Sweet potato planting fertilizer device

Abstract

This invention relates to the field of fertilization technology for sweet potato cultivation, and discloses a fertilization device for sweet potato cultivation, including a movable base, universal wheels fixedly connected to the bottom of the movable base, a support fixedly connected to the bottom of the movable base, a handrail fixedly connected to the top of the movable base, a support frame fixedly connected to the bottom of the movable base, a mixing device arranged above the movable base, a soil-scraping device arranged below the movable base, and a covering device arranged below the movable base. When the motor of this invention is turned on, the output end drives the rotating rod to rotate. When fertilizer enters the area above the filter plate through the hopper, the rotating rod rotates, driving the rollers to rotate above the filter plate via the rotating frame. The rollers compact the fertilizer above the filter plate, preventing large pieces of fertilizer from causing over-fertilization and losses to the sweet potatoes. At the same time, when the rotating frame rotates, it drives the shovel to rotate above the filter plate, causing the shovel to push the fertilizer above the filter plate, accelerating the fertilizer falling speed.

Description

Technical Field

[0001] This invention relates to the technical field of fertilization equipment for sweet potato cultivation, specifically a fertilization device for sweet potato cultivation. Background Technology

[0002] Sweet potato is an annual herbaceous plant belonging to the genus *Ipomoea* of the Convolvulaceae family. Its scientific name is *Ipomoea purpurea* or sweet potato. It originated in Central America and was introduced to my country during the Ming Dynasty. Its underground tubers are edible. Commonly known as sweet potato, yam, red yam, sweet potato, white yam, etc. The underground part consists of round, oval, or spindle-shaped tubers with a yellowish-brown or purplish-red outer skin, rich in starch, dietary fiber, and various vitamins.

[0003] An existing fertilization device for sweet potato cultivation has several drawbacks. Firstly, insufficient mixing of the fertilizer by the machine can lead to an over- or under-mixing of certain fertilizers, negatively impacting the sweet potatoes. Secondly, inadequate crushing and compaction of the fertilizer results in large clumps falling during application, causing over-fertilization and hindering sweet potato growth. Summary of the Invention

[0004] The purpose of this invention is to provide a fertilization device for sweet potato cultivation to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a fertilization device for sweet potato planting, comprising a movable base, universal wheels fixedly connected to the bottom of the movable base, a support fixedly connected to the bottom of the movable base, a handrail fixedly connected to the top of the movable base, a support frame fixedly connected to the bottom of the movable base, a mixing device arranged above the movable base, a soil-scraping device arranged below the movable base, and a covering device arranged below the movable base.

[0007] The mixing device includes a support plate, the bottom of which is fixedly connected to the top of a movable base. A mixing cylinder is fixedly connected to the top of the support plate, a hopper is fixedly connected to the top of the mixing cylinder, a support frame is fixedly connected to the top of the mixing cylinder, a motor is fixedly connected to the inner wall of the support frame, a rotating rod is fixedly connected to the output end of the motor, a rotating frame is fixedly connected to the surface of the rotating rod, a filter plate is fixedly connected to the inner wall of the mixing cylinder, rollers are rotatably connected to the inner wall of the filter plate, and a shovel plate is fixedly connected to the inner wall of the rotating frame.

[0008] Furthermore, a scraper is fixedly connected to the surface of the rotating rod, a stirring plate is fixedly connected to the surface of the rotating rod, an annular scraper is fixedly connected to the surface of the rotating rod, a discharge port is fixedly connected to the bottom of the mixing cylinder, a valve is provided on the surface of the discharge port, and a weighing sensor is provided at the bottom of the support spring plate.

[0009] Furthermore, the hopper penetrates the mixing cylinder and extends into the interior of the mixing cylinder, the rotating rod penetrates the mixing cylinder and extends into the interior of the discharge port, the roller is located above the filter plate, and the bottom of the shovel plate contacts the top of the filter plate.

[0010] Furthermore, the surface of the scraper is in contact with the inner wall of the mixing cylinder, the stirring plate is located below the filter plate, the scraper is located above the stirring plate, the bottom of the annular scraper is in contact with the bottom of the inner wall of the mixing cylinder, and the discharge port passes through the movable base and extends to the outer end of the valve.

[0011] Furthermore, the soil-shoveling device includes a second motor, the surface of which is fixedly connected to the inner wall of the support. An anti-clogging plate is fixedly connected to the surface of the rotating rod. A second rotating rod is fixedly connected to the output end of the second motor. A threaded rod is fixedly connected to the end of the second rotating rod away from the second motor. A movable plate is threadedly connected to the surface of the threaded rod. A lifting slide rod is fixedly connected to the inner wall of the movable plate away from the threaded rod. A soil-shoveling plate is fixedly connected to the end of the lifting slide rod. A bidirectional telescopic rod is fixedly connected to the surface of the lifting slide rod. A unidirectional electric push rod is fixedly connected to the inner wall of the support frame. A ring is fixedly connected to the end of the discharge port. A flexible hose is fixedly connected to the end of the ring. A force-applying plate is fixedly connected to the surface of the flexible hose. An elastic rod is fixedly connected to the surface of the force-applying plate. A moving groove is formed on the inner wall of the movable base. A telescopic rod is fixedly connected to the inner wall of the moving groove.

[0012] Furthermore, the surface of the anti-blocking plate is adapted to the inner wall of the discharge port, the threaded rod passes through the moving plate and extends to the outer end of the moving plate, the end of the lifting slide rod away from the soil-scraping plate is slidably connected to the inner wall of the moving groove, the end of the bidirectional telescopic rod away from the lifting slide rod is fixedly connected to the output end of the unidirectional electric push rod, and a sensor is provided on the surface of the soil-scraping plate.

[0013] Furthermore, the output end of the unidirectional electric actuator is fixedly connected to the top of the force-applying plate, the flexible hose observes the force-applying plate and extends to the outer end of the force-applying plate, the end of the elastic rod away from the force-applying plate is fixedly connected to the bottom of the movable base, and the end of the telescopic rod away from the movable groove is fixedly connected to the surface of the lifting slide rod.

[0014] Furthermore, the covering device includes a rotating support rod, the end of which is fixedly connected to the bottom of the movable base. A first pulley is fixedly connected to the surface of the second rotating rod, and a belt is drivenly connected to the inner wall of the first pulley. A second pulley is rotatably connected to the end of the rotating support rod away from the movable base. A second threaded rod is fixedly connected to the surface of the second pulley, and a sliding ring plate is threadedly connected to the surface of the second threaded rod. A sliding groove is formed on the inner wall of the movable base. A fixed telescopic rod is fixedly connected to the bottom of the movable base. A lifting slide rail is fixedly connected to the end of the fixed telescopic rod away from the movable base. A lifting sleeve is slidably connected to the surface of the lifting slide rail. A cover plate is fixedly connected to the bottom of the lifting sleeve. A retractable rod is fixedly connected to the inner wall of the sliding groove. A second lifting slide rod is fixedly connected to the end of the retractable rod away from the sliding groove. A long plate is fixedly connected to the surface of the lifting slide rail. A flexible plate is fixedly connected to the top of the long plate. A thin rod is fixedly connected to the end of the flexible plate away from the long plate.

[0015] Furthermore, the belt is connected to the inner wall of the second pulley away from the inner wall of the first pulley, the second threaded rod passes through the sliding ring plate and extends to the outer end of the sliding ring plate, the surface of the second lifting slide rod is slidably connected to the inner wall of the slide groove, and the end of the second lifting slide rod away from the slide groove is fixedly connected to the top of the cover plate.

[0016] Furthermore, the end of the second lifting slide rod away from the slide groove is slidably connected to the inner wall of the lifting slide rail, the second lifting slide rod passes through the lifting slide sleeve and extends to the top of the cover plate, and the end of the thin rod away from the soft plate is fixedly connected to the top of the force application plate.

[0017] The present invention has the following beneficial effects:

[0018] When the motor of this invention is turned on, the output end drives the rotating rod to rotate. When fertilizer enters the area above the filter plate through the hopper, the rotating rod rotates, driving the rollers to rotate above the filter plate via the rotating frame. The rollers crush the fertilizer above the filter plate, preventing large pieces of fertilizer from causing over-fertilization and losses to the sweet potatoes. Simultaneously, the rotation of the rotating frame drives the shovel plate to rotate above the filter plate, pushing the fertilizer and accelerating its fall, preventing blockage and ensuring normal material feeding. The rotating rod also drives the mixing plate to rotate inside the mixing drum, ensuring thorough mixing of the fertilizer and preventing uneven mixing from affecting sweet potato growth. When rotating, the scraper moves inside the mixing drum, scraping and cleaning the inner wall of the drum to prevent waste from accumulating and causing blockages. This also prevents fertilizer from deteriorating due to prolonged accumulation, which could negatively impact the sweet potatoes. The rotating rod also drives the annular scraper to rotate inside the mixing drum, accelerating the flow of fertilizer into the discharge port. Simultaneously, the valve intelligently controls the amount of fertilizer dispensed based on the size of the sweet potato seedlings using sensors, preventing over- or under-fertilization from harming the sweet potatoes. Furthermore, a weighing sensor detects the remaining fertilizer inside the mixing drum. When the fertilizer level is too low, an alarm is triggered to remind the user to add more fertilizer.

[0019] When the second motor of this invention is turned on, its output end drives the second rotating rod to rotate. The rotation of the second rotating rod, in turn, drives the threaded rod to rotate. The rotation of the threaded rod, through the moving plate, drives the lifting slide rod to move inside the moving groove. This causes the lifting slide rod to drive the shovel plate to dig holes in the soil, ensuring fertilizer falls to the appropriate location. The telescopic rod makes the movement of the lifting slide rod more stable. Simultaneously, the sensor on the surface of the shovel plate intelligently controls the unidirectional electric actuator based on the size of the sweet potato seedlings. When the unidirectional electric actuator is turned on, its output end drives the shovel plate up and down via the bidirectional telescopic rod, allowing the machine to effectively control the digging depth. When the rotating rod rotates, it drives the anti-blocking plate to rotate inside the discharge port, pushing the fertilizer inside the discharge port to prevent blockage during fertilization and ensure normal machine operation. Simultaneously, when the unidirectional electric actuator is turned on, its output end drives the hose to move on the surface of the ring through the force plate, ensuring fertilizer inside the discharge port falls precisely to the appropriate depth, preventing fertilizer from falling outside the hole due to excessive distance and causing waste. The elastic rod limits the movement of the hose.

[0020] When the second rotating rod of this invention rotates, it drives the first pulley to rotate as well. When the first pulley rotates, it drives the second pulley to rotate on the surface of the rotating support rod via the transmission belt. When the second pulley rotates, it drives the second threaded rod to rotate as well. When the second threaded rod rotates, it drives the second lifting slide rod to move inside the slide groove via the sliding ring plate. The retractable rod makes the position of the second lifting slide rod more stable when it moves. At the same time, when the force plate moves, it squeezes the soft plate through the thin rod, thereby driving the lifting slide rail to move together via the long plate. When the lifting slide rail moves, it drives the cover plate to move up and down via the lifting sleeve. When the bottom of the cover plate contacts the ground, the force plate will continue to move downward by squeezing the soft plate. The soft plate will prevent the force plate from moving the hose downward due to jamming. At the same time, after the machine fertilizes the sweet potatoes, the second lifting slide rod drives the cover plate to move closer to each other inside the lifting slide rail, so that the cover plate pushes the excavated soil to cover the pit, preventing the fertilizer from volatilizing due to excessive contact with the air, which would affect the fertilization effect. The fixed telescopic rod makes the movement of the lifting slide rail more stable and prevents the cover plate from tilting due to positional deviation.

[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the mixing device structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the soil-shoveling device of the present invention;

[0027] Figure 5 This is another structural schematic diagram of the soil-shoveling device of the present invention;

[0028] Figure 6 This is a schematic diagram of the covering device structure of the present invention;

[0029] Figure 7 For the present invention Figure 7 Enlarged structural diagram of section A in the middle;

[0030] Figure 8This is another structural schematic diagram of the covering device of the present invention;

[0031] Figure 9 This is a schematic diagram of the retractable tie rod structure of the present invention.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] In the diagram: 1. Movable base; 2. Casters; 3. Bracket; 4. Support frame; 5. Mixing device; 6. Soil-scraping device; 7. Covering device; 8. Handrail; 20. Support spring plate; 21. Mixing cylinder; 22. Discharge hopper; 23. Support frame; 24. Motor; 25. Rotating rod; 26. Rotating frame; 27. Filter plate; 28. Roller; 29. ​​Shovel plate; 30. Scraper; 31. Mixing plate; 32. Annular scraper; 33. Discharge port; 34. Valve; 35. Weighing sensor; 40. Second motor; 41. Anti-clogging plate; 42. Second rotating rod; 43. Threaded rod; 44. Movable 45. Plate; 46. Lifting slide bar; 47. Soil-scraping plate; 48. Two-way telescopic rod; 49. One-way electric actuator; 50. Ring sleeve; 51. Flexible hose; 52. Force-applying plate; 53. Elastic rod; 54. Moving groove; 60. Telescopic rod; 61. Rotating support rod; 62. First pulley; 63. Belt; 64. Second pulley; 65. Second threaded rod; 66. Sliding ring plate; 67. Slide groove; 68. Fixed telescopic rod; 69. Lifting slide rail; 70. Lifting sleeve; 71. Cover plate; 72. Retractable rod; 73. Second lifting slide bar; 74. Long plate; 75. Flexible plate; 76. Thin rod. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1 - Figure 9 As shown, the present invention is a fertilization device for sweet potato planting, including a movable base 1, a caster wheel 2 fixedly connected to the bottom of the movable base 1, a support 3 fixedly connected to the bottom of the movable base 1, a handrail 8 fixedly connected to the top of the movable base 1, a support frame 4 fixedly connected to the bottom of the movable base 1, a mixing device 5 arranged above the movable base 1, a soil-scraping device 6 arranged below the movable base 1, and a covering device 7 arranged below the movable base 1.

[0036] The mixing device 5 includes a support plate 20, the bottom of which is fixedly connected to the top of the movable base 1. A mixing cylinder 21 is fixedly connected to the top of the support plate 20, a hopper 22 is fixedly connected to the top of the mixing cylinder 21, and a support frame 23 is fixedly connected to the top of the mixing cylinder 21. A motor 24 is fixedly connected to the inner wall of the support frame 23. When the motor 24 is turned on, its output end drives the rotating rod 25 to rotate. The output end of the motor 24 is fixedly connected to the rotating rod 25, and the rotation of the rotating rod 25 is achieved by rotating... The frame 26 drives the roller 28 to rotate above the filter plate 27. The rotating frame 26 is fixedly connected to the surface of the rotating rod 25. When the rotating frame 26 rotates, it will drive the shovel 29 to rotate above the filter plate 27, so that the shovel 29 pushes the fertilizer above the filter plate 27. The filter plate 27 is fixedly connected to the inner wall of the mixing cylinder 21. The roller 28 is rotatably connected to the inner wall of the filter plate 27. The roller 28 will crush the fertilizer above the filter plate 27. The shovel 29 is fixedly connected to the inner wall of the rotating frame 26.

[0037] A scraper 30 is fixedly connected to the surface of the rotating rod 25, a stirring plate 31 is fixedly connected to the surface of the rotating rod 25, an annular scraper 32 is fixedly connected to the surface of the rotating rod 25, a discharge port 33 is fixedly connected to the bottom of the mixing cylinder 21, a valve 34 is provided on the surface of the discharge port 33, and a weighing sensor 35 is provided on the bottom of the support spring plate 20.

[0038] The hopper 22 passes through the mixing cylinder 21 and extends into the interior of the mixing cylinder 21. The rotating rod 25 passes through the mixing cylinder 21 and extends into the interior of the discharge port 33. The roller 28 is located above the filter plate 27. The bottom of the shovel 29 contacts the top of the filter plate 27.

[0039] The surface of scraper 30 is in contact with the inner wall of mixing cylinder 21, stirring plate 31 is located below filter plate 27, scraper 30 is located above stirring plate 31, the bottom of annular scraper 32 is in contact with the bottom of inner wall of mixing cylinder 21, and discharge port 33 passes through movable base 1 and extends to the outer end of valve 34.

[0040] The soil-digging device 6 includes a second motor 40. When the second motor 40 is turned on, its output end drives the second rotating rod 42 to rotate. The surface of the second motor 40 is fixedly connected to the inner wall of the bracket 3. An anti-blocking plate 41 is fixedly connected to the surface of the rotating rod 25. The output end of the second motor 40 is fixedly connected to the second rotating rod 42. When the second rotating rod 42 rotates, it drives the threaded rod 43 to rotate together. The end of the second rotating rod 42 away from the second motor 40 is fixedly connected to the threaded rod 43. When the threaded rod 43 rotates, it drives the lifting slide rod 45 to move inside the moving groove 53 through the moving plate 44. This causes the lifting slide rod 45 to drive the soil-digging plate 46 to dig holes on the ground. The surface of the threaded rod 43 is threadedly connected to the moving plate 44. The inner wall of the moving plate 44 away from the threaded rod 43 is fixedly connected to the lifting slide rod 45. The end of the lifting slide rod 45 is fixedly connected to the soil-digging plate 46. A bidirectional telescopic rod 47 is fixedly connected to the surface of the plate 46 and the lifting slide rod 45. A unidirectional electric actuator 48 is fixedly connected to the inner wall of the support frame 4. When the unidirectional electric actuator 48 is opened, the output end will drive the soil-scraping plate 46 to move up and down through the bidirectional telescopic rod 47. A ring 49 is fixedly connected to the end of the discharge port 33. A hose 50 is fixedly connected to the end of the ring 49. A force plate 51 is fixedly connected to the surface of the hose 50. The force plate 51 drives the hose 50 to move on the surface of the ring 49, so that the fertilizer inside the discharge port 33 can fall accurately to the appropriate depth. An elastic rod 52 is fixedly connected to the surface of the force plate 51. The elastic rod 52 limits the hose 50. A moving groove 53 is opened on the inner wall of the moving base 1. A telescopic rod 54 is fixedly connected to the inner wall of the moving groove 53. The telescopic rod 54 makes the lifting slide rod 45 more stable when it moves.

[0041] The surface of the anti-blocking plate 41 is adapted to the inner wall of the discharge port 33. The threaded rod 43 passes through the moving plate 44 and extends to the outer end of the moving plate 44. The end of the lifting slide rod 45 away from the soil-scraping plate 46 is slidably connected to the inner wall of the moving groove 53. The end of the bidirectional telescopic rod 47 away from the lifting slide rod 45 is fixedly connected to the output end of the unidirectional electric push rod 48. A sensor is provided on the surface of the soil-scraping plate 46.

[0042] The output end of the unidirectional electric actuator 48 is fixedly connected to the top of the force plate 51. The hose 50 observes the force plate 51 and extends to the outer end of the force plate 51. The end of the elastic rod 52 away from the force plate 51 is fixedly connected to the bottom of the movable base 1. The end of the telescopic rod 54 away from the movable groove 53 is fixedly connected to the surface of the lifting slide rod 45.

[0043] The covering device 7 includes a rotating support rod 60, the end of which is fixedly connected to the bottom of the movable base 1. A first pulley 61 is fixedly connected to the surface of the second rotating rod 42. When the first pulley 61 rotates, it drives the second pulley 63 to rotate on the surface of the rotating support rod 60 via a transmission belt 62. The inner wall of the first pulley 61 is connected to the belt 62. The end of the rotating support rod 60 away from the movable base 1 is rotatably connected to the second pulley 63. When the second pulley 63 rotates, it drives the second threaded rod 64 to rotate together. The surface of the second pulley 63 is fixedly connected to the second threaded rod 64. When the second threaded rod 64 rotates, it drives the second lifting slide rod 72 to move inside the slide groove 66 via a sliding ring plate 65. The surface of the second threaded rod 64 is threadedly connected to the sliding ring plate 65. The inner wall of the movable base 1 has a slide groove 66. A fixed telescopic rod 67 is fixedly connected to the bottom of the movable base 1. The fixed telescopic rod 67 makes the lifting slide rail 68 more stable when it moves, preventing the covering plate 70 from tilting due to positional displacement. A lifting slide rail 68 is fixedly connected to the end of the telescopic rod 67 away from the movable base 1. When the lifting slide rail 68 moves, it drives the cover plate 70 to move up and down through the lifting sleeve 69. The lifting sleeve 69 is slidably connected to the surface of the lifting slide rail 68, and the cover plate 70 is fixedly connected to the bottom of the lifting sleeve 69. A retractable rod 71 is fixedly connected to the inner wall of the slide groove 66. The retractable rod 71 makes the position of the second lifting slide rod 72 more stable when it moves. The end of the retractable rod 71 away from the slide groove 66 is fixedly connected to the second lifting slide rod 72. The two lifting slide bars 72 drive the cover plates 70 to move closer together inside the lifting slide rail 68, so that the cover plates 70 push the excavated soil to cover the pit. A long plate 73 is fixedly connected to the surface of the lifting slide rail 68, and a flexible plate 74 is fixedly connected to the top of the long plate 73. The flexible plate 74 will prevent the force plate 51 from moving the hose 50 downward due to jamming. A thin rod 75 is fixedly connected to the end of the flexible plate 74 away from the long plate 73. The thin rod 75 squeezes the flexible plate 74, thereby driving the lifting slide rail 68 to move together through the long plate 73.

[0044] The inner wall of the belt 62 away from the first pulley 61 is connected to the inner wall of the second pulley 63 for transmission. The second threaded rod 64 passes through the sliding ring plate 65 and extends to the outer end of the sliding ring plate 65. The surface of the second lifting slide rod 72 is slidably connected to the inner wall of the slide groove 66. The end of the second lifting slide rod 72 away from the slide groove 66 is fixedly connected to the top of the cover plate 70.

[0045] The end of the second lifting slide rod 72 away from the slide groove 66 is slidably connected to the inner wall of the lifting slide rail 68. The second lifting slide rod 72 passes through the lifting slide sleeve 69 and extends to the top of the cover plate 70. The end of the thin rod 75 away from the soft plate 74 is fixedly connected to the top of the force plate 51.

[0046] During operation, when motor 24 is turned on, its output end drives the rotating rod 25 to rotate. When fertilizer enters the area above filter plate 27 through hopper 22, the rotating rod 25 rotates, driving roller 28 to rotate above filter plate 27 via rotating frame 26. Roller 28 crushes the fertilizer above filter plate 27, preventing large pieces of fertilizer from causing over-fertilization and losses to sweet potatoes. Simultaneously, the rotating frame 26 rotates, driving shovel 29 to rotate above filter plate 27, pushing the fertilizer and accelerating its fall, preventing blockage of filter plate 27 and ensuring normal material feeding. The rotation of the rotating rod 25 also drives the mixing plate 31 to rotate inside mixing drum 21, ensuring thorough mixing of the fertilizer inside and preventing... Uneven fertilizer mixing affects sweet potato growth. Simultaneously, the rotation of the rotating rod 25 drives the scraper 30 to rotate inside the mixing drum 21, cleaning the inner wall of the drum 21 and preventing long-term accumulation of waste that could cause blockages. This also prevents fertilizer deterioration due to prolonged accumulation, which could negatively impact the sweet potatoes. The rotation of the rotating rod 25 also drives the annular scraper 32 to rotate inside the mixing drum 21, accelerating the flow of fertilizer into the discharge port 33. Meanwhile, the valve 34 intelligently controls the amount of fertilizer dispensed based on the size of the sweet potato seedlings, using sensors to prevent over- or under-fertilization. Furthermore, the weighing sensor 35 senses the remaining fertilizer weight inside the mixing drum 21; if the fertilizer level is too low, an intelligent system will activate... The sensor activates an alarm to remind the user to add fertilizer. When the second motor 40 is turned on, its output drives the second rotating rod 42 to rotate. The rotation of the second rotating rod 42 drives the threaded rod 43 to rotate as well. The rotation of the threaded rod 43, via the moving plate 44, drives the lifting slide rod 45 to move within the moving groove 53. This causes the lifting slide rod 45 to move the soil-digging plate 46 to dig holes in the ground, allowing fertilizer to fall into the appropriate location. The telescopic rod 54 makes the movement of the lifting slide rod 45 more stable. Simultaneously, sensors on the surface of the soil-digging plate 46 intelligently control the unidirectional electric actuator 48 based on the size of the sweet potato seedlings. When the unidirectional electric actuator 48 is activated, its output drives the soil-digging plate 46 up and down via the bidirectional telescopic rod 47, enabling effective machine control. When the rotating rod 25 rotates, it drives the anti-blocking plate 41 to rotate inside the discharge port 33, causing the anti-blocking plate 41 to push the fertilizer inside the discharge port 33, preventing the machine from being blocked during fertilization. At the same time, when the one-way electric push rod 48 is opened, the output end drives the hose 50 to move on the surface of the ring 49 through the force plate 51, so that the fertilizer inside the discharge port 33 can fall accurately to the appropriate depth, preventing fertilizer from falling outside the hole due to excessive distance and causing waste. The elastic rod 52 limits the hose 50. When the second rotating rod 42 rotates, it drives the first pulley 61 to rotate together. When the first pulley 61 rotates, it drives the second pulley 63 to rotate on the surface of the rotating support rod 60 through the transmission belt 62.When the second pulley 63 rotates, it drives the second threaded rod 64 to rotate as well. When the second threaded rod 64 rotates, it drives the second lifting slide rod 72 to move inside the slide groove 66 through the sliding ring plate 65. The retracting rod 71 makes the position of the second lifting slide rod 72 more stable when it moves. At the same time, when the force plate 51 moves, it will squeeze the soft plate 74 through the thin rod 75, thereby driving the lifting slide rail 68 to move together through the long plate 73. When the lifting slide rail 68 moves, it will drive the cover plate 70 to move up and down through the lifting sleeve 69. When the bottom of the cover plate 70 is in contact with the ground... Upon contact, the force plate 51 continues to move downwards by squeezing the flexible plate 74. The flexible plate 74 prevents the force plate 51 from affecting the downward movement of the hose 50 due to jamming. Simultaneously, after the machine fertilizes the sweet potatoes, the second lifting slide bar 72 moves the cover plate 70 closer together inside the lifting slide rail 68, causing the cover plate 70 to push the excavated soil to cover the pit, preventing excessive contact between fertilizer and air, which could lead to evaporation and affect the fertilization effect. The fixed telescopic rod 67 makes the movement of the lifting slide rail 68 more stable, preventing positional shifts that could cause the cover plate 70 to tilt.

[0047] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fertilization device for sweet potato cultivation, comprising a movable base (1), characterized in that: The bottom of the mobile base (1) is fixedly connected to a caster wheel (2), the bottom of the mobile base (1) is fixedly connected to a bracket (3), the top of the mobile base (1) is fixedly connected to a handrail (8), the bottom of the mobile base (1) is fixedly connected to a support frame (4), a mixing device (5) is provided above the mobile base (1), a soil-scraping device (6) is provided below the mobile base (1), and a covering device (7) is provided below the mobile base (1). The mixing device (5) includes a support spring plate (20), the bottom of which is fixedly connected to the top of the movable base (1), a mixing cylinder (21) is fixedly connected to the top of the support spring plate (20), a hopper (22) is fixedly connected to the top of the mixing cylinder (21), a support frame (23) is fixedly connected to the top of the mixing cylinder (21), a motor (24) is fixedly connected to the inner wall of the support frame (23), a rotating rod (25) is fixedly connected to the output end of the motor (24), a rotating frame (26) is fixedly connected to the surface of the rotating rod (25), a filter plate (27) is fixedly connected to the inner wall of the mixing cylinder (21), a roller (28) is rotatably connected to the inner wall of the filter plate (27), and a shovel plate (29) is fixedly connected to the inner wall of the rotating frame (26).

2. The fertilization device for sweet potato planting according to claim 1, characterized in that: A scraper (30) is fixedly connected to the surface of the rotating rod (25), a stirring plate (31) is fixedly connected to the surface of the rotating rod (25), an annular scraper (32) is fixedly connected to the surface of the rotating rod (25), a discharge port (33) is fixedly connected to the bottom of the mixing cylinder (21), a valve (34) is provided on the surface of the discharge port (33), and a weighing sensor (35) is provided at the bottom of the support spring plate (20).

3. The fertilization device for sweet potato planting according to claim 2, characterized in that: The hopper (22) passes through the mixing cylinder (21) and extends into the interior of the mixing cylinder (21). The rotating rod (25) passes through the mixing cylinder (21) and extends into the interior of the discharge port (33). The roller (28) is located above the filter plate (27). The bottom of the shovel plate (29) contacts the top of the filter plate (27).

4. The fertilization device for sweet potato planting according to claim 3, characterized in that: The surface of the scraper (30) is in contact with the inner wall of the mixing cylinder (21), the stirring plate (31) is located below the filter plate (27), the scraper (30) is located above the stirring plate (31), the bottom of the annular scraper (32) is in contact with the bottom of the inner wall of the mixing cylinder (21), and the discharge port (33) passes through the movable base (1) and extends to the outer end of the valve (34).

5. A fertilization device for sweet potato planting according to claim 4, characterized in that: The soil-digging device (6) includes a second motor (40), the surface of which is fixedly connected to the inner wall of the bracket (3). An anti-blocking plate (41) is fixedly connected to the surface of the rotating rod (25). A second rotating rod (42) is fixedly connected to the output end of the second motor (40). A threaded rod (43) is fixedly connected to the end of the second rotating rod (42) away from the second motor (40). A moving plate (44) is threadedly connected to the surface of the threaded rod (43). A lifting slide rod (45) is fixedly connected to the inner wall of the moving plate (44) away from the threaded rod (43). The end of the lifting slide rod (45) is fixedly connected to the inner wall of the moving plate (44) away from the threaded rod (43). A soil-scraping plate (46) is fixedly connected to the surface of the lifting slide bar (45), a two-way telescopic rod (47) is fixedly connected to the surface of the support frame (4), a one-way electric actuator (48) is fixedly connected to the inner wall of the support frame (4), a ring sleeve (49) is fixedly connected to the end of the discharge port (33), a hose (50) is fixedly connected to the end of the ring sleeve (49), a force-applying plate (51) is fixedly connected to the surface of the hose (50), an elastic rod (52) is fixedly connected to the surface of the force-applying plate (51), a moving groove (53) is opened on the inner wall of the moving base (1), and a telescopic rod (54) is fixedly connected to the inner wall of the moving groove (53).

6. The fertilization device for sweet potato planting according to claim 5, characterized in that: The surface of the anti-blocking plate (41) is adapted to the inner wall of the discharge port (33). The threaded rod (43) passes through the moving plate (44) and extends to the outer end of the moving plate (44). The end of the lifting slide rod (45) away from the soil-scraping plate (46) is slidably connected to the inner wall of the moving groove (53). The end of the bidirectional telescopic rod (47) away from the lifting slide rod (45) is fixedly connected to the output end of the unidirectional electric push rod (48). The surface of the soil-scraping plate (46) is provided with a sensor.

7. A fertilization device for sweet potato planting according to claim 6, characterized in that: The output end of the unidirectional electric actuator (48) is fixedly connected to the top of the force plate (51), the hose (50) observes the force plate (51) and extends to the outer end of the force plate (51), the end of the elastic rod (52) away from the force plate (51) is fixedly connected to the bottom of the movable base (1), and the end of the telescopic rod (54) away from the movable groove (53) is fixedly connected to the surface of the lifting slide rod (45).

8. A fertilization device for sweet potato planting according to claim 7, characterized in that: The covering device (7) includes a rotating support rod (60), the end of which is fixedly connected to the bottom of the movable base (1). A first pulley (61) is fixedly connected to the surface of the second rotating rod (42), and a belt (62) is drivenly connected to the inner wall of the first pulley (61). A second pulley (63) is rotatably connected to the end of the rotating support rod (60) away from the movable base (1). A second threaded rod (64) is fixedly connected to the surface of the second pulley (63), and a sliding ring plate (65) is threadedly connected to the surface of the second threaded rod (64). A sliding groove (66) is provided on the inner wall of the movable base (1), and a fixed... A fixed telescopic rod (67) is fixedly connected to a lifting slide rail (68) at the end of the fixed telescopic rod (67) away from the movable base (1). A lifting slide sleeve (69) is slidably connected to the surface of the lifting slide rail (68). A cover plate (70) is fixedly connected to the bottom of the lifting slide sleeve (69). A retractable rod (71) is fixedly connected to the inner wall of the slide groove (66). A second lifting slide rod (72) is fixedly connected to the end of the retractable rod (71) away from the slide groove (66). A long plate (73) is fixedly connected to the surface of the lifting slide rail (68). A flexible plate (74) is fixedly connected to the top of the long plate (73). A thin rod (75) is fixedly connected to the end of the flexible plate (74) away from the long plate (73).

9. A fertilization device for sweet potato planting according to claim 8, characterized in that: The belt (62) is connected to the inner wall of the second belt pulley (63) away from the inner wall of the first pulley (61). The second threaded rod (64) passes through the sliding ring plate (65) and extends to the outer end of the sliding ring plate (65). The surface of the second lifting slide rod (72) is slidably connected to the inner wall of the slide groove (66). The end of the second lifting slide rod (72) away from the slide groove (66) is fixedly connected to the top of the cover plate (70).

10. A fertilization device for sweet potato planting according to claim 9, characterized in that: The end of the second lifting slide rod (72) away from the slide groove (66) is slidably connected to the inner wall of the lifting slide rail (68). The second lifting slide rod (72) passes through the lifting slide sleeve (69) and extends to the top of the cover plate (70). The end of the thin rod (75) away from the soft plate (74) is fixedly connected to the top of the force plate (51).

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