Fertilizing device capable of adjusting fertilizing amount in tobacco field

Abstract

The invention discloses a tobacco field fertilizing amount adjusting fertilizing device which comprises a moving frame, a first mounting plate, a second mounting plate and a third mounting plate are fixedly mounted on one side face of the moving frame from top to bottom, and a fertilizer tank communicated with a discharging opening in the third mounting plate through a discharging pipe is arranged on the first mounting plate. A second rotating piece and a first rotating piece which are sequentially driven through a driving piece arranged on the moving frame are connected to the lower portion of the second mounting plate, the first rotating piece is provided with a first through opening and a second through opening which are eccentric and symmetrical, a temporary storage piece communicated with the discharging opening is arranged in the first through opening, and the volume of the temporary storage piece is changed through an adjusting piece arranged below the first rotating piece. The adjusting part is provided with a third through opening which is in butt joint with the second through opening and the first through opening in the initial or working process, a baffle part which seals the discharging opening in the working process is arranged below the third mounting plate, the second rotating part is provided with a hole forming part and a discharging part which are in butt joint with the third through opening in the initial or working process, and the first mounting plate is provided with a downward pressing part for driving the hole forming part. The device can flexibly adjust the fertilizing amount according to the fertilizer requirement condition of the tobacco field.

Description

Technical Field

[0001] This invention belongs to the field of tobacco field fertilization technology, and in particular relates to a fertilization device for adjusting the amount of fertilizer applied to tobacco fields. Background Technology

[0002] The tobacco field topdressing depth adjustment fertilization device is an agricultural machine applied to tobacco fields. Its core function is to adjust the fertilization depth through automated control, and can dynamically adjust the fertilization amount according to the height of the tobacco field ridges and the operation speed to improve fertilization efficiency and accuracy.

[0003] Patent CN204652945U discloses a tobacco field soil fertilizer, including a handle, a connecting rod, and a fertilizer storage cylinder. The connecting rod is fixed to the handle and its lower end is welded to the fertilizer storage cylinder. A fixed plow is located below the fertilizer storage cylinder, and a movable plow is located on the other side. The fixed plow is welded to the lower end of the fertilizer storage cylinder, and the movable plow is movably connected to the fertilizer storage cylinder. The movable plow can be lifted upwards around a movable latch. A gripper is located below the handle and is connected to the handle. The gripper is connected to the movable plow connecting rod, and the movable plow is connected to the movable plow. This design can quickly complete the fertilization of tobacco field soil without damaging the original soil structure, thereby reducing the impact of fertilization operations on the tobacco plant roots and subsequent growth. While the proposed method minimizes damage from continuous growth and maintains the soil microenvironment at the bottom of the tobacco ridges, it allows for single-person operation, improves fertilization efficiency, and saves time and labor. However, the following shortcomings still exist in its application: the fertilization device cannot flexibly adjust the amount of fertilizer used. In tobacco fields with uneven soil fertility, a fixed fertilization pattern can lead to fertilizer waste in high-fertility areas due to over-fertilization, increasing production costs. Furthermore, residual fertilizer may pollute groundwater through rainwater runoff or cause eutrophication. In low-fertility areas, insufficient fertilizer cannot meet the growth needs of tobacco plants, resulting in yellowing leaves, stunted development, and ultimately affecting tobacco yield and quality, causing economic losses.

[0004] Therefore, it is necessary to design a fertilizer application device for tobacco fields to adjust the amount of fertilizer applied to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a fertilizer application device for tobacco fields that can dynamically adjust the amount of fertilizer applied based on the soil fertility and the growth cycle of the tobacco plants. This avoids waste and environmental pollution caused by excessive fertilization, while also preventing stunted growth caused by nutrient deficiency.

[0006] The technical solution provided by this invention is as follows:

[0007] This invention provides a fertilizer application device for tobacco fields, comprising a movable frame with mounting plates 1, 2, and 3 fixedly mounted on one side from top to bottom. Mounting plate 1 has a fertilizer tank connected to a discharge port on mounting plate 3 via a discharge pipe. Below mounting plate 2 are rotating components 2 and 1, driven sequentially by a driving component on the movable frame. Rotating component 1 has eccentrically symmetrical openings 1 and 2. Opening 1 has a temporary storage component connected to the discharge port, and the volume of the temporary storage component is changed by an adjusting component located below rotating component 1. The adjusting component has an opening 3 that connects to openings 2 and 1 respectively during initial operation or operation. Below mounting plate 3 is a baffle that closes the discharge port during operation. Rotating component 2 has a hole-forming component and a discharge component that connect to opening 3 respectively during initial operation or operation. Mounting plate 1 has a pressing component that drives the hole-forming component.

[0008] Furthermore, the first rotating component includes a first rotating plate, the top surface of which is fixed with a first rotating shaft, which is rotatably mounted on the bottom surface of the second mounting plate, and a first gear is fixedly sleeved on the first rotating shaft. The first rotating plate is eccentrically and symmetrically provided with a first through-hole and a second through-hole. The second rotating component includes a second rotating plate, the top surface of which is fixed with a second rotating shaft, which is rotatably mounted on the bottom surface of the second mounting plate, and a second gear is fixedly sleeved on the second rotating shaft. The second rotating plate is provided with an eccentrically and symmetrically provided through-hole and through-hole, and a hole-forming component and a material discharge component are slidably provided in through-hole and through-hole, respectively. The first rotating plate is placed above the second rotating plate and partially overlaps with the second rotating plate in the vertical direction. The partial overlap of the first rotating plate and the second rotating plate is the junction between the through-holes or the joint between the through-hole and the through-hole.

[0009] Furthermore, the adjusting component includes a height adjuster, which is fixedly mounted on the side of the movable frame below the mounting plate three. The height adjuster is provided with a lifting seat that slides up and down. A connecting plate is fixed to the side of the lifting seat. A lifting plate is fixed to the end of the connecting plate away from the lifting seat. The lifting plate is located below the first rotating plate and completely overlaps with the first rotating plate in the vertical direction. A through-hole three is opened on the lifting plate. A fixing plate is fixedly attached to the outer peripheral surface of the lifting plate. The bottom surface of the fixing plate is flush with the bottom surface of the lifting plate. The top of the discharge component initially abuts against the bottom surface of the fixing plate.

[0010] Furthermore, the temporary storage component includes an outer cylinder slidably disposed in the opening, an inner cylinder slidably connected inside the outer cylinder with the top end of the inner cylinder extending out of the outer cylinder, and an annular plate with a diameter larger than the opening being fitted at the top end of the inner cylinder. A second spring is connected between the annular plate and the outer cylinder. When the lifting plate moves upward, it drives the outer cylinder to move upward, compressing the second spring and sliding upward relative to the inner cylinder, thereby reducing the volume of the temporary storage component. When the lifting plate moves downward, it drives the outer cylinder to move downward, sliding downward relative to the inner cylinder under the reset action of the second spring, thereby increasing the volume of the temporary storage component.

[0011] Furthermore, the baffle includes a sliding rod fixed to the side of the movable frame below the mounting plate three, a sliding block slidably sleeved on the sliding rod, a return spring connected between the sliding block and the movable frame, a baffle fixed to the top of the sliding block, the top surface of the baffle being in contact with the bottom surface of the mounting plate three, and the baffle moving synchronously to close the discharge port during the process of the passage one being connected to the passage three.

[0012] Furthermore, the hole-forming component includes a grounding rod with a tapered end at the bottom and slidably disposed within the first through-hole. A second spring is connected between the top of the grounding rod and the top surface of the second rotating plate. A limiting plate that can adjust the distance between the grounding rod and the tapered end is provided below the grounding rod. The material discharge component includes a material discharge cylinder slidably disposed within the second through-hole. A movable cylinder is slidably disposed within the material discharge cylinder. The bottom surface of the movable cylinder is connected to a third spring disposed within the material discharge cylinder.

[0013] Furthermore, the pressing member includes a pressure rod, which passes through mounting plate one and mounting plate two in sequence and is slidably connected to mounting plate one and mounting plate two. The pressure rod includes a first end and a second end, the diameter of the second end is larger than that of the second end, and the first end and part of the second end are positioned above mounting plate one. A first spring is connected between the transition between the first end and the second end and the top surface of mounting plate one.

[0014] Furthermore, the movable frame includes two symmetrically arranged vertical plates. The upper and lower ends of the middle part of the two vertical plates are respectively provided with support plate one and support plate two. A vertical plate is provided near the middle position between support plate one and support plate two. A movable wheel fixed between the two vertical plates is provided below support plate two. An operating lever is provided at the top of the two vertical plates.

[0015] Furthermore, the driving component includes a guide rod and a rotating rod. The guide rod is fixed to the side of the movable frame between the second mounting plate and the third mounting plate. A slider is slidably sleeved on the guide rod. A first rack is fixed to the side of the slider. The first rack is positioned opposite the first gear and the second gear. The rotating rod is rotatably mounted on a vertical plate. A winding wheel is fixedly sleeved on one end of the rotating rod. A pull wire is wound on the winding wheel and connected to the slider. A third gear is fixedly sleeved on the other end of the rotating rod. A second rack is provided on one side of the third gear. The second rack meshes with the third gear. A vertical rod is fixed on the second rack. The vertical rod passes through the first support plate and is slidably connected to the first support plate. A fourth spring is connected to the top surface of the first support plate of the vertical rod positioned above the first support plate.

[0016] Furthermore, the second mounting plate is a bent plate comprising a first plate, a second plate, and a third plate connected in sequence. The first plate is perpendicularly connected to the vertical plate, and the first plate and the third plate are arranged in parallel and perpendicularly connected to the front and rear sides of the second plate, respectively. The first rotating shaft and the second rotating shaft are respectively rotatably mounted on the bottom surface of the third plate.

[0017] Beneficial effects

[0018] The mobile frame of this invention features three layered mounting plates (one, two, and three), combined with a fertilizer tank, an adjustable-volume temporary storage unit, and linked rotating parts two and one. This allows for dynamic adjustment of fertilizer application based on soil fertility and the tobacco plant growth cycle, avoiding waste and environmental pollution caused by excessive fertilization, while also preventing stunted growth due to nutrient deficiency. The drive unit drives rotating parts two and one to work sequentially, and in conjunction with the adjusting and baffle components, ensures seamless connection between fertilizer storage, quantitative application, and discharge after the drilling and pressing parts have completed their soil hole-opening operations. This improves fertilizer uniformity and optimizes the agronomic process.

[0019] This invention uses a height adjuster to drive a lifting plate to move up and down, changing the relative position of the outer and inner cylinders, thereby adjusting the volume of the fertilizer storage space formed by the two. When the lifting plate moves downward, the space increases, and the amount of fertilizer applied at one time increases; when it moves upward, the space decreases, and the amount of fertilizer applied decreases. The amount of fertilizer can be dynamically adjusted according to the soil fertility of the tobacco field and the growth cycle of the tobacco plants, avoiding waste and environmental pollution caused by excessive fertilization, while also preventing growth retardation caused by nutrient deficiency.

[0020] The bottom of the planting pole of this invention adopts a conical structure, combined with a movable limiting plate. By adjusting the distance between the limiting plate and the conical end, the depth of the hole formed by the planting pole in the soil can be precisely controlled. This design allows the device to adapt to the needs of soils with different fertility, avoiding the problems of easy volatilization when applying fertilizer in shallow soil or insufficient root absorption when applying fertilizer in deep soil. Workers can quickly adjust the position of the limiting plate according to the growth stage of the tobacco plants or the soil hardness without replacing any parts. It is easy to operate and has a wide range of applications.

[0021] During the rotation of the outer cylinder, the bottom surface of the outer cylinder always adheres to the lifting plate to prevent fertilizer from spilling prematurely; when the outer cylinder separates from the discharge port, the baffle automatically closes the discharge port to prevent fertilizer from continuously falling from the discharge pipe.

[0022] The movable cylinder of this invention is always pressed against the fixed plate under the action of the fourth spring. When the lifting plate moves, the movable cylinder extends and retracts to ensure that the fertilizer discharge channel is unobstructed and to avoid component jamming. The bottom surface of the lifting plate is flush with the bottom surface of the fixed plate, so that the movable cylinder can smoothly transition during rotation, reduce mechanical wear, and improve the durability of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a fertilizer application device for tobacco fields according to the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of a fertilizer application device for tobacco fields according to the present invention. Figure 2 ;

[0025] Figure 3 for Figure 2 Enlarged view of the structure at point A;

[0026] Figure 4 This is a cross-sectional structural schematic diagram of a fertilizer application device for tobacco fields according to the present invention;

[0027] Figure 5 for Figure 4 Enlarged view of the structure at point B;

[0028] Figure 6 This is a schematic diagram of the structure of rotating member one and rotating member two of the present invention. Figure 1 ;

[0029] Figure 7 This is a schematic diagram of the structure of rotating member one and rotating member two of the present invention. Figure 2 ;

[0030] Figure 8 This is a schematic diagram of the structure of the discharge cylinder of the present invention when it faces the outer cylinder.

[0031] In the diagram: 1. Movable frame; 11. Movable wheels; 12. Mounting plate one; 121. Pressure rod; 122. First spring; 13. Mounting plate two; 14. Mounting plate three; 141. Discharge port; 142. Baffle; 2. Fertilizer tank; 21. Discharge pipe; 31. First rotating plate; 311. Through port one; 312. Through port two; 32. First rotating shaft; 321. First gear; 41. Outer cylinder; 42. Inner cylinder; 43. Second spring; 51. Height adjuster; 52. Lifting seat; 5 21. Connecting plate; 53. Lifting plate; 531. Through port three; 54. Fixing plate; 61. Second rotating plate; 62. Second rotating shaft; 621. Second gear; 63. Ground insertion rod; 631. Limiting plate; 64. Discharge cylinder; 65. Movable cylinder; 66. Third spring; 71. Guide rod; 72. Slider; 73. First rack; 74. Rotating rod; 75. Winding wheel; 76. Pull line; 77. Third gear; 78. Second rack; 79. Vertical rod; 710. Fourth spring. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0033] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] Example 1

[0036] like Figure 1 and Figure 2 As shown, this embodiment of the invention provides a fertilizer application device for tobacco fields, including a movable frame 1 with a mounting plate 12, a mounting plate 13, and a mounting plate 14 fixedly mounted on one side from top to bottom. The mounting plate 12 has a fertilizer tank 2 connected to a discharge port 141 on the mounting plate 14 via a discharge pipe 21. Below the mounting plate 13 are two rotating components, a second rotating component and a first rotating component, driven sequentially by a driving component mounted on the movable frame 1. The first rotating component has an eccentrically symmetrical through-hole 311 and through-hole 312. The first through-hole 311 is provided with a temporary storage component that communicates with the discharge port 141, and the volume of the temporary storage component is changed by an adjusting component located below the first rotating component. The adjusting component is provided with a third through-hole 531 that connects to the second through-hole 312 and the first through-hole 311 respectively during initial operation or operation. The third mounting plate 14 is provided with a baffle that closes the discharge port 141 during operation. The second rotating component is provided with a hole-forming component and a discharge component that connect to the third through-hole 531 respectively during initial operation or operation. The first mounting plate 12 is provided with a pressing component that drives the hole-forming component.

[0037] The mobile frame of this invention features three layered mounting plates (one, two, and three), combined with a fertilizer tank, an adjustable-volume temporary storage unit, and linked rotating parts two and one. This allows for dynamic adjustment of fertilizer application based on soil fertility and the tobacco plant growth cycle, avoiding waste and environmental pollution caused by excessive fertilization, while also preventing stunted growth due to nutrient deficiency. The drive unit drives rotating parts two and one to work sequentially, and in conjunction with the adjusting and baffle components, ensures seamless connection between fertilizer storage, quantitative application, and discharge after the drilling and pressing parts have completed their soil hole-opening operations. This improves fertilizer uniformity and optimizes the agronomic process.

[0038] Example 2

[0039] like Figure 1 and Figure 2As shown, this embodiment of the invention provides a fertilizer application device for tobacco fields, including a movable frame 1, which facilitates the movement of the entire device in the tobacco field. On one side of the movable frame 1, from top to bottom, are fixed a first mounting plate 12, a second mounting plate 13, and a third mounting plate 14. The third mounting plate 14 has a discharge port 141. The first mounting plate 12 is equipped with a fertilizer tank 2 with a discharge pipe 21 at the bottom. The fertilizer tank 2 is mounted on the first mounting plate 12, and the bottom surface of the fertilizer tank 2 is connected to the discharge pipe 21, which is positioned directly opposite the discharge port 141. The second mounting plate 13 is equipped with a first rotating component and a second rotating component. The movable frame 1 is equipped with a driving component. It is used to drive rotating component 2 to rotate sequentially with rotating component 1. Rotating component 1 is provided with eccentrically symmetrical through-hole 1 311 and through-hole 2 312. Through-hole 1 311 is provided with a temporary storage component that communicates with discharge port 141, and the volume of the temporary storage component is changed by an adjusting component located below rotating component 1. The adjusting component is provided with through-hole 3 531 that connects to through-hole 2 312 and through-hole 1 311 respectively during initial operation or operation. A baffle component is provided below mounting plate 3 14 to close discharge port 141 during operation. Rotating component 2 is provided with a hole-forming component and a discharge component that connect to through-hole 3 531 respectively during initial operation or operation. A pressing component for driving hole-forming component is provided on mounting plate 1 12.

[0040] In this embodiment, the first rotating component includes a first rotating plate 31, a first rotating shaft 32 is fixed on the top surface of the first rotating plate 31, the first rotating shaft 32 is rotatably mounted on the bottom surface of the second mounting plate 13, a first gear 321 is fixedly sleeved on the first rotating shaft 32, and the first rotating plate 31 is eccentrically and symmetrically provided with a first through-hole 311 and a second through-hole 312. The second rotating component includes a second rotating plate 61, a second rotating shaft 62 is fixed on the top surface of the second rotating plate 61, the second rotating shaft 62 is rotatably mounted on the bottom surface of the second mounting plate 13, a second gear 621 is fixedly sleeved on the second rotating shaft 62, and the second rotating plate 61 is provided with an eccentrically and symmetrical through-hole 1 and through-hole 2, a hole-forming component and a material discharge component are slidably provided in through-hole 1 and through-hole 2 respectively. The first rotating plate 31 is placed above the second rotating plate 61 and partially overlaps with the second rotating plate 61 in the vertical direction. The partial overlap of the first rotating plate 31 and the second rotating plate 61 is the junction between the through-holes or the joint between the through-hole and the through-hole. Figure 6 and Figure 7 ).

[0041] In this embodiment, as Figure 3As shown, the adjusting component includes a height adjuster 51, which is fixedly mounted on the side of the movable frame 1 below the mounting plate 314. The height adjuster 51 is provided with a lifting seat 52 that slides up and down. A connecting plate 521 is fixed to the side of the lifting seat 52. A lifting plate 53 is fixed to the end of the connecting plate 521 away from the lifting seat 52. The lifting plate 53 is located below the first rotating plate 31 and completely overlaps with the first rotating plate 31 in the vertical direction. A through-hole 331 is opened on the lifting plate 53. A fixing plate 54 is attached to the outer peripheral surface of the lifting plate 53. The bottom surface of the fixing plate 54 is flush with the bottom surface of the lifting plate 53. The top of the discharge component initially abuts against the bottom surface of the fixing plate 54.

[0042] In this embodiment, the temporary storage component includes an outer cylinder 41 slidably disposed in the opening 311. An inner cylinder 42 is slidably connected inside the outer cylinder 41, and the top end of the inner cylinder 42 extends out of the outer cylinder 41. An annular plate with a diameter larger than the opening 311 is fitted at the top end of the inner cylinder 42. A second spring 43 is connected between the annular plate and the outer cylinder 41. When the lifting plate 53 moves upward, it drives the outer cylinder 41 to move upward, compressing the second spring 43 and sliding upward relative to the inner cylinder 42, thus reducing the volume of the temporary storage component. When the lifting plate 53 moves downward, it drives the outer cylinder 41 to move downward, and under the reset action of the second spring 43, slides downward relative to the inner cylinder 42, thus increasing the volume of the temporary storage component. Figure 4 and Figure 5 ).

[0043] Specifically, such as Figure 6 and Figure 7 As shown, rotating component one includes a first rotating plate 31, a first rotating shaft 32 is fixed on the top surface of the first rotating plate 31, the first rotating shaft 32 is rotatably mounted on the bottom surface of mounting plate two 13, a first gear 321 is fixedly sleeved on the first rotating shaft 32, and the first rotating plate 31 has a through-hole 311 and a through-hole 312, with a temporary storage component provided in the through-hole 311. Rotating component two includes a second rotating plate 61, a second rotating shaft 62 is fixed on the top surface of the second rotating plate 61, the second rotating shaft 62 is rotatably mounted on the bottom surface of mounting plate two 13, a second gear 621 is fixedly sleeved on the second rotating shaft 62, and two through-holes are opened on the second rotating plate 61, one through-hole has a hole-forming component slidably disposed in it, and the other through-hole has a material discharge component slidably disposed in it.

[0044] like Figure 3As shown, the side of the movable frame 1 is provided with an adjusting component, including a height adjuster 51. The height adjuster 51 is installed on the side of the movable frame 1. The height adjuster 51 is provided with a lifting seat 52 that slides up and down. A connecting plate 521 is fixed to the side of the lifting seat 52. A lifting plate 53 is fixed to the end of the connecting plate 521 away from the lifting seat 52. The lifting plate 53 is located below the first rotating plate 31. A passage 3 531 is opened on the lifting plate 53. In the initial state, the passage 3 531 is set directly opposite the passage 2 312. A fixing plate 54 is fixed to the outer peripheral surface of the lifting plate 53. The fixing plate 54 is located directly above the discharge component. The bottom surface of the fixing plate 54 is flush with the bottom surface of the lifting plate 53. The flush bottom surface design can prevent the discharge component from getting stuck when rotating.

[0045] like Figure 4 As shown, the temporary storage component includes an outer cylinder 41 and an inner cylinder 42. The outer cylinder 41 is slidably disposed in the opening 311, and the inner cylinder 42 is slidably disposed in the outer cylinder 41, with the top end of the inner cylinder 42 extending out of the outer cylinder 41. The outer cylinder 41 and the inner cylinder 42 are connected by a second spring 43. Both the upper and lower ends of the outer cylinder 41 and the inner cylinder 42 are open. In the initial state, the inner cylinder 42 is positioned directly opposite the discharge port 141, and the top end of the inner cylinder 42 is in contact with the bottom surface of the mounting plate 14. The fertilizer in the fertilizer tank 2 will fall into the outer cylinder 41 through the discharge pipe 21. Since the bottom end of the outer cylinder 41 is in contact with the lifting plate 53, that is, the lifting plate 53 blocks the bottom end of the outer cylinder 41, the fertilizer will remain inside the outer cylinder 41. The amount of fertilizer applied at one time can be adjusted by adjusting the position of the lifting plate 53. When the lifting plate 53 descends, the outer cylinder 41 descends accordingly. Under the elastic force of the second spring 43, the inner cylinder 42 is always in a state of pressing against the mounting plate 3 14 during the movement of the outer cylinder 41. When the outer cylinder 41 descends with the lifting plate 53, the space formed by the outer cylinder 41 and the inner cylinder 42 will increase, and more fertilizer will fall into the outer cylinder 41 and the inner cylinder 42, thus increasing the amount of fertilizer applied at one time. Conversely, when the lifting plate 53 and the outer cylinder 41 move upward, the space formed by the outer cylinder 41 and the inner cylinder 42 will decrease, and less fertilizer will fall into the outer cylinder 41 and the inner cylinder 42, thus decreasing the amount of fertilizer applied at one time. The position adjustment of the lifting plate 53 is operated by the height adjuster 51. The lifting seat 52 on the height adjuster 51 drives the lifting plate 53 to move through the connecting plate 521.

[0046] In this embodiment, the baffle includes a sliding rod fixed to the side of the movable frame 1 below the mounting plate 3 14. A sliding block is slidably sleeved on the sliding rod. A return spring is connected between the sliding block and the movable frame 1. A baffle 142 is fixed to the top of the sliding block. The top surface of the baffle 142 is in contact with the bottom surface of the mounting plate 3 14. The baffle 142 moves synchronously to close the discharge port during the process of the outlet 1 311 aligning with the outlet 3. Figure 3 ).

[0047] Specifically, a slidable baffle 142 is provided on the bottom surface of the third mounting plate 14. The baffle 142 is used to block the discharge port 141. A sliding rod is fixed on the side of the movable frame 1. A sliding block is slidably sleeved on the sliding rod. The sliding block is connected to the movable frame 1 by a return spring. The baffle 142 is fixed on the sliding block and the top surface of the baffle 142 is in contact with the bottom surface of the third mounting plate 14. The discharge port 141 is located on the moving path of the baffle 142. When the outer cylinder 41 is separated from the discharge port 141, the outer cylinder 41 no longer blocks the baffle 142. At this time, the baffle 142 will move to the position facing the discharge port 141 under the action of the return spring, blocking the discharge port 141, so that the fertilizer in the discharge pipe 21 temporarily accumulates in the discharge pipe 21.

[0048] In this embodiment, the hole-forming component includes a grounding rod 63 with a tapered end at the bottom and slidably disposed within a through-hole. A second spring 43 is connected between the top of the grounding rod 63 and the top surface of the second rotating plate 61. A limiting plate 631 that can adjust the distance between the grounding rod 63 and the tapered end is provided below the grounding rod 63. The material discharge component includes a material discharge cylinder 64 slidably disposed within a through-hole. A movable cylinder 65 is slidably disposed within the material discharge cylinder 64. The bottom surface of the movable cylinder 65 is connected to a third spring 66 disposed within the material discharge cylinder 64. Figure 4 ).

[0049] Specifically, the hole-forming component includes a ground-inserting rod 63, which is connected to the second rotating plate 61 via a second spring 43. The ground-inserting rod 63 is equipped with a limiting plate 631 that can be adjusted vertically to regulate the depth of the hole. The tail end of the ground-inserting rod 63 has a tapered structure. The smaller the distance between the limiting plate 631 and the tapered structure, the shallower the hole formed in the soil; the larger the distance, the deeper the hole formed in the soil. Workers can adjust the limiting plate 631 to create the hole. The position of plate 631 is used to adjust the fertilization depth; the discharge component includes a discharge cylinder 64, in which a movable cylinder 65 is slidably disposed, and the discharge cylinder 64 and the movable cylinder 65 are connected by a third spring 66. The upper and lower ends of the discharge cylinder 64 and the movable cylinder 65 are both open structures. Under the action of the third spring 66, the movable cylinder 65 is always in a state of pressing against the fixed plate 54. When the lifting plate 53 moves, the fixed plate 54 moves accordingly, and the movable cylinder 65 also extends and retracts accordingly to ensure the smooth discharge of subsequent fertilizer.

[0050] In this embodiment, the pressing member includes a pressure rod 121, which passes through the mounting plate 12 and the mounting plate 13 in sequence and is slidably connected to the mounting plate 12 and the mounting plate 13. The pressure rod 121 includes a first end and a second end. The diameter of the second end is larger than that of the second end, and the first end and part of the second end are positioned above the mounting plate 12. A first spring 122 is connected between the transition between the first end and the second end and the top surface of the mounting plate 12.

[0051] Specifically, a pressing member is provided on the mounting plate 12, which includes a pressing rod 121. The pressing rod 121 passes through the mounting plate 12 and is slidably connected to the mounting plate 12. The top end of the pressing rod 121 is connected to the mounting plate 12 by a first spring 122. The pressing rod 121 also passes through the mounting plate 2 13 and is slidably connected to the mounting plate 2 13.

[0052] In this embodiment, the movable frame 1 includes two symmetrically arranged vertical plates. Support plate one and support plate two are respectively provided at the upper and lower ends of the middle portion of the two vertical plates. A vertical plate is provided near the middle position between support plate one and support plate two. A movable wheel 11 fixed between the two vertical plates is provided below support plate two. An operating lever is provided at the top of the two vertical plates. Specifically, the width of the middle portion of the two vertical plates is greater than the width of the upper and lower ends, and the upper and lower ends are arc-shaped plates.

[0053] In this embodiment, the driving component includes a guide rod 71 and a rotating rod 74. The guide rod 71 is fixed to the side of the movable frame 1 between the second mounting plate 13 and the third mounting plate 14. A slider 72 is slidably sleeved on the guide rod 71. A first rack 73 is fixed to the side of the slider 72. The first rack 73 is positioned opposite the first gear 321 and the second gear 621. The rotating rod 74 is rotatably mounted on a vertical plate. A winding wheel 75 is fixedly sleeved on one end of the rotating rod 74. A pull wire 76 is wound on the winding wheel 75 and connected to the slider 72. A third gear 77 is fixedly sleeved on the other end of the rotating rod 74. A second rack 78 is provided on one side of the third gear 77. The second rack 78 meshes with the third gear 77. A vertical rod 79 is fixed on the second rack 78. The vertical rod 79 passes through the first support plate and is slidably connected to the first support plate. A fourth spring 710 is connected to the top surface of the first support plate of the vertical rod 79 positioned above the first support plate.

[0054] Specifically, the movable frame 1 is equipped with a driving component for driving the rotation of rotating component one and rotating component two. The driving component includes a guide rod 71 and a rotating rod 74. The guide rod 71 is fixed to the side of the movable frame 1, and a slider 72 is slidably sleeved on the guide rod 71. A first rack 73 is fixed to the side of the slider 72. The first rack 73 is positioned opposite the first gear 321 and the second gear 621. The rotating rod 74 is rotatably mounted on the movable frame 1. A winding wheel 75 is fixedly sleeved on the rotating rod 74. A pull wire 76 is wound on the winding wheel 75 and connected to the slider 72. A third gear 77 is fixedly sleeved on the rotating rod 74. A second rack 78 is provided on one side of the third gear 77. The second rack 78 meshes with the third gear 77. A vertical rod 79 is fixed on the second rack 78. The vertical rod 79 passes through the movable frame 1 and is slidably connected to the movable frame 1. The top end of the vertical rod 79 is connected to the movable frame 1 by a fourth spring 710.

[0055] In this embodiment, the mounting plate 13 is a bent plate comprising a first plate, a second plate, and a third plate connected in sequence. The first plate is perpendicularly connected to the vertical plate, and the first and third plates are arranged parallel to each other and perpendicularly connected to the front and rear sides of the second plate, respectively. The first rotating shaft 32 and the second rotating shaft 62 are rotatably mounted on the bottom surface of the third plate, respectively. Specifically, the inflection point formed by the first and second plates can avoid the storage tank from mounting rotating component one and rotating component two through the connection between the second and third plates.

[0056] The specific working principle of this invention is as follows:

[0057] When using the tobacco field topdressing device proposed in this invention, the operator adds fertilizer to fertilizer tank 2. Initially, as... Figure 1As shown, the outer cylinder 41 is positioned directly opposite the discharge port 141, and both the pressure rod 121 and the insertion rod 63 are positioned directly opposite the second opening 312. The first rack 73 is located on one side of the second gear 621 and does not mesh with the second gear 621. When applying fertilizer to the tobacco field, the worker can push the mobile frame 1 to move in the tobacco field. When the insertion rod 63 moves to the fertilization position, the worker presses down the pressure rod 121. As the pressure rod 121 descends, it passes through the second opening 312 and presses down on the insertion rod 63, causing the insertion rod 63 to move downwards until it is inserted into the soil. At this time, the insertion rod 63 can make a hole in the soil. Then, the worker releases the pressure rod 121, and the insertion rod 63 will return to its original position under the action of the third spring 66. After the grounding rod 63 is reset, the worker presses down the vertical rod 79, causing the vertical rod 79 to drive the second rack 78 to move downwards. During the descent, the second rack 78 drives the third gear 77 to rotate, which in turn drives the rotating rod 74 to rotate. When the rotating rod 74 rotates, it drives the winding wheel 75 to rotate, causing the winding wheel 75 to wind up the pull line 76. When the pull line 76 is wound up, it pulls the slider 72, causing the slider 72 to drive the first rack 73 to move. When the first rack 73 moves, it first meshes with the second gear 621 and drives the second gear 621 to rotate. After the first rack 73 disengages from the second gear 621, it meshes with the first gear 321 and drives the first gear 321 to rotate, causing the first rotating shaft 32 to rotate. Therefore, during the movement of the first rack 73, the second rotating shaft 62 and the first rotating shaft 32 will rotate sequentially. When the second rotating shaft 62 rotates, it drives the second rotating plate 61 to rotate. During the meshing process of the first rack 73 and the second gear 621, the first rack 73 can drive the second gear 621 to rotate 180°, which causes the second rotating plate 61 to rotate 180°. During this process, the positions of the insertion rod 63 and the discharge cylinder 64 will be reversed, so that the discharge cylinder 64 rotates to the position directly opposite the second opening 312. When the first rotating shaft 32 rotates, it will drive the first rotating plate 31 to rotate. During the meshing process of the first rack 73 and the first gear 321, the first rack 73 can drive the first gear 321 to rotate 180°, which causes the first rotating plate 31 to rotate 180°. During this process, the outer cylinder 41 will rotate to the position directly opposite the second opening 312. As the outer cylinder 41 rotates with the first rotating plate 31, the bottom surface of the outer cylinder 41 is always in contact with the top surface of the lifting plate 53. This design can prevent the fertilizer inside the outer cylinder 41 from falling out during the rotation process. Only when the outer cylinder 41 rotates to the position directly opposite the second opening 312 will the fertilizer in the outer cylinder 41 fall out.Since the second gear 621 rotates first, the first gear 321 rotates only after the second gear 621 has finished rotating. Therefore, before the outer cylinder 41 rotates to the position directly opposite the second opening 312, the discharge cylinder 64 moves and rotates to the position directly opposite the second opening 312. This allows the fertilizer in the outer cylinder 41 to fall smoothly into the discharge cylinder 64, and finally fall into the aforementioned hole through the discharge cylinder 64, thus realizing the topdressing operation. Figure 8 The ground-inserting rod 63 has an adjustable limiting plate 631. By adjusting the distance between the limiting plate and the conical tail end, the depth of the hole can be adjusted, thereby adjusting the fertilization depth. The device also has a function to adjust the amount of fertilizer applied. The operator adjusts the position of the lifting plate 53 through the height adjuster 51. When the lifting plate 53 descends, the outer cylinder 41 descends accordingly, increasing the space between the outer cylinder 41 and the inner cylinder 42, thus increasing the amount of fertilizer applied at one time, and vice versa. Under the action of the fourth spring 710, the movable cylinder 65 always presses against the fixed plate 54. When the lifting plate 53 moves, the movable cylinder 65 extends and retracts to ensure smooth fertilizer discharge, and the bottom surfaces of the lifting plate 53 and the fixed plate 54 are flush to prevent the movable cylinder 65 from getting stuck during rotation. After a single fertilization is completed, the first rack 73 can automatically reset under the action of a spring or other elastic structure (existing technology, not shown in the figure), or it can be manually reset by the operator.

[0058] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of the present invention without departing from the scope of the present invention are within the protection scope of the present invention.

Claims

1. A fertilizer application device for tobacco fields, characterized in that, The device includes a movable frame with mounting plates 1, 2, and 3 fixed from top to bottom on one side. Mounting plate 1 has a fertilizer tank connected to the discharge port on mounting plate 3 via a discharge pipe. Below mounting plate 2 are rotating parts 2 and 1, which are driven sequentially by a drive unit on the movable frame. Rotating part 1 has eccentrically symmetrical openings 1 and 2. Opening 1 has a temporary storage component connected to the discharge port, and the volume of the temporary storage component is changed by an adjusting component located below rotating part 1. The adjusting component has an opening 3 that connects to openings 2 and 1 respectively during initial operation or operation. Below mounting plate 3 is a baffle that closes the discharge port during operation. Rotating part 2 has a hole-forming component and a discharge component that connect to opening 3 respectively during initial operation or operation. Mounting plate 1 has a pressing component that drives the hole-forming component.

2. The fertilizer application rate adjustment device for tobacco fields according to claim 1, characterized in that, The first rotating component includes a first rotating plate, on the top surface of which a first rotating shaft is fixed. The first rotating shaft is rotatably mounted on the bottom surface of the second mounting plate. A first gear is fixedly sleeved on the first rotating shaft. The first rotating plate has two eccentrically symmetrical through-holes. The second rotating component includes a second rotating plate, on the top surface of which a second rotating shaft is fixed. The second rotating shaft is rotatably mounted on the bottom surface of the second mounting plate. A second gear is fixedly sleeved on the second rotating shaft. The second rotating plate has two eccentrically symmetrical through-holes. A hole-forming component and a material discharge component are slidably provided in through-holes one and two, respectively. The first rotating plate is positioned above the second rotating plate and partially overlaps with the second rotating plate in the vertical direction. The partial overlap between the first and second rotating plates is the junction between the through-holes or the connection between the through-hole and the through-hole.

3. The fertilizer application rate adjustment device for tobacco fields according to claim 2, characterized in that, The adjusting component includes a height adjuster, which is fixedly mounted on the side of the movable frame below the mounting plate three. The height adjuster is provided with a lifting seat that slides up and down. A connecting plate is fixed to the side of the lifting seat. A lifting plate is fixed to the end of the connecting plate away from the lifting seat. The lifting plate is located below the first rotating plate and completely overlaps with the first rotating plate in the vertical direction. The lifting plate has a through opening three. A fixing plate is fixedly attached to the outer circumference of the lifting plate. The bottom surface of the fixing plate is flush with the bottom surface of the lifting plate. The top of the discharge component initially abuts against the bottom surface of the fixing plate.

4. The tobacco field fertilizer application rate regulating fertilization device according to claim 3, characterized in that, The temporary storage component includes an outer cylinder slidably disposed in a through-hole. An inner cylinder is slidably connected inside the outer cylinder, with the top end of the inner cylinder extending out of the outer cylinder. An annular plate with a diameter larger than that of the through-hole is fitted at the top end of the inner cylinder. A second spring is connected between the annular plate and the outer cylinder. When the lifting plate moves upward, it drives the outer cylinder to move upward, compressing the second spring and sliding upward relative to the inner cylinder, thus reducing the volume of the temporary storage component. When the lifting plate moves downward, it drives the outer cylinder to move downward, sliding downward relative to the inner cylinder under the reset action of the second spring, thus increasing the volume of the temporary storage component.

5. The fertilizer application rate adjustment device for tobacco fields according to claim 1, characterized in that, The baffle includes a sliding rod fixed to the side of the movable frame below the mounting plate three. A sliding block is slidably sleeved on the sliding rod. A return spring is connected between the sliding block and the movable frame. A baffle is fixed to the top of the sliding block. The top surface of the baffle is in contact with the bottom surface of the mounting plate three. The baffle moves synchronously to close the discharge port during the process of the outlet one docking with the outlet three.

6. The tobacco field fertilizer application rate regulating fertilization device according to claim 2, characterized in that, The hole-forming component includes a grounding rod with a tapered end at the bottom and slidably disposed within a through-hole. A second spring is connected between the top of the grounding rod and the top surface of the second rotating plate. A limiting plate that can adjust the distance between the grounding rod and the tapered end is provided below the grounding rod. The material discharge component includes a material discharge cylinder slidably disposed within a through-hole. A movable cylinder is slidably disposed within the material discharge cylinder. The bottom surface of the movable cylinder is connected to a third spring disposed within the material discharge cylinder.

7. The tobacco field fertilizer application rate regulating fertilization device according to claim 6, characterized in that, The pressing component includes a pressure rod, which passes through mounting plate one and mounting plate two in sequence and is slidably connected to mounting plate one and mounting plate two. The pressure rod includes a first end and a second end. The diameter of the second end is larger than that of the second end, and the first end and part of the second end are positioned above mounting plate one. A first spring is connected between the transition between the first end and the second end and the top surface of mounting plate one.

8. The tobacco field fertilizer application rate regulating fertilization device according to claim 2, characterized in that, The movable frame includes two symmetrically arranged vertical plates. Support plate one and support plate two are respectively provided at the upper and lower ends of the middle part of the two vertical plates. A vertical plate is provided at the middle position between support plate one and support plate two. A moving wheel fixed between the two vertical plates is provided below support plate two. An operating lever is provided at the top of the two vertical plates.

9. The tobacco field fertilizer application rate regulating fertilization device according to claim 8, characterized in that, The driving component includes a guide rod and a rotating rod. The guide rod is fixed to the side of the movable frame between mounting plate two and mounting plate three. A slider is slidably sleeved on the guide rod. A first rack is fixed to the side of the slider. The first rack is positioned opposite the first gear and the second gear. The rotating rod is rotatably mounted on a vertical plate. A winding wheel is fixedly sleeved on one end of the rotating rod. A pull wire is wound on the winding wheel and connected to the slider. A third gear is fixedly sleeved on the other end of the rotating rod. A second rack is provided on one side of the third gear. The second rack meshes with the third gear. A vertical rod is fixed on the second rack. The vertical rod passes through support plate one and is slidably connected to support plate one. A fourth spring is connected to the top surface of support plate one of the vertical rods positioned above support plate one.

10. The tobacco field fertilizer application rate regulating fertilization device according to claim 8, characterized in that, The second mounting plate is a bent plate comprising a first plate, a second plate, and a third plate connected in sequence. The first plate is perpendicularly connected to the vertical plate. The first plate and the third plate are arranged in parallel and are perpendicularly connected to the front and rear sides of the second plate, respectively. The first rotating shaft and the second rotating shaft are rotatably mounted on the bottom surface of the third plate, respectively.

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