Sampling device for soil organic carbon detection

Abstract

The invention discloses a sampling device for soil organic carbon detection, and relates to the technical field of soil sample sampling, the sampling device comprises an operating mechanism, the inner surface wall of the operating mechanism is fixedly provided with a sampling mechanism, the top of the operating mechanism is slidably embedded with a collecting mechanism, and the bottom of the operating mechanism is in engaged transmission with a reinforcing mechanism; in use, through precise cooperation of two groups of bearings, a driving motor, an outer gear and a large gear and a synergistic effect of an adjusting assembly and a telescopic assembly, four groups of fixing pins go deep into soil at the same time, so that the connection strength between the equipment and the ground is further enhanced, and the stability of the equipment in a sampling process is improved. By means of the design, it is guaranteed that the equipment cannot move due to vibration or external force in the operation process, the vertical state during sampling is kept, therefore, the safety and reliability of sampling operation are guaranteed, the risk of faults in the operation process of the equipment is reduced through stable installation and an efficient sampling mechanism, and the safety of the equipment is improved. And the safety of operators is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of soil sample sampling, in particular to a sampling device for soil organic carbon detection. Background Art

[0002] For soil, organic carbon (TOC) is an important indicator of physical and chemical properties. Soil organic matter is an important part of the global carbon cycle and has a great influence on the fixation (enrichment of organic matter) or release (oxidation of organic matter or decomposition of organic matter by microorganisms) of atmospheric carbon dioxide. In addition, soil organic carbon (SOC) is an important indicator of soil health and ecosystem function, and its content affects plant growth, soil quality and agricultural productivity. Therefore, accurate determination of soil organic carbon, especially in different ecological environments and soil types, is of great practical significance for agricultural management, environmental protection and response to climate change, so it is necessary to sample and test the soil through a sampling device.

[0003] When sampling soil, vertical sampling is an important guarantee that soil samples can accurately reflect the characteristics of each soil layer. If the sampling device is not vertical, it may cause the mixing of soils from different soil layers, especially the mixing of upper and lower soil layers, thereby destroying the natural hierarchical structure of the soil sample and making the sample unable to accurately represent the true situation of each soil layer. The existing soil detection sampling usually involves inserting a sampling tube into the soil, then pulling out the sampling tube, and the soil remaining in the sampling tube is the soil sample. This process is all done manually. Since manual operation cannot maintain its vertical state, it will not only waste time and energy, but may also increase the uncertainty and error in the sampling process, thereby affecting the accurate judgment of the physical and chemical properties of the soil, resulting in inaccurate final test data. Summary of the invention

[0004] The purpose of the present invention is to provide a sampling device for soil organic carbon detection, so as to solve the problem that when the equipment proposed in the above background is in use, the soil sample sampling equipment cannot be kept in a stable state, which increases the uncertainty and error in the sampling process, thereby affecting the accurate judgment of the physical and chemical properties of the soil and easily causing inaccurate detection data.

[0005] To achieve the above object, the present invention provides the following technical solution: a sampling device for soil organic carbon detection, comprising an operating mechanism, a sampling mechanism is fixedly installed on the inner surface wall of the operating mechanism, a collecting mechanism is slidably embedded on the top of the operating mechanism, and the characteristic is that: the bottom of the operating mechanism is meshed and driven with a reinforcement mechanism;

[0006] The reinforcement mechanism includes a group of internal gears, a group of internal gears are fixedly inserted with threaded rods inside, a group of threaded rods are fixedly sleeved with two bearings on the outer wall, a group of threaded rods are threadedly connected with linkage plates on the outer wall, and a group of linkage plates are fixedly installed with an annular plate A between the outer walls. Four adjustment components are fixedly installed on the outer wall of the annular plate A, and a bottom plate is fixedly installed between the bottoms of one of the two groups of bearings. A fixing groove B is opened at the top center of the bottom plate, a group of telescopic components are fixedly installed on the outer wall of the bottom plate, a group of telescopic ends of the telescopic components are fixedly connected with adjustment plates, and a group of adjustment plates are fixedly connected with fixing pins at the bottom;

[0007] The collecting mechanism comprises an annular plate B, on the bottom of which an annular driving block A is fixedly mounted.

[0008] Preferably, a group of top plates are fixedly connected to the top of the annular plate B, and the tops of the group of top plates are all fixedly connected to an annular seat. The top plates can support and fix the annular seat, thereby improving the effect of the device in actual use.

[0009] Preferably, a group of collecting boxes are slidably embedded in the inner surface wall of the annular seat, and a group of collecting boxes are provided with input ports on one side of the outer wall. After sampling is completed, the collecting boxes are moved on the inner surface wall of the annular seat to move to a suitable position, and the input ports are connected with other structures. Subsequently, the sampled soil samples enter the interior of the collecting box under the transmission of the other structures.

[0010] Preferably, the operating mechanism includes an outer frame plate, and one side of the outer wall of one of the two groups of bearings is fixedly connected to the inner surface wall of the outer frame plate, a driving groove A is provided at the top of the outer frame plate, and the outer wall of the annular driving block A is slidably embedded in the driving groove A, and a driving groove B is provided at the bottom of the outer frame plate, and the outer wall of the outer frame plate is fixedly connected to two handle bars, and the bottom of the outer frame plate is in movable contact with a large gear. During use, the bearing can reduce the friction of the parts and extend their service life. Under the action of the driving groove A, the annular driving block A can move smoothly inside it. Under the action of the two handle bars, the staff can operate and control the device more easily, improve work efficiency, and use the large gear as a transmission medium to drive other parts to work.

[0011] Preferably, a group of tooth grooves are formed on the inner surface wall of the large gear, an annular driving block B is fixedly mounted on the top of the large gear, and the outer surface wall of the annular driving block B is slidably embedded in the driving groove B. Under the action of the tooth grooves and the transmission device, the large gear can be driven to rotate, and under the interaction of the annular driving block B and the driving groove B, the large gear can be limited when rotating, so that the large gear can rotate smoothly inside the driving groove B, thereby improving its working stability.

[0012] Preferably, the outer wall of the large gear meshes with two external gears, the tops of the two external gears are fixedly connected with a drive motor A, the outer walls of the two drive motors A are fixedly sleeved with motor plates, and one side of the outer walls of the two motor plates is fixedly connected to the outer wall of the outer frame plate. Under the action of the synchronous starter, the two drive motors A can respectively maintain the same frequency and direction of rotation, and drive the external gears fixedly connected to the bottom of the two drive motors A to rotate, and use the external gears as a transmission medium, so that they can rotate with the large gear and drive other components to work.

[0013] Preferably, the inner surface wall of the outer frame plate is fixedly connected with a fixing plate, and a fixing groove A is opened at the top center of the fixing plate. The fixing groove A is used to install other components, and under the action of the fixing plate, the connection and fixation of the internal components of the sampling device can be completed.

[0014] Preferably, the sampling mechanism comprises an annular tube, and the outer surface wall of the annular tube is fixedly inserted between the fixing groove A and the inner surface wall of the fixing groove B. An embedding groove is provided inside the annular tube, and during use, the annular tube and the embedding groove cooperate with each other to limit one of the components inside the sampling device, thereby improving the sampling effect.

[0015] Preferably, the inner surface wall of the annular tube is in active contact with the sampling tube, the outer surface wall of the sampling tube is fixedly connected with a group of embedded blocks, and the outer surfaces of the group of embedded blocks are all movably embedded in the inner surface of the embedded groove, and the inner surface wall of the sampling tube is fixedly connected with an inner lining plate. A spiral rod is driven and rotated inside the inner lining plate, and an output port is provided near the top of the outer surface wall of the sampling tube. Through the interaction between the embedded block and the embedded groove, the sampling tube can be limited so that it can move up and down vertically to the ground inside the annular tube, so that the sampling tube can be inserted into the deep soil layer, and the rotation of the spiral rod can make the soil sample be subjected to the force of rotational extrusion, so that the soil sample moves upward inside the sampling tube.

[0016] Preferably, the top of the spiral rod is fixedly connected with a driving motor B, the outer wall of the driving motor B is fixedly sleeved with a motor frame, and the bottom of the motor frame is fixedly installed with the top of the sampling tube. During use, the spiral rod can be driven to rotate under the action of the driving motor B, and the driving motor B can be fixed and limited under the action of the motor frame to avoid rotation during use, thereby improving the transmission effect of the spiral rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In use, the present invention can make the fixing pin move outward through the precise matching of two sets of bearings, the drive motor A, the outer gear and the large gear, and the coordinated action of the adjustment component and the telescopic component. When it moves to the appropriate position, the drive motor A stops working and inserts the fixing pin into the soil, thereby enhancing the connection strength between the equipment and the ground and improving the stability of the equipment during the sampling process. This design ensures that the equipment will not shift due to vibration or external forces during operation, and maintains a vertical state during sampling, thereby ensuring the safety and reliability of the sampling operation. In addition, the stable installation and efficient sampling mechanism also reduce the risk of equipment failure during operation and ensure the safety of operators.

[0019] 2. In the use of the present invention, the equipment adopts a perfect combination of mechanical and electric drive through the cooperation of the operating mechanism, sampling mechanism, reinforcement mechanism and collection mechanism, and easily takes out the soil sample from the ground and transports it to the output port through the high-speed rotation of the spiral rod. This process not only saves labor, but also greatly improves the sampling efficiency, so that soil analysis work can be carried out more quickly, and multiple collection boxes can be replaced, so that the equipment can continuously collect soil samples, avoiding pauses when collecting and sampling soil samples, thereby further improving the sampling efficiency, and ensuring the continuity of the sampling device when working, and improving work efficiency.

[0020] 3. During use, the overall design of the present invention fully considers the requirements of sampling efficiency and accuracy, and realizes fast and accurate soil sample sampling through automated and mechanized means, which not only improves work efficiency, but also reduces the impact of human errors on sampling results, and provides reliable data support for subsequent soil sample analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a main structural stereogram of a sampling device for detecting soil organic carbon according to the present invention;

[0022] Figure 2 It is a partial structural stereogram of a sampling device for detecting soil organic carbon according to the present invention;

[0023] Figure 3 This is an enlarged view of structure A in a sampling device for detecting soil organic carbon according to the present invention;

[0024] Figure 4 It is a three-dimensional exploded diagram of the operating mechanism in a sampling device for detecting soil organic carbon according to the present invention;

[0025] Figure 5 It is a sectional three-dimensional exploded view of a sampling mechanism in a sampling device for detecting soil organic carbon according to the present invention;

[0026] Figure 6 It is a partial three-dimensional exploded diagram of a sampling device for detecting soil organic carbon according to the present invention;

[0027] Figure 7 A three-dimensional diagram of a collecting mechanism in a sampling device for detecting soil organic carbon according to the present invention;

[0028] Figure 8 This is a cross-sectional view of the main structure of a sampling device for detecting soil organic carbon in the present invention.

[0029] In the figure: 1. operating mechanism; 11. outer frame plate; 111. drive groove A; 112. drive groove B; 13. handle bar; 14. large gear; 141. tooth groove; 142. annular drive block B; 15. outer gear; 16. drive motor A; 17. motor plate; 18. fixing plate; 181. fixing groove A; 2. sampling mechanism; 21. annular tube; 211. embedded groove; 22. sampling tube; 221. embedded block; 23. inner lining plate; 24. spiral rod; 241. Output port; 25, driving motor B; 26, motor frame; 3, reinforcement mechanism; 31, internal gear; 32, threaded rod; 33, bearing; 34, linkage plate; 35, annular plate A; 36, adjustment component; 37, bottom plate; 371, fixing groove B; 38, telescopic component; 39, adjustment plate; 391, fixing pin; 4, collection mechanism; 41, annular plate B; 42, annular driving block A; 43, top plate; 44, annular seat; 45, collection box; 451, input port. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described 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 creative work are within the scope of protection of the present invention.

[0031] Reference Figure 1-8As shown: The present invention provides a sampling device for soil organic carbon detection, comprising an operating mechanism 1, a sampling mechanism 2 is fixedly installed on the inner surface wall of the operating mechanism 1, and a collecting mechanism 4 is slidably embedded on the top of the operating mechanism 1, characterized in that: a reinforcing mechanism 3 is meshed and driven at the bottom of the operating mechanism 1;

[0032] The reinforcement mechanism 3 includes a group of internal gears 31, a threaded rod 32 is fixedly inserted inside the group of internal gears 31, two bearings 33 are fixedly sleeved on the outer wall of the group of threaded rods 32, a linkage plate 34 is threadedly connected to the outer wall of the group of threaded rods 32, an annular plate A35 is fixedly installed between the outer walls of the group of linkage plates 34, four adjustment components 36 are fixedly installed on the outer wall of the annular plate A35, a bottom plate 37 is fixedly installed between the bottoms of one of the two groups of bearings 33, a fixing groove B371 is opened at the top center of the bottom plate 37, a group of telescopic components 38 are fixedly installed on the outer wall of the bottom plate 37, the telescopic ends of the group of telescopic components 38 are fixedly connected to the adjustment plates 39, and the bottoms of the group of adjustment plates 39 are fixedly connected to the fixing pins 391;

[0033] The collecting mechanism 4 comprises an annular plate B41, and an annular driving block A42 is fixedly mounted on the bottom of the annular plate B41.

[0034] like Figure 7 As shown, a group of top plates 43 are fixedly connected to the top of the annular plate B41, and an annular seat 44 is fixedly connected to the top of each group of top plates 43. The top plates 43 can support and fix the annular seat 44, thereby improving the effect of the device in actual use.

[0035] like Figure 7 As shown, a group of collecting boxes 45 are slidably embedded in the inner surface wall of the annular seat 44, and an input port 451 is opened on one side of the outer wall of the group of collecting boxes 45. After the sampling is completed, the collecting boxes 45 are moved on the inner surface wall of the annular seat 44 to move to a suitable position, and the input port 451 is connected with other structures, and then the sampled soil samples enter the interior of the collecting box 45 under the transmission of other structures.

[0036] like Figure 4As shown, the operating mechanism 1 includes an outer frame plate 11, and one side of the outer wall of one group of two groups of bearings 33 is fixedly connected to the inner surface wall of the outer frame plate 11, a driving groove A111 is provided on the top of the outer frame plate 11, and the outer wall of the annular driving block A42 is slidably embedded in the driving groove A111, and a driving groove B112 is provided at the bottom of the outer frame plate 11, and two handle rods 13 are fixedly connected to the outer wall of the outer frame plate 11, and a large gear 14 is movably contacted at the bottom of the outer frame plate 11. During use, the bearing 33 can reduce the friction of components and extend their service life. Under the action of the driving groove A111, the annular driving block A112 can move smoothly inside it. Under the action of the two handle rods 13, the staff can operate and control the device more easily, improve work efficiency, and use the large gear 14 as a transmission medium to drive other components.

[0037] like Figure 4 As shown, a group of tooth grooves 141 are opened on the inner surface wall of the large gear 14, and an annular driving block B142 is fixedly installed on the top of the large gear 14, and the outer wall of the annular driving block B142 is slidably embedded in the driving groove B112. Under the action of the tooth grooves 141 and the transmission device, the large gear 14 can be driven to rotate. At the same time, under the interaction between the annular driving block B142 and the driving groove B112, the large gear 14 can be limited when it rotates, so that the large gear 14 can rotate smoothly in the driving groove B112, thereby improving its working stability.

[0038] like Figure 4 As shown, the outer wall of the large gear 14 is meshed with two external gears 15, and the tops of the two external gears 15 are fixedly connected with driving motors A16. The outer walls of the two driving motors A16 are fixedly sleeved with motor plates 17, and one side of the outer walls of the two motor plates 17 are fixedly connected to the outer wall of the outer frame plate 11. Under the action of the synchronous starter, the two driving motors A16 can respectively maintain the same frequency and direction of rotation, and drive the external gears 15 fixedly connected to the bottom of the two driving motors A16 to rotate. By using the external gears 15 as a transmission medium, they can rotate with the large gear 14 and drive other components to work.

[0039] like Figure 4 As shown, the inner surface wall of the outer frame plate 11 is fixedly connected with a fixing plate 18, and a fixing groove A181 is opened at the top center of the fixing plate 18. The fixing groove A181 is used to install other components, and under the action of the fixing plate 18, the connection and fixation of the internal components of the sampling device can be completed.

[0040] like Figure 3 , Figure 4As shown, the sampling mechanism 2 includes an annular tube 21, and the outer wall of the annular tube 21 is fixedly inserted between the fixing groove A181 and the inner wall of the fixing groove B371, and an embedding groove 211 is opened inside the annular tube 21. During use, through the mutual cooperation of the annular tube 21 and the embedding groove 211, a limiting effect can be played on one of the components inside the sampling device, thereby improving the sampling effect.

[0041] like Figure 3-Figure 5 As shown, the inner surface wall of the annular tube 21 is movably in contact with the sampling tube 22, the outer surface wall of the sampling tube 22 is fixedly connected with a group of embedded blocks 221, and the outer surfaces of the group of embedded blocks 221 are movably embedded in the inner surface of the embedded groove 211, the inner surface wall of the sampling tube 22 is fixedly connected with an inner lining plate 23, and a spiral rod 24 is driven and rotated inside the inner lining plate 23, and an output port 241 is provided near the top of the outer surface wall of the sampling tube 22. Through the interaction between the embedded block 221 and the embedded groove 211, the sampling tube 22 can be limited, so that it can move up and down vertically inside the annular tube 21, so that the sampling tube 22 can be inserted into the ground, and at the same time, the soil sample can be subjected to a rotating extrusion force through the rotation of the spiral rod 24, so that the soil sample moves upward inside the sampling tube 22.

[0042] like Figure 5 As shown, the top of the spiral rod 24 is fixedly connected with a driving motor B25, and the outer wall of the driving motor B25 is fixedly sleeved with a motor frame 26, and the bottom of the motor frame 26 is fixedly installed with the top of the sampling tube 22. During use, the spiral rod 24 can be driven to rotate under the action of the driving motor B25. Through the rotation of the spiral rod 24 and the cooperation of the sampling tube 22, the soil sample can be transported, and under the action of the motor frame 26, the driving motor B25 can be fixed and limited to avoid its own rotation during use, thereby improving the transmission effect of the spiral rod 24.

[0043] The working principle of the whole mechanism is as follows: the equipment needs to be firmly installed before operation. First, the sampling device is moved to the designated position under the operation of the staff. Since the two sets of bearings 33 are firmly installed on the inner side of the outer frame plate 11 and the top of the bottom plate 37, respectively, the stability of the threaded rod 32 during rotation can be ensured. Subsequently, the two driving motors A16 rotate synchronously in the same direction under the coordination of the synchronous controller, and drive the outer gear 15 to rotate. Since the outer gear 15 fixedly installed at the output end of the driving motor A16 is tightly meshed with the large gear 14, the rotation of the outer gear 15 can drive the large gear 14 to rotate. At the same time, under the action of the inner gear 31, the threaded rod 32 can be driven to rotate, and under the action of the bearing 33, the threaded rod 32 can be reduced. The friction generated during rotation can avoid damage during long-term use and extend the service life of the threaded rod 32. Since the outer wall of the threaded rod 32 is connected to the inner wall of the linkage plate 34 by threads, when the threaded rod 32 rotates, it can drive the linkage plate 34 to move downward perpendicular to the ground, and drive the annular plate A35 to move downward, thereby adjusting the position of the annular plate A35 vertically relative to the ground. In this process, through the coordinated action of the adjustment component 36 and the telescopic component 38, the four adjustment plates 39 can be guided to expand to the surrounding areas, thereby increasing the contact area and friction between the sampling device and the ground, thereby greatly improving the stability of the sampling device during operation, and the four sets of fixing pins 391 will be inserted into the soil, which can further enhance The stability of the sampling device and the soil sampling process cleverly combine mechanical and electric drives: the annular tube 21 is firmly installed between the fixed groove A181 and the fixed groove B371, and the sampling tube 22 slides smoothly in the annular tube 21 through the embedded block 221. The operator controls the sampling tube 22 and its linkage components to move up and down. When the sampling tube 22 moves to a suitable position, under the operation of the staff, the rotating annular plate B41 and the annular drive block A42 move to a suitable position inside the drive groove A111, so that the input port 451 of the collection box 45 is aligned with the output port 241, and then the collection box 45 is moved to the middle on the inner surface wall of the annular seat 44, so that the input port 451 of the collection box 45 is inserted into the output port 241 set on the outer wall of the sampling tube 22. , and the driving motor B25 is started, an electromagnetic is generated inside the motor, and the rotor rotates inside the stator, thereby driving the screw rod 24 to rotate inside the sampling tube 22. After the screw rod 24 at the bottom makes rotational contact with the soil sample, the loose soil sample is subjected to a rotational squeezing force through the rotation of the screw rod 24, so that the soil sample is transported upward in the sampling tube 22. When the soil sample moves to the top inside the sampling tube 22, the screw rod 24 is driven to rotate continuously by the driving motor B25, so that the soil sample is subjected to a continuous squeezing force and reaches the inside of the collection box 45 through the output port 241 and the input port 451. When a collection box 45 completes soil sample collection, the driving motor B25 is controlled to stop working, so that the screw rod 24 stops rotating.Thus, the soil samples are no longer transported, and the staff then moves the collection box 45 movably embedded in the inner wall of the annular seat 44 outward, so that the input port 451 is taken out from the inside of the output port 241, and then the annular plate B41 and the annular drive block A42 are rotated to move inside the drive groove A111, so that the input port 451 of the next collection box 45 is inserted into the inside of the output port 241 through the above structure and method, and then the soil samples are sampled and collected under the interaction of the drive motor B25 and the spiral rod 24. When the soil sample sampling at the corresponding location is completed, the collection box 45 is taken out from the annular seat 44 under the operation of the staff, and the collection box 45 is placed in an external storage device to protect and store the soil samples, so as to avoid long-term exposure of the soil samples affecting the accuracy of subsequent test results. When the collection boxes 45 are all stored After that, the fixing pin 391 of the sampling device is taken out from the soil sample by the staff, and then the outer gear 15 is driven to rotate by the driving motor A16. At the same time, the threaded rod 32 can be driven to rotate by the cooperation of the large gear 14 and the inner gear 31, and the linkage plate 34 and the annular plate A35 can be driven to move upward perpendicular to the ground. At the same time, the adjustment plate 39 can be moved to the middle by the cooperation of the adjustment component 36 and the telescopic component 38, and the adjustment plate 39 and the fixing pin 391 can be stored to reduce the contact area between the sampling device and the ground and the overall volume of the sampling device, so that the staff can move or transport the sampling device more easily and conveniently, which greatly improves the practicality of the sampling device. When the sampling device is transported to the next sampling location, the next location can be sampled by the above operation and method.

[0044] The wiring diagram of the drive motor A16 and the drive motor B25 in the present invention is common knowledge in the field. Its working principle is that when direct current passes through the stator winding, a magnetic field is generated. This magnetic field interacts with the magnetic field on the rotor to generate a torque, causing the rotor to start rotating. As the rotor rotates, the magnetic field on the rotor will also change, which will cause an induced current to be generated in the stator winding. The magnetic field generated by this induced current interacts with the stator magnetic field to generate a torque to offset the rotation of the rotor, thereby maintaining the rotor in a balanced state during rotation. The model is selected according to actual use, so the control method and wiring layout of the drive motor A16 and the drive motor B25 will not be explained in detail.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sampling device for soil organic carbon detection, comprising an operating mechanism (1), a sampling mechanism (2) being fixedly mounted on the inner surface wall of the operating mechanism (1), and a collecting mechanism (4) being slidably embedded on the top of the operating mechanism (1), characterized in that: The bottom meshing transmission of the operating mechanism (1) is provided with a reinforcement mechanism (3); The reinforcement mechanism (3) comprises a group of internal gears (31), a threaded rod (32) is fixedly inserted inside the group of internal gears (31), two bearings (33) are fixedly sleeved on the outer wall of the group of threaded rods (32), a linkage plate (34) is threadedly connected to the outer wall of the group of threaded rods (32), an annular plate A (35) is fixedly installed between the outer walls of the group of linkage plates (34), four adjustment components (36) are fixedly installed on the outer wall of the annular plate A (35), a bottom plate (37) is fixedly installed between the bottoms of one of the two groups of bearings (33), a fixing groove B (371) is opened at the top center of the bottom plate (37), a group of telescopic components (38) is fixedly installed on the outer wall of the bottom plate (37), the telescopic ends of the group of telescopic components (38) are fixedly connected to the adjustment plates (39), and the bottoms of the group of adjustment plates (39) are fixedly connected to the fixing pins (391); The collecting mechanism (4) comprises an annular plate B (41), and an annular driving block A (42) is fixedly mounted on the bottom of the annular plate B (41).

2. A sampling device for soil organic carbon detection according to claim 1, characterized in that: A group of top plates (43) are fixedly connected to the top of the annular plate B (41), and an annular seat (44) is fixedly connected to the top of each group of top plates (43).

3. A sampling device for soil organic carbon detection according to claim 2, characterized in that: A collection box (45) is slidably embedded in the inner surface wall of a group of the annular seats (44), and an input port (451) is opened on one side of the outer wall of a group of the collection boxes (45).

4. A sampling device for soil organic carbon detection according to claim 3, characterized in that: The operating mechanism (1) comprises an outer frame plate (11), and one side of the outer wall of one group of two groups of bearings (33) is fixedly connected to the inner surface wall of the outer frame plate (11), a driving groove A (111) is provided at the top of the outer frame plate (11), and the outer surface wall of the annular driving block A (42) is slidably embedded in the driving groove A (111), a driving groove B (112) is provided at the bottom of the outer frame plate (11), two handle bars (13) are fixedly connected to the outer surface wall of the outer frame plate (11), and a large gear (14) is movably contacted at the bottom of the outer frame plate (11).

5. A sampling device for soil organic carbon detection according to claim 4, characterized in that: The inner surface wall of the large gear (14) is provided with a group of tooth grooves (141), and an annular driving block B (142) is fixedly installed on the top of the large gear (14), and the outer surface wall of the annular driving block B (142) is slidably embedded in the driving groove B (112).

6. A sampling device for soil organic carbon detection according to claim 5, characterized in that: The outer wall of the large gear (14) is meshed with two outer gears (15), the tops of the two outer gears (15) are fixedly connected to a driving motor A (16), the outer walls of the two driving motors A (16) are fixedly sleeved with motor plates (17), and one side of the outer walls of the two motor plates (17) is fixedly connected to the outer wall of the outer frame plate (11).

7. A sampling device for soil organic carbon detection according to claim 6, characterized in that: A fixing plate (18) is fixedly connected to the inner surface wall of the outer frame plate (11), and a fixing groove A (181) is provided at the top center of the fixing plate (18).

8. A sampling device for soil organic carbon detection according to claim 7, characterized in that: The sampling mechanism (2) comprises an annular tube (21), and the outer wall of the annular tube (21) is fixedly inserted between the fixing groove A (181) and the inner wall of the fixing groove B (371), and an embedding groove (211) is provided inside the annular tube (21).

9. A sampling device for soil organic carbon detection according to claim 8, characterized in that: The inner surface wall of the annular tube (21) is in movable contact with a sampling tube (22); the outer surface wall of the sampling tube (22) is fixedly connected with a group of embedded blocks (221), and the outer surfaces of the group of embedded blocks (221) are all movably embedded in the interior of the embedded groove (211); the inner surface wall of the sampling tube (22) is fixedly connected with an inner lining plate (23); a spiral rod (24) is driven and rotated inside the inner lining plate (23); and an output port (241) is provided on the outer surface wall of the sampling tube (22) near the top.

10. A sampling device for soil organic carbon detection according to claim 9, characterized in that: The top of the spiral rod (24) is fixedly connected to a rotation motor B (25), the outer wall of the rotation motor B (25) is fixedly sleeved with a motor frame (26), and the bottom of the motor frame (26) is fixedly installed with the top of the sampling tube (22).

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