A deep soil sampling device for ecological restoration

Abstract

The present invention belongs to the technical field of soil sampling, and in particular, is a deep soil sampling device for ecological restoration, including a fixing mechanism, the fixing mechanism including a sliding cover and a box body, the lower end of the sliding cover is fixedly connected to the upper end of the box body, the inner wall of the box body is provided with a movable groove, the inner wall array of the movable groove is rotatably connected with a roller, the inner bottom wall of the box body is provided with a through hole, and the inner wall of the through hole is fixedly connected with a support frame. The sampling device, by setting a feeding mechanism and a soil drilling mechanism, the drill rod can be quickly rotated to a position in the same vertical plane as the cylinder under the drive of an electric slide rail, the sensor controls the electric slide rail to stop and the second electric telescopic rod to contract, so that the drill rod falls into the docking tube, realizing a quick connection and extension action, making the drilling and soil taking operation more coherent, and eliminating the need for a large amount of manpower to participate in the tedious work of replacing the drill rod; the soil taking process is fully automated, saving human resources, reducing project costs, and improving work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling, and in particular to a deep soil sampling device for ecological restoration. Background Art

[0002] Ecological restoration is a comprehensive method of repairing polluted environment under the guidance of ecological principles, based on biological restoration, combining various physical restoration, chemical restoration and engineering technical measures, and optimizing the combination to achieve the best effect and lowest cost. When the soil or water is contaminated by heavy metals, plants will absorb heavy metals from the rhizosphere to varying degrees. The amount absorbed is affected by factors such as the physiological function of the plant root system, the composition of the microbial community in the rhizosphere, pH value, oxidation-reduction potential, the type and concentration of heavy metals, and the physical and chemical properties of the soil.

[0003] Soils at different depths have different physical, chemical and biological properties. Through sampling, we can accurately grasp the soil's texture, structure, fertility, moisture content, pH, nutrient distribution and other information, providing detailed basic data for ecological restoration.

[0004] When sampling soil at different depths, the existing technology needs to extend the drill rod manually. This sampling method requires a lot of time and manpower, resulting in low sampling efficiency and unable to meet the needs of large-scale ecological restoration projects for rapid acquisition of soil data. In particular, when sampling at different depths, the equipment required is usually large in size and heavy in weight, which is not convenient to carry and operate in complex terrain in the field, limiting its scope of application.

[0005] In view of the above technical problems, the present invention proposes a deep soil sampling device for ecological restoration. Summary of the invention

[0006] Based on the existing soil sampling technology problems, the present invention proposes a deep soil sampling device for ecological restoration.

[0007] A deep soil sampling device for ecological restoration proposed by the present invention comprises a fixing mechanism, which comprises a sliding cover and a box body, the lower end of the sliding cover is fixedly connected to the upper end of the box body, the inner wall of the box body is provided with a movable groove, the inner wall array of the movable groove is rotatably connected with a roller, the inner bottom wall of the box body is provided with a through hole, the inner wall of the through hole is fixedly connected with a support frame, a connecting pipe is embedded at the center of the support frame, electric telescopic rods are axially symmetrically arranged on the lower surface of the box body, one end of each of the electric telescopic rods is rotatably connected to the lower surface of the box body, a drill rod is arranged inside the connecting pipe, a feeding mechanism is arranged inside the box body, a soil drilling mechanism is arranged on the upper end of the drill rod, and the feeding mechanism is located outside the soil drilling mechanism.

[0008] The feeding mechanism realizes the extension action of the length of the drill rod.

[0009] The soil drilling mechanism realizes the action of drilling the soil.

[0010] Preferably, the feeding mechanism includes an electric slide rail, the upper end of the electric slide rail is fixedly connected to the lower surface of the sliding cover, the lower ends of the multiple slide rails arranged on the surface of the electric slide rail are respectively fixedly connected to connecting belts through fixing columns, the outer surfaces of the connecting belts are respectively fixedly connected to the limiting frames in an array, the surface of the limiting frame is slidably connected to the surface of the roller, and the outer surfaces of the connecting belts are respectively arranged with limiting grooves in an array, each of the limiting grooves is respectively located directly below each of the limiting frames, and the inner wall of each of the limiting grooves is respectively embedded with a second electric telescopic rod, one end of each of the second electric telescopic rods is fixedly connected to the limiting block, and the two ends of each of the limiting blocks are respectively slidably connected to the inner wall of the limiting groove.

[0011] Preferably, each of the limiting grooves has the same included angle as that between a roller sheet on the surface of the drill rod and a horizontal plane, and each of the limiting blocks is matched with each of the limiting grooves.

[0012] Preferably, the drilling mechanism includes a first motor, the lower end of which is fixedly connected to one end of the box body, a gear group is provided at the upper end of the first motor, the output shaft of the first motor is fixedly connected to the horizontal gear of the gear group, the vertical gear of the gear group is fixedly connected to a connecting rod, the surface of the connecting rod is fixedly connected to the lower surface of the sliding cover through a bearing, a gear box is provided at one end of the connecting rod, a clamping device is provided at the lower end of the gear box, the lower end of the clamping device is movably connected to the upper end of the drill rod, a butt joint tube is provided at the periphery of the drill rod, and the butt joint tube is divided into two along the axis of symmetry.

[0013] Preferably, the diameter of the butt joint is the same as the maximum diameter of the drill pipe, a limit ring is obliquely provided on the inner wall of one of the tube bodies of the butt joint, the inclination angle of the limit ring is the same as the inclination angle of the limit block, the surface of the limit ring is in contact with the roller surface of the drill pipe, a rotating rod is provided between the two tube bodies of the butt joint, the surface of the rotating rod of one of the tube bodies of the butt joint is rotatably connected through a bearing, the other tube body of the butt joint is fixedly connected to the surface of the rotating rod, the surface of the rotating rod is fixedly sleeved with a first spur gear, the surface of the first spur gear is meshed with a second spur gear, a fixing groove is provided on the outer surface of the butt joint, the fixing groove spans the outer surfaces of the two half tube bodies of the butt joint, a second motor is fixedly connected to the inner wall of the fixing groove, the output shaft of the second motor is fixedly connected to the lower surface of the second spur gear, and the fixing groove.

[0014] Preferably, an array of air inlets and air outlets are provided on the outer surface of a tube body that can be movably opened by the butt joint tube, and the inner wall of the air outlet is inclined downward.

[0015] Preferably, a push block is fixedly connected to the outer surface of a tube body of the docking tube, the lower end of the push block is slidably connected to one of the rod bodies of the support frame, and a cylinder is provided on the inner bottom wall of the box body, and one end of the piston rod of the cylinder is fixedly connected to the side of the push block.

[0016] Preferably, the clamping device includes a fixed tube with a spiral lifting groove on the inner wall, the inner wall of the fixed tube is slidably connected to a fixed rod, the upper end of the fixed rod is fixedly connected to a slider that is compatible with the spiral lifting groove on the inner wall of the fixed tube, the lower end outer surface of the fixed tube is fixedly sleeved with an electromagnetic brake, the braking part of the electromagnetic brake is movably connected to the upper end outer surface of the fixed rod, and the lower end of the fixed rod is provided with an L-shaped rotating part.

[0017] Preferably, a drill bit is provided at the lower end of the drill rod inside the connecting tube, a spiral groove compatible with the L-shaped rotating part is opened at the upper end of each drill rod, a magnet is provided on the inner wall of the lower end of the spiral groove, the L-shaped rotating part is made of steel with high ferromagnetism, the adsorption force between the magnet and the L-shaped rotating part is smaller than the output force of the first motor, and the L-shaped rotating part is synchronously provided at the lower end of the drill rod.

[0018] Preferably, sensors are respectively provided at the upper end of the butt joint pipe and the lower end of each of the limit frames.

[0019] The beneficial effects of the present invention are:

[0020] 1. By setting up the feeding mechanism and the drilling mechanism, the drill rod can be quickly rotated to a position on the same vertical plane as the cylinder under the drive of the electric slide rail. The sensor controls the electric slide rail to stop and the second electric telescopic rod to retract, so that the drill rod falls into the docking tube, realizing quick connection and extension action, making the drilling and soil extraction operation more coherent, and eliminating the need for a large amount of manpower to participate in the tedious work of drill rod replacement; the soil extraction process is fully automated, saving human resources, reducing project costs, and improving work efficiency.

[0021] 2. By setting an electromagnetic brake, the first motor can avoid sliding between the fixed rod and the fixed tube when rotating in the reverse direction, which will cause the fixed rod to be unable to drive the L-shaped rotating part at its lower end to leave the spiral groove, and affect the extension of the drill rod to take soil, and brake during work to ensure a stable connection; the design of the L-shaped rotating part and the magnet provides an anti-loosening function to prevent the drill rod from accidentally falling off and improve the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1A schematic diagram of a deep soil sampling device for ecological restoration proposed by the present invention;

[0023] Figure 2 A front view of a deep soil sampling device for ecological restoration proposed by the present invention;

[0024] Figure 3 A cross-sectional view of a sliding cover of a deep soil sampling device for ecological restoration proposed by the present invention;

[0025] Figure 4 This is a diagram showing the position of an electric slide rail for a deep soil sampling device for ecological restoration proposed by the present invention;

[0026] Figure 5 A soil deep sampling device for ecological restoration proposed by the present invention Figure 4 The enlarged view of point A in the middle;

[0027] Figure 6 A cross-sectional view of a box of a deep soil sampling device for ecological restoration proposed by the present invention;

[0028] Figure 7 A diagram showing the connection positions of the butt-joint pipe and the push block of a deep soil sampling device for ecological restoration proposed by the present invention;

[0029] Figure 8 A position diagram of the limit slots of a deep soil sampling device for ecological restoration proposed by the present invention;

[0030] Fig. 9 A three-dimensional diagram of the connection belt of a deep soil sampling device for ecological restoration proposed by the present invention;

[0031] Fig.10 This is an internal diagram of a butt-jointed pipe of a deep soil sampling device for ecological restoration proposed by the present invention;

[0032] Fig.11 A position relationship diagram of a second motor of a deep soil sampling device for ecological restoration proposed by the present invention;

[0033] Fig.12 An exploded view of multiple drill rods of a deep soil sampling device for ecological restoration proposed by the present invention;

[0034] Fig.13 A front view of a drill rod of a deep soil sampling device for ecological restoration proposed by the present invention;

[0035] Fig.14 This is a three-dimensional diagram of the clamping device of the deep soil sampling equipment for ecological restoration proposed by the present invention.

[0036] In the figure: 1. fixing mechanism; 11. sliding cover; 12. box body; 13. roller; 14. supporting frame; 2. electric telescopic rod; 3. drilling rod; 4. feeding mechanism; 41. electric slide rail; 42. connecting belt; 43. limiting frame; 44. limiting groove; 45. limiting block; 46. second electric telescopic rod; 5. drilling mechanism; 51. first motor; 52. gear set; 53. connecting rod; 54. gear box; 55. clamping device; 551. fixing pipe; 552. electromagnetic brake; 553. fixing rod; 554. L-shaped rotating part; 56. butt pipe; 57. limiting ring; 58. rotating rod; 59. first spur gear; 510. second spur gear; 511. second motor; 512. push block; 513. cylinder. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] Reference Figure 1-Figure 14 A deep soil sampling device for ecological restoration comprises a fixing mechanism 1, the fixing mechanism 1 comprises a sliding cover 11 and a box body 12, the lower end of the sliding cover 11 is fixedly connected to the upper end of the box body 12, the inner wall of the box body 12 is provided with a movable groove, the inner wall array of the movable groove is rotatably connected with a roller 13, the inner bottom wall of the box body 12 is provided with a through hole, the inner wall of the through hole is fixedly connected with a support frame 14, a connecting pipe is embedded in the center of the support frame 14, an electric telescopic rod 2 is axially symmetrically arranged on the lower surface of the box body 12, one end of each electric telescopic rod 2 is rotatably connected to the lower surface of the box body 12, a drill rod 3 is arranged inside the connecting pipe, a feeding mechanism 4 is arranged inside the box body 12, a soil drilling mechanism 5 is arranged on the upper end of the drill rod 3, and the feeding mechanism 4 is located outside the soil drilling mechanism 5;

[0039] In order to realize the elongation action of the feeding mechanism 4 on the length of the drill rod 3, the feeding mechanism 4 is provided to include an electric slide rail 41, the upper end of the electric slide rail 41 is fixedly connected to the lower surface of the sliding cover 11, and the lower ends of the multiple slide rails arranged on the surface of the electric slide rail 41 are respectively fixedly connected to the connecting belt 42 through the fixing column, and the outer surface of the connecting belt 42 is respectively fixedly connected to the limiting frame 43 in an array, and the surface of the limiting frame 43 is slidably connected to the surface of the roller 13, and the outer surface of the connecting belt 42 is respectively provided with limiting grooves 44 in an array, and each limiting groove 44 is respectively located directly below each limiting frame 43, and the inner wall of each limiting groove 44 is respectively embedded with a second electric telescopic rod 46, and one end of each second electric telescopic rod 46 is fixedly connected to the limiting block 45, and the two ends of each limiting block 45 are respectively slidably connected to the inner wall of the limiting groove 44; the upper end of the butt pipe 56 and the lower end of each limiting frame 43 are respectively provided with a sensor;

[0040] Specifically, through multiple slide rails and array-distributed limit frames 43, limit grooves 44 and limit blocks 45, the drill rod 3 can be extended to different degrees according to actual needs to meet the requirements for the length of the drill rod 3 under different working conditions. At the same time, when facing drilling tasks of different depths, there is no need to prepare drill rods 3 of multiple lengths. Through the function of automatically lengthening the drill rod 3, it can flexibly adapt to various depth requirements, greatly improving the versatility and adaptability of the equipment; the drill rod 3 is rotated to a position in the same vertical plane as the cylinder 513 under the rotation of the connecting belt 42 driven by the electric slide rail 41, and the sensor at the upper end of the butt joint 56 and the sensor at the lower end of the limit frame 43 respectively control the contraction of the second electric telescopic rod 46 and the stop of the electric slide rail 41, and the contracted second electric telescopic rod 46 drives the limit block 45 to be recovered into the limit groove 44, and finally the drill rod 3 located in the limit frame 43 falls into the butt joint 56 directly below it, so that the connection and extension of the drill rod 3 can be quickly realized, making the drilling and soil extraction operation more coherent.

[0041] In this embodiment, each limiting groove 44 has the same angle as the roller sheet on the surface of the drill rod 3 and the horizontal plane, and each limiting block 45 is matched with each limiting groove 44;

[0042] Specifically, the above arrangement enables the drill rod 3 to be stably placed in the limiting frame 43 .

[0043] In order to realize the action of the soil drilling mechanism 5 to drill the soil, the soil drilling mechanism 5 is provided to include a first motor 51, the lower end of the first motor 51 is fixedly connected to one end of the box body 12, a gear set 52 is provided at the upper end of the first motor 51, the output shaft of the first motor 51 is fixedly connected to the horizontal gear of the gear set 52, the vertical gear of the gear set 52 is fixedly connected to a connecting rod 53, the surface of the connecting rod 53 is fixedly connected to the lower surface of the sliding cover 11 through a bearing, a gear box 54 is provided at one end of the connecting rod 53, the upper surface of the gear box 54 is fixedly connected to the inner top of the sliding cover 11, a clamping device 55 is provided at the lower end of the gear box 54, the lower end of the clamping device 55 is movably connected to the upper end of the drill rod 3, a butt joint 56 is provided on the periphery of the drill rod 3, and the butt joint 56 is divided into two along the axis of symmetry; the diameter of the butt joint 56 is the same as the maximum diameter of the drill rod 3 A limit ring 57 is obliquely provided on the inner wall of one of the tube bodies of the butt joint tube 56, and the inclination angle of the limit ring 57 is the same as the inclination angle of the limit block 45. The surface of the limit ring 57 contacts the roller surface of the drill pipe 3. A rotating rod 58 is provided between the two tube bodies of the butt joint tube 56. The surface of the rotating rod 58 of one of the tube bodies of the butt joint tube 56 is rotatably connected through a bearing, and the other tube body of the butt joint tube 56 is fixedly connected to the surface of the rotating rod 58. A first spur gear 59 is fixedly sleeved on the surface of the rotating rod 58, and a second spur gear 510 is meshed on the surface of the first spur gear 59. A fixing groove is provided on the outer surface of the butt joint tube 56, and the fixing groove spans the outer surfaces of the two half tube bodies of the butt joint tube 56. A second motor 511 is fixedly connected to the inner wall of the fixing groove, and the output shaft of the second motor 511 is fixedly connected to the lower surface of the second spur gear 510.

[0044] Specifically, the diameter of the butt joint 56 is the same as the maximum diameter of the drill rod 3, ensuring a close fit between the butt joint 56 and the drill rod 3 during the process of extending the length of the drill rod 3, which can effectively prevent the drill rod 3 inside it from shaking and deflecting, thereby improving the accuracy and stability of drilling; the butt joint 56 is designed to be divided into two along the axis of symmetry, combined with the connection method of the rotating rod 58 and the bearing, so that the two tube bodies of the butt joint 56 can rotate relative to each other, realizing flexible opening and closing operations, which is very convenient when installing the drill rod 3, and the drill rod can be quickly placed into the butt joint 56, thereby improving work efficiency.

[0045] In this embodiment, an array of air inlets and air outlets are provided on the outer surface of a tube body that can be movably opened by the butt joint 56, and the inner wall of the air outlet is inclined downward;

[0046] Specifically, through the above structural design, in the process of automatically extending the length of the drill rod 3, the soil attached to the upper surface of the support frame 14 is removed, so as to avoid the relative sliding of the connecting pipe 56 and the upper surface of the support frame 14 due to the influence of the soil, thereby further avoiding damage to the equipment.

[0047] In this embodiment, a push block 512 is fixedly connected to the outer surface of one tube body of the butt joint 56, and the lower end of the push block 512 is slidably connected to one of the rod bodies of the support frame 14. A cylinder 513 is provided on the inner bottom wall of the box body 12, and one end of the piston rod of the cylinder 513 is fixedly connected to the side of the push block 512;

[0048] Specifically, through the above structural design, the butt joint pipe 56 can slide back and forth smoothly on the upper surface of the support frame 14 under the action of the cylinder 513, thereby improving the butt joint efficiency between the drill rods 3.

[0049] In this embodiment, the clamping device 55 includes a fixed tube 551 with a spiral lifting groove on the inner wall, a fixed rod 553 is slidably connected to the inner wall of the fixed tube 551, a slider matched with the spiral lifting groove on the inner wall of the fixed tube 551 is fixedly connected to the upper end of the fixed rod 553, an electromagnetic brake 552 is fixedly sleeved on the outer surface of the lower end of the fixed tube 551, a braking part of the electromagnetic brake 552 is movably connected to the outer surface of the upper end of the fixed rod 553, and an L-shaped rotating part 554 is provided at the lower end of the fixed rod 553;

[0050] Specifically, the spiral lifting groove on the inner wall of the fixed tube 551 is adapted to the slider at the upper end of the fixed rod 553, so that the fixed rod 553 can be lifted and lowered in the fixed tube 551 by rotation. When the drill rod 3 needs to be connected, the fixed rod 553 is lowered, and the L-shaped rotating part 554 can be conveniently engaged with the upper end of the drill rod 3 to achieve a stable connection. When separation is required, the fixed rod 553 rises and the connection is quickly released, thereby improving the convenience of operation. The setting of the electromagnetic brake 552 can respond quickly and brake the fixed rod 553.

[0051] In this embodiment, a drill bit is provided at the lower end of the drill rod 3 inside the connecting tube, a spiral groove matching the L-shaped rotating part 554 is provided at the upper end of each drill rod 3, a magnet is provided on the inner wall at the lower end of the spiral groove, the L-shaped rotating part 554 is made of steel with high ferromagnetism, the adsorption force between the magnet and the L-shaped rotating part 554 is smaller than the output force of the first motor 51, and the L-shaped rotating part 554 is synchronously provided at the lower end of the drill rod 3;

[0052] Specifically, the design of the L-shaped rotating part 554 and the magnet can provide a certain anti-loosening function after the upper end of the drill rod 3 is clamped, ensuring that the drill rod 3 will not accidentally fall off during operation. At the same time, the adsorption force between the magnet and the L-shaped rotating part 554 is smaller than the output force of the first motor 51, so that when the drill rod 3 needs to be extended, the first motor 51 rotates in the direction, which is convenient for driving the L-shaped rotating part 554 to leave the spiral lifting groove.

[0053] The inner top wall of the sliding cover 11 is also provided with an electronic level; by providing the electronic level, it is possible to detect whether the equipment is in a horizontal state, so as to increase the efficiency of drilling holes and taking soil with the drill rod 3.

[0054] Reference Figure 1-Figure 14 , a deep soil sampling device for ecological restoration, the operating steps are as follows:

[0055] Step 1: Open the electric telescopic rod 2 on the lower surface of the box 12, and then place it on the surface of the soil to be taken, turn on the electronic level, and control the extension of the electric telescopic rod 2 in different directions through the controller to ensure that the equipment is in a horizontal state and the drill bit at the lower end of the drill rod 3 in the connecting pipe is in contact with the soil surface;

[0056] Step 2, turn on the first motor 51, the output shaft of the first motor 51 transmits power to the clamping device 55 through the gear set 52, the connecting rod 53 and the gear box 54, the fixed tube 551 rotates forwardly under the drive of the gear box 54, the electromagnetic brake 552 is closed, and the fixed rod 553 begins to rotate and extend downward under the action of the spiral lifting groove, the fixed rod 553 drives the L-shaped rotating part 554 to rotate, and then drives the drill rod 3 movably connected thereto to rotate, when the fixed rod 553 is extended to the longest and the drill rod 3 has not reached the specified depth, the output shaft of the first motor 51 rotates in the opposite direction, the electromagnetic brake 552 is opened to fix the fixed rod 553, until the L-shaped rotating part 554 leaves the spiral groove of the drill rod 3, and then the electromagnetic brake 552 is closed, the fixed rod 553 shrinks to a state where it cannot shrink, the first motor 51 stops working, and the electric slide rail 41 is opened at the same time;

[0057] Step 3: The electric slide rail 41 mobilizes the connection belt 42 to rotate, thereby driving the fixed limit frame 43 of the outer surface array to rotate, until the limit frame 43 is driven close to the top of the docking pipe 56 in the non-working state. At this time, the electric slide rail 41 stops working, and the limit block 45 below the limit frame 43 is retracted into the limit groove 44 under the action of the second electric telescopic rod 46. The drill rod 3 in the limit frame 43 falls into the docking pipe 56 in the closed state, and then the cylinder 513 is opened. The cylinder 513 pushes the docking pipe 56 to slide on the upper surface of the support frame 14 until the piston rod of the cylinder 513 is extended to the longest.

[0058] Step 4, the second motor 511 starts to work, and drives the second spur gear 510 to rotate through the output shaft. Under the action of the second spur gear 510, it drives the rotating rod 58 fixed to the first spur gear 59 to rotate, and the rotating rod 58 drives the movable tube body of the docking tube 56 to rotate to the maximum angle. At this time, the first motor 51 is turned on, and the lower end of the L-shaped rotating part 554 touches the upper end of the drill rod 3 located in the docking tube 56. The lower end of the L-shaped rotating part 554 is inserted into the upper end of the drill rod 3 and before the transverse rod body enters the spiral groove, the piston rod of the cylinder 513 contracts, driving the docking tube 56 to return to its original state, and the first motor 51 continues to work until the transverse rod body at the lower end of the L-shaped rotating part 554 enters the spiral groove and drives the drill rod 3 to rotate, and repeats steps 3 and 4 until the target soil is drilled.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A deep soil sampling device for ecological restoration, comprising a fixing mechanism (1), characterized in that: The fixing mechanism (1) comprises a sliding cover (11) and a box body (12), the lower end of the sliding cover (11) is fixedly connected to the upper end of the box body (12), the inner wall of the box body (12) is provided with a movable groove, the inner wall array of the movable groove is rotatably connected to a roller (13), the inner bottom wall of the box body (12) is provided with a through hole, the inner wall of the through hole is fixedly connected to a support frame (14), a connecting pipe is embedded at the center of the support frame (14), the lower surface of the box body (12) is axially symmetrically provided with electric telescopic rods (2), one end of each of the electric telescopic rods (2) is rotatably connected to the lower surface of the box body (12), a drill rod (3) is arranged inside the connecting pipe, a feeding mechanism (4) is arranged inside the box body (12), a soil drilling mechanism (5) is arranged at the upper end of the drill rod (3), and the feeding mechanism (4) is located outside the soil drilling mechanism (5); The feeding mechanism (4) realizes an action of extending the length of the drill rod (3); The soil drilling mechanism (5) realizes the action of drilling the soil; The feeding mechanism (4) comprises an electric slide rail (41), the upper end of the electric slide rail (41) is fixedly connected to the lower surface of the slide cover (11), the lower ends of the plurality of slide rails arranged on the surface of the electric slide rail (41) are respectively fixedly connected to a connecting belt (42) through a fixing column, the outer surface of the connecting belt (42) is respectively fixedly connected to a limiting frame (43) in an array, the surface of the limiting frame (43) is slidably connected to the surface of the roller (13), and the outer surface of the connecting belt (42) is respectively provided with limiting grooves (44) in an array, each of the limiting grooves (44) is respectively located directly below each of the limiting frames (43), and the inner wall of each of the limiting grooves (44) is respectively embedded with a second electric telescopic rod (46), one end of each of the second electric telescopic rods (46) is fixedly connected to a limiting block (45), and the two ends of each of the limiting blocks (45) are respectively slidably connected to the inner wall of the limiting groove (44); Each of the limiting grooves (44) has the same angle as the roller sheet on the surface of the drill rod (3) and the horizontal plane, and each of the limiting blocks (45) is matched with each of the limiting grooves (44); The soil drilling mechanism (5) comprises a first motor (51), the lower end of the first motor (51) is fixedly connected to one end of the housing (12), the upper end of the first motor (51) is provided with a gear set (52), the output shaft of the first motor (51) is fixedly connected to the horizontal gear of the gear set (52), the vertical gear of the gear set (52) is fixedly connected to a connecting rod (53), the surface of the connecting rod (53) is fixedly connected to the lower surface of the sliding cover (11) through a bearing, one end of the connecting rod (53) is provided with a gear box (54), the upper surface of the gear box (54) is fixedly connected to the inner top of the sliding cover (11), the lower end of the gear box (54) is provided with a clamping device (55), the lower end of the clamping device (55) is movably connected to the upper end of the drilling rod (3), and the outer periphery of the drilling rod (3) is provided with a butt joint pipe (56), and the butt joint pipe (56) is divided into two along the symmetry axis; The diameter of the butt joint tube (56) is the same as the maximum diameter of the drill rod (3); a limit ring (57) is obliquely provided on the inner wall of one of the tube bodies of the butt joint tube (56); the inclination angle of the limit ring (57) is the same as the inclination angle of the limit block (45); the surface of the limit ring (57) is in contact with the surface of the roller of the drill rod (3); a rotating rod (58) is provided between the two tube bodies of the butt joint tube (56); the surface of the rotating rod (58) of one of the tube bodies of the butt joint tube (56) is rotatably connected via a bearing; the butt joint tube (56) ) is fixedly connected to the surface of the rotating rod (58), the surface of the rotating rod (58) is fixedly sleeved with a first spur gear (59), the surface of the first spur gear (59) is meshed with a second spur gear (510), the outer surface of the butt joint tube (56) is provided with a fixing groove, the fixing groove spans the outer surfaces of the two half tubes of the butt joint tube (56), the inner wall of the fixing groove is fixedly connected to a second motor (511), the output shaft of the second motor (511) is fixedly connected to the lower surface of the second spur gear (510), and the fixing groove.

2. The deep soil sampling device for ecological restoration according to claim 1, characterized in that: The butt-joint tube (56) has an outer surface array of a tube body that can be movably opened and is provided with air inlets and air outlets, and the inner wall of the air outlet is inclined downward.

3. The deep soil sampling device for ecological restoration according to claim 2 is characterized in that: A push block (512) is fixedly connected to the outer surface of one tube body of the butt joint tube (56), the lower end of the push block (512) is slidably connected to one of the rod bodies of the support frame (14), and a cylinder (513) is provided on the inner bottom wall of the box body (12), and one end of the piston rod of the cylinder (513) is fixedly connected to the side surface of the push block (512).

4. The deep soil sampling device for ecological restoration according to claim 3 is characterized in that: The clamping device (55) comprises a fixed tube (551) having a spiral lifting groove formed on its inner wall, a fixed rod (553) being slidably connected to the inner wall of the fixed tube (551), a sliding block matching the spiral lifting groove formed on the inner wall of the fixed tube (551) being fixedly connected to the upper end of the fixed rod (553), an electromagnetic brake (552) being fixedly sleeved on the outer surface of the lower end of the fixed tube (551), a braking portion of the electromagnetic brake (552) being movably connected to the outer surface of the upper end of the fixed rod (553), and an L-shaped rotating portion (554) being provided at the lower end of the fixed rod (553).

5. The deep soil sampling device for ecological restoration according to claim 4 is characterized in that: A drill bit is arranged at the lower end of the drill rod (3) located inside the connecting tube, a spiral groove matching the L-shaped rotating part (554) is opened at the upper end of each drill rod (3), a magnet is arranged on the inner wall of the lower end of the spiral groove, the L-shaped rotating part (554) is made of steel with high ferromagnetism, the adsorption force between the magnet and the L-shaped rotating part (554) is smaller than the output force of the first motor (51), and the L-shaped rotating part (554) is synchronously arranged at the lower end of the drill rod (3).

6. The deep soil sampling device for ecological restoration according to claim 5, characterized in that: Sensors are respectively provided at the upper end of the butt joint pipe (56) and the lower end of each of the limit frames (43), and an electronic level is also provided on the inner top wall of the sliding cover (11).

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