CN209873808U - Rainwater garden with water filtering function - Google Patents

Rainwater garden with water filtering function Download PDF

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Publication number
CN209873808U
CN209873808U CN201920440520.2U CN201920440520U CN209873808U CN 209873808 U CN209873808 U CN 209873808U CN 201920440520 U CN201920440520 U CN 201920440520U CN 209873808 U CN209873808 U CN 209873808U
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China
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layer
rainwater
well
water
overflow well
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CN201920440520.2U
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Chinese (zh)
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刘琴琴
明春
刘婷婷
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Sichuan University Engineering Design Research Institute Co Ltd
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Sichuan University Engineering Design Research Institute Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108Rainwater harvesting

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Abstract

The utility model relates to a rainwater garden with drainage function belongs to the environmental engineering technique. Including the foundation ditch, the foundation ditch is inside by lower supreme plain soil tamp layer of laying in proper order, sand layer, gravel drainage blanket, plant soil layer and water-storage layer, plant soil layer and gravel drainage blanket have laid the filter layer between the layer, the filter layer includes well sand filter layer and filter medium layer, well sand filter layer lays in the bottom of planting soil layer, filter medium layer lays in the top of gravel drainage blanket, one side of foundation ditch is provided with the spillway well, the top and the external intercommunication of spillway well, the embedded water collecting blind pipe that is equipped with in gravel drainage blanket, water collecting blind pipe and spillway well intercommunication, the spillway well intercommunication has the rainwater connecting pipe, the rainwater connecting pipe is kept away from the one end intercommunication of spillway well and. Rainwater can be filtered by using the rainwater garden.

Description

Rainwater garden with water filtering function
Technical Field
The utility model relates to an environmental engineering technical field especially relates to a rainwater garden with drainage function.
Background
The rainwater garden is a naturally formed or artificially excavated shallow-recessed green land, and is used for gathering and absorbing rainwater from a roof or the ground, purifying the rainwater through the combined action of plants and sand, gradually infiltrating the rainwater into soil, conserving underground water, or supplementing urban water such as landscape water and toilet water. Is an ecologically sustainable rain flood control and rain water utilization facility. In the existing rainwater garden, water is drained into a rainwater well after penetrating through soil in the rainwater garden, and generally rainwater directly penetrates and contains impurities inside, so that the water in the rainwater well cannot be directly used for washing hands, clothes and the like of residents in daily life, and a large amount of time and labor are consumed for filtering the water in the rainwater well again.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rainwater garden with drainage function has the advantage of filtering the rainwater.
The above object of the present invention can be achieved by the following technical solutions:
the utility model provides a rainwater garden with drainage function, includes the foundation ditch, inside by lower supreme plain soil tamp layer, sand layer, gravel drainage blanket, planting soil layer and the reservoir of laying in proper order of foundation ditch, plant the filter layer of having laid between soil layer and the gravel drainage blanket, the filter layer includes well sand filter layer and filtering medium layer, well sand filter layer lays in the bottom of planting the soil layer, filtering medium layer lays in the top of gravel drainage blanket, one side of foundation ditch is provided with the spillway well, the top and the external intercommunication of spillway well, the embedded water collecting blind pipe that is equipped with of gravel drainage blanket, water collecting blind pipe and spillway well intercommunication, the spillway well intercommunication has the rainwater connecting pipe, the one end intercommunication that the spillway well was kept away from to the rainwater connecting pipe has the rainwater well.
By implementing the technical scheme, rainwater falls into a foundation pit and permeates into a planting soil layer through a water storage layer, impurities with larger volume in the rainwater are filtered by a medium sand filter layer, the rainwater containing sandy soil passes through a filter medium layer and is filtered by a filter medium layer to remove impurities with smaller volume, clean rainwater is discharged into a gravel drainage layer and is discharged into a water collecting blind pipe, and the rainwater entering the water collecting blind pipe enters an overflow well; when excessive rainwater is accumulated on the surface of the water storage layer, the redundant rainwater flows into the overflow well; rainwater entering the overflow well enters the rainwater well through the transmission of the rainwater connecting pipe. Through the infiltration and the filtration of above-mentioned rainwater, can filter the impurity in the rainwater.
Furthermore, the water collecting blind pipe is communicated with the bottom of the overflow well, and the communicated position of the rainwater connecting pipe and the overflow well is opposite to the planting soil layer.
Implement above-mentioned technical scheme, because rainwater connecting pipe and overflow well intercommunication, overflow well and foundation ditch pass through the blind pipe intercommunication that catchments, then when the water level in the overflow well, the water level in the foundation ditch, the water level of rainwater connecting pipe are in same height, the rainwater could get into in the rainwater well, through the position of the intercommunication department of rainwater connecting pipe and overflow well and the relative setting of planting soil layer, can be so that to plant the soil in-situ and keep the state of water all the time, and then make the vegetation can be all the time with water contact.
Furthermore, the height of the communicated part of the rainwater connecting pipe and the overflow well is higher than the top end of the middle sand filtering layer and lower than the height of one half of the planting soil layer.
By implementing the technical scheme, the height of the communication part of the rainwater connecting pipe and the overflow well is higher than the height of the top end of the medium sand filter layer, so that the roots of the vegetation can be contacted with water in the planting soil layer; the height of the communicated position of the rainwater connecting pipe and the overflow well is lower than the height of one half of the planting soil layer, so that the condition that the vegetation roots are rotted due to the fact that the vegetation is submerged by water can be avoided.
Furthermore, a permeable geotextile is laid between the medium sand filter layer and the filter medium layer.
Implement above-mentioned technical scheme, through the setting of the geotechnological cloth that permeates water, can filter the rainwater, the rainwater also can be through the geotechnological cloth that permeates water, and the geotechnological cloth that permeates water can be separated medium sand filter layer and filter medium layer, avoids the two to influence each other.
Furthermore, a plurality of cobblestones are embedded in the planting soil layer.
By implementing the technical scheme, when too much rainwater is accumulated in the planting soil layer, the planting soil layer can be prevented from being damaged by rainwater through the cobblestone, and the stability of the planting soil layer is kept.
Furthermore, a liftable filter basket is arranged at a position, close to the top of the overflow well, in the overflow well, and the filter basket is arranged on the inner wall of the overflow well in a sliding mode.
Implement above-mentioned technical scheme, unnecessary rainwater in the water storage layer gets into in the overflow well, and the water that flows into in the overflow well falls into and strains the basket in, and the rainwater is strained the basket and is filtered, and clean water discharges into in the rainwater well through the overflow well, and impurity persists in straining the basket, strains the basket when interior impurity is too much, will strain the basket and rise, clears up inside impurity, can make to strain the basket and can use repeatedly.
Further, the top of overflow well is provided with the shielding body, be provided with first mounting bracket and second mounting bracket on the shielding body side by side, first mounting bracket is located the top of overflow well, roll connection has first roller bearing on the first mounting bracket, roll connection has the second roller bearing on the second mounting bracket, first roller bearing is outer around being equipped with the pull wire, the one end and the filter basket of pull wire are connected, the other end and the second roller bearing of pull wire are connected.
Implement above-mentioned technical scheme, when the impurity in the filter basket was too much, rotate the second roller bearing, the second roller bearing rotates and drives the pull wire and twine on the second roller bearing, and the one end that the second roller bearing was kept away from to the pull wire drags the filter basket and rises, and then can pull out the filter basket from the overflow well.
Further, one end of the second rolling shaft is connected with a handle.
Implement above-mentioned technical scheme, through the setting of handle, can be convenient for the staff rotates the second roller.
Furthermore, the top of straining the basket is connected with and is criss-cross link, the tip of link is connected with the lateral wall of straining the basket, the one end that the second roller bearing was kept away from to the pull wire is put with the central point of link and is connected.
Implement above-mentioned technical scheme, the in-process that the pull wire pull filter basket slided along the overflow well through the setting of link, can be so that the process that filter basket removed is more stable.
To sum up, the utility model discloses following beneficial effect has:
when rainwater permeates, impurities with larger volume and smaller volume after the rainwater falls into the foundation pit can be filtered through the arrangement of the filtering layer, so that the rainwater is cleaner;
and secondly, when the rainwater is too much in the water storage layer, the rainwater is discharged into the rainwater well through the overflow well, and impurities in the rainwater can be filtered through the filter basket, so that the water quality in the overflow well is prevented from being polluted by the impurities.
Drawings
Fig. 1 is a schematic structural view of the whole of the present invention;
fig. 2 is a sectional view of the overflow well of the present invention;
fig. 3 is an enlarged view of a portion a in fig. 2.
Reference numerals: 1. a foundation pit; 11. a first mounting bracket; 111. a first roller; 12. a second mounting bracket; 121. a second roller; 1211. a handle; 1212. a pull wire; 13. a shielding body; 2. a plain soil ramming layer; 3. a sandy soil layer; 4. a gravel drainage layer; 41. a water collecting blind pipe; 5. a filter layer; 51. a medium sand filtering layer; 52. a filter medium layer; 6. planting a soil layer; 61. cobblestones; 7. a aquifer; 8. an overflow well; 81. a rainwater connecting pipe; 811. a catch basin; 9. water-permeable geotextile; 10. a filter basket; 101. and a connecting frame.
Detailed Description
The technical solution of the embodiment of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, a rainwater garden with a water filtering function includes a foundation pit 1. A plain soil compaction layer 2, a sand layer 3, a gravel drainage layer 4, a filtering layer 5, a planting soil layer 6 and a water storage layer 7 are sequentially paved in the foundation pit 1 from bottom to top, the filtering layer 5 comprises a filtering medium layer 52 and a medium sand filtering layer 51 which are sequentially arranged from bottom to top, and the filtering medium layer 52 comprises a filtering net and filtering cloth and plays a role in filtering small-sized impurities; the medium sand filter layer 51 comprises sand, soil, gravel and the like, and has a filtering effect on impurities with larger volume. The permeable geotextile 9 is arranged between the filter medium layer 52 and the medium sand filter layer 51, and the permeable geotextile 9 is a permeable geosynthetic material formed by needling or weaving fiber, so that the permeable filter medium has the permeable filtering function. A plurality of cobblestones 61 are embedded in the planting soil layer 6.
A water collecting blind pipe 41 is laid in the gravel drainage layer 4, a vertical overflow well 8 is arranged on one side of the foundation pit 1, the top of the overflow well 8 is communicated with the outside, and the bottom of the overflow well 8 is communicated with the water collecting blind pipe 41. The overflow well 8 is communicated with a rainwater connecting pipe 81, and one end of the rainwater connecting pipe 81 far away from the overflow well 8 is communicated with a rainwater well 811. The communication position of the rainwater connecting pipe 81 and the overflow well 8 is higher than the top end of the gravel drainage layer 4 and lower than the half height of the planting soil layer 6.
As shown in fig. 2 and 3, a shielding body 13 for shielding the opening of the overflow well 8 is arranged above the overflow well 8, a liftable filter basket 10 is slidably arranged in the overflow well 8, and the side wall of the filter basket 10 slides relative to the inner wall of the overflow well 8. One side of the shielding body 13 facing the overflow well 8 is provided with a first mounting frame 11 and a second mounting frame 12 side by side, the first mounting frame 11 is located right above the overflow well 8 and is opposite to the rainwater well 811, the first mounting frame 11 is connected with a first rolling shaft 111 in a rolling manner, and the second mounting frame 12 is connected with a second rolling shaft 121 in a rolling manner. A handle 1211 is connected to one end of the second roller 121. The opening at the top of the filter basket 10 is provided with a cross-shaped connecting frame 101, the connecting frame 101 is perpendicular to the side wall of the overflow well 8, and the end part of the connecting frame 101 is connected with the side wall of the filter basket 10. A pulling wire 1212 is wound around the first roller 111 and the second roller 121, one end of the pulling wire 1212 is connected to the second roller 121, and the other end of the pulling wire 1212 is wound around the first roller 111 and then connected to the center of the connecting frame 101.
The working principle is as follows: rainwater falls into the foundation pit 1, permeates into the planting soil layer 6 through the water storage layer 7, impurities with large volume in the rainwater are filtered by the medium sand filter layer 515, the rainwater permeates into the filter medium layer 52 through the permeable geotextile 9, the rainwater containing sandy soil is filtered by the filter medium layer 52 after passing through the filter medium layer 52, clean rainwater is discharged into the gravel drainage layer 4 and is discharged into the water collection blind pipe 41, and the rainwater entering the water collection blind pipe 41 enters the overflow well 8; when excessive rainwater is accumulated on the surface of the water storage layer 7, the redundant rainwater flows into the overflow well 8; the rainwater entering the overflow well 8 is transferred into the rainwater well 811 through the rainwater connection pipe 81. Through the infiltration and the filtration of above-mentioned rainwater, can filter the impurity in the rainwater.
Unnecessary rainwater in the aquifer 7 enters the overflow well 8, water flowing into the overflow well 8 falls into the filtering basket 10, the rainwater is filtered by the filtering basket 10, clean water is discharged into the rainwater well 811 through the overflow well 8, impurities are reserved in the filtering basket 10, when the impurities in the filtering basket 10 are excessive, the second roller 121 is rotated, the second roller 121 rotates to drive the pull wire 1212 to be wound on the second roller 121, one end of the pull wire 1212, which is far away from the second roller 121, drags the filtering basket 10 to ascend, the filtering basket 10 can be pulled out from the overflow well 8, the impurities in the filtering basket 10 are cleaned, and the filtering basket 10 can be reused.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (9)

1. The utility model provides a rainwater garden with drainage function, includes foundation ditch (1), foundation ditch (1) is inside by lower supreme plain soil tamp layer (2), sand layer (3), gravel drainage blanket (4), planting soil layer (6) and water storage layer (7) of laying in proper order, characterized by: the gravel drainage layer (4) is laid with the filter layer (5) between planting soil layer (6) and gravel drainage layer (4), filter layer (5) include medium sand filter layer (51) and filter medium layer (52), the bottom of planting soil layer (6) is laid in medium sand filter layer (51), the top of gravel drainage layer (4) is laid in filter medium layer (52), one side of foundation ditch (1) is provided with spillway well (8), the top and the external intercommunication of spillway well (8), gravel drainage layer (4) are embedded to be equipped with water collection blind pipe (41), water collection blind pipe (41) and spillway well (8) intercommunication, spillway well (8) intercommunication has rainwater connecting pipe (81), the one end intercommunication that spillway well (8) were kept away from to rainwater connecting pipe (81) has rainwater well (811).
2. A stormwater garden with water filtering according to claim 1, wherein: the water collecting blind pipe (41) is communicated with the bottom of the overflow well (8), and the communicated part of the rainwater connecting pipe (81) and the overflow well (8) is opposite to the planting soil layer (6).
3. A stormwater garden with water filtering according to claim 2, wherein: the height of the communicated part of the rainwater connecting pipe (81) and the overflow well (8) is higher than the height of the top end of the medium sand filtering layer (51) and lower than the height of one half of the planting soil layer (6).
4. A stormwater garden with water filtering according to claim 1, wherein: and a permeable geotextile (9) is laid between the medium sand filter layer (51) and the filter medium layer (52).
5. A stormwater garden with water filtering according to claim 1, wherein: a plurality of cobblestones (61) are embedded in the planting soil layer (6).
6. A stormwater garden with water filtering according to claim 1, wherein: the position that is close to overflow well (8) top in overflow well (8) is provided with liftable strain basket (10), strain basket (10) and slide and set up in the inner wall of overflow well (8).
7. A stormwater garden with water filtering according to claim 6, wherein: the top of overflow well (8) is provided with shielding body (13), be provided with first mounting bracket (11) and second mounting bracket (12) on shielding body (13) side by side, first mounting bracket (11) are located the top of overflow well (8), roll connection has first roller bearing (111) on first mounting bracket (11), roll connection has second roller bearing (121) on second mounting bracket (12), first roller bearing (111) are equipped with pull wire (1212) around outward, the one end and the straining basket (10) of pull wire (1212) are connected, the other end and the second roller bearing (121) of pull wire (1212) are connected.
8. A stormwater garden with water filtering according to claim 7, wherein: one end of the second roller (121) is connected with a handle (1211).
9. A stormwater garden with water filtering according to claim 7, wherein: the top of straining basket (10) is connected with and is criss-cross link (101), the tip of link (101) is connected with the lateral wall of straining basket (10), the one end that second roller bearing (121) was kept away from in pull wire (1212) is put with the central point of link (101) and is connected.
CN201920440520.2U 2019-04-01 2019-04-01 Rainwater garden with water filtering function Active CN209873808U (en)

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Application Number Priority Date Filing Date Title
CN201920440520.2U CN209873808U (en) 2019-04-01 2019-04-01 Rainwater garden with water filtering function

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Application Number Priority Date Filing Date Title
CN201920440520.2U CN209873808U (en) 2019-04-01 2019-04-01 Rainwater garden with water filtering function

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CN209873808U true CN209873808U (en) 2019-12-31

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114775768A (en) * 2022-04-27 2022-07-22 福建省春天生态科技股份有限公司 Construction method of rainwater garden in sponge city

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114775768A (en) * 2022-04-27 2022-07-22 福建省春天生态科技股份有限公司 Construction method of rainwater garden in sponge city

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