Soil pollution detection device and detection method

Abstract

The invention discloses a soil pollution detection device and a detection method, and belongs to the field of soil detection. The device comprises a soil sampler and a soil detector, the soil sampler comprises a machine body, a sampling tube and a control assembly, and the soil detector comprises a data acquisition box, a power line matched with the data acquisition box and a detection probe fixedly connected with the power line; the sampling tube comprises a plurality of adjacent detection areas and cleaning areas, cleaning assemblies are arranged in the cleaning areas, moving assemblies for driving the detection probes to move are arranged between the detection areas and the cleaning areas, and transmission parts are arranged between the moving assemblies and the cleaning assemblies. Meanwhile, the detection probe moving downwards is cleaned through the cleaning roller, so that the soil in each detection area can be cleaned through the cleaning assembly before being detected, and the problem that residual substances in the soil of the previous depth can be adhered to the detection probe when the soil of the same position and different depths is detected is solved; the influence on the soil detection result is easily caused.

Description

Technical Field

[0001] This invention relates to the field of soil testing, and in particular to a soil pollution testing device and testing method. Background Technology

[0002] Soil pollution monitoring is an environmental monitoring activity that assesses the content of pollutants in soil, aiming to determine background levels and control soil environmental quality. Priority is given to monitoring inorganic pollutants such as mercury, cadmium, lead, arsenic, and copper; organic pollutants such as petroleum, organophosphorus pesticides, and polycyclic aromatic hydrocarbons; and bioactive substances such as pathogenic microorganisms. Trace analysis is performed using techniques such as spectrophotometry, atomic absorption spectrophotometry, and gas chromatography. The variation range of monitored values ​​is generally acceptable within 10%-20%.

[0003] For soil testing in deeper soil areas, the conventional method involves using a soil sampler to collect soil samples from a specific depth and then analyzing them using a soil testing instrument. However, this conventional method has the following drawbacks: (1) Conventional soil testing methods can only sample soil at a specified depth at a time, and then take out the soil and test it, or take out a section of soil at a specified location at once, and then take out and test it section by section according to different depths of the soil. Both methods are too complicated and it is difficult to achieve the effect of rapid testing at a time for soil at different depths in the same location.

[0004] (2) For soil testing at different depths at the same location, when the total depth of the test does not exceed the total length of the test probe, the conventional testing method is to insert the test probe into the soil section by section to achieve the test of soil at different depths. However, when testing the soil at the next depth, residual substances from the soil at the previous depth will adhere to the test probe, which may affect the results of the soil test. Summary of the Invention

[0005] This invention provides a soil pollution detection device and method, which can solve the problem that conventional soil detection methods are difficult to achieve rapid detection in one go when detecting soil at different depths in the same location.

[0006] Another objective of this invention is to provide a soil pollution detection device and method that can solve the problem that when detecting soil at different depths at the same location, residual substances from the soil at the previous depth will adhere to the detection probe when detecting soil at the next depth, which can easily affect the soil detection results.

[0007] One of the objectives of this invention is achieved through the following technical solution: In a first aspect, this application provides a soil pollution detection device, including a soil sampler and a soil detector. The soil sampler includes a body, a sampling tube, and a control component. The soil detector includes a data acquisition box, a power cord matched with the data acquisition box, and a detection probe fixedly connected to the power cord. The sampling tube includes multiple adjacent detection zones and cleaning zones. A cleaning component is provided in the cleaning zone. A moving component that drives the detection probe to move is provided between the detection zone and the cleaning zone. A transmission component is provided between the moving component and the cleaning component. The moving component drives the power cord and the detection probe to move within the sampling tube; The cleaning assembly includes multiple cleaning rollers. The transmission component drives the multiple cleaning rollers to rotate simultaneously. The moving component moves the detection probe into the cleaning area, and the multiple cleaning rollers wipe the surface of the detection probe.

[0008] A further aspect of the present invention is that: the control component includes a gasoline engine and an electric motor; a support platform is slidably provided on the body; a threaded rod is rotatably connected to the body via a bearing; the support platform is threadedly connected to the threaded rod; the electric motor is fixedly mounted on the body and its output end is fixedly connected to one end of the threaded rod; the sampling tube is located at the bottom of the support platform; the gasoline engine is fixedly mounted on the support platform and its output end is fixedly connected to the sampling tube; and the data acquisition box is fixedly mounted on the support platform.

[0009] A further aspect of the present invention is that: the moving component includes a threaded collar, a circular hole is provided in the middle of the inner wall between the detection area and the cleaning area, the threaded collar is sleeved in the circular hole, a ring gear is fixedly connected to the outer periphery of the threaded collar, the power cord sheath is configured as a threaded flexible tube, and the threaded flexible tube is threadedly connected to the threaded collar.

[0010] A further aspect of the present invention is that the cleaning assembly further includes a plurality of driven gears, each of which is fixedly mounted on the top of the cleaning roller, and a toothed belt that meshes with the driven gears is sleeved on the outer periphery of the plurality of driven gears.

[0011] A further aspect of the present invention is that: the transmission component includes a gear set; an inner groove is formed inside the inner wall between the cleaning area and the detection area; the gear set is fixedly installed in the inner groove; a main gear is rotatably provided inside the sampling tube; the main gear drives the gear set to run, thereby driving the ring gear and the driven gear to rotate; multiple main gears are fixedly connected to each other by a connecting rod; a servo motor is fixedly connected inside the sampling tube; and the output end of the servo motor is fixedly connected to one end of the connecting rod.

[0012] A further aspect of the present invention is that two elastic telescopic plates are fixedly installed at the bottom circular hole of the detection area, and one side of the elastic telescopic plate is set as an arc surface.

[0013] A further aspect of the present invention is that: the sampling tube is provided with a plurality of inlet ports communicating with the detection area, and two sealing plates that open and close simultaneously are provided in the inlet ports; a collection component is provided in the detection area; and an opening and closing component is provided on one side of the sealing plate. The opening and closing component drives the two sealing plates to move to both sides simultaneously, so that the sample inlet opens and the collection component moves outward. As the acquisition component moves outward, it collects samples from the outer periphery of the sampling tube into the detection area.

[0014] A further aspect of the present invention is that: the top and bottom of the sealing plate extend into the cleaning areas at the top and bottom of the detection area, respectively; the opening and closing assembly includes a drive motor located in the cleaning area at the top of the detection area; a telescopic rod is hinged to the top of the inner side of the two sealing plates; one end of the telescopic rod is rotatably connected to the bottom surface of the cleaning area via a connecting shaft; mutually meshing moving gears are fixedly connected to the two connecting shafts; a bracket is fixedly connected in the cleaning area; and the drive motor is fixedly mounted on the bracket and its output end is fixedly connected to one of the moving gears. Located in the clean area at the bottom of the detection area, two sealing plates are hinged to the bottom of the inner side with fixed rods, and the other end of the two fixed rods is provided with a hinge seat. The two fixed rods are movably hinged to the hinge seat.

[0015] A further aspect of the present invention is that: the acquisition component includes a movable rod and a scraper fixedly disposed on the outer periphery of the movable rod; both ends of the movable rod are slidably connected to the top and bottom of the detection area via sliding grooves; a slot is provided at the bottom of the detection area so that the bottom end of the movable rod extends into the cleaning area; a fixing plate is fixedly connected to one side of the hinge seat; the bottom end of the movable rod is rotatably connected to the fixing plate; a control motor is fixedly connected to the fixing plate; and the output end of the control motor is fixedly connected to the bottom end of the movable rod.

[0016] Secondly, this application provides a detection method for a soil pollution detection device, which is applied to the aforementioned soil pollution detection device. The detection method for the soil pollution detection device includes the following steps.

[0017] The drilling and sampling process involves the control component driving the sampling tube into the ground. Once the sampling tube reaches the designated position, it stops moving downwards and rotates in its original position. The opening and closing device drives the two sealing plates to move to both sides simultaneously, while also driving the acquisition component to move towards the sampling port so that the acquisition component can contact the soil around the sampling tube. The acquisition component collects the soil around the sampling tube into the detection area, and then the power cord is connected to the data acquisition box. The mobile detection system operates by moving the transmission components. Through the cooperation between the mobile components and the power cord, the power cord and the detection probe fixedly connected to the power cord move downwards, so that the detection probe contacts the soil in each detection area from high to low and performs detection on the soil in each detection area. The detection probe is cleaned after it has tested the soil in the first test area. As the probe continues to move downwards, it passes through the cleaning area, where the cleaning components clean the probe and remove the soil from the first test area. The probe is cleaned repeatedly as it continues to move downwards.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) In this invention, multiple detection zones are set sequentially from top to bottom in the sampling tube. After the sampling tube moves down to the designated position, the moving component and the power cord cooperate to drive the power cord and the detection probe to move down when the transmission component is running. During the downward movement of the detection probe, the soil collected in the detection zone is detected every time it passes through a detection zone, thereby achieving the effect of quickly detecting soil at different depths in the same location at one time. This solves the problem that conventional soil detection methods are difficult to achieve the effect of quick detection at one time for soil at different depths in the same location.

[0019] (2) When the detection probe finishes detecting the soil in the previous detection area and needs to move to the next detection area, it will enter the cleaning area between the two detection areas. During the process of the transmission component driving the detection probe to move downward, the transmission component drives one of the driven gears to rotate. Through the meshing connection between multiple driven gears and the toothed belt, it drives other driven gears to rotate, thereby driving multiple cleaning rollers to rotate at the same time. The cleaning rollers clean the detection probe that is moving downward, so that the soil in each detection area can be cleaned by the cleaning component before detection. This solves the problem that when detecting soil at different depths in the same location, the detection probe will be covered with residual substances from the previous depth of soil, which can easily affect the soil detection results.

[0020] (3) The present invention has multiple inlets on the sampling tube. When the sampling tube moves down to a specified depth, the control component drives the sampling tube to rotate. At the same time, the opening and closing component drives the two sealing plates to move to both sides. While the two sealing plates are moving, the collection component moves outward. During the movement of the collection component, the scraper scrapes the soil outside the sampling tube and transports it to the detection area. While the sampling tube is rotating, the collection component collects the soil, which can effectively reduce the entry of hard soil blocks or stones into the detection area, thereby effectively preventing the detection probe from being damaged by touching hard stones. Attached Figure Description

[0021] Figure 1 This is one of the structural schematic diagrams of the soil sampler and soil tester of the present invention; Figure 2 This is the second schematic diagram of the soil sampler and soil testing instrument of the present invention; Figure 3 This is a schematic diagram of the soil sampler and sampling tube structure of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the structure of section A; Figure 5 This is a front sectional view of the sampling tube of the present invention; Figure 6 This is a schematic diagram of the internal structure of the sampling tube of the present invention; Figure 7 This is a schematic diagram of the transmission component structure of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of section B in the middle; Figure 9 This is a schematic diagram of the cleaning component and the moving component of the present invention; Figure 10 This is a schematic diagram of the acquisition component and opening / closing component of the present invention; Figure 11 For the present invention Figure 10 Schematic diagram of the C-section structure.

[0022] In the diagram: 1. Soil sampler; 2. Soil tester; 3. Circular hole; 21. Data acquisition box; 22. Power cord; 221. Threaded hose; 23. Detection probe; 100. Body; 200. Sampling tube; 201. Detection area; 202. Cleaning area; 203. Elastic telescopic plate; 204. Sample inlet; 205. Sealing plate; 300. Control components; 301. Gasoline engine; 302. Electric motor; 303. Support platform; 304. Threaded rod; 400. Cleaning components; 401. Cleaning roller; 402. From gear; 403, toothed belt; 500, moving component; 501, threaded collar; 502, ring gear; 600, transmission component; 601, gear set; 602, main gear; 603, servo motor; 604, connecting rod; 700, acquisition component; 701, movable rod; 702, scraper; 703, fixed plate; 704, control motor; 800, opening and closing component; 801, drive motor; 802, telescopic rod; 803, moving gear; 804, bracket; 805, fixed rod; 806, hinge seat; Detailed Implementation

[0023] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0024] Example 1

[0025] like Figures 1 to 5 As shown, an embodiment of the present invention provides a soil pollution detection device, including a soil sampler 1 and a soil detector 2. The soil sampler 1 includes a body 100, a sampling tube 200 and a control component 300. The soil detector 2 includes a data acquisition box 21, a power cord 22 matched with the data acquisition box 21, and a detection probe 23 fixedly connected to the power cord 22. The sampling tube 200 includes multiple adjacent detection zones 201 and cleaning zones 202. A cleaning component 400 is provided in the cleaning zone 202. A moving component 500 that drives the detection probe 23 to move is provided between the detection zone 201 and the cleaning zone 202. A transmission component 600 is provided between the moving component 500 and the cleaning component 400. The moving component 500 drives the power cord 22 and the detection probe 23 to move within the sampling tube 200; The cleaning component 400 includes multiple cleaning rollers 401. The transmission component 600 drives the multiple cleaning rollers 401 to rotate simultaneously. The moving component 500 drives the detection probe 23 to move into the cleaning area 202. The multiple cleaning rollers 401 wipe the surface of the detection probe 23.

[0026] The working principle of the above-mentioned soil pollution detection device is as follows: The sampling tube 200 is inserted into the soil at a designated location and deepened to a specified depth by the control component 300. After the sampling tube 200 reaches the designated depth, the drive component simultaneously drives the moving component 500 and the cleaning component 400. The moving component 500, through its interaction with the power cord 22, moves the power cord 22 and the detection probe 23 downwards. The detection probe 23 enters the first detection zone 201 and detects the soil in the first detection zone 201. After detection, the moving component 500 continues to move the detection probe 23 downwards, at which point the detection probe 23 enters the cleaning zone 202. The cleaning component 400 then cleans the outer periphery of the detection probe 23, removing any remaining soil from the first detection zone 201 and preventing contamination from the same location. When testing soil at different depths, residual substances from the soil at the previous depth may adhere to the probe, potentially affecting the test results. The cleaned probe 23 is continuously moved downwards by the moving component 500 to test the soil in the second testing area 201. This process continues until the soil in the bottom testing area 201 of the sampling tube 200 is tested. To facilitate the entry and storage of the power cord 22 inside the sampling tube 200, an openable storage compartment is provided at the top of the sampling tube 200. This compartment allows the power cord 22 to be stored before the soil sampler 1 begins operation. Simultaneously, the interface connecting the power cord 22 to the data acquisition box 21 is located outside the storage compartment, ensuring the power cord 22 connects to the data acquisition box 21 after the sampling tube 200 enters the ground for testing.

[0027] Conventional soil pollution detection methods involve inserting a probe segment by segment downwards to detect soil at different depths. However, when testing at a lower depth, residual substances from the previous depth adhere to the probe, potentially affecting the test results. In contrast, this application addresses this issue by having the probe 23 enter a cleaning zone 202 between testing zones 201 before moving to the next. Multiple cleaning rollers 401 clean the probe as it moves downwards, ensuring that the probe is cleaned before testing each zone. This solves the problem of residual substances adhering to the probe at different depths affecting the test results when testing at the same location.

[0028] See also Figures 1 to 2As shown, in order to facilitate the insertion of the sampling tube 200 into the ground for soil sampling, the control component 300 includes a gasoline engine 301 and an electric motor 302. A support platform 303 is slidably provided on the body 100. A threaded rod 304 is rotatably connected to the body 100 through a bearing. The support platform 303 is threadedly connected to the threaded rod 304. The electric motor 302 is fixedly installed on the body 100 and its output end is fixedly connected to one end of the threaded rod 304. The sampling tube 200 is located at the bottom of the support platform 303. The gasoline engine 301 is fixedly installed on the support platform 303 and its output end is fixedly connected to the sampling tube 200. The data acquisition box 21 is fixedly installed on the support platform 303. The electric motor 302 drives the threaded rod 304 to rotate. Through the threaded connection between the threaded rod 304 and the support platform 303, and the sliding connection between the support platform 303 and the machine body 100, the support platform 303 is moved downward. At the same time, the gasoline engine 301 runs, causing the sampling tube 200 to rotate, thereby driving the sampling tube 200 into the ground to a specified depth. In order to facilitate the driving of the sampling tube 200 into the ground, a soil-breaking cone is installed at the bottom of the sampling tube 200. The soil-breaking cone is installed at the bottom of the sampling tube 200 by threads.

[0029] See also Figures 7 to 8 As shown, in order to achieve the simultaneous operation of the moving component 500 and the cleaning component 400, that is, to clean the detection probe 23 during the downward movement of the detection probe 23, the transmission component 600 includes a gear set 601. An inner groove is opened in the inner wall between the cleaning area 202 and the detection area 201. The gear set 601 is fixedly installed in the inner groove. A main gear 602 is rotatably installed in the sampling tube 200. The main gear 602 drives the gear set 803 601 to run, thereby driving the ring gear 502 and the driven gear 402 to rotate. Multiple main gears 602 are fixedly connected to each other through a connecting rod 604. A servo motor 603 is fixedly connected in the sampling tube 200. The output end of the servo motor 603 is fixedly connected to one end of the connecting rod 604. This application does not limit the specific number of gears in gear set 601, such as Figure 8As shown, the gear set 601 is composed of multiple meshing gears. The first gear meshes with the main gear 602 so that when the main gear 602 rotates, it drives the entire gear set 601. A connecting shaft is provided between the second gear and the driven gear 402 in the cleaning component 400, so that when the second gear rotates, it drives the cleaning component 400. At the same time, the second gear meshes with the ring gear 502 in the moving component 500, so that when the second gear rotates, it drives the moving component 500. The specific structure and working principle of the gear set 601 are existing technologies and will not be described in detail here. The servo motor 603 runs, driving the main gear 602 to rotate. Through the setting of the connecting rod 604 between the multiple main gears 602, the transmission components 600 at the top and bottom of each cleaning area 202 run simultaneously. The main gear 602 drives the gear set 803 601 to run, thereby driving the cleaning component 400 and the moving component 500 to run simultaneously.

[0030] See also Figures 8 to 9 As shown, in order to enable the detection probe 23 to move up and down in the sampling tube 200 to detect the soil in each detection zone 201, the moving component 500 includes a threaded collar 501. A circular hole 3 is provided in the middle of the inner wall between the detection zone 201 and the clean zone 202. The threaded collar 501 is fitted into the circular hole 3. A ring gear 502 is fixedly connected to the outer periphery of the threaded collar 501. The outer sheath of the power cord 22 is set as a threaded flexible hose 221. The threaded flexible hose 221 is threadedly connected to the threaded collar 501. The outer sheath of the power cord 22 is configured as a threaded flexible tube 221, and the threads on the surface of the threaded flexible tube 221 cooperate with the thread groove at the inner ring of the threaded collar 501 in the circular hole 3. That is, when the threaded collar 501 rotates, it drives the power cord 22 to move downward. When the transmission component 600 runs, it drives the gear 803 group 601 to rotate, thereby driving the ring gear 502 to rotate, and then driving the threaded collar 501 to rotate. Through the threaded connection between the threaded collar 501 and the threaded flexible tube 221 on the outer periphery of the power cord 22, the power cord 22 and the detection probe 23 fixedly connected to the power cord 22 move. As the detection probe 23 moves downward, it tests the soil collected in the detection area 201 each time it passes through a detection area 201, thereby achieving the effect of rapid detection of soil at different depths at the same location at one time. This solves the problem that conventional soil testing methods are difficult to achieve rapid detection at different depths at the same location at one time.

[0031] Before the detection probe 23 detects the soil in the detection area 201, the detection area 201 needs to be filled with soil. Since a circular hole 3 is located in the middle of the inner wall between the detection area 201 and the clean area 202, when soil is filled into the detection area 201, the soil will move towards the circular hole 3 and fall into the clean area 202 and even the next detection area 201 through the circular hole 3. Therefore, a corresponding barrier device is installed near the circular hole 3. The specific structure of the barrier device is not limited, such as... Figure 4 As shown, preferably, there are two elastic telescopic plates 203. Each elastic telescopic plate 203 has a movable plate and a fixed sleeve plate. One side of the movable plate is set as an arc surface, so that when the detection probe 23 contacts the arc surface of the two movable plates, it squeezes the two movable plates, causing the movable plates to be housed in the fixed sleeve plate, thereby opening the circular hole 3. When the detection area 201 is collecting data, the two movable plates are in contact, closing the circular hole 3. The specific structure and working principle of the elastic telescopic plate 203 are existing technologies and will not be described in detail here.

[0032] See also Figure 9 As shown, in order to ensure that the detection probe 23 does not adhere to the residual soil of the first detection area 201 when it reaches the second detection area 201 after the detection probe 23 has completed the detection in the first detection area 201, the cleaning assembly 400 also includes a plurality of driven gears 402. The plurality of driven gears 402 are all fixedly installed on the top of the cleaning roller 401, and the outer periphery of the plurality of driven gears 402 is fitted with a toothed belt 403 that meshes with the driven gears 402. The surface of the cleaning roller 401 is made of an elastic material. The moving component 500 moves the detection probe 23 into the cleaning area 202. The outer periphery and bottom of the detection probe 23 contact the surface of the cleaning roller 401. The transmission component 600 drives one of the driven gears 402 to rotate. Through the meshing connection between multiple driven gears 402 and the toothed belt 403, other driven gears 402 are driven to rotate, which in turn drives multiple cleaning rollers 401 to rotate. The cleaning rollers 401 wipe and clean the outer periphery and bottom of the detection probe 23, thereby cleaning the soil remaining on the detection probe 23. This achieves the goal of cleaning the soil in each detection area 201 before testing it, thus solving the problem that when testing soil at different depths in the same location, residual substances from the previous depth of soil adhere to the detection probe when testing soil at a lower depth, which can easily affect the soil test results.

[0033] Example 2

[0034] like Figures 9 to 11As shown in the embodiment of the present invention, a soil pollution detection device is provided. In order to achieve the function of collecting soil in each detection area 201 before the soil pollution detection device performs detection, the sampling tube 200 is provided with multiple sampling ports 204 communicating with the detection area 201. Two sealing plates 205 that open and close simultaneously are provided in the sampling ports 204. A collection component 700 is provided in the detection area 201, and an opening and closing component 800 is provided on one side of the sealing plate 205. The opening and closing component 800 drives the two sealing plates 205 to move to both sides simultaneously, so that the sample inlet 204 opens and the collection component 700 moves outward; During the outward movement of the acquisition component 700, the sample from the outer periphery of the sampling tube 200 is collected into the detection area 201; like Figures 9 to 11 As shown, in order to achieve the effect of layered sampling within the sampling tube 200, the top and bottom of the sealing plate 205 extend into the cleaning area 202 at the top and bottom of the detection area 201, respectively. The opening and closing assembly 800 includes a drive motor 801 located in the cleaning area 202 at the top of the detection area 201. The top inner sides of the two sealing plates 205 are hinged with telescopic rods 802. One end of the telescopic rod 802 is rotatably connected to the bottom surface of the cleaning area 202 via a connecting shaft. The two connecting shafts are fixedly connected with meshing moving gears 803. A bracket 804 is fixedly connected inside the cleaning area 202. The drive motor 801 is fixedly mounted on the bracket 804 and its output end is fixedly connected to one of the moving gears 803. In the cleaning area 202 located at the bottom of the detection area 201, two sealing plates 205 are hinged to the bottom of the inner side with fixed rods 805, and the other end of the two fixed rods 805 is provided with a hinge seat 806. The two fixed rods 805 are movably hinged to the hinge seat 806. The drive motor 801 drives one of the moving gears 803 to rotate. The meshing connection between the two moving gears 803 allows them to rotate to opposite sides. Simultaneously, the telescopic rod 802 is hinged at one end to the sealing plate 205 and at the other end to the bottom surface of the clean area 202. When the moving gear 803 rotates, it drives the telescopic rod 802 to rotate, causing the two sealing plates 205 to rotate to opposite sides, thus opening the sample inlet 204. As the two sealing plates 205 move to opposite sides, the bottom of the sealing plates 205 is fixed... The hinged connection between rod 805 and sealing plate 205 causes one end of the two fixed rods 805 to move to both sides. The other end of the two fixed rods 805 is movably hinged to the hinge seat 806, so that when one end of the two fixed rods 805 moves to both sides, the hinge seat 806 moves towards the sampling port 204. By opening multiple sampling ports 204 on the outer periphery of the sampling tube, the effect of stratified sampling within the sampling tube 200 can be effectively achieved, and the purpose of rapid one-time detection of soil at different depths at the same location can be achieved, providing multiple sampling spaces.

[0035] like Figures 9 to 11 As shown, in order to achieve the effect of collecting soil into the detection area 201, the collection component 700 includes a movable rod 701 and a scraper 702 fixedly disposed on the outer periphery of the movable rod 701. The two ends of the movable rod 701 are slidably connected to the top and bottom of the detection area 201 through sliding grooves. The bottom of the detection area 201 is provided with a hole groove so that the bottom end of the movable rod 701 extends into the clean area 202. A fixed plate 703 is fixedly connected to one side of the hinge seat 806. The bottom end of the movable rod 701 is rotatably connected to the fixed plate 703. A control motor 704 is fixedly connected to the fixed plate 703. The output end of the control motor 704 is fixedly connected to the bottom end of the movable rod 701. As the opening / closing component 800 moves the two sealing plates 205 to both sides, it also moves the hinge seat 806 towards the sample inlet 204, thereby moving the collection component 700 towards the sample inlet 204. During this movement, the control motor 704 rotates the movable rod 701, causing multiple scrapers 702 to rotate around the movable rod 701. The scrapers 702 contact the soil outside the sampling tube 200, scraping and moving the soil into the detection area 201. As the collection component 700 gets closer to the sample inlet 204, more soil is collected. When the collection component 700 reaches the sample inlet 204 and the two sealing plates 205 are fully open, the soil is collected... The component 700 has difficulty collecting soil near the inlet 204. Since the sampling tube 200 stops rotating at high speed after reaching the designated position and rotates slowly, the collection device can collect soil around the detection area 201, thus collecting more soil. The collected soil is loose and will not damage the detection probe 23 due to excessive compaction. Simultaneously, the scraper 702 scrapes and transports the soil outside the sampling tube 200 into the detection area 201. The collection component 700 collects soil while the sampling tube 200 rotates, effectively reducing the entry of hard soil clods or stones into the detection area 201, thereby effectively preventing the detection probe 23 from being damaged by contact with hard stones. Example 3 A detection method for a soil pollution detection device, applied to the aforementioned soil pollution detection device, includes the following steps: The drilling and sampling process involves the control component 300 driving the sampling tube 200 into the ground. Once the sampling tube 200 reaches the designated position, it stops moving downwards and rotates in its original position. The opening and closing device drives the two sealing plates 205 to move to both sides simultaneously, while also driving the acquisition component 700 to move towards the sampling port 204, so that the acquisition component 700 comes into contact with the soil around the sampling tube 200. The acquisition component 700 collects the soil around the sampling tube 200 into the detection area 201, and then connects the power cord 22 to the data acquisition box 21. The mobile detection mechanism operates by moving the transmission component 600. Through the cooperation between the moving component 500 and the power cord 22, the power cord 22 and the detection probe 23 fixedly connected to the power cord 22 are driven to move downward, so that the detection probe 23 contacts the soil in each detection area 201 from high to low and performs detection on the soil in each detection area 201. The detection probe 23 is cleaned. After the detection probe 23 detects the soil in the first detection area 201, it continues to move downward and passes through the cleaning area 202. The cleaning component 400 in the cleaning area 202 cleans the detection probe 23 and removes the soil in the first detection area 201 on the detection probe 23. The detection probe 23 is cleaned repeatedly as it continues to move downward.

[0036] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A soil pollution detection device, characterized by, The utility model provides a soil sampler and soil detector, the soil sampler includes fuselage, sampling tube and operating assembly, the soil detector includes data acquisition box, power cord matched with data acquisition box, detection probe fixedly connected with power cord; The sampling tube comprises a plurality of adjacent detection zones and cleaning zones, the cleaning zone is provided with a cleaning assembly, the detection zone and the cleaning zone are provided with a moving assembly for moving the detection probe, the moving assembly and the cleaning assembly are provided with a transmission member; The moving assembly moves the power cord and the detection probe in the sampling tube; The cleaning assembly comprises a plurality of cleaning rollers, the transmission member drives the plurality of cleaning rollers to rotate simultaneously, the moving assembly moves the detection probe into the cleaning zone, and the plurality of cleaning rollers wipe the surface of the detection probe.

2. The soil pollution detection device of claim 1, wherein, The operating assembly comprises a gasoline engine and a motor, the fuselage is slidably provided with a bearing table, the fuselage is rotatably connected with a threaded rod through a bearing, the bearing table is threadedly connected with the threaded rod, the motor is fixedly installed on the fuselage and has an output end fixedly connected with one end of the threaded rod, the sampling tube is arranged at the bottom of the bearing table, and the gasoline engine is fixedly installed on the bearing table and has an output end fixedly connected with the sampling tube.

3. The soil pollution detection device of claim 2, wherein, The moving assembly comprises a threaded sleeve, a circular hole is formed in the middle of the inner wall between the detection zone and the cleaning zone, the threaded sleeve is sleeved in the circular hole, the outer periphery of the threaded sleeve is fixedly connected with a ring gear, the surface of the power cord is provided as a threaded hose, and the threaded hose is threadedly connected with the threaded sleeve.

4. The soil pollution detection device of claim 3, wherein The cleaning assembly further comprises a plurality of slave gears, the plurality of slave gears are fixedly installed on the top of the cleaning rollers, and the outer periphery of the plurality of slave gears is sleeved with a tooth belt in mesh connection with the slave gears.

5. The soil contamination detection device of claim 4, wherein The transmission member comprises a gear set, an inner groove is formed in the inner wall between the cleaning zone and the detection zone, the gear set is fixedly installed in the inner groove, main gears are rotatably arranged in the sampling tube, the main gears drive the gear set to operate, thereby driving the ring gear and the slave gears to rotate, the plurality of main gears are fixedly connected through connecting rods, and a servo motor is fixedly connected in the sampling tube.

6. The soil contamination detection device of claim 5, wherein Two elastic expansion plates are fixedly installed at the circular hole at the bottom of the detection zone, and one side of the elastic expansion plate is provided as a circular arc surface.

7. The soil contamination detection device according to any one of claims 1 to 6, characterized in that, A plurality of sampling inlets are formed in the sampling tube and communicated with the detection zone, two sealing plates that are opened and closed simultaneously are arranged in the sampling inlet, a collecting assembly is arranged in the detection zone, and an opening and closing assembly is arranged on one side of the sealing plate. The opening and closing assembly drives the two sealing plates to move to two sides simultaneously, so that the sampling inlet is opened and the collecting assembly moves outward. The collecting assembly collects the sample on the outer periphery of the sampling tube into the detection zone during the outward movement.

8. The soil contamination detection device of claim 7, wherein, The top and bottom of the sealing plate extend into the cleaning area at the top and bottom of the detection area respectively, the opening and closing assembly comprises a driving motor located in the cleaning area at the top of the detection area, telescopic rods are hingedly connected to the inner top of the two sealing plates, one end of the telescopic rod is rotatably connected to the bottom surface of the cleaning area through a connecting shaft, and a driving gear is fixedly connected to each of the two connecting shafts and meshes with each other, a bracket is fixedly connected in the cleaning area, and the driving motor is fixedly installed on the bracket and fixedly connected to one of the driving gears at the output end; The inner bottom of the two sealing plates is hingedly connected to fixed rods, and the other end of the fixed rods is provided with a hinged seat, and the fixed rods and the hinged seat are movably hinged.

9. The soil contamination detection device of claim 8, wherein, The collection assembly comprises a movable rod and a scraper fixedly arranged on the outer periphery of the movable rod, both ends of the movable rod are slidably connected to the top and bottom of the detection area through a sliding groove, a hole groove is formed in the bottom of the detection area to extend the bottom end of the movable rod into the cleaning area, a fixed plate is fixedly connected to one side of the hinged seat, the bottom end of the movable rod is rotatably connected to the fixed plate, a control motor is fixedly connected to the fixed plate, and the output end of the control motor is fixedly connected to the bottom end of the movable rod.

10. A detection method of a soil pollution detection apparatus, characterized by: The application of the soil pollution detection device according to any one of claims 1-9, the detection method of the soil pollution detection device comprises the following steps: Drilling sampling, the sampling pipe is driven into the ground by the control assembly, the sampling pipe does not move downward when reaching the specified position and rotates at the original position, the opening and closing device drives the two sealing plates to move to both sides at the same time, and drives the collection assembly to move to the sampling port at the same time, so that the collection assembly contacts the soil on the outer periphery of the sampling pipe, and the collection assembly collects the soil on the outer periphery of the sampling pipe into the detection area, and then the power line is connected with the data acquisition box; Moving detection, the transmission member is operated, the power line and the detection probe fixedly connected with the power line are driven to move downward through the cooperation between the moving assembly and the power line, so that the detection probe contacts the soil of each detection area from high to low, and the soil of each detection area is detected; Cleaning of the detection probe, after the detection probe detects the soil of the first detection area, the detection probe continuously moves downward and passes through the cleaning area, the detection probe is cleaned by the cleaning assembly in the cleaning area, the soil of the first detection area on the detection probe is cleaned, and the detection probe is repeatedly cleaned during the continuous downward movement of the detection probe.

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