CN116180840A

CN116180840A - Rainwater collection process and system for sponge city concave greenbelt

Info

Publication number: CN116180840A
Application number: CN202310073826.XA
Authority: CN
Inventors: 赵醒; 杨文超
Original assignee: Guohe Green Material Technology Jiangsu Co ltd
Current assignee: Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-05-30
Anticipated expiration: 2043-02-07
Also published as: CN116180840B

Abstract

The invention belongs to the technical field of sponge urban rainwater collection, in particular to a sponge urban concave green land rainwater collection process and system, aiming at the problems that sediment carried by runoffs in the prior art can enter a concave reservoir together, the construction amount is large, the cost is high, and the rainwater cannot be fully utilized, the invention provides the following scheme, which comprises the following steps: the device comprises a planting layer, a lower seepage layer, a gravel layer, a deep soil layer and a lower concave reservoir which are arranged on a green land, wherein a mud blocking strip is arranged on one side of the top of the lower concave reservoir, a rainwater collecting structure for collecting seepage rainwater is arranged in the deep soil layer, the lower seepage rainwater can be easily guided into the lower concave reservoir through the cooperation of a plurality of water guide plates, and the sediment in the runoff can be filtered through a sediment collecting frame in the process of flowing into the lower concave reservoir, and in addition, the rainwater collected in the lower concave reservoir can be used for green planting irrigation and washing vehicles, so that economic benefits are generated.

Description

Rainwater collection process and system for sponge city concave greenbelt

Technical Field

The invention relates to the technical field of sponge urban rainwater collection, in particular to a sponge urban concave green land rainwater collection process and system.

Background

The urban sponge has the characteristics of absorbing water, seeping water, purifying water and storing water when raining, and the urban sponge has the characteristics of being capable of showing good elasticity like a sponge in the aspects of adapting to environmental changes, coping with natural disasters and the like when water is needed, so that surface runoff can be effectively avoided, and flood disasters caused by rainwater converging into a municipal pipe network from a hardened watertight road surface are reduced. The concave greenbelt is an important component for constructing sponge cities, and the concave greenbelt is a certain elevation lower than the surrounding ground when the greenbelt is constructed, so that the inflow of peripheral rainwater runoffs is facilitated. The concave green land has good water permeability, the construction cost is similar to that of the conventional green land, and the water for greening can be reduced and the urban environment can be improved.

However, the following disadvantages still exist in the rainwater collection process in the prior art:

although the sponge city can absorb rainwater, the surface of the ground still has runoff, when the runoff flows into the concave reservoir, the sediment carried by the runoff can enter the concave reservoir together, a large amount of sediment is accumulated in the concave reservoir for a long time, and the capacity of the concave reservoir for later water storage is seriously affected;

When rainwater is absorbed in a sponge city, the rainwater permeates downwards, for example, the utility model with the bulletin number of CN 210529817U is required to build a sedimentation tank and a water storage tank below a rubble layer, so that the construction amount of the sponge city rainwater collecting system is large, and the cost is high;

the rainwater is collected and recycled, the rainwater is single in function, the rainwater is often used for green planting irrigation, the rainwater cannot be fully utilized, and the construction cost of the rainwater collection system in the cotton city is reduced.

Aiming at the problems, the utility model provides a rainwater collection process and a system for a concave green land of a sponge city.

Disclosure of Invention

The utility model provides a rainwater collection process and system for a concave green land of a sponge city, which solve the defects that sediment carried by runoffs in the prior art can enter a concave reservoir together, the construction amount is large, the cost is high, and the rainwater cannot be fully utilized.

The utility model provides the following technical scheme:

a sponge city recessed greenbelt rainwater collection system comprising: the device comprises a planting layer, a lower seepage layer, a gravel layer, a deep soil layer and a concave reservoir, wherein the planting layer, the lower seepage layer, the gravel layer, the deep soil layer and the concave reservoir are arranged on the green land;

The sediment filtering structure is arranged in the concave reservoir and is used for filtering sediment carried in runoff;

the cyclic utilization structure is arranged in a deep soil layer, and can recycle collected rainwater.

In a possible design, the rainwater collection structure is including setting up a plurality of guide plates in deep soil layer, and the guide plate is located the left side of indent cistern, and a plurality of guide plates are from left side to right gradual downward arrangement, lie in the guide plate on right side extends to the indent cistern, adjacent two through a plurality of first connecting block fixed connection between the guide plate, the top of guide plate is equipped with a plurality of guiding channels, be equipped with the baffle in the indent cistern, the bottom fixedly connected with of baffle extends to the screen cloth in the guiding channel, and the rainwater is permeated through planting layer, infiltration layer and rubble layer below, and when continuing to permeate to deep soil layer through the rubble layer, the rainwater flows through the guide plate, gets into in the indent cistern under the guiding action of guiding channel, tentatively accomplishes the collection to infiltration rainwater, and can filter the silt in the guiding channel through the screen cloth, avoids silt entering in the indent cistern to lead to the inside volume reduction of indent cistern.

In a possible design, silt filtration includes the step board of fixed connection in the indent cistern, be equipped with a plurality of rectangular holes in the step board, be equipped with the silt in the rectangular hole and collect the frame, the top of indent cistern is equipped with detachable grid, be equipped with stretching structure in the silt collection frame, can be used for the grid to collect the frame and upwards pull, one side inner wall sliding connection of indent cistern has the fine screen board that collides with the step board, the bottom fixedly connected with of step board is to the spacing shelves of fine screen board, and the rainwater that does not ooze carries silt to drop on the step board through the grid, and the grid can screen great rubbish, and the rainwater flows on the surface of step board, and the silt that carries in the in-process rainwater that flows can be continuous deposit in a plurality of silt collection frames on the step board, and then can screen the silt in the rainwater, and the rainwater falls in the indent cistern through the fine screen board at last.

In a possible design, the tensile structure is including setting up the rotation handle that is kept away from one side inner wall each other at the sediment collection frame respectively, the outer wall cover of rotation handle is equipped with the buckle, the bottom fixed connection of rope and grid is passed through at the top of buckle, the equal fixedly connected with dog of one side inner wall that the rectangular hole kept away from each other, the equal fixedly connected with second connecting block of both sides of sediment collection frame and dog can be spacing to the second connecting block, and wherein the structure of buckle can be U type collude, spring buckle, gripper etc. do not limit here, upwards stimulate the grid, and the grid passes through the rope and drives corresponding rope and upwards moves, and then can take out the rope from step board and indent cistern, then pours out the sediment that deposits in the sediment collection frame for the nutrient soil for plant is planted and also can carry out reprocessing and be used for fine sand for the building.

In a possible design, cyclic utilization structure is including setting up the filter tank in deep soil layer, and the filter tank is located the right side of indent cistern, be linked together through the connecting pipe between filter tank and the indent cistern, the fixed cover of outer wall of connecting pipe is equipped with the solenoid valve, the top of planting the layer is equipped with second suction pump and self-service car washing cabinet, and second suction pump and self-service car washing cabinet are located the right side of indent cistern, the fixed cover of inlet of second suction pump is equipped with the second feed liquor pipe that extends to in the filter tank, the fixed cover of liquid outlet of second suction pump is equipped with the second drain pipe that is linked together with self-service car washing cabinet, fixedly connected with active carbon layer in the filter tank, and the below of active carbon feed liquor pipe, the active carbon layer is located the top of connecting pipe, opens the solenoid valve, and the rainwater in the indent cistern gets into in the filter tank, starts the second suction pump in with the filter tank through the water pump of active carbon layer filter pump in self-service car washing cabinet for the car owner carries out the car washing, and then can be used for the rainwater can be with the system of collecting and can also produce the benefit through the irrigation system that the rainwater is built simultaneously.

In a possible design, be located self-service car washer right side be equipped with the water catch bowl in the planting layer, fixedly connected with metal fence in the water catch bowl, metal fence's bottom inner wall fixedly connected with extends to the drain pipe in the infiltration layer down, the bottom fixedly connected with mud drain pipe of drain pipe, mud drain pipe's bottom is equipped with a plurality of through-holes, and the sewage that produces after the carwash passes through drain pipe and mud drain pipe and discharges into infiltration layer down, makes sewage continue to permeate downwards.

In a possible design, the first suction pump of one side inner wall fixedly connected with of indent cistern, the fixed cover of inlet of first suction pump is equipped with first feed liquor pipe, the equal fixed cover in bottom of first feed liquor pipe and second feed liquor pipe is equipped with the filter head, the fixed cover of liquid outlet of first suction pump is equipped with the first drain pipe that extends to the planting in situ, be equipped with the irrigation pipe that is linked together with first drain pipe in the planting in situ, the top of irrigation pipe is equipped with a plurality of irrigations that are used for irrigating, starts first suction pump, and first suction pump is in the water pump that advances the sediment in the indent cistern is gone into the irrigation pipe, irrigates the green planting on the planting layer through the irrigation pipe.

In one possible design, be located leftmost the top fixedly connected with stock of water guide plate, the top of stock extends to the top of planting the layer and fixedly connected with warning board, the fixed cover of outer wall of stock is equipped with the brake plate that is located planting the layer top, can play the locate action to the water guide plate through the cooperation of stock and brake plate, can avoid the water guide plate to move down under the loose circumstances of soil property.

In one possible design, another possibility, the bottom fixedly connected with drainage pipe of aqueduct, and the one end of drainage pipe extends to the left side of indent cistern and is located the top of water guide plate, and the sewage in the water catch bowl is discharged into the infiltration layer that is located the water guide plate top through aqueduct and drainage pipe, and the sewage is infiltration downwards, and the filtration of infiltration layer and metalling to sewage can be again with the water collection of washing in the indent cistern down, further accomplishes the rainwater of indent cistern, the collection ability of washing water down.

A rainwater collection process for a concave green land of a sponge city comprises the following steps:

s1, under the condition of large rainfall, rainwater permeates downwards through a planting layer, a lower seepage layer and a gravel layer, when the rainwater continuously permeates into a deep soil layer through the gravel layer, the rainwater flows through a water guide plate, enters a concave reservoir under the guiding action of a water guide groove, the collection of the permeated rainwater is primarily completed, and sediment flowing through the water guide groove can be filtered through a screen, so that the reduction of the water storage capacity in the concave reservoir caused by the fact that the sediment enters the concave reservoir is avoided;

S2, enabling rainwater which does not infiltrate to carry silt to fall on the step plate through the grille, enabling the grille to screen larger garbage, enabling the rainwater to flow on the surface of the step plate, enabling the silt carried in the rainwater to continuously precipitate in a plurality of silt collecting frames on the step plate in the flowing process, further enabling the silt in the rainwater to be screened layer by layer, enabling the rainwater to fall in the concave reservoir through the fine screening plate, enabling the fine screening plate to screen small garbage, enabling the grille to be pulled upwards when the silt in the silt collecting frames is too much, enabling the grille to drive corresponding ropes to move upwards through the ropes, further enabling the ropes to be taken out of the step plate and the concave reservoir, then pouring out the silt precipitated in the silt collecting frames for nutrient soil for plant planting, and further enabling the fine screening plate to be processed again for fine sand for construction, and enabling the garbage on the fine screening plate to be collected at the same time;

s3, when the water pump is in dry season, starting a first water pump, the first water pump pumps the water which enters the concave reservoir and is precipitated into an irrigation pipe, the irrigation pipe irrigates green plants on a planting layer, when the rainwater in the concave reservoir is excessive, an electromagnetic valve is opened, the rainwater in the concave reservoir enters a filter tank, and starting a second water pump, the second water pump pumps the water which is filtered by an active carbon layer in the filter tank into a self-service car washing cabinet for car washing by a car owner, so that the collected rainwater can be used for irrigating, and the benefits can be generated through car washing, so that the cost for building a rainwater collection system is reduced;

S4, sewage generated after car washing is discharged into the lower seepage layer through the water guide pipe and the mud drain pipe, so that the sewage continuously permeates downwards, and in another possibility, the sewage in the water collecting tank is discharged into the lower seepage layer above the water guide plate through the water guide pipe and the drain pipe, the sewage permeates downwards, and the water for car washing can be collected into the concave reservoir again through the lower seepage layer and the gravel layer for filtering the sewage, so that the rainwater and the collecting capacity of the car washing water of the concave reservoir are further completed.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.

According to the invention, a plurality of water guide plates are arranged in a deep soil layer and are gradually downwards distributed from left to right, two adjacent water guide plates are fixedly connected through a plurality of first connecting blocks, a plurality of water guide grooves are arranged at the top of each water guide plate, a baffle is arranged in each concave reservoir, a screen extending into each water guide groove is fixedly connected to the bottom of each baffle, rainwater permeates downwards through a planting layer, a lower permeable layer and a rubble layer, when the rainwater continuously permeates into the deep soil layer through the rubble layer, the rainwater flows through the water guide plates, enters into the concave reservoirs under the guiding action of the water guide grooves, the collection of the permeated rainwater is primarily completed, sediment flowing into the water guide grooves can be filtered through the screen, and the reduction of the water storage capacity in the concave reservoirs caused by the fact that the sediment enters the concave reservoirs is avoided;

According to the invention, a plurality of rectangular holes are formed in the step plate, a sediment collecting frame is arranged in the rectangular holes, a detachable grid is arranged at the top of the concave reservoir, a stretching structure is arranged in the sediment collecting frame, rainwater which does not infiltrate downwards falls on the step plate through the grid, the grid can screen larger garbage, the rainwater flows on the surface of the step plate, sediment carried in the rainwater can be continuously deposited in the sediment collecting frames on the step plate in the flowing process, sediment in the rainwater can be screened layer by layer, and finally the rainwater falls in the concave reservoir through the fine screen plate;

according to the invention, the top of the planting layer is provided with the second water suction pump and the self-service car washing cabinet, the liquid inlet of the second water suction pump is fixedly sleeved with the second liquid inlet pipe extending into the filtering tank, the liquid outlet of the second water suction pump is fixedly sleeved with the second liquid outlet pipe communicated with the self-service car washing cabinet, the filtering tank is fixedly connected with the active carbon layer, the electromagnetic valve is opened, rainwater in the concave reservoir enters the filtering tank, the second water suction pump is started, the second water suction pump pumps the water filtered by the active carbon layer in the filtering tank into the self-service car washing cabinet for car washing by a car owner, and further, the collected rainwater can be used for irrigation, and meanwhile, benefits can be generated through car washing, so that the cost for building the rainwater collecting system is reduced;

In the invention, the bottom end of the water guide pipe is fixedly connected with the drainage guide pipe, one end of the drainage guide pipe extends to the left side of the concave reservoir and is positioned above the water guide plate, sewage in the water collecting tank is discharged into the lower seepage layer positioned above the water guide plate through the water guide pipe and the drainage guide pipe, the sewage permeates downwards, and the sewage can be filtered by the lower seepage layer and the crushed stone layer to collect water for washing vehicles into the concave reservoir again, so that the collection capacity of rainwater and vehicle washing water of the concave reservoir is further completed.

According to the invention, the infiltration rainwater can be easily guided into the concave reservoir through the cooperation of the plurality of water guide plates, sediment in the runoff can be filtered through the sediment collecting frame in the process of flowing into the concave reservoir, and in addition, the rainwater collected in the concave reservoir can be used for green plant irrigation and can also be used for washing vehicles, so that economic benefits are generated, and the cost for building a rainwater collecting system is reduced.

Drawings

Fig. 1 is a schematic diagram of a front cross-sectional structure of a sponge urban concave green land rainwater collection system according to an embodiment of the present invention;

fig. 2 is a schematic view of a three-dimensional structure of a first view of a rainwater collection structure of a sponge urban concave greenbelt rainwater collection system according to an embodiment of the present invention;

Fig. 3 is a schematic view of a second perspective three-dimensional structure of a rainwater collection structure of a sponge urban concave greenbelt rainwater collection system according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a three-dimensional cross-sectional structure of a concave reservoir of a sponge urban concave greenbelt rainwater collection system according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a three-dimensional structure of a baffle and a screen of a sponge urban concave green land rainwater collection system according to an embodiment of the present invention;

fig. 6 is a schematic three-dimensional structure diagram of a step plate and a grid of a sponge urban concave green land rainwater collection system according to an embodiment of the present invention;

FIG. 7 is a schematic view of a three-dimensional cross-sectional structure of a step plate of a sponge city recessed green land rainwater collection system according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a three-dimensional cross-sectional structure of a water guide pipe and a sludge drain pipe of a sponge urban concave greenbelt rainwater collection system according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a schematic front sectional view of a rainwater collection system for a concave greenbelt of a sponge city according to a second embodiment of the present invention;

fig. 10 is a schematic diagram of a cross-sectional structure of A-A direction of a rainwater collection system for a concave greenbelt in a sponge city according to the second embodiment of the present invention.

Reference numerals:

1. planting a layer; 2. a lower seepage layer; 3. a crushed stone layer; 4. deep soil layer; 5. a concave reservoir; 6. a water guide plate; 7. a water guide groove; 8. a first connection block; 9. a baffle; 10. a screen; 11. a first water pump; 12. a first liquid inlet pipe; 13. a first liquid outlet pipe; 14. irrigation pipes; 15. an irrigation head; 16. a filtering tank; 17. a connecting pipe; 18. an electromagnetic valve; 19. an activated carbon layer; 20. a second water pump; 21. a second liquid inlet pipe; 22. a second liquid outlet pipe; 23. self-service car washing cabinet; 24. a water collection tank; 25. a metal fence; 26. a water conduit; 27. a sludge drain pipe; 28. a through hole; 29. a step plate; 30. a grille; 31. a sediment collecting frame; 32. rotating the handle; 33. a snap ring; 34. a rope; 35. a fine screen plate; 36. a stop bar; 37. a bolt; 38. a brake plate; 39. a warning board; 40. a filter head; 41. a mud blocking strip; 42. a stop block; 43. a second connection block; 44. a rectangular hole; 45. and a drainage conduit.

Description of the embodiments

Embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.

In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled" and "mounted" should be interpreted broadly, and for example, "coupled" may or may not be detachably coupled; may be directly connected or indirectly connected through an intermediate medium. In addition, "communication" may be direct communication or may be indirect communication through an intermediary. Wherein, "fixed" means that the relative positional relationship is not changed after being connected to each other. References to orientation terms, such as "inner", "outer", "top", "bottom", etc., in the embodiments of the present invention are merely to refer to the orientation of the drawings and, therefore, the use of orientation terms is intended to better and more clearly illustrate and understand the embodiments of the present invention, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the embodiments of the present invention.

In embodiments of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the embodiment of the present invention, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the invention. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

Embodiment 1 referring to fig. 1, a sponge city recessed green land rainwater collection system of the present embodiment includes: the planting layer 1, the lower osmotic layer 2, the gravel layer 3, the deep soil layer 4 and the concave reservoir 5 of setting on the greenbelt, top one side of the concave reservoir 5 is equipped with keeps off mud strip 41, is equipped with the rainwater collection structure that is used for collecting infiltration rainwater in the deep soil layer 4, and silt filtration structure sets up in the concave reservoir 5 for filter the silt that carries in the runoff, cyclic utilization structure sets up in the deep soil layer 4, can be with the rainwater reuse of collecting.

Referring to fig. 1, a first water pump 11 is fixedly connected to the inner wall of one side of a concave reservoir 5 through bolts, a first liquid inlet pipe 12 is fixedly sleeved at a liquid inlet of the first water pump 11, a filter head 40 is fixedly sleeved at the bottom ends of the first liquid inlet pipe 12 and a second liquid inlet pipe 21 through bolts, a first liquid outlet pipe 13 extending into a planting layer 1 is fixedly sleeved at a liquid outlet of the first water pump 11, an irrigation pipe 14 communicated with the first liquid outlet pipe 13 is arranged in the planting layer 1, a plurality of irrigation heads 15 used for irrigation are arranged at the top of the irrigation pipe 14, the first water pump 11 is started, and the first water pump 11 pumps water which enters the concave reservoir 5 and is precipitated into the irrigation pipe 14, so that green plants on the planting layer 1 are irrigated through the irrigation pipe 14.

Referring to fig. 2 and 3, the rainwater collection structure includes a plurality of guide plates 6 that set up in deep soil layer 4, guide plate 6 is located the left side of indent cistern 5, and a plurality of guide plates 6 are arranged downwards gradually from left to right, be located in the guide plate 6 on right side extends to indent cistern 5, pass through bolt fixed connection through a plurality of first connecting blocks 8 between two adjacent guide plates 6, the top of guide plate 6 is equipped with a plurality of guiding channels 7, be equipped with baffle 9 in the indent cistern 5, the bottom of baffle 9 is through bolt fixed connection's screen cloth 10 that extends to in the guiding channel 7, the rainwater is permeated downwards through planting layer 1, infiltration layer 2 and rubble layer 3, when continuing to permeate to deep soil layer 4 through rubble layer 3, the rainwater flows through guide plate 6, get into in indent cistern 5 under the guiding action of guiding channel 7, tentatively accomplish the collection to permeating the rainwater, and can filter the silt in through guiding channel 7, avoid silt to get into in the indent cistern 5 and lead to the inside volume reduction of indent cistern 5.

Referring to fig. 2 and 3, the top of the water guide plate 6 located at the leftmost side is fixedly connected with an anchor rod 37 through a bolt, the top end of the anchor rod 37 extends to the upper side of the planting layer 1 and is fixedly connected with a warning plate 39, a brake plate 38 located at the top of the planting layer 1 is fixedly sleeved on the outer wall of the anchor rod 37, the water guide plate 6 can be positioned through the cooperation of the anchor rod 37 and the brake plate 38, and downward movement of the water guide plate 6 under the condition of loose soil can be avoided.

Referring to fig. 6 and 7, the sediment filter structure comprises a step plate 29 fixedly connected in a concave reservoir 5 through bolts, a plurality of rectangular holes 44 are formed in the step plate 29, a sediment collecting frame 31 is arranged in the rectangular holes 44, a detachable grid 30 is arranged at the top of the concave reservoir 5, a stretching structure is arranged in the sediment collecting frame 31 and can be used for pulling the sediment collecting frame 31 upwards by the grid 30, a fine screen plate 35 which is contacted with the step plate 29 is slidably connected to one side inner wall of the concave reservoir 5, a stop bar 36 for limiting the fine screen plate 35 is fixedly connected to the bottom of the step plate 29 through bolts, non-infiltrated rainwater carries sediment and falls on the step plate 29 through the grid 30, the grid 30 can screen larger garbage, the rainwater flows on the surface of the step plate 29, and the sediment carried in the flowing process can be continuously deposited in the plurality of sediment collecting frames 31 on the step plate 29, the silt in the rainwater can be screened layer by layer, finally, the rainwater falls into the concave reservoir 5 through the fine screen plate 35, the stretching structure respectively comprises a rotating handle 32 arranged on the inner wall of one side of the silt collecting frame 31, which is far away from each other, a clamping ring 33 is sleeved on the outer wall of the rotating handle 32, the top of the clamping ring 33 is fixedly connected with the bottom of the grating 30 through a rope 34, the inner wall of one side of the rectangular hole 44, which is far away from each other, is fixedly connected with a stop block 42, the two sides of the silt collecting frame 31 are fixedly connected with a second connecting block 43, the stop block 42 can limit the second connecting block 43, the structure of the clamping ring 33 can be U-shaped hooks, spring buckles, mechanical claws and the like, the grating 30 is pulled upwards through the rope 34 to drive the corresponding rope 34 to move upwards, the rope 34 can be taken out of the step plate 29 and the concave reservoir 5, the sediment precipitated in the sediment collection frame 31 is then poured out for use in nutrient soil for plant cultivation, and may be reprocessed for construction fine sand.

Referring to fig. 1, the cyclic utilization structure is including setting up the filter tank 16 in deep soil layer 4, and filter tank 16 is located the right side of indent cistern 5, be linked together through connecting pipe 17 between filter tank 16 and the indent cistern 5, the fixed cover of outer wall of connecting pipe 17 is equipped with solenoid valve 18, the top of planting layer 1 is equipped with second suction pump 20 and self-service car washer cabinet 23, and second suction pump 20 and self-service car washer cabinet 23 are located the right side of indent cistern 5, the fixed cover of inlet of second suction pump 20 is equipped with the second feed liquor pipe 21 that extends to in the filter tank 16, the fixed cover of outlet of second suction pump 20 is equipped with the second drain pipe 22 that is linked together with self-service car washer cabinet 23, fixedly connected with active carbon layer 19 in the filter tank 16, and active carbon layer 19 is located the below of second feed liquor pipe 21, active carbon layer 19 is located the top of connecting pipe 17, open solenoid valve 18, rainwater in the indent cistern 5 gets into filter tank 16, start second suction pump 20, second suction pump 20 is with filter tank 16 in the filter car washer cabinet's the filter water washer cabinet 23 through the active carbon layer, can be used for producing the benefit through the rainwater collection system of self-service, and can also be used for the rainwater to reduce the cost of construction and the system of washing, and can be used for the system of washing and further, the system is built.

Referring to fig. 1 and 8, a water collecting tank 24 is arranged in a planting layer 1 positioned on the right side of a self-service carwash cabinet 23, a metal fence 25 is fixedly connected in the water collecting tank 24 through bolts, the inner wall of the bottom of the metal fence 25 is fixedly connected with a water guide pipe 26 extending into a lower seepage layer 2 through bolts, the bottom end of the water guide pipe 26 is fixedly connected with a mud drain pipe 27, the bottom of the mud drain pipe 27 is provided with a plurality of through holes 28, and sewage generated after carwash is discharged into the lower seepage layer 2 through the water guide pipe 26 and the mud drain pipe 27, so that the sewage continuously permeates downwards.

Embodiment 2, referring to fig. 1, a sponge city concave green land rainwater collection system of the present embodiment includes: the planting layer 1, the lower osmotic layer 2, the gravel layer 3, the deep soil layer 4 and the concave reservoir 5 of setting on the greenbelt, top one side of the concave reservoir 5 is equipped with keeps off mud strip 41, is equipped with the rainwater collection structure that is used for collecting infiltration rainwater in the deep soil layer 4, and silt filtration structure sets up in the concave reservoir 5 for filter the silt that carries in the runoff, cyclic utilization structure sets up in the deep soil layer 4, can be with the rainwater reuse of collecting.

Referring to fig. 9 and 10, in another possibility of this embodiment, the bottom end of the water guide pipe 26 is fixedly connected with a drainage pipe 45, and one end of the drainage pipe 45 extends to the left side of the concave reservoir 5 and is located above the water guide plate 6, the sewage in the water collecting tank 24 is discharged into the lower seeping layer 2 located above the water guide plate 6 through the water guide pipe 26 and the drainage pipe 45, the sewage permeates downwards, and the water for washing vehicles can be collected into the concave reservoir 5 again through the filtration of the lower seeping layer 2 and the crushed stone layer 3, so that the collection capability of the rainwater and the vehicle washing water of the concave reservoir 5 is further completed.

s1, under the condition of large rainfall, rainwater permeates downwards through a planting layer 1, a lower seepage layer 2 and a gravel layer 3, when the rainwater continuously permeates into a deep soil layer 4 through the gravel layer 3, the rainwater flows through a water guide plate 6 and enters a concave reservoir 5 under the guiding action of a water guide groove 7, the collection of the permeated rainwater is primarily completed, sediment flowing through the water guide groove 7 can be filtered through a screen 10, and the reduction of the water storage capacity in the concave reservoir 5 caused by the sediment entering the concave reservoir 5 is avoided;

S2, the rainwater which does not infiltrate falls on the step plate 29 through the grid 30, the grid 30 can screen larger garbage, the rainwater flows on the surface of the step plate 29, the sediment carried in the rainwater can be continuously deposited in a plurality of sediment collecting frames 31 on the step plate 29 in the flowing process, the sediment in the rainwater can be screened layer by layer, finally the rainwater falls in the concave reservoir 5 through the fine screen plate 35, the fine screen plate 35 screens small garbage, when the sediment in the sediment collecting frames 31 is excessive, the grid 30 is pulled upwards, the corresponding ropes 34 are driven to move upwards through the ropes 34, the ropes 34 can be taken out from the step plate 29 and the concave reservoir 5, then the sediment precipitated in the sediment collecting frames 31 is poured out for nutrient soil for plant planting, fine sand for construction can be processed again, and meanwhile, the fine screen plate 35 is taken out, and garbage on the fine screen plate 35 is collected;

s3, when the water is in dry season, starting the first water pump 11, pumping the precipitated water in the concave reservoir 5 into the irrigation pipe 14 by the first water pump 11, irrigating green plants on the planting layer 1 by the irrigation pipe 14, when the rainwater in the concave reservoir 5 is excessive, opening the electromagnetic valve 18, enabling the rainwater in the concave reservoir 5 to enter the filter tank 16, starting the second water pump 20, pumping the water filtered by the active carbon layer 19 in the filter tank 16 into the self-service car washing cabinet 23 by the second water pump 20, and using the water to wash a car by a car owner, so that the collected rainwater can be used for irrigating, and meanwhile, benefits can be generated by washing the car, and the cost for building a rainwater collection system is reduced;

S4, sewage generated after car washing is discharged into the lower seepage layer 2 through the water guide pipe 26 and the mud drain pipe 27, so that the sewage continuously permeates downwards, in addition, in the possibility of the embodiment, the sewage in the water collecting tank 24 is discharged into the lower seepage layer 2 above the water guide plate 6 through the water guide pipe 26 and the drain pipe 45, the sewage permeates downwards, and the water for car washing can be collected into the concave reservoir 5 again through the lower seepage layer 2 and the filtration of the crushed stone layer 3 to the sewage, so that the rainwater and the collection capacity of the car washing water of the concave reservoir 5 are further completed.

However, as well known to those skilled in the art, the working principles and wiring methods of the first water pump 11 and the second water pump 20 are common, and they are all conventional means or common knowledge, and will not be described herein in detail, and any choice can be made by those skilled in the art according to their needs or convenience.

The present invention is not limited to the above embodiments, and any person skilled in the art can easily think about the changes or substitutions within the technical scope of the present invention, and the changes or substitutions are intended to be covered by the scope of the present invention; embodiments of the invention and features of the embodiments may be combined with each other without conflict. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims

1. A sponge city recessed greenbelt rainwater collection system, comprising:

the device comprises a planting layer (1), a lower seepage layer (2), a gravel layer (3), a deep soil layer (4) and a concave reservoir (5) which are arranged on a green land, wherein a mud blocking strip (41) is arranged on one side of the top of the concave reservoir (5), and a rainwater collecting structure for collecting permeated rainwater is arranged in the deep soil layer (4);

the sediment filtering structure is arranged in the concave reservoir (5) and is used for filtering sediment carried in runoff;

the recycling structure is arranged in the deep soil layer (4) and can recycle the collected rainwater.

2. The sponge city concave greenbelt rainwater collection system according to claim 1, wherein the rainwater collection structure comprises a plurality of water guide plates (6) arranged in a deep soil layer (4), the water guide plates (6) are located on the left side of a concave reservoir (5), the water guide plates (6) are gradually downwards distributed from left to right, the water guide plates (6) located on the rightmost side extend into the concave reservoir (5), two adjacent water guide plates (6) are fixedly connected through a plurality of first connecting blocks (8), a plurality of water guide grooves (7) are formed in the top of each water guide plate (6), a baffle (9) is arranged in each concave reservoir (5), and a screen (10) extending into each water guide groove (7) is fixedly connected to the bottom of each baffle (9).

3. The sponge urban concave greenbelt rainwater collection system according to claim 1, wherein the sediment filter structure comprises a step plate (29) fixedly connected in a concave reservoir (5), a plurality of rectangular holes (44) are formed in the step plate (29), a sediment collection frame (31) is arranged in the rectangular holes (44), a detachable grid (30) is arranged at the top of the concave reservoir (5), a stretching structure is arranged in the sediment collection frame (31), a fine screen plate (35) in contact with the step plate (29) is slidably connected to the inner wall of one side of the concave reservoir (5), and a stop bar (36) for limiting the fine screen plate (35) is fixedly connected to the bottom of the step plate (29).

4. A sponge urban concave greenbelt rainwater collection system according to claim 3, characterized in that, the tensile structure is including setting up rotation handle (32) at sediment collection frame (31) one side inner wall that keeps away from each other respectively, the outer wall cover of rotation handle (32) is equipped with buckle ring (33), the bottom fixed connection of buckle ring (33) with grid (30) is passed through rope (34) at the top, equal fixedly connected with dog (42) of one side inner wall that rectangular hole (44) kept away from each other, both sides of sediment collection frame (31) are all fixedly connected with second connecting block (43) and dog (42) can be spacing to second connecting block (43).

5. The sponge city concave greenbelt rainwater collection system according to claim 1, wherein the recycling structure comprises a filter tank (16) arranged in a deep soil layer (4), the filter tank (16) is located on the right side of a concave reservoir (5), the filter tank (16) is communicated with the concave reservoir (5) through a connecting pipe (17), an electromagnetic valve (18) is fixedly sleeved on the outer wall of the connecting pipe (17), a second water suction pump (20) and a self-service car washing cabinet (23) are arranged at the top of the planting layer (1), the second water suction pump (20) and the self-service car washing cabinet (23) are located on the right side of the concave reservoir (5), a second liquid inlet pipe (21) extending into the filter tank (16) is fixedly sleeved on the liquid inlet of the second water suction pump (20), a second liquid outlet pipe (22) communicated with the self-service car washing cabinet (23) is fixedly sleeved on the liquid outlet of the second water suction pump (20), an active carbon layer (19) is fixedly connected in the filter tank (16), and the second water suction pump (20) and the active carbon layer (19) is located below the second liquid inlet pipe (19) and located below the active carbon layer (19).

6. The sponge city concave green land rainwater collecting system according to claim 1, wherein a water collecting tank (24) is arranged in the planting layer (1) positioned on the right side of the self-service car washing cabinet (23), a metal fence (25) is fixedly connected in the water collecting tank (24), a water guide pipe (26) extending into the lower seepage layer (2) is fixedly connected to the inner wall of the bottom of the metal fence (25), a sludge drain pipe (27) is fixedly connected to the bottom end of the water guide pipe (26), and a plurality of through holes (28) are formed in the bottom of the sludge drain pipe (27).

7. The sponge urban concave greenbelt rainwater collection system according to claim 1, wherein a first water suction pump (11) is fixedly connected to one side inner wall of the concave reservoir (5), a first liquid inlet pipe (12) is fixedly sleeved on a liquid inlet of the first water suction pump (11), filter heads (40) are fixedly sleeved on the bottom ends of the first liquid inlet pipe (12) and the second liquid inlet pipe (21), a first liquid outlet pipe (13) extending into a planting layer (1) is fixedly sleeved on a liquid outlet of the first water suction pump (11), an irrigation pipe (14) communicated with the first liquid outlet pipe (13) is arranged in the planting layer (1), and a plurality of irrigation heads (15) for irrigation are arranged at the top of the irrigation pipe (14).

8. The sponge urban concave green land rainwater collection system according to claim 2, wherein an anchor rod (37) is fixedly connected to the top of the leftmost water guide plate (6), the top end of the anchor rod (37) extends to the upper side of the planting layer (1) and is fixedly connected with a warning plate (39), and a brake plate (38) positioned at the top of the planting layer (1) is fixedly sleeved on the outer wall of the anchor rod (37).

9. A sponge urban concave greenbelt rainwater collection system according to claim 6, further characterized in that the bottom end of the water guide pipe (26) is fixedly connected with a drainage conduit (45), and one end of the drainage conduit (45) extends to the left side of the concave reservoir (5) and is located above the water guide plate (6).

10. A sponge city recessed green land rainwater collection process as claimed in any one of claims 1 to 9, comprising the steps of:

s1, under the condition of large rainfall, rainwater permeates downwards through a planting layer (1), a lower seepage layer (2) and a gravel layer (3), when the rainwater continuously permeates into a deep soil layer (4) through the gravel layer (3), the rainwater flows through a water guide plate (6), enters a concave reservoir (5) under the guiding action of a water guide groove (7), the collection of the permeated rainwater is primarily completed, and sediment flowing through the water guide groove (7) can be filtered through a screen (10), so that the sediment is prevented from entering the concave reservoir (5) to reduce the water storage capacity in the concave reservoir (5);

s2, the rainwater which does not infiltrate down carries sediment and falls on the step plate (29) through the grid (30), the grid (30) can screen larger garbage, the rainwater flows on the surface of the step plate (29), sediment carried in the rainwater in the flowing process can be continuously deposited in a plurality of sediment collecting frames (31) on the step plate (29), sediment in the rainwater can be screened layer by layer, finally the rainwater falls in a concave reservoir (5) through the fine screen plate (35), the fine screen plate (35) screens small garbage, when the sediment in the sediment collecting frames (31) is too much, when the garbage accumulated on the fine screen plate (35) is too much, the grid (30) is pulled upwards, the corresponding ropes (34) are driven by the grids (30) to move upwards, and then the sediment deposited in the collecting frames (31) can be poured out from the step plate (29) and the concave reservoir (5), the nutrition soil for plant building can be used for processing the fine screen plate (35) and the fine screen plate (35) can be used for processing the fine screen plate (35) at the same time;

S3, when the water is in dry season, starting a first water pump (11), pumping the precipitated water in a concave reservoir (5) into an irrigation pipe (14) by the first water pump (11), irrigating green plants on a planting layer (1) through the irrigation pipe (14), when excessive rainwater is in the concave reservoir (5), opening an electromagnetic valve (18), enabling the rainwater in the concave reservoir (5) to enter a filter tank (16), starting a second water pump (20), pumping the water filtered by an active carbon layer (19) in the filter tank (16) into a self-service car washing cabinet (23) by the second water pump (20), and using the water to wash a car for a car owner, so that the collected rainwater can be used for irrigating, and meanwhile, benefits can be generated through car washing, and the cost for building a rainwater collection system is reduced;

s4, sewage generated after car washing is discharged into the lower seepage layer (2) through the water guide pipe (26) and the mud drain pipe (27), so that the sewage continuously permeates downwards, and in another possibility, the sewage in the water collecting tank (24) is discharged into the lower seepage layer (2) above the water guide plate (6) through the water guide pipe (26) and the drain pipe (45), the sewage permeates downwards, and the water for car washing can be collected into the concave reservoir (5) again through the filtration of the lower seepage layer (2) and the rubble layer (3), so that the rainwater and the collection capacity of the car washing water of the concave reservoir (5) are further completed.