Anti-blocking farmland drainage port filtering device
By installing a transmission pipe and scraper structure in the farmland drainage outlet, the problem of filter hole clogging is solved, enabling automatic cleaning and convenient replacement of filter plates, thus ensuring the stability of farmland drainage and soil aeration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AGRI & RURAL AFFAIRS BUREAU OF WEICHANG MANCHU & MONGOLIAN AUTONOMOUS COUNTY
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-15
AI Technical Summary
When using existing farmland drainage outlet filtration devices, impurities easily clog the filter holes, affecting drainage efficiency, and it is inconvenient to disassemble, replace the filter screen, and clean the impurities.
A filter structure including a drain outlet body, a transmission pipe, a pressurizing chamber, a rotating shaft, and a scraper is designed. The rotating shaft is driven by water flow to rotate the scraper to clean the filter holes, and the filter plate can be easily disassembled and cleaned through the cooperation of a positioning ring and a clamping ring.
It enables automatic cleaning of filter holes during drainage to prevent clogging, and facilitates filter plate replacement and cleaning, ensuring smooth drainage and aeration of farmland soil.
Smart Images

Figure CN224236179U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage outlet filtration technology, specifically to a clogging-proof agricultural drainage outlet filtration device. Background Technology
[0002] Farmland drainage is an indispensable part of agricultural irrigation systems, primarily used to remove excess water, prevent waterlogging, ensure soil aeration, and promote crop growth. Drainage outlets are a crucial component of the drainage system; if they become clogged, it directly impacts drainage efficiency and crop growth. Therefore, anti-clogging filtration devices are essential to improve the stability and efficiency of farmland drainage systems.
[0003] Patent specification CN 218264254U discloses an anti-clogging agricultural drainage outlet filter device. The device includes a main body with a drainage outlet connected to it. A drainage outlet cover is movably installed on the top of the main body. A filter is located in the middle of the inner cavity of the main body, and a lifting rod mechanism is located on the right side of the inner cavity. This anti-clogging filter device for road and municipal drainage outlets achieves good filtration through the coordinated use of a filter screen, a fixing plate, a first hinge rod, a second hinge rod, and a return spring. It solves the problem of poor filtration effect in general road and municipal drainage outlet anti-clogging filter devices. The linkage of the rack and pinion rod and the wedge-shaped guide rail prevents excessive debris from going unnoticed by the user, avoiding odors caused by prolonged neglect.
[0004] However, in implementing the relevant technology, the above-mentioned anti-clogging farmland drainage outlet filter device has the following problems: when using the device, the filter screen holes cannot be cleaned at the same time as drainage, and impurities easily clog the filter holes, affecting drainage efficiency. At the same time, it is inconvenient to disassemble and replace the filter screen to clean impurities. Therefore, we propose an anti-clogging farmland drainage outlet filter device. Utility Model Content
[0005] This utility model proposes an anti-clogging filter device for farmland drainage outlets, which solves the problems in related technologies where impurities easily clog the filter screen, affecting drainage efficiency and making it inconvenient to disassemble, replace, and clean the filter screen.
[0006] The technical solution of this utility model is as follows:
[0007] A clogging-resistant filter device for farmland drainage outlets includes a drainage outlet body, a positioning ring, and a mounting block. The inner wall of the drainage outlet body is fitted with a mounting sleeve, and the inner wall of the mounting sleeve is fitted with a transmission pipe. One end of the transmission pipe has a pressurization chamber, and the end of the transmission pipe away from the pressurization chamber is fitted with a mounting block. A fixing post is mounted on the inner wall of the transmission pipe, and a rotating shaft is movably mounted at the center of the fixing post. A scraper is mounted on the end of the rotating shaft away from the fixing post, and transmission blades are evenly spaced on the outer wall of the rotating shaft. The inner wall of the mounting block has a mounting groove, and a filter plate is movably mounted on the mounting block through the mounting groove. A positioning ring is movably mounted on the outer wall of the filter plate away from the mounting block, and a clamping ring is located on the side of the positioning ring closest to the filter plate. The filter plate is clamped and fixed by the mounting block and the clamping ring.
[0008] Preferably, a rotating rod is provided at the center of the positioning ring, and the rotating rod has a cross structure.
[0009] Preferably, the outer wall of the positioning ring is provided with an external thread, and the inner wall of the mounting sleeve is provided with an internal thread that matches the external thread.
[0010] Preferably, a wire mesh is installed on the outer wall of one side of the main body of the drain outlet, and the wire mesh has a crisscross structure.
[0011] Preferably, a wire mesh is installed on the outer wall of one side of the main body of the drain outlet, and the wire mesh has a crisscross structure.
[0012] Preferably, the mounting groove has an annular groove structure, and the clamping ring and filter plate respectively fit into the mounting groove.
[0013] Preferably, the outer wall of the filter plate is uniformly provided with filter holes, and the scraper is located on the side of the filter plate and contacts its filter holes.
[0014] Preferably, the bottom end of the mounting block is provided with a movable groove, and the scraper rod fits into the movable groove.
[0015] The working principle and beneficial effects of this utility model are as follows:
[0016] In this invention, the drain outlet body, transmission pipe, and pressurizing chamber are designed. The drain outlet body is installed at the outlet of the drainage ditch. When there is too much water in the farmland ditch, the water flow will pass through the wire mesh on one side of the drain outlet body to block larger floating objects. After passing through the wire mesh, the water flows through the pressurizing chamber. Since the pressurizing chamber is conical, the water pressure increases when the water flows out of the port of the pressurizing chamber and enters the transmission pipe. A rotating shaft is movably installed at the center of the transmission pipe through a fixed pile. Since transmission blades are installed at equal intervals on the outer wall of the rotating shaft, and since the transmission blades are located at the center of the water flow impact, the water flow will drive the transmission blades to stir, thereby driving the rotating shaft to rotate. The rotating shaft drives the scraper to rotate and continuously scrape the outer wall of one side of the filter plate. When the water flows through the filter plate, it will be filtered. The continuous scraping of the filter plate's filter holes prevents the filter holes from being blocked. This structure can drain excess water from the farmland to prevent waterlogging and ensure the aeration of the farmland soil.
[0017] In this invention, by using a positioning ring, a rotating rod, and a mounting groove, when the filter plate has been used for a long time and there are too many impurities in the transmission tube, manually rotating the rotating rod counterclockwise will cause the positioning ring to rotate counterclockwise. Since the inner wall of one side of the mounting sleeve is provided with an internal thread, and the outer wall of the positioning ring is provided with an external thread that matches the internal thread, the clamping ring will leave the inner wall of the mounting groove during the counterclockwise rotation, stopping the clamping and fixing of the filter plate. The positioning ring can be removed from the inner wall of the mounting sleeve, and the filter plate can be removed from the inner wall of the mounting groove for cleaning and replacement. At the same time, the impurities in the transmission tube will be discharged from the port of the drain body. When using it again, the clamping ring is installed into the mounting groove, and the positioning ring is rotated clockwise so that the clamping ring at its bottom end rotates into the mounting groove. It works with the inner wall of the mounting block to clamp and fix the outer wall around the filter plate. During use, the drain can continuously scrape the filter holes of the filter plate to ensure smooth drainage, and at the same time, it is convenient to disassemble and install the filter plate for cleaning and replacement to remove excess impurities in the transmission tube. Attached Figure Description
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0019] Figure 1 This is a schematic diagram of the main structure of the drainage outlet proposed in this utility model;
[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the main body of the drainage outlet proposed in this utility model;
[0021] Figure 3 This is a schematic diagram of the mounting groove structure proposed in this utility model;
[0022] Figure 4 This is a schematic diagram of the clamping ring structure proposed in this utility model;
[0023] Figure 5 This is a schematic diagram of the pressurization chamber structure proposed in this utility model.
[0024] In the diagram: 1. Drainage outlet body; 2. Mounting sleeve; 3. Positioning ring; 4. Rotating rod; 5. Mounting block; 6. Clamping ring; 7. Mounting groove; 8. Scraper; 9. Movable groove; 10. Fixed pile; 11. Rotating shaft; 12. Transmission pipe; 13. Transmission blade; 14. Pressurization chamber; 15. Filter plate; 16. Wire mesh. Detailed Implementation
[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0026] Example 1: As Figures 1-5 As shown, this embodiment proposes an anti-clogging farmland drainage outlet filtration device, including a drainage outlet body 1, a positioning ring 3, and an installation block 5. The inner wall of the drainage outlet body 1 is provided with an installation sleeve 2, and the inner wall of the installation sleeve 2 is provided with a transmission pipe 12. One end of the transmission pipe 12 is provided with a pressurizing chamber 14, and the end of the transmission pipe 12 away from the pressurizing chamber 14 is provided with an installation block 5. The inner wall of the transmission pipe 12 is provided with a fixing pile 10, and a rotating shaft 11 is movably installed at the center of the fixing pile 10. A scraper 8 is installed at the end of the rotating shaft 11 away from the fixing pile 10. Transmission blades 13 are installed at equal intervals on the outer wall of the rotating shaft 11. The inner wall of the installation block 5 is provided with an installation groove 7, and a filter plate 15 is movably installed on the installation block 5 through the installation groove 7. The outer wall of the filter plate 15 away from the installation block 5 is movably installed with a positioning ring 3, and the side of the positioning ring 3 close to the filter plate 15 is provided with a clamping ring 6. The filter plate 15 is clamped and fixed by the installation block 5 and the clamping ring 6.
[0027] In this embodiment, a wire mesh 16 is installed on the outer wall of one side of the drain outlet body 1. The wire mesh 16 has a crisscross structure.
[0028] In this embodiment, a wire mesh 16 is installed on the outer wall of one side of the drain outlet body 1. The wire mesh 16 has a crisscross structure.
[0029] In this embodiment, filter holes are uniformly arranged on the outer wall of filter plate 15, and scraper 8 is located on the side of filter plate 15 and contacts its filter holes.
[0030] In this embodiment, the bottom end of the mounting block 5 is provided with a movable groove 9, and the scraper 8 fits into the movable groove 9.
[0031] Specific examples Figures 1-3As shown, when using this structure, the main body of the drain outlet 1 is installed at the outlet of the drainage ditch. When there is too much water in the farmland ditch, the water flow will pass through the wire mesh 16 set on one side of the main body of the drain outlet 1 to block larger floating objects. After passing through the wire mesh 16, the water flow passes through the pressurization chamber 14. Since the pressurization chamber 14 is conical, when the water flows out from the port of the pressurization chamber 14, the water pressure will increase and enter the transmission pipe 12. A rotating shaft 11 is movably installed at the center of the transmission pipe 12 through the fixed pile 10. Since the rotating shaft 11 The outer wall of the filter plate 15 is equipped with drive blades 13 at equal intervals. Since the drive blades 13 are located at the center of the water flow impact, the water flow will drive the drive blades 13 to stir when it passes through, thereby driving the rotating shaft 11 to rotate. The rotating shaft 11 drives the scraper 8 to rotate and continuously scrape the outer wall of one side of the filter plate 15. When the water flows through the filter plate 15, it will be filtered. The continuous scraping of the filter plate 15 prevents the filter holes from being blocked. This structure can drain excess water from the farmland to prevent waterlogging and ensure the aeration of the farmland soil.
[0032] Example 2: A rotating rod 4 is provided at the center of the positioning ring 3. The rotating rod 4 has a cross structure.
[0033] In this embodiment, the outer wall of the positioning ring 3 is provided with an external thread, and the inner wall of the mounting sleeve 2 is provided with an internal thread that matches the external thread.
[0034] In this embodiment, the mounting groove 7 has an annular groove structure, and the clamping ring 6 and the filter plate 15 respectively fit into the mounting groove 7.
[0035] Specific examples Figure 1 , Figure 4 and Figure 5 As shown, when using this structure, if the filter plate 15 has been used for a long time and there are too many impurities in the transmission tube 12, manually rotate the rotating rod 4 counterclockwise to drive the positioning ring 3 to rotate counterclockwise. Since the inner wall of one side of the mounting sleeve 2 is provided with an internal thread, and the outer wall of the positioning ring 3 is provided with an external thread that matches the internal thread, the clamping ring 6 will leave the inner wall of the mounting groove 7 during the counterclockwise rotation, stopping the clamping and fixing of the filter plate 15. The positioning ring 3 can then be removed from the inner wall of the mounting sleeve 2, and the filter plate 15 can be removed from the inner wall of the mounting groove 7 for further processing. The filter plate 15 is cleaned and replaced, and impurities in the transmission pipe 12 are discharged from the port of the drain body 1. When it is used again, the clamping ring 6 is installed into the mounting groove 7, and the positioning ring 3 is rotated clockwise so that the clamping ring 6 at its bottom end rotates into the mounting groove 7. The inner wall of the mounting block 5 clamps and fixes the outer wall around the filter plate 15. When this drain is used, it can continuously scrape the filter holes of the filter plate 15 to ensure smooth discharge. At the same time, it is convenient to disassemble and install the filter plate 15 for cleaning and replacement to discharge excess impurities in the transmission pipe 12.
[0036] Working principle: The main body of the drain outlet 1 is installed at the outlet of the drainage ditch. When there is too much water in the farmland ditch, the water flow will pass through the wire mesh 16 set on one side of the main body of the drain outlet 1 to block larger floating objects. After passing through the wire mesh 16, the water flows through the pressurization chamber 14. Since the pressurization chamber 14 is conical, when the water flows out of the port of the pressurization chamber 14, the water pressure will increase and enter the transmission pipe 12. The center of the transmission pipe 12 is movably installed with a rotating shaft 11 through the fixed pile 10. Due to the outer wall of the rotating shaft 11 Equally spaced drive blades 13 are installed. Since the drive blades 13 are located at the center of the water flow impact, the water flow causes the drive blades 13 to stir, thereby rotating the shaft 11. The shaft 11 then drives the scraper 8 to rotate, continuously scraping the outer wall of one side of the filter plate 15. When water flows through the filter plate 15, it is filtered. The continuous scraping of the filter plate 15 prevents the filter holes from becoming clogged, draining excess water from the farmland to prevent waterlogging and ensuring soil aeration. When the filter plate 15 is in use... When there are too many impurities in the transmission pipe 12 after a long time, manually rotate the rotating rod 4 counterclockwise to drive the positioning ring 3 to rotate counterclockwise. Since the inner wall of the mounting sleeve 2 is provided with internal threads and the outer wall of the positioning ring 3 is provided with external threads that match the internal threads, the clamping ring 6 will leave the inner wall of the mounting groove 7 during the counterclockwise rotation, stopping the clamping and fixing of the filter plate 15. The positioning ring 3 can be removed from the inner wall of the mounting sleeve 2, and the filter plate 15 can be removed from the inner wall of the mounting groove 7 for cleaning and replacement. At the same time, the impurities in the transmission pipe 12 will be discharged from the port of the drain body 1. When using it again, the clamping ring 6 is installed into the mounting groove 7, and the positioning ring 3 is rotated clockwise so that the clamping ring 6 at its bottom end rotates into the mounting groove 7. It works with the inner wall of the mounting block 5 to clamp and fix the outer wall around the filter plate 15. When using this drain, it can continuously scrape the filter holes of the filter plate 15 to ensure smooth discharge. At the same time, it is convenient to disassemble and install the filter plate 15 for cleaning and replacement to discharge excess impurities in the transmission pipe 12.
[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A clogging-resistant agricultural drainage outlet filtration device, comprising a drainage outlet body (1), a positioning ring (3), and a mounting block (5), characterized in that: The inner wall of the drain outlet body (1) is provided with an installation sleeve (2), and a transmission pipe (12) is installed on the inner wall of the installation sleeve (2). One end of the transmission pipe (12) is provided with a pressurization chamber (14), and the end of the transmission pipe (12) away from the pressurization chamber (14) is provided with an installation block (5). A fixing pile (10) is installed on the inner wall of the transmission pipe (12), and a rotating shaft (11) is movably installed at the center of the fixing pile (10). The end of the rotating shaft (11) away from the fixing pile (10) is provided with a mounting block (5). The scraper (8) has drive blades (13) installed at equal intervals on the outer wall of the rotating shaft (11). The inner wall of the mounting block (5) is provided with a mounting groove (7). The mounting block (5) is movably mounted with a filter plate (15) through the mounting groove (7). A positioning ring (3) is movably mounted on the outer wall of the filter plate (15) away from the mounting block (5). A clamping ring (6) is provided on the side of the positioning ring (3) close to the filter plate (15). The filter plate (15) is clamped and fixed by the mounting block (5) and the clamping ring (6).
2. The anti-clogging farmland drainage outlet filter device according to claim 1, characterized in that, A rotating rod (4) is provided at the center of the positioning ring (3), and the rotating rod (4) has a cross structure.
3. The anti-clogging farmland drainage outlet filter device according to claim 2, characterized in that, The outer wall of the positioning ring (3) is provided with an external thread, and the inner wall of the mounting sleeve (2) is provided with an internal thread that matches the external thread.
4. The anti-clogging farmland drainage outlet filter device according to claim 2, characterized in that, The outer wall of one side of the main body (1) of the drain outlet is fitted with a wire mesh (16), which has a cross structure.
5. The anti-clogging farmland drainage outlet filter device according to claim 3, characterized in that, The pressurizing chamber (14) has a conical structure and is located on the side of the transmission blade (13).
6. The anti-clogging farmland drainage outlet filter device according to claim 5, characterized in that, The mounting groove (7) has an annular groove structure, and the clamping ring (6) and the filter plate (15) respectively fit into the mounting groove (7).
7. The anti-clogging farmland drainage outlet filter device according to claim 6, characterized in that, The filter plate (15) has filter holes evenly arranged on its outer wall, and the scraper (8) is located on the side of the filter plate (15) and contacts its filter holes.
8. A clogging-resistant farmland drainage outlet filter device according to claim 5, characterized in that, The bottom end of the mounting block (5) is provided with a movable groove (9), and the scraper (8) fits into the movable groove (9).