CN113047391A - A drainage device for improving easy ponding road security - Google Patents
A drainage device for improving easy ponding road security Download PDFInfo
- Publication number
- CN113047391A CN113047391A CN202110288447.3A CN202110288447A CN113047391A CN 113047391 A CN113047391 A CN 113047391A CN 202110288447 A CN202110288447 A CN 202110288447A CN 113047391 A CN113047391 A CN 113047391A
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- Prior art keywords
- drainage
- lifting
- fixed mounting
- drainage device
- plate
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
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- 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
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- 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
- E03F5/0404—Gullies for use in roads or pavements with a permanent or temporary filtering device; Filtering devices specially adapted therefor
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- 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
-
- 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
- E03F5/06—Gully gratings
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
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- 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
- E03F5/06—Gully gratings
- E03F2005/068—Gully gratings with means for enhancing water flow
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The invention relates to the technical field of road traffic equipment, and discloses a drainage device for improving the safety of roads easy to accumulate water, which comprises a well cover top plate and an installation extension cylinder, wherein an inclined drainage device is fixedly installed in the well cover top plate, the inclined drainage device comprises an installation cylinder, a connecting ring is fixedly installed on the inner wall of the installation cylinder, rotary connecting pieces are fixedly installed on annular arrays on the inner side of the connecting ring, a drainage screen plate is rotatably installed on the rotary connecting pieces, and the drainage screen plate is used for drainage and accumulated water drainage; according to the drainage device for improving the safety of the road prone to water accumulation, the drainage device is arranged to be drained into the device in a lifting mode, when the road is subjected to water accumulation, the requirement of drainage rate cannot be met by a common drainage mode, at the moment, the drainage device is drained into the device in a lifting mode to descend, so that the drainage net and the lifting drainage plate are not attached to each other any more, and the drainage rate is doubled.
Description
Technical Field
The invention relates to the technical field of road traffic equipment, in particular to a drainage device for improving the safety of roads easy to accumulate water.
Background
Along with the development of human society, all industries can not leave for transportation, the role of road traffic is very important under the current large environment, in the process of road traffic, a drainage system is very important, in some rainy seasons or flood areas, the water quantity exceeds the drainage rate of a drainage well cover, so that accumulated water often appears on roads, the road accumulated water seriously influences the road traffic, when the water is accumulated on the roads, the accumulated water is continuously drained into the drainage system through the drainage well cover, but in the flowing process of the accumulated water flow, hard substances such as stones on the road surface and the periphery of the roads and the like are driven to flow along with the water flow and are finally intercepted on the surface of the drainage well cover, when the quantity of stones is continuously increased and vehicles roll, the drainage well cover groove is easy to be blocked, and the accumulated water enables pedestrians who drive through cannot determine the position of the well cover, when more stones are accumulated on the upper side of the well cover, the pedestrians who drive, the wheels press the convex stones to cause loosening and sliding, and the wheels are easy to overturn and the like.
Disclosure of Invention
The invention aims to provide a drainage device for improving the safety of a road prone to water accumulation, which is used for overcoming the defects in the prior art.
The invention is realized by the following technical scheme.
The invention relates to a drainage device for improving the safety of a road prone to water accumulation, which comprises a well cover top plate and an installation extension cylinder, wherein an inclined drainage device is fixedly installed in the well cover top plate, the inclined drainage device comprises an installation cylinder, a connecting ring is fixedly installed on the inner wall of the installation cylinder, a rotary connecting piece is fixedly installed in an annular array on the inner side of the connecting ring, a drainage screen plate is rotatably installed on the rotary connecting piece and used for drainage and accumulated water drainage, an installation air pressure ring is fixedly installed on the inner side of the installation cylinder, a pneumatic telescopic rod is installed in an annular array on the inner side of the installation air pressure ring, a rotary connecting block is fixedly installed at the tail end of the pneumatic telescopic rod and can be slidably installed on the lower side end face of the drainage screen plate, a lifting chute is fixedly installed on the, the tail end of the lifting telescopic rod is fixedly provided with a lifting slide block, the outer end face of the lifting slide block is fixedly provided with a right supporting rod, the tail end of the right supporting rod is fixedly provided with a lifting drainage device, the lifting drainage device comprises a lifting drainage plate, a discharge circular groove is arranged in the lifting drainage plate and is used for assisting in discharging stone impurities, a receiving expansion cylinder is arranged in the discharge circular groove in a lifting manner and is used for receiving stone drainage and avoiding clamping, a telescopic rubber sleeve is fixedly arranged on the lower side of the receiving expansion cylinder and is used for telescopic action, a gas transmission cavity is arranged in the well cover top plate, an annular pressure plate is arranged in the gas transmission cavity in a lifting manner, a return spring is fixedly arranged on the lower side end face of the annular pressure plate and is used for resetting, and an annular gas bag is fixedly arranged on the lower end face of the, the annular air bag is communicated with an air transmission pipe, the tail end of the air transmission pipe is communicated with the installation air pressure ring, and the air transmission pipe is used for air pressure transmission.
Further technical scheme, bilateral symmetry fixed mounting has two baffle device in the lift drain bar, baffle device is including retrieving the board, retrieve the inboard fixed mounting of board and retrieve the electro-magnet, it has the recovery slider to retrieve in the board slidable mounting, it has supporting spring to retrieve slider medial extremity face fixed mounting, supporting spring is used for the action that resets, it has the recovery baffle to retrieve slider outside end face fixed mounting, it is sealed that the recovery baffle is used for laminating each other the circular slot of draining into.
Further technical scheme, drainage otter board downside terminal surface fixed mounting has the control spout, slidable mounting has the translation slider in the control spout, translation slider fixed mounting has the top force spring, the top force spring is used for relaxing the action that resets, translation slider downside terminal surface fixed mounting has the rotation connecting block.
Further technical scheme, fixed mounting has the spout that resets in the installation extension section of thick bamboo, slidable mounting has the slider that resets in the spout that resets, terminal surface fixed mounting has reset spring under the slider that resets, reset spring is used for supporting and resets, slider fixed mounting resets has a left bracing piece of putting, a left side put bracing piece fixed mounting in lift drain bar downside terminal surface.
According to the further technical scheme, drain holes are formed in the lifting drain board in an annular array mode and are used for daily drainage.
According to the technical scheme, the lower end face of the lifting drainage plate is fixedly provided with a receiving telescopic rod, and the tail end of the receiving telescopic rod is fixedly arranged on the lower end face of the receiving expansion cylinder.
According to the technical scheme, the annular pressing plate is fixedly provided with an annular friction ring on the upper end face, and the annular friction ring is used for improving friction force and avoiding slipping.
The invention has the beneficial effects that:
according to the drainage device for improving the safety of the road prone to water accumulation, due to the arrangement of the lifting drainage device, when the water accumulation condition occurs on the road, the requirement of drainage speed cannot be met by a common drainage mode, at the moment, the lifting drainage device descends, so that the drainage net is not attached to the lifting drainage plate any more, the drainage speed is doubled, and meanwhile, due to the daily attachment arrangement of the lifting drainage plate, the daily drainage requirement is met, and meanwhile, impurities on the surface of the road can be effectively prevented from falling into a drainage system to cause extra burden on the drainage system;
according to the drainage device for improving the safety of the road prone to water accumulation, due to the arrangement of the inclined drainage device, after the lifting drainage device is started to descend, a gap is formed between the drainage net and the lifting drainage plate, the drainage net is inclined downwards in a rotating connection mode of the drainage net, so that water flow can flow in at an accelerated speed under the action of gravity and an inclined plane, the drainage speed is further improved, and due to the inclined drainage mode, impurities such as stones and weeds mixed in the water flow are prevented from staying on the surface of the drainage net and meshes to cause accumulation or blockage, so that the drainage efficiency and the stability are greatly improved, and the running safety of the road prone to water accumulation is ensured;
the drainage device for improving the safety of roads easy to accumulate water is provided with the combination of the inclined drainage device and the lifting drainage device, the fan-shaped drainage net in the inclined drainage device is arranged to form the hollow circular drainage groove, when the drainage net is inclined, the diameter of the circular drainage groove is enlarged, and then block-shaped hard substances are prevented from accumulating on the surface of a well cover and entering a drainage pipeline through the circular drainage groove when flowing along with water flow;
the drainage device for improving the safety of the road prone to water accumulation can avoid potential safety hazards caused by accumulation on the upper side of the well cover and improve the drainage rate by the aid of the support device, and meanwhile, the drainage device is matched with a lifting air bag of the support device driven by a pedestrian through pressure of a front wheel when a vehicle is driven by the pedestrian, so that internal air pressure is quickly pressed into the support pneumatic rod, the support pneumatic rod is extended to drive the drainage net to reset to a horizontal state in the driving process, wheels are supported, weightlessness experience when the vehicle is driven by an inclined angle is avoided, and the influence of the position and the state of the well cover on driving safety of a water accumulation road is thoroughly avoided.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the inclined drain 20 of FIG. 1;
FIG. 3 is an enlarged view of the structure of the elevating drainage device 21 in FIG. 1;
FIG. 4 is an enlarged schematic view of the baffle assembly 37 of FIG. 3;
fig. 5 is an enlarged schematic view of a in fig. 2.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
Combine 1-5 the drainage device for improving easy ponding road security, extend a section of thick bamboo 12 including well lid roof 11, installation, fixed mounting has slope drainage device 20 in the well lid roof 11, slope drainage device 20 is including an installation section of thick bamboo 30, installation section of thick bamboo 30 inner wall fixed mounting has go-between 31, the inboard annular array fixed mounting of go-between 31 has rotation connecting piece 32, it installs drainage otter board 33 to rotate connecting piece 32, drainage otter board 33 is used for drainage and ponding drainage, the inboard fixed mounting of an installation section of thick bamboo 30 has installation pneumatic ring 52, pneumatic telescopic link 51 is installed to the inboard annular array of installation pneumatic ring 52, pneumatic telescopic link 51 end fixed mounting has rotation connecting block 50, but rotation connecting block 50 slidable mounting in drainage otter board 33 downside terminal surface, installation extends a section of thick bamboo 12 inner wall fixed mounting and has lift spout 27, a lifting telescopic rod 28 is fixedly installed in the lifting chute 27, a lifting slider 29 is fixedly installed at the tail end of the lifting telescopic rod 28, a right supporting rod 26 is fixedly installed on the outer end face of the lifting slider 29, a lifting drainage device 21 is fixedly installed at the tail end of the right supporting rod 26, the lifting drainage device 21 comprises a lifting drainage plate 35, a discharge circular groove 38 is formed in the lifting drainage plate 35, the discharge circular groove 38 is used for assisting in discharging stone impurities, a receiving expansion cylinder 41 is installed in the discharge circular groove 38 in a lifting manner, the receiving expansion cylinder 41 is used for receiving stone drainage to avoid clamping, a telescopic rubber sleeve 42 is fixedly installed at the lower side of the receiving expansion cylinder 41, the telescopic rubber sleeve 42 is used for telescopic action, a gas transmission cavity 13 is formed in the well lid top plate 11, an annular pressing plate 15 is installed in the gas transmission cavity 13 in a lifting manner, and a return spring 17 is fixedly installed at the lower end face, the return spring 17 is used for resetting, the annular air bag 14 is fixedly mounted on the lower end face of the annular pressing plate 15, the annular air bag 14 is communicated with an air transmission pipe 53, the tail end of the air transmission pipe 53 is communicated with the mounting air pressure ring 52, and the air transmission pipe 53 is used for air pressure transmission.
Preferably, bilateral symmetry fixed mounting has two retaining device 37 in the lift drain bar 35, retaining device 37 is including retrieving board 40, fixed mounting retrieves electro-magnet 43 in retrieving board 40, slidable mounting retrieves slider 45 in retrieving board 40, retrieve slider 45 medial extremity fixed mounting has supporting spring 46, supporting spring 46 is used for the action that resets, retrieve slider 45 outside terminal surface fixed mounting has the recovery baffle 44, it is sealed to retrieve baffle 44 and be used for laminating each other arrange into circular slot 38.
Preferably, drainage otter board 33 downside terminal surface fixed mounting has control spout 47, slidable mounting has translation slider 48 in the control spout 47, translation slider 48 fixed mounting has top force spring 49, top force spring 49 is used for relaxing the action of reseing, translation slider 48 downside terminal surface fixed mounting has rotation connecting block 50.
Preferably, the installation extends a section of thick bamboo 12 internal fixation and has the spout 23 that resets, sliding mounting has the slider 25 that resets in the spout 23 that resets, terminal surface fixed mounting has reset spring 24 under the slider 25 that resets, reset spring 24 is used for supporting and resets, slider 25 fixed mounting that resets has a left side to put bracing piece 62, a left side put bracing piece 62 fixed mounting in lift drain bar 35 downside terminal surface.
Preferably, the lifting drain board 35 is provided with drain holes 36 in an annular array, and the drain holes 36 are used for daily drainage.
Preferably, a receiving telescopic rod 39 is fixedly installed on the lower end surface of the lifting drain plate 35, and the tail end of the receiving telescopic rod 39 is fixedly installed on the lower end surface of the receiving expansion cylinder 41.
Preferably, an annular friction ring 16 is fixedly mounted on the upper end surface of the annular pressure plate 15, and the annular friction ring 16 is used for increasing friction force to avoid slipping.
The specific use method of the invention is as follows:
when water accumulation occurs on a road, daily accumulated water is small, the accumulated water can be discharged into a drainage system through the drainage holes 36, but when the accumulated water on the road is too large, the accumulated water is continuously discharged into the drainage system through the drainage well cover, but in the flowing process of the accumulated water flow, hard substances such as stones and the like on the road surface and the periphery of the road can be driven to flow along with the water flow and are accumulated on the upper side of the well cover, and the position of the well cover and the state of the upper side of the well cover can not be determined by pedestrians when the pedestrians;
furthermore, when the accumulated water amount is too large, the lifting telescopic rod 28 is started to descend, so that the lifting drainage device 21 descends, the lifting drainage plate 35 and the drainage net plate 33 are not attached tightly, meanwhile, the recovery electromagnet 43 is electrified, the recovery baffle 44 is not discharged into the circular groove 38 in a sealing manner, and further, the drainage efficiency is greatly improved by means of increasing gaps and drainage channels;
meanwhile, when the lifting drainage plate 35 is not attached to the supporting drainage net plate 33 any more, the drainage net plate 33 naturally deflects downwards by a certain angle, so that the guiding force to water flow is increased in the drainage process, the water flowing speed is accelerated, and meanwhile, the internal inclination angle enables hard impurities such as stones washed in water to be discharged through a circular groove formed in the middle of the fan-blade-shaped drainage net plate 33, so that the stones and the like are prevented from being accumulated on the well cover to influence the driving safety;
the receiving expansion rod 39 is further matched to be started to drive the receiving expansion cylinder 41 to rise, so that stones rushing along with water flow are received and guided, and directly enter a drainage system, and the problem that the stones and other substances cannot be discharged due to the fact that the disordered water flow stays and is clamped between the lifting drainage plate 35 and the drainage net plate 33 is solved;
when a pedestrian drives the vehicle, the wheel presses the annular pressure plate 15, so that the air pressure in the annular air bag 14 quickly rushes into the mounting air pressure ring 52, the pneumatic telescopic rod 51 is quickly extended, the translation sliding block 48 slides, the lifting drainage plate 35 which is inclined downwards is supported to return to a horizontal state, and the wheel normally drives over.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a drainage device for improving easy ponding road security, extends a section of thick bamboo, its characterized in that including well lid roof, installation: the inner wall of the well lid top plate is fixedly provided with an inclined drainage device, the inclined drainage device comprises an installation barrel, the inner wall of the installation barrel is fixedly provided with a connecting ring, the inner side of the connecting ring is fixedly provided with a rotary connecting piece, the rotary connecting piece is rotatably provided with a drainage net plate, the inner side of the installation barrel is fixedly provided with an installation air pressure ring, the inner side of the installation air pressure ring is provided with an air telescopic rod in an annular array manner, the tail end of the air telescopic rod is fixedly provided with a rotary connecting block, the rotary connecting block can be slidably arranged on the lower side end surface of the drainage net plate, the inner wall of the installation extension barrel is fixedly provided with a lifting chute, the lifting chute is internally and fixedly provided with a lifting telescopic rod, the tail end of the lifting telescopic rod is fixedly provided, the lifting drainage device comprises a lifting drainage plate, wherein an exhaust circular groove is formed in the lifting drainage plate, a receiving expansion cylinder is arranged in the exhaust circular groove in a lifting mode, a telescopic rubber sleeve is fixedly arranged on the lower side of the receiving expansion cylinder, a gas transmission cavity is formed in a well cover top plate, an annular pressing plate is arranged in the gas transmission cavity in a lifting mode, a return spring is fixedly arranged on the end face of the lower side of the annular pressing plate, an annular air bag is fixedly arranged on the lower end face of the annular pressing plate, the annular air bag is communicated with a gas transmission pipe, and the tail end of the gas transmission pipe is communicated with.
2. A drainage device for improving the safety of water prone roads according to claim 1, wherein: bilateral symmetry fixed mounting has two retaining device in the lift drain bar, retaining device is including retrieving the board, retrieve the inboard fixed mounting of board and retrieve the electro-magnet, it has the recovery slider to retrieve in the board slidable mounting, retrieve slider medial extremity face fixed mounting has supporting spring, retrieve slider outside end face fixed mounting and retrieve the baffle.
3. A drainage device for improving the safety of water prone roads according to claim 1, wherein: the drainage otter board downside terminal surface fixed mounting has the control spout, slidable mounting has the translation slider in the control spout, translation slider fixed mounting has the top force spring, translation slider downside terminal surface fixed mounting have the rotation connecting block.
4. A drainage device for improving the safety of water prone roads according to claim 1, wherein: the utility model discloses a water drainage plate, including an installation extension section of thick bamboo, the installation extension section of thick bamboo is fixed mounting has the spout that resets, slidable mounting has the slider that resets in the spout that resets, terminal surface fixed mounting has reset spring under the slider that resets, slider fixed mounting resets puts the bracing piece on a left side, put on a left side bracing piece fixed mounting in the side terminal surface under the lift drain bar.
5. A drainage device for improving the safety of water prone roads according to claim 1, wherein: and the lifting drainage plate is internally provided with drainage holes in an annular array.
6. A drainage device for improving the safety of water prone roads according to claim 1, wherein: the lower end face of the lifting drainage plate is fixedly provided with a receiving telescopic rod, and the tail end of the receiving telescopic rod is fixedly arranged on the lower end face of the receiving expansion cylinder.
7. A drainage device for improving the safety of water prone roads according to claim 1, wherein: and an annular friction ring is fixedly arranged on the upper end surface of the annular pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110288447.3A CN113047391B (en) | 2021-03-18 | 2021-03-18 | A drainage device for improving easy ponding road security |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110288447.3A CN113047391B (en) | 2021-03-18 | 2021-03-18 | A drainage device for improving easy ponding road security |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113047391A true CN113047391A (en) | 2021-06-29 |
| CN113047391B CN113047391B (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110288447.3A Active CN113047391B (en) | 2021-03-18 | 2021-03-18 | A drainage device for improving easy ponding road security |
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| KR20160068164A (en) * | 2014-12-05 | 2016-06-15 | 주식회사 기산 | Sewerage stink block apparatus |
| KR20160071050A (en) * | 2014-12-11 | 2016-06-21 | 최기재 | The initial rain processing unit of filtering type mounted on Rain Gutters for nonpoint pollution sources removal and odor removal and flood prevention |
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| CN206570843U (en) * | 2016-11-01 | 2017-10-20 | 徐颖清 | It is a kind of to adjust the drain well lid of perforate |
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| CN110499817A (en) * | 2019-10-12 | 2019-11-26 | 象山锐文智能装备有限公司 | A kind of automatic adjustment well lid preventing ponding |
| CN210507742U (en) * | 2019-05-29 | 2020-05-12 | 周其明 | Lifting inspection well cover |
| CN211922929U (en) * | 2020-03-05 | 2020-11-13 | 大连职业技术学院 | Automatic drainage well lid of upset |
| CN212078197U (en) * | 2020-04-29 | 2020-12-04 | 李春闯 | Pipe trench well lid and town road integral structure |
| CN112227493A (en) * | 2020-10-22 | 2021-01-15 | 段云龙 | Municipal drainage is with having city drainage device of stifled mechanism of high efficiency prevention |
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2021
- 2021-03-18 CN CN202110288447.3A patent/CN113047391B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160053457A1 (en) * | 2014-08-22 | 2016-02-25 | Neenah Foundry Company | Controlled Pressure Release Manhole Cover Assembly |
| KR20160068164A (en) * | 2014-12-05 | 2016-06-15 | 주식회사 기산 | Sewerage stink block apparatus |
| KR20160071050A (en) * | 2014-12-11 | 2016-06-21 | 최기재 | The initial rain processing unit of filtering type mounted on Rain Gutters for nonpoint pollution sources removal and odor removal and flood prevention |
| CN205475640U (en) * | 2016-03-24 | 2016-08-17 | 成都陶玛斯卫浴有限责任公司 | Quick drainage device in bathing room |
| CN206570843U (en) * | 2016-11-01 | 2017-10-20 | 徐颖清 | It is a kind of to adjust the drain well lid of perforate |
| CN206681113U (en) * | 2017-04-24 | 2017-11-28 | 浙江中景市政园林建设有限公司 | A kind of urban road drainage system |
| CN210507742U (en) * | 2019-05-29 | 2020-05-12 | 周其明 | Lifting inspection well cover |
| CN110499817A (en) * | 2019-10-12 | 2019-11-26 | 象山锐文智能装备有限公司 | A kind of automatic adjustment well lid preventing ponding |
| CN211922929U (en) * | 2020-03-05 | 2020-11-13 | 大连职业技术学院 | Automatic drainage well lid of upset |
| CN212078197U (en) * | 2020-04-29 | 2020-12-04 | 李春闯 | Pipe trench well lid and town road integral structure |
| CN112227493A (en) * | 2020-10-22 | 2021-01-15 | 段云龙 | Municipal drainage is with having city drainage device of stifled mechanism of high efficiency prevention |
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| Publication number | Publication date |
|---|---|
| CN113047391B (en) | 2022-07-26 |
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