Soil monitoring stratified sampling equipment

Abstract

The invention relates to the technical field of soil sampling, in particular to soil quality monitoring stratified sampling equipment which comprises a base, a lifting mechanism is arranged on the lower surface of the base, a plurality of connecting pipes evenly distributed up and down are arranged on the upper surface of the base, and reinforcing ribs are jointly and fixedly connected to the outer circumferential surfaces of the connecting pipes. The sampling equipment further comprises an adjusting mechanism used for adjusting the sampling position, the adjusting mechanism is arranged between the opposite faces of the upper connecting pipe and the lower connecting pipe, the sampling equipment further comprises a sampling mechanism used for sampling soil, and the sampling mechanism is arranged on the inner wall of the bottom end of the base. Through the arrangement of the adjusting mechanism, when the soil is sampled, the soil at the same layer can be circumferentially sampled at multiple positions, so that the comparison of detection results after multiple times of sampling is more representative, and the accuracy of the detection results is improved.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling, in particular to a soil quality monitoring layered sampling device. Background Art

[0002] Soil quality monitoring is a job that monitors and analyzes various properties of soil. Soil quality monitoring can focus on the porosity, water content, texture and other physical properties of the soil. At the same time, soil quality monitoring can focus on the soil's pH, nutrient content, heavy metal content and other chemical properties.

[0003] When soil quality monitoring is applied to the treatment of contaminated land, it is necessary to regularly sample the treated land in order to evaluate the treatment of the contaminated land. However, usually during the treatment of contaminated land, staff use sampling equipment to conduct on-site sampling of a sampling point each time for evaluation sampling. The sampling results obtained in this way are not fixed in each sampling position. After multiple samplings are performed during the entire treatment cycle, each soil layer will have a different position after multiple samplings. The results of the tests on each soil layer are not highly comparable and cannot well reflect the treatment effect of the current soil layer. When sampling, multiple sampling points need to be cleaned and prepared in advance each time they are sampled, resulting in low sampling efficiency. Summary of the invention

[0004] Therefore, the present invention provides a soil monitoring layered sampling device to solve the above technical problems.

[0005] The present invention provides a soil monitoring layered sampling device, comprising a base, a lifting mechanism is provided on the lower surface of the base, a plurality of connecting tubes evenly distributed up and down are provided on the upper surface of the base, and reinforcing ribs are fixedly connected to the outer circumferential surfaces of the plurality of connecting tubes. The sampling device also includes an adjusting mechanism for adjusting the sampling position, and the adjusting mechanism is arranged between the opposite surfaces of the upper and lower connecting tubes. The sampling device also includes a sampling mechanism for soil sampling, and the sampling mechanism is arranged on the inner wall of the bottom end of the base.

[0006] The sampling mechanism comprises a bottom plate rotatably connected to the inner wall of the bottom end of the base, a connecting rod is fixedly connected to the center position of the upper surface of the bottom plate, a sampling piece is arranged at the bottom end of the circumferential surface of the connecting rod, a first adjusting piece is arranged on the sampling piece and the bottom plate, a pulling piece is arranged on the sampling piece, and a second adjusting piece is arranged on the pulling piece and the connecting rod;

[0007] The sampling piece includes a mounting seat rotatably connected to the circumferential surface of the connecting rod, the interior of the mounting seat is slidably connected to a sliding block along its length direction, the interior of the sliding block is clamped with a sampling tube, and one side of the sliding block passes through the outside of the mounting seat and is fixedly connected to a rack.

[0008] According to an embodiment of the present invention, the lifting mechanism includes a connecting seat fixedly connected to the lower surface of the base, and two first articulated arms are hinged on the connecting seat and are symmetrically distributed with respect to the axis of the base, and a second articulated arm is hinged on the ends of the two first articulated arms that are away from each other, and a support plate is hinged on the ends of the two second articulated arms that are away from their corresponding first articulated arms, and an adjusting screw is rotatably connected on the two hinge point connecting shafts of the first articulated arm and the second articulated arm, and the adjusting screw is rotatably connected to one hinge point connecting shaft of the first articulated arm and the second articulated arm, and is threadedly connected to the other hinge point connecting shaft of the first articulated arm and the second articulated arm.

[0009] According to an embodiment of the present invention, the adjustment mechanism includes an adjustment tube that is rotatably connected on the relative surfaces of two adjacent upper and lower connecting tubes, a sliding seat is slidably connected to the inner circumferential surface of the adjustment tube, four corners of the sliding seat on a surface close to the center of the adjustment tube are fixedly connected to limiting rods, a connecting block is elastically slidably connected to the four limiting rods, a sealing block is fixedly connected to the surface of the connecting block away from the center of the adjustment tube, a through hole matching the sealing block is provided on the circumferential surface of the adjustment tube, and a connecting groove that passes through from top to bottom is provided on the upper surface of the connecting block.

[0010] According to an embodiment of the present invention, the first adjusting member includes a fixing seat fixedly connected to the mounting seat, the lower surface of the fixing seat is rotatably connected to an outer gear ring, the inner part of the outer gear ring is slidably connected to a spline shaft up and down, the upper surface of the spline shaft slides up and down and is penetrated by a lifting rod, the upper surface of the base plate is fixedly connected to an arc-shaped connecting plate at a position corresponding to the bottom end of the spline shaft, the arc-shaped connecting plate is slidably connected to a sliding sleeve, and both ends of the upper surface of the arc-shaped connecting plate are provided with clamping holes adapted to the lifting rod, and the outer gear ring is meshed with the rack.

[0011] According to an embodiment of the present invention, the pulling member includes a mounting shell fixedly connected to the mounting seat, a section of the mounting shell perpendicular to the mounting seat slides on a side away from the mounting seat and is penetrated by a connecting pin rod, a pull rope is fixedly connected to one end of the connecting pin rod located inside the mounting shell, a section of the mounting shell parallel to the mounting seat is rotatably connected to a winding roller, and an end of the pull rope away from the connecting pin rod is wound around the winding roller.

[0012] According to an embodiment of the present invention, an operating handle is provided at the top of the connecting rod, and the second adjusting member includes a mounting sleeve slidably connected to the operating handle of the connecting rod, a fixing rod is slidably connected to the inside of the mounting sleeve up and down, the upper surface of the fixing rod slides up and down and is penetrated by a rotating rod, a limit pin is elastically slidably connected to the circumferential surface of the mounting sleeve, and limit holes are provided at the positions of the circumferential surface of the fixing rod corresponding to the adjustment mechanism, the size of the limit pin is matched with the size of the limit hole, the bottom end of the fixing rod is fixedly connected to the upper surface of the mounting shell, and the bottom end of the rotating rod penetrates into the interior of the mounting shell and is fixedly connected to the upper surface of the winding roller.

[0013] According to an embodiment of the present invention, a connecting groove is provided on the top of the sampling tube, a push plate is slidably connected to the inside of the sampling tube along the axial direction, and a clamping plate is provided at one end of the sampling tube away from the sampling port, and the clamping plate is clamped with the sliding block.

[0014] According to an embodiment of the present invention, the spline shaft and the inner circumferential surface of the outer gear ring are spline-matched, and the upper surface of the sliding sleeve is rotatably connected to the bottom end of the spline shaft.

[0015] According to an embodiment of the present invention, a fixing sleeve matched with the rack is arranged on the mounting seat, and the rack is slidably connected to the fixing sleeve.

[0016] According to an embodiment of the present invention, a limiting sliding groove matched with the sliding seat is arranged on the adjusting tube.

[0017] The technical solution of the present invention is as follows: 1. By setting the adjustment mechanism, circumferential sampling can be performed at multiple positions on the soil of the same layer when sampling the soil, so that the comparison of the test results after multiple samplings is more representative, thereby improving the accuracy of the test results.

[0018] 2. By taking fixed samples at one sampling point and distributing them at multiple points with multiple sampling devices, the sampling efficiency can be improved each time. After the sampling equipment is placed, there is no need to carry out preparation work before each sampling. The sampling efficiency can be improved while ensuring the diversity of sampling results.

[0019] 3. By setting the lifting mechanism, when soil sampling is carried out, multiple adjustment mechanisms can be aligned with the soil layer to be sampled as needed, so that the soil layer to be sampled can be sampled accurately when soil sampling is carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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 description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 It is one of the three-dimensional structural schematic diagrams of the soil monitoring layered sampling equipment provided by the present invention.

[0022] Figure 2 This is the second schematic diagram of the three-dimensional structure of the soil monitoring layered sampling equipment provided by the present invention.

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the lifting mechanism provided by the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the sampling mechanism provided by the present invention.

[0025] Figure 5 It is one of the three-dimensional structural schematic diagrams of the adjustment mechanism provided by the present invention.

[0026] Figure 6 This is the second three-dimensional structural schematic diagram of the adjustment mechanism provided by the present invention.

[0027] Figure 7 It is one of the three-dimensional structural schematic diagrams of the first adjusting member, the pulling member, the second adjusting member and the sampling member provided by the present invention.

[0028] Figure 8 This is the second schematic diagram of the three-dimensional structure of the first adjusting member, the pulling member, the second adjusting member and the sampling member provided by the present invention.

[0029] Fig. 9 It is a top view and cross-section of the installation shell provided by the present invention.

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the sampling tube provided by the present invention.

[0031] Fig.11 It is a schematic diagram of the sampling operation state provided by the present invention.

[0032] Fig.12 It is a schematic diagram of the three-dimensional structure of the protection cover provided by the present invention.

[0033] Figure numerals: 1, lifting mechanism; 2, base; 3, connecting pipe; 4, reinforcing rib; 5, adjusting mechanism; 6, sampling mechanism; 11, supporting plate; 12, connecting seat; 13, first hinged arm; 14, adjusting screw rod; 15, second hinged arm; 51, adjusting pipe; 52, sliding seat; 53, limiting rod; 54, connecting block; 55, blocking block; 61, first adjusting member; 62, connecting rod; 63, pulling member; 64, bottom plate; 65, second adjusting member; 66, sampling member; 611 , lifting rod; 612, spline shaft; 613, fixed seat; 614, outer gear ring; 615, arc-shaped connecting plate; 616, sliding sleeve; 631, connecting pin rod; 632, mounting shell; 633, pull rope; 635, winding roller; 651, rotating rod; 652, fixing rod; 653, limit pin; 654, mounting sleeve; 655, limit clamping hole; 661, mounting seat; 662, sliding block; 663, rack; 100, connecting slide groove; 200, push plate; 300, clamping plate. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0035] like Figure 1 and Figure 2 As shown, a soil monitoring layered sampling device includes a base 2, a lifting mechanism 1 is provided on the lower surface of the base 2, a plurality of connecting tubes 3 evenly distributed up and down are provided on the upper surface of the base 2, and a reinforcing rib 4 is fixedly connected to the outer circumferential surfaces of the plurality of connecting tubes 3. The sampling device also includes an adjusting mechanism 5 for adjusting the sampling position, and the adjusting mechanism 5 is arranged between the opposite surfaces of the upper and lower connecting tubes 3. The sampling device also includes a sampling mechanism 6 for soil sampling, and the sampling mechanism 6 is arranged on the inner wall of the bottom end of the base 2.

[0036] like Figure 1 and Figure 3As shown, the lifting mechanism 1 includes a connecting seat 12 fixedly connected to the lower surface of the base 2, and two first articulated arms 13 are hinged on the connecting seat 12 and are symmetrically distributed with respect to the axis of the base 2. The two first articulated arms 13 are hinged on one end away from each other with a second articulated arm 15, and the two second articulated arms 15 are hinged on one end away from the corresponding first articulated arm 13 with a support plate 11. The first articulated arm 13 and the second articulated arm 15 are rotatably connected on two articulated point connecting shafts. The adjusting screw 14 is rotatably connected to one articulated point connecting shaft of the first articulated arm 13 and the second articulated arm 15, and is threadedly connected to the other articulated point connecting shaft of the first articulated arm 13 and the second articulated arm 15.

[0037] During specific use, first, a sampling hole compatible with the base 2 is drilled at the sampling position by an external drilling device. The relative distance between the support plate 11 and the base 2 needs to be adjusted according to the sampling depth. At this time, the adjusting screw 14 is rotated. Since the two hinge point connection axes of the adjusting screw 14 and the first hinge arm 13 and the second hinge arm 15 are respectively rotated and threaded, the hinge point connection axis of the connecting seat 12 and the second hinge arm 15 threadedly connected to the adjusting screw 14 begins to move toward the direction close to the other hinge point connection axis as the adjusting screw 14 rotates, and the angle between the two second hinge arms 15 gradually decreases, and the angle between the two first hinge arms 13 decreases synchronously, pushing the support plate 11 away from the base 2, thereby adjusting the relative distance between the support plate 11 and the base 2.

[0038] like Figure 1 and Figure 4 As shown, the sampling mechanism 6 includes a bottom plate 64 rotatably connected to the inner wall of the bottom end of the base 2, a connecting rod 62 is fixedly connected to the center position of the upper surface of the bottom plate 64, a sampling member 66 is provided at the bottom end of the circumferential surface of the connecting rod 62, the sampling member 66 and the bottom plate 64 are jointly provided with a first adjusting member 61, the sampling member 66 is provided with a pulling member 63, and the pulling member 63 and the connecting rod 62 are jointly provided with a second adjusting member 65.

[0039] like Figure 1 , Figure 5 and Figure 6 As shown, the adjustment mechanism 5 includes an adjustment tube 51 that is rotatably connected to the opposite surfaces of two adjacent upper and lower connecting tubes 3, a sliding seat 52 is slidably connected to the inner circumferential surface of the adjustment tube 51, and the four corners of the sliding seat 52 on the side close to the center of the adjustment tube 51 are fixedly connected to limit rods 53, and a connecting block 54 is elastically slidably connected to the four limit rods 53, and a blocking block 55 is fixedly connected to the side of the connecting block 54 away from the center of the adjustment tube 51, a through hole matched with the blocking block 55 is opened on the circumferential surface of the adjustment tube 51, a connecting groove that runs through from top to bottom is opened on the upper surface of the connecting block 54, and a limiting sliding groove matched with the sliding seat 52 is provided on the adjustment tube 51.

[0040] During specific use, the sampling piece 66 is first lifted up by the second adjusting piece 65. After the sampling tube is placed inside the sampling piece 66, the sampling piece 66 is sent to the corresponding position of the adjusting tube 51 through the second adjusting piece 65 according to the soil layer to be sampled, and then the upper and lower positions of the sampling piece 66 are limited by the second adjusting piece 65. At this time, soil sampling work begins. First, the pulling piece 63 generates a pulling force on the connecting block 54 to drive the connecting block 54 to slide on the limiting rod 53, and pull the blocking block 55 to move toward the inside of the connecting tube 3. Then, the pulling piece 63 is turned to drive the sampling piece 66 to rotate ninety degrees on the connecting rod 62, and the blocking block 55 is moved away from the sampling hole position on the adjusting tube 51. At the same time, the sampling piece 66 is aligned with the sampling hole position. At this time, the sampling tube is pushed out from the sampling hole position on the adjusting tube 51 through the first adjusting piece 61 and the sampling piece 66, and soil sampling begins.

[0041] After sampling is completed, the sampling tube is retracted into the interior of the connecting tube 3, and at the same time, the pulling member 63 is moved to drive the sampling member 66 to rotate ninety degrees in the opposite direction on the connecting rod 62, and the sampling member 66 and the blocking block 55 are restored to their original positions, and the blocking block 55 is re-engaged in its corresponding sampling hole. At this time, the sampling member 66 is pulled upward by the second adjusting member 65, and the sampling tube after sampling is lifted up, and after being taken out from the interior of the sampling member 66, the above steps are repeated to perform the next sampling work.

[0042] like Figure 4 , Figure 7 , Figure 8 and Fig. 9 As shown, an operating handle is provided at the top of the connecting rod 62, and the second adjusting member 65 includes a mounting sleeve 654 slidably connected to the operating handle of the connecting rod 62, and the interior of the mounting sleeve 654 is slidably connected to the fixing rod 652, and the upper surface of the fixing rod 652 slides up and down and is penetrated by a rotating rod 651. A limiting pin 653 is elastically slidably connected to the circumferential surface of the mounting sleeve 654, and limiting holes 655 are provided at the positions of the circumferential surface of the fixing rod 652 corresponding to the adjusting tube 51, and the size of the limiting pin 653 is adapted to the size of the limiting hole 655.

[0043] During specific use, the staff first generates a pulling force on the limit pin 653, so that the limit pin 653 is disengaged from the limit card hole 655 on the fixed rod 652, and then generates an upward pulling force on the rotating rod 651, and pulls the sampling member 66 upward through the pulling member 63. When the sampling member 66 moves to above the uppermost connecting tube 3, the pulling of the rotating rod 651 is stopped, and the sampling tube is placed inside the sampling member 66. Then, the sampling member 66 is sent to the position of the adjusting tube 51 corresponding to the soil layer to be sampled through the fixed rod 652. At this time, the pulling force on the limit pin 653 is cancelled, and the limit pin 653 is clamped in the corresponding limit card hole 655 under the action of the elastic force of the limit pin 653 itself, so that the fixed rod 652 and the mounting sleeve 654 remain relatively fixed.

[0044] like Figure 4 , Figure 7 , Figure 8 and Fig. 9 As shown, the pulling member 63 includes a mounting shell 632 fixedly connected to the sampling member 66, a section of the mounting shell 632 perpendicular to the sampling member 66, a side away from the sampling member 66 elastically slides and is penetrated by a connecting pin 631, the connecting pin 631 is located inside the mounting shell 632 and is fixedly connected to a pull rope 633 at one end thereof, a section of the mounting shell 632 parallel to the sampling member 66 is rotatably connected to a winding roller 635, one end of the pull rope 633 away from the connecting pin 631 is wound around the winding roller 635, the connecting pin 631 is slidably matched with the connecting groove on the connecting block 54 in the up and down directions, the bottom end of the fixed rod 652 is fixedly connected to the upper surface of the mounting shell 632, the bottom end of the rotating rod 651 penetrates into the interior of the mounting shell 632 and is fixedly connected to the upper surface of the winding roller 635.

[0045] During specific use, when the fixing rod 652 sends the sampling piece 66 into the corresponding position of the adjusting tube 51, the connecting pin 631 passes through the interior of multiple connecting blocks 54 in sequence from top to bottom along the up and down directions. When the sampling piece 66 moves to the moving position, the connecting pin 631 is synchronously clamped in the corresponding connecting block 54. At this time, the connecting rod 62 is driven to rotate inside the base 2 by rotating the connecting rod 62, and the mounting shell 632 drives the connecting block 54 to move synchronously through the connecting pin 631. Since the blocking block 55 is clamped in the sampling hole on the adjusting tube 51, the connecting pin 631 drives the adjusting tube 51 to rotate between the upper and lower adjacent connecting tubes 3 through the connecting block 54. When the sampling hole on the adjusting tube 51 rotates to the sampling position, stop rotating the connecting rod 62, and then start adjusting the position of the sampling piece 66 to perform soil sampling.

[0046] like Figure 4 , Figure 7 and Figure 8As shown, the sampling member 66 includes a mounting seat 661 rotatably connected to the circumferential surface of the connecting rod 62, the interior of the mounting seat 661 is slidably connected to a sliding block 662 along its length direction, the interior of the sliding block 662 is clamped with a sampling tube, one side of the sliding block 662 passes through the outside of the mounting seat 661 and is fixedly connected to a rack 663, a fixing sleeve adapted to the rack 663 is provided on the mounting seat 661, and the rack 663 is slidably connected to the fixing sleeve.

[0047] like Figure 4 , Figure 7 and Figure 8 As shown, the first adjusting member 61 includes a fixing seat 613 fixedly connected to the mounting seat 661, the lower surface of the fixing seat 613 is rotatably connected to the outer gear ring 614, the inner part of the outer gear ring 614 is slidably connected to the spline shaft 612, the spline shaft 612 and the inner circumferential surface of the outer gear ring 614 are spline matched, the upper surface of the spline shaft 612 slides up and down and is penetrated by a lifting rod 611, the upper surface of the bottom plate 64 is fixedly connected to an arc-shaped connecting plate 615 at a position corresponding to the bottom end of the spline shaft 612, the arc-shaped connecting plate 615 is slidably connected to the sliding sleeve 616, the upper surface of the sliding sleeve 616 is rotatably connected to the bottom end of the spline shaft 612, both ends of the upper surface of the arc-shaped connecting plate 615 are provided with clamping holes adapted to the lifting rod 611, and the outer gear ring 614 is meshed with the rack 663.

[0048] like Fig.10 As shown, a connecting groove 100 is provided above the sampling tube, a push plate 200 is slidably connected inside the sampling tube along the axial direction, and a clamping plate 300 is provided at one end of the sampling tube away from the sampling port, and the clamping plate 300 is clamped and matched with the sliding block 662.

[0049] During specific use, when adjusting the position of the sampling member 66, first rotate the rotating rod 651 to drive the winding roller 635 to rotate inside the mounting shell 632, and reel the pull rope 633. The pull rope 633 pulls the connecting pin 631 to move toward the inside of the mounting shell 632. The connecting pin 631 pulls the connecting block 54 to slide on the limiting rod 53, and pulls the blocking block 55 out of the sampling hole on the adjusting tube 51. Then, an upward pulling force is generated on the lifting rod 611, so that the bottom end of the lifting rod 611 is disengaged from the clamping hole on the arc-shaped connecting plate 615. Then, the mounting sleeve 654 is moved through the mounting shell 632 to drive the mounting seat 661 to rotate ninety degrees on the connecting rod 62 with the connecting rod 62 as the center (such as Fig.11 As shown in the figure, since the blocking block 55 is detached from the sampling hole on the regulating tube 51, the connecting block 54 drives the sliding seat 52 to slide on the regulating tube 51, and moves the blocking block 55 away from the sampling hole position on the regulating tube 51. In combination with the setting of the upper limit groove on the regulating tube 51, the sliding seat 52 can slide against the regulating tube 51.

[0050] At the same time, the mounting shell 632 drives the mounting seat 661 to move to the sampling hole position on the regulating tube 51. At this time, the upward pulling force on the lifting rod 611 is cancelled, so that the bottom end of the lifting rod 611 is re-engaged in the engaging hole on the arc-shaped connecting plate 615, thereby limiting the position of the mounting seat 661. Then, the outer gear ring 614 is driven to rotate on the fixing seat 613 by rotating the spline shaft 612. The outer gear ring 614 drives the rack 663 to slide inside the fixing sleeve on the mounting seat 661. The rack 663 pushes the sliding block 662 to slide inside the mounting seat 661. The sliding block 662 pushes the sampling tube inside the mounting seat 661 from the sampling hole position on the regulating tube 51 (such as Fig.11 As shown), soil sampling is performed. After the sampling is completed, the spline shaft 612 is reversed to drive the rack 663 to return to its original position. At the same time, the sampling member 66 pulls the push plate 200 to pull the sampling tube out of the soil and return it to the interior of the connecting tube 3.

[0051] After the soil sampling is completed, firstly, the above-mentioned method of adjusting the circumferential position of the mounting seat 661 is adopted, and the mounting seat 661 is rotated in the opposite direction by ninety degrees to move the blocking block 55 back to the sampling hole position on the adjusting tube 51, and then the above-mentioned step of pulling the mounting seat 661 upward is repeated to pull the mounting seat 661 to the top again, and the sampling tube is removed from the mounting seat 661 and replaced with a new sampling tube, and the clamping plate 300 on the sampling tube is clamped inside the sliding block 662. After sampling, the sample inside the sampling tube can be completely pushed out from the inside of the sampling tube by sliding the pushing plate 200 inside the connecting slide groove 100, and the above-mentioned steps are repeated for the next sampling work, and the protective cover (such as Fig.12 As shown in the figure, the upper surface of the connecting tube 3 at the top is covered to protect the interior of the connecting tube 3 from entering impurities and avoid affecting the subsequent sampling work.

[0052] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A soil monitoring layered sampling device, characterized in that: It comprises a base (2), the lower surface of the base (2) is provided with a lifting mechanism (1), the upper surface of the base (2) is provided with a plurality of connecting pipes (3) evenly distributed up and down, and the outer circumferential surfaces of the plurality of connecting pipes (3) are commonly fixedly connected with reinforcing ribs (4); An adjusting mechanism (5) for adjusting the sampling position, wherein the adjusting mechanism (5) is arranged between the opposite surfaces of the upper and lower connecting tubes (3); A sampling mechanism (6) for soil sampling, wherein the sampling mechanism (6) is arranged on the inner wall of the bottom end of the base (2); The sampling mechanism (6) comprises a bottom plate (64) rotatably connected to the inner wall of the bottom end of the base (2); a connecting rod (62) is fixedly connected to the center position of the upper surface of the bottom plate (64); a sampling member (66) is provided at the bottom end of the circumferential surface of the connecting rod (62); a first adjusting member (61) is provided on the sampling member (66) and the bottom plate (64); a pulling member (63) is provided on the sampling member (66); and a second adjusting member (65) is provided on the pulling member (63) and the connecting rod (62); The sampling member (66) comprises a mounting seat (661) rotatably connected to the circumferential surface of the connecting rod (62); a sliding block (662) is slidably connected to the interior of the mounting seat (661) along its length direction; a sampling tube is clamped inside the sliding block (662); one side of the sliding block (662) passes through the exterior of the mounting seat (661) and is fixedly connected to a rack (663).

2. The soil quality monitoring layered sampling device according to claim 1 is characterized in that: The lifting mechanism (1) comprises a connecting seat (12) fixedly connected to the lower surface of the base (2); two first hinged arms (13) are hingedly connected to the connecting seat (12) and are symmetrically distributed with respect to the axis of the base (2); a second hinged arm (15) is hingedly connected to one end of the two first hinged arms (13) that is away from each other; the two ends of the two second hinged arms (15) that are away from their corresponding first hinged arms (13) are jointly hingedly connected to a support plate (11); an adjusting screw rod (14) is rotatably connected to two hinge point connecting shafts of the first hinged arm (13) and the second hinged arm (15); the adjusting screw rod (14) is rotatably connected to one hinge point connecting shaft of the first hinged arm (13) and the second hinged arm (15), and is threadedly connected to the other hinge point connecting shaft of the first hinged arm (13) and the second hinged arm (15).

3. The soil quality monitoring layered sampling device according to claim 1 is characterized in that: The adjusting mechanism (5) comprises an adjusting tube (51) connected to the opposite surfaces of two upper and lower adjacent connecting tubes (3) for rotation, a sliding seat (52) being slidably connected to the inner circumferential surface of the adjusting tube (51), four corners of a surface of the sliding seat (52) close to the center of the adjusting tube (51) being fixedly connected to limiting rods (53), a connecting block (54) being elastically slidably connected to the four limiting rods (53), a sealing block (55) being fixedly connected to the surface of the connecting block (54) away from the center of the adjusting tube (51), a through hole matching the sealing block (55) being provided on the circumferential surface of the adjusting tube (51), and a connecting groove penetrating from top to bottom being provided on the upper surface of the connecting block (54).

4. The soil quality monitoring layered sampling device according to claim 1 is characterized in that: The first adjusting member (61) includes a fixing seat (613) fixedly connected to the mounting seat (661), the lower surface of the fixing seat (613) is rotatably connected to an outer gear ring (614), the inner part of the outer gear ring (614) is slidably connected to a spline shaft (612) up and down, the upper surface of the spline shaft (612) slides up and down and is penetrated by a lifting rod (611), the upper surface of the bottom plate (64) is fixedly connected to an arc-shaped connecting plate (615) at a position corresponding to the bottom end of the spline shaft (612), the arc-shaped connecting plate (615) is slidably connected to a sliding sleeve (616), and both ends of the upper surface of the arc-shaped connecting plate (615) are provided with snap-in holes that are compatible with the lifting rod (611), and the outer gear ring (614) is meshed with the rack (663).

5. The soil quality monitoring layered sampling device according to claim 1 is characterized in that: The pulling member (63) includes a mounting shell (632) fixedly connected to the mounting seat (661); a section of the mounting shell (632) perpendicular to the mounting seat (661) is slidably connected to a side away from the mounting seat (661) and is penetrated by a connecting pin (631); a pull rope (633) is fixedly connected to one end of the connecting pin (631) located inside the mounting shell (632); a section of the mounting shell (632) parallel to the mounting seat (661) is rotatably connected to a winding roller (635); and one end of the pull rope (633) away from the connecting pin (631) is wound around the winding roller (635).

6. The soil quality monitoring layered sampling device according to claim 5 is characterized by: An operating handle is provided at the top end of the connecting rod (62), and the second adjusting member (65) includes a mounting sleeve (654) slidably connected to the operating handle of the connecting rod (62); a fixed rod (652) is slidably connected inside the mounting sleeve (654) up and down; the upper surface of the fixed rod (652) slides up and down and is penetrated by a rotating rod (651); a limit pin (653) is elastically slidably connected on the circumferential surface of the mounting sleeve (654); a limit hole (655) is provided on the circumferential surface of the fixed rod (652) at a position corresponding to the adjustment mechanism (5); the size of the limit pin (653) is matched with the size of the limit hole (655); the bottom end of the fixed rod (652) is fixedly connected to the upper surface of the mounting shell (632); the bottom end of the rotating rod (651) penetrates into the interior of the mounting shell (632) and is fixedly connected to the upper surface of the winding roller (635).

7. The soil quality monitoring layered sampling device according to claim 1 is characterized by: A connecting groove (100) is provided above the sampling tube, a push plate (200) is slidably connected to the interior of the sampling tube along the axial direction, and a clamping plate (300) is provided at one end of the sampling tube away from the sampling port, and the clamping plate (300) is clamped and matched with the sliding block (662).

8. The soil quality monitoring layered sampling device according to claim 4 is characterized by: The spline shaft (612) and the inner circumferential surface of the outer gear ring (614) are spline-matched, and the upper surface of the sliding sleeve (616) is rotatably connected to the bottom end of the spline shaft (612).

9. The soil quality monitoring layered sampling device according to claim 1 is characterized by: The mounting seat (661) is provided with a fixing sleeve matched with the rack (663), and the rack (663) is slidably connected to the fixing sleeve.

10. The soil quality monitoring layered sampling device according to claim 3 is characterized by: The regulating tube (51) is provided with a limiting sliding groove matched with the sliding seat (52).

Images