Soil carbon reserve measurement sampling mechanism and sampling method

Abstract

The invention provides a soil carbon reserve measurement sampling mechanism and sampling method.The soil carbon reserve measurement sampling mechanism comprises a chassis and further comprises a plurality of sampling assemblies, the multiple sampling assemblies are distributed above the chassis in an annular array mode, and each sampling assembly comprises an elastically-installed sampling barrel; the side frame is fixedly mounted on the right side of the chassis, and a telescopic rod is fixedly mounted on the side frame; the auxiliary discharging mechanism is arranged behind the telescopic rod; a rotation driving mechanism; a hole body for the sampling barrel to penetrate through is formed in the surface of one side, close to the side frame, of the base plate, the air blowing ring shell is fixedly mounted in the hole body, and an annular air outlet is formed in the bottom of the air blowing ring shell. During multiple times of sampling, each time of sampling is completed by using one independent sampling assembly, so that mutual influence among different samples is avoided; after sampling is finished, blowing is provided through a blowing ring shell, dirt attached to the outer wall of the sampling barrel is blown away through airflow, and the automatic cleaning effect is achieved.

Description

Technical Field

[0001] The invention relates to the field of soil carbon reserve measurement, and in particular to a soil carbon reserve measurement sampling mechanism and a sampling method. Background Art

[0002] The measurement of soil carbon storage involves multiple steps, among which sampling is a crucial link. Soil sampling is carried out by a sampling mechanism, and then the soil samples are measured to screen out soil attribute factors that are significantly related to soil carbon storage, such as soil total nitrogen, total phosphorus and alkaline nitrogen content, as quantitative indicators of soil carbon storage.

[0003] When taking measurements and sampling, it is necessary to take samples at multiple different points in an area, and conduct comprehensive measurement and evaluation through multiple samples. However, after a single sampling, some soil may adhere to the inner and outer walls of the sampling structure of the traditional sampling mechanism. When the next sampling is carried out, the attached soil may enter the next sample, which will affect different samples and thus affect the measurement structure; further, after sampling, the sample is not easy to be discharged automatically, and there is a lack of a design for automatically discharging soil samples. Summary of the invention

[0004] In order to solve the technical problem that soil samples adhere to the inner and outer walls of a sampling tube, which may affect the next sampling result, the present invention provides a soil carbon reserve measurement sampling mechanism and a sampling method.

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

[0006] The present invention provides a soil carbon stock measurement sampling mechanism, comprising a chassis, wherein a plurality of support blocks distributed in a ring array are fixedly installed on the bottom edge of the chassis; further comprising: a sampling assembly, wherein the number of the sampling assemblies is multiple, and the plurality of sampling assemblies are distributed in a ring array above the chassis, the sampling assembly comprising an elastically mounted sampling barrel, and the sampling barrel can move vertically; a side frame, wherein the side frame is fixedly installed on the right side of the chassis, and a telescopic rod for pushing the sampling barrel downward is fixedly installed on the side frame; an auxiliary unloading mechanism, wherein the auxiliary unloading mechanism is arranged behind the telescopic rod; a rotary drive mechanism, wherein the rotary drive mechanism is used to drive the plurality of sampling assemblies to perform circular motion together, so that the plurality of sampling assemblies pass through the bottom of the telescopic rod and the bottom of the auxiliary unloading mechanism in sequence and in succession; an air blowing ring shell, wherein a hole body for the sampling barrel to pass through is arranged on a side disk surface of the chassis close to the side frame, the air blowing ring shell is fixedly installed in the hole body, and an annular air outlet is arranged at the bottom of the air blowing ring shell to blow away dirt attached to the outer wall of the sampling barrel after sampling.

[0007] In the present technical solution, when sampling is performed multiple times, each sampling is completed using an independent sampling assembly to avoid mutual influence between different samples; and after the sampling is completed, air is provided by the blowing ring shell, and the dirt attached to the outer wall of the sampling tube is blown away by the air flow, thereby achieving an automatic cleaning effect.

[0008] Preferably, the sampling assembly also includes a connecting strip, a guide sleeve and a guide column; the guide sleeve is fixedly mounted on the connecting strip, the guide column and the guide sleeve are connected with a clearance fit, the bottom end of the guide column is fixedly connected with a connecting seat, the connecting seat is fixedly connected to the top side wall of the sampling barrel, the top of the sampling barrel is elastically connected to the bottom surface of the connecting strip through a first spring, the top side wall of the sampling barrel is fixedly connected with a pressure seat, the interior of the sampling barrel is connected with a push plate, the push plate is elastically connected to the top inner wall of the sampling barrel through a second spring, and a push rod is fixedly connected to the top surface of the push plate, the push rod is connected with a clearance fit with a first through hole opened at the top of the sampling barrel, and the push rod passes through a second through hole opened on the connecting strip; a spherical surface is arranged on the top of the push rod.

[0009] In the technical solution, the sampling assembly takes samples through the sampling tube, and pushes the push plate through the 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 connected to 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 the 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 perform sampling in sequence and discharge the soil samples after sampling.

[0012] Preferably, the auxiliary unloading mechanism comprises a V-shaped arc block; both sides of the V-shaped arc block are provided with inclined surfaces for the top end of the push rod to walk 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 fixing frame.

[0013] In this technical solution, after the sampling assembly passes under the bottom of the auxiliary material discharging mechanism, the auxiliary material discharging mechanism provides extrusion for the push rod so that the push plate pushes out the soil sample.

[0014] Preferably, a lower hopper is provided below the V-shaped arc block, and the lower hopper is installed on the chassis, and a material receiving mechanism is provided below the chassis; the material receiving mechanism comprises a driving sprocket, a driven sprocket, a chain, a mounting frame, a sample tube, a second pulley, a third pulley and a second transmission belt; the driving sprocket and the driven sprocket are both rotatably mounted to the bottom of the chassis, the chain is wound around the driving sprocket and the driven sprocket, a plurality of mounting frames are fixedly installed at equal intervals on the outer ring of the chain, and sample tubes are arranged on the plurality of mounting frames, the driving sprocket is coaxially fixedly connected with the third pulley, the second pulley is fixedly sleeved with the bottom end of the rotating shaft of the rotating drive mechanism, and the second transmission belt is wound around the second pulley and the third pulley.

[0015] In the technical solution, the auxiliary unloading mechanism unloads the sampling assembly, and the soil sample falls into the unloading hopper and enters the receiving mechanism after passing through the unloading hopper.

[0016] Preferably, a embedding groove is provided on the chassis, the top of the lower hopper is embedded in the embedding groove, the front and rear sides of the lower hopper are fixedly connected with first embedding blocks, the front and rear groove walls of the embedding groove are provided with first side grooves, the first embedding block is inserted into the first side groove, the left side wall of the embedding groove is provided with a second side groove, the left side wall of the lower hopper is fixedly connected with a second embedding block, and the second embedding block is inserted into the second side groove, a third spring is fixedly installed in the second side groove, and the third spring is fixedly connected to the second embedding block.

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

[0018] Preferably, a vibration mechanism is provided in the side frame, and 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, and the movable plate is fixedly connected to the bottom end of the telescopic rod, the rack is meshingly connected to the cylindrical gear, the cylindrical gear is rotatably connected to the bottom end of the fixed bar, and the top end of the fixed bar is fixedly connected to the top inner side of the side frame, the top end of the rotating rod is fixedly sleeved with the second bevel gear, the second bevel gear is meshingly connected with the first bevel gear, the first bevel gear is coaxially fixed with 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 also includes a first transmission belt, a first pulley and a cam; there are two first pulleys, and the two first pulleys are rotatably installed inside the chassis, the first transmission belt is wound around the two first pulleys, one of the first pulleys is fixed to the bottom end of the rotating rod, and the other first pulley is fixed with a cam, and the cam is in contact with the right side wall of the lower hopper.

[0020] In this technical solution, the vibration mechanism provides vibration for the material discharge hopper to assist it in discharging materials.

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

[0022] In the technical solution, the inflation mechanism fills the blowing ring shell with gas, so that the air outlet of the blowing ring shell blows out air flow.

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

[0024] Step 1: Extend the telescopic rod to push the sampling tube downward, and the sampling tube passes through the blowing ring shell on the bottom plate and is inserted into the soil layer to achieve sampling, while stretching the first spring;

[0025] Step 2: The telescopic rod is retracted, and the sampling tube is reset by the elastic force of the first spring, and the air outlet of the blowing ring shell blows air to the outer wall of the sampling tube, and the attached dirt is blown off by the air pressure of the air flow;

[0026] Step three, the rotary drive mechanism drives all sampling components to rotate, so that the sampling components after sampling move to the bottom of the auxiliary unloading mechanism, and the samples in the sampling components after sampling are discharged through the auxiliary unloading mechanism, and the next sampling component to be sampled moves to the telescopic rod to wait for the next sampling.

[0027] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0028] The positive and progressive effects of the present invention are:

[0029] The soil carbon storage measurement sampling mechanism and sampling method proposed above, through the arrangement of multiple sampling components and a rotating drive mechanism, the rotating drive mechanism drives the multiple sampling components to perform circular motion to adjust the sampling position, that is, the sampling components at the telescopic rod. When sampling multiple times, it is ensured that each sampling is completed using an independent sampling component, and there is no interference between samples taken from different locations, thereby ensuring the measurement results; further, a blowing ring shell is provided, and after the sampling is completed, during the process of the sampling tube moving and resetting, the air outlet of the blowing ring shell blows air toward the outer wall of the sampling tube, and the attached dirt is blown away by the action of the air flow and air pressure. Automatic blowing away avoids the need for subsequent manual cleaning of the outer wall; further, an auxiliary unloading mechanism is provided, and the auxiliary unloading mechanism is provided 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 sampling component that has completed sampling moves to the auxiliary unloading mechanism. The soil sample can be automatically pushed out through the auxiliary unloading mechanism for automatic discharge, which provides convenience for sample removal; at the same time, the discharged soil sample is loaded into the receiving mechanism through the unloading hopper, and a vibration mechanism is provided at the unloading hopper to provide vibration unloading for the unloading hopper, so as to facilitate the discharge of the soil sample downward from the unloading hopper. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0031] Figure 2 It is a schematic diagram of the structure of the sampling assembly and the side frame of the present invention.

[0032] Figure 3 It is a schematic diagram of the structure inside the sampling tube of the present invention.

[0033] Figure 4 It is a schematic structural diagram of the blowing ring shell of the present invention.

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

[0035] Figure 6 For the present invention Figure 5 Schematic diagram of the structure with the A part in the middle enlarged.

[0036] Figure 7 It is a schematic structural diagram of the sampling assembly, V-shaped arc block and lower hopper of the present invention.

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

[0038] Fig. 9 It is a structural schematic diagram of the material receiving mechanism of the present invention.

[0039] Fig.10 It is a structural schematic diagram of the vibration mechanism and the lower hopper of the present invention.

[0040] Description of Reference Numerals

[0041] 1. chassis; 101. support block; 102. embedding groove; 103. first side groove; 104. second side groove;

[0042] 2. Fixed frame;

[0043] 3. Rotation drive mechanism; 301. Motor; 302. Rotating shaft; 303. Fixed sleeve;

[0044] 4. Sampling assembly; 401. Connecting strip; 402. Guide sleeve; 403. Guide column; 404. Connecting seat; 405. Sampling tube; 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 rod;

[0048] 8. Air blowing ring shell; 801. Air outlet;

[0049] 9. Inflating mechanism; 901. Corrugated airbag; 902. Air pipe; 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. lower hopper; 1101. first insert; 1102. second insert; 1103. third spring;

[0052] 12. Material receiving mechanism; 1201. Driving sprocket; 1202. Driven sprocket; 1203. Chain; 1204. Mounting frame; 1205. Sample tube; 1206. Second pulley; 1207. Third pulley; 1208. Second transmission belt. DETAILED DESCRIPTION

[0053] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0054] like Figure 1-10As shown, the soil carbon stock measurement sampling mechanism includes a chassis 1, and a plurality of support blocks 101 distributed in a circular array are fixedly installed on the bottom edge of the chassis 1; it also includes: a sampling assembly 4, the number of the sampling assemblies 4 is multiple, and the plurality of sampling assemblies 4 are distributed in a circular array above the chassis 1, the sampling assembly 4 includes an elastically mounted sampling barrel 405, and the sampling barrel 405 can move vertically; a 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 barrel 405 downward; an auxiliary unloading mechanism, The auxiliary unloading mechanism is arranged at the rear of the telescopic rod 7; the rotary driving mechanism 3, the rotary driving mechanism 3 is used to drive the multiple sampling components 4 to perform circular motion together, so that the multiple sampling components 4 pass through the bottom of the telescopic rod 7 and the bottom of the auxiliary unloading mechanism in sequence and successively; the blowing ring shell 8, the side surface of the chassis 1 close to the side frame 6 is provided with a hole body for the sampling tube 405 to pass through, the blowing ring shell 8 is fixedly installed in the hole body, and the bottom of the blowing ring shell 8 is provided with an annular air outlet 801 to blow away the dirt attached to the outer wall of the sampling tube 405 after sampling.

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

[0056] When a single sampling assembly 4 is used for sampling, Figure 2 As shown, the sampling assembly 4 is located at the telescopic rod 7, and the bottom end of the sampling tube 405 is aligned with the air blowing ring shell 8. The telescopic rod 7 is first in a retracted state, and the telescopic rod 7 is extended to push the pressure seat 407 through the movable plate 1005 to make the sampling tube 405 move downward, and the sampling tube 405 passes through the air blowing ring shell 8 and is inserted into the soil layer. In the above process, the first spring 406 is stretched and deformed, and the telescopic rod 7 is retracted and reset. The elastic force of the first spring 406 makes the sampling tube 405 leave the soil layer and return to the state as shown in the figure. Figure 2 Status shown.

[0057] In the above, during the up and down movement of the sampling tube 405, the guide is provided by the guide column 403 and the guide sleeve 402.

[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 in the side frame 6, and the inflation mechanism 9 includes a corrugated airbag 901, an air pipe 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, and 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 pipe 902, and the air pipe 902 is fixedly laid on the wall of the side frame 6, and the end of the air pipe 902 away from the first one-way valve 903 is fixedly connected to the 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 tube 405 moves downward, the bottom end of the corrugated airbag 901 moves downward along with the movable plate 1005 to stretch the corrugated airbag 901. The volume of the corrugated airbag 901 increases, and the outside air enters the corrugated airbag 901 through the second one-way valve 904.

[0061] When the sampling tube 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 the volume of the corrugated airbag 901 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 from the air outlet 801 to the outer wall of the sampling tube 405, where it is cleaned by the air flow to remove 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 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 on 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; the bottom of the motor 301 is fixedly connected to a fixed frame 2, 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 bottom of the auxiliary unloading mechanism through the rotating 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 the sampling components 4 to rotate, so that the sampling component 4 that has completed sampling is moved to the auxiliary unloading mechanism, and a sampling component 4 that has not yet sampled is moved to the position of the telescopic rod 7 to wait for the next sampling.

[0064] The motor 301 is preferably a servo motor 301 .

[0065] like Figure 7 As shown, the auxiliary unloading 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 end of the push rod 408 to walk 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 fixing frame 2.

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

[0067] Through the above, automatic discharge is achieved; when the next sampling assembly 4 moves to the telescopic rod 7, the sampling assembly 4 that completes the discharge remains as Figure 7 In the state shown, the sampling assembly 4 at the telescopic rod 7 completes sampling and moves toward the V-shaped arc block 5. The sampling assembly 4 that has discharged the material leaves the V-shaped arc block 5.

[0068] like Figure 8-9As shown in the figure, as a specific technical solution, a lower hopper 11 is arranged below the V-shaped arc block 5, and the lower hopper 11 is installed on the chassis 1, and a material receiving mechanism 12 is arranged below the chassis 1; the material receiving mechanism 12 includes a driving sprocket 1201, a driven sprocket 1202, a chain 1203, a mounting frame 1204, a sample tube 1205, a second pulley 1206, a third pulley 1207 and a second transmission belt 1208; the driving sprocket 1201 and the driven sprocket 1202 are both rotatably installed on the chassis 1 At the bottom, the chain 1203 is wound around the driving sprocket 1201 and the driven sprocket 1202, and a plurality of mounting frames 1204 are fixedly installed at equal intervals on the outer ring of the chain 1203, and a sample tube 1205 is provided on each of the plurality of mounting frames 1204. The driving sprocket 1201 is coaxially fixedly connected with a third pulley 1207, and the second pulley 1206 is fixedly sleeved with the bottom end of the rotating shaft 302 of the rotating drive mechanism 3, and 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 assembly 4 below the V-shaped arc block 5 falls into the lower hopper 11, and then falls into the sample tube 1205 of the material receiving mechanism 12 through the lower hopper 11 for collection.

[0070] The material receiving mechanism 12 has multiple sample tubes 1205, which correspond to multiple sampling components 4 one by one; when the rotating shaft 302 of the rotating drive mechanism 3 rotates and changes the sampling component 4 under the V-shaped arc block 5, the rotating shaft 302 will drive the second pulley 1206 to rotate, and transmit through the second transmission belt 1208, so that the third pulley 1207 and the active sprocket 1201 rotate, and cooperate with the driven sprocket 1202 to move the chain 1203 to adjust the position of the sample tube 1205, so that the sample tube 1205 corresponding to the sampling component 4 to be moved to the bottom of the V-shaped arc block 5 is moved to the bottom of the lower hopper 11. The above design ensures that the soil sample discharged by each sampling component 4 is collected through a separate sample tube 1205.

[0071] The sample tube 1205 and the mounting frame 1204 are detachably connected, such as by threads, so that the sample tube 1205 is detachable.

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

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

[0074] The vibration mechanism 10 also includes a first transmission belt 1008, a first pulley 1009 and a cam 1010; there are two first pulleys 1009, and the two first pulleys 1009 are rotatably installed 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, and the cam 1010 is in contact with the right side wall of the lower hopper 11.

[0075] The vibration mechanism 10 is provided to vibrate the lower hopper 11 so as to facilitate the downward discharge of the contents of the lower hopper 11 .

[0076] After the single sampling assembly 4 completes the discharge under the V-shaped arc block 5, it is still located under the V-shaped arc block 5. The discharged material is located in the lower hopper 11 and enters the material receiving pipe through the lower hopper 11. Part of the material adheres to the wall of the lower hopper 11. When the sampling assembly 4 located at the telescopic rod 7 performs sampling, the telescopic rod 7 needs to be extended and retracted, the movable plate 1005 moves up and down, the rack 1001 moves with the movable plate 1005, and the rack 1001 meshes with the cylindrical gear 1003, so that the cylindrical gear 1003 is 3 and the first bevel gear 1006 rotate together, and the first bevel gear 1006 is meshed with the second bevel gear 1007 to rotate the rotating rod 1004, and the rotating rod 1004 drives a first pulley 1009 to rotate, and the first transmission belt 1008 is used to transmit the other first pulley 1009 and the cam 1010 to rotate. When the cam 1010 rotates, it knocks and pushes the lower hopper 11; cooperate with the third spring 1103 to make the lower hopper 11 vibrate, so as to facilitate the discharge of the attached materials.

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

[0078] There is a spacing between the lower hopper 11 and the wall of the embedded groove 102, and the spacing allows the lower hopper 11 to have space for vibration. There is a spacing in the horizontal direction between the first side groove 103 and the first embedded block 1101, and there is a spacing in the horizontal direction between the second side groove 104 and the second embedded block 1102, which meets the vibration requirements of the lower hopper 11.

[0079] The sampling method comprises the following steps:

[0080] Step 1: Extend the telescopic rod 7 to push the sampling tube 405 downward, and the sampling tube 405 passes through the blowing ring shell 8 on the chassis 1 and is inserted into the soil layer to achieve sampling, while stretching the first spring 406;

[0081] Step 2: the telescopic rod 7 is retracted, and the sampling tube 405 is reset by the elastic force of the first spring 406, and the air outlet 801 of the air blowing ring shell 8 blows air to the outer wall of the sampling tube 405, and the attached dirt is blown off by the air pressure of the air flow;

[0082] Step three, 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 unloading mechanism, and the samples in the sampling components 4 after sampling are discharged through the auxiliary unloading mechanism, and the next sampling component 4 to be sampled moves to the telescopic rod 7 to wait for the next sampling.

[0083] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. A soil carbon storage measurement sampling mechanism, comprising a chassis (1), wherein a plurality of support blocks (101) distributed in a circular array are fixedly mounted on the bottom edge of the chassis (1); characterized in that: Also includes: A sampling assembly (4), wherein the number of the sampling assemblies (4) is plural, and the plurality of sampling assemblies (4) are distributed in a circular array above the bottom plate (1), and the sampling assembly (4) comprises a resiliently mounted sampling barrel (405), and the sampling barrel (405) can move vertically; A side frame (6), wherein the side frame (6) is fixedly mounted on the right side of the chassis (1), and a telescopic rod (7) for pushing the sampling tube (405) downward is fixedly mounted on the side frame (6); An auxiliary unloading mechanism, the auxiliary unloading mechanism being arranged behind the telescopic rod (7); A rotary drive mechanism (3), the rotary drive mechanism (3) being used to drive the plurality of sampling assemblies (4) to perform circular motion together, so that the plurality of sampling assemblies (4) pass under the telescopic rod (7) and under the auxiliary unloading mechanism in sequence and in succession; A blowing ring shell (8), a side surface of the chassis (1) close to the side frame (6) is provided with a hole body for the sampling tube (405) to pass through, the blowing ring shell (8) is fixedly installed in the hole body, and the bottom of the blowing ring shell (8) is provided with an annular air outlet (801) to blow away dirt attached to the outer wall of the sampling tube (405) after sampling.

2. The soil carbon storage measurement sampling mechanism according to claim 1, characterized in that: The sampling assembly (4) further comprises a connecting strip (401), a guide sleeve (402) and a guide column (403); the guide sleeve (402) is fixedly mounted on the connecting strip (401), the guide column (403) is connected to the guide sleeve (402) by a clearance fit, the bottom end of the guide column (403) is fixedly connected to a connecting seat (404), the connecting seat (404) is fixedly connected to the top side wall of the sampling barrel (405), the top end of the sampling barrel (405) is elastically connected to the bottom surface of the connecting strip (401) via a first spring (406), and the sampling barrel (405) is fixedly connected to the bottom surface of the connecting strip (401) by a first spring (406). 5) is fixedly connected with a pressure seat (407) on the top side wall, and a push plate (409) is connected to the inside of the sampling tube (405), and the push plate (409) is elastically connected to the top inner wall of the sampling tube (405) through a second spring (410), and a push rod (408) is fixedly connected to the top surface of the push plate (409), and the push rod (408) is connected with a first through hole opened at the top of the sampling tube (405) through a clearance, and the push rod (408) passes through a second through hole opened on the connecting strip (401); a spherical surface is arranged on the top of the push rod (408).

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

4. The soil carbon storage measurement sampling mechanism according to claim 3, characterized in that: The auxiliary unloading mechanism comprises a V-shaped arc block (5); both sides of the V-shaped arc block (5) are provided with inclined surfaces for the top end of the push rod (408) to walk 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 fixing frame (2).

5. The soil carbon storage measurement sampling mechanism according to claim 4, characterized in that: A material hopper (11) is provided below the V-shaped arc block (5), and the material hopper (11) is mounted on the chassis (1); a material receiving mechanism (12) is provided below the chassis (1); the material receiving mechanism (12) comprises a driving sprocket (1201), a driven sprocket (1202), a chain (1203), a mounting frame (1204), a sample tube (1205), a second pulley (1206), a third pulley (1207) and a second transmission belt (1208); the driving sprocket (1201) and the driven sprocket (1202) are both rotatably mounted on the bottom of the chassis (1), The chain (1203) is wound around a driving sprocket (1201) and a driven sprocket (1202); a plurality of mounting frames (1204) are fixedly mounted at equal intervals on the outer ring of the chain (1203); sample tubes (1205) are arranged on the plurality of mounting frames (1204); a third pulley (1207) is coaxially fixedly connected to the driving sprocket (1201); the second pulley (1206) is fixedly sleeved on the bottom end of the rotating shaft (302) of the rotating drive mechanism (3); and the second transmission belt (1208) is wound around the second pulley (1206) and the third pulley (1207).

6. The soil carbon storage measurement sampling mechanism according to claim 5, characterized in that: The chassis (1) is provided with an embedding groove (102), the top of the lower hopper (11) is embedded in the embedding groove (102), the front and rear sides of the lower hopper (11) are fixedly connected with first embedding blocks (1101), the front and rear groove walls of the embedding groove (102) are provided with first side grooves (103), the first embedding block (1101) is inserted into the first side groove (103), the left side wall of the embedding groove (102) is provided with a second side groove (104), the left side wall of the lower hopper (11) is fixedly connected with a second embedding block (1102), and the second embedding block (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 embedding block (1102).

7. The soil carbon storage measurement sampling mechanism according to claim 6, characterized in that: A vibration mechanism (10) is arranged in the side frame (6), and the vibration mechanism (10) comprises 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), the movable plate (1005) is fixedly connected to the bottom end of the telescopic rod (7), the rack (1001) is meshedly connected to the cylindrical gear (1003), and the cylindrical gear (1003) is meshedly connected to the cylindrical gear (1003). ) is rotatably connected to the bottom end of the fixed bar (1002), and the top end of the fixed bar (1002) is fixedly connected to the inner side of the top 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 meshingly connected with a first bevel gear (1006), the first bevel gear (1006) is coaxially fixedly connected to the cylindrical gear (1003), the rotating rod (1004) passes through a circular hole provided 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).

8. The soil carbon storage measurement sampling mechanism according to claim 7, characterized in that: The vibration mechanism (10) further comprises a first transmission belt (1008), a first pulley (1009) and a cam (1010); the number of the first pulleys (1009) is two, and the two first pulleys (1009) are both 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), and the cam (1010) is in contact with the right side wall of the lower hopper (11).

9. The soil carbon storage measurement sampling mechanism according to claim 7, characterized in that: An inflation mechanism (9) is arranged inside the side frame (6), and the inflation mechanism (9) comprises a corrugated airbag (901), an air pipe (902), a first one-way valve (903) and a second one-way valve (904); the top end 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 pipe (902), the air pipe (902) is fixedly laid on the wall of the side frame (6), and the end of the air pipe (902) away from the first one-way valve (903) is fixedly connected to the blowing ring shell (8); the top surface of the movable plate (1005) is fixedly connected to the bottom of the corrugated airbag (901).

10. A sampling method derived from the soil carbon storage measurement sampling mechanism according to any one of claims 1 to 9, characterized in that: The sampling method comprises the following steps: Step 1: Extend the telescopic rod (7) to push the sampling tube (405) downward, and the sampling tube (405) passes through the blowing ring shell (8) on the bottom plate (1) and is inserted into the soil layer to achieve sampling, while stretching the first spring (406); Step 2: the telescopic rod (7) is retracted, and the sampling tube (405) is reset by the elastic force of the first spring (406), and the air outlet (801) of the blowing ring shell (8) blows air to the outer wall of the sampling tube (405), and the attached dirt is blown off by the air pressure of the air flow; Step three, the rotary drive mechanism (3) drives all the sampling components (4) to rotate, so that the sampling components (4) after sampling are moved to the bottom of the auxiliary unloading mechanism, and the samples in the sampling components (4) after sampling are discharged through the auxiliary unloading mechanism, and the next sampling component (4) to be sampled is moved to the telescopic rod (7) to wait for the next sampling.

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