Composite ecological revetment structure for reducing farmland non-point source pollution

Abstract

The utility model relates to the technical field of bank protection structures, in particular to a composite ecological bank protection structure for reducing farmland non-point source pollution, which comprises a protection plate, a field dam and a fixing rod fixedly mounted at the bottom of the protection plate. A reinforcing plate is fixedly installed at the end, away from the protection plate, of the arc filtering rod, an inclined flow guide groove is formed in the position, located on the upper side of the arc filtering rod, of the top of the protection plate, and a water diversion plate is fixedly installed at the position, located between the arc filtering rod and the inclined flow guide groove, of the top of the protection plate; and a filtering mechanism is arranged at the top of the protection plate and located on the lower side of the arc filtering rod, and under the action of the filtering mechanism, water entering the farmland can be filtered again, so that the negative influence of farmland pollution is further reduced, and meanwhile, some solid garbage can be filtered.

Description

Technical Field

[0001] This utility model relates to the field of revetment structure technology, and in particular to a composite ecological revetment structure for reducing non-point source pollution from farmland. Background Technology

[0002] With the advancement of agricultural modernization, the excessive use of chemical fertilizers and pesticides and changes in agricultural farming patterns have led to a large amount of non-point source pollutants from farmland, such as pesticides, chemical fertilizers, and soil particles, entering water bodies, causing water pollution and ecological imbalance.

[0003] Existing measures for preventing and controlling non-point source pollution in farmland mostly focus on field management and water flow interception, lacking effective soil and water environmental protection structures. As a result, a large amount of non-point source pollutants from farmland, such as pesticides, fertilizers, and soil particles, enter water bodies, causing water pollution, ecological imbalance, and seriously affecting crop growth. Therefore, we urgently need a composite ecological revetment structure that can both prevent soil erosion and reduce non-point source pollution from farmland. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: a composite ecological revetment structure for reducing non-point source pollution in farmland, comprising a protective plate and a field dam, and a fixing rod fixedly installed at the bottom of the protective plate. An arc-shaped filter rod is fixedly installed at the top center of the protective plate, and a reinforcing plate is fixedly installed at the end of the arc-shaped filter rod away from the protective plate. An inclined guide groove is formed on the top of the protective plate above the arc-shaped filter rod. A water-diverting plate is fixedly installed on the top of the protective plate between the arc-shaped filter rod and the inclined guide groove. A filtration mechanism is provided on the top of the protective plate below the arc-shaped filter rod. The fixing rod is inserted into the inside of the field dam. A groove is formed on the top of the field dam, and a purification mechanism is provided inside the groove.

[0005] As an improvement to the above technical solution, the filtration mechanism includes several symmetrical locking blocks. The symmetrical locking blocks are fixedly installed below the protective plate and located on the lower side of the arc-shaped filter rod. The inner side of the symmetrical locking blocks is movably locked with a first filter screen, a second filter screen, and an activated carbon plate, which are distributed sequentially from top to bottom. A limiting slot is opened on one side of the inner wall of the symmetrical locking block. A limiting locking block is fixedly installed on one side of each of the first filter screen, the second filter screen, and the activated carbon plate. The limiting slot is movably locked with the limiting locking block.

[0006] As an improvement to the above technical solution, the opening of the inclined guide groove at the end near the arc filter rod is smaller than the opening at the end away from the arc filter rod, and the diameter of the circular hole of the first filter screen is larger than the diameter of the circular hole of the second filter screen.

[0007] As an improvement to the above technical solution, the end of the water-guiding plate near the arc-shaped filter rod is located directly above the arc-shaped bottom surface of the arc-shaped filter rod.

[0008] As an improvement to the above technical solution, the purification mechanism includes a gravel layer set at the bottom of the groove, and an ecological plant layer set at the upper end of the gravel layer. The ecological plant layer includes aquatic plants adapted to wetland environments and pollution-resistant plants. The gravel layer includes permeable natural stone and sand.

[0009] As an improvement to the above technical solution, a number of arc-shaped guide grooves are provided on the side of the groove near the protective plate, and the arc-shaped guide grooves are located obliquely above the inclined guide grooves.

[0010] The beneficial effects of this utility model are as follows: By opening a groove at the top of the field dam and setting a purification mechanism inside the groove, the water flowing into the farmland can be purified for the first time, thereby reducing pollutants in the water, such as pesticides and fertilizers, and reducing the amount of non-point source pollution entering the farmland. A filtration mechanism is set on one side of the field dam, which can filter the water entering the farmland again, thereby further reducing the negative impact of farmland pollution and filtering some solid waste. Attached Figure Description

[0011] Figure 1 This is the main view of the ecological bank protection structure of this utility model;

[0012] Figure 2 This is a cross-sectional view of the internal structure of this utility model;

[0013] Figure 3 This utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0014] Figure 4 This utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0015] Reference numerals: 1. Protective plate; 11. Fixing rod; 2. Arc-shaped filter rod; 21. Reinforcing plate; 22. Inclined guide channel; 23. Water diversion plate; 3. Symmetrical locking block; 31. First filter screen; 32. Limiting slot; 33. Limiting block; 34. Second filter screen; 35. Activated carbon plate; 4. Groove; 41. Crushed stone layer; 42. Ecological plant layer; 43. Arc-shaped guide channel; 5. Field dam. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0017] Please see Figure 1-4 This utility model provides a technical solution: a composite ecological revetment structure for reducing non-point source pollution in farmland, including a protective plate 1 and a field dam 5, and a fixing rod 11 fixedly installed at the bottom of the protective plate 1. An arc-shaped filter rod 2 is fixedly installed at the middle of the top of the protective plate 1. A reinforcing plate 21 is fixedly installed at the end of the arc-shaped filter rod 2 away from the protective plate 1. An inclined guide groove 22 is opened on the top of the protective plate 1 above the arc-shaped filter rod 2. A water-guiding plate 23 is fixedly installed on the top of the protective plate 1 between the arc-shaped filter rod 2 and the inclined guide groove 22. A filtration mechanism is set on the top of the protective plate 1 below the arc-shaped filter rod 2. The fixing rod 11 is inserted into the inside of the field dam 5. A groove 4 is opened on the top of the field dam 5. A purification mechanism is set inside the groove 4.

[0018] In this embodiment, a groove 4 is opened at the top of the field dam 1, and a purification mechanism is set inside the groove 4. Under the action of the purification mechanism, the water flowing into the farmland can be purified for the first time, thereby reducing pollutants in the water, such as pesticides and fertilizers, and reducing the amount of non-point source pollution entering the farmland. A filtration mechanism is set on one side of the field dam 1. Under the action of the filtration mechanism, the water entering the farmland can be filtered again, thereby further reducing the negative impact of farmland pollution, and can also filter some solid waste.

[0019] Specifically, the filtration mechanism includes several symmetrical locking blocks 3. The symmetrical locking blocks 3 are fixedly installed below the protective plate 1 and located on the lower side of the arc-shaped filter rod 2. The inner side of the symmetrical locking blocks 3 is movably locked with a first filter screen 31, a second filter screen 34, and an activated carbon plate 35, which are distributed from top to bottom. A limiting groove 32 is opened on one side of the inner wall of the symmetrical locking blocks 3. A limiting block 33 is fixedly installed on one side of the first filter screen 31, the second filter screen 34, and the activated carbon plate 35. The limiting groove 32 is movably locked with the limiting block 33. The opening of the inclined guide groove 22 near the arc-shaped filter rod 2 is smaller than the opening away from the arc-shaped filter rod 2, and the diameter of the circular hole of the first filter screen 31 is larger than the diameter of the circular hole of the second filter screen 34.

[0020] In this embodiment, the water purified by the purification mechanism enters the filtration mechanism through the action of the first filter screen 31, the second filter screen 34, and the activated carbon plate 35. It first passes through the first filter screen 31 for initial filtration, which can filter out most of the large particles in the water. Then it passes through the second filter screen 34 for further filtration, which can filter out small particles in the water. Subsequently, it passes through the activated carbon plate 35 to adsorb harmful substances in the water, thereby reducing the negative impact of farmland pollution. The inclined guide channel 22 plays a role in converging the water.

[0021] Specifically, the end of the water-guiding plate 23 near the arc-shaped filter rod 2 is located directly above the arc-shaped bottom surface of the arc-shaped filter rod 2.

[0022] In this embodiment, rainwater flowing down through the water-guiding plate 23 can wash away the debris on the arc-shaped filter rod 2.

[0023] Specifically, the purification mechanism includes a gravel layer 41 set at the bottom of the groove 4, an ecological plant layer 42 set at the top of the gravel layer, the ecological plant layer 42 includes aquatic plants adapted to wetland environment and pollution-resistant plants, and a number of arc-shaped guide channels 43 are opened on the side of the groove 4 near the protective plate 1, and the arc-shaped guide channels 43 are located obliquely above the inclined guide channel 22.

[0024] In this embodiment, the aquatic plants and pollution-resistant plants adapted to wetland environments in the ecological plant layer 42 include reeds, calamus, water onions, and duckweed. Reeds are widely distributed in wetlands and have good water purification functions, capable of absorbing pollutants such as nitrogen and phosphorus in the water and reducing eutrophication. Calamus often grows in wetlands and has strong water purification functions, capable of absorbing heavy metals and organic pollutants in the water. Water onions are aquatic plants that can effectively absorb pollutants in the water and improve the ecological environment of the water body. Duckweed is a floating plant with strong water purification capabilities, capable of absorbing nutrients and pollutants in the water and reducing water pollution. Thus, under the action of the ecological plant layer 42, the water flowing to the farmland can undergo initial purification treatment, thereby reducing pollutants in the water, purifying pollutants such as pesticides and fertilizers in the water, and reducing the amount of non-point source pollution entering the farmland. The gravel layer 41 is composed of permeable natural stone, sand, plant roots, and other natural materials, which can effectively filter suspended solids and some harmful substances in the water flow.

[0025] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A composite ecological revetment structure for reducing non-point source pollution in farmland, comprising a protective plate (1) and a field embankment (5), and a fixing rod (11) fixedly installed at the bottom of the protective plate (1), characterized in that: A circular arc filter rod (2) is fixedly installed at the middle of the top of the protective plate (1). A reinforcing plate (21) is fixedly installed at the end of the circular arc filter rod (2) away from the protective plate (1). An inclined guide groove (22) is opened on the top of the protective plate (1) above the circular arc filter rod (2). A water-guiding plate (23) is fixedly installed on the top of the protective plate (1) between the circular arc filter rod (2) and the inclined guide groove (22). A filtration mechanism is set on the top of the protective plate (1) below the circular arc filter rod (2). A fixing rod (11) is inserted into the inside of the field dam (5). A groove (4) is opened on the top of the field dam (5). A purification mechanism is set inside the groove (4).

2. The composite ecological revetment structure for reducing non-point source pollution in farmland according to claim 1, characterized in that: The filtration mechanism includes several symmetrical locking blocks (3). The symmetrical locking blocks (3) are fixedly installed below the protective plate (1) and located on the lower side of the arc filter rod (2). The inner side of the symmetrical locking blocks (3) is movably locked with a first filter screen (31), a second filter screen (34), and an activated carbon plate (35). The first filter screen (31), the second filter screen (34), and the activated carbon plate (35) are distributed from top to bottom. A limiting slot (32) is opened on one side of the inner wall of the symmetrical locking block (3). A limiting block (33) is fixedly installed on one side of the first filter screen (31), the second filter screen (34), and the activated carbon plate (35). The limiting slot (32) and the limiting block (33) are movably locked.

3. A composite ecological revetment structure for reducing non-point source pollution in farmland according to claim 2, characterized in that: The opening of the inclined guide groove (22) near the arc filter rod (2) is smaller than the opening away from the arc filter rod (2), and the diameter of the hole of the first filter screen (31) is larger than the diameter of the hole of the second filter screen (34).

4. A composite ecological revetment structure for reducing non-point source pollution in farmland according to claim 1, characterized in that: The end of the water-guiding plate (23) near the arc filter rod (2) is located directly above the arc bottom surface of the arc filter rod (2).

5. A composite ecological revetment structure for reducing non-point source pollution in farmland according to claim 1, characterized in that: The purification mechanism includes a gravel layer (41) set at the bottom of the groove (4), and an ecological plant layer (42) set at the upper end of the gravel layer. The ecological plant layer (42) includes aquatic plants adapted to wetland environment and pollution-resistant plants. The gravel layer (41) includes permeable natural stone and sand.

6. A composite ecological revetment structure for reducing non-point source pollution in farmland according to claim 5, characterized in that: The groove (4) has several arc-shaped guide grooves (43) on the side near the protective plate (1), and the arc-shaped guide grooves (43) are located obliquely above the inclined guide groove (22).

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