A detection device and method for soil remediation

Abstract

The present invention discloses a detection device and method for soil remediation, which relates to the technical field of soil remediation detection equipment. The detection device for soil remediation includes a machine base, a lifting platform that slides axially along the machine base, and guide columns provided on the lower surface of the lifting platform. It also includes a hollow ground insertion rod, the hollow ground insertion rod is fixed to the lower end of the guide column, and the lower end of the hollow ground insertion rod is detachably connected to a longitudinal drill bit through a connection component. Through the arrangement of multiple sampling tubes, this structure realizes multi-directional sample collection in the same plane, improves the accuracy of soil sample detection results. By controlling the sampling tubes to enter and exit the inside and outside of the hollow ground insertion rod, the samples inside the sampling tubes can be effectively protected, preventing the samples from being doped with soil of different layers, and the soil sampling effect is good, avoiding the dropping of soil samples.

Description

Technical Field

[0001] The present invention relates to the technical field of soil remediation detection equipment, and specifically relates to a detection device and method for soil remediation. Background Art

[0002] Soil remediation is a technical measure to restore the normal function of polluted soil. In current soil remediation work, before remediating polluted soil, random multi-point sampling needs to be carried out on the soil at this location to detect and determine the soil quality, that is, its pollution degree. Through the extraction and detection of soil samples, soil remediation can be more accurate, and the corresponding technical solutions for soil remediation can be determined more accurately, thereby accelerating the speed and working efficiency of soil remediation. When extracting soil samples, currently, the method of manual excavation and sampling is usually adopted. Operators cannot conveniently extract soils at different depths, and such operations are rather cumbersome and time-consuming, thus affecting the overall working efficiency.

[0003] In the Chinese patent with the publication number CN221898812U, a soil sampling device is disclosed. This structure is convenient for disassembling, assembling, maintaining, and cleaning the drilling head from the device through the provided second connector and second connection hole. During sampling, the drilling head is rotated downward into the formation by rotating the handle at the top of the device main body cylinder to screw out the soil in the formation for sampling.

[0004] Currently, the drill bits of soil sampling structures on the market are often spiral or cylindrical. In the former case, the sample adheres to the inner side of the spiral structure after sampling. The friction between the drill bit and the ground easily causes soil samples at different depth levels to be mixed together. In the latter case, the ground soil is extruded, and it is not easy to unload the material. Moreover, the soil sample at the specified depth is located at the bottommost end of the cylinder and is prone to falling due to shaking after sampling, resulting in a decrease in sampling efficiency and effect. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a detection device and method for soil remediation, which solves the problems raised in the background art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A detection device for soil remediation, comprising a machine base, a lifting platform slidable along the axial direction of the machine base, and guide columns provided on the lower surface of the lifting platform. It further includes a hollow ground-inserting rod, the hollow ground-inserting rod is fixed to the lower end of the guide column, and the lower end of the hollow ground-inserting rod is detachably connected to a longitudinal drill bit through a connection component; openings, there are multiple openings, and the multiple openings are evenly distributed in a circumferential shape on the outer side of the hollow ground-inserting rod near the longitudinal drill bit; a bottom plate, the bottom plate is slidably installed at the lower end inside the opening, and a sampling tube is detachably fixed on the upper surface of the bottom plate. One end of the bottom plate away from the axis of the hollow ground-inserting rod is fixed with a cover plate, and a transverse drill bit is fixed on the outer side of the cover plate; an upper plate, the upper plate is slidably installed at the upper end inside the opening, and a circumcision knife adapted to the sampling tube is provided on the upper plate; a central shaft, the central shaft is movably installed at the inner axis of the hollow ground-inserting rod, and a second conical platform is slidably installed on the central shaft, and the second conical platform is lifted and lowered to drive the bottom plate to move horizontally.

[0007] Further, a support seat is integrally formed at one end of the bottom plate facing the central shaft. A second moving cavity is opened inside the support seat. A push rod is slidably installed inside the second moving cavity. The upper end of the push rod is fixedly connected to the upper plate. A first return spring is installed between the upper end inside the second moving cavity and the bottom of the push rod on the outer side of the push rod; the outer diameter of the upper end of the second conical platform is smaller than the outer diameter of its lower end, and a guiding chute is provided on the side surface of the second conical platform. One end of the bottom plate facing the central shaft is fixed with a guiding slider slidably connected to the guiding chute; wherein, when the second conical platform moves downward, the guiding slider pulls the bottom plate to move inward towards the central shaft. When the second conical platform moves upward, the guiding slider pushes the bottom plate to move outward towards the central shaft. When the guiding slider is at the lowest end of the guiding chute, the second conical platform moves upward to drive the guiding slider to drive the bottom plate and the upper plate to move upward.

[0008] Further, a connecting ring is movably sleeved on the outer side of the central shaft above the second conical platform. The connecting ring is provided with a connecting guide rod, and one end of the connecting guide rod extends into the upper plate and is slidably connected to the upper plate.

[0009] Further, an electric telescopic cylinder is fixed at the upper end inside the hollow ground-inserting rod. The telescopic end of the electric telescopic cylinder is fixedly connected to the central shaft; a male contact switch is provided on the outer side of the upper plate, and a female contact switch corresponding to the male contact switch is provided on the outer side of the connecting ring. The female contact switch is electrically connected to the controller of the electric telescopic cylinder to control the operation of the electric telescopic cylinder.

[0010] Further, a first moving cavity is provided at the inner wall of the hollow ground-inserting rod above the opening. An upper protection plate slidably connected to the upper layer plate is slidably installed inside the first moving cavity. A first driving spring is installed between the upper end of the upper protection plate and the upper end inside the first moving cavity. A third moving cavity is provided inside the hollow ground-inserting rod below the opening. A lower protection plate slidably connected to the bottom plate is slidably installed inside the third moving cavity. A second driving spring is installed between the lower end of the lower protection plate and the lower end inside the third moving cavity. The first driving spring and the second driving spring expand to drive the upper protection plate and the lower protection plate to slide towards the opening direction respectively.

[0011] Further, the connecting component includes an installation cavity provided at the lower end of the hollow ground-inserting rod. An installation seat inserted into the installation cavity is fixed to the upper end of the longitudinal drill bit. A cavity is provided at the upper end inside the installation seat, and a jack is provided at the position of the cavity on the outer side of the installation seat. A fourth moving cavity is provided at the upper end position of the installation cavity on the side wall of the hollow ground-inserting rod. A U-shaped insertion rod is slidably installed inside the fourth moving cavity. The U-shaped insertion rod is in a horizontally placed "U" shape, and the length of the upper end of the U-shaped insertion rod is twice that of its lower end. The lower end of the U-shaped insertion rod is inserted into the jack, and the upper end of the U-shaped insertion rod is located above the installation seat. A second reset spring is installed between the inner wall of the fourth moving cavity and the U-shaped insertion rod.

[0012] Further, a first conical platform is fixed to the lower end of the central axis. The outer diameter of the upper end of the first conical platform is twice that of its lower end. The outer wall of the first conical platform abuts against the upper end of the U-shaped insertion rod to push the U-shaped insertion rod to move.

[0013] Further, a longitudinal chute is provided on the outer side of the central axis, and a longitudinal slider is provided inside the second conical platform. The longitudinal slider is slidably connected to the longitudinal chute.

[0014] Further, a limiting block is fixed to the upper surface of the bottom plate. A limiting cavity adapted to the limiting block is provided at the lower end of the sampling tube. A limiting ring is fixed to the lower surface of the upper layer plate. The limiting ring is sleeved on the outer side of the upper end of the sampling tube for fixing after the sampling tube is installed.

[0015] In addition, the present invention also provides a method for using a detection device for soil remediation, including the following steps:

[0016] S1. Move the machine base to the area to be sampled, install the sampling tube, control the lifting platform to descend, so that the guide column drives the hollow ground-inserting rod to descend, and the longitudinal drill bit reaches the specified depth;

[0017] S2. Control the electric telescopic cylinder to contract, so that the sampling tube moves to the outside of the hollow ground-inserting rod, and the cutting ring cuts the soil to obtain a soil sample;

[0018] S3. Control the electric telescopic cylinder to extend, move the sampling tube towards the central axis direction, cut off the soil sample, and make the soil sample stably enter the inside of the sampling tube;

[0019] S4. Control the lifting platform to move upward, move the longitudinal drill bit outside the soil, and then control the electric telescopic cylinder to contract, move the sampling tube outside the hollow ground-inserting rod, take out the sampling tube, and complete the soil sampling task.

[0020] The present invention has the following beneficial effects:

[0021] (1) For the detection device for soil remediation, through the arrangement of multiple sampling tubes, multi-directional sampling in the same plane is realized, the accuracy of soil sample detection results is improved. By controlling the sampling tube to enter and exit the inside and outside of the hollow ground-inserting rod, the sample inside the sampling tube can be effectively protected, preventing the sample from being doped with soil of different layers, and the soil sampling effect is good, avoiding the soil sample from falling.

[0022] (2) For the detection device for soil remediation, through the arrangement of the upper protective plate, the lower protective plate and the support seat, the infiltration of soil into the inside of the hollow ground-inserting rod can be effectively reduced, which is beneficial to improving the stability of the equipment working state, reducing the mixture of soil of different layers, and further improving the accuracy of the detection results.

[0023] (3) For the detection device for soil remediation, through the insertion connection between the U-shaped insertion rod and the insertion hole, the number of fixing bolts used can be reduced, which is convenient for the later disassembly of the mounting seat, facilitating the maintenance of the longitudinal drill bit and the discharge of soil impurities inside the hollow ground-inserting rod, and improving the practicability of the equipment.

[0024] Of course, it is not necessary for any product implementing the present invention to simultaneously achieve all the above-mentioned advantages. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of the detection device for soil remediation;

[0026] Figure 2 is the detection device for soil remediation Figure 1 from another perspective;

[0027] Figure 3 is the detection device for soil remediation Figure 2 an enlarged view of part A therein;

[0028] Figure 4 is a schematic diagram of the internal structure of the hollow ground-inserting rod in the detection device for soil remediation;

[0029] Figure 5 is the detection device for soil remediation Figure 4 an enlarged view of part B therein;

[0030] Figure 6 Schematic diagram of the installation structure of the second conical platform in the detection device for soil remediation;

[0031] Figure 7 Schematic diagram of the installation structure of the bottom plate in the detection device for soil remediation;

[0032] Figure 8 In the detection device for soil remediation Figure 7 front view;

[0033] Figure 9 Schematic diagram of the installation structure of the upper layer plate in the detection device for soil remediation;

[0034] Figure 10 Schematic diagram of the connection between the second conical platform and the hollow ground-inserting rod in the detection device for soil remediation;

[0035] Figure 11 Schematic diagram of the installation structure of the longitudinal drill bit in the present invention.

[0036] In the figure, 1, machine base; 2, lifting platform; 3, through hole; 4, guide post; 5, lead screw; 6, hollow ground-inserting rod; 7, opening; 8, bottom plate; 9, support seat; 10, upper layer plate; 11, cover plate; 12, transverse drill bit; 13, sampling tube; 14, circumcision knife; 15, upper protective plate; 16, partition board; 17, electric telescopic cylinder; 18, central axis; 19, first conical platform; 20, longitudinal drill bit; 21, mounting seat; 22, mounting cavity; 23, second conical platform; 24, first moving cavity; 25, first driving spring; 26, second moving cavity; 27, ejector rod; 28, first reset spring; 29, third moving cavity; 30, lower protective plate; 31, second driving spring; 32, limit block; 33, limit ring; 34, guiding chute; 35, connecting ring; 36, longitudinal chute; 37, fourth moving cavity; 38, second reset spring; 39, U-shaped insertion rod; 40, insertion hole; 41, fixing bolt; 42, male contact switch; 43, female contact switch; 44, guiding slider; 45, connecting guide rod; 46, limiting cavity; 47, longitudinal slider; 48, positioning column; 49, positioning chute; 50, cavity. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to Figure 1 - Figure 11, an embodiment of the present invention provides a technical solution: a detection device for soil remediation, including a machine base 1, a lifting platform 2 that slides axially along the machine base 1, and a guide post 4 provided on the lower surface of the lifting platform 2. Preferably, a lead screw 5 is installed on the machine base 1, the lead screw 5 is threadedly connected to the lifting platform 2, and a first driving member for driving the lead screw 5 to rotate is fixed to the upper end of the machine base 1. By rotating the lead screw 5, the lifting platform 2 slides inside the machine base 1 to achieve the lifting of the lifting platform 2. In addition, scale lines can be set on one side of the machine base 1, and a pointer is installed on one side of the lifting platform 2. Through the cooperation between the pointer and the scale lines, the lifting height of the lifting platform 2 can be measured, which is conducive to controlling the soil sampling depth. Additionally, a second driving member for driving the guide post 4 to rotate is provided at the upper end of the lifting platform 2 to facilitate the insertion of the guide post 4 into the ground. Both the first driving member and the second driving member can be implemented by a reduction motor. A through hole 3 is provided at the bottom of the machine base 1 opposite to the guide post 4.

[0039] The detection device for soil remediation provided in this embodiment further includes a hollow ground-inserting rod 6. The hollow ground-inserting rod 6 is fixed to the lower end of the guide post 4, and the lower end of the hollow ground-inserting rod 6 is detachably connected to a longitudinal drill bit 20 through a connecting component to facilitate drilling into the ground. A plurality of openings 7 are evenly distributed in a circular shape at a position near the longitudinal drill bit 20 on the outer side of the hollow ground-inserting rod 6. A bottom plate 8 is slidably installed at the lower end inside the opening 7, and a sampling tube 13 is detachably fixed to the upper surface of the bottom plate 8. Preferably, the sampling tube 13 is made of hard plastic. A cover plate 11 is fixed to one end of the bottom plate 8 away from the axis of the hollow ground-inserting rod 6. The cover plate 11 can be used to close the opening 7, mainly for closing the opening 7 during the descent of the longitudinal drill bit 20 to prevent soil from entering the inside of the hollow ground-inserting rod 6 through the opening 7. A transverse drill bit 12 is fixed to the outside of the cover plate 11. Preferably, the transverse drill bit 12 is a conical cutter head or a conical structure, mainly for pushing the soil layer when the cover plate 11 moves outward to reduce the resistance when the cover plate 11 moves underground.

[0040] To achieve soil sampling, the detection device for soil remediation provided in this embodiment further includes an upper layer plate 10. The upper layer plate 10 is slidably installed at the upper end inside the opening 7, and a circumferential cutting knife 14 adapted to the sampling tube 13 is provided on the upper layer plate 10. By controlling the upward movement of the upper layer plate 10 underground, the circumferential cutting knife 14 cuts the underground soil for sampling, and the cut soil sample falls into the sampling tube 13 to achieve soil sampling.

[0041] To further control the movement of the upper layer plate 10 and the bottom plate 8, this solution further includes a central shaft 18. The central shaft 18 is movably installed at the central axis inside the hollow ground-inserting rod 6, and a second conical platform 23 is slidably installed on the central shaft 18. The second conical platform 23 moves up and down to drive the bottom plate 8 to move horizontally. Due to the structural characteristics of the second conical platform 23, the side wall of the second conical platform 23 pushes the bottom plate 8 to move, thereby realizing the expansion and contraction of the bottom plate 8.

[0042] AsFigure 3 - Figure 8 As shown, for the convenience of loading and unloading the sampling tube 13, a support base 9 is integrally formed at one end of the bottom plate 8 facing the central axis 18. The support base 9 mainly prevents soil from seeping into the inside of the hollow ground-inserting rod 6 between the bottom plate 8 and the upper plate 10 when the bottom plate 8 moves outward from the hollow ground-inserting rod 6. A second moving cavity 26 is provided inside the support base 9, and a push rod 27 is slidably installed inside the second moving cavity 26. The upper end of the push rod 27 is fixedly connected to the upper plate 10, and a first return spring 28 is installed between the upper end inside the second moving cavity 26 and the bottom of the push rod 27 on the outer side of the push rod 27. By pulling the upper plate 10 upward, the distance between the upper plate 10 and the bottom plate 8 is increased, which is beneficial to the loading and unloading of the sampling tube 13. After the sampling tube 13 is installed, the first return spring 28 contracts, so that the upper plate 10 moves downward to make the upper plate 10 abut against the upper end of the support base 9.

[0043] To drive the bottom plate 8 and the upper plate 10, in this solution, the outer diameter of the upper end of the second conical table 23 is smaller than the outer diameter of its lower end, and a guiding chute 34 is provided on the side of the second conical table 23. A guiding slider 44 slidably connected to the guiding chute 34 is fixed at one end of the bottom plate 8 facing the central axis 18.

[0044] Among them, in the initial state, the guiding slider 44 is located at the uppermost end of the guiding chute 34. At this time, the horizontal distance from the guiding slider 44 to the axis of the second conical platform 23 is the smallest, so that the bottom plate 8 and the upper plate 10 contract and enter the hollow ground-inserting rod 6, and the cover plate 11 closely adheres to the outside of the opening 7, thereby preventing soil from entering the hollow ground-inserting rod 6. When the second conical platform 23 moves upward, relative sliding occurs between the guiding slider 44 and the guiding chute 34, causing the guiding slider 44 to gradually move to the lower end of the guiding chute 34, so that the horizontal distance from the guiding slider 44 to the axis of the second conical platform 23 gradually increases, further causing the guiding slider 44 to push the bottom plate 8 outward to move, and then causing the cover plate 11 to drive the transverse drill bit 12 to break the lateral soil. When the guiding slider 44 is located at the lowermost end of the guiding chute 34, at this time, the second conical platform 23 continues to move upward so that the lower end of the guiding chute 34 on the second conical platform 23 pushes the guiding slider 44 to move upward synchronously with the second conical platform 23, thereby driving the bottom plate 8 and the upper plate 10 to move upward to apply a thrust to the circumcision knife 14, so that the circumcision knife 14 cuts the soil sample, and further causes the soil sample to enter the sampling tube 13. After the sampling is completed, the second conical platform 23 moves downward, further causing the guiding slider 44 to be located at the uppermost end of the guiding chute 34. At this time, the guiding slider 44 pulls the bottom plate 8 to move inward toward the central axis 18, so that the sampling tube 13 moves toward the central axis 18 direction, realizing the cutting of the sampled soil, and making the soil stably enter the sampling tube 13. In addition, after the sampling tube 13 enters the hollow ground-inserting rod 6, the sample inside the sampling tube 13 can be effectively protected, preventing the sample from being doped with soil of different layers, and the soil sampling effect is good, avoiding the dropping of the soil sample.

[0045] As Figure 6 - Figure 9 shown, to better assist the up and down movement of the upper plate 10, a connecting ring 35 is movably sleeved outside the central axis 18 of this embodiment above the second conical platform 23. The connecting ring 35 is provided with a connecting guide rod 45, and one end of the connecting guide rod 45 extends into the upper plate 10 and is slidably connected with the upper plate 10.

[0046] In this solution, through the sliding connection between the connecting guide rod 45 and the upper plate 10, the stability of the upper plate 10 during movement is improved. In addition, through the push of the upper end of the second conical platform 23, the upward movement of the upper plate 10 is more effectively controlled, so as to facilitate the circumcision knife 14 to cut the soil sample.

[0047] As Figure 4 - Figure 9As shown, an electric telescopic cylinder 17 is fixed at the upper end inside the hollow ground-inserting rod 6 of the present solution. The telescopic end of the electric telescopic cylinder 17 is fixedly connected to the central shaft 18. Specifically, a partition plate 16 is fixed inside the hollow ground-inserting rod 6, and a through hole is provided on the partition plate 16 to facilitate the movement of the central shaft 18. Through the arrangement of the partition plate 16, it is convenient to separate the electric telescopic cylinder 17 from the second conical platform 23, avoiding the influence of soil on the operation of the electric telescopic cylinder 17 when the equipment is inverted.

[0048] In addition, to control the working state of the electric telescopic cylinder 17, a male contact switch 42 is provided outside the upper layer plate 10, and a female contact switch 43 corresponding to the male contact switch 42 is provided outside the connecting ring 35. The female contact switch 43 is electrically connected to the controller of the electric telescopic cylinder 17 to control the operation of the electric telescopic cylinder 17. Specifically, when the male contact switch 42 contacts the female contact switch 43, the electric telescopic cylinder 17 stops working. At this time, manual control of the electric telescopic cylinder 17 is required to prevent the second conical platform 23 from continuing to descend.

[0049] As Figure 4 - Figure 8 shown, to further prevent soil from entering the inside of the hollow ground-inserting rod 6 during the sampling process, a first movable cavity 24 is provided on the inner wall of the hollow ground-inserting rod 6 above the opening 7. An upper protection plate 15 slidably connected to the upper layer plate 10 is slidably installed inside the first movable cavity 24. A first driving spring 25 is installed between the upper end of the upper protection plate 15 and the upper end inside the first movable cavity 24. Preferably, a notch adapted to the cutting ring knife 14 is provided at the lower end of the upper protection plate 15 to avoid jamming. Specifically, during use, the upper protection plate 15 is pushed by the first driving spring 25, so that the upper protection plate 15 always abuts against the upper surface of the upper layer plate 10, thereby preventing soil from entering the inside of the hollow ground-inserting rod 6 from the upper end of the opening 7.

[0050] In addition, a third movable cavity 29 is provided inside the hollow ground-inserting rod 6 below the opening 7. A lower protection plate 30 slidably connected to the bottom plate 8 is slidably installed inside the third movable cavity 29. A second driving spring 31 is installed between the lower end of the lower protection plate 30 and the lower end inside the third movable cavity 29. During use, the lower protection plate 30 is pushed by the second driving spring 31, so that the lower protection plate 30 always abuts against the lower surface of the bottom plate 8, thereby preventing soil from entering the inside of the hollow ground-inserting rod 6 from the lower end of the opening 7.

[0051] Among them, the first driving spring 25 and the second driving spring 31 expand to drive the upper protection plate 15 and the lower protection plate 30 to slide toward the opening 7 direction respectively.

[0052] As Figure 4 、 Figure 6 and Figure 11As shown in the figure, the connection component provided in this embodiment includes an installation cavity 22 opened at the lower end of the hollow ground-inserting rod 6. The upper end of the longitudinal drill bit 20 is fixed with an installation seat 21 inserted into the installation cavity 22. Among them, the installation cavity 22 provided in this solution is conducive to the insertion of the installation seat 21 and can facilitate the discharge of soil impurities inside the hollow ground-inserting rod 6 after the installation seat 21 is disassembled. In addition, an inner cavity 50 is opened at the upper end inside the installation seat 21, and a jack 40 is opened at the position of the outer side of the installation seat 21 corresponding to the inner cavity 50. Further, to facilitate the quick and precise installation of the installation seat 21, a positioning chute 49 is opened on the side wall of the installation seat 21, and a positioning post 48 slidably connected to the positioning chute 49 is provided on the inner wall of the installation cavity 22.

[0053] In addition, to fix the installation seat 21, a fourth moving cavity 37 is opened on the side wall of the hollow ground-inserting rod 6 at the upper end position of the installation cavity 22. A U-shaped insertion rod 39 is slidably installed inside the fourth moving cavity 37. The U-shaped insertion rod 39 is a horizontally placed "U" shape, and the upper end length of the U-shaped insertion rod 39 is twice the lower end length. The lower end of the U-shaped insertion rod 39 is inserted into the jack 40, and the upper end of the U-shaped insertion rod 39 is located above the installation seat 21. A second return spring 38 is installed between the inner wall of the fourth moving cavity 37 and the U-shaped insertion rod 39. It should be noted that a fixing bolt 41 is provided between the middle or lower end of the installation seat 21 and the lower end of the hollow ground-inserting rod 6 to improve the connection stability between the installation seat 21 and the hollow ground-inserting rod 6 and prevent the installation seat 21 from detaching from the hollow ground-inserting rod 6 due to operation errors. By inserting the U-shaped insertion rod 39 into the jack 40, the number of fixing bolts 41 used can be reduced, thus facilitating the later disassembly of the installation seat 21, the maintenance of the longitudinal drill bit 20, and the discharge of soil impurities inside the hollow ground-inserting rod 6.

[0054] Specifically, in this solution, by pushing the upper end of the U-shaped insertion rod 39 to move, the lower end of the U-shaped insertion rod 39 moves synchronously, so that the lower end of the U-shaped insertion rod 39 is separated from the jack 40, which is beneficial to the disassembly of the installation seat 21. During the installation process of the installation seat 21, the second return spring 38 expands to drive the U-shaped insertion rod 39 to move towards the inner cavity 50, so that the lower end of the U-shaped insertion rod 39 is inserted into the jack 40 to realize the installation and fixation of the installation seat 21.

[0055] As Figure 6 、 Figure 10 and Figure 11 shown, to drive the U-shaped insertion rod 39, a first tapered platform 19 is fixed at the lower end of the central shaft 18. The outer diameter of the upper end of the first tapered platform 19 is twice the outer diameter of its lower end. The outer wall of the first tapered platform 19 abuts against the upper end of the U-shaped insertion rod 39 to push the U-shaped insertion rod 39 to move, so that the lower end of the U-shaped insertion rod 39 is separated from the jack 40.

[0056] As Figure 6 、Figure 7 , Figure 8 and Figure 10 As shown in Figure 8 and Figure 10 , in this embodiment, a longitudinal chute 36 is provided on the outside of the central shaft 18, and a longitudinal slider 47 is provided inside the second conical platform 23. The longitudinal slider 47 is slidably connected to the longitudinal chute 36. When the longitudinal slider 47 moves to the lowermost end of the longitudinal chute 36, the upward movement of the central shaft 18 can drive the upward movement of the second conical platform 23, so as to facilitate the upward movement of the bottom plate 8 and the upper plate 10, so that the cutting ring knife 14 cuts the soil sample. When the male contact switch 42 contacts the female contact switch 43, the electric telescopic cylinder 17 stops working to prevent the first conical platform 19 from pushing the U-shaped insertion rod 39 to move due to the continuous elongation of the electric telescopic cylinder 17. At this time, the electric telescopic cylinder 17 is manually controlled to continue to elongate, so that the first conical platform 19 moves downward, further pushing the U-shaped insertion rod 39 to move.

[0057] As Figure 5 and Figure 8 As shown in Figure 5 and Figure 8 , to improve the stability of the sampling tube 13 after installation, a limiting block 32 is fixed on the upper surface of the bottom plate 8, a limiting cavity 46 adapted to the limiting block 32 is provided at the lower end of the sampling tube 13, a limiting ring 33 is fixed on the lower surface of the upper plate 10, and the limiting ring 33 is sleeved on the upper end of the outside of the sampling tube 13 for fixing the sampling tube 13 after installation. Through the socket between the limiting block 32 and the limiting cavity 46 and the socket between the limiting ring 33 and the sampling tube 13, the upper and lower ends of the sampling tube 13 are limited, thereby improving the stability of the sampling tube 13 after installation.

[0058] During use (operation), move the machine base 1 to the designated position, control the lowering height of the lifting platform 2, so as to control the penetration depth of the longitudinal drill bit 20. After the longitudinal drill bit 20 reaches the designated depth position, start the electric telescopic cylinder 17, pull the central shaft 18 upward through the electric telescopic cylinder 17, and further drive the second conical platform 23 to move upward. When the second conical platform 23 moves upward, the guiding slider 44 and the guiding chute 34 have relative sliding, so that the guiding slider 44 gradually moves to the lower end of the guiding chute 34, thereby making the horizontal distance from the guiding slider 44 to the axis of the second conical platform 23 gradually increase, and further making the guiding slider 44 push the bottom plate 8 outward to move, and then making the cover plate 11 drive the transverse drill bit 12 to break the lateral soil, which is beneficial to place the cutting ring 14 and the sampling tube 13 outside the hollow ground-inserting rod 6. When the guiding slider 44 is located at the lowermost end of the guiding chute 34, at this time, the second conical platform 23 continues to move upward so that the lower end of the guiding chute 34 on the second conical platform 23 pushes the guiding slider 44 to move upward synchronously with the second conical platform 23, thereby driving the bottom plate 8 and the upper plate 10 to move upward to apply a thrust to the cutting ring 14, so that the cutting ring 14 cuts the soil sample, and further makes the soil sample enter the inside of the sampling tube 13. During this process, the upper protective plate 15 is pushed by the first driving spring 25, so that the upper protective plate 15 always abuts against the upper surface of the upper plate 10, thereby preventing soil from entering the inside of the hollow ground-inserting rod 6 from the upper end of the opening 7. The lower protective plate 30 is pushed by the second driving spring 31, so that the lower protective plate 30 always abuts against the lower surface of the bottom plate 8, thereby preventing soil from entering the inside of the hollow ground-inserting rod 6 from the lower end of the opening 7 to ensure the cleanliness inside the hollow ground-inserting rod 6.

[0059] After the sampling is completed, the electric telescopic cylinder 17 acts, and the central shaft 18 is pushed downward through the electric telescopic cylinder 17, so that the second conical platform 23 moves downward, and further makes the guiding slider 44 located at the uppermost end of the guiding chute 34. At this time, the guiding slider 44 pulls the bottom plate 8 to move inward toward the central shaft 18, so that the sampling tube 13 moves toward the central shaft 18 direction, realizes the cutting of the sampled soil, and makes the soil stably enter the inside of the sampling tube 13. In addition, after the sampling tube 13 enters the inside of the hollow ground-inserting rod 6, the sample inside the sampling tube 13 can be effectively protected, preventing the sample from being doped with soils of different layers, and the soil sampling effect is good, avoiding the dropping of the soil sample. During this process, the upper plate 10 moves toward the connecting ring 35 direction until the male contact switch 42 contacts the female contact switch 43. At this time, the electric telescopic cylinder 17 stops working to avoid the electric telescopic cylinder 17 continuing to extend and making the first conical platform 19 push the U-shaped insertion rod 39 to move.

[0060] Control the lifting platform 2 to rise, so as to control the longitudinal drill bit 20 to move out of the soil. At this time, control the bottom plate 8 to extend out of the hollow ground-inserting rod 6 through the electric telescopic cylinder 17, and pull the upper plate 10 upward, so as to increase the distance between the upper plate 10 and the bottom plate 8, which is beneficial to the loading and unloading of the sampling tube 13.

[0061] When there are soil impurities inside the hollow ground-inserting rod 6, manually control the electric telescopic cylinder 17 to make the electric telescopic cylinder 17 continue to extend, so that the first conical platform 19 moves downward, further pushing the U-shaped inserting rod 39 to move, so that the lower end of the U-shaped inserting rod 39 is separated from the jack 40. Through the insertion between the U-shaped inserting rod 39 and the jack 40, the number of fixing bolts 41 can be reduced, so as to facilitate the later disassembly of the mounting seat 21, facilitate the maintenance of the longitudinal drill bit 20 and the discharge of soil impurities inside the hollow ground-inserting rod 6, and improve the practicability of the equipment.

[0062] In addition, the present invention also provides a usage method of a detection device for soil remediation, including the following steps:

[0063] S1. Move the machine base 1 to the area to be sampled, install the sampling tube 13, control the lifting platform 2 to descend, so that the guide post 4 drives the hollow ground-inserting rod 6 to descend, and make the longitudinal drill bit 20 reach the specified depth;

[0064] S2. Control the electric telescopic cylinder 17 to contract, so that the sampling tube 13 moves to the outside of the hollow ground-inserting rod 6, and make the circumferential cutting knife 14 cut the soil to obtain a soil sample;

[0065] S3. Control the electric telescopic cylinder 17 to extend, so that the sampling tube 13 moves towards the central axis 18 direction, realize the cutting of the soil sample, and make the soil sample stably enter the inside of the sampling tube 13;

[0066] S4. Control the lifting platform 2 to move upward, so that the longitudinal drill bit 20 moves out of the soil, and then control the electric telescopic cylinder 17 to contract again, so that the sampling tube 13 moves to the outside of the hollow ground-inserting rod 6, take out the sampling tube 13, and complete the soil sampling task.

Claims

1. A soil remediation detection device, comprising a machine base (1), a lifting platform (2) sliding along the axial direction of the machine base (1), and a guide column (4) arranged on the lower surface of the lifting platform (2), characterized in that: Also includes: A hollow ground-inserting rod (6), wherein the hollow ground-inserting rod (6) is fixed to the lower end of the guide column (4), and the lower end of the hollow ground-inserting rod (6) is detachably connected to the longitudinal drill bit (20) via a connecting assembly; An opening (7), wherein a plurality of the openings (7) are provided, and the plurality of openings (7) are evenly distributed in a circular shape on the outside of the hollow earth-inserting rod (6) near the longitudinal drill bit (20); A bottom plate (8), the bottom plate (8) being slidably mounted on the lower inner end of the opening (7), and a sampling tube (13) being detachably fixed on the upper surface of the bottom plate (8), a cover plate (11) being fixed on one end of the bottom plate (8) away from the axis of the hollow ground-inserting rod (6), and a transverse drill bit (12) being fixed on the outer side of the cover plate (11); An upper plate (10), the upper plate (10) being slidably mounted on the inner upper end of the opening (7), and a circular cutting knife (14) adapted to the sampling tube (13) being provided on the upper plate (10); A central axis (18), the central axis (18) being movably mounted at the inner axis center of the hollow ground-inserting rod (6), and a second conical platform (23) being slidably mounted on the central axis (18), the second conical platform (23) being raised and lowered to drive the bottom plate (8) to move laterally; A longitudinal slide groove (36) is provided on the outer side of the central shaft (18), a longitudinal slide block (47) is provided inside the second conical platform (23), and the longitudinal slide block (47) is slidably connected to the longitudinal slide groove (36); The outer diameter of the upper end of the second conical platform (23) is smaller than the outer diameter of the lower end thereof, and a guide slide groove (34) is provided on the side of the second conical platform (23); a guide sliding block (44) slidably connected to the guide slide groove (34) is fixed to one end of the bottom plate (8) facing the central axis (18); The second conical platform (23) moves downward so that the guide slider (44) pulls the bottom plate (8) toward the inside of the central axis (18), and the second conical platform (23) moves upward so that the guide slider (44) pushes the bottom plate (8) toward the outside of the central axis (18). When the guide slider (44) is located at the lowermost end of the guide slot (34), the second conical platform (23) moves upward so that the guide slider (44) drives the bottom plate (8) and the upper plate (10) upward.

2. A soil remediation detection device according to claim 1, characterized in that: A support seat (9) is integrally formed at one end of the bottom plate (8) facing the central axis (18), a second movable cavity (26) is provided inside the support seat (9), a push rod (27) is slidably mounted inside the second movable cavity (26), an upper end of the push rod (27) is fixedly connected to the upper plate (10), and a first return spring (28) is mounted on the outer side of the push rod (27) between the upper end inside the second movable cavity (26) and the bottom of the push rod (27).

3. A soil remediation detection device according to claim 2, characterized in that: A connecting ring (35) is provided on the outer side of the central axis (18) and is movable above the second conical platform (23). The connecting ring (35) is provided with a connecting guide rod (45). One end of the connecting guide rod (45) extends into the interior of the upper plate (10) and is slidably connected to the upper plate (10).

4. A soil remediation detection device according to claim 3, characterized in that: An electric telescopic cylinder (17) is fixed to the upper end of the hollow ground-inserting rod (6), and the telescopic end of the electric telescopic cylinder (17) is fixedly connected to the central axis (18); A contact switch male head (42) is provided on the outer side of the upper plate (10), and a contact switch female head (43) corresponding to the contact switch male head (42) is provided on the outer side of the connecting ring (35); the contact switch female head (43) is electrically connected to a controller of the electric telescopic cylinder (17) to control the operation of the electric telescopic cylinder (17).

5. A soil remediation detection device according to claim 4, characterized in that: The inner wall of the hollow ground-inserting rod (6) is provided with a first movable cavity (24) at the upper end of the opening (7); an upper protective plate (15) slidably connected to the upper plate (10) is slidably mounted inside the first movable cavity (24); a first driving spring (25) is mounted between the upper end of the upper protective plate (15) and the upper end of the first movable cavity (24); A third movable cavity (29) is provided inside the hollow ground-inserting rod (6) at the lower end of the opening (7); a lower protective plate (30) slidably connected to the bottom plate (8) is slidably mounted inside the third movable cavity (29); a second driving spring (31) is mounted between the lower end of the lower protective plate (30) and the lower end of the third movable cavity (29); The first drive spring (25) and the second drive spring (31) are relaxed to respectively drive the upper protection plate (15) and the lower protection plate (30) to slide towards the opening (7).

6. A soil remediation detection device according to claim 5, characterized in that: The connection assembly comprises a mounting cavity (22) formed at the lower end of the hollow ground-inserting rod (6); a mounting seat (21) plugged into the mounting cavity (22) is fixed at the upper end of the longitudinal drill bit (20); a cavity (50) is formed at the upper end of the mounting seat (21); and a plug hole (40) is formed at the position of the cavity (50) on the outer side of the mounting seat (21); A fourth movable cavity (37) is provided on the side wall of the hollow ground rod (6) at the upper end of the mounting cavity (22). A U-shaped plug rod (39) is slidably mounted inside the fourth movable cavity (37). The U-shaped plug rod (39) is a horizontally placed "U"-shaped structure, and the length of the upper end of the U-shaped plug rod (39) is twice the length of the lower end. The lower end of the U-shaped plug rod (39) is plugged into the insertion hole (40), and the upper end of the U-shaped plug rod (39) is located above the mounting seat (21). A second return spring (38) is installed between the inner wall of the fourth movable cavity (37) and the U-shaped plug rod (39).

7. A soil remediation detection device according to claim 6, characterized in that: A first conical platform (19) is fixed to the lower end of the central axis (18); the outer diameter of the upper end of the first conical platform (19) is twice the outer diameter of the lower end; the outer wall of the first conical platform (19) abuts against the upper end of the U-shaped insertion rod (39), so that the first conical platform (19) pushes the U-shaped insertion rod (39) to move.

8. A soil remediation detection device according to claim 1, characterized in that: A limiting block (32) is fixed on the upper surface of the bottom plate (8), a limiting cavity (46) adapted to the limiting block (32) is provided at the lower end of the sampling tube (13), and a limiting ring (33) is fixed on the lower surface of the upper plate (10), the limiting ring (33) being sleeved on the outer upper end of the sampling tube (13) for fixing the sampling tube (13) after installation.

9. A method for using a soil remediation detection device, according to a soil remediation detection device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, moving the machine base (1) to the area to be sampled, installing the sampling tube (13), controlling the lifting platform (2) to descend, causing the guide column (4) to drive the hollow ground-inserting rod (6) downward, and causing the longitudinal drill bit (20) to reach a specified depth; S2, controlling the electric telescopic cylinder (17) to retract, so that the sampling tube (13) moves to the outside of the hollow ground-inserting rod (6), and the circular cutting knife (14) cuts the soil to obtain a soil sample; S3, controlling the electric telescopic cylinder (17) to extend, so that the sampling tube (13) moves toward the central axis (18), thereby cutting off the soil sample and allowing the soil sample to stably enter the interior of the sampling tube (13); S4, control the lifting platform (2) to move upward, so that the longitudinal drill bit (20) moves outside the soil, and control the electric telescopic cylinder (17) to retract again, so that the sampling tube (13) moves to the outside of the hollow ground-inserting rod (6), and take out the sampling tube (13), thereby completing the soil sampling task.

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