CN114855974A

CN114855974A - Community sponge system for residential community

Info

Publication number: CN114855974A
Application number: CN202110076484.8A
Authority: CN
Inventors: 宣立军; 胡海涛
Original assignee: Jiangsu Ziqin Construction Development Co ltd
Current assignee: Jiangsu Ziqin Construction Development Co ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2022-08-05

Abstract

The utility model relates to a residential community uses community sponge system, belong to district water treatment facilities's field, it includes the activity square, the activity square is provided with the afforestation district on one side, the collecting pit has been seted up to activity square below, the activity square is including supplying infiltration layer and the bearer layer of rainwater infiltration, the bearer layer is located infiltration layer below and is located the collecting pit, bearer layer and collecting pit fixed connection, there is the distance between bearer layer and the infiltration layer, be provided with the spray set who supplies rainwater in the collecting pit to infiltration layer upper surface on the bearer layer, be provided with the inlet tube on the collecting pit, inlet tube one end and the inside intercommunication of collecting pit, the other end communicates with the architectural rainwater pipe bottom in district. The method and the device have the effect of fully utilizing the rainwater resources of the residential area.

Description

Community sponge system for residential district

Technical Field

The application relates to the field of community water treatment equipment, in particular to a community sponge system for residential communities.

Background

At present, the concept of urban rainfall flood management of a new generation means that an urban can have good elasticity in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like a sponge, and the urban rainwater management can also be called as a 'hydro-elastic city'.

In the related art, the drainage system in the district is arranged perfectly, the outside of the building is fixed with a drain pipe, so that rainwater on the roof is drained to the bottom of the building, then flows into roadside drainage channels and finally converges into a rainwater well, the rainwater directly falls into the district movable square, follows the terrain and flows into the drainage channels around the square, finally falls into the rainwater well and is discharged into a municipal rainwater pipe network, and the effect of avoiding surface water accumulation in the district is achieved.

In view of the above-mentioned related technologies, the inventor thinks that there is a defect that rainwater in a cell is directly collected into a rainwater well to be discharged, and water resource utilization is insufficient.

Disclosure of Invention

In order to improve the interior rainwater of district and directly assemble the interior discharge of rainwater well, the insufficient defect of water resource utilization, this application provides a residential district uses community sponge system.

The utility model provides a community sponge system for residential quarter adopts following technical scheme:

the utility model provides a housing district is with sponge system of community, including the activity square, the activity square is provided with the afforestation district on one side, the collecting pit has been seted up to activity square below, the activity square is including the infiltration layer and the bearer layer that supply the rainwater infiltration, the bearer layer is located infiltration layer below and is located the collecting pit, bearer layer and collecting pit fixed connection, there is the distance between bearer layer and the infiltration layer, be provided with the subassembly that sprays that supplies rainwater in the collecting pit to infiltration layer upper surface on the bearer layer, be provided with the inlet tube on the collecting pit, inlet tube one end and the inside intercommunication of collecting pit, the other end communicates with the architectural rainwater pipe bottom in district.

By adopting the technical scheme, in rainy days, rainwater falls on the roof of the residential building, flows into the water inlet pipe through the rainwater pipe and flows into the collecting tank through the water inlet pipe; the rainwater that directly falls on the activity square permeates and passes the infiltration layer and get into inside the collecting pit, assembles the rainwater in the collecting pit through deposiing, and when sunny weather, spray assembly will collect the limpid rainwater pump sending in the pond and spray to the activity square on, for the dust fall of activity square, the personnel's activity of being convenient for sprays the afforestation area simultaneously and waters for the vegetation, reaches the effect of make full use of district rainwater resource.

Optionally, the spray assembly comprises a water pump, a water supply pipe, a plurality of spray heads and a pipe network, the pipe network is slidably arranged on the bearing layer, the sliding direction slides along the vertical direction, the spray heads are communicated with the pipe network, the spray heads are vertically arranged, the spray heads are provided with a plurality of spray heads, the water pump is fixedly arranged on the bearing layer, one end of the water pump is communicated with the pipe network, the other end of the water pump is communicated with the water supply pipe, and the water supply pipe penetrates through the bearing layer and is positioned below the rainwater level in the collection pool; the water seepage layer is provided with through holes, the through holes are arranged along the periphery of the water seepage layer near the greening area, and the number of the through holes corresponds to the number of the spray heads and is positioned right above the spray heads; and a lifting component for moving the pipeline network along the vertical direction is arranged between the pipeline network and the collecting tank.

Through adopting above-mentioned technical scheme, the rainwater in the water pump will be collected the pond passes through this pump sending of water supply pipe and reaches the pipeline network, and the pipeline network falls into many rivers routes with the water source that the water pump sent, sprays away through a shower nozzle, and the cooperation lifting unit that offers of through-hole makes the shower nozzle run through the infiltration layer, sprays the infiltration layer upper surface, reaches the effect of make full use of district rainwater resource.

Optionally, the lifting assembly comprises a supporting plate and two cylinders, the supporting plate is horizontally arranged, the two supporting plates are arranged, the adjacent supporting plates are clamped and embedded fixedly, an angle exists between the horizontal projection of the adjacent supporting plates and the horizontal projection of the adjacent supporting plates, the cylinders are located at the bottom of the supporting plates and are vertically arranged, one end of each cylinder body is fixedly connected with the bearing layer, one end of each cylinder piston rod is fixedly connected with the supporting plate, and the top surface of each supporting plate is fixedly connected with the pipeline network.

Through adopting above-mentioned technical scheme, two backup pads play the supporting effect to the pipe network, and the cylinder is with the backup pad and take pipe network lifting upwards, realizes the displacement of shower nozzle in vertical direction, and easy operation is convenient.

Optionally, it has the sealed lid that supplies the through-hole to seal to articulate on the infiltration layer, the articulated shaft level sets up, be provided with reset assembly between the sealed rain infiltration layer of lid, reset assembly includes first magnetite, the second magnetite, third magnetite and fourth magnetite, first magnetite and third magnetite all with the embedded fixed connection of sealed lid, first magnetite is located the vertical lateral wall of sealed lid, the embedded fixed and through-hole inner wall of second magnetite, first magnetite and second magnetite attraction, the embedded lateral wall that deviates from the through-hole that is fixed in of sealed lid of third magnetite, the embedded infiltration layer top surface that is fixed in of fourth magnetite, the back is opened in the upset of sealed lid, third magnetite and fourth magnetite repel each other.

By adopting the technical scheme, when the spray head does not need to penetrate through the water seepage layer, the first magnet and the second magnet attract each other, so that the sealing cover cannot be easily opened, and sundries are prevented from falling into the collecting tank from the through hole; when the shower nozzle runs through the water seepage layer, the shower nozzle shifts up, with sealed lid jack-up that makes progress, first magnetite and second magnetite break away from the scope of inter attraction, sealed lid upset then, the shower nozzle is normal to water spray at water seepage layer top, magnetite third magnetite and fourth magnetite are the state of contradicting each other, retrieve when the shower nozzle and reset the back, the third magnetite and the fourth magnetite of mutual repulsion, the sealed lid of trend returns the horizontality, the inter attraction of cooperation first magnetite and second magnetite makes sealed lid reset.

Optionally, the side wall of the sealing cover opposite to the spray head is an arc-shaped side wall, and the arc-shaped concave surface is opposite to the spray head.

Through adopting above-mentioned technical scheme, the setting of sealed lid arc lateral wall makes sealed lid just not pile up sewage in the lateral wall central range of shower nozzle, reduces the dirty water drippage and with shower nozzle blocking phenomenon's emergence.

Optionally, be provided with between shower nozzle and the pipe network and turn to the subassembly, turn to the subassembly and include shell and bellows, bellows one end and shower nozzle fixed connection, the other end and pipe network intercommunication, shell and pipe network outer wall fixed connection, the bellows is located inside the shell, the shell is close to shower nozzle one end and has seted up the draw-in groove, the bellows inlay card is in the draw-in groove, the draw-in groove has been seted up a plurality ofly, the draw-in groove is seted up along shell tip circumference interval.

Through adopting above-mentioned technical scheme, the setting up of shell is guaranteed the shower nozzle and can be backed down sealed lid, and the setting up of bellows makes the shower nozzle can turn to, and the cooperation draw-in groove is fixed the shower nozzle in different positions to make the shower nozzle spray to different positions, expand big small district rainwater application range.

Optionally, be provided with the dredge pump in the collecting pit, the dredge pump is located the collecting pit bottom of the pool, and the intercommunication has the blow off pipe on the dredge pump, and the blow off pipe is kept away from dredge pump one end and is run through collecting pit and municipal sewage pipe network intercommunication.

Through adopting above-mentioned technical scheme, the silt that the dredge pump cooperation blow off pipe will deposit in the collecting pit is discharged, promotes the cleanliness factor of rainwater in the collecting pit.

Optionally, the collecting tank bottom is an arc-shaped tank bottom, the arc-shaped concave surface is arranged upwards, and the sewage pump is located at the lowest position of the arc-shaped concave surface.

Through adopting above-mentioned technical scheme, the curved setting in collecting pit bottom of the pool makes the siltation comply with the bottom of the pool trend and pile up in sunken minimum, and the dredge pump of being convenient for discharges silt.

Optionally, an air release pipe is arranged between the collecting tank and the greening area, one end of the air release pipe is communicated with the inside of the collecting tank, the other end of the air release pipe penetrates through the greening area and is located on the ground surface, and the end part of the air release pipe is hinged with a sealing door.

By adopting the technical scheme, the air release pipe is used for exchanging air in the collecting tank, so that the generation of foul smell in the collecting tank is avoided, and meanwhile, sewage treatment agents can be put into the collecting tank through the air release pipe to purify water quality, so that the sprayed rainwater meets the requirement of reclaimed water.

Optionally, a filter screen is fixedly arranged in the air release pipe, and the filter screen is located close to the sealing door.

Through adopting above-mentioned technical scheme, during the release pipe use, the filter screen blocks debris such as fallen leaves, reduces debris and falls into in the collection pond, reduces the emergence that debris blockked up the release pipe simultaneously, guarantees that the release pipe is unobstructed.

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

1. the water seepage layer and the water inlet pipe are matched with the collecting tank, so that the effect of collecting rainwater in multiple paths is realized;

2. the lifting assembly is matched with the spraying assembly to realize the repeated utilization of rainwater, and meanwhile, the concealment of the spraying assembly is completed, so that the normal activities of personnel on an activity square are ensured;

3. the setting of steering assembly makes the shower nozzle spray diversified place, realizes the dust fall and waters multiple effect.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

FIG. 2 is a sectional view showing the internal structure of the collecting tank.

Fig. 3 is a vertical sectional view of the overall structure of the embodiment of the present application.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is an enlarged view of a portion B of fig. 3.

Fig. 6 is an enlarged view of a portion C of fig. 3.

Description of reference numerals: 1. an activity square; 11. a water seepage layer; 111. a through hole; 12. a carrier layer; 2. a greening area; 3. a collection tank; 31. a water inlet pipe; 32. a sewage pump; 33. a blow-off pipe; 4. a spray assembly; 41. a water pump; 42. a water supply pipe; 43. a spray head; 44. a pipe network; 5. a lifting assembly; 51. a support plate; 52. a cylinder; 6. a sealing cover; 7. a reset assembly; 71. a first magnet; 72. a second magnet; 73. a third magnet; 74. a fourth magnet; 8. a steering assembly; 81. a housing; 811. a card slot; 82. a bellows; 9. a gas releasing pipe; 91. a sealing door; 92. and (4) a filter screen.

Detailed Description

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

The embodiment of the application discloses community sponge system for residential communities.

Referring to fig. 1, a community sponge system for residential quarter includes activity square 1, and activity square 1 is provided with afforestation district 2 all around, and 1 below in activity square is provided with collecting pit 3, and collecting pit 3 is used for the collection of rainwater to the rainwater of collecting is used for the dust fall of follow-up activity square 1 or the watering of afforestation district 2, reaches the effect that the district promoted district rainwater water resource utilization.

Referring to fig. 1 and 2, the movable square 1 is a circular square, the movable square 1 comprises a water seepage layer 11 and a bearing layer 12, the water seepage layer 11 is laid by adopting a pervious concrete material, and the bearing layer 12 is provided with a pervious hole; collecting pit 3 is cylindrical cell body, and 3 tops of collecting pit are the open type, and the setting of 11 levels in layer of seepage is with 3 top closing caps in collecting pit, and the setting of 12 levels in bearer layer, 12 circumference lateral walls in bearer layer and 3 inner wall fixed connection in collecting pit have the distance between 12 and the layer of seepage 11, are provided with spray set 4 and lifting unit 5 on the bearer layer 12, and spray set 4 cooperates lifting unit 5 to spray 1 top in movable square.

Referring to fig. 2, the spray assembly 4 comprises a water pump 41, a water supply pipe 42, a spray head 43 and a pipe network 44, wherein one end of the water supply pipe 42 is communicated with the pipe network 44, the other end of the water supply pipe penetrates through the bearing layer 12 and is positioned in the middle of the collecting tank 3 and below the liquid level of the collected rainwater, the water pump 41 is communicated with the water supply pipe 42, the water pump 41 is fixedly arranged on the top surface of the bearing layer 12, the pipe network 44 is horizontally arranged, the pipe network 44 is arranged along the circumference of the inner wall of the collecting tank 3, the spray head 43 is vertically arranged, the spray head 43 is positioned on the top of the pipe network 44, the spray head 43 is communicated with the pipe network 44, the spray head 43 is provided with a plurality of spray heads, in the embodiment, four spray heads 43 are arranged, the adjacent spray heads 43 are arranged at equal intervals along the length direction of the pipeline network 44, the water pump 41 pumps the rainwater collected in the collecting tank 3 into the pipeline network 44 through the water inlet pipe 31, and sprayed out through the spray head 43, so as to achieve the effect of providing power for the repeated utilization of the rainwater resources in the residential area.

Referring to fig. 2, the lifting assembly 5 includes a support plate 51 and two air cylinders 52, the support plate 51 is provided with two, the support plates 51 are horizontally arranged, the adjacent support plates 51 are arranged in a staggered manner in the vertical direction, the horizontal projection of the adjacent support plates 51 is cross-shaped, the support plate 51 positioned below is provided with a groove, the support plate 51 positioned above is embedded in the groove, the adjacent support plates 51 are fixed in a clamping manner, the air cylinders 52 are positioned under the intersection of the adjacent support plates 51, the air cylinders 52 are vertically arranged, one end of the body of the air cylinder 52 is fixedly connected with the top of the bearing layer 12, one end of the piston rod of the air cylinder 52 is fixedly connected with the support plate 51 positioned below, the end parts of the adjacent support plates 51 are abutted against the inner wall of the collecting tank 3, the bottom surface of the pipe network 44 is fixedly connected with the top surface of the support plate 51 positioned above, the air cylinders 52 are started, the air cylinders 52 lift the support plates 51 with the pipe network 44 upwards, and provide a vertical driving force for the spray heads 43 to penetrate through the water seepage layer 11 or to be accommodated below the water seepage layer 11.

Referring to fig. 3 and 4, the permeable layer 11 is provided with through holes 111, the through holes 111 are vertically provided, the through holes 111 are located right above the spray heads 43, that is, the number of the through holes 111 is the same as the number of the spray heads 43, and the through holes 111 are located at the position of the permeable layer 11 near the greening area 2. A sealing cover 6 is hinged on the water seepage layer 11, the hinge shaft is horizontally arranged, the sealing cover 6 is used for plugging the through hole 111, a reset component 7 is arranged between the sealing cover 6 and the water seepage layer 11, the reset component 7 comprises a first magnet 71, a second magnet 72, a third magnet 73 and a fourth magnet 74, the first magnet 71 and the third magnet 73 are embedded and fixed on the sealing cover 6, the first magnet 71 is positioned at the circumferential side wall of the sealing cover 6, which is deviated from the hinge shaft, the second magnet 72 is embedded and fixed on the inner wall of the through hole 111, and the second magnet 72 is over against the first magnet 71 and mutually attracted under the horizontal state of the sealing cover 6; the third magnet 73 is positioned on the side wall of the sealing cover 6 facing the external environment, the fourth magnet 74 is embedded and fixed in the outer wall of the top of the water seepage layer 11, after the sealing cover 6 is opened, the fourth magnet 74 and the third magnet 73 are arranged oppositely, and the fourth magnet 74 and the third magnet 73 repel each other; the side wall of the sealing cover 6 opposite to the spray head 43 is an arc-shaped side wall, and the arc-shaped concave surface is opposite to the spray head 43; the lifting assembly 5 drives the spray head 43 to jack up the sealing cover 6, the jacking force of the magnet spray head 43 is greater than the suction force of the first magnet 71 and the second magnet 72, after the spray head 43 is reset, the repulsive force of the third magnet 73 and the fourth magnet 74 jacks up the sealing cover 6, and the first magnet 71 and the second magnet 72 are matched to enable the sealing cover 6 to be reset more easily.

Referring to fig. 3 and 5, a steering assembly 8 is arranged between the spray head 43 and the pipeline network 44, the steering assembly 8 comprises a housing 81 and a corrugated pipe 82, one end of the corrugated pipe 82 is communicated with the spray head 43, the other end of the corrugated pipe is communicated with the pipeline network 44, the housing 81 is vertically arranged, the bottom end of the housing 81 is fixedly connected with the pipeline network 44, the housing 81 is sleeved outside the corrugated pipe 82 in a sleeving manner, the top end of the housing 81 is open, a clamping groove 811 is formed in the vertical side wall of the housing 81, the top of the clamping groove 811 is opened through the top end of the housing 81, the caliber of the notch of the clamping groove 811 is small, the inner diameter of the clamping groove 811 is matched with the corrugated pipe 82, and the clamping groove 811 is used for clamping and fixing the corrugated pipe 82; the clamping grooves 811 are provided in a plurality of numbers, and the adjacent clamping grooves 811 are arranged along the circumferential outer wall of the shell 81 at equal intervals, so that the corrugated pipe 82 drives the spray heads 43 to be clamped and embedded in different directions.

Referring to fig. 3, the collecting pit 3 is last to be communicated with

inlet tube

31, and 3 one end of collecting pit and the architectural rainwater collecting pipe intercommunication in district are kept away from to inlet tube 31 for collect the rainwater at district building top, inlet tube 31 is provided with a plurality ofly in this embodiment. 3 bottoms of ponds of collecting pit are sunken formula, and 3 bottoms of ponds internal fixation of collecting pit is provided with dredge pump 32, and dredge pump 32 is located bottom of the pool minimum point department, and the intercommunication has blow off pipe 33 on the dredge pump 32, and blow off pipe 33 is kept away from dredge pump 32 one end and is run through collecting pit 3 and municipal sewer pipe network intercommunication.

Referring to fig. 3 and 6, the collecting tank 3 is communicated with an air release pipe 9, the communication position of the air release pipe 9 and the collecting tank 3 is positioned in the middle of the vertical height of the collecting tank 3 and above the liquid level in the collecting tank 3, and one end of the air release pipe 9, which is far away from the collecting tank 3, is positioned on the ground surface of the greening area 2 through the greening area 2 and is higher than the ground surface of the top surface of the greening area 2; the air release pipe 9 is hinged with a sealing door 91 at one end of the greening area 2, a filter screen 92 is fixedly arranged inside the air release pipe 9, and the filter screen 92 divides the internal channel of the air release pipe 9, so that the fluid entering the collecting tank 3 through the air release pipe 9 is filtered by the filter screen 92.

The implementation principle of the community sponge system for the residential community in the embodiment of the application is as follows: the rainwater on district roof flows into in collecting pit 3 through inlet tube 31, the rainwater that falls in activity square 1 sees through infiltration layer 11 and falls into collecting pit 3, deposit in collecting pit 3, add the sewage treatment medicament in to collecting pit 3 through gas release pipe 9, treat rainy day after, start lifting unit 5 with shower nozzle 43 jacking to infiltration layer 11 top, start spraying unit 4, the rainwater blowout of shower nozzle 43 with the collection, through turning to subassembly 8, realize that shower nozzle 43 sprays the dust fall on activity square 1, or turn to the back and spray the watering to greenery patches 2, reach the effect that promotes district rainwater resource utilization.

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: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A community sponge system for residential communities is characterized in that: including activity square (1), activity square (1) is provided with afforestation area (2) on one side, collecting pit (3) have been seted up to activity square (1) below, activity square (1) is including infiltration layer (11) and the bearer layer (12) that supplies the rainwater infiltration, bearer layer (12) are located infiltration layer (11) below and are located collecting pit (3), bearer layer (12) and collecting pit (3) fixed connection, there is the distance between bearer layer (12) and infiltration layer (11), be provided with on bearer layer (12) and supply collecting pit (3) interior rainwater to spout spraying assembly (4) to infiltration layer (11) upper surface, be provided with inlet tube (31) on collecting pit (3), inlet tube (31) one end and collecting pit (3) inside intercommunication, the other end communicates with the rainwater pipe bottom on the district building.

2. The community sponge system for residential communities as claimed in claim 1, wherein: the spraying assembly (4) comprises a water pump (41), a water supply pipe (42), spray heads (43) and a pipe network (44), wherein the pipe network (44) is arranged on the bearing layer (12) in a sliding mode, the sliding direction slides along the vertical direction, the spray heads (43) are communicated with the pipe network (44), the spray heads (43) are arranged vertically, a plurality of spray heads (43) are arranged, the water pump (41) is fixedly arranged on the bearing layer (12), one end of the water pump (41) is communicated with the pipe network (44), the other end of the water pump is communicated with the water supply pipe (42), and the water supply pipe (42) penetrates through the bearing layer (12) and is positioned below the rainwater level in the collecting pool (3); the water seepage layer (11) is provided with through holes (111), the through holes (111) are arranged along the periphery of the water seepage layer (11) near the greening area (2), and the number of the through holes (111) corresponds to the number of the spray heads (43) and is positioned right above the spray heads (43); a lifting component (5) for moving the pipeline network (44) along the vertical direction is arranged between the pipeline network (44) and the collecting tank (3).

3. A community sponge system for residential communities as claimed in claim 2, wherein: lifting unit (5) are including backup pad (51) and cylinder (52), backup pad (51) level sets up, backup pad (51) are provided with two, adjacent backup pad (51) inlay card is fixed and there is the angle between both horizontal projection, the top surface and the bottom surface of adjacent backup pad (51) all are in same horizontal plane, cylinder (52) are located backup pad (51) bottom, cylinder (52) vertical setting, cylinder (52) body one end and bearer layer (12) fixed connection, cylinder (52) piston rod one end and backup pad (51) fixed connection, backup pad (51) top surface and pipeline network (44) fixed connection.

4. A community sponge system for residential communities as claimed in claim 2, wherein: a sealing cover (6) for sealing the through hole (111) is hinged on the water seepage layer (11), the hinged shaft is horizontally arranged, a reset component (7) is arranged between the sealing cover (6) and the water seepage layer (11), the reset component (7) comprises a first magnet (71) and a second magnet (72), third magnetite (73) and fourth magnetite (74), first magnetite (71) and third magnetite (73) all with sealed lid (6) embedded fixed connection, first magnetite (71) are located sealed vertical side wall of lid (6), embedded fixed and through-hole (111) inner wall of second magnetite (72), first magnetite (71) and second magnetite (72) attract, embedded fixed in of third magnetite (73) is on sealed lateral wall that lid (6) deviates from through-hole (111), embedded fixed in of fourth magnetite (74) infiltration layer (11) top surface, after sealed lid (6) upset is opened, third magnetite (73) and fourth magnetite (74) repulsion each other.

5. A community sponge system for residential communities as claimed in claim 4, wherein: the side wall of the sealing cover (6) opposite to the spray head (43) is an arc-shaped side wall, and the arc-shaped concave surface is opposite to the spray head (43).

6. A community sponge system for residential communities as claimed in claim 2, wherein: be provided with between shower nozzle (43) and pipeline network (44) and turn to subassembly (8), turn to subassembly (8) including shell (81) and bellows (82), bellows (82) one end and shower nozzle (43) fixed connection, the other end and pipeline network (44) intercommunication, shell (81) and pipeline network (44) outer wall fixed connection, bellows (82) are located inside shell (81), shell (81) are close to shower nozzle (43) one end and have seted up draw-in groove (811), bellows (82) inlay card is in draw-in groove (811), draw-in groove (811) have been seted up a plurality ofly, draw-in groove (811) are seted up along shell (81) tip circumference interval.

7. The community sponge system for residential communities as claimed in claim 1, wherein: be provided with dredge pump (32) in collecting pit (3), dredge pump (32) are located collecting pit (3) bottom of the pool, and the intercommunication has blow off pipe (33) on dredge pump (32), and blow off pipe (33) are kept away from dredge pump (32) one end and are run through collecting pit (3) and municipal sewer pipe network intercommunication.

8. The community sponge system for residential communities as claimed in claim 7, wherein: the bottom of the collecting tank (3) is an arc-shaped bottom, the arc-shaped concave surface is arranged upwards, and the sewage pump (32) is located at the lowest position of the arc-shaped concave surface.

9. The community sponge system for residential communities as claimed in claim 1, wherein: an air release pipe (9) is arranged between the collecting tank (3) and the greening area (2), one end of the air release pipe (9) is communicated with the inside of the collecting tank (3), the other end of the air release pipe penetrates through the greening area (2) and is located on the ground surface, and the end part of the air release pipe is hinged with a sealing door (91).

10. A community sponge system for residential communities as claimed in claim 9, wherein: a filter screen (92) is fixedly arranged in the air release pipe (9), and the filter screen (92) is positioned close to the sealing door (91).