Soil layering improvement device for ecological restoration

Abstract

The utility model belongs to ecological restoration technical field especially relates to soil layering improvement device for ecological restoration, including support pad, the support pad's just below is provided with transmission plate, the lower surface of support pad is fixed with the outer sleeve, and the bottom of outer sleeve penetrates transmission plate and extends to below, the upper surface of support pad is fixed with the gas pipe that sends, and the bottom of gas pipe that sends penetrates support pad and extends to the inner chamber of outer sleeve and the plug-in cooperation of outer sleeve, the aeration pipe is slidably installed in the outer sleeve, and this device realizes fixed point soil loosening through high pressure air impact, airflow can penetrate the hardened soil and form loose area, and the soil loosening range is controllable, after the fertilizer is transported to the soil loosening area through special channel, secondary air pressure impact will it evenly spread to the deep soil in different directions, avoid the fertilizer surface layer accumulation, realize soil loosening and fertilization synchronous completion, improve layering improvement effect greatly, reduce nutrient loss.

Description

Technical Field

[0001] This utility model belongs to the field of ecological restoration technology, and in particular relates to a soil stratification and improvement device for ecological restoration. Background Technology

[0002] Soil improvement is a core component of ecological restoration. Good soil structure and balanced fertility provide ample space and nutrients for plant root growth, directly determining the success rate of ecological restoration. In scenarios such as mine revegetation and degraded land remediation, problems such as soil compaction, poor aeration, and uneven nutrient distribution are often encountered. It is necessary to improve soil conditions by combining loosening the soil with fertilization to achieve stratified improvement. This involves breaking up the surface compaction layer and precisely delivering fertilizer to the deeper soil layers to promote the downward extension of plant roots.

[0003] However, existing soil improvement methods have significant limitations: traditional soil loosening relies heavily on manual digging or large-scale mechanical tillage, resulting in low efficiency and uneven soil loosening depth, while large-scale machinery easily damages the original surface ecology; fertilization is mostly done by surface spreading or shallow burial, making it difficult for fertilizer to penetrate deep into the soil, easily washed away by rainwater, leading to waste and poor improvement effects; some integrated devices have complex structures and cumbersome operations, failing to achieve precise coordination between soil loosening and fertilization, and thus failing to meet the core requirements of stratified improvement, high efficiency and energy saving, and convenient operation in ecological restoration. Therefore, we propose a soil stratification improvement device for ecological restoration. Utility Model Content

[0004] The purpose of this invention is to provide a soil stratification and improvement device for ecological restoration, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A soil stratification and improvement device for ecological restoration includes:

[0007] A support plate is provided, and a transmission plate is provided directly below the support plate. An outer sleeve is fixed to the lower surface of the support plate, and the bottom end of the outer sleeve passes through the transmission plate and extends downward. An air supply pipe is fixed to the upper surface of the support plate, and the bottom end of the air supply pipe passes through the support plate and extends into the inner cavity of the outer sleeve to be inserted and engaged with the outer sleeve. An aeration pipe is slidably installed inside the outer sleeve. A connecting pipe is coaxially fixed to the top end of the aeration pipe, and the connecting pipe is inserted and installed in the lower part of the air supply pipe and is slidably engaged with the air supply pipe. An electrically controlled airtight valve is fixedly installed on the upper part of the air supply pipe.

[0008] The bottom end of the aeration pipe is provided with an aeration plug, and the circumferential sidewall of the aeration plug is provided with a plurality of aeration holes evenly distributed.

[0009] A fertilization mechanism is located at the lower part of the outer sleeve and is used to fertilize the soil;

[0010] A drive mechanism is provided between the support plate and the transmission plate, and is used to control the insertion of the aeration pipe and the aeration plug at the bottom of the aeration pipe into the soil.

[0011] Preferably, a tapered plug is fixedly installed at the bottom end of the aeration plug, and the tapered plug is coaxially arranged with the aeration plug.

[0012] Preferably, the fertilization mechanism includes:

[0013] The feeding pipe is fixedly installed on the outer circumferential wall of the lower part of the outer sleeve, and the feeding pipe is cut at an angle. The inlet of the feeding pipe is set upward. The aeration pipe has a fertilizer channel that matches the inner diameter of the feeding pipe on one side near the feeding pipe. Multiple feeding holes are opened on the aeration plug and located directly below the multiple aeration holes.

[0014] Preferably, the feeding hole is a long rectangular through hole, and the plurality of feeding holes are distributed at equal intervals around the circumference.

[0015] Preferably, a connecting sleeve is fixedly installed between the aeration plug and the aeration pipe, and a funnel-shaped guide hole adapted to the inner diameter of the aeration plug is provided in the connecting sleeve.

[0016] Preferably, the drive mechanism includes:

[0017] Two electric push rods are symmetrically arranged on both sides of the outer sleeve. The base of the electric push rod is fixed to the lower surface of the support plate, and the bottom end of the telescopic rod of the electric push rod is fixed to the upper surface of the transmission plate. A transmission block is symmetrically fixed to the lower surface of the transmission plate. The transmission block passes through the outer sleeve and is fixed to the outer circumferential wall of the aeration pipe.

[0018] Preferably, the outer circumferential wall of the aeration pipe is symmetrically provided with stroke grooves that can accommodate two transmission blocks for sliding, and the transmission blocks are slidably engaged with the stroke grooves.

[0019] Preferably, a protective base is fixed at the bottom of the outer circumference of the outer sleeve, and handrails are symmetrically fixed on the left and right sides of the support plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. High-pressure pneumatic soil loosening + precise fertilizer delivery solves the problems of uneven soil improvement and fertilizer waste: This device achieves targeted soil loosening through high-pressure air impact. The airflow can penetrate compacted soil to form loose areas, and the loosening range is controllable. After the fertilizer is transported to the loosening area through a dedicated channel, a secondary air pressure impact spreads it evenly to the deeper soil in different directions, avoiding fertilizer accumulation on the surface. This allows soil loosening and fertilization to be completed simultaneously, greatly improving the effect of stratified soil improvement and reducing nutrient loss.

[0022] 2. Mechanical drive insertion + integrated operation solves the problems of manual labor and low efficiency: The device is driven by an electric push rod to quickly insert into the soil without the need for manual digging, thus reducing the intensity of operation; the device integrates soil loosening and fertilization functions, and the operator only needs to hold the handle to complete the entire process of movement, positioning and improvement, without the need to frequently change tools. It is suitable for ecological restoration scenarios with different terrains and significantly improves work efficiency. Attached Figure Description

[0023] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a cross-sectional schematic diagram of the outer sleeve in this utility model;

[0026] Figure 3 This is a schematic diagram of the aeration mechanism in this utility model;

[0027] Figure 4 This is a schematic diagram of the aeration plug in this utility model.

[0028] The markings in the diagram are as follows:

[0029] 1. Support plate; 2. Transmission plate; 3. Outer sleeve; 4. Air supply pipe; 5. Aeration pipe; 6. Connecting pipe; 7. Electrically controlled airtight valve; 8. Aeration plug; 9. Connecting sleeve; 10. Conical plug; 11. Aeration hole; 12. Feeding hole; 13. Feeding pipe; 14. Fertilizer trough; 15. Electric push rod; 16. Transmission block; 17. Stroke chute; 18. Protective chassis; 19. Handrail. Detailed Implementation

[0030] This application provides a soil stratification and improvement device for ecological restoration, which effectively solves the problems of uneven soil loosening, easy fertilizer loss, laborious manual operation, and low work efficiency of traditional soil improvement equipment. Traditional devices are difficult to complete soil loosening and fertilization simultaneously, cannot accurately act on deep soil, and have poor adaptability to complex ecological restoration terrain, making it difficult to meet the needs of soil stratification and improvement in scenarios such as mine revegetation and degraded land management.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the overall concept of the embodiments of this application is as follows:

[0032] To address the shortcomings of existing technologies, this utility model adopts a combined design of basic support, mechanical drive insertion, high-pressure aeration and loosening, and precise air pressure fertilizer delivery. A portable operating frame is constructed with a support plate and handrail, and the improved components are quickly inserted into the soil using an electric push rod. Through a sealed and interconnected aeration channel and high-pressure airflow impact, compacted soil is broken up to form loose areas. With the addition of a dedicated fertilizer delivery channel and secondary air pressure fertilizer delivery, fertilizer is precisely diffused to deep loosening areas, taking into account ease of operation, accuracy of improvement, and high efficiency of operation, and meeting the needs of stratified improvement of soil at different depths.

[0033] The structure, installation method, connection relationship, and functional details of each part of this utility model are as follows, to ensure that those skilled in the art can fully implement it based on the following description:

[0034] I. Basic Support and Operation Module

[0035] 1. Support plate 1

[0036] The plate is rectangular and flat, with a length that matches the installation distance between the outer sleeve 3 and the electric push rod 15, and a width slightly larger than the diameter of the outer sleeve 3. A circular through hole matching the air supply pipe 4 is opened in the center of the plate, and mounting holes for the base of the electric push rod 15 are symmetrically opened on both sides. The edges of the plate are rounded, and the left and right sides are welded with fixing seats for the handrails 19. The handrails 19 are made of Q235 carbon structural steel with a thickness of 8-10mm and the surface is treated with sandblasting and rust removal + electrostatic spraying for corrosion protection. The plate is horizontally set at the top of the device as the overall load-bearing foundation. The air supply pipe 4 is fixed in the central through hole with bolts, the electric push rods 15 are symmetrically installed on both sides of the lower surface of the plate, and the handrails 19 are fixed to the fixing seats on the left and right sides of the plate.

[0037] Connection and function: It supports core components such as air supply pipe 4 and electric push rod 15, and is rigidly connected to the handle 19 through the fixed seat, providing the operator with a grip and movement fulcrum; the central through hole ensures that the air supply pipe 4 is vertically downward, providing precise guidance for subsequent airflow delivery and component sliding, and the mounting holes on both sides ensure that the electric push rod 15 is driven synchronously, avoiding force deviation.

[0038] 2. Handrail 19

[0039] It has a U-shaped tubular structure with flanges at both ends that are compatible with the fixed seats of the support plate 1. The middle of the tube is treated with anti-slip treatment and is made of aluminum alloy tube. The rubber anti-slip sleeve is made of nitrile rubber. It is symmetrically fixed on the fixed seats on the left and right sides of the support plate 1 and fixed by bolts and flanges. The tube extends horizontally outward and the height is suitable for the operator to hold while standing.

[0040] Connection and function: It is bolted to the support plate 1, and the anti-slip sleeve improves the grip comfort and stability; the operator can easily move the device to the target area by holding the handle 19 with both hands, and at the same time, it provides reaction force support when the component is inserted into the soil to prevent the device from tipping over and ensure operation safety.

[0041] 3. Protective chassis 18

[0042] It is in the shape of a circular flat plate with a diameter larger than the outer diameter of the outer tube 3, and a through hole in the center that is compatible with the outer tube 3. The lower surface of the plate is roughened and made of polyethylene plastic plate with a thickness of 5-6mm. It is horizontally fixed to the bottom of the outer circumference of the outer tube 3 and rigidly connected to the outer tube 3 by welding or clamping. The plate is parallel to the ground.

[0043] Connection relationship and function: It is fixedly connected to the outer tube 3 and moves synchronously with the outer tube 3; when the device is positioned, the protective base 18 is stably attached to the ground, ensuring that the outer tube 3 is perpendicular to the soil surface, providing a positioning reference for the precise insertion of the aeration plug 8; at the same time, it can avoid soil scratches caused by the outer tube 3 directly contacting the ground, protecting the surface ecology.

[0044] II. Driver Insertion Module

[0045] 1. Electric linear actuator 15

[0046] It has a cylindrical telescopic structure, including a motor, a telescopic rod and a metal shell. The top of the shell is equipped with a flange that fits the support plate 1, and the bottom of the telescopic rod is equipped with a pin seat that connects to the transmission plate 2. The motor is a DC servo motor with a rated load ≥500N. The shell is equipped with a waterproof connector and is made of aluminum alloy. The telescopic rod is made of chrome-plated carbon steel and is symmetrically arranged on both sides of the outer sleeve 3. The shell flange is fixed to the lower surface of the support plate 1 by bolts. The telescopic rod is vertically downward and the pin seat is rotatably connected to the ear plate on the upper surface of the transmission plate 2.

[0047] Connection and function: As the driving core, it is rigidly connected to the support plate 1 through the flange, and the telescopic rod and the transmission plate 2 are rotated together; after starting, the telescopic rod extends and retracts, driving the transmission plate 2 to move up and down, thereby pushing the subsequent components to insert or detach from the soil, eliminating the need for manual digging and greatly reducing the intensity of operation.

[0048] 2. Transmission plate 2

[0049] It is rectangular flat plate, with a length that matches the distance between the two electric push rods 15 and a width slightly larger than the diameter of the outer tube 3. A through hole matching the outer tube 3 is opened in the center of the plate. Ear plates matching the telescopic rods of the electric push rods 15 are welded on both sides of the upper surface. A transmission block 16 is symmetrically welded on the lower surface. It is made of Q235 carbon structural steel with a thickness of 6-8mm and the surface is treated with anti-corrosion. It is horizontally set below the support plate 1 and outside the outer tube 3. The ear plates are connected to the telescopic rods of the electric push rods 15 by pins. The transmission block 16 is embedded in the stroke groove 17 of the aeration pipe 5.

[0050] Connection and function: It receives the driving force of the electric push rod 15, and rotates and cooperates with the telescopic rod through the ear plate. The transmission block 16 on the lower surface is in sliding cooperation with the stroke groove 17. When the electric push rod 15 is driven, the transmission plate 2 moves up and down along the outer wall of the outer sleeve 3, which drives the transmission block 16 to push the aeration pipe 5 to move synchronously, so as to realize the stable transmission of power and ensure that the aeration pipe 5 is inserted vertically into the soil.

[0051] 3. Transmission block 16 and stroke groove 17

[0052] The transmission block 16 is a rectangular protrusion, the size of which is adapted to the stroke groove 17; the stroke groove 17 is a rectangular groove, the length of which is adapted to the insertion stroke of the aeration pipe 5. The transmission block 16 is made of Q235 steel, and the stroke groove 17 is made of stainless steel along with the aeration pipe 5. Both surfaces are polished. The transmission block 16 is symmetrically welded to the lower surface of the transmission plate 2, and the stroke groove 17 is symmetrically opened on the outer circumference of the aeration pipe 5. The positions of the two correspond one-to-one, and the transmission block 16 is completely embedded in the stroke groove 17.

[0053] Connection relationship and function: forming a sliding fit, the transmission block 16 moves axially along the stroke groove 17, restricting the radial rotation of the constant air tube 5, ensuring that the aeration tube 5 only slides up and down along the inner cavity of the outer sleeve tube 3; at the same time, it transmits the driving force of the transmission plate 2, preventing the aeration tube 5 from shifting during the insertion process, and ensuring the accuracy of the insertion depth and position.

[0054] 4. Outer tube 3

[0055] It has a tubular hollow structure, and its length is adapted to the insertion stroke of the aeration pipe 5. The inner diameter is slightly larger than the outer diameter of the aeration pipe 5. A protective base plate 18 is fixed to the lower circumferential outer wall of the pipe body. A fixed ear plate of the feeding pipe 13 is welded near the bottom end. It is made of 304 stainless steel with a wall thickness of 3-4mm to ensure the rigidity of the pipe body. It is vertically fixed below the support plate 1. The top end is welded or bolted to the lower surface of the support plate 1. The bottom end extends through the protective base plate 18 to the bottom. The pipe body, support plate 1, and protective base plate 18 are all coaxially arranged.

[0056] Connection relationship and function: It provides sliding guidance for the aeration pipe 5, limits the radial displacement of the constant air pipe 5, and ensures that it is inserted vertically into the soil; at the same time, it protects the aeration pipe 5 from external collision damage. The fixed ear plate at the bottom of the pipe provides the installation foundation for the feeding pipe 13, realizing the integration of the fertilization mechanism and the drive mechanism.

[0057] III. High-pressure aeration and soil loosening module

[0058] 1. Air supply pipe 4

[0059] It has a tubular structure with an interface at the top that is compatible with an external air supply mechanism. The bottom end passes through the central through hole of the support plate 1 and extends to the top of the outer sleeve 3. The lower part of the tube is hollow, with an inner diameter slightly larger than the outer diameter of the connecting tube 6. An electrically controlled airtight valve 7 is fixed on the upper outer side. It is made of stainless steel with a wall thickness of 4-5mm and is vertically fixed in the central through hole of the support plate 1. It is fixed to the support plate 1 by bolts, with the top interface facing upward and the bottom end facing downward, slidingly engaging with the connecting tube 6.

[0060] Connection and function: As the main delivery channel for high-pressure airflow, the top interface is connected to the external air delivery mechanism, and the bottom end forms a sealed sliding fit with the connecting pipe 6; the electrically controlled airtight valve 7 controls the airflow to ensure that the channel is sealed when the soil is not loose, and prevents impurities from entering.

[0061] 2. Connecting pipe 6

[0062] It has a tubular structure and a length suitable for connecting the air supply pipe 4 and the aeration pipe 5. The top end is inserted into the lower inner cavity of the air supply pipe 4 and the bottom end is welded and fixed to the top end of the aeration pipe 5. The outer diameter of the tube body is slightly smaller than the inner diameter of the air supply pipe 4 to ensure that it can slide up and down synchronously with the aeration pipe 5 without detaching from the air supply pipe 4. It is made of the same material as the air supply pipe 4 and has a wall thickness of 3-4mm. It is vertically installed between the air supply pipe 4 and the aeration pipe 5. The top end is embedded in the air supply pipe 4 and the bottom end is coaxially welded to the aeration pipe 5.

[0063] Connection and function: Connects the air supply pipe 4 and the aeration pipe 5 to form an airflow transition channel; as the aeration pipe 5 slides up and down, the top end moves synchronously inside the air supply pipe 4, always keeping the channel sealed and connected, ensuring that the high-pressure airflow is stably delivered to the aeration pipe 5, and avoiding air leakage that would affect the soil loosening effect.

[0064] 3. Aeration pipe 5

[0065] It has a tubular hollow structure, and its length is adapted to the length of the outer tube 3. The top end is welded and fixed to the connecting tube 6, and the bottom end is threaded to the connecting sleeve 9. The outer circumference of the tube body is symmetrically provided with stroke grooves 17, and an opening corresponding to the fertilizer channel 14 is provided near the bottom end. It is made of 304 stainless steel with a wall thickness of 3-4mm to ensure no deformation during high-pressure airflow transportation. It slides through the inner cavity of the outer tube 3. The top end is connected to the air supply pipe 4 through the connecting tube 6, and the bottom end extends to the bottom of the outer tube 3, forming a whole with the connecting sleeve 9 and the aeration plug 8.

[0066] Connection and function: It transmits high-pressure airflow to the aeration plug 8 and simultaneously carries the driving force of the transmission block 16, driving the aeration plug 8 to be inserted into the soil; the opening of the pipe body corresponds to the fertilizer channel 14, providing a channel for fertilizer to enter the aeration plug 8, realizing a shared channel for airflow and fertilizer, and simplifying the structural design.

[0067] 4. Aeration plug 8 and conical plug 10

[0068] The aeration plug 8 is cylindrical, with multiple aeration holes 11 evenly distributed on its circumferential sidewalls and a feeding hole 12 at the bottom; the conical plug 10 is conical and is coaxially welded and fixed to the bottom end with the aeration plug 8. The aeration plug 8 is made of stainless steel, and the conical plug 10 is made of hard alloy. The aeration plug 8 is threadedly connected to the bottom end of the aeration pipe 5 through the connecting sleeve 9. The conical plug 10 is located directly below the aeration plug 8 and is coaxially arranged as a whole.

[0069] Connection and function: The conical plug 10 penetrates the surface compacted soil, driving the aeration plug 8 to insert into the target depth; the high-pressure airflow is discharged instantly through the aeration hole 11, forming an air pressure impact to break up the surrounding compacted soil and achieve targeted soil loosening; the feeding hole 12 is used for fertilizer discharge, which, together with the secondary air pressure impact, diffuses the fertilizer into the loose soil and completes the stratified improvement.

[0070] 5. Electrically controlled airtight valve 7

[0071] It has an electromagnetic control valve structure, including a valve body, an electromagnetic coil and a sealing valve core. The two ends of the valve body are connected to the air supply pipe 4 and the external control line, respectively. The valve has a rated working pressure of ≥0.8MPa and is equipped with a manual emergency switch. The valve body is made of brass and the sealing valve core is made of nitrile rubber. It is fixedly installed on the upper outer side of the air supply pipe 4. The valve body and the air supply pipe 4 are connected. The control line is connected to the external controller.

[0072] Connection and function: Controls the on / off of high-pressure airflow in air delivery pipe 4, opens the valve to deliver airflow when loosening soil, and closes the valve before fertilization to ensure that fertilizer enters the channel smoothly; the electromagnetic control responds quickly and can accurately control the duration of airflow impact to meet the improvement needs of different soil compaction levels.

[0073] IV. Precision Fertilization Module

[0074] 1. Feeding pipe 13

[0075] It has a tubular structure with an inlet at one end and an outlet at the other end. The tube body is inclined. The inlet is equipped with a detachable cover plate made of polyethylene plastic with a wall thickness of 5-6mm. It is fixed to the outer circumferential wall of the lower part of the outer tube 3. The inlet extends upward to the outside of the device. The outlet is welded or bolted to the outer tube 3 by fixing ear plates, and the outlet corresponds to the position of the fertilizer channel 14.

[0076] Connection and function: As a dedicated channel for fertilizer dispensing, the inlet makes it convenient for operators to add fertilizer. The tilted pipe guides the fertilizer down to the fertilizer channel 14, preventing the fertilizer from scattering during the dispensing process and ensuring concentrated nutrient delivery.

[0077] 2. Fertilizer trough 14

[0078] It has a rectangular groove structure and is opened on the outer circumference of the aeration pipe 5 near the bottom. The width of the groove is adapted to the discharge port of the feeding pipe 13, and the depth of the groove is slightly larger than the diameter of the fertilizer particles. The two ends of the groove extend to the opening of the inner wall of the aeration pipe 5 and are integrally formed with the aeration pipe 5. The material is 304 stainless steel and the groove wall is smooth. It is opened on the outer circumference of the aeration pipe 5, corresponding to the position of the discharge port of the feeding pipe 13, and is always located below the stroke chute 17.

[0079] Connection and function: It receives the fertilizer conveyed by the feeding pipe 13, guides the fertilizer into the inner cavity of the aeration pipe 5 through the tank, and then enters the aeration plug 8 through the bucket-shaped guide hole of the connecting sleeve 9; the position design of the tank ensures that it always corresponds to the outlet of the feeding pipe 13 when the aeration pipe 5 slides up and down, so as to avoid interruption of fertilizer feeding.

[0080] 3. Connecting sleeve 9

[0081] It has a cylindrical sleeve structure, with the top end threaded to the bottom end of the aeration pipe 5 and the bottom end threaded to the aeration plug 8; the sleeve has a funnel-shaped guide hole inside, the inner wall of the guide hole is smoothed and made of polyethylene plastic, and is coaxially connected between the aeration pipe 5 and the aeration plug 8. The top end is screwed into the aeration pipe 5 and the bottom end is screwed into the aeration plug 8 to ensure that the inner cavities of the three are connected.

[0082] Connection and function: Connects aeration pipe 5 and aeration plug 8, and at the same time guides the fertilizer in aeration pipe 5 to aeration plug 8 through the funnel-shaped guide hole, so as to avoid fertilizer accumulation and blockage at the connection; the detachable design makes it easy to clean up residual fertilizer and adapts to the application needs of different types of soil amendments.

[0083] The working principle of this device is as follows:

[0084] This device, based on mechanical insertion, high-pressure soil loosening, and pneumatic fertilizer delivery, achieves soil stratification improvement through the coordinated operation of the drive mechanism, aeration components, and fertilization mechanism. The specific process is as follows:

[0085] 1. Equipment preparation and positioning:

[0086] The operator holds the handle 19 with both hands and moves the device to the target improvement area, so that the protective chassis 18 is stably attached to the ground and the outer sleeve 3 is perpendicular to the ground, providing a precise positioning foundation for subsequent insertion into the soil.

[0087] 2. Mechanical insertion into the soil:

[0088] When the electric push rods 15, which are symmetrically arranged on both sides, are activated, the telescopic rods of the electric push rods 15 extend and retract downwards, causing the transmission plate 2 to move downwards synchronously; the transmission block 16, which is fixed on the lower surface of the transmission plate 2, slides along the stroke groove 17, thereby pushing the aeration pipe 5 to move downwards along the inner cavity of the outer sleeve 3.

[0089] The aeration plug 8 and the conical plug 10 at the bottom of the aeration pipe 5 move down and penetrate the surface soil to the target improvement depth. At this time, the connecting pipe 6 slides out from the inside of the air supply pipe 4 but does not separate. The electrically controlled airtight valve 7 remains closed. The air supply pipe 4, the connecting pipe 6, the aeration pipe 5, the connecting sleeve 9 and the aeration plug 8 form a sealed and continuous channel.

[0090] 3. High-pressure pneumatic soil loosening:

[0091] Connect the electrically controlled airtight valve 7 to the external air supply mechanism, open the electrically controlled airtight valve 7, and the external high-pressure air quickly passes through the air supply pipe 4, flows through the connecting pipe 6 and the aeration pipe 5 in sequence, and finally enters the aeration plug 8.

[0092] High-pressure air is instantly discharged through multiple aeration holes 11 on the circumferential side wall of the aeration plug 8. Because the aeration holes 11 have a small diameter, the airflow creates a strong air pressure impact when it is ejected, which breaks up and loosens the compacted soil around the aeration plug 8, creating a loose environment for subsequent fertilization.

[0093] 4. Fertilizer application and precise delivery:

[0094] Close the electrically controlled airtight valve 7, and feed fertilizer into the device through the inclined feeding pipe 13. The fertilizer falls into the fertilizer channel 14 through the feeding pipe 13, and then enters the aeration plug 8 through the bucket-shaped guide hole in the connecting sleeve 9.

[0095] Open the electrically controlled airtight valve 7 again, and the external high-pressure air will once again impact the inside of the aeration plug 8, and the fertilizer will be evenly poured into the surrounding loosened soil through the multiple feeding holes 12 at the bottom of the aeration plug 8, so as to achieve precise layered delivery of fertilizer.

[0096] 5. Device reset and operation in the next area:

[0097] After fertilization, close the electrically controlled airtight valve 7 and the external air supply mechanism, start the electric push rod 15 in reverse, the telescopic rod retracts and drives the transmission plate 2, transmission block 16 and aeration pipe 5 to return to the upward reset, and the aeration plug 8 and the conical plug 10 detach from the soil.

[0098] The operator holds the handle 19 and moves the device to the next improvement area, repeating the above steps to continuously complete the soil stratification improvement operation.

[0099] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A soil stratification and improvement device for ecological restoration, characterized in that, include: A support plate (1) is provided with a transmission plate (2) directly below the support plate (1). An outer sleeve (3) is fixed on the lower surface of the support plate (1), and the bottom end of the outer sleeve (3) passes through the transmission plate (2) and extends downward. An air supply pipe (4) is fixed on the upper surface of the support plate (1), and the bottom end of the air supply pipe (4) passes through the support plate (1) and extends into the inner cavity of the outer sleeve (3) and is inserted into the outer sleeve (3). An aeration pipe (5) is slidably installed inside the outer sleeve (3). A connecting pipe (6) is coaxially fixed at the top end of the aeration pipe (5), and the connecting pipe (6) is inserted into the lower part of the air supply pipe (4) and is slidably fitted with the air supply pipe (4). An electrically controlled airtight valve (7) is fixedly installed on the upper part of the air supply pipe (4). The bottom end of the aeration pipe (5) is provided with an aeration plug (8), and the circumferential sidewall of the aeration plug (8) is provided with a plurality of aeration holes (11) evenly distributed. A fertilization mechanism is provided at the lower part of the outer sleeve (3) and is used to fertilize the soil; The drive mechanism is located between the support plate (1) and the transmission plate (2) and is used to control the insertion of the aeration pipe (5) and the aeration plug (8) at the bottom of the aeration pipe (5) into the soil.

2. The soil stratification and improvement device for ecological restoration according to claim 1, characterized in that, A tapered plug (10) is fixedly installed at the bottom of the aeration plug (8), and the tapered plug (10) is coaxially arranged with the aeration plug (8).

3. The soil stratification and improvement device for ecological restoration according to claim 1, characterized in that, The fertilization mechanism includes: Feeding pipe (13) is fixedly installed on the outer circumferential wall of the lower part of the outer sleeve (3), and the feeding pipe (13) is cut at an angle. The feed inlet of the feeding pipe (13) is set upward. The aeration pipe (5) has a fertilizer channel (14) that matches the inner diameter of the feeding pipe (13) on one side near the feeding pipe (13). The aeration plug (8) has multiple feeding holes (12) located directly below the multiple aeration holes (11).

4. The soil stratification and improvement device for ecological restoration according to claim 3, characterized in that, The feeding hole (12) is a long rectangular through hole, and the multiple feeding holes (12) are distributed at equal intervals around the circumference.

5. The soil stratification and improvement device for ecological restoration according to claim 4, characterized in that, A connecting sleeve (9) is fixedly installed between the aeration plug (8) and the aeration pipe (5), and a funnel-shaped guide hole adapted to the inner diameter of the aeration plug (8) is provided in the connecting sleeve (9).

6. The soil stratification and improvement device for ecological restoration according to claim 1, characterized in that, The drive mechanism includes: Two electric push rods (15) are symmetrically arranged on both sides of the outer sleeve (3). The base of the electric push rod (15) is fixed to the lower surface of the support plate (1), and the bottom end of the telescopic rod of the electric push rod (15) is fixed to the upper surface of the transmission plate (2). A transmission block (16) is symmetrically fixed to the lower surface of the transmission plate (2). The transmission block (16) passes through the outer sleeve (3) and is fixed to the outer circumferential wall of the aeration pipe (5).

7. The soil stratification and improvement device for ecological restoration according to claim 6, characterized in that, The aeration pipe (5) has symmetrical stroke grooves (17) on its outer circumference, which can accommodate two transmission blocks (16) to slide. The transmission blocks (16) and the stroke grooves (17) are in sliding cooperation.

8. The soil stratification and improvement device for ecological restoration according to claim 1, characterized in that, A protective base plate (18) is fixed at the bottom of the outer wall of the outer sleeve (3), and handrails (19) are symmetrically fixed on the left and right sides of the support plate (1).

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