 is embedded in the drainage ditch 11 . Therefore, the pressure is transmitted to the right wall of the drainage ditch 11 , then is borne by a cushion layer 14 and a non-motor vehicle road surface 13 , and finally reaches the soil.
  • a side view of the cover plug 10 is in a T-shape
  • the cover plug head 10 b is a protruding head
  • cover plug shoulders 10 c are protruding shoulders.
  • the cover plug head 10 b is embedded in the drainage ditch 11
  • the cover plug shoulders 10 c are supported on the platforms on the left wall and the right wall of the drainage ditch 11 to bear a weight of the whole cover plug 10 .
  • a front view of the cover plug 10 is in an inverted U-shape, and an body of the inverted U-shape, together with a part of the drainage ditch, forms a dust absorption channel (dust collection passage) 10 a .
  • the dust absorption channel 10 a provides communication between the drainage ditch 11 and an external space. Dust 16 and debris on the road surface 2 get into and fall into a bottom of the drainage ditch 11 from the external space through the dust absorption channel 10 a under driving of an external force such as wind, rainwater and the like.
  • a cross section of the cover plug 10 tends to increase in area from left to right, which on one hand is beneficial for the cover plug 10 to bear a larger downward pressure due to a rolling force of the vehicle, and on the other hand is beneficial for maintaining a stability of the cover plug 10 itself without additional reinforcement due to the increase in the weight of the cover plug 10 itself.
  • the dust absorption channel 10 a has a narrow area, and a minimum size thereof determines a diameter of smallest debris capable of entering the area, thus preventing too many large-sized objects from entering the drainage ditch 11 .
  • the cover plug head 10 b is longer, a larger part of the cover plug head 10 b is embedded in the drainage ditch 11 , and the cover plug 10 is more stable, so that the cover plug 10 is more capable of withstanding an impact of an external force from the vehicle and the like.
  • a height of the cover plug head 10 b is equal to that of the common curbstone, which is 150 mm, and a depth of the drainage ditch 11 is more than 300 mm, a better effect is achieved.
  • a dimension of the cover plug head 10 b may be smaller than that of the drainage ditch 11 by 1 mm.
  • cover plug head 10 b has a symmetrical shape in the embodiment, the cover plug head 10 b may also be asymmetrical, as long as the cover plug head 10 b is matched with a symmetry of the U-shaped drainage ditch 11 .
  • a large amount of dust and debris may accumulate in a drainage channel 11 a contained in the drainage ditch 11 , and get into a sand sediment trap 20 under an impact of rainwater. In the case of too much debris in the trap, a trap cover 20 c may be opened for cleaning.
  • the drainage ditch 11 is cast with concrete in situ, built with stone, or built with brick and concrete.
  • the cover plug 10 is prefabricated with concrete, including resin concrete, and may also be cast with cast iron.
  • the implementation of the present invention can effectively reduce road dust pollution and guarantee a driving safety and a pedestrian safety on the road.
  • Embodiment 2 of the present invention is a diagrammatic representation of Embodiment 2 of the present invention.
  • FIG. 1 The embodiment is described with reference to FIG. 1 , FIG. 5 , FIG. 6 and FIG. 4 .
  • a drainage ditch 11 is cast into a U-shape, and platforms (top sides) 11 C on a left wall and a right wall thereof are not as high as the top surface of a road surface or a flatstone 5 , but are lower than the road surface or the flatstone 5 .
  • Such a structure makes the flatstone 5 directly abut against a front surface of a cover plug 10 , and directly transmits a horizontal force from a vehicle to a cushion layer 14 and a non-motor vehicle road surface 13 , and finally transmits the horizontal force to the soil, thus effectively protecting the drainage ditch 11 from being easily damaged.
  • the cover plug 10 can be further fixed with cement mortar 15 to make up or partially make up for a deficiency that a cover plug head 10 b is embedded in the drainage ditch 11 in a shallower manner.
  • a dust absorption/collection channel (passage) 10 a also has a narrower area, and a minimum size thereof determines a diameter of smallest debris capable of entering the area, thus preventing too many large-sized objects from entering the drainage ditch 11 .
  • the narrower area is much larger, and a size of debris allowed to enter the area is much larger. Therefore, a grid or a mesh may be arranged in the dust absorption channel 10 a to prevent debris or objects of certain sizes from entering the drainage ditch 11 .
  • a perspective view of the cover plug 10 in this embodiment may be as shown in FIG. 4 .
  • Embodiment 3 of the present invention is a diagrammatic representation of Embodiment 3 of the present invention.
  • FIG. 1 The embodiment is described with reference to FIG. 1 , FIG. 7 , FIG. 8 and FIG. 9 .
  • An inner cavity of a cover plug 10 in the embodiment is larger, which may save materials, is light in weight and easy to construct, but has a poor strength and a poor impact and pressure resistance compared with the above two examples.
  • a dust absorption channel 10 a almost has no narrower area to prevent too many large-sized objects from entering a drainage ditch 11 . Therefore, a grid or a mesh may be arranged in the dust absorption channel 10 a to prevent debris or objects of certain sizes from entering the drainage ditch 11 .
  • the cover plug 10 is changed from the U-shape to a circular arch shape in the front view; and a part of the inverted T-shape is cut out in the side view to be concave, so as to save materials, etc.
  • the inventor also believes that the cover plug 10 is essentially a cover plug structure, which is a cover and a plug with respect to the drainage ditch 11 . No matter what shape the drainage ditch is or how the cover plug 10 is changed, the cover plug structure is essential.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sewage (AREA)
  • Road Paving Structures (AREA)
US17/052,745 2018-05-03 2019-04-30 Road gutter having dust collection function Abandoned US20210180267A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201810417044.2A CN110438864A (zh) 2018-05-03 2018-05-03 道路蓄尘排水沟
CN201810417044.2 2018-05-03
PCT/CN2019/085353 WO2019210868A1 (zh) 2018-05-03 2019-04-30 道路蓄尘排水沟

Publications (1)

Publication Number Publication Date
US20210180267A1 true US20210180267A1 (en) 2021-06-17

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ID=68386994

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Application Number Title Priority Date Filing Date
US17/052,745 Abandoned US20210180267A1 (en) 2018-05-03 2019-04-30 Road gutter having dust collection function

Country Status (9)

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US (1) US20210180267A1 (ko)
EP (1) EP3786376B1 (ko)
JP (1) JP2021521367A (ko)
KR (1) KR102544754B1 (ko)
CN (1) CN110438864A (ko)
CA (1) CA3099205A1 (ko)
MX (1) MX2020011574A (ko)
RU (1) RU2764554C1 (ko)
WO (1) WO2019210868A1 (ko)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200494965Y1 (ko) 2021-04-20 2022-02-08 여종승 배수구 덮개용 탈부착이 용이한 거름망 결속장치
CN113175062A (zh) * 2021-04-30 2021-07-27 悉地（北京）国际建筑设计顾问有限公司 一种超深排水检查井及排水系统
CN113308960A (zh) * 2021-05-27 2021-08-27 中国五冶集团有限公司 一种高周转装配式路沿石垫块及其模具、施工方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1049529A (en) * 1962-10-02 1966-11-30 Leslie Richard Williams An improvement in or relating to road drainage
DE2200644A1 (de) * 1972-01-07 1973-07-19 Josef Droege Abfuehrung des niederschlagswassers von strassen neben der fahrbahn
GB2109845B (en) * 1981-11-18 1985-05-22 Althon Drainage of highways
JPH06341121A (ja) * 1993-06-01 1994-12-13 Keihan Concrete Kogyo Kk ガードフエンスの構造及び該ガードフエンスの施工方法
WO1998023821A1 (fr) * 1996-11-29 1998-06-04 Toshizo Nishikawa Bloc de beton pourvu d'une plaque de recouvrement
RU2122065C1 (ru) * 1997-06-04 1998-11-20 Общество с ограниченной ответственностью "ГПР ИНЖСТРОЙ" Водоотводное сооружение
JP4125834B2 (ja) * 1998-12-16 2008-07-30 新興工材株式会社 側溝、側溝の蓋部材、および境界ブロック
JP2004011124A (ja) * 2002-06-03 2004-01-15 West:Kk 路面の排水構造及び排水用コンクリートブロック
KR100647210B1 (ko) * 2003-12-30 2006-11-17 주식회사 대호에코텍 경계석과 일체로 구성된 측구
JP2007092315A (ja) * 2005-09-27 2007-04-12 Retug Inc 側溝ユニット及びそれに使用するグレーチング蓋
KR20090007993U (ko) * 2008-02-01 2009-08-05 김규열 배수용 트렌치 구조
NO334315B1 (no) * 2011-10-12 2014-02-03 Marine Aluminium As Anordning ved helikopterdekk
KR101111185B1 (ko) * 2011-10-20 2012-02-15 주식회사 정원주철 경계겸용 초기 강우 정화 블록
CN203096902U (zh) * 2013-01-11 2013-07-31 米亚建筑材料（昆山）有限公司 结构改进的缝隙式排水沟
KR101267919B1 (ko) * 2013-01-24 2013-05-27 (주)무한에이앤디건축사사무소 건축용 배수로 덮개 구조
CN203684377U (zh) * 2013-12-06 2014-07-02 青岛新世纪预制构件有限公司 预制排水沟
CN103806359A (zh) * 2014-01-28 2014-05-21 北京四方如钢混凝土制品有限公司 一种排水路缘石
JP6327675B2 (ja) * 2015-12-08 2018-05-23 正剛 大嶋 エプロンにアスファルト舗装するプレキャストコンクリート街渠用蓋掛けｕ形側溝
CN207244793U (zh) * 2017-06-24 2018-04-17 湖南文理学院 一种海绵城市排水渠
CN208501422U (zh) * 2018-05-03 2019-02-15 上海墒抢环境技术有限公司 道路蓄尘排水沟

Also Published As

Publication number Publication date
MX2020011574A (es) 2021-01-08
CN110438864A (zh) 2019-11-12
JP2021521367A (ja) 2021-08-26
WO2019210868A1 (zh) 2019-11-07
EP3786376A1 (en) 2021-03-03
KR20210003910A (ko) 2021-01-12
EP3786376B1 (en) 2022-06-01
EP3786376A4 (en) 2021-06-23
RU2764554C1 (ru) 2022-01-18
KR102544754B1 (ko) 2023-06-26
CA3099205A1 (en) 2019-11-07

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