Layered sampling device for polluted soil with high water content

Abstract

The utility model discloses a stratified sampling device for polluted soil with high water content. The stratified sampling device comprises a sampler and a sampling base, the sampler comprises a handheld rod, a sampling hollow drill cavity, a sleeve film and a sampling drill, and the sleeve film is tubular and is arranged in the sampling hollow drill cavity. The sampling hollow drill cavity is tubular, a sampling window and a sealing cover are arranged on the side wall of the sampling hollow drill cavity, and the sampling drill comprises a fixing ring, a drill cavity and a rotary cut-in opening; the sampling base comprises a base frame, a central limiting sleeve, a telescopic branch pipe and a ground nail; the telescopic branch pipe is in an L shape and is connected with the base frame in a sliding mode through a limiting sleeve. According to the soil sampler, the sleeve film is arranged in the sampler to accommodate a soil sample, the sample can be conveniently taken down from the sampler, and the soil sample can be effectively blocked and is prevented from flowing out of the sampler head due to higher water content due to the rotary cutting-in opening formed in the sampler head. The telescopic sampling base is adopted, so that the size can be reduced on the basis of ensuring the stability, and the device is convenient to carry.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment technology, specifically to a stratified sampling device for polluted soil with high moisture content. Background Technology

[0002] Soil sampling is a crucial step in pollution remediation, providing fundamental data for assessing soil pollution levels and developing remediation plans. By collecting soil samples from different areas and depths, the types and concentrations of pollutants can be accurately determined, allowing for the analysis of pollution sources, pollution levels, and diffusion trends. This information is essential for developing scientific soil remediation plans, selecting appropriate remediation technologies, and evaluating remediation effectiveness. Furthermore, soil sampling helps monitor the progress of soil pollution remediation, ensuring the effectiveness of remediation measures and preventing further pollution spread.

[0003] In practice, some sampling areas have high soil moisture content, which can easily remain inside the sampler, requiring a significant amount of time to clean the sampler after sampling. Additionally, to ensure the verticality of the sampler's insertion, a sampling base is generally required. To ensure the stability of the sampling base, it is typically quite large, making it inconvenient to carry. Utility Model Content

[0004] The purpose of this invention is to provide a stratified sampling device for contaminated soil with high moisture content, so as to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides a stratified sampling device for high-moisture-content contaminated soil, comprising a sampler and a sampling base; the sampler includes a handheld rod, a sampling hollow drill cavity, and a casing, wherein the casing is tubular and is disposed inside the sampling hollow drill cavity.

[0006] Furthermore, the sampling hollow drill cavity is tubular, with a sampling window and a sealing cover on the side wall. The sealing cover is detachably fixed to the sampling window on the outer side of the sampling hollow drill cavity by bolts.

[0007] Furthermore, the top surface of the inner cavity of the sampling hollow drill cavity is provided with a plurality of membrane positioning protrusions, and the positioning protrusions are provided with gaps between the positioning protrusions and the inner wall of the sampling hollow drill cavity. The top of the membrane is inserted into the gap, and the positioning protrusion located in the sampling window area is provided with threaded holes that cooperate with the sealing cover.

[0008] Furthermore, a sealing cap is provided on the upper part of the sleeve. The sealing cap is located on the upper part of the sleeve and has a certain gap from the top. The length of this gap in the axial direction is greater than the height of the positioning protrusion.

[0009] Further, the sampler further comprises a sampling drill, the sampling drill comprises a fixing ring, a drill cavity and a rotary cutting inlet; the drill cavity is annular, the outer diameter is the same as that of the sampling hollow drill cavity, the upper part is provided with the fixing ring, and the lower part is provided with the rotary cutting inlet; the rotary cutting inlet comprises a plurality of inclined cutting knives, the upper part of the inclined cutting knives is fixed to the lower part of the drill cavity, and the lower part is inclined to the drill cavity in the axial direction.

[0010] Further, the fixing ring comprises a fixing threaded section and a film fixing section; the outer diameter of the fixing threaded section is the same as that of the lower part of the sampling hollow drill cavity, the fixing threaded section is detachably connected to the lower part of the sampling hollow drill cavity through a threaded structure, the film fixing section is located above the fixing threaded section, the outer diameter of the film fixing section is smaller than that of the lower part of the sampling hollow drill cavity, and the film fixing section is provided with a threaded hole matched with the sealing cover.

[0011] Further, the outer diameter of the fixing ring is matched with the inner diameter of the lower part of the sampling hollow drill cavity, the lower part of the film is detachably arranged in the gap between the fixing ring and the sampling hollow drill cavity, and a plurality of threaded holes are arranged on the fixing ring.

[0012] Further, the inclined cutting knives are fixedly connected at the bottom.

[0013] Further, the inclined cutting knife 1431 comprises an outward extending knife head d, the inclined cutting knife is a circular arc curved triangular plate or a trapezoidal plate with a smaller bottom size, the top is fixed to the lower part of the drill cavity through welding, the bottom is welded and connected, and the inclined cutting knife covers 50% of the space of the drill cavity; the outward extending knife head is arranged on one side of the inclined cutting knife and is arranged along the circular arc tangent direction of the inclined cutting knife.

[0014] Further, the sampling base comprises a base frame, a central limiting sleeve, an extension support pipe and a ground nail; the central limiting sleeve is tubular and arranged in the center of the base frame; the extension support pipe is L-shaped, arranged on one side of the base frame, slidably connected to the base frame through the limiting sleeve, provided with a limiting bolt at the end, and fixed to the base frame in an adjustable position; the limiting sleeve is a c-shaped plate, fixed to the base frame at the opening, and a square through hole is formed between the base frame; the extension support pipe is inserted into the square through hole, provided with a plurality of through holes on the extension support pipe, and provided with a ground nail at the through hole; the ground nail is provided with a ground nail rod, a ground nail insertion sharp part, a top limiting ring and a stepping cover.

[0015] The high water content contaminated soil layered sampling device can conveniently take out the sample from the sampler by arranging the film in the sampler to accommodate the soil sample, the rotary cutting inlet arranged at the head of the sampler can effectively block the soil sample and prevent the soil sample from flowing out of the head of the sampler due to high water content, the extension type sampling base can reduce the volume on the basis of ensuring stability, is convenient to carry, and the ground nail structure and the nail pulling device are designed, so that the sampler can conveniently install and pull out the ground nail.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole scheme schematic diagram of the utility model.

[0017] Figure 2 It is the sampler amplification schematic diagram of the utility model.

[0018] Figure 3 It is the top amplification schematic diagram of the sampler of the utility model.

[0019] Figure 4 It is the sampler partial amplification schematic diagram of another embodiment of the utility model.

[0020] Figure 5 It is the sampling drill amplification schematic diagram of the sampler of the utility model.

[0021] Figure 6 It is the sampling drill amplification schematic diagram of another embodiment of the sampler of the utility model.

[0022] Figure 7 It is the bottom view schematic diagram of the sampling drill of the utility model.

[0023] Figure 8 It is the sampling base schematic diagram of the utility model.

[0024] Figure 9 It is the sampling base ground peg area partial amplification schematic diagram of the utility model.

[0025] Figure 10 It is the ground peg amplification schematic diagram of another embodiment of the utility model. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be apparently and completely described in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] As shown in the accompanying drawings, Figures 1-10 The utility model relates to a kind of high water content contaminated soil layered sampling device, including sampler 1, sampling base 2.

[0028] As shown in the accompanying drawings, Figures 1-7 The sampler 1 includes hand pole 11, sampling hollow drill cavity 12, sleeve film 13, the sleeve film 13 is tubular, is arranged in sampling hollow drill cavity 12.

[0029] The sampling hollow drill cavity 12 is tubular, with a sampling window 121 and a sealing cover 122 on its side wall. The sealing cover 122 is detachably fixed to the sampling window 121 on the outer side of the sampling hollow drill cavity 12 by bolts. The top of the sampling hollow drill cavity 12 is provided with several through holes, which can be circular, annular, or other shapes.

[0030] For details, see attached. Figure 3 As shown in the figure, the top surface of the inner cavity of the sampling hollow drill cavity 12 is provided with a number of membrane positioning protrusions 123, of which 3 are shown in the figure. The positioning protrusions 123 are provided with gaps between themselves and the inner wall of the sampling hollow drill cavity 12, and the top of the membrane 13 is inserted into the gap.

[0031] The positioning protrusion 123 in the sampling window 121 area shown in the attached figure is provided with a threaded hole k that mates with the sealing cover 122, which is used to fix the sealing cover 122 and limit the position of the membrane.

[0032] Furthermore, a sealing cap 131 is provided on the upper part of the sleeve 13. The sealing cap 131 is located on the upper part of the sleeve 13 and has a certain gap from the top. The axial length of this gap is greater than the height of the positioning protrusion 123. (See attached image) Figure 4 As shown, the sealing cap 131 has a through hole at its top. During sampling, the height of the soil sample entering the casing 13 can be controlled by adjusting the insertion depth of the sampler, preventing overfilling and effectively preventing soil from overflowing from the through hole at the top of the sealing cap 131. The through hole at the top of the sampling hollow drill cavity 12 is relatively large, making it easy to clean any remaining soil.

[0033] As attached Figure 1 , 5 As shown in Figures 6 and 7, the sampler 1 also includes a sampling drill 14, which includes a fixing ring 141, a drill cavity 142, and a rotating inlet 143.

[0034] The drilling cavity 142 is annular, with the same outer diameter as the sampling hollow drilling cavity 12. A fixing ring 141 is provided at the top, and a rotating cutting inlet 143 is provided at the bottom.

[0035] As attached Figure 6As shown in the drawings, in one embodiment, the fixing ring 141 comprises a fixing threaded section 1411 and a sleeve film fixing section 1412. The outer diameter of the fixing threaded section 1411 is the same as the inner diameter of the lower part of the sampling hollow drill cavity 12, and the fixing threaded section 1411 is detachably connected to the lower part of the sampling hollow drill cavity 12 through a threaded structure. The sleeve film fixing section 1412 is located above the fixing threaded section 1411, and the outer diameter of the sleeve film fixing section 1412 is smaller than the inner diameter of the lower part of the sampling hollow drill cavity 12. The sleeve film 13 can be inserted into the gap between the sleeve film fixing section 1412 and the sampling hollow drill cavity 12. The sleeve film fixing section 1412 is provided with threaded holes k matched with the sealing cover 122, which is used to fix the sealing cover 122 and limit the sleeve film at the same time.

[0036] As shown in the drawings, Figure 5 In another embodiment, the outer diameter of the fixing ring 141 is gap-fitted with the inner diameter of the lower part of the sampling hollow drill cavity 12. The lower part of the sleeve film 13 is arranged in the gap between the fixing ring 141 and the sampling hollow drill cavity 12. The fixing ring 141 is provided with a plurality of threaded holes k1 matched with the sampling hollow drill cavity 12 and the sealing cover 122.

[0037] The rotary cutting inlet 143 comprises a plurality of inclined cutting knives 1431. The upper part of the inclined cutting knife 1431 is fixed to the lower part of the drill cavity 142, and the lower part is inclined axially to the drill cavity 142. Two inclined cutting knives 1431 are provided in the drawings.

[0038] In order to improve the stability of the inclined cutting knife 1431, the bottom of the two inclined cutting knives 1431 is fixedly connected.

[0039] In order to improve the cutting efficiency, the inclined cutting knife 1431 comprises an outward extending knife head d. Specifically, the inclined cutting knife 1431 is a triangular or trapezoidal plate with a small bottom size. The top is fixed to the lower part of the drill cavity 142 by welding, and the bottom is welded and connected. After welding and forming, the inclined cutting knife 1431 covers 50% of the space of the drill cavity 142 in the drawings. In order to facilitate welding, the inclined cutting knife 1431 is bent into a circular arc shape by knocking before welding. The outward extending knife head d is arranged on one side of the inclined cutting knife 1431 along the circular arc tangent direction of the inclined cutting knife 1431.

[0040] As shown in the drawings, Figure 8 , 9 As shown in the drawings, the sampling base 2 comprises a base frame 21, a central limiting sleeve 22, an extension branch pipe 23, and a ground nail 24.

[0041] The base frame 21 is a structure welded by a plurality of metal pipes, and the central limiting sleeve 22 is tubular and arranged in the center of the base frame 21. The base frame 21 can be welded by stainless steel square pipes.

[0042] The telescopic branch pipe 23 is L-shaped and is set on one side of the base frame 21. It is slidably connected to the base frame 21 through the limiting sleeve 231, and the end is provided with a limiting bolt 232 to fix the position of the base frame 21 in an adjustable manner.

[0043] The limiting sleeve 231 is a C-shaped plate, with its opening fixed to the base frame 21, forming a square through hole between it and the base frame 21. The telescopic branch pipe 23 is inserted into the square through hole. This allows the telescopic branch pipe 23 to extend and retract.

[0044] Several through holes are provided on the telescopic branch pipe 23, and ground nails 24 are provided at the through holes. Each ground nail 24 is provided with a ground nail rod 241, a ground nail insertion tip 242, a top limiting ring 243, and a foot cover 244. The ground nail rod 241 is inserted into the through hole of the telescopic branch pipe 23, and its outer diameter is smaller than the inner diameter of the through hole. The ground nail insertion tip 242 is fixed at the bottom. The ground nail insertion tip 242 is a triangular plate with a base diameter larger than the inner diameter of the through hole of the telescopic branch pipe 23, which can prevent the ground nail 24 from coming out.

[0045] The foot cover 244 is fixed to the top of the ground nail rod 241 and is disc-shaped, making it easy to drive it into the ground with a foot or hammer.

[0046] A nail-pulling through hole 245 is provided on the ground nail rod 241 below the foot cover 244, or as shown in the attached figure. Figure 10 As shown, a nail-removing ring 246 is welded to the outside of the ground nail rod 241.

[0047] A top limiting ring 243 is provided on the ground nail rod 241 below the nail-starting through hole 245 and nail-starting ring 246. The top limiting ring 243 is welded and fixed to the ground nail rod 241, and its outer diameter is larger than the inner diameter of the through hole on the telescopic branch pipe 23.

[0048] To facilitate the removal of the ground nails, a nail-removing rod 25 is also included. The bottom of the nail-removing rod 25 is bent into an L-shape. When in use, the bottom of the nail-removing rod is inserted into the nail-removing through hole 245 and the nail-removing ring 246, and then the ground nail is pried out to one side.

[0049] It should be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A high water content contaminated soil stratified sampling device, characterized in that, The sampling device comprises a sampler and a sampling base; the sampler comprises a handheld rod, a sampling hollow drill cavity and a sleeve film; the sleeve film is tubular and arranged in the sampling hollow drill cavity.

2. The apparatus of claim 1, wherein, The sampling hollow drill cavity is tubular, and a sampling opening is arranged on the side wall; a sealing cover is detachably fixed on the sampling opening on the outer side of the sampling hollow drill cavity by bolts.

3. The apparatus of claim 2, wherein, A plurality of sleeve film positioning protrusions are arranged on the top surface of the inner cavity of the sampling hollow drill cavity; the positioning protrusions are arranged with gaps on the inner wall of the sampling hollow drill cavity; the top of the sleeve film is inserted into the gaps; the positioning protrusions in the sampling opening area are arranged with threaded holes matched with the sealing cover.

4. The high-moisture-content contaminated soil layered sampling device according to claim 3, wherein The upper part of the sleeve film is provided with a sealing cover; the sealing cover is arranged on the upper part of the sleeve film and is arranged with a gap from the top; the gap has a length greater than the height of the positioning protrusion in the axial direction.

5. The high-moisture-content contaminated soil layered sampling device according to claim 1, wherein The sampler further comprises a sampling drill; the sampling drill comprises a fixing ring, a drill cavity and a rotating cutting inlet; the drill cavity is annular, and the outer diameter is the same as that of the sampling hollow drill cavity; the upper part is provided with the fixing ring, and the lower part is provided with the rotating cutting inlet; the rotating cutting inlet comprises a plurality of inclined cutting knives; the upper part of the inclined cutting knife is fixed to the lower part of the drill cavity, and the lower part is inclined to the axial direction of the drill cavity.

6. The high-moisture-content contaminated soil layered sampling device according to claim 5, wherein The fixing ring comprises a fixing threaded section and a sleeve film fixing section; the outer diameter of the fixing threaded section is the same as the inner diameter of the lower part of the sampling hollow drill cavity; the fixing threaded section is detachably connected to the lower part of the sampling hollow drill cavity through a threaded structure; the sleeve film fixing section is arranged above the fixing threaded section and has an outer diameter smaller than the inner diameter of the lower part of the sampling hollow drill cavity; the sleeve film fixing section is provided with threaded holes matched with the sealing cover.

7. The high-moisture-content contaminated soil layered sampling device according to claim 5, wherein The outer diameter of the fixing ring is matched with the inner diameter of the lower part of the sampling hollow drill cavity; the lower part of the sleeve film is detachably arranged in the gap between the fixing ring and the sampling hollow drill cavity; a plurality of threaded holes are arranged on the fixing ring.

8. The high-moisture-content contaminated soil layered sampling device according to claim 5, wherein The bottom of the inclined cutting knife is fixedly connected.

9. The high-moisture-content contaminated soil layered sampling device according to claim 5, wherein The inclined cutting knife (1431) comprises an outward extending knife head d; the inclined cutting knife is a circular arc curved triangle or a trapezoidal plate with a smaller bottom size; the top is fixed to the lower part of the drill cavity by welding; the bottom is fixedly connected; the inclined cutting knife covers 50% of the space of the drill cavity; the outward extending knife head is arranged on one side of the inclined cutting knife and is arranged along the circular arc tangent direction of the inclined cutting knife.

10. The high-moisture-content contaminated soil layered sampling device according to claim 1, wherein The sampling base comprises a base frame, a central limiting sleeve, an extension support pipe and ground nails; the central limiting sleeve is tubular and arranged in the center of the base frame; the extension support pipe is L-shaped, arranged on one side of the base frame, slidably connected with the base frame through the limiting sleeve, and fixed with the base frame by a limiting bolt at the end; the limiting sleeve is a c-shaped plate, fixed with the base frame at the opening, and a square through hole is formed between the base frame and the limiting sleeve; the extension support pipe is inserted into the square through hole, a plurality of through holes are arranged on the extension support pipe, and ground nails are arranged in the through holes; the ground nails are provided with a ground nail rod, a ground nail insertion sharp part, a top limiting ring and a step cover.

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