Soil sampler for environmental protection

Abstract

The utility model relates to the field of soil sampling equipment, in particular to a soil sampler for environmental protection, and aims to solve the technical problem that a simple cutting ring tool cannot be used for sampling flow plastic soil of an environment-polluted land parcel and is not suitable for being used in multiple environments in the field. According to the technical scheme, the soil sampler for environmental protection comprises a sampling cutting ring, a shaft column, a sample suction device tool, an air cushion, a plug assembly and a sample container assembly, on the basis of the structure of an original cutting ring sampler, a cavity structure is arranged inside the sampling ring sampler to contain the sample suction device tool, the sampling ring sampler can be switched to be used outdoors for solid polluted soil and plastic flow polluted soil, other extra tools do not need to be taken, the sampling ring cutter and the sample suction device tool are designed in an integrated mode, taking is convenient and fast, and the sampling ring cutter and the sample suction device tool are convenient to use. The inconvenience that a user carries a plurality of tools is reduced, and the problems that a simple cutting ring tool cannot be used for sampling flow plastic soil of an environment-polluted land parcel and is not suitable for being used in multiple environments in the field are solved.

Description

Technical Field

[0001] The utility model relates to the field of soil sampling equipment, in particular to a soil sampler used for environmental protection. Background Art

[0002] The overall situation of soil pollution in my country is not optimistic. Soil pollution is serious in some areas. Severely polluted soil areas and high-risk areas have appeared in heavily polluting enterprises or industrially intensive areas, industrial and mining areas and surrounding areas, cities and suburban areas, which have become an important factor affecting people's health and social stability. Therefore, it is very necessary to take soil samples from polluted areas and check whether the land can be used for human activities.

[0003] The current soil testing process generally involves using soil sampling devices such as ring knives to take out soil blocks at pre-set sampling points in specific contaminated areas. The soil blocks are then marked one by one, classified, packed and stored, and transported to the laboratory for testing using professional soil contaminant detectors. However, the soil morphology in contaminated soil areas may exist in a variety of different states. Some contaminated soils are relatively solid, so ring knife sampling is more convenient. However, some soils are in a fluid state, such as in quicksand areas, swamp areas, and land near water, and the formed soil cannot be taken out with a ring knife.

[0004] Therefore, in view of the fact that the soil in the above-mentioned contaminated plots exists in different states, such as solid and fluidized, it is impossible to use a simple ring knife tool to take out the formed samples from the fluidized soil, which is not conducive to soil sampling in multiple field environments. A sampling device with both ring knife sampling and suction sampling functions can be designed, which can be easily switched for different soil forms and has a wider applicability. Utility Model Content

[0005] In order to overcome the problem that it is impossible to use a simple ring knife tool to sample the fluidized plastic soil in environmentally polluted plots, which is not conducive to use in multiple field environments.

[0006] The technical solution of the utility model is: a soil sampler for environmental protection, comprising a sampling ring knife, a shaft column, a sample suction device tooling, an air cushion, a plug assembly, and a sample container assembly; the upper end of the sampling ring knife is fixedly connected with a shaft column with a hollow structure, the piston suction sample suction device tooling is stored in the shaft column, an annular air cushion surrounding the outside of the sample suction device tooling is fixedly installed on the inner wall of the shaft column, a plug assembly is threadedly installed on the upper end of the shaft column, and a sample container assembly is magnetically installed on the upper end of the plug assembly.

[0007] Preferably, the sampling ring knife has the same structure as the existing ring knife sampler, and the sample suction tool is stored in the cavity of the shaft column when not in use. When facing solid contaminated soil outdoors, the sampling ring knife is directly used to remove standard soil blocks. When facing fluidized contaminated soil, the sample suction tool is taken out and switched for use to suck the soil sample into the sample container assembly.

[0008] Preferably, an annular supporting wing plate is fixedly connected to the outer wall of the upper end of the shaft column, the bottom wall of the sample container assembly is located on the upper side of the supporting wing plate, the outer wall of the shaft column close to the sampling ring knife has an open structure on one side and a buckle plate is snap-connected in the open structure, the supporting wing plate acts as a bottom support when the sample container assembly is placed on the plug assembly, thereby improving the placement stability, and after opening the buckle plate, the tools or materials at the corresponding position in the shaft column can be taken out.

[0009] Preferably, a sleeve is fixedly connected to the middle of the bottom wall of the shaft column, the upper end of the sleeve is an eight-shaped structure, and the sleeve has a seepage hole extending downward and connected to the inside of the sampling ring knife. The sleeve serves as the bottom fixing structure of the sample suction device tooling, and cooperates with the side support of the air cushion to prevent the sample suction device tooling from shaking on the shaft column. The plastic soil remaining in the sample suction device tooling can flow downward through the seepage hole.

[0010] Preferably, the bottom wall of the shaft column is a funnel-shaped structure and a seepage groove connected to the seepage hole is provided at the junction with the outer edge of the sleeve. A plug with a bottom flush with the top wall of the sampling ring knife is inserted at the lower end of the seepage hole. When the plug is opened and the shaft column is flushed and cleaned, the clean water can flow directly downward into the seepage hole through the seepage groove and finally be discharged from the sampling ring knife to avoid sewage residue.

[0011] Preferably, the sample suction tool comprises a suction cup, a suction head, a plunger and an extension tube; the suction cup is a hollow cylindrical structure, a suction head matched with the sleeve is arranged at the lower end of the suction cup, one end of the plunger is a rubber plug and is located in the suction cup, and the other end is a handle, and an extension tube matched with the suction head is coiled at the bottom of the shaft column. When the sample suction tool is used, one end of the extension tube is installed on the suction head, and the other end is extended into the fluidized contaminated soil. The handle end of the plunger is held and pulled outward to form a negative pressure in the suction cup, and the fluidized contaminated soil is drawn into the suction cup.

[0012] Preferably, the plug assembly includes a sealing plate, a gasket, and a No. 1 magnetic sheet; the lower end of the sealing plate has a screw head threadedly connected to the inner wall of the top end of the shaft column, the lower end of the screw head is fixedly connected to the gasket, and the upper end of the sealing plate is fixedly installed with a No. 1 magnetic sheet. After the screw head of the sealing plate is screwed into the shaft column, the gasket rests against the top of the sample suction device tooling to prevent it from jumping up and down. At the same time, the sealing plate also serves as a manual pressing platform for taking soil using a sampling ring knife.

[0013] Preferably, the sample container assembly includes a sample box, a cover, a groove, and a No. 2 magnetic sheet; the sample box is a transparent cylindrical structure that is compatible with the inner diameter of the sampling ring knife, the cover is threadedly installed on the upper end of the sample box, the lower end of the sample box has a groove that is compatible with the sealing plate, and a No. 2 magnetic sheet is installed on the inner wall of the groove. The sample box is installed with the groove aligning with the sealing plate, and is locked by magnetic adsorption between the No. 1 magnetic sheet and the No. 2 magnetic sheet. The cover is opened and the soil sample is placed in the sample box.

[0014] Beneficial effects of the utility model:

[0015] 1. Based on the structure of the original ring knife sampler, a cavity structure is set inside to accommodate the sample suction tooling. When facing solid contaminated soil and fluid contaminated soil outdoors, it can be switched and used without the need to use other additional tools. The integrated design of the sampling ring knife and the sample suction tooling is convenient and quick to use, reducing the inconvenience of users carrying multiple tools;

[0016] 2. Improve the original soil sample container to make it compatible with the plug assembly, so as to form an assembled structure with the sampling equipment and be able to be carried and moved synchronously;

[0017] 3. The hollow structure connecting the bottom of the shaft column and the sampling ring knife facilitates drainage after flushing the sampling equipment, which also helps to improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 What is shown is a schematic diagram of the cross-sectional structure of a soil sampler for environmental protection of the utility model;

[0019] Figure 2 The front structure diagram of the soil sampler for environmental protection of the utility model is shown;

[0020] Figure 3 What is shown is a first stereoscopic structural schematic diagram of a soil sampler for environmental protection of the utility model;

[0021] Figure 4 The second stereoscopic structure schematic diagram of the soil sampler for environmental protection of the utility model is shown;

[0022] Figure 5 The diagram shows an enlarged schematic diagram of the internal structure of the shaft column of the soil sampler for environmental protection of the utility model;

[0023] Figure 6 The present invention is a schematic diagram of the three-dimensional structure of a soil sampler and sample suction device for environmental protection;

[0024] Figure 7 The first three-dimensional structure schematic diagram of the soil sampler sampling ring knife for environmental protection of the utility model is shown;

[0025] Figure 8 The second stereoscopic structure schematic diagram of the sampling ring knife of the soil sampler for environmental protection of the utility model is shown;

[0026] Fig. 9 The first three-dimensional structure schematic diagram of the sample container assembly of the soil sampler for environmental protection of the utility model is shown;

[0027] Fig.10What is shown is a second three-dimensional structural schematic diagram of the sample container assembly of the soil sampler for environmental protection of the present utility model.

[0028] Explanation of the reference numerals in the accompanying drawings: 1. Sampling ring knife; 2. Shaft column; 3. Sample suction device tooling; 4. Air cushion; 5. Plug assembly; 6. Sample container assembly; 7. Support wing plate; 8. Buckle plate; 9. Sleeve; 10. Seepage hole; 11. Seepage groove; 12. Plug; 301. Suction cylinder; 302. Suction head; 303. Plunger; 304. Extension tube; 501. Sealing plate; 502. Gasket; 503. Magnetic sheet No. 1; 601. Sample box; 602. Cover plate; 603. Groove; 604. Magnetic sheet No. 2. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0030] See also Figure 1-4 The utility model provides an embodiment: a soil sampler for environmental protection, comprising a sampling ring knife 1, a shaft column 2, a sample suction device tooling 3, an air cushion 4, a plug assembly 5, and a sample container assembly 6; the upper end of the sampling ring knife 1 is fixedly connected to a shaft column 2 with a hollow structure, and the piston suction sample suction device tooling 3 is stored in the shaft column 2. An annular air cushion 4 surrounding the outside of the sample suction device tooling 3 is fixedly installed on the inner wall of the shaft column 2, a plug assembly 5 is threadedly installed on the upper end of the shaft column 2, and a sample container assembly 6 is magnetically installed on the upper end of the plug assembly 5. The sampling ring knife 1 has the same structure as the existing ring knife sampler. The sample suction device tooling 3 is stored in the cavity of the shaft column 2 when not in use. When facing solid contaminated soil outdoors, the sampling ring knife 1 is directly used to take out standard soil blocks. When facing fluidized contaminated soil, the sample suction device tooling 3 is taken out and switched for use to suck soil samples into the sample container assembly 6.

[0031] See also Figure 3-5In this embodiment, an annular supporting wing plate 7 is fixedly connected to the outer wall of the upper end of the shaft column 2, and the bottom wall of the sample container assembly 6 is located on the upper side of the supporting wing plate 7. The outer side wall of the shaft column 2 near the sampling ring knife 1 has an open structure and a buckle plate 8 is snap-connected in the open structure. A sleeve 9 is fixedly connected to the middle of the bottom wall of the shaft column 2. The upper end of the sleeve 9 is an eight-shaped structure. The sleeve 9 has a seepage hole 10 extending downward and connected to the inside of the sampling ring knife 1. The bottom wall of the shaft column 2 is a funnel-shaped structure and a seepage groove 11 connected to the seepage hole 10 is opened at the junction with the outer edge of the sleeve 9. The lower end of the seepage hole 10 is plugged with a plug 1 whose bottom end is flush with the top wall of the sampling ring knife 1. 2. The supporting wing plate 7 plays a bottom supporting role when the sample container assembly 6 is placed on the plug assembly 5 to improve the placement stability. After opening the buckle plate 8, the tools or materials at the corresponding position in the shaft column 2 can be taken out. The sleeve 9 serves as the bottom fixing structure of the sample suction device 3, and cooperates with the side supporting effect of the air cushion 4 to prevent the sample suction device 3 from shaking on the shaft column 2. The fluidized soil remaining in the sample suction device 3 can flow downward through the seepage hole 10. When the plug 12 is opened and the shaft column 2 is rinsed and cleaned, the clean water can flow directly downward into the seepage hole 10 through the seepage groove 11, and finally discharged from the sampling ring knife 1 to avoid sewage residue.

[0032] See also Figure 6 In this embodiment, the sample suction device tooling 3 includes a suction tube 301, a suction head 302, a plunger 303, and an extension tube 304; the suction tube 301 is a hollow cylindrical structure, and a suction head 302 adapted to the sleeve 9 is arranged at the lower end of the suction tube 301, one end of the plunger 303 is a rubber plug and is located in the suction tube 301, and the other end is a handle, and an extension tube 304 adapted to the suction head 302 is coiled at the bottom of the shaft column 2. When the sample suction device tooling 3 is used, one end of the extension tube 304 is installed on the suction head 302, and the other end is extended into the fluidized contaminated soil. The handle end of the plunger 303 is held and pulled outward to form a negative pressure in the suction tube 301, and the fluidized contaminated soil is drawn into the suction tube 301.

[0033] See also Figure 7-8 In this embodiment, the plug assembly 5 includes a sealing plate 501, a gasket 502, and a No. 1 magnetic sheet 503; the lower end of the sealing plate 501 has a screw head threadedly connected to the inner wall of the top end of the shaft column 2, and the lower end of the screw head is fixedly connected to the gasket 502. The upper end of the sealing plate 501 is fixedly installed with a No. 1 magnetic sheet 503. After the screw head of the sealing plate 501 is screwed into the shaft column 2, the gasket 502 abuts against the top of the sample suction device tooling 3 to prevent it from jumping up and down. At the same time, the sealing plate 501 also serves as a manual pressing platform for taking soil using the sampling ring knife 1.

[0034] See also Figure 9-10In this embodiment, the sample container assembly 6 includes a sample box 601, a cover plate 602, a groove 603, and a second magnetic sheet 604; the sample box 601 is a transparent cylindrical structure adapted to the inner diameter of the sampling ring knife 1, the cover plate 602 is threadedly installed on the upper end of the sample box 601, and the lower end of the sample box 601 has a groove 603 adapted to the sealing plate 501, and a second magnetic sheet 604 is installed on the inner wall of the groove 603. The sample box 601 aligns the groove 603 with the sealing plate 501 and is installed, and is locked by magnetic attraction between the first magnetic sheet 503 and the second magnetic sheet 604, and the cover plate 602 is opened to put the soil sample into the sample box 601.

[0035] Embodiment 1:

[0036] When sampling solid soil, the user removes the sample container assembly 6, then buckles the bottom of the sampling ring knife 1 on the surface of the soil to be sampled, presses the sealing plate 501 downward by hand to press the sampling ring knife 1 into the soil layer, and then the user holds the shaft column 2 and shakes it left and right to completely separate the soil in the sampling ring knife 1 from the surrounding soil, and then pulls the sampling ring knife 1 upward;

[0037] Then open the cover plate 602 of the sample container assembly 6, put the sample box 601 under the sampling ring knife 1, and use a tool to knock the top wall of the sampling ring knife 1 to make the soil block fall into the sample box 601 to complete the sampling work;

[0038] Embodiment 2:

[0039] When sampling the fluidized soil, the user removes the sample container assembly 6, then unscrews the sealing plate 501, pulls out the sample suction tool 3, screws the sealing plate 501 back in, opens the buckle plate 8, takes out the extension tube 304 from the open end of the shaft column 2 and docks it with the suction head 302;

[0040] Next, the end of the extension tube 304 that is not connected to the suction head 302 is extended into the fluidized contaminated soil, and the handle end of the plunger 303 is held and pulled outward to form a negative pressure in the suction cylinder 301, so that the fluidized contaminated soil is sucked into the suction cylinder 301, and then the plunger 303 is pushed to push the fluidized contaminated soil into the sample box 601 with the cover 602 opened;

[0041] After use, put the sample suction tool 3 back into the shaft column 2, and let the suction head 302 enter the sleeve 9. Cooperate with the side support of the air cushion 4 to prevent the sample suction tool 3 from shaking on the shaft column 2. The liquid soil remaining in the sample suction tool 3 flows downward through the infiltration hole 10 and can be discharged by opening the plug 12.

[0042] Through the above steps, a cavity structure is set up inside the original ring knife sampler structure to accommodate the sample suction tool 3, so that solid contaminated soil and fluidized contaminated soil can be switched for use outdoors without the need to use other additional tools. The integrated design of the sampling ring knife 1 and the sample suction tool 3 is convenient and quick to use, reducing the inconvenience of users carrying multiple tools, so as to solve the problem that a simple ring knife tool cannot be used to sample fluidized soil in environmentally contaminated plots, which is not conducive to use in multiple field environments.

Claims

1. A soil sampler for environmental protection, comprising a sampling ring knife (1); characterized in that: The invention also comprises a shaft column (2), a sample suction device tool (3), an air cushion (4), a plug assembly (5), and a sample container assembly (6); the upper end of the sampling ring knife (1) is fixedly connected to a shaft column (2) with a hollow structure; the shaft column (2) stores a piston suction sample suction device tool (3); an annular air cushion (4) surrounding the outside of the sample suction device tool (3) is fixedly installed on the inner wall of the shaft column (2); a plug assembly (5) is threadedly installed on the upper end of the shaft column (2); and a sample container assembly (6) is magnetically installed on the upper end of the plug assembly (5).

2. A soil sampler for environmental protection according to claim 1, characterized in that: An annular supporting wing plate (7) is fixedly connected to the outer wall of the upper end of the shaft column (2); the bottom wall of the sample container assembly (6) is located on the upper side of the supporting wing plate (7); and the outer wall of the shaft column (2) has an open structure on a side close to the sampling ring knife (1), and a buckle plate (8) is snap-connected in the open structure.

3. A soil sampler for environmental protection according to claim 1, characterized in that: A sleeve (9) is fixedly connected in the middle of the bottom wall of the shaft column (2); the upper end of the sleeve (9) is an eight-shaped structure; and a seepage hole (10) is provided in the sleeve (9) and extends downward and is connected to the interior of the sampling ring knife (1).

4. A soil sampler for environmental protection according to claim 3, characterized in that: The bottom wall of the shaft column (2) is a funnel-shaped structure and is provided with a seepage groove (11) connected to the seepage hole (10) at the junction with the outer edge of the sleeve (9). A plug (12) whose bottom end is flush with the top wall of the sampling ring knife (1) is inserted at the lower end of the seepage hole (10).

5. A soil sampler for environmental protection according to claim 3, characterized in that: The sample suction device tooling (3) comprises a suction tube (301), a suction head (302), a plunger (303), and an extension tube (304); the suction tube (301) is a hollow cylindrical structure, and a suction head (302) adapted to the sleeve (9) is arranged at the lower end of the suction tube (301); one end of the plunger (303) is a rubber plug and is located in the suction tube (301), and the other end is a handle; and an extension tube (304) adapted to the suction head (302) is arranged coiled at the bottom of the shaft column (2).

6. A soil sampler for environmental protection according to claim 1, characterized in that: The plug assembly (5) comprises a sealing plate (501), a washer (502), and a first magnetic attraction sheet (503); the sealing plate (501) has a screw head at the lower end thereof threadedly connected to the inner wall of the top end of the shaft column (2), the washer (502) being fixedly connected to the lower end of the screw head, and the first magnetic attraction sheet (503) being fixedly mounted at the upper end thereof.

7. A soil sampler for environmental protection according to claim 6, characterized in that: The sample container assembly (6) comprises a sample box (601), a cover plate (602), a groove (603), and a second magnetic sheet (604); the sample box (601) is a transparent cylindrical structure adapted to the inner diameter of the sampling ring knife (1); the cover plate (602) is threadedly mounted on the upper end of the sample box (601); the sample box (601) has a groove (603) adapted to the sealing plate (501) at the lower end; and the second magnetic sheet (604) is mounted on the inner wall of the groove (603).

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