Rainwater garden structure

Abstract

The utility model discloses a rainwater garden structure which comprises a vegetation planting area, the vegetation planting area comprises a gravel layer, a planting medium layer and a covering layer, the planting medium layer is arranged at the top of the gravel layer, the covering layer is arranged at the top of the planting medium layer, an overflow pipe is arranged in the vegetation planting area, and the overflow pipe is connected with the gravel layer. A filter cover is arranged at the top of the overflow pipe, the filter cover is arranged on the periphery of the top of the overflow pipe, a filter cover is arranged on the overflow pipe, a filter screen is arranged in the filter cover, and the filter cover is installed at the end of the overflow pipe. The overflow pipe can be conveniently prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of rain gardens, in particular to a rain garden structure. Background Art

[0002] Rainwater is not only an important way to supplement groundwater in nature, but also the main source of domestic and production water in modern cities. With the continuous development of urbanization, the gradual increase of impervious areas on the urban surface has led to the continuous reduction of biological habitats, the obstruction of the self-benign cycle path of rainwater, and the frequent occurrence of urban waterlogging disasters, becoming a major hidden danger threatening urban safety. Therefore, different garden structures need to be built according to different building environments.

[0003] The existing rain garden structure discharges excess water through an overflow pipe, but the end of the overflow pipe needs to be cleaned regularly. When the staff is negligent and does not clean it for a long time, there is a possibility of blockage, which needs to be improved. Content of the Utility Model

[0004] This application provides a rain garden structure, which is convenient for preventing the overflow pipe from being blocked.

[0005] A rain garden structure provided by this application adopts the following technical scheme:

[0006] A rain garden structure includes a vegetation planting area. The vegetation planting area includes a gravel layer, a planting medium layer and a covering layer. The planting medium layer is arranged on the top of the gravel layer, and the covering layer is arranged on the top of the planting medium layer. An overflow pipe is arranged in the vegetation planting area. A filter cover is arranged on the top of the overflow pipe. The filter cover is arranged around the top of the overflow pipe. A filter lid is arranged on the overflow pipe. A filter net is arranged inside the filter lid. The filter lid is installed at the end of the overflow pipe.

[0007] By adopting the above technical scheme, in the rain garden structure designed by the utility model, during use, the rain garden is mainly composed of a vegetation planting area and a sidewalk, etc. The vegetation planting area mainly has three layers, namely a gravel layer, a planting medium layer and a covering layer. The gravel layer can be used to purify rainwater and remove pollutants in the rainwater in the rain garden. The planting medium layer can provide the nutrients required for the vegetation in the rain garden. The covering layer can keep the moisture in the vegetation planting area. In order to prevent rainwater from overflowing in the vegetation planting area, an overflow pipe is arranged in the vegetation planting area. The overflow pipe is used to discharge excess water. A filter cover is arranged on the top of the overflow pipe. The filter cover can preliminarily filter the rainwater. The filter lid on the top of the overflow pipe can perform secondary filtration on the rainwater. Both filtrations can filter out sundries. Therefore, the rain garden structure designed by the utility model removes sundries in the rainwater through secondary filtration to prevent the overflow pipe from being blocked.

[0008] Preferably, a needle-punched geotextile is provided between the gravel layer and the planting medium layer, and an impermeable geotextile is provided outside the vegetation planting area.

[0009] By adopting the above technical solution, the provided needle-punched geotextile, on the one hand, facilitates separating the gravel layer and the planting medium layer from each other, and on the other hand, by virtue of the water permeability and air permeability of the needle-punched geotextile, it is convenient for rainwater to penetrate; the provided impermeable geotextile is convenient for preventing soil leakage and at the same time preventing external impurities from entering the vegetation planting area.

[0010] Preferably, a plurality of U-shaped nails are inserted into the needle-punched geotextile and the impermeable geotextile, and the U-shaped nails fix the needle-punched geotextile between the gravel layer and the planting medium layer and fix the impermeable geotextile outside the vegetation planting area.

[0011] By adopting the above technical solution, the setting of the U-shaped nails facilitates fixing the needle-punched geotextile and the impermeable geotextile.

[0012] Preferably, an internal thread is provided inside the filter cover, an external thread is provided at the end of the overflow pipe, and the filter cover is threadedly connected to the overflow pipe.

[0013] By adopting the above technical solution, the provided internal thread and external thread facilitate the threaded connection between the filter cover and the overflow pipe.

[0014] Preferably, the filter cover is provided with a plurality of mesh holes, the filter net is provided with a plurality of filter holes, and the diameter of the mesh holes is larger than the diameter of the filter holes.

[0015] By adopting the above technical solution, the provided mesh holes facilitate filtering out larger sundries; the provided filter holes facilitate filtering out smaller sundries.

[0016] Preferably, a fixing structure is provided at the bottom of the filter cover, the fixing structure includes a plurality of fixing members fixedly connected to the bottom of the filter cover, a jack is provided on the plurality of fixing members, an insertion rod is provided on the jack, and the filter cover is inserted into the covering layer through the jack by the insertion rod.

[0017] By adopting the above technical solution, the provided fixing structure facilitates fixing the filter cover on the covering layer; the provided jack facilitates inserting the insertion rod; the provided insertion rod fixes the filter cover by means of insertion.

[0018] Preferably, a rubber pad is provided at the bottom of the fixing member, and the rubber pad is bonded to the bottom of the fixing member.

[0019] By adopting the above technical solution, the provided rubber pad facilitates making the fixing member fixed more stably.

[0020] Preferably, a drainage device is connected to the bottom of the overflow pipe. The drainage device includes a drainage channel provided on one side of the vegetation planting area. A drain pipe is provided on one side of the drainage channel close to the overflow pipe. The drain pipe is connected to the overflow pipe, and a drainage pump is provided on the drain pipe.

[0021] By adopting the above technical solutions, the provided drainage device facilitates the drainage of the water in the overflow pipe; the provided drainage channel facilitates the collection of the drained rainwater; the provided drain pipe facilitates the control of the flow direction of the rainwater; the provided drainage pump facilitates the control of the rainwater flow.

[0022] In summary, the present application has the following beneficial effects:

[0023] 1. This structure mainly filters the rainwater in the rain garden through the filter cover and the filter lid, preventing the rainwater in the rain garden from being clogged with some debris and blocking the overflow pipe in the rain garden, affecting the use of the overflow pipe;

[0024] 2. This structure prevents impurities and pollutants in the gravel layer from entering the planting medium layer through the needle-punched geotextile cloth arranged between the gravel layer and the planting medium layer, thus affecting the growth of vegetation;

[0025] 3. This device makes the overflow rainwater in the rain garden enter through the overflow pipe and be discharged into the drainage channel through the drain pipe by setting the drainage device, facilitating the reuse of resources and enhancing the environmental protection of the rain garden. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of the embodiment;

[0027] Figure 2 It is a cross-sectional view showing the U-shaped nails in the embodiment;

[0028] Figure 3 It is a cross-sectional view showing the filter lid in the embodiment;

[0029] Figure 4 It is a schematic structural diagram showing the filter cover in the embodiment;

[0030] Description of the reference numerals: 1, vegetation planting area; 2, gravel layer; 3, planting medium layer; 4, covering layer; 5, overflow pipe; 6, filter cover; 7, filter lid; 8, filter net; 9, needle-punched geotextile cloth; 10, anti-seepage geotextile cloth; 11, U-shaped nails; 12, internal thread; 13, external thread; 14, mesh holes; 15, filter holes; 16, fixing structure; 161, fixing member; 17, jack; 18, inserting rod; 19, rubber pad; 20, drainage device; 201, drainage channel; 202, drain pipe; 203, drainage pump. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The present utility model will be further described in detail below in conjunction with the accompanying drawings. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper", "lower", "bottom surface" and "top surface" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0032] The present utility model discloses a rain garden structure, as Figures 1 to 4 shown, which includes a vegetation planting area 1. The vegetation planting area 1 includes a gravel layer 2, a planting medium layer 3 and a covering layer 4. The gravel layer 2 is arranged at the bottom of the entire vegetation planting area 1 and is used for storing and filtering rainwater. The gravel layer 2 is composed of gravels of different sizes and shapes to provide good water permeability and filtering effect. A planting medium layer 3 is arranged on the top of the gravel layer 2. This layer is mainly composed of fertile soil and is used for the growth of vegetation. The planting medium layer 3 can provide the nutrients and moisture required by the vegetation to ensure the healthy growth of the vegetation. A covering layer 4 is arranged on the top of the planting medium layer 3. The covering layer 4 can be composed of wood chips, bark or other organic materials and is used for protecting the planting medium layer 3 and preventing water evaporation. A needle-punched geotextile 9 is arranged between the gravel layer 2 and the planting medium layer 3. An anti-seepage geotextile 10 is arranged outside the vegetation planting area 1. A plurality of U-shaped nails 11 are inserted into the needle-punched geotextile 9 and the anti-seepage geotextile 10. The U-shaped nails 11 fix the needle-punched geotextile 9 between the gravel layer 2 and the planting medium layer 3 and fix the anti-seepage geotextile 10 outside the vegetation planting area 1.

[0033] An overflow pipe 5 is arranged in the vegetation planting area 1. A filter cover 6 is arranged at the top of the overflow pipe 5. The filter cover 6 is arranged around the top of the overflow pipe 5 and can effectively prevent large impurities such as leaves and garbage from entering the overflow pipe 5 to ensure the smoothness of the overflow pipe 5. A fixing structure 16 is arranged at the bottom of the filter cover 6. The fixing structure 16 includes a plurality of fixing members 161 fixedly connected to the bottom of the filter cover 6. A socket 17 is arranged on the plurality of fixing members 161. A plug rod 18 is arranged on the socket 17. The plug rod 18 inserts the filter cover 6 into the covering layer 4 through the socket 17. A rubber pad 19 is arranged at the bottom of the fixing member 161. The rubber pad 19 is bonded to the bottom of the fixing member 161. A filter cover 7 is arranged on the overflow pipe 5. A filter net 8 is arranged inside the filter cover 7. The filter net 8 can capture finer particles and impurities, thereby improving the water quality of the water discharged from the overflow pipe 5. The filter cover 7 is installed at the end of the overflow pipe 5. An internal thread 12 is arranged inside the filter cover 7. An external thread 13 is arranged at the end of the overflow pipe 5. The filter cover 7 is threadedly connected to the overflow pipe 5. The filter cover 6 is provided with a plurality of mesh holes 14, and the filter net 8 is provided with a plurality of filter holes 15. The diameter of the mesh holes 14 is larger than the diameter of the filter holes 15.

[0034] A drain device 20 is connected to the bottom of the overflow pipe 5. The drain device 20 includes a drainage channel 201 provided on one side of the vegetation planting area 1. A drain pipe 202 is provided on the side of the drainage channel 201 close to the overflow pipe 5. The drain pipe 202 is connected to the overflow pipe 5. A drain pump 203 is provided on the drain pipe 202. When the rainfall exceeds the load of the rain garden, the drain pump 203 is started to quickly discharge the preliminarily filtered rainwater, preventing damage to the vegetation and the surrounding environment caused by rainwater accumulation.

[0035] Working principle: A rain garden structure designed by the present utility model. In order to prevent excessive rainwater in the rain garden, an overflow pipe 5 is provided in the rain garden to discharge the excessive rainwater through the overflow pipe 5. However, since the rainwater will be mixed with sundries, in order to prevent the overflow pipe 5 from being blocked by sundries, the rainwater is secondarily filtered by providing a filter cover 6 and a filter lid 7 on the overflow pipe 5. The filter cover 6 filters larger sundries, and the filter net 8 is used to filter smaller sundries. By secondary filtering, the anti-blocking ability of the overflow pipe 5 is improved. Finally, the rainwater in the overflow pipe 5 is discharged into the drainage channel 201 through the drain pipe 202 for collection. Therefore, a rain garden structure designed by the present utility model is convenient for preventing the overflow pipe 5 from being blocked.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A rain garden structure, characterized in that: The invention comprises a vegetation planting area (1), wherein the vegetation planting area (1) comprises a gravel layer (2), a planting medium layer (3) and a covering layer (4), wherein a planting medium layer (3) is arranged on the top of the gravel layer (2), and a covering layer (4) is arranged on the top of the planting medium layer (3), wherein an overflow pipe (5) is arranged in the vegetation planting area (1), a filter cover (6) is arranged on the top of the overflow pipe (5), and the filter cover (6) is arranged around the top of the overflow pipe (5), and a filter cover (7) is arranged on the overflow pipe (5), and a filter net (8) is arranged in the filter cover (7), and the filter cover (7) is installed at the end of the overflow pipe (5).

2. A rain garden structure according to claim 1, characterized in that: A needle-punched geotextile (9) is arranged between the gravel layer (2) and the planting medium layer (3), and an anti-seepage geotextile (10) is arranged outside the vegetation planting area (1).

3. A rain garden structure according to claim 2, characterized in that: A plurality of U-shaped nails (11) are inserted into the needle-punched geotextile (9) and the anti-seepage geotextile (10), and the U-shaped nails (11) fix the needle-punched geotextile (9) between the gravel layer (2) and the planting medium layer (3) and fix the anti-seepage geotextile (10) outside the vegetation planting area (1).

4. A rain garden structure according to claim 1, characterized in that: The filter cover (7) is provided with an internal thread (12), the end of the overflow pipe (5) is provided with an external thread (13), and the filter cover (7) is threadedly connected to the overflow pipe (5).

5. A rain garden structure according to claim 1, characterized in that: The filter cover (6) is provided with a plurality of mesh holes (14), the filter net (8) is provided with a plurality of filter holes (15), and the diameter of the mesh holes (14) is greater than the diameter of the filter holes (15).

6. A rain garden structure according to claim 1, characterized in that: A fixing structure (16) is provided at the bottom of the filter cover (6), and the fixing structure (16) comprises a plurality of fixing members (161) fixedly connected to the bottom of the filter cover (6), and the plurality of fixing members (161) are provided with insertion holes (17), and the insertion holes (17) are provided with insertion rods (18), and the insertion rods (18) insert the filter cover (6) into the covering layer (4) through the insertion holes (17).

7. A rain garden structure according to claim 6, characterized in that: A rubber pad (19) is provided at the bottom of the fixing member (161), and the rubber pad (19) is bonded to the bottom of the fixing member (161).

8. The rain garden structure according to claim 1, characterized in that: The bottom of the overflow pipe (5) is connected to a drainage device (20), the drainage device (20) comprising a drainage channel (201) arranged on one side of the vegetation planting area (1), a drainage pipe (202) being arranged on the side of the drainage channel (201) close to the overflow pipe (5), the drainage pipe (202) being connected to the overflow pipe (5), and a drainage pump (203) being arranged on the drainage pipe (202).

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