Prefabricated composite ecological water purification vegetated swale structure

Abstract

This utility model relates to the field of vegetated swale technology and discloses a prefabricated composite ecological water purification vegetated swale structure, including a concrete trench with a perforated overflow pipe inside and a filter screen at the outlet to prevent impurities from clogging and to achieve overflow water control. The upper surface of the trench is covered with bark mulch, which reduces soil moisture evaporation, suppresses weeds, and provides an attachment environment for microorganisms. A microbial delivery tube is inserted into the inner cavity of the trench for targeted delivery of microorganisms to promote the decomposition of organic matter. The planting soil is placed on the lower surface of the bark mulch, with a gravel filter layer at its bottom, forming a multi-stage filtration system for initial impurity removal. A wire mesh partition layer is located at the bottom of the gravel filter layer, below which is a non-woven fabric filter layer for further filtration. A water storage tank is located at the bottom of the inner cavity of the trench to store water and regulate water flow. This structure achieves ecological water purification through multi-stage filtration, microbial synergy, and water storage regulation, and the concrete trench facilitates prefabricated installation.

Description

Technical Field

[0001] This utility model relates to the field of grassed swale technology, specifically to a prefabricated composite ecological water purification grassed swale structure. Background Technology

[0002] Ecological water purification vegetated swale structures are mainly used in urban rainwater management, runoff pollution control, and ecological restoration. They achieve water purification and storage functions by combining natural filtration with artificial structures.

[0003] Traditional vegetated swales often use natural soil trenches or simple concrete trenches, resulting in low prefabrication and poor installation efficiency. Overflow pipes are simply designed, lacking effective anti-clogging and overflow control measures, making them prone to blockage by impurities or excessively rapid water flow, leading to poor drainage or overflow. Surface coverings have limited functionality, failing to simultaneously suppress weed growth, reduce water evaporation, and provide an attachment environment for microorganisms. Microbial introduction methods are inconvenient, making it difficult to selectively replenish the microbial communities needed for purification, thus affecting the efficiency of organic matter decomposition. Filtration systems often rely on a single filter layer, resulting in insufficient filtration levels and limited removal of suspended solids and dissolved pollutants in the water. Furthermore, the lack of water storage and regulation design means that excessively high instantaneous water flow can lead to insufficient purification and overflow pollution problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a prefabricated composite ecological water purification vegetated swale structure to solve the problems of insufficient purification and easy overflow pollution mentioned in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated composite ecological water purification vegetated swale structure, comprising:

[0006] A concrete trench, wherein a perforated overflow pipe is installed inside the concrete trench, and a filter screen is installed at the outlet of the perforated overflow pipe;

[0007] A bark covering is placed on the upper surface of a concrete trench, and a microbial delivery tube is inserted into the inner cavity of the concrete trench.

[0008] Planting soil is placed on the lower surface of the bark mulch, and a gravel filter layer is installed at the bottom of the planting soil;

[0009] A wire mesh partition layer is set at the bottom of the gravel filter layer. A non-woven fabric filter layer is installed at the bottom of the wire mesh partition layer. Rivets are installed on the upper surface of the wire mesh partition layer. A water storage tank is opened in the lower part of the inner cavity of the concrete trench. The lower end of the microbial delivery pipe is connected to the water storage tank.

[0010] Preferably, a support plate is installed on the upper part of the inner cavity of the concrete trench. The surface of the support plate is evenly distributed with through holes. The support plate is made of lightweight and high-strength material, which reduces its own weight and pressure on the concrete trench while ensuring sufficient support. The shape and size of the through holes are optimized to meet the needs of water flow and allow for planting.

[0011] Preferably, a filter cylinder is installed at the outlet of the perforated overflow pipe, and the filter screen is installed at the outlet of the filter cylinder. The filter cylinder is made of corrosion-resistant and high-strength material, and its internal structure is specially designed to have a large filtration area, which can effectively intercept impurities and pollutants in the water. At the same time, the material of the filter screen is carefully selected to have high filtration accuracy, which can further purify the water quality and ensure that the discharged water meets environmental protection requirements.

[0012] Preferably, the surface of the filter screen is equipped with an installation ring, and bolts are evenly distributed on the surface of the installation ring. The installation ring is made of a sturdy and durable material, and its shape is adapted to the filter screen so that it can fit the filter screen tightly. The bolts are made of high-strength and rust-proof material. Through reasonable layout and fastening method, it is ensured that the filter screen is firmly installed on the filter cylinder and is not easy to loosen or fall off.

[0013] Preferably, positioning plates are evenly distributed on the surface of the filter cartridge, and waterproof cloth is installed between the positioning plates. The positioning plates are made of materials with certain elasticity and strength, which can be flexibly adjusted according to the shape of the filter cartridge to ensure the flatness and tightness of the waterproof cloth installation. The waterproof cloth has good waterproof performance and corrosion resistance, which can effectively prevent water leakage, protect the surrounding environment, and extend the service life of the filter cartridge.

[0014] Preferably, the surface of the filter cartridge is uniformly provided with springs, and the output ends of the springs are all connected to the surface of the positioning plate. They have good elasticity and durability, and can absorb energy through their own elastic deformation when the filter cartridge is subjected to external force, thereby reducing the impact on the positioning plate and the waterproof cloth. At the same time, they ensure that the positioning plate always applies a certain pressure to the waterproof cloth, keeping it in a tight fit.

[0015] Preferably, the surface of the wire mesh partition layer is equipped with sealing strips, which are in close contact with the inner wall of the concrete trench. The sealing strips are made of high-performance sealing material, which has good elasticity and sealing performance. They can adapt to the small gaps between the wire mesh partition layer and the inner wall of the concrete trench, effectively preventing water and impurities from passing through the gaps, ensuring the relative independence between each layer, and improving the purification effect of the entire grassed swale structure.

[0016] Preferably, a load-bearing plate is installed in the lower part of the inner cavity of the concrete trench, the planting soil is placed on the upper surface of the load-bearing plate, and a permeable cloth is installed on the surface of the load-bearing plate. The load-bearing plate is made of high-strength, lightweight material, which can withstand the weight of the planting soil and plants while ensuring its own stability. The permeable cloth has good water permeability and air permeability, which allows water to pass through smoothly while preventing the planting soil from being lost, maintaining the stability of the planting soil, and providing good conditions for plant growth.

[0017] More preferably, it includes several concrete trenches, which are laid sequentially along the length direction, and the length of each concrete trench is 2-4m.

[0018] Compared with the prior art, this utility model provides a prefabricated composite ecological water purification vegetated swale structure, which has the following beneficial effects:

[0019] This prefabricated composite ecological water purification vegetated swale structure uses a concrete trench as the main structure to provide stable support and facilitate assembly. Internal perforated overflow pipes, combined with outlet filter screens, effectively prevent impurities from clogging the pipes, while the perforated design allows for overflow to control water flow. Bark mulch covers the upper surface of the trench, reducing soil moisture evaporation, inhibiting weed growth, and providing an attachment environment for microorganisms. Microbial delivery pipes are inserted into the trench cavity for targeted delivery of microorganisms to promote organic matter decomposition and enhance water purification. The planting soil and bottom gravel filter layer form a multi-stage filtration structure. Soil adsorption and gravel gap filtration initially remove impurities from the water, while wire mesh and non-woven fabric filter layers further filter. A water storage tank stores some water, regulating the water flow rate and preventing insufficient purification or overflow due to excessive instantaneous water volume. The overall structure achieves highly efficient ecological water purification through multi-stage filtration, microbial synergy, and water storage regulation.

[0020] This new solution uses precast concrete trenches, which facilitates better control over construction progress and quality. The modular assembly also makes later inspection and maintenance easier. Furthermore, by enhancing the rainwater retention capacity of the vegetated swales, it alleviates pressure on the municipal stormwater drainage network, and by introducing microorganisms through microbial delivery pipes, it manages the retained water and prevents the breeding of mosquitoes in summer. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic cross-sectional view of the microbial delivery tube of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the filter cartridge of this utility model;

[0025] Figure 5 This is a schematic diagram of the installation structure of the positioning plate of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the nonwoven filter layer of this utility model;

[0027] Figure 7 This is a structural schematic diagram of the load-bearing plate of this utility model;

[0028] Figure 8 This is a cross-sectional structural diagram of the present invention;

[0029] Figure 9 This is a top view of the structure of this utility model;

[0030] Figure 10 This is a schematic diagram of the structure for the application of this utility model in a grassy swale scenario.

[0031] In the diagram: 1. Concrete trench; 2. Perforated overflow pipe; 3. Bark mulch; 4. Microbial inoculation pipe; 5. Planting soil; 6. Crushed stone filter layer; 7. Wire mesh partition layer; 8. Non-woven fabric filter layer; 9. Rivet; 10. Water storage tank; 11. Support plate; 12. Through hole; 13. Filter cylinder; 14. Filter screen; 15. Mounting ring; 16. Bolt; 17. Positioning plate; 18. Waterproof cloth; 19. Spring; 20. Sealing strip; 21. Load-bearing plate; 22. Permeable cloth. Detailed Implementation

[0032] 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.

[0033] This utility model provides a technical solution: a prefabricated composite ecological water purification vegetated swale structure. Please refer to [link / reference]. Figure 1 Including concrete trench 1, please refer to Figure 2 The concrete trench 1 is equipped with a perforated overflow pipe 2, and the outlet of the perforated overflow pipe 2 is equipped with a filter screen 14.

[0034] Please see Figure 9 A bark covering 3 is placed on the upper surface of the concrete trench 1, and a microbial delivery tube 4 is inserted into the inner cavity of the concrete trench 1.

[0035] Please see Figure 8Planting soil 5 is placed on the lower surface of bark mulch 3, and a gravel filter layer 6 is installed at the bottom of planting soil 5.

[0036] The wire mesh separator layer 7 is located at the bottom of the gravel filter layer 6. Please refer to [link / reference]. Figure 6 A non-woven fabric filter layer 8 is installed at the bottom of the wire mesh partition layer 7, and rivets 9 are installed on the upper surface of the wire mesh partition layer 7. Please refer to [link / reference]. Figure 2 A water storage tank 10 is provided in the lower part of the inner cavity of the concrete trench 1, and the lower port of the microbial delivery pipe 4 is connected to the water storage tank 10.

[0037] The concrete trench 1 serves as the main structure, providing stable support and facilitating prefabricated installation. The internal perforated overflow pipe 2, in conjunction with the outlet filter screen 14, effectively prevents impurities from clogging the pipe, while the perforated design enables overflow to control water flow. Bark mulch 3 covers the upper surface of the trench, reducing moisture evaporation from the planting soil 5, inhibiting weed growth, and providing an attachment environment for microorganisms. A microbial dispensing pipe 4 is inserted into the trench cavity, facilitating the targeted dispensing of microorganisms to promote organic matter decomposition and enhance water purification. The planting soil 5 and the bottom gravel filter layer 6 form a multi-stage filtration structure, utilizing soil adsorption and... The gravel gap filtration initially removes impurities from the water; the wire mesh separator layer 7 is set at the bottom of the gravel filter layer 6 and fixed with the rivets 9 on its upper surface, which not only separates the upper and lower structures to prevent displacement, but also further filters through the wire mesh pores; the non-woven fabric filter layer 8 is located at the bottom of the wire mesh separator layer 7, and uses its fiber structure to adsorb fine particles, thereby improving the filtration accuracy; the water storage tank 10 in the lower part of the inner cavity of the trench can store some water, regulate the water flow rate, and avoid insufficient purification or overflow due to excessive instantaneous water volume. The overall structure achieves efficient ecological water purification function through multi-level filtration, microbial synergy, and water storage regulation.

[0038] Please see Figure 3 A support plate 11 is installed on the upper part of the inner cavity of the concrete trench 1. The surface of the support plate 11 is evenly distributed with through holes 12. The support plate 11 is made of lightweight and high-strength material. While ensuring sufficient support, it reduces its own weight and reduces the pressure on the concrete trench 1. The shape and size of the through holes 12 are optimized to meet the needs of water flow and also to allow for planting.

[0039] Please see Figure 1 A filter cylinder 13 is installed at the outlet of the perforated overflow pipe 2, and a filter screen 14 is installed at the outlet of the filter cylinder 13. The filter cylinder 13 is made of corrosion-resistant and high-strength material. Its internal structure is specially designed and has a large filtration area, which can effectively intercept impurities and pollutants in the water. At the same time, the material of the filter screen 14 is carefully selected and has high filtration accuracy, which can further purify the water quality and ensure that the discharged water meets environmental protection requirements.

[0040] Please see Figure 4 The surface of the filter screen 14 is equipped with an installation ring 15, and bolts 16 are evenly distributed on the surface of the installation ring 15. The installation ring 15 is made of a sturdy and durable material, and its shape is adapted to the filter screen 14 so that it can fit tightly against the filter screen 14. The bolts 16 are made of high-strength and rust-proof material. Through reasonable layout and fastening method, it is ensured that the filter screen 14 is firmly installed on the filter cylinder 13 and is not easy to loosen or fall off.

[0041] Positioning plates 17 are evenly distributed on the surface of the filter cartridge 13, and waterproof cloth 18 is installed between each positioning plate 17. The positioning plates 17 are made of materials with a certain degree of elasticity and strength, and can be flexibly adjusted according to the shape of the filter cartridge 13 to ensure the flatness and tightness of the waterproof cloth 18 installation. The waterproof cloth 18 has good waterproof performance and corrosion resistance, which can effectively prevent water leakage, protect the surrounding environment, and extend the service life of the filter cartridge 13.

[0042] Please see Figure 5 Springs 19 are evenly distributed on the surface of the filter cylinder 13. The output ends of the springs 19 are all connected to the surface of the positioning plate 17. They have good elasticity and durability. When the filter cylinder 13 is subjected to external force, it can absorb energy through its own elastic deformation, reduce the impact on the positioning plate 17 and the waterproof cloth 18, and at the same time ensure that the positioning plate 17 always applies a certain pressure to the waterproof cloth 18 to keep it in a tight fit.

[0043] Please see Figure 6 Sealing strips 20 are installed on the surface of the wire mesh partition layer 7. The sealing strips 20 are in close contact with the inner wall of the concrete trench 1. The sealing strips 20 are made of high-performance sealing material, which has good elasticity and sealing performance. They can adapt to the small gaps between the wire mesh partition layer 7 and the inner wall of the concrete trench 1, effectively preventing water and impurities from passing through the gaps, ensuring the relative independence between each layer, and improving the purification effect of the entire grass swale structure.

[0044] Please see Figure 3 A load-bearing plate 21 is installed at the lower part of the inner cavity of the concrete trench 1, and the planting soil 5 is placed on the upper surface of the load-bearing plate 21. Please refer to [link / reference]. Figure 7 The surface of the load-bearing plate 21 is covered with a permeable cloth 22. The load-bearing plate 21 is made of high-strength, lightweight material, which can withstand the weight of the planting soil 5 and the plants, while ensuring its own stability. The permeable cloth 22 has good water permeability and air permeability, which can allow water to pass through smoothly, while preventing the planting soil 5 from being lost, maintaining the stability of the planting soil 5, and providing good conditions for plant growth.

[0045] This embodiment includes several concrete trenches 1, which are laid sequentially along the length direction. The length of each concrete trench 1 is 2-4m, which facilitates the installation and maintenance of the concrete trenches 1.

[0046] Please see Figure 10 In this specific embodiment, rainwater first flows into the concrete trough 1 of the prefabricated composite ecological water purification vegetated swale, and then flows into the planting soil 5 through the through holes 12 of the support plate 11. The planting soil 5 and the bottom gravel filter layer 6 form a multi-stage filtration system to initially remove impurities. The wire mesh separator layer 7, with the help of rivets 9, fixes and separates the upper and lower layers, and its pores further filter the water. The surface sealing strip 20 prevents water and impurities from passing through the gaps. The non-woven fabric filter layer 8 uses its fiber structure to adsorb fine particles and improve the filtration accuracy. The filter cylinder 13 and filter screen 14 of the perforated overflow pipe 2 intercept impurities and pollutants in the water. Ring 15 and bolt 16 ensure the filter screen 14 is firmly installed; positioning plate 17 and waterproof cloth 18 prevent water leakage; spring 19 reduces external impact and ensures the waterproof cloth 18 fits tightly; bark mulch 3 reduces water evaporation from planting soil 5, inhibits weed growth, and provides an attachment environment for microorganisms; microorganism delivery pipe 4 delivers microorganisms in a targeted manner to promote the decomposition of organic matter; water storage tank 10 stores some water and regulates the water flow rate; load-bearing plate 21 bears the weight of planting soil 5 and plants; permeable cloth 22 ensures water passage and prevents the loss of planting soil 5; the overall structure achieves efficient ecological water purification function.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[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 prefabricated composite ecological water purification vegetated swale structure, characterized in that, include: A concrete trench (1) is provided with a perforated overflow pipe (2) installed inside the concrete trench (1), and a filter screen (14) is installed at the outlet of the perforated overflow pipe (2). A bark covering (3) is placed on the upper surface of a concrete trench (1), and a microbial delivery tube (4) is inserted into the inner cavity of the concrete trench (1). Planting soil (5) is placed on the lower surface of bark covering (3), and a gravel filter layer (6) is installed at the bottom of the planting soil (5); A wire mesh partition layer (7) is set at the bottom of the gravel filter layer (6). A non-woven fabric filter layer (8) is installed at the bottom of the wire mesh partition layer (7). Rivets (9) are installed on the upper surface of the wire mesh partition layer (7). A water tank (10) is opened in the lower part of the inner cavity of the concrete trench (1).

2. The prefabricated composite ecological water purification vegetated swale structure according to claim 1, characterized in that: A support plate (11) is installed on the upper part of the inner cavity of the concrete trench (1), and through holes (12) are evenly distributed on the surface of the support plate (11).

3. The prefabricated composite ecological water purification vegetated swale structure according to claim 1, characterized in that: The outlet of the perforated overflow pipe (2) is equipped with a filter cylinder (13), and the filter screen (14) is installed at the outlet of the filter cylinder (13).

4. The prefabricated composite ecological water purification vegetated swale structure according to claim 3, characterized in that: The surface of the filter screen (14) is fitted with an mounting ring (15), and bolts (16) are evenly distributed on the surface of the mounting ring (15).

5. The prefabricated composite ecological water purification vegetated swale structure according to claim 3, characterized in that: The surface of the filter cylinder (13) is evenly provided with positioning plates (17), and waterproof cloth layers (18) are installed between the positioning plates (17).

6. The prefabricated composite ecological water purification vegetated swale structure according to claim 5, characterized in that: Springs (19) are evenly distributed on the surface of the filter cylinder (13), and the output ends of the springs (19) are all connected to the surface of the positioning plate (17).

7. The prefabricated composite ecological water purification vegetated swale structure according to claim 1, characterized in that: The surface of the wire mesh partition layer (7) is fitted with sealing strips (20), and the sealing strips (20) are in close contact with the inner wall of the concrete trench (1).

8. The prefabricated composite ecological water purification vegetated swale structure according to claim 1, characterized in that: A load-bearing plate (21) is installed in the lower part of the inner cavity of the concrete trench (1), the planting soil (5) is placed on the upper surface of the load-bearing plate (21), and a permeable cloth (22) is installed on the surface of the load-bearing plate (21).

9. The prefabricated composite ecological water purification vegetated swale structure according to claim 1, characterized in that: It includes several concrete trenches (1), which are laid sequentially along the length direction, and the length of each concrete trench (1) is 2-4m.

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