CN111424798A - Urban inspection well sewage-water-backflow-preventing device based on electromagnetic induction principle - Google Patents
Urban inspection well sewage-water-backflow-preventing device based on electromagnetic induction principle Download PDFInfo
- Publication number
- CN111424798A CN111424798A CN202010248391.4A CN202010248391A CN111424798A CN 111424798 A CN111424798 A CN 111424798A CN 202010248391 A CN202010248391 A CN 202010248391A CN 111424798 A CN111424798 A CN 111424798A
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- Prior art keywords
- well
- movably connected
- wall
- magnet
- sliding
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- 238000007689 inspection Methods 0.000 title claims abstract description 38
- 230000005674 electromagnetic induction Effects 0.000 title claims abstract description 17
- 239000010865 sewage Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 239000010949 copper Substances 0.000 claims abstract description 13
- 239000012212 insulator Substances 0.000 claims description 17
- 239000011324 bead Substances 0.000 claims description 9
- 230000003373 anti-fouling effect Effects 0.000 claims description 4
- 230000002265 prevention Effects 0.000 abstract description 6
- RYGMFSIKBFXOCR-BJUDXGSMSA-N copper-63 Chemical compound [63Cu] RYGMFSIKBFXOCR-BJUDXGSMSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 239000010842 industrial wastewater Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/619—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings with reflectors; with means for keeping reflectors clean
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
Landscapes
- 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)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention relates to the technical field of sewage treatment, and discloses an electromagnetic induction principle-based urban inspection well sewage backflow prevention device, which comprises a well wall and a slide rail I, wherein the top of the well wall is movably connected with an inspection well cover, the outside of the well wall is movably connected with a water inlet pipe, the inside of the well wall is movably connected with a sliding assembly, the outside of the sliding assembly is movably connected with an electromagnetic assembly, the inside of the well wall is fixedly connected with a magnet I, the inside of the well wall is movably connected with a baffle plate, and the inside of the baffle plate is fixedly connected with a magnet II; under the interact through wall of a well, inspection shaft lid, inlet tube, slip subassembly, electromagnetic component, negative pole, positive pole, bar copper, can make when sewage takes place to flow backward, can reach the structure operation of preventing flowing backward after triggering, provide prerequisite for preventing the start-up of flowing backward like this to such design only can start when sewage flows backward to being close to the inspection shaft lid, more accords with actual conditions's use like this.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to an anti-sewage backflow device for a city inspection well based on an electromagnetic induction principle.
Background
Among water pollution caused by human production activities, water pollution caused by industry is the most serious. For example, industrial wastewater contains many pollutants and complex components, and is not only difficult to purify in water, but also difficult to treat. Industrial wastewater is the most important cause of water body pollution caused by industrial pollution. It accounts for a large portion of the pollutants discharged by industry. The pollutants contained in the industrial wastewater vary widely according to different types of plants, and even if the same type of plants have different production processes, the quality and the quantity of the pollutants contained in the industrial wastewater are different.
In urban construction, a sewer is an indispensable important component, and a great part of urban sewage flows into the sewer through an inspection well cover, but the inspection well cover is lack of a backflow prevention function, so that the inspection well cover in some urban low-lying areas often has a phenomenon of backflow of sewage, the probability of backflow of sewage of the inspection well is high, the sewage which flows backward is often a mixture of various wastes in cities, and pollutants contained in the sewage are far higher than common domestic sewage, so that a large amount of water on a road surface can be accumulated, the possibility of environment pollution can be accompanied, and great influence can be caused on the life of nearby residents.
Therefore, in order to solve the problems, an anti-sewage backflow device for the urban inspection well based on the electromagnetic induction principle is needed.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an electromagnetic induction principle-based urban inspection well sewage backflow prevention device, which has the advantages of sewage backflow prevention and early warning, and solves the problems that the existing inspection well cover is lack of a backflow prevention function, the inspection well cover in some urban low-lying areas often has a sewage backflow phenomenon, the probability of sewage backflow of the inspection well is high, the sewage backflow phenomenon is often a mixture of various wastes in the city, and pollutants contained in the sewage are far higher than common domestic sewage, so that a large amount of water accumulation on the road surface can be caused, the environment pollution is accompanied, and the living of nearby residents can be greatly influenced.
(II) technical scheme
In order to achieve the purposes of preventing sewage from flowing backwards and warning, the invention provides the following technical scheme: the utility model provides an antifouling water of city inspection shaft device of irritating backward, includes the wall of a well and slide rail one, the top swing joint of the wall of a well has the inspection shaft lid, the outside swing joint of the wall of a well has the inlet tube, the inside swing joint of the wall of a well has sliding assembly, sliding assembly's outside swing joint has electromagnetic assembly, the inside fixedly connected with magnet one of the wall of a well, the inside swing joint of the wall of a well has the baffle, the inside fixedly connected with magnet two of baffle, the outside fixedly connected with slider of baffle, the inside swing joint of slide rail one has spring one, the outside swing joint of spring one has slide rail two, the inside swing joint of slide rail two has spring two, the outside swing joint of.
Preferably, the first sliding rail is fixed inside the well wall, and the water inlet pipe is a T-shaped pipe.
Preferably, the sliding assembly mainly comprises guide rail, movable block and push pedal, and the guide rail is fixed in the inside of the wall of a well, and movable block swing joint is in the inside of guide rail, the inside fixedly connected with push pedal of guide rail, and push pedal swing joint is in the inside of the wall of a well.
Preferably, the electromagnetic component mainly comprises negative pole, positive pole, bar copper, insulating casing, baffle, insulator spindle, spring three, and insulating casing and baffle are all fixed in the inside of the wall of a well, and negative pole and positive pole are all fixed in the inside of insulating casing and the position is corresponding, and the outside fixed connection of push pedal is the one end of insulator spindle, and the other end fixed connection of insulator spindle is the bar copper, and three swing joint of spring are in the outside of insulator spindle, and insulator spindle swing joint is in the inside of baffle.
Preferably, the first magnet and the second magnet have opposite attributes, the first magnet corresponds to the second magnet in position, and the sliding block is movably connected inside the first sliding rail.
Preferably, the surface of the first sliding rail and the surface of the second sliding rail are provided with clamping holes, the outer parts of the second sliding rail and the sliding rod are movably connected with a spring IV, the outer part of the spring IV is movably connected with clamping beads, the specification of the clamping beads is matched with that of the clamping holes, the inner parts of the second sliding rail and the sliding rod are fixedly connected with electromagnets, the specification of the electromagnets is matched with that of the clamping beads outside the sliding rail, and the position of the sliding rod corresponds to that of the sliding block.
Preferably, the copper rod is electrically connected with the electromagnet.
Preferably, the material in the baffle adopts rigid foam, and the outside of baffle is provided with reflection of light strip.
(III) advantageous effects
Compared with the prior art, the invention provides an anti-sewage backflow device for the urban inspection well based on the electromagnetic induction principle, which has the following beneficial effects:
1. this antifouling water of city inspection shaft device of flowing backward based on electromagnetic induction principle, through the wall of a well, the inspection shaft lid, the inlet tube, sliding assembly, electromagnetic component, negative pole, anodal, under the interact between the bar copper, can make when sewage takes place to flow backward, can reach the structure operation of preventing flowing backward after triggering, provide prerequisite for the start-up of preventing flowing backward like this to such design only can start when sewage flows backward to being close to the inspection shaft lid, more accords with actual conditions's use like this.
2. This antifouling water of city inspection shaft flows backward device based on electromagnetic induction principle, through magnet one, baffle, magnet two, slider, spring one, slide rail two, spring two, under the interact between the slide bar, can make this device realize the function that sewage prevented flowing backward to have reflection of light strip early warning function, avoid vehicle and pedestrian to get into the sewage region and cause the damage of personnel and vehicle, just so can avoid the environmental pollution that sewage caused and influence resident's normal life of flowing backward.
Drawings
FIG. 1 is a schematic partial cross-sectional view of the inventive structure;
FIG. 2 is a schematic view of the structure of FIG. 1 at A according to the present invention;
FIG. 3 is a schematic view of the structure of FIG. 1 at B according to the present invention;
FIG. 4 is a schematic view of the structure of FIG. 1 at C according to the present invention.
In the figure: 1. a well wall; 2. a first slide rail; 3. an inspection well cover; 4. a water inlet pipe; 5. a sliding assembly; 6. an electromagnetic assembly; 61. a negative electrode; 62. a positive electrode; 63. a copper bar; 7. a magnet I; 8. a baffle plate; 9. a second magnet; 10. a slider; 11. a first spring; 12. a second slide rail; 13. a second spring; 14. a slide bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an electromagnetic induction principle-based sewage backflow prevention device for an urban inspection well comprises a well wall 1 and a first sliding rail 2, wherein the top of the well wall 1 is movably connected with an inspection well cover 3, the outside of the well wall 1 is movably connected with a water inlet pipe 4, the first sliding rail 2 is fixed inside the well wall 1, and the water inlet pipe 4 is a T-shaped pipe; the inside swing joint of the wall of a well 1 has sliding assembly 5, and sliding assembly 5 mainly comprises guide rail, movable block and push pedal, and the guide rail is fixed in the inside of the wall of a well 1, and movable block swing joint is in the inside of guide rail, the inside fixedly connected with push pedal of guide rail, and push pedal swing joint is in the inside of the wall of a well 1.
The electromagnetic assembly 6 is movably connected to the outside of the sliding assembly 5, the electromagnetic assembly 6 mainly comprises a negative electrode 61, a positive electrode 62, a copper bar 63, an insulating shell, a partition plate, an insulating rod and a spring, the insulating shell and the partition plate are fixed inside the well wall 1, the negative electrode 61 and the positive electrode 62 are fixed inside the insulating shell and correspond to each other in position, the outside of the push plate is fixedly connected with one end of the insulating rod, the other end of the insulating rod is fixedly connected with the copper bar 63, the spring is movably connected to the outside of the insulating rod, and the insulating rod is movably connected to the inside of the partition plate; through the wall of a well 1, inspection shaft lid 3, inlet tube 4, slip subassembly 5, electromagnetic component 6, negative pole 61, anodal 62, under the interact between the bar copper 63, can make when sewage takes place to flow backward, can reach the structure operation of preventing flowing backward after triggering, provide prerequisite for preventing the start-up of flowing backward like this to such design only can start when sewage flows backward to being close to inspection shaft lid 3, more accords with actual conditions's use like this.
A first magnet 7 is fixedly connected inside the well wall 1, a baffle 8 is movably connected inside the well wall 1, the material inside the baffle 8 is hard foam, a reflective strip is arranged outside the baffle 8, a second magnet 9 is fixedly connected inside the baffle 8, a sliding block 10 is fixedly connected outside the baffle 8, the attributes of the first magnet 7 and the second magnet 9 are opposite, the positions of the first magnet 7 and the second magnet 9 are corresponding, and the sliding block 10 is movably connected inside the first sliding rail 2; the inner part of the first sliding rail 2 is movably connected with a first spring 11, and the outer part of the first spring 11 is movably connected with a second sliding rail 12.
A second spring 13 is movably connected inside the second sliding rail 12, and a sliding rod 14 is movably connected outside the second spring 13; clamping holes are formed in the surfaces of the first sliding rail 2 and the second sliding rail 12, a spring IV is movably connected to the outer portions of the second sliding rail 12 and the sliding rod 14, clamping beads are movably connected to the outer portions of the spring IV, the specifications of the clamping beads are matched with those of the clamping holes, electromagnets are fixedly connected to the inner portions of the second sliding rail 12 and the sliding rod 14, the specifications of the electromagnets are matched with those of the clamping beads outside the sliding rail II, the position of the sliding rod 14 corresponds to that of the sliding block 10, and the copper rod 63 is electrically connected with the electromagnets; under the mutual action between magnet 7, baffle 8, magnet two 9, slider 10, spring 11, slide rail two 12, spring two 13, the slide bar 14, can make this device realize the function that sewage prevented flowing backward to have reflection of light strip early warning function, avoid vehicle and pedestrian to get into the sewage region and cause personnel and vehicle's damage, just so can avoid the environmental pollution that sewage caused and influence resident's normal life backward flowing.
When the device starts to be used, the top of the well wall 1 is movably connected with an inspection well cover 3, the outside of the well wall 1 is movably connected with a water inlet pipe 4, the inside of the well wall 1 is movably connected with a sliding assembly 5, the outside of the sliding assembly 5 is movably connected with an electromagnetic assembly 6, a first sliding rail 2 is fixed inside the well wall 1, the water inlet pipe 4 adopts a T-shaped pipe, the sliding assembly 5 mainly comprises a guide rail, a movable block and a push plate, the guide rail is fixed inside the well wall 1, the movable block is movably connected inside the guide rail, the inside of the guide rail is fixedly connected with the push plate, and the push plate is movably connected inside the well; electromagnetic component 6 is mainly by negative pole 61, anodal 62, the bar copper 63, the insulating casing, the baffle, the insulator spindle, three constitutions of spring, the inside at the wall of a well 1 is all fixed to insulating casing and baffle, negative pole 61 and anodal 62 are all fixed in the inside of insulating casing and the position is corresponding, the outside fixed connection one end of insulator spindle of push pedal, the other end fixed connection of insulator spindle is the bar copper 63, three swing joint of spring are in the outside of insulator spindle, insulator spindle swing joint is in the inside of baffle, get into the inside of inlet tube 4 from the top of inlet tube 4 this moment when sewage, and the flow of sewage drives the push pedal motion under the effect of movable block, the push pedal motion drives insulator spindle motion and three contractions of spring, the motion of insulator spindle drives the movement of bar copper 63, the motion of copper bar 63 can cut the magnetic field between anodal 62 and the negative pole 61, thereby make the bar copper 63.
Because the inside of the well wall 1 is fixedly connected with a magnet I7, the inside of the well wall 1 is movably connected with a baffle plate 8, the material inside the baffle plate 8 adopts hard foam, the inside of the baffle plate 8 is fixedly connected with a magnet II 9, the outside of the baffle plate 8 is fixedly connected with a slide block 10, the inside of the slide rail I2 is movably connected with a spring I11, the outside of the spring I11 is movably connected with a slide rail II 12, the inside of the slide rail II 12 is movably connected with a spring II 13, the outside of the spring II 13 is movably connected with a slide rod 14, the attributes of the magnet I7 and the magnet II 9 are opposite, the positions between the magnet I7 and the magnet II 9 are corresponding, the slide block 10 is movably connected with the inside of the slide rail I2, the surfaces of the slide rail I2 and the slide rail II 12 are provided with clamping holes, the outside of the slide rail II 12 and the slide rod 14 are, the inside fixedly connected with electro-magnet of slide rail two 12 and slide bar 14 and the specification of electro-magnet and rather than outside card pearl specification phase-match, the position of slide bar 14 is corresponding with the position of slider 10, bar copper 63 is connected with the electro-magnet electricity, bar copper 63 produces the electric current this moment and can make the electro-magnet lead to the electric current, and then the electro-magnet adsorbs the card pearl and makes its motion, the motion of card pearl drives spring four shrink, slide rail two 12 and slide bar 14 lose the blockking of card pearl this moment, slide rail two 12 and slide bar 14 can take place the motion under the effect of spring one 11 and the effect of spring two 13 restoring force, slide bar 14 motion drives slider 10 motion, slider 10 motion drives baffle 8 motion, baffle 8 motion makes magnet one 7 and magnet two 9 separate, under the effect of linker principle, baffle 8 will be along with the ascending and upward motion of the water level of sewage, reach the effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an antifouling water of city inspection shaft flows backward device based on electromagnetic induction principle, includes wall of a well (1) and slide rail (2), its characterized in that: the inspection well comprises a well wall (1), an inspection well cover (3) is movably connected to the top of the well wall (1), a water inlet pipe (4) is movably connected to the outside of the well wall (1), a sliding assembly (5) is movably connected to the inside of the well wall (1), an electromagnetic assembly (6) is movably connected to the outside of the sliding assembly (5), a first magnet (7) is fixedly connected to the inside of the well wall (1), a baffle (8) is movably connected to the inside of the well wall (1), a second magnet (9) is fixedly connected to the inside of the baffle (8), a sliding block (10) is fixedly connected to the outside of the baffle (8), a first spring (11) is movably connected to the inside of a first slide rail (2), a second slide rail (12) is movably connected to the outside of the first spring (11), a second spring (13) is movably.
2. The device of claim 1 for preventing sewage from flowing back into city inspection well based on electromagnetic induction principle is characterized in that: the first sliding rail (2) is fixed inside the well wall (1), and the water inlet pipe (4) is a T-shaped pipe.
3. The device of claim 1 for preventing sewage from flowing back into city inspection well based on electromagnetic induction principle is characterized in that: sliding assembly (5) mainly comprise guide rail, movable block and push pedal, and the guide rail is fixed in the inside of the wall of a well (1), and movable block swing joint is in the inside of guide rail, the inside fixedly connected with push pedal of guide rail, and push pedal swing joint is in the inside of the wall of a well (1).
4. The device of claim 1 for preventing sewage from flowing back into city inspection well based on electromagnetic induction principle is characterized in that: electromagnetic component (6) mainly comprise negative pole (61), anodal (62), bar copper (63), insulating shell, baffle, insulator spindle, spring three, insulating shell and baffle are all fixed in the inside of the wall of a well (1), and negative pole (61) and anodal (62) are all fixed in the inside and the position of insulating shell corresponding, and the outside fixed connection of push pedal is the one end of insulator spindle, and the other end fixed connection of insulator spindle is bar copper (63), three swing joint of spring are in the outside of insulator spindle, and insulator spindle swing joint is in the inside of baffle.
5. The device of claim 1 for preventing sewage from flowing back into city inspection well based on electromagnetic induction principle is characterized in that: the attributes of the first magnet (7) and the second magnet (9) are opposite, the positions of the first magnet (7) and the second magnet (9) correspond to each other, and the sliding block (10) is movably connected inside the first sliding rail (2).
6. The device of claim 1 for preventing sewage from flowing back into city inspection well based on electromagnetic induction principle is characterized in that: the surface of the first sliding rail (2) and the second sliding rail (12) is provided with a clamping hole, the outer parts of the second sliding rail (12) and the sliding rod (14) are movably connected with a spring IV, the outer parts of the spring IV are movably connected with a clamping bead, the specification of the clamping bead is matched with that of the clamping hole, the specifications of the electromagnet and the electromagnet fixedly connected with the inner parts of the second sliding rail (12) and the sliding rod (14) are matched with that of the clamping bead outside the sliding rail, and the position of the sliding rod (14) corresponds to that of the sliding block (10).
7. The device of claim 1 for preventing sewage from flowing back into city inspection well based on electromagnetic induction principle is characterized in that: the copper bar (63) is electrically connected with the electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010248391.4A CN111424798B (en) | 2020-04-01 | 2020-04-01 | Urban inspection well sewage-water-backflow-preventing device based on electromagnetic induction principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010248391.4A CN111424798B (en) | 2020-04-01 | 2020-04-01 | Urban inspection well sewage-water-backflow-preventing device based on electromagnetic induction principle |
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| Publication Number | Publication Date |
|---|---|
| CN111424798A true CN111424798A (en) | 2020-07-17 |
| CN111424798B CN111424798B (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010248391.4A Active CN111424798B (en) | 2020-04-01 | 2020-04-01 | Urban inspection well sewage-water-backflow-preventing device based on electromagnetic induction principle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081140A (en) * | 2020-09-10 | 2020-12-15 | 王娅 | Inspection shaft drainage device based on electromagnetic induction principle |
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| JP2000154588A (en) * | 1998-11-19 | 2000-06-06 | Ishida Tekko Kk | Grating having freely buriable reflecting member |
| KR20070081728A (en) * | 2006-02-16 | 2007-08-17 | 신승엽 | Manhole cover for sewage backflow and odor blocking |
| CN201649124U (en) * | 2009-12-08 | 2010-11-24 | 上海市政工程设计研究总院 | Flood control baffle structure capable of automatically lifting |
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| CN202248229U (en) * | 2011-07-16 | 2012-05-30 | 党庆风 | Bottom filling-preventing and anti-odor floor drain for sewer |
| CN202401429U (en) * | 2012-01-09 | 2012-08-29 | 刘建华 | Automatic opening and closing flood gate |
| CN110453757A (en) * | 2019-09-05 | 2019-11-15 | 汪兴全 | A kind of drainage device and its drainage method that bilge water resisting flows backward |
| CN110607830A (en) * | 2019-10-16 | 2019-12-24 | 王诚睿 | Flooding-proof emergency device for underground garage |
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2020
- 2020-04-01 CN CN202010248391.4A patent/CN111424798B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000154588A (en) * | 1998-11-19 | 2000-06-06 | Ishida Tekko Kk | Grating having freely buriable reflecting member |
| KR20070081728A (en) * | 2006-02-16 | 2007-08-17 | 신승엽 | Manhole cover for sewage backflow and odor blocking |
| CN201649124U (en) * | 2009-12-08 | 2010-11-24 | 上海市政工程设计研究总院 | Flood control baffle structure capable of automatically lifting |
| CN201746852U (en) * | 2010-09-03 | 2011-02-16 | 上海地空防护设备有限公司 | Locking device of flood-resistant door for lifting. |
| CN202248229U (en) * | 2011-07-16 | 2012-05-30 | 党庆风 | Bottom filling-preventing and anti-odor floor drain for sewer |
| CN202401429U (en) * | 2012-01-09 | 2012-08-29 | 刘建华 | Automatic opening and closing flood gate |
| CN110453757A (en) * | 2019-09-05 | 2019-11-15 | 汪兴全 | A kind of drainage device and its drainage method that bilge water resisting flows backward |
| CN110607830A (en) * | 2019-10-16 | 2019-12-24 | 王诚睿 | Flooding-proof emergency device for underground garage |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112081140A (en) * | 2020-09-10 | 2020-12-15 | 王娅 | Inspection shaft drainage device based on electromagnetic induction principle |
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| Publication number | Publication date |
|---|---|
| CN111424798B (en) | 2021-09-03 |
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