A soil remediation device and method based on land reclamation planning

Abstract

The application relates to the technical field of soil remediation, and discloses a soil remediation device and method based on land consolidation planning. The application comprises a moving vehicle, a shell, a movable plate assembly, a plug rod, a rotating expansion mechanism, a remediation agent conveying system and a limiting reset mechanism; the plug rod is inserted into soil through hydraulic driving, a rotating plate is expanded to form a cavity by using a transmission mechanism, and the remediation agent is accurately injected into the deep layer of soil through the conveying system; and the limiting mechanism keeps the rotating plate in an expanded state to loosen the soil and improve the soil structure during lifting. The application realizes deep and uniform injection of the remediation agent, effectively avoids the loss and degradation problems caused by surface spraying, simultaneously has the function of soil loosening, greatly improves remediation efficiency and quality, and is suitable for large-scale land consolidation engineering.

Description

Technical Field

[0001] This invention relates to the field of soil remediation technology, and in particular to a soil remediation device and method based on land consolidation planning. Background Technology

[0002] Soil pollution and degradation are becoming increasingly prominent issues in land consolidation and ecological restoration. Currently, soil remediation is mainly divided into two categories: ex-situ remediation and in-situ remediation. Ex-situ remediation involves transferring contaminated soil to another location for treatment. While this method is more thorough, it is costly, involves large-scale engineering, and is prone to causing secondary pollution. In-situ remediation, on the other hand, is carried out directly at the contaminated site. It has advantages such as lower cost, simpler construction, and less disturbance to the soil and surrounding environment. Therefore, in-situ remediation is the preferred choice when pollution is not particularly severe.

[0003] However, existing in-situ remediation technologies still have significant limitations: remediation agents mostly rely on surface spraying or shallow mixing, which are easily affected by evaporation, rainfall runoff and ultraviolet radiation and become ineffective, making it difficult to accurately deliver them to deeper soil layers; uniform dispersion of remediation agents is often not achieved during the remediation process, resulting in remediation blind spots or uneven concentrations; at the same time, conventional injection or mixing operations cause significant damage to soil structure and may even cause compaction, which is not conducive to ecological restoration.

[0004] Therefore, there is an urgent need to develop equipment and methods that can be integrated into land consolidation planning, are applicable to in-situ remediation scenarios, and enable deep, uniform, and low-disturbance application of remediation agents, so as to improve the actual effect and applicability of in-situ remediation and support the efficient, green, and sustainable governance of contaminated sites. Summary of the Invention

[0005] The technical problem to be solved by this invention is the poor effect of surface spraying of remediation agents in the prior art. To address this, we propose a soil remediation device and method based on land consolidation planning.

[0006] To achieve the above objectives, this application adopts the following technical solution: a soil remediation device based on land consolidation planning, comprising a mobile vehicle and a shell; a remediation agent storage tank is installed at the rear of the mobile vehicle in the direction of movement, and an air pump connected to the remediation agent storage tank is also installed on the mobile vehicle; an adjusting arm is installed at the front of the mobile vehicle in the direction of movement, and the shell is installed on the output end of the adjusting arm. The outer shell is a semi-enclosed shell with an open bottom. Inside the shell, an upper movable plate and a lower movable plate are slidably connected, with the upper movable plate located above the lower movable plate. A hydraulic telescopic rod is installed on the inner wall of the top of the shell, and the output end of the hydraulic telescopic rod is connected to the upper movable plate. Insert rods are evenly distributed below the upper movable plate. The insert rods penetrate the lower movable plate downwards and extend below the lower movable plate. The bottom of the insert rod has a pointed end. The outer lower diameter of the insert rod is smaller than its middle diameter. Multiple sets of rotating plates are rotatably connected to the outer lower part of the insert rod. A sliding block is movably installed inside the insert rod. The insert rod has a rotating groove for the end of the rotating plate to rotate, a sliding groove for the sliding block to slide up and down, and radially distributed conveying channels. The sliding block is movably connected to the end of the rotating plate. One end of the conveying channel connects to the outside from the lower outer wall of the insertion rod, and the other end connects to the outside from the upper part of the insertion rod. A transmission mechanism is provided between the lower movable plate and the insertion rod. The transmission mechanism includes a rack fixedly installed on the top of the lower movable plate, a sliding rod slidably connected to the middle of the insertion rod, a slidably set toothed plate, and a spur gear rotatably connected. The bottom of the sliding rod is fixedly connected to the sliding block, the toothed plate is fixed to the top edge of the sliding rod, and the spur gear meshes with both the toothed plate and the rack. A return spring and a limiting mechanism are provided between the upper and lower movable plates. The limiting mechanism includes a movable groove that runs vertically through the upper movable plate and a limiting plate fixedly installed on the top of the lower movable plate. A limiting block is movably set inside the limiting plate, and a compression spring is provided between the limiting block and the limiting plate. A limiting locking plate corresponding to the limiting block is provided on the inner wall of the movable groove. An unlocking plug is installed on the inner wall of the top of the outer shell, and the unlocking plug and the limiting block are correspondingly set.

[0007] Preferably, the upper part of the insert rod is provided with an inner sliding groove, a gear groove and an outer sliding groove in sequence from the inside to the outside. The width of the outer sliding groove is adapted to the thickness of the rack, the width of the inner sliding groove is adapted to the thickness of the gear plate, and the depth of the gear groove is adapted to the radius of the spur gear. The rack is slidably connected in the outer sliding groove, the gear plate is slidably connected in the inner sliding groove, and the spur gear is rotatably connected in the gear groove.

[0008] Preferably, the upper part of the limiting plate is provided with a limiting groove that is horizontally connected to the outside. The length of the limiting groove is adapted to the length of the limiting block. The limiting block is slidably connected in the limiting groove and extends from the side of the limiting plate to the outside. The two ends of the compression spring are fixedly connected to the side wall of the limiting block and the inner wall of the limiting groove, respectively.

[0009] Preferably, the limiting block has a right-angled trapezoidal cross-section, the top of the limiting locking plate corresponds to the bottom section of the portion of the limiting block extending out of the limiting plate, and the thickness of the limiting locking plate is adapted to the length of the limiting block extending out of the limiting plate; one side of the bottom of the unlocking plug is a slope, and the portion of the limiting block located outside the limiting plate has a slope adapted to the slope of the unlocking plug, and the inclination angles of the two slopes are the same.

[0010] Preferably, the outer shell is provided with a main conveying pipe, the diameter of which is adapted to the outlet diameter of the repair agent storage box. The inner shell is provided with branch conveying pipes evenly distributed, the number of which is the same as the number of inserts. One end of each branch conveying pipe is connected to the main conveying pipe, and the other end is connected to the conveying channel of the insert.

[0011] Preferably, the inner wall of the remediation agent storage box is provided with an anti-corrosion coating to accommodate the storage of granular or liquid soil stabilizers; the output end of the air pump is connected to the top of the remediation agent storage box through an air pipe, and the remediation agent storage box, the main delivery pipe, the branch delivery pipes and the delivery channel together constitute the remediation agent delivery path.

[0012] Preferably, the module of the spur gear is consistent with the module of the gear plate and the rack, and the number of teeth of the spur gear is matched with the number of teeth of the gear plate and the number of teeth of the rack, so as to ensure stable meshing and transmission between the spur gear and the gear plate and the rack.

[0013] Preferably, a sealing sleeve is provided at the penetration point between the insertion rod and the lower movable plate. The sealing sleeve is made of wear-resistant rubber to prevent soil impurities from entering the mating gap between the insertion rod and the lower movable plate.

[0014] Preferably, the two ends of the return spring are welded and fixed to the bottom of the upper movable plate and the top of the lower movable plate, respectively, and the natural length of the return spring is adapted to the initial distance between the upper and lower movable plates.

[0015] This invention proposes another technical solution: a soil remediation method based on land consolidation planning, comprising the following steps: S1. Move the device to the area to be repaired using a mobile cart, and adjust the position of the housing using an adjusting arm; S2. Activate the hydraulic telescopic rod to push the upper and lower movable plates downward, so that the insertion rod is inserted into the soil; S3. After the lower movable plate touches the ground, the upper movable plate continues to move downwards. Through the meshing of the rack and spur gear, the toothed plate, sliding rod and sliding block move downwards, causing the rotating plate to expand and form a cavity; S4. Start the air pump to pressurize the remediation agent storage tank, so that the remediation agent is injected into the soil cavity through the delivery system and delivery channel; S5. The hydraulic telescopic rod drives the upper and lower movable plates to rise, and the limiting mechanism keeps the rotating plate in an expanded state to loosen the soil. S6. When the upper movable plate rises to contact the inner wall of the top of the outer shell, the unlocking block presses the inclined surface of the limiting block to retract it into the limiting groove, and the reset spring pushes the distance between the upper and lower movable plates to increase, and the rotating plate retracts.

[0016] The technical effects and advantages of this invention are as follows: In this invention, by setting up an insert rod with an expandable rotating plate, a transmission mechanism, and a limiting mechanism, the remediation agent is accurately injected and evenly diffused into the deep soil layer. After the insert rod penetrates the soil under hydraulic drive, the rotating plate unfolds to form a cavity, and the remediation agent is directly injected through the internal flow channel, effectively avoiding the problems of evaporation loss and ultraviolet degradation caused by surface spraying. This invention, through its design of maintaining the expansion state of the rotating plate during the ascent, simultaneously completes the soil loosening operation when leaving the soil, significantly improving soil aeration and permeability. This ensures both the full reaction of the remediation agent with the soil and avoids damage to the soil structure caused by secondary tillage, greatly improving remediation efficiency and quality. It is particularly suitable for large-scale land consolidation projects. Attached Figure Description

[0017] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the outer shell structure of the present invention; Figure 3 This is an exploded view of the outer shell, hydraulic telescopic rod, upper movable plate, and lower movable plate of the present invention. Figure 4 This is a schematic diagram of the hydraulic telescopic rod, upper movable plate, and lower movable plate of the present invention; Figure 5 This is a front view of the upper movable plate, lower movable plate, and insert rod structure of the present invention; Figure 6 This is a cross-sectional view of the upper movable plate, lower movable plate, and limiting mechanism of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at point A in the middle; Figure 8 This is a schematic diagram of the insertion rod and transmission mechanism of the present invention; Figure 9 This is an exploded view of the insertion rod, rotating plate, and transmission mechanism of the present invention; Figure 10 This is a front-view structural cross-sectional view of the insertion rod of the present invention; Figure 11 This is a three-dimensional angle half-section view of the insertion rod of the present invention.

[0018] Legend: 1. Mobile vehicle; 11. Repair agent storage tank; 12. Air pump; 13. Adjusting arm; 2. Outer shell; 21. Main delivery pipe; 22. Branch delivery pipe; 3. Hydraulic telescopic rod; 4. Upper movable plate; 5. Lower movable plate; 6. Insert rod; 61. Rotating groove; 62. Sliding groove; 63. Delivery channel; 64. Gear groove; 65. Outer sliding groove; 66. Inner sliding groove; 67. Sliding rod; 68. Sliding block; 69. Tip; 7. Rotating plate; 8. Transmission mechanism; 81. Gear plate; 82. Spur gear; 83. Rack; 9. Limiting mechanism; 91. Movable groove; 92. Limiting plate; 93. Limiting groove; 94. Limiting block; 95. Compression spring; 96. Limiting locking plate; 97. Unlocking insert; 10. Return spring. Detailed Implementation

[0019] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0020] Reference Figures 1-11 As shown, the present invention provides a technical solution: a soil remediation device based on land consolidation planning, comprising a mobile vehicle 1 and a shell 2. The mobile vehicle 1 serves as the carrier of the entire device and can easily move the device to the area to be remediated.

[0021] like Figure 1 As shown, a remediation agent storage tank 11 is installed at the rear of the mobile vehicle 1 in the direction of movement. It is used to store the remediation agent to be injected into the soil, such as granular or liquid soil stabilizer. In order to ensure that the remediation agent can be delivered smoothly, an air pump 12 connected to the remediation agent storage tank 11 is also installed on the mobile vehicle 1. The air pump 12 is connected to the remediation agent storage tank 11 and is used to pressurize the inside of the remediation agent storage tank 11 so that the remediation agent can be delivered through the delivery pipe under pressure. An adjusting arm 13 is installed at the front of the mobile vehicle 1 in the direction of movement. The adjusting arm 13 can adjust the position and angle of the outer shell 2 according to actual needs to adapt to different terrains and remediation depth requirements.

[0022] like Figures 2-5As shown, the outer shell 2 is a semi-enclosed shell with an open bottom. An upper movable plate 4 and a lower movable plate 5 are slidably connected inside the outer shell 2, with the upper movable plate 4 located above the lower movable plate 5. A hydraulic telescopic rod 3 is installed on the top inner wall of the outer shell 2. The output end of the hydraulic telescopic rod 3 is connected to the upper movable plate 4. Through its telescopic movement, the insertion, expansion, loosening, and extraction of the insertion rod 6 are realized. Insertion rods 6 are evenly distributed below the upper movable plate 4, and the insertion rods 6 penetrate downward through the lower movable plate 5 and extend to below the lower movable plate 5. The insertion rods 6 are used to pierce the soil and deliver the soil solidification stabilizer into the soil.

[0023] like Figures 9-10 As shown, to facilitate insertion into the soil, the bottom of the insertion rod 6 is provided with a pointed part 69. The outer lower diameter of the insertion rod 6 is smaller than its middle diameter to prevent the insertion rod 6 from bulging due to the increased thickness of the rotating plate 7. The outer lower part of the insertion rod 6 is rotatably connected to the rotating plate 7. Multiple sets of rotating plates 7 are radially distributed. One end of the rotating plate 7 is located inside the insertion rod 6. The insertion rod 6 is provided with a rotating groove 61 for the end of the rotating plate 7 to rotate. The insertion rod 6 is also provided with a sliding groove 62. A sliding block 68 is slidably connected to the sliding groove 62. The sliding block 68 is movably connected to the end of the rotating plate 7. When the sliding block 68 slides inside the sliding groove 62, it can drive multiple sets of rotating plates 7 to rotate and expand. The insertion rod 6 is also radially distributed with a conveying channel 63. One end of the conveying channel 63 is connected to the outside from the lower outer wall of the insertion rod 6, and the other end is connected to the outside from the top of the insertion rod 6, forming a complete remediation agent delivery channel.

[0024] The outer shell 2 is provided with a main delivery pipe 21. One end of the main delivery pipe 21 is connected to the remediation agent storage tank 11. Branch delivery pipes 22 are evenly distributed inside the outer shell 2. One end of the branch delivery pipe 22 is connected to the main delivery pipe 21, and the other end of the branch delivery pipe 22 is connected to the delivery channel 63. The air pump 12 pressurizes the inside of the remediation agent storage tank 11, causing the soil solidification stabilizer inside the remediation agent storage tank 11 to enter the delivery channel 63 through the main delivery pipe 21 and the branch delivery pipe 22. When the rotating plate 7 expands, it is injected into the soil. Compared with the existing technology, it can prevent the soil solidification stabilizer from being directly sprayed on the soil surface and affected by ultraviolet radiation, evaporation, etc. In actual operation, the air pump 12 pressurizes the remediation agent storage tank 11. Under the action of pressure, the remediation agent enters the delivery channel 63 of the insertion rod 6 through the main delivery pipe 21 and the branch delivery pipe 22, and is finally injected into the soil cavity from the lower outer wall of the insertion rod 6.

[0025] like Figures 8-11As shown, a transmission mechanism 8 is provided between the lower movable plate 5 and the insertion rod 6. From the inside out, the upper part of the insertion rod 6 has an inner sliding groove 66, a gear groove 64, and an outer sliding groove 65 arranged sequentially. The transmission mechanism 8 includes a rack 83 fixedly installed on the top of the lower movable plate 5, which is slidably connected inside the outer sliding groove 65. It also includes a sliding rod 67 slidably connected to the middle of the insertion rod 6. The bottom of the sliding rod 67 is fixedly connected to a sliding block 68, and a toothed plate 81 is fixedly connected to the top edge of the sliding rod 67. The toothed plate 81 is slidably disposed inside the inner sliding groove 66 and the gear groove 64. A spur gear 82 is rotatably connected, and the spur gear 82 meshes with the toothed plate 81 and the rack 83. When the upper movable plate 4 and the lower movable plate 5 move downward, after the lower movable plate 5 touches the ground and can no longer move, the upper movable plate 4 drives the insert rod 6 to continue to move downward, causing the gap between the lower movable plate 5 and the upper movable plate 4 to decrease. This causes the rack 83 to mesh with the spur gear 82 and rotate, which in turn causes the toothed plate 81, the sliding rod 67 and the sliding block 68 to move downward. This causes the rotating plate 7 to open up during the downward movement, forming a hollow area, which facilitates the application of soil solidification stabilizer into the soil.

[0026] like Figures 6-7As shown, a return spring 10 is provided between the upper movable plate 4 and the lower movable plate 5. A limit mechanism 9 is also provided between the upper movable plate 4 and the lower movable plate 5. The limit mechanism 9 is used to lock the distance between the upper movable plate 4 and the lower movable plate 5 during the process of the hydraulic telescopic rod 3 driving the upper movable plate 4, the lower movable plate 5 and the insertion rod 6 to reset, keeping the rotating plate 7 in the open state. This allows the rotating plate 7 on the insertion rod 6 to lift the soil, which loosens the soil. In this way, during subsequent irrigation, the water can evenly dilute the soil solidification stabilizer below, allowing the soil solidification stabilizer to react with the soil and preventing water runoff on the soil surface, which would affect the uniformity of its repair. The limit mechanism 9 includes a through-hole device installed at the top and bottom. The movable groove 91 on the upper movable plate 4 also includes a limiting plate 92 fixedly installed on the top of the lower movable plate 5. A limiting groove 93, horizontally communicating with the outside, is provided above the interior of the limiting plate 92. A limiting block 94 is slidably connected inside the limiting groove 93. The limiting block 94 extends from the side of the limiting plate 92. A compression spring 95 is provided between the limiting block 94 and the inner wall of the limiting groove 93. The cross-section of the limiting block 94 is a right-angled trapezoid. The limiting mechanism 9 also includes a limiting locking plate 96 fixedly installed on the inner wall of the movable groove 91. The top of the limiting locking plate 96 corresponds to the bottom section of the portion of the limiting block 94 extending from the limiting plate 92. The limiting mechanism 9 also includes a limiting locking plate 96 installed inside the top of the outer casing 2. The unlocking block 97 of the wall has a sloped bottom side. The corresponding limiting block 94 has a sloped part located outside the limiting plate 92. The unlocking block 97 and the limiting locking plate 96 are staggered to avoid the limiting locking plate 96 from blocking the unlocking block 97. After the hydraulic telescopic rod 3 moves the upper movable plate 4, the lower movable plate 5 and the plug rod 6 downwards for a certain distance, the plug rod 6 enters the soil. The lower movable plate 5 is blocked by the ground and stops moving downwards. The upper movable plate 4 and the plug rod 6 continue to move downwards under the push of the hydraulic telescopic rod 3. The rotating plate 7 expands. The limiting block 94 moves to the top of the limiting locking plate 96 under the elastic force of the compression spring 95. At this time, the upper movable plate 4 and the lower movable plate 96 are separated. When the distance between plates 5 is at its minimum, and the hydraulic telescopic rod 3 drives the upper movable plate 4, the lower movable plate 5 and the insert rod 6 to reset upwards, the limit locking plate 96 blocks the limit block 94, and the distance between the upper movable plate 4 and the lower movable plate 5 remains at its minimum. The rotating plate 7 is still in the expanded state, and when it rises, it can break up the soil. When the hydraulic telescopic rod 3 drives the upper movable plate 4 to move upwards until the upper movable plate 4 contacts the inner wall of the top of the outer shell 2, the unlocking insert 97 presses the inclined surface of the limit block 94, causing the limit block 94 to reset and retract into the limit groove 93. Under the action of the reset spring 10, the distance between the upper movable plate 4 and the lower movable plate 5 increases, and the rotating plate 7 resets from the expanded state to the contracted state.

[0027] The present invention also provides a soil remediation method based on the above-mentioned soil remediation device, comprising the following steps: S1. Move the device to the area to be repaired using the mobile vehicle 1, and adjust the position of the outer casing 2 using the adjusting arm 13; Before the remediation work begins, the operator first transports the entire soil remediation device to the specific area that needs to be remediated using the mobile vehicle 1. After arriving at the target area, the operator precisely adjusts the insertion position and angle of the outer shell 2 using the adjusting arm 13 according to the extent and depth of soil pollution and the terrain characteristics, to ensure that the insertion rod 6 is in contact with the ground surface. S2. Activate the hydraulic telescopic rod 3 to push the upper movable plate 4 and the lower movable plate 5 downward, so that the insertion rod 6 is inserted into the soil; After the position is adjusted, start the hydraulic telescopic rod 3; the hydraulic telescopic rod 3 extends downward, driving the upper movable plate 4 connected to it to move downward; the downward movement of the upper movable plate 4 will simultaneously drive the lower movable plate 5 and the insertion rod 6 to move downward; the design of the tip 69 at the bottom of the insertion rod 6 helps it to pierce the soil smoothly, inserting the entire insertion rod 6 into the preset soil depth. S3. After the lower movable plate 5 touches the ground, the upper movable plate 4 continues to move downwards. Through the meshing of the rack 83 and the spur gear 82, the toothed plate 81, the sliding rod 67 and the sliding block 68 move downwards, causing the rotating plate 7 to expand and form a cavity. When the insertion rod 6 is inserted into the soil to a certain depth, and the lower movable plate 5 contacts the ground or encounters significant resistance and stops moving downward, the hydraulic telescopic rod 3 continues to push the upper movable plate 4 downward. At this time, the distance between the upper movable plate 4 and the lower movable plate 5 begins to decrease. Since the rack 83 is fixed on the lower movable plate 5, and the toothed plate 81 is fixed on the sliding rod 67 that moves with the upper movable plate 4, the spur gear 82 meshes with both the rack 83 and the toothed plate 81. The relative downward movement of the upper movable plate 4 drives the spur gear 82 to rotate, which in turn drives the toothed plate 81, the sliding rod 67, and the sliding block 68 to move downward. The downward movement of the sliding block 68, through its movable connection with the rotating plate 7, causes the radially distributed multiple sets of rotating plates 7 to expand outward, forming a cavity inside the soil for injecting the remediation agent. At the same time, the limiting block 94 in the limiting mechanism 9 pops out under the action of the compression spring 95 and locks into the upper movable plate 4 and the lower movable plate 5 at the minimum distance, ensuring that the rotating plate 7 continues to expand. S4. Start the air pump 12 to pressurize the remediation agent storage tank 11, so that the remediation agent is injected into the soil cavity through the delivery system and the delivery channel 63; After the cavity is formed, the air pump 12 on the mobile vehicle 1 is started; the air pump 12 pressurizes the inside of the remediation agent storage tank 11, so that the granular or liquid remediation agent stored therein enters the delivery channel 63 inside the insert rod 6 under pressure through the main delivery pipe 21 and the branch delivery pipe 22; the remediation agent is finally sprayed out from the lower outlet of the delivery channel 63 and evenly injected into the soil cavity formed by the expansion of the rotating plate 7, so as to achieve deep and precise application of the remediation agent; S5. The hydraulic telescopic rod 3 drives the upper movable plate 4 and the lower movable plate 5 to rise, and the limiting mechanism 9 keeps the rotating plate 7 in an expanded state to loosen the soil. After the remediation agent is injected, the hydraulic telescopic rod 3 reverses its movement and retracts upward, causing the upper movable plate 4 and the lower movable plate 5 to move upward as a whole, starting to pull the insertion rod 6 out of the soil. During this process, since the limiting mechanism 9 has locked the upper movable plate 4 and the lower movable plate 5 at the minimum distance, the rotating plate 7 remains in the expanded state. Therefore, when the insertion rod 6 moves upward with the expanded rotating plate 7, the rotating plate 7 will agitate and cut the surrounding soil, effectively loosening the compacted soil, increasing the soil porosity, improving the soil structure, and facilitating the further penetration and diffusion of subsequent water and remediation agent. S6. When the upper movable plate 4 rises to contact the top inner wall of the outer shell 2, the unlocking block 97 presses the inclined surface of the limiting block 94 to retract it into the limiting groove 93, the reset spring 10 pushes the gap between the upper movable plate 4 and the lower movable plate 5 to increase, and the rotating plate 7 retracts. As the hydraulic telescopic rod 3 continues to retract upwards, causing the upper movable plate 4 to rise to its top and contact the inner wall of the top of the outer casing 2, the unlocking plug 97 installed on the inner wall of the top of the outer casing 2 will precisely contact and press against the inclined surface of the limiting block 94. Since the inclined surfaces of the unlocking plug 97 and the limiting block 94 are adapted, the pressing action will overcome the elastic force of the compression spring 95, causing the limiting block 94 to retract inwards into the limiting groove 93, thereby releasing the lock on the upper movable plate 4 and the lower movable plate 5. Once the lock is released, the elastic force of the reset spring 10 will immediately take effect, pushing the distance between the upper movable plate 4 and the lower movable plate 5 back to its initial larger state. As the distance between the two movable plates increases, the sliding block 68 moves upwards, driving the rotating plate 7 to retract from the expanded state to the retracted state, completing a complete repair cycle and preparing for the next insertion operation.

[0028] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A soil remediation device based on land consolidation planning, characterized in that, It includes a mobile vehicle and a housing; a repair agent storage tank is installed at the rear of the mobile vehicle in the direction of movement, and an air pump connected to the repair agent storage tank is also installed on the mobile vehicle; an adjusting arm is installed at the front of the mobile vehicle in the direction of movement, and the housing is installed on the output end of the adjusting arm; The outer shell is a semi-enclosed shell with an open bottom. An upper movable plate and a lower movable plate are slidably connected inside the outer shell, with the upper movable plate located above the lower movable plate. A hydraulic telescopic rod is installed on the inner wall of the top of the outer shell, and the output end of the hydraulic telescopic rod is connected to the upper movable plate. Insert rods are evenly distributed below the upper movable plate. The insert rods penetrate downward through the lower movable plate and extend to below the lower movable plate. The bottom of the insert rod has a pointed part. The outer lower diameter of the insert rod is smaller than its middle diameter. Multiple sets of rotating plates are rotatably connected to the outer lower part of the insert rod. A sliding block is movably arranged inside the insert rod. The insert rod has a rotating groove for the end of the rotating plate to rotate, a sliding groove for the sliding block to slide up and down, and radially distributed conveying channels. The sliding block is movably connected to the end of the rotating plate. One end of the conveying channel is connected to the outside from the lower outer wall of the insertion rod, and the other end is connected to the outside from the upper part of the insertion rod. A transmission mechanism is provided between the lower movable plate and the insertion rod. The transmission mechanism includes a rack fixedly installed on the top of the lower movable plate, a sliding rod slidably connected to the middle of the insertion rod, a slidably arranged toothed plate, and a spur gear rotatably connected. The bottom of the sliding rod is fixedly connected to the sliding block. The toothed plate is fixed to the top edge of the sliding rod. The spur gear meshes with both the toothed plate and the rack. A return spring and a limiting mechanism are provided between the upper movable plate and the lower movable plate. The limiting mechanism includes a movable groove that runs vertically through the upper movable plate and a limiting plate fixedly installed on the top of the lower movable plate. A limiting block is movably arranged inside the limiting plate. A compression spring is provided between the limiting block and the limiting plate. A limiting locking plate corresponding to the limiting block is provided on the inner wall of the movable groove. An unlocking plug is installed on the inner wall of the top of the outer shell. The unlocking plug and the limiting block are correspondingly arranged. The limiting block has a right-angled trapezoidal cross-section. The top of the limiting locking plate corresponds to the bottom section of the portion of the limiting block extending out of the limiting plate, and the thickness of the limiting locking plate is adapted to the length of the limiting block extending out of the limiting plate. The bottom side of the unlocking plug is a slope, and the portion of the limiting block located outside the limiting plate has a slope adapted to the slope of the unlocking plug, with the inclination angles of the two slopes being the same.

2. The soil remediation device based on land consolidation planning according to claim 1, characterized in that: The insert has an inner sliding groove, a gear groove, and an outer sliding groove arranged sequentially from the inside to the outside. The width of the outer sliding groove is adapted to the thickness of the rack, the width of the inner sliding groove is adapted to the thickness of the gear plate, and the depth of the gear groove is adapted to the radius of the spur gear. The rack is slidably connected in the outer sliding groove, the gear plate is slidably connected in the inner sliding groove, and the spur gear is rotatably connected in the gear groove.

3. The soil remediation device based on land consolidation planning according to claim 2, characterized in that: The upper part of the limiting plate is provided with a limiting groove that is horizontally connected to the outside. The length of the limiting groove is adapted to the length of the limiting block. The limiting block is slidably connected in the limiting groove and extends from the side of the limiting plate to the outside. The two ends of the compression spring are fixedly connected to the side wall of the limiting block and the inner wall of the limiting groove, respectively.

4. The soil remediation device based on land consolidation planning according to claim 1, characterized in that: The outer shell is provided with a main conveying pipe, the diameter of which is adapted to the outlet diameter of the repair agent storage box. The inner shell is provided with branch conveying pipes evenly distributed, the number of which is the same as the number of inserts. One end of each branch conveying pipe is connected to the main conveying pipe, and the other end is connected to the conveying channel of the insert.

5. A soil remediation device based on land consolidation planning according to claim 4, characterized in that: The inner wall of the remediation agent storage tank is equipped with an anti-corrosion coating, which is suitable for storing granular or liquid soil stabilizing agents; the output end of the air pump is connected to the top of the remediation agent storage tank through an air pipe, and the remediation agent storage tank, the main delivery pipe, the branch delivery pipes and the delivery channel together constitute the remediation agent delivery path.

6. The soil remediation device based on land consolidation planning according to claim 1, characterized in that: The module of the spur gear is consistent with the module of the gear plate and the rack, and the number of teeth of the spur gear is matched with the number of teeth of the gear plate and the number of teeth of the rack, so as to ensure stable meshing and transmission between the spur gear and the gear plate and the rack.

7. A soil remediation device based on land consolidation planning according to claim 1, characterized in that: A sealing sleeve is provided at the penetration point between the insertion rod and the lower movable plate. The sealing sleeve is made of wear-resistant rubber and is used to prevent soil impurities from entering the mating gap between the insertion rod and the lower movable plate.

8. A soil remediation device based on land consolidation planning according to claim 1, characterized in that: The two ends of the return spring are welded and fixed to the bottom of the upper movable plate and the top of the lower movable plate, respectively, and the natural length of the return spring is adapted to the initial distance between the upper and lower movable plates.

9. A soil remediation method based on land consolidation planning, implemented using the soil remediation device based on land consolidation planning as described in claim 3, characterized in that, Includes the following steps: S1. Move the device to the area to be repaired using a mobile cart, and adjust the position of the housing using an adjusting arm; S2. Activate the hydraulic telescopic rod to push the upper and lower movable plates downward, so that the insertion rod is inserted into the soil; S3. After the lower movable plate touches the ground, the upper movable plate continues to move downwards. Through the meshing of the rack and spur gear, the toothed plate, sliding rod and sliding block move downwards, causing the rotating plate to expand and form a cavity; S4. Start the air pump to pressurize the remediation agent storage tank, so that the remediation agent is injected into the soil cavity through the delivery system and delivery channel; S5. The hydraulic telescopic rod drives the upper and lower movable plates to rise, and the limiting mechanism keeps the rotating plate in an expanded state to loosen the soil. S6. When the upper movable plate rises to contact the inner wall of the top of the outer shell, the unlocking block presses the inclined surface of the limiting block to retract it into the limiting groove, and the reset spring pushes the distance between the upper and lower movable plates to increase, and the rotating plate retracts.

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