A device for collecting leaching solution of slope farmland hidden pipe by multiple points simultaneously

Abstract

The present application relates to a kind of slope farmland hidden pipe leaching solution multi-point synchronous collection device, comprising: with multiple liquid collecting tubes collection box, the filter box is equipped between the liquid collecting tube and collection box, the filter box bottom is equipped with the communication pipe of top wide bottom narrow, cap-shaped filter piece is movably pressed on the communication pipe, multiple rows of filter holes are opened in cap-shaped filter piece, one sliding groove that is communicated is opened in each row of filter holes, and cleaning plate is equipped in sliding groove;Filter box outside is equipped with the control member that is penetrated into communication pipe, and control member is connected with cleaning plate by drive rod;Communication pipe middle part is hung with traction rope, and movable disc is fixed on traction rope, and cap-shaped filter piece and movable disc are equipped with telescopic member between them.The present application device can realize the simultaneous collection of slope farmland different positions leaching solution, avoid large particle impurities into collection box to influence detection result, reduce the static accumulation of impurities on the surface of filter hole, actively clean convenient, reduce the frequency and cost of manual cleaning maintenance.

Description

Technical Field

[0001] This invention relates to the field of agricultural leachate detection technology, specifically to a multi-point synchronous collection device for leachate from underground pipes on sloping farmland. Background Technology

[0002] The collection and analysis of leachate from underground pipes in sloping farmland is an important method for studying soil nutrient leaching, salt transport, and agricultural non-point source pollution. By collecting the leachate discharged from underground pipes and analyzing its components, we can understand the soil nutrient status, heavy metal pollution, and organic matter content, thereby guiding agricultural production activities such as rational fertilization and adjustment of soil pH. It also provides important data for soil environmental monitoring and environmental protection.

[0003] Currently, there are various types of existing leachate collection devices for sloping farmland. For example, there are in-situ soil leachate collectors for sloping farmland that utilize the principle of gravity flow. The leachate is collected by a filter disc and then flows into a collection bottle through a guide pipe, completing the collection without the need for a suction device. In addition, there are gravity-flow farmland underground leachate collection devices that collect the leachate by a leachate disc, which automatically flows into a collection pipe through an outlet pipe, and then is extracted to a sampling bottle by a vacuum pump. However, these existing collection devices still have shortcomings in practical use. Most existing collectors use filter materials such as sand and gravel to block and filter suspended particles in the leachate. However, after prolonged use, the surface of the sand and gravel retains a large amount of suspended particles, and the weight of the soil itself causes the filter porosity of the sand and gravel to gradually decrease, affecting the filtration and collection efficiency of the leachate, and consequently affecting the accuracy of the leachate collection and testing results.

[0004] Therefore, a multi-point synchronous collection device for leachate from underground pipes on sloping farmland is proposed to address the above problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned defects of the prior art and provide a multi-point synchronous collection device for leachate from underground pipes on sloping farmland, which can simultaneously collect leachate from different locations on sloping farmland, avoid large particles of impurities from entering the collection box and affecting the test results, reduce the static accumulation of impurities on the surface of the filter holes, facilitate active cleaning, and reduce the frequency and cost of manual cleaning and maintenance.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: A multi-point synchronous collection device for leachate from underground pipes on sloping farmland, comprising: a collection box with multiple collection pipes; a filter box between the collection pipes and the collection box; a connecting pipe with a wider top and narrower bottom installed at the bottom of the filter box; a cap-shaped filter element that is movably pressed against the connecting pipe; multiple rows of filter holes on the cap-shaped filter element; a connecting sliding groove on each row of filter holes; a cleaning plate installed in the sliding groove; a control component that passes through the connecting pipe on the outside of the filter box; the control component being connected to the cleaning plate via a drive rod; a traction rope hanging in the middle of the connecting pipe; a movable disc fixed on the traction rope; and a telescopic component between the cap-shaped filter element and the movable disc. The leachate solution from different locations on sloping farmland can be collected simultaneously through multi-point collection pipe connection; the leachate solution is initially filtered through a filter box to prevent large particles of impurities from entering the collection box and affecting the test results; the cap-shaped filter element and the connecting pipe can move relative to each other, so that the filter element will move slightly during the filtration process, and the disturbance of liquid flow will reduce the static accumulation of impurities on the surface of the filter holes; the cooperation between the cleaning plate and the sliding groove provides convenient operation for active cleaning.

[0007] Preferably, the control component includes a connecting ring fixedly connected to the drive rod and a control ring sleeved on the outside of the connecting pipe. The control ring is fixedly connected to the drive rod, and a fixing ring, fixedly connected to multiple cleaning plates, is movably disposed inside the cap-shaped filter element. The connecting ring and the fixing ring are rotatably connected. The drive of multiple cleaning plates is concentrated on a single control ring, achieving simultaneous cleaning of all filter holes at once, making operation simple and efficient. The control ring is located on the outside of the connecting pipe, facilitating direct operation from outside the filter box without the need for disassembly. The rotatable connection design ensures that the drive of the cleaning plates and the free movement of the cap-shaped filter element do not interfere with each other.

[0008] Preferably, a sealing sleeve that movably engages with the drive rod is fixedly connected to the connecting pipe. The sealing sleeve ensures the airtightness of the drive rod's movement channel, preventing leakage of the leachate during operation. This guarantees the accuracy of the collected amount and prevents liquid contamination of operators and the external environment. Simultaneously, the sealing sleeve provides guidance for the drive rod, making its sliding smoother and more stable.

[0009] Preferably, a flexible lever is fixedly connected to the drive rod, and the flexible lever abuts against the edge of the movable disc. While cleaning the filter holes, the flexible lever drives the movable disc and the cap-shaped filter element to rotate at a small angle. This rotation, combined with the scraping action of the cleaning plate, helps to loosen and remove accumulated impurities from the filter holes from different angles, improving the cleaning effect. Simultaneously, the flexible lever also plays a certain corrective role in the position of the movable disc, ensuring that the movable disc can accurately return to its original position after long-term use.

[0010] Preferably, the telescopic component includes a fixed sleeve that is connected and fixed to the cap-shaped filter element. A sliding rod, connected and fixed to the movable disc, is movably sleeved inside the fixed sleeve. A tension spring rotatably connects the sliding rod and the cap-shaped filter element. The rotatable connection design of the tension spring allows the cap-shaped filter element a certain degree of rotational freedom during movement, enabling multi-dimensional micro-motion in conjunction with other structures.

[0011] Preferably, the bottom end of the fixed sleeve is fixedly connected to a limiting plate, the middle of the movable plate is provided with a through groove, and the middle of the top surface of the movable plate is engaged with the limiting plate.

[0012] Preferably, a crossbar is fixedly connected to the bottom of the connecting pipe, and the crossbar is connected to the traction rope. The tension and slack of the traction rope directly reflect the displacement of the movable disc.

[0013] Preferably, the filter box consists of an opening and closing top cover and a box body. The top cover is movably connected to the liquid collection pipe, and the liquid collection pipe is equipped with an anti-detachment disc that cooperates with the liquid collection pipe. The opening and closing design of the top cover and the box body allows the interior of the filter box to be easily opened, facilitating regular maintenance and cleaning of internal components such as the filter elements and connecting pipes.

[0014] Preferably, the contact surfaces of the limiting plate and the movable plate are made of magnetically compatible materials.

[0015] The beneficial effects of the multi-point synchronous collection device for leachate from underground pipes on sloping farmland of the present invention are as follows: After the liquid enters the filter box, it passes through the filter holes into the cap-shaped filter element. The liquid flow causes the movable disc to move, loosening the traction rope. This allows for slight relative movement between the cap-shaped filter element and the connecting pipe, effectively avoiding the impurity accumulation problem caused by traditional static filtration structures. When active cleaning is required, manually pressing the control ring drives the cleaning plate to move along the sliding groove, clearing blockages in the filter holes. Simultaneously, the elastic lever acts on the edge of the movable disc, causing it to rotate slightly. This, combined with the cleaning plate's action, helps to thoroughly remove accumulated impurities from the filter holes. This invention combines movable filtration with active cleaning, effectively solving the problem of easy clogging of filter holes, ensuring the continuity and stability of leachate collection, and reducing the frequency and cost of manual cleaning and maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the multi-point synchronous collection device for leachate from underground pipes on sloping farmland according to the present invention; Figure 2 This is a schematic diagram of the cooperative structure of the filter box, the connecting pipe, and the collection pipe in an embodiment of the multi-point synchronous collection device for leachate from underground pipes in sloping farmland of the present invention. Figure 3 This is a schematic diagram of the disassembled structure of the filter box and the collection pipe in an embodiment of the multi-point synchronous collection device for leachate from underground pipes on sloping farmland of the present invention; Figure 4 This is a schematic diagram showing the positional relationship between the connecting pipe and the filter box in an embodiment of the multi-point synchronous collection device for leachate from underground pipes on sloping farmland according to the present invention; Figure 5 This is a schematic cross-sectional view of the cap-shaped filter element in an embodiment of the multi-point synchronous collection device for leachate from underground pipes in sloping farmland according to the present invention. Figure 6 This is a schematic cross-sectional view of the cap-shaped filter and the connecting pipe in an embodiment of the multi-point synchronous collection device for leachate from underground pipes in sloping farmland according to the present invention. Figure 7 yes Figure 6 A structural breakdown diagram; Figure 8 This is a schematic diagram of the disassembled structure of the fixed sleeve and sliding rod in an embodiment of the multi-point synchronous collection device for leachate from underground pipes on sloping farmland according to the present invention; Figure 9 This is a schematic diagram of the disassembled structure of the limiting disc and the movable disc in an embodiment of the multi-point synchronous collection device for leachate from underground pipes in sloping farmland according to the present invention; Figure 10 This is a bottom view schematic diagram of the positional relationship between the movable disc and the elastic lever in an embodiment of the multi-point synchronous collection device for leachate from underground pipes in sloping farmland according to the present invention; Explanation of reference numerals in the attached figures: 1. Liquid collecting pipe; 2. Collection box; 3. Filter box; 4. Connecting pipe; 5. Cap-shaped filter element; 6. Filter hole; 7. Sliding groove; 8. Cleaning plate; 9. Drive rod; 10. Traction rope; 11. Movable disc; 12. Connecting ring; 13. Control ring; 14. Fixing ring; 15. Sealing sleeve; 16. Elastic lever; 17. Fixing sleeve; 18. Slide rod; 19. Tension spring; 20. Limiting disc; 21. Through groove; 22. Crossbar; 23. Anti-detachment disc. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figures 1-10 As shown, this embodiment of the invention provides a multi-point synchronous collection device for leachate from underground pipes on sloping farmland, comprising: a collection box 2 with multiple collection pipes 1, a filter box 3 between the collection pipes 1 and the collection box 2, a connecting pipe 4 with a wide top and narrow bottom installed at the bottom of the filter box 3, a cap-shaped filter element 5 movably pressing against the connecting pipe 4, multiple rows of filter holes 6 opened on the cap-shaped filter element 5, a connecting sliding groove 7 opened on each row of filter holes 6, and a cleaning plate 8 provided in the sliding groove 7; The filter box 3 is equipped with a control component that passes through the connecting pipe 4 on the outside. The control component is connected to the cleaning plate 8 via the drive rod 9. A traction rope 10 is attached to the middle of the connecting pipe 4, and a movable disc 11 is fixed on the traction rope 10. A telescopic component is provided between the cap-shaped filter element 5 and the movable disc 11. During filtration, the leachate enters the connecting pipe 4 through multiple rows of filter holes 6 on the cap-shaped filter element 5, and then flows into the collection box 2. Each row of filter holes 6 is connected to a sliding groove 7, and the cleaning plate 8 is embedded in the sliding groove 7. Under normal operation, the cleaning plate 8 is at the bottom of the sliding groove 7 and does not interfere with filtration; when cleaning is required, the drive rod 9 is driven by the control component on the outside of the filter box 3, which moves the cleaning plate 8 along the sliding groove 7 to scrape off the impurities accumulated in the filter holes 6.

[0018] The telescopic component connects the cap-shaped filter element 5 to the movable disc 11, and the traction rope 10 is hooked to the middle of the connecting pipe 4 and connected to the movable disc 11. When the solution flows, it pushes the movable disc 11 to move, and the telescopic component extends and retracts accordingly, causing slight relative movement between the cap-shaped filter element 5 and the connecting pipe 4.

[0019] The control components include a connecting ring 12 fixedly connected to the drive rod 9 and a control ring 13 sleeved on the outside of the connecting pipe 4. The control ring 13 is fixedly connected to the drive rod 9. A fixing ring 14, which is fixedly connected to multiple cleaning plates 8, is movable inside the cap-shaped filter element 5. The connecting ring 12 and the fixing ring 14 are rotatably connected. When the operator presses or pulls the control ring 13 from outside the filter box 3, the control ring 13 drives the drive rod 9 and the connecting ring 12 to move together. The connecting ring 12 drives the fixing ring 14 to move through the rotatable connection, thereby driving all the cleaning plates 8 to move synchronously along the sliding groove 7. Because the connecting ring 12 and the fixing ring 14 are rotatably connected, the cap-shaped filter element 5 can rotate freely relative to the control components during the operation, and the micro-movement of the filter element is not restricted by the rigid connection of the cleaning plates 8.

[0020] A sealing sleeve 15 is fixedly connected to the connecting pipe 4 and is movably engaged with the drive rod 9; the drive rod 9 extends through the sealing sleeve 15 into the interior of the connecting pipe 4. The drive rod 9 can slide freely axially within the sealing sleeve 15, thereby driving the internal cleaning plate 8 from the outside, while the sealing sleeve 15 effectively prevents the leachate in the connecting pipe 4 from leaking outward along the drive rod 9.

[0021] A flexible lever 16 is fixedly connected to the drive rod 9, and the flexible lever 16 abuts against the edge of the movable disk 11. When the drive rod 9 moves up and down, the flexible lever 16 moves accordingly, and its end acts on the edge of the movable disk 11, applying a tangential force to the movable disk 11. Since the movable disk 11 is connected to the cap-shaped filter element 5 through the traction rope 10 and the telescopic component, this tangential force causes the movable disk 11 to rotate slightly, which in turn drives the cap-shaped filter element 5 to rotate at a small angle through the telescopic component. The elasticity of the flexible lever 16 allows it to adaptively adjust the pressure during the pressing process, avoiding rigid impact on the movable disk 11.

[0022] The telescopic component includes a fixed sleeve 17 connected and fixed to the cap-shaped filter element 5. A sliding rod 18, connected and fixed to the movable disc 11, is movably sleeved within the fixed sleeve 17. A tension spring 19 is rotatably connected between the sliding rod 18 and the cap-shaped filter element 5. Under normal conditions, the tension spring 19 is in a natural or slightly stretched state, pulling the movable disc 11 towards the cap-shaped filter element 5. When the liquid flows, the liquid pushes the movable disc 11 downwards, the sliding rod 18 slides downwards along the fixed sleeve 17, and the tension spring 19 is stretched. When the liquid stops flowing, the restoring force of the tension spring 19 pulls the movable disc 11 upwards, and the sliding rod 18 retracts back into the fixed sleeve 17.

[0023] The fixed sleeve 17 is fixedly connected to the bottom end of the limiting plate 20, and the movable plate 11 has a through groove 21 in the middle. The middle of the top surface of the movable plate 11 is engaged with the limiting plate 20. When the movable plate 11 is pulled upward by the tension spring 19 to reset, the middle of the top surface of the movable plate 11 contacts and engages with the lower surface of the limiting plate 20, restricting the movable plate 11 from continuing to move upward, thereby determining the initial position of the movable plate 11.

[0024] A crossbar 22 is fixedly connected to the bottom of the connecting pipe 4, and the crossbar 22 is connected to the traction rope 10. The traction rope 10 extends upward from the crossbar 22 to the movable disc 11, and is taut when the movable disc 11 is not pushed, thus fixing the relative position of the movable disc 11 and the connecting pipe 4. When the movable disc 11 is pushed downward by the liquid, the traction rope 10 changes from taut to slack.

[0025] The filter box 3 consists of a top cover and a box body that can be opened and closed. The top cover is movably connected to the liquid collection pipe 1, and the liquid collection pipe 1 is equipped with an anti-detachment disc 23 that cooperates with the liquid collection pipe 1. The top cover can be opened or closed relative to the box body. One end of the liquid collection pipe 1 is movably connected to the top cover, that is, the liquid collection pipe 1 can be inserted into the interface of the top cover and can be pulled out. The anti-detachment disc 23 is provided on the liquid collection pipe 1, and the diameter of the anti-detachment disc 23 is larger than the aperture of the interface of the top cover to prevent the liquid collection pipe 1 from being dislodged from the interface when subjected to accidental force.

[0026] When maintenance or cleaning of the inside of the filter box 3 is required, the top cover can be opened, the liquid collection pipe 1 can be pulled out from the interface, and the components inside the filter box 3 can be taken out for cleaning or replacement.

[0027] The contact surfaces of the limiting plate 20 and the movable plate 11 are made of mutually cooperating magnetic materials. When the movable plate 11 returns to its original position upward under the action of the tension spring 19, the center of the top surface of the movable plate 11 contacts the limiting plate 20, and the magnetic attraction between the two stably attracts the movable plate 11 onto the limiting plate 20. When the liquid flow pushes the movable plate 11 downward, it needs to overcome the combined action of the magnetic attraction (set to a slight magnetic attraction through the selection and amount of material) and the force of the tension spring 19.

[0028] The working process and usage of the multi-point synchronous collection device for leachate from underground pipes in sloping farmland of the present invention are as follows: During the collection process, the liquid enters the filter box 3 and enters the cap-shaped filter element 5 through the filter hole 6. The liquid flow drives the movable disc 11 to move (the liquid flows from the through groove 21, the gap between the movable disc 11 and the connecting pipe 4). The slide rod 18 moves along the fixed sleeve 17, the tension spring 19 is stretched, and the movable disc 11 moves away from the limiting disc 20. Due to the movement of the movable disc 11, the originally taut traction rope 10 is relaxed, so that the cap-shaped filter element 5 and the connecting pipe 4 (the top opening is funnel-shaped) can move slightly. Thus, during the filtration process, the position of the connecting pipe 4 does not move, while the cap-shaped filter element 5 makes relatively slight movements, which solves the problem that the traditional static filtration structure is prone to impurity accumulation.

[0029] Among them, the top surface of the connecting pipe 4 is higher than the bottom surface of the filter box 3 to prevent impurities at the bottom of the filter box 3 from entering the connecting pipe 4, and the connecting pipe 4 is always located inside the cap-shaped filter element 5, and the gap between the connecting pipe 4 and the cap-shaped filter element 5 is small when they move relative to each other. When the liquid stops entering the filter box 3, there is no liquid action, and the movable plate 11 is reset under the action of the tension spring 19. The middle part of the movable plate 11 is pressed against the limiting plate 20 again to reset.

[0030] Over time, regular cleaning is required to prevent the filter holes 6 from becoming clogged. By manually pressing the control ring 13, the drive rod 9 and the fixed ring 14 move upward, thereby moving the cleaning plate 8 along the sliding groove 7 to clean the filter holes 6. As the drive rod 9 moves upward, it drives the elastic lever 16 to move. The inclined elastic lever 16 acts on the edge of the movable disk 11, causing the movable disk 11 to rotate slightly by a small angle. At the same time, the fixed ring 14 rotates adaptively. The elastic lever 16 corrects the position of the movable disk 11 on the one hand, and drives the cap-shaped filter element 5 to rotate by a small angle on the other hand. In conjunction with the cleaning plate 8, it helps to clean the impurities accumulated in the filter holes 6.

Claims

1. A device for simultaneous collection of leachate from underground pipes on sloping farmland at multiple points, comprising: A collection box (2) with multiple collection tubes (1) is characterized in that: a filter box (3) is provided between the collection tubes (1) and the collection box (2), a connecting pipe (4) with a wide top and narrow bottom is installed at the bottom of the filter box (3), a cap-shaped filter element (5) is movably pressed on the connecting pipe (4), a number of rows of filter holes (6) are opened on the cap-shaped filter element (5), a connecting sliding groove (7) is opened on each row of filter holes (6), and a cleaning plate (8) is provided in the sliding groove (7); The filter box (3) is provided with a control component that passes through the connecting pipe (4) on the outside. The control component is connected to the cleaning plate (8) through the drive rod (9). A traction rope (10) is attached to the middle of the connecting pipe (4), and a movable disc (11) is fixed on the traction rope (10). A telescopic component is provided between the cap-shaped filter (5) and the movable disc (11).

2. The multi-point synchronous collection device for leachate from underground pipes on sloping farmland according to claim 1, characterized in that: The control component includes a connecting ring (12) fixed to the drive rod (9) and a control ring (13) sleeved on the outside of the connecting pipe (4). The control ring (13) is fixed to the drive rod (9). A fixing ring (14) is movable inside the cap-shaped filter (5) and fixed to multiple cleaning plates (8). The connecting ring (12) and the fixing ring (14) are rotatably connected.

3. The multi-point synchronous collection device for leachate from underground pipes on sloping farmland according to claim 1 or 2, characterized in that: A sealing sleeve (15) that is movably connected to the connecting pipe (4) and is in contact with the drive rod (9) is fixedly connected to it.

4. The multi-point synchronous collection device for leachate from underground pipes on sloping farmland according to claim 1 or 2, characterized in that: An elastic lever (16) is fixedly connected to the drive rod (9), and the elastic lever (16) is pressed against the edge of the movable disk (11).

5. The multi-point synchronous collection device for leachate from underground pipes on sloping farmland according to claim 1 or 2, characterized in that: The telescopic component includes a fixed sleeve (17) that is connected and fixed to the cap-shaped filter (5). A slide rod (18) that is connected and fixed to the movable disc (11) is movably sleeved inside the fixed sleeve (17). A tension spring (19) is rotatably connected between the slide rod (18) and the cap-shaped filter (5).

6. The multi-point synchronous collection device for leachate from underground pipes on sloping farmland according to claim 5, characterized in that: The bottom end of the fixed sleeve (17) is fixedly connected to the limiting plate (20), and the middle part of the movable plate (11) is provided with a through groove (21). The middle part of the top surface of the movable plate (11) is engaged with the limiting plate (20).

7. The multi-point synchronous collection device for leachate from underground pipes on sloping farmland according to claim 1 or 2, characterized in that: The bottom of the connecting pipe (4) is fixedly connected to a crossbar (22), which is connected to the traction rope (10).

8. The multi-point synchronous collection device for leachate from underground pipes on sloping farmland according to claim 1 or 2, characterized in that: The filter box (3) consists of an upper cover and a box body that can be opened and closed. The upper cover is movably connected to the liquid collection pipe (1). The liquid collection pipe (1) is provided with an anti-detachment disc (23) that cooperates with the liquid collection pipe (1).

9. The multi-point synchronous collection device for leachate from underground pipes on sloping farmland according to claim 6, characterized in that: The contact surfaces of the limiting plate (20) and the movable plate (11) are made of magnetically pleasing materials that cooperate with each other.

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