A sampling device for forestry ecological protection

Abstract

The present invention relates to the field of forestry sampling. The present invention discloses a sampling device for forestry ecological protection. The problem to be solved by the present invention is that the existing forestry protection sampling device samples the soil in the mud, and in wetlands, the water content in the mud is relatively high. When sampling the soil, the water contained in the soil will affect the detection effect of the soil. Moreover, when sampling multiple times, the inner wall of the pipeline of the sampler will leave the mud after the previous sampling, affecting the accuracy of sampling. By moving down and rotating in the sampling barrel through the discharge chuck, the present invention can scrape the soil remaining on the inner wall of the sampling barrel, thereby effectively cleaning the soil residue on the inner wall of the sampling barrel. When using the sampling equipment to sample the soil in other parts of the forestry, it can avoid the residue of the previous soil on the inner wall of the sampling barrel and improve the accuracy of subsequent detection of soil sampling.

Description

Technical Field

[0001] The present invention relates to the field of forestry sampling, and specifically to a sampling device for forestry ecological protection. Background Art

[0002] Forestry includes afforestation, forest cultivation, forest protection, forest harvesting and regeneration, collection and processing of wood and other forest products, etc. It refers to the production department that protects the ecological environment, maintains ecological balance, cultivates and protects forests to obtain wood and other forest products. Forestry can be divided into collective afforestation, individual afforestation, cooperative afforestation, and state-owned afforestation according to economic types, and can be classified into protection forests, timber forests, fuelwood forests, economic forests, other forests, etc. The growth trend of forestry ecology is closely related to soil composition. When studying forestry ecological soil, soil samples are taken using a sampler.

[0003] The existing patent (Publication No.: CN117664642B) discloses a sampling device for forestry ecological protection, including a vehicle frame and an internal detection mechanism. An excavation window is provided on the vehicle frame, and an electric telescopic rod is provided beside the excavation window on the vehicle frame. A suspension is installed at the output end of the electric telescopic rod, and a plurality of mounting columns are evenly distributed at the bottom of the suspension. A mounting plate is installed at the bottom of the plurality of mounting columns, and a sampling excavation device is installed on the mounting plate. The sampling excavation device includes a plurality of sampling excavation mechanisms and an adjustment mechanism. A cutting mechanism is installed on the sampling excavation mechanism, and two stable support mechanisms are provided on both sides of the vehicle frame. The present invention realizes multi-point soil sampling by cooperating the adjustment mechanism with a plurality of sampling excavation mechanisms, improves the accuracy and convenience of detection, and can strengthen the stability of the entire vehicle frame through four stable support mechanisms, reducing the tremors and vibrations generated during the operation of the entire device. During the implementation of the present invention, the inventor found that at least the following problems in the prior art have not been solved: The existing forestry protection sampling device samples the soil in the mud, and in wetlands, the water content in the mud is relatively high. When sampling the soil, the water in the soil will affect the detection effect of the soil, and when sampling multiple times, the inner wall of the pipeline of the sampler will leave the mud after the previous sampling, affecting the accuracy of sampling. Summary of the Invention

[0004] The purpose of the present invention is to provide a sampling device for forestry ecological protection to solve the problems raised in the above background art. To achieve the above purpose, the present invention provides the following technical solution: A sampling device for forestry ecological protection, including a provided support base, a fixed rod fixedly arranged correspondingly on the support base, a carrier frame slidably arranged on the fixed rod, a pushing electric cylinder fixedly arranged on the top of the support base, the telescopic end of the pushing electric cylinder being connected to the top of the carrier frame, a sampling bucket fixedly connected to the carrier frame, and a sampling device arranged on the carrier frame.

[0005] Preferably, the sampling device includes a driving motor fixedly arranged on the carrier frame. The main shaft of the driving motor is in transmission connection with a rotating outer cylinder. A driving rod is clamped and arranged at the bottom of the rotating outer cylinder, and the driving rod extends towards the inside of the sampling bucket.

[0006] Preferably, the sampling device further includes a positioning rod fixedly arranged on the carrier frame correspondingly. A sliding rod is also arranged on the carrier frame. A clamping sleeve is fixedly arranged on the sliding rod. A limiting groove is opened on the rotating outer cylinder. An elastic abutting block abuting against the limiting groove is arranged on the clamping sleeve. An outer ring frame is slidably arranged on the driving rod. A clamping frame is fixedly connected to the bottom of the sliding rod. The clamping frame and the outer ring frame are rotationally matched. A pressure spring is also sleeved on the sliding rod. Two ends of the pressure spring are respectively connected with the clamping sleeve and the carrier frame.

[0007] Preferably, the limiting groove on the rotating outer cylinder includes an arc groove and a vertical groove. Under the limitation of the arc groove and the vertical groove, the elastic abutting block drives the sliding rod to reciprocate on the carrier frame according to the rotation of the rotating outer cylinder.

[0008] Preferably, a clutch disc is fixedly connected to the driving rod. A rotating chuck is rotatably arranged in the sampling bucket. Three connecting rods are arranged around the circumference of the rotating chuck. The tops of the three connecting rods are fixedly connected with an annular connecting disc arranged annularly. The outer wall of the annular connecting disc and the inner wall of the clutch disc are in frictional cooperation. A discharge chuck is clamped and arranged on the inner wall of the rotating chuck. The discharge chuck is slidably matched with the inner wall of the sampling bucket. The outer wall of the discharge chuck is fixedly connected with the inner wall of the annular connecting disc.

[0009] Preferably, a discharge port is further arranged at the bottom of the sampling bucket. A switch member is arranged at the discharge port. The switch member includes a rotating disc rotatably arranged at the bottom of the sampling bucket. A fixed chuck is arranged at the discharge port. A plurality of arc-shaped fan blades are hinged around the circumference of the fixed chuck. When the plurality of arc-shaped fan blades are in a closed state, the discharge port arranged at the bottom of the sampling bucket is closed. A plurality of hinge frames corresponding to the arc-shaped fan blades are hinged around the circumference of the rotating disc. The other end of the hinge frame far away from the rotating disc is hinged and matched with the corresponding arc-shaped fan blade. A plurality of leakage holes are arranged on the plurality of arc-shaped fan blades.

[0010] Preferably, an arc-shaped through groove is opened on the inner wall of the sampling bucket. An installation block is fixedly connected to the outer wall of the rotating disc. An adjusting rod is fixedly connected to the installation block. The adjusting rod is located in the arc-shaped through groove. The rotating chuck is clamped and matched with the adjusting rod. The adjusting rod extends towards the top of the sampling bucket. The other end of the adjusting rod far away from the installation block is fixedly connected with an adjusting handle.

[0011] Preferably, a torsion rod is arranged in each of the fixing rods correspondingly arranged on the support base. The bottom of the torsion rod is spirally arranged. The top of the torsion rod is fixedly connected with a rotating handle. The outer wall of the torsion rod is in threaded cooperation with the inner wall of the fixing rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] In the present invention, when sampling the soil in forestry, the support base is placed on the land to be sampled. Subsequently, the pushing electric cylinder drives the carrier to press down, so that the sampling device arranged at the bottom of the carrier extends into the soil at the required sampling part. The sampling bucket on the sampling device continuously extends into the soil to make the soil enter the sampling bucket to take the soil. Subsequently, the driving motor drives the rotating outer cylinder to rotate. The initial position of the elastic abutting block is above the vertical groove in the limiting groove. When the rotating outer cylinder rotates, the arc groove on the rotating outer cylinder will contact the elastic abutting block, so that the elastic abutting block gradually drives the sleeve to move the sliding rod downward towards the bottom of the sampling bucket. The downward movement of the sliding rod drives the clamping frame to move downward. The downward movement of the clamping frame drives the driving rod to move downward at the bottom of the rotating outer cylinder. The clutch disc arranged at the bottom of the driving rod will gradually squeeze the annular connecting disc, so that the annular connecting disc moves towards the bottom of the sampling bucket. The discharging chuck arranged at the bottom of the annular connecting disc will squeeze the soil sampled in the sampling bucket towards the bottom of the sampling bucket, so that the soil sampled in the sampling bucket can be squeezed to the bottom of the sampling bucket. At this time, the soil in the sampling bucket will extrude a part of the moisture contained in the soil under the influence of the extrusion force, so that the sampled soil sample can maintain a certain humidity, and it is convenient to clean the detection container during the subsequent detection of the sampled soil, and it will not affect the detection due to the excessive humidity of the soil.

[0014] In the present invention, when the rotating outer cylinder rotates continuously, the inner wall of the clutch disc will be in frictional engagement with the inner wall of the annular connecting disc. Due to the continuous rotation of the rotating outer cylinder, the rotation of the rotating outer cylinder can drive the driving rod to rotate. When the driving rod rotates and the clutch disc rotates, it will drive the annular connecting disc to rotate. The annular connecting disc and the rotating chuck are connected by a connecting rod. Therefore, when the annular connecting disc rotates, it can synchronously drive the rotating chuck to rotate in the sampling bucket. When the rotating chuck rotates, the outer wall of the rotating chuck is in clamping engagement with the adjusting rod. Thus, it can drive the adjusting rod to deflect around the center of the sampling bucket. One end of the adjusting rod is connected to the rotating disc through a mounting block. Therefore, when the adjusting rod deflects around the center of the sampling bucket, the adjusting rod will drive the rotating disc to rotate. When the rotating disc rotates, the rotating disc will pull the hinge frame to move. At this time, the other end of the hinge frame will pull the arc-shaped fan blade plate hinged on the fixed chuck to move. At this time, several arc-shaped fan blade plates will expand outwards synchronously. Thus, the discharge port at the bottom of the sampling bucket can be opened, enabling the soil in the sampling bucket to be discharged from the discharge port. After the discharge port at the bottom of the sampling bucket is opened, the discharge chuck moves downward and can effectively discharge the soil at the bottom of the sampling bucket out of the discharge port by rotating. By the downward movement and rotation of the discharge chuck in the sampling bucket, the soil remaining on the inner wall of the sampling bucket can be scraped, effectively cleaning the soil residue on the inner wall of the sampling bucket. When using the sampling device to sample the soil in other parts of forestry, the residue of the previous soil on the inner wall of the sampling bucket can be avoided, improving the accuracy of subsequent soil sampling detection.

[0015] In the present invention, the leakage holes provided on several arc-shaped fan blade plates can enable the discharge chuck to discharge the excess water in the soil out of the sampling bucket when pressing downward in the sampling bucket. The adjusting grip provided at the top of the adjusting rod can enable the adjusting rod to drive the rotating disc to rotate. Therefore, when sampling the soil, the operator first drives the adjusting rod to move in the arc-shaped through groove through the adjusting grip provided at the top of the adjusting rod. At this time, when the adjusting rod drives the rotating disc to rotate, several arc-shaped fan blade plates will be opened, enabling the soil to enter the sampling bucket when the sampling bucket moves towards the soil driven by the pushing electric cylinder. The sampling bucket collects and processes the soil. After the soil enters the sampling bucket, the operator rotates the rotating disc continuously through the adjusting rod to retain the soil in the sampling bucket in the sampling bucket, facilitating the collection and processing of the sampled soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 is a partial three-dimensional structural cross-section Figure 1 ;

[0018] Figure 3 is a partial three-dimensional structural schematic Figure 2 ;

[0019] Figure 4 This is a partial three-dimensional structure schematic diagram of the sampling device of the present invention;

[0020] Figure 5 This is a sectional view of the partial three-dimensional structure of the present invention Figure 3 ;

[0021] Figure 6 This is an unfolded view of the partial three-dimensional structure of the present invention;

[0022] Figure 7 This is a three-dimensional structure schematic diagram of the switch part of the present invention.

[0023] In the figure: 1, support base; 11, fixed rod; 12, carrier frame; 13, push electric cylinder; 14, sampling bucket; 2, sampling device; 21, drive motor; 22, rotating outer cylinder; 23, drive rod; 24, positioning rod; 25, sliding rod; 26, ferrule; 27, limit groove; 28, arc groove; 29, vertical groove; 210, elastic abutting block; 211, outer ring frame; 212, clamping frame; 213, pressure spring; 214, clutch disc; 215, rotating chuck; 216, connecting rod; 217, annular connecting disc; 218, discharge chuck; 219, discharge port; 3, switch part; 31, rotating disc; 32, fixed chuck; 33, arc-shaped fan blade plate; 34, hinge frame; 35, arc-shaped through groove; 36, mounting block; 37, adjusting rod; 38, adjusting grip; 4, twisting rod; 41, rotating handle. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical staff in the art without creative work belong to the protection scope of the present invention.

[0025] Please refer to Figures 1 to 7 , the present invention provides a technical solution: a sampling device for forest ecological protection, including a set support base 1, a correspondingly fixedly arranged fixed rod 11 is arranged on the support base 1, a carrier frame 12 is slidably arranged on the fixed rod 11, a push electric cylinder 13 is fixedly arranged on the top of the support base 1, the telescopic end of the push electric cylinder 13 is connected to the top of the carrier frame 12, a sampling bucket 14 is fixedly connected to the carrier frame 12, and a sampling device 2 is arranged on the carrier frame 12.

[0026] In this embodiment, as Figure 1 , Figure 2 , Figure 3 ,Figure 4 , Figure 5 and Figure 6 As shown in ,

[0027] , the sampling device 2 includes a driving motor 21 fixedly arranged on the carrier 12. The main shaft of the driving motor 21 is in transmission connection with a rotating outer cylinder 22. A driving rod 23 is clamped at the bottom of the rotating outer cylinder 22 and extends towards the inside of the sampling barrel 14;

[0027] The sampling device 2 further includes a positioning rod 24 fixedly arranged on the carrier 12 correspondingly. A sliding rod 25 is also arranged on the carrier 12. A clamping sleeve 26 is fixedly arranged on the sliding rod 25. A limiting groove 27 is formed on the rotating outer cylinder 22. An elastic abutting block 210 abuting against the limiting groove 27 is arranged on the clamping sleeve 26. An outer ring frame 211 is slidably arranged on the driving rod 23. A clamping frame 212 is fixedly connected to the bottom of the sliding rod 25. The clamping frame 212 is rotationally matched with the outer ring frame 211. A compression spring 213 is also sleeved on the sliding rod 25. Two ends of the compression spring 213 are respectively connected with the clamping sleeve 26 and the carrier 12;

[0028] The limiting groove 27 on the rotating outer cylinder 22 includes an arc groove 28 and a vertical groove 29. The elastic abutting block 210 drives the sliding rod 25 to reciprocate on the carrier 12 according to the rotation of the rotating outer cylinder 22 under the limitation of the arc groove 28 and the vertical groove 29;

[0029] A clutch disc 214 is fixedly connected to the driving rod 23. A rotating chuck 215 is rotatably arranged in the sampling barrel 14. Three connecting rods 216 are arranged around the circumference of the rotating chuck 215. A ring-shaped connecting disc 217 is fixedly connected to the tops of the three connecting rods 216. The outer wall of the ring-shaped connecting disc 217 is in frictional cooperation with the inner wall of the clutch disc 214. A discharge chuck 218 is clamped on the inner wall of the rotating chuck 215. The discharge chuck 218 is slidably matched with the inner wall of the sampling barrel 14. The outer wall of the discharge chuck 218 is fixedly connected to the inner wall of the ring-shaped connecting disc 217;

[0030] When sampling the soil in forestry, place the support base 1 on the land to be sampled. Subsequently, drive the carrier frame 12 to press down through the set push electric cylinder 13, so that the sampling device 2 provided at the bottom of the carrier frame 12 extends into the soil at the required sampling part. The sampling bucket 14 on the sampling device 2 continuously extends into the soil to make the soil enter the sampling bucket 14 to take the soil. Subsequently, drive the rotating outer cylinder 22 to rotate through the drive motor 21. The initial position of the elastic abutting block 210 is above the vertical groove 29 in the limit groove 27. When the rotating outer cylinder 22 rotates, the arc groove 28 on the rotating outer cylinder 22 will contact the elastic abutting block 210, and then the elastic abutting block 210 gradually drives the clamping sleeve 26 to move the sliding rod 25 downward towards the bottom of the sampling bucket 14. The downward movement of the sliding rod 25 drives the clamping frame 212 to move downward. The downward movement of the clamping frame 212 drives the driving rod 23 to move downward at the bottom of the rotating outer cylinder 22. The clutch disc 214 provided at the bottom of the driving rod 23 will gradually squeeze the annular connection disc 217, and then the annular connection disc 217 moves towards the bottom of the sampling bucket 14. The discharge chuck 218 provided at the bottom of the annular connection disc 217 will squeeze the soil sampled in the sampling bucket 14 towards the bottom of the sampling bucket 14, so that the soil sampled in the sampling bucket 14 can be squeezed to the bottom of the sampling bucket 14. At this time, a part of the water contained in the soil will be squeezed out due to the influence of the extrusion force in the sampling bucket 14, so that the sampled soil sample can maintain a certain humidity, and it is convenient to clean the detection container during the subsequent detection of the sampled soil, and it will not affect the detection due to excessive humidity of the soil.

[0031] In this embodiment, as Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 shown, a discharge port 219 is further provided at the bottom of the sampling bucket 14. A switch member 3 is provided at the discharge port 219. The switch member 3 includes a rotating disc 31 rotatably provided at the bottom of the sampling bucket 14. A fixed chuck 32 is provided at the discharge port 219. A plurality of arc-shaped fan blades 33 are hinged around the circumference of the fixed chuck 32 on the fixed chuck 32. When the plurality of arc-shaped fan blades 33 are in a closed state, the discharge port 219 provided at the bottom of the sampling bucket 14 is closed. A plurality of hinge frames 34 corresponding to the arc-shaped fan blades 33 are hinged around the circumference of the rotating disc 31 on the rotating disc 31. The other end of the hinge frame 34 away from the rotating disc 31 is hinged and matched with the corresponding arc-shaped fan blade 33. A leakage hole is provided on each of the plurality of arc-shaped fan blades 33;

[0032] An arc-shaped through groove 35 is formed in the inner wall of the sampling bucket 14. A mounting block 36 is fixedly connected to the outer wall of the rotating disk 31. An adjusting rod 37 is fixedly connected to the mounting block 36. The adjusting rod 37 is located in the arc-shaped through groove 35. The rotary chuck 215 is in clamping fit with the adjusting rod 37. The adjusting rod 37 extends towards the top of the sampling bucket 14. The other end of the adjusting rod 37 away from the mounting block 36 is fixedly connected with an adjusting grip 38;

[0033] When the rotating outer cylinder 22 rotates continuously, the inner wall of the clutch disc 214 will be in frictional fit with the inner wall of the annular connecting disc 217. Due to the continuous rotation of the rotating outer cylinder 22, the rotation of the rotating outer cylinder 22 can drive the driving rod 23 to rotate. When the driving rod 23 rotates and the clutch disc 214 rotates, it will drive the annular connecting disc 217 to rotate. The annular connecting disc 217 and the rotary chuck 215 are connected by a connecting rod 216. Therefore, when the annular connecting disc 217 rotates, it can synchronously drive the rotary chuck 215 to rotate in the sampling bucket 14. When the rotary chuck 215 rotates, the outer wall of the rotary chuck 215 is in clamping fit with the adjusting rod 37. Thus, it can drive the adjusting rod 37 to deflect around the center of the sampling bucket 14. One end of the adjusting rod 37 is connected to the rotating disk 31 through the mounting block 36. Therefore, when the adjusting rod 37 deflects around the center of the sampling bucket 14, the adjusting rod 37 will drive the rotating disk 31 to rotate. When the rotating disk 31 rotates, the rotating disk 31 will pull the hinge frame 34 to move. At this time, the other end of the hinge frame 34 will pull the arc-shaped fan blade plate 33 hinged on the fixed chuck 32 to move. At this time, several arc-shaped fan blade plates 33 are synchronously unfolded outward. Thus, the discharge port 219 at the bottom of the sampling bucket 14 can be opened, so that the soil in the sampling bucket 14 can be discharged from the discharge port 219. After the discharge port 219 at the bottom of the sampling bucket 14 is opened, the discharge chuck 218 moves downward and can effectively discharge the soil at the bottom of the sampling bucket 14 out of the discharge port 219 by rotating. By the downward movement and rotation of the discharge chuck 218 in the sampling bucket 14, the soil remaining on the inner wall of the sampling bucket 14 can be scraped and swept. Thus, the soil residue on the inner wall of the sampling bucket 14 can be effectively cleaned. When using the sampling device 2 to sample the soil in other parts of the forestry, the residue of the previous soil on the inner wall of the sampling bucket 14 can be avoided, improving the accuracy of subsequent soil sampling detection;

[0034] The leakage holes formed in several arc-shaped fan blades 33 can discharge the excess water in the soil out of the sampling bucket 14 when the discharge chuck 218 presses downward in the sampling bucket 14. The adjusting grip 38 provided at the top of the adjusting rod 37 can drive the rotating disk 31 to rotate by the adjusting rod 37. Then, when sampling the soil, the operator first drives the adjusting rod 37 to move in the arc-shaped through groove 35 through the adjusting grip 38 provided at the top of the adjusting rod 37. At this time, when the adjusting rod 37 drives the rotating disk 31 to rotate, several arc-shaped fan blades 33 will be opened, so that when the sampling bucket 14 moves toward the soil driven by the pushing electric cylinder 13, the soil can enter the sampling bucket 14, and the soil is collected and processed through the sampling bucket 14. After the soil enters the sampling bucket 14, the operator rotates the rotating disk 31 continuously through the adjusting rod 37 to keep the soil in the sampling bucket 14 in the sampling bucket 14, which is convenient for collecting and processing the sampled soil.

[0035] In this embodiment, as Figure 1 shown, torsion rods 4 are arranged in the corresponding fixed rods 11 provided on the support base 1. The bottom of the torsion rod 4 is spirally arranged. The top of the torsion rod 4 is fixedly connected with a rotating handle 41. The outer wall of the torsion rod 4 is in threaded cooperation with the inner wall of the fixed rod 11;

[0036] When the support base 1 is placed at the soil where sampling is required, the operator rotates the rotating handle 41. The rotating handle 41 drives the torsion rod 4 to rotate. The spiral cooperation between the torsion rod 4 and the fixed rod 11 causes the torsion rod 4 to move downward toward the soil. The bottom of the torsion rod 4 will sink into the soil to limit and fix the support base 1, making the sampling device 2 more stable when sampling the soil.

[0037] The usage method and advantages of the present invention: The usage method of the sampling device for forestry ecological protection is as follows: The working process is as follows:

[0038] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 shown: When the support base 1 is placed at the soil where sampling is required, the operator rotates the rotating handle 41. The rotating handle 41 drives the torsion rod 4 to rotate. The spiral cooperation between the torsion rod 4 and the fixed rod 11 causes the torsion rod 4 to move downward toward the soil. The bottom of the torsion rod 4 will sink into the soil to limit and fix the support base 1, making the sampling device 2 more stable when sampling the soil;

[0039] The leakage holes formed in several arc-shaped fan blades 33 can drain the excess water in the soil out of the sampling bucket 14 when the discharge chuck 218 presses downward in the sampling bucket 14. The adjusting grip 38 provided at the top of the adjusting rod 37 can drive the rotating disk 31 to rotate by the adjusting rod 37. Then, when sampling the soil, the operator first drives the adjusting rod 37 to move in the arc-shaped through groove 35 through the adjusting grip 38 provided at the top of the adjusting rod 37. At this time, when the adjusting rod 37 drives the rotating disk 31 to rotate, several arc-shaped fan blades 33 will open. When the sampling bucket 14 moves into the soil driven by the pushing electric cylinder 13, the soil can enter the sampling bucket 14, and the soil is collected and processed through the sampling bucket 14. After the soil enters the sampling bucket 14, the operator rotates the rotating disk 31 continuously through the adjusting rod 37 to keep the soil in the sampling bucket 14 in the sampling bucket 14, which is convenient for collecting and processing the sampled soil;

[0040] When sampling the soil in forestry, place the support base 1 on the land to be sampled. Then, drive the carrier 12 to press down through the provided pushing electric cylinder 13, so that the sampling device 2 provided at the bottom of the carrier 12 extends into the soil at the required sampling position. The sampling bucket 14 on the sampling device 2 continuously extends into the soil to take the soil into the sampling bucket 14. Then, drive the rotating outer cylinder 22 to rotate through the drive motor 21. The initial position of the elastic abutting block 210 is above the vertical groove 29 in the limit groove 27. When the rotating outer cylinder 22 rotates, the arc-shaped groove 28 on the rotating outer cylinder 22 will contact the elastic abutting block 210. Then, the elastic abutting block 210 gradually drives the sleeve 26 to move the sliding rod 25 downward toward the bottom of the sampling bucket 14. The downward movement of the sliding rod 25 drives the clamping frame 212 to move downward. The downward movement of the clamping frame 212 drives the driving rod 23 to move downward at the bottom of the rotating outer cylinder 22. The clutch disk 214 provided at the bottom of the driving rod 23 will gradually press the annular connecting disk 217. Then, the annular connecting disk 217 moves toward the bottom of the sampling bucket 14. The discharge chuck 218 provided at the bottom of the annular connecting disk 217 will press the sampled soil in the sampling bucket 14 toward the bottom of the sampling bucket 14. Then, the sampled soil in the sampling bucket 14 can be extruded to the bottom of the sampling bucket 14. At this time, part of the water contained in the soil in the sampling bucket 14 will be extruded under the influence of the extrusion force, so that the sampled soil sample can maintain a certain humidity, and it is convenient to clean the detection container during the subsequent detection of the sampled soil, and it will not affect the detection due to the excessive humidity of the soil;

[0041] When the rotating outer cylinder 22 continues to rotate, frictional engagement occurs between the inner wall of the clutch disc 214 and the inner wall of the annular connecting disc 217. Due to the continuous rotation of the rotating outer cylinder 22, the rotation of the rotating outer cylinder 22 can drive the drive rod 23 to rotate. When the drive rod 23 rotates and causes the clutch disc 214 to rotate, it will drive the annular connecting disc 217 to rotate. The annular connecting disc 217 is connected to the rotating chuck 215 through a connecting rod 216. Therefore, when the annular connecting disc 217 rotates, it can synchronously drive the rotating chuck 215 to rotate within the sampling bucket 14. When the rotating chuck 215 rotates, the outer wall of the rotating chuck 215 is in clamping engagement with the adjusting rod 37, and thus can drive the adjusting rod 37 to deflect around the center of the sampling bucket 14. One end of the adjusting rod 37 is connected to the rotating disc 31 through a mounting block 36. Therefore, when the adjusting rod 37 deflects around the center of the sampling bucket 14, the adjusting rod 37 will drive the rotating disc 31 to rotate. When the rotating disc 31 rotates, the rotating disc 31 will pull the hinge frame 34 to move. At this time, the other end of the hinge frame 34 will pull the arc-shaped fan blade plate 33 hinged on the fixed chuck 32 to move. At this time, several arc-shaped fan blade plates 33 will expand outward synchronously, and thus can open the discharge port 219 at the bottom of the sampling bucket 14, enabling the soil in the sampling bucket 14 to be discharged from the discharge port 219. After the discharge port 219 at the bottom of the sampling bucket 14 is opened, at this time, the discharge chuck 218 moves downward and can effectively discharge the soil at the bottom of the sampling bucket 14 out of the discharge port 219 through rotation. By the downward movement and rotation of the discharge chuck 218 within the sampling bucket 14, the soil remaining on the inner wall of the sampling bucket 14 can be scraped, and thus the soil residue on the inner wall of the sampling bucket 14 can be effectively cleaned. When using the sampling device 2 to sample the soil in other parts of the forestry, the residue of the previous soil can be avoided from being contained on the inner wall of the sampling bucket 14, improving the accuracy of subsequent soil sampling detection.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for forestry ecological protection, characterized in that: The invention comprises a support base (1), the support base (1) is provided with a corresponding fixed rod (11), a support frame (12) is slidably provided on the fixed rod (11), a pushing electric cylinder (13) is fixedly provided on the top of the support base (1), the telescopic end of the pushing electric cylinder (13) is connected to the top of the support frame (12), a sampling barrel (14) is fixedly connected to the support frame (12), and a sampling device (2) is provided on the support frame (12); The sampling device (2) comprises a driving motor (21) fixedly mounted on a carrier (12); the main shaft of the driving motor (21) is drivingly connected to a rotating outer cylinder (22); a driving rod (23) is clamped at the bottom of the rotating outer cylinder (22), and the driving rod (23) extends toward the inside of the sampling barrel (14); The sampling device (2) further comprises a positioning rod (24) fixedly arranged on the supporting frame (12), a sliding rod (25) is further arranged on the supporting frame (12), a clamping sleeve (26) is fixedly arranged on the sliding rod (25), a limiting groove (27) is provided on the rotating outer cylinder (22), an elastic stopper (210) abutting against the limiting groove (27) is arranged on the clamping sleeve (26), an outer ring frame (211) is slidably arranged on the driving rod (23), a clamping frame (212) is fixedly connected to the bottom of the sliding rod (25), the clamping frame (212) and the outer ring frame (211) are rotatably matched, and a pressure spring (213) is further sleeved on the sliding rod (25), and two ends of the pressure spring (213) are respectively connected to the clamping sleeve (26) and the supporting frame (12); A clutch disk (214) is fixedly connected to the driving rod (23); a rotating chuck (215) is rotatably arranged in the sampling barrel (14); three connecting rods (216) are arranged around the circumference of the rotating chuck (215); an annular connecting disk (217) is fixedly connected to the top of the three connecting rods (216); an outer wall of the annular connecting disk (217) and an inner wall of the clutch disk (214) are frictionally engaged; a discharge chuck (218) is clamped on the inner wall of the rotating chuck (215); the discharge chuck (218) and the inner wall of the sampling barrel (14) are slidably engaged; and the outer wall of the discharge chuck (218) is fixedly connected to the inner wall of the annular connecting disk (217); The sampling barrel (14) is also provided with a discharge port (219) at the bottom thereof. A switch component (3) is provided at the discharge port (219). The switch component (3) comprises a rotating disk (31) rotatably provided at the bottom of the sampling barrel (14). A fixed chuck (32) is provided at the discharge port (219). A plurality of arc-shaped blade plates (33) are hingedly provided on the fixed chuck (32) around the circumference of the fixed chuck (32). When the plurality of arc-shaped blade plates (33) are in a closed state, the discharge port (219) provided at the bottom of the sampling barrel (14) is closed. A plurality of hinged frames (34) corresponding to the arc-shaped blade plates (33) are hingedly provided on the rotating disk (31) around the circumference of the rotating disk (31). The other end of the hinged frame (34) away from the rotating disk (31) is hingedly matched with the corresponding arc-shaped blade plates (33). Leakage holes are provided on the plurality of arc-shaped blade plates (33). An arc-shaped through-groove (35) is provided on the inner wall of the sampling barrel (14); a mounting block (36) is fixedly connected to the outer wall of the rotating disk (31); an adjusting rod (37) is fixedly connected to the mounting block (36); the adjusting rod (37) is located in the arc-shaped through-groove (35); and the rotating chuck (215) is engaged with the adjusting rod (37); When the rotating outer cylinder (22) rotates, the elastic stopper (210) gradually drives the clamping sleeve (26) to move the sliding rod (25) and the clamping frame (212) toward the bottom of the sampling cylinder (14), thereby driving the driving rod (23) to move downward at the bottom of the rotating outer cylinder (22), and the clutch disk (214) gradually squeezes the annular connecting disk (217); The rotation of the rotating outer cylinder (22) can drive the driving rod (23), the clutch disc (214), the annular connecting disc (217) and the rotating chuck (215) to rotate.

2. A sampling device for forestry ecological protection according to claim 1, characterized in that: The limiting groove (27) on the rotating outer cylinder (22) comprises an arc groove (28) and a vertical groove (29), and the elastic stop block (210) drives the sliding rod (25) to reciprocate on the carrier (12) according to the rotation of the rotating outer cylinder (22) under the restriction of the arc groove (28) and the vertical groove (29).

3. A sampling device for forestry ecological protection according to claim 1, characterized in that: The adjusting rod (37) extends toward the top of the sampling barrel (14), and the other end of the adjusting rod (37) away from the mounting block (36) is fixedly connected to an adjusting handle (38).

4. A sampling device for forestry ecological protection according to claim 1, characterized in that: A torsion rod (4) is arranged inside each of the fixed rods (11) correspondingly arranged on the support base (1); the bottom of the torsion rod (4) is arranged in a spiral shape; the top of the torsion rod (4) is fixedly connected to a rotating handle (41); and the outer wall of the torsion rod (4) is threadedly matched with the inner wall of the fixed rod (11).

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