CN215519118U

CN215519118U - Sponge city rainwater garden

Info

Publication number: CN215519118U
Application number: CN202122025907.1U
Authority: CN
Inventors: 欧阳平; 苏婵娟; 周蜜; 金桂平
Original assignee: Chongqing Xiheng Engineering Consulting Co ltd
Current assignee: Xiheng Engineering Consulting Group Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-01-14
Anticipated expiration: 2031-08-25

Abstract

The utility model relates to a sponge city rainwater garden, it is including seting up the cistern on ground, the cistern bottom is provided with the soil horizon, the inside of soil horizon is provided with the drain pipe and the blind pipe that permeates water, the blind pipe that permeates water communicates in the drain pipe, the soil horizon includes from last to planting soil layer, gravel layer and the plain soil tamped layer of permeating water that sets gradually down, permeate and plant between soil layer and the gravel layer, between gravel layer and the gravel layer and between gravel layer and the plain soil tamped layer and all be provided with the geotechnological cloth layer that permeates water, the blind pipe that permeates water is worn to locate gravel layer or plain soil tamped layer inside. This application can improve the quality of water of the rainwater of collecting after soil infiltration.

Description

Sponge city rainwater garden

Technical Field

The application relates to the field of sponge cities, in particular to a rainwater garden for a sponge city.

Background

The sponge city refers to a city which can be like a sponge and has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like. A rainwater garden is a technical means in sponge city construction, and refers to a shallow-concave green land which is naturally formed or artificially excavated and is used for gathering and absorbing rainwater from a roof or the ground, a water permeable pipe is arranged at the lower end of the green land, the rainwater gradually permeates into soil to contain underground water through the comprehensive action of plants and sandy soil, or the rainwater is purified and flows into the water permeable pipe, and then the rainwater is supplied to city water such as landscape water, toilet water and the like through the water permeable pipe. However, when the rainwater seeps downwards, the water permeable pipe is easy to be filled and the rainwater is inconvenient to discharge in time, so that the water seepage degree of soil is influenced, and the urban waterlogging occurs.

In order to solve the above problems, chinese patent with application number CN201710831400.0 in the related art discloses an ecological rainwater garden, which has the technical points: including the land landscape part, pipe-line system and water ecosystem part, the land landscape part includes horizontal road surface, nearly way end lawn, land lawn and land landscape plant, pipe-line system includes rainwater collection pipeline and return water watering pipeline, water ecosystem part sets up in ground low-lying department, rainwater collection pipeline one end communicates in water ecosystem part, the rainwater collects the pipeline other end and communicates in the land landscape part, return water watering pipeline communicates in water ecosystem part, water ecosystem part is provided with and is used for making the rainwater towards the electronic control water pump that flows in the return water watering pipeline, water ecosystem part still communicates there is the retaining well.

During the use, the rainwater on road surface can collect the pipeline through flowing into the rainwater after near end lawn, land lawn and the filtration of terrestrial landscape plant, and the rainwater flows into water ecosystem along rainwater collection pipeline afterwards, and when the rainwater of collecting in the water ecosystem was more, the rainwater will flow into holds the well, also can take out the rainwater through the electronic control water pump simultaneously and supply urban water to make soil keep having the infiltration ability of preferred, reduce the possibility that the waterlogging appears in the city.

Aiming at the related technologies, when the rainwater collecting device is used, the rainwater purifying capacity of the near-end lawn, the land lawn and the land landscape plants is poor, so that the quality of rainwater entering the rainwater collecting pipe is relatively poor, and the rainwater collecting device is difficult to reach the urban water standard when the rainwater collecting device is used.

SUMMERY OF THE UTILITY MODEL

In order to improve the quality of water of rainwater collected after soil infiltration, the application provides a sponge urban rainwater garden.

The application provides a sponge city rainwater garden adopts following technical scheme:

the utility model provides a sponge city rainwater garden, is including seting up the cistern on ground, the cistern bottom is provided with the soil horizon, the inside of soil horizon is provided with the drain pipe and the blind pipe that permeates water, the blind pipe that permeates water communicates in the drain pipe, the soil horizon includes from last to planting soil layer, gravel layer and the plain soil tamped layer of infiltration that sets gradually down, it all is provided with the geotechnological cloth layer that permeates water to permeate water between planting soil layer and the gravel layer, between gravel layer and the gravel layer and between gravel layer and the plain soil tamped layer, the blind pipe that permeates water is worn to locate gravel layer or plain soil tamped in situ portion.

By adopting the technical scheme, the rainwater in the water storage tank can permeate into the soil layer, so that the rainwater flows through the permeable planting soil layer, the gravel layer and the gravel layer, then enters the water permeable blind pipe and is discharged by the drainage pipe; at the moment, the infiltration planting soil layer, the gravel layer and the gravel layer have the layered purification effect on the rainwater, so that the water quality of the rainwater entering the water-permeable blind pipe is improved; the geotechnique's cloth layer that permeates water can reduce and permeate planting soil layer, gravel layer and gravel layer intermix and influence the possibility of water purification effect.

Optionally, a rainwater ditch for guiding rainwater is formed in the ground, and the rainwater ditch is communicated with the reservoir.

Through adopting above-mentioned technical scheme, the rainwater ditch can be done the guide to the rainwater on ground flows into the cistern, thereby increases the collection degree of cistern to the rainwater.

Optionally, a first reinforcing layer for reducing the possibility of soil loss of the inner wall of the rainwater ditch is laid on the inner wall of the rainwater ditch.

Through adopting above-mentioned technical scheme, first back up coat can consolidate the inner wall of rainwater ditch, reduces the degree of scouring away of rainwater ditch inner wall earth to reduce soil erosion and water loss.

Optionally, be equipped with the overflow well that is used for the drainage in the cistern, the soil horizon is worn to locate by the overflow well, the well head of overflow well is higher than the cistern bottom, the drain pipe communicates inside the overflow well.

Through adopting above-mentioned technical scheme, get into the rainwater in the retaining pond when more, lead to the water level in the retaining pond to rise gradually, when the water level is higher than the well head of overflow well, the rainwater in the retaining pond can flow into in the overflow well to in time be discharged by the drain pipe, thereby reduce the rainwater in the retaining pond and cross ground, the possibility of flood appears.

Optionally, the overflow well is provided with a second reinforcing layer made of a plurality of concrete blocks paved on the inner wall of the overflow well.

Through adopting above-mentioned technical scheme, the ability that the second back up coat can increase overflow well lateral wall bearing load to reduce the possibility that the overflow well takes place to collapse, increase overflow well's life.

Optionally, a surface layer is coated on one side of the second reinforcing layer facing the central axis of the overflow well.

Through adopting above-mentioned technical scheme, the protection can be done to the concrete block of second back up coat to the rendering coat, reduces the concrete block because of receiving the rainwater impact and take place the possibility of ftractureing.

Optionally, the well lid has been closed to the well head department lid of overflow well, a plurality of overflow mouths that are used for circulating the rainwater have been seted up to the well lid.

Through adopting above-mentioned technical scheme, inside well lid and overflow mouth can blockking that the rubbish in the cistern gets into the overflow well, and then reduced overflow well or the possibility that the drain pipe blockked up appear.

Optionally, a sundries collecting box with an opening at one end is arranged inside the overflow well, the opening direction of the sundries collecting box is the same as the direction of the wellhead of the overflow well, the opening edge of the sundries collecting box is erected at the wellhead edge of the overflow well, and the bottom of the sundries collecting box is of a net structure.

Through adopting above-mentioned technical scheme, during the use, the debris collecting box can be to getting into the rainwater in the overflow well further filtering to the debris that filters off in the rainwater simultaneously store in the debris collecting box.

Optionally, the inside drive assembly that is provided with of overflow well, drive assembly includes control screw and the support frame that is used for butt debris collecting box bottom, the vertical sliding connection of support frame is in overflow well inner wall, control screw is vertical to be worn to establish and threaded connection in support frame, drive assembly still includes and is used for drive control screw pivoted driving piece, the driving piece sets up in overflow well inner wall.

Through adopting above-mentioned technical scheme, when needs take out the debris collecting box, only need order about the control screw rod through the driving piece and rotate, slide through control screw rod control support frame afterwards to release the debris collecting box from the overflow well, thereby make to take out the debris collecting box comparatively convenient.

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

rainwater in the water storage tank can permeate into the soil layer, so that the rainwater can be subjected to layered purification effect of the permeable planting soil layer, the gravel layer and the gravel layer, and the water quality of the rainwater entering the permeable blind pipe is improved; the permeable geotextile layer can reduce the possibility that the water purification effect is influenced by the mutual mixing of the permeable planting soil layer, the gravel layer and the gravel layer;

get into when the rainwater in the retaining pond is more, lead to the water level in the retaining pond to rise gradually, when the water level is higher than the well head of overflow well, rainwater in the retaining pond can flow into in the overflow well to in time be discharged by the drain pipe, thereby reduce the rainwater in the retaining pond and cross ground, the possibility of flood appears.

Drawings

FIG. 1 is a schematic cross-sectional view of embodiment 1 of the present application;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is an enlarged schematic view of portion B of FIG. 1;

FIG. 4 is an enlarged schematic view of section C of FIG. 1;

FIG. 5 is a schematic cross-sectional view of an overflow well in accordance with example 2 of the present application;

fig. 6 is an enlarged schematic view of a portion D in fig. 5.

Description of reference numerals: 1. a reservoir; 2. a soil layer; 21. infiltrating a planting soil layer; 22. a gravel layer; 23. a gravel layer; 24. a plain soil ramming layer; 25. a permeable geotextile layer; 3. a drain pipe; 31. a water-permeable blind pipe; 4. a rain gutter; 41. a first reinforcing layer; 5. an overflow well; 51. a well cover; 511. an overflow port; 6. a second reinforcing layer; 61. coating a surface layer; 62. a control slot; 621. caulking grooves; 622. a sealing plate; 623. rotating the sealing ring; 7. a sundries collecting box; 8. a drive assembly; 81. controlling the screw; 82. a support frame; 83. a drive member.

Detailed Description

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

The embodiment of the application discloses a sponge urban rainwater garden.

Example 1:

referring to fig. 1 and 2, a sponge urban rainwater garden comprises a reservoir 1 which is arranged on the ground, and a soil layer 2 is arranged at the bottom of the reservoir 1. The soil layer 2 comprises a penetration planting soil layer 21, a gravel layer 22, a gravel layer 23 and a plain soil tamping layer 24 which are arranged in sequence from top to bottom.

Referring to fig. 1 and 2, a permeable geotextile layer 25 is arranged between the permeable planting soil layer 21 and the gravel layer 22, between the gravel layer 22 and the gravel layer 23, and between the gravel layer 23 and the plain soil compacting layer 24. Soil horizon 2 inside is provided with drain pipe 3 and the blind pipe 31 that permeates water, and the blind pipe 31 that permeates water is the tubulose and has a plurality of holes of permeating water, and in this embodiment, the blind pipe 31 outside cladding that permeates water has geotechnological cloth. The water-permeable blind pipe 31 is communicated with the water discharge pipe 3, the water-permeable blind pipe 31 is arranged in the gravel layer 23 in a penetrating way, and in other embodiments, the water-permeable blind pipe 31 can also be arranged in the rammed earth layer 24 in a penetrating way.

During the use, the rainwater in the cistern 1 can permeate into soil horizon 2 for the rainwater flows through behind infiltration planting soil layer 21, gravel layer 22 and gravel layer 23 and gets into the blind pipe 31 that permeates water, is discharged by drain pipe 3 afterwards. At this time, the infiltration planting soil layer 21, the gravel layer 22 and the gravel layer 23 have a layered purification effect on the rainwater, so that the quality of the rainwater entering the water-permeable blind pipe 31 is improved. The permeable geotextile layer 25 can increase the stability of the permeable planting soil layer 21, the gravel layer 22 and the gravel layer 23, and reduce the possibility that the permeable planting soil layer 21, the gravel layer 22 and the gravel layer 23 are mutually fused to influence the water purification effect.

Referring to fig. 3, a rain ditch 4 is formed on the ground, and the rain ditch 4 is communicated with the water reservoir 1. The rainwater ditch 4 can be guided to the rainwater on ground, and the rainwater on ground of being convenient for flows into cistern 1 to increase the collection degree of cistern 1 to the rainwater.

One end of the storm drain 4 near the reservoir 1 is provided with a first reinforcing layer 41, and in this embodiment, the first reinforcing layer 41 is made of cobblestones fully paved on the inner wall of the storm drain 4. In other embodiments, the first reinforcing layer 41 may be made of cement mortar applied to the inner wall of the storm drain 4. First back up coat 41 can consolidate the inner wall of rainwater ditch 4, reduces the degree of scouring of 4 inner wall earth of rainwater ditch to reduce soil erosion and water loss.

Referring to fig. 4, an overflow well 5 is vertically arranged in the reservoir 1, and the overflow well 5 simultaneously penetrates through the permeable planting soil layer 21, the gravel layer 22 and the gravel layer 23. In this embodiment, the water-permeable blind pipe 31 is communicated with the overflow well 5, and the drain pipe 3 is communicated with the overflow well 5, so that the water-permeable blind pipe 31 is communicated with the drain pipe 3 through the overflow well 5.

The well head of the overflow well 5 is higher than the bottom of the water storage tank 1, so that the water storage tank 1 can store part of rainwater, the use is convenient, or the ornamental effect is increased.

Well lid 51 has been closed in the well head department lid of overflow well 5, and well lid 51's one end border articulates in overflow well 5's well head border, and a plurality of overflow mouth 511 have been seted up to well lid 51. Of course, in other embodiments, the manhole cover 51 may be fixed and covered on the wellhead of the overflow well 5 by bolts.

When the rainwater that gets into in the cistern 1 is more, lead to the water level in the cistern 1 to rise gradually, when the water level is higher than the well head of overflow well 5, the rainwater in the cistern 1 can flow into in the overflow well 5 to in time be discharged by drain pipe 3, thereby reduce the rainwater in the cistern 1 and cross ground, the possibility of flood appears. The well cover 51 and the overflow opening 511 can prevent the garbage in the reservoir 1 from entering the overflow well 5, thereby reducing the possibility of blockage of the overflow well 5 or the drain pipe 3.

Referring to fig. 4, the overflow well 5 is provided with a second reinforcing layer 6, and the second reinforcing layer 6 is made of a plurality of concrete blocks laid on the inner wall of the overflow well 5. In the embodiment, cement mortar pointing is adopted among the concrete blocks.

The surface of the second reinforcing layer 6 on the side facing the central axis of the overflow well 5 is coated with a rendering layer 61, in this embodiment, the rendering layer 61 is made of cement mortar. In other embodiments, the finishing layer 61 may also be made of waterproof mortar.

The second reinforcing layer 6 can increase the load bearing capacity of the side wall of the overflow well 5, thereby reducing the possibility of collapse of the overflow well 5 and increasing the service life of the overflow well 5. Simultaneously, the protection can be made to the concrete block of second back up coat 6 to plastering layer 61, reduces the concrete block because of receiving the rainwater impact and taking place the possibility of ftractureing.

The implementation principle of the embodiment 1 is as follows: in use, rainwater in the reservoir 1 can penetrate into the soil layer 2, so that the rainwater flows through the permeable planting soil layer 21, the gravel layer 22 and the gravel layer 23 and then enters the permeable blind pipe 31, then flows through the overflow well 5 and is discharged through the drain pipe 3. So that the infiltration planting soil layer 21, the gravel layer 22 and the gravel layer 23 have the layered purification effect on the rainwater, thereby improving the quality of the rainwater entering the water-permeable blind pipe 31.

When the rainwater that gets into in the cistern 1 is more, lead to the water level in the cistern 1 to rise gradually, when the water level is higher than the well head of overflow well 5, the rainwater in the cistern 1 can flow into in the overflow well 5 to in time be discharged by drain pipe 3, thereby reduce the rainwater in the cistern 1 and cross ground, the possibility of flood appears.

Example 2:

referring to fig. 5, the present embodiment is different from embodiment 1 in that a sundries collecting box 7 is disposed inside the overflow well 5, the sundries collecting box 7 is disposed with an opening at one end, the opening direction of the sundries collecting box 7 is the same as the direction of the well mouth of the overflow well 5, and the bottom of the sundries collecting box 7 is formed into a net structure.

The opening edge of the sundries collecting box 7 is bent towards the direction far away from the central axis of the sundries collecting box 7, and the bent part of the opening edge of the sundries collecting box 7 is erected at the edge of the wellhead of the overflow well 5.

Referring to fig. 5 and 6, the inner wall of the second reinforcing layer 6 is provided with a control groove 62, and the control groove 62 extends vertically. The driving assembly 8 is arranged in the overflow well 5, and the driving assembly 8 comprises a control screw 81, a supporting frame 82 and a driving piece 83.

In this embodiment, the driving member 83 is a driving motor capable of being remotely controlled, the bottom wall of the control slot 62 is provided with a caulking groove 621, and the driving member 83 is located inside the caulking groove 621. The control screw 81 vertically penetrates through the control groove 62, and the control screw 81 is coaxially and fixedly connected to the output end of the driving member 83.

Referring to fig. 5 and 6, a sealing plate 622 is covered at an opening of the caulking groove 621, the control screw 81 penetrates and is rotatably connected to the sealing plate 622, the control screw 81 is sleeved and rotatably connected with a rotary sealing ring 623, and the rotary sealing ring 623 is fixedly connected to the sealing plate 622. The sealing plate 622 and the rotary seal ring 623 can seal the caulking groove 621, so that the possibility that rainwater enters the caulking groove 621 to interfere with the driving member 83 in use is reduced.

The supporting frame 82 is clamped and slidably connected inside the control groove 62, the control screw 81 is penetrated and threaded connected to the supporting frame 82, and the supporting frame 82 can abut against the bottom of the sundries collecting box 7.

The implementation principle of the embodiment 2 is as follows: during the use, debris collecting box 7 can be further filtered the rainwater that gets into in the overflow well 5 to simultaneously store the debris of straining in the rainwater in debris collecting box 7.

When the sundries collecting box 7 needs to be taken out, the well cover 51 only needs to be opened, then the driving piece 83 is opened, the driving piece 83 can drive the control screw 81 to rotate, then the supporting frame 82 is controlled by the control screw 81 to control the groove 62 to slide upwards, and the sundries collecting box 7 is pushed out from the overflow well 5, so that the sundries collecting box 7 can be taken out conveniently.

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

Claims

1. The utility model provides a sponge city rainwater garden, is including offering cistern (1) on ground, cistern (1) bottom is provided with soil horizon (2), its characterized in that: the inside of soil horizon (2) is provided with drain pipe (3) and blind pipe (31) permeates water, the blind pipe (31) that permeates water communicates in drain pipe (3), soil horizon (2) include from last to planting soil horizon (21), gravel layer (22), gravel layer (23) and plain soil tamp layer (24) of infiltration that set gradually down, it all is provided with geotechnological cloth layer (25) that permeates water between soil horizon (21) and gravel layer (22), between gravel layer (22) and gravel layer (23) and between gravel layer (23) and plain soil tamp layer (24) to permeate water, it wears to locate inside gravel layer (23) or plain soil tamp layer (24) to permeate water blind pipe (31).

2. A sponge urban rainwater garden according to claim 1, characterized in that: a rainwater ditch (4) for guiding rainwater is formed in the ground, and the rainwater ditch (4) is communicated with the water storage tank (1).

3. A sponge urban rainwater garden according to claim 2, characterized in that: the inner wall of the rainwater ditch (4) is paved with a first reinforcing layer (41) for reducing the possibility of soil loss of the inner wall of the rainwater ditch (4).

4. A sponge urban rainwater garden according to claim 1, characterized in that: be equipped with overflow well (5) that are used for the drainage in cistern (1), soil horizon (2) are worn to locate in overflow well (5), the well head of overflow well (5) is higher than cistern (1) bottom, drain pipe (3) communicate inside overflow well (5).

5. A sponge urban rainwater garden according to claim 4, characterized in that: the overflow well (5) is provided with a second reinforcing layer (6) which is made of a plurality of concrete blocks paved on the inner wall of the overflow well (5).

6. A sponge urban rainwater garden according to claim 5, characterized in that: the side, facing the central axis of the overflow well (5), of the second reinforcing layer (6) is coated with a rendering coat (61).

7. A sponge urban rainwater garden according to claim 4, characterized in that: well lid (51) have been closed in the well head department of overflow well (5), a plurality of overflow mouths (511) that are used for circulating the rainwater have been seted up in well lid (51).

8. A sponge urban rainwater garden according to claim 4, characterized in that: the novel overflow well is characterized in that a sundry collecting box (7) with an open end is arranged inside the overflow well (5), the opening direction of the sundry collecting box (7) is the same as the direction of a well mouth of the overflow well (5), the opening edge of the sundry collecting box (7) is erected at the edge of the well mouth of the overflow well (5), and the bottom of the sundry collecting box (7) is of a net structure.

9. A sponge urban rainwater garden according to claim 8, characterized in that: the inside drive assembly (8) that is provided with of overflow well (5), drive assembly (8) include control screw (81) and be used for support frame (82) of butt debris collecting box (7) bottom, support frame (82) vertical sliding connection in overflow well (5) inner wall, vertical wear to establish and threaded connection in support frame (82) of control screw (81), drive assembly (8) are still including being used for drive control screw (81) pivoted driving piece (83), driving piece (83) set up in overflow well (5) inner wall.