A soil sampling and detection system for forest soil carbon pool

Abstract

The invention discloses a soil sampling and detection system for a forest soil carbon pool, which belongs to the technical field of soil sampling and detection, and comprises a base, a support column is fixedly installed on the upper surface of the base, a fixing plate is fixedly installed on one end of the support column, a hydraulic rod is fixedly installed on the upper surface of the fixing plate, and a shaking assembly is arranged on the lower surface of the fixing plate; in the invention, by arranging the shaking assembly, when the worm rotates, the worm wheel will drive the rotating rod to rotate, and at this time the rotating rod will drive the rotating disk to rotate, so that the connecting rod drives the limiting ring to move back and forth under the support of the supporting frame through the mounting clamp, and after the automatic sampler passes through the limiting ring, the automatic sampler will shake back and forth in the stroke groove under the action of the connecting spring, and the shaking will occur in the process of the sampler going deep into the soil, so that the soil around the sampler can be moved outward, thereby increasing the activity range of the sampler, reducing the difficulty of the sampler going deep into the soil, and thus improving the sampling efficiency of the sampler.

Description

Technical Field

[0001] The invention belongs to the technical field of soil sampling and detection, and in particular relates to a soil sampling and detection system for a forest soil carbon pool. Background Art

[0002] The forest soil carbon pool is one of the most important carbon storage pools in the Earth's ecosystem. Forests absorb carbon dioxide from the atmosphere through photosynthesis and convert it into organic matter, which enters the soil after the plants die, forming soil organic carbon. In addition, forest soil also converts organic matter into more stable humus through the decomposition of microorganisms, further increasing the storage of soil carbon.

[0003] The size of the forest soil carbon pool is affected by many factors, including climate, soil type, vegetation type, and land use. Generally speaking, cold and humid climate conditions are conducive to the accumulation of soil carbon, while warm and dry climates may lead to the loss of soil carbon. In addition, different types of soil and vegetation will also affect the soil carbon storage capacity. For example, peat soils and swamps usually have higher soil carbon content, while sandy soils have lower soil carbon content.

[0004] The forest soil carbon pool plays a key role in the global carbon cycle. It not only slows down the increase of carbon dioxide in the atmosphere and reduces the risk of global warming, but also provides important ecological services to the forest ecosystem, such as maintaining biodiversity, maintaining water and soil balance, and purifying the air. However, due to the interference of human activities, such as deforestation, land reclamation and urbanization, the forest soil carbon pool is facing serious threats. Therefore, protecting and restoring forest ecosystems and strengthening soil carbon management are one of the important measures to address global climate change.

[0005] Soil sampling and testing is of vital importance to the study of forest soil carbon pools. It provides a scientific basis for evaluating carbon budgets, understanding carbon cycle processes, and predicting future changes. Forest soil is generally composed of minerals from weathered rocks, organic matter from the decomposition of plant and animal and microbial residues, soil organisms, water, air, oxidized humus, etc. In order to study the soil at different depths, sampling and testing devices are used to sample and test the soil.

[0006] A Chinese patent discloses a soil detection sampler (CN118067436A), which includes a main cylinder, a cone head disposed at the end of the main cylinder, a soil sampling rod fixedly connected to the cone head disposed in the middle of cavity one, a plurality of support rods circumferentially distributed and hinged on the soil sampling rod, a scraper plate is fixed on one end of the support rod away from the soil sampling rod, an elastic telescopic rod is also hinged on the support rod, and the other end of the elastic telescopic rod is hinged on the cavity wall of cavity two; an adjustable angle driving assembly is used to drive the rotation of the whole formed by the main cylinder and the cone head, and to adjust the angle between the main cylinder and the holding assembly; a moving control assembly is used to move the cone head relative to the main cylinder by pushing the soil sampling rod to move, and in the process of separation of the cone head and the main cylinder, the whole formed by the scraper plate and the support rod rotates to the side away from the soil sampling rod under the limiting action of the elastic telescopic rod. The present invention can flexibly adjust the angle between the holding part and the sampling part under the condition of reliable transmission, and can perform reliable sampling operation. Most sampling and detection devices take samples by inserting a sampler into the soil. When sampling by direct insertion, the resistance of the sampler inserted into the soil is relatively large, which increases the difficulty of sampling by the sampling device and reduces the working efficiency of the sampling device. Therefore, a soil sampling and detection system for forest soil carbon pool is provided. Summary of the invention

[0007] The purpose of the present invention is to solve the problems of large resistance and slow sampling speed of current sampling devices during sampling, and to propose a soil sampling and detection system for forest soil carbon pool.

[0008] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a soil sampling and detection system for a forest soil carbon pool, comprising a base, a support column is fixedly installed on the upper surface of the base, a fixed plate is fixedly installed on one end of the support column, a hydraulic rod is fixedly installed on the upper surface of the fixed plate, one end of the hydraulic rod extends to the lower surface of the fixed plate and a lifting plate is fixedly installed, the inner wall of the lifting plate is slidably connected to the outer surface of the support column, a shaking component is arranged on the lower surface of the fixed plate, a rotating component is arranged on the lower surface of the lifting plate, and a cleaning component is arranged on the upper surface of the base;

[0009] The shaking assembly includes a worm and a rotating rod, one end of the rotating rod is rotatably connected to the lower surface of the fixed plate, the other end of the rotating rod extends outside the lower surface of the lifting plate, and the other end of the rotating rod is fixedly mounted with a rotating disk.

[0010] As a further description of the above technical solution:

[0011] A connecting rod is rotatably installed on the lower surface of the rotating disk via a rotating shaft, and a mounting clamp is rotatably installed on one end of the connecting rod via a rotating shaft. A limiting ring is fixedly installed on the side wall of the mounting clamp, and a support frame is fixedly installed on the outer surface of the limiting ring, and one end of the support frame is slidably connected to the upper surface of the base.

[0012] As a further description of the above technical solution:

[0013] A limiting groove is provided on the outer surface of the rotating rod, a limiting block is slidably installed on the inner wall of the limiting groove, a worm gear is fixedly installed on one end of the limiting block, a positioning rod is fixedly installed on the upper surface of the worm gear, one end of the positioning rod is rotatably connected to the lower surface of the lifting plate, and the worm wheel is meshingly connected to the worm.

[0014] As a further description of the above technical solution:

[0015] The rotating assembly includes a fixed rack and a limiting rod, one end of the fixed rack is fixedly connected to the upper surface of the base, the other end of the fixed rack passes through the interior of the lifting plate and extends to the outside of the upper surface of the lifting plate, and a mounting sleeve is rotatably mounted on the outer surface of the limiting rod, and the upper surface of the mounting sleeve is fixedly connected to the lower surface of the lifting plate.

[0016] As a further description of the above technical solution:

[0017] A transmission gear is fixedly mounted on the outer surface of the limit rod, the transmission gear is meshed and connected with the fixed rack, one end of the limit rod is fixedly connected with one end of the worm, and the other end of the limit rod is fixedly mounted with a driving bevel gear.

[0018] As a further description of the above technical solution:

[0019] A fixed plate is rotatably mounted on the lower surface of the lifting plate, a driven bevel gear is fixedly mounted on the outer surface of the fixed plate, the driven bevel gear is meshingly connected with the driving bevel gear, a travel groove is provided on the lower surface of the fixed plate, a sliding block is slidably mounted on the inner wall of the travel groove, and connecting springs are fixedly mounted on both side walls of the sliding block.

[0020] As a further description of the above technical solution:

[0021] One end of the connecting spring is fixedly connected to the inner wall of the travel groove, an automatic sampler is fixedly installed on the lower surface of the sliding block, and a through hole is arranged on the upper surface of the base, and the through hole and the limiting ring are both adapted to the size of the automatic sampler.

[0022] As a further description of the above technical solution:

[0023] The cleaning assembly includes a water tank and a fixed cylinder, the lower surfaces of the water tank and the fixed cylinder are fixedly connected to the upper surface of the base, a water inlet pipe is installed on the side wall of the water tank, one end of the water inlet pipe is fixedly connected to the side wall of the fixed cylinder, and a one-way valve is fixedly installed on the inner wall of the water inlet pipe.

[0024] As a further description of the above technical solution:

[0025] A connecting pipe is installed on the other side wall of the fixed cylinder, a one-way valve is arranged on the inner wall of the connecting pipe, one end of the connecting pipe extends to the inside of the base, and a water spray ring is installed on one end of the connecting pipe, the inner surface of the water spray ring is in contact with the inner wall of the perforation, and a plurality of water spray ports are arranged on the inner surface of the water spray ring.

[0026] As a further description of the above technical solution:

[0027] A sealing plate is slidably mounted on the inner wall of the fixed cylinder, a fixing rod is fixedly mounted on the upper surface of the sealing plate, one end of the fixing rod extends to the outside of the upper surface of the fixed cylinder and is fixedly mounted with a threaded sleeve, a reciprocating screw is threadedly mounted on the inner wall of the threaded sleeve, a movable rod is fixedly mounted on one end of the reciprocating screw, one end of the movable rod passes through the inner wall of the lifting plate and is rotatably connected to the lower surface of the fixed plate, toothed sprockets are fixedly mounted on the outer surfaces of the movable rod and the rotating rod, and the toothed sprockets are connected via a toothed chain transmission.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0029] 1. In the present invention, a shaking assembly is provided, and when the lifting plate descends, the worm wheel will be driven to move in the limiting groove through the positioning rod, so that the worm wheel is always meshed with the worm. When the worm rotates, the worm wheel will drive the rotating rod to rotate. At this time, the rotating rod will drive the rotating disk to rotate, so that the connecting rod drives the limiting ring to move back and forth under the support of the supporting frame through the mounting clamp. After the automatic sampler passes through the limiting ring, the automatic sampler will shake back and forth in the stroke groove under the action of the connecting spring, so that the automatic sampler can rotate and shake while descending, and automatically perform the sampling operation after the automatic sampler is inserted into the soil. Shaking occurs in the process of the sampler penetrating into the soil, which can make the soil around the sampler move outward, thereby increasing the activity range of the sampler, reducing the difficulty of the sampler penetrating into the soil, and thus improving the sampling efficiency of the sampler.

[0030] 2. In the present invention, a rotating component is provided, and after the device is moved to an appropriate position in the forest, the hydraulic rod drives the lifting plate to move downward under the limit of the support column. At this time, the lifting plate will drive the fixed plate to descend and drive the automatic sampler to descend synchronously. During the descent of the lifting plate, the limiting rod will be driven downward through the mounting sleeve. When the limiting rod descends, it will drive the transmission gear to move on the fixed rack. At this time, the transmission gear will cause the limiting rod to drive the driving bevel gear and the worm to rotate, and the fixed plate will be driven to rotate under the action of the driven bevel gear, thereby causing the automatic sampler to rotate under the action of the sliding block. During the process of inserting the sampler into the soil, it rotates and descends at the same time. Compared with the direct insertion method, the damage to the outer surface of the sampler is reduced. At the same time, the penetration rate of the sampler can be accelerated, and the sampling efficiency is further improved by cooperating with the shaking component.

[0031] 3. In the present invention, a cleaning component is provided. When the rotating rod rotates, the movable rod drives the reciprocating screw to rotate under the action of the sprocket wheel and the toothed chain. Under the action of the thread, the threaded sleeve drives the sealing plate to move up and down in the fixed cylinder through the fixed rod. When the sealing plate moves up, the water in the water storage tank is sucked into the fixed cylinder through the water inlet pipe. When the sealing plate descends, the water in the fixed cylinder is sprayed out from the water spray hole of the water spray ring through the connecting pipe. After the automatic sampler finishes sampling, the sprayed water cleans the outer surface of the automatic sampler. When the sampler penetrates into the soil, the sprayed water can moisten the soil and reduce the insertion resistance. After sampling, the sprayed water cleans the outer surface of the sampler. On the one hand, it can avoid the corrosion effect of soil adhering to the outer surface on one end of the sampler, and on the other hand, it can avoid the soil on the outer surface from contaminating the sample when the soil inside the sampler is taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of a soil sampling and detection system for forest soil carbon pool.

[0033] Figure 2 Schematic diagram of the internal structure of a soil sampling and detection system for forest soil carbon pool.

[0034] Figure 3 A soil sampling and detection system for forest soil carbon pool Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0035] Figure 4 It is a schematic diagram of the partial three-dimensional structure of a shaking component in a soil sampling and detection system for a forest soil carbon pool.

[0036] Figure 5 This is a schematic diagram of the decomposed structure of a fixed plate and an automatic sampler in a soil sampling and detection system for forest soil carbon pools.

[0037] Figure 6 A soil sampling and detection system for forest soil carbon pool Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0038] Figure 7 It is a schematic diagram of the three-dimensional structure of a water spray ring in a soil sampling and detection system for forest soil carbon pool.

[0039] Legend:

[0040] 1. Base; 2. Support column; 3. Fixed plate; 4. Hydraulic rod; 5. Lifting plate; 6. Shaking assembly; 61. Worm; 62. Rotating rod; 63. Limiting ring; 64. Mounting clamp; 65. Connecting rod; 66. Support frame; 67. Limiting groove; 68. Worm gear; 69. Positioning rod; 610. Rotating disk; 7. Cleaning assembly; 71. Water storage tank; 72. Fixed cylinder; 73. Movable rod; 74. Tooth sprocket; 75. Reciprocating screw; 76. Threaded sleeve; 77. Fixed rod; 78. Sealing plate; 79. Connecting pipe; 710. Water spray ring; 8. Rotating assembly; 81. Fixed rack; 82. Limiting rod; 83. Mounting sleeve; 84. Transmission gear; 85. Driving bevel gear; 86. Fixed disk; 87. Driven bevel gear; 9. Perforation; 10. Automatic sampler; 11. Sliding block; 12. Connecting spring. DETAILED DESCRIPTION

[0041] 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 described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-7 The present invention provides a technical solution: a soil sampling and detection system for a forest soil carbon pool, comprising a base 1, a support column 2 is fixedly installed on the upper surface of the base 1, a fixed plate 3 is fixedly installed on one end of the support column 2, a hydraulic rod 4 is fixedly installed on the upper surface of the fixed plate 3, one end of the hydraulic rod 4 extends to the lower surface of the fixed plate 3 and a lifting plate 5 is fixedly installed, the inner wall of the lifting plate 5 is slidably connected to the outer surface of the support column 2, a shaking component 6 is arranged on the lower surface of the fixed plate 3, a rotating component 8 is arranged on the lower surface of the lifting plate 5, and a cleaning component 7 is arranged on the upper surface of the base 1;

[0043] The shaking assembly 6 includes a worm 61 and a rotating rod 62, one end of the rotating rod 62 is rotatably connected to the lower surface of the fixed plate 3, the other end of the rotating rod 62 extends to the outside of the lower surface of the lifting plate 5, the other end of the rotating rod 62 is fixedly installed with a rotating disk 610, the lower surface of the rotating disk 610 is rotatably installed with a connecting rod 65 through a rotating shaft, one end of the connecting rod 65 is rotatably installed with a mounting clamp 64 through a rotating shaft, a limiting ring 63 is fixedly installed on the side wall of the mounting clamp 64, a support frame 66 is fixedly installed on the outer surface of the limiting ring 63, one end of the support frame 66 is slidably connected to the upper surface of the base 1, a limiting groove 67 is provided on the outer surface of the rotating rod 62, a limiting block is slidably installed on the inner wall of the limiting groove 67, one end of the limiting block is fixedly installed with a worm wheel 68, a positioning rod 69 is fixedly installed on the upper surface of the worm wheel 68, one end of the positioning rod 69 is rotatably connected to the lower surface of the lifting plate 5, and the worm wheel 68 is meshingly connected with the worm 61.

[0044] The specific implementation is as follows: when the lifting plate 5 descends, it will drive the worm wheel 68 to move in the limit groove 67 through the positioning rod 69, so that the worm wheel 68 is always engaged with the worm 61, and when the worm 61 rotates, the worm wheel 68 will drive the rotating rod 62 to rotate, and the rotating rod 62 will drive the rotating disk 610 to rotate, so that the connecting rod 65 drives the limit ring 63 to move back and forth under the support of the support frame 66 through the mounting clamp 64. After the automatic sampler 10 passes through the limit ring 63, the automatic sampler 10 will swing back and forth in the stroke groove under the action of the connecting spring 12, so that the automatic sampler 10 can rotate and swing while descending, and automatically perform the sampling operation after the automatic sampler 10 is inserted into the soil.

[0045] The rotating assembly 8 includes a fixed rack 81 and a limiting rod 82, one end of the fixed rack 81 is fixedly connected to the upper surface of the base 1, the other end of the fixed rack 81 passes through the interior of the lifting plate 5 and extends to the outside of the upper surface of the lifting plate 5, the outer surface of the limiting rod 82 is rotatably mounted with a mounting sleeve 83, the upper surface of the mounting sleeve 83 is fixedly connected to the lower surface of the lifting plate 5, the outer surface of the limiting rod 82 is fixedly mounted with a transmission gear 84, the transmission gear 84 is meshed with the fixed rack 81, one end of the limiting rod 82 is fixedly connected to one end of the worm 61, and the other end of the limiting rod 82 is fixedly mounted with a driving bevel gear 85 A fixed plate 86 is rotatably mounted on the lower surface of the lifting plate 5, and a driven bevel gear 87 is fixedly mounted on the outer surface of the fixed plate 86. The driven bevel gear 87 is meshed and connected with the driving bevel gear 85. A travel groove is provided on the lower surface of the fixed plate 86, and a sliding block 11 is slidably mounted on the inner wall of the travel groove. Connecting springs 12 are fixedly mounted on both side walls of the sliding block 11, and one end of the connecting spring 12 is fixedly connected to the inner wall of the travel groove. An automatic sampler 10 is fixedly mounted on the lower surface of the sliding block 11, and a through hole 9 is provided on the upper surface of the base 1. The through hole 9 and the limit ring 63 are both adapted to the size of the automatic sampler 10.

[0046] The specific implementation example is as follows: after the device is moved to an appropriate position in the forest, the hydraulic rod 4 drives the lifting plate 5 to move downward under the limit of the support column 2. At this time, the lifting plate 5 will drive the fixed plate 86 to descend and drive the automatic sampler 10 to descend synchronously. During the descent of the lifting plate 5, the limiting rod 82 will be driven downward through the mounting sleeve 83. When the limiting rod 82 descends, it will drive the transmission gear 84 to move on the fixed rack 81. At this time, the transmission gear 84 will cause the limiting rod 82 to drive the driving bevel gear 85 and the worm 61 to rotate, and the fixed plate 86 will be driven to rotate under the action of the driven bevel gear 87, so that the automatic sampler 10 will also rotate under the action of the sliding block 11.

[0047] The cleaning assembly 7 includes a water tank 71 and a fixed cylinder 72. The lower surfaces of the water tank 71 and the fixed cylinder 72 are fixedly connected to the upper surface of the base 1. A water inlet pipe is installed on the side wall of the water tank 71. One end of the water inlet pipe is fixedly connected to the side wall of the fixed cylinder 72. A one-way valve is fixedly installed on the inner wall of the water inlet pipe. A connecting pipe 79 is installed on the other side wall of the fixed cylinder 72. A one-way valve is arranged on the inner wall of the connecting pipe 79. One end of the connecting pipe 79 extends to the interior of the base 1. A water spray ring 710 is installed on one end of the connecting pipe 79. The inner surface of the water spray ring 710 fits the inner wall of the perforation. The water spray ring 71 0 is provided with a plurality of water spraying ports, a sealing plate 78 is slidably mounted on the inner wall of the fixed cylinder 72, a fixing rod 77 is fixedly mounted on the upper surface of the sealing plate 78, one end of the fixing rod 77 extends to the outside of the upper surface of the fixed cylinder 72 and is fixedly mounted with a threaded sleeve 76, a reciprocating screw 75 is threadedly mounted on the inner wall of the threaded sleeve 76, a movable rod 73 is fixedly mounted on one end of the reciprocating screw 75, one end of the movable rod 73 passes through the inner wall of the lifting plate 5 and is rotatably connected to the lower surface of the fixed plate 3, a toothed sprocket 74 is fixedly mounted on the outer surface of the movable rod 73 and the rotating rod 62, and the toothed sprockets 74 are connected by a toothed chain transmission.

[0048] The specific implementation is as follows: when the rotating rod 62 rotates, the movable rod 73 drives the reciprocating screw 75 to rotate under the action of the sprocket wheel 74 and the toothed chain, and the threaded sleeve 76 drives the sealing plate 78 to move up and down in the fixed cylinder 72 through the fixed rod 77 under the action of the thread. When the sealing plate 78 moves up, the water in the water tank 71 is sucked into the fixed cylinder 72 through the water inlet pipe. When the sealing plate 78 descends, the water in the fixed cylinder 72 is sprayed out from the water spray hole of the water spray ring 710 through the connecting pipe 79. After the automatic sampler 10 finishes sampling, the sprayed water cleans the outer surface of the automatic sampler 10.

[0049] Working principle: After the device is moved to the appropriate position in the forest, the hydraulic rod 4 drives the lifting plate 5 to move downward under the limit of the support column 2. At this time, the lifting plate 5 will drive the fixed plate 86 to descend and drive the automatic sampler 10 to descend synchronously. During the descent of the lifting plate 5, the limiting rod 82 will be driven downward through the mounting sleeve 83. When the limiting rod 82 descends, it will drive the transmission gear 84 to move on the fixed rack 81. At this time, the transmission gear 84 will make the limiting rod 82 drive the driving bevel gear 85 and the worm 61 to rotate, and under the action of the driven bevel gear 87, the fixed plate 86 will be driven to rotate, so that the automatic sampler 10 is also rotated under the action of the sliding block 11. The descent of the lifting plate 5 will drive the worm wheel 68 to move in the limiting groove 67 through the positioning rod 69, so that the worm wheel 68 is always engaged with the worm 61. When the worm 61 rotates, the worm wheel 68 will drive the rotating rod 62 to rotate. At this time, the rotating rod 62 will drive the rotating disk 610 to rotate. When the automatic sampler 10 is inserted into the soil, the sampling operation is automatically performed. When the rotating rod 62 rotates, the movable rod 73 drives the reciprocating screw 75 to rotate under the action of the sprocket wheel 74 and the sprocket chain. Under the action of the thread, the threaded sleeve 76 drives the sealing plate 78 to move up and down in the fixed tube 72 through the fixed rod 77. When the sealing plate 78 moves up, the water in the water storage tank 71 is sucked into the fixed tube 72 through the water inlet pipe. When the sealing plate 78 descends, the water in the fixed tube 72 is sprayed out from the water spray hole of the water spray ring 710 through the connecting pipe 79. After the automatic sampler 10 finishes sampling, the sprayed water cleans the outer surface of the automatic sampler 10.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A soil sampling and detection system for forest soil carbon pool, comprising a base (1), Features: A support column (2) is fixedly mounted on the upper surface of the base (1); a fixed plate (3) is fixedly mounted on one end of the support column (2); a hydraulic rod (4) is fixedly mounted on the upper surface of the fixed plate (3); one end of the hydraulic rod (4) extends to the lower surface of the fixed plate (3) where a lifting plate (5) is fixedly mounted; the inner wall of the lifting plate (5) is slidably connected to the outer surface of the support column (2); a shaking assembly (6) is arranged on the lower surface of the fixed plate (3); a rotating assembly (8) is arranged on the lower surface of the lifting plate (5); and a cleaning assembly (7) is arranged on the upper surface of the base (1); The shaking assembly (6) comprises a worm (61) and a rotating rod (62), one end of the rotating rod (62) is rotatably connected to the lower surface of the fixed plate (3), the other end of the rotating rod (62) extends to the outside of the lower surface of the lifting plate (5), the other end of the rotating rod (62) is fixedly mounted with a rotating disk (610), the lower surface of the rotating disk (610) is rotatably mounted with a connecting rod (65) via a rotating shaft, one end of the connecting rod (65) is rotatably mounted with a mounting clamp (64) via a rotating shaft, and a limit ring (64) is fixedly mounted on the side wall of the mounting clamp (64). 3) A support frame (66) is fixedly mounted on the outer surface of the limiting ring (63), one end of the support frame (66) is slidably connected to the upper surface of the base (1), a limiting groove (67) is provided on the outer surface of the rotating rod (62), a limiting block is slidably mounted on the inner wall of the limiting groove (67), a worm gear (68) is fixedly mounted on one end of the limiting block, a positioning rod (69) is fixedly mounted on the upper surface of the worm gear (68), one end of the positioning rod (69) is rotatably connected to the lower surface of the lifting plate (5), and the worm gear (68) is meshingly connected to the worm (61); The rotating assembly (8) comprises a fixed rack (81) and a limiting rod (82), one end of the fixed rack (81) is fixedly connected to the upper surface of the base (1), the other end of the fixed rack (81) penetrates the interior of the lifting plate (5) and extends to the outside of the upper surface of the lifting plate (5), a mounting sleeve (83) is rotatably mounted on the outer surface of the limiting rod (82), the upper surface of the mounting sleeve (83) is fixedly connected to the lower surface of the lifting plate (5), a transmission gear (84) is fixedly mounted on the outer surface of the limiting rod (82), the transmission gear (84) is meshedly connected to the fixed rack (81), one end of the limiting rod (82) is fixedly connected to one end of the worm (61), and the other end of the limiting rod (82) is fixedly mounted with a driving bevel gear (84). 5), a fixed plate (86) is rotatably mounted on the lower surface of the lifting plate (5), a driven bevel gear (87) is fixedly mounted on the outer surface of the fixed plate (86), the driven bevel gear (87) is meshingly connected with the driving bevel gear (85), a travel groove is provided on the lower surface of the fixed plate (86), a sliding block (11) is slidably mounted on the inner wall of the travel groove, connecting springs (12) are fixedly mounted on both side walls of the sliding block (11), one end of the connecting spring (12) is fixedly connected to the inner wall of the travel groove, an automatic sampler (10) is fixedly mounted on the lower surface of the sliding block (11), and a through hole (9) is provided on the upper surface of the base (1), the through hole (9) and the limit ring (63) are both adapted to the size of the automatic sampler (10).

2. A soil sampling and detection system for forest soil carbon pool according to claim 1, It is characterized in that The cleaning assembly (7) comprises a water storage tank (71) and a fixed cylinder (72); the lower surfaces of the water storage tank (71) and the fixed cylinder (72) are fixedly connected to the upper surface of the base (1); a water inlet pipe is installed on the side wall of the water storage tank (71); one end of the water inlet pipe is fixedly connected to the side wall of the fixed cylinder (72); and a one-way valve is fixedly installed on the inner wall of the water inlet pipe.

3. A soil sampling and detection system for forest soil carbon pool according to claim 2, It is characterized in that A connecting pipe (79) is connected and installed on the other side wall of the fixed cylinder (72), a one-way valve is provided on the inner wall of the connecting pipe (79), one end of the connecting pipe (79) extends to the interior of the base (1), and a water spray ring (710) is connected and installed on one end of the connecting pipe (79), the inner surface of the water spray ring (710) is in contact with the inner wall of the perforation, and a plurality of water spray ports are provided on the inner surface of the water spray ring (710).

4. A soil sampling and detection system for forest soil carbon pool according to claim 3, It is characterized in that A sealing plate (78) is slidably mounted on the inner wall of the fixed cylinder (72), a fixing rod (77) is fixedly mounted on the upper surface of the sealing plate (78), one end of the fixing rod (77) extends to the outside of the upper surface of the fixed cylinder (72) and is fixedly mounted with a threaded sleeve (76), a reciprocating screw (75) is threadedly mounted on the inner wall of the threaded sleeve (76), a movable rod (73) is fixedly mounted on one end of the reciprocating screw (75), one end of the movable rod (73) passes through the inner wall of the lifting plate (5) and is rotatably connected to the lower surface of the fixed plate (3), and toothed sprockets (74) are fixedly mounted on the outer surfaces of the movable rod (73) and the rotating rod (62), and the toothed sprockets (74) are connected to each other through a toothed chain transmission.

Images