Soil micro-plastic detecting and sampling equipment

Abstract

The invention belongs to the field of soil sampling, and particularly relates to soil micro-plastic detecting and sampling equipment which comprises a moving box, a probe capable of ascending and descending is arranged in the moving box, splicing plates capable of being in butt joint with and separated from the probe are arranged on the two sides of the probe, the splicing plates are arranged in an arc shape, and the probe is arranged in the moving box. A crawler chassis is installed on one side of the moving box, two steering driving wheels are installed on the other side of the moving box, two extrusion plates capable of moving are arranged on one side of a probe, and a discharging hole is formed in the side, close to the steering driving wheels, of the moving box. And after sampling is completed every time, the movable box can be moved to a designated place, the soil is pushed to a designated collecting position to be stored through an extrusion plate, and after sampling is completed at a plurality of sampling points, the soil is recycled at the same time.

Description

Technical Field

[0001] The present invention belongs to the field of soil sampling, and specifically relates to a soil microplastic detection sampling device. Background Art

[0002] Soil microplastics refer to plastic particles or fragments with a particle size less than 5 millimeters. As an emerging pollutant, they are widely present in the soil and pose potential risks to the soil ecosystem and biodiversity. Therefore, it is necessary to regularly sample the soil to measure the content of soil microplastics.

[0003] Soil sampling is the basis and key link for studying soil microplastic pollution, assessing environmental risks, and formulating treatment measures. The detection methods of soil microplastic content mainly include steps such as sample collection and pretreatment, microplastic extraction, identification, and analysis.

[0004] Traditional soil sampling often relies on manual use of a sampling shovel for sampling work. This not only consumes a large amount of human resources, but also the general sampling locations are remote and the environment is complex. It is not only time-consuming for staff to sample, but also difficult to move to the required sampling location, making it difficult to obtain the required soil samples, and often accompanied by the risk of injury.

[0005] Therefore, the present invention provides a soil microplastic detection sampling device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A soil microplastic detection sampling device of the present invention includes a mobile box. Inside the mobile box, there is a probe that can be lifted. On both sides of the probe, there are splicing plates that can be docked and separated from the probe. The splicing plates are arc-shaped. On one side of the mobile box, a crawler chassis is installed. On the other side of the mobile box, two steering drive wheels are installed. On one side of the probe, there are two extrusion plates that can move. An outlet hole is opened on one side of the mobile box close to the steering drive wheel; The mobile box is driven to move by remotely controlling the crawler chassis and the steering drive wheels. When it moves to the predetermined sampling location, first control the probe to sink and insert it into the soil. As the probe is inserted, if there are large-volume stones or other obstacles in the soil below, the probe cannot sink smoothly. At this time, it is necessary to shift the sampling location to facilitate that the subsequent sampling process will not be hindered by obstacles such as stones. After the probe is successfully inserted, start the operation of the steering drive wheels and the crawler chassis. Since the mobile box is fixed by the probe at this time, the driving of the steering drive wheels and the crawler chassis cannot make the mobile box move forward, but will directly rub against the ground, thereby removing the dust and debris on the surface layer of the soil. Because in the sampling standard, it is necessary to reduce the doping of surface substances in the sampled soil; only the surface foreign matters need to be removed, which can be easily achieved by the rotation of the drive wheels and the crawler chassis. After the friction is over, control the mobile box to move to one side, and perform the probe insertion and soil surface layer removal work again. Then control the mobile box to move to the center position between the two probes, fix the two splicing plates on the outside of the probes, and then the probes drive the splicing plates to sink into the soil together. During the sinking process, part of the soil enters between the two splicing plates under the action of extrusion, and as the probes rise, the soil is pulled out of the ground. Then start the movement of the two pressing plates to push the soil in the splicing plates into the discharge hole, thus completing the soil sampling work; through this setting, the function of remotely controlling the equipment for soil sampling is realized, without manual sampling. When each sampling is completed, the mobile box can be moved to the designated location, and the pressing plate is used to push the soil to the designated collection place for storage. After sampling at multiple sampling points is completed, they are recycled together. An optical module is installed on the outside of the mobile box for observing the road surface conditions. The operation method can be remotely manually adjusted or program-controlled; effectively reducing the human resources consumed in the sampling process, and at the same time, multiple devices can perform synchronous operations at different locations, improving the work efficiency; for example, the staff puts multiple devices into different areas and remotely controls the equipment to sample during the movement of the personnel or controls the sampling by program; then waits for the equipment to finish sampling and then recovers the samples; and the structure and shape of the equipment are regular and easy to carry, and at the same time, the crawler chassis has strong off-road capabilities, facilitating movement to any sampling point for sampling.

[0008] Preferably, a packaging roll is arranged inside the moving box. Both ends of the packaging roll are connected with electric shafts. A plurality of hollow holes are formed on the surface of the packaging roll, and separation bags are connected in the hollow holes. An adsorption arm for opening the separation bags is arranged in the moving box. Before the soil is taken out, the two electric shafts are started to control the movement of the packaging roll, so that the position of the separation bag is moved to the vertical state. Then, the separation bag is extruded by the extrusion plate. The connection between the upper edge and the two side edges of the separation bag and the hollow hole is less. When the extrusion plate extrudes, except for the bottom position, the separation bag is still connected with the packaging roll, and the rest of the positions will break and separate; after the soil is taken out by the probe, it is moved to the upper edge of the separation bag by the adsorption arm. The separation bag is of a double-layer structure, and the opening position is at the bottom. As the adsorption arm adsorbs and grabs, the end of the separation bag will be opened. Then, the extrusion plate pushes the soil into the separation bag for storage. After the adsorption arm leaves, the adsorption arm is used to press down again to seal the separation bag. Then, the extrusion plate is used to push the already bulged separation bag until the separation bag is separated from the packaging roll and pushed to the outside of the discharge hole. Through this setting, the packaging work of the sampled soil is realized, the pollution of the sampled soil by the external environment before recycling is reduced, the quality of the sampled soil is guaranteed, and the subsequent recycling process is also facilitated.

[0009] Preferably, two symmetrically arranged support boxes are installed inside the moving box. A suspension box is fixedly connected between the tops of the two support boxes, and a support seat is fixedly connected between the bottoms of the two support boxes. The two electric shafts are respectively located inside the suspension box and the support seat. The packaging roll is pulled into a bent shape. An adsorption hole adapted to the adsorption arm is formed on the top surface of the support seat. By controlling the movement of the packaging roll through the two electric shafts, after each sampling, the required separation bag can be moved to one side of the splicing plate. Small air extractors are installed in both the adsorption hole and the adsorption arm to grab the two open ends of the separation bag, so as to smoothly open the separation bag. An electric heating wire is also installed in the adsorption arm, which can be used to heat-seal the separation bag when turned on, reducing the outflow of the sampled soil.

[0010] Preferably, a driving frame is fixedly connected to the top of the adsorption arm. One end of the driving frame is equipped with a driving motor for driving the driving frame to rotate. The driving motor drives the driving frame and the adsorption arm to rotate, so as to realize the opening of the separation bag. At the same time, when the extrusion plate extrudes the separation bag, the driving frame rotates and lifts, which will not interfere with the movement of the extrusion plate.

[0011] Preferably, a reduction motor is installed inside the power box. The output end of the reduction motor is fixedly connected with a gear. Transmission teeth adapted to the gear are arranged on the outer side of the probe near the top. The reduction motor drives the gear to rotate, and then drives the probe to slowly and powerfully sink and rise. The position of the transmission teeth will not enter the soil and will not affect the transmission process.

[0012] Preferably, a connecting frame is fixedly connected to the middle of the crawler chassis. Two first electric telescopic rods are fixedly connected to the top of the connecting frame. The first electric telescopic rods are fixedly connected to the extrusion plate. The movement process of the extrusion plate is controlled by the first electric telescopic rods. Two steering drive wheels are used to control the steering of the device, and at the same time, the discharge hole can be opened between the two steering drive wheels.

[0013] Preferably, a second electric telescopic rod is fixedly connected to the inside of the support box. A grasping arm is fixedly connected to the end of the second electric telescopic rod. A protrusion adapted to the grasping arm is fixedly connected to the rear end of the splicing plate. The movement of the grasping arm is controlled by the second electric telescopic rod. The grasping arm is used to fix the splicing plate and control the movement of the splicing plate. After the splicing plate is fixed to the probe, the fixation is released so that the splicing plate can move downward normally with the probe.

[0014] Preferably, clamping grooves adapted to the probe are opened at the top and bottom of the splicing plate. A docking ring is fixedly connected to the surface of the probe. The probe will be stuck in the clamping groove, and the docking ring will fix the splicing plate and prevent it from moving. When the probe sinks with the splicing plate, the splicing plate will receive an upward reaction force and a centripetal extrusion force. The docking ring and the clamping groove cooperate with each other to prevent the splicing plate from detaching from the probe under the action of the two forces. Clips or solenoid valves can be added to both ends of the splicing plate to further ensure the stability of the connection.

[0015] Preferably, a plurality of protruding crushing blocks are fixedly connected to the bottom of the probe. A through hole for passing the probe is opened at the top of the moving box. The crushing blocks at the bottom of the probe can assist the probe in inserting downward. An overly sharp end is easily damaged. The design with multiple sharp corners allows the probe to disperse the force and improves the service life. The through hole allows the probe to extend upward normally.

[0016] Preferably, one side of the extrusion plate is arranged vertically, and the other side of the extrusion plate is arranged in an arc shape. A bent support member is fixedly connected between the first electric telescopic rod and the extrusion plate. The support member is used to ensure stable force during the movement of the extrusion plate. The shape of the extrusion plate is slightly smaller than the shape surrounded by the splicing plate and the probe, improving the error tolerance rate.

[0017] The beneficial effects of the present invention are as follows: 1. A soil microplastic detection sampling device according to the present invention, through the settings of a probe, a crawler chassis and splicing plates, can not only directly rub the ground to remove dust and sundries on the surface layer of the soil, reducing the doping of surface substances in the sampled soil, but also realizes the function of remotely controlling the device to take soil samples, eliminating the need for manual sampling. After each sampling is completed, the mobile box can be moved to a designated location, and the extrusion plate is used to push the soil to a designated collection place for storage. After sampling at multiple sampling points is completed, the samples are recycled together. An optical module is installed on the outer side of the mobile box for observing the road surface conditions. The operation method can be remotely manually adjusted or program-controlled; effectively reducing the human resources consumed during the sampling process, and multiple devices can perform synchronous operations at different locations, improving work efficiency; then waiting for the device to finish sampling before recycling the samples; and the device has a regular structure and is easy to carry, and at the same time, the crawler chassis has strong off-road capabilities, facilitating movement to any sampling point for sampling.

[0018] 2. A soil microplastic detection sampling device according to the present invention, before the soil is taken out, two electric shafts are started to control the movement of the packaging roll, moving the position of the separation bag to a vertical state, and then the extrusion plate is used to squeeze the separation bag. The connection between the upper edge and the two side edges of the separation bag and the hollow holes is less. When the extrusion plate squeezes, except for the bottom position where the separation bag is still connected to the packaging roll, the rest of the positions will break and separate; when the soil is taken out by the probe, it is moved to the upper edge of the separation bag by the adsorption arm. The separation bag is a double-layer structure, and the opening position is at the bottom. As the adsorption arm adsorbs and grabs, the end of the separation bag will be opened. Then the extrusion plate pushes the soil to move into the separation bag for storage. After the adsorption arm leaves, the adsorption arm is used to press down to seal the separation bag. Then the extrusion plate is used to push the bulged separation bag until the separation bag is separated from the packaging roll and pushed to the outside of the discharge hole. Through this setting, the packaging work of the sampled soil is realized, reducing the pollution of the sampled soil by the external environment before recycling, ensuring the quality of the sampled soil, and facilitating the subsequent recycling process. Brief Description of the Drawings

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 is a three-dimensional view of the present invention; Figure 2 is an internal structure diagram of the mobile box of the present invention; Figure 3 is a three-dimensional view of the mobile box of the present invention; Figure 4 is a three-dimensional view after the splicing plate and the probe of the present invention are spliced; Figure 5 is a three-dimensional view of the packaging roll of the present invention; Figure 6 It is a perspective view of the probe and the extrusion plate of the present invention; Figure 7 It is a perspective view of the splicing plate and the second electric telescopic rod of the present invention; In the figure: 1. Moving box; 2. Crawler chassis; 3. Connecting frame; 4. First electric telescopic rod; 5. Steering drive wheel; 6. Probe; 7. Support box; 8. Suspension box; 9. Power box; 10. Second electric telescopic rod; 11. Splicing plate; 13. Transmission gear; 14. Discharge hole; 15. Electric shaft; 16. Packaging roll; 17. Extrusion plate; 18. Adsorption arm; 19. Support seat; 20. Drive frame; 21. Separation bag; 22. Docking ring; 24. Grabbing arm. Detailed implementation manners

[0021] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0022] As Figures 1 to 7 shown, a soil microplastic detection and sampling device according to an embodiment of the present invention includes a moving box 1. An elevating probe 6 is arranged inside the moving box 1. Splicing plates 11 capable of docking and separating with the probe 6 are arranged on both sides of the probe 6. The splicing plates 11 are arranged in an arc shape. A crawler chassis 2 is installed on one side of the moving box 1, and two steering drive wheels 5 are installed on the other side of the moving box 1. Two movable extrusion plates 17 are arranged on one side of the probe 6. A discharge hole 14 is opened on the side of the moving box 1 close to the steering drive wheel 5; The mobile box 1 is driven to move by remotely controlling the crawler chassis 2 and the steering drive wheel 5. After moving to the predetermined sampling location, first control the probe 6 to sink so that the probe 6 is inserted into the soil. As the probe 6 is inserted, if there are large-volume stones or other obstacles in the lower soil, the probe 6 cannot sink smoothly. At this time, it is necessary to reselect and move away from the existing sampling location; this is convenient for the subsequent sampling process and will not be hindered by obstacles such as stones; after the probe 6 is successfully inserted, start the operation of the steering drive wheel 5 and the crawler chassis 2. Since the mobile box 1 is fixed by the probe 6 at this time, the driving of the steering drive wheel 5 and the crawler chassis 2 cannot make the mobile box 1 move forward, so it will directly rub against the ground, thereby removing the dust and debris on the surface layer of the soil, because in the sampling standard, it is necessary to reduce the doping of surface substances in the sampled soil; after removing the debris, control the mobile box 1 to move to one side and perform the work of inserting the probe 6 and removing the surface debris of the soil again; after performing the removal work twice, a clean sampling and detection surface is formed on the soil surface. The sampling and detection surface formed between two adjacent probes 6 can effectively reduce the possibility that the insertion of the probe 6 is hindered by obstacles such as stones during the detection; then control the mobile box 1 to move to the center position between the two probes 6, dock the two splicing plates 11 outside the probes 6, and then the probe 6 drives the splicing plates 11 to sink into the soil together. During the sinking process, part of the soil enters between the two splicing plates 11 under the action of extrusion, and as the probe 6 rises, the soil is pulled out of the ground. Then start the movement of the two pressing plates 17 to push the soil in the splicing plates 11 into the discharge hole 14, thus completing the soil sampling work; through this setting, the function of remotely controlling the equipment for soil sampling is realized, and manual sampling is not required. When each sampling is completed, the mobile box 1 can be moved to the designated location, and the pressing plate 17 is used to push the soil to the designated collection place for storage. After sampling at multiple sampling points is completed, it is recycled at the same time. An optical module is installed on the outside of the mobile box 1 for observing the road surface conditions. The operation method can be remotely manually adjusted or program-controlled; effectively reducing the human resources consumed in the sampling process, and at the same time, multiple devices can perform synchronous operations at different locations, improving the work efficiency; for example, the staff puts multiple devices into different areas and remotely controls the equipment for sampling or program-controls the sampling during the movement of the personnel; then waits for the equipment to complete sampling and then recovers the samples; and the structure and shape of the equipment are regular and easy to carry, and at the same time, the crawler chassis 2 has strong off-road capabilities, which is convenient to move to any sampling point for sampling.

[0023] A packaging roll 16 is arranged inside the mobile box 1. Both ends of the packaging roll 16 are connected with electric shafts 15. A plurality of hollow holes are formed on the surface of the packaging roll 16, and a separation bag 21 is connected in the hollow holes. An adsorption arm 18 for opening the separation bag 21 is arranged in the mobile box 1; During operation, before the soil is taken out, start the two electric shafts 15 to control the movement of the packaging roll 16, move the position of the separation bag 21 to the vertical state, and then use the pressing plate 17 to press the separation bag 21. There is less connection between the upper edge and the two side edges of the separation bag 21 and the hollow holes. When the pressing plate 17 presses, except for the bottom position where the separation bag 21 is still connected to the packaging roll 16, the rest of the positions will break and separate; when the soil is taken out by the probe 6, it is moved to the upper edge of the separation bag 21 through the adsorption arm 18. The separation bag 21 is a double-layer structure, and the opening position is at the bottom. When the separation bag 21 is in the horizontal state, the opening faces the splicing plate 11. In the double-layer structure of the separation bag 21, one layer is fixedly connected to the packaging roll 16. In the horizontal state, it is the bottom layer of the separation bag 21 that is fixedly connected to the separation bag 21. Therefore, with the adsorption and grasping of the adsorption arm 18, the upper layer of the separation bag 21 will be fixed. As the adsorption arm 18 moves upward, the end of the separation bag 21 will be opened. Then, the pressing plate 17 pushes the soil to move into the separation bag 21 for storage. When the adsorption arm 18 leaves, use the adsorption arm 18 to press down again. The adsorption arm 18 seals the separation bag 21. Then, use the pressing plate 17 to push the already bulged separation bag 21 until the separation bag 21 is separated from the packaging roll 16 and pushed to the outside of the discharge hole 14. Through this setting, the packaging work of the sampled soil is realized, reducing the pollution of the sampled soil by the external environment before recycling, ensuring the quality of the sampled soil, and facilitating the subsequent recycling process.

[0024] Inside the moving box 1, two symmetrically arranged support boxes 7 are installed. A suspension box 8 is fixedly connected between the tops of the two support boxes 7, and a support seat 19 is fixedly connected between the bottoms of the two support boxes 7. The two electric shafts 15 are respectively located inside the suspension box 8 and the support seat 19. The packaging roll 16 is pulled into a bent shape. An adsorption hole adapted to the adsorption arm 18 is opened on the top surface of the support seat 19. During operation, the movement of the packaging roll 16 is controlled by the two electric shafts 15. After each sampling, the required separation bag 21 can be moved to one side of the splicing plate 11. Small air extractors are installed in both the adsorption hole and the adsorption arm 18 to grasp both ends of the opening of the separation bag 21, thereby smoothly opening the separation bag 21. An electric heating wire is also installed in the adsorption arm 18, which can heat-seal the separation bag 21 when turned on to reduce the outflow of the sampled soil.

[0025] The top of the adsorption arm 18 is fixedly connected with a driving frame 20, and a driving motor for driving the driving frame 20 to rotate is installed at one end of the driving frame 20. During operation, the driving motor drives the driving frame 20 and the adsorption arm 18 to rotate, thereby realizing the opening of the separation bag 21. At the same time, when the pressing plate 17 presses the separation bag 21, the driving frame 20 rotates and lifts, which will not interfere with the movement of the pressing plate 17.

[0026] A power box 9 is fixedly connected to the middle of the suspension box 8, a reduction motor is installed inside the power box 9, a gear is fixedly connected to the output end of the reduction motor, and a transmission tooth 13 matching the gear is opened on the outer side of the probe 6 near the top; During operation, the gear is driven to rotate by the reduction motor, thereby driving the probe 6 to slowly and forcefully sink and rise, and the position of the transmission tooth 13 will not enter the soil, and will not affect the transmission process.

[0027] A connecting frame 3 is fixedly connected to the middle of the crawler chassis 2, and two electric telescopic rods 4 are fixedly connected to the top of the connecting frame 3, and the electric telescopic rods 4 are fixedly connected to the extrusion plate 17; During operation, the movement of the extrusion plate 17 is controlled by the electric telescopic rod 14, and the two steering drive wheels 5 are used to control the steering of the equipment, while the discharge hole 14 can be opened between the two steering drive wheels 5.

[0028] The support box 7 is fixedly connected to the inside with an electric telescopic rod 2 10, the end of the electric telescopic rod 2 10 is fixedly connected to a grab arm 24, and the rear end of the splicing plate 11 is fixedly connected to a protrusion adapted to the grab arm 24; During operation, the grabbing arm 24 is controlled to move by the electric telescopic rod 10, and the grabbing arm 24 is used to fix the splicing plate 11 to control the movement of the splicing plate 11. When the splicing plate 11 is fixed to the probe 6, the fixation is released so that the splicing plate 11 can move downward normally with the probe 6.

[0029] The top and bottom of the splicing plate 11 are provided with slots adapted to the probe 6, and a docking ring 22 is fixedly connected to the surface of the probe 6; During operation, the probe 6 will be stuck in the slot, and the docking ring 22 will fix the splicing plate 11 so that it cannot move. When the probe 6 carries the splicing plate 11 to sink, the splicing plate 11 will be subjected to an upward reaction force and an extrusion force toward the center. The docking ring 22 and the slot cooperate with each other to prevent the splicing plate 11 from detaching from the probe 6 under the action of the two forces. Buckles or solenoid valves can be added at both ends of the splicing plate 11 to further ensure the stability of the connection.

[0030] The bottom of the probe 6 is fixed with a plurality of protruding crushing blocks, and the top of the mobile box 1 is provided with a through hole for passing the probe 6; During operation, the broken block at the bottom of the probe 6 can assist the downward insertion of the probe 6. An overly sharp end is easily damaged. The multi-pointed design allows the probe 6 to disperse the force and increase its service life. The through hole allows the probe 6 to extend upward normally.

[0031] One side of the extrusion plate 17 is vertically arranged, and the other side of the extrusion plate 17 is arc-shaped, and a bent support member is fixedly connected between the electric telescopic rod 14 and the extrusion plate 17; During operation, the support member is used to ensure stable force application during the movement of the extrusion plate 17. The shape of the extrusion plate 17 is slightly smaller than the shape enclosed by the splicing plate 11 and the probe 6, improving the error tolerance rate.

[0032] During operation, the remote-controlled crawler chassis 2 and the steering drive wheel 5 are used to drive the mobile box 1 to move. When it moves to the predetermined sampling location, first control the probe 6 to sink and insert the probe 6 into the soil. As the probe 6 is inserted, if there are large-volume stones or other obstacles in the soil below, the probe 6 cannot sink smoothly. At this time, it is necessary to shift the sampling location; this is to facilitate that during the subsequent sampling process, it will not be obstructed by obstacles such as stones; after the probe 6 is successfully inserted, start the operation of the steering drive wheel 5 and the crawler chassis 2. Since the mobile box 1 is fixed by the probe 6 at this time, the driving of the steering drive wheel 5 and the crawler chassis 2 cannot make the mobile box 1 move forward, so it will directly rub against the ground, thereby removing the dust and debris on the surface layer of the soil. Because in the sampling standard, it is necessary to reduce the doping of surface substances in the sampled soil; after removing the debris, control the mobile box 1 to move to one side and perform the operation of inserting the probe 6 and removing the debris on the soil surface again; after performing the removal operation twice, a clean sampling and detection surface is formed on the soil surface. The sampling and detection surface formed between two adjacent probes 6 can effectively reduce the possibility that the insertion of the probe 6 during the detection is obstructed by obstacles such as stones; then control the mobile box 1 to move to the center position between the two probes 6, dock the two splicing plates 11 outside the probes 6, and then the probe 6 drives the splicing plates 11 to sink into the soil together. During the sinking process, part of the soil enters between the two splicing plates 11 under the action of extrusion, and as the probe 6 rises, the soil is pulled out of the ground. Then start the movement of the two extrusion plates 17 to push the soil in the splicing plates 11 into the discharge hole 14, thus completing the soil sampling work; through this setting, the function of remotely controlling the equipment for soil sampling is realized, without manual sampling. When each sampling is completed, the mobile box 1 can be moved to the designated location, and the extrusion plate 17 is used to push the soil to the designated collection place for storage. After sampling at multiple sampling points is completed, it is recycled together. An optical module is installed on the outside of the mobile box 1 for observing the road surface conditions. The operation method can be remotely manually adjusted or program-controlled; it effectively reduces the human resources consumed during the sampling process, and at the same time, multiple devices can perform synchronous operations at different locations, improving the work efficiency; for example, the staff puts multiple devices in different areas and remotely controls the equipment for sampling or program-controls the sampling during the movement of the personnel; then waits for the equipment to finish sampling and then recovers the samples; and the structure and shape of the equipment are regular and easy to carry, and at the same time, the crawler chassis 2 has strong off-road capabilities, facilitating movement to any sampling point for sampling; Before the soil is taken out, start two electric shafts 15 to control the movement of the packaging roll 16, move the position of the separation bag 21 to the vertical state, and then use the extrusion plate 17 to squeeze the separation bag 21. There is less connection between the upper edge and the two side edges of the separation bag 21 and the hollow holes. When the extrusion plate 17 squeezes, except for the bottom position where the separation bag 21 is still connected to the packaging roll 16, the rest of the positions will break and separate; when the soil is taken out by the probe 6, it is moved to the upper edge of the separation bag 21 through the adsorption arm 18. The separation bag 21 is a double-layer structure, and the opening position is at the bottom. As the adsorption arm 18 adsorbs and grabs, the end of the separation bag 21 will be opened. Then the extrusion plate 17 pushes the soil to move into the separation bag 21 for storage. When the adsorption arm 18 leaves, the adsorption arm 18 is used to press down to seal the separation bag 21. Then the extrusion plate 17 is used to push the already bulged separation bag 21 until the separation bag 21 is separated from the packaging roll 16 and pushed to the outside of the discharge hole 14. Through this setting, the packaging work of the sampled soil is realized, reducing the pollution of the sampled soil by the external environment before recycling, ensuring the quality of the sampled soil, and facilitating the subsequent recycling process; The movement of the packaging roll 16 is controlled by two electric shafts 15. After each sampling, the required separation bag 21 can be moved to one side of the splicing plate 11. Small air pumps are installed in both the adsorption holes and the adsorption arm 18 to grab both ends of the opening of the separation bag 21, so as to smoothly open the separation bag 21. An electric heating wire is also installed in the adsorption arm 18, which can heat-seal the separation bag 21 when turned on to reduce the outflow of the sampled soil; The driving motor drives the driving frame 20 and the adsorption arm 18 to rotate, so as to realize the opening of the separation bag 21. At the same time, when the extrusion plate 17 squeezes the separation bag 21, the driving frame 20 rotates and lifts, which will not interfere with the movement of the extrusion plate 17; The reduction motor drives the gear to rotate, and then drives the probe 6 to slowly and powerfully sink and rise. The position of the transmission tooth 13 will not enter the soil and will not affect the transmission process; The movement process of the extrusion plate 17 is controlled by the electric telescopic rod one 4. Two steering drive wheels 5 are used to control the steering of the equipment, and at the same time, the discharge hole 14 can be opened between the two steering drive wheels 5; The movement of the grasping arm 24 is controlled by the electric telescopic rod two 10. The grasping arm 24 is used to fix the splicing plate 11 and control the movement of the splicing plate 11. When the splicing plate 11 is fixed to the probe 6, the fixation is released, so that the splicing plate 11 can move down normally with the probe 6; The probe 6 will be stuck into the card slot, and the docking ring 22 will fix the splicing plate 11 to prevent it from moving. When the probe 6 sinks with the splicing plate 11, the splicing plate 11 will receive an upward reaction force and a squeezing force towards the center. The docking ring 22 and the card slot cooperate with each other to prevent the splicing plate 11 from detaching from the probe 6 under the action of these two forces. Snap buttons or solenoid valves can be added to both ends of the splicing plate 11 to further ensure the connection stability; The crushing blocks at the bottom of the probe 6 can assist the probe 6 in being inserted downward. An overly sharp end is prone to damage. The multi-pointed design allows the probe 6 to disperse the force and improve its service life. The through-hole enables the probe 6 to extend upward normally; The support member is used to ensure stable force during the movement of the extrusion plate 17. The shape of the extrusion plate 17 is slightly smaller than the shape enclosed by the splicing plate 11 and the probe 6, improving the error tolerance rate.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of 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 of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil microplastic detection and sampling device, characterized in that: It comprises a mobile box, wherein a probe capable of being raised and lowered is arranged inside the mobile box, splicing plates capable of docking with and separating from the probe are arranged on both sides of the probe, and the splicing plates are arranged in an arc shape, a crawler chassis is installed on one side of the mobile box, two steering drive wheels are installed on the other side of the mobile box, two movable extrusion plates are arranged on one side of the probe, and a discharge hole is opened on the side of the mobile box close to the steering drive wheel.

2. A soil microplastic detection sampling device according to claim 1, characterized in that: A packing roll is arranged inside the mobile box, both ends of the packing roll are connected to electric shafts, a plurality of hollow holes are opened on the surface of the packing roll, separation bags are connected in the hollow holes, and an adsorption arm for opening the separation bag is arranged in the mobile box.

3. A soil microplastic detection sampling device according to claim 2, characterized in that: Two symmetrically arranged support boxes are installed inside the mobile box, a suspension box is fixedly connected between the tops of the two support boxes, a support base is fixedly connected between the bottoms of the two support boxes, two electric shafts are respectively located inside the suspension box and the support base, the packaging roll is pulled into a bent shape, and an adsorption hole adapted to the adsorption arm is opened on the top surface of the support base.

4. A soil microplastic detection sampling device according to claim 3, characterized in that: A driving frame is fixedly connected to the top of the adsorption arm, and a driving motor for driving the driving frame to rotate is installed at one end of the driving frame.

5. A soil microplastic detection sampling device according to claim 4, characterized in that: A power box is fixedly connected to the middle of the suspension box, a reduction motor is installed inside the power box, a gear is fixedly connected to the output end of the reduction motor, and a transmission tooth matching the gear is provided on the outer side of the probe near the top.

6. A soil microplastic detection sampling device according to claim 5, characterized in that: A connecting frame is fixedly connected to the middle of the crawler chassis, and two electric telescopic rods 1 are fixedly connected to the top of the connecting frame. The electric telescopic rods 1 are fixedly connected to the extrusion plate.

7. A soil microplastic detection sampling device according to claim 6, characterized in that: The interior of the support box is fixedly connected with the second electric telescopic rod, the end of the second electric telescopic rod is fixedly connected with a grabbing arm, and the rear end of the splicing plate is fixedly connected with a protrusion adapted to the grabbing arm.

8. A soil microplastic detection sampling device according to claim 7, characterized in that: The top and the bottom of the splicing plate are both provided with slots adapted to the probes, and a docking ring is fixedly connected to the surface of the probe.

9. A soil microplastic detection sampling device according to claim 8, characterized in that: A plurality of raised breaking blocks are fixedly connected to the bottom of the probe, and a through hole for passing the probe is opened on the top of the moving box.

10. A soil microplastic detection sampling device according to claim 9, characterized in that: One side of the extrusion plate is arranged in a vertical shape, and the other side of the extrusion plate is arranged in an arc shape. A bent support member is fixedly connected between the electric telescopic rod 1 and the extrusion plate.

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