Soil sampling device for environmental remediation

Abstract

The invention discloses a soil sampling device for environmental remediation, belongs to the technical field of environmental remediation, and aims to solve the problems that a spiral blade can destroy the in-situ structure and hierarchy of soil and influence the accuracy of a result, and broken stones on the surface layer of the soil can damage a spiral conveying blade. The soil sampling device comprises a shell, a handle is fixedly connected to the side wall of the shell, a first motor is fixedly connected to the top end in the shell, a threaded rod is rotatably arranged on the shell, one end of the threaded rod penetrates into the shell and is fixedly connected with the output end of the first motor, and a support sleeves the outer side of the threaded rod. According to the soil sampling device, gravel on the surface layer of soil can be cleaned, abrasion of the gravel to a drill bit is avoided, the service life of the sampling device is prolonged, meanwhile, soil of various depths can be sampled, the sampling amount of soil samples is ensured, and follow-up workers can conveniently and accurately detect specific components of the soil.

Description

Technical Field

[0001] The invention relates to the technical field of environmental restoration, in particular to a soil sampling device for environmental restoration. Background Art

[0002] Soil is the surface of the earth's land, composed of minerals, organic matter, water, air and organisms. It is the basis for plant growth and development. The ability of soil to supply plants with the water, fertilizer, air and heat required for normal growth and development is called soil fertility. In order to evaluate the health of the ecosystem, agricultural productivity, land use changes and the effectiveness of environmental protection measures, it is necessary to accurately monitor the soil, and soil sampling is a key link in soil monitoring. Through soil sampling, information on the physical, chemical and biological properties of the soil can be obtained, providing a scientific basis for soil improvement, environmental protection and agricultural production. However, the existing soil sampling devices still have certain shortcomings when used.

[0003] For example, a soil sampling device with the announcement number CN218330701U descends downward through the rotation of spiral conveying blades and insert blocks, and can be inserted into the soil. When the spiral conveying blades rotate, they can convey the soil to achieve the purpose of sampling the soil. By providing a collecting box and cooperating with a feed port, the sampled soil can enter the collecting box to complete the sampling work. The sampling is relatively convenient and does not require manual labor. During the sampling process, the sampling tube can be inserted into the deep soil, which effectively solves the problem of manual sampling in the soil sampling process, which not only increases the workload and has safety hazards but also cannot sample deep soil. However, drilling into the soil for sampling by a spiral auger will destroy the in-situ structure and layering of the soil, and a small amount of soil from different soil layers will be mixed during the drilling process, affecting the accuracy of the results. At the same time, gravel on the surface of the soil may damage the spiral conveying blades and reduce the service life of the equipment.

[0004] Therefore, a soil sampling device for environmental remediation is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a soil sampling device for environmental remediation to solve the problem raised in the above background technology that the sampling equipment currently on the market drills into the soil through a spiral auger to take samples, which will destroy the in-situ structure and layering of the soil, and will mix a small amount of soil from different soil layers during the drilling process, affecting the accuracy of the results. At the same time, the gravel on the surface of the soil may damage the spiral conveying blades, reducing the service life of the equipment.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: A soil sampling device for environmental remediation, comprising a shell, two sets of rollers are arranged at the bottom end of the shell, a handle is fixedly connected to the side wall of the shell, and a first motor is fixedly connected to the top end of the shell;

[0007] Also includes:

[0008] A threaded rod is rotatably arranged on the housing, one end of the threaded rod extends into the housing and is fixedly connected to the output end of the first motor, a bracket is sleeved on the outer side of the threaded rod, and the bracket is fixedly connected to the second motor, a through hole is opened on the bracket, and a convex block is fixedly connected in the through hole;

[0009] A rotating rod is rotatably arranged on the housing, a spiral groove is formed on the rotating rod, and an outer side of the rotating rod below the spiral groove is sleeved on the gear column;

[0010] There are two slide grooves, the two slide grooves are symmetrically opened on the side walls of the shell on one side, and sliders are arranged in the two slide grooves, and the side walls of the two sliders on one side are fixedly connected to support plates, the side walls of the two support plates on one side are fixedly connected to moving parts, and the inner wall of the moving part is fixedly connected to a tooth block;

[0011] A bulldozer plate, fixedly arranged on the support plate;

[0012] A connecting frame is fixedly arranged at the output end of the second motor, an electric push rod is fixedly installed on the connecting frame, a fixing block is fixedly connected to the connecting frame on the side of the electric push rod, a drill bit is fixedly connected to the bottom end of the fixing block, and a piston cavity is opened in the fixing block, a first piston block is movably connected in the piston cavity, and a piston rod is fixedly connected to the side wall of the first piston block;

[0013] The sampling mechanism is arranged in the drill bit and is used for realizing soil sampling.

[0014] Preferably, the rotating rod is arranged in a through hole on the bracket, and the rotating rod is fixedly connected to the gear column, and one end of the protrusion in the through hole extends into the spiral groove and is slidingly connected to the inner wall of the spiral groove. The spiral groove consists of two parts, the upper part of the spiral groove is spiral-shaped, and the lower part of the spiral groove is transformed into a linear structure, and the bracket is threadedly engaged with the threaded rod.

[0015] Preferably, the slide groove is composed of a straight groove connected to an oblique groove, and the slide groove is slidably connected to the slider, the support plate on the slider is set in an "L" shape, and the support plate under the bracket is slidably connected to the shell, and the bulldozer plate on the support plate is located at the bottom of the shell, and the tooth block array is provided with multiple teeth, and the tooth blocks are meshed with the gear columns.

[0016] Preferably, one end of the piston rod extends through the fixed block and is fixedly connected to the second spring output end, and the piston rod is slidably connected to the fixed block, and the electric push rod, the piston chamber, the first piston block and the piston rod are all symmetrically arranged with two of them about the fixed block, and hydraulic oil is arranged in the piston chamber of the first piston block away from one end of the piston rod.

[0017] Preferably, the sampling mechanism comprises a first slot, a sampling barrel, a first push rod, a second piston block and a first cavity;

[0018] There are two first slots, the two first slots are symmetrically arranged on the side wall of the drill bit, and a sampling barrel is slidably connected in the first slot;

[0019] The first cavity is symmetrically arranged in two groups. The first cavity is opened in the drill bit on the side of the first slot, and the second piston block is slidably connected in the first cavity. The end of the first push rod away from the second piston block extends into the first slot and is fixedly connected to the sampling barrel.

[0020] Preferably, a first spring is connected between the second piston block and the first cavity, and the second piston block and the first cavity form an elastic telescopic structure through the first spring, and the first spring is sleeved on the outside of the first push rod, and the first cavity is connected to the piston cavity through a pipeline.

[0021] Preferably, the sampling mechanism further comprises a sampling groove, a sampling sleeve, a second cavity, a third piston block, a second push rod, a guide groove, a guide block and a second air bag;

[0022] A sampling slot is provided on the drill bit, the sampling slot array is provided with a plurality of sampling slots, and each sampling slot is provided with a sampling sleeve;

[0023] A second cavity is provided in the drill bit at the side of the sampling slot, a plurality of second cavities are provided in the array, and a third piston block is slidably connected in each of the second cavities, and a second push rod is rotatably connected to the side wall of the third piston block, and a guide groove is provided on the second push rod;

[0024] A guide block, fixedly disposed in the drill bit above the guide groove;

[0025] The second air bag is arranged in the sampling groove.

[0026] Preferably, the sampling sleeve comprises a sampling shell, a partition member and a first air bag;

[0027] The sampling shell is movably arranged in the sampling groove, the inner wall of the sampling shell is movably connected with a partition piece, and a first air bag is fixedly connected between the partition piece and the inner wall of the sampling shell, and a barb is arranged on the inner side of the opening end of the sampling shell.

[0028] Preferably, the sampling groove corresponds to the second cavity one by one, and the sampling groove and the second cavity are both arranged at an incline, one end of the second push rod away from the third piston block extends into the sampling groove and is fixedly connected to the sampling sleeve, and the second airbag in the sampling groove is sleeved on the outer wall of the second push rod, one end of the second airbag is fixedly connected to the inner wall of the sampling groove, and one end of the second airbag away from the inner wall of the sampling groove is fitted with the outer wall of the sampling sleeve, and the second airbag is connected to the first airbag through a pipe, and the partition member is arranged as an elastic structure.

[0029] Preferably, the guide block is arranged between the sampling groove and the second cavity, and one end of the guide block away from the inner wall of the drill bit extends into the guide groove, and the guide block is slidably connected to the guide groove, the guide groove is threaded, and the second push rod is movably connected to the drill bit, a second spring is sleeved on the outer side of the second push rod, and the second spring is arranged in the second cavity, one end of the second spring is fixedly connected to the side wall of the third piston block, and one end of the second spring away from the third piston block is in contact with the inner wall of the second cavity, and the second cavity is connected to the second piston cavity through a pipe.

[0030] Compared with the prior art, the beneficial effects of the present invention are: the soil sampling device for environmental remediation can clean the gravel on the soil surface, avoid the wear of the drill bit by the gravel, and extend the service life of the sampling equipment. At the same time, it can sample soil at various depths, ensure the sampling amount of soil samples, and facilitate subsequent staff to accurately detect the specific components of the soil. The specific contents are as follows:

[0031] 1. It is provided with a protrusion, a rotating rod and a spiral groove. When taking soil samples, the bracket will drive the protrusion to move, so that the protrusion slides along the spiral groove, thereby driving the rotating rod to rotate. The rotating rod will drive the gear column to rotate, so that the gear column meshing tooth block drives the moving part to move, and the moving part drives the support plate to move, so that the slider on the support plate slides along the slide groove, thereby driving the bulldozer to move downward first, so that the bottom end of the bulldozer extends into the soil surface, and then changes from downward to lateral movement, pushing the gravel and impurities at the front end of the bulldozer forward, so that the gravel and impurities are away from the drill bit, avoiding the wear of the drill bit by the gravel and impurities, ensuring that the soil samples obtained are purer while extending the service life of the equipment.

[0032] 2. A piston chamber and a first piston block are provided, and the piston rod is pushed to move by an electric push rod, so that the piston rod drives the first piston block to slide in the piston chamber, thereby transporting the hydraulic oil in the piston chamber to the second cavity through a pipeline, so that the third piston block drives the second push rod and the sampling sleeve to move at the same time, so that the sampling sleeve extends out of the drill bit for layered sampling, and during the movement of the second push rod, the guide block will move along the guide groove, thereby driving the second push rod to rotate, so that the second push rod drives the sampling sleeve to rotate while moving, reducing the sampling difficulty caused by soil resistance, thereby improving the overall sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 It is a bottom view structural schematic diagram of the present invention;

[0035] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0036] Figure 4 It is a schematic diagram of the internal structure of the housing of the present invention;

[0037] Figure 5 This is a schematic diagram of the expanded structure of the sampling barrel of the present invention;

[0038] Figure 6 This is a schematic diagram of the main cross-sectional structure of the drill bit of the present invention;

[0039] Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle;

[0040] Figure 8 It is a schematic diagram of the side section structure of the drill bit of the present invention;

[0041] Fig. 9 For the present invention Figure 8 The enlarged structural diagram at C in the middle;

[0042] Fig.10 This is a schematic diagram of the overall structure of the sampling barrel of the present invention;

[0043] Fig.11 This is a schematic diagram of the main cross-sectional structure of the sampling sleeve of the present invention.

[0044] In the figure: 1, housing; 2, roller; 3, first motor; 4, threaded rod; 5, bracket; 6, second motor; 7, through hole; 8, bump; 9, rotating rod; 10, spiral groove; 11, gear column; 12, slide groove; 13, slider; 14, support plate; 15, moving part; 16, gear block; 17, bulldozer plate; 18, second spring; 19, connecting frame; 20, electric push rod; 21, fixed block; 22, drill bit; 23, piston chamber; 24, first piston block; 25, piston rod; 26, take Sampling mechanism; 2601, first slot; 2602, sampling barrel; 2603, first push rod; 2604, second piston block; 2605, first cavity; 2606, first spring; 2607, sampling slot; 2608, sampling sleeve; 2609, partition member; 2610, first air bag; 2611, second cavity; 2612, third piston block; 2613, second push rod; 2614, guide slot; 2615, guide block; 2616, second air bag; 2617, sampling shell. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0046] Example 1: Please refer to Figure 1-Figure 11 As shown, the present invention provides a technical solution: a soil sampling device for environmental remediation, comprising a shell 1, two sets of rollers 2 are arranged at the bottom end of the shell 1, a handle is fixedly connected to the side wall of the shell 1, and a first motor 3 is fixedly connected to the top end of the shell 1.

[0047] The technical solution utilizes the setting of the roller 2. When in use, the handle is pushed to make the roller 2 roll in contact with the ground. The rolling of the roller 2 drives the shell 1 to move as a whole. The operator can adjust the direction as needed until the shell 1 is moved to a predetermined soil sampling point. Further, a positioning nail is driven into the ground to fix the shell 1, and then the first motor 3 is started, so that the first motor 3 drives the drill bit 22 to move downward, and then the drill bit 22 is inserted into the soil for sampling. After the sampling is completed, the drill bit 22 can be pulled out of the soil.

[0048] Embodiment 2: The technical content disclosed in this embodiment is an improvement made on the basis of the above-mentioned embodiment 1. Since the gravel on the surface of the soil may damage the spiral conveying blades and reduce the service life of the equipment, this technical solution is as follows: Figure 1-Figure 4As shown, a cleaning component of a sampling device is disclosed, wherein a threaded rod 4 is rotatably arranged on a housing 1, one end of the threaded rod 4 penetrates into the housing 1 and is fixedly connected to an output end of a first motor 3, and a bracket 5 is sleeved on the outer side of the threaded rod 4, and a second motor 6 is fixedly connected to the bracket 5, a through hole 7 is provided on the bracket 5, and a protrusion 8 is fixedly connected in the through hole 7, a rotating rod 9 is rotatably arranged on the housing 1, a spiral groove 10 is provided on the rotating rod 9, and the outer side of the rotating rod 9 below the spiral groove 10 is sleeved on a gear column 11, two slide grooves 12 are provided, and the two slide grooves 12 are symmetrically arranged on the side walls of opposite sides of the housing 1, and sliders 13 are arranged in the two slide grooves 12, and support plates 14 are fixedly connected to the side walls of opposite sides of the two sliders 13, and moving parts 15 are fixedly connected to the side walls of opposite sides of the two support plates 14, and the inner wall of the moving part 15 is fixedly connected A tooth block 16 is connected, a bulldozer blade 17 is fixedly arranged on the support plate 14, a rotating rod 9 is arranged in the through hole 7 on the bracket 5, and the rotating rod 9 is fixedly connected to the gear column 11, and one end of the protrusion 8 in the through hole 7 extends into the spiral groove 10 and is slidably connected to the inner wall of the spiral groove 10. The spiral groove 10 consists of two parts, the upper part of the spiral groove 10 is spiral, and the lower part of the spiral groove 10 is transformed into a straight structure. The bracket 5 is threadedly engaged with the threaded rod 4, the slide groove 12 is composed of a section of straight groove and an oblique groove connected, and the slide groove 12 is slidably connected to the slider 13, the support plate 14 on the slider 13 is an "L"-shaped structure, and the support plate 14 below the bracket 5 is slidably connected to the shell 1, and the bulldozer blade 17 on the support plate 14 is located at the bottom end of the shell 1, and a plurality of tooth blocks 16 are arranged in an array, and the tooth blocks 16 are engaged with the gear column 11.

[0049] In this technical solution, Figure 1 As shown, by utilizing the arrangement of the slide groove 12 and the slider 13, the gear column 11 will drive the slider 13 to move along the slide groove 12 through the moving member 15 and the support plate 14 during the rotation, so that the bulldozer 17 will first move downward along the slide groove 12 during the movement to insert the end into the soil surface, and then convert into linear motion, pushing the gravel and impurities on the soil surface forward and away from the drill bit 22, thereby reducing the time and cost of manual cleaning.

[0050] Its use is as Figure 2-Figure 4The technical solution shown in the figure, first, when sampling, the first motor 3 will drive the threaded rod 4 to rotate, so that the threaded rod 4 engages and drives the bracket 5 to move downward, the bracket 5 will drive the protrusion 8 to move, so that the protrusion 8 slides along the spiral groove 10, driving the rotating rod 9 to rotate, the rotating rod 9 will drive the gear column 11 to rotate, so that the gear column 11 engages the tooth block 16 to drive the moving member 15 to move, the moving member 15 will drive the support plate 14 to move, so that the support plate 14 drives the slider 13 to slide along the slide groove 12, because one end of the slide groove 12 is in the form of an inclined groove, when When this sliding process reaches the end of the inclined groove, the shape of the slide groove 12 will smoothly transition to a straight groove portion, thereby driving the bulldozer 17 to move downward first, so that the bottom end of the bulldozer 17 extends into the soil surface, and then changes from downward movement to lateral movement, pushing the gravel and impurities at the front end of the bulldozer 17 forward, so that the gravel and impurities are away from the drill bit 22. When the slider 13 moves to the end of the slide groove 12, the protrusion 8 will move along the straight part of the spiral groove 10, thereby stopping the rotating rod 9 from rotating, preventing the bulldozer 17 from moving in the opposite direction.

[0051] Embodiment 3: The technical content disclosed in this embodiment is a further improvement based on the above-mentioned embodiments 1 and 2. Since the sampling is carried out by drilling into the soil through a spiral auger, the in-situ structure and layering of the soil will be destroyed, and a small amount of soil from different soil layers will be mixed during the drilling process, affecting the accuracy of the results. In order to further solve this technical problem, the technical solution of this invention is as follows: Figure 5-Figure 11As shown, a sampling assembly of a sampling device is disclosed, wherein a connecting frame 19 is fixedly arranged at the output end of the second motor 6, an electric push rod 20 is fixedly installed on the connecting frame 19, a fixing block 21 is fixedly connected to the connecting frame 19 on the side of the electric push rod 20, and a drill bit 22 is fixedly connected to the bottom end of the fixing block 21, and a piston cavity 23 is opened in the fixing block 21, a first piston block 24 is movably connected in the piston cavity 23, and a piston rod 25 is fixedly connected to the side wall of the first piston block 24, a sampling mechanism 26 is arranged in the drill bit 22, and is used to realize soil sampling, one end of the piston rod 25 penetrates and extends out of the fixing block 21 and is fixedly connected to the output end of the second spring 18, and the piston rod 25 is slidably connected to the fixing block 21, and the electric push rod 20, the piston cavity 23, and the first piston The blocks 24 and the piston rods 25 are symmetrically arranged with respect to the fixed block 21. Hydraulic oil is arranged in the piston chamber 23 of the first piston block 24 away from the end of the piston rod 25. The sampling mechanism 26 includes a first slot 2601. There are two first slots 2601. The two first slots 2601 are symmetrically arranged on the side wall of the drill bit 22. The first slots 2601 are slidably connected with the sampling barrel 2602. The first cavities 2605 are symmetrically arranged with two groups. The first cavities 2605 are opened in the drill bit 22 on the side of the first slots 2601. The first cavities 2605 are slidably connected with the second piston blocks 2604. The ends of the first push rods 2603 away from the second piston blocks 2604 penetrate into the first slots 2601 and are connected with the sampling barrel 2602. 2 is fixedly connected, a first spring 2606 is connected between the second piston block 2604 and the first cavity 2605, and the second piston block 2604 and the first cavity 2605 form an elastic telescopic structure through the first spring 2606, and the first spring 2606 is sleeved on the outside of the first push rod 2603, and the first cavity 2605 is connected to the piston cavity 23 through a pipeline, and the sampling mechanism 26 also includes a sampling groove 2607, the sampling groove 2607 is opened on the drill bit 22, and the sampling groove 2607 is arranged in a plurality of arrays, and a sampling sleeve 2608 is arranged in each of the sampling grooves 2607, and the second cavity 2611 is opened in the drill bit 22 on the side of the sampling groove 2607, and the second cavity 2611 is arranged in a plurality of arrays ... The third piston block 2612 is slidably connected, and the side wall of the third piston block 2612 is rotatably connected to the second push rod 2613, the second push rod 2613 is provided with a guide groove 2614, the guide block 2615 is fixedly arranged in the drill bit 22 above the guide groove 2614, the second air bag 2616 is arranged in the sampling groove 2607, the sampling sleeve 2608 includes a sampling shell 2617, the sampling shell 2617 is movably arranged in the sampling groove 2607, the inner wall of the sampling shell 2617 is movably connected with a partition member 2609, and the first air bag 2610 is fixedly connected between the partition member 2609 and the inner wall of the sampling shell 2617, and the inner side of the open end of the sampling shell 2617 is provided with a barb, and the sampling groove 2607 corresponds to the second cavity 2611 one by one.The sampling groove 2607 and the second cavity 2611 are both inclined, one end of the second push rod 2613 away from the third piston block 2612 penetrates into the sampling groove 2607 and is fixedly connected to the sampling sleeve 2608, and the second airbag 2616 in the sampling groove 2607 is sleeved on the outer wall of the second push rod 2613, one end of the second airbag 2616 is fixedly connected to the inner wall of the sampling groove 2607, and one end of the second airbag 2616 away from the inner wall of the sampling groove 2607 is in contact with the outer wall of the sampling sleeve 2608, and the second airbag 2616 is connected to the first airbag 2610 through a pipeline, the partition member 2609 is an elastic structure, and the guide block 2615 is arranged in the sampling groove. 2607 and the second cavity 2611, and one end of the guide block 2615 away from the inner wall of the drill bit 22 extends into the guide groove 2614, and the guide block 2615 is slidably connected with the guide groove 2614, the guide groove 2614 is threaded, and the second push rod 2613 is movably connected with the drill bit 22, the second push rod 2613 is sleeved with a second spring 18 outside, and the second spring 18 is arranged in the second cavity 2611, one end of the second spring 18 is fixedly connected to the side wall of the third piston block 2612, and the end of the second spring 18 away from the third piston block 2612 is in contact with the inner wall of the second cavity 2611, and the second cavity 2611 is connected with the second piston cavity 23 through a pipeline.

[0052] In this technical solution, Fig.11 As shown, by utilizing the arrangement of the partition member 2609, the first air bag 2610 and the second air bag 2616, when sampling is completed, the sampling shell 2617 will rotate and retract into the sampling slot 2607, so that the sampling shell 2617 squeezes the second air bag 2616, thereby transporting the gas in the second air bag 2616 to the first air bag 2610 through a pipeline, causing the first air bag 2610 to expand, thereby squeezing the partition member 2609, causing the partition member 2609 to arch, squeezing the soil in the sampling shell 2617, squeezing out the water and air in the soil, and improving the efficiency of subsequent soil analysis, processing or storage.

[0053] Its use is as Figure 5-Figure 10 According to the technical solution shown, when vertical sampling is required, the electric push rod 20 is started, and the electric push rod 20 drives the piston rod 25 to move, so that the piston rod 25 slides along the inner wall of the fixed block 21 and pushes the first piston block 24 to slide in the piston cavity 23, and the hydraulic oil stored in the piston cavity 23 is transported to the first cavity 2605 through the pipeline, thereby pushing the second piston block 2604 to slide along the inner wall of the first cavity 2605, and the second piston block 2604 drives the first push rod 2603 to move synchronously, which squeezes the first spring 2606 to contract, so that the first push rod 2603 pushes the sampling barrel 2602 to extend out of the first slot 2601;

[0054] The second spring 18 is started, and the second spring 18 drives the connecting frame 19 to rotate, so that the connecting frame 19 drives the fixing block 21 and the drill bit 22 to rotate synchronously. Since the bottom end of the sampling barrel 2602 is provided with an angled opening, during the rotation of the drill bit 22, the soil will enter the sampling barrel 2602 through the angled opening at the bottom end of the sampling barrel 2602 for sampling. Through the setting of the first spring 2606, after the sampling is completed and the sample in the sampling barrel 2602 is taken out, the elastic force of the first spring 2606 drives the first push rod 2603 to reset and move, thereby driving the sampling barrel 2602 to enter the first slot 2601, which is convenient for next use.

[0055] When stratified sampling is required, the drill bit 22 will be inserted into the predetermined position in the soil first, and the second electric push rod 20 will be further started. The second electric push rod 20 will drive the second piston rod 25 and the first piston block 24 to move, and the hydraulic oil in the second piston chamber 23 will be transported to the second cavity 2611 through the pipeline. At this time, the third piston block 2612 will slide along the inner wall of the second cavity 2611, and the third piston block 2612 will squeeze the second spring 18 to contract while driving the second push rod 2613 to move. The second push rod 2613 will drive the sampling shell 2617 to extend obliquely downward from the sampling groove 2607. At the same time, the guide block 2615 will move along the guide groove 2614 on the second push rod 2613, driving the second push rod 2613 to rotate, so that the second push rod 2613 drives the sampling shell 2617 to rotate, which is convenient for cutting the soil. The soil that further enters the sampling shell 2617 will squeeze the partition piece 2609, making the partition piece 2609 tend to be straight. After the sampling is completed, the second electric push rod 20 is controlled to reset and move, so that the second push rod 2613 pulls the sampling shell 2617 to reset under the elastic force of the second spring 18. At this time, the sampling shell 2617 will squeeze the second air bag 2616, causing the second air bag 2616 to shrink, thereby transporting the gas in the second air bag 2616 to the first air bag 2610 through the pipeline. The first air bag 2610 will squeeze the partition piece 2609, causing the partition piece 2609 to bulge, thereby squeezing the soil in the sampling shell 2617 and expelling the remaining air and water in the soil.

[0056] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0057] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A soil sampling device for environmental remediation, comprising a housing (1), wherein two groups of rollers (2) are arranged at the bottom end of the housing (1), a handle is fixedly connected to the side wall of the housing (1), and a first motor (3) is fixedly connected to the top end of the housing (1); It is characterized in that Also includes: A threaded rod (4) is rotatably mounted on the housing (1), one end of the threaded rod (4) extends into the housing (1) and is fixedly connected to the output end of the first motor (3), a bracket (5) is sleeved on the outer side of the threaded rod (4), and the bracket (5) is fixedly connected to the second motor (6), a through hole (7) is formed on the bracket (5), and a protrusion (8) is fixedly connected in the through hole (7); A rotating rod (9) is rotatably mounted on the housing (1), a spiral groove (10) is formed on the rotating rod (9), and the outer side of the rotating rod (9) below the spiral groove (10) is sleeved on a gear column (11); Two slide grooves (12) are provided, the two slide grooves (12) are symmetrically arranged on the side walls of opposite sides of the housing (1), and sliders (13) are provided in the two slide grooves (12), and support plates (14) are fixedly connected to the side walls of opposite sides of the two sliders (13), and moving parts (15) are fixedly connected to the side walls of opposite sides of the two support plates (14), and tooth blocks (16) are fixedly connected to the inner walls of the moving parts (15); A bulldozer plate (17) fixedly mounted on the support plate (14); A connecting frame (19) is fixedly arranged at the output end of the second motor (6), an electric push rod (20) is fixedly installed on the connecting frame (19), a fixing block (21) is fixedly connected to the connecting frame (19) on the side of the electric push rod (20), a drill bit (22) is fixedly connected to the bottom end of the fixing block (21), a piston cavity (23) is opened in the fixing block (21), a first piston block (24) is movably connected in the piston cavity (23), and a piston rod (25) is fixedly connected to the side wall of the first piston block (24); The sampling mechanism (26) is arranged in the drill bit (22) and is used to implement soil sampling.

2. A soil sampling device for environmental remediation according to claim 1, characterized in that: The rotating rod (9) is arranged in the through hole (7) on the bracket (5), and the rotating rod (9) is fixedly connected to the gear column (11), and one end of the protrusion (8) in the through hole (7) extends into the spiral groove (10) and is slidably connected to the inner wall of the spiral groove (10), and the spiral groove (10) is composed of two parts, the upper part of the spiral groove (10) is spiral, and the lower part of the spiral groove (10) is transformed into a linear structure, and the bracket (5) is threadedly engaged with the threaded rod (4).

3. A soil sampling device for environmental remediation according to claim 1, characterized in that: The slide groove (12) is composed of a straight groove connected to an oblique groove, and the slide groove (12) is slidably connected to the slider (13). The support plate (14) on the slider (13) is an "L"-shaped structure, and the support plate (14) below the bracket (5) is slidably connected to the shell (1), and the bulldozer plate (17) on the support plate (14) is located at the bottom of the shell (1), and a plurality of tooth blocks (16) are arranged in an array, and the tooth blocks (16) are meshed with the gear column (11).

4. A soil sampling device for environmental remediation according to claim 1, characterized in that: One end of the piston rod (25) extends through the fixed block (21) and is fixedly connected to the output end of the second spring (18), and the piston rod (25) is slidably connected to the fixed block (21), and the electric push rod (20), the piston cavity (23), the first piston block (24) and the piston rod (25) are all symmetrically arranged with two of them about the fixed block (21), and hydraulic oil is arranged in the piston cavity (23) of the first piston block (24) away from one end of the piston rod (25).

5. The soil sampling device for environmental remediation according to claim 1, characterized in that: The sampling mechanism (26) comprises a first slot (2601), a sampling barrel (2602), a first push rod (2603), a second piston block (2604) and a first cavity (2605); Two first slots (2601) are provided, and the two first slots (2601) are symmetrically arranged on the side wall of the drill bit (22), and a sampling barrel (2602) is slidably connected in the first slot (2601); The first cavity (2605) is symmetrically arranged in two groups. The first cavity (2605) is opened in the drill bit (22) on the side of the first slot (2601), and the second piston block (2604) is slidably connected in the first cavity (2605), and the end of the first push rod (2603) away from the second piston block (2604) extends into the first slot (2601) and is fixedly connected to the sampling barrel (2602).

6. A soil sampling device for environmental remediation according to claim 5, characterized in that: A first spring (2606) is connected between the second piston block (2604) and the first cavity (2605), and the second piston block (2604) and the first cavity (2605) form an elastic telescopic structure through the first spring (2606), and the first spring (2606) is sleeved on the outside of the first push rod (2603), and the first cavity (2605) is connected to the piston cavity (23) through a pipeline.

7. A soil sampling device for environmental remediation according to claim 6, characterized in that: The sampling mechanism (26) further comprises a sampling groove (2607), a sampling sleeve (2608), a second cavity (2611), a third piston block (2612), a second push rod (2613), a guide groove (2614), a guide block (2615) and a second air bag (2616); A sampling groove (2607) is provided on the drill bit (22), a plurality of sampling grooves (2607) are arranged in an array, and a sampling sleeve (2608) is arranged in each sampling groove (2607); A second cavity (2611) is provided in the drill bit (22) on the side of the sampling slot (2607), a plurality of the second cavities (2611) are arranged in an array, and a third piston block (2612) is slidably connected in each of the second cavities (2611), and a second push rod (2613) is rotatably connected to the side wall of the third piston block (2612), and a guide groove (2614) is provided on the second push rod (2613); A guide block (2615) is fixedly disposed in the drill bit (22) above the guide groove (2614); The second air bag (2616) is arranged in the sampling groove (2607).

8. A soil sampling device for environmental remediation according to claim 7, characterized in that: The sampling sleeve (2608) includes a sampling shell (2617), a partition member (2609) and a first air bag (2610); A sampling shell (2617) is movably arranged in the sampling groove (2607), and the inner wall of the sampling shell (2617) is movably connected with a partition member (2609), and a first air bag (2610) is fixedly connected between the partition member (2609) and the inner wall of the sampling shell (2617), and a barb is arranged on the inner side of the opening end of the sampling shell (2617).

9. A soil sampling device for environmental remediation according to claim 8, characterized in that: The sampling groove (2607) corresponds to the second cavity (2611) one by one, and the sampling groove (2607) and the second cavity (2611) are both inclined. The end of the second push rod (2613) away from the third piston block (2612) extends into the sampling groove (2607) and is fixedly connected to the sampling sleeve (2608). The second airbag (2616) in the sampling groove (2607) is sleeved on the outer wall of the second push rod (2613). One end of the second airbag (2616) is fixedly connected to the inner wall of the sampling groove (2607). The end of the second airbag (2616) away from the inner wall of the sampling groove (2607) is in contact with the outer wall of the sampling sleeve (2608). The second airbag (2616) is connected to the first airbag (2610) through a pipeline. The partition member (2609) is an elastic structure.

10. A soil sampling device for environmental remediation according to claim 9, characterized in that: The guide block (2615) is arranged between the sampling groove (2607) and the second cavity (2611), and one end of the guide block (2615) away from the inner wall of the drill bit (22) extends into the guide groove (2614), and the guide block (2615) is slidably connected to the guide groove (2614), the guide groove (2614) is threaded, and the second push rod (2613) is movably connected to the drill bit (22), the second push rod (2613) is sleeved with a second spring (18) on the outer side, and the second spring (18) is arranged in the second cavity (2611), one end of the second spring (18) is fixedly connected to the side wall of the third piston block (2612), and one end of the second spring (18) away from the third piston block (2612) is in contact with the inner wall of the second cavity (2611), and the second cavity (2611) is connected to the second piston cavity (23) through a pipeline.

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