Leaf vegetable hydroponic planting device and method capable of reducing blue-green algae breeding
By introducing scrapers and cleaning brushes into the hydroponic planting device, combined with the drive mechanism and cleaning process, the problem of difficult cleaning of pipeline hydroponic planting devices has been solved, achieving effective reduction of blue-green algae and healthy vegetable growth.
Patent Information
- Application Number
- CN202511893236.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-01-16
AI Technical Summary
Pipeline hydroponic systems are difficult to clean thoroughly to remove impurities and algae, leading to the growth of blue-green algae, which affects the respiration and nutrient absorption of leafy vegetables' roots, thus impacting their growth.
Design a hydroponic planting device, including a scraper, a first cleaning brush and a second cleaning brush. The scraper is driven to move by a drive mechanism, and in conjunction with a specific cleaning process, a motor drives a unidirectional screw to rotate, which in turn drives a slider and an electromagnet to move, thereby achieving automated horizontal movement and thoroughly cleaning impurities in the hydroponic pipes.
It effectively reduces the growth of blue-green algae, ensures a healthy growth environment for hydroponic vegetables, improves cleaning efficiency, reduces the intensity of manual operation, and ensures the cleanliness of the inner wall of the pipe.
Smart Images
Figure CN121336705A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of hydroponic cultivation technology, and in particular relates to a device and method for hydroponic cultivation of leafy vegetables that reduces the proliferation of cyanobacteria. Background Technology
[0002] Currently, in the field of leafy vegetable hydroponic cultivation, pipe-type hydroponic cultivation devices are a relatively common and widely used cultivation method. This device usually consists of a series of interconnected pipes, with channels inside the pipes for plant root growth and nutrient solution flow. Planting holes are made on the pipes at certain intervals, and leafy vegetable seedlings are fixed in the planting holes through planting cups. Their roots extend into the pipes to absorb water and nutrients from the nutrient solution to maintain growth.
[0003] Because the pipe structure of a pipe-type hydroponic planting device is relatively narrow and enclosed, traditional cleaning tools, such as brushes and rags, are difficult to use in the narrow pipes when cleaning the inner walls. They cannot effectively remove impurities, residual nutrients, and biological deposits such as algae attached to the inner walls of the pipes. Even with some special cleaning equipment, such as high-pressure water guns, it is difficult to ensure that every corner of the pipe is cleaned. If the blue-green algae that is not cleaned properly grows, it will quickly form an algal bloom, covering the inner walls of the pipes and the surface of the roots, consuming a large amount of dissolved oxygen and affecting the respiration and nutrient absorption of the leafy vegetable roots. Summary of the Invention
[0004] This invention provides a hydroponic cultivation device and method for leafy vegetables that reduces cyanobacteria growth, aiming to solve the problem mentioned in the background art of difficult cleaning of pipe-type hydroponic cultivation devices, which leads to easy growth and reproduction of cyanobacteria and thus affects the growth of leafy vegetables.
[0005] To address the aforementioned problems, this invention provides a hydroponic cultivation device and method for leafy vegetables that reduces cyanobacteria growth. The device includes: a support frame and hydroponic pipes fixedly installed on the support frame for planting vegetables; multiple planting holes, each located at the top of the hydroponic pipes, for placing planting cups; a scraper plate located inside the hydroponic pipes for cleaning impurities; and a drive mechanism located at the bottom of the hydroponic pipes for moving the scraper plate. The drive mechanism includes: a mounting box fixedly installed at the bottom of the hydroponic pipes; a rotatable one-way screw installed in the mounting box, with a slider threaded onto the one-way screw for moving the scraper plate; an electromagnet fixedly installed on the top of the slider and attracted to the scraper plate; a motor fixedly installed on one side of the mounting box for driving the one-way screw to rotate, the motor's output shaft being fixedly connected to the one-way screw; a first cleaning brush located inside the hydroponic pipes for deep cleaning of impurities; and a second cleaning brush located on one side of the first cleaning brush.
[0006] Preferably, arc-shaped guide plates are fixedly installed on both sides of the scraper, and the two arc-shaped guide plates are used to guide the vegetable roots. The scraper and the first cleaning brush are located at the two ends of the hydroponic pipe, respectively.
[0007] Preferably, the support frame is provided with a storage tank for storing nutrient solution. A first filter box is fixedly installed on the top of the storage tank, and filter cotton is placed inside the first filter box. A first water pump for pumping nutrient solution into the hydroponic pipe is fixedly installed on the top of the inner wall of the storage tank. Two connecting pipes are installed on one side of the hydroponic pipe, and the bottom ends of the two connecting pipes are fixedly connected to the first filter box and the drain end of the first water pump, respectively. An oxygen pump is fixedly installed on one side of the storage tank, and the air pipe of the oxygen pump extends into the storage tank.
[0008] Preferably, the first filter box consists of a box body, a cover plate, a hook, and a buckle. The cover plate is disposed on the box body, and the pipe connector on the top of the cover plate is fixedly connected to the connecting pipe. The hook is fixedly installed on one side of the cover plate, and the buckle is fixedly installed on one side of the box body. The buckle is engaged with the hook.
[0009] Preferably, two water storage tanks are fixedly installed on the support frame, and a second water pump is fixedly installed in each of the two water storage tanks. A second filter box is fixedly installed on the top of the water storage tank, and filter cotton is placed in the second filter box. A fixing pipe is fixedly installed on one side of the hydroponic pipe, and the branch pipes of the two fixing pipes are respectively fixedly connected to the sewage pipes on both sides of the hydroponic pipe. The bottom ends of the two fixing pipes are respectively fixedly connected to the drainage ends of the second filter box and the second water pump.
[0010] Preferably, the hydroponic pipe is provided with a rotating mechanism for driving the first cleaning brush and the second cleaning brush to rotate. The rotating mechanism includes: a protective box disposed inside the hydroponic pipe, the protective box being rotatably connected to the first cleaning brush; an L-shaped frame fixedly installed on one side of the protective box, the L-shaped frame being rotatably connected to the second cleaning brush; a driving gear and two driven gears rotatably installed inside the protective box, both of the driven gears meshing with the driving gear; two sets of connecting sprockets respectively fixedly sleeved on the shafts of the two driven gears, the first cleaning brush, and the second cleaning brush; connecting chains respectively sleeved on each set of connecting sprockets, the connecting chains meshing with the connecting sprockets; a first rack fixedly installed on one side of the inner wall of the hydroponic pipe for driving the driving gear to rotate; and a connecting gear fixedly sleeved on the shaft of the driving gear, the connecting gear meshing with the first rack.
[0011] Preferably, two sets of guide rods are fixedly installed inside the hydroponic pipe, and guide blocks for guiding the protective box to move smoothly are slidably sleeved on the guide rods. The guide blocks are fixedly connected to the protective box. An arc-shaped plate is fixedly installed inside the hydroponic pipe, and the arc-shaped plate covers the guide rod located on the upper side, and the arc-shaped plate is slidably connected to the guide block.
[0012] Preferably, the protective box and the scraper plate are provided with a fixing mechanism for fixing the protective box to the scraper plate. The fixing mechanism includes: a rectangular base and a fixing block fixedly installed on one side of the protective box, the fixing block being located above the rectangular base; a positioning rod slidably installed on the fixing block, the positioning rod extending slidably into the rectangular base; a return spring sleeved on the positioning rod, the two ends of the return spring being fixedly connected to baffles on the fixing block and the positioning rod respectively; and an insert rod fixedly installed on the top of the scraper plate, the insert rod being L-shaped, and the top of the insert rod having a positioning groove that matches the positioning rod.
[0013] Preferably, a connecting rope is fixedly installed on one side of the protective box, and the bottom end of the connecting rope is fixedly connected to the positioning rod. A set of guide wheels for guiding the connecting rope is rotatably installed on one side of the protective box. An electric telescopic rod is fixedly installed on one side of the inner wall of the hydroponic pipe, and a fixed wheel is installed on the electric telescopic rod. The fixed wheel is located on one side of the connecting rope.
[0014] Preferably, the hydroponic cultivation method for leafy vegetables with a device for reducing cyanobacteria growth includes the following steps: Step 1: Place the planting cup into the planting hole of the hydroponic pipe to complete the transplanting of leafy vegetable seedlings. Then, add nutrient solution to the storage tank and start the aeration pump to ensure sufficient dissolved oxygen in the nutrient solution. Start the remote control system and set the cycle for nutrient solution circulation and pipe cleaning. Start the first water pump to circulate the nutrient solution in the storage tank through the hydroponic pipe to provide nutrients for the vegetables. The returned nutrient solution is filtered through the filter cotton in the first filter box to remove impurities and some algae spores. The purified nutrient solution is returned to the storage tank for reuse. This circulation process is carried out intermittently to reduce the settling time of the nutrient solution and inhibit the reproduction of blue-green algae. Step Two: When the preset cleaning cycle is reached, the cleaning program is started through the remote control system. First, the electromagnet is energized to generate magnetic force, which attracts the scraper. Then, the motor is started, driving the one-way screw to rotate, which in turn moves the slider and scraper slowly. The scraper moves along the bottom of the pipe, scraping off the sediment, algae film and other impurities attached to its inner wall and pushing them to the vicinity of the baffle at one end of the pipe. The arc-shaped guide plates on both sides of the scraper guide and protect the vegetable roots during this process. Step 3: After the scraper completes the coarse scraping and reaches the designated position, the second water pump is started to pump clean water from the water storage tank into the pipeline to preliminarily rinse the scraped impurities. The wastewater is discharged into the second filter box through the fixed pipe for filtration. Subsequently, the motor drives the scraper to slowly reset for a second scraping and starts another set of rinsing procedures to completely remove the remaining impurities from the pipeline.
[0015] Step 4: After the vegetables are hydroponically grown, and the vegetables and planting cups are removed, the motor switches to the quick cleaning mode. The scraper moves faster and covers a greater distance, so that the rod at the top of the scraper inserts into the rectangular seat on one side of the protective box and is limited and fixed by the positioning rod. When the scraper moves, it drives the protective box to move synchronously in the hydroponic pipe. At the same time, the movement of the protective box causes the connecting gear to gradually mesh with the first rack. As the protective box moves, the connecting gear rolls on the first rack, driving the drive gear to rotate. The drive gear drives the driven gear to rotate rapidly through the differential ratio. Then, through the transmission of the connecting sprocket and the connecting chain, it drives the first cleaning brush and the second cleaning brush to rotate synchronously, performing a deep cleaning of the inside of the hydroponic pipe.
[0016] Compared with related technologies, the hydroponic cultivation device and method for leafy vegetables that reduces cyanobacteria growth provided by this invention have the following beneficial effects: Compared with existing technologies, this solution provides a hydroponic cultivation device and method for leafy vegetables that reduces cyanobacteria growth.
[0017] In summary, the leafy vegetable hydroponic cultivation device and method of the present invention, which reduces cyanobacteria reproduction, can comprehensively and thoroughly clean impurities in hydroponic pipes by setting up a scraper, a first cleaning brush, and a second cleaning brush, and in conjunction with a specific cleaning process, thereby disrupting the cyanobacteria growth environment, effectively reducing cyanobacteria reproduction in hydroponic pipes, and ensuring a healthy growth environment for hydroponic vegetables. At the same time, the scraper is driven by a drive mechanism, and the unidirectional screw is driven by a motor to rotate, which in turn drives the slider and electromagnet to move, thereby realizing the horizontal movement of the scraper. The operation is simple and highly automated, and the cleaning can be started on a timed or on-demand basis, improving cleaning efficiency and reducing manual labor intensity. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the main cross-sectional structure of a leafy vegetable hydroponic cultivation device that reduces cyanobacteria growth, provided by the present invention. Figure 2 This is an assembly diagram of the hydroponic pipe, connecting pipe, and fixing pipe provided by the present invention; Figure 3 This is a side view of the support frame and multiple hydroponic pipes provided by the present invention. Figure 4 This is a partial front sectional view of the hydroponic pipe, scraper, and drive mechanism provided by the present invention. Figure 5 This is a partial front sectional view of the hydroponic pipe, the first cleaning brush, the second cleaning brush, and the sealing mechanism provided by the present invention. Figure 6 This is a top sectional view of the first cleaning brush, the protective box, and the second cleaning brush provided by the present invention. Figure 7 This is a side sectional view assembly drawing of the protective box and the first cleaning brush provided by the present invention; Figure 8 This is a side sectional view assembly drawing of the protective box and the second cleaning brush provided by the present invention; Figure 9 This is a front sectional view of the liquid storage tank, the first filter box, and the first water pump provided by the present invention. Figure 10 This is a side sectional view of the protective cover, second rack, first connecting gear, and second connecting gear provided by the present invention; Figure 11 This is an assembly diagram of the positioning rod and connecting rope provided by the present invention; Figure 12 This is a top view assembly drawing of the electromagnet, connecting box, and protective cover provided by the present invention; Figure 13 for Figure 5 The diagram shows an enlarged view of part A.
[0019] Reference numerals: 1. Support frame; 2. Hydroponic pipe; 3. Planting hole; 4. Scraper; 5. Mounting box; 6. One-way screw; 7. Slider; 8. Electromagnet; 9. Motor; 10. Arc-shaped guide plate; 11. Liquid storage tank; 12. Connecting pipe; 13. First filter box; 14. Filter cotton; 15. Cover plate; 16. First water pump; 17. Buckle; 18. Aeration pump; 19. Water storage tank; 20. Fixing pipe; 21. Second water pump; 22. Second filter box; 23. Protective box; 24. First cleaning brush; 25. L-shaped frame; 26. Second cleaning brush; 27. Drive gear; 28. Driven gear; 29. Connecting sprocket; 30. Connecting chain; 31. First rack; 32. Connecting gear; 33. Guide rod; 3 4. Guide block; 35. Arc plate; 36. Rectangular seat; 37. Fixing block; 38. Positioning rod; 39. Return spring; 40. Insert rod; 41. Connecting rope; 42. Guide wheel; 43. Electric telescopic rod; 44. Fixing wheel; 45. T-shaped rod; 46. Sealing frame; 47. Protective cover; 48. First threaded rod; 49. Threaded cylinder; 50. Second rack; 51. First connecting gear; 52. First differential sprocket; 53. First chain; 54. First conical differential wheel; 55. Baffle; 56. Second threaded rod; 57. Rotating rod; 58. Conical gear; 59. Second connecting gear; 60. Second differential sprocket; 61. Second chain; 62. Second conical differential wheel; 63. Connecting box; 64. Protective sleeve. Detailed Implementation
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.
[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0022] This invention provides a device and method for hydroponic cultivation of leafy vegetables that reduces cyanobacteria growth, such as... Figure 1-13 As shown, a hydroponic vegetable growing device for reducing cyanobacteria growth includes: a support frame 1 and hydroponic pipes 2 fixedly installed on the support frame 1 for growing vegetables; multiple planting holes 3, each opened at the top of the hydroponic pipes 2 for placing planting cups; a scraper 4 disposed inside the hydroponic pipes 2 for cleaning impurities; and a drive mechanism disposed at the bottom of the hydroponic pipes 2 for moving the scraper 4. The drive mechanism includes: a mounting box 5 fixedly installed at the bottom of the hydroponic pipes 2; a one-way screw 6 rotatably installed inside the mounting box 5, with a slider 7 threaded onto the one-way screw 6 for moving the scraper 4; an electromagnet 8 fixedly installed at the top of the slider 7 and attracted to the scraper 4; a motor 9 fixedly installed on one side of the mounting box 5 for driving the one-way screw 6 to rotate, the output shaft of the motor 9 being fixedly connected to the one-way screw 6; a first cleaning brush 24 disposed inside the hydroponic pipes 2 for deep cleaning impurities, and a second cleaning brush 26 located on one side of the first cleaning brush 24.
[0023] In this embodiment, the planting cup is first placed in the planting hole 3, and the vegetables are hydroponically grown through the hydroponic pipe 2. During the hydroponic process, the first water pump 16 is started at regular intervals to pump the nutrient solution in the storage tank 11 into the hydroponic pipe 2, and then it flows back to the storage tank 11 through the other end connecting pipe 12. Another connecting pipe 12 for the return flow is connected to the first filter box 13, and the filter cotton 14 is used to filter the impurities in the returned nutrient solution. The filtered nutrient solution flows back to the storage tank 11 for the next use. When it is necessary to clean the impurities attached to the bottom of the hydroponic pipe 2, the electromagnet 8 is activated by the remote control system to generate magnetism and attract the scraper plate 4. Then the motor 9 is activated, and the output shaft of the motor 9 drives the one-way screw 6 to rotate. The rotation of the one-way screw 6 drives the slider 7 to move horizontally, so that the slider 7 drives the electromagnet 8 to move slowly, which in turn drives the scraper plate 4 to move. The arc-shaped guide plate 10 guides the plant roots to prevent accidental damage. During the movement of the scraper plate 4, the impurities on the inner wall of the hydroponic pipe 2 are scraped to the side of the baffle 55. Then, the second water pump 21 is started to pump the water in the water storage tank 19 into the hydroponic pipe 2. The two fixed pipes 20 are used to drain the water and recycle the cleaning water to the second filter box 22 respectively. After cleaning the impurities, the motor 9 is started again to reset the scraper 4, scrape off the remaining impurities again, and clean the impurities out of the hydroponic pipe 2 through another set of second water pump 21 in cooperation with the fixed pipe 20, effectively reducing the reproduction of blue-green algae. By setting up a scraper plate 4, a first cleaning brush 24, and a second cleaning brush 26, and cooperating with a specific cleaning process, impurities in the hydroponic pipe 2 can be thoroughly cleaned, the growth environment of blue-green algae can be destroyed, the reproduction of blue-green algae in the hydroponic pipe can be effectively reduced, and the healthy growth environment of vegetables in hydroponics can be guaranteed. At the same time, the scraper plate 4 is driven to move by a drive mechanism, and the one-way screw 6 is driven to rotate by a motor 9, which drives the slider 7 and the electromagnet 8 to move, thereby realizing the horizontal movement of the scraper plate 4. The operation is simple and highly automated. Cleaning can be started on a timed basis or as needed, improving cleaning efficiency and reducing the intensity of manual operation.
[0024] In a further preferred embodiment of the present invention, arc-shaped guide plates 10 are fixedly installed on both sides of the scraper plate 4. The two arc-shaped guide plates 10 are used to guide the vegetable roots. The scraper plate 4 and the first cleaning brush 24 are respectively located at the two ends of the hydroponic pipe 2.
[0025] In this embodiment, during hydroponics, when the scraper 4 moves under the drive of the motor 9 to clean impurities on the inner wall of the hydroponic pipe 2, the arc-shaped guide plate 10 can guide the vegetable roots to ensure the normal growth of the vegetables. At the same time, the scraper 4 and the first cleaning brush 24 are located at the two ends of the hydroponic pipe 2, respectively. This layout allows the scraper 4 to scrape off the impurities on one side first when cleaning the pipe, and then the cleaning brush can perform a deeper cleaning. The division of labor is clear and the cleaning effect is improved.
[0026] In a further preferred embodiment of the present invention, a storage tank 11 for storing nutrient solution is provided on the support frame 1. A first filter box 13 is fixedly installed on the top of the storage tank 11, and filter cotton 14 is placed inside the first filter box 13. A first water pump 16 for pumping nutrient solution into the hydroponic pipe 2 is fixedly installed on the top of the inner wall of the storage tank 11. Two connecting pipes 12 are installed on one side of the hydroponic pipe 2, and the bottom ends of the two connecting pipes 12 are fixedly connected to the drain end of the first filter box 13 and the first water pump 16, respectively. An oxygen pump 18 is fixedly installed on one side of the storage tank 11, and the air pipe of the oxygen pump 18 extends into the storage tank 11.
[0027] In this embodiment, when the nutrient solution flows back from the hydroponic pipe 2 to the storage tank 11 via the first water pump 16, it first passes through the first filter box 13. The filter cotton 14 can intercept and filter impurities in the returned nutrient solution, making the nutrient solution flowing back to the storage tank 11 purer and preventing impurities from re-entering the hydroponic pipe 2 and affecting vegetable growth. The oxygen pump 18 can add oxygen to the nutrient solution in the storage tank 11, ensuring that there is enough dissolved oxygen in the nutrient solution to meet the needs of vegetable root respiration and promote the healthy growth of vegetables.
[0028] In a further preferred embodiment of the present invention, the first filter box 13 is composed of a box body, a cover plate 15, a hook and a buckle 17. The cover plate 15 is disposed on the box body, and the pipe connector at the top of the cover plate 15 is fixedly connected to the connecting pipe 12. The hook is fixedly installed on one side of the cover plate 15, and the buckle 17 is fixedly installed on one side of the box body. The buckle 17 is engaged with the hook.
[0029] In this embodiment, when the filter cotton 14 needs to be replaced or cleaned, the connection between the buckle 17 and the hook is opened, the cover plate 15 is removed, and the filter cotton 14 can be replaced. After the operation is completed, the cover plate 15 is put back on and fixed by the buckle 17 and the hook, which ensures the sealing and stability of the first filter box 13 and ensures that the filter cotton 14 can play its filtering role normally.
[0030] In a further preferred embodiment of the present invention, two water storage tanks 19 are fixedly installed on the support frame 1, and a second water pump 21 is fixedly installed in each of the two water storage tanks 19. A second filter box 22 is fixedly installed on the top of the water storage tank 19, and filter cotton 14 is placed in the second filter box 22. A fixing pipe 20 is fixedly installed on one side of the hydroponic pipe 2. The branch pipes of the two fixing pipes 20 are fixedly connected to the sewage pipes on both sides of the hydroponic pipe 2, and the bottom ends of the two fixing pipes 20 are fixedly connected to the drainage ends of the second filter box 22 and the second water pump 21, respectively.
[0031] In this embodiment, when cleaning the hydroponic pipe 2, the second water pump 21 pumps cleaning water into the hydroponic pipe 2 to flush the pipe. The flushed wastewater flows back to the second filter box 22 through the fixed pipe 20 for filtration. The filter cotton 14 can filter impurities in the cleaning water, making the recovered cleaning water cleaner and reusable for cleaning the pipe, thus realizing the recycling of water resources.
[0032] In a further preferred embodiment of the present invention, the hydroponic pipe 2 is provided with a rotating mechanism for driving the first cleaning brush 24 and the second cleaning brush 26 to rotate. The rotating mechanism includes: a protective box 23 disposed inside the hydroponic pipe 2, the protective box 23 being rotatably connected to the first cleaning brush 24; an L-shaped frame 25 fixedly installed on one side of the protective box 23, the L-shaped frame 25 being rotatably connected to the second cleaning brush 26; a driving gear 27 and two driven gears 28 rotatably installed inside the protective box 23, both of the driven gears 28 being driven by… The driving gear 27 meshes with the driving gear; two sets of connecting sprockets 29 are fixedly sleeved on the shafts of the two driven gears 28, the first cleaning brush 24, and the second cleaning brush 26 respectively; connecting chains 30 are respectively sleeved on each set of connecting sprockets 29, and the connecting chains 30 mesh with the connecting sprockets 29; a first rack 31 is fixedly installed on one side of the inner wall of the hydroponic pipe 2 to drive the driving gear 27 to rotate; a connecting gear 32 is fixedly sleeved on the shaft of the driving gear 27, and the connecting gear 32 meshes with the first rack 31.
[0033] In this embodiment, after the vegetables and planting cup 3 are removed after hydroponics, the motor 9 is adjusted by the control system to enter the rapid cleaning mode. The slider 7 and scraper 4 are driven by the one-way screw 6 to quickly approach the cleaning brush. The two sets of water tanks 19 and the second water pump 21 are used to make the liquid level in the hydroponic pipe 2 reach 1 / 4. The scraper 4 drives the insertion rod 40 to insert into the rectangular seat 36. The return spring 39 pushes the positioning rod 38 to move upward. When the positioning groove of the insertion rod 40 is below the positioning rod 38, the return spring 39 releases its elasticity to push the positioning rod 38 into the positioning groove to limit the insertion rod 40. Then, the motor 9 is started to drive the one-way screw 6 to rotate in the opposite direction, which drives the scraper 4, the rectangular seat 36 and the protective box 23 to move synchronously. When the protective box 23 moves inside the hydroponic pipe 2, the connecting gear 32 gradually meshes with the first rack 31. As the protective box 23 moves, the connecting gear 32 rolls on the first rack 31, thereby driving the drive gear 27 to rotate. Since the diameter of the drive gear 27 is much larger than the diameter of the driven gear 28, the drive gear 27 drives the driven gear 28 to rotate rapidly through the differential ratio when rotating. Then, through the transmission of the connecting sprocket 29 and the connecting chain 30, the first cleaning brush 24 and the second cleaning brush 26 are driven to rotate synchronously to thoroughly clean the inside of the hydroponic pipe 2.
[0034] In a further preferred embodiment of the present invention, two sets of guide rods 33 are fixedly installed inside the hydroponic pipe 2. Guide blocks 34 for guiding the protective box 23 to move smoothly are slidably sleeved on the guide rods 33. The guide blocks 34 are fixedly connected to the protective box 23. An arc-shaped plate 35 is fixedly installed inside the hydroponic pipe 2. The arc-shaped plate 35 covers the guide rods 33 located on the upper side, and the arc-shaped plate 35 is slidably connected to the guide blocks 34.
[0035] In this embodiment, during the movement of the protective box 23, the guide block 34 slides along the guide rod 33. Since the position of the guide rod 33 is fixed, the guide block 34 can only move in a straight line under the guidance of the guide rod 33, thereby limiting the movement trajectory of the protective box 23 and preventing the protective box 23 from deviating or shaking during the movement. This ensures that the protective box 23 can move in the predetermined direction, so that the first cleaning brush 24 and the second cleaning brush 26 connected to the protective box 23 can accurately reach the designated position and effectively clean the inside of the hydroponic pipe 2. The arc plate 35 can play a certain protective role for the guide block 34, preventing impurities from entering between the guide block 34 and the guide rod 33 and affecting the sliding of the guide block 34.
[0036] In a further preferred embodiment of the present invention, the protective box 23 and the scraper plate 4 are provided with a fixing mechanism for fixing the protective box 23 to the scraper plate 4. The fixing mechanism includes: a rectangular base 36 and a fixing block 37 fixedly installed on one side of the protective box 23, the fixing block 37 being located above the rectangular base 36; a positioning rod 38 slidably installed on the fixing block 37, the positioning rod 38 slidably extending into the rectangular base 36; a return spring 39 sleeved on the positioning rod 38, the two ends of the return spring 39 being fixedly connected to the baffles on the fixing block 37 and the positioning rod 38 respectively; and an insertion rod 40 fixedly installed on the top of the scraper plate 4, the insertion rod 40 being L-shaped, and the top of the insertion rod 40 having a positioning groove, the positioning groove being adapted to the positioning rod 38.
[0037] In this embodiment, during the initial stage of scraping the material inside the pipe by the scraper 4, its movement is slow and the movement distance is limited; specifically, the furthest position that the scraper 4 moves to the right is to the left of the baffle 55. In this state, due to the distance factor, the insertion rod 40 on the scraper 4 is not inserted into the rectangular seat 36. When motor 9 switches to the fast cleaning mode, the moving speed of scraper 4 increases, and the moving distance also increases accordingly. As the moving distance of scraper 4 increases, the insertion rod 40 can be smoothly inserted into the rectangular seat 36 fixedly installed on one side of the protective box 23. Since both the insertion rod 40 and the positioning rod 38 are inclined on one side, during the insertion of the insertion rod 40, the positioning rod 38 will change its movement trajectory as the insertion rod 40 is inserted, causing the positioning rod 38 to rise and be located on the upper surface of the insertion rod 40. When the positioning groove of the insertion rod 40 is located below the positioning rod 38, the return spring 39 releases its elastic force, causing the positioning rod 38 to spring into the positioning groove, limiting the insertion rod 40, thereby connecting the protective box 23 with the scraper 4, which facilitates subsequent deep cleaning operations.
[0038] In a further preferred embodiment of the present invention, a connecting rope 41 is fixedly installed on one side of the protective box 23, the bottom end of the connecting rope 41 is fixedly connected to the positioning rod 38, a set of guide wheels 42 for guiding the connecting rope 41 is rotatably installed on one side of the protective box 23, an electric telescopic rod 43 is fixedly installed on one side of the inner wall of the hydroponic pipe 2, and a fixed wheel 44 is installed on the electric telescopic rod 43, the fixed wheel 44 being located on one side of the connecting rope 41.
[0039] In this embodiment, when it is necessary to release the fixation, the electric telescopic rod 43 is activated. The electric telescopic rod 43 drives the fixed wheel 44 to move to one side. The fixed wheel 44 contacts the connecting rope 41 and pushes the connecting rope 41 to deform. When the connecting rope 41 moves, it pulls the positioning rod 38 to slide upward, so that the positioning rod 38 is separated from the insert rod 40, thereby realizing the separation of the protective box 23 from the scraper 4, which facilitates the subsequent reversal of the motor 9 and the reset of the scraper 4.
[0040] To further improve the performance of this device, in addition to the above-mentioned solutions, this solution also includes the following embodiments: In another embodiment of the present invention, the hydroponic pipe 2 is provided with a sealing mechanism for sealing the planting hole 3 during deep cleaning of the hydroponic pipe 2. The sealing mechanism includes: a T-shaped rod 45 fixedly installed on the top of the hydroponic pipe 2; a sealing frame 46 slidably installed on the T-shaped rod 45 and adapted to the planting hole 3; a protective cover 47 fixedly installed on one side of the hydroponic pipe 2; a first threaded rod 48 rotatably installed on one side of the protective cover 47; and a threaded cylinder 49 threadedly sleeved on the first threaded rod 48 and fixedly connected to the sealing frame 46. A second rack 50 is fixedly installed on the right side of the protective box 23; a first connecting gear 51 is rotatably installed inside the protective cover 47, and the first connecting gear 51 meshes with the second rack 50; two first differential sprockets 52 are respectively installed on the shaft of the first connecting gear 51 and inside the protective cover 47, and a first chain 53 is sleeved on the two first differential sprockets 52; a first conical differential wheel 54 is fixedly sleeved on the first threaded rod 48 and the shaft of the first differential sprocket 52 located inside the protective cover 47, and the two first conical differential wheels 54 mesh with each other.
[0041] In this embodiment, when the protective box 23 moves inside the hydroponic pipe 2, the second rack 50 on the right side of the protective box 23 moves simultaneously. When the second rack 50 moves, it drives the first connecting gear 51 to rotate. Then, through the two first differential sprockets 52, the first chain 53, and the first conical differential wheel 54, the linear motion of the second rack 50 is converted into the rotational motion of the first threaded rod 48. The rotation of the first threaded rod 48 drives the threaded cylinder 49 to move to the left. The threaded cylinder 49 drives the sealing frame 46 to move along the T-shaped rod 45. The sealing plate on the sealing frame 46 gradually aligns with the planting hole 3, thereby sealing the planting hole 3 and preventing water from splashing out when the cleaning brush rotates.
[0042] In another embodiment of the present invention, the hydroponic pipe 2 is provided with an isolation mechanism for isolating the nutrient solution to prevent the first cleaning brush 24 and the second cleaning brush 26 from being immersed in water for a long time. The isolation mechanism includes: a connection port opened at the bottom of the hydroponic pipe 2, the connection port being located between the first cleaning brush 24 and the branch pipe opening of the fixed pipe 20, and a sealing strip installed inside the connection port; a baffle 55 slidably installed inside the connection port for isolating the nutrient solution; an L-shaped block fixedly installed at the bottom of the hydroponic pipe 2; a second threaded rod 56 rotatably installed on the L-shaped block and threadedly connected to the baffle 55; and a rotatably disposed on the inner wall of the protective cover 47. The bottom rotating rod 57; bevel gears 58 respectively fixedly sleeved on the rotating rod 57 and the second threaded rod 56, the two bevel gears 58 meshing with each other; a second connecting gear 59 rotatably installed inside the protective cover 47, the second connecting gear 59 meshing with the second rack 50; a second differential sprocket 60 respectively provided on the rotating shaft of the second connecting gear 59 and the inner side of the protective cover 47, the two second differential sprockets 60 being sleeved with a second chain 61; a second conical differential wheel 62 respectively fixedly sleeved on the rotating rod 57 and the rotating shaft of the second differential sprocket 60 located inside the protective cover 47, the two second conical differential wheels 62 meshing with each other.
[0043] In this embodiment, during the process of the protective box 23 moving to the right and resetting the protective box 23, the second rack 50 moves to drive the second connecting gear 59 to rotate. Then, through the second differential sprocket 60, the second chain 61 and the second conical differential wheel 62, the rotational force of the second connecting gear 59 is transmitted to the rotating rod 57. Then, through the conical gear 58, it is transmitted to the second threaded rod 56, causing it to rotate. The rotation of the second threaded rod 56 drives the baffle 55 to move upward, causing the baffle 55 to rise, thereby isolating the nutrient solution and preventing the cleaning brush from being soaked in the nutrient solution for a long time. At the same time, when the protective box 23 and the cleaning brush move to the left, the baffle 55 will descend, without affecting the movement of the protective box 23.
[0044] In another embodiment of the present invention, a protective sleeve 64 is provided on the wire of the electromagnet 8, a connecting box 63 is fixedly installed on one side of the support frame 1, one side of the connecting box 63 is fixedly connected to the protective sleeve 64, and one end of the protective sleeve 64 is fixedly connected to the slider 7.
[0045] In this embodiment, the protective sleeve 64 fitted on the wire of the electromagnet 8 can protect the wire of the electromagnet 8, extend the service life of the wire, and ensure that the electromagnet 8 can be energized and work normally. At the same time, one end of the protective sleeve 64 is fixedly connected to the slider 7, and the connecting box 63 can fix and support the protective sleeve 64, so that one end of the protective sleeve 64 is kept in a stable position, and at the same time, it can further protect the wire and ensure that the electrical connection of the entire device is stable and reliable.
[0046] This invention also provides a method for hydroponic cultivation of leafy vegetables with a device for reducing cyanobacteria growth, comprising the following steps: Step 1: Place the planting cup into the planting hole of the hydroponic pipe to complete the transplanting of leafy vegetable seedlings. Then add nutrient solution to the storage tank and start the oxygenation pump to ensure sufficient dissolved oxygen in the nutrient solution. Start the remote control system and set the cycle of nutrient solution circulation and pipe cleaning. The first water pump is started to circulate the nutrient solution in the storage tank through the hydroponic pipes to provide nutrients for the vegetables. The returned nutrient solution is filtered through the filter cotton in the first filter box to remove impurities and some algae spores. The purified nutrient solution is then returned to the storage tank for reuse. This circulation process is carried out intermittently to reduce the settling time of the nutrient solution and inhibit the growth of blue-green algae. Step Two: When the preset cleaning cycle is reached, the cleaning program is started through the remote control system. First, the electromagnet is energized to generate magnetic force, which attracts the scraper. Then, the motor is started, driving the one-way screw to rotate, which in turn moves the slider and scraper slowly. The scraper moves along the bottom of the pipe, scraping off the sediment, algae film and other impurities attached to its inner wall and pushing them to the vicinity of the baffle at one end of the pipe. The arc-shaped guide plates on both sides of the scraper guide and protect the vegetable roots during this process. Step 3: After the scraper completes the coarse scraping and reaches the designated position, the second water pump is started to pump clean water from the water storage tank into the pipeline to preliminarily rinse the scraped impurities. The wastewater is discharged into the second filter box through the fixed pipe for filtration. Subsequently, the motor drives the scraper to slowly reset for a second scraping and starts another set of rinsing procedures to completely remove the remaining impurities from the pipeline.
[0047] Step 4: After the vegetables are hydroponically grown, and after removing the vegetables and planting cup 3, the motor 9 switches to the quick cleaning mode. The scraper 4 moves faster and covers a greater distance, so that the insertion rod 40 at the top of the scraper 4 is inserted into the rectangular seat 36 on one side of the protective box 23 and is limited and fixed by the positioning rod. When the scraper 4 moves, it drives the protective box 23 to move synchronously in the hydroponic pipe 2. When the protective box 23 moves, the second rack 50 on its right side drives the first connecting gear 51 to rotate. Through the two first differential sprockets 52, the first chain 53 and the first conical differential wheel 54, the linear motion of the second rack 50 is converted into the rotational motion of the first threaded rod 48. The rotation of the first threaded rod 48 drives the threaded cylinder 49 to move to the left. The threaded cylinder 49 drives the sealing frame 46 to move along the T-shaped rod 45. The sealing plate on the sealing frame 46 gradually aligns with the planting hole 3, thus sealing the planting hole 3. In addition, the movement of the second rack 50 will also synchronously drive the second connecting gear 59 to rotate. Through the second differential sprocket 60, the second chain 61 and the second conical differential sprocket 62, the rotational force of the second connecting gear 59 is transmitted to the rotating rod 57, and then to the second threaded rod 56 through the conical gear 58, causing it to rotate. The rotation of the second threaded rod 56 drives the baffle 55 to move downward, causing the baffle 55 to descend, thus not affecting the movement of the protective box 23. At the same time, the movement of the protective box 23 causes the connecting gear 32 to gradually mesh with the first rack 31. As the protective box 23 moves, the connecting gear 32 rolls on the first rack 31, driving the driving gear 27 to rotate. The driving gear 27 drives the driven gear 28 to rotate rapidly through the differential ratio. Then, through the transmission of the connecting sprocket 29 and the connecting chain 30, the first cleaning brush 24 and the second cleaning brush 26 rotate synchronously to perform deep cleaning of the inside of the hydroponic pipe 2. Step 5: When it is necessary to release the protective box 23 from the scraper 4, start the electric telescopic rod 43. The electric telescopic rod 43 drives the fixed wheel 44 to move to one side. The fixed wheel 44 contacts the connecting rope 41 and pushes the connecting rope 41 to deform. When the connecting rope 41 moves, it pulls the positioning rod 38 to slide up, so that the positioning rod 38 is separated from the insert rod 40, thereby separating the protective box 23 from the scraper 4. This makes it easier for the motor 9 to reverse and reset the scraper 4.
[0048] In summary, compared with related technologies, this device, through the cooperation of the protective box and the scraper, can drive the protective box and the cleaning brush to thoroughly remove dirt and impurities from the inner wall of the pipe in the rapid cleaning mode. Compared with traditional cleaning methods, it greatly improves the thoroughness of cleaning, ensures the smooth flow and cleanliness of hydroponic pipes, and provides a good environment for the growth of hydroponic plants.
[0049] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.
[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.
Claims
1. A hydroponic cultivation device for leafy vegetables that reduces cyanobacteria growth, characterized in that, include: A support frame and hydroponic pipes for growing vegetables, which are fixedly installed on the support frame; Multiple planting holes are provided at the top of the hydroponic pipes for placing the planting cups; A scraper plate installed inside the hydroponic pipe for cleaning impurities inside the hydroponic pipe; A drive mechanism located at the bottom of the hydroponic pipe for moving the scraper plate, the drive mechanism comprising: a mounting box fixedly installed at the bottom of the hydroponic pipe; A one-way screw is rotatably installed inside the mounting box. A slider for moving a scraper is threaded onto the one-way screw. An electromagnet is fixedly installed on the top of the slider and attracted to the scraper. A motor is fixedly installed on one side of the mounting box for driving the one-way screw to rotate. The output shaft of the motor is fixedly connected to the one-way screw. A first cleaning brush and a second cleaning brush located on one side of the first cleaning brush are both installed inside the hydroponic pipe for deep cleaning of impurities inside the hydroponic pipe.
2. The hydroponic cultivation device for leafy vegetables with reduced cyanobacteria growth as described in claim 1, characterized in that, Both sides of the scraper are fixedly installed with arc-shaped guide plates. The two arc-shaped guide plates are used to guide the vegetable roots. The scraper and the first cleaning brush are located at the two ends of the hydroponic pipe, respectively.
3. The hydroponic cultivation device for leafy vegetables with reduced cyanobacteria growth as described in claim 1, characterized in that, The support frame is equipped with a storage tank for storing nutrient solution. A first filter box is fixedly installed on the top of the storage tank, and filter cotton is placed inside the first filter box. A first water pump for pumping nutrient solution into the hydroponic pipe is fixedly installed on the top of the inner wall of the storage tank. Two connecting pipes are installed on one side of the hydroponic pipe, and the bottom ends of the two connecting pipes are fixedly connected to the first filter box and the drain end of the first water pump, respectively. An oxygen pump is fixedly installed on one side of the storage tank, and the air pipe of the oxygen pump extends into the storage tank.
4. The hydroponic cultivation device for leafy vegetables with reduced cyanobacteria growth as described in claim 3, characterized in that, The first filter box consists of a box body, a cover plate, a hook, and a buckle. The cover plate is disposed on the box body, and the pipe connector on the top of the cover plate is fixedly connected to the connecting pipe. The hook is fixedly installed on one side of the cover plate, and the buckle is fixedly installed on one side of the box body. The buckle is engaged with the hook.
5. The hydroponic cultivation device for leafy vegetables with reduced cyanobacteria growth as described in claim 1, characterized in that, Two water tanks are fixedly installed on the support frame. A second water pump is fixedly installed in each of the two water tanks. A second filter box is fixedly installed on the top of the water tank. Filter cotton is placed in the second filter box. A fixing pipe is fixedly installed on one side of the hydroponic pipe. The branch pipes of the two fixing pipes are fixedly connected to the sewage pipes on both sides of the hydroponic pipe. The bottom ends of the two fixing pipes are fixedly connected to the drainage ends of the second filter box and the second water pump, respectively.
6. The hydroponic cultivation device for leafy vegetables with reduced cyanobacteria growth as described in claim 1, characterized in that, The hydroponic pipe is equipped with a rotating mechanism for driving the first and second cleaning brushes to rotate. The rotating mechanism includes: a protective box disposed inside the hydroponic pipe, the protective box being rotatably connected to the first cleaning brush; an L-shaped frame fixedly installed on one side of the protective box, the L-shaped frame being rotatably connected to the second cleaning brush; a driving gear and two driven gears rotatably installed inside the protective box, both of the driven gears meshing with the driving gear; two sets of connecting sprockets respectively fixedly sleeved on the shafts of the two driven gears, the first cleaning brush, and the second cleaning brush; connecting chains respectively sleeved on each set of connecting sprockets, the connecting chains meshing with the connecting sprockets; a first rack fixedly installed on one side of the inner wall of the hydroponic pipe for driving the driving gear to rotate; and a connecting gear fixedly sleeved on the shaft of the driving gear, the connecting gear meshing with the first rack.
7. The leafy vegetable hydroponic cultivation device with reduced cyanobacteria growth as described in claim 6, characterized in that, Two sets of guide rods are fixedly installed inside the hydroponic pipe. Guide blocks for guiding the protective box to move smoothly are slidably sleeved on the guide rods. The guide blocks are fixedly connected to the protective box. An arc-shaped plate is fixedly installed inside the hydroponic pipe. The arc-shaped plate covers the guide rod located on the upper side, and the arc-shaped plate is slidably connected to the guide block.
8. The hydroponic cultivation device for leafy vegetables with reduced cyanobacteria growth as described in claim 6, characterized in that, The protective box and the scraper plate are provided with a fixing mechanism for fixing the protective box to the scraper plate. The fixing mechanism includes: a rectangular base and a fixing block fixedly installed on one side of the protective box, the fixing block being located above the rectangular base; a positioning rod slidably installed on the fixing block, the positioning rod extending slidably into the rectangular base; a return spring sleeved on the positioning rod, the two ends of the return spring being fixedly connected to baffles on the fixing block and the positioning rod respectively; and an insert rod fixedly installed on the top of the scraper plate, the insert rod being L-shaped, and the top of the insert rod having a positioning groove that is adapted to the positioning rod.
9. The hydroponic cultivation device for leafy vegetables with reduced cyanobacteria growth as described in claim 8, characterized in that, A connecting rope is fixedly installed on one side of the protective box, and the bottom end of the connecting rope is fixedly connected to the positioning rod. A set of guide wheels for guiding the connecting rope is rotatably installed on one side of the protective box. An electric telescopic rod is fixedly installed on one side of the inner wall of the hydroponic pipe, and a fixed wheel is installed on the electric telescopic rod. The fixed wheel is located on one side of the connecting rope.
10. The method for hydroponic cultivation of leafy vegetables with a device for reducing cyanobacteria growth according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Place the planting cup into the planting hole of the hydroponic pipe to complete the transplanting of leafy vegetable seedlings. Then, add nutrient solution to the storage tank and start the aeration pump to ensure sufficient dissolved oxygen in the nutrient solution. Start the remote control system and set the cycle of nutrient solution circulation and pipe cleaning. Start the first water pump to circulate the nutrient solution in the storage tank through the hydroponic pipe to provide nutrients for the vegetables. The returned nutrient solution is filtered through the filter cotton in the first filter box to remove impurities and some algae spores. The purified nutrient solution is returned to the storage tank for reuse. This cycle is performed intermittently to reduce the settling time of the nutrient solution and inhibit the growth of cyanobacteria. Step Two: When the preset cleaning cycle is reached, the cleaning program is started through the remote control system. First, the electromagnet is energized to generate magnetic force, which attracts the scraper. Then, the motor is started, driving the one-way screw to rotate, which in turn moves the slider and scraper slowly. The scraper moves along the bottom of the pipe, scraping off the sediment, algae film and other impurities attached to its inner wall and pushing them to the vicinity of the baffle at one end of the pipe. The arc-shaped guide plates on both sides of the scraper guide and protect the vegetable roots during this process. Step 3: After the scraper completes the coarse scraping and reaches the designated position, the second water pump is started to pump clean water from the water storage tank into the pipeline to preliminarily rinse the scraped impurities. The wastewater is discharged into the second filter box through the fixed pipe for filtration. Subsequently, the motor drives the scraper to slowly reset for a second scraping and starts another set of rinsing procedures to completely remove the remaining impurities from the pipeline.
11. Step 4: After the vegetables are hydroponically grown, after removing the vegetables and planting cups, the motor switches to the fast cleaning mode, the scraper moves faster and covers a greater distance, so that the stick at the top of the scraper inserts into the rectangular seat on one side of the protective box, and is limited and fixed by the positioning rod. When the scraper moves, it drives the protective box to move synchronously in the hydroponic pipe. At the same time, the movement of the protective box causes the connecting gear to gradually mesh with the first rack. As the protective box moves, the connecting gear rolls on the first rack, driving the drive gear to rotate. The drive gear drives the driven gear to rotate rapidly through the differential ratio. Then, through the transmission of the connecting sprocket and the connecting chain, it drives the first cleaning brush and the second cleaning brush to rotate synchronously, performing a deep cleaning of the inside of the hydroponic pipe.