Sampling equipment for monitoring soil environment

Abstract

The invention relates to the technical field of soil sampling, and discloses a sampling device for soil environment monitoring, which comprises a support plate, both sides of the support plate are fixedly connected with fixing frames, the top of the support plate is provided with a crushing assembly for crushing hard soil, the top of the support plate is provided with a sampling assembly for sampling soil, and the sampling assembly is used for sampling soil. The crushing assembly is arranged at the bottom of the supporting plate and used for collecting soil, a driving assembly is arranged at the bottom of the supporting plate and used for driving the whole equipment to move, the crushing assembly comprises a fixing plate, the fixing plate is fixedly connected to the top of the supporting plate, and a third motor is fixedly connected to one side of the fixing plate. A third motor drives a gear to rotate, when the gear rotates, a movable rod is driven by a rack to move downwards, and when the movable rod moves downwards, a plurality of ploughs are driven to move simultaneously, so that soil can be conveniently crushed under the action of the ploughs, and meanwhile, the soil crushing depth can be adjusted; therefore, the soil can be conveniently sampled.

Description

Technical Field

[0001] The present invention relates to the technical field of soil sampling, in particular to a sampling device for soil environment monitoring. 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 the hazards of soil pollution, it dynamically analyzes and measures the degree of soil pollution and its development trends. It includes surveys on the current status of soil environmental quality, surveys on regional soil environmental background values, investigations on soil pollution accidents, and dynamic observations of contaminated soil. Soil environmental monitoring generally includes steps such as preparation, site layout, sampling, sample preparation, analysis and testing, and evaluation. The sampling step is particularly important. The quality of the samples taken directly affects the subsequent monitoring of the soil.

[0003] Common types of traditional soil samplers include soil drills, shovels, and spades. These tools are widely used because of their simple structure and easy portability. They are usually used by pressing down or manually turning the sampler into the soil, and then removing it by pulling it upwards.

[0004] In the prior art, when sampling soil, the hardness of the soil brings many inconveniences to the sampling work. Hard soil, especially soil types with high compaction, such as hardened soil in arid areas or soil containing a large amount of clay and gravel, will significantly hinder the insertion force of the sampler. When using traditional tools, relying on manual pressing or turning to insert the sampler into the soil not only requires a lot of physical strength, but also easily leads to the situation where the tool cannot penetrate the soil or can only collect surface samples, resulting in the inability to obtain soil samples at the target depth. In addition, the high friction and resistance of hard soil will aggravate tool wear, especially the cutting edge or drill bit of the sampler, reducing the service life of the equipment and sampling accuracy. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a sampling device for soil environmental monitoring, which solves the problem of being unable to perform deep soil sampling when sampling hardened soil in arid areas or soil containing a large amount of clay and gravel.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sampling device for soil environmental monitoring, comprising a support plate, fixed frames are fixedly connected to both sides of the support plate, a crushing assembly is provided on the top of the support plate, which is used to crush hard soil, a sampling assembly is provided on the top of the support plate, which is used to sample soil, and a driving assembly is provided at the bottom of the support plate, which is used to drive the entire device to move;

[0007] The crushing assembly includes a fixed plate, which is fixedly connected to the top of the support plate, one side of the fixed plate is fixedly connected to motor three, the output end of motor three is fixedly connected to a gear, the middle of the support plate is slidably connected to a moving rod, one side of the moving rod is fixedly connected to a rack, the rack and the gear are engaged with each other, and a plurality of plows are fixedly connected to the bottom of the moving rod.

[0008] Preferably, the sampling assembly includes a connecting plate 1, which is fixedly connected to the top of the support plate, and the middle part of the connecting plate is slidably connected to the limit rod. The middle part of the connecting plate is fixedly connected to a cylinder, and the output end of the cylinder is fixedly connected to a movable plate, and the middle part of the movable plate is fixedly connected to a sampling bucket. The middle part of the sampling bucket is rotatably connected to an auger, and the outside of the sampling bucket is fixedly connected to a connecting pipe, and the end of the connecting pipe away from the sampling barrel is fixedly connected to a screening box, and the inside of the screening box is fixedly connected to a screening plate, and the middle part of the screening box is slidably connected to a separation box. A power assembly is provided on the outside of the sampling barrel, which is used to drive the auger to rotate, and a screening assembly is provided on one side of the screening box, which is used to hammer the surface of the screening box.

[0009] Preferably, the power assembly includes a connecting frame, the connecting frame is fixedly connected to the outside of the sampling barrel, the end of the connecting frame away from the sampling barrel is fixedly connected to motor 1, the top of the auger is fixedly connected to the output end of motor 1, and two augers are provided, one of which is fixedly connected to pulley 1 on the outer wall of the auger, and the other is fixedly connected to pulley 2 on the outer wall of the auger, and the outer peripheries of pulley 2 and pulley 1 are both provided with synchronous belts.

[0010] Preferably, the screening assembly includes a second connecting plate, which is fixedly connected to one side of the screening box, a second motor is fixedly connected to the top of the second connecting plate, a disc is fixedly connected to the output end of the second motor, a sliding rod is fixedly connected to the top of the disc, a slider is provided on the outer periphery of the sliding rod, a rubber hammer is fixedly connected to one side of the slider, and a limiting assembly is provided on the top of the second connecting plate, which is used to limit the slider when it moves.

[0011] Preferably, the limiting assembly includes a limiting frame, the limiting frame is fixedly connected to the top of the second connecting plate, and the sliding block is slidably connected to the middle of the limiting frame.

[0012] Preferably, a winding block is rotatably connected to the middle of the separation box, a pull rope is fixedly connected to the middle of the winding block, both ends of the pull rope are fixedly connected to a limit plate, one side of the limit plate is fixedly connected to a spring, and the side of the limit plate away from the spring is fixedly connected to a clamping block, a clamping slot is provided inside the screening box, the clamping slot and the clamping block are clamped together, and a connecting component is provided on one side of the winding block, which is used to drive the winding block to rotate.

[0013] Preferably, the connecting assembly includes a rotating rod, the rotating rod is fixedly connected to one side of the winding block, and the end of the rotating rod away from the winding block is fixedly connected to a rotating knob.

[0014] Preferably, the driving assembly includes a support frame, which is fixedly connected to the bottom of the support plate, a double-headed motor is fixedly connected to the middle of the support frame, the output end of the double-headed motor is fixedly connected to a connecting rod, and the end of the connecting rod away from the double-headed motor is fixedly connected to a moving wheel.

[0015] Preferably, a console is fixedly connected to the top of the fixing frame, and the console is used for an operator to control the overall operation of the equipment, and a placement box is fixedly connected to the top of the support plate.

[0016] The present invention provides a sampling device for soil environmental monitoring, which has the following beneficial effects:

[0017] 1. The present invention drives the gear to rotate through the motor. When the gear rotates, it drives the moving rod to move downward through the rack. When the moving rod moves downward, it drives multiple plows to move simultaneously. Therefore, under the action of the plow, the soil can be conveniently crushed, and the depth of the crushed soil can be adjusted, thereby facilitating soil sampling and improving the overall service life and sampling accuracy of the equipment.

[0018] 2. The present invention drives the movable plate to move downward by the cylinder. When the movable plate moves downward, it will drive the two sampling buckets to move downward at the same time. When the sampling bucket moves to the required position, the motor will drive the auger to rotate, so that the soil can be sampled conveniently. After the soil enters the middle of the sampling bucket, it will fall into the interior of the screening box through the connecting pipe. When the soil falls into the interior of the screening box, it will be screened by the screening plate, thereby separating the soil and sand and gravel, and facilitating the detection of the soil.

[0019] 3. The present invention drives the rotating rod to rotate by rotating the knob. When the rotating rod rotates, the pull rope is driven to move through the winding block. When the pull rope moves, it pulls the limit plate to move. When the limit plate moves, it squeezes the spring. When the limit plate squeezes the spring, it drives the card block to move, thereby separating the card block and the card slot, and then the screened soil can be collected, while reducing the labor intensity of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A perspective view of the present invention;

[0021] Figure 2 It is a schematic diagram of the double-headed motor of the present invention;

[0022] Figure 3 is a schematic diagram of a movable plate of the present invention;

[0023] Figure 4 Schematic diagram of the screening box of the present invention;

[0024] Figure 5 A schematic diagram of the auger of the present invention;

[0025] Figure 6 is a schematic diagram of a drawstring of the present invention;

[0026] Figure 7 is a schematic diagram of the disc of the present invention;

[0027] Figure 8 Schematic diagram of the gear of the present invention.

[0028] Among them: 1. Fixed frame; 2. Control console; 3. Moving rod; 4. Plow; 5. Sampling bucket; 6. Fixed plate; 7. Moving wheel; 8. Support plate; 9. Support frame; 10. Double-head motor; 11. Connecting rod; 12. Connecting plate 1; 13. Cylinder; 14. Limiting rod; 15. Motor 1; 16. Movable plate; 17. Connecting pipe; 18. Screening box; 19. Connecting frame; 20. Pulley 1; 21. Synchronous belt; 22. Pulley 2; 23. Auger; 24. Screening plate; 25. Separation box; 26. Slot; 27. Block; 28. Limit plate; 29. Spring; 30. Pull rope; 31. Winding block; 32. Turn bar; 33. Turn knob; 34. Connecting plate 2; 35. Motor 2; 36. Disc; 37. Slide bar; 38. Slider; 39. Rubber hammer; 40. Limit frame; 41. Rack; 42. Gear; 43. Motor 3; 44. Placement box. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Please see the attached Figure 1 and attached Figure 2 An embodiment of the present invention provides a sampling device for soil environment monitoring, including a support plate 8, with fixing frames 1 fixedly connected on both sides of the support plate 8. The fixing frames 1 can conveniently support and fix the support plate 8, thereby making the support plate 8 more stable. A crushing assembly is provided on the top of the support plate 8, which is used to crush hard soil. A sampling assembly is provided on the top of the support plate 8, which is used to sample soil. A driving assembly is provided at the bottom of the support plate 8, which is used to drive the entire device to move.

[0031] Please see the attached Figure 8 The crushing assembly includes a fixed plate 6, which is fixedly connected to the top of the support plate 8. One side of the fixed plate 6 is fixedly connected to a motor 3 43, and the output end of the motor 3 43 is fixedly connected to a gear 42. The middle part of the support plate 8 is slidably connected to a moving rod 3, and one side of the moving rod 3 is fixedly connected to a rack 41. The rack 41 and the gear 42 are engaged with each other, and a plurality of plows 4 are fixedly connected to the bottom of the moving rod 3.

[0032] The fixing plate 6 can conveniently support and fix the motor three 43, so that the motor three 43 is more stable when working. When the motor three 43 is working, it can conveniently drive the gear 42 to rotate. When the gear 42 rotates, it will drive the moving rod 3 to move downward through the rack 41. When the moving rod 3 moves downward, it will drive multiple plows 4 to move downward at the same time, so that the hard soil can be easily crushed, and then the soil can be easily collected and sampled, while improving the overall service life and sampling accuracy of the equipment.

[0033] Please see the attached Figure 3 -Attached Figure 5 The sampling assembly includes a connecting plate 12, which is fixedly connected to the top of the support plate 8. The middle part of the connecting plate 12 is slidably connected to the limit rod 14. The middle part of the connecting plate 12 is fixedly connected to the cylinder 13, and the output end of the cylinder 13 is fixedly connected to the movable plate 16. The middle part of the movable plate 16 is fixedly connected to the sampling barrel 5. The middle part of the sampling barrel 5 is rotatably connected to the auger 23. The outside of the sampling barrel 5 is fixedly connected to a connecting pipe 17, and the end of the connecting pipe 17 away from the sampling barrel 5 is fixedly connected to the screening box 18. The inside of the screening box 18 is fixedly connected to a screening plate 24, and the middle part of the screening box 18 is slidably connected to a separation box 25. A power component is provided on the outside of the sampling barrel 5, which is used to drive the auger 23 to rotate. A screening component is provided on one side of the screening box 18, which is used to hammer the surface of the screening box 18.

[0034] The connecting plate 12 can support and fix the cylinder 13, thereby making the cylinder 13 more stable. When the cylinder 13 is working, it can conveniently drive the movable plate 16 to move downward, and the limit rod 14 can conveniently limit the movable plate 16 to prevent the movable plate 16 from deflecting during movement. When the movable plate 16 moves downward, it will drive the sampling bucket 5 to move downward at the same time, so that the sampling bucket 5 can be inserted into the crushed soil. After the sampling bucket 5 is inserted into the soil, the auger 23 will rotate, and the auger 23 can conveniently transport the soil when rotating, so that the soil enters the interior of the screening box 18 through the connecting pipe 17 for screening, thereby separating the soil and sand and gravel, and facilitating soil testing.

[0035] Please see the attached Figure 5The power assembly includes a connecting frame 19, which is fixedly connected to the outside of the sampling barrel 5. The end of the connecting frame 19 away from the sampling barrel 5 is fixedly connected to the motor 15. The top of the auger 23 is fixedly connected to the output end of the motor 15. There are two auger 23, one of which is fixedly connected to the outer wall of the auger 23 with a pulley 20, and the other is fixedly connected to the outer wall of the auger 23 with a pulley 22. The outer peripheries of the pulley 22 and the pulley 1 20 are both provided with a synchronous belt 21.

[0036] The connecting frame 19 can conveniently support and fix the motor 15, so that the motor 15 is more stable when working. When the motor 15 is working, it can conveniently drive the auger 23 to rotate, and one of the auger 23 will drive the pulley 1 20 to rotate at the same time when it rotates. When the pulley 1 20 rotates, it will drive the pulley 2 22 to rotate at the same time through the synchronous belt 21, and when the pulley 2 22 rotates, it will drive the other auger 23 to rotate, so that the soil can be collected and sampled conveniently and quickly.

[0037] Please see the attached Figure 7 The screening component includes a second connecting plate 34, which is fixedly connected to one side of the screening box 18. A second motor 35 is fixedly connected to the top of the second connecting plate 34, and a disc 36 is fixedly connected to the output end of the second motor 35. A slide rod 37 is fixedly connected to the top of the disc 36. A slider 38 is sleeved on the outer periphery of the slide rod 37, and a rubber hammer 39 is fixedly connected to one side of the slider 38. A limiting component is provided on the top of the second connecting plate 34, which is used to limit the slider 38 when it moves.

[0038] The connecting plate 2 34 can conveniently support and fix the motor 2 35, so that the motor 2 35 is more stable when working. When the motor 2 35 is working, it can conveniently drive the disc 36 to rotate, and the disc 36 will drive the slide bar 37 to move in a circle when rotating. At the same time, the slide bar 37 slides in the middle of the slider 38, so that the slide bar 37 will drive the slider 38 to move in a translational manner when moving in a circle. When the slider 38 moves in a translational manner, it will drive the rubber hammer 39 to move in a translational manner at the same time. When the rubber hammer 39 moves, it will hammer the surface of the screening box 18, causing the screening box 18 to vibrate. When the screening box 18 vibrates, it will drive the screening plate 24 to vibrate at the same time, which can facilitate the screening of the collected soil and separate the soil and sand and gravel.

[0039] Please see the attached Figure 7 The limiting assembly includes a limiting frame 40, which is fixedly connected to the top of the second connecting plate 34, and a slider 38 is slidably connected to the middle of the limiting frame 40.

[0040] The second connecting plate 34 can facilitate supporting and fixing the limiting frame 40 , and the limiting frame 40 can limit the slider 38 , thereby preventing the slider 38 from deviating when moving.

[0041] Please see the attached Figure 6 The middle part of the separation box 25 is rotatably connected to a winding block 31, and the middle part of the winding block 31 is fixedly connected to a pull rope 30. Both ends of the pull rope 30 are fixedly connected to a limit plate 28, and one side of the limit plate 28 is fixedly connected to a spring 29. The side of the limit plate 28 away from the spring 29 is fixedly connected to a card block 27. A card slot 26 is opened inside the screening box 18, and the card slot 26 and the card block 27 are snapped together. A connecting component is provided on one side of the winding block 31, which is used to drive the winding block 31 to rotate.

[0042] The separation box 25 can conveniently collect the screened soil. When the winding block 31 rotates, it will drive the pull rope 30 to move, and when the pull rope 30 moves, it will pull the limit plate 28 to move. When the limit plate 28 moves, it will squeeze the spring 29, and under the action of the spring 29, the limit plate 28 can be ejected and reset. When the limit plate 28 squeezes the spring 29, it will drive the block 27 to move, so that the block 27 is separated from the slot 26. When the block 27 is separated from the slot 26, the screened soil can be conveniently collected, while reducing the labor intensity of the operator.

[0043] Please see the attached Figure 6 The connecting assembly includes a rotating rod 32, which is fixedly connected to one side of the winding block 31, and a rotating knob 33 is fixedly connected to one end of the rotating rod 32 away from the winding block 31.

[0044] The knob 33 can facilitate the staff to drive the rotating rod 32 to rotate. When the rotating rod 32 rotates, the winding block 31 will be driven to rotate at the same time, thereby conveniently driving the pull rope 30 to move, and then the pull rope 30 can be wound.

[0045] Please see the attached Figure 2 The driving assembly includes a support frame 9, which is fixedly connected to the bottom of the support plate 8. A double-headed motor 10 is fixedly connected to the middle of the support frame 9. The output end of the double-headed motor 10 is fixedly connected to a connecting rod 11, and the end of the connecting rod 11 away from the double-headed motor 10 is fixedly connected to the moving wheel 7.

[0046] The support frame 9 can conveniently support and fix the double-headed motor 10, so that the double-headed motor 10 is more stable when working. When the double-headed motor 10 is working, it can conveniently drive the connecting rod 11 to rotate, and when the connecting rod 11 rotates, it will drive the moving wheel 7 to rotate at the same time. When the moving wheel 7 rotates, it can conveniently drive the entire equipment to move, thereby reducing the labor intensity of the operator.

[0047] Please see the attached Figure 1 and attached Figure 2 A console 2 is fixedly connected to the top of the fixing frame 1. The console 2 is used by the operator to control the overall operation of the equipment. A placement box 44 is fixedly connected to the top of the support plate 8. The placement box 44 can conveniently place the tools needed for maintenance of the entire equipment.

[0048] Working principle: When crushing hard soil, start the double-headed motor 10. When the double-headed motor 10 is working, it will drive the connecting rod 11 to rotate, and when the connecting rod 11 rotates, it will drive the moving wheel 7 to rotate at the same time, so that the equipment can move as a whole. When the equipment moves as a whole, the motor 3 43 will work, and when the motor 3 43 works, it will drive the gear 42 to rotate, and when the gear 42 rotates, it will drive the moving rod 3 to move downward through the rack 41. When the moving rod 3 moves downward, it will drive multiple plows 4 to move at the same time, so that the hard soil can be crushed.

[0049] When sampling the crushed soil, the cylinder 13 is started. When the cylinder 13 works, it drives the movable plate 16 to move downward. When the movable plate 16 moves downward, it drives the sampling bucket 5 to move downward at the same time, so that the sampling bucket 5 is inserted into the interior of the soil. When the sampling bucket 5 is inserted into the interior of the soil, the motor 15 works. When the motor 15 works, it drives the pulley 1 20 and the auger 23 to rotate. When the pulley 1 20 rotates, it drives the pulley 2 22 to rotate at the same time through the synchronous belt 21. When the pulley 2 22 rotates, it drives another auger 23 to rotate. When the two augers 23 rotate at the same time, they drive the soil to move upward and transport, so that the soil falls into the interior of the screening box 18 through the connecting pipe 17 for screening.

[0050] When the screened soil is to be processed centrally, the knob 33 is manually driven to rotate. When the knob 33 is rotated, the winding block 31 is driven to rotate at the same time through the rotating rod 32. When the winding block 31 rotates, the pull rope 30 is driven to move. When the pull rope 30 moves, the limit plate 28 is pulled to move. When the limit plate 28 moves, the spring 29 is squeezed. When the limit plate 28 squeezes the spring 29, it drives the block 27 to move, so that the block 27 is disengaged from the slot 26. When the block 27 is disengaged from the slot 26, the screening box 18 and the separation box 25 can be separated. After the screening box 18 and the separation box 25 are separated, the screened soil can be processed centrally.

[0051] When the soil is screened, the motor 2 35 is started. When the motor 2 35 is working, it drives the disc 36 to rotate. When the disc 36 rotates, it drives the slide bar 37 to perform a circular motion. When the slide bar 37 performs a circular motion, it drives the slider 38 to translate. When the slider 38 translates, it drives the rubber hammer 39 to move at the same time. When the rubber hammer 39 moves, it hammers the surface of the screening box 18, thereby causing the screening box 18 to vibrate. When the screening box 18 vibrates, it drives the screening plate 24 to vibrate at the same time, thereby screening the soil and separating the soil and sand and gravel.

[0052] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for soil environmental monitoring, comprising a support plate (8), characterized in that: Both sides of the support plate (8) are fixedly connected to a fixing frame (1); a crushing assembly is provided on the top of the support plate (8) for crushing hard soil; a sampling assembly is provided on the top of the support plate (8) for sampling soil; and a driving assembly is provided at the bottom of the support plate (8) for driving the entire device to move; The crushing assembly includes a fixed plate (6), the fixed plate (6) is fixedly connected to the top of the support plate (8), a motor three (43) is fixedly connected to one side of the fixed plate (6), a gear (42) is fixedly connected to the output end of the motor three (43), a moving rod (3) is slidably connected to the middle of the support plate (8), a rack (41) is fixedly connected to one side of the moving rod (3), the rack (41) and the gear (42) are engaged with each other, and a plurality of plows (4) are fixedly connected to the bottom of the moving rod (3).

2. The sampling device for soil environment monitoring according to claim 1, characterized in that: The sampling assembly includes a connecting plate (12), the connecting plate (12) is fixedly connected to the top of the supporting plate (8), the middle of the connecting plate (12) is slidably connected to a limit rod (14), the middle of the connecting plate (12) is fixedly connected to a cylinder (13), the output end of the cylinder (13) is fixedly connected to a movable plate (16), the middle of the movable plate (16) is fixedly connected to a sampling barrel (5), the middle of the sampling barrel (5) is rotatably connected to an auger (23), and the sampling barrel (5) is fixedly connected to a sampling barrel (5). ) is fixedly connected to the outside of the sampling barrel (5) with a connecting pipe (17), the end of the connecting pipe (17) away from the sampling barrel (5) is fixedly connected to a screening box (18), the inside of the screening box (18) is fixedly connected to a screening plate (24), the middle of the screening box (18) is slidably connected to a separation box (25), the outside of the sampling barrel (5) is provided with a power component, which is used to drive the auger (23) to rotate, and one side of the screening box (18) is provided with a screening component, which is used to hammer the surface of the screening box (18).

3. The sampling device for soil environment monitoring according to claim 2, characterized in that: The power assembly includes a connecting frame (19), the connecting frame (19) is fixedly connected to the outside of the sampling barrel (5), the end of the connecting frame (19) away from the sampling barrel (5) is fixedly connected to the motor 1 (15), the top of the auger (23) is fixedly connected to the output end of the motor 1 (15), and two auger (23) are provided, one of the auger (23) is fixedly connected to the outer wall of the pulley 1 (20), and the other auger (23) is fixedly connected to the outer wall of the pulley 2 (22), and the outer peripheries of the pulley 2 (22) and the pulley 1 (20) are both provided with a synchronous belt (21).

4. The sampling device for soil environment monitoring according to claim 2, characterized in that: The screening assembly includes a second connecting plate (34), the second connecting plate (34) is fixedly connected to one side of the screening box (18), the top of the second connecting plate (34) is fixedly connected to a second motor (35), the output end of the second motor (35) is fixedly connected to a disk (36), the top of the disk (36) is fixedly connected to a slide bar (37), the outer periphery of the slide bar (37) is provided with a slider (38), one side of the slider (38) is fixedly connected to a rubber hammer (39), and the top of the second connecting plate (34) is provided with a limiting assembly, which is used to limit the slider (38) when it moves.

5. The sampling device for soil environment monitoring according to claim 4, characterized in that: The limiting assembly includes a limiting frame (40), the limiting frame (40) is fixedly connected to the top of the second connecting plate (34), and the sliding block (38) is slidably connected to the middle of the limiting frame (40).

6. The sampling device for soil environment monitoring according to claim 2, characterized in that: The middle part of the separation box (25) is rotatably connected to a winding block (31), the middle part of the winding block (31) is fixedly connected to a pull rope (30), both ends of the pull rope (30) are fixedly connected to a limit plate (28), one side of the limit plate (28) is fixedly connected to a spring (29), and the side of the limit plate (28) away from the spring (29) is fixedly connected to a clamping block (27), a clamping slot (26) is provided inside the screening box (18), the clamping slot (26) and the clamping block (27) are clamped together, and a connecting component is provided on one side of the winding block (31), which is used to drive the winding block (31) to rotate.

7. The sampling device for soil environment monitoring according to claim 6, characterized in that: The connecting assembly comprises a rotating rod (32), the rotating rod (32) being fixedly connected to one side of the winding block (31), and a rotating knob (33) being fixedly connected to one end of the rotating rod (32) away from the winding block (31).

8. The sampling device for soil environment monitoring according to claim 1, characterized in that: The driving assembly comprises a support frame (9), the support frame (9) is fixedly connected to the bottom of the support plate (8), a double-headed motor (10) is fixedly connected to the middle of the support frame (9), an output end of the double-headed motor (10) is fixedly connected to a connecting rod (11), and an end of the connecting rod (11) away from the double-headed motor (10) is fixedly connected to a moving wheel (7).

9. The sampling device for soil environment monitoring according to claim 1, characterized in that: The top of the fixing frame (1) is fixedly connected to a console (2), and the console (2) is used for an operator to control the operation of the entire device. The top of the support plate (8) is fixedly connected to a placement box (44).

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