Soil sampling equipment for environmental monitoring and sampling method thereof

Abstract

The invention discloses soil sampling equipment for environmental monitoring and a sampling method of the soil sampling equipment, and belongs to the technical field of soil sampling. The hollow rod is provided with a conical head; the hollow rod is provided with a spiral bump; the hollow rod is provided with a controller assembly; the controller assembly is provided with a layered material taking assembly and a sealing assembly, and the sealing assembly is connected with the hollow rod. The layered material taking assembly comprises a driving assembly and a detachable sampling assembly, the driving assembly is connected with the controller assembly, the driving assembly is provided with the detachable sampling assembly, and the driving assembly and the sealing assembly are both electrically connected with the controller assembly; and quick-connection drill rods for quick connection are connected between the controller assembly and the drill rods and between the adjacent drill rods. The invention has the following technical effects: multi-layer stratified sampling is realized, mutual interference is avoided, the operation is simple, and repeated soil sampling and unloading are not needed.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling, and in particular to a soil sampling device and a sampling method thereof for environmental monitoring. Background Art

[0002] Environmental monitoring refers to determining environmental quality and its changing trends by measuring the representative values ​​of factors that affect soil environmental quality. Environmental monitoring uses sampling equipment to take soil samples.

[0003] For example, Chinese patent CN117451408B discloses a sampling device for soil environment monitoring, which relates to the field of soil sampling technology and includes a receiving plate, a lifting mechanism and a sampling mechanism; the upper surface of the receiving plate is bolted with a mounting plate, the top of the mounting plate is fixedly provided with horizontally distributed trusses, and the number of trusses is two, the top of the mounting plate and one side of the trusses is fixedly provided with a storage box, and the tops of the two trusses are fixedly provided with a top plate; the lifting mechanism includes a hydraulic press installed on the upper surface of the top plate. This scheme ultimately realizes the outer cylinder and inner cylinder rotating in both directions. The outer cylinder with an annular serrated structure can ensure that the soil is crushed quickly, and the inner cylinder with an annular straight knife shape can well cut and squeeze the soil in the middle into the inner cylinder to form a sample. With the rotation sampling, the soil can be easily crushed, and the reaction force during descent allows the inner cylinder to enter better. At the same time, the rotation of the inner cylinder can also ensure that the complete soil layer can be collected.

[0004] However, the above sampling equipment is used for sampling at deeper locations in that the specific operation is to first collect soil and then go down into the soil. It takes multiple cycles to sample at a deeper location, which is not conducive to rapid sampling. At the same time, soil at different depths cannot be separated and tested. The soil needs to be layered after sampling before taking the soil, which is more troublesome to operate.

[0005] Based on this, the present invention designs a soil sampling device and a sampling method for environmental monitoring to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a soil sampling device and a sampling method for environmental monitoring.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A soil sampling device for environmental monitoring, comprising a hollow rod and a drill rod:

[0009] A conical head is connected to the bottom of the hollow rod;

[0010] The outer wall of the hollow rod is spirally connected with a spiral protrusion;

[0011] A controller assembly for controlling the soil sampling device is connected to the top of the hollow rod;

[0012] A layered material taking component for layered sampling and a sealing component for simultaneously opening or closing multiple groups of sampling ports are installed in the controller component, and the sealing component is connected to the hollow rod;

[0013] The layered material taking component includes a driving component and a detachable sampling component, the driving component is connected to the controller component, the driving component is connected with the detachable sampling components at equal intervals, the rotation center axis of the detachable sampling component is misaligned with the center axis of the hollow rod, the detachable sampling component is arranged at a location where the driving component is arranged in a one-to-one correspondence with the sampling port arranged by the sealing component, and the driving component and the sealing component are both electrically connected to the controller component;

[0014] A quick-connect drill rod for quick connection is connected between the controller component and the drill rod as well as between adjacent drill rods.

[0015] Furthermore, the controller assembly includes a mounting tube, a wireless transceiver, a battery and a controller. The mounting tube is fixedly installed on the top of the hollow rod. The wireless transceiver, the battery and the controller are all fixedly installed on the top of the mounting tube. The controller is electrically connected to the wireless transceiver and the battery. The controller is connected to an external control terminal through the wireless transceiver.

[0016] Furthermore, the sealing assembly includes a first arcuate groove, an arcuate baffle, a first motor, an inner cylinder, a straight plate, a second arcuate groove, a gear ring and an arcuate rack. The inner cylinder is fixedly installed at the bottom of the hollow rod, the top of the inner cylinder is fixedly connected to the bottom of the mounting cylinder, the side wall of the inner cylinder is provided with second arcuate grooves at equal intervals, the outer wall of the hollow rod is provided with first arcuate grooves corresponding to the second arcuate grooves at equal intervals, the first arcuate groove and the second arcuate groove are combined into a sampling port, the first arcuate groove and the second arcuate groove are of the same size, the outer wall of the inner cylinder and the inner wall of the hollow rod are respectively fitted and slidably connected with the inner wall and the outer wall of the arcuate baffle, the side wall of the arcuate baffle is fixedly connected with a straight plate, the top of the straight plate is fixedly connected with an arcuate rack, the arcuate rack is meshed and connected with the gear ring, the first motor is fixedly installed at the bottom of the mounting cylinder, the driving end of the first motor is fixedly connected to the gear ring, and the first arcuate groove is arranged in a one-to-one correspondence with the detachable sampling assembly;

[0017] The size of the arc-shaped baffle is 1.2 times the size of the first arc-shaped groove.

[0018] Furthermore, the driving assembly includes a worm wheel, a straight shaft, a worm and a second motor. The second motor is fixedly installed at the top of the mounting tube, the worm is fixedly installed at the output end of the second motor, the worm wheel and the worm are meshingly connected, the straight shaft is fixedly installed in the mounting hole of the worm wheel, the bottom of the mounting tube is rotatably connected to the straight shaft through a bearing, and the detachable sampling assembly is installed at equal intervals on the position of the straight shaft located on the hollow rod.

[0019] Furthermore, the central axis of the straight shaft and the central axis of the hollow rod are arranged in a staggered manner.

[0020] Furthermore, the detachable sampling assembly includes an L-shaped hanging rod, an arc-shaped cover plate, an arc-shaped plate, an arc-shaped groove, an L-shaped slide groove, an inclined cover plate and a tapered block. The arc-shaped plate is fixedly installed on the outer wall of the straight shaft at equal intervals. The end of the arc-shaped plate away from the straight shaft is fixedly connected with the tapered block. The end of the arc-shaped plate away from the straight shaft and the top of the tapered block are provided with an arc-shaped groove. The arc-shaped plate and the tapered block are provided with a slot at the top of the arc-shaped groove. The arc-shaped cover plate is inserted into the slot at the top of the arc-shaped plate. The end of the cover plate away from the straight axis is fixedly connected with an inclined cover plate, the front and rear sides of the bottom of the arc-shaped cover plate are fixedly connected with an L-shaped hanging rod, and the arc-shaped plate is provided with an L-shaped slide groove used in conjunction with the L-shaped hanging rod at the top of the slot, and the lateral part of the L-shaped hanging rod is plugged into the lateral part of the L-shaped slide groove, and the side wall of the L-shaped hanging rod close to the lateral part of the L-shaped slide groove is in contact with the side wall of the vertical part of the L-shaped slide groove close to the straight axis. The inclined cover plate and the conical block are combined into a hollow conical head, and the L-shaped slide groove is set in a direction away from the sampling.

[0021] Furthermore, the quick-connect drill rod includes a plug-in support assembly and a locking assembly. The controller assembly and the drill rod are both connected to the plug-in support assembly. The bottom of the drill rod and the driving end of the external drive device are both connected to the locking assembly. The locking assembly is plugged into the plug-in support assembly.

[0022] Furthermore, the plug-in support component includes a transverse groove, a chamfer, a straight groove, a circular groove, a polygonal socket and a connecting column. The controller component and the drill rod are both connected to the connecting column. A circular groove is opened on the top of the connecting column, and a polygonal socket is opened at the bottom of the circular groove. The connecting column has a straight groove on the side wall of the circular groove, a chamfer is opened on the top of the straight groove, and a transverse groove is opened on the side wall of the straight groove, and the transverse groove is arranged outward, and the transverse groove, the circular groove and the polygonal socket are plugged into the locking component.

[0023] Furthermore, the locking assembly includes a spring, a polygonal plug-in rod, a plug-in cylinder, a groove and a slider. The plug-in cylinder is fixedly installed at the bottom of the drill pipe and the driving end of the external driving device respectively. The plug-in cylinder is plugged into the circular groove. The bottom of the plug-in cylinder is fixedly connected with a polygonal plug-in rod, and the polygonal plug-in rod is plugged into the polygonal socket. A groove is opened on the side wall of the plug-in cylinder. A spring is fixedly connected to the inner end of the groove. A slider is fixedly connected to the outer end of the spring. The slider is plugged into the transverse groove, and the inner end of the slider is always located in the groove.

[0024] In order to better achieve the purpose of the present invention, the present invention also provides a sampling method of a soil sampling device for environmental monitoring, comprising the following steps:

[0025] Step 1: The first motor of the sealing component drives the gear ring to rotate, the gear ring drives the arc-shaped rack to rotate, the arc-shaped rack drives the straight plate to rotate, the straight plate drives the arc-shaped baffle to rotate, the arc-shaped baffle rotates until the first arc-shaped groove and the second arc-shaped groove are staggered, the first arc-shaped groove and the second arc-shaped groove are connected and opened, and multiple groups of sampling ports are opened at the same time, the second motor of the driving component of the layered material taking component drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the straight shaft to rotate, the straight shaft drives the circular arc plate of the detachable sampling component to rotate along the straight shaft, the circular arc plate drives the conical block to rotate, the circular arc plate drives the circular arc cover plate to rotate through the L-shaped hanging rod and the L-shaped slide groove, the circular arc cover plate drives the conical block to rotate, the conical block and the inclined cover plate are combined into a hollow conical head through the first arc groove and the second arc The sampling port formed by the L-shaped slot is inserted into the L-shaped slot, and the arc-shaped cover plate is slid. The horizontal part of the L-shaped hanging rod is plugged into the horizontal part of the L-shaped slot, and the side wall of the L-shaped hanging rod close to the horizontal part of the L-shaped slot is in contact with the side wall of the vertical part of the L-shaped slot close to the straight axis, and the inclined cover plate and the conical block are combined into a hollow conical head. The second motor of the driving assembly of the layered material taking assembly drives the worm to rotate, the worm drives the worm gear to rotate, the worm gear drives the straight axis to rotate, the straight axis drives the arc-shaped plate of the detachable sampling assembly to rotate along the straight axis, the arc-shaped plate drives the conical block to rotate, the arc-shaped plate drives the arc-shaped cover plate to rotate through the L-shaped hanging rod and the L-shaped slot, the arc-shaped cover plate drives the conical block to rotate, and the conical block and the inclined cover plate are combined into a hollow conical head and move into the hollow rod;

[0026] Step 2: The first motor of the sealing assembly drives the gear ring to rotate, the gear ring drives the arc-shaped rack to rotate, the arc-shaped rack drives the straight plate to rotate, the straight plate drives the arc-shaped baffle to rotate, and when the arc-shaped baffle rotates to the inside of the first arc-shaped groove and the outside of the second arc-shaped groove, the arc-shaped baffle combines the first arc-shaped groove and the second arc-shaped groove into a sampling port to block the multiple sampling ports at the same time;

[0027] Step 3: Align the slider of the locking assembly of the quick-connect drill rod with the straight groove of the plug-in support assembly and move it downward. The plug-in cylinder is in the circular groove, the chamfer is guided into the straight groove and the spring is in a compressed state. At this time, the polygonal plug rod and the polygonal socket are set according to the plug-in orientation, and the plug-in cylinder continues to move downward. The plug-in cylinder drives the polygonal plug rod to be inserted into the polygonal socket. At the same time, the slider moves to the transverse groove and the spring restoring force pushes the slider to be inserted into the transverse groove. The polygonal socket and the polygonal plug rod cooperate to perform rotation transmission, and the slider and the transverse groove cooperate to perform vertical limiting. The drill rod and the controller assembly are connected through the quick-connect drill rod, and then the adjacent drill rods are connected through the quick-connect drill rod. The external driving structure drives the drill rod to rotate, and the drill rod drives the hollow rod to rotate through the quick-connect drill rod. The hollow rod drives the conical head and the spiral protrusion to rotate, and drives the hollow rod to rotate and move to the set position;

[0028] Step 4: The first motor of the sealing component drives the gear ring to rotate, the gear ring drives the arc-shaped rack to rotate, the arc-shaped rack drives the straight plate to rotate, the straight plate drives the arc-shaped baffle to rotate, the arc-shaped baffle rotates until the first arc-shaped groove and the second arc-shaped groove are staggered, the first arc-shaped groove and the second arc-shaped groove are connected and opened, and multiple groups of sampling ports are opened at the same time, and then, the second motor of the driving component of the layered material taking component drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the straight shaft to rotate, the straight shaft drives the circular arc plate of the detachable sampling component to rotate along the straight shaft, the circular arc plate drives the conical block to rotate, the circular arc plate drives the circular arc cover plate to rotate through the L-shaped hanging rod and the L-shaped slide groove, the circular arc cover plate drives the conical block to rotate, the conical block and the inclined cover plate are combined into a hollow conical head, which rotates into the soil through the sampling port composed of the first arc groove and the second arc groove for sampling. , the sampled soil is in a hollow conical head composed of an arc-shaped cover plate, a conical block and an inclined cover plate, the second motor drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the straight shaft to rotate, the straight shaft drives the arc-shaped plate of the detachable sampling assembly to rotate along the straight shaft, the arc-shaped plate drives the conical block to rotate, the arc-shaped plate drives the arc-shaped cover plate to rotate through the L-shaped hanging rod and the L-shaped sliding groove, the arc-shaped cover plate drives the conical block to rotate, the conical head composed of the conical block and the inclined cover plate is recovered into the hollow rod, the first motor of the sealing assembly drives the gear ring to rotate, the gear ring drives the arc-shaped rack to rotate, the arc-shaped rack drives the straight plate to rotate, the straight plate drives the arc-shaped baffle to rotate, when the arc-shaped baffle rotates to the inside of the first arc groove and the outside of the second arc groove, the arc-shaped baffle combines the first arc groove and the second arc groove into a sampling port to block, and multiple groups of sampling ports are closed at the same time;

[0029] Step 5: The external drive assembly drives the hollow rod to be recovered to the ground, the first motor of the sealing assembly drives the gear ring to rotate, the gear ring drives the arc rack to rotate, the arc rack drives the straight plate to rotate, the straight plate drives the arc baffle to rotate, the arc baffle rotates to the first arc groove and the second arc groove are staggered, the first arc groove and the second arc groove are connected and opened, and multiple groups of sampling ports are opened at the same time, the second motor of the driving assembly of the layered material taking assembly drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the straight shaft to rotate, the straight shaft drives the circular plate of the detachable sampling assembly to rotate along the straight shaft, the circular plate drives the conical block to rotate to the outside of the hollow rod, and then pushes the circular cover plate to slide in the direction away from the straight shaft, the circular cover plate drives the L-shaped hanging rod to move to the upright part of the L-shaped slide groove, and then pulls the circular cover plate upward, the circular cover plate and the conical block are separated from the circular plate, and the soil in the circular groove of the detachable sampling assembly is taken out.

[0030] The present invention has the following technical effects: the sealing assembly of the present invention closes multiple groups of sampling ports at the same time, connects the drill rod and the controller assembly through a quick-connect drill rod, and then connects adjacent drill rods through the quick-connect drill rod, and the external drive assembly is connected to the uppermost quick-connect drill rod, so as to realize rapid assembly of the controller assembly and the drill rod and rapid assembly between the drill rods, the external drive assembly drives the drill rod to rotate, the drill rod drives the controller assembly to rotate, the controller assembly drives the hollow rod to rotate, the hollow rod drives the spiral protrusion and the conical head to rotate, and under the action of the conical head and the spiral protrusion, the hollow rod is drilled to a set position, the sealing assembly opens multiple groups of sampling ports at the same time, the drive assembly of the layered material collection assembly drives the detachable sampling assembly to rotate, and the outer end of the detachable sampling assembly rotates to the soil through the sampling port. Sampling is performed inside, the driving component drives the detachable sampling component to be recovered into the hollow rod, and then the sealing component closes multiple groups of sampling ports at the same time, the external driving component drives the hollow rod to be recovered to the ground, and the sealing component opens multiple groups of sampling ports at the same time, the driving component of the layered material taking component drives the detachable sampling component to rotate, and the outer end of the detachable sampling component is rotated to the outside of the hollow rod through the sampling port, and then the detachable sampling component is disassembled and opened, and the soil in the detachable sampling component is taken out, so as to realize multi-layer layered sampling and avoid mutual interference. The operation is simple, and there is no need to repeatedly take soil and put it down. At the same time, it is convenient to take out the sampled soil. In addition, the controller component and the drill rod are quickly assembled, and the drill rods are quickly assembled. They can be assembled arbitrarily according to the sampling depth, which is beneficial to practical use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 A soil sampling device for environmental monitoring according to the present invention is provided. Figure 1 ;

[0033] Figure 2 It is a front view of a soil sampling device for environmental monitoring of the present invention;

[0034] Figure 3 It is a left view of a soil sampling device for environmental monitoring of the present invention;

[0035] Figure 4 A soil sampling device for environmental monitoring according to the present invention is provided. Figure 2 ;

[0036] Figure 5 A soil sampling device for environmental monitoring according to the present invention is provided. Figure 3 ;

[0037] Figure 6 For along Figure 2 AA direction cross-sectional view;

[0038] Figure 7 For along Figure 2 BB direction cross-sectional view;

[0039] Figure 8 For along Figure 3 CC direction cross-sectional view;

[0040] Fig. 9 For along Figure 3 DD direction cross-sectional view;

[0041] Fig.10 for Figure 8 A magnified view of the structure at D;

[0042] Fig.11 for Fig. 9 A magnified view of the structure at E;

[0043] Fig.12 for Fig. 9 Enlarged view of the structure at F.

[0044] The numbers in the figure represent:

[0045] 1. Hollow rod 2. Conical head 3. Spiral protrusion 4. Controller assembly 41. Mounting cylinder 42. Wireless transceiver 43. Battery 44. Controller 5. Quick-connect drill rod 51. Spring 52. Horizontal groove 53. Chamfer 54. Straight groove 55. Circular groove 56. Polygonal jack 57. Polygonal plug rod 58. Insert cylinder 59. Groove 510. Slider 511. Connecting column 6. Sealing assembly 61. First arc groove 62. Arc baffle 63. First motor 64. Inner cylinder 65. Straight plate 66. Second arc groove 67. Gear ring 68. Arc rack 7. Layered material taking assembly 71. L-shaped hanging rod 72. Worm gear 73. Straight shaft 74. Worm 75. Second motor 76. Circular arc cover plate 77. Circular arc plate 78. Circular arc groove 79. L-shaped slide 710. Oblique cover plate 711. Conical block 712. Slot 8. Drill rod. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0047] The present invention will be further described below in conjunction with the embodiments.

[0048] Example 1: Please refer to Figure 1-Figure 12 , a soil sampling device for environmental monitoring, comprising a hollow rod 1 and a drill rod 8:

[0049] The bottom of the hollow rod 1 is connected with a conical head 2;

[0050] The outer wall of the hollow rod 1 is spirally connected with a spiral protrusion 3;

[0051] A controller assembly 4 for controlling the soil sampling equipment is connected to the top of the hollow rod 1;

[0052] The controller assembly 4 is provided with a layered material taking assembly 7 for layered sampling and a sealing assembly 6 for simultaneously opening or closing multiple groups of sampling ports. The sealing assembly 6 is connected to the hollow rod 1.

[0053] The layered material taking component 7 includes a driving component and a detachable sampling component. The driving component is connected to the controller component 4. The driving component is connected to the detachable sampling components at equal intervals. The rotation center axis of the detachable sampling component is misaligned with the center axis of the hollow rod 1. The detachable sampling component is arranged at the driving component setting position in a one-to-one correspondence with the sampling port set by the sealing component 6. The driving component and the sealing component 6 are both electrically connected to the controller component 4.

[0054] A quick-connect drill rod 5 is connected between the controller assembly 4 and the drill rod 8 and between adjacent drill rods 8 for quick connection;

[0055] The sealing component 6 closes the multiple groups of sampling ports at the same time, connects the drill rod 8 and the controller component 4 through the quick-connect drill rod 5, and then connects the adjacent drill rods 8 through the quick-connect drill rod 5, and the external drive component is connected to the uppermost quick-connect drill rod 5 to realize the rapid assembly of the controller component 4 and the drill rod 8 and the rapid assembly between the drill rods 8, the external drive component drives the drill rod 8 to rotate, the drill rod 8 drives the controller component 4 to rotate, the controller component 4 drives the hollow rod 1 to rotate, the hollow rod 1 drives the spiral protrusion 3 and the conical head 2 to rotate, and under the action of the conical head 2 and the spiral protrusion 3, the hollow rod 1 is drilled to the set position, the sealing component 6 opens the multiple groups of sampling ports at the same time, the drive component of the layered material collection component 7 drives the detachable sampling component to rotate, and the outer end of the detachable sampling component rotates to the soil through the sampling port. Sampling is performed inside, the driving component drives the detachable sampling component to be recovered into the hollow rod 1, and then the sealing component 6 closes the multiple sampling ports at the same time, the external driving component drives the hollow rod 1 to be recovered to the ground, and the sealing component 6 opens the multiple sampling ports at the same time, and the driving component of the layered material taking component 7 drives the detachable sampling component to rotate, and the outer end of the detachable sampling component is rotated to the outside of the hollow rod 1 through the sampling port, and then the detachable sampling component is disassembled and opened, and the soil in the detachable sampling component is taken out, so as to realize multi-layer layered sampling and avoid mutual interference. The operation is simple, and there is no need to repeatedly take soil and put it down. At the same time, it is convenient to take out the sampled soil. In addition, the controller component 4 and the drill rod 8 are quickly assembled, and the drill rods 8 are quickly assembled. They can be assembled arbitrarily according to the sampling depth, which is beneficial to practical use.

[0056] See also Figure 1-Figure 3 , Figure 8 The controller assembly 4 includes a mounting tube 41, a wireless transceiver 42, a battery 43 and a controller 44. The mounting tube 41 is fixedly mounted on the top of the hollow rod 1. The wireless transceiver 42, the battery 43 and the controller 44 are all fixedly mounted on the top inside the mounting tube 41. The controller 44 is electrically connected to the wireless transceiver 42 and the battery 43. The controller 44 is connected to an external control terminal through the wireless transceiver 42.

[0057] See also Figure 1-Figure 3 , Figure 5-Figure 9 , Fig.11The sealing assembly 6 includes a first arc groove 61, an arc baffle 62, a first motor 63, an inner cylinder 64, a straight plate 65, a second arc groove 66, a gear ring 67 and an arc rack 68. The inner cylinder 64 is fixedly installed at the bottom of the hollow rod 1. The top of the inner cylinder 64 is fixedly connected to the bottom of the mounting cylinder 41. The side wall of the inner cylinder 64 is provided with second arc grooves 66 at equal intervals. The outer wall of the hollow rod 1 is provided with first arc grooves 61 corresponding to the second arc grooves 66 at equal intervals. The first arc groove 61 and the second arc groove 66 are combined to form a sampling The first arc groove 61 and the second arc groove 66 are of the same size. The outer wall of the inner cylinder 64 and the inner wall of the hollow rod 1 are respectively slidably connected with the inner wall and outer wall of the arc baffle 62. The side wall of the arc baffle 62 is fixedly connected with a straight plate 65. The top of the straight plate 65 is fixedly connected with an arc rack 68. The arc rack 68 is meshed with the gear ring 67. The first motor 63 is fixedly installed at the bottom of the installation cylinder 41. The driving end of the first motor 63 is fixedly connected with the gear ring 67. The first arc groove 61 is arranged one by one with the detachable sampling assembly.

[0058] The size of the arc-shaped baffle 62 is 1.2 times the size of the first arc-shaped groove 61 .

[0059] The first motor 63 of the sealing assembly 6 drives the ring gear 67 to rotate, the ring gear 67 drives the arc rack 68 to rotate, the arc rack 68 drives the straight plate 65 to rotate, the straight plate 65 drives the arc baffle 62 to rotate, and when the arc baffle 62 rotates to the inside of the first arc groove 61 and the outside of the second arc groove 66, the arc baffle 62 combines the first arc groove 61 and the second arc groove 66 into a sampling port to block it, and multiple groups of sampling ports are closed at the same time.

[0060] The first motor 63 of the sealing assembly 6 drives the ring gear 67 to rotate, the ring gear 67 drives the arc rack 68 to rotate, the arc rack 68 drives the straight plate 65 to rotate, the straight plate 65 drives the arc baffle 62 to rotate, the arc baffle 62 rotates until the first arc groove 61 and the second arc groove 66 are staggered, the first arc groove 61 and the second arc groove 66 are connected and opened, and multiple groups of sampling ports are opened at the same time.

[0061] It is convenient to adjust multiple groups of sampling ports to be opened or closed at the same time.

[0062] See also Figure 1-Figure 3 , Figure 5-Figure 9 , Figure 11-Figure 12 The driving assembly includes a worm gear 72, a straight shaft 73, a worm 74 and a second motor 75. The second motor 75 is fixedly installed on the top of the mounting tube 41. The worm 74 is fixedly installed on the output end of the second motor 75. The worm gear 72 is meshed with the worm 74. The straight shaft 73 is fixedly installed in the mounting hole of the worm gear 72. The bottom of the mounting tube 41 is rotatably connected with the straight shaft 73 through a bearing. The detachable sampling assembly is equidistantly installed on the position of the straight shaft 73 located on the hollow rod 1.

[0063] The central axis of the straight shaft 73 and the central axis of the hollow rod 1 are arranged in a staggered manner.

[0064] The detachable sampling assembly includes an L-shaped hanging rod 71, an arc-shaped cover plate 76, an arc-shaped plate 77, an arc-shaped groove 78, an L-shaped slide groove 79, an inclined cover plate 710 and a conical block 711. The arc-shaped plate 77 is fixedly installed on the outer wall of the straight shaft 73 at equal intervals. The end of the arc-shaped plate 77 away from the straight shaft 73 is fixedly connected with the conical block 711. The end of the arc-shaped plate 77 away from the straight shaft 73 and the top of the conical block 711 are provided with an arc-shaped groove 78. The arc-shaped plate 77 and the conical block 711 are provided with a slot 712 at the top of the arc-shaped groove 78. The arc-shaped cover plate 76 is inserted into the slot 712 at the top of the arc-shaped plate 77. The end of the arc-shaped cover plate 76 away from the straight shaft 73 is fixedly connected with an inclined cover plate 710, and the front and rear sides of the bottom of the arc-shaped cover plate 76 are fixedly connected with an L-shaped hanging rod 71. The arc-shaped plate 77 is provided with an L-shaped slide groove 79 used in conjunction with the L-shaped hanging rod 71 at the top of the slot 712. When the lateral part of the L-shaped hanging rod 71 is plugged into the lateral part of the L-shaped slide groove 79, and the side wall of the L-shaped hanging rod 71 close to the lateral part of the L-shaped slide groove 79 is in contact with the side wall of the vertical part of the L-shaped slide groove 79 close to the straight shaft 73, the inclined cover plate 710 and the conical block 711 are combined into a hollow conical head, and the L-shaped slide groove 79 is set in the direction away from the sampling.

[0065] The width of the upright portion of the L-shaped slide groove 79 is the same as the width of the lateral portion of the L-shaped hanging rod 71 , and the width of the lateral portion of the L-shaped hanging rod 71 is greater than the width of the vertical portion of the L-shaped hanging rod 71 .

[0066] The controller 44 is electrically connected to the second motor 75 and the battery 43 .

[0067] After the multiple groups of sampling ports are opened at the same time, the second motor 75 of the driving assembly of the layered material taking assembly 7 drives the worm 74 to rotate, the worm 74 drives the worm wheel 72 to rotate, the worm wheel 72 drives the straight shaft 73 to rotate, the straight shaft 73 drives the arc plate 77 of the detachable sampling assembly to rotate along the straight shaft 73, the arc plate 77 drives the conical block 711 to rotate, the arc plate 77 drives the arc cover plate 76 to rotate through the L-shaped hanging rod 71 and the L-shaped slide groove 79, the arc cover plate 76 drives the conical block 711 to rotate, the conical block 711 and the inclined cover plate 710 are combined into a hollow conical head, which is rotated into the soil through the sampling port composed of the first arc groove 61 and the second arc groove 66 for sampling, and the sampled soil has the arc cover plate 76. The conical block 711 and the inclined cover plate 710 are combined into a hollow conical head, the second motor 75 drives the worm 74 to rotate, the worm 74 drives the worm wheel 72 to rotate, the worm wheel 72 drives the straight shaft 73 to rotate, the straight shaft 73 drives the arc plate 77 of the detachable sampling assembly to rotate along the straight shaft 73, the arc plate 77 drives the conical block 711 to rotate, the arc plate 77 drives the arc cover plate 76 to rotate through the L-shaped hanging rod 71 and the L-shaped slide groove 79, the arc cover plate 76 drives the conical block 711 to rotate, the conical block 711 and the inclined cover plate 710 are combined into a hollow conical head and recovered into the hollow rod 1, and then the sealing assembly 6 closes the multiple groups of sampling ports at the same time to realize multi-layer stratified sampling to avoid mutual interference.

[0068] The arcuate cover plate 76 is then pushed to slide in the direction away from the straight shaft 73, and the arcuate cover plate 76 drives the L-shaped hanging rod 71 to move into the upright part of the L-shaped slide groove 79, and then the arcuate cover plate 76 is pulled upward, and the arcuate cover plate 76 and the conical block 711 are separated from the arcuate plate 77, and the soil in the arcuate groove 78 of the detachable sampling assembly is taken out, which is convenient for taking out the sampled soil. Then, the L-shaped hanging rod 71 is inserted into the L-shaped slide groove 79, and the arcuate cover plate 76 is slid. When the lateral part of the L-shaped hanging rod 71 is plugged into the lateral part of the L-shaped slide groove 79, and the side wall of the L-shaped hanging rod 71 close to the lateral part of the L-shaped slide groove 79 is in contact with the side wall of the vertical part of the L-shaped slide groove 79 close to the straight shaft 73, the inclined cover plate 710 and the conical block 711 are combined into a hollow conical head, which is convenient for the disassembly and assembly of the detachable sampling assembly.

[0069] See also Figure 1-Figure 4 , Figure 8 , Fig.10 The quick-connect drill rod 5 includes a plug-in support component and a locking component. The controller component 4 and the drill rod 8 are both connected to the plug-in support component. The bottom of the drill rod 8 and the driving end of the external driving device are both connected to the locking component, and the locking component is plugged with the plug-in support component.

[0070] The plug-in support assembly includes a transverse groove 52, a chamfer 53, a straight groove 54, a circular groove 55, a polygonal plug hole 56 and a connecting column 511. The controller assembly 4 and the drill rod 8 are both connected with the connecting column 511. The connecting column 511 has a circular groove 55 on the top, and the connecting column 511 has a polygonal plug hole 56 at the bottom of the circular groove 55. The connecting column 511 has a straight groove 54 on the side wall of the circular groove 55, and the straight groove 54 has a chamfer 53 on the top, and the side wall of the straight groove 54 has a transverse groove 52, and the transverse groove 52 is arranged outward, and the transverse groove 52, the circular groove 55 and the polygonal plug hole 56 are plugged with the locking assembly;

[0071] The locking assembly includes a spring 51, a polygonal plug rod 57, a plug-in cylinder 58, a groove 59 and a slider 510. The plug-in cylinder 58 is fixedly installed at the bottom of the drill rod 8 and the driving end of the external driving device respectively. The plug-in cylinder 58 is plugged into the circular groove 55. The bottom of the plug-in cylinder 58 is fixedly connected with a polygonal plug rod 57, and the polygonal plug rod 57 is plugged into the polygonal plug hole 56. The side wall of the plug-in cylinder 58 is provided with a groove 59. The inner end of the groove 59 is fixedly connected with the spring 51. The outer end of the spring 51 is fixedly connected with the slider 510. The slider 510 is plugged into the transverse groove 52. The inner end of the slider 510 is always located in the groove 59.

[0072] The sealing assembly 6 closes the multiple sampling ports at the same time, aligns the slider 510 of the locking assembly of the quick-connect drill pipe 5 with the straight groove 54 of the plug-in support assembly and moves downward, the plug-in cylinder 58 is in the circular groove 55, the chamfer 53 is guided into the straight groove 54 and the spring 51 is in a compressed state, at this time, the polygonal plug rod 57 and the polygonal plug hole 56 are arranged according to the plug-in orientation, the plug-in cylinder 58 continues to move downward, and the plug-in cylinder 58 drives the polygonal plug rod 57 to be inserted into the polygonal plug hole 56, at the same time, the slider 510 moves to the transverse groove 52, and the restoring force of the spring 51 pushes the slider 510 to be inserted into the transverse groove 52, and the polygonal plug hole 56 and the multi The side plug rod 57 cooperates to perform rotation transmission, the slider 510 and the transverse groove 52 cooperate to perform vertical limiting, the drill rod 8 and the controller assembly 4 are connected through the quick-connect drill rod 5, and then the adjacent drill rods 8 are connected through the quick-connect drill rod 5, and the external drive assembly is connected to the uppermost quick-connect drill rod 5, so as to realize the rapid assembly of the controller assembly 4 and the drill rod 8 and the rapid assembly between the drill rods 8, so as to facilitate the use of a wider sampling depth, and the external drive structure drives the drill rod 8 to rotate, and the drill rod 8 drives the hollow rod 1 to rotate through the quick-connect drill rod 5, and the hollow rod 1 drives the conical head 2 and the spiral protrusion 3 to rotate, so as to drive the hollow rod 1 to rotate and move at the same time.

[0073] Push the slider 510 to move into the groove 59, pull the plug-in cylinder 58 upward, and the plug-in cylinder 58 drives the polygonal plug-in rod 57 to be taken out from the circular groove 55, so that the quick-connect drill rod 5 can be opened and used easily.

[0074] Example 2: Figure 1-12As shown, as a preferred embodiment of the present invention, to better achieve the purpose of the present invention, the present invention also provides a sampling method of a soil sampling device for environmental monitoring, comprising the following steps:

[0075] Step 1: The first motor 63 of the sealing assembly 6 drives the ring gear 67 to rotate, the ring gear 67 drives the arc rack 68 to rotate, the arc rack 68 drives the straight plate 65 to rotate, the straight plate 65 drives the arc baffle 62 to rotate, the arc baffle 62 rotates until the first arc groove 61 and the second arc groove 66 are staggered, the first arc groove 61 and the second arc groove 66 are connected and opened, and multiple groups of sampling ports are opened at the same time, and the second motor 75 of the driving assembly of the layered material taking assembly 7 drives the worm 74 to rotate, The worm 74 drives the worm wheel 72 to rotate, the worm wheel 72 drives the straight shaft 73 to rotate, the straight shaft 73 drives the arc plate 77 of the detachable sampling assembly to rotate along the straight shaft 73, the arc plate 77 drives the conical block 711 to rotate, the arc plate 77 drives the arc cover plate 76 to rotate through the L-shaped hanging rod 71 and the L-shaped sliding groove 79, the arc cover plate 76 drives the conical block 711 to rotate, the conical block 711 and the inclined cover plate 710 are combined into a hollow conical head through the first arc groove 61 and the second The sampling port formed by the arc groove 66 inserts the L-shaped hanging rod 71 into the L-shaped slide groove 79, slides the arc-shaped cover plate 76, and the lateral part of the L-shaped hanging rod 71 is plugged into the lateral part of the L-shaped slide groove 79, and the side wall of the L-shaped hanging rod 71 close to the lateral part of the L-shaped slide groove 79 is in contact with the side wall of the vertical part of the L-shaped slide groove 79 close to the straight shaft 73, and the inclined cover plate 710 and the conical block 711 are combined into a hollow conical head, and the second motor 75 of the driving assembly of the layered material taking assembly 7 drives the worm 74 The worm 74 drives the worm wheel 72 to rotate, the worm wheel 72 drives the straight shaft 73 to rotate, the straight shaft 73 drives the arc plate 77 of the detachable sampling assembly to rotate along the straight shaft 73, the arc plate 77 drives the conical block 711 to rotate, the arc plate 77 drives the arc cover plate 76 to rotate through the L-shaped hanging rod 71 and the L-shaped slide groove 79, the arc cover plate 76 drives the conical block 711 to rotate, and the conical block 711 and the inclined cover plate 710 are combined into a hollow conical head and move into the hollow rod 1;

[0076] Step 2: The first motor 63 of the sealing assembly 6 drives the gear ring 67 to rotate, the gear ring 67 drives the arc rack 68 to rotate, the arc rack 68 drives the straight plate 65 to rotate, the straight plate 65 drives the arc baffle 62 to rotate, and when the arc baffle 62 rotates to the inside of the first arc groove 61 and the outside of the second arc groove 66, the arc baffle 62 combines the first arc groove 61 and the second arc groove 66 into a sampling port to block the sampling ports, and multiple groups of sampling ports are closed at the same time;

[0077] Step 3: Align the slider 510 of the locking assembly of the quick-connect drill rod 5 with the straight groove 54 of the plug-in support assembly and move downward. The plug-in cylinder 58 is in the circular groove 55, and the chamfer 53 is guided into the straight groove 54 and the spring 51 is in a compressed state. At this time, the polygonal plug rod 57 and the polygonal plug hole 56 are arranged according to the plug-in orientation. The plug-in cylinder 58 continues to move downward, and the plug-in cylinder 58 drives the polygonal plug rod 57 to be inserted into the polygonal plug hole 56. At the same time, the slider 510 moves to the transverse groove 52, and the restoring force of the spring 51 pushes The slider 510 is inserted into the transverse groove 52, the polygonal plug hole 56 and the polygonal plug rod 57 cooperate to perform rotation transmission, the slider 510 and the transverse groove 52 cooperate to perform vertical limit, the drill rod 8 and the controller assembly 4 are connected through the quick-connect drill rod 5, and then the adjacent drill rods 8 are connected through the quick-connect drill rod 5, the external driving structure drives the drill rod 8 to rotate, the drill rod 8 drives the hollow rod 1 to rotate through the quick-connect drill rod 5, the hollow rod 1 drives the conical head 2 and the spiral protrusion 3 to rotate, and drives the hollow rod 1 to rotate and move the set position;

[0078] Step 4: The first motor 63 of the sealing assembly 6 drives the gear ring 67 to rotate, the gear ring 67 drives the arc rack 68 to rotate, the arc rack 68 drives the straight plate 65 to rotate, the straight plate 65 drives the arc baffle 62 to rotate, the arc baffle 62 rotates until the first arc groove 61 and the second arc groove 66 are staggered, the first arc groove 61 and the second arc groove 66 are connected and opened, and multiple groups of sampling ports are opened at the same time, then, the second motor 75 of the driving assembly of the layered material taking assembly 7 drives the worm 74 to rotate, and the worm 74 drives the worm wheel 72 to rotate. The worm gear 72 drives the straight shaft 73 to rotate, the straight shaft 73 drives the arc plate 77 of the detachable sampling assembly to rotate along the straight shaft 73, the arc plate 77 drives the conical block 711 to rotate, the arc plate 77 drives the arc cover plate 76 to rotate through the L-shaped hanging rod 71 and the L-shaped sliding groove 79, the arc cover plate 76 drives the conical block 711 to rotate, the conical block 711 and the inclined cover plate 710 are combined into a hollow conical head, which is rotated into the soil through the sampling port composed of the first arc groove 61 and the second arc groove 66 to sample, and the sampling The soil is present in the hollow conical head composed of the arc-shaped cover plate 76, the conical block 711 and the inclined cover plate 710. The second motor 75 drives the worm 74 to rotate, the worm 74 drives the worm wheel 72 to rotate, the worm wheel 72 drives the straight shaft 73 to rotate, the straight shaft 73 drives the arc-shaped plate 77 of the detachable sampling assembly to rotate along the straight shaft 73, the arc-shaped plate 77 drives the conical block 711 to rotate, the arc-shaped plate 77 drives the arc-shaped cover plate 76 to rotate through the L-shaped hanging rod 71 and the L-shaped slide groove 79, and the arc-shaped cover plate 76 drives the conical block 71 1 rotates, the conical block 711 and the inclined cover plate 710 are combined into a hollow conical head and recovered into the hollow rod 1, the first motor 63 of the sealing assembly 6 drives the gear ring 67 to rotate, the gear ring 67 drives the arc rack 68 to rotate, the arc rack 68 drives the straight plate 65 to rotate, the straight plate 65 drives the arc baffle 62 to rotate, and when the arc baffle 62 rotates to the inside of the first arc groove 61 and the outside of the second arc groove 66, the arc baffle 62 combines the first arc groove 61 and the second arc groove 66 into a sampling port to block, and multiple groups of sampling ports are closed at the same time;

[0079] Step 5: The external drive assembly drives the hollow rod 1 to be recovered to the ground, the first motor 63 of the sealing assembly 6 drives the ring gear 67 to rotate, the ring gear 67 drives the arc rack 68 to rotate, the arc rack 68 drives the straight plate 65 to rotate, the straight plate 65 drives the arc baffle 62 to rotate, the arc baffle 62 rotates until the first arc groove 61 and the second arc groove 66 are staggered, the first arc groove 61 and the second arc groove 66 are connected and opened, and multiple groups of sampling ports are opened at the same time, the second motor 75 of the driving assembly of the layered material taking assembly 7 drives the worm 74 to rotate, and the worm 74 drives the worm The wheel 72 rotates, the worm gear 72 drives the straight shaft 73 to rotate, the straight shaft 73 drives the arc plate 77 of the detachable sampling assembly to rotate along the straight shaft 73, the arc plate 77 drives the conical block 711 to rotate to the outside of the hollow rod 1, and then pushes the arc cover plate 76 to slide in the direction away from the straight shaft 73, the arc cover plate 76 drives the L-shaped hanging rod 71 to move to the upright part of the L-shaped slide groove 79, and then pulls the arc cover plate 76 upward, the arc cover plate 76 and the conical block 711 are separated from the arc plate 77, and the soil in the arc groove 78 of the detachable sampling assembly is taken out.

[0080] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A soil sampling device for environmental monitoring, comprising a hollow rod (1) and a drill rod (8), characterized in that: The bottom of the hollow rod (1) is connected to a conical head (2); The outer wall of the hollow rod (1) is spirally connected with a spiral protrusion (3); A controller assembly (4) for controlling the soil sampling device is connected to the top of the hollow rod (1); A layered material taking component (7) for layered sampling and a sealing component (6) for simultaneously opening or closing multiple groups of sampling ports are installed in the controller component (4), and the sealing component (6) is connected to the hollow rod (1); The layered material taking component (7) comprises a driving component and a detachable sampling component, the driving component is connected to the controller component (4), the driving component is connected to the detachable sampling components at equal intervals, the rotation center axis of the detachable sampling component is offset from the center axis of the hollow rod (1), the detachable sampling component is arranged at a position where the driving component is arranged so as to correspond one to one with the sampling port arranged by the sealing component (6), and the driving component and the sealing component (6) are both electrically connected to the controller component (4); A quick-connect drill rod (5) for quick connection is connected between the controller component (4) and the drill rod (8) as well as between adjacent drill rods (8).

2. The soil sampling device for environmental monitoring according to claim 1, characterized in that: The controller assembly (4) comprises a mounting tube (41), a wireless transceiver (42), a storage battery (43) and a controller (44); the mounting tube (41) is fixedly mounted on the top of the hollow rod (1); the wireless transceiver (42), the storage battery (43) and the controller (44) are all fixedly mounted on the top of the mounting tube (41); the controller (44) is electrically connected to the wireless transceiver (42) and the storage battery (43); and the controller (44) is connected to an external control terminal via the wireless transceiver (42).

3. The soil sampling device for environmental monitoring according to claim 2, characterized in that: The sealing assembly (6) comprises a first arc-shaped groove (61), an arc-shaped baffle (62), a first motor (63), an inner cylinder (64), a straight plate (65), a second arc-shaped groove (66), a gear ring (67) and an arc-shaped rack (68); the inner cylinder (64) is fixedly mounted on the inner bottom of the hollow rod (1); the top of the inner cylinder (64) is fixedly connected to the bottom of the mounting cylinder (41); the side wall of the inner cylinder (64) is provided with second arc-shaped grooves (66) at equal intervals; the outer wall of the hollow rod (1) is provided with first arc-shaped grooves (61) corresponding to the second arc-shaped grooves (66) at equal intervals; the first arc-shaped groove (61) and the second arc-shaped groove (66) are arranged in a group A synthetic sampling port, wherein the first arc groove (61) and the second arc groove (66) have the same size, the outer wall of the inner cylinder (64) and the inner wall of the hollow rod (1) are respectively fitted and slidably connected with the inner wall and the outer wall of the arc baffle (62), the side wall of the arc baffle (62) is fixedly connected with a straight plate (65), the top of the straight plate (65) is fixedly connected with an arc rack (68), the arc rack (68) is meshingly connected with a gear ring (67), the first motor (63) is fixedly installed on the bottom of the installation cylinder (41), the driving end of the first motor (63) is fixedly connected with the gear ring (67), and the first arc groove (61) and the detachable sampling assembly are arranged one by one; The size of the arc-shaped baffle (62) is 1.2 times the size of the first arc-shaped groove (61).

4. The soil sampling device for environmental monitoring according to claim 3, characterized in that: The driving assembly comprises a worm wheel (72), a straight shaft (73), a worm (74) and a second motor (75); the second motor (75) is fixedly mounted on the top of the mounting tube (41); the worm (74) is fixedly mounted on the output end of the second motor (75); the worm wheel (72) and the worm (74) are meshedly connected; the straight shaft (73) is fixedly mounted in the mounting hole of the worm wheel (72); the bottom of the mounting tube (41) is rotatably connected to the straight shaft (73) via a bearing; and the detachable sampling assembly is equidistantly mounted on the portion of the straight shaft (73) located on the hollow rod (1).

5. The soil sampling device for environmental monitoring according to claim 4, characterized in that: The central axis of the straight shaft (73) and the central axis of the hollow rod (1) are arranged in a staggered manner.

6. The soil sampling device for environmental monitoring according to claim 5, characterized in that: The detachable sampling assembly comprises an L-shaped hanging rod (71), an arc-shaped cover plate (76), an arc-shaped plate (77), an arc-shaped groove (78), an L-shaped slide groove (79), an inclined cover plate (710) and a conical block (711). The arc-shaped plate (77) is fixedly installed on the outer wall of the straight shaft (73) at equal intervals. The end of the arc-shaped plate (77) away from the straight shaft (73) is fixedly connected with the conical block (711). The end of the arc-shaped plate (77) away from the straight shaft (73) and the top of the conical block (711) are provided with an arc-shaped groove (78). The arc-shaped plate (77) and the conical block (711) are provided with a slot (712) at the top of the arc-shaped groove (78). The arc-shaped cover plate (77) is inserted into the slot (712) at the top of the arc-shaped plate (77). The arc-shaped cover plate (76) is fixedly connected with an inclined cover plate (710) at the end away from the straight axis (73), and the front and rear sides of the bottom of the arc-shaped cover plate (76) are fixedly connected with an L-shaped hanging rod (71). The arc-shaped plate (77) is provided with an L-shaped slide groove (79) used in conjunction with the L-shaped hanging rod (71) at the top of the slot (712). When the lateral part of the L-shaped hanging rod (71) is plugged into the lateral part of the L-shaped slide groove (79), and the side wall of the L-shaped hanging rod (71) close to the lateral part of the L-shaped slide groove (79) is in contact with the side wall of the vertical part of the L-shaped slide groove (79) close to the straight axis (73), the inclined cover plate (710) and the conical block (711) are combined into a hollow conical head, and the L-shaped slide groove (79) is arranged in a direction away from the sampling.

7. The soil sampling device for environmental monitoring according to claim 6, characterized in that: The quick-connect drill rod (5) comprises a plug-in support component and a locking component. The controller component (4) and the drill rod (8) are both connected to the plug-in support component. The bottom of the drill rod (8) and the driving end of the external driving device are both connected to the locking component. The locking component is plugged into the plug-in support component.

8. The soil sampling device for environmental monitoring according to claim 7, characterized in that: The plug-in support component comprises a transverse groove (52), a chamfer (53), a straight groove (54), a circular groove (55), a polygonal plug hole (56) and a connecting column (511). The controller component (4) and the drill rod (8) are both connected with the connecting column (511). The connecting column (511) is provided with a circular groove (55) at the top, and the connecting column (511) is provided with a polygonal plug hole (56) at the bottom of the circular groove (55). The connecting column (511) is provided with a straight groove (54) at the side wall of the circular groove (55). The straight groove (54) is provided with a chamfer (53) at the top, and a transverse groove (52) is provided on the side wall of the straight groove (54), and the transverse groove (52) is arranged outward. The transverse groove (52), the circular groove (55) and the polygonal plug hole (56) are plugged with the locking component.

9. The soil sampling device for environmental monitoring according to claim 8, characterized in that: The locking assembly comprises a spring (51), a polygonal plug rod (57), a plug-in cylinder (58), a groove (59) and a slider (510). The plug-in cylinder (58) is fixedly mounted on the bottom of the drill rod (8) and the driving end of the external driving device respectively. The plug-in cylinder (58) is plugged into the circular groove (55). The bottom of the plug-in cylinder (58) is fixedly connected with a polygonal plug rod (57), and the polygonal plug rod (57) is plugged into the polygonal plug hole (56). A groove (59) is provided on the side wall of the plug-in cylinder (58). The inner end of the groove (59) is fixedly connected with a spring (51). The outer end of the spring (51) is fixedly connected with a slider (510). The slider (510) is plugged into the transverse groove (52). The inner end of the slider (510) is always located in the groove (59).

10. A sampling method for soil sampling equipment for environmental monitoring according to claim 9, characterized in that: The following steps are involved: Step 1: The sealing component (6) opens the multiple sampling ports at the same time, the second motor (75) of the driving component of the layered material taking component (7) drives the worm (74) to rotate, the worm (74) drives the worm wheel (72) to rotate, the worm wheel (72) drives the straight shaft (73) to rotate, the straight shaft (73) drives the arc plate (77) of the detachable sampling component to rotate along the straight shaft (73), the arc plate (77) drives the conical block (711) to rotate, and the arc plate (77) passes through the L-shaped The hanging rod (71) and the L-shaped slide groove (79) drive the arc-shaped cover plate (76) to rotate, and the arc-shaped cover plate (76) drives the conical block (711) to rotate. The conical block (711) and the inclined cover plate (710) are combined into a hollow conical head. The L-shaped hanging rod (71) is inserted into the L-shaped slide groove (79) through a sampling port formed by a combination of a first arc-shaped groove (61) and a second arc-shaped groove (66). The arc-shaped cover plate (76) is slid, and the lateral part of the L-shaped hanging rod (71) is aligned with the L-shaped slide groove (79). 9) When the lateral part is plugged in, the side wall of the lateral part of the L-shaped hanging rod (71) close to the L-shaped chute (79) is in contact with the side wall of the vertical part of the L-shaped chute (79) close to the straight shaft (73), the inclined cover plate (710) and the conical block (711) are combined into a hollow conical head, the second motor (75) of the driving assembly of the layered material taking assembly (7) drives the worm (74) to rotate, the worm (74) drives the worm wheel (72) to rotate, and the worm wheel (72) drives the straight shaft (73) to rotate The straight shaft (73) drives the arc-shaped plate (77) of the detachable sampling assembly to rotate along the straight shaft (73), the arc-shaped plate (77) drives the conical block (711) to rotate, the arc-shaped plate (77) drives the arc-shaped cover plate (76) to rotate through the L-shaped hanging rod (71) and the L-shaped sliding groove (79), the arc-shaped cover plate (76) drives the conical block (711) to rotate, and the conical block (711) and the inclined cover plate (710) are combined into a hollow conical head and move into the hollow rod (1); Step 2: The sealing component (6) closes the multiple sampling ports simultaneously; Step 3: Align the slider (510) of the locking assembly of the quick-connect drill rod (5) with the straight groove (54) of the plug-in support assembly and move it downward. The plug-in cylinder (58) is in the circular groove (55). The chamfer (53) is guided into the straight groove (54) and the spring (51) is in a compressed state. At this time, the polygonal plug rod (57) and the polygonal plug hole (56) are arranged according to the plug-in orientation. The plug-in cylinder (58) continues to move downward. The plug-in cylinder (58) drives the polygonal plug rod (57) to be inserted into the polygonal plug hole (56). At the same time, the slider (510) moves to the transverse groove (52) and the restoring force of the spring (51) pushes the slider. (510) is inserted into the transverse groove (52), the polygonal plug hole (56) and the polygonal plug rod (57) cooperate to perform rotation transmission, the slider (510) and the transverse groove (52) cooperate to perform vertical limit, the drill rod (8) and the controller assembly (4) are connected through the quick-connect drill rod (5), and then the adjacent drill rods (8) are connected through the quick-connect drill rod (5), the external driving structure drives the drill rod (8) to rotate, the drill rod (8) drives the hollow rod (1) to rotate through the quick-connect drill rod (5), the hollow rod (1) drives the conical head (2) and the spiral protrusion (3) to rotate, and drives the hollow rod (1) to move the set position while rotating; Step 4: The sealing component (6) opens the multiple groups of sampling ports at the same time, and then the second motor (75) of the driving component of the layered material taking component (7) drives the worm (74) to rotate, the worm (74) drives the worm wheel (72) to rotate, the worm wheel (72) drives the straight shaft (73) to rotate, the straight shaft (73) drives the arc plate (77) of the detachable sampling component to rotate along the straight shaft (73), the arc plate (77) drives the conical block (711) to rotate, the arc plate (77) drives the arc cover plate (76) to rotate through the L-shaped hanging rod (71) and the L-shaped sliding groove (79), the arc cover plate (76) drives the conical block (711) to rotate, the conical block (711) and the inclined cover plate (710) are combined into a hollow conical head, and the conical head is rotated into the soil through the sampling port formed by the first arc groove (61) and the second arc groove (66) to perform sampling. Sampling, the sampled soil is stored in a hollow conical head composed of an arc-shaped cover plate (76), a conical block (711) and an inclined cover plate (710), the second motor (75) drives the worm (74) to rotate, the worm (74) drives the worm wheel (72) to rotate, the worm wheel (72) drives the straight shaft (73) to rotate, the straight shaft (73) drives the arc-shaped plate (77) of the detachable sampling assembly to rotate along the straight shaft (73), and the arc The arc-shaped plate (77) drives the conical block (711) to rotate, the arc-shaped plate (77) drives the arc-shaped cover plate (76) to rotate through the L-shaped hanging rod (71) and the L-shaped sliding groove (79), the arc-shaped cover plate (76) drives the conical block (711) to rotate, the conical block (711) and the inclined cover plate (710) are combined into a hollow conical head and recovered into the hollow rod (1), and the sealing component (6) closes the multiple groups of sampling ports at the same time; Step 5: The external drive assembly drives the hollow rod (1) to be recovered to the ground, the first motor (63) of the sealing assembly (6) drives the ring gear (67) to rotate, the ring gear (67) drives the arc rack (68) to rotate, the arc rack (68) drives the straight plate (65) to rotate, the straight plate (65) drives the arc baffle (62) to rotate, the arc baffle (62) rotates until the first arc groove (61) and the second arc groove (66) are staggered, the first arc groove (61) and the second arc groove (66) are connected and opened, and the multiple groups of sampling ports are opened at the same time, the second motor (75) of the driving assembly of the layered material taking assembly (7) drives the worm (74) to rotate, and the worm (74) drives the worm The wheel (72) rotates, the worm gear (72) drives the straight shaft (73) to rotate, the straight shaft (73) drives the arc plate (77) of the detachable sampling assembly to rotate along the straight shaft (73), the arc plate (77) drives the conical block (711) to rotate to the outside of the hollow rod (1), and then pushes the arc cover plate (76) to slide in a direction away from the straight shaft (73), the arc cover plate (76) drives the L-shaped hanging rod (71) to move to the upright position of the L-shaped sliding groove (79), and then pulls the arc cover plate (76) upward, the arc cover plate (76) and the conical block (711) are separated from the arc plate (77), and the soil in the arc groove (78) of the detachable sampling assembly is taken out.

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