CN107055798B

CN107055798B - Town road drainage system

Info

Publication number: CN107055798B
Application number: CN201710269342.7A
Authority: CN
Inventors: 吕超麟
Original assignee: Zhejiang Zhongjing Municipal Garden Construction Co ltd
Current assignee: Zhejiang Zhongjing Municipal Garden Construction Co ltd
Priority date: 2017-04-24
Filing date: 2017-04-24
Publication date: 2020-10-27
Anticipated expiration: 2037-04-24
Also published as: CN107055798A

Abstract

The invention discloses a municipal road drainage system, which comprises a base, a lane positioned above the base, a pedestrian crossing positioned on one side of the lane and higher than the lane, the inlet for stom water that is located between lane and the pedestrian's crosswalk, be located the cistern that the lane one end was kept away from to the pedestrian's crosswalk, be located the cistern and keep away from the perpendicular constructed wetland of pedestrian's crosswalk one side and be located the surface current constructed wetland that perpendicular constructed wetland kept away from cistern one side, be equipped with the grass shoulder between pedestrian's crosswalk and the cistern, be equipped with the inspection shaft along vertical direction on the lane, set up the inlet tube that is used for intercommunication cistern and inlet for stom water and be used for intercommunication inspection shaft and the drain pipe of inlet for stom water on the base, be equipped with the connecting pipe between perpendicular constructed wetland and the surface current constructed wetland, all be equipped with the packing layer in the surface current constructed wetland, the connecting pipe is located the packing layer. Thereby realizing the recycling of rainwater and simultaneously slowing down the urban drainage pressure.

Description

Town road drainage system

Technical Field

The invention relates to road drainage, in particular to a municipal road drainage system.

Background

With the rapid development of the socioeconomic of China and the acceleration of the urbanization process, both the original resource type water shortage and the water quality pollution type water shortage have serious influence and restrict the sustainable development of the socioeconomic of China. How to solve the problem becomes a very important research subject in the social and economic development of China.

In the fifteen plan outline, the proposed strategy concept of rainwater recycling is undoubtedly one of effective means, and rainwater recycling not only can improve the ecological environment of surface water and reduce the investment and operating cost of drainage engineering, but also can greatly increase the available water supply, reduce the water supply treatment and water supply cost and reduce the economic loss caused by water shortage.

At present, the purification and reuse rate of rainwater in China is very low. Although the reasons for this situation are manifold, the main reason is rainwater purification and recycling technology, and the technology cannot meet the requirements of marketization of sewage resources.

Although the traditional biological aeration tank technology can effectively remove organic matters in sewage, the removal capability of the traditional biological aeration tank technology on nitrogen and phosphorus is low, and the quality of effluent cannot reach the reclaimed water reuse standard; although the quality of effluent water of the membrane bioreactor technology is high, the investment and operation cost is high, so that the wide application of the technology is limited, and other chemical physical treatment technologies also have the problems of high investment and operation cost, unstable effluent water quality, secondary pollution and the like.

In order to make the rainwater recycling strategy implement in China have great development, the development and research of a novel rainwater purification and reuse technology have very important significance.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a municipal road drainage system which can purify and recycle road rainwater and fully utilize water resources.

In order to achieve the purpose, the invention provides the following technical scheme:

a municipal road drainage system comprises a base, a lane above the base, a pedestrian crossing which is positioned on one side of the lane and is higher than the lane, a rainwater inlet which is positioned between the lane and the pedestrian crossing, a reservoir which is positioned at one end of the pedestrian crossing far away from the lane, a vertical artificial wetland which is positioned on one side of the reservoir far away from the pedestrian crossing and a surface flow artificial wetland which is positioned on one side of the vertical artificial wetland far away from the reservoir, wherein grass shoulders are arranged between the pedestrian crossing and the reservoir, the transverse gradient of the lane and the pedestrian crossing towards the reservoir is 2 percent, an inspection well is arranged on the lane along the vertical direction, a water inlet pipe for communicating the reservoir with the rainwater inlet and a water outlet pipe for communicating the inspection well with the rainwater inlet are arranged on the base, a connecting pipe is arranged between the vertical artificial wetland and the surface flow artificial wetland, and packing layers are arranged in the vertical artificial wetland and the surface flow artificial wetland, the connecting pipe is positioned in the filler layer, and a water outlet pipe with a first valve is arranged on one side of the surface flow artificial wetland, which is far away from the vertical artificial wetland.

Through adopting above-mentioned technical scheme, when raining, the rainwater falls on lane and pedestrian's crosswalk, and the rainwater on the lane falls into in the rainwater mouth, and in the part flowed into the inspection shaft through the drain pipe, the part flowed into the cistern through the inlet tube. Rainwater on the pedestrian crossing falls down along the grass shoulder and falls into the water storage tank. After the water in the water storage tank is fully stored, the water overflows to the vertical artificial wetland and falls down along the vertical direction, and primary filtration is completed through the vertical artificial wetland; then the rainwater flowing to the bottom end of the vertical artificial wetland flows into the surface flow artificial wetland through the connecting pipe and flows along the radial direction to complete secondary filtration, and the filtered rainwater flows out from the water outlet pipe and becomes usable daily water.

Because the vertical artificial wetland is different from the surface flow wetland in water inflow and needs certain hydraulic thrust, the water overflowing from the reservoir realizes the overflow gravity inflow, ensures that rainwater can better move along the vertical direction, and realizes better filtration.

And because part of water flows to the reservoir, the vertical artificial wetland and the surface flow wetland under the guidance of the water inlet pipe, the drainage pressure of the inspection well and the water outlet pipe is reduced, the rainwater on the road surface is reduced, and the city has better water storage and flood discharge capacity.

The invention is further provided with: the water storage tank is internally provided with a filtering device, the filtering device comprises a plurality of floating filter layers stacked along the vertical direction, each floating filter layer comprises a frame body, a steel wire mesh arranged at an upper opening and a lower opening of the frame body and a filtering material filled in the frame body, the thickness of each floating filter layer is sequentially increased from top to bottom, and the filling height of each filtering material is 95 percent of the height of each floating filter layer; the sewage flowing out of the water inlet pipe and the sewage flowing down along the grass shoulders flow to the floating filter layer on the uppermost layer.

Through adopting above-mentioned technical scheme to make the water that flows into in the cistern need filter through floating the filter bed, suspended particles are stayed in the filter material, get rid of the SS of rainwater, have reduced the content of SS in the rainwater.

The invention is further provided with: the filter material is composed of first particles and second particles, the first particles and the second particles are foam ball particles, the radius of the first particles is 0.4 cm-0.5 cm, the radius of the second particles is 0.15 cm-0.2 cm, and the laying thickness of the first particles and the laying thickness of the second particles are 1: 1.

Through adopting above-mentioned technical scheme, when guaranteeing that showy filtering layer has better SS clearance to the rainwater, reduce the flood peak of rainwater loss when showy filtering layer. And because the filter material is foam ball particles, the water absorption rate is low, the corrosion resistance is strong, and the service life of the floating filter layer is ensured. Meanwhile, as the density of the filter material is low and the density of the particulate matter is high, when the floating filter layer is cleaned, only the floating filter layer needs to be vibrated, so that the particulate matter trapped by the floating filter layer sinks, the floating filter layer can be conveniently cleaned, and the maintenance time is shortened.

The invention is further provided with: the side wall of the reservoir is rotatably connected with a guide baffle plate, the guide baffle plate is positioned above the water inlet pipe, and a return spring is arranged between the guide baffle plate and the inner wall of the reservoir; when the return spring is in a natural state, the free end of the guide baffle is downwards inclined towards the filtering device.

By adopting the technical scheme, when the water flow is small, the water outlet of the water inlet pipe flows to the floating filter layer under the blocking of the guide baffle plate. When the rainfall is too large and the water flow in the water inlet pipe is large, the water flow pushes the guide baffle to rotate, so that the water is directly discharged into the water storage tank. The drainage efficiency is accelerated, and therefore the surface water is reduced. When the water flow is small, the guide baffle plate resets, the guide rainwater continuously flows into the floating filter layer, and SS in the rainwater is removed as much as possible under the condition that the drainage is not influenced.

The invention is further provided with: filter equipment still includes the waterproof shell that links firmly in the cistern of all showy filter layers of cladding, the waterproof shell upper end is the opening setting, the waterproof shell lateral wall is equipped with the water pipe that has the second valve that is located showy filter layer below, it is equipped with the connecting plate that is used for connecting all showy filter layers to float filter layer one side, threaded connection has the fixing bolt who is used for linking firmly the connecting plate on the waterproof shell, vertical direction sliding connection in waterproof shell is followed to the connecting plate, just connecting plate and waterproof shell are radial fixed, be equipped with on the waterproof shell and be used for driving the vibrations mechanism of connecting plate along vertical direction vibrations.

Through adopting above-mentioned technical scheme to ensure to flow into the rainwater in the showy filtering layer from showy filtering layer top, all can receive the filtration of all showy filtering layers, improved its SS clearance to the rainwater. When the floating filter layer needs to be cleaned, only the fixing bolt needs to be screwed off, the connecting plate can slide relative to the waterproof shell, then the connecting plate is driven to vibrate by the vibration mechanism, the floating filter layer vibrates, cleaning is completed, and then dirty water in the waterproof shell is pumped out. The floating filter layer is not needed to be cleaned by clean water, so that water resources are saved. Meanwhile, when the floating filter layer is cleaned, the floating filter layer does not need to be taken out, so that the floating filter layer is convenient to clean.

The invention is further provided with: inlet tube one side is equipped with the inlet pipe with the inlet tube intercommunication, cistern one side is equipped with the storage case that corresponds with the inlet pipe, the inlet pipe is close to cistern one end and is equipped with the carousel of rotating connection in the inlet tube, the carousel outer wall has set firmly gets the spoon, it is equipped with a plurality of along carousel circumference to get the spoon, is equipped with the stock guide that is used for getting the rubbish direction that the spoon opening dropped down into the inlet tube between the material spoon is got to two vicinities.

Through adopting above-mentioned technical scheme, the rivers in the inlet tube flow to get in the material spoon, give and get a driving force of material spoon to make the carousel rotate. When getting the material spoon and leaving the rainwater, get impurity that the material spoon can spoon out the rainwater, like hair and vegetable leaf etc. the material spoon of getting that contains impurity rotates along with the carousel, and until its opening down, impurity enters into in the inlet tube along the stock guide, then along the inlet pipe feeding to the storage case. Therefore, the garbage in the rainwater can be conveniently removed and recovered, the large garbage is prevented from being accumulated and is vertical to the upper surface of the artificial wetland, and the wetland is more attractive.

The invention is further provided with: the rotary table is coaxially fixedly provided with a driving shaft back to one side of the feeding pipe, the driving shaft is connected to the reservoir in a rotating mode, the vibration mechanism comprises a vibration disc which is eccentrically and rotatably connected to the waterproof shell and a linkage mechanism which is used for linking the vibration disc and rotates along with a driven shaft, and the vibration disc is abutted to the upper end face of the connecting plate.

Through adopting above-mentioned technical scheme, rivers drive carousel rotates to make the vibrations dish produce eccentric rotation, when the vibrations dish eccentric rotation, make the connecting plate link firmly in the buckler, the vibrations dish strikes the connecting plate, thereby makes the vibrations of showy filter bed, has accomplished the washing of showy filter bed. In the process, the vibration of the floating filter layer can be realized without an external power source, and the energy is fully utilized. When the cleaning is not needed, only the fixing bolt is screwed off, and the connecting plate can be relatively waterproof and slidable.

The invention is further provided with: the link gear including set firmly in the relative driven shaft one end driving gear of driving shaft, the driven gear who meshes the driving gear, be located driving shaft one side and wear to establish the driven shaft of giving out the cistern, off-centre link firmly in the vibrations dish and rotate the chain of connecting in the pivot of waterproof case and linkage pivot and driven shaft, the driven shaft sets up and rotates along the horizontal direction and connects in the cistern, the driven shaft is coaxial to be linked firmly in driven gear.

Through adopting above-mentioned technical scheme, the carousel drives driving shaft, driving gear, driven shaft, chain, pivot in proper order and rotates, has finally realized the drive to the vibrations dish, makes the vibrations dish rotate under the condition of not having external power supply, makes showy filtering layer vibrations.

The invention is further provided with: the utility model discloses a chain wheel, including waterproof shell, chain cover, driven shaft, drive shaft, driven shaft, waterproof shell, chain cover, set up on the first chain wheel and be used for inlaying the round hole of establishing the driven shaft, the keyway has radially been seted up along it to waterproof shell outer wall rotation, the pivot sets firmly the second sprocket back to waterproof shell one end, the chain cover is located outside first sprocket and the second sprocket, set up on the first chain wheel and be used for inlaying the round hole of establishing the driven shaft, the round hole inner wall is scalable setting along.

By adopting the technical scheme, when the floating filter layer is not required to be cleaned, only the driven shaft needs to be shortened, and the driven shaft is separated from the key groove without screwing down the fixing bolt. Thereby leading the floating filter layer to be stably and fixedly connected with the waterproof shell all the time. So that the filter can keep stable under the impact of water flow, and can better filter SS in rainwater.

The invention has the following advantages: can remove SS in the rainwater, reduce BOD5 in the rainwater, carry out recycle to the rainwater, make full use of water resource. Meanwhile, because the vertical artificial wetland and the surface flow artificial wetland have water storage property, the drainage pressure of the city and the water supply pressure during drought can be reduced, and a sponge city is formed.

Drawings

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

FIG. 2 is a sectional view of a sidewall of a reservoir in an embodiment;

FIG. 3 is a schematic top view of a storage bin and reservoir of an embodiment;

FIG. 4 is a partial sectional view of a water reservoir in an embodiment;

FIG. 5 is a schematic structural diagram of a turntable and a material taking spoon in the embodiment;

FIG. 6 is a sectional view of a waterproof case in the embodiment;

FIG. 7 is a sectional view of a floating filter layer in the embodiment;

FIG. 8 is a sectional view of a driving shaft and a driven shaft in the embodiment;

FIG. 9 is a cross-sectional view of the driven shaft and the first sprocket of the embodiment;

FIG. 10 is a partial cross-sectional view of the embodiment (primarily for embodying a chain);

fig. 11 is a partial schematic view of a vibration mechanism in an embodiment.

Reference numerals: 1. a base; 2. a lane; 3. a pedestrian crossing; 4. a reservoir; 5. vertical artificial wetland; 6. surface flow constructed wetlands; 7. a gutter inlet; 8. an inspection well; 9. a drain pipe; 10. grass shoulder; 11. a water inlet pipe; 12. a feed pipe; 13. a material storage box; 14. a turntable; 15. taking a material spoon; 16. a material guide plate; 17. a drive shaft; 18. a guide baffle plate; 19. a return spring; 20. a waterproof shell; 21. a water pipe; 22. a second valve; 23. a dovetail groove; 24. connecting blocks; 25. a connecting plate; 26. fixing the bolt; 27. a floating filter layer; 28. a frame body; 29. steel wire mesh; 30. filtering the material; 31. a first particle; 32. a second particle; 33. a vibration mechanism; 34. a vibration plate; 35. a linkage mechanism; 36. a driving gear; 37. a driven gear; 38. a driven shaft; 39. a rotating shaft; 40. a chain; 41. a first shaft; 42. a second shaft; 43. an adjusting bolt; 44. an adjustment hole; 45. a first sprocket; 46. a second sprocket; 47. a circular hole; 48. a keyway; 49. a flat bond; 50. a filler layer; 51. backfilling the soil layer; 52. an aquatic plant layer; 53. a connecting pipe; 54. a water outlet pipe; 55. a first valve; 56. a water storage pool; 57. and (4) a filtering device.

Detailed Description

The invention is further described with reference to the accompanying drawings.

As shown in fig. 1, the municipal road drainage system comprises a base 1, a lane 2 positioned above the base 1, a pedestrian crossing 3 positioned on one side of the lane 2, a reservoir 4 positioned on one end of the pedestrian crossing 3 far away from the lane 2, a vertical artificial wetland 5 positioned on one side of the reservoir 4 far away from the pedestrian crossing 3, and a surface flow artificial wetland 6 positioned on one side of the vertical artificial wetland 5 far away from the reservoir 4.

As shown in fig. 1, the lane 2 and the crosswalk 3 are inclined toward the reservoir 4, and the lateral slopes of the lane 2 and the crosswalk 3 are each 2%. The pedestrian crossing 3 is higher than the lane 2, has seted up inlet for stom water 7 between pedestrian crossing 3 and the lane 2, and inlet for stom water 7 is equipped with a plurality of along 3 length direction of pedestrian crossing, and the interval between two inlet for stom water 7 is 25~50 m. An inspection well 8 is arranged on the lane 2 along the vertical direction, and a drain pipe 9 for communicating the inspection well 8 with the rainwater port 7 is embedded in the base 1.

As shown in fig. 1, a grass shoulder 10 is arranged between the reservoir 4 and the pedestrian crossing 3, and the grass shoulder 10 is arranged in a downward inclined manner towards one end of the reservoir 4 to guide accumulated water on the sidewalk into the reservoir 4. A water inlet pipe 11 for communicating the water storage tank 4 and the rainwater port 7 is embedded in the base 1.

As shown in fig. 2 and 3, a feed pipe 12 communicated with the feed pipe 11 is provided at one side of the feed pipe 11, and a storage tank 13 corresponding to the feed pipe 12 is provided at one side of the reservoir 4. As shown in FIG. 4, the feed pipe 12 is provided with a rotary plate 14 at an end thereof adjacent to the reservoir 4, the rotary plate 14 is rotatably connected to the feed pipe 12, and an axial direction of the rotary plate 14 is perpendicular to an axial direction of the feed pipe 12. As shown in fig. 5, the outer wall of the turntable 14 is fixedly provided with a plurality of material taking scoops 15, the material taking scoops 15 are circumferentially arranged along the turntable 14, and a material guide plate 16 is arranged between two adjacent material taking scoops 15. The guide plate 16 extends to the side of the inlet pipe 11 close to the inlet pipe 12, and garbage falls from the material taking spoon 15, falls on the guide plate 16 and slides along the guide plate 16 into the inlet pipe 12. A driving shaft 17 is coaxially and fixedly arranged on one side of the rotary disc 14, which is back to the feeding pipe 12. The driving shaft 17 is rotatably connected to the water reservoir 4.

As shown in fig. 4, a guide baffle 18 is rotatably connected to the side wall of the reservoir 4, and the guide baffle 18 is positioned above the water inlet pipe 11. A return spring 19 is arranged between the guide baffle 18 and the inner wall of the water storage tank 4, and two ends of the return spring 19 are fixedly connected to the guide baffle 18 and the inner wall of the water storage tank 4 in a decomposition way. When the return spring 19 is in a natural state, the free end of the guide baffle 18 is arranged in a downward inclination.

As shown in fig. 4, a waterproof case 20 is provided under the guide fence 18, and rainwater flowing into the water reservoir 4 along the guide fence 18 and the grass shoulder 10 falls into the waterproof case 20. The waterproof case 20 is cubic and is fixedly disposed in the water reservoir 4. The upper end of the waterproof case 20 is provided with an opening, the side wall of the lower end of the waterproof case 20 is provided with a water pipe 21, and the water pipe 21 is provided with a second valve 22. As shown in fig. 4 and 6, a dovetail groove 23 is formed in the side wall of the waterproof case 20 along the axial direction thereof, a connection block 24 is slidably connected in the dovetail groove 23, a connection plate 25 is fixedly arranged on the outer wall of the connection block 24, and the connection plate 25 is embedded in the waterproof case 20 and slidably connected to the waterproof case 20. As shown in fig. 4, a fixing bolt 26 is screwed to the waterproof case 20, and the fixing bolt 26 is screwed to the connecting plate 25. The connecting plate 25 and the waterproof case 20 are stably fixed together by tightening the fixing bolt 26.

As shown in fig. 4, a floating filter layer 27 is fixedly arranged on one side of the connecting plate 25 opposite to the connecting block 24. The floating filter layer 27 and the watertight housing 20 constitute a filtering means 57 for filtering SS in the rainwater. The outer wall of the floating filter layer 27 abuts against the inner wall of the waterproof case 20. The floating filter layers 27 are axially provided with a plurality of floating filter layers, and the thickness of the floating filter layers 27 is increased from top to bottom in sequence. And the water pipe 21 is located below the lowermost floating filter layer 27. As shown in fig. 7, the floating filter layer 27 includes a frame 28, a steel mesh 29, and a filter material 30. The steel wire meshes 29 are fixedly arranged at the upper and lower ends of the frame body 28 and are closed at the upper and lower openings of the frame body 28.

As shown in fig. 7, the filter material 30 is filled in the frame 28, and the filling height of the filter material 30 is 95% of the height of the floating filter layer 27. The filter material 30 is composed of first particles 31 and second particles 32, the first particles 31 and the second particles 32 are foam ball particles, the radius of the first particles 31 is 0.4 cm-0.5 cm, the radius of the second particles 32 is 0.15 cm-0.2 cm, and the laying thickness of the first particles 31 and the second particles 32 is 1: 1.

As shown in fig. 4, the waterproof case 20 is provided with a vibration mechanism 33 for driving the connection plate 25 to vibrate in the vertical direction. The vibration mechanism 33 comprises a vibration disc 34 and a linkage mechanism 35 connected to the driving shaft 17, the vibration disc 34 is eccentrically and rotatably connected to the waterproof case 20, and the vibration disc 34 abuts against the upper end surface of the connecting plate 25. A cavity for accommodating the linkage 35 is formed in the reservoir 4.

As shown in fig. 8 and 10, the link mechanism 35 includes a drive gear 36, a driven gear 37, a driven shaft 38, a rotating shaft 39, and a chain 40. As shown in fig. 8, the driven shaft 38 is disposed in a horizontal direction and perpendicular to the driving shaft 17, and the driven shaft 38 is rotatably connected to the water reservoir 4 and penetrates through the water reservoir 4. The driven shaft 38 comprises a first shaft 41 close to the driving shaft 17 and a second shaft 42 far away from the driving shaft, and the second shaft 42 is embedded in the first shaft 41 and is connected with the first shaft 41 in a sliding mode. As shown in fig. 9, the first shaft 41 is threadedly connected with an adjusting bolt 43, the outer wall of the second shaft 42 is provided with two adjusting holes 44, and the two adjusting holes 44 are arranged along the axial direction of the second shaft 42. The length of the driven shaft 38 is adjusted by screwing the adjusting bolt 43 to different adjusting holes 44.

As shown in FIG. 8, the driving gear 36 is coaxially fixed at one end of the driving shaft 17 opposite to the water inlet pipe 11, the driven gear 37 is fixed at one end of the first shaft 41 opposite to the second shaft 42, and the driven gear 37 is engaged with the driving gear 36. As shown in fig. 11, the rotating shaft 39 is coaxially fixed to the vibration plate 34, and a second chain wheel 46 is fixed to an end of the rotating shaft 39 opposite to the waterproof case 20. As shown in fig. 9 and 10, the outer wall of the waterproof case 20 is rotatably connected with a first chain wheel 45, and the chain 40 is sleeved outside the first chain wheel 45 and the second chain wheel 46, so that the first chain wheel 45 and the second chain wheel 46 are linked.

As shown in fig. 10, the first sprocket 45 is provided with a circular hole 47 for fitting the second shaft 42, and the inner wall of the circular hole 47 is provided with a key groove 48 along the radial direction thereof. The outer wall of the second shaft 42 opposite to the first shaft 41 is fixedly provided with a flat key 49. When the flat key 49 is inserted into the key groove 48, the second shaft 42 drives the first sprocket 45 to rotate, thereby driving the vibration plate 34 to rotate.

As shown in fig. 1, the vertical artificial wetland 5 and the surface flow artificial wetland 6 are both internally provided with a packing layer 50, the packing layer 50 is composed of gravel and zeolite, and the pores in the packing layer 50 are 30-50%. The packing layer 50 is also provided with a backfill soil layer 51 and an aquatic plant layer 52 from bottom to top in sequence. The aquatic plant layer 52 is composed of reed, cress, and hornworts. A connecting pipe 53 is arranged between the vertical artificial wetland 5 and the surface flow artificial wetland 6, and the connecting pipe 53 is positioned in the packing layer 50. A water outlet pipe 54 with a first valve 55 is arranged on one side of the surface flow artificial wetland 6 away from the vertical artificial wetland 5. One end of the water outlet pipe 54, which is opposite to the surface flow artificial wetland 6, is provided with a water storage tank 56.

The working principle of the drainage system is as follows:

1. when raining, rainwater falls on the lane 2 and the pedestrian crossing 3, and the rainwater on the pedestrian crossing 3 directly falls into the waterproof shell 20 along the grass shoulder 10; rainwater on the lane 2 falls into the rainwater port 7, and part of the rainwater flows into the inspection well 8 through the drainage pipe 9 to participate in conventional drainage;

part of the water flow enters the water inlet pipe 11, the water flow has an impact force, when the water flow is beaten into the material taking spoon 15, the water flow has a pushing force on the material taking spoon 15, so that the turntable 14 rotates, and the material taking spoon 15 scoops large impurities such as hair, glass and the like in rainwater along with the rotation of the turntable 14;

the material taking spoon 15 containing impurities rotates along with the rotary disc 14 until the opening of the material taking spoon 15 faces downwards, the impurities fall from the material taking spoon 15, enter the feeding pipe 12 along the material guide plate 16 and then enter the material storage box 13 along the feeding pipe 12, and initial evolution of rainwater is completed; the second shaft 42 is not embedded in the circular hole 47;

2. when the rainfall is small, the rainwater falling along the water inlet pipe 11 falls into the waterproof shell 20 from the upper end of the waterproof shell 20 under the guidance of the guide baffle 18, and sequentially passes through the plurality of floating filter layers 27 to finish the removal of SS in the rainwater;

if the rainfall is large, the water in the water inlet pipe 11 has high speed, and great impact force is exerted on the guide baffle 18, so that the guide baffle 18 is driven to rotate, the water can directly fall into the reservoir 4, and the drainage efficiency is improved;

3. the water treated by the floating filter layer 27 flows out of the water pipe 21 to the water storage tank 4, after the water storage tank 4 is full, the water overflows from the upper end of the water storage tank 4, overflows into the vertical artificial wetland 5, passes through the vertical artificial wetland 5 along the vertical direction, flows into the surface flow artificial wetland 6 through the connecting pipe 53, is filtered by the surface flow artificial wetland 6, and then flows out of the water through the water outlet pipe 54 to the water storage tank 56, so that the collection and purification of rainwater are completed;

4. if the floating filter layer 27 needs to be cleaned, the adjusting bolts and 43 are only required to be screwed off, the second shaft 42 is slid relative to the first shaft 41, the second shaft 42 is embedded in the round hole 47, the flat key 49 is embedded in the key groove 48, and then the adjusting bolts and 43 are screwed on, so that the second shaft 42 is fixed relative to the first shaft 41; closing second valve 22;

5. the rivers drive carousel 14 in the inlet tube 11 rotates, make driving shaft 17, driving gear 36, driven gear 37, driven shaft 38, first sprocket 45 and second sprocket 46 rotate in proper order, thereby make vibrations dish 34 eccentric rotation, the connecting plate 25 is strikeed to the eccentric pivoted in-process of vibrations dish 34, thereby make and float the vibrations of filtering layer 27, make the particulate matter and the filter material 30 separation in the showy filtering layer 27, the completion is to the cleanness on showy rate layer, then take out the sewage in the waterproof shell 20 can.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A town road drainage system, characterized by: including base (1), be located lane (2) of base (1) top, be located lane (2) one side and be higher than pedestrian's cross walk (3) of lane (2), be located inlet for stom water (7) between lane (2) and pedestrian cross walk (3), be located pedestrian cross walk (3) and keep away from cistern (4) of lane (2) one end, be located perpendicular constructed wetland (5) of pedestrian cross walk (3) one side and be located perpendicular constructed wetland (5) and keep away from surface current constructed wetland (6) of cistern (4) one side, be equipped with grass shoulder (10) between pedestrian cross walk (3) and cistern (4), lane (2) and pedestrian cross walk (3) are 2% towards the horizontal slope of cistern (4), be equipped with inspection shaft (8) along vertical direction on lane (2), set up inlet tube (11) and be used for communicateing inlet for cistern (4) and rainwater mouth (7) on base (1), (11) and be used for communicateing inspection shaft- 8) A drainage pipe (9) of the rainwater port (7), a connecting pipe (53) is arranged between the vertical artificial wetland (5) and the surface flow artificial wetland (6), packing layers (50) are arranged in the vertical artificial wetland (5) and the surface flow artificial wetland (6), the connecting pipe (53) is positioned in the packing layer (50), and a water outlet pipe (54) with a first valve (55) is arranged on one side of the surface flow artificial wetland (6) far away from the vertical artificial wetland (5); a filtering device (57) is arranged in the water storage tank (4), the side wall of the water storage tank (4) is rotatably connected with a guide baffle plate (18), the guide baffle plate (18) is positioned above the water inlet pipe (11), and a return spring (19) is arranged between the guide baffle plate (18) and the inner wall of the water storage tank (4); when the return spring (19) is in a natural state, the free end of the guide baffle (18) is inclined downwards towards the filtering device (57).

2. A municipal road drainage system according to claim 1, wherein: the filtering device (57) comprises a plurality of floating filtering layers (27) stacked in the vertical direction, each floating filtering layer (27) comprises a frame body (28), a steel wire mesh (29) arranged at an upper opening and a lower opening of the frame body (28) and a filtering material (30) filled in the frame body (28), the thickness of each floating filtering layer (27) is sequentially increased from top to bottom, and the filling height of each filtering material (30) is 95% of the height of each floating filtering layer (27); the sewage flowing out of the water inlet pipe (11) and the sewage flowing down along the grass shoulder (10) flow to the floating filter layer (27) on the uppermost layer.

3. A municipal road drainage system according to claim 2, wherein: the filter material (30) is composed of first particles (31) and second particles (32), the first particles (31) and the second particles (32) are foam ball particles, the radius of the first particles (31) is 0.4 cm-0.5 cm, the radius of the second particles (32) is 0.15 cm-0.2 cm, and the laying thickness of the first particles (31) and the second particles (32) is 1: 1.

4. A municipal road drainage system according to claim 3, wherein: filter equipment (57) still includes waterproof case (20) of linking firmly in cistern (4) of all showy filter layers (27) of cladding, waterproof case (20) upper end is the opening setting, waterproof case (20) lateral wall is equipped with and is located water pipe (21) that have second valve (22) of showy filter layer (27) below, it is equipped with connecting plate (25) that are used for connecting all showy filter layers (27) to float filter layer (27) one side, threaded connection has fixing bolt (26) that are used for linking firmly connecting plate (25) on waterproof case (20), vertical direction sliding connection in waterproof case (20) is followed in connecting plate (25), just connecting plate (25) and waterproof case (20) are radial fixation, be equipped with on waterproof case (20) and be used for driving connecting plate (25) along the vibrations of vertical direction vibrations mechanism (33).

5. A municipal road drainage system according to claim 4, wherein: inlet tube (11) one side is equipped with inlet pipe (12) with inlet tube (11) intercommunication, cistern (4) one side is equipped with storage case (13) that corresponds with inlet pipe (12), inlet pipe (12) are close to cistern (4) one end and are equipped with carousel (14) of rotation connection in inlet tube (11), carousel (14) outer wall has set firmly gets material spoon (15), it is equipped with a plurality of along carousel (14) circumference to get material spoon (15), is equipped with between two adjacent material spoons (15) and is used for getting rubbish direction income inlet pipe (12) guide plate (16) that material spoon (15) opening dropped down.

6. A municipal road drainage system according to claim 5, wherein: carousel (14) are set firmly driving shaft (17) to one side of inlet pipe (12) one side is coaxial, driving shaft (17) rotate and connect in cistern (4), vibrations mechanism (33) are connected in vibrations dish (34) of waterproof case (20) and are used for linkage vibrations dish (34) along with driven shaft (38) pivoted link gear (35) including eccentric rotation, vibrations dish (34) butt in connecting plate (25) up end.

7. A municipal road drainage system according to claim 6, wherein: link gear (35) including set firmly in driving shaft (17) relative driven shaft (38) one end driving gear (36), driven gear (37) that mesh in driving gear (36), be located driving shaft (17) one side and wear to establish driven shaft (38) of giving up cistern (4), eccentric link firmly in vibrations dish (34) and rotate and connect in pivot (39) and linkage pivot (39) and chain (40) of driven shaft (38) of waterproof case (20), driven shaft (38) set up and rotate along the horizontal direction and connect in cistern (4), driven shaft (38) coaxial link firmly in driven gear (37).

8. A municipal road drainage system according to claim 7, wherein: waterproof housing (20) outer wall rotates and is connected with first sprocket (45), pivot (39) set firmly second sprocket (46) to waterproof housing (20) one end dorsad, first sprocket (45) and second sprocket (46) are located to chain (40) cover outside, offer round hole (47) that are used for inlaying and establish driven shaft (38) on first sprocket (45), keyway (48) have radially been seted up along it to round hole (47) inner wall, driven shaft (38) are scalable setting, driven shaft (38) one end outer wall sets firmly flat key (49) of inlaying and locating in keyway (48).