A soil acidification and improvement device for planting

By designing a soil acidification improvement device, a mechanical structure is used to achieve uniform spraying of the improvement solution and soil excavation and screening, which solves the hardening and compaction problems caused by soil acidification, improves soil permeability and quality, and reduces improvement costs.

CN122207409APending Publication Date: 2026-06-16INST OF AGRI ENVIRONMENT & SOIL HAINAN ACAD OF AGRI SCI
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Patent Information

Application Number
CN202610575662.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-28
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing soil acidification remediation technologies, through the application of lime and alkaline fertilizers, lead to soil hardening and reduced aeration, which in turn causes soil compaction and affects crop growth.

Method used

Design a soil acidification improvement device for planting, which uses a mechanical structure to achieve uniform spraying of the improvement liquid, soil excavation and screening, and combines raw materials such as lime and biochar to neutralize soil acidity and prevent compaction.

Benefits of technology

It improves soil permeability, prevents soil hardening, improves soil quality, reduces improvement costs, and enhances the uniformity and efficiency of fertilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the field of agricultural planting technology, in particular to a soil acidification and improvement device for planting, which comprises a moving mechanism, improvement liquid for improving soil quality and a controller, a driving element is fixedly connected to the outer side wall of the moving mechanism, a first gear is coaxially fixedly connected to the output shaft of the driving element, an eccentric rod is eccentrically fixedly connected to the side wall of the first gear, hinged rods are symmetrically hinged to the eccentric rod, mounting racks are hinged to the ends of the hinged rods away from the eccentric rod, a plurality of spraying assemblies for spraying the improvement liquid are arranged on the mounting racks; and screening assemblies for screening loose soil and hardened soil are arranged at the bottoms of the mounting racks. The application has a complete structure, perfect functions, can improve the improvement effect of the soil and reduce the improvement cost.
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Description

Technical Field

[0001] This invention relates to the field of agricultural planting technology, specifically to a soil acidification improvement device for planting. Background Technology

[0002] Soil acidification is a process of continuous decrease in soil pH, a common soil degradation problem in agricultural production. The causes of soil acidification mainly include natural and anthropogenic factors, such as organic acids produced by plant root metabolism and microbial respiration, the long-term effects of acidic precipitation, and the long-term excessive application of acidic fertilizers. Soil acidification leads to serious consequences such as reduced soil nutrient availability, microbial community imbalance, and decreased crop yield and quality.

[0003] In existing technologies, the pH value of acidic soil is mainly adjusted by applying lime and alkaline fertilizers. Although this method can neutralize the acidity of the soil, long-term application of lime and alkaline fertilizers will harden the soil, reduce soil permeability, and lead to soil compaction, which is not conducive to crop growth.

[0004] In summary, existing soil acidification remediation technologies mainly rely on the long-term application of lime and alkaline fertilizers. However, this technology easily leads to soil hardening, reduced soil permeability, and consequently soil compaction, severely restricting crop growth. Overcoming this technical problem has become a pressing issue in this field. Therefore, it is necessary to propose a soil acidification remediation device for planting that can neutralize soil acidity while preventing soil compaction. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a soil acidification improvement device for planting. Through the design of its mechanical structure, the device can uniformly fertilize the soil, neutralize soil acidity, and simultaneously dig trenches to loosen the soil, prevent soil compaction, and separate the already compacted soil and other impurities, thereby further improving soil quality and providing a good planting environment for subsequent planting work.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A soil acidification improvement device for planting includes an improvement liquid for improving soil quality, a controller, and a moving mechanism. A driving component is fixedly connected to the outer wall of the moving mechanism. A first gear is coaxially fixedly connected to the output shaft of the driving component. An eccentric rod is eccentrically fixedly connected to the side wall of the first gear. Hinged rods are symmetrically hinged on the eccentric rods. A mounting frame is hinged to the end of each hinged rod away from the eccentric rod. Each mounting frame is provided with a plurality of spraying components for spraying the improvement liquid. A screening component for screening loose soil and compacted soil is provided at the bottom of each mounting frame.

[0007] A bracket is also fixedly connected to the outer wall of the moving mechanism, and the bracket is located below the drive component; both ends of the bracket are fixedly connected to limit rods, and the limit rods are hinged to the adjacent mounting brackets. The bottom of the limit rods is fixedly connected to telescopic rods, and the bottom of the telescopic rods is equipped with digging components for trenching and loosening soil.

[0008] Above the first gear is a mixing component for mixing raw materials to prepare the amendment liquid; below the first gear is a conveying component for conveying the amendment liquid to the spraying component; the moving mechanism is also equipped with a soil compaction component for compacting the soil.

[0009] The controller is used to control the operation of the drive components, thereby driving the first gear to rotate and driving the mixing component, conveying component, spraying component and screening component to operate synchronously; the controller is also used to control the output distance of the telescopic rod, thereby controlling the digging depth of the digging component, and at the same time, according to the output distance of the telescopic rod, adjusting the output power of the drive components, thereby controlling the spraying amount of the improved liquid.

[0010] The technical principles of the above solution are as follows:

[0011] The operator moves the entire device in the field using the moving mechanism. During the movement of the moving mechanism, the limit rod moves synchronously and moves the digging component to perform ditching operations. At the same time, the controller starts the drive unit, and the output shaft of the drive unit drives the first gear to rotate. The first gear drives the eccentric rod to deflect around the axis of the first gear and drives the hinge rod to move back and forth. Since the mounting frame is hinged to the limit rod and the hinge rod, the reciprocating movement of the hinge rod will pull the mounting frame to swing back and forth on the limit rod.

[0012] When the first gear rotates, it also drives the mixing component to mix the raw materials, thereby preparing the amendment liquid. The mixing component transports the amendment liquid to the conveying component. When the first gear rotates, it also drives the conveying component to transport the amendment liquid to the spraying component. Since the spraying component is located on the mounting frame, the mounting frame will drive the spraying component to swing back and forth, thereby spraying the amendment liquid evenly on the field. At the same time, since the screening component is located at the bottom of the mounting frame, when the mounting frame swings back and forth, the screening component will also swing back and forth, thereby screening the soil.

[0013] During this process, the operator can adjust the operation of the telescopic rod and the drive component synchronously through the controller; the greater the output distance of the telescopic rod's output shaft, the greater the output power of the drive component.

[0014] The above approach has the following beneficial effects:

[0015] 1. In existing technologies, the pH value of acidic soil is mainly adjusted by applying lime and alkaline fertilizers. However, long-term application of lime and alkaline fertilizers can harden the soil, reduce its permeability, and lead to soil compaction, which is detrimental to crop cultivation. This invention, through the design of a mounting frame and limiting rods, sprays soil amendment liquid to neutralize soil acidity while simultaneously driving the excavation component to dig the soil, thereby loosening the soil, improving soil permeability, preventing soil hardening, effectively reducing the risk of soil compaction, and improving soil quality. Through the synchronous adjustment of the telescopic rod and drive component, the deeper the soil is excavated, the more amendment liquid is sprayed, ensuring a match between soil volume and fertilizer application, avoiding waste of amendment liquid and over-fertilization, thus improving the utilization rate of the amendment liquid and the soil improvement effect.

[0016] 2. In existing technologies, due to the fixed spraying angle of conventional spraying devices, operators often encounter uneven spraying of lime and alkaline fertilizers. This leads to incomplete fertilization coverage, leaving some soil areas acidic and negatively impacting the overall soil improvement effect. To address this issue, this invention utilizes a swingable mounting frame design to achieve uniform spraying of the soil amendment, improving the comprehensiveness of fertilization and effectively enhancing the soil improvement effect after fertilization.

[0017] 3. In the existing technology, if it is necessary to carry out the work of raw material mixing, fertilizer spraying, soil excavation and soil screening at the same time, multiple machines and multiple operators are required to complete the work. However, through the design of this invention, the work of raw material mixing, fertilizer spraying, soil excavation and soil screening can be integrated into the same machine. Through the design of the mechanical structure, multiple tasks can be carried out at the same time with only a single drive component, which greatly reduces the labor and equipment costs of soil improvement work and improves work efficiency.

[0018] Furthermore, the mixing assembly includes a mixing box fixedly connected to the outer wall of the moving mechanism, and a discharge cover is hinged to the side wall of the mixing box; a second gear meshes above the first gear, and a stirring shaft is coaxially fixedly connected to the side wall of the second gear. The stirring shaft passes through the side wall of the mixing box away from the moving mechanism and rotates with it. Several stirring blades are coaxially fixedly connected to the part of the stirring shaft located inside the mixing box.

[0019] Beneficial effects: By using the transmission of the first gear, the second gear can drive the stirring shaft and stirring blades to rotate, thereby uniformly stirring the raw materials to produce the modified liquid; with this design, the modified liquid can be prepared without additional driving components, effectively reducing the production cost of the device.

[0020] Furthermore, the conveying assembly includes a conveying box, a piston plate that slides vertically inside the conveying box, a piston rod that is hinged to the top of the piston plate, and the top of the piston rod that extends outside the conveying box and is hinged to an eccentric rod; a mixing box is connected to the conveying box, and a control valve is provided at the connection point between the two; a controller is used to control the operation of the control valve, thereby controlling the flow of the modified liquid.

[0021] Beneficial effects: Driven by the first gear, the piston rod and piston plate move up and down in the delivery box, which allows the delivery box to transport the soil amendment liquid to the spraying assembly, thereby spraying the amendment liquid evenly in the field and improving soil quality.

[0022] Furthermore, the screening assembly includes a fan-shaped screen fixedly connected to the bottom of the mounting frame; each screen is equipped with interception components for intercepting compacted soil.

[0023] Beneficial effects: When the mounting frame swings back and forth, it will drive the screen to swing back and forth. The screen can transfer soil onto the screen. When the screen swings back and forth, the compacted soil and impurities larger than the screen mesh will be intercepted by the screen, preventing them from contaminating the soil and thus further improving the soil quality.

[0024] Furthermore, the interception component includes tapered strips fixedly connected to the edge of the screen. The thickness of the tapered strips on the side away from the screen is less than the thickness of the tapered strips on the side closer to the screen; the thickness of the tapered strips on the side closer to the screen is greater than the thickness of the screen.

[0025] Beneficial effects: When the screen swings back and forth, the thinner side of the conical strip can better transfer soil into the screen, while the thicker side of the conical strip can prevent compacted soil and impurities larger than the screen mesh from falling off the screen edge, thus improving the screening effect of the screen.

[0026] Furthermore, the excavation assembly includes a baffle fixedly connected to the bottom of the telescopic rod output shaft; several excavating claws are fixedly connected to the bottom of the baffle.

[0027] Beneficial effects: Operators can adjust the output distance of the telescopic rod output shaft through the controller, thereby adjusting the height of the baffle and digging claw, enabling digging at different depths; the baffle can intercept compacted soil and larger impurities, making it easier for the screen to move compacted soil and larger impurities into the screen when it swings.

[0028] Furthermore, the spraying assembly includes several spray pipes fixedly connected to the side of the mounting frame away from the limiting rod, and each spray pipe is fixedly connected to an atomizing nozzle at the end away from the mounting frame; all spray pipes are connected to the delivery box.

[0029] Beneficial effects: The improved solution can be evenly sprayed into the field in the form of water mist through the spray pipe and atomizing nozzle, further improving the uniformity of spraying.

[0030] Furthermore, a protective frame for protecting the drive component, the first gear, and the second gear is fixedly connected to the outer wall of the moving mechanism, with the drive component, the first gear, and the second gear all located between the protective frame and the outer wall of the moving mechanism.

[0031] Beneficial effects: The protective frame can effectively shield the drive components, first gear, and second gear from additives and dust, thereby increasing the service life of the drive components, first gear, and second gear.

[0032] Furthermore, the soil compaction assembly includes a roller for compacting soil, with extension rods rotatably fitted on both sides of the roller, and the ends of the extension rods away from the rollers being fixedly connected to the protective frame.

[0033] Beneficial effects: As the device moves, the rollers roll on the soil surface, thus compacting the soil and restoring it to a flat state.

[0034] Furthermore, the raw materials for preparing the improved solution include lime, biochar, silicon-calcium-magnesium fertilizer, and wood ash.

[0035] Beneficial effects: Lime, calcium-silicon-magnesium fertilizer, and wood ash can directly increase soil pH and alleviate soil acidification by neutralizing hydrogen ions in the soil. Biochar has a porous structure and high specific surface area, which can adsorb hydrogen and aluminum ions in the soil, reducing their toxicity to crops. It also enhances the soil's water and fertilizer retention capacity, improves soil structure, and prevents compaction.

[0036] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0037] Figure 1 This is an isometric view of the soil acidification improvement device for planting according to the present invention.

[0038] Figure 2 This is a side view of the soil acidification improvement device and moving mechanism for planting according to the present invention.

[0039] Figure 3 This is a front cross-sectional view of the soil acidification improvement device for planting according to the present invention.

[0040] Figure 4 This is a side cross-sectional view of the screening component in the soil acidification improvement device for planting according to the present invention.

[0041] The reference numerals in the accompanying drawings of the instruction manual include: 1. Moving mechanism; 2. DC motor; 3. First gear; 4. Eccentric rod; 5. Hinge rod; 6. Mounting frame; 7. Bracket; 8. Limiting rod; 9. Telescopic rod; 10. Mixing box; 11. Discharge cover; 12. Second gear; 13. Stirring shaft; 14. Stirring blade; 15. Conveying box; 16. Piston plate; 17. Piston rod; 18. Control valve; 19. Screen; 20. Conical strip; 21. Baffle; 22. Digging claw; 23. Spraying pipe; 24. Protective frame; 25. Roller; 26. Extension rod. Detailed Implementation

[0042] The following detailed description illustrates the specific implementation method:

[0043] Example

[0044] like Figure 1 As shown, a soil acidification improvement device for planting includes an improvement liquid for improving soil quality, a controller, and a moving mechanism 1 (e.g., an agricultural tractor, agricultural tricycle, and agricultural tiller; in this embodiment, an agricultural tractor is selected). A drive component is bolted to the outer wall of the moving mechanism 1. In this embodiment, the drive component is a DC motor 2. A first gear 3 is bolted to the output shaft of the DC motor 2. An eccentric rod 4 is bolted to the side wall of the first gear 3. A hinge rod 5 is symmetrically hinged to the eccentric rod 4. A mounting frame 6 is hinged to the end of the hinge rod 5 away from the eccentric rod 4. Each mounting frame 6 is equipped with several spraying components for spraying the improvement liquid. A screening component for screening loose soil and compacted soil is provided at the bottom of each mounting frame 6.

[0045] like Figure 2 and Figure 3 As shown, a bracket 7 is bolted to the outer wall of the 4-moving mechanism 1. The bracket 7 is located below the DC motor 2. Limit rods 8 are bolted to both ends of the bracket 7. The limit rods 8 are hinged to the adjacent mounting frame 6. A telescopic rod 9 is bolted to the bottom of the limit rod 8. The bottom of the telescopic rod 9 is equipped with a digging component for digging trenches and loosening soil.

[0046] Above the first gear 3 is a mixing component for mixing raw materials to prepare the amendment liquid; below the first gear 3 is a conveying component for conveying the amendment liquid to the spraying component; the moving mechanism is also equipped with a soil compaction component for compacting the soil.

[0047] The controller is used to control the operation of the DC motor 2, which in turn drives the first gear 3 to rotate and drives the mixing component, conveying component, spraying component and screening component to operate synchronously; the controller is also used to control the output distance of the telescopic rod 9, which in turn controls the digging depth of the digging component, and at the same time adjusts the output power of the DC motor 2 according to the output distance of the telescopic rod 9, which in turn controls the spraying amount of the improved liquid.

[0048] like Figure 2 and Figure 3 As shown, the mixing assembly includes a mixing box 10 bolted to the outer wall of the moving mechanism 1, and a discharge cover 11 hinged to the side wall of the mixing box 10; a second gear 12 meshes above the first gear 3, and a stirring shaft 13 is coaxially bolted to the side wall of the second gear 12. The stirring shaft 13 passes through the side wall of the mixing box 10 away from the moving mechanism 1 and rotates with it. A number of stirring blades 14 are coaxially bolted to the part of the stirring shaft 13 located inside the mixing box 10.

[0049] Specifically, the operator opens the discharge cover 11, puts the raw materials into the mixing box 10, and closes the discharge cover 11. Since the first gear 3 and the second gear 12 mesh, when the output shaft of the DC motor 2 drives the first gear 3 to rotate, the first gear 3 will drive the second gear 12 to rotate, which in turn drives the stirring shaft 13 and the stirring blades 14 to rotate, thereby uniformly stirring the raw materials to prepare the improved liquid. The operator can adjust the total amount of raw materials according to the required soil area and irrigation depth.

[0050] like Figure 1 and Figure 3 As shown, the conveying assembly includes a conveying box 15, a piston plate 16 that slides vertically inside the conveying box 15, a piston rod 17 that is hinged to the top of the piston plate 16, and the top of the piston rod 17 that extends to the outside of the conveying box 15 and is hinged to the eccentric rod 4; a mixing box 10 is connected to the conveying box 15, and a control valve 18 is provided at the connection between the two; a controller is used to control the operation of the control valve 18, thereby controlling the flow of the modified liquid.

[0051] Specifically, by opening the control valve 18 through the controller, the improved liquid prepared in the mixing tank 10 will flow into the delivery tank 15 through the control valve 18; when the first gear 3 rotates, the first gear 3 will drive the eccentric rod 4 to deflect around the axis of the first gear 3, thereby driving the piston rod 17 and the piston plate 16 to move up and down in the delivery tank 15, thereby delivering the improved liquid in the delivery tank 15 to the spraying assembly.

[0052] like Figure 1 As shown, the screening assembly includes a fan-shaped screen 19 bolted to the bottom of the mounting frame 6; each screen 19 is equipped with an interception component for intercepting compacted soil.

[0053] Specifically, when the eccentric rod 4 deflects around the axis of the first gear 3, the eccentric rod 4 will drive the hinge rod 5 to move back and forth. Since the mounting frame 6 is hinged to the limiting rod 8 and the hinge rod 5, the reciprocating movement of the hinge rod 5 will pull the mounting frame 6 to swing back and forth on the limiting rod 8. When the mounting frame 6 swings back and forth, it will drive the screen 19 to swing back and forth. The reciprocating swing of the screen 19 can transfer soil to the screen 19. When the screen 19 swings back and forth, the compacted soil and impurities with a volume larger than the mesh of the screen 19 will be intercepted by the screen 19, preventing them from contaminating the soil and thus improving the soil quality.

[0054] like Figure 1 and Figure 4 As shown, the interception assembly includes a tapered strip 20 bolted to the edge of the screen 19. The thickness of the tapered strip 20 on the side away from the screen 19 is less than the thickness of the tapered strip 20 on the side closer to the screen 19; the thickness of the tapered strip 20 on the side closer to the screen 19 is greater than the thickness of the screen 19.

[0055] Specifically, when the screen 19 swings back and forth, the thinner side of the conical strip 20 can better insert into the bottom of the soil, thereby smoothly transferring the soil into the screen 19. Since the thickness of the thicker side of the conical strip 20 is greater than the thickness of the screen 19, it can prevent compacted soil and impurities larger than the mesh size of the screen 19 from detaching from the edge of the screen 19, thus improving the screening effect of the screen 19.

[0056] The excavation assembly includes a baffle 21 bolted to the bottom of the output shaft of the telescopic rod 9; several excavating claws 22 are bolted to the bottom of the baffle 21.

[0057] Specifically, the operator adjusts the output distance of the telescopic rod 9 output shaft through the controller, thereby adjusting the height of the baffle 21 and the digging claw 22, so as to dig at different depths; the baffle 21 can intercept compacted soil and larger impurities, so that when the screen 19 swings, it can move the compacted soil and larger impurities into the screen 19.

[0058] The spraying assembly includes several spray pipes 23 that are bolted to the side of the mounting frame 6 away from the limiting rod 8. The end of the spray pipes 23 away from the mounting frame 6 is fixedly bonded to an atomizing nozzle (not shown in the figure); the spray pipes 23 are all connected to the delivery box 15.

[0059] Specifically, when the amendment liquid in the delivery box 15 is delivered to the spray pipe 23 by the piston plate 16, the amendment liquid can be evenly sprayed into the field in the form of water mist through the spray pipe 23 and the atomizing nozzle, further improving the uniformity of spraying.

[0060] The outer wall of the moving mechanism 1 is bolted with a protective frame 24 for protecting the DC motor 2, the first gear 3 and the second gear 12. The DC motor 2, the first gear 3 and the second gear 12 are all located between the protective frame 24 and the outer wall of the moving mechanism 1. The soil compaction assembly includes a roller 25 for compacting soil. Both sides of the roller 25 are rotatably fitted with extension rods 26. The ends of the extension rods 26 away from the roller 25 are bolted to the protective frame 24.

[0061] Specifically, the protective frame 24 can effectively shield the DC motor 2, the first gear 3, and the second gear 12 from the amendment liquid and dust, thereby improving the service life of the DC motor 2, the first gear 3, and the second gear 12. At the same time, the protective frame 24 provides an installation position for the extension rod 26 and the roller 25. When the moving mechanism 1 moves, the roller 25 can compact the soil, so that the soil is restored to a flat state.

[0062] The raw materials for preparing the improved solution include lime, biochar, silicon-calcium-magnesium fertilizer, and wood ash.

[0063] Lime, calcium-silicon-magnesium fertilizer, and wood ash can directly increase soil pH and alleviate soil acidification by neutralizing hydrogen ions in the soil. Biochar, with its porous structure and high specific surface area, can adsorb hydrogen and aluminum ions in the soil, reducing their toxicity to crops; at the same time, biochar can also improve soil structure and enhance water and fertilizer retention capacity.

[0064] The specific implementation process is as follows:

[0065] by Figure 2 For example, firstly, the operator adds an appropriate amount of raw materials to the mixing box 10 according to the irrigation area and irrigation depth, and adjusts the output distance of the output shaft of the telescopic rod 9 through the controller.

[0066] by Figure 2 For example, after adjustment, the operator starts the moving mechanism 1, which moves the entire device to the left in the field. During the movement of the moving mechanism 1, the limit rod 8 will drive the digging claw 22 to move synchronously, thereby carrying out trenching operations, which makes it easier to spray the soil amendment liquid to the required irrigation depth and improve the soil amendment effect.

[0067] by Figure 3For example, the operator starts the DC motor 2 through the controller. The output shaft of the DC motor 2 drives the first gear 3 to rotate. The first gear 3 drives the eccentric rod 4 to deflect and drives the hinge rod 5 to move back and forth, causing the mounting frame 6 and the screen 19 to swing back and forth. When the eccentric rod 4 rotates to the left, the mounting frame 6 and the screen 19 swing to the left. When the eccentric rod 4 rotates to the right, the mounting frame 6 and the screen 19 swing to the right. During the swinging process, the screen 19 uses the conical strip 20 to shovel soil into the top of the screen 19. During the swinging and moving process of the screen 19, the soil inside the screen 19 is vibrated and screened, thereby separating the compacted soil and large-volume impurities from the loose soil and improving the soil quality.

[0068] by Figure 3 For example, when the first gear 3 rotates, the second gear 12 drives the stirring shaft 13 and stirring blades 14 to rotate, preparing the amendment liquid. The control valve 18 is opened to deliver the amendment liquid into the delivery box 15. When the first gear 3 rotates, the piston rod 17 and piston plate 16 deliver the amendment liquid in the delivery box 15 to the spray pipe 23. When the mounting frame 6 swings back and forth, it drives the spray pipe 23 to swing back and forth together, thereby spraying the amendment liquid evenly in the field. Combined with the atomization of the atomizing nozzle, the irrigation uniformity of the amendment liquid is greatly improved.

[0069] During this process, the greater the output distance of the telescopic rod 9, the greater the output power of the DC motor 2, the faster the rotation speed of the first gear 3, and the faster the movement frequency of the piston rod 17 and piston plate 16. This results in more soil amendment liquid being delivered from the delivery box 15 to the spraying pipe 23 per unit time, ensuring that the amount of amendment liquid sprayed matches the soil excavation depth. Simultaneously, the oscillation frequency of the mounting frame 6 also increases, allowing for more even spraying of the amendment liquid. Through the synchronous adjustment of the telescopic rod 9 and the DC motor 2, the deeper the soil excavation, the greater the amount of amendment liquid sprayed, and the faster the oscillation frequency of the mounting frame 6. This ensures that the soil excavation depth, fertilizer application rate, and spraying uniformity are matched, preventing waste of amendment liquid and soil deterioration due to over-fertilization, thereby improving the utilization rate of amendment liquid and the soil improvement effect.

[0070] by Figure 2 For example, when the moving mechanism 1 moves to the left, the roller 25 rolls on the soil surface, thereby compacting the soil and restoring it to a flat state.

[0071] In existing technologies, the pH value of acidic soil is mainly adjusted by applying lime and alkaline fertilizers. However, long-term application of lime and alkaline fertilizers can harden the soil, reduce soil permeability, and lead to soil compaction, which is detrimental to crop cultivation. This invention, through the design of the mounting frame 6 and the limiting rod 8, sprays soil amendment liquid to neutralize soil acidity while simultaneously using the digging claw 22 to excavate the soil, thereby loosening the soil, improving soil permeability, preventing soil hardening, and effectively reducing the risk of soil compaction. The soil is then sieved using the screen 19 to improve soil quality.

[0072] Through the design of its mechanical structure, this invention can simultaneously perform multiple tasks such as raw material mixing, fertilizer spraying, soil screening, soil excavation, and soil compaction using only a single DC motor 2, which greatly reduces the labor and equipment costs of soil improvement work and improves work efficiency.

[0073] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A soil acidification improvement device for planting, comprising a moving mechanism (1), characterized in that, It also includes a soil amendment liquid and a controller for improving soil quality. The outer wall of the moving mechanism (1) is fixedly connected to a drive component. The output shaft of the drive component is coaxially fixedly connected to a first gear (3). The side wall of the first gear (3) is eccentrically fixedly connected to an eccentric rod (4). A hinge rod (5) is symmetrically hinged on the eccentric rod (4). A mounting frame (6) is hinged to the end of the hinge rod (5) away from the eccentric rod (4). Several spraying components for spraying the soil amendment liquid are provided on the mounting frame (6). A screening component for screening loose soil and compacted soil is provided at the bottom of the mounting frame (6). The outer wall of the moving mechanism (1) is also fixedly connected to a bracket (7), which is located below the drive component; both ends of the bracket (7) are fixedly connected to limit rods (8), which are hinged to the adjacent mounting frame (6); the bottom of the limit rods (8) is fixedly connected to a telescopic rod (9), and the bottom of the telescopic rods (9) is provided with a digging component for digging trenches and loosening soil. A mixing component for mixing raw materials to prepare the improved liquid is provided above the first gear (3); a conveying component for conveying the improved liquid to the spraying component is provided below the first gear (3); a soil compaction component for compacting the soil is also provided on the moving mechanism (1); The controller is used to control the operation of the drive components, thereby driving the first gear (3) to rotate and driving the mixing component, conveying component, spraying component and screening component to operate synchronously; the controller is also used to control the output distance of the telescopic rod (9), thereby controlling the digging depth of the digging component, and at the same time, according to the output distance of the telescopic rod (9), adjusting the output power of the drive components, thereby controlling the spraying amount of the improved liquid.

2. The soil acidification improvement device for planting according to claim 1, characterized in that, The mixing assembly includes a mixing box (10) fixedly connected to the outer wall of the moving mechanism (1), and a discharge cover (11) hinged to the side wall of the mixing box (10); a second gear (12) meshes above the first gear (3), and a stirring shaft (13) is coaxially fixedly connected to the side wall of the second gear (12). The stirring shaft (13) passes through the side wall of the mixing box (10) away from the moving mechanism (1) and rotates with it. A number of stirring blades (14) are coaxially fixedly connected to the part of the stirring shaft (13) located inside the mixing box (10).

3. The soil acidification improvement device for planting according to claim 2, characterized in that, The conveying assembly includes a conveying box (15), a piston plate (16) that slides vertically inside the conveying box (15), a piston rod (17) that is hinged to the top of the piston plate (16), and the top of the piston rod (17) that extends to the outside of the conveying box (15) and is hinged to the eccentric rod (4); a mixing box (10) is connected to the conveying box (15), and a control valve (18) is provided at the connection between the two; a controller is used to control the operation of the control valve (18) and thereby control the flow of the modified liquid.

4. The soil acidification improvement device for planting according to claim 3, characterized in that, The screening assembly includes a fan-shaped screen (19) fixedly connected to the bottom of the mounting frame (6); each screen (19) is equipped with an interception component for intercepting compacted soil.

5. The soil acidification improvement device for planting according to claim 4, characterized in that, The interception component includes a tapered strip (20) fixedly connected to the edge of the screen (19). The thickness of the tapered strip (20) on the side away from the screen (19) is less than the thickness of the tapered strip (20) on the side close to the screen (19); the thickness of the tapered strip (20) on the side close to the screen (19) is greater than the thickness of the screen (19).

6. The soil acidification improvement device for planting according to claim 5, characterized in that, The excavation assembly includes a baffle (21) fixedly connected to the bottom of the output shaft of the telescopic rod (9); a number of excavating claws (22) are fixedly connected to the bottom of the baffle (21).

7. The soil acidification improvement device for planting according to claim 6, characterized in that, The spraying assembly includes several spray pipes (23) fixedly connected to the side of the mounting frame (6) away from the limiting rod (8). The end of each spray pipe (23) away from the mounting frame (6) is fixedly connected to an atomizing nozzle. Each spray pipe (23) is connected to the delivery box (15).

8. The soil acidification improvement device for planting according to claim 7, characterized in that, The outer wall of the moving mechanism (1) is fixedly connected to a protective frame (24) for protecting the drive component, the first gear (3) and the second gear (12). The drive component, the first gear (3) and the second gear (12) are all located between the protective frame (24) and the outer wall of the moving mechanism (1).

9. The soil acidification improvement device for planting according to claim 8, characterized in that, The soil compaction assembly includes a roller (25) for compacting soil, with extension rods (26) rotatably fitted on both sides of the roller (25), and the end of the extension rod (26) away from the roller (25) is fixedly connected to the protective frame (24).

10. The soil acidification improvement device for planting according to claim 9, characterized in that, The raw materials for preparing the improved solution include lime, biochar, silicon-calcium-magnesium fertilizer, and wood ash.