Sampling facilities and methods for measuring soil carbon storage

Abstract

This invention provides a soil carbon storage measurement sampling mechanism and method, including a chassis, and further comprising: multiple sampling components arranged in a circular array above the chassis, each sampling component including a spring-loaded sampling cylinder; a side frame fixedly mounted on the right side of the chassis, with a telescopic rod fixedly mounted on the side frame; an auxiliary feeding mechanism located behind the telescopic rod; a rotary drive mechanism; and an air-blowing ring shell, wherein the side of the chassis near the side frame has a hole for the sampling cylinder to pass through, the air-blowing ring shell is fixedly mounted into the hole, and the bottom of the air-blowing ring shell has an annular air outlet. During multiple samplings, each sampling is completed using an independent sampling component, avoiding mutual interference between different samples; and after sampling, air is provided through the air-blowing ring shell to blow away dirt adhering to the outer wall of the sampling cylinder, achieving an automatic cleaning function.

Description

Technical Field

[0001] This invention relates to the field of soil carbon storage measurement, and particularly to soil carbon storage measurement sampling institutions and sampling methods. Background Technology

[0002] Soil carbon storage measurement involves multiple steps, among which sampling is a crucial one. Soil samples are collected by sampling agencies, and then measured to screen soil properties that are significantly related to soil carbon storage, such as total nitrogen, total phosphorus, and available nitrogen content, as quantitative indicators of soil carbon storage.

[0003] When conducting measurement sampling, it is necessary to collect samples from multiple different locations in a region and then perform comprehensive measurement and evaluation using multiple samples. However, after a single sampling, traditional sampling structures may have some soil adhering to both the inner and outer walls of the sampling structure. When sampling again, the adhering soil may enter the next sample, affecting different samples and thus impacting the measurement structure. Furthermore, after sampling, it is not easy to automatically remove the samples, as there is a lack of automatic soil removal design. Summary of the Invention

[0004] This invention provides a soil carbon storage measurement sampling mechanism and sampling method to solve the technical problem that soil samples adhering to the inner and outer walls of the sampling tube will affect the results of subsequent sampling.

[0005] The present invention solves the above-mentioned technical problems through the following technical solutions:

[0006] This invention provides a soil carbon storage measurement sampling mechanism, including a chassis with multiple support blocks arranged in a circular array fixedly installed along the bottom edge of the chassis; it also includes: multiple sampling components arranged in a circular array above the chassis, each sampling component including a spring-loaded sampling cylinder that can move vertically; a side frame fixedly installed on the right side of the chassis, with a telescopic rod fixedly installed on the side frame for pushing the sampling cylinder downwards; an auxiliary feeding mechanism located behind the telescopic rod; a rotary drive mechanism for driving the multiple sampling components to perform circular motion together, so that the multiple sampling components pass sequentially under the telescopic rod and under the auxiliary feeding mechanism; and an air-blowing ring shell, with a hole for the sampling cylinder to pass through on the side of the chassis near the side frame, the air-blowing ring shell fixedly installed in the hole, and an annular air outlet at the bottom of the air-blowing ring shell to blow away the contaminants adhering to the outer wall of the sampling cylinder after sampling.

[0007] In this technical solution, when multiple samples are taken, each sample is taken using an independent sampling component to avoid mutual interference between different samples; and after the sampling is completed, air is provided through the air blowing ring shell, and the dirt attached to the outer wall of the sampling cylinder is blown away by the airflow, which plays a role in automatic cleaning.

[0008] Preferably, the sampling assembly further includes a connecting strip, a guide sleeve, and a guide post; the guide sleeve is fixedly installed on the connecting strip, the guide post is connected to the guide sleeve with a clearance fit, a connecting seat is fixedly connected to the bottom end of the guide post, the connecting seat is fixedly connected to the top side wall of the sampling cylinder, the top end of the sampling cylinder is elastically connected to the bottom surface of the connecting strip through a first spring, a pressure seat is fixedly connected to the top side wall of the sampling cylinder, a push plate is fitted inside the sampling cylinder, the push plate is elastically connected to the top inner wall of the sampling cylinder through a second spring, and a push rod is fixedly connected to the top surface of the push plate, the push rod is connected to the first through hole opened at the top of the sampling cylinder with a clearance fit, and the push rod passes through the second through hole opened on the connecting strip; the top end of the push rod is provided with a spherical surface.

[0009] In this technical solution, the sampling component takes samples through a sampling tube and pushes the push plate with a push rod to push out the sampled soil sample.

[0010] Preferably, the rotary drive mechanism includes a motor, a rotating shaft, and a fixed sleeve; the output shaft end of the motor is fixedly connected to the top end of the rotating shaft, the bottom end of the rotating shaft is rotatably connected to the chassis, the fixed sleeve is fixedly sleeved onto the rotating shaft, and the fixed sleeve is fixedly connected to the end of the connecting strip of the sampling component; a fixed frame is fixedly connected to the bottom of the motor, and the fixed frame is fixedly installed on the top surface of the chassis.

[0011] In this technical solution, the rotary drive mechanism is used to drive all sampling components to pass through the telescopic rod and the auxiliary feeding mechanism in sequence, so that all sampling components can take samples in sequence and discharge the soil samples after sampling.

[0012] Preferably, the auxiliary feeding mechanism includes a V-shaped arc block; both sides of the V-shaped arc block are provided with inclined surfaces for the push rod tip to travel and contact, and the width of the V-shaped arc block gradually increases from bottom to top, and the V-shaped arc block is fixedly connected to the fixed frame.

[0013] In this technical solution, after the sampling component travels past the bottom of the auxiliary feeding mechanism, the auxiliary feeding mechanism provides pressure to the push rod, causing the pusher to push out the soil sample.

[0014] Preferably, a hopper is provided below the V-shaped arc block, and the hopper is mounted on the chassis. A receiving mechanism is provided below the chassis. The receiving mechanism includes a drive sprocket, a driven sprocket, a chain, a mounting bracket, a sample tube, a second pulley, a third pulley, and a second transmission belt. The drive sprocket and the driven sprocket are rotatably mounted to the bottom of the chassis. The chain is wound around the drive sprocket and the driven sprocket. Multiple mounting brackets are fixedly mounted at equal intervals on the outer ring of the chain. Sample tubes are provided on each of the multiple mounting brackets. The third pulley is coaxially fixed to the drive sprocket. The second pulley is fixedly sleeved to the bottom end of the rotating shaft of the rotary drive mechanism. The second transmission belt is wound around the second pulley and the third pulley.

[0015] In this technical solution, the auxiliary feeding mechanism feeds the sampling components, and the soil sample falls into the feeding hopper and then enters the receiving mechanism.

[0016] Preferably, the chassis has a groove, the top of the hopper is embedded in the groove, and a first insert is fixed to both the front and rear sides of the hopper. The front and rear walls of the groove have first side grooves, and the first insert is inserted into the first side groove. The left side wall of the groove has a second side groove, and a second insert is fixed to the left side wall of the hopper and inserted into the second side groove. A third spring is fixedly installed in the second side groove and is fixedly connected to the second insert.

[0017] In this technical solution, the hopper is movable through the first insert, the second insert, the first side groove and the second side groove, and the hopper is elastically installed through the third spring.

[0018] Preferably, a vibration mechanism is provided inside the side frame. The vibration mechanism includes a rack, a fixed bar, a cylindrical gear, a rotating rod, a movable plate, a first bevel gear, and a second bevel gear. The bottom end of the rack is fixedly connected to the movable plate, which is fixedly connected to the bottom end of the telescopic rod. The rack meshes with the cylindrical gear, and the cylindrical gear is rotatably connected to the bottom end of the fixed bar. The top end of the fixed bar is fixedly connected to the inner top of the side frame. The top end of the rotating rod is fixedly sleeved with the second bevel gear, which meshes with the first bevel gear. The first bevel gear is coaxially fixedly connected to the cylindrical gear. The rotating rod passes through a circular hole opened on the movable plate, and the bottom end of the rotating rod is rotatably connected to the bottom of the side frame.

[0019] Preferably, the vibration mechanism further includes a first transmission belt, a first pulley, and a cam; there are two first pulleys, and both first pulleys are rotatably mounted inside the chassis. The first transmission belt is wound around the two first pulleys. One of the first pulleys is fixedly connected to the bottom end of the rotating rod, and the other first pulley is fixedly connected to a cam. The cam contacts the right side wall of the hopper.

[0020] In this technical solution, the vibration mechanism provides vibration to the hopper to assist in material feeding.

[0021] Preferably, an inflation mechanism is provided inside the side frame, the inflation mechanism including a corrugated airbag, an air tube, a first one-way valve and a second one-way valve; the top of the corrugated airbag is fixedly connected to the inner top wall of the side frame, the first one-way valve and the second one-way valve are fixedly installed on the top of the corrugated airbag, the first one-way valve is connected to the air tube, the air tube is fixedly laid on the side frame wall, and the end of the air tube away from the first one-way valve is fixedly connected to the air blowing ring shell; the top surface of the movable plate is fixedly connected to the bottom of the corrugated airbag.

[0022] In this technical solution, the inflation mechanism fills the air ring shell with gas, causing the air outlet of the air ring shell to blow out airflow.

[0023] Furthermore, the present invention provides a sampling method, the sampling method comprising the following steps:

[0024] Step 1: The sampling tube is pushed down by extending the telescopic rod. The sampling tube passes through the air-blowing ring shell on the chassis and is inserted into the soil layer to achieve sampling. At the same time, the first spring is stretched.

[0025] Step 2: The telescopic rod retracts, and the sampling cylinder is reset by the elastic force of the first spring. The air outlet of the air blowing ring blows air onto the outer wall of the sampling cylinder, and the attached dirt is blown off by the air pressure.

[0026] Step 3: The rotary drive mechanism drives all sampling components to rotate, so that the sampling components after sampling move to the bottom of the auxiliary feeding mechanism. The auxiliary feeding mechanism discharges the sample from the sampling components after sampling, and the next sampling component to be sampled moves to the telescopic rod to wait for the next sampling.

[0027] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0028] The positive and progressive effects of this invention are as follows:

[0029] The aforementioned soil carbon storage measurement sampling mechanism and method, through the arrangement of multiple sampling components and a rotary drive mechanism, uses the rotary drive mechanism to drive multiple sampling components in a circular motion to adjust the sampling position, i.e., the sampling component at the telescopic rod. During multiple samplings, it ensures that each sampling is completed using an independent sampling component, preventing interference between different samples and guaranteeing the measurement results. Furthermore, a blowing ring shell is included. After sampling, during the repositioning process of the sampling cylinder, the air outlet of the blowing ring shell blows air towards the outer wall of the sampling cylinder. Through the air pressure, the adhering contaminated soil is removed. Automatic blowing eliminates the need for manual cleaning of the outer wall. Furthermore, an auxiliary feeding mechanism is installed behind the telescopic rod. After a single sampling component has completely sampled at the telescopic rod position, the next sampling component moves to the telescopic rod, and the aforementioned sampling component that has completed sampling moves to the auxiliary feeding mechanism. The auxiliary feeding mechanism automatically pushes out the soil sample for automatic discharge, facilitating sample removal. Simultaneously, the discharged soil sample is loaded into a receiving mechanism through a feeding hopper, and a vibration mechanism is installed at the feeding hopper to provide vibration for discharging, facilitating the downward discharge of the soil sample from the feeding hopper. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 This is a schematic diagram of the sampling component and the structure inside the side frame of the present invention.

[0032] Figure 3 This is a schematic diagram of the internal structure of the sampling cylinder of the present invention.

[0033] Figure 4 This is a schematic diagram of the air-blowing ring shell of the present invention.

[0034] Figure 5 This is a schematic diagram of the structure of the back side of the side frame of the present invention.

[0035] Figure 6 For the present invention Figure 5 Enlarged structural diagram of section A in the middle.

[0036] Figure 7 This is a schematic diagram of the sampling component, V-shaped arc block, and feeding hopper of the present invention.

[0037] Figure 8 This is a schematic diagram of the bottom structure of the chassis of the present invention.

[0038] Figure 9 This is a schematic diagram of the material receiving mechanism of the present invention.

[0039] Figure 10 This is a schematic diagram of the structure of the vibration mechanism and the feeding hopper of the present invention.

[0040] Explanation of reference numerals in the attached figures

[0041] 1. Chassis; 101. Support block; 102. Groove; 103. First side groove; 104. Second side groove;

[0042] 2. Fixture;

[0043] 3. Rotary drive mechanism; 301. Motor; 302. Rotating shaft; 303. Fixing sleeve;

[0044] 4. Sampling assembly; 401. Connecting bar; 402. Guide sleeve; 403. Guide post; 404. Connecting seat; 405. Sampling cylinder; 406. First spring; 407. Pressure seat; 408. Push rod; 409. Push plate; 410. Second spring;

[0045] 5. V-shaped arc block;

[0046] 6. Side frame;

[0047] 7. Telescopic pole;

[0048] 8. Air-blowing ring housing; 801. Air outlet;

[0049] 9. Inflation mechanism; 901. Corrugated airbag; 902. Air tube; 903. First one-way valve; 904. Second one-way valve;

[0050] 10. Vibration mechanism; 1001. Rack; 1002. Fixed bar; 1003. Cylindrical gear; 1004. Rotating rod; 1005. Movable plate; 1006. First bevel gear; 1007. Second bevel gear; 1008. First transmission belt; 1009. First pulley; 1010. Cam;

[0051] 11. Feed hopper; 1101. First insert; 1102. Second insert; 1103. Third spring;

[0052] 12. Receiving mechanism; 1201. Drive sprocket; 1202. Driven sprocket; 1203. Chain; 1204. Mounting frame; 1205. Sample tube; 1206. Second pulley; 1207. Third pulley; 1208. Second transmission belt. Detailed Implementation

[0053] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0054] like Figure 1-10As shown, the soil carbon storage measurement sampling mechanism includes a chassis 1, on which multiple support blocks 101 arranged in a circular array are fixedly installed along the bottom edge; it also includes: multiple sampling components 4 arranged in a circular array above the chassis 1, each sampling component 4 including a spring-loaded sampling cylinder 405 that can move vertically; a side frame 6 fixedly installed on the right side of the chassis 1, and a telescopic rod 7 fixedly installed on the side frame 6 for pushing the sampling cylinder 405 downward; and an auxiliary feeding mechanism. The auxiliary feeding mechanism is located behind the telescopic rod 7; the rotary drive mechanism 3 is used to drive multiple sampling components 4 to perform circular motion together, so that the multiple sampling components 4 pass through the telescopic rod 7 and the auxiliary feeding mechanism in sequence; the air blowing ring shell 8 has a hole for the sampling cylinder 405 to pass through on the side surface of the chassis 1 near the side frame 6, and the air blowing ring shell 8 is fixedly installed in the hole, and the bottom of the air blowing ring shell 8 is provided with an annular air outlet 801 to blow away the dirt adhering to the outer wall of the sampling cylinder 405 after sampling.

[0055] like Figure 1-3 As shown, as a specific technical solution, the sampling assembly 4 further includes a connecting strip 401, a guide sleeve 402, and a guide post 403; the guide sleeve 402 is fixedly installed on the connecting strip 401, the guide post 403 is clearance-fitted with the guide sleeve 402, a connecting seat 404 is fixedly connected to the bottom end of the guide post 403, the connecting seat 404 is fixedly connected to the top side wall of the sampling cylinder 405, and the top end of the sampling cylinder 405 is elastically connected to the bottom surface of the connecting strip 401 through a first spring 406. A pressure seat 407 is fixedly connected to the top side wall of the sampling cylinder 405. A push plate 409 is connected to the inside of the sampling cylinder 405. The push plate 409 is elastically connected to the top inner wall of the sampling cylinder 405 by a second spring 410. A push rod 408 is fixedly connected to the top surface of the push plate 409. The push rod 408 is connected to the first through hole opened at the top of the sampling cylinder 405 with clearance. The push rod 408 passes through the second through hole opened on the connecting strip 401. The top end of the push rod 408 is provided with a spherical surface.

[0056] When a single sampling component 4 performs sampling, such as Figure 2 As shown, the sampling assembly 4 is located at the telescopic rod 7, with the bottom end of its sampling cylinder 405 aligned with the air-blowing ring shell 8. The telescopic rod 7 is initially in a retracted state. Then, the telescopic rod 7 extends, pushing the pressure seat 407 via the movable plate 1005, causing the sampling cylinder 405 to descend. The sampling cylinder 405 passes through the air-blowing ring shell 8 and inserts into the soil layer. During this process, the first spring 406 undergoes tensile deformation. When the telescopic rod 7 retracts and returns to its original position, the spring force of the first spring 406 causes the sampling cylinder 405 to leave the soil layer and return to its original position. Figure 2 The state shown.

[0057] In the above process, the sampling cylinder 405 is guided by the guide post 403 and the guide sleeve 402 during the up and down movement.

[0058] The telescopic rod 7 is preferably a pneumatic cylinder, an electric push rod, or a hydraulic cylinder.

[0059] like Figure 2 As shown, an inflation mechanism 9 is provided inside the side frame 6. The inflation mechanism 9 includes a corrugated airbag 901, an air tube 902, a first one-way valve 903, and a second one-way valve 904. The top of the corrugated airbag 901 is fixedly connected to the inner top wall of the side frame 6. The first one-way valve 903 and the second one-way valve 904 are fixedly installed on the top of the corrugated airbag 901. The first one-way valve 903 is connected to the air tube 902. The air tube 902 is fixedly laid on the wall of the side frame 6, and the end of the air tube 902 away from the first one-way valve 903 is fixedly connected to the air blowing ring shell 8. The top surface of the movable plate 1005 is fixedly connected to the bottom of the corrugated airbag 901.

[0060] In such Figure 2 In the state shown, the corrugated airbag 901 is in a contracted state. When the sampling cylinder 405 moves downward, the bottom end of the corrugated airbag 901 moves downward together with the movable plate 1005 to stretch the corrugated airbag 901. The volume of the corrugated airbag 901 increases, and outside air enters the corrugated airbag 901 through the second one-way valve 904.

[0061] When the sampling cylinder 405 moves upward to reset, the bottom end of the corrugated airbag 901 moves upward together with the movable plate 1005. The movable plate 1005 compresses the corrugated airbag 901, reducing its volume and squeezing out the internal air. The air enters the blowing ring shell 8 through the first one-way valve 903 and the air pipe 902, and is then blown out through the air outlet 801 to the outer wall of the sampling cylinder 405. The airflow cleans the attached dirt.

[0062] like Figure 1 As shown, the rotary drive mechanism 3 includes a motor 301, a rotating shaft 302, and a fixed sleeve 303; the output shaft end of the motor 301 is fixedly connected to the top end of the rotating shaft 302, the bottom end of the rotating shaft 302 is rotatably connected to the chassis 1, the fixed sleeve 303 is fixedly sleeved onto the rotating shaft 302, and the fixed sleeve 303 is fixedly connected to the end of the connecting strip 401 of the sampling component 4; a fixed frame 2 is fixedly connected to the bottom of the motor 301, and the fixed frame 2 is fixedly installed on the top surface of the chassis 1.

[0063] After a single sampling component 4 completes sampling, the sampling component 4 that has completed sampling is moved to the lower part of the auxiliary feeding mechanism by the rotary drive mechanism 3. Specifically, the motor 301 drives the rotating shaft 302 to rotate, and the fixed sleeve 303 on the rotating shaft 302 rotates together, thereby causing all sampling components 4 to rotate, so that the sampling component 4 that has completed sampling moves to the auxiliary feeding mechanism, while the sampling component 4 that has not been sampled moves to the position of the telescopic rod 7 to wait for the next sampling.

[0064] Among them, motor 301 is preferably a servo motor 301.

[0065] like Figure 7 As shown, the auxiliary feeding mechanism includes a V-shaped arc block 5; both sides of the V-shaped arc block 5 are provided with inclined surfaces for the top of the push rod 408 to travel and contact, and the width of the V-shaped arc block 5 gradually increases from bottom to top, and the V-shaped arc block 5 is fixedly connected to the fixed frame 2.

[0066] V-shaped arc block 5 is as follows Figure 7 As shown in the figure, after sampling, the sampling component 4 moves to one side of the V-shaped arc block 5. The spherical top surface of the push rod 408 of the sampling component 4 is in contact with the top of the inclined surface of one side of the V-shaped arc block 5. As it continues to move, the push rod 408 moves towards the bottom center of the V-shaped arc block 5. The push rod 408 is squeezed downwards and moves downwards about the entire sampling component 4. The push rod 408 drives the push plate 409 to move together. The push plate 409 pushes out the soil sample in the sampling cylinder 405 and stretches the second spring 410 at the same time.

[0067] Through the above, automatic material discharge is achieved; as the next sampling component 4 moves to the telescopic rod 7, the sampling component 4 that has completed material discharge remains as described above. Figure 7 As shown, the sampling component 4 at the telescopic rod 7 completes sampling and moves towards the V-shaped arc block 5. Only after the material is discharged does the sampling component 4 leave the V-shaped arc block 5.

[0068] like Figure 8-9As shown, as a specific technical solution, a feeding hopper 11 is provided below the V-shaped arc block 5, and the feeding hopper 11 is installed on the chassis 1. A receiving mechanism 12 is provided below the chassis 1. The receiving mechanism 12 includes a driving sprocket 1201, a driven sprocket 1202, a chain 1203, a mounting bracket 1204, a sample tube 1205, a second pulley 1206, a third pulley 1207, and a second transmission belt 1208. Both the driving sprocket 1201 and the driven sprocket 1202 are rotatably mounted on the chassis 1. At the bottom, the chain 1203 is wound around the driving sprocket 1201 and the driven sprocket 1202. Multiple mounting brackets 1204 are fixedly installed at equal intervals on the outer ring of the chain 1203. Sample tubes 1205 are provided on each of the multiple mounting brackets 1204. The driving sprocket 1201 is coaxially fixedly connected to the third pulley 1207. The second pulley 1206 is fixedly sleeved to the bottom end of the rotating shaft 302 of the rotary drive mechanism 3. The second transmission belt 1208 is wound around the second pulley 1206 and the third pulley 1207.

[0069] The soil sample discharged from the sampling component 4 below the V-shaped arc block 5 falls into the discharge hopper 11, and then into the sample tube 1205 of the receiving mechanism 12 for collection.

[0070] The receiving mechanism 12 has multiple sample tubes 1205, each corresponding to a single sampling component 4. When the rotating shaft 302 of the rotary drive mechanism 3 rotates, changing the sampling component 4 below the V-shaped arc block 5, the rotating shaft 302 drives the second pulley 1206 to rotate. Through the second transmission belt 1208, the third pulley 1207 and the driving sprocket 1201 rotate, cooperating with the driven sprocket 1202 to move the chain 1203, thereby adjusting the position of the sample tubes 1205. This allows the sample tubes 1205 corresponding to the sampling components 4 that are to be moved to the bottom of the V-shaped arc block 5 to be moved below the discharge hopper 11. This design ensures that the soil sample discharged from each sampling component 4 is collected through a separate sample tube 1205.

[0071] The sample tube 1205 and the mounting bracket 1204 are detachably connected, for example, by means of a threaded connection, so that the sample tube 1205 can be detached.

[0072] like Figure 5 , Figure 6 as well as Figure 10As shown, the chassis 1 has a groove 102, the top of the hopper 11 is embedded in the groove 102, the front and rear sides of the hopper 11 are fixedly connected to the first insert 1101, the front and rear groove walls of the groove 102 are both provided with the first side groove 103, the first insert 1101 is inserted into the first side groove 103, the left side wall of the groove 102 is provided with the second side groove 104, the left side wall of the hopper 11 is fixedly connected to the second insert 1102, and the second insert 1102 is inserted into the second side groove 104, a third spring 1103 is fixedly installed in the second side groove 104, and the third spring 1103 is fixedly connected to the second insert 1102.

[0073] A vibration mechanism 10 is provided inside the side frame 6. The vibration mechanism 10 includes a rack 1001, a fixed bar 1002, a cylindrical gear 1003, a rotating rod 1004, a movable plate 1005, a first bevel gear 1006, and a second bevel gear 1007. The bottom end of the rack 1001 is fixedly connected to the movable plate 1005, which is fixedly connected to the bottom end of the telescopic rod 7. The rack 1001 meshes with the cylindrical gear 1003, and the cylindrical gear 1003 is connected to the fixed bar 7. The bottom end of the strip 1002 is rotatably connected, and the top end of the fixed strip 1002 is fixedly connected to the top inner side of the side frame 6. The top end of the rotating rod 1004 is fixedly sleeved with a second bevel gear 1007. The second bevel gear 1007 is meshed with a first bevel gear 1006. The first bevel gear 1006 is coaxially fixedly connected with a cylindrical gear 1003. The rotating rod 1004 passes through a circular hole opened on the movable plate 1005. The bottom end of the rotating rod 1004 is rotatably connected to the bottom of the side frame 6.

[0074] The vibration mechanism 10 further includes a first transmission belt 1008, a first pulley 1009, and a cam 1010; there are two first pulleys 1009, and both first pulleys 1009 are rotatably mounted inside the chassis 1. The first transmission belt 1008 is wound around the two first pulleys 1009. One of the first pulleys 1009 is fixedly connected to the bottom end of the rotating rod 1004, and the other first pulley 1009 is fixedly connected to the cam 1010. The cam 1010 contacts the right side wall of the hopper 11.

[0075] By setting a vibration mechanism 10 for vibration of the hopper 11, it is easier to discharge the material downwards from the hopper 11.

[0076] After the single sampling component 4 completes the material discharge below the V-shaped arc block 5, it remains below the V-shaped arc block 5. The discharged material is located in the feed hopper 11 and enters the receiving pipe through the feed hopper 11. Some material adheres to the wall of the feed hopper 11. When the sampling component 4 located at the telescopic rod 7 performs sampling, the telescopic rod 7 needs to extend and retract, the movable plate 1005 moves up and down, and the rack 1001 moves with the movable plate 1005. The rack 1001 meshes with the cylindrical gear 1003, causing the cylindrical gear 1003 to... 3 rotates together with the first bevel gear 1006. Through the meshing of the first bevel gear 1006 and the second bevel gear 1007, the rotating rod 1004 rotates. The rotating rod 1004 drives a first pulley 1009 to rotate. Through the first transmission belt 1008, the other first pulley 1009 and the cam 1010 rotate. When the cam 1010 rotates, it knocks and pushes the hopper 11. In conjunction with the third spring 1103, the hopper 11 vibrates to facilitate the discharge of the attached material.

[0077] If some material remains after vibration, it can be brushed off using tools such as a brush.

[0078] The hopper 11 has a gap between it and the wall of the groove 102. The gap allows the hopper 11 to have a vibrating space. The first side groove 103 and the first insert 1101 have a gap in the horizontal direction, and the second side groove 104 and the second insert 1102 have a gap in the horizontal direction, which meets the vibration requirements of the hopper 11.

[0079] The sampling method includes the following steps:

[0080] Step 1: The extension of the telescopic rod 7 pushes the sampling cylinder 405 downward. The sampling cylinder 405 passes through the air-blowing ring shell 8 on the chassis 1 and is inserted into the soil layer to achieve sampling. At the same time, the first spring 406 is stretched.

[0081] Step 2: The telescopic rod 7 retracts, and the sampling cylinder 405 is reset by the elastic force of the first spring 406. The air outlet 801 of the air blowing ring shell 8 blows air onto the outer wall of the sampling cylinder 405, and the attached dirt is blown off by the air pressure.

[0082] Step 3: The rotary drive mechanism 3 drives all sampling components 4 to rotate, so that the sampling components 4 after sampling move to the bottom of the auxiliary feeding mechanism. The sample in the sampling components 4 after sampling is discharged through the auxiliary feeding mechanism, and the next sampling component 4 to be sampled moves to the telescopic rod 7 to wait for the next sampling.

[0083] This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. A soil carbon storage measurement and sampling mechanism, comprising a chassis (1), wherein a plurality of support blocks (101) arranged in a circular array are fixedly installed along the bottom edge of the chassis (1); characterized in that, Also includes: The sampling component (4) is a plurality of sampling components (4) and the plurality of sampling components (4) are arranged in a ring array above the chassis (1). The sampling component (4) includes a sampling cylinder (405) that is elastically installed and can move vertically. Side frame (6), the side frame (6) is fixedly installed on the right side of the chassis (1), and the side frame (6) is fixedly installed with a telescopic rod (7) for pushing the sampling tube (405) downward. An auxiliary feeding mechanism is provided behind the telescopic rod (7); The rotary drive mechanism (3) is used to drive multiple sampling components (4) to perform circular motion together, so that the multiple sampling components (4) pass under the telescopic rod (7) and the auxiliary feeding mechanism in sequence and successively; The air blowing ring shell (8) has a hole on the side of the chassis (1) near the side frame (6) for the sampling cylinder (405) to pass through. The air blowing ring shell (8) is fixedly installed in the hole, and the bottom of the air blowing ring shell (8) is provided with an annular air outlet (801) to blow away the dirt adhering to the outer wall of the sampling cylinder (405) after sampling. The sampling assembly (4) further includes a connecting strip (401), a guide sleeve (402), and a guide post (403); the guide sleeve (402) is fixedly installed on the connecting strip (401), the guide post (403) is connected to the guide sleeve (402) with a clearance fit, the bottom end of the guide post (403) is fixedly connected to a connecting seat (404), the connecting seat (404) is fixedly connected to the top side wall of the sampling cylinder (405), the top end of the sampling cylinder (405) is elastically connected to the bottom surface of the connecting strip (401) through a first spring (406), and the sampling cylinder (401) is elastically connected to the bottom surface of the connecting strip (401) through a first spring (406). 5) The top side wall is fixed with a pressure seat (407), and the inside of the sampling cylinder (405) is connected with a push plate (409). The push plate (409) and the top inner wall of the sampling cylinder (405) are elastically connected by a second spring (410). The top surface of the push plate (409) is fixed with a push rod (408). The push rod (408) is connected with a first through hole opened at the top of the sampling cylinder (405) with a clearance fit. The push rod (408) passes through the second through hole opened on the connecting strip (401). The top end of the push rod (408) is provided with a spherical surface.

2. The soil carbon storage measurement and sampling mechanism as described in claim 1, characterized in that: The rotary drive mechanism (3) includes a motor (301), a rotating shaft (302), and a fixed sleeve (303); the output shaft end of the motor (301) is fixedly connected to the top end of the rotating shaft (302), the bottom end of the rotating shaft (302) is rotatably connected to the chassis (1), the fixed sleeve (303) is fixedly sleeved onto the rotating shaft (302), and the fixed sleeve (303) is fixedly connected to the end of the connecting strip (401) of the sampling component (4); a fixed frame (2) is fixedly connected to the bottom of the motor (301), and the fixed frame (2) is fixedly installed on the top surface of the chassis (1).

3. The soil carbon storage measurement and sampling mechanism as described in claim 2, characterized in that: The auxiliary feeding mechanism includes a V-shaped arc block (5); both sides of the V-shaped arc block (5) are provided with inclined surfaces for the top of the push rod (408) to travel and contact, and the width of the V-shaped arc block (5) gradually increases from bottom to top. The V-shaped arc block (5) is fixedly connected to the fixed frame (2).

4. The soil carbon storage measurement and sampling mechanism as described in claim 3, characterized in that: A feeding hopper (11) is provided below the V-shaped arc block (5), and the feeding hopper (11) is installed on the chassis (1). A receiving mechanism (12) is provided below the chassis (1). The receiving mechanism (12) includes a drive sprocket (1201), a driven sprocket (1202), a chain (1203), a mounting bracket (1204), a sample tube (1205), a second pulley (1206), a third pulley (1207), and a second transmission belt (1208). The drive sprocket (1201) and the driven sprocket (1202) are both rotatably installed on the bottom of the chassis (1). The chain (1203) is wound around the driving sprocket (1201) and the driven sprocket (1202). Multiple mounting brackets (1204) are fixedly installed at equal intervals on the outer ring of the chain (1203). Sample tubes (1205) are provided on each of the multiple mounting brackets (1204). The driving sprocket (1201) is coaxially fixedly connected to a third pulley (1207). The second pulley (1206) is fixedly sleeved to the bottom end of the rotating shaft (302) of the rotary drive mechanism (3). The second transmission belt (1208) is wound around the second pulley (1206) and the third pulley (1207).

5. The soil carbon storage measurement and sampling mechanism as described in claim 4, characterized in that: The chassis (1) has a groove (102) and the top of the hopper (11) is embedded in the groove (102). The front and rear sides of the hopper (11) are fixed with first inserts (1101). The front and rear walls of the groove (102) are provided with first side grooves (103). The first inserts (1101) are inserted into the first side grooves (103). The left side wall of the groove (102) is provided with a second side groove (104). The left side wall of the hopper (11) is fixed with a second insert (1102) and the second insert (1102) is inserted into the second side groove (104). A third spring (1103) is fixedly installed in the second side groove (104) and the third spring (1103) is fixedly connected to the second insert (1102).

6. The soil carbon storage measurement and sampling mechanism as described in claim 5, characterized in that: The side frame (6) is equipped with a vibration mechanism (10), which includes a rack (1001), a fixed bar (1002), a cylindrical gear (1003), a rotating rod (1004), a movable plate (1005), a first bevel gear (1006), and a second bevel gear (1007). The bottom end of the rack (1001) is fixedly connected to the movable plate (1005), which is fixedly connected to the bottom end of the telescopic rod (7). The rack (1001) is meshed with the cylindrical gear (1003). The bottom end of the rotating rod (1004) is rotatably connected to the fixed bar (1002), and the top end of the fixed bar (1002) is fixedly connected to the top inner side of the side frame (6). The top end of the rotating rod (1004) is fixedly sleeved with a second bevel gear (1007), and the second bevel gear (1007) is meshed with a first bevel gear (1006). The first bevel gear (1006) is coaxially fixedly connected to a cylindrical gear (1003). The rotating rod (1004) passes through a round hole opened on the movable plate (1005), and the bottom end of the rotating rod (1004) is rotatably connected to the bottom of the side frame (6).

7. The soil carbon storage measurement and sampling mechanism as described in claim 6, characterized in that: The vibration mechanism (10) further includes a first transmission belt (1008), a first pulley (1009), and a cam (1010); there are two first pulleys (1009), and both first pulleys (1009) are rotatably mounted inside the chassis (1). The first transmission belt (1008) is wound around the two first pulleys (1009). One of the first pulleys (1009) is fixedly connected to the bottom end of the rotating rod (1004), and the other first pulley (1009) is fixedly connected to a cam (1010). The cam (1010) contacts the right side wall of the hopper (11).

8. The soil carbon storage measurement and sampling mechanism as described in claim 6, characterized in that: An inflation mechanism (9) is provided inside the side frame (6). The inflation mechanism (9) includes a corrugated airbag (901), an air tube (902), a first one-way valve (903), and a second one-way valve (904). The top of the corrugated airbag (901) is fixedly connected to the top inner wall of the side frame (6). The top of the corrugated airbag (901) is fixedly installed with the first one-way valve (903) and the second one-way valve (904). The first one-way valve (903) is connected to the air tube (902). The air tube (902) is fixedly laid on the wall of the side frame (6), and the end of the air tube (902) away from the first one-way valve (903) is fixedly connected to the air blowing ring shell (8). The top surface of the movable plate (1005) is fixedly connected to the bottom of the corrugated airbag (901).

9. A sampling method using the soil carbon storage measurement sampling mechanism according to any one of claims 1-8, characterized in that: The sampling method includes the following steps: Step 1: Extend the telescopic rod (7) to push the sampling tube (405) down. The sampling tube (405) passes through the air-blowing ring shell (8) on the chassis (1) and is inserted into the soil layer to achieve sampling. At the same time, the first spring (406) is stretched. Step 2: The telescopic rod (7) retracts, and the sampling tube (405) is reset by the elastic force of the first spring (406). The air outlet (801) of the air blowing ring shell (8) blows air onto the outer wall of the sampling tube (405). The attached dirt is blown off by the air pressure. Step 3: The rotary drive mechanism (3) drives all sampling components (4) to rotate, so that the sampling components (4) after sampling are moved to the bottom of the auxiliary feeding mechanism. The sample in the sampling components (4) after sampling is discharged through the auxiliary feeding mechanism, and the next sampling component (4) to be sampled moves to the telescopic rod (7) to wait for the next sampling.

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