Multi-stage sand blocking device for water and soil conservation

Abstract

The invention belongs to the technical field of river regulation, and particularly relates to a multi-stage sand blocking device for water and soil conservation, the multi-stage sand blocking device comprises a first-stage sand blocking structure, a second-stage sand blocking structure and a third-stage sand blocking structure, the first-stage sand blocking structure comprises a precipitation tank, the rear end of the precipitation tank is fixedly connected with a side table, the front side wall of the precipitation tank is fixedly connected with a filter plate, and the filter plate is fixedly connected with a filter screen. The front side wall of the filter plate is obliquely arranged, a first through opening is formed in the front side wall of the filter plate, and a first sand blocking net is fixedly arranged on the first through opening. The rainwater filtering device has the advantages that rainwater is filtered for the first time through the precipitation tank and the filter plate, rainwater is filtered for the second time through the step plate, finally, the rainwater is filtered for the last time through vegetation in the pressing plate, silt in the rainwater is retained after three times of filtering, and water and soil are kept stable; and the second-stage sand blocking structure comprises a plurality of first connecting plates and second connecting plates, a plurality of multi-stage sand blocking devices are spliced through the first connecting plates and the second connecting plates, meanwhile, disassembly is convenient, and maintenance is facilitated.

Description

Technical Field

[0001] This invention relates to the field of river regulation technology, and in particular to a multi-stage sand-trapping device for soil and water conservation. Background Technology

[0002] Rivers serve multiple functions, including flood control, drainage, water diversion, irrigation, navigation, landscaping, and tourism. The slopes on both sides of the river accumulate large amounts of silt. Due to the slope's inclination, over time, this silt may flow into the riverbed and accumulate at the bottom, causing soil erosion and reducing the river's cross-sectional area. Therefore, it is necessary to install silt-trapping barriers on both sides of the river. However, existing silt-trapping barriers often have the following problems: 1. Existing silt-trapping barriers are usually reinforced concrete walls. While these walls separate and intercept silt from the sides, over time, a large amount of silt accumulates at the edges of the walls, failing to effectively conserve water and soil. Furthermore, the silt accumulated at the corners has considerable weight, and prolonged accumulation can damage the wall structure. 2. Existing silt-trapping barriers are usually cast into the riverbank, making installation cumbersome and preventing disassembly.

[0003] To address the above problems, we propose a multi-stage sand-trapping device for soil and water conservation. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the background art by proposing a multi-stage sand-blocking device for soil and water conservation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-stage sand-trapping device for soil and water conservation, comprising a primary sand-trapping structure, a secondary sand-trapping structure, and a tertiary sand-trapping structure. The primary sand-trapping structure includes a sedimentation tank, a side platform fixedly connected to the rear end of the sedimentation tank, a filter plate fixedly connected to the front side wall of the sedimentation tank, the front side wall of the filter plate being inclined, an opening being provided on the front side wall of the filter plate, a sand-trapping net being fixedly installed on the opening, and symmetrically arranged positioning plates fixedly connected to the front end of the sedimentation tank.

[0006] In the above-mentioned multi-stage sand-blocking device for soil and water conservation, the secondary sand-blocking structure includes a stepped plate fixedly connected to the front end of the positioning plate, each section of the stepped plate has an opening 2 on its front side wall, and the rear side wall of the stepped plate is provided with a sliding mechanism.

[0007] In the aforementioned multi-stage sand-trapping device for soil and water conservation, the sliding mechanism includes a slot 1 and a slot 2 fixedly installed on the inner top wall of each section of the stepped slab. The slot 1 and slot 2 are symmetrically arranged at both ends of the inner top wall of the stepped slab. A first insert plate is slidably installed in the slot 1. A frame 1 that slides in contact with the rear side wall of the stepped slab is fixedly connected to the lower side wall of the insert plate 1. A connecting plate 1 located on the outer side of the stepped slab is fixedly connected to the front side wall of the frame 1. A second insert plate is slidably installed in the slot 2. A frame 2 that slides in contact with the rear side wall of the stepped slab is fixedly connected to the lower side wall of the insert plate 2. A connecting plate 2 located on the outer side of the stepped slab is fixedly connected to the front side wall of the frame 2.

[0008] In the above-mentioned multi-stage sand-blocking device for soil and water conservation, the three-stage sand-blocking structure includes a positioning plate two fixedly connected to the lower end of the stepped plate, a pressure plate rotatably connected to the front end of the positioning plate two, a plurality of through grooves being opened on the front side wall of the pressure plate, the through grooves being evenly distributed, and a plurality of positioning plates three fixedly connected to the lower end of the pressure plate.

[0009] In the above-mentioned multi-stage sand-blocking device for soil and water conservation, the upper side wall of the side platform is provided with multiple positioning holes one, the upper side wall of the positioning plate one is provided with multiple positioning holes two, the upper side wall of the positioning plate two is provided with positioning holes three, and the upper side wall of the positioning plate three is provided with positioning holes four.

[0010] In the above-mentioned multi-stage sand-blocking device for soil and water conservation, a second sand-blocking net is fixedly installed on the second opening, and a third sand-blocking net is fixedly installed on both the first frame and the second frame.

[0011] In the aforementioned multi-stage sand-trapping device for soil and water conservation, the height of the front end of the sedimentation tank is lower than the height of the rear end.

[0012] Compared with existing technologies, the advantages of this multi-stage sediment-trapping device for soil and water conservation are: 1. The primary sand-trapping structure includes a sedimentation tank and a filter plate. Surface rainwater flows into the sedimentation tank from the side platform. After overflowing the front end of the sedimentation tank, the rainwater flows between the filter plate and the stepped plate. Because the sedimentation tank has a certain depth and a long length, the speed at which the rainwater flows to the outside of the sedimentation tank slows down after it falls into the sedimentation tank. The silt carried by the rainwater will gradually settle in the sedimentation tank. The silt in the sedimentation tank is recycled in time. The groundwater seepage is filtered through the sand-trapping net on the filter plate to the back of the stepped plate. The sand-trapping net has a certain blocking effect on the soil below, which reduces the loss of sand and soil to a certain extent. 2. The secondary sand-blocking structure is equipped with sand-blocking net two and sand-blocking net three. The main purpose of sand-blocking net two and sand-blocking net three is to filter the rainwater that has flowed through the primary sand-blocking structure. A sliding mechanism is set on the step plate. Insert plate one and insert plate two on the sliding mechanism are respectively fixedly connected to connecting plate one and connecting plate two. Connecting plate one and connecting plate two are used to connect adjacent multi-stage sand-blocking devices together and are easy to disassemble. 3. Rainwater passing through the second and third sand-blocking nets finally flows through the three-stage sand-blocking structure. The three-stage sand-blocking structure mainly includes a pressure plate. The front side wall of the pressure plate is provided with multiple channels. Vegetation is planted in the channels. The vegetation performs the final filtration of rainwater. After filtration, the rainwater flows into the river. The pressure plate and the second positioning plate are rotatably connected to adapt to river channels with different slopes, and at the same time play a role in beautifying the environment. In summary, this invention performs primary filtration of rainwater through sedimentation tanks and filter plates, secondary filtration through stepped plates, and final filtration by vegetation within the pressure plate. After three filtrations, the sediment in the rainwater is retained, which helps maintain soil and water stability. Furthermore, the two-stage sediment-trapping structure includes multiple connecting plates 1 and 2, which connect multiple multi-stage sediment-trapping devices together, making it easy to disassemble and maintain. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a multi-stage sand-trapping device for soil and water conservation proposed in this invention. Figure 2 This is a top view of a multi-stage sand-trapping device for soil and water conservation proposed in this invention; Figure 3 This is a partial structural breakdown diagram of a multi-stage sand-trapping device for soil and water conservation proposed in this invention. Figure 4 This is a rear view of the stepped plate of a multi-stage sand-trapping device for soil and water conservation proposed in this invention.

[0014] In the diagram: 1. Sedimentation tank; 2. Side platform; 3. Filter plate; 4. Through-hole one; 5. Sand-trapping net one; 6. Positioning plate one; 7. Stepped plate; 8. Through-hole two; 9. Slot one; 10. Insert plate one; 11. Frame one; 12. Connecting plate one; 13. Slot two; 14. Insert plate two; 15. Frame two; 16. Connecting plate two; 17. Positioning plate two; 18. Pressure plate; 19. Through-slot; 20. Positioning plate three; 21. Positioning hole one; 22. Positioning hole two; 23. Positioning hole three; 24. Positioning hole four; 25. Sand-trapping net two; 26. Sand-trapping net three. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0016] Reference Figures 1-4 A multi-stage sand-trapping device for soil and water conservation includes a primary sand-trapping structure, a secondary sand-trapping structure, and a tertiary sand-trapping structure. The primary sand-trapping structure includes a sedimentation tank 1, which is U-shaped. The bottom wall of the U-shape allows the sediment to automatically gather towards the center, facilitating the dredging of the deposited sediment by workers. A side platform 2 is fixedly connected to the rear end of the sedimentation tank 1, and the side platform 2 is flush with the bank of the river. Rainwater from the surface will flow directly into the sedimentation tank 1 through the side platform 2. A filter plate 3 is fixedly connected to the front side wall of the sedimentation tank 1. The front side wall of the filter plate 3 is inclined and has an opening 4. A sand-trapping net 5 is fixedly installed on the opening 4. The sand-trapping net 5 is elastic and can conform to uneven soil, providing a barrier function for the soil. At the same time, it filters the sediment from groundwater seepage, which helps to maintain the stability of the soil under the sand-trapping net 5. A symmetrically arranged positioning plate 6 is fixedly connected to the front end of the sedimentation tank 1, and the height of the front end of the sedimentation tank 1 is lower than the height of the rear end.

[0017] The working principle of the primary sand-trapping structure is as follows: the ground surface is washed by rainwater, which carries sediment and flows. The flowing rainwater flows from the side platform 2 into the sedimentation tank 1. The sedimentation tank 1 has a certain depth and length. After the rainwater flows into the sedimentation tank 1, it will undergo a slow rising process. During this process, the sediment is settled and accumulates at the bottom of the sedimentation tank 1. When the rainwater in the sedimentation tank 1 overflows the front end of the sedimentation tank 1, the rainwater will flow outward and into the secondary sand-trapping structure. The rainwater will also seep into the ground and loosen the soil below the surface. The loosened soil is easily carried by the flowing water, causing soil erosion. Because there is a filter plate 3 in the primary sand-trapping structure, the sand-trapping net 5 on the filter plate 3 blocks the soil and filters the flowing water, so that some of the sediment in the flowing water is retained in the soil. The filtered water also flows into the secondary sand-trapping structure from the filter plate 3.

[0018] The secondary sand-trapping structure includes a stepped plate 7 fixedly connected to the front end of the positioning plate 6. The stepped plate 7 includes multiple steps, each step comprising front and rear side walls and an inner top wall. Each section of the front side wall of the stepped plate 7 has an opening 8. The rear side wall of the stepped plate 7 is provided with a sliding mechanism. The sliding mechanism includes a slot 9 and a slot 13 fixedly disposed on the inner top wall of each section of the stepped plate 7. The slots 9 and 13 are symmetrically disposed at both ends of the inner top wall of the stepped plate 7. An insert plate 10 is slidably disposed in the slot 9. The lower side wall of the insert plate 10... A frame 11 is fixedly connected to slide in contact with the rear side wall of the step plate 7. A connecting plate 12 located on the outside of the step plate 7 is fixedly connected to the front side wall of the frame 11. An insert plate 14 is slidably disposed in the slot 13. A frame 15 that slides in contact with the rear side wall of the step plate 7 is fixedly connected to the lower side wall of the insert plate 14. A connecting plate 16 located on the outside of the step plate 7 is fixedly connected to the front side wall of the frame 15. A sand-blocking net 25 is fixedly disposed on the opening 8. A sand-blocking net 26 is fixedly disposed on both the frame 11 and the frame 15.

[0019] The working principle of the two-stage sand-trapping structure is as follows: surface rainwater and groundwater infiltration water gather between the stepped plate 7 and the filter plate 3, and pass forward through the sand-trapping net 25 and the sand-trapping net 3 26. The sand-trapping net 25 and the sand-trapping net 3 26 perform secondary filtration on the water flow, further reducing the amount of sediment carried in the water flow. The filtered water flow will flow downward into the three-stage filtration structure.

[0020] Filter plates 3 and stepped plates 7 are prone to clogging and require periodic maintenance. The sliding mechanism facilitates the connection of multiple multi-stage sand-blocking devices and also makes it easy to disassemble a single multi-stage sand-blocking device, making filter plates 3 and stepped plates 7 easy to clean.

[0021] To facilitate installation and disassembly, spacing needs to be set when splicing multi-stage sand-trapping devices. The process of splicing and disassembling multi-stage sand-trapping devices is as follows: After fixing the sedimentation tank 1, filter plate 3, and stepped plate 7, move the insert plate one 10 and insert plate two 14 so that connecting plate one 12 fits with the adjacent connecting plate two 16, and connecting plate two 16 fits with the adjacent connecting plate one 12. Then, fasten connecting plate one 12 and connecting plate two 16 with bolts. The frame one 11 and the fixed connection with insert plate one 10 are then... Each of the frames 15, which is fixedly connected to the insert plate 2 14, is equipped with a sand-blocking net 3 26. The sand-blocking net 26 tightly connects the gaps between the multi-stage sand-blocking devices, so that the rainwater flowing through this area is also filtered. When the sand-blocking net 1 5, sand-blocking net 2 25, and sand-blocking net 3 26 are blocked, the bolts are unscrewed, and the insert plate 1 10 and insert plate 2 14 are pushed into the slot 1 9 and slot 2 13 respectively, so that gaps are left between the multi-stage sand-blocking devices, which facilitates the disassembly and maintenance of individual multi-stage sand-blocking devices.

[0022] The three-stage sand-trapping structure includes a positioning plate 2 17 fixedly connected to the lower end of the stepped plate 7. A pressure plate 18 is rotatably connected to the front end of the positioning plate 2 17. The rotatably set pressure plate 18 can flexibly adjust its angle to adapt to river channels with different slopes. The pressure plate 18 will also be directly pressed and fixed onto the slope soil of the river channel. Multiple through grooves 19 are opened on the front side wall of the pressure plate 18. The through grooves 19 are evenly distributed. Vegetation is planted in the soil in the through grooves 19. The roots of the vegetation grow and extend in the soil, which strengthens the slope soil. Multiple positioning plates 3 20 are fixedly connected to the lower end of the pressure plate 18.

[0023] The working principle of the three-stage sand-trapping structure is as follows: First, the vegetation in the channel 19 has a soil-stabilizing effect. Second, the rainwater flowing out from the secondary sand-trapping structure flows directly through the vegetation on the pressure plate 18. The dense vegetation performs a third filtration of the rainwater, further reducing the sediment content in the rainwater, and finally the clearer rainwater flows into the river channel.

[0024] The upper side wall of the side platform 2 is provided with multiple positioning holes 1 21, the upper side wall of the positioning plate 1 6 is provided with multiple positioning holes 22, and the edge of the upper side wall of the filter plate 3 is located inside the positioning holes 22. The upper side wall of the positioning plate 2 17 is provided with positioning holes 3 23, and the upper side wall of the positioning plate 3 20 is provided with positioning holes 4 24.

[0025] The method for fixing the multi-stage sand-trapping device is as follows: Prepare the riverbank slope according to the shape and size of the multi-stage sand-trapping device, then place the device on the prepared slope, ensuring the platform 2 is flush with the bank. Vertically insert positioning rods into positioning holes 1 (21), 22 (22), and 3 (23) to fix the sedimentation tank 1, stepped plate 7, and filter plate 3 to the soil. Then, insert the positioning rods vertically into positioning hole 4 (24) to press the pressure plate 18 against the slope. Finally, perform the above-mentioned multi-stage sand-trapping device splicing operation to complete the fixing of the multi-stage sand-trapping device.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-stage sand-trapping device for soil and water conservation, comprising a primary sand-trapping structure, a secondary sand-trapping structure, and a tertiary sand-trapping structure, characterized in that, The primary sand-blocking structure includes a sedimentation tank (1), a side platform (2) is fixedly connected to the rear end of the sedimentation tank (1), a filter plate (3) is fixedly connected to the front side wall of the sedimentation tank (1), the front side wall of the filter plate (3) is inclined, an opening (4) is opened on the front side wall of the filter plate (3), a sand-blocking net (5) is fixedly installed on the opening (4), and a symmetrically arranged positioning plate (6) is fixedly connected to the front end of the sedimentation tank (1).

2. A multi-stage sand-trapping device for soil and water conservation according to claim 1, characterized in that, The secondary sand-blocking structure includes a stepped plate (7) fixedly connected to the front end of the positioning plate (6). Each section of the front sidewall of the stepped plate (7) is provided with an opening (8), and the rear sidewall of the stepped plate (7) is provided with a sliding mechanism.

3. A multi-stage sand-trapping device for soil and water conservation according to claim 2, characterized in that, The sliding mechanism includes a slot 1 (9) and a slot 2 (13) fixedly installed on the inner top wall of each section of the step plate (7). The slot 1 (9) and the slot 2 (13) are symmetrically arranged at both ends of the inner top wall of the step plate (7). A plate 1 (10) is slidably installed in the slot 1 (9). A frame 1 (11) is fixedly connected to the lower side wall of the plate 1 (10) and slides in contact with the rear side wall of the step plate (7). A connecting plate 1 (12) located on the outside of the step plate (7) is fixedly connected to the front side wall of the frame 1 (11). A plate 2 (14) is slidably installed in the slot 2 (13). A frame 2 (15) is fixedly connected to the lower side wall of the plate 2 (14) and slides in contact with the rear side wall of the step plate (7). A connecting plate 2 (16) located on the outside of the step plate (7) is fixedly connected to the front side wall of the frame 2 (15).

4. A multi-stage sand-trapping device for soil and water conservation according to claim 2, characterized in that, The three-stage sand-blocking structure includes a positioning plate two (17) fixedly connected to the lower end of the step plate (7). The front end of the positioning plate two (17) is rotatably connected to a pressure plate (18). The front side wall of the pressure plate (18) is provided with multiple through grooves (19). The through grooves (19) are evenly distributed. The lower end of the pressure plate (18) is fixedly connected to multiple positioning plates three (20).

5. A multi-stage sand-trapping device for soil and water conservation according to claim 4, characterized in that, The upper side wall of the side platform (2) is provided with multiple positioning holes 1 (21), the upper side wall of the positioning plate 1 (6) is provided with multiple positioning holes 2 (22), the upper side wall of the positioning plate 2 (17) is provided with positioning holes 3 (23), and the upper side wall of the positioning plate 3 (20) is provided with positioning holes 4 (24).

6. A multi-stage sand-trapping device for soil and water conservation according to claim 3, characterized in that, A second sand-blocking net (25) is fixedly installed on the second opening (8), and a third sand-blocking net (26) is fixedly installed on both the first frame (11) and the second frame (15).

7. A multi-stage sand-trapping device for soil and water conservation according to claim 1, characterized in that, The front end of the sedimentation tank (1) is lower than the rear end.

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