A sample collection device for water and soil layering storage

Abstract

The utility model relates to environmental monitoring equipment technical field, concretely to a sample collection device of water and soil layering storage, including sampling drill cylinder, layering mechanism and connecting sampling mechanism, layering mechanism fixed connection in the inside of sampling drill cylinder, in the utility model, through the setting of water collecting box, fine filter screen and negative pressure guide pipe, efficient water and soil separation process has been realized, the layering baffle setting of water collecting box corresponds to different depth, makes water sample can accurately store in respective corresponding water collecting box, avoided the mixture between water sample, guaranteed the layering accuracy of water sample, through the double sealing effect of sealing cover and sealing washer, effectively prevented the leakage and outside pollution of water sample in the storage and transportation process, and moisture carries on secondary filtration through fine filter screen, ensure that only pure water sample can pass and flow into water collecting box, and negative pressure environment greatly speeds up the process that the moisture in soil passes metal filter screen and enters layering sampling cavity and concentrates and flows into water collecting box.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring equipment technology, and in particular to a sample collection device for stratified storage of soil and water. Background Technology

[0002] In fields such as environmental science research, soil and water conservation monitoring, and geological exploration, the accurate collection and stratified storage of soil and water samples at different depths are crucial. By analyzing soil and water samples from different layers, information on soil structure, composition, water content, and water quality can be obtained, providing key data support for research on soil erosion patterns, groundwater pollution, and ecological environment evolution.

[0003] When using existing technical solutions, soil samples from different soil layers can easily interfere with each other during the insertion of the sampler into the soil, making it impossible to clearly distinguish samples from different depths. This results in sample mixing, which can easily lead to mixing and leakage during storage and transportation, reducing the validity and research value of the samples and seriously affecting the accuracy of subsequent analysis results.

[0004] To address the aforementioned problems, this utility model provides a sample collection device for stratified storage of soil and water. Utility Model Content

[0005] The purpose of this invention is to solve the problems of difficulty in accurately collecting soil and water samples in layers, easy mixing of samples, and inconvenience in storage and transportation in the existing technology, and to propose a soil and water layered storage sample collection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sample collection device for water and soil stratification storage, comprising a sampling drill cylinder, a stratification mechanism and a connecting sampling mechanism, wherein the stratification mechanism is fixedly connected to the inside of the sampling drill cylinder, and the connecting sampling mechanism is fixedly connected to the outer surface of the sampling drill cylinder, and the stratification mechanism comprises a stratification storage component and a negative pressure stratification component.

[0007] The stratified storage component includes a water collection box, and the negative pressure stratification component includes a negative pressure conduit, which is fixedly connected to the inside of the sampling drill barrel.

[0008] The layered storage component includes six equally spaced layered partitions fixedly connected inside the sampling drill barrel. Fine filter screens are provided on both sides of the layered partitions. The water collection box is fixedly connected to the bottom of the fine filter screens. A drainage sampling pipe is fixedly connected to the outer surface of the water collection box. One end of the drainage sampling pipe communicates with the inside of the water collection box, and the other end of the drainage sampling pipe extends to the outside of the sampling drill barrel. A sealing gasket is fixedly connected to the gap between the drainage sampling pipe and the sampling drill barrel.

[0009] Furthermore, the sealing gasket is fixedly connected to the outer surface of the sampling drill barrel, and a sealing cap is snapped into the inside of the drainage sampling tube.

[0010] Furthermore, the layered storage component includes a sample inlet on the outer surface of the sampling drill barrel, a primary metal filter screen is fixedly connected to the inner wall of the sample inlet, the sample inlet and the primary metal filter screen are arranged at six equal intervals on the outer surface of the sampling drill barrel, and annular covers are arranged at six equal intervals on the outer surface of the sampling drill barrel.

[0011] Furthermore, the negative pressure stratification assembly includes a negative pressure conduit fixedly connected to both sides of the stratification partition, the negative pressure conduit penetrating the interior of the sampling drill barrel, an air extraction pipe fixedly connected to the outer surface of the negative pressure conduit, the air extraction pipe being arranged at six equal intervals on the outer surface of the negative pressure conduit, and a negative pressure pump connection port fixedly connected to the top of the negative pressure conduit, the negative pressure pump connection port being snapped onto the outer surface of the sampling drill barrel.

[0012] Furthermore, a dustproof mesh is threaded to the bottom of the extraction pipe, and connecting pieces are threaded to both sides of the dustproof mesh. The dustproof mesh is threaded to the bottom of the extraction pipe through the connecting pieces.

[0013] Furthermore, the sampling mechanism includes a spiral drill bit threadedly connected to the bottom of the sampling drill barrel. A drill tip is fixedly connected to the bottom of the spiral drill bit, and limiting members are threadedly connected to both sides of the spiral drill bit. The spiral drill bit is threadedly connected to the bottom of the sampling drill barrel through the limiting members.

[0014] Furthermore, the connecting sampling mechanism includes a connecting support column fixedly connected to the top of the sampling drill barrel, a connecting pipe fixedly connected to the top of the connecting support column, limit bolts threadedly connected to both sides of the connecting pipe, and two symmetrically arranged limit nuts threadedly connected to the outer surface of the limit bolts.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, the efficient water-soil separation process is achieved through the design of a water collection box, a fine filter screen, and a negative pressure conduit. The water collection box is equipped with stratified partitions corresponding to different depths, allowing water samples at different depths to be accurately stored in their respective collection boxes, avoiding mixing between water samples and ensuring the accuracy of water sample stratification. The double sealing effect of the sealing cap and sealing gasket effectively prevents leakage and external contamination of water samples during storage and transportation. The water undergoes secondary filtration through the fine filter screen to further remove fine impurities, ensuring that only pure water samples can pass through and flow into the water collection box. The negative pressure environment greatly accelerates the process of water in the soil passing through the metal filter screen into the stratified sampling cavity and flowing into the water collection box.

[0017] 2. In this utility model, the spiral drill bit, drill tip, and limiting bolt significantly improve the efficiency of the device's insertion into the soil. When collecting samples, the operator holds the operating handle and uses the sharp end of the drill tip to easily position the device and initially cut into the soil, greatly reducing the resistance of the device's insertion into the soil. This allows for faster and more effortless insertion to the predetermined depth, especially when facing relatively hard or sticky soil, which greatly improves the efficiency of sample collection and reduces the labor intensity of the operator. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of a sample collection device for stratified storage of soil and water is provided for this utility model.

[0019] Figure 2 This invention provides a schematic diagram of the structure of the layered partition in a sample collection device for layered storage of soil and water.

[0020] Figure 3 This utility model proposes a sample collection device for stratified storage of soil and water. Figure 2 Enlarged view of point A;

[0021] Figure 4 This invention provides a schematic diagram of the negative pressure conduit in a sample collection device for stratified water and soil storage.

[0022] Figure 5 This invention provides a schematic diagram of the sealing gasket structure in a sample collection device for stratified storage of soil and water.

[0023] Figure 6 This utility model proposes a sample collection device for stratified storage of soil and water. Figure 5 Enlarged diagram of point B.

[0024] Legend:

[0025] 1. Sampling drill barrel; 2. Layering mechanism; 21. Layered storage component; 211. Water collection box; 212. Layered partition; 213. Fine filter screen; 214. Drainage sampling pipe; 215. Sealing gasket; 216. Sealing cap; 217. Sample inlet; 218. Primary metal filter screen; 219. Annular cover; 22. Negative pressure layering component; 221. Negative pressure conduit; 222. Suction pipe; 223. Negative pressure pump connection port; 224. Dustproof mesh; 225. Connector; 3. Connecting sampling mechanism; 31. Spiral drill bit; 32. Drill tip; 33. Limiting component; 34. Connecting support column; 35. Connecting pipe; 36. Limiting bolt; 37. Limiting nut. Detailed Implementation

[0026] Please see Figure 1-6 This utility model provides a technical solution: a sample collection device for water and soil stratification storage, including a sampling drill cylinder 1, a stratification mechanism 2 and a connecting sampling mechanism 3. The stratification mechanism 2 is fixedly connected to the inside of the sampling drill cylinder 1, and the connecting sampling mechanism 3 is fixedly connected to the outer surface of the sampling drill cylinder 1. The stratification mechanism 2 includes a stratification storage component 21 and a negative pressure stratification component 22.

[0027] The specific setup and function of its layered mechanism 2 and connecting sampling mechanism 3 will be explained in detail below.

[0028] In this embodiment: the stratified storage component 21 includes a water collection box 211, and the negative pressure stratification component 22 includes a negative pressure conduit 221, which is fixedly connected to the inside of the sampling drill barrel 1.

[0029] The layered storage component 21 includes six equally spaced layered partitions 212 fixedly connected inside the sampling drill cylinder 1. Fine filter screens 213 are provided on both sides of the layered partitions 212. A water collection box 211 is fixedly connected to the bottom of the fine filter screen 213. A drainage sampling pipe 214 is fixedly connected to the outer surface of the water collection box 211. One end of the drainage sampling pipe 214 is connected to the inside of the water collection box 211, and the other end of the drainage sampling pipe 214 extends to the outside of the sampling drill cylinder 1. A sealing gasket 215 is fixedly connected to the gap between the drainage sampling pipe 214 and the sampling drill cylinder 1.

[0030] The effects achieved by the above components are as follows: the fine filter screens 213 on both sides of the layered partition 212 have high filtration accuracy, which can filter out the water in the sample entering the layered area, while solid particles such as soil are trapped in the layered area, realizing the rapid separation of water and soil samples in the same depth layer and improving the efficiency of sample processing. One end of the drainage sampling pipe 214 is connected to the inside of the water collection box 211, and the other end extends to the outside of the sampling drill tube 1, providing a convenient way to take out the water sample in the water collection box 211. The staff can easily obtain water samples without disassembling the sampling drill tube 1, simplifying the sampling operation process.

[0031] Specifically, the sealing gasket 215 is fixedly connected to the outer surface of the sampling drill barrel 1, and the inside of the drainage sampling pipe 214 is fitted with a sealing cap 216.

[0032] The effects achieved by the above components are as follows: the sealing gasket 215 can effectively fill the connection gap between the drainage sampling tube 214 and the sampling drill tube 1, preventing external water or soil impurities from entering the sampling drill tube 1 during sampling and storage, while preventing internal samples from leaking out of the gap, thus ensuring the airtightness of the internal environment of the sampling drill tube 1. The sealing cap 216 is snapped into the inside of the drainage sampling tube 214, which can seal the drainage sampling tube 214 when no sampling operation is being performed, preventing the water sample in the water collection box 211 from flowing out during transportation or storage, further enhancing the sealing performance of the device and ensuring the integrity of the sample.

[0033] Specifically, the layered storage component 21 includes a sample inlet 217 opened on the outer surface of the sampling drill cylinder 1. A primary metal filter 218 is fixedly connected to the inner wall of the sample inlet 217. The sample inlet 217 and the primary metal filter 218 are arranged at six equal intervals on the outer surface of the sampling drill cylinder 1. An annular cover 219 is arranged at six equal intervals on the outer surface of the sampling drill cylinder 1.

[0034] The effects achieved by the above components are as follows: the inlet 217 is set at six equal intervals, corresponding to the six layered spaces formed by the layered partition 212, which facilitates the entry of water and soil samples at different depths into the corresponding layered spaces. The primary metal filter 218 can perform preliminary filtration of water and soil samples entering the inlet 217, intercepting larger stones, impurities, etc., and preventing them from entering the sampling drill 1 and causing blockage. The annular cover 219 protects the inlet 217 and the primary metal filter 218, and avoids direct impact of soil on the filter and inlet 217 during the drilling process of the sampling drill 1, reducing the possibility of component damage. At the same time, it can also guide water and soil samples to enter the inlet 217 more smoothly.

[0035] Specifically, the negative pressure stratification component 22 includes a negative pressure conduit 221 fixedly connected to both sides of the stratification partition 212. The negative pressure conduit 221 penetrates the interior of the sampling drill barrel 1. An air extraction pipe 222 is fixedly connected to the outer surface of the negative pressure conduit 221. The air extraction pipe 222 is arranged at six equal intervals on the outer surface of the negative pressure conduit 221. A negative pressure pump connection port 223 is fixedly connected to the top of the negative pressure conduit 221. The negative pressure pump connection port 223 is snapped onto the outer surface of the sampling drill barrel 1.

[0036] The effects achieved by the above components are as follows: the negative pressure pump connection port 223 can be connected to an external negative pressure pump. When the negative pressure pump is working, negative pressure environments can be formed in the six layered spaces inside the sampling drill barrel 1 through the negative pressure conduit 221 and the air extraction pipe 222 arranged at six equal intervals. The negative pressure suction force is used to suck water and soil samples at different depths into each layered space through the corresponding inlet 217, realizing the layered collection of samples. The air extraction pipe 222 corresponds to each layered space, ensuring the independence of the negative pressure in each layered space, ensuring that samples at different depths will not mix with each other, and improving the accuracy of sample collection.

[0037] Specifically, a dustproof mesh 224 is threaded to the bottom of the extraction pipe 222, and connectors 225 are threaded to both sides of the dustproof mesh 224. The dustproof mesh 224 is threaded to the bottom of the extraction pipe 222 through the connectors 225.

[0038] The effects achieved by the above components are as follows: the dustproof mesh 224 can prevent fine particles or impurities in the water and soil samples from being sucked into the air extraction pipe 222 and the negative pressure conduit 221, avoid pipe blockage, and ensure the normal operation of the negative pressure system. The dustproof mesh 224 is easily disassembled and cleaned by means of threaded connection through the connector 225. When the mesh is blocked or damaged, it can be easily replaced, and the maintenance operation is simple and convenient.

[0039] Specifically, the sampling mechanism 3 includes a spiral drill bit 31 threadedly connected to the bottom of the sampling drill barrel 1. A drill tip 32 is fixedly connected to the bottom of the spiral drill bit 31. Limiting members 33 are threadedly connected to both sides of the spiral drill bit 31. The spiral drill bit 31 is threadedly connected to the bottom of the sampling drill barrel 1 through the limiting members 33.

[0040] The effects achieved by the above components are as follows: During the descent of the sampling drill barrel 1, the spiral drill bit 31 can drill through the soil by rotating, making it easier for the sampling drill barrel 1 to penetrate into the soil at different depths for sampling. The drill tip 32 can reduce the resistance during drilling, making the drilling process more labor-saving and efficient, and improving the drilling capacity of the sampling device. The limiting component 33 plays a role in fixing and limiting the spiral drill bit 31, ensuring that it is firmly connected to the sampling drill barrel 1, preventing loosening or falling off during drilling. At the same time, the threaded connection also facilitates the disassembly and replacement of the spiral drill bit 31. When the drill bit is worn, it can be replaced in time to ensure the service life of the device.

[0041] Specifically, the sampling mechanism 3 includes a connecting support column 34 fixedly connected to the top of the sampling drill barrel 1. A connecting pipe 35 is fixedly connected to the top of the connecting support column 34. Limiting bolts 36 are threadedly connected to both sides of the connecting pipe 35. Two symmetrically arranged limiting nuts 37 are threadedly connected to the outer surface of the limiting bolts 36.

[0042] The effects achieved by the above components are as follows: the connecting pipe 35 can be used to connect to an external power device or operating rod, and the external driving force is transmitted to the sampling drill barrel 1 through the connecting support column 34 to realize the rotation and lifting operation of the sampling drill barrel 1. The limiting bolt 36 and the limiting nut 37 cooperate with each other to firmly fix the connecting pipe 35 to the external connecting parts. By adjusting the two symmetrically arranged limiting nuts 37, the connection length of the connecting pipe 35 can be finely adjusted to ensure the stability and reliability of the connection, prevent loosening or falling off during operation, and ensure the smooth progress of the sampling work.

[0043] Working principle: When collecting water and soil samples, the sampling device is first connected to the external power device through the connecting pipe 35. It is then fixed firmly with the limiting bolt 36 and the limiting nut 37. The power device is started, and under the action of the spiral drill cutter 31 and the drilling tip 32, the sampling drill barrel 1 gradually penetrates into the soil. The limiting part 33 ensures that the spiral drill cutter 31 and the sampling drill barrel 1 are stably connected.

[0044] Once the sampling drill barrel 1 reaches the designated depth, the negative pressure pump is connected to the negative pressure pump connection port 223. The negative pressure pump operates, generating negative pressure within the negative pressure conduit 221. This negative pressure environment is created in the six layered spaces inside the sampling drill barrel 1 through the suction pipe 222. The dustproof mesh 224 prevents impurities from entering the suction pipe 222. At this time, soil and water samples from different depths enter the layered spaces under the action of negative pressure through the corresponding inlet 217. The primary metal filter 218 performs preliminary filtration of the samples, and the annular cover 219 protects the inlet 217 and the filter.

[0045] In the sample entering the stratified space, water flows into the water collection box 211 through the fine filter 213, while soil remains in the stratified space, achieving water and soil separation. After sampling is completed, the negative pressure pump is turned off, and the sealing cap 216 on the drainage sampling pipe 214 is opened, allowing the water sample to be taken out from the water collection box 211. The sealing gasket 215 and the sealing cap 216 ensure the airtightness of the device during the sampling process, preventing sample leakage. Through the above process, the stratified collection, separation, and storage of water and soil samples at different depths are achieved, meeting the needs of sample analysis.

Claims

1. A sample collection device for stratified storage of soil and water, comprising a sampling drill (1), a stratification mechanism (2), and a connecting sampling mechanism (3), characterized in that: The layering mechanism (2) is fixedly connected to the inside of the sampling drill barrel (1), and the connecting sampling mechanism (3) is fixedly connected to the outer surface of the sampling drill barrel (1). The layering mechanism (2) includes a layered storage component (21) and a negative pressure layering component (22). The layered storage component (21) includes a water collection box (211), and the negative pressure layered component (22) includes a negative pressure conduit (221), which is fixedly connected to the inside of the sampling drill barrel (1). The layered storage component (21) includes six equally spaced layered partitions (212) fixedly connected inside the sampling drill cylinder (1). Fine filter screens (213) are provided on both sides of the layered partitions (212). The water collection box (211) is fixedly connected to the bottom of the fine filter screen (213). A drainage sampling pipe (214) is fixedly connected to the outer surface of the water collection box (211). One end of the drainage sampling pipe (214) is connected to the inside of the water collection box (211), and the other end of the drainage sampling pipe (214) extends to the outside of the sampling drill cylinder (1). A sealing gasket (215) is fixedly connected to the connection gap between the drainage sampling pipe (214) and the sampling drill cylinder (1).

2. The sample collection device for stratified storage of soil and water according to claim 1, characterized in that: The sealing gasket (215) is fixedly connected to the outer surface of the sampling drill (1), and the inside of the drainage sampling pipe (214) is fitted with a sealing cap (216).

3. The sample collection device for stratified storage of soil and water according to claim 1, characterized in that: The layered storage component (21) includes a sample inlet (217) on the outer surface of the sampling drill tube (1). A primary metal filter (218) is fixedly connected to the inner wall of the sample inlet (217). The sample inlet (217) and the primary metal filter (218) are arranged at six equal intervals on the outer surface of the sampling drill tube (1). An annular cover (219) is arranged at six equal intervals on the outer surface of the sampling drill tube (1).

4. The sample collection device for stratified storage of soil and water according to claim 1, characterized in that: The negative pressure stratification assembly (22) includes a negative pressure conduit (221) fixedly connected to both sides of the stratification partition (212). The negative pressure conduit (221) penetrates the interior of the sampling drill barrel (1). An air extraction pipe (222) is fixedly connected to the outer surface of the negative pressure conduit (221). The air extraction pipe (222) is arranged at six equal intervals on the outer surface of the negative pressure conduit (221). A negative pressure pump connection port (223) is fixedly connected to the top of the negative pressure conduit (221). The negative pressure pump connection port (223) is snapped onto the outer surface of the sampling drill barrel (1).

5. A sample collection device for stratified storage of soil and water according to claim 4, characterized in that: The bottom of the extraction pipe (222) is threaded with a dustproof mesh (224), and the two sides of the dustproof mesh (224) are threaded with connectors (225). The dustproof mesh (224) is threaded to the bottom of the extraction pipe (222) through the connectors (225).

6. The sample collection device for stratified storage of soil and water according to claim 1, characterized in that: The connecting sampling mechanism (3) includes a spiral drill bit (31) threaded to the bottom of the sampling drill barrel (1). A drill tip (32) is fixedly connected to the bottom of the spiral drill bit (31). Limiting members (33) are threaded to both sides of the spiral drill bit (31). The spiral drill bit (31) is threaded to the bottom of the sampling drill barrel (1) through the limiting members (33).

7. A sample collection device for stratified storage of soil and water according to claim 6, characterized in that: The connecting sampling mechanism (3) includes a connecting support column (34) fixedly connected to the top of the sampling drill barrel (1). A connecting pipe (35) is fixedly connected to the top of the connecting support column (34). Limiting bolts (36) are threadedly connected to both sides of the connecting pipe (35). Two symmetrically arranged limiting nuts (37) are threadedly connected to the outer surface of the limiting bolts (36).

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