Deep sampling device for ecological restoration soil investigation

Abstract

The invention discloses a deep sampling device for ecological restoration soil investigation, and relates to the technical field of sampling. The linkage mechanism is mounted on the sliding part of the first linear sliding rail and can automatically move along the guide rail part of the first linear sliding rail, and a rotatable connecting sleeve is arranged at the bottom of the linkage mechanism; the end portions of the sampling barrels are detachably connected in a sealed mode, a plurality of liquid injection holes are formed in the barrel wall of each sampling barrel from one end in the axis direction in a penetrating mode, and a plurality of non-penetrating liquid injection holes are formed in the side wall of the drilling barrel from the end, connected with the sampling barrels, of the drilling barrel inwards in the axis direction. The multiple sampling barrels are detachably connected in a sealed mode and suitable for sampling soil of different depths, sampling pollution is avoided through sealed sampling, after sampling is completed, a polymer curing agent is injected into the liquid injection hole to cure soil at the bottom end, the risk that the sampled soil slides down in the lifting process is avoided, and the sampling and collecting quality is guaranteed.

Description

Technical Field

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

[0002] Ecological restoration refers to geological actions or phenomena formed under the influence of natural or human factors, which cause losses to human life and property and damage to the environment. The distribution and variation patterns of ecological restoration in time and space are both subject to the natural environment and related to human activities. It is often the result of the interaction between humans and nature. Among them, soil erosion and soil salinization, as a type of ecological restoration, are caused by natural or human factors, leading to a decline in geological quality and causing a great impact on human life. Therefore, sampling and management of ecological restoration are particularly important. Therefore, in the early preparation process of ecological restoration, it is very necessary to take soil sampling surveys in the restoration area.

[0003] Existing soil sampling equipment is mainly suitable for shallow soil sampling, and also includes electric deep sampling equipment, but its sampling depth is limited; and especially in the process of taking out the soil after deep soil sampling, if the soil is loose, smooth, etc., the soil is easy to slide at the bottom of the sampling device, causing soil sampling failure, and it is difficult to take out the deep soil samples. That is, the existing soil sampling equipment still has shortcomings.

[0004] Therefore, it is necessary to invent a deep sampling device for ecological restoration soil investigation to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a deep sampling device for ecological restoration soil investigation to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a deep sampling device for soil investigation in ecological restoration, comprising: The first linear slide rail includes a guide rail part and a sliding part, and is the main part of the sampling lift; The linkage mechanism is installed on the sliding part of the first linear slide rail and can move along the guide rail part of the first linear slide rail, and a rotatable connecting sleeve is provided at the bottom; The sampling tubes are provided in a plurality of pieces, and the ends are detachably sealed and connected, and one end is detachably sealed and connected to the connecting sleeve, and a plurality of injection holes are provided on the wall of the sampling tube from one end along the axial direction; A drill barrel is detachably and sealedly connected to one end of the sampling barrel. A plurality of non-through injection holes are opened on the side wall of the drill barrel from the end connected to the sampling barrel inwardly along the axial direction. The number of injection holes on the drill barrel is consistent with the number of injection holes on the sampling barrel and the drill barrel is sealed correspondingly after installation. The injection holes on the drill barrel penetrate the drill barrel inwardly and are connected to the inner cavity thereof. A plurality of penetration holes are opened. A plurality of electric heating plates are embedded in the side wall of the drill barrel. The motor is installed on the linkage mechanism and is used to drive the linkage mechanism to rise and fall and the connecting sleeve to rotate.

[0007] Optionally, it also includes a second linear slide, which includes a guide rail part and a sliding part and is arranged in two groups, the guide rail parts of the two groups of the second linear slides are respectively fixedly mounted at both ends of the guide rail part of the first linear slide and their guides are perpendicular to the guide of the guide rail part of the first linear slide, a rack is fixedly connected between the sliding parts of the two groups of the second linear slides, the length direction of the rack is parallel to the guide of the guide rail part of the first linear slide, automatic telescopic mechanisms are fixedly mounted at both ends of the guide rail part of the first linear slide, the telescopic direction of the automatic telescopic mechanism is parallel to the guide of the guide rail part of the second linear slide, the output ends of the two automatic telescopic mechanisms are fixedly connected to the rack, and the linkage mechanism is fixedly mounted on the sliding part of the first linear slide and is located on one side of the tooth surface of the rack.

[0008] Optionally, the linkage mechanism includes a housing, a driving gear, a driven gear, a worm, a worm wheel and a spur gear. The driving gear and the driven gear are rotatably mounted on the inner upper part of the housing and meshingly connected. The diameter of the driven gear is greater than the diameter of the driving gear. The worm is rotatably mounted inside the housing and is coaxially connected to the bottom end of the driven gear. The worm wheel and the spur gear are coaxially fixed and rotatably mounted inside the housing. The worm wheel is meshingly connected to the worm. An opening is provided on one side of the housing close to the rack, and the spur gear passes through the opening and meshes with the rack. The motor is fixedly mounted on the top of the linkage mechanism housing and the output end is coaxially connected to the driving gear. The connecting sleeve is coaxially connected to the bottom end of the worm and the connecting sleeve is located outside the linkage mechanism housing.

[0009] Optionally, it also includes a rotary joint, which is coaxially connected to the top of the driven gear, and the input end of the rotary joint is located outside the linkage mechanism housing. The sleeve wall of the connecting sleeve is also provided with a plurality of injection holes from the connecting end to the inside, which are adapted to be sealed and connected with the injection holes of the sampling tube. The plurality of injection holes of the connecting sleeve extend inside the top of the connecting sleeve and converge in the middle of the top of the connecting sleeve and are connected to form a liquid inlet. The liquid inlet is provided with a main injection channel upward, which passes through the worm, the driven gear and the output end of the rotary joint in sequence.

[0010] Optionally, the sampling tube is a cylinder with open ends, one end of the sampling tube is externally cut to form a joint, the joint is externally fixedly connected to a limiting rod, the other end of the sampling tube and the inner wall of the end of the connecting sleeve are both cut to form a connecting groove, the inner wall of the connecting groove is provided with a limiting groove, the joint is fit and plugged into the connecting groove, the limiting rod is adapted to be snap-fitted into the limiting groove, and the inner wall of the connecting sleeve is also provided with a limiting groove adapted to the limiting rod.

[0011] Optionally, the limiting groove includes an arc-shaped transverse groove and an inlet, the arc-shaped transverse groove is opened along the inner wall circumference of the connecting groove in the length direction, the two ends of the arc-shaped transverse groove are circular structures, the inlet is opened from the end of the connecting groove to the direction of the arc-shaped transverse groove and is connected with the middle of the arc-shaped transverse groove, two arc-shaped protrusions are provided on the side of the arc-shaped transverse groove close to the inlet, the two arc-shaped protrusions are arranged on both sides of the inlet and a gap is left between the ends of the arc-shaped transverse groove, and the gap is used for limiting the placement of the limiting rod, the width value of the inlet is greater than or equal to the diameter value of the limiting rod, the diameter value of the circular structure at the end of the arc-shaped transverse groove is equal to the diameter value of the limiting rod, the arc-shaped transverse groove is arranged in plurality in the radial direction of the connecting groove, the inlet passes through and connects multiple arc-shaped transverse grooves, and the limiting rod is arranged in plurality in the radial direction of the joint and is consistent with the number of arc-shaped transverse grooves.

[0012] Optionally, the drill tube is a cylindrical structure, and a joint is also provided on the outer wall of one end. A limiting rod is also provided on the outer wall of the joint of the drill tube, and a plurality of drilling teeth are provided on the end of the drill tube away from the joint.

[0013] Optionally, the plurality of electric heating plates are arranged in a circular array with the axis of the drill barrel as the center so as to avoid the injection hole and not contact the injection hole. A groove body is provided on the outside of the side wall of the drill barrel, a power supply is installed in the groove body, and a sealing cover is installed on the external bolts of the groove body for sealing the groove body. The sealing cover does not protrude from the groove body after installation.

[0014] Optionally, the side wall of the sampling tube is incompletely cut from one end of the joint to the other end to form a side opening, and the side opening is fitted and sealed with a sealing plate, and slots are opened in the side wall of the sampling tube on both sides of the side opening, and the two sides of the sealing plate are fixedly connected with insertion strips that fit and plug into the slots.

[0015] Technical effects and advantages of the present invention: The sampling tubes of the present invention are arranged in multiple and detachable sealed connections, which are suitable for soil sampling at different depths, and the sealed sampling avoids sampling contamination; the sampling is drilled in a rotating and lifting manner, and the drilling efficiency is high, and the sampling lifting and rotation are all driven by a motor, which is convenient and quick to operate and reduces the use of the driving source; after the sampling is completed, a polymer curing agent and heating are used to solidify the soil in the drill tube, so as to avoid the risk of the sampled soil slipping during the lifting process, thereby ensuring the sampling collection quality, and the heating is used for liquid injection, thereby improving the efficiency of liquid injection to solidify the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the vertical structure of the present invention.

[0017] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the present invention from a side view.

[0018] Figure 3 It is a schematic cross-sectional structure diagram of the linkage mechanism of the present invention.

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the sampling tube of the present invention.

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the end portion of the sampling tube of the present invention.

[0021] Figure 6 It is a schematic diagram of the vertical split structure of the sampling tube of the present invention.

[0022] Figure 7 For the present invention Figure 6 Schematic diagram of the local enlarged structure at point A in the middle.

[0023] Figure 8 It is a schematic diagram of the cross-sectional structure of the drill barrel of the present invention.

[0024] Fig. 9 It is a schematic diagram of the vertical structure of the drill barrel of the present invention.

[0025] Fig.10 The main injection channel of the present invention is provided with a structural schematic diagram.

[0026] In the figure: 1. first linear slide; 2. second linear slide; 3. linkage mechanism; 4. sampling tube; 5. drill tube; 6. motor; 7. injection hole; 8. penetration hole; 9. electric heating plate; 10. rack; 11. automatic telescopic mechanism; 12. driving gear; 13. driven gear; 14. worm; 15. worm wheel; 16. spur gear; 17. opening; 18. rotary joint; 19. connecting sleeve; 20. joint; 21. connecting groove; 22. limit rod; 23. limit groove; 24. arc-shaped transverse groove; 25. inlet; 26. arc-shaped protrusion; 27. side opening; 28. sealing plate; 29. ​​slot; 30. insert; 31. drilling tooth; 32. power supply; 33. sealing cover; 34. main injection channel. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] The present invention provides Figure 1-9 The deep sampling device for ecological restoration soil investigation shown includes a first linear slide rail 1, a second linear slide rail 2, a linkage mechanism 3, a sampling tube 4, a drill tube 5 and a motor 6, which is used for rotating and drilling into the soil to achieve sealed sampling at different depths.

[0032] like Figure 1As shown: the first linear slide 1 includes a guide rail part and a sliding part, the guide rail part of the first linear slide 1 is vertically arranged, the second linear slide 2 includes a guide rail part and a sliding part and is arranged in two groups, the guide rail parts of the two groups of second linear slides 2 are horizontally arranged and respectively fixedly installed at the two ends of the guide rail part of the first linear slide 1, a vertically arranged rack 10 is fixedly connected between the sliding parts of the two groups of second linear slides 2, and automatic telescopic mechanisms 11 are fixedly installed at both ends of the guide rail part of the first linear slide 1. The telescopic direction of the automatic telescopic mechanism 11 is parallel to the guide of the guide rail part of the second linear slide 2. The output ends of the two automatic telescopic mechanisms 11 are fixedly connected to the rack 10, which is used to drive the rack 10 to move along the guide rail part of the second linear slide 2. The automatic telescopic mechanism 11 includes but is not limited to the use of an electric telescopic rod. The linkage mechanism 3 is fixedly installed on the sliding part of the first linear slide 1 and is located on one side of the tooth surface of the rack 10.

[0033] like Figure 2 and 3 As shown: the linkage mechanism 3 includes a housing, a driving gear 12, a driven gear 13, a worm 14, a worm wheel 15, a spur gear 16 and a rotary joint 18. The driving gear 12 and the driven gear 13 are rotatably mounted on the inner upper part of the housing and meshedly connected. The driving gear 12 and the driven gear 13 are both helical gears. The diameter of the driven gear 13 is greater than the diameter of the driving gear 12, which is used to reduce the rotation speed. The worm 14 is rotatably mounted inside the housing and is coaxially connected to the bottom end of the driven gear 13. The worm wheel 15 and the spur gear 16 are coaxially fixed and rotatably mounted inside the housing. The worm wheel 15 is meshedly connected to the worm 14. An opening 17 is provided on one side of the housing close to the rack 10. The spur gear 16 passes through the opening 17 and meshes with the rack 10. The motor 6 is fixedly mounted on the top of the linkage mechanism 3 housing and the output end is coaxially connected to the driving gear 12. The bottom of the worm 14 The end is coaxially connected with a connecting sleeve 19, and the connecting sleeve 19 is located outside the housing of the linkage mechanism 3. The connecting sleeve 19 is used to connect the sampling tube 4. The rotary joint 18 is coaxially connected to the top of the driven gear 13. The input end of the rotary joint 18 is located outside the housing of the linkage mechanism 3. The rotary joint 18 adopts a pipeline rotary joint for an external liquid source. The specific operation logic is: the motor 6 drives the driving gear 12 to rotate, the driving gear 12 drives the driven gear 13 meshing with it to rotate, and the driven gear 13 drives the worm 14 connected to it to rotate, thereby realizing the rotation of the sampling tube 4 connected to the connecting sleeve 19, the worm 14 rotates and drives the worm wheel 15 meshing with it to rotate, and the spur gear 16 rotates with the worm wheel 15 to realize meshing and moving on the rack 10, thereby realizing the lifting and lowering of the linkage mechanism 3 and the sampling tube 4, and realizing the rotation and lifting of the sampling tube 4 under the drive of the motor 6.

[0034] like Figure 3 and 4As shown: the sampling tube 4 is a cylinder with open ends, one end of the sampling tube 4 is cut to form a joint 20, the outside of the joint 20 is fixedly connected with a limiting rod 22, the other end of the sampling tube 4 and the inner wall of the end of the connecting sleeve 19 are cut to form a connecting groove 21, the inner wall of the connecting groove 21 is provided with a limiting groove 23, the joint 20 is fitted and plugged into the connecting groove 21, and the limiting rod 22 and the limiting groove 23 are adapted to play the role of limiting card connection.

[0035] like Figure 5 As shown: the limiting groove 23 includes an arc-shaped transverse groove 24 and an inlet 25. The arc-shaped transverse groove 24 is opened along the inner wall circumference of the connecting groove 21 in the length direction. The two ends of the arc-shaped transverse groove 24 are circular structures. The inlet 25 is opened from the end of the connecting groove 21 to the arc-shaped transverse groove 24 and is connected with the middle of the arc-shaped transverse groove 24. Two arc-shaped protrusions 26 are provided on one side of the arc-shaped transverse groove 24 close to the inlet 25. The two arc-shaped protrusions 26 are arranged on both sides of the inlet 25 and a gap is left between the ends of the arc-shaped transverse groove 24. The gap is used for limiting the placement of the limiting rod 22. The width value of the inlet 25 is greater than or equal to the diameter value of the limiting rod 22. The diameter value of the circular structure at the end of the arc-shaped transverse groove 24 is equal to the diameter value of the limiting rod 22. When the limiting rod 22 is located in the circular structure at the end of the arc-shaped transverse groove 24, the arc-shaped protrusion 26 The limit rod 22 is fitted and limited, and the arc-shaped transverse groove 24 is arranged in multiple radial directions of the connecting groove 21, and the inlet 25 penetrates and connects multiple arc-shaped transverse grooves 24. The limit rod 22 is arranged in multiple radial directions of the joint 20 and is consistent with the number of the arc-shaped transverse grooves 24. The joint 20 is inserted at the end of the connecting groove 21, and the limit rod 22 enters correspondingly with the inlet 25. After the joint 20 is fully inserted into the connecting groove 21, it is screwed to one side. The limit rod 22 enters the circular structure at the end of the arc-shaped transverse groove 24 through the arc-shaped protrusion 26. The arc-shaped protrusion 26 is limited to realize the clamping connection between the joint 20 and the connecting groove 21. The circular structure at the other end of the arc-shaped transverse groove 24 is used for converting the clamping position of the limit rod 22 when the sampling tube 4 is reversed under the drive of the motor 6 to ensure that the sampling tube 4 still maintains a stable limit connection when it is flipped.

[0036] like Figure 8 As shown: the drill tube 5 is a cylindrical structure, and a joint 20 is also provided on the outer wall of one end. A limit rod 22 is also provided on the outer wall of the joint 20 for connecting with the connecting groove 21 of the sampling tube 4. Both ends of the drill tube 5 are open and the inner diameter is consistent with the inner diameter of the main body of the sampling tube 4. A plurality of drilling teeth 31 are provided on the other end of the drill tube 5 for improving its drilling efficiency. A plurality of injection holes 7 are provided inwardly from the end provided with the joint 20 on the wall of the drill tube 5, but the injection holes 7 are not provided on the joint 20. A plurality of penetration holes 8 connected with the injection holes 7 are provided outwardly from the inner wall of the drill tube 5, and one injection hole 7 corresponds to a plurality of penetration holes 8.

[0037] like Fig. 9As shown: an electric heating plate 9 is embedded inside the side wall of the drill barrel 5. The electric heating plate 9 is provided in plurality and arranged in a circular array with the axis of the drill barrel 5 as the center, avoiding the injection hole 7 and not contacting the injection hole 7. A groove body is provided outside the side wall of the drill barrel 5, a power supply 32 is installed in the groove body, and a sealing cover 33 is bolted to the outside of the groove body for sealing the groove body. After installation, the sealing cover 33 does not protrude from the groove body to avoid affecting the drilling efficiency of the drill barrel 5. The electric heating plate 9 is used to electrically heat the sampled soil in the drill barrel 5, evaporate its moisture to solidify it, and avoid the soil in the drill barrel 5 from loosening. When the sampling is lifted, the sample collected in the sampling tube 4 slides off from the bottom of the drill barrel 5.

[0038] like Figure 5 , 7 As shown in Figure 10, the wall of the sampling tube 4 is provided with a plurality of injection holes 7 from one end to the other end, but the injection holes 7 are not provided on the joint 20, and the wall of the connecting sleeve 19 is also provided with a plurality of injection holes 7 from the connecting end to the inside, and the plurality of injection holes 7 of the connecting sleeve 19 extend inside the top of the connecting sleeve 19 and converge at the middle of the top of the connecting sleeve 19 and are connected to form a liquid inlet, and the main injection channel 34 is provided upwardly from the liquid inlet, and passes through the worm 14, the driven gear 13 and the rotating coupling in sequence upwardly. The output end of the head 18 is connected, and the connecting sleeve 19, the sampling tube 4 and the injection hole 7 on the drill tube 5 are adapted to be correspondingly arranged, that is, when the sampling tube 4 is screwed and clamped in the connecting sleeve 19, and the drill tube 5 is screwed and clamped at the end of the sampling tube 4, the connecting sleeve 19, the sampling tube 4 and the injection hole 7 on the drill tube 5 are correspondingly sealed and connected in sequence, and the injection input end is a rotary joint 18, and enters the interior of the drill tube 5 through the main injection channel 34, the injection hole 7 and the penetration hole 8 in sequence, which is used for solidification of the sampled soil in the drill tube 5.

[0039] like Figure 6 and 7 As shown: the side wall of the sampling tube 4 is not completely cut from one end of the joint 20 to the other end. After the cutting, the side wall of the sampling tube 4 forms a side opening 27, and the cut part is a sealing plate 28. Slots 29 are opened on both sides of the side opening 27 in the side wall of the sampling tube 4. Insert strips 30 that fit and plug into the slots 29 are fixedly connected on both sides of the sealing plate 28. After the slots 29 and the insert strips 30 are plugged in, the sealing plate 28 seals the side opening 27 to maintain the sealing of the side wall of the sampling tube 4. After the sampling is completed, the sampling tube 4 is disassembled, and the sealing plate 28 is pulled out of the side opening 27 to leak out the soil sample in the sampling tube 4, which is convenient for quickly penetrating the soil state and taking out the soil sample from the sampling tube 4.

[0040] The present invention also provides a method for using the device: The device is adapted to be installed on a mobile mechanism for use, and the mobile mechanism is, for example, a vehicle.

[0041] Determine the sampling location, the motor 6 drives the linkage mechanism 3 to move to the top of the first linear slide rail 1, the joint 20 of the sampling tube 4 is inserted into the connecting sleeve 19 and screwed to one side to lock, according to the required sampling depth, the corresponding number of sampling tubes 4 are taken and multiple sampling tubes 4 are spliced, and the drill tube 5 is screwed and locked at the bottom end of the bottommost sampling tube 4 to complete the assembly work; The driving motor 6 is reversed, the motor 6 drives the linkage mechanism 3 to descend on the first linear slide rail 1 and drives the sampling tube 4 to rotate, and the drill tube 5 contacts the ground and rotates and descends to drill and sample; When the sliding part of the first linear slide rail 1 moves to the bottom of the guide rail part but has not reached the drilling depth, the automatic telescopic mechanism 11 drives the rack 10 to move to the side away from the linkage mechanism 3 to cancel the linkage with the linkage mechanism 3. The staff holds the sampling tube 4 by hand or adopts a clamping mechanism to clamp the sampling tube 4 to prevent it from rotating. The driving motor 6 reverses and drives the inlet 25 of the connecting sleeve 19 to correspond to the limit rod 22 of the sampling tube 4. The staff lifts the linkage mechanism 3 upward to realize the disassembly of the connecting sleeve 19 and the sampling tube 4. The automatic telescopic mechanism 11 drives the rack 10 to move and re-adapt to the linkage mechanism 3 to realize the stable placement of the linkage mechanism 3. The driving motor 6 continues to rotate to drive the linkage mechanism 3 to rise, and the sampling tube is installed on the sampling tube 4 on the ground. 4 increases its length, the driving motor 6 reverses and drives the linkage mechanism 3 to descend close to the added sampling tube 4 and makes the inlet 25 of the connecting sleeve 19 correspond to the limit rod 22 of the added sampling tube 4, then stops the rotation of the motor 6, the staff lifts the linkage mechanism 3, the automatic telescopic mechanism 11 drives the rack 10 to cancel the linkage with the linkage mechanism 3, and manually lowers the linkage mechanism 3 so that the limit rod 22 of the sampling tube 4 is completely inserted into the inlet 25 of the connecting sleeve 19, the automatic telescopic mechanism 11 drives the rack 10 to move and re-link with the linkage mechanism 3, the motor 6 continues to rotate to drive the linkage mechanism 3 to descend, and the rotation of the connecting sleeve 19 is automatically locked with the sampling tube 4, and the drilling sampling is continued. If the sampling tube 4 needs to be installed later, continue the above operation; After reaching the sampling depth, the rotary joint 18 is connected to an external high-pressure liquid source to pass a solution, and the solution is sequentially penetrated into the soil in the drill tube 5 through the main injection channel 34, the injection hole 7 and the penetration hole 8. The solution uses a polymer curing agent, such as polyurethane and acrylate. The polymer curing agent penetrates into the soil to solidify the soil, and the electric heating plate 9 is turned on to heat the soil. The heating will accelerate the curing process of the polymer curing agent and reduce the soil solidification time. The heating of the soil can evaporate the moisture in the soil and accelerate the soil solidification efficiency. The soil in the bottom end of the drill tube 5 for sampling is solidified to prevent the sampled soil from sliding at the bottom end of the drill tube 5 when the soil is subsequently lifted and taken out; After the soil in the drill tube 5 solidifies, the automatic telescopic mechanism 11 drives the rack 10 to cancel the linkage with the linkage mechanism 3, the staff presses down the linkage mechanism 3 and the motor 6 reverses, the motor 6 drives the connecting sleeve 19, the sampling tube 4 and the drill tube 5 to reverse, and the limit rod 22 can be smoothly switched from one end of the limit groove 23 to the other end for clamping when the lower limit rod 22 is pressed down, after the clamping conversion is completed, the automatic telescopic mechanism 11 drives the rack 10 to move and connect with the linkage mechanism 3, the motor 6 continues to work to drive the sampling tube 4 to rotate and rise and pull it out of the soil, when the sliding part of the first linear slide rail 1 is about to move to the top of the guide rail part, the sampling tube 4 on the ground is disassembled according to the above-mentioned sampling tube 4 disassembly method, the linkage mechanism 3 is connected to the sampling tube 4 leaked on the ground and continues to work to take out the sampling tube 4 under the ground to complete the soil sampling work, and obtain soil samples of different depths without pollution; The state of the sampled soil can be quickly observed by pulling out the sealing plate 28 on the sampling tube 4 , and the sampled soil can also be easily taken out through the side opening 27 of the sampling tube 4 .

[0042] The device and its sampling method are suitable for sampling soil at different depths, and the sealed sampling avoids sampling contamination; the sampling lifting and rotation are all driven by a motor 6, which is convenient and quick to operate and reduces the use of driving sources; the sampling adopts the rotary drilling method and the bottom end of the drill tube 5 is provided with drilling teeth 31 to improve the drilling efficiency; after the sampling is completed, a polymer curing agent and heat are used to cure the soil in the drill tube 5 to avoid the risk of the sampled soil slipping during the lifting process, thereby ensuring the sampling collection quality; the side wall of the sampling tube 4 is a detachable structure, which can quickly observe the state of the sampled soil and facilitate the removal of the sampled soil; the connection method of the sampling tube 4 and the drill tube 5 adopts a rotary clamping connection, which is convenient and quick to disassemble and assemble, and avoids the disadvantage of the existing threaded screw connection, which is difficult to disassemble after a long period of rotary drilling. In summary, the present invention is convenient and quick to use, has high sampling efficiency and small limitations.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A deep sampling device for ecological restoration soil investigation, characterized in that: include: The first linear slide rail (1) comprises a guide rail portion and a sliding portion, and is the main part of the sampling lift; A linkage mechanism (3) is mounted on the sliding portion of the first linear slide rail (1) and can move along the guide rail portion of the first linear slide rail (1), and a rotatable connecting sleeve (19) is provided at the bottom; The sampling tubes (4) are provided in a plurality of pieces, and the ends are detachably sealed and connected, and one end is detachably sealed and connected to the connecting sleeve (19), and a plurality of injection holes (7) are provided on the wall of the sampling tube (4) from one end along the axial direction; A drill tube (5) is detachably sealed and connected to one end of the sampling tube (4); a plurality of non-through injection holes (7) are provided on the side wall of the drill tube (5) from the end connected to the sampling tube (4) inwardly along the axial direction; the number of the injection holes (7) on the drill tube (5) is the same as the number of the injection holes (7) on the sampling tube (4) and the drill tube (5) is sealed correspondingly after installation; the injection holes (7) on the drill tube (5) penetrate the drill tube (5) inwardly and are connected to the inner cavity thereof; a plurality of penetration holes (8) are provided; and a plurality of electric heating plates (9) are embedded in the side wall of the drill tube (5); The motor (6) is mounted on the linkage mechanism (3) and is used to drive the linkage mechanism (3) to rise and fall and the connecting sleeve (19) to rotate.

2. A deep sampling device for soil investigation for ecological restoration according to claim 1, characterized in that: The invention also comprises a second linear slide rail (2), wherein the second linear slide rail (2) comprises a guide rail portion and a sliding portion and is arranged in two groups. The guide rail portions of the two groups of the second linear slide rails (2) are respectively fixedly mounted at the two ends of the guide rail portion of the first linear slide rail (1) and the guides are perpendicular to the guides of the guide rail portion of the first linear slide rail (1). A rack (10) is fixedly connected between the sliding portions of the two groups of the second linear slide rails (2). The length direction of the rack (10) is parallel to the guide of the guide rail portion of the first linear slide rail (1). Automatic telescopic mechanisms (11) are fixedly mounted at both ends of the guide rail portion of the first linear slide rail (1). The telescopic direction of the automatic telescopic mechanisms (11) is parallel to the guide of the guide rail portion of the second linear slide rail (2). The output ends of the two automatic telescopic mechanisms (11) are fixedly connected to the rack (10). The linkage mechanism (3) is fixedly mounted on the sliding portion of the first linear slide rail (1) and is located on one side of the tooth surface of the rack (10).

3. A deep sampling device for soil investigation for ecological restoration according to claim 2, characterized in that: The linkage mechanism (3) comprises a housing, a driving gear (12), a driven gear (13), a worm (14), a worm wheel (15) and a spur gear (16); the driving gear (12) and the driven gear (13) are rotatably mounted on the inner upper part of the housing and meshingly connected; the diameter of the driven gear (13) is greater than the diameter of the driving gear (12); the worm (14) is rotatably mounted inside the housing and coaxially connected to the bottom end of the driven gear (13); the worm wheel (15) and the spur gear (16) are coaxially fixed. The worm wheel (15) is rotatably mounted inside the housing, the worm gear (15) is meshedly connected with the worm (14), an opening (17) is provided on a side of the housing close to the rack (10), the spur gear (16) passes through the opening (17) and is meshedly connected with the rack (10), the motor (6) is fixedly mounted on the top of the housing of the linkage mechanism (3) and the output end is coaxially connected with the driving gear (12), the connecting sleeve (19) is coaxially connected to the bottom end of the worm (14) and the connecting sleeve (19) is located outside the housing of the linkage mechanism (3).

4. A deep sampling device for soil investigation for ecological restoration according to claim 3, characterized in that: It also includes a rotary joint (18), the rotary joint (18) being coaxially connected to the top end of the driven gear (13), the input end of the rotary joint (18) being located outside the housing of the linkage mechanism (3), the sleeve wall of the connecting sleeve (19) also being provided with a plurality of injection holes (7) adapted to be sealed and connected to the injection holes (7) of the sampling tube (4) from the connecting end inward, the plurality of injection holes (7) of the connecting sleeve (19) extending inside the top end of the connecting sleeve (19) and converging at the middle of the top end of the connecting sleeve (19) and being connected to form a liquid inlet, the liquid inlet being provided with a main injection channel (34) upwardly penetrating the worm (14), the driven gear (13) and being connected to the output end of the rotary joint (18) in sequence.

5. The deep sampling device for soil investigation for ecological restoration according to claim 1 is characterized by: The sampling tube (4) is a cylinder with open ends. One end of the sampling tube (4) is cut externally to form a joint (20). The joint (20) is externally fixedly connected to a limiting rod (22). The other end of the sampling tube (4) and the inner wall of the end of the connecting sleeve (19) are cut to form a connecting groove (21). The inner wall of the connecting groove (21) is provided with a limiting groove (23). The joint (20) is fitted and plugged with the connecting groove (21). The limiting rod (22) is adapted to be snap-fitted with the limiting groove (23). The inner wall of the connecting sleeve (19) is also provided with a limiting groove (23) adapted to the limiting rod (22).

6. The deep sampling device for soil investigation for ecological restoration according to claim 5 is characterized by: The limiting groove (23) comprises an arc-shaped transverse groove (24) and an inlet (25). The arc-shaped transverse groove (24) is opened along the inner wall circumference of the connecting groove (21) in the length direction. Both ends of the arc-shaped transverse groove (24) are circular structures. The inlet (25) is opened from the end of the connecting groove (21) to the arc-shaped transverse groove (24) and is connected to the middle of the arc-shaped transverse groove (24). Two arc-shaped protrusions (26) are provided on one side of the arc-shaped transverse groove (24) close to the inlet (25). The two arc-shaped protrusions (26) are arranged on both sides of the inlet (25) and are connected to the inlet (25). A gap is left between the ends of the arc-shaped transverse groove (24), and the gap is used for limiting the placement of the limiting rod (22); the width of the inlet (25) is greater than or equal to the diameter of the limiting rod (22); the diameter of the circular structure at the end of the arc-shaped transverse groove (24) is equal to the diameter of the limiting rod (22); the arc-shaped transverse groove (24) is arranged in plurality in the radial direction of the connecting groove (21); the inlet (25) penetrates and connects the plurality of arc-shaped transverse grooves (24); and the limiting rod (22) is arranged in plurality in the radial direction of the joint (20) and the number is the same as the number of the arc-shaped transverse grooves (24).

7. The deep sampling device for soil investigation for ecological restoration according to claim 5 is characterized by: The drill tube (5) is a cylindrical structure, and a joint (20) is also provided on the outer wall of one end. A limit rod (22) is also provided on the outer wall of the joint (20) of the drill tube (5). A plurality of drilling teeth (31) are provided on the end of the drill tube (5) away from the joint (20).

8. The deep sampling device for soil investigation for ecological restoration according to claim 1 is characterized by: The plurality of electric heating plates (9) are arranged in a circular array with the axis of the drill tube (5) as the center, avoiding the injection hole (7) and not contacting the injection hole (7); a groove body is provided on the outside of the side wall of the drill tube (5); a power source (32) is installed in the groove body; a sealing cover (33) is installed on the external bolts of the groove body for sealing the groove body; the sealing cover (33) does not protrude from the groove body after installation.

9. The deep sampling device for soil investigation for ecological restoration according to claim 1, characterized in that: The side wall of the sampling tube (4) is incompletely cut from one end of the joint (20) to the other end to form a side opening (27), and the side opening (27) is fitted and sealed with a sealing plate (28). Slots (29) are opened in the side wall of the sampling tube (4) on both sides of the side opening (27), and plug strips (30) that are fitted and plugged into the slots (29) are fixedly connected on both sides of the sealing plate (28).

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