Soil carbon emission detection device and detection method for land carbon emission measurement

Abstract

The present invention discloses a soil carbon emission detection device and detection method for measuring land carbon emission. The present invention relates to the field of detection sampling technology. Due to the gravity of the soil itself, the soil cannot be lifted out simultaneously with the device during the extraction process. After the soil is subsequently dug out, the soil stratification becomes chaotic, resulting in inability to detect. The soil carbon emission detection device for measuring land carbon emission uses a sampling arc plate. In the process of the sampling arc plate continuously penetrating into the soil, the inner diameter change of the inner wall of the circular cylinder surrounded by the sampling arc plate cooperates with the inner ring groove at the bottom of the inner wall of the sampling arc plate. In the process of deepening, the upper layer of soil is squeezed inwards in the process of continuous deepening. At the same time, the bottom increases the friction with the bottom of the sampled soil through the inner ring groove. In the process of lifting, the soil cannot be lifted out simultaneously with the device, ensuring that the soil is still clearly layered at different depths after extraction, avoiding soil stratification chaos, resulting in inability to detect.

Description

Technical Field

[0001] The present invention relates to the technical field of detection and sampling, and in particular to a soil carbon emission detection device and a detection method for measuring land carbon emissions. Background Art

[0002] Currently, soil carbon emission detection is an important task for assessing the amount of greenhouse gases such as carbon dioxide released by soil into the atmosphere. Soil is one of the largest organic carbon reservoirs in terrestrial ecosystems, and its carbon emissions have a significant impact on global climate change. Accurately detecting soil carbon emissions helps to understand the soil carbon cycle process and assess the carbon balance of ecosystems, thereby providing key data support for formulating strategies to respond to climate change, rationally managing land use, and carrying out ecological and environmental protection. Soil carbon emission detection sampling is a key link in obtaining accurate detection data;

[0003] During the sampling process, due to the gravity of the soil itself, the soil cannot be taken out at the same time as the equipment. After the soil is dug out, the soil stratification becomes chaotic, making it impossible to detect. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a soil carbon emission detection device for measuring land carbon emissions, comprising:

[0005] A handrail, a motor is fixedly mounted on the top of the handrail, an output end of the motor passes through the handrail and extends to the bottom thereof, and a coupling is mounted on the output end of the motor;

[0006] A buffer mechanism, which is used for protection when obstructed, and the top end of the buffer mechanism is connected to the output end of the motor through a coupling;

[0007] A clamping mechanism, which is used for draining water during soil sampling and is fixedly mounted on the bottom of the buffer mechanism;

[0008] A sampling mechanism, wherein the sampling mechanism has a soil sampling space therein and is installed inside the clamping mechanism;

[0009] Wherein, the sampling mechanism includes a sampling arc plate, the number of the sampling arc plates is three and they form a cylindrical barrel, the top of the outer side of the sampling arc plate is provided with a thread, and the outer side of the sampling arc plate is welded with an arc ring, the arc ring is located below the thread, and the inner wall of the cylindrical barrel surrounded by the sampling arc plate is a conical surface with an inner diameter gradually increasing from top to bottom, and the bottom of the inner wall of the sampling arc plate is evenly provided with an inner ring groove. Through the sampling arc plate, in the process of the sampling arc plate continuously penetrating into the soil, the inner diameter change of the inner wall of the circular barrel surrounded by the sampling arc plate is matched with the inner ring groove at the bottom of the inner wall of the sampling arc plate. In the process of deepening, the upper soil is squeezed inwardly in the process of continuous deepening, and at the same time, the bottom increases the friction with the bottom of the sampled soil through the inner ring groove. In the proposed process During the sampling process, in order to prevent the soil from being unable to be lifted out at the same time as the equipment, to ensure that the soil is still clearly layered at different depths after being taken out, to avoid soil stratification chaos, which leads to the inability to detect, the bottom end of the sampling arc plate is fixedly installed with a toothed ring, and the bottom end of the toothed ring is provided with knife teeth. The bottom of the outer side of the sampling arc plate is provided with a ring groove, and a fixing ring is fixedly installed at the ring groove of the sampling arc plate. A spiral knife plate is welded on the outer side of the fixing ring. The threaded knife plate cooperates with the toothed ring, so that the toothed ring contacts the soil first and performs ring cutting, so that the soil after ring cutting enters the interior of the sampling arc plate, and then the spiral knife plate crushes the soil on the outside, reducing the resistance during the lifting process and avoiding the rotation of the spiral knife plate affecting the stratification of the sampled soil sample. The outer side of the sampling arc plate is evenly provided with drainage holes.

[0010] Preferably, the clamping mechanism includes a threaded barrel, the inner wall of the threaded barrel is provided with a thread, and the inner wall of the threaded barrel is threadedly connected to the top of the outer side of the cylindrical barrel surrounded by the sampling arc plate, the bottom end of the threaded barrel is tightly fitted with the top of the arc ring, the top of the threaded barrel is fixedly installed with a slot barrel, the outer side of the slot barrel is evenly provided with a slot, the inner side of the slot barrel is slidably installed with a clamping ring, the outer side of the clamping ring is evenly installed with a clamping block, the clamping ring is clamped with the slot of the slot barrel through the clamping block, and a pad is fixedly installed at the center position of the bottom of the clamping ring, which cooperates with the threaded barrel through the pad. In the process of sampling deep into the soil, when the soil contacts the pad, the soil is blocked and stopped from going deeper, so as to avoid excessive penetration into the soil. At the same time, the pad and the threaded barrel are The gap between provides space for draining out water in the soil, so that water in the soil is drained out along the water guide groove and the missing groove. The pad is a conical block with an outer diameter that decreases uniformly from top to bottom, and there is a gap between the outer side of the pad and the inner wall of the threaded barrel. The top of the threaded barrel is a conical surface that bulges upward at the center position and is evenly provided with water guide grooves. The bottom of the outer side of the slot barrel is evenly provided with missing grooves. A water retaining cover is fixedly installed on the outer side of the slot barrel, and the water retaining cover cooperates with the missing groove of the slot barrel. When the barrel rotates deeper and drains out water in the soil, the water drained out through the missing groove is blocked by the water retaining cover to avoid directly draining out water in the soil, resulting in water splashing everywhere under the action of the rotational force. The water retaining cover is an arc-shaped cover, and there is a gap between the bottom end of the water retaining cover and the outer side of the threaded barrel.

[0011] Preferably, the buffer mechanism includes a fixed cover, the bottom of the fixed cover is fixedly connected to the top of the clamping ring, and the outer side of the fixed cover is evenly provided with sliding grooves, the bottom of the inner wall of the fixed cover is fixedly installed with a pad, the center position of the top of the pad is rotatably installed with a bottom cover, the top of the pad is fixedly installed with a bottom ring, the inner wall of the fixed cover is slidably installed with an inner sliding plate, the bottom of the inner sliding plate is fixedly installed with a rubber ring, the rubber ring is located just above the bottom ring, through the cooperation between the rubber ring and the bottom ring, after encountering resistance, the inspector increases the downward pressure to increase the contraction of the spring, the bottom ring contacts the rubber ring, and the rubber ring is under contact pressure. The cam is fixed on the outer side of the inner sliding plate, and the ...

[0012] A soil carbon emission detection device detection method for measuring land carbon emissions comprises the following steps:

[0013] S1. Location selection: Investigate the land to be tested and select representative sampling locations within the land to be tested;

[0014] S2. Multi-point sampling: select multiple representative sampling locations within the land area to be tested and collect soil samples at the sampling locations;

[0015] S3. Sample preservation: soil samples from multiple locations are collected and the soil from each location is preserved separately to avoid contamination between soil samples;

[0016] S4. Detection and analysis: Conduct component analysis on the collected soil samples, detect the soil carbon emissions of each sample, and finally take the average value of all samples to complete the carbon emission detection.

[0017] The present invention provides a soil carbon emission detection device for measuring land carbon emissions. It has the following beneficial effects:

[0018] 1. This soil carbon emission detection equipment for measuring land carbon emissions uses a sampling arc plate. As the sampling arc plate continuously penetrates into the soil, the inner diameter of the inner wall of the circular cylinder surrounded by the sampling arc plate changes and cooperates with the inner ring groove at the bottom of the inner wall of the sampling arc plate. During the deepening process, the upper soil is squeezed inward, and at the same time, the bottom increases the friction with the bottom of the sampled soil through the inner ring groove. During the lifting process, the soil is prevented from being lifted out at the same time as the equipment, ensuring that the soil is still clearly layered at different depths when it is taken out, avoiding chaotic soil stratification and resulting in undetectable conditions.

[0019] 2. This soil carbon emission detection equipment for measuring land carbon emissions cooperates with a threaded blade and a toothed ring, so that the toothed ring contacts the soil first and performs ring cutting, so that the soil after ring cutting enters the interior of the sampling arc plate, and then the spiral blade crushes the soil on the outside, reducing the resistance during the extraction process and preventing the rotation of the spiral blade from affecting the stratification of the sampled soil.

[0020] 3. This soil carbon emission detection equipment for measuring land carbon emissions cooperates with a gasket and a threaded barrel. During the process of sampling deep into the soil, when the soil contacts the gasket, the soil is blocked and further penetration is stopped to avoid excessive penetration into the soil. At the same time, the gap between the gasket and the threaded barrel provides space for the water in the soil to be discharged, so that the water in the soil is discharged along the water guide groove and the gap.

[0021] 4. This soil carbon emission detection equipment for measuring land carbon emissions cooperates with the groove of the slot cylinder through a water retaining cover. When it rotates deep and drains water from the soil, the water drained through the groove is blocked by the water retaining cover, avoiding direct drainage of water from the soil, which causes water to splash everywhere under the action of the rotational force.

[0022] 5. This soil carbon emission detection equipment for measuring land carbon emissions, through the cooperation of the rubber ring and the bottom ring, after encountering resistance, the tester increases the downward pressure, causing the spring to contract more, and the bottom ring to contact the rubber ring. The rubber ring deforms under the contact pressure, generating friction with the bottom ring, and cooperates with the contact between the slider and the fixed cover to drive the fixed cover to rotate, reducing the wear between the fixed cover and the slider, and avoiding the obstruction of buffer sliding due to the formation of grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the external structure of a soil carbon emission detection device for measuring land carbon emissions according to the present invention;

[0024] Figure 2 This is a partial structural diagram of a soil carbon emission detection device for measuring land carbon emissions according to the present invention;

[0025] Figure 3 It is a schematic structural diagram of the sampling mechanism of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the sampling mechanism of the present invention;

[0027] Figure 5 This is a schematic structural diagram of the clamping mechanism of the present invention;

[0028] Figure 6 This is a structural anatomical diagram of the clamping mechanism of the present invention;

[0029] Figure 7 This is a partial structural dissected side view of the clamping mechanism of the present invention;

[0030] Figure 8 This is a schematic structural diagram of the buffer mechanism of the present invention;

[0031] Figure 9 This is a structural anatomical diagram of the buffer mechanism of the present invention;

[0032] Figure 10 Schematic diagram of the detection method of the present invention.

[0033] In the figure: 1. Clamping mechanism; 2. Sampling mechanism; 3. Buffer mechanism; 4. Coupling; 5. Handrail; 6. Motor; 11. Threaded barrel; 12. Water shield; 13. Snap ring; 14. Slot barrel; 15. Pad; 16. Block; 17. Slot; 18. Water guide trough; 21. Sampling arc plate; 22. Arc ring; 23. Drain hole; 24. Fixed ring; 25. Gear ring; 26. Inner ring groove; 27. Spiral blade; 301. Fixed cover; 302. Sliding block; 303. Connecting shaft; 304. Inner sliding plate; 305. Rubber ring; 306. Top cover; 307. Spring; 308. Bottom cover; 309. Bottom ring; 310. Pad. DETAILED DESCRIPTION

[0034] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described to better illustrate the principles of the invention and its practical application, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for specific applications.

[0035] The first embodiment, as Figures 1 to 4 As shown, the present invention provides a technical solution: a soil carbon emission detection device for measuring land carbon emissions, comprising:

[0036] A handrail 5, a motor 6 is fixedly mounted on the top of the handrail 5, an output end of the motor 6 passes through the handrail 5 and extends to the bottom thereof, and a coupling 4 is mounted on the output end of the motor 6;

[0037] A buffer mechanism 3 is used for protection when obstructed, and the top end of the buffer mechanism 3 is connected to the output end of the motor 6 through a coupling 4;

[0038] A clamping mechanism 1, which is used for draining water during soil sampling and is fixedly mounted on the bottom of the buffer mechanism 3;

[0039] A sampling mechanism 2, wherein the sampling mechanism 2 has a soil sampling space therein and is installed inside the clamping mechanism 1;

[0040] The sampling mechanism 2 includes a sampling arc plate 21, which is three in number and forms a cylindrical body. The top of the outer side of the sampling arc plate 21 is provided with a thread, and an arc ring 22 is welded on the outer side of the sampling arc plate 21. The arc ring 22 is located below the thread, and the inner wall of the cylindrical body surrounded by the sampling arc plate 21 is a conical surface with an inner diameter gradually increasing from top to bottom. The bottom of the inner wall of the sampling arc plate 21 is evenly provided with an inner ring groove 26, and the bottom end of the sampling arc plate 21 is fixedly installed with a gear ring 25. In the process of the sampling arc plate 21 continuously penetrating into the soil, the inner diameter change of the inner wall of the circular cylinder surrounded by the sampling arc plate 21 cooperates with the inner ring groove 26 at the bottom of the inner wall of the sampling arc plate 21. In the process of deepening, the upper soil is squeezed inwardly in the process of continuous deepening. At the same time, the bottom increases the friction with the bottom of the sampled soil through the inner ring groove 26. In the process of lifting, it is prevented that the soil cannot be lifted out at the same time as the equipment. The bottom end is provided with knife teeth, and the bottom of the outer side of the sampling arc plate 21 is provided with an annular groove, and a fixing ring 24 is fixedly installed at the annular groove of the sampling arc plate 21, and a spiral knife plate 27 is welded on the outer side of the fixing ring 24. Before sampling, the three sampling arc plates 21 are surrounded by a circular cylinder, and the circular cylinder surrounded by the sampling arc plates 21 is installed inside the threaded cylinder 11 through the threads on the top of the outer side of the sampling arc plates 21. During the rotation and downward pressure process, the rotating sampling arc plate 21 drives the gear ring 25 at the bottom end to first contact the soil surface, and drills the soil through the gear ring 25 and penetrates into the soil. Then, the spiral knife plate 27 on the outer side of the fixing ring 24 drives the soil at the contact position of the outer side of the sampling arc plate 21 in the process of penetrating into the soil, and breaks the soil contacting the sampling arc plate 21 through the spiral knife plate 27, thereby reducing the resistance when the sampling contacts and raises the sampling mechanism 2. Drainage holes 23 are evenly provided on the outer side of the sampling arc plate 21.

[0041] The second embodiment, based on the first embodiment, see Figures 5 to 7 As shown, the clamping mechanism 1 includes a threaded barrel 11, the inner wall of the threaded barrel 11 is provided with a thread, and the inner wall of the threaded barrel 11 is threadedly connected to the top of the outer side of the cylindrical barrel surrounded by the sampling arc plate 21, the bottom end of the threaded barrel 11 is tightly fitted with the top of the arc ring 22, and the top of the threaded barrel 11 is fixedly installed with a card slot barrel 14, which is fixedly connected to the fixed cover 301 through a clamping ring 13, and the clamping ring 13 is clamped with the card slot 17 of the card slot barrel 14 through the outer clamping block 16, and is fixed in the fixed position. When the fixed cover 301 rotates, the clamping ring 13 uses the clamping block 16 to drive the clamping groove cylinder 14 to rotate, so that the clamping groove cylinder 14 and the threaded cylinder 11 rotate, and the threaded connection between the threaded cylinder 11 and the sampling mechanism 2 drives the sampling mechanism 2 to drill the soil. The outer side of the clamping groove cylinder 14 is evenly provided with clamping grooves 17, and the inner side of the clamping groove cylinder 14 is slidably installed with a clamping ring 13, and the outer side of the clamping ring 13 is evenly installed with clamping blocks 16. The clamping ring 13 is clamped with the clamping groove 17 of the clamping groove cylinder 14 through the clamping block 16.

[0042] A pad 15 is fixedly installed at the center position of the bottom of the snap ring 13. The pad 15 is a conical block with an outer diameter that decreases evenly from top to bottom, and there is a gap between the outer side of the pad 15 and the inner wall of the threaded tube 11. The top of the threaded tube 11 is a conical surface that bulges upward at the center position and is evenly provided with a water guide groove 18. The bottom of the outer side of the card slot tube 14 is evenly provided with a notch. A water shield 12 is fixedly installed on the outer side of the card slot tube 14. In the process of drilling the soil by the sampling mechanism 2, it continues to penetrate into the soil. When the water content in the soil is high, the water is taken out by the sampling mechanism 2 during drilling. The water rises inside the sampling mechanism 2 and rises through the gap between the pad 15 and the inner wall of the threaded barrel 11, so that the water is discharged along the water guide groove 18 at the top of the threaded barrel 11 and the notch of the slot barrel 14. At the same time, during the discharge process, the discharged water is blocked by the water shield 12, so that it flows downward during the rotation and is discharged through the gap. When the sampling is completed, the contact block 16 and the slot barrel 14 are clamped, and the threaded barrel 11 and the sampling mechanism 2 are taken out at the same time. The water shield 12 is an arc-shaped shield, and there is a gap between the bottom end of the water shield 12 and the outside of the threaded barrel 11.

[0043] The third embodiment, based on the first and second embodiments, see Figures 8 to 10 As shown, the buffer mechanism 3 includes a fixed cover 301, the bottom of the fixed cover 301 is fixedly connected to the top of the snap ring 13, and the outer side of the fixed cover 301 is evenly provided with sliding grooves, the bottom of the inner wall of the fixed cover 301 is fixedly installed with a pad 310, and the center position of the top of the pad 310 is rotatably installed with a bottom cover 308. The output end of the motor 6 drives the connecting shaft 303 to rotate, so that the connecting shaft 303 drives the inner sliding plate 304, and the slider 302 on the outer side of the inner sliding plate 304 is used to rotate with the fixed cover 301. The sliding adaptation of the sliding groove of the cover 301 causes the inner sliding disc 304 to rotate, thereby driving the fixed cover 301 to rotate. Through the fixed connection between the fixed cover 301 and the clamping mechanism 1, the sampling mechanism 2 is driven to rotate and drill the soil through the clamping mechanism 1 during rotation. The top of the pad 310 is fixedly installed with a bottom ring 309, and the inner sliding disc 304 is slidably installed on the inner wall of the fixed cover 301. The bottom of the inner sliding disc 304 is fixedly installed with a rubber ring 305, and the rubber ring 305 is located directly above the bottom ring 309.

[0044] The outer side of the inner sliding disc 304 is fixedly installed with a slider 302, and the slider 302 is evenly installed along the center position of the inner sliding disc 304. The inner sliding disc 304 slides and adapts to the slide groove of the fixed cover 301 through the slider 302. The center position of the top of the inner sliding disc 304 is fixedly installed with a connecting shaft 303. The top of the connecting shaft 303 is connected to the output end of the motor 6 through the coupling 4. When drilling, the inspection personnel press down through the handrail 5, and the pressure is transmitted to the inner sliding disc 304 through the output end of the motor 6 and the connecting shaft 303, so that the inner sliding disc 304 compresses the spring 307 through the top cover 306, causing the spring 307 to deform. The spring 307 transmits the pressure to the bottom cover 308 and the pad 310, and then transmits the pressure to the clamping mechanism 1 and the sampling mechanism through the fixed cover 301, which becomes the pressure for downward drilling. When encountering an obstacle, the inspector increases the downward pressure to make the rubber ring 305 contact the bottom ring 309, causing the contact deformation between the rubber ring 305 and the bottom ring 309, and at the same time generating friction, cooperating with the contact between the slider 302 and the sliding groove of the fixed cover 301, driving the fixed cover 301 to rotate, and the top cover 306 is rotatably installed at the center position of the bottom of the inner sliding disk 304, and the spring 307 is fixedly installed between the top cover 306 and the bottom cover 308.

[0045] A soil carbon emission detection device detection method for measuring land carbon emissions comprises the following steps:

[0046] S1. Location selection: Investigate the land to be tested and select representative sampling locations within the land to be tested;

[0047] S2. Multi-point sampling: select multiple representative sampling locations within the land area to be tested and collect soil samples at the sampling locations;

[0048] S3. Sample preservation: soil samples from multiple locations are collected and the soil from each location is preserved separately to avoid contamination between soil samples;

[0049] S4. Detection and analysis: Conduct component analysis on the collected soil samples, detect the soil carbon emissions of each sample, and finally take the average value of all samples to complete the carbon emission detection.

[0050] During use, the inspector determines a representative sampling position, and then the inspector starts the motor 6 by holding the hand support 5, so that the motor 6 drives the buffer mechanism 3, and the buffer mechanism 3 drives the sampling mechanism 2 to rotate through the clamping mechanism 1. At the same time, the inspector presses down through the hand support 5 to make the sampling mechanism 2 contact the soil. Through the downward pressure of the inspector and the rotation of the sampling mechanism 2, the soil is drilled downward so that the soil to be sampled enters the interior of the sampling mechanism 2. After drilling is completed, the equipment and the soil sample are lifted together, and then the sampling mechanism 2 and the soil are separated from the clamping mechanism 1, and finally the soil sample is taken out from the sampling mechanism 2.

[0051] In the buffer mechanism 3, the output end of the motor 6 drives the connecting shaft 303 to rotate, so that the connecting shaft 303 drives the inner sliding disc 304. The slider 302 on the outer side of the inner sliding disc 304 is adapted to the sliding groove of the fixed cover 301. When the inner sliding disc 304 rotates, the fixed cover 301 is driven to rotate. The fixed cover 301 is fixedly connected to the clamping mechanism 1. When rotating, the sampling mechanism 2 is driven to rotate through the clamping mechanism 1 to drill the soil. At the same time, when drilling, the inspection personnel press down through the handrail 5, and the pressure is transmitted to the inner sliding disc 304 through the output end of the motor 6 and the connecting shaft 303. 4. The inner sliding plate 304 compresses the spring 307 through the top cover 306, causing the spring 307 to deform, and the pressure is transmitted to the bottom cover 308 and the pad 310 through the spring 307. Then, the pressure is transmitted to the clamping mechanism 1 and the sampling mechanism through the fixed cover 301, which becomes the pressure for drilling downward. When encountering an obstacle, the inspection personnel increase the downward pressure to make the rubber ring 305 contact the bottom ring 309, causing the contact deformation between the rubber ring 305 and the bottom ring 309, and at the same time generating friction, cooperating with the contact between the slider 302 and the sliding groove of the fixed cover 301, driving the fixed cover 301 to rotate.

[0052] In the clamping mechanism 1, the clamping ring 13 is fixedly connected to the fixed cover 301, and the clamping ring 13 is clamped with the clamping groove 17 of the clamping groove tube 14 through the outer clamping block 16. When the fixed cover 301 rotates, the clamping groove tube 14 is driven to rotate by the clamping ring 13 using the clamping block 16, so that the clamping groove tube 14 and the threaded tube 11 are rotated, and the threaded tube 11 is connected to the sampling mechanism 2 through the thread, driving the sampling mechanism 2 to drill the soil. At the same time, in the process of drilling the soil, the sampling mechanism 2 continues to penetrate into the soil. When When the water content in the soil is high, the water will rise from the inside of the sampling mechanism 2 during drilling, and rise through the gap between the pad 15 and the inner wall of the threaded barrel 11, so that the water is discharged along the water guide groove 18 at the top of the threaded barrel 11 and the notch of the card slot barrel 14. At the same time, during the discharge process, the discharged water is blocked by the water shield 12, so that it flows downward during the rotation and is discharged through the gap. When the sampling is completed, the contact block 16 is engaged with the card slot barrel 14, and the threaded barrel 11 and the sampling mechanism 2 are taken out at the same time.

[0053] In the sampling mechanism 2, before sampling, the three sampling arc plates 21 are surrounded by a circular cylinder, and the circular cylinder surrounded by the sampling arc plates 21 is installed inside the threaded cylinder 11 through the threads on the top of the outer side of the sampling arc plates 21. During the rotation and downward pressure process, the rotating sampling arc plates 21 drive the gear ring 25 at the bottom to first contact the soil surface, and the soil is drilled through the gear ring 25 to penetrate into the soil. Then, the spiral blade plate 27 on the outer side of the fixed ring 24 drives the soil at the contact position on the outer side of the sampling arc plate 21 in the process of penetrating into the soil. The spiral blade 27 breaks up the soil that contacts the sampling arc plate 21, reducing the resistance when the sampling contacts the sampling mechanism 2. At the same time, as the sampling arc plate 21 continues to penetrate into the soil, the inner diameter of the inner wall of the circular cylinder surrounded by the sampling arc plate 21 changes and cooperates with the inner ring groove 26 at the bottom of the inner wall of the sampling arc plate 21. In the process of deepening, the upper soil is squeezed inward in the process of continuous deepening. At the same time, the bottom increases the friction with the bottom of the sampling soil through the inner ring groove 26, and in the process of lifting, it is prevented that the soil cannot be lifted out at the same time as the equipment.

[0054] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A soil carbon emission detection device for measuring land carbon emission, characterized in that: include: A hand support frame (5), wherein a motor (6) is fixedly mounted on the top of the hand support frame (5), an output end of the motor (6) passes through the hand support frame (5) and extends to the bottom thereof, and a coupling (4) is mounted on the output end of the motor (6); A buffer mechanism (3), the buffer mechanism (3) being used for protection when obstructed, and the top end of the buffer mechanism (3) being connected to the output end of the motor (6) via a coupling (4); A clamping mechanism (1), the clamping mechanism (1) being used for draining water when soil sampling is performed, and the clamping mechanism (1) being fixedly mounted on the bottom of the buffer mechanism (3); A sampling mechanism (2), wherein a soil sampling space is provided inside the sampling mechanism (2), and the sampling mechanism (2) is installed inside the clamping mechanism (1); The sampling mechanism (2) comprises a sampling arc plate (21), wherein the number of the sampling arc plates (21) is three and they form a cylindrical body, a thread is arranged on the top of the outer side of the sampling arc plate (21), and an arc ring (22) is welded on the outer side of the sampling arc plate (21), and the arc ring (22) is located below the thread, and the inner wall of the cylindrical body formed by the sampling arc plates (21) is a conical surface with an inner diameter gradually increasing from top to bottom, and an inner ring groove (26) is evenly arranged on the bottom of the inner wall of the sampling arc plate (21); The buffer mechanism (3) comprises a fixed cover (301), the bottom of the fixed cover (301) is fixedly connected to the top of the clamping ring (13), and the outer side of the fixed cover (301) is evenly provided with sliding grooves, a pad (310) is fixedly installed at the bottom of the inner wall of the fixed cover (301), a bottom cover (308) is rotatably installed at the center position of the top of the pad (310), an inner sliding plate (304) is slidably installed on the inner wall of the fixed cover (301), and a sliding plate (304) is fixedly installed on the outer side of the inner sliding plate (304). A slider (302), the inner sliding plate (304) is slidably adapted to the sliding groove of the fixed cover (301) through the slider (302), a connecting shaft (303) is fixedly installed at the center position of the top of the inner sliding plate (304), the top end of the connecting shaft (303) is connected to the output end of the motor (6) through a coupling (4), a top cover (306) is rotatably installed at the center position of the bottom of the inner sliding plate (304), and a spring (307) is fixedly installed between the top cover (306) and the bottom cover (308).

2. The soil carbon emission detection device for measuring land carbon emission according to claim 1, characterized in that: A toothed ring (25) is fixedly mounted at the bottom end of the sampling arc plate (21), and knife teeth are arranged at the bottom end of the toothed ring (25). An annular groove is provided at the bottom of the outer side of the sampling arc plate (21), and a fixing ring (24) is fixedly mounted at the annular groove of the sampling arc plate (21). A spiral knife plate (27) is welded to the outer side of the fixing ring (24). Drainage holes (23) are evenly provided on the outer side of the sampling arc plate (21).

3. The soil carbon emission detection device for measuring land carbon emission according to claim 1, characterized in that: The clamping mechanism (1) comprises a threaded barrel (11), the inner wall of the threaded barrel (11) being provided with threads, and the inner wall of the threaded barrel (11) being threadedly connected to the top of the outer side of a cylindrical barrel body surrounded by a sampling arc plate (21), and the bottom end of the threaded barrel (11) is tightly fitted to the top of the arc ring (22).

4. The soil carbon emission detection device for measuring land carbon emission according to claim 3 is characterized in that: A slot cylinder (14) is fixedly mounted on the top of the threaded cylinder (11); slots (17) are evenly arranged on the outside of the slot cylinder (14); a clamping ring (13) is slidably mounted inside the slot cylinder (14); clamping blocks (16) are evenly mounted on the outside of the clamping ring (13); and the clamping ring (13) is clamped with the slot (17) of the slot cylinder (14) via the clamping block (16).

5. The soil carbon emission detection device for measuring land carbon emission according to claim 4, characterized in that: A cushion block (15) is fixedly mounted at the center position of the bottom of the clamping ring (13); the cushion block (15) is a conical block with an outer diameter that decreases evenly from top to bottom, and there is a gap between the outer side of the cushion block (15) and the inner wall of the threaded barrel (11); the top of the threaded barrel (11) is a conical surface that bulges upward at the center position and is evenly provided with water guide grooves (18); the bottom of the outer side of the slot barrel (14) is evenly provided with notches; a water retaining cover (12) is fixedly mounted on the outer side of the slot barrel (14); the water retaining cover (12) is an arc-shaped cover, and there is a gap between the bottom end of the water retaining cover (12) and the outer side of the threaded barrel (11).

6. The soil carbon emission detection device for measuring land carbon emission according to claim 1, characterized in that: A bottom ring (309) is fixedly mounted on the top of the pad (310), and a rubber ring (305) is fixedly mounted on the bottom of the inner sliding plate (304), wherein the rubber ring (305) is located directly above the bottom ring (309).

7. The soil carbon emission detection device for measuring land carbon emission according to claim 6, characterized in that: The sliding blocks (302) are evenly installed along the center of the inner sliding plate (304).

8. A method for detecting soil carbon emission using a soil carbon emission detection device according to any one of claims 1 to 7, characterized in that: It consists of the following steps: S1. Location selection: Investigate the land to be tested and select representative sampling locations within the land to be tested; S2. Multi-point sampling: select multiple representative sampling locations within the land area to be tested, and collect soil samples at the sampling locations; S3. Sample preservation: collect soil samples from multiple locations and preserve the soil from each location separately to avoid mixing between soil samples; S4. Detection and analysis: Conduct component analysis on the collected soil samples, detect the soil carbon emissions of each sample, and finally take the average value of all samples to complete the carbon emission detection.

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