CN109914712B - Interactive Rainwater Purification, Storage and Utilization System in Residential Areas - Google Patents

Abstract

The invention provides an interactive rainwater purification, storage and utilization system in a residential area, including a falling water buffer and sewage collection device, a high-level flower bed, a permeable pavement device and a water storage tank; wherein, the permeable pavement device is used to be arranged under the ground. , the bottom end of the high-level flower bed is arranged on the top end of the permeable paving device; the top end of the reservoir is connected to the bottom end of the permeable paving device; the falling water buffer and sewage collecting device is connected to the high-level flower bed, Used for diverting rainwater to the high flower bed. The invention can be applied to small and medium-sized precipitation and heavy to heavy rain through the cooperation among the falling water buffering sewage collecting device, the high-level flower bed, the permeable paving device and the water storage tank, and can better recycle and utilize rainwater, save water, and protect water resources. Protect the environment. The invention solves the problems of using limited space to meet the needs of the construction of rainwater comprehensive management facilities and landscape facilities, as well as the purification of small and medium-sized precipitation pollution and the retention of heavy rainstorms in the renewal of old residential areas.

Description

Interactive Rainwater Purification, Storage and Utilization System in Residential Areas

technical field

The invention relates to a rainwater purification, storage and utilization system, in particular to a parent-child landscape rainwater system with interaction and popular science suitable for residential areas, belonging to the field of comprehensive utilization of rainwater.

Background technique

At present, the real estate market in first-tier cities such as Beijing, Shanghai, Guangzhou and Shenzhen has entered the era of stock housing, and the renovation of old buildings and stock improvement will become the focus and difficulty of residential construction in this context. With the introduction of policies such as "sponge city" and "beautiful home", it has become a new demand to build a comprehensive rainwater utilization system with landscape that meets the conditions for the renovation of old communities. According to the literature, in urban residential areas, more than 80% of the precipitation in a year is mainly small and medium-sized precipitation, and the concentration of pollutants carried by the rainwater in the early stage of small and medium-sized precipitation is relatively large, which is the main source of rainwater storage, purification and utilization. focus object. Preliminary purification and retention of the initial precipitation can reduce the drainage pressure of the municipal pipe network, and at the same time reduce the secondary pollution of the receiving water body after the polluted rainwater is discharged. If the three functions of rainwater storage, purification and utilization can be integrated, and this ecological infrastructure can be beautified and interacted with people, the popular science and practical value of the whole system can be increased in addition to the ecological governance function. Such a comprehensive design can make full use of the old community space, improve the aesthetics of its environment, and add the highlights of the smart community. On the basis of comprehensive management and purification of rainwater, inventing a set of ecological facilities with both landscape and interactive functions is the starting point of the present invention.

SUMMARY OF THE INVENTION

In view of the defects in the prior art, the purpose of the present invention is to provide an interactive rainwater purification, storage and utilization system in a residential area. The present invention solves the problem of using limited space to meet the needs of the construction of comprehensive rainwater management facilities and landscape facilities in the renewal of old residential areas. , as well as the purification of small and medium-sized precipitation pollution and the retention of heavy rainstorms.

According to the interactive rainwater purification, storage and utilization system in a residential area provided by the present invention, the system includes a falling water buffer and sewage collection device, a high-level flower bed, a permeable pavement device and a water storage tank;

Wherein, the permeable paving device is used to be arranged under the ground, the bottom end of the high-level flower bed is arranged at the top end of the permeable paving device; the top end of the reservoir is connected to the bottom of the permeable paving device end;

The falling water buffer and dirt collecting device is communicated with the high-level flower bed, and is used for guiding rainwater to the high-level flower bed.

Preferably, the falling water buffer sewage collecting device includes a falling water pipe, a buffer sewage collector, a first water conduit and a sewage outlet; the upper end of the falling water pipe is used for connecting the outer wall, and the lower end of the falling water pipe is connected to the buffer sewage collector. A water inlet, the sewage outlet is arranged on the bottom side of the buffer sewage collector; one end of the first water conduit is connected to the water outlet on the upper end surface of the buffer sewage collector, and the other end is connected to the high-level flower bed.

Preferably, the high-level flower bed comprises a flower bed shell, a pavement layer, a water-conveying flower tube and a second aqueduct;

The paving layer is arranged in the shell of the flower bed, and the paving layer includes a covering layer, a planting soil layer, a first coarse sand filter layer, a filler layer and a first pebble filter layer laid in sequence from top to bottom. water layer;

The water-conveying flower pipe is provided with a water leakage hole, and the water-conveying flower pipe is laid on the surface of the paving layer; the water inlet of the water-conveying flower pipe is connected to the water outlet end of the first aqueduct; the One end of the second water conduit is connected to the leak hole of the water-conveying flower tube, and the other end is connected to the first coarse sand water filtering layer through the planting soil layer.

Preferably, the permeable paving device comprises a permeable asphalt layer, a first permeable concrete layer, a second coarse sand water filter layer, a second pebble water filter layer, an anti-reverse osmosis surface layer and a second pervious concrete layer;

The water permeable paving device is vertically arranged with a water conduit pipe; a flower bed water conduit is laid in the water conduit pipe; The water outlet of the flowerbed aqueduct is connected to the reservoir.

Preferably, the reservoir includes a waterproof wall and a bottom waterproof structure;

The bottom end of the waterproof wall is arranged on the bottom waterproof structure; one side wall of the waterproof wall is provided with a water outlet, and the water outlet is used to connect the municipal pipeline network; the top surface of the reservoir is Connect the second permeable concrete layer.

Preferably, a plurality of water intake pipeline channels and a plurality of pipe body pipelines are vertically arranged in the permeable paving device; one end of the water intake pipeline channel is used to communicate with the ground, and the other end passes through the permeable paving device to connect to the Reservoir; one end of the pipe body pipe is used to communicate with the ground, and the other end is connected to the water reservoir through the permeable paving device.

Preferably, it also includes a water intake device; the water intake device includes a press pump head, a water collection chamber, a water intake pipeline, a water stop valve, a water outlet pipeline and a reverse flow valve;

The bottom end of the pressing pump head is connected to the top of the water collecting chamber; the water stop valve is arranged at the lower part of the water collecting chamber; one end of the water intake pipe passing through the water intake pipe channel is connected to the water stop valve , and the other end is connected to the water storage tank; one end of the water outlet pipe is connected to the water collection chamber and to the reverse flow valve, and the other end is used for water outlet.

Preferably, it also includes a landscape device; the landscape device includes a decoration, a pipe body and an expanded buckle;

The decoration is arranged at the top end of the pipe body; the expanded buckle is arranged at the bottom end of the pipe body; the pipe body passes through the pipe body and can float up and down with the water of the reservoir; The tube body is marked with a scale.

Preferably, the diameter of the water-conveying flower tube is 30 mm, the spacing between the leak holes is more than 150 mm, and the diameter of the leak holes is 5-15 mm.

Preferably, the thickness of the permeable asphalt layer is 30mm; the thickness of the first permeable concrete layer is 60mm, the thickness of the second coarse sand filter layer is 30mm, the thickness of the second pebble filter layer is 120mm, and the thickness of the anti-reverse osmosis surface layer is 20mm, and the thickness of the second permeable concrete layer is 60mm.

Compared with the prior art, the present invention has the following beneficial effects:

1. The present invention can be applied to small and medium-sized precipitation and heavy rain through the cooperation between the falling water buffer sewage collecting device, the high-level flower bed, the permeable paving device and the water storage tank, and can better recycle rainwater, save water, and protect water. resources, protect the ecological environment;

2. The present invention can reasonably overcome the shortcomings of insufficient space, low cost budget, imperfect waste collection facilities, low maintenance cost budget in the later period, etc. when the old residential area is renovated, and saves funds to improve the living environment;

3. The present invention does not involve complex components, does not require high construction sites, does not need to install any additional power facilities, has simple structure, reasonable layout, and is easy to popularize.

Description of drawings

Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

1 is a schematic structural diagram of an interactive rainwater purification, storage and utilization system in a residential area according to the present invention;

FIG. 2 is a schematic top view of the interactive rainwater purification, storage and utilization system in the residential area according to the present invention.

In the picture:

1 is the multi-storey building; 2 is the ground; 3 is the plant; 4 is the downpipe; 5 is the buffer collector; 6 is the first aqueduct; 7 is the sewage outlet; 8 is the flower bed shell; 9 is the water flower pipe; 10 is the covering layer; 11 is the planting soil layer; 12 is the second aqueduct; 13 is the first coarse sand filter layer; 14 is the filler layer; 15 is the first pebble filter layer; 16 is the flower bed aqueduct; 17 is 18 is the second coarse sand filter layer; 19 is the water intake pipeline channel; 20 is the second pebble water filter layer; 21 is the waterproof wall; 22 is the anti-reverse osmosis surface layer; 23 is the second permeable concrete 24 is the reservoir; 25 is the water intake pipe; 26 is the water stop valve; 27 is the pump head; 28 is the water collection chamber; 29 is the outlet pipe; 30 is the reverse flow valve; 31 is the decoration; 33 is the permeable asphalt layer; 34 is the pipe body; 35 is the expanded buckle; 36 is the administrative pipe network; 37 is the bottom waterproof structure; 38 is the decorative flower.

Detailed ways

The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

In this embodiment, FIG. 1 is a schematic structural diagram of an interactive rainwater purification, storage and utilization system in a residential area according to the present invention. As shown in FIG. 1 , the interactive rainwater purification, storage and utilization system in a residential area provided by the present invention includes falling water buffer and sewage collection. installations, raised flower beds, permeable pavement installations and reservoirs 24;

Wherein, the permeable paving device is used to be arranged under the ground, the bottom end of the high-level flower bed is arranged at the top end of the permeable paving device; the top end of the reservoir 24 is connected to the permeable paving device bottom;

The falling water buffer and dirt collecting device is communicated with the high-level flower bed, and is used for guiding rainwater to the high-level flower bed.

The falling water buffer and sewage collecting device includes a falling water pipe 4, a buffering sewage collector 5, a first water conduit 6 and a sewage outlet 7; the upper end of the falling water pipe 4 is used for connecting the outer wall, and the lower end of the falling water pipe 4 is connected to the buffer collecting The water inlet of the sewage collector 5, the sewage outlet 7 is arranged on the bottom side of the buffer sewage collector 5; one end of the first water conduit 6 is connected to the water outlet on the upper end surface of the buffer sewage collector 5, The other end is connected to the high flower bed.

In this embodiment, the buffering dirt collector 5 can buffer the impact force of the rainwater falling straight, and at the same time, it can hold large pollutants such as fallen leaves. and process.

The capacity design of the buffer collector 5 can be designed with reference to the local small and medium-sized precipitation, and the reinforcement strips are used to closely connect with the downspout 4 to prevent the rain from falling off when the impact force of the rain is too large or the rain is too heavy. Conditional can also be carried out with the end of the downspout 4 Integrated production.

The first water conduit 6 is arranged at the upper end of one side elevation of the buffer collector 5, so as to ensure that the initial rainwater is collected and precipitated in the falling water buffer collector 5 first, and after a certain amount of rainwater is collected, Only then will the overflow be carried out through the first water conduit 6 . Therefore, when receiving the rainwater collected by the downspout 4, in the face of small and medium-sized precipitation, part of the high-concentration polluted rainwater and large-volume pollutants can be retained; in the face of heavy to heavy rain, the negative impact of high-intensity rain falling on high-level flower beds can be alleviated. At the same time, the water is diverted through the aqueduct, so as to enhance the living environment of the rainwater purification plants 3 as a whole.

The high-level flower bed includes a flower bed shell 8, a paving layer, a water-conveying flower tube 9 and a second water conduit 12;

The paving layer is arranged inside the flower bed shell 8 , and the paving layer includes a covering layer 10 , a planting soil layer 11 , a first coarse sand water filtering layer 13 , and a filler layer 14 , which are laid sequentially from top to bottom. and the first pebble water filter layer 15;

The water-conveying flower pipe 9 is provided with a water leakage hole, and the water-conveying flower pipe 9 is laid on the surface of the paving layer; One end of the second aqueduct pipe 12 is connected to the leak hole of the water pipe 9 , and the other end is connected to the first coarse sand water filter layer 13 through the planting soil layer 11 .

In this embodiment, the diameter of the water-conveying flower tube 9 is 30 mm, the distance between the leak holes is more than 150 mm, and the diameter of the leak holes is 5-15 mm. The water-conveying flower tube 9 is S-shaped. The flower bed 8 can be integrally formed with a 5mm thick steel plate. The thickness of the covering layer 10 is 40-80 mm, and the thickness of the planting soil layer 11 is 150-240 mm. The thickness of the first coarse sand water filtering layer 13 is 100-150 mm, the thickness of the filler layer 14 is 200-300 mm, and the thickness of the first pebble water filtering layer 15 is 200-250 mm. The filler layer 14 can be filled with any water-permeable material, such as sand.

The permeable paving device includes a permeable asphalt layer 33, a first permeable concrete layer 17, a second coarse sand water filter layer 18, a second pebble water filter layer 20, an anti-reverse osmosis surface layer 22 and The second permeable concrete layer 23 .

In this embodiment, the thickness of the permeable asphalt layer 33 is 30 mm; the thickness of the first permeable concrete layer 17 is 30-90 mm, the thickness of the second coarse sand water filtering layer 18 is 20-40 mm, and the thickness of the second pebble water filtering layer The thickness of 20 is 120mm, the thickness of the anti-reverse osmosis surface layer 2 and the second permeable concrete layer 23 is 40-60mm.

In this modification, the permeable asphalt layer 33 is 30mm thick, and patterning can be performed on the surface; the first permeable concrete layer 17 is 60mm thick, the second coarse sand water filter layer 18 is 30mm thick, and the second pebble water filter The thickness of the layer 20 is 120mm, the thickness of the anti-reverse osmosis surface layer 22 is preferably 20mm, and the thickness of the second permeable concrete 23 is 60mm. The anti-reverse osmosis surface layer 22 is made of anti-reverse osmosis material.

In this embodiment, the first permeable concrete layer 17 and the second permeable concrete layer 23 are provided with permeable holes; the sand in the first coarse sand water filtering layer 13 and the second coarse sand water filtering layer 18 The particle size is between 0.2-0.5mm. The second pebble water filter layer 20 and the first pebble water filter layer 15 are made of pebbles.

The permeable paving device is provided with a water conduit pipe vertically; a flower bed aqueduct 16 is laid in the water conduit pipe; the water inlet of the flower bed aqueduct 16 is connected to the first pebble water filter layer at the bottom of the high flower bed 15. The water outlet of the flower bed water conduit 16 is connected to the water storage tank 24.

The reservoir 24 includes a waterproof wall 21 and a bottom waterproof structure 37;

The bottom end of the waterproof wall 21 is arranged on the bottom waterproof structure 37; one side wall of the waterproof wall 21 is provided with a water outlet, and the water outlet is used to connect the municipal pipe network pipeline 36; the water storage The top surface of the pool 24 is connected to the second permeable concrete layer 23, and the bottom waterproof structure 37 is compacted with plain soil, and the compacted plain soil is greater than or equal to 1 m.

The permeable paving device is vertically provided with a plurality of water intake pipe channels 19 and a plurality of pipe body pipes 34; one end of the water intake pipe channel 19 is used to connect the ground, and the other end passes through the permeable paving device to connect the Reservoir 24; one end of the pipe body pipe 34 is used to communicate with the ground, and the other end is connected to the reservoir 24 through the permeable pavement device.

The interactive rainwater purification, storage and utilization system in the residential area provided by the present invention further includes a water intake device; the water intake device includes a press pump head 27, a water collection chamber 28, a water intake pipe 25, a water stop valve 26, and a water outlet pipe 29. And the reverse flow valve 30;

The bottom end of the pump head 27 is connected to the top of the water collecting chamber 28 ; the water stop valve 26 is arranged at the lower part of the water collecting chamber 28 ; the water intake pipe 25 passes through one end of the water intake pipe channel 19 The water stop valve 26 is connected to the water stop valve 26, and the other end is connected to the water storage tank 24;

In this embodiment, the press pump head 27 is connected to the water collecting chamber 28 through a rubber ring, and the press pump head 27 can be pressed to take water.

In this embodiment, the ground height of the water intake device should not be designed too high, and the height should be 600-800mm suitable for children to stand and adults to squat.

The interactive rainwater purification, storage and utilization system in the residential area provided by the present invention further includes a landscape device; the landscape device includes a decoration 31 , a pipe body 32 and an expanded buckle 35 ;

The decoration 31 is arranged at the top end of the pipe body 32; the expansion buckle 35 is arranged at the bottom end of the pipe body 32; the pipe body 32 passes through the pipe body pipe 34 and can store water with the The water of the pool 24 floats up and down; the tube body 32 is marked with a scale.

In the modified example, the tube body 32 adopts a light-weight tube body. For example, a plastic tube body, the decorations 31 can be replaced with various lightweight decorative parts such as decorative flowers 38, which are used as buoyancy devices for landscaping. The lightweight tube body can be cut with different lengths, and when it floats, it will form a patchwork. landscape. Children can judge whether there is water in the reservoir according to whether the decoration 31 floats or not, and draw water by pressing the pump, and water the high-level flower bed plants during drought.

Fig. 2 is a schematic top view of the interactive rainwater purification, storage and utilization system in the residential area according to the present invention. As shown in Fig. 2, when rainfall occurs, the roof rainwater is collected by the downpipe 4 partially arranged on the outside of the building 1, and flows into the buffer sewage collector. 5, then flow into the S-shaped water-conveying flower pipe 9 laid on the surface of the high-level flower bed through the first water conduit 6, and part of the rainwater directly flows into the coarse sand filter layer 13 of the high-level flower bed by the water-conveying conduit 12 connected by the water-conveying flower pipe 9. The first water conduit 6 is arranged in the upper position of the side elevation of the buffer collector 5, so as to ensure that the initial rainwater is collected and precipitated in the buffer collector 5 first, and only after a certain amount of rainwater is collected, will it pass through the first stage. A conduit 6 is overflowing. Therefore, in the face of small and medium-sized precipitation, some high-concentration polluted rainwater and large-volume pollutants can be retained in the buffer collector 5; in the face of heavy rain, it can alleviate the negative impact of high-intensity rain on high-level flower beds, and at the same time pass The first aqueduct 6 is diverted to enhance the living environment of the rainwater purification plants 3 .

The high flower bed in the present invention is fixed on the ground 2 and can be selected according to the size of the space outside the house, such as an open cuboid of 1000mm×800mm and a height of 1200mm, the side bottom is connected to the flower bed aqueduct 16 and directly connected to the reservoir 24 internal. Rainwater enters the flower bed aqueduct 16 through the covering layer 10, the planting soil layer 11, the first coarse sand water filter layer 13, the filler layer 14, and the first pebble water filter layer 15 filled in sequence inside the high-level flower bed, and the surface of the high-level flower bed is planted with waterlogging resistance. Dry rainwater purification plant 3, you can choose to plant with cattail, horseshoe gold, variegated awn, thin awn, pampas grass, parasol grass, etc. The high-level flower bed mainly receives rainwater and natural precipitation conducted by the buffer collector 5. In the face of small and medium-sized precipitation, the rainwater can be stored and used internally and the purified rainwater can be discharged into the reservoir 24 through the flowerbed aqueduct 16; Heavy rain will overflow from the high-level flower bed. Since the outlet of the water-conveying flower pipe 9 is on the side adjacent to the permeable pavement, more rainwater will overflow to that side.

In the face of small and medium-sized precipitation, the surface rainfall will infiltrate directly through the permeable pavement without secondary pollution. Therefore, the filtration through the permeable pavement can enter the reservoir 24, and the falling water purified by the high-level flower bed will eventually enter the storage tank. Pool 24. In the face of heavy rain, the water in the reservoir 24 overflows, and more rainwater is discharged into the municipal pipe network through the pipeline 36 connected to the municipal pipe network. When there is no precipitation, check whether there is water in the reservoir 24 through the scale on the light pipe body 32 in the landscape device, and then through the water intake device, the plants in the high flower bed can be watered and recycled.

Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and those skilled in the art can make various variations or modifications within the scope of the claims, which do not affect the essential content of the present invention.

Claims (9)

1. An interactive rainwater purification, storage and utilization system for residential areas is characterized by comprising a water falling buffer sewage collecting device, a high-position flower bed, a water permeable paving device and a reservoir (24);

the water permeable paving device is arranged below the ground, and the bottom end of the high flower bed is arranged at the top end of the water permeable paving device; the top end of the water storage tank (24) is connected with the bottom end of the water permeable paving device;

the water falling buffering and sewage collecting device is communicated with the high-position flower bed and is used for guiding rainwater to the high-position flower bed;

the permeable pavement device comprises a permeable asphalt layer (33), a first permeable concrete layer (17), a second coarse sand water filtering layer (18), a second pebble water filtering layer (20), an anti-reverse-seepage surface layer (22) and a second permeable concrete layer (23) which are sequentially paved from top to bottom;

a water guide pipe pipeline is vertically arranged in the water permeable paving device; a flower bed water guide pipe (16) is laid in the water guide pipe pipeline; the water inlet of the flower bed water guide pipe (16) is communicated with the first pebble water filtering layer (15) at the bottom in the high-position flower bed, and the water outlet of the flower bed water guide pipe (16) is connected with the water storage tank (24).

2. The residential interactive rainwater purification, storage and utilization system according to claim 1, wherein the downpipe buffering and sewage collecting device comprises a downpipe (4), a buffering sewage collector (5), a first water guiding pipe (6) and a sewage outlet (7);

the upper end of the downpipe (4) is used for being connected with an outer wall, the lower end of the downpipe (4) is communicated with a water inlet of the buffering dirt collector (5), and the sewage outlet (7) is arranged on the bottom side surface of the buffering dirt collector (5); one end of the first water guide pipe (6) is communicated with a water outlet on the upper end face of the buffering dirt collector (5), and the other end of the first water guide pipe is communicated with the high-position flower bed.

3. The residential interactive rainwater purification, storage and utilization system according to claim 2, wherein the high-level flower bed comprises a flower bed shell (8), a pavement layer, a water delivery flower pipe (9) and a second water guide pipe (12);

the paving layer is arranged in the flower bed shell (8), and comprises a covering layer (10), a planting soil layer (11), a first coarse sand water filtering layer (13), a packing layer (14) and a first pebble water filtering layer (15) which are paved from top to bottom in sequence;

the water delivery floral tube (9) is provided with water leakage holes, and the water delivery floral tube (9) is laid on the surface of the pavement layer; the water inlet of the water conveying floral tube (9) is connected with the water outlet end of the first water guide tube (6); one end of the second water guide pipe (12) is communicated with the water leakage hole of the water delivery floral pipe (9), and the other end of the second water guide pipe penetrates through the planting soil layer (11) and is communicated with the first coarse sand water filtering layer (13).

4. The residential interactive rainwater purification and storage utilization system according to claim 1, wherein the reservoir (24) comprises a watertight wall (21) and a bottom watertight structure (37);

the bottom end of the waterproof wall (21) is arranged on the bottom waterproof structure (37); a water outlet is formed in the wall surface on one side of the waterproof wall (21) and is used for connecting a municipal pipe network pipeline (36); the top end surface of the water storage pool (24) is connected with the second pervious concrete layer (23).

5. The residential area interactive rainwater purification, storage and utilization system according to claim 1, wherein a plurality of water intake pipeline channels (19) and a plurality of pipe body pipelines (34) are vertically arranged in the water permeable paving device; one end of the water intake pipeline channel (19) is used for being communicated with the ground, and the other end of the water intake pipeline channel penetrates through the water permeable paving device to be connected with the water storage tank (24); one end of the pipe body pipeline (34) is used for being communicated with the ground, and the other end of the pipe body pipeline penetrates through the water permeable paving device to be connected with the water storage tank (24).

6. The residential interactive rainwater purification, storage and utilization system according to claim 5, further comprising a water intake device; the water taking device comprises a pressing pump head (27), a water collecting cavity (28), a water taking pipeline (25), a water stop valve (26), a water outlet pipeline (29) and an inverse backflow valve (30);

the bottom end of the pressing pump head (27) is connected with the top end of the water collecting cavity (28); the water stop valve (26) is arranged at the lower part of the water collecting cavity (28); one end of the water taking pipeline (25) penetrates through the water taking pipeline channel (19) to be connected with the water stop valve (26), and the other end of the water taking pipeline is connected with the water storage tank (24); one end of the water outlet pipeline (29) is connected with the water collecting cavity (28) and the anti-backflow valve (30), and the other end of the water outlet pipeline is used for water outlet.

7. The residential interactive rainwater purification, storage and utilization system according to claim 5, further comprising a landscape device; the landscape device comprises an ornament (31), a pipe body (32) and an expansion buckle (35);

the ornament (31) is arranged at the top end of the tube body (32); the expansion buckle (35) is arranged at the bottom end of the pipe body (32); the pipe body (32) penetrates through the pipe body pipeline (34) and can float up and down along with pool water of the water storage pool (24); the pipe body (32) is marked with scales.

8. The residential area interactive rainwater purification, storage and utilization system according to claim 3, wherein the diameter of the water delivery perforated pipe (9) is 30mm, the distance between the drain holes is more than 150mm, and the diameter of the drain holes is 5-15 mm.

9. The residential interactive rainwater purification, storage and utilization system according to claim 1, characterized in that said water-permeable asphalt layer (33) has a thickness of 30 mm; the thickness of the first pervious concrete layer (17) is 60mm, the thickness of the second coarse sand water filtering layer (18) is 30mm, the thickness of the second pebble water filtering layer (20) is 120mm, the thickness of the anti-reverse-seepage surface layer (22) is 20mm, and the thickness of the second pervious concrete layer (23) is 60 mm.

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