Soil environment-friendly detection and collection device

Abstract

The invention provides a soil environment-friendly detection and collection device, and relates to the technical field of soil detection and collection, the soil environment-friendly detection and collection device comprises a collection rod, the bottom end of the collection rod is a tip, and a plurality of collection cavities are formed in the side surface of the collection rod and are linearly arranged at intervals along the length direction of the collection rod; a collection door plate capable of blocking the opening of the collection cavity is rotatably mounted on the collection rod and is rotatably mounted at the opening of the collection cavity; when the acquisition door plate is rotationally opened, the opening direction of the acquisition door plate is opposite to the bottom end of the acquisition rod; and an adjusting structure is mounted on the collecting rod. According to the environment-friendly detection and collection device for the soil, the collection rod, the collection door plate and the adjusting structure are arranged, and an opening structure is formed when the collection door plate is opened, so that the collection rod is inserted into the soil at the corresponding depth of the inner wall of a hole to collect a sample; the soil sampling device can simultaneously sample soil at different depths of a sampling point, and is simple in structure and convenient to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of soil detection and collection, and in particular to a soil environmental protection detection and collection device. Background Art

[0002] Soil environmental monitoring refers to an important measure to understand the status of soil environmental quality. With the purpose of preventing and controlling soil pollution hazards, the dynamic analysis and determination of soil pollution degree and development trend is carried out; including the current status survey of soil environmental quality, the survey of regional soil environmental background values, the investigation of soil pollution accidents and the dynamic observation of polluted soil; soil environmental monitoring generally includes preparation, point layout, sampling, sample preparation, analysis and testing, evaluation and other steps. When sampling, it is usually necessary to select multiple sampling points and take samples at multiple sampling points respectively. When sampling at the sampling points, it is also necessary to sample soil at different depths. Soil is usually divided into different layers, and the soil characteristics of each layer are different. For example, the surface soil may contain more organic matter and microorganisms, while the deep soil may contain more minerals and water.

[0003] Most of the existing soil sampling devices use a tube to insert into the soil, then take out the tube, and then test the soil at different depths in the tube. However, when the tube is pulled out, if the soil is loose, the soil in the tube may fall down. In addition, when the tube is inserted into the soil, it may encounter tree roots, etc. The tree roots may squeeze the loose soil below under the squeezing effect of the end of the tube, so that part of the soil is compacted, which affects the judgment of the depth of the soil and affects the soil detection structure. Alternatively, a pit of suitable depth is directly dug at the sampling point, and then soil at different depths is collected. This method requires a lot of labor and high work intensity. Summary of the invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes a soil environmental protection detection and collection device.

[0005] The present invention provides a soil environmental detection and collection device, comprising a collection rod, the bottom end of the collection rod is a pointed tip, a plurality of collection cavities are provided on the side of the collection rod, the plurality of collection cavities are linearly spaced along the length direction of the collection rod, a collection door plate capable of blocking the opening of the collection cavity is rotatably mounted on the collection rod, and the collection door plate is rotatably mounted at the opening of the collection cavity; When the collecting door plate is rotated to open, the opening direction of the collecting door plate is opposite to the bottom end of the collecting rod; An adjusting structure is installed on the collection rod, and the adjusting structure can adjust the opening and closing of the collection door panel.

[0006] Preferably, the adjustment structure comprises a linkage rod, an adjustment rod and an adjustment handle; one end of the linkage rod is rotatably connected to the collection door panel, a telescopic hole slidably matched with the adjustment rod is provided on the top of the collection rod, a movable groove communicating with the telescopic hole is provided on the inner wall of the collection chamber, and the other end of the linkage rod is rotatably connected to the adjustment rod; The adjusting handle is fixedly mounted on the top end of the adjusting rod.

[0007] Preferably, two collecting handles are installed on the collecting rod, and positioning components are installed on the collecting handles. The collecting handles are symmetrically installed on the outer periphery of the top end of the collecting rod, and the positioning component can fix the position of the adjustment rod on the collecting rod.

[0008] Preferably, the positioning assembly includes a large head positioning pin and a return spring; a transverse slide groove slidably matched with the large head positioning pin is provided in the collection rod, a plurality of annular grooves are provided on the outer periphery of the adjustment rod, the small head end of the large head positioning pin can be inserted into the annular groove, the return spring is located in the transverse slide groove, and the two ends of the return spring respectively abut against the inner wall of the end of the transverse slide groove and the large head end of the large head positioning pin; One end of one of the collecting handles is rotatably threadedly connected to the collecting rod, and the end of the collecting handle penetrates into the transverse sliding groove and abuts against the big end of the big end positioning pin.

[0009] Preferably, a storage groove is provided on the outer circumference of the collecting rod, a shielding plate is slidably installed in the storage groove, the shielding plate can be stored in the storage groove, and the shielding plate can slide out of the storage groove; When the shielding plate extends out of the storage slot, the shielding plate can cover the top opening of the collection door panel; A driving structure is installed on the collecting rod, and the driving structure is used to drive the shielding plate to slide in the storage groove.

[0010] Preferably, the driving structure comprises an eccentric ejection block, a limit plate and a storage spring; the eccentric ejection block is sleeved on the adjustment rod, a rotating groove for rotationally cooperating with the eccentric ejection block is provided in the collection rod, the limit plate is fixedly connected to the shielding plate, a limit slide groove for slidingly cooperating with the limit plate is provided in the collection rod, and the two ends of the storage spring are respectively connected to the limit plate and the inner wall of the end of the limit slide groove; The adjusting rod is rotatably mounted with a sleeve, and the other end of the linkage rod is rotatably mounted on the sleeve.

[0011] Preferably, the eccentric ejection block can also move up and down in the rotating groove, and a lifting spring is installed in the rotating groove, and the two ends of the lifting spring are respectively against the bottom inner wall of the rotating groove and the top of the eccentric ejection block.

[0012] Preferably, the top of the collection door panel is a cutting edge.

[0013] Preferably, a cylinder is fixedly installed on one side of the limiting plate, the cylinder is located in the limiting slide groove, the output shaft of the cylinder is fixedly connected to the inner wall of the end of the limiting slide groove, an exhaust channel is opened on the baffle plate, the air inlet of the exhaust channel is connected with the cylinder, and the air outlet of the exhaust channel is located on the side of the baffle plate close to the collection door panel.

[0014] A soil environmental protection detection and collection device proposed by the present invention has the following beneficial effects: through the provided collection rod, collection door panel and adjustment structure, and through the opening structure formed when the collection door panel is opened, the soil at the corresponding depth of the inner wall of the hole in the soil where the collection rod is inserted is scraped and sampled, and soil of different depths at a sampling point can be sampled at the same time, and the structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a soil environmental protection detection and collection device proposed by the present invention; Figure 2 A cross-sectional view of a soil environmental protection detection and collection device proposed by the present invention; Figure 3 A soil environmental protection detection and collection device proposed by the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a structural cross-sectional view of a soil environmental protection detection and collection device proposed by the present invention when the collection door panel is closed; Figure 5 This is a structural cross-sectional view of a soil environmental protection detection and collection device proposed by the present invention when the collection door panel is opened; Figure 6 The present invention provides a schematic structural diagram of an adjusting rod, an eccentric ejection block, a shielding plate and a limiting plate in a soil environmental protection detection and collection device proposed by the present invention.

[0016] In the figure: 1. Collection rod; 2. Collection chamber; 3. Collection door panel; 4. Linking rod; 5. Adjustment rod; 6. Adjustment handle; 7. Collection handle; 8. Big head positioning pin; 9. Return spring; 10. Shielding plate; 11. Eccentric ejection block; 12. Limiting plate; 13. Storage spring; 14. Lifting spring; 15. Annular groove; 16. Cylinder; 17. Exhaust channel. DETAILED DESCRIPTION

[0017] Reference Figure 1-Figure 6The present invention proposes a soil environmental protection detection and collection device, including a collection rod 1, the bottom end of the collection rod 1 is a pointed tip, the collection rod 1 can be a columnar structure such as a cylindrical column or a rectangular column, and a length scale is engraved on the collection rod 1 along its length direction, so that the insertion depth of the collection rod 1 can be conveniently viewed, and a plurality of collection cavities 2 are opened on the side of the collection rod 1, and the plurality of collection cavities 2 are linearly arranged along the length direction of the collection rod 1, and the spacing can be set according to the collection needs. The spacing between two adjacent collection cavities 2 on the collection rod 1 is 15 cm, and a collection door panel 3 capable of blocking the opening of the collection cavity 2 is rotatably installed on the collection rod 1, and the collection cavity 2 The inner wall of the bottom should be lower than the position of the rotation connection of the collection door plate 3 on the collection rod 1. The collection door plate 3 is rotatably installed at the opening of the collection chamber 2. When the collection door plate 3 blocks the opening of the collection chamber 2, the collection door plate 3 and the appearance of the collection rod 1 are flush. When inserted into the soil, the protrusion of the collection door plate 3 avoids scraping the soil on the side wall, thereby reducing interference with soil sample collection (when the collection door plate 3 is rotated to open and soil samples are collected, the collection door plate 3 has a tendency to continue to open due to the resistance of the soil, which is convenient for collecting soil samples). When the collection door plate 3 is rotated to open, the opening direction of the collection door plate 3 is aligned with the bottom end of the collection rod 1. On the contrary, the top of the collection door panel 3 is a cutting edge, which can better shovel the soil. An adjustment structure is installed on the collection rod 1, and the adjustment structure can adjust the switch of the collection door panel 3. When it is used, the staff first selects several sampling points on the land, drives the collection door panel 3 to block the opening of the collection chamber 2 through the adjustment structure, and then places the collection rod 1 vertically on the ground, with the tip of the collection rod 1 facing the land, and then presses down the collection rod 1 hard to make the collection rod 1 insert into the soil at a suitable depth (assuming that the soil needs to be collected at three depths of 15cm, 30cm and 45cm, the collection rod 1 is inserted into the top collection door panel 3 in the soil The depth of the top position should be less than 15cm, less than 3cm), and then the collecting door panel 3 is rotated to open by adjusting the structure. The collecting door panel 3 rotates to squeeze the soil, and then the collecting rod 1 is pulled up (pulling height is 6cm). When the collecting rod 1 is pulled up, since the collecting door panel 3 is tilted and opened upward, the collecting door panel 3 scrapes the soil between 18-12cm on the inner wall of the soil hole. After the soil is scraped, it falls into the collecting chamber 2 under the influence of gravity, and then the collecting door panel 3 is closed, and then the collecting rod 1 is pulled up. Soil at different depths can be collected at the same time without interfering with each other. The operation is simple and convenient, and the labor intensity is low.

[0018] like Figure 2 , Figure 4 and Figure 5As shown in, the adjustment structure includes a linkage rod 4, an adjustment rod 5 and an adjustment handle 6; one end of the linkage rod 4 is rotatably connected to the collection door panel 3, a telescopic hole is provided on the top of the collection rod 1 to slide with the adjustment rod 5, and a movable groove is provided on the inner wall of the collection chamber 2 to communicate with the telescopic hole. The other end of the linkage rod 4 is rotatably connected to the adjustment rod 5, and the adjustment handle 6 is fixedly installed on the top of the adjustment rod 5. When adjusting the opening of the collection door panel 3, the staff grasps the adjustment handle 6 and presses it down hard, and the adjustment handle 6 drives the adjustment rod 5 to drop synchronously. When the adjustment rod 5 drops, the end of the linkage rod 4 will be driven to drop synchronously. Since the adjustment rod 5 cannot move laterally in the collection rod 1, when the adjustment rod 5 drops, the linkage rod 4 follows the drop of the adjustment rod 5 and props up the collection door panel 3 (the opening state of the collection door panel 3 is shown in FIG. Figure 5 As shown in the figure, the collecting door panel 3 is propped open to complete the collection operation of the deep soil; when the collecting door panel 3 needs to be closed, the adjusting handle 6 is grasped and lifted upward to drive the adjusting rod 5 to rise in the collecting rod 1, and the adjusting rod 5 drives the connecting rod 4 to reset, and the connecting rod 4 drives the collecting door panel 3 to rotate and reset, and the collecting door panel 3 blocks the opening of the collecting chamber 2, and then the collecting rod 1 is pulled out of the soil, and the collected soil sample is poured out for detection; two or more collecting chambers 2 are symmetrically arranged on the periphery of the collecting rod 1 at the same height on the collecting rod 1, so that multiple samples of soil at the same sampling point and the same depth can be collected for comparative analysis and mutual verification.

[0019] like Figure 1 and Figure 2 As shown, two collecting handles 7 are also installed on the collecting rod 1. When pulling up the collecting rod 1, the staff can grab the collecting handles 7 to pull up the collecting rod 1, which can save the staff's effort and improve work efficiency. A positioning assembly is installed on the collecting handle 7, and the collecting handle 7 is symmetrically installed on the top periphery of the collecting rod 1. The positioning assembly can fix the position of the adjusting rod 5 on the collecting rod 1. When the collecting rod 1 is pulled up after collecting the soil sample, the collecting door panel 3 needs to be fixed to prevent the collecting door panel 3 from opening, thereby preventing the high-position soil from being shoveled into the collecting chamber 2 by the collecting door panel 3 when the collecting rod 1 is pulled up. Therefore, it is necessary to fix the position of the adjusting rod 5 by the positioning assembly, thereby fixing the position of the collecting door panel 3, ensuring that when the collecting rod 1 is pulled up, the soil at other positions will not enter the collecting chamber 2, and ensuring the accuracy of soil sample detection.

[0020] like Figure 2 and Figure 3As shown in, the positioning assembly includes a large head positioning pin 8 and a return spring 9; a transverse slide groove is provided in the collection rod 1, and a plurality of annular grooves 15 are provided on the outer periphery of the adjusting rod 5, and the small head end of the large head positioning pin 8 can be inserted into the annular groove 15, and the return spring 9 is located in the transverse slide groove, and the two ends of the return spring 9 are respectively against the inner wall of the end of the transverse slide groove and the large head end of the large head positioning pin 8; one end of one of the collection handles 7 is rotatably threadedly connected with the collection rod 1, and the end of the collection handle 7 penetrates into the transverse slide groove and abuts against the large head end of the large head positioning pin 8. During the specific operation, one of the collection handles 7 can be rotated so that the end of the collection handle 7 pushes the large head positioning pin 8 to slide in the transverse slide groove, and drives the small head end of the large head positioning pin 8 to be inserted into the annular groove 15 on the outer periphery of the adjusting rod 5, thereby clamping the adjusting rod 5, fixing the position of the collection door panel 3, and completely closing the opening of the collection chamber 2.

[0021] In actual situations, for example, when collecting clay with high humidity, after the collecting door panel 3 shovels away the soil on the inner wall of the hole in the soil where the collecting rod 1 is inserted, some clay may stick to the cutting edge of the collecting door panel 3, and this clay will be placed between the collecting door panel 3 and the inner wall of the opening of the collecting chamber 2, making it impossible for the collecting door panel 3 to be completely closed. In this way, when the collecting rod 1 is pulled up, high-level soil may enter the collecting chamber 2, interfering with the collected soil sample and affecting the soil detection results. Therefore, the following design is provided.

[0022] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6As shown in the figure, a storage groove is provided on the outer periphery of the collection rod 1, and a shielding plate 10 is slidably installed in the storage groove. The shielding plate 10 can be stored in the storage groove, and the shielding plate 10 can slide out of the storage groove; when the shielding plate 10 is extended out of the storage groove, the shielding plate 10 can cover the top opening of the collection door panel 3; a driving structure is installed on the collection rod 1, and the driving structure is used to drive the shielding plate 10 to slide in the storage groove. After collecting the soil sample, the collection door panel 3 will be closed. However, due to the adhesion of clay to the cutting edge of the collection door panel 3, the collection door panel 3 cannot be completely closed. Therefore, the shielding plate 10 is driven by the driving structure to extend out of the storage groove to cover the cutting edge of the collection door panel 3. When the collection rod 1 is pulled up, the shielding plate 10 blocks the cutting edge of the collection door panel 3, and the collection door panel 3 is closed. The sticky soil will not be affected by external forces and will always be stuck at the cutting edge of the collection door panel 3. There will be no other soil squeezing the soil at this position, which can reduce the entry of other soil into the collection chamber 2, thereby ensuring the accuracy of the soil detection results. In actual use, the baffle plate 10 is inclined, and the acute angle formed between the baffle plate 10 and the collection rod 1, the acute angle opening faces downward (that is, the cutting edge of the collection door panel 3 is located in the acute angle). When the collection rod 1 is pulled out, the soil on the inner wall of the hole contacts the inclined surface of the baffle plate 10, reducing resistance and facilitating the removal of the collection rod 1. In addition, when the inclined baffle plate 10 contacts the soil on the inner wall of the hole, it smoothes it from bottom to top and squeezes the soil to the side, reducing the possibility of scraping off the soil on the inner wall of the hole, thereby reducing the entry of soil into the collection chamber 2.

[0023] like Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown in the figure, the driving structure includes an eccentric ejection block 11, a limit plate 12 and a storage spring 13; the eccentric ejection block 11 is sleeved on the adjusting rod 5, a rotating groove that rotates with the eccentric ejection block 11 is provided in the collecting rod 1, the limit plate 12 is fixedly connected to the shielding plate 10, and a limit slide groove that slides with the limit plate 12 is provided in the collecting rod 1. The two ends of the storage spring 13 are respectively connected to the limit plate 12 and the inner wall of the end of the limit slide groove. The sleeve is rotated on the adjusting rod 5, and the other end of the linkage rod 5 is rotatably installed on the sleeve. In specific operation, you only need to grasp the adjusting handle 6 and rotate it. That is, the adjusting handle 6 drives the adjusting rod 5 and the eccentric ejection block 11 to rotate synchronously. When the eccentric ejection block 11 rotates, the inclined arc surface of the eccentric ejection block 11 slides with the end of the baffle plate 10, and the eccentric ejection block 11 pushes the baffle plate 10 to extend out of the storage groove and cover the cutting edge of the collection door panel 3, which is easy to operate; when storing the baffle plate 10, the adjusting handle 6 is rotated in the opposite direction to reset it. Under the rebound action of the storage spring 13, the limit plate 12 and the baffle plate 10 are driven to slide and reset, completing the storage of the baffle plate 10. Rotating the adjusting handle 6 makes it more convenient for the entire device to pull out the soil.

[0024] like Figure 2 , Figure 4 and Figure 5 As shown in the figure, the eccentric ejector block 11 can also move up and down in the rotating groove, and a lifting spring 14 is installed in the rotating groove. The two ends of the lifting spring 14 are respectively against the bottom inner wall of the rotating groove and the top of the eccentric ejector block 11. Because the eccentric ejector block 11 and the adjusting rod 5 are fixedly connected, the eccentric ejector block 11 will be driven to rise and fall synchronously when the adjusting rod 5 is lifted or lowered. In addition, since the eccentric ejector block 11 also needs to drive the baffle plate 10 to extend out of the storage groove, the thickness of the eccentric ejector block 11 needs to be designed to ensure that the end of the baffle plate 10 always rests on the outer peripheral arc surface of the eccentric ejector block 11, thereby ensuring that the eccentric ejector block 11 can drive the baffle plate 10 to extend out of the storage groove.

[0025] like Figure 4 , Figure 5 and Figure 6 As shown in the figure, a cylinder 16 is fixedly installed on one side of the limit plate 12, and the cylinder 16 is located in the limit slide groove. The output shaft of the cylinder 16 is fixedly connected to the inner wall of the end of the limit slide groove. An exhaust channel 17 is opened on the baffle plate 10, and the air inlet of the exhaust channel 17 is connected with the cylinder 16. The air outlet of the exhaust channel 17 is located on the side of the baffle plate 10 close to the collection door plate 3. When the baffle plate 10 is driven to block the opening of the collection door plate 3, the baffle plate 10 will drive the limit plate 12 to move synchronously, and the limit plate 12 will drive the cylinder 16 to move synchronously. The output shaft of the cylinder 16 abuts against the inner wall of the limit slide groove to squeeze the gas in the cylinder 16, and the gas in the cylinder 16 is squeezed and discharged from the exhaust channel 17. The exhausted gas blows the soil in the gap between the collection door plate 3 and the collection rod 1, so that the soil between the gap is blown off, ensuring the sealing of the collection door plate 3 and reducing the possibility of sample contamination.

[0026] The main methods and steps for soil sample collection: Site planning: Determine the location of the sampling points based on the research purpose and soil type.

[0027] Use "S" shaped, zigzag shaped or serpentine routes to ensure that the sampling points are evenly and randomly distributed.

[0028] For field crops, a mixed sample of the tillage layer is usually collected every 150-300 mu.

[0029] Determine the sampling depth: Generally, the sampling depth is 0-50cm (15cm, 30cm, 45cm), and the specific depth is determined according to the thickness of the tillage layer and the crop type.

[0030] Determine sampling season and time: Soil samples are usually collected in late fall or early spring to analyze the soil nutrient supply.

[0031] If used to compare soil nutrient changes, soil samples should be collected within the same time period as much as possible.

[0032] Sampling method: A multi-point mixed soil sample collection method is adopted, and each mixed soil sample consists of 5-20 sampling points, and the specific number depends on the soil differences and area size.

[0033] The depth and weight of soil taken at each point should be uniform and consistent. Soil of different depths should be taken at the same point, and the ratio of the upper and lower layers should also be the same.

[0034] The sampling tool should be perpendicular to the ground and inserted into the soil to the specified depth to avoid disturbing the soil structure.

[0035] Sample handling and storage: After sampling, the samples should be promptly brought back to the laboratory for processing and storage.

[0036] During storage, avoid samples from being exposed to moisture, heat or contamination and keep them in their original state.

[0037] Record information: Record the geographical location, sampling depth, sampling time, sampler and other information of the sampling point to facilitate subsequent data analysis and tracking.

[0038] Sample size: Generally, about 0.1 kg is taken for each mixed sample. If the weight exceeds the limit, two portions can be taken diagonally and mixed using the quartering method.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A soil environmental protection detection and collection device, characterized in that: The collecting rod (1) comprises a collecting rod (1), the bottom end of the collecting rod (1) is a pointed tip, a plurality of collecting cavities (2) are provided on the side of the collecting rod (1), the plurality of collecting cavities (2) are linearly spaced along the length direction of the collecting rod (1), a collecting door plate (3) capable of blocking the opening of the collecting cavity (2) is rotatably mounted on the collecting rod (1), and the collecting door plate (3) is rotatably mounted at the opening of the collecting cavity (2); When the collecting door plate (3) is rotated to open, the opening direction of the collecting door plate (3) is opposite to the bottom end of the collecting rod (1); An adjustment structure is installed on the collection rod (1), and the adjustment structure can adjust the opening and closing of the collection door panel (3).

2. A soil environmental protection detection and collection device according to claim 1, characterized in that: The adjustment structure comprises a linkage rod (4), an adjustment rod (5) and an adjustment handle (6); one end of the linkage rod (4) is rotatably connected to the collection door panel (3); a telescopic hole slidably matched with the adjustment rod (5) is provided on the top of the collection rod (1); a movable groove communicating with the telescopic hole is provided on the inner wall of the collection chamber (2); and the other end of the linkage rod (4) is rotatably connected to the adjustment rod (5); The adjustment handle (6) is fixedly mounted on the top end of the adjustment rod (5).

3. A soil environmental protection detection and collection device according to claim 2, characterized in that: The collecting rod (1) is also provided with two collecting handles (7), and the collecting handles (7) are provided with positioning components. The collecting handles (7) are symmetrically mounted on the outer periphery of the top end of the collecting rod (1), and the positioning components are capable of fixing the position of the adjustment rod (5) on the collecting rod (1).

4. A soil environmental protection detection and collection device according to claim 3, characterized in that: The positioning assembly comprises a large head positioning pin (8) and a return spring (9); a transverse slide groove slidably matched with the large head positioning pin (8) is provided in the collection rod (1); a plurality of annular grooves (15) are provided on the outer periphery of the adjustment rod (5); the small head end of the large head positioning pin (8) can be inserted into the annular groove (15); the return spring (9) is located in the transverse slide groove; the two ends of the return spring (9) respectively abut against the inner wall of the end of the transverse slide groove and the large head end of the large head positioning pin (8); One end of one of the collecting handles (7) is rotatably threadedly connected to the collecting rod (1), and the end of the collecting handle (7) is inserted into the transverse sliding groove and abuts against the big end of the big end positioning pin (8).

5. A soil environmental protection detection and collection device according to claim 4, characterized in that: A receiving groove is provided on the outer periphery of the collecting rod (1), a shielding plate (10) is slidably mounted in the receiving groove, the shielding plate (10) can be received in the receiving groove, and the shielding plate (10) can be slidably extended out of the receiving groove; When the shielding plate (10) extends out of the storage slot, the shielding plate (10) can cover the top opening of the collection door panel (3); A driving structure is installed on the collecting rod (1), and the driving structure is used to drive the shielding plate (10) to slide in the storage groove.

6. A soil environmental protection detection and collection device according to claim 5, characterized in that: The driving structure comprises an eccentric ejection block (11), a limit plate (12) and a storage spring (13); the eccentric ejection block (11) is sleeved on the adjustment rod (5); a rotating groove for rotationally cooperating with the eccentric ejection block (11) is provided in the collection rod (1); the limit plate (12) is fixedly connected to the shielding plate (10); a limit slide groove for slidingly cooperating with the limit plate (12) is provided in the collection rod (1); and two ends of the storage spring (13) are respectively connected to the limit plate (12) and the inner wall of the end of the limit slide groove; A sleeve is rotatably mounted on the adjusting rod (5), and the other end of the linkage rod (5) is rotatably mounted on the sleeve.

7. A soil environmental protection detection and collection device according to claim 6, characterized in that: The eccentric ejection block (11) can also move up and down in the rotating groove. A lift spring (14) is installed in the rotating groove. The two ends of the lift spring (14) respectively abut against the bottom inner wall of the rotating groove and the top of the eccentric ejection block (11).

8. The soil environmental protection detection and collection device according to claim 1 is characterized in that: The top of the collection door panel (3) is a cutting edge.

9. A soil environmental protection detection and collection device according to claim 7, characterized in that: A cylinder (16) is fixedly mounted on one side of the limiting plate 12, the cylinder (16) being located in the limiting slide groove, the output shaft of the cylinder (16) being fixedly connected to the inner wall of the end of the limiting slide groove, the shielding plate (10) being provided with an exhaust passage (17), the air inlet of the exhaust passage (17) being in communication with the cylinder (16), and the air outlet of the exhaust passage (17) being located on a side of the shielding plate (10) close to the collection door plate (3).

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