CN103015520B - Rain and sunshine self-controlling device of municipal road rain grate - Google Patents
Rain and sunshine self-controlling device of municipal road rain grate Download PDFInfo
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- CN103015520B CN103015520B CN201310003275.6A CN201310003275A CN103015520B CN 103015520 B CN103015520 B CN 103015520B CN 201310003275 A CN201310003275 A CN 201310003275A CN 103015520 B CN103015520 B CN 103015520B
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Abstract
The invention discloses a rain and sunshine self-controlling device of a municipal road rain grate. The rain and sunshine self-controlling device comprises an oblong rain grate and is characterized in that a push-and-pull gate parallel to the oblong rain grate is arranged on the bottom side of the oblong rain grate; a strip-shaped plate on the push-and-pull gate and a strip-shaped water drain opening of an oblong iron gate are correspondingly arranged; a push-and-pull rod is arranged in the middle of a back side frame of the push-and-pull gate; the outer end of the push-and-pull rod is connected with a turning handle through a pin shaft; a circular hole in the outer end of the turning handle is formed in a shaft end cam of a micro motor in a sleeving manner; and a humidity control switch is connected to a power supply lead of the micro motor. The rain and sunshine self-controlling device of the municipal road rain grate, disclosed by the invention, has the advantages as follows: as the push-and-pull gate which is automatically pushed and pulled according to rain and sunshine is arranged on the bottom side of the oblong rain grate, the strip-shaped water drain opening of the oblong rain grate is automatically closed in sunny days, so that weeds or dust and garbage can be prevented from entering drainage ditches; meanwhile, odors in the drainage ditches are also prevented from spreading outside to pollute the environment; the strip-shaped water drain opening of the oblong rain grate can be automatically opened and the rainwater on the road can automatically flow into the drainage ditches, so that the smoothness of the drainage ditches is kept.
Description
Technical field
The present invention relates to a kind of improvement of town road rain perforaled strainer, specifically a kind of can be at rainy day automatic open, the town road rain perforaled strainer all weathers self-con-tained unit of automatically closing in fine day.Be applicable to urban road.
Background technology
At present, underground in urban road both sides, generally all be provided with gutter, interval, road both sides be provided with central drainage mouth, central drainage mouth is connected with gutter, Sometimes When It Rains, rainwater on rainwater and road in city all flows in gutter from central drainage mouth, in order to prevent that weeds, branch from entering in gutter, block gutter, on central drainage mouth, be also provided with rectangle rain perforaled strainer.At present, in use find, this rectangle rain perforaled strainer has the following disadvantages: because the bar shaped outfall of rectangle rain perforaled strainer is often to open, except wind is by weeds, beyond dust is blown in gutter, while also having sanitationman Sao road, conventionally by the dust cleaning on road, rubbish sweeps in gutter by the bar shaped outfall of rectangle rain perforaled strainer, if the long period there is not water in gutter, dust, rubbish accumulates for a long time in gutter, can form long-pending piece, in the time of water again, can affect the circulation of water, if when raining heavyly, also can make the general upper road surface of water in gutter, when serious, can destroy road surface.In addition, in summer, the stink in gutter also can pass through the outside disperse of bar shaped outfall of rectangle rain perforaled strainer, affects ambient air quality.
Summary of the invention
The object of the present invention is to provide the one can be at rainy day automatic open, the flowing water being beneficial on road flows in gutter by rain perforaled strainer; And can automatically close in fine day, prevent that wind or sanitationman from sweeping the dust on road, rubbish in gutter by the bar shaped outfall of rain perforaled strainer, unobstructed for a long time to ensure gutter, and prevent the town road rain perforaled strainer all weathers self-con-tained unit of the stink contaminated environment in gutter.
In order to reach above object, the technical solution adopted in the present invention is: this town road rain perforaled strainer all weathers self-con-tained unit, comprise rectangle rain perforaled strainer, rectangle rain perforaled strainer is arranged on the central drainage mouth of town road, it is characterized in that: a described rectangle rain perforaled strainer left side, on the diapire of right frame, be equipped with interior " L " shape guide rail of buckleing, be provided with the push-and-pull grid parallel with rectangle rain perforaled strainer in the bottom side of rectangle rain perforaled strainer, a left side for push-and-pull grid, right frame snaps in respectively a rectangle rain perforaled strainer left side, in interior " L " shape guide rail of buckleing on right frame diapire, the corresponding arrangement of bar shaped outfall of the stripe board on push-and-pull grid and rectangle rain perforaled strainer, and perpendicular to " L " shape guide rail, middle part at the rear side frame of push-and-pull grid is provided with pull bar, outer end at pull bar is connected and is turned handle by bearing pin, be provided with circular hole in the outer end of turning handle, turn the circle hole sleeve of handle on the end cam of micromachine, on the power lead of micromachine, connect humidity gauge tap, the diameter of the described circular hole that turns handle outer end equals the width sum of push-and-pull grid strip through-hole and push-and-pull grid stripe board so that push-and-pull grid reach maximum push-and-pull apart from time, the bar shaped outfall that strip through-hole just in time staggers or just in time aligns on rectangle rain perforaled strainer, the described circular-hole internal-wall that turns handle outer end is provided with inner side changeover switch and outside changeover switch, and inner side changeover switch and the line of outside changeover switch and the axis of pull bar are point-blank, in the time of fine day, humidity is less, do not reach the humidity value while raining, the protruding top of the end cam of micromachine goes to the direction towards push-and-pull grid, stirs forward and turns handle, make to turn handle and promote forward pull bar to ultimate range, meanwhile, pull bar just promotes push-and-pull grid and moves forward, and the stripe board shutoff of push-and-pull grid is in the bottom side of the bar shaped outfall of rectangle rain perforaled strainer, disconnect the first contact and second contact of inner side changeover switch, micromachine and end cam stall thereof simultaneously, in the time of rainy day, humidity is in saturation state, reach the humidity value while raining, the protruding top of the end cam of micromachine goes to the direction of push-and-pull grid dorsad, turns handle and pulls pull bar to pull back ultimate range, meanwhile, pull bar just pulls push-and-pull grid to move backward, the bar shaped outfall of the stripe board of push-and-pull grid and rectangle rain perforaled strainer staggers, and meanwhile, disconnects the first contact and second contact of outside changeover switch, realize the conversion of inner side changeover switch and outside changeover switch by the rotation of end cam, the outside of described pull bar is provided with fairlead, described humidity gauge tap, comprises degreased wool topknot and the spring being connected thereof, and the position being connected with spring at degreased wool topknot is provided with conductive contact blade, pulls side to be provided with the power supply contact of rainy day connection at the spring of conductive contact blade, pull side to be provided with the power supply contact that fine day is connected at the degreased wool topknot of conductive contact blade, between the power supply contact of connecting at power supply contact and the fine day of rainy day connection, be provided with the power connection contact that end cam rotates to centre, first contact of described inner side changeover switch is connected with the power supply contact that fine day is connected, and the power supply contact that first contact of outside changeover switch was connected with the rainy day connects, second contact of inner side changeover switch is connected with second contact of outside changeover switch, the power connection contact that end cam rotates to centre is directly connected with the power supply of micromachine, under fine day state, degreased wool topknot shortens, spring extends, the power supply contact that the fine day of conductive contact blade and humidity gauge tap is connected is connected, end cam touches inner side changeover switch, inner side changeover switch is turn-offed, and outside changeover switch conducting, the power supply contact that rainy day connects is in disconnecting stand-by state, rainy day is will arrive time, humidity rises, in the time that conductive contact blade rises to the power connection contact that micromachine turns to centre, the micromachine rotation that switches on power, end cam goes to centre position, make end cam leave the handle that pushes away of inner side changeover switch, under the effect of its spring, inner side changeover switch conducting, because of power connection contact very little, so micromachine stops, when humidity continues to rise, degreased wool topknot continues to extend, under the effect of its spring, conductive contact blade touch the rainy day connect power supply contact and conducting, micromachine rotates, when going to, end cam touches outside when changeover switch, end cam promotes the handle that pushes away of outside changeover switch, make outside changeover switch deenergization, micromachine stall, after the rainy day finishes, humidity reduces, and degreased wool topknot shortens, when conductive contact blade conducting to centre rotate power connection contact time, micromachine rotate, end cam go to leave outside changeover switch, outside changeover switch under the effect of respective springs in conducting state, when humidity continues to reduce, until conductive contact blade touches the power supply contact that the fine day of humidity gauge tap is connected, make it in conducting state, the micromachine rotation that switches on power, end cam goes to again and touches inner side changeover switch, promotes the handle that pushes away of inner side changeover switch, deenergization, micromachine stall.
The present invention also implements by following measure: described push-and-pull grid, comprise rectangle housing, and in rectangle housing, be provided with parallel stripe board and spaced strip through-hole, the width of strip through-hole is identical with the width of stripe board; Meanwhile, the width of stripe board on described rectangle rain perforaled strainer and the width of bar shaped outfall are consistent with the width of stripe board and the width of strip through-hole on push-and-pull grid; Described push-and-pull grid are plastic sliding grid, with weight reduction and prevent corrosion.
Humidity in the described rainy day is decided to be 95%; Humidity in fine day is decided to be and is less than 80%; Collapsing length by degreasing hair is determined.
Beneficial effect of the present invention is: compared with the rectangle rain perforaled strainer using with the central drainage mouth in gutter, current town road both sides, owing to being provided with in the bottom side of rectangle rain perforaled strainer by the push-and-pull grid of fine day or automatic pull of rainy day, realize the bar shaped outfall of rectangle rain perforaled strainer automatically closes in the time of fine day, can prevent that weeds or dust, rubbish from entering in gutter, simultaneously, also prevent that the stink in gutter from outwards distributing, contaminated environment; In the time of the rainy day, can automatically open, the rainwater on road can flow in gutter automatically, thereby has kept the unimpeded of gutter.
Brief description of the drawings
Fig. 1 is structure front-view schematic diagram of the present invention;
Fig. 2 is that structure of the present invention is along A-A cross-sectional schematic;
Fig. 3 be push-and-pull grid of the present invention and connection thereof pull bar, turn handle structure schematic top plan view.
Fig. 4 is circuit connection diagram of the present invention;
Fig. 5 is the circuit connection diagram under fine day state of the present invention;
Fig. 6 is the circuit connection diagram under rainy day state of the present invention.
In figure: 1, rectangle rain perforaled strainer; 1a, bar shaped outfall; 2, " L " shape guide rail of interior button; 3, push-and-pull grid; 3a, stripe board; 3b, strip through-hole; 3c, rectangle housing; 4, micromachine; 5, pull bar; 6, bearing pin; 7, turn handle; 8, circular hole; 9, end cam; 10, humidity gauge tap; 10a, degreased wool topknot; 10b, spring; 10c, conductive contact blade; The power supply contact that 10d, rainy day connect; 10e, the fine day contact that switches on power; The power connection contact that 10f, end cam rotate to centre; 11, inner side changeover switch; First contact of 11a, inner side changeover switch 11; Second contact of 11b, inner side changeover switch 11; 12, outside changeover switch; First contact of 12a, outside changeover switch 12; Second contact of 12b, outside changeover switch 12; 13, fairlead.
Detailed description of the invention
Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 have provided one embodiment of the present of invention.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, the invention will be further described.This town road rain perforaled strainer all weathers self-con-tained unit, comprise rectangle rain perforaled strainer 1, rectangle rain perforaled strainer 1 is arranged on the central drainage mouth of town road, it is characterized in that: described rectangle rain perforaled strainer 1 left side, on the diapire of right frame, be equipped with interior " L " shape guide rail 2 of buckleing, be provided with the push-and-pull grid 3 parallel with rectangle rain perforaled strainer 1 in the bottom side of rectangle rain perforaled strainer 1, a left side for push-and-pull grid 3, right frame snaps in respectively rectangle rain perforaled strainer 1 left side, in interior " L " shape guide rail 2 of buckleing on right frame diapire, push-and-pull grid 3 can slide along 2 push-and-pulls of " L " shape guide rail of interior button, the corresponding arrangement of bar shaped outfall 1a of the stripe board 3a on push-and-pull grid 3 and rectangle rain perforaled strainer 1, be provided with pull bar 5 at the middle part of the rear side frame of push-and-pull grid 3, outer end at pull bar 5 is connected and is turned handle 7 by bearing pin 6, be provided with circular hole 8 in the outer end of turning handle 7, the circular hole 8 that turns handle 7 is enclosed within on the end cam 9 of micromachine 4, on the power lead of micromachine 4, connect humidity gauge tap 10, when at fine day, humidity is less, do not reach the humidity value while raining, the protruding top of the end cam 9 of micromachine 4 goes to the direction towards push-and-pull grid 3, stir forward and turn handle 7, thereby make to turn handle 7 and promote forward pull bar 5 to ultimate range, meanwhile, pull bar 5 just promotes push-and-pull grid 3 and moves forward, make the stripe board 3a shutoff of push-and-pull grid 3 in the bottom side of the bar shaped outfall 1a of rectangle rain perforaled strainer 1, weeds on town road, dust, rubbish just can not enter in gutter by the bar shaped outfall 1a of rectangle rain perforaled strainer 1, sanitationman also just cannot be by the weeds on road, dust, rubbish sweeps in gutter, thereby protect the unimpeded of gutter, when on rainy day, humidity is in saturation state, reach the humidity value while raining, the protruding top of the end cam 9 of micromachine 4 goes to the direction of push-and-pull grid 3 dorsad, turning handle 7 pulls pull bar 5 to pull back ultimate range, meanwhile, pull bar 5 just pulls push-and-pull grid 3 to move backward, the stripe board 3a of push-and-pull grid 3 and the bar shaped outfall 1a of rectangle rain perforaled strainer 1 are staggered, namely the stripe board 3a of push-and-pull grid 3 is in the strip plate bottom side of rectangle rain perforaled strainer 1, thereby the flowing water on town road is flowed in gutter by the bar shaped outfall 1a of rectangle rain perforaled strainer 1 and the strip through-hole 3b of push-and-pull grid 3, the diameter of the described circular hole 8 that turns handle 7 outer ends equals the width sum of push-and-pull grid 3 strip through-hole 3b and push-and-pull grid 3 stripe board 3a, so that push-and-pull grid 3 reach maximum push-and-pull apart from time, the bar shaped outfall 1a that strip through-hole 3b just in time staggers or just in time aligns on rectangle rain perforaled strainer 1, described circular hole 8 inwalls that turn handle 7 outer ends are provided with inner side changeover switch 11 and outside changeover switch 12, and the line of inner side changeover switch 11 and outside changeover switch 12 and the axis of pull bar 5 are point-blank, realize the conversion of inner side changeover switch 11 and outside changeover switch 12 by the rotation of end cam 9, the outside of described pull bar 5 is provided with fairlead 13, described humidity gauge tap 10, the spring 10b that comprises degreased wool topknot 10a and be connected, the position being connected with spring 10b at degreased wool topknot 10a is provided with conductive contact blade 10c, pulls side to be provided with the power supply contact 10d of rainy day connection at the spring 10b of conductive contact blade 10c, pull side to be provided with the power supply contact 10e that fine day is connected at the degreased wool topknot 10a of conductive contact blade 10c, between the power supply contact 10e connecting at power supply contact 10d and the fine day of rainy day connection, be provided with the power connection contact 10f that end cam 9 rotates to centre, first contact 11a of described inner side changeover switch 11 is connected with the power supply contact 10e that fine day is connected, and the power supply contact 10d that first contact 12a of outside changeover switch 12 was connected with the rainy day connects, second contact 11b of inner side changeover switch 11 is connected with second contact 12b of outside changeover switch 12, the power connection contact 10f that end cam 9 rotates to centre is directly connected with the power supply of micromachine 4.Under fine day state, degreased wool topknot 10a shortens, spring 10b extends, the power supply contact 10e that the fine day of conductive contact blade 10c and humidity gauge tap 10 is connected connects, end cam 9 touches inner side changeover switch 11, inner side changeover switch 11 is turn-offed, and 12 conductings of outside changeover switch, the power supply contact 10d that rainy day connects is in disconnecting stand-by state, in the time that the rainy day will arrive, humidity rises, in the time that conductive contact blade 10c rises to the power connection contact 10f that micromachine 4 turns to centre, micromachine 4 rotation that switches on power, end cam 9 goes to centre position, make end cam 9 leave the handle that pushes away of inner side changeover switch 11, under the effect of its spring, inner side changeover switch 11 conductings, because of power connection contact, 10f is very little, so micromachine 4 stops, when humidity continues to rise, degreased wool topknot 10a continues to extend, under the effect of its spring 10b, conductive contact blade 10c touch the rainy day connect power supply contact 10d and conducting, micromachine 4 rotates, when going to, end cam 9 touches outside when changeover switch 12, end cam 9 promotes the handle that pushes away of outside changeover switch 12, make outside changeover switch 12 deenergizations, micromachine 4 stalls, after the rainy day finishes, humidity reduces, degreased wool topknot 10a shortens, when conductive contact blade 10c conducting to centre rotate power connection contact 10f time, micromachine 4 stalls, end cam 9 goes to and leaves outside changeover switch 12, outside changeover switch 12 under the effect of respective springs in conducting state, humidity continues to reduce, until conductive contact blade 10c touches the power supply contact 10e that the fine day of humidity gauge tap 10 is connected, make it in conducting state, micromachine 4 rotation that switches on power, end cam 9 goes to again and touches inner side changeover switch 11, promote the handle that pushes away of inner side changeover switch 11, deenergization, micromachine 4 stalls, complete a circulation.Reciprocal successively.
As improvement of the present invention: described push-and-pull grid 3, comprise rectangle housing 3c, in rectangle housing 3c, be provided with parallel stripe board 3a and spaced strip through-hole 3b, the width of strip through-hole 3b is identical with the width of stripe board 3a; Meanwhile, the width of the stripe board on described rectangle rain perforaled strainer 1 and the width of bar shaped outfall 1a are consistent with the width of the stripe board 3a on push-and-pull grid 3 and the width of strip through-hole 3b; Described push-and-pull grid 3 are plastic sliding grid, with weight reduction and prevent corrosion;
Humidity in the described rainy day is decided to be 95%; Humidity in fine day is decided to be and is less than 80%; Collapsing length by degreasing hair is determined.
Claims (1)
1. town road rain perforaled strainer all weathers self-con-tained unit, comprise rectangle rain perforaled strainer (1), it is characterized in that: described rectangle rain perforaled strainer (1) left side, on the diapire of right frame, be equipped with interior " L " shape guide rail (2) of buckleing, be provided with the push-and-pull grid (3) parallel with rectangle rain perforaled strainer (1) in the bottom side of rectangle rain perforaled strainer (1), a left side for push-and-pull grid (3), right frame snaps in respectively rectangle rain perforaled strainer (1) left side, in interior " L " shape guide rail (2) of buckleing on right frame diapire, the corresponding arrangement of bar shaped outfall (1a) of the stripe board (3a) on push-and-pull grid (3) and rectangle rain perforaled strainer (1), and perpendicular to " L " shape guide rail (2), be provided with pull bar (5) at the middle part of the rear side frame of push-and-pull grid (3), outer end at pull bar (5) is connected and is turned handle (7) by bearing pin (6), be provided with circular hole (8) in the outer end of turning handle (7), the circular hole (8) that turns handle (7) is enclosed within on the end cam (9) of micromachine (4), on the power lead of micromachine (4), connect upper humidity gauge tap (10), the diameter of the described circular hole (8) that turns handle (7) outer end equals the width sum of push-and-pull grid (3) strip through-holes (3b) and push-and-pull grid (3) stripe board (3a), described circular hole (8) inwall that turns handle (7) outer end is provided with inner side changeover switch (11) and outside changeover switch (12), and the line of inner side changeover switch (11) and outside changeover switch (12) and the axis of pull bar (5) are point-blank, in the time of fine day, humidity is less, do not reach the humidity value while raining, the protruding top of the end cam (9) of micromachine (4) goes to the direction towards push-and-pull grid (3), stir forward and turn handle (7), make to turn handle (7) and promote forward pull bar (5) to ultimate range, meanwhile, pull bar (5) just promotes push-and-pull grid (3) and moves forward, stripe board (3a) shutoff of push-and-pull grid (3) is in the bottom side of the bar shaped outfall (1a) of rectangle rain perforaled strainer (1), disconnect the first contact (11a) and the second contact (11b) of inner side changeover switch (11) simultaneously, micromachine (4) and end cam (9) stall thereof, in the time of rainy day, humidity is in saturation state, reach the humidity value while raining, the protruding top of the end cam (9) of micromachine (4) goes to the direction of push-and-pull grid (3) dorsad, turning handle (7) pulls pull bar (5) to pull back ultimate range, meanwhile, pull bar (5) just pulls push-and-pull grid (3) to move backward, the stripe board (3a) of push-and-pull grid (3) staggers with the bar shaped outfall (1a) of rectangle rain perforaled strainer (1), meanwhile, disconnect the first contact (12a) and the second contact (12b) of outside changeover switch (12), described humidity gauge tap (10), the spring (10b) that comprises degreased wool topknot (10a) and be connected, the position being connected with spring (10b) at degreased wool topknot (10a) is provided with conductive contact blade (10c), pulls side to be provided with the power supply contact (10d) of rainy day connection at the spring (10b) of conductive contact blade (10c), pull side to be provided with the power supply contact (10e) that fine day is connected at the degreased wool topknot (10a) of conductive contact blade (10c), between the power supply contact (10e) of connecting at power supply contact (10d) and the fine day of rainy day connection, be provided with the power connection contact (10f) that end cam (9) rotates to centre, first contact (11a) of described inner side changeover switch (11) is connected with the power supply contact (10e) that fine day is connected, and the power supply contact (10d) that first contact (12a) of outside changeover switch (12) was connected with the rainy day connects, second contact (11b) of inner side changeover switch (11) is connected with second contact (12b) of outside changeover switch (12), the power connection contact (10f) that end cam (9) rotates to centre is directly connected with the power supply of micromachine (4), under fine day state, degreased wool topknot (10a) shortens, spring (10b) extends, conductive contact blade (10c) is connected with the power supply contact (10e) that the fine day of humidity gauge tap (10) is connected, end cam (9) touches inner side changeover switch (11), inner side changeover switch (11) is turn-offed, and outside changeover switch (12) conducting, the power supply contact (10d) that rainy day connects is in disconnecting stand-by state, rainy day is will arrive time, humidity rises, in the time that conductive contact blade (10c) rises to the power connection contact (10f) that micromachine (4) turns to centre, micromachine (4) rotation that switches on power, end cam (9) goes to centre position, make end cam (9) leave the handle that pushes away of inner side changeover switch (11), under the effect of its spring, inner side changeover switch (11) conducting, because of power connection contact (10f) very little, so micromachine (4) stops, when humidity continues to rise, degreased wool topknot (10a) continues to extend, under the effect of spring (10b), conductive contact blade (10c) touch the rainy day connect power supply contact (10d) and conducting, micromachine (4) rotates, when going to, end cam (9) touches outside changeover switch when (12), end cam (9) promotes the handle that pushes away of outside changeover switch (12), make outside changeover switch (12) deenergization, micromachine (4) stall, after the rainy day finishes, humidity reduces, degreased wool topknot (10a) shortens, when conductive contact blade (10c) conducting to centre rotate power connection contact (10f) time, micromachine (4) rotates, end cam (9) go to leave outside changeover switch (12), outside changeover switch (12) under the effect of respective springs in conducting state, when humidity continues to reduce, until conductive contact blade (10c) touches the power supply contact (10e) that the fine day of humidity gauge tap (10) is connected, make it in conducting state, micromachine (4) rotation that switches on power, end cam (9) goes to again and touches inner side changeover switch (11), what promote inner side changeover switch (11) pushes away handle, deenergization, micromachine (4) stall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310003275.6A CN103015520B (en) | 2013-01-06 | 2013-01-06 | Rain and sunshine self-controlling device of municipal road rain grate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310003275.6A CN103015520B (en) | 2013-01-06 | 2013-01-06 | Rain and sunshine self-controlling device of municipal road rain grate |
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| CN103015520A CN103015520A (en) | 2013-04-03 |
| CN103015520B true CN103015520B (en) | 2014-07-02 |
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| CN201310003275.6A Expired - Fee Related CN103015520B (en) | 2013-01-06 | 2013-01-06 | Rain and sunshine self-controlling device of municipal road rain grate |
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| CN106088304A (en) * | 2016-08-16 | 2016-11-09 | 安庆钰龙橡塑机械制造有限公司 | A kind of Auto-drainage well lid |
| CN106088303A (en) * | 2016-08-16 | 2016-11-09 | 安庆钰龙橡塑机械制造有限公司 | A kind of intelligence Auto-drainage drain cover |
| CN106968151B (en) * | 2017-05-22 | 2020-04-24 | 无锡市市政设施建设工程有限公司 | Road pavement structure |
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| CN113775021B (en) * | 2021-09-14 | 2023-02-10 | 深圳市隆金达实业有限公司 | A water conservation and energy saving greenery patches irrigation system for sponge city |
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| CN202047467U (en) * | 2011-04-22 | 2011-11-23 | 张毅 | Improved structure for clean-out cover of road surface drainageway |
| CN203066221U (en) * | 2013-01-06 | 2013-07-17 | 山东正顺建设集团有限公司 | Rainy and sunny day automatic control device of municipal service road perforated strainer |
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2013
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| CN87211933U (en) * | 1987-08-22 | 1988-05-25 | 张凤山 | Water collecting well cover with movable dust-proof board |
| KR100545939B1 (en) * | 2005-10-05 | 2006-01-25 | 주식회사 대호이엔씨 | Steel grating structure of drain for road |
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|---|---|
| CN103015520A (en) | 2013-04-03 |
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