CN114108768A - Water circulation system for sponge city - Google Patents

Abstract

The utility model relates to a water circulating system for sponge city, it is including burying underground the ditch, the ditch bottom is provided with first drainage canal, be equipped with in the ditch and ooze row's device, it includes from supreme cement board, infiltration geotechnological cloth, fine sand layer, coarse sand layer, soil horizon, the cobble layer of laying in proper order down to ooze row's device, the cement board upper surface is to the interior second infiltration hole that has been equipped with, the lateral wall intercommunication at ditch top has the second honeycomb duct, the second honeycomb duct is kept away from ditch one end intercommunication and is provided with second drainage canal. This application has the effect that when reducing the collection rainwater, impurity in the rainwater causes the jam probability.

Description

Water circulation system for sponge city

Technical Field

The application relates to the field of urban construction, in particular to a water circulation system for a sponge city.

Background

The sponge city is a newly-built mode which is currently pushed by our country to solve the problem of urban rainfall flood management, and the sponge city is closely linked with ecological cities and low-carbon cities in a progressive theory and supplements each other. The concept and thought of the sponge city have advancement and effectiveness, and the method is favorable for promoting the transformation and development of the urban rainfall flood management mode in China and ensuring the ecological safety of urban water.

The current chinese utility model patent that the publication number of granting is CN206591602U discloses sponge city oozes row structure and sponge city water circulating system, and this sponge city water circulating system oozes row structure, clean stagnant structure and water structure including the sponge city of UNICOM in order. Wherein sponge city seepage drainage structure's infiltration top layer runs through and has arranged many overflow pipes, has buried foraminiferous blind pipe in the permeable layer of drainage underground, and every overflow pipe is located the one end and the foraminiferous blind pipe UNICOM of permeable layer of drainage, and the one end UNICOM of foraminiferous blind pipe is to the net structure of stagnating. When the rainfall is small, rainwater enters the reservoir for storage and permeates into the soil layer; when the rainfall is large and the water level in the reservoir rises above the permeable blind pipe with the hole, the rainwater is output to the stagnation purifying structure through the blind pipe with the hole, is subjected to ecological water purification treatment and is extracted by the water using structure.

With the related art described above, when rainwater is collected, impurities in the rainwater easily enter the overflow pipe along with the rainwater, and thus may easily cause blockage of the pipe.

Disclosure of Invention

In order to improve when collecting the rainwater, the impurity that carries in the rainwater easily leads to the problem of pipeline jam, this application provides a water circulating system for sponge city.

The application provides a water circulating system for sponge city adopts following technical scheme:

the utility model provides a water circulating system for sponge city, is including burying underground the ditch, the ditch bottom is provided with first drainage canal, be equipped with in the ditch and ooze row's device, it includes the cement board, infiltration geotechnological cloth, fine sand layer, coarse sand layer, soil horizon, the cobblestone layer of following supreme laying in proper order to ooze row's device, the cement board upper surface is to interior second infiltration hole of having seted up, first drainage canal lateral wall intercommunication is provided with first honeycomb duct.

Through adopting above-mentioned technical scheme, when the rainfall amount is less, the rainwater flows into the ditch after the ditch through cobble layer, soil horizon, coarse sand layer, fine sand layer, infiltration geotechnological cloth, cement board in proper order and finally flows into first drainage ditch by the second infiltration hole that sets up on the cement board to in flowing into first honeycomb duct by first drainage ditch, thereby caused the risk of pipe blockage easily after having reduced the impurity entering pipeline in the rainwater.

Optionally, the first honeycomb duct is kept away from drainage canal one end intercommunication and is had first sump pit, and subaerial water-collecting tower that is provided with, the fixed intercommunication in sump pit top has the inlet tube, the inlet tube is kept away from the fixed intercommunication in sump pit one end and is had the water pump that sets up in first sump pit top, the inlet tube is connected with the delivery port of water pump, the fixed intercommunication of water inlet of water pump has the drinking-water pipe, the drinking-water pipe is kept away from water pump one end and is linked together with the fixed intercommunication of first sump pit bottom lateral wall.

Through adopting above-mentioned technical scheme, in the filterable rainwater of process drainage in the first drainage canal flowed into first sump pit through first honeycomb duct, rainwater in the first sump pit passes through drinking-water pipe, water pump, inlet tube in proper order under the effect of water pump to finally flow into water collection tower, through collecting water collection tower with the rainwater in, reach the collection to the rainwater.

Optionally, the fixed intercommunication of ditch top lateral wall has the second honeycomb duct, the fixed intercommunication of the one end that the ditch was kept away from to the second honeycomb duct has the second drainage canal buried underground at the bottom, the lateral wall intercommunication of second drainage canal is provided with the third honeycomb duct, has seted up the view pond subaerially downwards, the one end and the view pond top lateral wall intercommunication that the second drainage canal was kept away from to the third honeycomb duct, the fixed intercommunication of lateral wall in view pond has the fourth honeycomb duct, the fixed intercommunication of the one end that the view pond was kept away from to the fourth honeycomb duct has the second sump pit, the intercommunication is provided with the fifth honeycomb duct between second sump pit and the first sump pit, the fifth honeycomb duct is located fourth honeycomb duct below.

Through adopting above-mentioned technical scheme, rainwater among the second drainage canal flows into the view pond through the third honeycomb duct and stews, the rainwater through stewing flows into the second sump pit through the fourth honeycomb duct and stews and stores, the rainwater through stewing in the second sump pit flows into first sump pit through the fifth honeycomb duct and stores, the rainwater of collecting among the second drainage canal flows into first sump pit after the view pond, stewing of second sump pit, the collection to the rainwater has been strengthened, the probability that impurity got into first sump pit has also been reduced simultaneously.

Optionally, second sump pit intercommunication is provided with the sixth honeycomb duct, the sixth honeycomb duct is located between fifth honeycomb duct and the fourth honeycomb duct on vertical direction, second sump pit one end intercommunication is kept away from to the sixth honeycomb duct is provided with the infiltration well, the lateral wall and the diapire of infiltration well all run through and are provided with the third infiltration hole, the fixed intercommunication of infiltration well top lateral wall has the seventh honeycomb duct, the one end and the sewer fixed connection of infiltration well are kept away from to the seventh honeycomb duct.

Through adopting above-mentioned technical scheme, when the liquid level in the second sump pit does not have the sixth honeycomb duct, the rainwater flows into the infiltration well through the sixth honeycomb duct in, the rainwater that sets up on infiltration well lateral wall and diapire will be collected toward underground infiltration in the third infiltration hole, replenish groundwater, ecological environment has been improved, when the liquid level in the infiltration well does not have the seventh honeycomb duct, first sump pit this moment, the second sump pit, rainwater is full in the infiltration well, the setting up of seventh honeycomb duct makes during the rainwater can flow into the sewer, the risk of ponding has been reduced.

Optionally, a backflow resisting assembly for preventing sewage in the sewer from flowing backwards into the seepage well is connected in the seventh flow guiding pipe.

Through adopting above-mentioned technical scheme, the setting up of anti palirrhea subassembly has reduced the possibility that seventh honeycomb duct normal water flows to the infiltration well direction along the sewer to when having reduced the sewer and taking place to block up, during the water advection in the sewer enters the infiltration well, causes the possibility of pollution to the rainwater in the infiltration well.

Optionally, the anti-reverse-flow component comprises a first connecting block arranged on the seventh flow guide pipe, a first cavity is arranged inside the first connecting block, a first baffle fixedly connected with the first connecting block is arranged at the bottom of the first cavity, a second baffle is fixedly connected with the upper surface of the first baffle, a rubber plate is arranged between the second baffle and the inner wall of the first connecting block, a first support rod is fixedly connected with the upper surface of the rubber plate, a spring is sleeved outside the first support rod, a first through hole for the sliding insertion of the first support rod is arranged at the top of the first connecting block, a connecting rod is fixedly connected with one end of the first support rod, which is far away from the first connecting block, a second connecting block is arranged in the middle of the fifth flow guide pipe, a second cavity is arranged inside the second connecting block, a vertically arranged insertion groove is arranged in the second cavity, and a third baffle is slidably inserted in the insertion groove, the upper surface of the third baffle is fixedly connected with the connecting rod.

Through adopting above-mentioned technical scheme, when great and rainwater of external rainwater flowed into seventh honeycomb duct, the rubber slab upward movement under the drive of rainwater, when the rubber slab breaks away from the butt with second baffle lateral wall, the rainwater flowed through from the rubber slab right side and gets into first cavity right side region, and flow into the sewer through seventh honeycomb duct, when liquid in the sewer was too much to rubber slab top production pressure, the rubber slab under the pressure effect with the third baffle butt, the probability of the liquid entering infiltration well in the sewer has been reduced. The first supporting rod located above the rubber plate moves upwards under the driving of the rubber plate, the first supporting rod drives the connecting rod to move upwards, the connecting rod drives the third baffle to move upwards, when the rubber plate rises to be flowed through by rainwater, the first water collecting well is fully collected, the third baffle rises to be capable of separating the fifth flow guide pipe, the probability that rainwater in the second water collecting well enters the first water collecting well is reduced, and therefore the probability that impurities enter the first water collecting well is reduced.

Optionally, the bottom intercommunication of water collecting tower is provided with drainage pipe, the fixed intercommunication of the one end that water collecting tower was kept away from to drainage pipe has first water supply pipe, first water supply pipe is close to water collecting tower one end and is provided with first valve, is provided with the greenbelt subaerially, first water supply pipe is kept away from the fixed intercommunication of water collecting tower one end and is had the watering pipeline of setting in the greenbelt top, and watering pipeline bottom fixedly connected with second bracing piece waters the pipeline bottom, second bracing piece bottom and ground fixed connection water pipeline bottom intercommunication and be provided with the watering shower nozzle.

Through adopting above-mentioned technical scheme, when needs irrigate the greenbelt, at first open first valve, the rainwater of collecting in the water-collecting tower gets into the watering pipeline through first water pipe to irrigate by the watering shower nozzle on the watering pipeline, realized recycling to the rainwater of collecting.

Optionally, drainage pipe keeps away from water collection tower one end and still fixes the intercommunication and has the second water supply pipe, the second water supply pipe is close to water collection tower one end and is provided with the second valve, the second water supply pipe keeps away from that drainage pipe one end is fixed the intercommunication has the washing pipeline of setting in second drainage canal top, and the fixed intercommunication in washing pipeline bottom has the washing pipeline, and the washing pipeline stretches into the inside of second drainage canal and with second drainage canal top butt.

Through adopting above-mentioned technical scheme, when needs wash second drainage channel, at first open the second valve, the rainwater of collecting in the water collection tower passes through the second water supply pipe and gets into the washing pipeline to wash second drainage channel inside via the washing pipeline, realized the reuse to the rainwater of collecting, reduced the inside probability that takes place to block up of second drainage channel.

Optionally, an annular groove is formed in the side wall of the first through hole, the annular groove is provided with a sealing ring abutted against the first connecting block, and a second through hole for the first supporting rod to pass through is formed in the middle of the sealing ring.

Through adopting above-mentioned technical scheme, when first bracing piece passed first connecting block and removed, the sealing washer increased the inside leakproofness of first connecting block, reduced the rainwater of collecting along the possibility of first through-hole leakage, reduced the inside probability of outside impurity entering first connecting block.

Optionally, one end of the second flow guide pipe close to the water channel is provided with a filter screen fixedly connected with the inner wall of the second flow guide pipe.

Through adopting above-mentioned technical scheme, great at the rainwater volume, and when the rainwater in the ditch does not have the second honeycomb duct, in the rainwater flowed into the second honeycomb duct, the impurity of filter screen in to the rainwater was filtered this moment, has reduced the probability that the impurity in the rainwater got into in the second honeycomb duct.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the rainwater amount is small, the rainwater flows into the channel, then sequentially flows into the first drainage channel through the cobble layer, the soil layer, the coarse sand layer, the fine sand layer, the water seepage geotextile and the cement board, finally flows into the first drainage channel through the second water seepage holes formed in the cement board, and flows into the first drainage pipe through the first drainage channel, so that the risk of pipeline blockage caused by the fact that impurities in the rainwater enter the pipeline is reduced;

2. when great and rainwater of external rainwater flowed into seventh honeycomb duct, the rubber slab upward movement under the drive of rainwater, when the rubber slab broke away from the butt with second baffle lateral wall, the rainwater was regional through getting into first cavity right side from the rubber slab right side to flow into the sewer through seventh honeycomb duct, when liquid in the sewer was too much when producing pressure to the rubber slab top, the rubber slab was under the pressure effect with third baffle butt, had reduced the probability that liquid in the sewer got into the infiltration well. The first supporting rod located above the rubber plate moves upwards under the driving of the rubber plate, the first supporting rod drives the connecting rod to move upwards, the connecting rod drives the third baffle to move upwards, when the rubber plate rises to a position where rainwater can flow through, the third baffle rises to a position where the fifth flow guide pipe can be separated, the probability that rainwater in the second water collecting well enters the first water collecting well is reduced, and therefore the possibility that impurities enter the first water collecting well is reduced.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a drainage structure embodied in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a first water collecting well, a water collecting tower, a second water collecting well and a water seepage well in an embodiment of the present application;

FIG. 4 is a schematic structural diagram of the bottom of the landscape pool embodied in the embodiment of the present application;

FIG. 5 is a schematic structural diagram of a first connecting block embodied in the embodiment of the present application;

fig. 6 is a schematic structural diagram of a second connection block in the embodiment of the present application.

Description of reference numerals: 1. a ditch; 11. a cover plate; 12. a first water seepage hole; 13. a first drainage channel; 14. a seepage and drainage device; 141. a cement board; 142. a second water seepage hole; 143. water seepage geotextile; 144. a fine sand layer; 145. a coarse sand layer; 146. a soil layer; 147. a cobble layer; 15. a first draft tube; 16. a second draft tube; 161. a filter screen; 17. a second drain channel; 171. a third draft tube; 2. a first sump well; 21. a water pump; 22. a water pumping pipe; 23. a housing; 24. a third through hole; 25. a pull ring; 3. a water collecting tower; 31. a water inlet pipe; 32. a water discharge pipeline; 33. a first water supply pipe; 331. a first valve; 332. irrigating a pipeline; 333. a second support bar; 334. watering the spray head; 34. a second water supply pipe; 341. a second valve; 342. flushing the pipeline; 343. flushing the pipeline; 4. a landscape pool; 41. a fourth draft tube; 5. a second sump well; 51. a fifth draft tube; 52. a second connecting block; 521. a second cavity; 53. inserting grooves; 531. a third baffle plate; 6. a water seepage well; 61. a sixth draft tube; 62. a seventh draft tube; 63. an anti-reflux component; 631. a first connection block; 6311. a first through hole; 6312. an annular groove; 6313. a seal ring; 6314. a second through hole; 632. a first cavity; 633. a first baffle plate; 634. a second baffle; 635. a rubber plate; 6351. a spring; 636. a first support bar; 637. a connecting rod; 64. a sewer; 65. a third water seepage hole; 7. a green belt.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a water circulating system for sponge city. Referring to fig. 1, a water circulation system for a sponge city includes a canal 1 buried underground, and the canal 1 is formed in a square shape and is connected end to end. Referring to fig. 1 and 2, a cover plate 11 covering the channel 1 is arranged at the top of the channel 1, a first water seepage hole 12 for rainwater to pass through is arranged on the upper surface of the cover plate 11 inwards, a first drainage channel 13 is arranged at the bottom of the channel 1, and the first drainage channel 13 is square and is arranged end to end. An infiltration and drainage device 14 is arranged above the first drainage channel 13.

The rainwater is at first through the first hole 12 entering ditch 1 that oozes on the apron 11, then oozes to arrange through oozing drainage device 14 again and filters the back and flow into in the middle of the first ditch 13, oozes drainage device 14 and oozes to arrange the filtration to the rainwater when the rainwater passes through, has reduced the probability that the impurity that carries gets into in the rainwater among the first ditch 13 to reduce the probability that first ditch 13 takes place to block up.

Referring to fig. 2, the seepage and drainage device 14 includes a cement board 141 abutting against the bottom of the ditch 1, a plurality of second seepage holes 142 for rainwater to pass through are arranged in the upper surface of the cement board 141 in an inward penetrating manner, a seepage geotextile 143 abutting against the cement board 141 is laid on the top of the cement board 141, a fine sand layer 144 is laid above the seepage geotextile 143, a coarse sand layer 145 is laid above the fine sand layer 144, a soil layer 146 is laid above the coarse sand layer 145, and a cobble layer 147 is laid above the soil layer 146.

When the seepage and drainage device 14 conducts seepage and filtration on rainwater, the rainwater sequentially passes through the pebble layer 147, the soil layer 146, the coarse sand layer 145, the fine sand layer 144 and the water-permeable geotextile 143 of the seepage and drainage device 14, and finally flows into the first drainage channel 13 through the second seepage holes 142 on the cement board 141. Ooze row device 14 through setting up the filter layer that the filter effect strengthens gradually, carries out the filtration of strengthening step by step to the rainwater of process, and the impurity that carries in the rainwater is stayed the upper strata that oozes row device 14, when the impurity production in ditch 1 is accumulated, moves apron 11 from ditch 1 top, clears up the impurity in the ditch 1.

Referring to fig. 1 and 2, a first draft tube 15 is arranged at the bottom of the first drainage channel 13 in a communicating manner, a first sump 2 is buried at the bottom of the first drainage channel, and one end of the first draft tube 15, which is far away from the first drainage channel 13, is communicated with the side wall of the first sump 2. Rainwater collected through the seepage drainage in the first drainage channel 13 flows into the first water collecting well 2 through the first flow guiding pipe 15, and the rainwater filtered through the seepage drainage device 14 is stored by the first water collecting well 2.

Referring to fig. 1 and 3, a water pump 21 is arranged above the first water collecting well 2, a water pumping end of the water pump 21 is connected with a water pumping pipe 22, and one end of the water pumping pipe 22, which is far away from the water pump 21, is communicated with the side wall of the bottom of the first water collecting well 2. Be provided with water collection tower 3 on the ground, the fixed intercommunication in top of water collection tower 3 has inlet tube 31, and the one end that water collection tower 3 was kept away from to inlet tube 31 is fixed with the delivery port of water pump 21 and is communicated. After rainwater flows into the first water collecting well 2, the water pump 21 pumps rainwater into the water collecting tower 3 from the first water collecting well 2, and the water collecting tower 3 has a storage effect on the collected rainwater.

Referring to fig. 1 and 2, a second guide pipe 16 is provided to the side wall of the canal 1 in communication therewith, a filter screen 161 is provided at an end of the second guide pipe 16 close to the canal 1, and the filter screen 161 abuts against the inner wall of the second guide pipe 16. One end of the second flow guide pipe 16, which is far away from the water channel 1, is communicated with a second water drainage channel 17, and the second water drainage channel 17 is arranged in a square shape in an end-to-end manner.

Referring to fig. 4, the third guide pipe 171 is provided to communicate with the side wall of the second drain channel 17. The landscape pool 4 is arranged on the ground, and one end of the third flow guide pipe 171, which is far away from the second drainage channel 17, is communicated with the side wall of the landscape pool 4. When the rainwater volume is more abundant, the infiltration and drainage efficiency of the infiltration and drainage device 14 to the rainwater is slower, when ponding is produced in the ditch 1 and the second honeycomb duct 16 is not passed through, the rainwater flows into the second drainage channel 17 along the second honeycomb duct 16, the rainwater in the second drainage channel 17 flows into the landscape pool 4 through the third honeycomb duct 171, the rainwater stands still in the landscape pool 4, a part of impurities carried in the rainwater subsides in the bottom of the landscape pool 4, and when the impurities in the landscape pool 4 are too much, the bottom of the landscape pool 4 is directly cleaned and fished.

Referring to fig. 3 and 4, a fourth draft tube 41 is fixedly communicated with the side wall of the landscape pool 4, a second water collecting well 5 is buried underground, and one end of the fourth draft tube 41, which is far away from the landscape pool 4, is communicated with the side wall of the second water collecting well 5. And a fifth draft tube 51 is arranged on the side wall of the second water collecting well 5 and the side wall of the first water collecting well 2 in a communicating manner, and the fifth draft tube 51 is positioned below the fourth draft tube 41. The rainwater is firstly kept still in the landscape pool 4, the rainwater collected at the upper part of the landscape pool 4 flows into the second water collecting well 5 along the fourth flow guiding pipe 41, the second water collecting well 5 keeps still and stores the inflow rainwater, and when the rainwater which is kept still in the second water collecting well 5 does not pass through the fifth flow guiding pipe 51, the rainwater flows into the first water collecting well 2 through the fifth flow guiding pipe 51 to be stored.

Referring to fig. 3, a water seepage well 6 is further buried underground, a sixth guide pipe 61 is arranged at the top of the water seepage well 6 and communicated with the top of the second water collecting well 5, the sixth guide pipe 61 is positioned above the fifth guide pipe 51, the sixth guide pipe 61 is positioned below the fourth guide pipe 41, and a plurality of third water seepage holes 65 are formed in the side wall of the water seepage well 6. When the liquid level in the second water collecting well 5 exceeds the sixth guide pipe 61, rainwater flows into the water seepage well 6 through the sixth guide pipe, and the collected rainwater is infiltrated towards the ground through the third seepage holes 65 arranged on the side wall of the water seepage well 6, so that the groundwater is supplemented, and the ecological environment is improved.

Referring to fig. 3, a seventh drainage pipe 62 is fixedly communicated with the side wall of the water seepage well 6, a sewer 64 is fixedly communicated with one end of the seventh drainage pipe 62 far away from the water seepage well 6, when the rainwater level in the water seepage well 6 is over the seventh drainage pipe 62, the first water collecting well 2 and the second water collecting well 5 are fully collected, and the rainwater in the water seepage well 6 is drained into the sewer 64 through the seventh drainage pipe 62.

Referring to fig. 3 and 5, the seventh guide pipe 62 is provided with a backflow prevention assembly 63 at the middle portion thereof, and the backflow prevention assembly 63 reduces the possibility of water in the sewer pipe 64 entering the water-seepage well 6, thereby reducing the possibility of water backflow in the sewer pipe 64 when the sewer pipe 64 is blocked.

Referring to fig. 3 and 5, the anti-reverse flow assembly 63 includes a first connection block 631 communicating with the seventh flow guide pipe 62, and the first connection block 631 is internally provided with a first cavity 632. The bottom of the first cavity 632 is provided with a first baffle 633 fixedly connected with the first connecting block 631, the upper surface of the first baffle 633 is fixedly connected with a second baffle 634, and a rubber plate 635 is arranged between the second baffle 634 and the inner wall of the first connecting block 631. Rubber sheet 635 upper surface fixed connection has first bracing piece 636, and first bracing piece 636 overcoat is equipped with spring 6351, and spring 6351 one end and rubber sheet 635 upper surface fixed connection, spring 6351 keep away from rubber sheet 635 one end and first connecting block 631 top inner wall fixed connection. A first through hole 6311 for the first support rod 636 to pass through is formed inwardly on the upper surface of the first connecting block 631. An annular groove 6312 arranged in an annular shape is formed in the side wall of the first through hole 6311, a sealing ring 6313 abutted to the first connecting block 631 is arranged in the annular groove 6312, a second through hole 6314 for the first support rod 636 to pass through is arranged in the middle of the sealing ring 6313, and when the first support rod 636 is laid, a space for the first support rod 636 to move is reserved above the first support rod 636.

When the rainfall is more abundant, when the first water collecting well 2, the second water collecting well 5 and the water seepage well 6 are full of rainwater, the rainwater starts to flow into the water seepage well 6, when the liquid level in the water seepage well 6 exceeds the seventh diversion pipe 62, the liquid in the water seepage well 6 starts to flow into the seventh diversion pipe 62, the rainwater in the seventh diversion pipe 62 flows into the first connecting block 631, and the rainwater below the rubber plate 635 generates thrust on the rubber plate. When rainwater continues to flow into the weep well 6 and the liquid level in the weep well 6 exceeds the seventh flow guide pipe 62 to a certain extent, the rubber plate 635 is pushed by water flow to move upwards and drive the spring 6351 to compress, when the rubber plate 635 is separated from the abutting state with the second baffle 634, the rainwater enters the right part of the first cavity 632 from the bottom of the rubber plate 635 and enters the connection part of the seventh flow guide pipe 62 and the sewer 64 through the right part of the first cavity 632, so that the redundant rainwater enters the sewer 64, and the water storage pressure in the first water collection well 2, the second water collection well 5 and the weep well 6 is relieved. When there is no rainwater, the liquid level in the weep well 6 slowly drops, and at this time, the rubber plate 635 moves downward under the elastic force of the spring 6351, and when the rubber plate 635 abuts against the first baffle 633, the rubber plate 635 blocks the seventh draft tube 62, thereby blocking the backflow of the sewage in the sewer 64.

Referring to fig. 5 and 6, a connection rod 637 is fixedly connected to an end of the first support rod 636 away from the first connection block 631, and when the connection rod 637 is laid, a space for the connection rod 637 to move is reserved above the connection rod 637. The middle part of the fifth guide pipe 51 is connected with a second connecting block 52, a second die cavity 521 is arranged inside the second connecting block 52, and the fifth guide pipe 51 is communicated with the second die cavity 521. A vertically arranged insertion groove 53 is arranged in the second connecting block 52, a third baffle 531 is arranged in the insertion groove 53, the third baffle 531 is inserted into the insertion groove 53 in a sliding manner, and the upper surface of the third baffle 531 is fixedly connected with the connecting rod 637.

When the third baffle 531 is completely disposed inside the inserting groove 53, the fifth draft tube 51 is connected back and forth, and the rubber plate 635 abuts against the first baffle 633 and serves to block the seventh draft tube 62. When the rainwater is abundant, when the landscape pool 4, the first water collecting well 2, the second water collecting well 5 and the water seepage well 6 are full of water, the standing effect of the landscape pool 4 and the second water collecting well 5 on the water can be influenced, and impurities carried in the rainwater can easily enter the second water collecting well 5. When the liquid level in the weep well 6 exceeds the seventh draft tube 62 and the rubber plate 635 moves upward under the driving of the water flow, the rubber plate 635 drives the support rod, the connecting rod 637 and the third baffle 531 to move upward together, and when the rubber plate 635 is separated from the abutment with the second baffle 634, the third baffle 531 rises to the position completely separating the fifth draft tube 51. Therefore, the fifth guide pipe 51 is completely separated while the seventh guide pipe 62 is conducted, and the probability that impurities carried in rainwater flow into the first water collecting well 2 through the fifth guide pipe 51 after entering the second water collecting well 5 when the rainwater is abundant is further reduced.

Referring to fig. 3 and 4, the ground is further provided with an annular green belt 7, the bottom of the water collecting tower 3 is fixedly communicated with a drainage pipeline 32, one end of the drainage pipeline 32, which is far away from the water collecting tower 3, is fixedly communicated with a first water supply pipe 33, one end of the first water supply pipe 33, which is close to the water collecting tower 3, is provided with a first valve 331, and one end of the first water supply pipe 33, which is far away from the drainage pipeline 32, is fixedly communicated with a watering pipeline 332. The irrigation pipeline 332 is arranged above the green belt 7 and is annularly arranged, the bottom of the irrigation pipeline 332 is fixedly connected with a plurality of second support rods 333, the bottom of the second support rods 333 is fixedly connected with the ground, and the bottom of the irrigation pipeline 332 is also fixedly communicated with a plurality of irrigation nozzles 334.

When the green belt 7 needs to be irrigated, the first valve 331 is opened, rainwater collected in the water collection tower 3 flows through the drainage pipeline 32, the first water supply pipe 33 and the irrigation pipeline 332 in sequence under the action of pressure, and is finally sprayed out by the irrigation nozzle 334, irrigation of the green belt 7 is completed, and recycling of the rainwater is achieved.

Referring to fig. 3 and 4, one end of the drainage pipe 32, which is far away from the water collecting tower 3, is further fixedly communicated with a second water supply pipe 34, one end of the second water supply pipe 34, which is close to the water collecting tower 3, is provided with a second valve 341, one end of the second water supply pipe 34, which is far away from the drainage pipe 32, is communicated with a flushing pipeline 342, the flushing pipeline 342 is arranged above the second drainage channel 17 and is annularly arranged, the bottom of the flushing pipeline 342 is communicated with a plurality of flushing pipelines 343, and the flushing pipelines 343 extend into the second drainage channel 17 and abut against the top of the second drainage channel 17.

When the interior of the second drainage channel 17 needs to be flushed, the second valve 341 is opened, rainwater collected in the water collecting tower 3 sequentially flows through the drainage pipeline 32, the second water supply pipe 34 and the flushing pipeline 342 under the action of pressure and is finally sprayed out from the flushing pipeline 343, the flushed rainwater carries impurities to enter the landscape pool 4 through the third flow guide pipe 171 for standing, the flushing effect on the second drainage channel 17 is achieved, and the probability of blockage of the second drainage channel 17 is reduced.

The implementation principle of the water circulation system for the sponge city in the embodiment of the application is as follows:

when the amount of rainwater is small, after entering the canal 1 through the first seepage holes 12 on the cover plate 11, the rainwater firstly passes through the seepage and drainage device 14, then enters the first drainage channel 13, and enters the water collecting well through the first diversion pipe 15 communicated with the side wall of the first drainage channel 13, and when the amount of rainwater is large, the rainwater on the top of the canal 1 flows into the second drainage channel 17 through the second diversion pipe 16, flows into the landscape pool 4 through the third diversion pipe 171, and finally flows into the second water collecting well 5 through the fourth diversion pipe 41.

When the rainfall is abundant, the rainwater begins to flow into first connecting block 631 from seventh honeycomb duct 62 by infiltration well 6, rubber sheet 635 upwards moves under the effect of rivers, thereby when rubber sheet 635 is promoted by rivers and breaks away from the butt with first baffle 633, the rainwater is through getting into first cavity right part from rubber sheet 635 bottom, and get into seventh honeycomb duct 62 and sewer 64 connected portion via first cavity right part, when rubber sheet 635 drove first bracing piece 636 upward movement, first bracing piece 636 drove connecting rod 637 upward movement, connecting rod 637 drove third baffle 531 upward movement, third baffle 531 cuts off fifth honeycomb duct 51.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A water circulating system for sponge city which characterized in that: including burying underground ditch (1), ditch (1) bottom is provided with first drainage ditch (13), be equipped with in ditch (1) and ooze row device (14), it includes from supreme cement board (141), infiltration geotechnological cloth (143), fine sand layer (144), coarse sand layer (145), soil horizon (146), cobblestone layer (147) of laying in proper order down to ooze row device (14), cement board (141) upper surface inwards is equipped with second infiltration hole (142), first drainage ditch (13) lateral wall intercommunication is provided with first honeycomb duct (15).

2. A water circulation system for sponge cities according to claim 1, characterized in that: first honeycomb duct (15) are kept away from drainage canal (1) one end intercommunication and are had first sump pit (2), are provided with water-collecting tower (3) subaerially, the fixed intercommunication in water-collecting tower (3) top has inlet tube (31), the fixed intercommunication in water-collecting tower (3) one end is kept away from in inlet tube (31) has water pump (21) of setting in first sump pit (2) top, inlet tube (31) are connected with the delivery port of water pump (21), the fixed intercommunication in water inlet of water pump (21) has drinking-water pipe (22), water pump (21) one end and the fixed intercommunication of first sump pit (2) bottom lateral wall are kept away from in drinking-water pipe (22).

3. A water circulation system for sponge cities according to claim 2, characterized in that: a second guide pipe (16) is fixedly communicated with the side wall of the top of the water channel (1), one end of the second guide pipe (16) far away from the water channel (1) is fixedly communicated with a second drainage channel (17) buried under the bottom, the side wall of the second drainage channel (17) is communicated with a third flow guide pipe (171), a landscape pool (4) is arranged on the ground downwards, one end of the third guide pipe (171) far away from the second drainage channel (17) is communicated with the side wall of the top of the landscape pool (4), a fourth guide pipe (41) is fixedly communicated with the side wall of the landscape pool (4), one end of the fourth flow guide pipe (41) far away from the landscape pool (4) is fixedly communicated with a second water collecting well (5), and a fifth draft tube (51) is communicated between the second water collecting well (5) and the first water collecting well (2), and the fifth draft tube (51) is positioned below the fourth draft tube (41).

4. A water circulation system for sponge cities according to claim 3, characterized in that: second sump pit (5) intercommunication is provided with sixth honeycomb duct (61), sixth honeycomb duct (61) are located between fifth honeycomb duct (51) and fourth honeycomb duct (41) on vertical direction, second sump pit (5) one end intercommunication is kept away from in sixth honeycomb duct (61) is provided with infiltration well (6), the lateral wall and the diapire of infiltration well (6) all run through and are provided with third infiltration hole (65), infiltration well (6) top lateral wall is fixed the intercommunication has seventh honeycomb duct (62), the one end and sewer (64) fixed connection of infiltration well (6) are kept away from in seventh honeycomb duct (62).

5. A water circulation system for sponge cities according to claim 4, characterized in that: the seventh guide pipe (62) is connected with a backflow resisting assembly (63) for preventing sewage in the sewer (64) from flowing back into the seepage well (6).

6. A water circulation system for sponge cities according to claim 5, characterized in that: the anti-reflux component (63) comprises a first connecting block (631) arranged on a seventh guide pipe (62), a first cavity (632) is arranged inside the first connecting block (631), a first baffle (633) fixedly connected with the first connecting block (631) is arranged at the bottom of the first cavity (632), a second baffle (634) is fixedly connected to the upper surface of the first baffle (633), a rubber plate (635) is slidably connected between the second baffle (634) and the first connecting block (631), a first supporting rod (636) is fixedly connected to the upper surface of the rubber plate (635), a spring (6351) is sleeved outside the first supporting rod (636), a first through hole (6311) for the first supporting rod (636) to be slidably inserted is formed in the top of the first connecting block (631), and a connecting rod (637) is fixedly connected to one end, far away from the first connecting block (631), of the first supporting rod (636), the middle part of the fifth guide pipe (51) is provided with a second connecting block (52), a second cavity (521) is arranged inside the second connecting block (52), a vertically-arranged inserting groove (53) is formed in the second connecting block (52), a third baffle (531) is inserted in the inserting groove (53) in a sliding manner, and the upper surface of the third baffle (531) is fixedly connected with a connecting rod (637).

7. A water circulation system for sponge cities according to claim 6, characterized in that: the water collecting tower (3) bottom intercommunication is provided with drainage pipe (32), the fixed intercommunication of one end that water collecting tower (3) were kept away from in drainage pipe (32) has first delivery pipe (33), first delivery pipe (33) are close to water collecting tower (3) one end and are provided with first valve (331), are provided with greenbelt (7) subaerially, first delivery pipe (33) are kept away from water collecting tower (3) one end fixed intercommunication and are had watering pipeline (332) of setting in greenbelt (7) top, and watering pipeline (332) bottom fixedly connected with second bracing piece (333), second bracing piece (333) bottom and ground fixed connection, watering pipeline (332) bottom intercommunication is provided with watering shower nozzle (334).

8. A water circulation system for sponge cities according to claim 7, characterized in that: drainage pipe (32) are kept away from water collection tower (3) one end and still are fixed the intercommunication have second water supply pipe (34), second water supply pipe (34) are close to water collection tower (3) one end and are provided with second valve (341), second water supply pipe (34) are kept away from drainage pipe (32) one end and are fixed the intercommunication have wash pipeline (342) of setting in second drainage canal (17) top, wash pipeline (342) bottom and are fixed the intercommunication have wash pipeline (343), wash pipeline (343) stretch into the inside of second drainage canal (17) and with second drainage canal (17) top butt.

9. A water circulation system for sponge cities according to claim 6, characterized in that: inwards offer ring channel (6312) that are the annular setting on the lateral wall of first through-hole (6311), be provided with in ring channel (6312) with sealing washer (6313) of first connecting block (631) butt, the middle part of sealing washer (6313) is provided with second through-hole (6314) that supply first bracing piece (636) to pass through.

10. A water circulation system for sponge cities as claimed in claim 3 wherein the end of the second draft tube (16) near the raceway (1) is provided with a filter screen (161) fixedly connected to the inner wall of the second draft tube (16).

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