Sunken type greenbelt rainwater collecting and sprinkling irrigation system

Abstract

The utility model relates to the field of sunken greenbelt construction, and discloses a sunken greenbelt rainwater collection sprinkling irrigation system which comprises a water seepage well lid and a system top, a sprinkling irrigation shower head is connected to the center of the top of the water seepage well lid in a matched mode, and a cement mortar masonry is arranged at a well mouth of a seepage well. Water permeable bricks are laid on the top of the cement mortar masonry. The water filtering layers are laid on the two sides of the foundation pit, and the output end of the water pumping pump is connected with the sprinkling irrigation shower head in a matched mode; the top end of the water pumping pipe is connected with the input end of the water pumping pump in a matched mode. The two ends of the water seepage pipe are coated with water-permeable geotextile; and the concrete base is located at the bottom of the foundation pit, and inverted filter geotechnical cloth is laid on the top of the concrete base. The water filtering layer and the permeable geotextile are used for collaborative filtering, rainwater is temporarily stored through the seepage well, and the bottom of the seepage well and the sprinkling irrigation shower heads on the top of the well lid are directly connected through the water pumping pipe, so that rainwater collection, storage and utilization are achieved.

Description

Technical Field

[0001] This utility model relates to the field of sunken green space construction, specifically a sunken green space rainwater collection and sprinkler irrigation system. Background Technology

[0002] In the process of urbanization, large amounts of rainwater are directly discharged into urban drainage networks, leading to frequent urban flooding during periods of heavy rainfall. Establishing rainwater harvesting systems within cities to recycle and utilize rainwater has significant environmental value. Sunken green spaces, as a key element of sponge city construction, refer to green areas whose surface is covered by vegetation and located at a certain depth below the surrounding paved surfaces or roads. These green spaces possess a certain storage capacity, effectively regulating and purifying runoff rainwater. They include various forms such as bioretention facilities, infiltration ponds, wetlands, rainwater wetlands, and regulating ponds.

[0003] However, existing sunken green space rainwater management technologies have low water discharge efficiency, which often leads to the death of plants due to prolonged flooding. The implementation process of rainwater reuse systems is complex, which not only increases the technical difficulty but also leads to high cost.

[0004] Based on this, this utility model designs a sunken green space rainwater collection and sprinkler irrigation system to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a sunken green space rainwater harvesting and sprinkler irrigation system to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a sunken green space rainwater harvesting and sprinkler irrigation system, comprising:

[0007] A seepage well cover is located at the top of the system, and a sprinkler head is matched and connected at the center of the top of the seepage well cover for rainwater inflow and irrigation spraying.

[0008] The seepage well is located at the center of the foundation pit of the sunken green space. The wellhead of the seepage well is equipped with cement mortar masonry, and the top of the cement mortar masonry is covered with permeable bricks.

[0009] A filter layer is laid on both sides of the foundation pit for primary filtration;

[0010] A water pump is installed in the hollow box structure inside the cement mortar masonry, and the output end of the water pump is matched and connected to the sprinkler head.

[0011] A water pumping pipe, the top end of which is connected to the input end of the water pump, and the bottom end of which extends to the bottom of the seepage well for pumping out stored rainwater.

[0012] The seepage pipe is laid horizontally on both sides of the top of the foundation pit, and its end near the seepage well penetrates the cement mortar masonry and is connected to the seepage well. Both ends of the seepage pipe are covered with permeable geotextile.

[0013] A concrete base is located at the bottom of the foundation pit, and a geotextile filter is laid on top of the concrete base.

[0014] Preferably, the seepage well cover is supported and connected to the wellhead of the seepage well by the cement mortar masonry, and permeable bricks are provided between the seepage well cover and the cement mortar masonry.

[0015] Preferably, the filter layer is a pebble layer, the pebble size of which is 10-20mm, and the filter layer covers the end of the seepage pipe away from the seepage well.

[0016] Preferably, the sprinkler head is connected to the bottom of the seepage well via a water pump and a water pipe.

[0017] Preferably, a cement mortar layer is provided on the inner wall of the seepage well, and the top of the cement mortar layer is bonded to the cement mortar masonry.

[0018] Preferably, a geotextile filter is laid between the concrete base and the pit, and the geotextile filter and the pit wall together support the seepage well.

[0019] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0020] I. This utility model utilizes a seepage well, a seepage well cover, a concrete base, a pumping pipe, a seepage pipe, a pumping pump, and a sprinkler head to work together. It employs a filter layer and permeable geotextile to synergistically filter rainwater in sunken green spaces. Rainwater is temporarily stored in the seepage well, and the pumping pipe directly connects the bottom of the seepage well to the sprinkler head on top of the well cover, achieving rainwater "collection-storage-utilization." This not only effectively reduces runoff and alleviates urban flooding, but also promotes rainwater infiltration, increases soil moisture content, thereby reducing the water demand for green space irrigation and helping to replenish groundwater resources. Furthermore, pollutants such as nitrogen and phosphorus carried in the runoff can be converted into nutrients needed for plant growth, thus promoting vegetation growth.

[0021] II. This utility model collects rainwater through sunken green spaces, reducing the pressure on urban drainage networks, alleviating urban flooding, physically purifying rainwater for use in green space sprinkler irrigation, reducing the water demand for green space sprinkler irrigation, enhancing the ecological function of green spaces, and improving the local microclimate. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a partial structural schematic diagram of the present invention.

[0024] The components include: 1. seepage well cover; 2. sprinkler head; 3. seepage well; 4. cement mortar masonry; 5. permeable brick; 6. filter layer; 7. water pump; 8. pumping pipe; 9. seepage pipe; 10. permeable geotextile; 11. concrete base; 12. reverse filter geotextile; and 13. cement mortar masonry layer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Please see Figures 1-2 Example 1 illustrates a sunken green space rainwater harvesting and sprinkler irrigation system, comprising:

[0028] A seepage well cover 1 is located at the top of the system. A sprinkler 2 is connected to the center of the top of the seepage well cover 1 for rainwater inflow and irrigation spraying.

[0029] The seepage well 3 is located at the center of the foundation pit of the sunken green space. The wellhead of the seepage well 3 is equipped with cement mortar masonry 4, and the top of the cement mortar masonry 4 is covered with permeable bricks 5.

[0030] Filter layer 6 is laid on both sides of the foundation pit for primary filtration;

[0031] A water pump 7 is installed in a hollow box structure inside a cement mortar masonry 4, and the output end of the water pump 7 is matched with a sprinkler head 2.

[0032] The top end of the pumping pipe 8 is connected to the input end of the pumping pump 7, and the bottom end of the pumping pipe 8 extends to the bottom of the seepage well 3 for pumping out stored rainwater.

[0033] The seepage pipe 9 is laid horizontally on both sides of the top of the foundation pit, and its end near the seepage well 3 penetrates the cement mortar masonry 4 and is connected to the seepage well 3. Both ends of the seepage pipe 9 are covered with permeable geotextile 10.

[0034] A concrete base 11 is located at the bottom of the foundation pit, and a geotextile filter 12 is laid on top of the concrete base 11.

[0035] Please see Figure 2The seepage well cover 1 in the figure is supported and connected to the wellhead of the seepage well 3 by cement mortar masonry 4, and permeable bricks 5 are set between the seepage well cover 1 and the cement mortar masonry 4.

[0036] In this embodiment, rainwater permeates through the infiltration well cover 1 to the permeable bricks 5 at the bottom, and then flows into the infiltration well 3. A portion of the rainwater is filtered by the filter layer 6 and flows into the horizontally arranged infiltration pipe 9. The filtered water eventually flows into the infiltration well 3. The infiltration well 3 is used to store rainwater that has been filtered twice by the pebble filter layer 6 and the permeable geotextile 10, which can remove silt and pollutants. The permeable bricks 5 prevent the accumulation of silt. When sprinkler irrigation is needed, the water pump 7 is powered on and started, and clean water is drawn from the bottom of the infiltration well 3 through the pumping pipe 8. The water is then delivered to the sprinkler 2 near the infiltration well cover 1 for greening irrigation. This system can effectively remove water accumulated in the foundation pit and has the advantages of simple construction, short cycle, saving construction costs, safety and environmental protection. In addition, its structure is safe and reliable and easy to maintain.

[0037] Specifically, a seepage well 3 is installed in the foundation pit of the sunken green space water accumulation area. When the accumulated water flows into the seepage well 3 through the seepage well cover 1, the water level drops. The seepage pipe 9 installed on the well wall of the seepage well 3 can quickly drain the water in the green space below the well opening, thus avoiding the phenomenon of plants in the green space dying from long-term waterlogging. The seepage pipe 9 is located at the bottom of both ends of the seepage well 3. The top left and right sides of the seepage well 3 are equipped with a filter layer 6 to cover the seepage pipe 9. Rainwater near the seepage well cover 1 seeps into the seepage well 3 through the filter layer 6. The filter layer 6 serves the functions of seepage and aesthetics of covering the seepage pipe 9.

[0038] Example 2

[0039] Please see Figure 2 Example 2 is an illustration of Example 1. In the illustration, the filter layer 6 is a pebble layer with a pebble diameter of 10-20 mm. The filter layer 6 covers the end of the seepage pipe 9 away from the seepage well 3.

[0040] Furthermore, the sprinkler head 2 is connected to the bottom of the seepage well 3 via the water pump 7 and the water pipe 8;

[0041] In this embodiment, the distance from the wellhead of the seepage well 3 to the bottom of the pit is 20-25cm. The permeable geotextile 10 is made of 300g / m2 geotextile. The permeable geotextile 10 covers both ends of the seepage pipe 9, which can filter out small particles of mud and sand, prevent the seepage pipe 9 from being blocked, and to ensure that the seepage pipe 9 is installed firmly, the contact parts between the two ends of the seepage pipe 9 and the well wall are filled with cement mortar.

[0042] It should be noted that the seepage pipe 9 uses a PE pipe with a diameter of 4-8CM. The pebble layer consists of a crushed stone filter layer and a pebble filter layer, which can filter out large particles of mud and sand. Furthermore, pebbles are easy to obtain, transport, and are low in cost and aesthetically pleasing.

[0043] Example 3

[0044] Please see Figure 1 Example 3 is described below. This embodiment further illustrates Example 2. In the figure, a cement mortar layer 13 is provided on the inner wall of the seepage well 3. The top of the cement mortar layer 13 is bonded to the cement mortar masonry 4.

[0045] Furthermore, a reverse filter geotextile 12 is laid between the concrete base 11 and the foundation pit, and the reverse filter geotextile 12 and the foundation pit wall together support the seepage well 3.

[0046] In this embodiment, the inner wall of the seepage well 3 is a cement mortar masonry layer 13 of M7.5, and the outer side of the inner wall is bonded with cement mortar masonry 4 of MU10. The concrete base 11 below the bottom of the seepage well 3 is composed of a concrete layer and a C15 fine stone concrete layer, which is used to increase the bearing capacity of the foundation and ensure the stability of the overall structure of the seepage well 3. It will not cause the structure to collapse or be damaged due to excessive water flow.

[0047] It should be noted that the construction can be carried out during the construction of overflow well 3, or after overflow well 3 is formed. All materials are construction materials, which can effectively drain water accumulated in the foundation pit and solve the problem that rainwater cannot be discharged from the sunken green space in time after the rain flood peak.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sunken green space rainwater harvesting and sprinkler irrigation system, characterized in that, include: A seepage well cover (1) is located at the top of the system. A sprinkler head (2) is matched and connected at the center of the top of the seepage well cover (1) for rainwater inflow and irrigation spraying. The seepage well (3) is located at the center of the foundation pit of the sunken green space. The wellhead of the seepage well (3) is provided with cement mortar masonry (4), and the top of the cement mortar masonry (4) is covered with permeable bricks (5). A filter layer (6) is laid on both sides of the pit for primary filtration; A water pump (7) is installed in the empty box structure inside the cement mortar masonry (4), and the output end of the water pump (7) is matched and connected to the sprinkler head (2); A water pumping pipe (8) is provided, the top end of which is connected to the input end of the water pump (7), and the bottom end of the water pumping pipe (8) extends to the bottom of the seepage well (3) for extracting stored rainwater. The seepage pipe (9) is laid horizontally on both sides of the top of the foundation pit, and one end of it close to the seepage well (3) penetrates the cement mortar masonry (4) and is connected to the seepage well (3). Both ends of the seepage pipe (9) are covered with permeable geotextile (10). A concrete base (11) is located at the bottom of the foundation pit, and a geotextile (12) is laid on top of the concrete base (11).

2. A sunken green space rainwater harvesting and sprinkler irrigation system according to claim 1, characterized in that: The seepage well cover (1) is supported and connected to the wellhead of the seepage well (3) by the cement mortar masonry (4), and a permeable brick (5) is provided between the seepage well cover (1) and the cement mortar masonry (4).

3. A sunken green space rainwater harvesting and sprinkler irrigation system according to claim 1, characterized in that: The filter layer (6) is a pebble layer with a pebble diameter of 10-20 mm. The filter layer (6) covers the end of the seepage pipe (9) away from the seepage well (3).

4. A sunken green space rainwater harvesting and sprinkler irrigation system according to claim 1, characterized in that: The sprinkler head (2) is connected to the bottom of the seepage well (3) via a water pump (7) and a water pipe (8).

5. A sunken green space rainwater harvesting and sprinkler irrigation system according to claim 1, characterized in that: The inner wall of the seepage well (3) is provided with a cement mortar masonry layer (13), and the top of the cement mortar masonry layer (13) is bonded to the cement mortar masonry (4).

6. A sunken green space rainwater harvesting and sprinkler irrigation system according to claim 1, characterized in that: A reverse filter geotextile (12) is laid between the concrete base (11) and the foundation pit, and the reverse filter geotextile (12) and the foundation pit wall together support the seepage well (3).

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