CN111101589A - Ecological drainage system of afforestation maintenance - Google Patents
Ecological drainage system of afforestation maintenance Download PDFInfo
- Publication number
- CN111101589A CN111101589A CN202010010643.XA CN202010010643A CN111101589A CN 111101589 A CN111101589 A CN 111101589A CN 202010010643 A CN202010010643 A CN 202010010643A CN 111101589 A CN111101589 A CN 111101589A
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- rainwater
- drainage system
- top cover
- water
- foundation pit
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/101—Dedicated additional structures, interposed or parallel to the sewer system
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/0401—Gullies for use in roads or pavements
- E03F5/0404—Gullies for use in roads or pavements with a permanent or temporary filtering device; Filtering devices specially adapted therefor
Abstract
The invention relates to the technical field of greening landscape drainage, in particular to a greening maintenance ecological drainage system, which comprises a foundation pit and a rainwater reservoir; the foundation pit comprises a planting soil layer, a gravel filtering layer, a waterproof layer, a rainwater collector and an overflow pipe; the rainwater collector comprises two mounting walls, a trough body and a top cover, and also comprises a plurality of throttling rods penetrating through the top cover, wherein a connecting plate is arranged at the top of each throttling rod, a plug body is arranged at the bottom of each throttling rod, the plug body adjusts the opening degree of a rainwater channel positioned in the trough body, and a reset spring is arranged between the connecting plate and the top cover; the lateral wall of the foundation pit is provided with a water guide structure communicated with one end of the overflow pipe and the through hole on the installation wall, and the water guide structure is connected with the rainwater reservoir. According to the rainwater storage device, due to the arrangement of the water collector and the overflow pipe, rainwater can be effectively stored in the rainwater storage tank through the water guide structure when the rainfall is large, on one hand, pollution of green landscapes is effectively avoided, and on the other hand, the rainwater can be conveniently recycled.
Description
Technical Field
The invention relates to the technical field of greening landscape drainage, in particular to a greening maintenance ecological drainage system.
Background
Urban rainwater utilization comprises the processes of rainwater collection, storage, control, efficient utilization and the like. Uses for rain water include: supplementing groundwater, greening water, landscape water, urban miscellaneous, residential miscellaneous, and industrial water, etc., and thus rainwater is a very valuable water resource.
In recent years, the technology development of recycling and rainwater collection and utilization of urban rainwater in some developed countries is fast, but drainage is mainly used in the past urban rainwater drainage projects in China, the utilization rate of rainwater is low, a large amount of rainwater on urban roads is directly drained into a water body through a pipeline, the rainwater collection for the part of rainwater is easy to realize, before the rainwater is drained into the water body, the rainwater can be only absorbed by a drainage structure at the edge of the road, but the rainwater can be only absorbed for areas with more greenery landscapes, and no way is available for effectively collecting and recycling the rainwater, and when the rainfall is high, the rainwater can be accumulated in the greenery landscape areas, so that a large amount of organic pollutants, mud, gravel and the like are retained in the areas, and the water purification capacity and the absorption capacity of the greenbelt are reduced.
In view of the existing drainage defects of greening landscapes, the inventor of the invention actively carries out research and innovation based on the practical experience and professional knowledge which are abundant for years when the products are designed and manufactured, and the application of the theory is matched, so as to create a greening maintenance ecological drainage system, and the greening maintenance ecological drainage system is more practical. After continuous research and design and repeated trial production and improvement, the invention with practical value is finally created.
Disclosure of Invention
The invention mainly aims to provide a greening maintenance ecological drainage system, so as to effectively solve the problems pointed out in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a greening maintenance ecological drainage system comprises a foundation pit and a rainwater reservoir;
the foundation pit at least comprises a planting soil layer, a gravel filtering layer and a waterproof layer which are arranged from top to bottom; a rainwater collector is arranged between the planting soil layer and the gravel filtering layer, and overflow pipes with overflow holes uniformly distributed are arranged at the bottom of the gravel filtering layer;
the rainwater collector comprises two mounting walls attached to the inner side of the foundation pit, a tank body arranged between the two mounting walls, a top cover which covers the top opening end of the tank body and is provided with a water through hole, and a plurality of throttling rods penetrating through the top cover, wherein a connecting plate is arranged at the top of each throttling rod, a plug body is arranged at the bottom of each throttling rod, the plug body adjusts the opening degree of a rainwater channel in the tank body, and a reset spring is arranged between the connecting plate and the top cover;
the side wall of the foundation pit is provided with a water guide structure communicated with the through hole in the mounting wall and one end of the overflow pipe, and the water guide structure is connected with the rainwater reservoir.
Further, the top cap is including being used for running through the interlude of throttle lever to and the symmetry set up in two gliding sections of interlude both sides, the limbers set up in on the gliding section.
Further, the part that the top cap with the cell body is connected is provided with the arch, the edge of cell body be provided with the recess of protruding adaptation, the top cap surpasss the cell body edge, the arch is in slide setting in the recess.
Furthermore, the middle of the lower sliding section and the middle section is hinged through a torsion spring.
Further, the cell body includes the lower water section to and the symmetry set up in lower water section both sides and from with the slope surface that the junction tilt up of lower water section set up, include on the lower water section with stopper body direction of motion is parallel two boards that leak, the board that leaks is provided with along the co-altitude not hole that leaks, the stopper body is two the board laminating motion that leaks.
Furthermore, the reset spring is sleeved on the periphery of the throttle rod.
Further, the rainwater collector and the overflow pipe are arranged in a staggered mode in the transverse direction.
Further, the through hole in the mounting wall is provided in the bottom.
Furthermore, the groove body is partially embedded in the gravel filtering layer.
Furthermore, a filter screen is connected between the two groove bodies and is attached to the surface of the gravel filter layer.
Through the technical scheme, the invention has the beneficial effects that:
when a small amount of rainwater acts on the drainage system in the invention, the connecting plate has smaller displacement, so that the opening degree of a rainwater channel in the trough body is larger, the rainwater flows from the rainwater collector to the gravel filter layer, the rainwater smoothly infiltrates the soil from top to bottom in the soil, the movement amount of the connecting plate is increased along with the gradual increase of the rainfall, the opening degree of the rainwater channel in the trough body is inversely related to the rainfall, and the throttled rainwater enters the rainwater reservoir through a water guide structure which is arranged on the side wall of the foundation pit and communicated with the through hole on the mounting wall, so that the rainwater can be reused. When the rainfall is further increased to the rainwater channel in the groove body and is completely closed, the water guide capacity of the rainwater collector is exerted to one hundred percent, the first-stage diversion is realized, meanwhile, the rainfall circulating to the gravel filter layer is further improved, when the bottom of the gravel filter layer is reached, the rainwater can enter the overflow pipe through the through hole in the overflow pipe, then the rainwater enters the rainwater reservoir through the water guide structure, the second-stage diversion is realized, and the rainwater can be used for watering and the like through filtering and other operations after the rainwater is collected in the reservoir.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of an ecological drainage system for greening maintenance;
FIG. 2 is a schematic view of the rain collector (return spring not shown);
FIG. 3 is a cross-sectional view of a rain collector;
FIG. 4 is an internal view of the rain water collector with the top cover and return spring removed;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a schematic view of the connection of the filter screen to two rain water collectors;
reference numerals: the device comprises a planting soil layer 1, a gravel filter layer 2, a rainwater collector 3, a mounting wall 31, a groove body 32, a water discharging section 32a, a slope 32b, a water leaking plate 32c, a groove 32d, a top cover 33, a middle section 33a, a lower sliding section 33b, a protrusion 33c, a throttling rod 34, a connecting plate 35, a plug body 36, a return spring 37, a waterproof layer 4, an overflow pipe 5 and a filter screen 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.
As shown in fig. 1 to 3, an ecological drainage system for greening maintenance comprises a foundation pit and a rainwater reservoir; the foundation pit at least comprises a planting soil layer 1, a gravel filtering layer 2 and a waterproof layer 4 which are arranged from top to bottom; a rainwater collector 3 is arranged between the planting soil layer 1 and the gravel filtering layer 2, and overflow pipes 5 with overflow holes uniformly distributed are arranged at the bottom of the gravel filtering layer 2; the rainwater collector 3 comprises two mounting walls 31 attached to the inner side of a foundation pit, a groove body 32 arranged between the two mounting walls 31, a top cover 33 which covers the open end of the top of the groove body 32 and is provided with a water through hole, and a plurality of throttling rods 34 penetrating through the top cover 33, wherein the top of each throttling rod 34 is provided with a connecting plate 35, the bottom of each throttling rod 34 is provided with a plug body 36, the plug bodies 36 regulate the opening degree of a rainwater channel positioned in the groove body 32, and a return spring 37 is arranged between the connecting plate 35 and the top cover 33; and a water guide structure communicated with the through hole on the mounting wall 31 and one end of the overflow pipe 5 is arranged on the side wall of the foundation pit, and the water guide structure is connected with the rainwater reservoir.
In the use process of the greening maintenance ecological drainage system, firstly, a foundation pit is constructed, after the construction is finished, a waterproof layer 4 is arranged at the bottom, specifically, a plurality of layers of waterproof geomembranes can be adopted, the overflow pipe 5 is arranged on the waterproof layer 4 according to a set interval, through holes on the overflow pipe 5 are preferably uniformly distributed along the circumferential direction, so that water at each angle is guided, then, a gravel filter layer 2 is laid, wherein the gravel filter layer 2 can comprise a multilayer structure, a fine gravel layer and a coarse gravel layer can be arranged from top to bottom, the particle size is selected from 10 mm to 50mm, the thickness is controlled to be 50 +/-20 cm, after the laying is finished at the layer, a rainwater collector 3 is arranged, the uniform arrangement is required, so that rainwater can be uniformly guided out, finally, the planting soil layer 1 is laid, the conventional planting soil can be adopted, the thickness is preferably 30cm to 50cm, thereby ensuring the effective growth of the plant.
After the whole drainage system construction is completed, when a small amount of rainwater acts, the soil at the top of the connecting plate 35 is smaller in effect on the connecting plate 35 under the condition that the gravity is increased after the rainwater is beaten and absorbed, and has smaller displacement, so that the opening degree of a rainwater channel in the groove body 32 is larger, the rainwater smoothly infiltrates the soil from top to bottom in the soil, when the rainwater collector 3 is reached, the rainwater enters the groove body 32 from a water through hole of the top cover 33 and flows to the gravel filter layer 2 from the bottom of the groove body 32, certainly, the rainwater reaching the part is less because the rainwater amount is smaller, and in the whole small amount of rainfall, the rainwater collector 3 and the overflow pipe 5 hardly play a role, and the normal operation of the whole ecological system is ensured.
But along with the crescent of rainfall, the soil that is located the connecting plate 35 top increases the effort of connecting plate 35 under the circumstances that the gravity increases behind the flap of rainwater and the absorption rainwater, makes its trend of downward movement more obvious, thereby make the aperture of rainwater passageway in the cell body 32 reduce, at this in-process, the rainfall that gets into in the cell body 32 through the limbers of top cap 33 also increases, thereby make rainwater after the throttle get into the rainwater cistern and realize recycling through the water guide structure with the perforating hole UNICOM that is located on the installation wall 31 on the foundation ditch lateral wall. Wherein, the return spring 37 is preferably sleeved on the periphery of the throttle lever 34, thereby realizing the effectiveness of the return on the position of the connecting plate 35.
In the process, when the rainfall is further increased to the rainwater channel in the groove body 32 and is completely closed, the water guide capacity of the rainwater collector 3 is fully exerted, the first-stage diversion is realized, meanwhile, the rainwater quantity circulating to the gravel filtering layer 2 is further improved, and when the rainwater reaches the bottom of the gravel filtering layer 2, the rainwater can enter the overflow pipe 5 through the through hole in the overflow pipe 5, so that the rainwater enters the rainwater reservoir through the water guide structure, and the second-stage diversion is realized. The rainwater may be used for watering or the like by filtration or the like after being collected in the reservoir. Preferably rainwater collector 3 and overflow pipe 5 dislocation set in the transverse direction to make the water conservancy diversion of first order and the water conservancy diversion of second level can play a role in the common play in the transverse direction of difference, thereby guarantee the overall stability of planting soil horizon 1, wherein, rainwater collector 3 and overflow pipe 5 set for according to specific condition with length.
In the specific application process of the invention, the planting soil layer 1 needs to ensure enough filling power through the mode of manually and periodically turning soil or adding expansive soil into the soil, so that the movement sensitivity of the throttle lever 34 is ensured, and the final drainage effectiveness of the whole system is ensured. In the process of installing the system, the depth from the top of the connecting plate 35 to the surface layer of soil also needs to be effectively controlled, the thickness of 20-30 cm is excellent, a skin structure can be arranged on the top cover 33, the parts including the connecting plate 35 and the return spring 37 are coated, and rubber materials can be selected, so that the influence of the soil on the movement of the throttle rod 34 is reduced, the aperture of a hole site penetrating through the throttle rod 34 can be improved, and the phenomenon of blocking in the movement process is avoided.
In the whole system maintenance process, the working effectiveness of the rainwater collector 3 can be judged through a local rainfall test, so that the maintenance time is determined, and the working effect is judged. When the rainfall is less, the ecological drainage system for greening maintenance maintains ecological balance through the water purifying capacity and the absorbing capacity of the greening landscape, and when the rainfall is increased, different levels of treatment are carried out according to different rainfall, so that the influence of rainwater is effectively dealt with automatically, the ecological performance of the greening landscape is ensured, and the utilization rate of the rainwater is also increased.
As a preferable example of the above embodiment, referring to fig. 3, the top cover 33 includes an intermediate section 33a for penetrating the throttle lever 34, and two lower slide sections 33b symmetrically provided on both sides of the intermediate section 33a, and a water passage hole is provided on the lower slide sections 33 b. In the above embodiment of the present invention, the lower sliding section 33b is arranged so that, in the process of washing the soil with rainwater, a local form change occurs, that is, the soil on the top of the middle section 33a tends to slide downward along the lower sliding section 33b, and such a tendency increases the sensitivity of the movement of the throttle lever 34, because the movement is performed mainly by the soil, the whole rainwater collector 3 can be ensured to work more effectively, but in this process, the acting force of the rainwater on the upper surface of the whole drainage system is even, and therefore, the flatness of the ground is not affected.
As the optimization of the above embodiment, referring to fig. 3 to 5, the portion of the top cover 33 connected with the tank body 32 is provided with the protrusion 33c, the edge of the tank body 32 is provided with the groove 32d adapted to the protrusion 33c, the top cover 33 exceeds the edge of the tank body 32, and the protrusion 33c slides in the groove 32d, so that the difficulty of connecting the top cover 33 with the tank body 32 is reduced.
As a preference of the above embodiment, the lower sliding section 33b is hinged to the middle section 33a through a torsion spring, and through the above structural improvement of the top cover 33, the whole top cover 33 will have a tendency to unfold when the amount of rain increases, and this tendency is obtained, on one hand, through the flexibility obtained by the top cover 33, the service life of the whole top cover 33 can be improved, on the other hand, the stability of the whole rain water collector 3 can be ensured through the enlargement of the unfolding area, the risk of inclination is reduced, and besides, the receiving area for rain water can be increased, so that more rain water enters the groove body 32.
Preferably, the trough body 32 includes a lower water section 32a and slopes 32b symmetrically disposed on two sides of the lower water section 32a and inclined upward from a connection with the lower water section 32a, the lower water section 32a includes two water leaking plates 32c parallel to a moving direction of the plug 36, the water leaking plates 32c are provided with water leaking holes along different heights, and the plug 36 moves between the two water leaking plates 32 c. Here, the aperture adjustment mode to rainwater passageway in the cell body 32 has been optimized, and the rainwater that gets into reaches down section 32a along domatic 32b, can follow the hole that leaks of different heights on the board 32c that leaks and flow out to gravel filter layer 2 on, and the unnecessary rainwater under the throttle then gets into the rainwater cistern through the water guide structure and realizes recycling, when all holes that leak were all closed, then all discharge fast in all entering into the water guide structure, realize the effective protection to the afforestation view.
Wherein, through the setting of domatic 32b, still can realize entering into the collection of the soil in the cell body 32, the soil falls to between domatic 32b and the weeping board 32c, only needs to raise the height that is located the hole of falling into water of the bottommost of weeping board 32c, can reduce the probability that soil enters into gravel filter layer 2 to guarantee gravel filter layer 2's cleanliness, and soil can flow along with the rivers in the in-process that the rainwater leads to the circulation in the water structure.
Preferably, the through holes of the mounting wall 31 are arranged at the bottom, so that the rainwater in the trough body 32 can be completely and effectively circulated, and can be completely discharged in a first-in first-out mode.
In order to ensure the installation stability of the rainwater collector 3, the groove body 32 is partially embedded in the gravel filter layer 2, and because the gravel filter layer 2 has stronger structural stability and the influence of rainwater on the structure is weaker, the groove body 32 is partially embedded in the groove body 32, so that the groove body 32 can obtain stable support. As the optimization of this embodiment, as shown in fig. 6, a filter screen 6 is connected between the two groove bodies 32, the filter screen 6 is attached to the surface of the gravel filter layer 2, the plurality of rainwater collectors 3 can be integrated by the arrangement of the filter screen 6, the stability of the positions of the rainwater collectors 3 is improved, and in addition, the influence of soil entering the gravel filter layer 2 on the filtering effect can be avoided, wherein the filter screen 6 can be a plastic sieve plate or a metal sieve plate.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A greening maintenance ecological drainage system is characterized by comprising a foundation pit and a rainwater reservoir;
the foundation pit at least comprises a planting soil layer (1), a gravel filtering layer (2) and a waterproof layer (4) which are arranged from top to bottom; a rainwater collector (3) is arranged between the planting soil layer (1) and the gravel filtering layer (2), and overflow pipes (5) with overflow holes uniformly distributed are arranged at the bottom of the gravel filtering layer (2);
the rainwater collector (3) comprises two mounting walls (31) attached to the inner side of the foundation pit, a groove body (32) arranged between the two mounting walls (31), a top cover (33) covering the open end of the top of the groove body (32) and provided with a water through hole, and a plurality of throttling rods (34) penetrating through the top cover (33), wherein a connecting plate (35) is arranged at the top of each throttling rod (34), a plug body (36) is arranged at the bottom of each throttling rod (34), the plug body (36) is used for adjusting the opening degree of a rainwater channel in the groove body (32), and a return spring (37) is arranged between the connecting plate (35) and the top cover (33);
the side wall of the foundation pit is provided with a water guide structure communicated with the through hole in the installation wall (31) and one end of the overflow pipe (5), and the water guide structure is connected with the rainwater reservoir.
2. An ecological drainage system for green maintenance according to claim 1, wherein the top cover (33) comprises a middle section (33 a) for penetrating the throttling rod (34), and two lower sliding sections (33 b) symmetrically arranged at both sides of the middle section (33 a), and the water through holes are arranged on the lower sliding sections (33 b).
3. A green maintenance ecological drainage system according to claim 2, wherein a protrusion (33 c) is arranged at the connection part of the top cover (33) and the trough body (32), a groove (32 d) matched with the protrusion (33 c) is arranged at the edge of the trough body (32), the top cover (33) exceeds the edge of the trough body (32), and the protrusion (33 c) is arranged in the groove (32 d) in a sliding manner.
4. An ecological drainage system for green maintenance according to claim 2, wherein the lower sliding section (33 b) is hinged with the middle section (33 a) by a torsion spring.
5. A greening maintenance ecological drainage system according to any one of claims 1 to 4, wherein the tank body (32) comprises a drainage section (32 a) and slope surfaces (32 b) which are symmetrically arranged on two sides of the drainage section (32 a) and are obliquely arranged upwards from the connection part of the drainage section (32 a), the drainage section (32 a) comprises two drainage plates (32 c) which are parallel to the movement direction of the plug body (36), the drainage plates (32 c) are provided with drainage holes along different heights, and the plug body (36) is attached between the two drainage plates (32 c).
6. A green maintenance ecological drainage system according to claim 1, wherein the return spring (37) is sleeved on the periphery of the throttle lever (34).
7. An ecological drainage system for green maintenance according to claim 1, wherein the rain water collector (3) and the overflow pipe (5) are arranged in a staggered manner in a transverse direction.
8. A green maintenance ecological drainage system according to claim 1, wherein the through hole of the mounting wall (31) is provided at the bottom.
9. A green maintenance ecological drainage system according to claim 1, wherein the tank body (32) is partially embedded in the gravel filter layer (2).
10. A green maintenance ecological drainage system according to claim 9, wherein a filter screen (6) is connected between the two troughs (32), and the filter screen (6) is attached to the surface of the gravel filter layer (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010010643.XA CN111101589B (en) | 2020-01-06 | 2020-01-06 | Ecological drainage system of afforestation maintenance |
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| CN202010010643.XA CN111101589B (en) | 2020-01-06 | 2020-01-06 | Ecological drainage system of afforestation maintenance |
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| CN111101589A true CN111101589A (en) | 2020-05-05 |
| CN111101589B CN111101589B (en) | 2020-07-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114097469A (en) * | 2021-12-24 | 2022-03-01 | 苏州仁和园林股份有限公司 | Construction method of flower and shrub cultivation system |
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| CN110106957A (en) * | 2019-05-06 | 2019-08-09 | 中建八局第二建设有限公司 | A kind of sponge type Rain Garden overflow mechanism |
| CN110195453A (en) * | 2019-07-02 | 2019-09-03 | 余姚心智新能源科技有限公司 | A kind of pasture animal husbandry outdoor rain Collection utilization device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI824294L (en) * | 1981-12-15 | 1983-06-16 | Aeromator Trading Co Ab | ANORDINATION FOR INFILTRATION I MARK AV AVLOPPSVATTEN |
| US20120155965A1 (en) * | 2009-08-21 | 2012-06-21 | Falko Schubert | Gravity-fed basin |
| CN205935038U (en) * | 2016-07-18 | 2017-02-08 | 西安理工大学 | Initial rainwater abandoning device |
| CN206512731U (en) * | 2017-02-16 | 2017-09-22 | 尚玲 | A kind of construction of hydro project drainage arrangement |
| CN207362970U (en) * | 2017-08-28 | 2018-05-15 | 中国建筑第二工程局有限公司 | A kind of concave herbaceous field structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114097469A (en) * | 2021-12-24 | 2022-03-01 | 苏州仁和园林股份有限公司 | Construction method of flower and shrub cultivation system |
| CN114097469B (en) * | 2021-12-24 | 2023-01-06 | 苏州仁和园林股份有限公司 | Construction method of flower and shrub cultivation system |
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| Publication number | Publication date |
|---|---|
| CN111101589B (en) | 2020-07-10 |
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