Soil improvement device for agricultural planting

Abstract

The invention belongs to the technical field of agricultural instruments, and particularly relates to a soil improvement device for agricultural planting, which comprises a loading frame, a traction connecting part, a walking wheel assembly, a coulter assembly, a fixing plate, a fertilizer spreading component, a special-shaped rib plate and a soil turning assembly, the traction connecting part is arranged at the front end of the loading frame and used for being detachably hinged to a traction arm of a power source, the walking wheel assemblies are arranged on the front side and the rear side of the bottom of the loading frame and used for supporting the whole device to stably advance along an operation path, and the coulter assembly is arranged at the bottom of the loading frame and used for ploughing and crushing soil. The fixing plate is arranged on the rear side of the top of the loading frame and used for evenly scattering fertilizer to the surface of the ploughed soil. According to the invention, synchronous operation of'spraying while ploughing 'can be realized, so that a liquid fertilizer can accurately permeate into a new scarified soil layer, the fertilizer can be more uniformly distributed in the soil, and the effect of improving the depth of the soil is achieved.

Description

Technical Field

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

[0002] Soil, as the material basis of agricultural production, directly affects crop growth, yield, and quality through its physical and chemical properties and fertility levels. In modern agricultural production, factors such as long-term intensive farming, excessive application of chemical fertilizers, and insufficient replenishment of organic matter have led to increasingly prominent problems such as soil compaction, destruction of soil aggregate structure, nutrient imbalance, and decreased microbial activity, severely restricting the sustainable development of agriculture. Therefore, carrying out scientific and efficient soil improvement operations to restore and improve soil quality has become an important direction for the research and development of modern agricultural equipment. For example, in severely compacted soils, greater tillage depth and stronger soil breaking capacity are required, while for initially loosened soils, excessive disturbance should be avoided. Currently, many equipment have fixed structures and limited tillage depth adjustment ranges, making it inconvenient to quickly adjust, maintain, or replace them according to specific operational needs, thus limiting their applicability under different power sources and diverse planting scenarios.

[0003] Traditional soil improvement operations typically employ a multi-step, multi-machine approach. This involves first tilling and breaking up the soil with rotary tillers or plows, then applying fertilizer (solid or liquid) manually or using fertilization equipment, and finally covering and leveling the soil with harrows and rollers. This segmented approach has significant drawbacks: First, repeated mechanical compaction damages the loose structure created by earlier tilling, exacerbating soil compaction. Second, if fertilizer (especially liquid fertilizer) applied to the surface is not promptly mixed with the topsoil, it is easily volatilized, lost, or leached by sunlight, wind, or rainwater runoff, resulting in low nutrient utilization and potential environmental pollution. Third, segmented operations require multiple machines and numerous manual operations, leading to cumbersome procedures, low efficiency, and high energy and labor costs. Therefore, integrating the above-mentioned operations into a single, synchronized process, and immediately applying fertilizer precisely into the moist and loose topsoil layer after soil tillage and quickly mixing and covering it, is the key to improving soil improvement effects and operational efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a soil improvement device for agricultural planting, which can realize the simultaneous operation of "tillage and spraying", so that liquid fertilizer can be accurately penetrated into the newly turned and loosened soil layer, making the fertilizer more evenly distributed in the soil and achieving the effect of deep soil improvement.

[0005] The specific technical solution adopted by this invention is as follows: A soil improvement device for agricultural planting includes a loading frame, a traction connection, a wheel assembly, a plow assembly, a fixing plate, a fertilizer spreading component, shaped ribs, and a soil turning assembly. The loading frame is used to install and fix the rigid support structure of each functional component. The traction connection is located at the front end of the loading frame and is used for detachable hinge connection with the traction arm of the power source. The wheel assembly is located on the front and rear sides of the bottom of the loading frame to support the stable movement of the entire device along the working path. The plow assembly is located at the bottom of the loading frame for tilling and breaking up the soil. The fixing plate is located on the loading frame. The top rear side of the frame is used to evenly spread fertilizer onto the tilled soil surface. The fertilizer spreading component is partially located on the upper surface of the fixed plate and partially located below the fixed plate. Its discharge port faces the tilled soil after the plow assembly has been operated. The irregularly shaped ribs are "L" shaped and are arranged sequentially along the crossbeam of the loading frame. The long end of the irregularly shaped ribs has a welding notch, which is welded to the crossbeam of the loading frame. The soil turning assembly is located at the bottom rear of the loading frame and is used to turn the plowed and fertilized soil and evenly distribute the fertilizer. The soil turning assembly and the plow assembly are arranged in a staggered manner.

[0006] In a preferred embodiment, the plow assembly includes a square tube fixed to the bottom of the loading frame, and a vertically arranged base plate. One side of the base plate is provided with a hanging plate, and the base plate is hung on the square tube by the hanging plate. The other side of the base plate is vertically provided with a central hook plate. The central hook plate has a slot near its lower end, and the opening of the slot faces the base plate.

[0007] In a preferred embodiment, the plow blade assembly further includes two main clamping plates arranged opposite each other and spaced apart. A locking block is provided between the two main clamping plates, and the two main clamping plates are fixed together by the locking block. The top of the main clamping plates extends vertically upward to form a secondary clamping plate, and the bottom of the main clamping plates also clamps and fixes plow teeth. When the middle hook plate is inserted between the main clamping plates and the secondary clamping plates, the locking opening engages precisely with the locking block within the space.

[0008] In a preferred embodiment, both the central hook plate and the secondary clamping plate have insertion holes on their surfaces. When the central hook plate is inserted between the main clamping plate and the secondary clamping plate, the central hook plate and the secondary clamping plate are assembled and fixed by inserting pins through the insertion holes. The plow blade assembly also includes a centrally recessed fixing seat and a U-shaped component. The recessed position of the fixing seat covers the central hook plate and the secondary clamping plate. The U-shaped component is snapped onto the square tube, and its two ends extend through the fixing seat and are locked and fixed by matching nuts.

[0009] In a preferred embodiment, the fertilizer spreading component includes a water tank mounted on a fixed plate and an upper pipe installed on the surface of the fixed plate. The water tank has a built-in water pump and is connected to the upper pipe via a pipeline. The water pump transports the liquid in the water tank to the upper pipe via the pipeline.

[0010] In a preferred embodiment, the fertilizer spreading component further includes a lower pipe disposed below the fixing plate, and a valve is also provided on the lower pipe. The fertilizer spreading component also includes a spraying pipe disposed laterally on the irregular rib plate, and the valve is connected to the spraying pipe through a pipeline. The irregular rib plate is provided with a first mounting hole adapted to the spraying pipe.

[0011] In a preferred embodiment, the soil-turning assembly includes a horizontally arranged rotating shaft and at least two buckets distributed around the axis of the rotating shaft. Several buckets are arranged in a ring array to form a soil-turning structure. The soil-turning structure is adapted to a certain number of irregularly shaped ribs. The short end of each irregularly shaped rib has a second mounting hole. A protruding frustum is provided at the axis of the soil-turning structure. The frustum is rotatably adapted to the second mounting hole. The rotating shaft passes through the axis of the soil-turning structure and is fixedly connected to the soil-turning structure. The rotating shaft and the soil-turning structure are jointly mounted on the irregularly shaped ribs. The soil-turning assembly also includes a drive motor. Both the output shaft and the rotating shaft of the drive motor are equipped with synchronous pulleys, which are connected by synchronous belt transmission. The drive motor is fixed to the bottom of a fixed plate.

[0012] In a preferred embodiment, the outer ring of the bucket is arc-shaped, with the apex of the arc bending inward to form a slit. An inlet is provided at the position of the slit. A partition is also provided inside the bucket to form a complete hopper. A separation plate for separating the space is also provided inside the bucket. Leakage holes are provided at the arc-shaped position of the bucket and on the separation plate. An outlet is provided on the side of the bucket facing the truncated cone.

[0013] In a preferred embodiment, the soil-turning structure and the plow blade assembly are arranged in an alternating pattern.

[0014] In a preferred embodiment, the wheel assembly includes a front wheel and a rear wheel. The front wheel is an adjustable guide wheel, and the rear wheel is a fixed-height load-bearing wheel. The two are arranged in a front-to-back manner along the working direction. When the front wheel is raised, the loading frame is in an inclined posture with the front higher than the rear.

[0015] The technical effects achieved by this invention are as follows: In this invention, a continuous operation unit integrating plowing, fertilizer spreading, and soil turning is constructed using a loading frame. This unit enables a single machine to complete deep soil turning, precise liquid fertilizer spraying, and immediate and uniform mixing of fertilizer and soil in one operation. First, after the plow turns over the working surface, the directional spraying system immediately covers the newly formed soil ridges with liquid fertilizer. Then, the hopper bag scoops up, spreads, and returns the fertilized soil. This continuous operation mode ensures that the fertilizer is deeply turned over and evenly mixed into the tillage layer before it is exposed to volatilization or loss. This solves the problem of low utilization rate caused by surface spreading of fertilizer in traditional segmented operations. At the same time, the forced mechanical mixing makes the fertilizer more evenly distributed in the soil, creating a nutrient-balanced growth environment for crop roots and fundamentally improving soil fertility utilization efficiency and improvement effect.

[0016] In this invention, the plow blade assembly forms a high-rigidity connection through multiple fixing and assembly of hanging plates, interlocking blocks, and U-shaped parts. This enables it to effectively suppress vibration and lateral displacement during heavy-load plowing, maintain consistent plowing depth and stable trajectory. This design facilitates independent disassembly, maintenance, or replacement, reducing usage and maintenance costs.

[0017] In this invention, the synergistic effect of the initial crushing by the plow blade and the secondary spreading by the soil turning assembly can effectively break up soil compaction, break up soil clods, and form a loose, breathable, and flat cover layer during the fall process. This avoids repeated soil compaction caused by multiple machines entering the field, achieving the effect of soil improvement. While improving work efficiency, it also achieves low disturbance to the soil ecology.

[0018] In this invention, the design of the adjustable front wheels makes the overall working angle adjustable, which can flexibly adjust the cutting angle between the plow blade and the turning assembly according to the degree of soil compaction and the required tillage depth. This allows the same equipment to adapt to different working scenarios from shallow loosening to deep soil improvement, significantly enhancing the equipment's versatility and terrain adaptability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 In this invention Figure 1 Another perspective structural diagram; Figure 3 This is a schematic diagram of the plow blade assembly structure in this invention; Figure 4 This is a schematic diagram of the combined structure of the substrate, plow teeth, and sub-clamping plate in this invention; Figure 5 This is a schematic diagram of the detached structure of the plow blade assembly in this invention; Figure 6 This is a schematic diagram of the installation cross-sectional structure of the bayonet and the card block in this invention; Figure 7 This is a schematic diagram of the separate structure of the fertilizer spreading component in this invention; Figure 8 This is a schematic diagram of the irregular rib plate and soil turning assembly in this invention; Figure 9 This is a schematic diagram of the separation structure of the irregular rib plate and the soil turning assembly in this invention; Figure 10 This is a cross-sectional schematic diagram of the soil-turning structure in this invention; Figure 11 This is a schematic diagram of the working state structure of the loading frame in this invention.

[0020] The attached diagram lists the components represented by each number as follows: 100. Loading frame; 200. Traction connection part; 300. Wheel assembly; 301. Front wheel; 302. Rear wheel; 400. Plow blade assembly; 401. Square tube; 402. Base plate; 403. Middle hook plate; 404. Bayonet; 405. Hanging plate; 406. Main clamping plate; 407. Clamping block; 408. Spacing; 409. Secondary clamping plate; 410. Insertion hole; 411. Plow teeth; 412. Fixing base; 413. U-shaped part; 500. Fixing plate; 600. Fertilizer spreading components; 601. Water tank; 602. Water pump; 603. Upper pipe; 604. Lower pipe; 605. Valve; 606. Spraying pipe; 607. Spraying pipe; 700. Irregular rib; 701. Welding notch; 702. First mounting hole; 703. Second mounting hole; 800. Soil turning assembly; 801. Rotating shaft; 802. Hopper bag; 803. Frustum; 804. Drive motor; 805. Synchronous pulley; 806. Synchronous belt; 807. Feed inlet; 808. Partition plate; 809. Separator plate; 810. Leakage hole; 811. Discharge outlet. Detailed Implementation

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0025] Please see the appendix Figures 1-11 As shown, this invention provides a soil improvement device for agricultural planting, including a loading frame 100, a traction connection 200, a wheel assembly 300, a plow assembly 400, a fixing plate 500, a fertilizer spreading component 600, a shaped rib plate 700, and a soil turning assembly 800. The loading frame 100 is a rigid support structure for installing and fixing each functional component. The traction connection 200 is located at the front end of the loading frame 100 and is used for detachable hinge connection with the traction arm of the power source. The wheel assembly 300 is located on the front and rear sides of the bottom of the loading frame 100 to support the stable movement of the entire device along the working path. The plow assembly 400 is located at the bottom of the loading frame 100 for tilling and breaking up the soil. The fixing plate 500 is... The fertilizer spreading component 600 is located on the top rear side of the loading frame 100 and is used to evenly spread fertilizer onto the surface of the tilled soil. Part of the fertilizer spreading component 600 is located on the upper surface of the fixed plate 500 and part is located below the fixed plate 500. Its discharge port 811 is directly facing the tilled soil after the plow assembly 400 has been operated. The irregular rib plate 700 is L-shaped and is arranged sequentially along the crossbeam of the loading frame 100. The long end of the irregular rib plate 700 has a welding notch 701 and is welded and fixed to the crossbeam of the loading frame 100 through the welding notch 701. The soil turning assembly 800 is located at the bottom rear of the loading frame 100 and is used to turn the soil after plowing and spreading fertilizer and evenly distribute the fertilizer. The soil turning assembly 800 and the plow assembly 400 are arranged in a staggered manner.

[0026] Based on the above structure, the plow assembly 400, fertilizer spreading component 600, and soil turning assembly 800, which are continuously arranged at the bottom of the loading frame 100, can jointly complete the three-stage operation of tillage, fertilization, and uniform soil covering after fertilization in an integrated process. This can avoid repeated disturbance of soil structure caused by traditional segmented operations, and ensure that fertilizer is accurately covered into the moist and loose topsoil at the optimal time, thereby improving the efficiency of fertilizer nutrient utilization and crop root development, and achieving soil improvement. Furthermore, the modular design of each component of the plow assembly 400, fertilizer spreading component 600, and soil turning assembly 800 facilitates individual maintenance or replacement. In addition, the loading frame 100 can be adapted to different operating scenarios according to various power sources such as tractors, electric traction platforms, and tracked power platforms.

[0027] Please see the appendix Figures 3-6 As shown, the plow assembly 400 includes a square tube 401 fixed to the bottom of the loading frame 100, and a vertically arranged base plate 402. A hanging plate 405 is provided on one side of the base plate 402, and the base plate 402 is hung on the square tube 401 via the hanging plate 405. A central hook plate 403 is vertically arranged on the other side of the base plate 402. A latch 404 is provided near the lower end of the central hook plate 403, with the opening of the latch 404 facing the opening of the base plate 402. Please refer again to the attached document. Figures 5-6 As shown, the plow blade assembly 400 also includes two main clamping plates 406 arranged opposite each other, with a spacing of 408 between them. A locking block 407 is provided between the two main clamping plates 406, and the two main clamping plates 406 are fixed together by the locking block 407. The top of the main clamping plate 406 extends vertically upward to form a secondary clamping plate 409. The bottom of the main clamping plate 406 also clamps and fixes the plow teeth 411. When the middle hook plate 403 is inserted between the main clamping plate 406 and the secondary clamping plate 409, the locking slot 404 is exactly engaged with the locking block 407 within the spacing 408.

[0028] Specifically, during the assembly of the plow blade assembly 400, the plow teeth 411 are first clamped and fixed at the bottom of the main clamping plate 406. Then, the locking block 407 is aligned with the locking slot 404 and inserted, so that the middle hook plate 403 forms a limiting position with the main clamping plate 406 and the secondary clamping plate 409. The interlocking structure of the two effectively suppresses the lateral displacement of the base plate 402 under vibration load, ensuring the consistency of tillage depth. Subsequently, the hanging plate 405 is hung on the square tube 401 to complete the rapid assembly. When the loading frame 100 moves, the plow teeth 411 cut into the soil, driving the soil to rise and turn along the plow surface, thereby forming continuous soil ridges and furrows, completing the initial tillage work, and providing an ideal working surface for the subsequent fertilizer spreading component 600 to spread fertilizer.

[0029] Please see the appendix Figures 5-6As shown, both the central hook plate 403 and the secondary clamping plate 409 have insertion holes 410 on their surfaces. When the central hook plate 403 is inserted between the main clamping plate 406 and the secondary clamping plate 409, the central hook plate 403 and the secondary clamping plate 409 are assembled and fixed by inserting pins through the insertion holes 410. The plow blade assembly 400 also includes a centrally recessed fixing seat 412 and a U-shaped part 413. The recessed position of the fixing seat 412 covers the central hook plate 403 and the secondary clamping plate 409. The U-shaped part 413 is stuck on the square tube 401, and its two ends extend through the fixing seat 412 and are locked and fixed by matching nuts.

[0030] Specifically, the recessed covering design of the fixing seat 412 and the fixing constraint of the U-shaped part 413 can greatly improve the overall rigidity of the plow assembly 400. Even if the pin is loose or 413 is loose, the fixing seat 412 can still hold the middle hook plate 403 and the secondary clamping plate 409 to prevent the whole assembly from coming off. This further enables the plow assembly 400 to maintain its deformation self-adaptation ability under high-frequency vibration and complex soil resistance, maintain controllable deformation during heavy-duty tillage, ensure that the tillage trajectory does not deviate, and has good durability and practicality.

[0031] Please see the appendix Figure 7 As shown, the fertilizer spreading component 600 includes a water tank 601 mounted on a fixed plate 500 and an upper pipe 603 installed on the surface of the fixed plate 500. The water tank 601 houses a water pump 602. The water tank 601 is connected to the upper pipe 603 via a pipe. The water pump 602 transports the liquid in the water tank 601 to the upper pipe 603 via the pipe. One end of the water pump 602 is connected to the water tank 601 via an internal pipe, and the other end is connected to the inlet of the upper pipe 603. The water pump 602 can pump the liquid from the water tank... The liquid stored in tank 601, such as fertilizer or pesticide, is pressurized and stably transported to the upper pipe 603 through pipelines. Subsequently, the pressurized liquid will flow at a constant speed along the upper pipe 603 and finally enter the lower pipe 604, ensuring the uniform distribution and efficient application of fertilizer or pesticide during spraying operations and ensuring continuous liquid delivery. Furthermore, a liquid level window can be added to the side of the water tank 601, and a pressure sensor is integrated into the side wall to provide real-time feedback on the liquid pressure in the pipeline and to control the start and stop of the water pump 602.

[0032] Please refer to the appendix again. Figure 7 As shown, the fertilizer spreading component 600 also includes a lower pipe 604 disposed below the fixed plate 500, and a valve 605 is also disposed on the lower pipe 604. The fertilizer spreading component 600 also includes a spraying pipe 606 disposed laterally on the irregular rib plate 700. The valve 605 is connected to the spraying pipe 606 through a pipeline. The irregular rib plate 700 is provided with a first mounting hole 702 adapted to the spraying pipe 606.

[0033] Specifically, the outlet holes on the spray pipe 606 are detachable and can be fitted with directional nozzles. Several directional nozzles are evenly distributed along the furrow. The directional nozzles adopt a fan-shaped atomization structure and are directly facing the exposed soil surface behind the working trajectory of the plow blade assembly 400. With the constant pressure output of the water pump 602, it can ensure that the water-fertilizer mixture covers the bottom and side walls of the furrow. The spray angle of the directional nozzles is adjustable within a range of ±15°, and the coverage width is 200mm-300mm, which is suitable for the width of the soil ridges formed by the plow blade assembly 400, which is conducive to expanding the uniform distribution of liquid fertilizer on the surface and inside of the soil ridges.

[0034] More specifically, the spraying pipe 606 is arranged transversely along the loading frame 100 and mounted on the irregular rib plate 700. Its nozzle faces the soil ridge or furrow turned by the plow assembly 400. The cooperation between the fertilizer spreading component 600 and the plow assembly 400 ensures that the spraying pipe 606 and the plow turning trajectory move forward together, realizing the synchronous operation of "till-till-spray". This allows the liquid fertilizer to accurately penetrate the newly turned and loosened soil layer, reducing surface runoff and volatilization losses.

[0035] Please refer to the appendix again. Figures 8-9 As shown, the soil turning assembly 800 includes a horizontally arranged rotating shaft 801 and at least two buckets 802 distributed around the axis of the rotating shaft 801. Several buckets 802 are arranged in a ring array to form a soil turning structure. The soil turning structure is adapted to the number of irregular ribs 700. The short end of the irregular rib 700 is provided with a second mounting hole 703. A protruding frustum 803 is provided at the axis of the soil turning structure. The frustum 803 is rotatably adapted to the second mounting hole 703. The rotating shaft 801 passes through the axis of the soil turning structure and is fixedly connected to the soil turning structure. The rotating shaft 801 and the soil turning structure are jointly mounted on the irregular rib 700. The soil turning assembly 800 also includes a drive motor 804. The output shaft of the drive motor 804 and the rotating shaft 801 are both equipped with synchronous pulleys 805. The two are connected by a synchronous belt 806. The drive motor 804 is fixed to the bottom of the fixed plate 500.

[0036] In this application, a pulley structure is used as the driving method to make the rotating shaft 801 rotate. Alternatively, a combination of sprocket and chain transmission method or any other transmission method in the prior art that can drive the rotating shaft 801 to rotate can be used instead, depending on the technical solution that can be achieved. No further details are provided here.

[0037] Specifically, the drive motor 804 drives the rotating shaft 801 to rotate at a constant speed via the synchronous pulley 805 and the synchronous belt 806. The bucket bag 802 rotates synchronously with the rotating shaft 801, performing a secondary operation on the newly turned soil ridges after the plow blade assembly 400 has opened the furrows. During the rotation, the bucket bag 802 continuously scoops up, spreads, and falls back onto the soil ridges, which can further break up the compacted soil structure and accelerate the penetration of liquid fertilizer into the cultivated layer.

[0038] Please refer to the appendix again. Figures 9-10 As shown, the outer ring of the bucket bag 802 is arc-shaped, and the apex of the arc is bent inward to form a cross-section. An inlet 807 is provided at the position of the cross-section. A partition 808 is also provided inside the bucket bag 802 to form a complete bucket chamber. A separation plate 809 for separating the space is also provided inside the bucket bag 802. A leakage hole 810 is provided on the arc surface of the bucket bag 802 and on the separation plate 809. An outlet 811 is provided on the side of the bucket bag 802 facing the truncated cone 803.

[0039] More specifically, after the plow assembly 400 completes the furrowing, its opening always faces the fresh soil ridges turned by the plow assembly 400. The feed inlet 807 of the bucket 802 precisely cuts into the newly exposed soil layer sprayed with fertilizer solution at the bottom of the furrow. The soil enters through the feed inlet 807. As the bucket 802 rotates, it grabs the wet and loose soil ridges from the soil ridges and mixes them inside the bucket 802. Because the inner wall of the bucket 802 is fixed with the separation plate 809, and there are drainage holes 810 on it and on the arc surface of the bucket 802, during the rotation, soil clods of different sizes are slowly released and fall under the action of gravity or centrifugal force, or the wet soil ridges are thrown along the arc surface to both sides of the furrow through the discharge port 811, so as to achieve uniform mixing of fertilizer and soil. In this process, the soil ridges are fully loosened and evenly covered on the furrow surface, forming a loose cover layer, achieving the effect of deep and uniform mixing of soil and fertilizer solution, thus improving soil structure and enhancing soil permeability and fertility. According to the above structure, the outer ring of the bucket bag 802 is arc-shaped, and the apex of the arc is bent inward to form a cut surface. At the same time, the feed inlet 807 is opened at the cut surface. When the plow assembly 400 turns up the soil ridge, it ensures that the bucket bag 802, when rotating with the shaft 801 to the soil-welcoming position, catches the exposed soil ridge. When rotating to the vertical position, it relies on gravity and centrifugal force to turn over and cover the soil that has been fertilized with liquid fertilizer onto the ground surface.

[0040] More specifically, the soil-turning structure and the plow blade assembly 400 are arranged in an alternating pattern. This allows the hopper bag 802 to precisely catch the raised soil ridges, further improving the soil and simultaneously completing the turning and burying.

[0041] Please refer to the appendix again. Figure 11 As shown, the wheel assembly 300 includes a front wheel 301 and a rear wheel 302. The front wheel 301 is an adjustable guide wheel, and the rear wheel 302 is a fixed-height load-bearing wheel. The two are arranged in front and behind along the working direction. When the front wheel 301 is raised, the loading frame 100 is in an inclined posture with the front higher than the rear.

[0042] Specifically, the front wheels 301 are raised, which can raise the front end of the device by 1° to 8°, allowing the plow blade assembly 400 and the soil turning assembly 800 to cut into the soil layer one by one, achieving better soil turning and uniform fertilization. Furthermore, the soil turning assembly 800 and the plow blade assembly 400 work together to ensure that the liquid fertilizer soaking depth in each furrow is consistent and the soil covering thickness is uniform.

[0043] Meanwhile, the fixed height design of the rear wheels 302 provides stable support for the device, preventing the overall center of gravity from shifting due to the lifting of the front, and ensuring stability when operating under different terrain conditions. When the device is operating on relatively flat land, the front wheels 301 can be adjusted to a lower position, allowing the plow assembly 400 and the soil turning assembly 800 to perform shallow operations at a smaller cutting angle, reducing damage to the original soil structure. In areas with compacted soil or requiring deep soil improvement, the front wheels 301 are raised to increase the cutting angle, allowing the plow assembly 400 and the soil turning assembly 800 to penetrate deep into the soil layer, fully mix and turn the soil, and improve the uniformity of the mixing of liquid fertilizer and soil. This height-adjustable design allows the soil improvement device to adapt to various soil conditions and operational needs, improving the flexibility and applicability of soil improvement in agricultural planting processes.

[0044] The working principle of this invention is as follows: First, the loading frame 100 is hinged to a power source such as a tractor through the traction connection 200 at the front end. Before operation, the height of the front wheels 301 is adjusted according to the target tillage depth and soil hardness so that the loading frame 100 presents the required tilted posture with the front higher and the rear lower. Subsequently, the loading frame 100 moves forward via the power source traction device, and the plow blade assembly 400 cuts into the soil first. Under the action of forward resistance, its plow teeth 411 scoop up, tear, and flip the soil along the plow surface and turn it over to the rear and upward, forming continuous soil ridges and furrows. While the plow blade assembly 400 is opening furrows forward, the water pump 602 in the water tank 601 is started, pressurizing the liquid fertilizer or pesticide solution and pumping it into the upper pipe 603 through the pipeline. After the flow rate is adjusted by the valve 605, it is delivered to the spraying pipe 606 that is horizontally mounted on the irregular rib plate 700. Fertilizer is immediately spread on the freshly turned bare soil ridges, furrow bottoms, and side walls. Since the spraying trajectory follows the plow blade, "spraying as you till" is achieved, so that the liquid fertilizer can directly contact and penetrate into the loose and moist topsoil before it evaporates or is lost. Finally, the sprayed soil ridges enter the working range of the soil turning assembly 800. The drive motor 804 drives the transverse rotating shaft 801 to rotate at a constant speed through the synchronous pulley 805 and synchronous belt 806. The bucket 802 fixed on the rotating shaft 801 rotates accordingly. When the bucket 802 rotates to the bottom, the inlet 807 on its arc-shaped outer ring surface scoops up the loose soil ridges that have been sprayed with liquid fertilizer. After the soil enters the bucket 802, as the bucket 802 continues to rotate upward, it is blocked and combed by gravity, centrifugal force, and the internal partitions 808 and separation plates 809. On the one hand, finer soil particles and liquid fertilizer can seep out through the holes 810 on the bucket 802 and separation plates 809; on the other hand, larger soil clods are lifted and tumbled inside the bucket 802. When the bucket 802 rotates to a specific angle, such as the top or the other side, the soil is finally thrown out through the outlet 811 and falls back into the furrow area. Based on the above, this application can achieve better deep mixing and uniformity of the soil, and the soil mixed with fertilizer is then evenly spread on the working surface to form a loose and flat covering layer, which is beneficial for subsequent crop planting and achieves soil improvement.

[0045] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A soil amendment device for agricultural planting, characterized in that: include A loading frame (100) is a rigid support structure for installing and fixing various functional components; A traction connection part (200) is provided at the front end of the loading frame (100) and is used for detachable hinge connection with the traction arm of the power source. The wheel assembly (300) is located on the front and rear sides of the bottom of the loading frame (100) and is used to support the entire device to move stably along the working path; A plow assembly (400) is located at the bottom of the loading frame (100) and is used to till and break up the soil. A fixing plate (500) is disposed on the top rear side of the loading frame (100); The fertilizer spreading component (600) is used to evenly spread fertilizer on the surface of the tilled soil. The fertilizer spreading component (600) is partially located on the upper surface of the fixed plate (500) and partially located below the fixed plate (500). Its discharge port (811) is directly facing the tilled soil after the plow assembly (400) has been operated. The irregular rib (700) is L-shaped and arranged sequentially along the crossbeam of the loading frame (100). The long end of the irregular rib (700) is provided with a welding notch (701) and is welded and fixed to the crossbeam of the loading frame (100) through the welding notch (701). The soil turning assembly (800) is located at the bottom rear of the loading frame (100) and is used to turn over the soil after plowing and spreading fertilizer and to evenly distribute the fertilizer. The soil turning assembly (800) and the plow blade assembly (400) are arranged in a staggered manner.

2. The soil improvement device for agricultural planting according to claim 1, characterized in that: The plow assembly (400) includes a square tube (401) fixed to the bottom of the loading frame (100) and a vertically arranged base plate (402). A hanging plate (405) is provided on one side of the base plate (402), and the base plate (402) is hung on the square tube (401) through the hanging plate (405). A central hook plate (403) is vertically arranged on the other side of the substrate (402). A slot (404) is provided near the lower end of the central hook plate (403), and the opening of the slot (404) faces the substrate (402).

3. A soil improvement device for agricultural planting according to claim 2, characterized in that: The plow assembly (400) also includes two main clamping plates (406) arranged opposite each other. The two main clamping plates (406) are arranged with a gap (408). A locking block (407) is provided between the two main clamping plates (406), and the two main clamping plates (406) are fixed together by the locking block (407). The top of the main clamping plate (406) extends vertically upward to form a secondary clamping plate (409). The bottom of the main clamping plate (406) also clamps and fixes plow teeth (411). When the middle hook plate (403) is inserted between the main clamping plate (406) and the secondary clamping plate (409), the latch (404) engages with the latch block (407) within the spacing (408).

4. A soil improvement device for agricultural planting according to claim 3, characterized in that: Both the middle hook plate (403) and the secondary clamping plate (409) have insertion holes (410) on their surfaces. When the middle hook plate (403) is inserted between the main clamping plate (406) and the secondary clamping plate (409), the middle hook plate (403) and the secondary clamping plate (409) are assembled and fixed by inserting a pin through the insertion hole (410). The plow assembly (400) also includes a centrally recessed fixing seat (412) and a U-shaped component (413). The recessed position of the fixing seat (412) covers the central hook plate (403) and the secondary clamping plate (409). The U-shaped component (413) is clamped on the square tube (401), and its two ends extend through the fixing seat (412) and are locked and fixed by a matching nut.

5. A soil improvement device for agricultural planting according to claim 1, characterized in that: The fertilizer spreading component (600) includes a water tank (601) mounted on a fixed plate (500) and an upper pipe (603) mounted on the surface of the fixed plate (500). The water tank (601) has a built-in water pump (602). The water tank (601) is connected to the upper pipe (603) through a pipeline. The water pump (602) transports the liquid in the water tank (601) to the upper pipe (603) through the pipeline.

6. A soil improvement device for agricultural planting according to claim 5, characterized in that: The fertilizer spreading component (600) also includes a lower pipe (604) disposed below the fixed plate (500), and a valve (605) is also disposed on the lower pipe (604). The fertilizer spreading component (600) also includes a spraying pipe (606) disposed laterally on the irregular rib plate (700), and the valve (605) is connected to the spraying pipe (606) through a pipeline. The irregular rib plate (700) is adapted to spray pipe (606) and has a first mounting hole (702).

7. A soil improvement device for agricultural planting according to claim 1, characterized in that: The soil turning assembly (800) includes a horizontally arranged rotating shaft (801) and at least two buckets (802) distributed around the axis of the rotating shaft (801), with several buckets (802) arranged in a ring array to form a soil turning structure; The soil turning structure is adapted to the number of irregular ribs (700). The short end of the irregular rib (700) is provided with a second mounting hole (703). The soil turning structure has a protruding frustum (803) at the axial position. The frustum (803) is rotatably adapted to the second mounting hole (703). The rotating shaft (801) passes through the axis of the soil turning structure and is fixedly connected to the soil turning structure. The rotating shaft (801) and the soil turning structure are jointly supported on the irregular ribs (700). The soil turning assembly (800) also includes a drive motor (804), on which synchronous pulleys (805) are installed on both the output shaft and the rotating shaft (801) of the drive motor (804), and the two are connected by a synchronous belt (806); the drive motor (804) is fixed to the bottom of the fixing plate (500).

8. A soil improvement device for agricultural planting according to claim 7, characterized in that: The outer ring of the bucket (802) is arc-shaped, and the vertex of the arc is bent inward to form a cross-section. An inlet (807) is provided at the position of the cross-section. A partition (808) is also provided inside the bucket (802) to form a complete bucket chamber. A separation plate (809) for separating the space is also provided inside the bucket (802). A leakage hole (810) is provided on the arc-shaped position of the bucket (802) and on the separation plate (809). The hopper (802) has a discharge port (811) on the side facing the truncated cone (803).

9. A soil improvement device for agricultural planting according to claim 7, characterized in that: The soil turning structure and the plow blade assembly (400) are arranged in an alternating pattern.

10. A soil improvement device for agricultural planting according to claim 1, characterized in that: The wheel assembly (300) includes a front wheel (301) and a rear wheel (302). The front wheel (301) is an adjustable guide wheel, and the rear wheel (302) is a fixed-height load-bearing wheel. The two are arranged in front and behind along the working direction. When the front wheel (301) is raised, the loading frame (100) is in an inclined posture with the front higher than the rear.

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