A sampling device for soil environmental monitoring

Abstract

The present invention relates to the technical field of soil sampling and discloses a sampling device for soil environment monitoring, comprising a base and a limiting groove, wherein the limiting groove is opened through the middle of the base, an impact mechanism is provided on the top of the base, a stabilizing component is provided on the outside of the impact mechanism, and a sampling mechanism is provided on the inside of the impact mechanism, wherein the impact mechanism comprises a fixing block 1 arranged in a circular array and fixedly connected to the upper surface of the base, and a sliding rod 1 is fixedly connected to the top of the fixing block 1. The sampling device for soil environment monitoring drives the sliding rod 2 to extend inside the groove plate through the fixing block 2, thereby expanding the fixed position of the ground cone and the soil, avoiding the problem of the device being tilted due to uneven ground, preventing the sampling tube from sampling the soil in a tilted manner, thereby avoiding deviation in the sampling depth, and improving the diversity of soil samples.

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 sampling is the process of obtaining representative soil samples from a specific area. It is a crucial foundational task in numerous fields, including soil science research, environmental monitoring, and agricultural production. Its purpose is to infer soil properties, composition, fertility, contamination levels, and other characteristics over a larger area by analyzing a small sample.

[0003] A Chinese invention patent, publication number CN118500800A, discloses a soil sampling device for municipal gardens. The device comprises a fixed plate, a lifting assembly connected to the fixed plate, the lifting plate being connected to the lifting plate at its output end, and a rotating assembly connected to the lifting plate, the rotating plate being rotatably connected to the bottom of the lifting plate via a bracket. The present invention employs a lifting assembly, a rotating assembly, a sampling barrel, and an auxiliary mechanism. The lifting assembly and the rotating assembly drive the sampling barrel to rotate while moving downward, thereby cutting and sampling frozen soil. The auxiliary mechanism also provides real-time ventilation and cooling of the sampling barrel, allowing heat generated by friction to be promptly discharged during the sampling process, thereby effectively improving sample quality and ensuring the accuracy of sample testing.

[0004] In addition, when sampling on harder soil, the soil sample will be squeezed to a certain extent during the rotation process, thereby destroying the original structure of the soil sample. In addition, some stones will inevitably be mixed in the soil. If the stones are not cleaned, the soil content in the soil sample will be reduced, and the resistance of the soil entering the sampling tube will be increased, thereby affecting the sampling rate. When there is more and more soil inside the sampling tube, the gas inside the sampling tube will become larger. If the pressure is not relieved, the looseness of the soil inside the sampling tube will increase, and the soil at different depths will be mixed with each other intermittently, thereby affecting the accuracy of the soil sample test results. Therefore, the greening soil sampling equipment for municipal gardens disclosed in Chinese invention patent CN118500800A cannot filter the stones in the soil and cannot prevent the soil sample from being mixed after loosening, resulting in inaccurate test results. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the present invention provides a sampling device for soil environment monitoring, which has the advantages of stone filtering and preventing soil samples from loosening, and solves the problem of low accuracy of soil sample detection results.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a sampling device for soil environment monitoring, comprising a base and a limit groove, wherein the limit groove is opened through the middle of the base, an impact mechanism is provided on the top of the base, a stabilizing component is provided on the outside of the impact mechanism, and a sampling mechanism is provided on the inside of the impact mechanism.

[0009] Preferably, the impact mechanism includes a fixed block one arranged in a circular array and fixedly connected to the upper surface of the base, the top of the fixed block one is fixedly connected to a sliding rod one, the top of the sliding rod one is fixedly connected to a handle, the lower surface of the top end of the sliding rod one is fixedly connected to a mounting block, the lower surface of the mounting block is fixedly connected to a driving impact rod, the bottom end of the driving impact rod is fixedly connected to an impact plate, and a sliding groove is symmetrically opened inside the impact plate.

[0010] Preferably, there is an electrical connection between the driving impact rod and the external control device.

[0011] Preferably, the impact plate is fixedly connected to the telescopic end of the driving impact rod.

[0012] Preferably, the stabilizing component includes groove plates arranged in a circular array and fixedly connected to the outer wall of the base, the lower surface of the groove plate is fixedly connected to a ground cone, the interior of the groove plate is symmetrically slidably connected to a sliding rod 2, the end of the sliding rod 2 away from the groove plate is fixedly connected to a fixed block 2, the upper surface of the fixed block 2 is fixedly connected to a hinge block 1, the interior of the hinge block 1 is rotatably connected to a support rod, a slide plate is slidably connected to the outer wall of the slide rod 1, and the outer wall of the slide plate is fixedly connected to a hinge block 2 arranged in a circular array.

[0013] Preferably, the second fixing block and the lower surface of the groove plate are both fixedly connected with a ground cone.

[0014] Preferably, one end of the support rod away from the hinge block 1 is rotatably connected to the hinge block 2, and the slide plate and the base are located on the same vertical horizontal plane.

[0015] Preferably, the sampling mechanism includes a sliding rod three that is symmetrically and slidably connected to the inside of the impact plate, a limiting plate is fixedly connected to the outer wall of the middle part of the sliding rod three, the bottom end of the sliding rod three is fixedly connected to a slot plate one, the lower surface of the slot plate one is fixedly connected to a sampling barrel one, a screw is symmetrically threadedly connected to the outer wall of the sampling barrel one, the other end of the screw is threadedly connected to a sampling barrel two, a turntable is threadedly connected between the bottom ends of the sampling barrel one and the sampling barrel two, and filter holes are arranged in a circular array on the outer wall of the turntable, a fixing rod is symmetrically fixedly connected between the limiting plate and the slot plate one, a piston plate is slidably connected to the bottom outer wall of the fixing rod, and a spring is sleeved on the outer wall of the fixing rod.

[0016] Preferably, the size of the combined sampling tube 1 and sampling tube 2 is compatible with the size of the limiting groove.

[0017] Preferably, both ends of the spring are fixedly connected to the limit plate and the piston plate respectively.

[0018] Beneficial effects

[0019] Compared with the prior art, the present invention provides a sampling device for soil environment monitoring, which has the following beneficial effects:

[0020] 1. By driving the second fixed block to extend the second sliding rod inside the groove plate, the fixed position of the ground cone and the soil can be expanded, thereby avoiding the problem of the device tilting due to uneven ground, preventing the sampling tube from sampling the soil in an inclined manner, and thus avoiding deviation in the sampling depth, thereby improving the diversity of soil samples.

[0021] 2. The stones inside the soil are filtered through the filter holes, which reduces the volume of stones in the soil sample, increases the ability to obtain sufficient soil during the sampling process, and thus improves the accuracy of soil monitoring results. At the same time, it also avoids excessive stones increasing the resistance of the soil, which not only prevents the sampling tube from being difficult to insert to the predetermined depth, but also reduces the workload of driving the impact rod, thereby increasing the service life of the equipment.

[0022] 3. The sampling tube is intermittently vented through the piston plate to avoid excessive air pressure inside the sampling tube that causes the soil to become looser, and to prevent the soil at the top of the sampling tube from mixing with the soil in the middle under the action of impact force, thereby ensuring the representativeness of the soil sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a sampling device for soil environment monitoring proposed by the present invention;

[0024] Figure 2This is a schematic diagram of the partial structure of a stabilizing component in a sampling device for soil environment monitoring proposed by the present invention;

[0025] Figure 3 This is a schematic diagram of the positional relationship between the groove plate and the hinge block in a sampling device for soil environment monitoring proposed by the present invention;

[0026] Figure 4 This is a schematic diagram of the positional relationship between the driving impact rod and the base in a sampling device for soil environment monitoring proposed by the present invention;

[0027] Figure 5 This is a schematic diagram of the partial structure of the impact mechanism in a sampling device for soil environment monitoring proposed by the present invention;

[0028] Figure 6 This is a schematic diagram of the partial structure of a sampling mechanism in a sampling device for soil environment monitoring proposed by the present invention;

[0029] Figure 7 This is a schematic diagram of the positional relationship between the sliding rod 3 and the slot plate 1 in a sampling device for soil environment monitoring proposed by the present invention;

[0030] Figure 8 This is a schematic diagram of the positional relationship between a sampling tube and a rotating head in a sampling device for soil environment monitoring proposed by the present invention.

[0031] In the figure: 1. Base; 11. Limiting groove; 2. Impact mechanism; 21. Fixed block 1; 22. Slide rod 1; 23. Handle; 24. Mounting block; 25. Drive impact rod; 26. Impact plate; 27. Slide groove; 3. Stabilizing component; 31. Groove plate; 32. Ground cone; 33. Slide rod 2; 34. Fixed block 2; 35. Articulated block 1; 36. Support rod; 37. Slide plate; 38. Articulated block 2; 4. Sampling mechanism; 41. Slide rod 3; 42. Limiting plate; 43. Groove plate 1; 44. Sampling tube 1; 45. Screw; 46. Sampling tube 2; 47. Rotor; 48. Filter hole; 49. Fixed rod; 410. Piston plate; 411. Spring. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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.

[0033] Example:

[0034] Refer to the attached Figures 1 to 8As shown, a sampling device for soil environment monitoring includes a base 1 and a limiting groove 11. The limiting groove 11 runs through the middle of the base 1. An impact mechanism 2 is provided on the top of the base 1. A stabilizing component 3 is provided on the outside of the impact mechanism 2. A sampling mechanism 4 is provided on the inside of the impact mechanism 2.

[0035] Furthermore, the impact mechanism 2 includes a fixed block 21 arranged in a circular array and fixedly connected to the upper surface of the base 1, the top of the fixed block 21 is fixedly connected to a slide rod 22, the top of the slide rod 22 is fixedly connected to a handle 23, the lower surface of the top of the slide rod 22 is fixedly connected to a mounting block 24, the lower surface of the mounting block 24 is fixedly connected to a driving impact rod 25, and there is an electrical connection between the driving impact rod 25 and the external control device, the bottom end of the driving impact rod 25 is fixedly connected to an impact plate 26, the impact plate 26 is fixedly connected to the telescopic end of the driving impact rod 25, and a slide groove 27 is symmetrically provided inside the impact plate 26. The driving impact rod 25 drives the impact plate 26 to repeatedly impact the limit plate 42, so that the sampling tube can be inserted into the soil to collect and sample the soil.

[0036] It should be noted that the telescopic end of the driving impact rod 25 is extended in a reciprocating impact manner.

[0037] The cam 35 is fixed to the top of the cam 35 and is fixed to the top of the cam 35. The cam 35 is fixed to the top of the cam 35 and is fixed to the top of the cam 35. The cam 35 is fixed to the top of the cam 35 and is fixed to the top of the cam 35.

[0038] Furthermore, the sampling mechanism 4 includes a sliding rod 3 41 symmetrically passing through and slidingly connected to the inside of the impact plate 26, a limiting plate 42 is fixedly connected to the outer wall of the middle part of the sliding rod 3 41, the bottom end of the sliding rod 3 41 is fixedly connected to a slot plate 1 43, the lower surface of the slot plate 1 43 is fixedly connected to a sampling barrel 1 44, a screw 45 is symmetrically threaded on the outer wall of the sampling barrel 1 44, and the other end of the screw 45 is threadedly connected to a sampling barrel 2 46, the size of the sampling barrel 1 44 and the sampling barrel 2 46 after aggregation is adapted to the size of the limiting groove 11, and a rotary head 47 is threadedly connected between the bottom ends of the sampling barrel 1 44 and the sampling barrel 2 46. Filter holes 48 are arranged in a circular array on the outer wall of 47, and a fixing rod 49 is symmetrically fixedly connected between the limit plate 42 and the groove plate 43. A piston plate 410 is slidably connected to the outer wall of the bottom of the fixing rod 49, and a spring 411 is sleeved on the outer wall of the fixing rod 49. The two ends of the spring 411 are respectively fixedly connected to the limit plate 42 and the piston plate 410. The filter holes 48 set in the sampling mechanism 4 device can filter the stones inside the soil. At the same time, under the action of the piston plate 410 and the spring 411, the soil is prevented from entering the interior of the sampling cylinder, which causes the air pressure on the inner wall of the sampling cylinder to increase.

[0039] The following is the working process and principle of the above embodiment:

[0040] The initial state is as follows: the driving impact rod 25 is in an unextended state, the impact plate 26 is at the top end of the slide rod 41, the spring 411 is in an uncontracted state, and the piston plate 410 is at the bottom end of the fixed rod 49.

[0041] The working steps are as follows:

[0042] The operator then moves the slide plate 37 downward on the outer wall of the slide bar 22, so that the slide plate 37 drives the hinge block 23 to move downward synchronously, so that the hinge block 23 drives the bottom end of the support rod 36 connected thereto to start flipping to the side away from the slide plate 37, so that the bottom end of the support rod 36 drives the hinge block 1 35 connected thereto to move synchronously away from the slide plate 37. The movement of one side of the slide plate 37 causes the hinge block 1 35 to drive the fixed block 2 34 to move to the side away from the groove plate 31, so that the fixed block 2 34 drives the sliding rod 2 33 to slide inside the groove plate 31 until the distance between the ground cone 32 connected to the fixed block 2 34 and the ground is not much different. Then the person presses the groove plate 31 downward by stepping on the foot, so that the ground cone 32 fixedly connected to the groove plate 31 is inserted into the soil. Then the groove plate 31 drives the fixed block 2 34 to move downward synchronously through the sliding rod 2 33, so that the ground cone 32 fixedly connected to the fixed block 2 34 is completely inserted into the soil, and the device has a fixing effect; the fixed block 2 34 drives the sliding rod 2 33 to extend inside the groove plate 31, which can expand the fixed position of the ground cone 32 and the soil, thereby avoiding the problem of the device tilting due to uneven ground, preventing the sampling tube from sampling the soil in a tilted manner, thereby avoiding the deviation of the sampling depth, and thus improving the diversity of soil samples.

[0043] Then, the personnel controls the driving impact rod 25 through the external control device to start working, so that the driving impact rod 25 repeatedly drives the impact plate 26 downward to resist the limit plate 42, so that the limit plate 42 drives the slot plate 1 43 to move downward synchronously through the slide bar 3 41, so that the slot plate 1 43 drives the sampling tube 1 44 to move downward synchronously, so that the sampling tube 1 44 drives the sampling tube 2 46 to move downward synchronously through the screw 45, so that the rotating head 47 moves downward synchronously under the action of the sampling tube 1 44 and the sampling tube 2 46, so that the rotating head 47 moves intermittently toward the inside of the soil, so that the rotating head 47 moves downward synchronously under the action of the sampling tube 1 44 and the sampling tube 2 46, so that the rotating head 47 moves intermittently toward the inside of the soil, so that the rotating head 47 moves downward synchronously. The soil around the head 47 enters the interior of the rotor 47 through the filter hole 48, and then enters the interior of the sampling tube 1 44 and the sampling tube 2 46 through the rotor 47; the stones inside the soil are filtered through the filter hole 48, which reduces the volume occupied by the stones in the soil sample, improves the ability to obtain sufficient soil during the sampling process, and thus improves the accuracy of the soil monitoring results. At the same time, it also avoids excessive stones increasing the resistance of the soil, which not only prevents the sampling tube from being difficult to insert into the predetermined depth, but also reduces the workload of driving the impact rod 25, thereby increasing the service life of the equipment.

[0044] When the soil inside the sampling tube 1 44 and the sampling tube 2 46 gradually increases, the air inside the sampling tube 2 46 and the sampling tube 1 44 is compressed, so that the air pressure inside the sampling tube 2 46 and the sampling tube 1 44 increases, so that the air pressure inside the sampling tube 2 46 and the sampling tube 1 44 presses against the piston plate 410 upward, so that the piston plate 410 slides vertically upward on the outer wall of the fixing rod 49, so that the piston plate 410 presses against the spring 411 and begins to contract upward until the piston plate 410 moves to a position where it no longer blocks the interior of the sampling tube 1 44 and the sampling tube 2 46. At this time, the interior of the sampling tube 2 46 and the sampling tube 1 44 is The atmospheric pressure enters the air through the gap at the bottom of the piston plate 410 until the air pressure inside the sampling cylinder 1 44 and the sampling cylinder 2 46 is the same as the air pressure in the air. At this time, the piston plate 410 moves downward under the elastic action of the spring 411, so that the piston plate 410 moves to the position for sealing the interior of the sampling cylinder 1 44 and the sampling cylinder 2 46 again. The sampling cylinder is intermittently vented by the piston plate 410, which avoids the increase of soil looseness due to excessive air pressure inside the sampling cylinder and prevents the soil at the top of the sampling cylinder from mixing with the soil in the middle under the action of the impact force, thereby ensuring the representativeness of the soil sample.

[0045] Then, by driving the impact rod 25 to repeatedly intermittently punch the top of the sampling tube, the sampling tube drives the rotor 47 to intermittently extend into the interior of the soil, and then the soil enters the interior of the rotor 47 through the filter hole 48 opened on the outer wall of the rotor 47, and then slowly enters the interior of the sampling barrel, and finally the soil is collected and sampled.

[0046] It should be noted that the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0047] 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 environment monitoring, comprising a base (1) and a limiting groove (11), wherein the limiting groove (11) is provided through the middle of the base (1), and is characterized in that: An impact mechanism (2) is provided on the top of the base (1), a stabilizing component (3) is provided on the outside of the impact mechanism (2), and a sampling mechanism (4) is provided on the inside of the impact mechanism (2); The impact mechanism (2) includes a fixed block (21) arranged in a circular array and fixedly connected to the upper surface of the base (1), the top of the fixed block (21) is fixedly connected to a slide rod (22), the top of the slide rod (22) is fixedly connected to a handle (23), the lower surface of the top of the slide rod (22) is fixedly connected to a mounting block (24), the lower surface of the mounting block (24) is fixedly connected to a driving impact rod (25), the bottom end of the driving impact rod (25) is fixedly connected to an impact plate (26), and a sliding groove (27) is symmetrically opened inside the impact plate (26); The sampling mechanism (4) includes a sliding rod (41) symmetrically passing through and slidingly connected to the inside of the impact plate (26), a limiting plate (42) is fixedly connected to the outer wall of the middle part of the sliding rod (41), a groove plate (43) is fixedly connected to the bottom end of the sliding rod (41), a sampling barrel (44) is fixedly connected to the lower surface of the groove plate (43), a screw (45) is symmetrically threaded on the outer wall of the sampling barrel (44), and the other end of the screw (45) is threadedly connected to Sampling tube 2 (46), a rotating head (47) is threadedly connected between the bottom ends of the sampling tube 1 (44) and the sampling tube 2 (46), and filter holes (48) are arranged in a circular array on the outer wall of the rotating head (47), and a fixing rod (49) is symmetrically fixedly connected between the limit plate (42) and the groove plate 1 (43), a piston plate (410) is slidably connected to the outer wall of the bottom of the fixing rod (49), and a spring (411) is sleeved on the outer wall of the fixing rod (49).

2. The sampling device for soil environment monitoring according to claim 1, characterized in that: There is an electrical connection between the driving impact rod (25) and the external control device.

3. The sampling device for soil environment monitoring according to claim 2, characterized in that: The impact plate (26) is fixedly connected to the telescopic end of the driving impact rod (25).

4. The sampling device for soil environment monitoring according to claim 3, characterized in that: The stabilizing component (3) includes a groove plate (31) arranged in an annular array and fixedly connected to the outer wall of the base (1), the lower surface of the groove plate (31) is fixedly connected to a ground cone (32), the interior of the groove plate (31) is symmetrically slidably connected to a second slide bar (33), the end of the second slide bar (33) away from the groove plate (31) is fixedly connected to a second fixed block (34), the upper surface of the second fixed block (34) is fixedly connected to a first hinge block (35), the interior of the first hinge block (35) is rotatably connected to a support rod (36), the outer wall of the first slide bar (22) is slidably connected to a slide plate (37), and the outer wall of the slide plate (37) is fixedly connected to a second hinge block (38) arranged in an annular array.

5. The sampling device for soil environment monitoring according to claim 4, characterized in that: The lower surfaces of the second fixing block (34) and the groove plate (31) are both fixedly connected with a ground cone (32).

6. The sampling device for soil environment monitoring according to claim 4, characterized in that: One end of the support rod (36) away from the hinge block 1 (35) is rotatably connected to the hinge block 2 (38), and the slide plate (37) and the base (1) are located on the same vertical horizontal plane.

7. The sampling device for soil environment monitoring according to claim 4, characterized in that: The size of the sampling tube 1 (44) and the sampling tube 2 (46) after being aggregated is compatible with the size of the limiting groove (11).

8. The sampling device for soil environment monitoring according to claim 4, characterized in that: The two ends of the spring (411) are fixedly connected to the limiting plate (42) and the piston plate (410) respectively.

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