Agricultural fertilization precise control device

Abstract

The invention relates to the technical field of agricultural fertilization, and discloses an agricultural fertilization precise control device which comprises a planting shed, a fertilizer tank, limiting plates and positioning sliding strips, the fertilizer tank is arranged at the bottom of an inner cavity of the planting shed, the limiting plates are symmetrically and fixedly connected to the top of the inner cavity of the planting shed, and the positioning sliding strips are slidably connected to the interiors of the limiting plates; a fertilizer applying assembly used for fertilizer discharging is arranged in the planting shed; when the air pump in the fertilizer tank conveys fertilizer through the fertilizer application pipe, the rotating flywheel screw rod can effectively stir the fertilizer in the fertilizer application pipe, so that the flowability of the fertilizer in the pipe is remarkably improved, the fertilizer is prevented from being accumulated and blocked, the fertilizer can be discharged more smoothly and uniformly, and the fertilizer is quickly thrown out of the fertilizer application pipe through the rotation of the flywheel screw rod, so that the fertilizer application efficiency is improved. Compared with a traditional device, the device can more effectively guarantee that crops absorb nutrients comprehensively and evenly, meanwhile, rotation of the fertilizer control valve is indirectly controlled through the flywheel lead screw, and fertilizer accumulation and blockage in the fertilizer application pipe are avoided.

Description

Technical Field

[0001] The present invention relates to the field of agricultural fertilization, and in particular to a precise control device for agricultural fertilization. Background Art

[0002] The agricultural fertilization precision control device is a mechanized agricultural fertilization equipment used in greenhouse agricultural production. It aims to achieve precise fertilization, provide good growth conditions for crops, improve yield and quality, while reducing costs and protecting the environment.

[0003] Traditional fertilizer spreaders on the current market are one-way and one-row models. In large planting sheds, one-way and one-row fertilization is difficult to ensure comprehensive and uniform coverage of the planting area. When faced with planting sheds with different planting conditions, uneven fertilization is prone to occur, affecting the continuity and stability of agricultural production. In addition, when adjusting the fertilization components for different numbers of ridges in the planting shed, the operation is often complicated and time-consuming.

[0004] Traditional fertilizer spreaders also have certain drawbacks in fertilizer transportation. For example, fertilizer is prone to poor flow in the fertilizer pipe, especially when the fertilizer particles are uneven or the humidity is high and agglomerates, blockages often occur, and the fertilization operation has to be interrupted for unblocking, which greatly affects work efficiency. Secondly, in terms of precise control of the amount of fertilizer applied, traditional devices have poor flexibility. They mostly use preset fixed programs to control the amount of fertilizer applied. They cannot make real-time and precise adjustments based on actual conditions such as differences in soil fertility of different lands and changes in fertilizer demand at different growth stages of crops. Therefore, facing the complex and changeable agricultural production environment, it is difficult to achieve precise fertilization, which not only causes a waste of fertilizer resources and increases production costs, but also pollutes the soil and surrounding environment due to excessive fertilization.

[0005] Therefore, it is necessary to provide a precise control device for agricultural fertilization to solve the above problems. Summary of the invention

[0006] In view of the shortcomings of the prior art, the object of the present invention is to provide a precise control device for agricultural fertilization.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an agricultural fertilization precision control device, comprising a planting shed, a fertilizer tank, a limit plate, and a positioning slide bar, wherein the fertilizer tank is arranged at the bottom of the inner cavity of the planting shed, the limit plate is symmetrically fixedly connected to the top of the inner cavity of the planting shed, the positioning slide bar is slidably connected to the inside of the limit plate, and a fertilization component for discharging fertilizer is arranged inside the planting shed;

[0008] The fertilization assembly includes three fertilization pipes connected to the fertilizer tank, the bottom of the three fertilization pipes are equipped with electric motors, the insides of the three fertilization pipes are penetrated and rotatably connected with flywheel screws, the top of each flywheel screw is threadedly connected with a slider group, the slider group is rotatably connected with a Y-shaped balance rod, the end of the Y-shaped balance rod away from the slider group is rotatably connected with a pull rod, and the end of the pull rod away from the Y-shaped balance rod is rotatably connected with a fertilizer control valve.

[0009] Preferably, the fertilization assembly also includes an L-shaped connecting plate, which is fixedly connected to the bottom of the positioning slide bar, the interior of the positioning slide bar is slidably connected to a square block, the top of the L-shaped connecting plate is rotatably connected to a second threaded rod, the outer wall of the L-shaped connecting plate is slidably connected to three fixed blocks arranged equidistantly, and the upper outer surface of the fertilization tube is fixedly connected to a U-shaped limiting rod.

[0010] Preferably, a driving assembly is provided inside the planting shed, and the driving assembly includes a first positioning block, the first positioning block is fixedly connected to the inner wall of the planting shed, a servo motor is installed inside the first positioning block, a driving gear disk is fixedly connected to the output end of the servo motor, the first positioning block is rotatably connected to the inside of a first threaded rod, and a bevel gear is fixedly connected to the outer wall of the first threaded rod.

[0011] Preferably, an adjustment component is provided inside the planting shed, and the adjustment component includes a second positioning block, the second positioning block is fixedly connected to the inner wall of the planting shed, a fixing rod is fixedly connected inside the second positioning block, positioning rings are symmetrically slidably connected at both ends of the fixing rod, and a connecting ring is slidably connected to the outer wall of the fixing rod.

[0012] Preferably, the middle portion of the Y-shaped balance rod is rotatably connected to the top of the U-shaped limit rod, and the fertilizer control valve is rotatably connected to the inside of the fertilizer pipe.

[0013] Preferably, the square clamping block is clamped with the L-shaped connecting plate, one end of the second threaded rod away from the L-shaped connecting plate is rotatably connected to the square clamping block, and the second threaded rod is threadedly connected to the inside of the fixed block.

[0014] Preferably, the bevel gear is meshed with the driving gear disc.

[0015] Preferably, one end of the first threaded rod away from the first positioning block is rotatably connected to the inside of the second positioning block, and one end of the fixing rod away from the second positioning block is fixedly connected to the inside of the first positioning block.

[0016] Preferably, the connecting ring is threadably matched with the first threaded rod.

[0017] The invention provides an agricultural fertilization precision control device. Compared with the prior art, the invention has the following beneficial effects:

[0018] Through the cooperation of the flywheel rotation on the flywheel screw and the fertilizer pipe, the thrown fertilizer can be made to reach the designated position more accurately and farther. At the same time, it can also prevent the lumps of fertilizer from accumulating at the discharge port and causing blockage, and speed up the throwing of fertilizer, thereby increasing the uniformity of throwing. Therefore, there will be no waste of fertilizer due to more fertilizer thrown in some areas due to low throwing force, and the fertilizer can be discharged more smoothly and evenly.

[0019] By reciprocating fertilization in the greenhouse, the planting area in the greenhouse can be quickly and evenly covered, and there will be no problem of excessive or insufficient regional fertilization. Reciprocating fertilization can be used to fertilize unevenly or less fertilized areas for a second time, improving fertilization efficiency. The two-way drive method enables the fertilizer pipe to fully and evenly cover the ridges in the planting shed, which not only improves fertilization efficiency, but also saves manpower and time costs through this convenient adjustment method, allowing the fertilizer spreader to quickly adapt to the needs of different planting scales and layouts.

[0020] By adjusting the amount of fertilizer discharged, the fertilizer at the outlet of the fertilization pipe can be reduced, the amount of fertilizer discharged can be limited, excessive spreading can be prevented, and the uniformity of fertilizer spreading can be increased. The situation in which too much fertilizer cannot be effectively spread out at the same time can be avoided, and blockage in the area of ​​the fertilization pipe outlet can be avoided.

[0021] It can also control the scope of fertilization more accurately, avoid fertilizer waste and over-fertilization, and ensure that every inch of land receives the appropriate amount of fertilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the position relationship of the overall device in the present invention;

[0023] Figure 2 It is a cross-sectional view of the overall device of the present invention;

[0024] Figure 3 This is a schematic diagram of the positional relationship among the planting shed, the first positioning block, the first threaded rod, and the second positioning block in the present invention;

[0025] Figure 4 For the present invention Figure 3 A magnified view of the structure at center;

[0026] Figure 5 This is a schematic diagram of the positional relationship among the first positioning block, the servo motor, the driving gear plate, and the bevel gear in the present invention;

[0027] Figure 6 This is a schematic diagram of the positional relationship among the second positioning block, the fixing rod and the positioning ring in the present invention;

[0028] Figure 7 It is a schematic diagram of the position relationship among the positioning slide bar, the L-shaped connecting plate, the second threaded rod, and the square clamping block in the present invention;

[0029] Figure 8 This is a schematic diagram of the positional relationship among the L-shaped connecting plate, the square clamping block, and the second threaded rod in the present invention;

[0030] Fig. 9 This is a schematic diagram of the position relationship among the fixed block, the fertilizer pipe, and the motor in the present invention;

[0031] Fig.10 For the present invention Fig. 9 A magnified view of the structure at B in the middle;

[0032] Fig.11 This is a schematic diagram of the position relationship among the fertilizer pipe, flywheel screw and motor in the present invention;

[0033] Fig.12 For the present invention Fig.11 Enlarged view of the structure at point C in the middle.

[0034] Reference numerals: 11, planting shed; 12, fertilizer tank; 13, limit plate; 14, positioning slide bar;

[0035] The driving assembly includes: 21, a first positioning block; 22, a servo motor; 23, a driving gear plate; 24, a bevel gear; 25, a first threaded rod;

[0036] The adjustment assembly includes: 31, a second positioning block; 32, a fixing rod; 33, a positioning ring; 34, a connecting ring;

[0037] The fertilization assembly includes: 41, an L-shaped connecting plate; 42, a square clamping block; 43, a second threaded rod; 44, a fixing block; 45, a fertilization pipe; 46, an electric motor; 47, a flywheel screw; 48, a slider group; 49, a Y-shaped balance rod; 410, a U-shaped limit rod; 411, a pull rod; and 412, a fertilizer control valve. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] In the description of the present invention, the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0040] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0041] Implementation example Figures 7 to 12 As shown, an agricultural fertilization precision control device provided by an embodiment of the present invention includes a planting shed 11, a fertilizer tank 12, a limit plate 13, and a positioning slide bar 14. The fertilizer tank 12 is arranged at the bottom of the inner cavity of the planting shed 11, and an air pump is arranged inside the fertilizer tank 12 for conveying fertilizer. The limit plate 13 is symmetrically fixedly connected to the top of the inner cavity of the planting shed 11, and the positioning slide bar 14 is slidably connected to the inside of the limit plate 13. A fertilization component for discharging fertilizer is arranged inside the planting shed 11;

[0042] The fertilization assembly includes three fertilization pipes 45 connected to the fertilizer tank 12, and a motor 46 is installed at the bottom of the three fertilization pipes 45. The inside of the three fertilization pipes 45 is penetrated and rotatably connected with a flywheel screw 47, and the flywheel screw 47 is composed of a screw and a fan blade. The contact portion between the flywheel screw 47 and the outer surface of the fertilization pipe 45 is provided with a sealing ring to prevent leakage. Each flywheel screw 47 is composed of a flywheel and a screw, and the bottom of the flywheel screw 47 is fixedly connected to the output shaft of the motor 46, and the flywheel of the flywheel screw 47 is located in the wider column area on the side of the fertilization pipe 45, which can avoid the flywheel screw The flywheel 47 occupies the space of the main pipeline of the fertilizer pipe 45, and the contact portion between the fertilizer pipe 45 and the outer wall of the flywheel screw 47 is provided with a sealing ring to prevent leakage. The top thread of each flywheel screw 47 is connected to a slider group 48, and a Y-shaped balance rod 49 is rotatably connected to the slider group 48. The end of the Y-shaped balance rod 49 away from the slider group 48 is rotatably connected to a pull rod 411, and the end of the pull rod 411 away from the Y-shaped balance rod 49 is rotatably connected to a fertilizer control valve 412. The fertilizer control valve 412 is rotatably connected to the inside of the fertilizer pipe 45. The rotation of the fertilizer control valve 412 causes the built-in valve core to rotate to control the amount of fertilizer released.

[0043] The fertilization assembly also includes an L-shaped connecting plate 41, which is fixedly connected to the bottom of the positioning slide 14. The interior of the positioning slide 14 is slidably connected with a square block 42, which is clamped with the L-shaped connecting plate 41. The top of the L-shaped connecting plate 41 is rotatably connected with a second threaded rod 43, and the end of the second threaded rod 43 away from the L-shaped connecting plate 41 is rotatably connected to the square block 42. The outer wall of the L-shaped connecting plate 41 is slidably connected with three fixed blocks 44 arranged at equal intervals. The second threaded rod 43 is threadedly connected to the inside of the fixed block 44 to facilitate adjustment of the spacing and number of the fixed blocks 44. The upper outer surface of the fertilization tube 45 is fixedly connected with a U-shaped limit rod 410, and the middle part of the Y-shaped balance rod 49 is rotatably connected to the top of the U-shaped limit rod 410.

[0044] The fertilization pipe 45 is composed of a soft pipe a and a hard pipe b fixedly connected therewith, and the hard pipe is connected to the fixing block 44 , and the soft pipe is fixedly connected to the fertilizer tank 12 .

[0045] like Figures 1 to 6 As shown, a driving assembly is provided inside the planting shed 11, and the driving assembly includes a first positioning block 21, the first positioning block 21 is fixedly connected to the inner wall of the planting shed 11, a servo motor 22 is installed inside the first positioning block 21, and the servo motor 22 and the motor 46 can rotate forward and reversely, and a driving gear disc 23 is fixedly connected to the output end of the servo motor 22, and a first threaded rod 25 is rotatably connected inside the first positioning block 21, and one end of the first threaded rod 25 away from the first positioning block 21 is rotatably connected to the inside of the second positioning block 31, and a bevel gear 24 is fixedly connected to the outer wall of the first threaded rod 25, and the bevel gear 24 is meshed with the driving gear disc 23, and during the rotation of the driving gear disc 23, the first threaded rod 25 is driven to rotate through the bevel gear 24;

[0046] An adjustment component is provided inside the planting shed 11, and the adjustment component includes a second positioning block 31, the second positioning block 31 is fixedly connected to the inner wall of the planting shed 11, and the second positioning block 31 is at the same horizontal height as the first positioning block 21, and a fixing rod 32 is fixedly connected inside the second positioning block 31, and one end of the fixing rod 32 away from the second positioning block 31 is fixedly connected to the inside of the first positioning block 21, and the two ends of the fixing rod 32 are symmetrically slidably connected with a positioning ring 33, and the internal thread of the positioning ring 33 is connected with a screw, and the screw passes through the positioning ring 33 and is located in a straight groove provided at both ends of the fixing rod 32. Figure 5 As shown, the outer wall of the fixed rod 32 is slidably connected to a connecting ring 34, and the outer wall of the fixed rod 32 is slidably connected to a connecting ring 34. The connecting ring 34 is threadedly matched with the first threaded rod 25, so that the connecting ring 34 can be driven to move along the outer wall of the fixed rod 32 during the rotation of the first threaded rod 25.

[0047] In combination with the above embodiments, the entire working process and working principle of the above embodiments are as follows:

[0048] During operation, the staff can slide the square block 42 along the inner side of the positioning slide bar 14 in a direction away from the L-shaped connecting plate 41, so that the L-shaped connecting plate 41 is separated from the square block 42, and then a certain gap is formed between the L-shaped connecting plate 41 and the square block 42. Then, according to the number of ridges inside the planting shed 11, the adjustment fixing block 44 is installed on the second threaded rod 43 or the redundant adjustment fixing block 44 is removed. After the adjustment is completed, the L-shaped connecting plate 41 is connected to the square block 42. At this time, the second threaded rod 43 is manually rotated to adjust the gap between the fixing block 44 and the fertilizer pipe 45, so as to facilitate fertilization of crops.

[0049] The staff turns on the servo motor 22 and the electric motor 46, and then the servo motor 22 drives the driving gear disc 23 to rotate, and the bevel gear 24 is meshed with the driving gear disc 23. During the rotation of the driving gear disc 23, the bevel gear 24 drives the first threaded rod 25 to rotate;

[0050] Therefore, the rotating first threaded rod 25 will threadably drive the connecting ring 34 to slide horizontally along the outer wall of the fixed rod 32. At the same time, during the horizontal sliding of the connecting ring 34, the connecting ring 34 will drive the L-shaped connecting plate 41 and the square block 42 to move, so that the positioning slide 14 slides along the inner part of the limit plate 13, and the L-shaped connecting plate 41 will drive the fertilizer pipe 45 to move synchronously along the ridge straight line through the fixed block 44, so that the fertilizer inside the fertilizer pipe 45 can accurately fall on the ridge at the bottom of the planting shed 11. At the same time, the servo motor 22 and the motor 46 can rotate forward and backward, and then the first threaded rod 25 will threadably drive the connecting ring 34 to slide along the fixed rod 32 The outer wall of the connecting ring 34 reciprocates horizontally, so that the connecting ring 34 drives the L-shaped connecting plate 41, the fixed block 44, and the fertilizer pipe 45 to slide synchronously horizontally and reciprocately, so as to achieve the purpose of reciprocating and efficient fertilization of the crops in the greenhouse; through the rotation of the flywheel on the flywheel screw and the cooperation of the fertilizer pipe, the thrown fertilizer can be thrown farther and more accurately to the designated position, and at the same time, it can also prevent the accumulation of agglomerated fertilizer at the discharge port and cause blockage, and speed up the throwing of fertilizer, thereby increasing the uniformity of throwing, so as not to waste fertilizer due to small throwing force, so that the fertilizer can be discharged more smoothly and evenly.

[0051] By reciprocating fertilization in the greenhouse, the planting area in the greenhouse can be quickly and evenly covered, and there will be no problem of excessive or insufficient regional fertilization. Reciprocating fertilization can be used to perform secondary fertilization on areas that are not evenly fertilized or less fertilized, thereby improving fertilization efficiency. The bidirectional driving method enables the fertilization pipe 45 to fully and evenly cover the ridges in the planting shed 11, which not only improves the fertilization efficiency, but also saves manpower and time costs through this convenient adjustment method, allowing the fertilizer spreader to quickly adapt to the needs of different planting scales and layouts.

[0052] Secondly, the screw at the top of the positioning ring 33 can be rotated in the reverse direction so that the positioning ring 33 can slide in the straight groove at the top of the fixing rod 32. When the two positioning rings 33 move to a suitable distance, the movement range of the connecting ring 34 can be limited.

[0053] After the motor 46 is started, the air pump inside the fertilizer tank 12 is transported through the fertilizer pipe 45. At this time, the flywheel on the flywheel screw 47 will move the fertilizer inside the fertilizer pipe 45. Through the rotation of the flywheel on the flywheel screw 47 and the cooperation of the fertilizer pipe 45, the thrown fertilizer can be thrown farther and more accurately to the designated position. At the same time, it can also prevent the accumulation of lumped fertilizer at the discharge port and cause blockage, and speed up the throwing of fertilizer, thereby increasing the uniformity of throwing. Therefore, due to the small throwing force, more fertilizer is thrown in some areas, causing fertilizer waste, and the fertilizer can be discharged more smoothly and evenly;

[0054] At the same time, when the motor 46 drives the flywheel screw 47 to rotate forward and reverse, the flywheel screw 47 will threadably drive the slider group 48 to descend or ascend, and during the descent of the slider group 48, the Y-shaped balance rod 49 will be pulled to rotate with the U-shaped limit rod 410 as the axis, and the end of the Y-shaped balance rod 49 away from the slider group 48 will pull the fertilizer control valve 412 to rotate through the pull rod 411, so that the valve core inside the fertilizer control valve 412 rotates, and then the flow space inside the fertilizer pipe 45 is intermittently increased and decreased;

[0055] On the contrary, when the flywheel screw 47 drives the slider group 48 to descend, the slider group 48 will pull the Y-shaped balance rod 49 to rotate around the U-shaped limit rod 410, and then the end of the Y-shaped balance rod 49 away from the slider group 48 will pull the fertilizer control valve 412 down through the pull rod 411, so that the fertilizer control valve 412 rotates around the inside of the fertilizer pipe 45, thereby reducing the amount of fertilizer inside the fertilizer pipe 45. When the fertilizer control valve 412 inside the fertilizer pipe 45 is alternately controlled, the fertilizer at the outlet of the fertilizer pipe 45 can be reduced, the discharge amount of the scattered fertilizer can be limited, excessive spreading can be prevented, and the uniformity of the fertilizer spreading can be increased, so that the fertilizer will not be effectively dispersed due to too much fertilizer being scattered at the same time, and the blockage of the area at the outlet of the fertilizer pipe 45 can be avoided.

[0056] By adjusting the amount of fertilizer discharged, the fertilizer at the outlet of the fertilization pipe 45 can be reduced, the amount of fertilizer discharged can be limited, excessive spreading can be prevented, and the uniformity of fertilizer spreading can be increased. The situation in which too much fertilizer cannot be effectively dispersed when being scattered at the same time can be avoided, and blockage in the area of ​​the fertilization pipe outlet can be avoided.

[0057] It can also control the scope of fertilization more accurately, avoid fertilizer waste and over-fertilization, and ensure that every inch of land receives the appropriate amount of fertilizer.

[0058] For those skilled in the art, although several embodiments and examples of the present invention are described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the subject matter of the invention. These embodiments and their variations are included in the scope and subject matter of the invention, and are included in the invention described in the claims and the scope of their equivalents.

[0059] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A precise control device for agricultural fertilization, comprising a planting shed (11), a fertilizer tank (12), a limit plate (13), and a positioning slide bar (14), wherein the fertilizer tank (12) is arranged at the bottom of the inner cavity of the planting shed (11), the limit plate (13) is symmetrically fixedly connected to the top of the inner cavity of the planting shed (11), and the positioning slide bar (14) is slidably connected to the inside of the limit plate (13), characterized in that: A fertilizing component for discharging fertilizer is arranged inside the planting shed (11); The fertilization assembly comprises three fertilization pipes (45) connected to the fertilizer tank (12), the bottom of each of the three fertilization pipes (45) is provided with an electric motor (46), the interior of each of the three fertilization pipes (45) is penetrated by a flywheel screw (47) and is rotatably connected thereto, the top of each flywheel screw (47) is threadedly connected to a slider group (48), a Y-shaped balance rod (49) is rotatably connected to the slider group (48), one end of the Y-shaped balance rod (49) away from the slider group (48) is rotatably connected to a pull rod (411), and one end of the pull rod (411) away from the Y-shaped balance rod (49) is rotatably connected to a fertilizer control valve (412).

2. The agricultural fertilization precision control device according to claim 1, characterized in that: The fertilizing assembly also includes an L-shaped connecting plate (41), the L-shaped connecting plate (41) is fixedly connected to the bottom of the positioning slide (14), the interior of the positioning slide (14) is slidably connected to a square clamping block (42), the top of the L-shaped connecting plate (41) is rotatably connected to a second threaded rod (43), the outer wall of the L-shaped connecting plate (41) is slidably connected to three fixed blocks (44) arranged at equal distances, and the upper part of the outer surface of the fertilizing pipe (45) is fixedly connected to a U-shaped limiting rod (410).

3. The agricultural fertilization precision control device according to claim 1, characterized in that: A driving assembly is arranged inside the planting shed (11), and the driving assembly includes a first positioning block (21), the first positioning block (21) is fixedly connected to the inner wall of the planting shed (11), a servo motor (22) is installed inside the first positioning block (21), a driving gear disk (23) is fixedly connected to the output end of the servo motor (22), a first threaded rod (25) is rotatably connected inside the first positioning block (21), and a bevel gear (24) is fixedly connected to the outer wall of the first threaded rod (25).

4. The agricultural fertilization precision control device according to claim 3, characterized in that: An adjustment component is provided inside the planting shed (11), and the adjustment component includes a second positioning block (31), the second positioning block (31) is fixedly connected to the inner wall of the planting shed (11), a fixing rod (32) is fixedly connected inside the second positioning block (31), positioning rings (33) are symmetrically slidably connected at both ends of the fixing rod (32), and a connecting ring (34) is slidably connected to the outer wall of the fixing rod (32).

5. The agricultural fertilization precision control device according to claim 1, characterized in that: The middle portion of the Y-shaped balancing rod (49) is rotatably connected to the top of the U-shaped limiting rod (410), and the fertilizer control valve (412) is rotatably connected to the inside of the fertilizer pipe (45).

6. The agricultural fertilization precision control device according to claim 2, characterized in that: The square clamping block (42) is clamped with the L-shaped connecting plate (41), one end of the second threaded rod (43) away from the L-shaped connecting plate (41) is rotatably connected to the square clamping block (42), and the second threaded rod (43) is threadedly connected to the inside of the fixing block (44).

7. The agricultural fertilization precision control device according to claim 3, characterized in that: The bevel gear (24) is meshed with the driving gear disc (23).

8. The agricultural fertilization precision control device according to claim 4, characterized in that: One end of the first threaded rod (25) away from the first positioning block (21) is rotatably connected to the inside of the second positioning block (31), and one end of the fixed rod (32) away from the second positioning block (31) is fixedly connected to the inside of the first positioning block (21).

9. The agricultural fertilization precision control device according to claim 4, characterized in that: The connecting ring (34) is threadably matched with the first threaded rod (25).

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