Modular deep soil improvement system and soil improvement method thereof

Abstract

The invention provides a modularized deep soil improvement system and a soil improvement method thereof. The modularized deep soil improvement system structurally comprises a main body frame, a blade, a transmission plate, a filler container, rollers and walking wheels. Along with forward movement of the machine, the blade can perform deep ditching, under the action of thrust, soil enters the conveying plate and moves towards the upper rear portion, and when the soil moves to the highest point on the conveying plate, a ditch can be filled with a soil improvement material. The roller flatly paves the filling material filled in the ditch, so that the filling material is uniformly distributed in the deep layer of the soil; and the soil body finally slides into the ditch along with the descending of the transmission plate. The soil deep ditching, soil improvement material filling and soil backfilling are integrated, particularly disturbance to high-fertility surface soil is reduced, meanwhile, energy consumption is low, the soil improvement cost is reduced, the requirements for deep soil improvement, soil fertility improvement, soil profile configuration reconstruction and the like are met, and the method is suitable for large-scale popularization and application. The method can be widely applied to various soil improvement projects.

Description

[0001] This application is a divisional application. The original application was entitled "A Deep Soil Improvement Filler Device", with application number 202311464568.4 and application date of November 7, 2023. Technical Field

[0002] This invention relates to the field of soil improvement, and in particular to a deep soil improvement filling device that integrates three processes: deep trenching, filling with soil improvement materials, and backfilling. Background Technology

[0003] Soil improvement refers to a series of technical measures that employ corresponding physical, chemical, and biological methods to improve soil properties, enhance soil fertility, create favorable soil environmental conditions for crops, and increase crop yield and quality. Currently, my country's arable land suffers from infertility, an increasing proportion of low-yield fields, and some soils exhibit subsurface compaction, acidification, and salinization. To meet the needs of my country's food security and agricultural modernization, utilizing advanced equipment for soil improvement is particularly important. Chinese Invention Patent Publication No. CN217850024U discloses a fertilization device for soil improvement, comprising a moving frame, blocks, moving wheels, pull rods, handles, mounting frame, drive motor, tillage wheels, fertilizer box, mixing structure, feeding structure, discharge pipe, connecting rod, leveling roller, furrow opener, discharge port, connecting port, spiral feeding shaft, discharge port, mixing shaft, and mixing rod. The feeding structure is U-shaped, with a spiral feeding shaft inside. A discharge port is located at the bottom of the U-shape, connected to a connecting port. A driving device is installed between the symmetrically arranged feeding structures, with the driving ends on both sides of the device connected to the spiral feeding shaft. A leveling roller is hinged to the other side of the moving frame via a connecting rod. Four detachable wheels are connected to the bottom corners of the moving frame. The fertilizer box is funnel-shaped, with a partition in the middle, and is connected to the mounting frame surface by fastening nuts. The entire device is moved to the area of ​​land requiring fertilization using the wheels, then the wheels are removed. A drive motor then drives the tillage wheels, moving the entire moving frame across the land surface. During movement, the operator only needs to control the direction using the levers and handles. A drive motor moves the tillage wheel, which in turn moves the entire mobile frame across the land surface. Simultaneously, a drive unit drives the mixing shaft, which in turn drives the mixing rod to effectively mix the fertilizer inside the fertilizer tank. The drive unit then drives the screw feed shaft, which delivers the mixed fertilizer through a feeding port and connecting port via a feeding pipe to the discharge port located on the back of the furrow opener, thus completing the fertilization process. After passing through the furrow opener, the fertilized furrows are effectively leveled by leveling rollers. This invention integrates furrow opening and fertilization, solving the problems of complex traditional fertilization procedures. However, in practical application, it faces significant resistance, requires substantial manpower, and has low work efficiency. Furthermore, this device is only suitable for soil improvement on the soil surface, which has significant limitations.

[0004] Chinese invention patent publication number CN217936486U discloses an agricultural device for soil improvement, including a sowing and fertilizing machine body. A handle and a support are bolted to one side of the machine body. Both sides of the handle are threaded with mounting screws. A fixing plate is movably connected to one side of each mounting screw, and a connecting rod is fixedly connected to one side of the fixing plate. A support plate is fixedly connected to the other end of the connecting rod, and a rubber sleeve is movably connected to the outer surface of the connecting rod. A rope-retracting mechanism is provided on one side of the support. The rope-retracting mechanism includes a rope-retracting roller, a pull rope, a first fixing sleeve, a second fixing sleeve, a positioning screw, and a throttle. The rope-retracting roller is rotatably connected to one side of the support, and a pull rope is provided on the outer surface of the rope-retracting roller. The first and second fixing sleeves are fixedly connected to the side of the rope-retracting roller near the support. A positioning screw is threaded to one side of the first fixing sleeve, and a throttle is fixedly connected to the outer surface of the second fixing sleeve. Although this invention can perform sowing while improving the soil, it has significant limitations in soil improvement, only capable of surface soil improvement and sowing. At the same time, it is relatively labor-intensive and resource-intensive, and the friction between the machine and the soil is relatively large during use.

[0005] Chinese invention patent publication number CN217936445U discloses an agricultural soil improvement device. The upper side of the support is fixedly connected to the lower side of the square plate. The middle of the square plate is threadedly connected to a lead screw. The upper end of the lead screw is fixedly connected to the center of the turntable. The lower end of the lead screw is movably connected to the upper middle part of the U-shaped plate. The upper side of the U-shaped plate is fixedly connected to corresponding round rods. The two round rods pass through corresponding round holes, which are respectively set on the square plate. The two ends of the rotating rod are movably connected to the lower middle parts of the two sides of the U-shaped plate. A set of evenly arranged soil-turning blades are fixedly connected to the rotating rod. Pour an appropriate amount of soil conditioner into the tank. Adjust the position of a set of tilling blades according to the required tilling depth. Turn on motor one. Motor one drives the rotating rod to rotate, which in turn drives the set of tilling blades to rotate. At this time, rotate the turntable, which drives the lead screw to rotate. The lead screw drives the U-shaped plate to move downwards. The U-shaped plate drives the rotating rod and motor one downwards, so that the set of tilling blades rotates and moves downwards simultaneously, reaching the required tilling depth. Stop rotating the turntable, and then start motor two. Motor two drives the rotating roller to rotate. The groove on the rotating roller carries the soil conditioner falling from the tank. When the groove on rotating roller 1, carrying the soil conditioner, rotates to the lower side, the soil conditioner is discharged from the outlet, achieving a cyclical feeding process. Simultaneously, the rotating roller drives pulley 1 to rotate, which in turn drives pulley 2 via a belt. Pulley 2 then drives a corresponding wheel. Holding the U-shaped handle and pushing the device causes a set of wheels to rotate, moving the device. This makes moving the device easier and less strenuous, allowing it to simultaneously turn over the soil and apply the soil conditioner, thus better improving the soil. After turning over and applying fertilizer, motors 1 and 2 are turned off. This equipment combines force and electricity in use, and the operation is simple, but it cannot simultaneously perform the three processes of trenching, filling, and burying, and it causes significant disturbance to the surface soil.

[0006] Currently, when filling the subsurface layer of soil with soil amendment materials, the common practice is to peel off the topsoil, fill it with soil amendment materials, and then re-cover the removed soil. This process consumes a lot of time, manpower, and resources, and in particular, it disrupts the original soil profile and damages the fertile topsoil layer.

[0007] To address this, we have developed a soil improvement device that integrates three steps: deep trenching, soil amendment material filling, and soil backfilling. This device can be widely used for various soil improvement and fertilization scenarios, including subsurface soil compaction, soil acidification / alkalinization, and soil salinization. Summary of the Invention

[0008] To address the problems existing in the above-mentioned soil improvement process, this invention provides a deep soil improvement filling device, which can involve soil layers up to approximately 40 cm thick. This device can achieve deep soil improvement or fertilization with minimal disturbance to the surface soil, saving time and labor, and offering high work efficiency.

[0009] The technical solution adopted to achieve the above-mentioned objective is as follows: a deep soil amendment filling device, comprising a main frame, a blade, a transmission plate, a protective plate, a filling container, rollers, and traveling wheels. The main frame is composed of a tie rod, a crossbeam, a fixed rod, a rear crossbeam, and side beams. One end of the tie rod is provided with a hanging ring connected to a traction machine, and the other end is connected to the side beams. The left and right side beams are connected to the crossbeams and the rear crossbeam to form a rectangular frame structure. Traveling wheels and rollers are sequentially installed at the rear end of the frame structure, and the upper end is close to... The traveling wheels are symmetrically positioned with fixed rods, on which transmission plates and guard plates are installed. The guard plates are located on both sides of the transmission plate and together with the transmission plate form a transmission channel that is higher in the middle and lower at both ends. A filling container is installed on the upper end of the frame structure via a connecting rod. A conveying pipe with a valve is connected to the discharge port at the bottom of the filling container. The front end of the side beam is shaped like an angle iron, and the blade is installed on the angle iron at the front end of the side beam. The front ends of the transmission plate and guard plates are fixed to the angle iron at the front end of the side beam, and the rear ends are fixed to the rear end of the side beam.

[0010] Preferably, the blade tip is thin while the blade surface gradually thickens, and the blade is installed onto the side beam and crossbeam through the nut holes on both sides and the nut hole at the bottom.

[0011] Preferably, the tip of the blade is triangular.

[0012] Preferably, the transmission plate consists of a track, a transmission plate roller, a transmission plate fixing core, and a track fixing shaft. The front end of the track is placed inside the semi-circular arc of the crossbeam, the fixing core and the track fixing shaft are fixed on the guard plate, the track fixing shaft is clipped on the fixing rod, and the rear end of the track is fixed on the guard plate.

[0013] Preferably, the guard plate consists of a front guard plate, a rear guard plate, a wheel axle hole, a fixing nut hole, a connecting piece, a rubber guard plate, and a fixing hole.

[0014] Preferably, the packing container consists of a main packing container chamber, a connecting rod, a discharge port, a conveying pipe, and a valve.

[0015] Preferably, the packing container is detachable.

[0016] Preferably, the roller consists of a mounting knob, a compression rod, and a rolling wheel.

[0017] Preferably, the rolling wheel is cylindrical in shape and has protruding small cylinders.

[0018] Preferably, the traveling wheel consists of a wheel and a height adjustment core.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the device can realize the three steps of deep soil trenching, material filling and soil backfilling in one integrated manner, which saves time and is efficient. The design focuses on reducing resistance and frictional resistance, and the power consumption is small. During operation, it focuses on improving and conditioning the deep and subsurface soils, and causes less disturbance to the surface soil. Attached Figure Description

[0020] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which will help to understand the purpose and advantages of the present invention.

[0021] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention;

[0022] Figure 2 This is a structural diagram of the main frame;

[0023] Figure 3 This is a schematic diagram of the main frame beam structure;

[0024] Figure 4 This is a schematic diagram of the blade structure;

[0025] Figure 5 This is a cross-sectional view of the blade;

[0026] Figure 6 This is a schematic diagram of the conveyor belt structure;

[0027] Figure 7 This is a structural diagram of the protective plate;

[0028] Figure 8 This is a schematic diagram of the structure of a packed container;

[0029] Figure 9 This is a cross-sectional view of the packed container;

[0030] Figure 10 This is a schematic diagram of the roller structure;

[0031] Figure 11 This is a schematic diagram of the walking wheel.

[0032] Explanation of reference numerals in the attached drawings: 1-Main frame; 1-1-Hanging ring; 1-2-Tie rod; 1-3-Blade nut hole; 1-4-Crossbeam nut hole; 1-5-Guard plate nut hole; 1-6-Crossbeam; 1-6-1-Blade connection hole; 1-6-2-Crossbeam semicircle; 1-6-3-Crossbeam nut hole; 1-7-Fixing rod; 1-8-Rear crossbeam; 1-9-Side beam; 2-Blade; 2-1-Blade edge; 2-2-Side nut hole; 2-3-Bottom nut hole; 3-Transmission plate; 3-1-Crawler; 3-2-Transmission plate roller; 3-3-Transmission plate roller; 3-4-Track fixing core; 4-Guard plate; 4-1-Front end guard plate; 4-2-Rear end guard plate; 4-3-Wheel axle hole; 4-4-Fixing nut hole; 4-5-Connecting piece; 4-6-Rubber guard plate; 4-7-Fixing hole; 5-Filling container; 5-1-Main compartment of filling container; 5-2-Connecting rod; 5-3-Discharge port; 5-4-Feeding pipe; 5-5-Valve; 6-Roller; 6-1-Mounting button; 6-2-Compression rod; 6-3-Rolling roller; 7-Walking wheel; 7-1-Wheel; 7-2-Height adjustment core. Detailed Implementation

[0033] The structure and beneficial effects of a deep soil amendment filling device of the present invention will be further clearly and completely described below with reference to the accompanying drawings and specific implementation examples.

[0034] See Figures 1 to 11 The present invention provides a deep soil improvement filling device, including a main frame 1, a blade 2, a transmission plate 3, a protective plate 4, a filling container 5, a roller 6 and a traveling wheel 7. The main frame 1 is composed of a tie rod 1-2, a crossbeam 1-6, a fixing rod 1-7, a rear crossbeam 1-8 and a side beam 1-9. One end of the pull rod 1-2 is provided with a hanging ring 1-1 connected to the traction machine, and the other end is connected to the side beam 1-9. The side beams 1-9 on the left and right sides are connected to the cross beam 1-6 and the rear cross beam 1-8 to form a rectangular frame structure. The lower end of the frame structure is equipped with a traveling wheel 7 and a roller 6 in sequence. The upper end of the frame structure is symmetrically provided with a fixing rod 1-7 near the traveling wheel 7. The fixing rod 1-7 is equipped with a transmission plate 3 and a guard plate 4. The guard plate 4 is located on both sides of the transmission plate 3 and forms a transmission channel with a high middle and low ends with the transmission plate 3. The upper end of the frame structure is equipped with a filling container 5 through a connecting rod. The discharge port at the bottom of the filling container 5 is connected to a conveying pipe with a valve installed. The front end of the side beam 1-9 is in the shape of an angle iron. The blade 2 is installed on the angle iron at the front end of the side beam 1-9. The front ends of the transmission plate 3 and the guard plate 4 are fixed to the angle iron at the front end of the side beam 1-9, and the rear ends are fixed to the rear end of the side beam 1-9.

[0035] The blade tip 2-1 of the blade 2 is thin while the blade surface gradually thickens. The blade 2 is installed on the side beam 1-9 and the cross beam 1-6 through the nut holes 2-2 on both sides and the nut hole 2-3 at the bottom.

[0036] The tip of the blade 2 is triangular.

[0037] The transmission plate 3 is composed of a track 3-1, a transmission plate roller 3-2, a transmission plate fixing core 3-3, and a track fixing shaft 3-4. The front end of the track 3-1 is placed inside the semi-circular arc 1-6-2 of the crossbeam 1-6. The fixing core 3-3 and the track fixing shaft 3-4 are fixed on the guard plate 4. The track fixing shaft 3-4 is clamped on the fixing rod 1-7. The rear end of the track 3-1 is fixed on the guard plate 4.

[0038] The guard plate 4 consists of a front guard plate 4-1, a rear guard plate 4-2, a wheel axle hole 4-3, a fixing nut hole 4-4, a connecting piece 4-5, a rubber guard plate 4-6, and a fixing hole 4-7.

[0039] The filling container 5 consists of a main filling container 5-1, a connecting rod 5-2, a discharge port 5-3, a conveying pipe 5-4, and a valve 5-5.

[0040] The filling container 5 is detachable.

[0041] The roller 6 consists of a mounting button 6-1, a compression rod 6-2, and a rolling wheel 6-3.

[0042] The rolling wheel 6-3 is cylindrical in shape and has protruding small cylinders.

[0043] The walking wheel 7 consists of a wheel 7-1 and a height adjustment core 7-2.

[0044] To ensure sufficient trench depth, the height of both sides of the blade 2 is slightly greater than 40cm. To allow the soil to move smoothly from the blade to the conveyor plate, the front end of the crossbeam is connected to the blade, and the rear end is semi-circular for a tighter connection with the conveyor plate. To lift the cut soil, the front end of the conveyor plate is located within the semi-circular arc behind the crossbeam and is fixed to the main frame. As the device moves forward, the cut soil is lifted along the conveyor plate. To reduce resistance as the soil moves on the conveyor plate, a row of rollers is installed at the lower end of the conveyor belt. To minimize damage to the soil structure during backfilling, the rear end of the conveyor plate is sloping and can move up and down, filling the trench with soil without altering the original soil profile. To prevent soil particles from entering the gap between the guard plate and the conveyor belt, rubber protective plates are installed on the rear guard plate. To accommodate different soil amendment materials, the filling container is large enough to allow for timely replenishment from above. Depending on the needs, the filling material can be soil amendment agent, soil amendment material, organic material, organic fertilizer, chemical fertilizer, etc. To ensure smooth entry of the filling material into the trench, a drain pipe is installed at the lowest point of the container and leads into the trench. This drain pipe is equipped with a valve to control the amount of filling material entering the trench. To ensure even distribution of the filling material, the rollers spread it evenly after it enters the trench. The rollers have telescopic pressure rods that can be adjusted in height to accommodate different filling depths. To support the device and reduce frictional resistance between the device and the ground during operation, the wheels can be height-adjusted according to specific requirements.

[0045] The working principle of the deep soil improvement and filling device of the present invention is as follows: the hanging ring 1-1 of the main frame 1 can be connected to the front power unit to drive the entire equipment; the hanging ring 1-1 of the main frame connects the tie rod 1-2 to the power unit; the blade 2 is a trenching device, which is replaceable. After a certain period of use, the blade can be replaced with a new one to extend the service life of the equipment. Rubber protective plates 4-6 are installed on the rear guard plate 4-2 to prevent soil from falling through the gap between the conveyor belt and the guard plate. These are all adjustable devices. The filling container 5 is fixed to the main frame 1 by the connecting rod 5-2. The main chamber 5-1 of the filling container is filled with soil amendment material. After the cutting edge 2 makes a trench, the soil enters the conveyor plate 3. The soil filling material enters the trench from the discharge port 5-3 through the conveying pipe 5-4. A valve 5-5 is installed on the conveying pipe 5-4 to adjust the speed at which the filling material enters the trench. The roller 6 is installed on the rear crossbeam 1-8 of the main frame 1. The height can be adjusted according to the depth of the filling material to spread the filling material evenly in the trench. The wheels 6-1 of the traveling wheel 6 rotate on the ground when the machine is running to reduce resistance. The height can be adjusted with the machine by adjusting the core 6-2. After the soil at the front end of the conveyor plate reaches the highest point, it is lowered into the trench by the rear end of the conveyor belt to cover the filling material.

[0046] The present invention discloses the operating steps of a deep soil amendment filling device, specifically the steps for amending acidic soil with lime at a depth of 20cm:

[0047] (1) First, connect the hanging ring 1-1 on the main frame 1 of this equipment to the front power unit;

[0048] (2) Then the lime is loaded into the main compartment 5-1 of the filling container;

[0049] (3) Adjust the adjusting core 7-2 of the walking wheel 7 to a certain height;

[0050] (4) The power unit moves forward, and the cutting edge 2 performs trenching;

[0051] (5) The cut soil is pushed to the front end of the transmission plate 3 and moves backward;

[0052] (6) Open valve 5-5 of conveying pipe 5-4 to control the amount of lime entering conveying pipe 5-4 from outlet 5-3;

[0053] (7) The lime enters the ditch through the conveying pipe 5-4;

[0054] (8) Roller 6 spreads the lime that enters the ditch, so that the lime is evenly distributed in the ditch;

[0055] (9) After the soil is pushed to the highest point of the transmission plate 3, it enters the trench along the rear end of the transmission plate 3 to cover the lime, thus completing the lime soil improvement process.

[0056] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A modular deep soil reclamation system, characterized by, Comprise: The main body frame (1) is composed of a pull rod (1-2), a crossbeam (1-6), a fixed rod (1-7), a rear crossbeam (1-8) and a side beam (1-9), one end of the pull rod (1-2) is provided with a hanging ring (1-1) connected with a traction machine, the other end is connected with the side beam (1-9), the left and right side beams (1-9) are connected with the crossbeam (1-6) and the rear crossbeam (1-8) to form a rectangular frame body structure The walking wheel (7) is installed at the lower end of the main body frame (1) and is used for adjusting the ground clearance of the main body frame (1); The blade (2) is detachably installed on the angle iron at the front end of the side beam (1-9), the blade tip of the blade (2) is thin and the blade surface gradually thickens; The filler container (5) is detachably installed on the main frame (1) through a connecting rod and is used for containing soil improvement materials, the soil improvement materials include any one of soil improvement agents, soil improvement materials, organic materials, organic fertilizers and chemical fertilizers; The roller (6) is installed at the lower end of the main body frame (1) and is used for flattening the soil improvement materials after they enter the ditch, the height of the roller (6) can be adjusted to adapt to different filling depths; The soil temporary storage and backfilling mechanism is fixedly installed on the main frame (1) and located between the blade (2) and the walking wheel (7) and is used for temporarily storing the soil dug out by the blade (2) and then backfilling the soil; the soil temporary storage and backfilling mechanism includes a transmission plate (3) and a guard plate (4), the transmission plate (3) and the guard plate (4) constitute a transmission channel with high middle and low ends, the front end entrance of the transmission channel is located below the rear end of the blade (2), and the rear end outlet is suspended above the roller (6); the guard plate (4) is composed of a front end guard plate (4-1), a rear end guard plate (4-2), an axle hole (4-3), a fixed nut hole (4-4), a connecting piece (4-5), a rubber guard piece (4-6) and a fixed hole (4-7).

2. The modular deep soil improvement system of claim 1, wherein, The roller (6) includes a mounting button (6-1), a compression rod (6-2) and a rolling wheel (6-3), the rolling wheel (6-3) is cylindrical in shape and has a protruding small cylinder.

3. The modular deep soil conditioning system of claim 1, wherein, The walking wheel (7) includes a wheel (7-1) and a height adjustment core (7-2).

4. The modular deep soil improvement system of claim 1, wherein, The filler container (5) includes a filler container main bin (5-1), a connecting rod (5-2), a discharge port (5-3), a material conveying pipe (5-4) and a valve (5-5).

5. A method of soil improvement applied to a modular deep soil improvement system according to any one of claims 1-4, characterized in that, Comprise: S1: using a blade (2) with a specific shape to move forward, cutting a deep ditch in the soil, and guiding the cut soil to the transmission plate (3); wherein the blade tip of the blade (2) is thin and the blade surface gradually thickens to realize smooth movement of the soil from the blade to the transmission plate (3); S2: In the time period when the soil is lifted and the deep trench is exposed, the soil improvement material is filled into the bottom of the deep trench through the discharge port (5-3) at the bottom of the filling container (5) and the connected filling pipe (5-4), and the filling amount is controlled through the valve (5-5); S3: The filled soil improvement material is uniformly treated by the height-adjustable roller (6); S4: The soil lifted to the highest point of the transmission channel slides down along the rear end of the transmission plate (3) under the action of gravity and falls back into the deep trench, covering the filled soil improvement material.

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