River rainwater regulation and storage structure of sponge city

Abstract

The utility model discloses a sponge city riverway rainwater regulation and storage structure which comprises a water storage pool, and a cover plate is arranged on the top face of the water storage pool. The pit pools are arranged on the two sides of the water storage pool, a partition wall is arranged between the water storage pool and the pit pools, the pit pools are communicated with the water storage pool, soil is arranged at the bottoms of the pit pools and the water storage pool, and aquatic plants are planted in the pit pools. The downhill edge of the slope is connected with the pit pool, and grass plants are planted in the slope; and the regulation and storage slope is arranged at a water outlet of the reservoir. According to the rainwater regulation and storage structure for the river channel of the sponge city, a multi-stage purification system is formed through deep purification of grassy plants on the slope and aquatic plants in the pit pool, the increasingly strict water environment quality requirement can be effectively met, and the rainwater quality is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of sponge city technology, and in particular to a sponge city river rainwater regulation and storage structure. Background Technology

[0002] The concept of "sponge city" has emerged to address this need, aiming to improve a city's comprehensive water resource utilization capacity and flood control capabilities by constructing a series of facilities with rainwater absorption, infiltration, and slow release functions. In sponge city construction, waterways, as a key component of the urban water system, play a crucial role in realizing their rainwater regulation and storage functions.

[0003] However, existing rainwater storage structures have many problems. In some projects using traditional storage tanks, the removal rate of chemical oxygen demand (COD) in rainwater is only 30%-40%, and the removal rates of total nitrogen and total phosphorus are even lower, affecting the stability and sustainability of urban ecosystems. Some storage structures focus only on the single function of water storage, lacking consideration for rainwater purification and ecological utilization, resulting in poor purification effects and an inability to meet increasingly stringent water quality requirements. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to propose a rainwater storage structure for sponge city river channels. Through the deep purification of slope vegetation and aquatic plants in pits and ponds, a multi-level purification system is formed, which can effectively meet the increasingly stringent water environment quality requirements and significantly improve rainwater quality.

[0006] To achieve the above objectives, this utility model proposes a rainwater storage structure for sponge city river channels, including: a water storage tank, the top surface of which is provided with a cover plate;

[0007] The reservoir has pits on both sides, and there is a partition between the reservoir and the pits. The pits are connected to the reservoir. The bottom of the pits and the reservoir is soil, and aquatic plants are planted in the pits.

[0008] A slope, the lower edge of which is connected to the pit, and grass plants are planted in the slope;

[0009] The regulating slope is located at the outlet of the water storage tank.

[0010] This invention relates to a sponge city river rainwater storage structure. This structure forms a multi-level purification system through deep purification by grass plants on slopes and aquatic plants in pits and ponds. It can effectively meet increasingly stringent water environment quality requirements and significantly improve rainwater quality.

[0011] In addition, the sponge city river rainwater storage structure proposed in the application may also have the following additional technical features:

[0012] Specifically, the slope is provided with multiple sets of columns, each column having a planting cavity, and the opening of the column is set in an inclined structure.

[0013] Specifically, multiple sets of baffles are installed on the slope.

[0014] Specifically, the partition is pivotally connected to one side of the cover plate.

[0015] Specifically, it also includes walkways that are erected above the two sets of extensions.

[0016] Specifically, the regulating slope is connected to the outlet of the water storage tank, and a gate is provided between the regulating slope and the water storage tank.

[0017] Specifically, it also includes an extension road, which is located on the upper side of the slope.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 This is a schematic diagram of a sponge city river rainwater regulation and storage structure according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of a sponge city river rainwater regulation and storage structure according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of a sponge city river rainwater regulation and storage structure according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of a sponge city river rainwater storage structure according to an embodiment of the present invention.

[0024] As shown in the figure: 1. Reservoir; 2. Cover plate; 3. Pit; 4. Partition wall; 5. Slope; 6. Extension; 7. Regulating slope; 8. Gate; 9. Column; 10. Partition plate; 11. Walkway; 12. Aquatic plants; 13. Herbaceous plants. Detailed Implementation

[0025] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0026] The sponge city river rainwater storage structure of this utility model embodiment is described below with reference to the accompanying drawings.

[0027] like Figure 1-4 As shown, the sponge city river rainwater storage structure of this utility model embodiment may include:

[0028] Water storage tank 1, with a cover plate 2 installed on the top surface of water storage tank 1.

[0029] Understandably, the cover plate 2 can effectively prevent debris from falling into the water storage tank 1, and at the same time facilitate the later inspection and maintenance of the interior of the water storage tank 1.

[0030] Pit 3 is provided on both sides of water storage pool 1. A partition wall 4 is provided between water storage pool 1 and pit 3. Pit 3 is connected to water storage pool 1. The bottom of pit 3 and water storage pool 1 is soil. Aquatic plants 12 are planted in pit 3. Pit 3 is separated from water storage pool 1 by brick partition wall 4.

[0031] It should be noted that the thickness of the partition 4 described in this embodiment can be 20 cm to ensure the stability of the structure.

[0032] The bottom of pit 3 and reservoir 1 retains natural soil without hardening, which facilitates the natural infiltration of rainwater. Aquatic plants 12, such as reeds, cattails, and calamus, are planted in pit 3. These aquatic plants 12 not only beautify the environment but also absorb pollutants in rainwater through their own ecological functions, thus purifying the water.

[0033] Slope 5, the downslope of slope 5 is connected to the side of pit 3, and grass plants 13 are planted in slope 5.

[0034] Extension 6 is located on the upper slope side of slope 5.

[0035] It should be noted that the extension road 6 described in this embodiment is paved with permeable bricks, which can not only meet the needs of pedestrian passage, but also allow rainwater to infiltrate smoothly and replenish groundwater.

[0036] The regulating slope 7 is located at the outlet of the water storage tank 1.

[0037] Specifically, the bottom of pit 3 and reservoir 1 retains natural soil, and aquatic plants 12, such as reeds, are planted in pit 3 to purify the water. Slope 5 and pit 3 contain concrete columns 9 and plastic partitions 10. Grass plants 13 are planted inside the concrete columns 9 to prevent erosion and slow down rainwater flow. A permeable brick walkway 6 is laid along the upper slope to allow passage and rainwater infiltration. The outlet of reservoir 1 is equipped with a regulating slope 7, with a stainless steel flat gate 8 and an electric control system adjusting the opening according to the water level to regulate rainwater.

[0038] In one embodiment of this utility model, multiple sets of columns 9 are provided in the slope 5, and planting cavities are provided in the columns 9. The openings of the columns 9 are set in an inclined structure to provide a more stable growth space for the herbaceous plants 13.

[0039] Specifically, the planting cavity is designed to facilitate the filling of soil suitable for the growth of herbaceous plants 13, ensuring the stability of the plant roots. The opening is set at an angle, mainly based on the principle of rainwater erosion. The angled opening can guide rainwater to flow in a specific direction, avoiding rainwater directly impacting the soil and plant roots inside the planting cavity, enhancing the slope 5's ability to resist rainwater erosion, better protecting the vegetation on the slope 5, and thus improving the overall soil and water conservation effect of the slope 5.

[0040] In one embodiment of this utility model, multiple sets of baffles 10 are provided on the slope 5, and the multiple sets of baffles 10 further refine the control of rainwater runoff on the slope 5.

[0041] Specifically, when rainwater flows on slope 5, baffle 10 can block and slow down the flow multiple times, allowing rainwater more time to infiltrate into the soil.

[0042] To further explain, the presence of the baffle 10 can also disperse rainwater runoff into multiple small streams, reduce the concentrated impact of the water flow, reduce erosion and damage to the soil of the slope 5, help maintain the stability of the slope 5, and ensure that the growth environment of the herbaceous plants 13 is not affected by excessive erosion.

[0043] In one embodiment of this utility model, the partition wall 4 is pivotally connected to one side of the cover plate 2, which greatly facilitates the inspection and maintenance of the water storage tank 1 and the pit 3.

[0044] To further explain, when it is necessary to inspect, clean or repair the interior of the water storage tank 1 or the connecting structure between the pit 3 and the water storage tank 1, simply open the cover plate 2 to easily operate on the partition wall 4 and related parts.

[0045] In one embodiment of this utility model, the regulating slope 7 is connected to the outlet of the water storage tank 1, and a gate 8 is provided between the regulating slope 7 and the water storage tank 1.

[0046] It should be noted that a stainless steel flat gate 8 is installed between the regulating slope 7 and the reservoir 1. The gate 8 is operated by an electric control system and its opening can be flexibly adjusted according to the water level of the reservoir 1 and the river water level to achieve effective regulation of rainwater and prevent the river water level from rising suddenly due to concentrated rainwater discharge.

[0047] In one embodiment of this utility model, a walkway 11 is also included. The walkway 11 is erected above the two sets of extension paths 6, providing workers with a direct and convenient passageway. Workers can quickly reach various areas of the rainwater storage structure through the walkway 11 to carry out daily inspections, equipment maintenance, plant care, and other tasks. This avoids workers directly stepping on the slope 5 or other structural parts, reducing the risk of damage to the structure and vegetation.

[0048] In one embodiment of this utility model, the aquatic plant 12 can be one or a combination of reeds, cattails, loosestrife, calamus, water celery and water spinach.

[0049] Specifically, reeds have a strong root system that effectively anchors the soil and absorbs nutrients such as nitrogen and phosphorus from rainwater. Cattails have a certain adsorption capacity for heavy metals. Lythrum salicaria not only purifies water but also has high ornamental value. Sweet flag secretes bactericidal substances, improving the aquatic microbial environment. Water celery and water spinach grow rapidly and can quickly absorb pollutants from the water. The combination of various aquatic plants can form a richer ecosystem, purifying rainwater from different angles, improving purification efficiency, and enhancing the stability and diversity of the ecosystem.

[0050] In one embodiment of this utility model, the herbaceous plant 13 can be one or more of the following: bermudagrass, red fescue, ryegrass, bahiagrass, alfalfa and Kentucky bluegrass, and these herbaceous plants 13 have different growth characteristics and advantages.

[0051] Specifically, Bermuda grass has a well-developed root system, is resistant to trampling, and can quickly form a dense turf. Red fescue is highly cold-resistant and maintains good growth even in low temperatures. Ryegrass grows rapidly and can cover the ground quickly. Bahia grass is drought-tolerant, tolerant of poor soil, and highly adaptable. Alfalfa has nitrogen-fixing properties and can improve soil fertility. Kentucky bluegrass is shade-tolerant and can grow under different light conditions. Planting these various herbaceous plants in combination on slope 5 can fully utilize their respective advantages, increase the vegetation cover of slope 5, enhance its protective capacity, effectively prevent soil erosion, and adapt to different climates and soil conditions.

[0052] When it rains, rainwater flows from the slope 5 to the pit 3. Nitrogen and phosphorus in the rainwater enter the soil. The aquatic plants 13 inside the pit 3 purify the water. In order to absorb nutrients, the aquatic plants 13 will absorb nitrogen and phosphorus, thus reducing the nitrogen and phosphorus in the water. The pit 3 is connected to the reservoir 1, and rainwater will flow into the reservoir 1 for storage. When the downhill slope needs to be replenished with water, the flat gate 8 between the regulating slope 7 and the reservoir 1 can be opened to allow the water in the reservoir 1 to flow downhill for storage.

[0053] In case of heavy rain, the cover plate 2 and the flat gate 8 can be opened to allow the water to flow quickly downhill.

[0054] In summary, the sponge city river rainwater regulation and storage structure of this utility model embodiment forms a multi-level purification system through the deep purification of grass plants 13 on the slope 5 and aquatic plants 12 in the pit 3, which can effectively meet the increasingly stringent water environment quality requirements and significantly improve rainwater quality.

[0055] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0057] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A sponge city river rainwater regulation and storage structure, characterized in that, include: A water storage tank (1) is provided with a cover plate (2) on the top surface of the water storage tank (1). Pit (3), pit (3) is provided on both sides of the water storage tank (1), a partition wall (4) is provided between the water storage tank (1) and the pit (3), the pit (3) is connected to the water storage tank (1), the bottom of the pit (3) and the water storage tank (1) is soil, and aquatic plants (12) are planted in the pit (3). The slope (5) is connected to the pit (3) at its lower edge, and grass plants (13) are planted in the slope (5). The regulating slope (7) is located at the outlet of the water storage tank (1).

2. The sponge city river rainwater regulation and storage structure according to claim 1, characterized in that, Multiple sets of columns (9) are provided in the slope (5), and each column (9) has an implantation cavity. The opening of the column (9) is set in an inclined structure.

3. The sponge city river rainwater regulation and storage structure according to claim 1, characterized in that, Multiple sets of partitions (10) are provided on the slope (5).

4. The sponge city river rainwater regulation and storage structure according to claim 1, characterized in that, The partition (4) is pivotally connected to one side of the cover plate (2).

5. The sponge city river rainwater regulation and storage structure according to claim 1, characterized in that, It also includes an extension road (6), which is located on the upper slope side of the slope (5); It also includes a walkway (11) which is erected above the two sets of extensions (6).

6. The sponge city river rainwater regulation and storage structure according to claim 1, characterized in that, The regulating slope (7) is connected to the outlet of the water storage tank (1), and a gate (8) is provided between the regulating slope (7) and the water storage tank (1).

Images