Soil sampling device

Abstract

This utility model discloses a soil sampling device, including two sampling modules arranged opposite each other and connected by a mounting rod. Each sampling module includes: a mounting frame; a first height adjustment module fixedly mounted on the mounting frame; a drive frame slidably mounted on the mounting frame and linked to the first height adjustment module, driven by the first height adjustment module to move vertically; a horizontal adjustment module slidably mounted on the mounting frame; two symmetrically arranged clamping rings linked to the horizontal adjustment module, driven by the horizontal adjustment module, at least one clamping ring moves horizontally to change the distance between the two clamping rings; and a second height adjustment module fixedly mounted on the drive frame and linked to the clamping rings, driven by the second height adjustment module to move vertically. The soil sampling device provided by this utility model can accurately control the sampling depth, is easy to operate, and reduces human error.

Description

Technical Field

[0001] This utility model belongs to the field of sampling device technology, specifically relating to a soil sampling device. Background Technology

[0002] Soil heavy metal sampling aims to identify the types of target pollutants (such as lead, cadmium, mercury, chromium, etc.) and define their spatial pollution range. The selection of sampling methods needs to comprehensively consider the area of ​​the study region, topographic features, and the distribution patterns of pollutants.

[0003] However, traditional soil sampling devices are not conducive to precise control of sampling depth, making it difficult to accurately obtain the vertical distribution characteristics of heavy metals in the soil. This lack of sampling depth information not only directly affects the formulation of subsequent precise remediation plans for contaminated soil, but also reduces the accuracy of sampling point location, thereby affecting the accuracy of determining the contamination range.

[0004] Therefore, it is necessary to provide a soil sampling device to address the aforementioned technical problems.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a soil sampling device that can accurately control the sampling depth, is easy to operate, and reduces human error.

[0007] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows: A soil sampling device, characterized in that the soil sampling device includes two sampling modules arranged opposite to each other, the two sampling modules being connected by a mounting rod, the sampling module comprising: Mounting rack; The first height adjustment module is fixedly installed on the mounting bracket; A drive frame is slidably mounted on the mounting frame and linked to the first height adjustment module. Driven by the first height adjustment module, the drive frame moves in the vertical direction. A horizontal adjustment module is slidably mounted on the mounting bracket; Two symmetrically arranged clamping rings are installed in conjunction with the horizontal adjustment module. Driven by the horizontal adjustment module, at least one of the clamping rings moves in the horizontal direction to change the distance between the two clamping rings. The second height adjustment module is fixedly installed on the drive frame and linked with the clamping ring. Driven by the second height adjustment module, the horizontal adjustment module moves in the vertical direction.

[0008] In one or more embodiments of this utility model, the mounting frame includes a top rod and support rod structures disposed at both ends of the top rod. The support rod structure includes a first rod and a second rod that are spaced apart and arranged vertically. The drive frame is slidably mounted on one of the first rod and the second rod, the horizontal adjustment module is slidably mounted on the other rod, and the first height adjustment module is fixedly mounted on the top rod.

[0009] In one or more embodiments of this utility model, the first height adjustment module includes a first motor, a first screw, and a sleeve. The first motor is fixedly mounted on a mounting bracket. The output shaft of the first motor passes through the mounting bracket in a vertical direction and is fixedly mounted with the first screw. The first screw is arranged in a vertical direction. The sleeve is screwed to the outside of the first screw. The drive frame is fixedly mounted with the sleeve.

[0010] In one or more embodiments of this utility model, the drive frame is fixedly installed at the lower end of the sleeve, and the first height adjustment module further includes a fixing plate fixedly installed at the upper end of the sleeve, with both ends of the fixing plate slidably installed with the mounting frame.

[0011] In one or more embodiments of this utility model, the horizontal adjustment module includes at least one adjustment unit slidably mounted on the mounting frame and a second screw fixedly mounted on the adjustment unit. The adjustment unit includes a first fixed seat slidably mounted on the mounting frame, a second motor fixedly mounted on the first fixed seat and arranged in a horizontal direction, and a first gear fixedly mounted on the output shaft of the second motor. The clamping ring is movably mounted on the second screw, and the second screw is provided with a second gear that meshes with the first gear.

[0012] In one or more embodiments of this utility model, the horizontal adjustment module includes two adjustment units arranged opposite to each other in the horizontal direction, and the two ends of the second screw are respectively fixedly installed with the two adjustment units. The second screw includes two main body parts that are respectively linked and installed with the two clamping rings, and the thread directions on the two main body parts are arranged in opposite directions.

[0013] In one or more embodiments of this utility model, the clamping ring includes a clamping part and a connecting part. The clamping part is linked to the horizontal adjustment module through the connecting part. The connecting part is disposed below the drive frame. On the horizontal plane, the projection of the clamping part is separate from the projection of the drive frame.

[0014] In one or more embodiments of this utility model, the second height adjustment module includes a third motor, a limiting rod, a third gear, and a rack. The third motor is fixedly installed on the drive frame and arranged in a horizontal direction. The output shaft of the third motor is arranged in a horizontal direction and fixedly installed on the limiting rod. The limiting rod is arranged in a horizontal direction. The third gear is fixedly installed on the limiting rod. The rack is fixedly installed on the horizontal adjustment module and is arranged in a vertical direction and meshes with the third gear.

[0015] In one or more embodiments of this utility model, the clamping ring is installed in conjunction with the horizontal adjustment module via a rack, the drive frame is provided with a first clearance groove that runs through the vertical direction and a second clearance groove that runs through the horizontal direction, the first clearance groove and the second clearance groove are connected, the rack is inserted into the first clearance groove in the vertical direction, and the third gear meshes with the rack through the second clearance groove.

[0016] In one or more embodiments of this utility model, the second height adjustment module further includes a second fixed base, and the third motor is fixedly mounted on the drive frame via the second fixed base; and / or, The third gear has a limiting groove on its periphery, and the side wall of the rack abuts against the limiting groove.

[0017] Compared with existing technologies, the soil sampling device of this invention uses a horizontal adjustment module to control the spacing of the clamping rings to securely hold the sampling component, and employs a two-stage height adjustment mechanism to achieve precise control of the sampling depth: the first height adjustment module is responsible for coarse positioning of the sampling height, while the second height adjustment module performs fine-tuning. This hierarchical adjustment design can effectively adapt to the needs of different sampling depths, ensuring the precise spatial positioning of the sampling component at the target sampling point. This precise positioning capability significantly reduces errors introduced by human operation, thereby accurately defining the vertical distribution characteristics of heavy metal pollution in the soil and providing a reliable data foundation for subsequent targeted remediation of contaminated soil. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of a soil sampling device in one embodiment of the present invention; Figure 2This is a schematic diagram of the sampling component in one embodiment of the present invention; Figure 3 This is a three-dimensional structural diagram of the sampling module in one embodiment of the present invention; Figure 4 This is a three-dimensional structural diagram of the horizontal adjustment module, clamping ring, and rack in one embodiment of the present invention; Figure 5 This is a three-dimensional structural diagram of the drive frame, horizontal adjustment module, clamping ring, and second height adjustment module in one embodiment of the present invention; Figure 6 This is a simplified schematic diagram of the structure of the third gear, rack, and clamping ring in one embodiment of the present invention; Figure 7 This is a simplified schematic diagram of the structure of the third gear and rack in one embodiment of the present invention.

[0020] Explanation of key figure labels: 1-Sampling module; 11-Mounting bracket; 111-Top rod; 112-Support rod structure; 1121-First rod body; 1122-Second rod body; 113-Connecting rod; 114-Slide groove; 12-First height adjustment module; 121-First motor; 122-First screw; 123-Sleeve; 124-Fixing plate; 13-Drive frame; 131-First clearance groove; 132-Second clearance groove; 14-Horizontal adjustment module ; 141-Adjustment unit; 1411-First fixed base; 1412-Second motor; 1413-First gear; 142-Second screw; 1421-Second gear; 15-Clamping ring; 151-Clamping part; 152-Connecting part; 16-Second height adjustment module; 161-Third motor; 162-Limiting rod; 163-Third gear; 1631-Limiting groove; 164-Rack; 165-Second fixed base; 2-Mounting rod; 3-Sampling component; 31-Head; 32-Sampling section; 33-Sampling block; 331-Placement plate; 332-Blocking plate. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] The technical solution of this utility model will now be described with reference to the accompanying drawings.

[0025] Reference Figure 1 , Figure 2 As shown, the soil sampling device in this embodiment may include two sampling modules 1 arranged opposite to each other, and the two sampling modules 1 are connected by a mounting rod 2. The sampling module 1 may include a mounting frame 11, a first height adjustment module 12, a drive frame 13, a horizontal adjustment module 14, two symmetrically arranged clamping rings 15 and a second height adjustment module 16. The first height adjustment module 12 can be fixedly installed on the mounting frame 11; the drive frame 13 can be slidably installed on the mounting frame 11 and linked with the first height adjustment module 12, and driven by the first height adjustment module 12, the drive frame 13 moves vertically; the horizontal adjustment module 14 can be slidably installed on the mounting frame 11; the clamping ring 15 can be linked with the horizontal adjustment module 14, and driven by the horizontal adjustment module 14, at least one clamping ring 15 can move horizontally to change the distance between the two clamping rings 15, thereby clamping the sampling piece 3 through the clamping ring 15; the second height adjustment module 16 can be fixedly installed on the drive frame 13 and linked with the clamping ring 15, and driven by the second height adjustment module 16, the horizontal adjustment module 14 can move vertically. The sampling piece 3 includes a head 31 disposed in the clamping part 151 and a sampling part 32 disposed on the head 31. When the sampling piece 3 is clamped on the clamping part 151, the sampling part 32 is oriented downwards. The sampling section 32 is provided with an outwardly extending sampling block 33. The sampling block 33 includes a placement plate 331 surrounding the periphery of the sampling section 32 and a blocking plate 332 connected to the placement plate 331. The blocking plate 332 can be an upwardly inclined flat plate or an upwardly and inwardly rolled curved plate. The placement plate 331 is used to place soil, and the blocking plate 332 can prevent the soil from detaching from the sampling section 32. When the sampling member 3 changes its vertical position with the movement of the clamping ring 15, the sampling section 32 can be inserted into or pulled out of the soil, thereby collecting a soil sample.

[0026] This soil sampling device uses a horizontal adjustment module 14 to control the spacing of the clamping rings 15 to securely hold the sampling component 3, and employs a two-stage height adjustment mechanism to achieve precise control of the sampling depth: the first height adjustment module 12 is responsible for coarse positioning of the sampling height, while the second height adjustment module 16 performs fine-tuning of the sampling height. This tiered adjustment design effectively adapts to the needs of different sampling depths, ensuring that the sampling component 3 is accurately positioned in the spatial coordinates of the target sampling point. This precise positioning capability significantly reduces errors introduced by human operation, thereby accurately defining the vertical distribution characteristics of heavy metal pollution in the soil and providing a reliable data foundation for subsequent targeted remediation of contaminated soil.

[0027] Specifically, in order to mount the first height adjustment module 12, the drive frame 13, and the level adjustment module 14 onto the mounting bracket 11, refer to Figures 1-3 As shown, the mounting frame 11 in this embodiment may include a top rod 111 and a support rod structure 112 that can be disposed at both ends of the top rod 111. The support rod structure 112 may include a first rod 1121 and a second rod 1122 that can be spaced apart and arranged vertically. The support structure also includes a connecting rod 113 that connects the first rod 1121 and the second rod 1122. The connecting rod 113 is disposed at the lower end of the first rod 1121 and the second rod 1122. The top rod 111, the first rod 1121, the second rod 1122, and the connecting rod 113 enclose a sliding groove 114. The drive frame 13 is slidably mounted on the first rod 1121, the horizontal adjustment module 14 is slidably mounted on the second rod 1122, and the first height adjustment module 12 can be fixedly mounted on the top rod 111. The horizontal adjustment module 14 on one mounting frame 11 is disposed away from the horizontal adjustment module 14 on the other mounting frame 11. When the drive frame 13 and the horizontal adjustment module 14 are slidably mounted on the support structure, the drive frame 13 and the horizontal adjustment module 14 can be partially slidably disposed within the slide groove 114. Of course, this application is not limited to this. In other embodiments, the drive frame 13 is slidably mounted on the second rod 1122, and the horizontal adjustment module 14 is slidably mounted on the first rod 1121, all of which fall within the protection scope of this application.

[0028] In order to achieve the purpose of coarsely adjusting the drive frame 13 via the first height adjustment module 12, refer to Figures 1-3As shown, the first height adjustment module 12 in this embodiment may include a first motor 121, a first screw 122, and a sleeve 123. The first motor 121 can be fixedly mounted on the mounting bracket 11. The output shaft of the first motor 121 passes through the mounting bracket 11 vertically and can be fixedly mounted with the first screw 122. The first screw 122 can be arranged vertically. The sleeve 123 is screwed to the outside of the first screw 122. The drive frame 13 can be fixedly mounted with the sleeve 123. According to this design, when the first motor 121 is running, it drives the output shaft to rotate, which in turn drives the first screw 122 to rotate. Since the drive frame 13 is slidably mounted on the first rod body 1121, the sleeve 123 cannot rotate circumferentially. When the first screw 122 rotates, the sleeve 123 moves along the length of the screw, thereby driving the drive frame 13, which is fixedly mounted with the sleeve 123, to slide on the first rod body 1121.

[0029] Preferably, in order to facilitate limiting the position of the sleeve 123 and prevent the sleeve 123 from rotating with the output shaft, refer to Figures 1-3 As shown, in this embodiment, the drive frame 13 can be fixedly installed at the lower end of the sleeve 123. The first height adjustment module 12 can also include a fixing plate 124 that can be fixedly installed at the upper end of the sleeve 123. The two ends of the fixing plate 124 are slidably installed with the mounting frame 11. According to this design, the upper end of the sleeve 123 can be limited by the fixing plate 124, and the lower end of the sleeve 123 can be limited by the drive frame 13.

[0030] In order to achieve the clamping of the sampling piece 3 by adjusting the distance between the two clamping rings 15 through the horizontal adjustment module 14, refer to Figures 1-4As shown, the horizontal adjustment module 14 in this embodiment may include at least one adjustment unit 141 slidably mounted on the mounting frame 11 and a second screw 142 fixedly mounted on the adjustment unit 141. The second screw 142 is horizontally arranged. The adjustment unit 141 may include a first fixed seat 1411 slidably mounted on the mounting frame 11, a second motor 1412 that can be fixedly mounted on the first fixed seat 1411 and can be arranged in the horizontal direction, and a first gear 1413 that can be fixedly mounted on the output shaft of the second motor 1412. The clamping ring 15 is movably mounted on the second screw 142 and is limited in the circumference of the second screw 142 by the drive frame 13. The second screw 142 may be provided with a second gear 1421 that meshes with the first gear 1413. When there is only one adjustment unit 141, the first end of the second screw 142 is fixedly installed with the first fixed seat 1411, and the second end of the second screw 142 is slidably installed with the drive frame 13 through another first fixed seat 1411 and the mounting frame 11 (or the second end of the second screw 142 is suspended, but the structure of this scheme is less stable); when both support rod structures 112 are equipped with adjustment units 141, the two ends of the second screw 142 are fixedly installed with the corresponding adjustment units 141 respectively. According to this design, when the second motor 1412 rotates, it drives the output shaft to rotate, which in turn drives the first gear 1413 to rotate, and then drives the second gear 1421 meshing with the first gear 1413 to rotate, thereby driving the second screw 142 to rotate. Since the clamping ring 15 is limited by the drive frame 13 along the circumference of the second screw 142, when the second screw 142 rotates, the clamping ring 15 moves along the length direction of the second screw 142, thereby adjusting the distance between the two clamping rings 15 to clamp the sampling piece 3.

[0031] Preferably, to facilitate quick adjustment of the distance between the two clamping rings 15, refer to Figure 3 , Figure 4 As shown, the horizontal adjustment module 14 in this embodiment may include two adjustment units 141 that can be arranged opposite each other in the horizontal direction. The two ends of the second screw 142 can be fixedly installed with the two adjustment units 141 respectively. The second screw 142 may include two main bodies that are respectively linked and installed with two clamping rings 15, and the thread directions on the two main bodies can be arranged in opposite directions. When the second screw 142 rotates, the two clamping rings 15 move in opposite directions or relative to each other, thereby quickly adjusting the distance between the two clamping rings 15.

[0032] To avoid motion interference between the clamping ring 15 and the drive frame 13, refer to... Figure 1 , Figure 4As shown, the clamping ring 15 in this embodiment may include a clamping part 151 and a connecting part 152. The clamping part 151 is linked to the horizontal adjustment module 14 through the connecting part 152. The connecting part 152 may be located below the drive frame 13. On the horizontal plane, the projection of the clamping part 151 is separate from the projection of the drive frame 13. According to this design, it is convenient for the clamping part 151 to clamp the sampling piece 3 and avoid interference between the sampling piece 3 and the drive frame 13. At the same time, in order to avoid the operation of the horizontal adjustment module 14 affecting the clamping part 151's clamping of the sampling piece 3, the horizontal adjustment modules 14 on the two mounting frames 11 in this embodiment are arranged opposite to each other, and the clamping rings 15 in the two adjustment units 141 are arranged opposite to each other. The lower edge height of the horizontal adjustment module 14 is lower than the upper edge height of the clamping ring 15.

[0033] To facilitate fine-tuning of the sampling height via the second height adjustment module 16, refer to Figure 4 , Figure 5 As shown, the second height adjustment module 16 in this embodiment may include a third motor 161, a limiting rod 162, a third gear 163, and a rack 164. The third motor 161 can be fixedly installed with the drive frame 13 and can be positioned horizontally. The output shaft of the third motor 161 can be positioned horizontally and fixedly installed with the limiting rod 162. The limiting rod 162 can be positioned horizontally. The third gear 163 can be fixedly installed on the limiting rod 162. The rack 164 can be fixedly installed with the horizontal adjustment module 14 and can be positioned vertically and mesh with the third gear 163. The second height adjustment module 16 in one sampling module 1 is located away from the second height adjustment module 16 in the other sampling module 1. Specifically, the limiting rod 162 includes a round rod and a limiting block disposed on the side wall of the round rod. The limiting rod 162 is inserted into the third gear 163. A portion of the inner wall of the third gear 163 is fixedly installed with the outer wall of the round rod, and another portion of the inner wall of the third gear 163 is fixedly installed with the outer wall of the limiting block. According to this design, when the third motor 161 operates and drives the limiting rod 162 to rotate, the third gear 163 rotates with the limiting rod 162, thereby driving the rack 164 to generate displacement in the vertical direction, thereby finely adjusting the height of the clamping ring 15 through the second height adjustment module 16.

[0034] In order to limit the clamping ring 15 along the circumferential direction of the second screw 142 by means of the drive frame 13, refer to Figure 5 , Figure 6As shown, in this embodiment, the clamping ring 15 is linked to the second screw 142 in the horizontal adjustment module 14 via a rack 164. The drive frame 13 may be provided with a first clearance groove 131 extending vertically and a second clearance groove 132 extending horizontally. The first clearance groove 131 and the second clearance groove 132 are connected. The rack 164 can be inserted vertically into the first clearance groove 131, and the third gear 163 can mesh with the rack 164 through the second clearance groove 132. Specifically, the rack 164 is disposed on the connecting part 152. To avoid interference from the drive frame 13 in the meshing between the third gear 163 and the rack 164, the meshing point between the third gear 163 and the rack 164 can be disposed in the second clearance groove 132. When the third gear 163 and the rack 164 mesh, the rack 164 can move away from the outer wall of the third gear 163 and abut against the inner wall of the second clearance groove 132, thereby preventing the clamping ring 15 from rotating circumferentially along the second screw 142.

[0035] To ensure the structural stability of the third motor 161 during operation, refer to Figure 5 , Figure 6 As shown, the second height adjustment module 16 in this embodiment may also include a second fixed base 165, and the third motor 161 may be fixedly mounted on the drive frame 13 through the second fixed base 165.

[0036] Preferably, refer to Figure 7 As shown, in this embodiment, a limiting groove 1631 may be provided on the periphery of the third gear 163, and the side wall of the rack 164 may abut against the limiting groove 1631. According to this design, the rack 164 can be prevented from shifting in the vertical direction when the third gear 163 rotates and drives the rack 164 to move in the vertical direction.

[0037] The first motor 121, the second motor 1412, and the third motor 161 in this application can be a DC motor, an AC asynchronous motor, an AC synchronous motor, or other rotary drive motors with rotary drive function.

[0038] It should be noted that the structures and working principles of the first motor 121, the second motor 1412, and the third motor 161, which are not described in detail in this application, can all adopt existing solutions in the prior art, which can be understood and accepted by those skilled in the art, and therefore will not be described in detail.

[0039] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] In the description of the embodiments of this utility model, it should also be noted that the terms "first" and "second" used herein do not specifically refer to any order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A soil sampling device, characterized in that, The soil sampling device includes two sampling modules (1) arranged opposite to each other, and the two sampling modules (1) are connected by a mounting rod (2). The sampling module (1) includes: Mounting bracket (11); The first height adjustment module (12) is fixedly installed on the mounting bracket (11); The drive frame (13) is slidably mounted on the mounting frame (11) and linked with the first height adjustment module (12). Driven by the first height adjustment module (12), the drive frame (13) moves in the vertical direction. A horizontal adjustment module (14) is slidably mounted on the mounting bracket (11); Two symmetrically arranged clamping rings (15) are installed in conjunction with the horizontal adjustment module (14). Driven by the horizontal adjustment module (14), at least one of the clamping rings (15) moves in the horizontal direction to change the distance between the two clamping rings (15). The second height adjustment module (16) is fixedly installed on the drive frame (13) and is linked to the clamping ring (15). Driven by the second height adjustment module (16), the horizontal adjustment module (14) moves in the vertical direction.

2. The soil sampling device according to claim 1, characterized in that, The mounting frame (11) includes a top rod (111) and a support rod structure (112) disposed at both ends of the top rod (111). The support rod structure (112) includes a first rod body (1121) and a second rod body (1122) that are spaced apart and arranged in a vertical direction. The drive frame (13) is slidably mounted on one of the first rod body (1121) and the second rod body (1122). The horizontal adjustment module (14) is slidably mounted on the other one. The first height adjustment module (12) is fixedly mounted on the top rod (111).

3. The soil sampling device according to claim 1, characterized in that, The first height adjustment module (12) includes a first motor (121), a first screw (122) and a sleeve (123). The first motor (121) is fixedly mounted on the mounting bracket (11). The output shaft of the first motor (121) passes through the mounting bracket (11) in the vertical direction and is fixedly mounted with the first screw (122). The first screw (122) is arranged in the vertical direction. The sleeve (123) is screwed to the outside of the first screw (122). The drive frame (13) is fixedly mounted with the sleeve (123).

4. The soil sampling device according to claim 3, characterized in that, The drive frame (13) is fixedly installed at the lower end of the sleeve (123). The first height adjustment module (12) also includes a fixing plate (124) fixedly installed at the upper end of the sleeve (123). The two ends of the fixing plate (124) are slidably installed with the mounting frame (11).

5. The soil sampling device according to claim 1, characterized in that, The horizontal adjustment module (14) includes at least one adjustment unit (141) slidably mounted on the mounting frame (11) and a second screw (142) fixedly mounted on the adjustment unit (141). The adjustment unit (141) includes a first fixed seat (1411) slidably mounted on the mounting frame (11), a second motor (1412) fixedly mounted on the first fixed seat (1411) and arranged in the horizontal direction, and a first gear (1413) fixedly mounted on the output shaft of the second motor (1412). The clamping ring (15) is movably mounted on the second screw (142), and the second screw (142) is provided with a second gear (1421) that meshes with the first gear (1413).

6. The soil sampling device according to claim 5, characterized in that, The horizontal adjustment module (14) includes two adjustment units (141) arranged opposite each other in the horizontal direction. The two ends of the second screw (142) are fixedly installed with the two adjustment units (141) respectively. The second screw (142) includes two main body parts that are respectively linked to the two clamping rings (15). The threads on the two main body parts are arranged in opposite directions.

7. The soil sampling device according to claim 1, characterized in that, The clamping ring (15) includes a clamping part (151) and a connecting part (152). The clamping part (151) is linked to the horizontal adjustment module (14) through the connecting part (152). The connecting part (152) is located below the drive frame (13). On the horizontal plane, the projection of the clamping part (151) is separate from the projection of the drive frame (13).

8. The soil sampling device according to claim 1, characterized in that, The second height adjustment module (16) includes a third motor (161), a limiting rod (162), a third gear (163), and a rack (164). The third motor (161) is fixedly installed on the drive frame (13) and arranged in the horizontal direction. The output shaft of the third motor (161) is arranged in the horizontal direction and fixedly installed on the limiting rod (162). The limiting rod (162) is arranged in the horizontal direction. The third gear (163) is fixedly installed on the limiting rod (162). The rack (164) is fixedly installed on the horizontal adjustment module (14). The rack (164) is arranged in the vertical direction and meshes with the third gear (163).

9. The soil sampling device according to claim 8, characterized in that, The clamping ring (15) is linked to the horizontal adjustment module (14) via a rack (164). The drive frame (13) is provided with a first clearance groove (131) that runs through the vertical direction and a second clearance groove (132) that runs through the horizontal direction. The first clearance groove (131) and the second clearance groove (132) are connected. The rack (164) is inserted into the first clearance groove (131) in the vertical direction. The third gear (163) meshes with the rack (164) through the second clearance groove (132).

10. The soil sampling device according to claim 8, characterized in that, The second height adjustment module (16) further includes a second fixed base (165), and the third motor (161) is fixedly mounted on the drive frame (13) via the second fixed base (165); and / or, The third gear (163) has a limiting groove on its periphery, and the side wall of the rack (164) abuts against the limiting groove.

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