CN210432475U - Rainwater garden - Google Patents
Rainwater garden Download PDFInfo
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- CN210432475U CN210432475U CN201921204950.0U CN201921204950U CN210432475U CN 210432475 U CN210432475 U CN 210432475U CN 201921204950 U CN201921204950 U CN 201921204950U CN 210432475 U CN210432475 U CN 210432475U
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Abstract
The utility model discloses a rainwater garden, which comprises landscape plants, a water storage layer, a planting soil layer, a zeolite coarse sand material mixing layer, a permeable geotextile layer and a gravel layer which are arranged from top to bottom in sequence, wherein a rainwater drainage pipe is arranged in the gravel layer, the rainwater drainage pipe is communicated with an opening blind pipe, the top and the side of the opening blind pipe are provided with through holes, and the outer side and the inlet end of the opening blind pipe are both wrapped with the permeable geotextile; the rainwater drainage pipe is upwards communicated with an overflow pipe, the top end of the overflow pipe is provided with an overflow port, a support net is arranged above the overflow port, and a pebble layer is arranged on the support net. When the precipitation is too much, the purification speed of the planting soil layer, the zeolite coarse sand material mixing layer, the permeable geotextile layer and the gravel layer to the rainwater is difficult to offset the precipitation, so the precipitation and the water accumulated in the water garden can be gradually increased, and after the horizontal plane is higher than the overflow port, the rainwater can directly enter the rainwater drainage pipe from the overflow port, so that the flood disaster caused by a large amount of water continuing to flow into the water garden or the periphery is avoided.
Description
Technical Field
The utility model relates to a municipal works technical field, concretely relates to rainwater garden.
Background
The rainwater garden is generally referred to as a shallow-concave greenbelt, is used for gathering and absorbing rainwater from a roof or the ground, purifies the rainwater through the combined action of plants and sandy soil, gradually infiltrates into the soil, and contains underground water, so that the rainwater garden is an ecologically sustainable rainwater flood control and rainwater utilization facility.
In order to improve the utilization rate of rainwater, the naturally formed rainwater garden has limited capacity, so that an artificial rainwater garden which can collect rainwater and use the rainwater for municipal water and can play a certain flood control role is particularly necessary.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rainwater garden solves and only can be used for the supply groundwater after the rainwater is collected to the rainwater garden that forms naturally, and rainwater infiltration easily leads to flood disasters' problem slowly when the precipitation is too big.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a rainwater garden comprises landscape plants, a water storage layer, a planting soil layer, a zeolite coarse sand material mixing layer, a water permeable geotextile layer and a gravel layer which are sequentially arranged from top to bottom, wherein a rainwater drainage pipe is arranged in the gravel layer, the rainwater drainage pipe is communicated with an opening blind pipe, through holes are formed in the top and the side of the opening blind pipe, and the outer side and the inlet end of the opening blind pipe are wrapped with the water permeable geotextile;
the rainwater drainage pipe is upwards communicated with an overflow pipe, an energy dissipation piece is arranged in the overflow pipe, one end of the energy dissipation piece is fixed on the inner wall of the rainwater drainage pipe, the other end of the energy dissipation piece gradually inclines downwards, an overflow port is formed in the top end of the overflow pipe, the overflow port is 8-15cm higher than the water storage layer, a support net is arranged above the overflow port, and a pebble layer is arranged on the support net.
Preferably, the water storage layer, the planting soil layer, the broken stone coarse sand material mixing layer, the permeable geotextile layer and the broken stone layer are arranged in a wave shape.
Preferably, a fixed cylinder enclosed by a screen is coaxially arranged above the overflow port, and the overflow port is positioned in the fixed cylinder.
Preferably, the energy dissipation sheet is an elastic plastic sheet.
Preferably, the height of the periphery of the planting soil layer is gradually increased along the direction towards the edge, and the highest point of the planting soil layer is higher than the upper surface of the aquifer.
Preferably, the height of the overflow port (overflow port) is higher than the upper surface of the aquifer and lower than the hardened ground.
Compared with the prior art, the beneficial effects of the utility model are one of following at least:
the rainwater garden in this application is from last to having set gradually the reservoir bed that is used for collecting and keeping in the rainwater down, be used for the crop growth, and carry out prefilter's planting soil layer to the rainwater, be used for filtering the rainwater, and be favorable to the zeolite coarse sand bed of mixture of microorganism growth, be used for keeping apart planting soil, prevent the geotechnological cloth layer that permeates water of medium soil loss, filter the rainwater, reduce the metalling of rainwater drain pipe jam, the rainwater can satisfy the needs of municipal water basically after reacing the metalling, consequently collect by the rainwater drain pipe through the opening blind pipe, detect and utilize as municipal water after qualified.
When the rainfall is too much, the rainwater purification speed of the planting soil layer, the zeolite coarse sand material mixing layer, the permeable geotextile layer and the gravel layer is difficult to offset the rainfall, so that the rainwater accumulated in the rainwater garden can be gradually increased, and after the horizontal plane is higher than the overflow port, the rainwater can directly enter the rainwater drainage pipe from the overflow port, so that the rainwater garden or the periphery can be prevented from continuing a large amount of water to cause flood disasters.
Drawings
Fig. 1 is a schematic structural view of the rainwater garden of the present invention.
Fig. 2 is a schematic view of the internal structure of the overflow pipe of the present invention.
Wherein, 1-water storage layer; 2-planting soil layer; 3-zeolite coarse sand material mixing layer; 4-a crushed stone layer; 5-a rainwater drain pipe; 6-overflow pipe; 7-energy dissipation pieces; 8-open blind pipe; 10-a fixed cylinder; 11-pebble bed.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
the embodiment provides a rainwater garden, which comprises landscape plants, a water storage layer 1, a planting soil layer 2, a zeolite coarse sand material mixing layer 3, a permeable geotextile layer and a gravel layer 4 which are sequentially arranged from top to bottom as shown in fig. 1-2, wherein a rainwater drainage pipe 5 is arranged in the gravel layer 4, the rainwater drainage pipe 5 is communicated with an opening blind pipe 8, the top and the side of the opening blind pipe 8 are provided with through holes, and the outer side and the inlet end of the opening blind pipe 8 are wrapped with the permeable geotextile;
the rainwater drainage pipe 5 is upwards communicated with an overflow pipe 6, an energy dissipation piece 7 is arranged in the overflow pipe 6, one end of the energy dissipation piece 7 is fixed on the inner wall of the rainwater drainage pipe 5, the other end of the energy dissipation piece gradually inclines downwards, an overflow port is arranged at the top end of the overflow pipe 6, the overflow port is 18-15cm higher than the aquifer, a support net is arranged above the overflow port, and a pebble layer 11 is arranged on the support net.
The rainwater garden in this embodiment has set gradually the reservoir bed that is used for collecting and keeping in the rainwater from last to down for crop growth, and carry out prefilter's planting soil layer to the rainwater, be used for filtering the rainwater, and be favorable to the zeolite coarse sand bed of mixture of microorganism growth, be used for keeping apart planting soil, prevent the geotechnological cloth layer that permeates water that medium soil runs off, filter the rainwater, reduce the metalling of rainwater drain pipe jam, the rainwater can satisfy the needs of municipal water basically after reacing the metalling, consequently collect by the rainwater drain pipe through the opening blind pipe, detect and utilize as municipal water after qualified.
When the rainfall is too much, the rainwater purification speed of the planting soil layer, the zeolite coarse sand material mixing layer, the permeable geotextile layer and the gravel layer is difficult to offset the rainfall, so that the rainwater accumulated in the rainwater garden can be gradually increased, and after the horizontal plane is higher than the overflow port, the rainwater can directly enter the rainwater drainage pipe from the overflow port, so that the rainwater garden or the periphery can be prevented from continuing a large amount of water to cause flood disasters. In order to avoid plant leaves, garbage or other sundries from entering the rainwater drainage pipe and influencing the treatment of the later-stage water body, the pebble layer is arranged at the overflow port, so that the flowerpot is attractive and plays a role in filtering. The overflow mouth is higher than the aquifer for the water that gets into from the overflow mouth is the upper strata and deposits the water that impurity is less relatively, also plays prefiltration's effect.
The planting soil used in the method is improved planting soil, namely coconut chaff, humus and the like are added into conventional planting soil, so that certain nutrient components are provided for growth of landscape plants, and the filtering effect on water is improved.
In the embodiment, the zeolite coarse sand material mixing layer is additionally arranged between the planting soil layer and the permeable geotextile layer, the preferable thickness is 10-20cm, on one hand, the filtering effect on rainwater is increased, on the other hand, the zeolite and coarse sand material mixing layer is beneficial to the implantation of microorganisms, the number and the types of beneficial microorganisms can be increased, and the promotion effect on the filtration of a water body and the growth of landscape plants is realized.
When precipitation is great, the rainwater velocity of flow is fast, and in addition have certain difference in height from the in-process that the overflow pipe got into the rainwater drain pipe, huge velocity of flow can bring very big impact to the rainwater drain pipe, consequently for reducing the rainwater velocity of flow, sets up the efficiency piece.
Example 2:
this embodiment further defines, on the basis of embodiment 1: the water storage layer 1, the planting soil layer 2, the broken stone coarse sand material mixing layer, the permeable geotextile layer and the broken stone layer 4 are all arranged in a wave shape, so that the surface area is increased, and the purification speed of the water body is increased.
Example 3:
this embodiment further defines, on the basis of embodiment 2: the overflow port is coaxially provided with a fixed cylinder 10 defined by a screen, the overflow port is positioned in the fixed cylinder 10, and under the condition that the water outlet of the overflow port is not influenced, larger objects are prevented from entering the overflow pipe 6 from the overflow port, so that the overflow pipe 6 is prevented from being blocked, and the purification pressure of pebbles is shared.
Example 4:
this embodiment further defines, on the basis of embodiment 3: the energy dissipation sheet 7 is an elastic plastic sheet, and has good corrosion prevention effect and long service life.
Example 5:
this example further defines, on the basis of example 5: the height of the periphery of the planting soil layer 2 is gradually increased along the direction towards the edge, and the highest point of the planting soil layer is higher than the upper surface of the water storage layer 1.
The planting soil layer 2 forms a groove for bearing the water storage layer 1, and the height of the biological filter medium coating can be set according to the water demand of actual needs.
Example 6:
this embodiment further defines, on the basis of embodiment 6: the height of the overflow port is higher than the height of the upper surface of the water storage layer 1 and lower than the height of the hardened ground.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (6)
1. A storm water garden, comprising: the water-permeable soil-engineering-layer-soil-block-type artificial wetland comprises landscape plants, a water storage layer (1), a planting soil layer (2), a zeolite coarse sand material mixing layer (3), a water-permeable soil-engineering-fabric layer and a gravel layer (4) which are sequentially arranged from top to bottom, wherein a rainwater drainage pipe (5) is arranged in the gravel layer (4), an opening blind pipe (8) is communicated with the rainwater drainage pipe (5), through holes are formed in the top and the side face of the opening blind pipe (8), and the outer side and the inlet end of the opening blind pipe (8) are wrapped with the water;
the rainwater drainage pipe (5) is upwards communicated with an overflow pipe (6), an energy dissipation piece (7) is arranged in the overflow pipe (6), one end of the energy dissipation piece (7) is fixed on the inner wall of the rainwater drainage pipe (5), the other end of the energy dissipation piece gradually inclines downwards, an overflow port is arranged at the top end of the overflow pipe (6), the overflow port is 8-15cm higher than the water storage layer (1), a supporting net is arranged above the overflow port, and a pebble layer (11) is arranged on the supporting net.
2. A rainwater garden according to claim 1, characterised in that the aquifer (1), planting soil (2), rubble and grit mixture layer, permeable geotextile layer and gravel layer (4) are all in a wave shape.
3. A stormwater garden as claimed in claim 1, wherein a screen-bound stationary drum (10) is coaxially arranged above the overflow, the overflow being located in the stationary drum (10).
4. A rainwater garden according to claim 1, characterised in that the energy dissipator (7) is a thin sheet of resilient plastics.
5. A stormwater garden as claimed in claim 1, wherein the planting soil layer (2) is at its periphery gradually increasing in height in the direction towards the edge and at its highest point above the upper surface of the aquifer (1).
6. A stormwater garden as claimed in claim 1, wherein the overflow opening is at a height above the upper surface of the aquifer (1) and below the hardened ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921204950.0U CN210432475U (en) | 2019-07-29 | 2019-07-29 | Rainwater garden |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921204950.0U CN210432475U (en) | 2019-07-29 | 2019-07-29 | Rainwater garden |
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| Publication Number | Publication Date |
|---|---|
| CN210432475U true CN210432475U (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921204950.0U Active CN210432475U (en) | 2019-07-29 | 2019-07-29 | Rainwater garden |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117534199A (en) * | 2024-01-09 | 2024-02-09 | 西华大学 | Biological retention filler, preparation method thereof and biological retention facility |
-
2019
- 2019-07-29 CN CN201921204950.0U patent/CN210432475U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117534199A (en) * | 2024-01-09 | 2024-02-09 | 西华大学 | Biological retention filler, preparation method thereof and biological retention facility |
| CN117534199B (en) * | 2024-01-09 | 2024-03-26 | 西华大学 | Biological retention filler, preparation method thereof and biological retention facility |
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