Soil sampling device and sampling method for environmental monitoring

Abstract

The present invention discloses a soil sampling device and a sampling method for environmental monitoring, which belongs to the field of soil sampling technology. The device comprises a hollow rod, a conical head, a spiral protrusion, a controller assembly, a layered sampling assembly and a sealing assembly connected to the hollow rod, a layered sampling assembly including a drive assembly and a detachable sampling assembly, the drive assembly being connected to the controller assembly, the drive assembly including a detachable sampling assembly, and both the drive assembly and the sealing assembly being electrically connected to the controller assembly, and a quick-connect drill rod for quick connection being connected between the controller assembly and the drill rod, as well as between adjacent drill rods. The present invention has the following technical effects: the present invention realizes multi-layered sampling, avoids mutual interference, is simple to operate, and does not require repeated soil extraction and sub-soiling.

Description

Technical Field

[0001] The present 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 representative values of factors affecting soil environmental quality. Environmental monitoring uses soil sampling equipment to collect soil samples.

[0003] For example, Chinese patent CN117451408B discloses a sampling device for soil environmental 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, and the top of the mounting plate is fixed with horizontally distributed trusses, and the number of trusses is two. A storage box is fixed on the top of the mounting plate and located on one side of the trusses, and a top plate is fixed on the top of the two trusses. The lifting mechanism includes a hydraulic press installed on the upper surface of the top plate. This solution ultimately realizes the forward and reverse rotation of the outer cylinder and the inner cylinder. The outer cylinder with an annular serrated structure can ensure that the soil is quickly crushed, while 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. In combination with the rotary sampling, not only can the soil be easily crushed, but 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 deeper parts in the following way: first, take the soil and then go into the soil. It takes multiple cycles to take samples at deeper locations, 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, 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 equipment is connected to the top of the hollow rod;

[0012] The controller assembly is equipped with a layered material taking assembly for layered sampling and a sealing assembly for simultaneously opening or closing multiple groups of sampling ports. The sealing assembly is connected to the hollow rod.

[0013] The layered material taking assembly includes a drive assembly and a detachable sampling assembly. The drive assembly is connected to the controller assembly. The drive assembly is connected to the detachable sampling assemblies at equal intervals. The rotation center axis of the detachable sampling assembly is offset from the center axis of the hollow rod. The detachable sampling assembly is arranged in a one-to-one correspondence with the sampling port set by the sealing assembly at the position where the drive assembly is set. The drive assembly and the sealing assembly are both electrically connected to the controller assembly.

[0014] Quick-connect drill rods are 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 the 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 mounted on the bottom inner side 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 to form a sampling port, the first arcuate groove and the second arcuate groove are the same size, the outer wall of the inner cylinder and the inner wall of the hollow rod are respectively fitted and slidably connected to the inner wall and outer wall of the arcuate baffle, the side wall of the arcuate baffle is fixedly connected to the straight plate, the top of the straight plate is fixedly connected to the arcuate rack, the arcuate rack is meshed with the gear ring, the first motor is fixedly mounted on the bottom inner side 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 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 gear, a straight shaft, a worm and a second motor. The second motor is fixedly mounted on the top of the mounting tube, the worm is fixedly mounted on the output end of the second motor, the worm gear is meshed with the worm gear, the straight shaft is fixedly mounted in the mounting hole of the worm gear, and the bottom of the mounting tube is rotatably connected to the straight shaft through a bearing. 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 staggered.

[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 plates are 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 to 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 to an inclined cover plate, and the front and rear sides of the bottom of the arc-shaped cover plate are fixedly connected to an L-shaped hanging rod, and the arc-shaped plate is provided with an L-shaped slide groove at the top of the slot for use with the L-shaped hanging rod. When the horizontal part of the L-shaped hanging rod is plugged into the horizontal part of the L-shaped slide groove, and the side wall of the L-shaped hanging rod close to the horizontal 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 tapered block are combined into a hollow tapered head, and the L-shaped slide groove is set in the 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 assembly includes a transverse groove, a chamfer, a straight groove, a circular groove, a polygonal socket and a connecting column. The controller assembly and the drill rod are both connected to a connecting column. A circular groove is provided on the top of the connecting column, and a polygonal socket is provided 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 provided on the top of the straight groove, and a transverse groove is provided on the side wall of the straight groove, and the transverse groove is arranged outward. The transverse groove, circular groove and polygonal socket are plugged into the locking assembly.

[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 provided on the side wall of the plug-in cylinder. The inner end of the groove is fixedly connected with a spring. The outer end of the spring is fixedly connected with a slider. 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 assembly drives the ring gear to rotate, the ring gear 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 until the first arc groove and the second arc groove are staggered, the first arc groove and the second arc groove are connected and opened, 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 gear to rotate, the worm gear drives the straight shaft to rotate, the straight shaft drives the circular arc plate of the detachable sampling assembly 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 sliding 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 sliding slot, and the side wall of the L-shaped hanging rod close to the horizontal part of the L-shaped sliding slot is in contact with the side wall of the vertical part of the L-shaped sliding slot close to the straight axis. The oblique cover plate and the conical block are combined into a hollow conical head, and 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, and 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, and the arc-shaped plate drives the arc-shaped cover plate to rotate through the L-shaped hanging rod and the L-shaped sliding slot, and the arc-shaped cover plate drives the conical block to rotate, and the conical block and the oblique 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 ring gear to rotate, the ring gear drives the arc rack to rotate, the arc rack drives the straight plate to rotate, the straight plate drives the arc baffle to rotate, and when the arc baffle rotates to the inside of the first arc groove and the outside of the second arc groove, the arc baffle combines the first arc groove and the second arc 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 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, driving the hollow rod to move the set position while rotating;

[0028] Step 4: The first motor of the sealing assembly drives the ring gear to rotate, the ring gear 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 until 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. Then, 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 shaft to rotate, the straight shaft drives the circular arc plate of the detachable sampling assembly 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 oblique cover plate are combined into a hollow conical head, which is rotated into the soil through the sampling port composed of the first arc groove and the second arc groove for sampling. The sampled soil exists 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 gear to rotate, the worm gear drives the straight shaft to rotate, and 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, and the arc-shaped plate drives the arc-shaped cover plate to rotate through the L-shaped hanging rod and the L-shaped slide groove. 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 recovered into the hollow rod. 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, and the straight plate drives the arc baffle to rotate. When the arc baffle rotates to the inside of the first arc groove and the outside of the second arc groove, the arc baffle combines the first arc groove and the second arc groove into a sampling port to block the sampling port, 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 ring gear to rotate, the ring gear 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 staggered setting, 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 gear to rotate, the worm gear drives the straight shaft to rotate, the straight shaft drives the circular arc plate of the detachable sampling assembly to rotate along the straight shaft, the circular arc plate drives the conical block to rotate to the outside of the hollow rod, and then pushes the circular arc cover to slide away from the straight axis, the circular arc cover drives the L-shaped hanging rod to move to the upright part of the L-shaped slide groove, and then pulls the circular arc cover upward, the circular arc cover and the conical block are separated from the circular arc plate, and the soil in the circular arc 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 the 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 is rotated to the soil through the sampling port. Sampling is carried out 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 sampling 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, realizing multi-layer layered sampling and avoiding mutual interference. The operation is simple, and there is no need to repeatedly take soil and put it down in the soil. 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 actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0032] Figure 1 The present invention is a soil sampling device for environmental monitoring Figure 1 ;

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

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

[0035] Figure 4 The present invention is a soil sampling device for environmental monitoring Figure 2 ;

[0036] Figure 5 The present invention is a soil sampling device for environmental monitoring Figure 3 ;

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

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

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

[0040] Figure 9 For the Figure 3 DD direction cross-sectional view;

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

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

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

[0044] The numbers in the figure represent:

[0045] 1. Hollow rod 2. Conical head 3. Spiral bump 4. Controller assembly 41. Mounting tube 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 socket 57. Polygonal plug rod 58. Connecting cylinder 59. Groove 510. Slider 511. Connecting column 6. Sealing assembly 61. First arcuate groove 62. Arc baffle 63. First motor 64. Inner cylinder 65. Straight plate 66. Second arcuate groove 67. Ring gear 68. Arc-shaped rack 7. Layered material removal assembly 71. L-shaped hanging rod 72. Worm gear 73. Straight shaft 74. Worm 75. Second motor 76. Arc-shaped cover plate 77. Arc-shaped plate 78. Arc-shaped groove 79. L-shaped chute 710. Slanted cover plate 711. Conical block 712. Slot 8. Drill rod DETAILED DESCRIPTION

[0046] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0047] The present invention will be further described below with reference to the embodiments.

[0048] Example 1: Please refer to Figures 1-12 , 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 to 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 equipped with a layered sampling 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 drive component and a detachable sampling component. The drive component is connected to the controller component 4. The drive 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 in a one-to-one correspondence with the sampling port set by the sealing component 6 at the setting position of the drive component. The drive 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 as well as between adjacent drill rods 8.

[0055] The sealing assembly 6 closes multiple groups of sampling ports at the same time, connects the drill rod 8 and the controller assembly 4 through the quick-connect drill rod 5, and then connects the adjacent drill rods 8 through the quick-connect drill rod 5. The external drive assembly is connected to the uppermost quick-connect drill rod 5 to achieve rapid assembly of the controller assembly 4 and the drill rod 8 and rapid assembly between the drill rods 8. The external drive assembly drives the drill rod 8 to rotate, the drill rod 8 drives the controller assembly 4 to rotate, the controller assembly 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 assembly 6 opens multiple groups of sampling ports at the same time, the drive assembly of the layered material collection assembly 7 drives the detachable sampling assembly to rotate, and the outer end of the detachable sampling assembly is rotated to the soil through the sampling port. Sampling is carried out inside, the driving component drives the detachable sampling component to be recovered into the hollow rod 1, and then the sealing component 6 closes multiple groups of 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 multiple groups of sampling ports at the same time, and the driving component of the layered sampling 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, realizing multi-layer layered sampling, avoiding mutual interference, simple operation, no need to repeatedly take soil and put it down, and 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 actual 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 the external control terminal through the wireless transceiver 42.

[0057] See also Figure 1-Figure 3 、 Figure 5-Figure 9 、 Figure 11The sealing assembly 6 includes 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 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 evenly spaced with a second arc-shaped groove 66. The outer wall of the hollow rod 1 is evenly spaced with a first arc-shaped groove 61 corresponding to the second arc-shaped groove 66. The first arc-shaped groove 61 and the second arc-shaped 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 fitted and 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 mounting cylinder 41. The driving end of the first motor 63 is fixedly connected to the gear ring 67. The first arc groove 61 is arranged in a one-to-one correspondence 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, and the straight plate 65 drives the arc baffle 62 to rotate. 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 easy 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 11-12 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 mounted on the top of the mounting cylinder 41. The worm 74 is fixedly mounted 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 mounted in the mounting hole of the worm gear 72. The bottom of the mounting cylinder 41 is rotatably connected to the straight shaft 73 through a bearing. The detachable sampling assembly is equidistantly mounted 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 offset.

[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 79, an inclined cover plate 710 and a tapered 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 to the tapered block 711. The end of the arc-shaped plate 77 away from the straight shaft 73 and the top of the tapered block 711 are provided with an arc-shaped groove 78. The arc-shaped plate 77 and the tapered 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 to the inclined cover plate 710, and the front and rear sides of the bottom of the arc-shaped cover plate 76 are fixedly connected to the L-shaped hanging rod 71. The arc-shaped plate 77 is provided with an L-shaped slide 79 at the top of the slot 712 for use with the L-shaped hanging rod 71. When the horizontal part of the L-shaped hanging rod 71 is plugged into the horizontal part of the L-shaped slide 79 and the side wall of the L-shaped hanging rod 71 close to the horizontal part of the L-shaped slide 79 is in contact with the side wall of the vertical part of the L-shaped slide 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 79 is set in the direction away from the sampling.

[0065] The width of the upright portion of the L-shaped slide 79 is the same as the width of the horizontal portion of the L-shaped hanging rod 71 , and the width of the horizontal 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 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 gear 72 to rotate, the worm gear 72 drives the straight shaft 73 to rotate, and 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 76 to rotate through the L-shaped hanging rod 71 and the L-shaped slide 79, the arc cover 76 drives the conical block 711 to rotate, the conical block 711 and the inclined cover 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 take samples. 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 gear 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 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 multiple groups of sampling ports at the same time to achieve multi-layered sampling and avoid mutual interference.

[0068] When the locking cam 75 is unlocked, the locking cam 77 is unlocked and the locking cam 77 is unlocked, and the lock cam 77 is unlocked, and the lock cam 77 is unlocked, and the lock cam 77 is unlocked.

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

[0070] The plug-in support assembly includes a transverse groove 52, a chamfer 53, a straight groove 54, a circular groove 55, a polygonal socket 56 and a connecting column 511. The controller assembly 4 and the drill rod 8 are both connected to the connecting column 511. The connecting column 511 has a circular groove 55 on the top, and a polygonal socket 56 on 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, a chamfer 53 on the top of the straight groove 54, and a transverse groove 52 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 socket 56 are plugged into 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 pipe 8 and the driving end of the external drive 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 to the polygonal plug rod 57, and the polygonal plug rod 57 is plugged into the polygonal socket 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 to the spring 51. The outer end of the spring 51 is fixedly connected to 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 multiple groups of 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, 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 socket 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 socket 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. The polygonal socket 56 and the multi The angular plug rod 57 cooperates for rotation transmission, the slider 510 and the transverse groove 52 cooperate for vertical limitation, 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 deeper sampling depth. 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, driving the hollow rod 1 to rotate and move.

[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, making it convenient to open the quick-connect drill rod 5 for use.

[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 gear 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 76 to rotate through the L-shaped hanging rod 71 and the L-shaped sliding groove 79, the arc cover 76 drives the conical block 711 to rotate, the conical block 711 and the inclined cover 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 chute 79, slides the arc-shaped cover plate 76, and the horizontal part of the L-shaped hanging rod 71 is plugged into the horizontal part of the L-shaped chute 79. When the side wall of the L-shaped hanging rod 71 close to the horizontal part of 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 The worm 74 drives the worm gear 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 76 to rotate through the L-shaped hanging rod 71 and the L-shaped slide 79, the arc cover 76 drives the conical block 711 to rotate, and the conical block 711 and the inclined cover 710 are combined into a hollow conical head which moves into the hollow rod 1;

[0076] Step 2: 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 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 socket 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 socket 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, and the polygonal socket 56 and the polygonal insertion 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, driving the hollow rod 1 to move the set position while rotating;

[0078] Step 4: 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, 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, and 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 76 to rotate through the L-shaped hanging rod 71 and the L-shaped sliding groove 79. The arc cover 76 drives the conical block 711 to rotate. The conical head composed of the conical block 711 and the inclined cover 710 is rotated into the soil through the sampling port composed of the first arc groove 61 and the second arc groove 66 to take samples. 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 gear 72 to rotate, the worm gear 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 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 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;

[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 to 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 drive 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, and 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 to the outside of the hollow rod 1, and then pushes the arc-shaped cover plate 76 to slide away from the straight shaft 73. The arc-shaped 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-shaped cover plate 76 upward. The arc-shaped cover plate 76 and the conical block 711 are separated from the arc-shaped plate 77, and the soil in the arc-shaped 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 they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these 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 various 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 sealing assembly (6) includes a first arcuate groove (61), an arcuate baffle (62), a first motor (63), an inner cylinder (64), a gear ring (67) and an arcuate rack (68). The inner cylinder (64) is fixedly mounted on the inner bottom of the hollow rod (1). The side wall of the inner cylinder (64) is provided with second arcuate grooves (66) at equal intervals. The outer wall of the hollow rod (1) is provided with first arcuate grooves (61) corresponding to the second arcuate grooves (66) at equal intervals. 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 outer wall of the arcuate baffle (62). The side wall of the arcuate baffle (62) is fixedly connected with a straight plate (65). The top of the straight plate (65) is fixedly connected with an arcuate rack (68). The arcuate rack (68) is meshed and connected with the gear ring (67). The driving end of the first motor (63) is fixedly connected with the gear ring (67). 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 offset from the center axis of the hollow rod (1), the detachable sampling component is arranged in a one-to-one correspondence with the sampling port set by the sealing component (6) at the setting position of the driving component, and the driving component and the sealing component (6) are both electrically connected to the controller component (4); 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 chute (79), an inclined cover plate (710) and a tapered block (711), wherein the arc-shaped plate (77) is fixedly mounted on the outer wall of the straight shaft (73), and the end of the arc-shaped plate (77) away from the straight shaft (73) is fixedly connected to the tapered block (711), and the end of the arc-shaped plate (77) away from the straight shaft (73) and the top of the tapered block (711) are provided with an arc-shaped groove (78), and the arc-shaped plate (77) and the tapered block ( 711) is provided with a slot (712) at the top of the arc-shaped groove (78), a circular arc-shaped cover plate (76) is inserted into the slot (712) at the top of the arc-shaped plate (77), an end of the arc-shaped cover plate (76) away from the straight axis (73) is fixedly connected to an inclined cover plate (710), and the front and rear sides of the bottom of the arc-shaped cover plate (76) are fixedly connected to an L-shaped hanging rod (71), and the arc-shaped plate (77) is provided with an L-shaped chute (79) for use with the L-shaped hanging rod (71) at the top of the slot (712), and the L-shaped chute (79) is arranged in a direction away from the sampling; A quick-connect drill rod (5) for quick connection is connected between the controller assembly (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) 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 of 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 via the wireless transceiver (42).

3. The soil sampling device for environmental monitoring according to claim 2, characterized in that: The top of the inner cylinder (64) is fixedly connected to the bottom of the mounting cylinder (41), the first motor (63) is fixedly mounted on the inner bottom of the mounting cylinder (41), the first arcuate groove (61) and the second arcuate groove (66) are combined to form a sampling port, the first arcuate groove (61) and the second arcuate groove (66) have the same size, and the size of the arcuate baffle (62) is 1.2 times the size of the first arcuate groove (61); the first arcuate groove (61) and the detachable sampling assembly are arranged in a one-to-one correspondence.

4. The soil sampling device for environmental monitoring according to claim 3, characterized in that: The driving assembly includes a worm wheel (72), a straight shaft (73), a worm (74) and a second motor (75), wherein the second motor (75) is fixedly mounted on the top of the mounting cylinder (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 meshed and connected, the straight shaft (73) is fixedly mounted in the mounting hole of the worm wheel (72), the bottom of the mounting cylinder (41) is rotatably connected to the straight shaft (73) through 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: When the transverse portion of the L-shaped hanging rod (71) is plugged into the transverse portion of the L-shaped chute (79), and the side wall of the L-shaped hanging rod (71) close to the transverse portion of the L-shaped chute (79) is in contact with the side wall of the vertical portion of the L-shaped chute (79) close to the straight axis (73), the inclined cover plate (710) and the tapered block (711) are combined to form a hollow tapered head.

7. The soil sampling device for environmental monitoring according to claim 6, characterized in that: 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. 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 includes a transverse groove (52), a chamfer (53), a straight groove (54), a circular groove (55), a polygonal jack (56) and a connecting column (511). The controller component (4) and the drill rod (8) are both connected to the connecting column (511). The connecting column (511) has a circular groove (55) on the top, and the connecting column (511) has a polygonal jack (56) on 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). The straight groove (54) has a chamfer (53) on the top, and a transverse groove (52) is provided on the side wall of the straight groove (54). The transverse groove (52) is arranged outward. The transverse groove (52), the circular groove (55) and the polygonal jack (56) are plugged into the locking component.

9. The soil sampling device for environmental monitoring according to claim 8, characterized in that: 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 the polygonal plug rod (57), and the polygonal plug rod (57) is plugged into the polygonal socket (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 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).

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 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 chute (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 chute (79) through the sampling port formed by the first arc-shaped groove (61) and the second arc-shaped groove (66). The arc-shaped cover plate (76) is slid, and the horizontal part of the L-shaped hanging rod (71) is aligned with the L-shaped chute (79). 9) When the horizontal portion is plugged in and the side wall of the L-shaped hanging rod (71) near the horizontal portion of the L-shaped chute (79) is in contact with the side wall of the vertical portion of the L-shaped chute (79) near the straight shaft (73), 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) 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 slide 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 socket (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 socket (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 jack (56) and the polygonal plug rod (57) cooperate 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), 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 to the set position while rotating; Step 4: The sealing component (6) opens the multiple sampling ports at the same time, and then the second motor (75) of the driving component of the layered sampling 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 (76) to rotate through the L-shaped hanging rod (71) and the L-shaped sliding groove (79), the arc cover (76) drives the conical block (711) to rotate, the conical block (711) and the inclined cover (710) are combined into a hollow conical head, which 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 present 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 slide 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 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 multiple groups of sampling ports are opened at the same time, the second motor (75) of the drive 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 (76) to slide in the direction away from the straight shaft (73), the arc cover (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 (76) upward, the arc cover (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.

Images