Collecting device for soil layer sample detection in soil remediation engineering

Abstract

The utility model discloses a collecting device for soil layer sample detection in soil remediation engineering, and belongs to the technical field of soil sampling. Wherein the sealing part comprises an adjusting piece, a connecting ring, a plurality of connecting rods and a plurality of sealing covers, the adjusting piece guides the connecting rods to the position above the collecting cylinder, it is guaranteed that the sealing covers can completely cover a connecting channel between the collecting cylinder and the bottom of the collecting shell, and the sealing part guarantees stable sealing of the collected soil sample; the interference of external environmental factors on the sample detection accuracy is effectively reduced, the collection barrel is provided with a special barrel cover and can be separated from the collection shell, subsequent samples can be conveniently treated, high-precision collection of soil samples is achieved, the samples are effectively prevented from being damaged or polluted in the transfer process, and the sampling efficiency is improved. Therefore, the reliability of the detection result is improved.

Description

Technical Field

[0001] This utility model belongs to the field of soil sampling technology, and in particular relates to a collection device for soil layer sample testing in soil remediation projects. Background Technology

[0002] With the rapid advancement of industrialization and urbanization, soil pollution has gradually become a focal point of environmental science. When the accumulated pollutants in soil exceed its self-purification capacity threshold, the soil's chemical composition, physical structure, and ecological functions undergo significant changes. These changes not only inhibit the activity of soil microorganisms but also lead to the gradual accumulation of pollutants and their decomposition products in the soil. Therefore, the importance of remediating contaminated soil is increasingly prominent, especially in specific areas such as arable land, industrial sites, mining areas, and oilfields.

[0003] Soil sampling, as a fundamental and crucial step, plays an indispensable role. In soil remediation projects, drilling into the soil layer to gain a thorough understanding of geological conditions and soil composition is essential. Currently, most soil sampling equipment on the market is manually operated or simply mechanized, but these devices typically suffer from drawbacks such as high labor intensity, low efficiency, and complex structures. When retrieving soil samples from the ring cutter, soil drill, or sampling bucket, soil sample detachment is prone to occur, affecting the test results. Secondly, in existing sampling equipment, the sampling bucket is usually a non-removable component. After sampling contaminated soil, during the transfer of the sample from the sampling bucket to the collection bag, the sample inevitably comes into contact with air. Certain chemicals in the soil may react with air, affecting the accuracy of the tests. Furthermore, although some sampling buckets can be separated from the sampling equipment, effective sealing of the separated bucket is not possible, leading to potential damage or contamination of the sample during transfer. These problems not only highlight the importance of soil sampling in contaminated soil remediation but also place higher demands on the improvement of soil sampling equipment.

[0004] Therefore, developing a soil sample collection device for soil remediation projects to solve the above problems has become an urgent need for current technological development. Utility Model Content

[0005] The purpose of this invention is to provide a collection device for soil sample testing in soil remediation projects, so as to solve the above-mentioned technical problems.

[0006] Technical solution: A collection device for soil sample testing in soil remediation projects, comprising a collection shell and a collection assembly, wherein the collection shell is provided with a dedicated storage area for soil samples; the collection assembly comprises a guide drive part, a collection part and a sealing part, wherein the guide drive part comprises a drive motor and a rotating rod, the drive motor is mounted on the collection shell, one end of the rotating rod is connected to the output end of the drive motor, and the other end extends outward through the collection shell, wherein the outer side of the rotating rod is provided with auger blades;

[0007] The collection unit includes a rotating plate and several collection cylinders. The rotating plate is sleeved on the rotating rod and located in the dedicated storage area. The collection cylinders are detachable from the collection housing and located below the rotating plate. The collection cylinders are connected to the bottom of the collection housing.

[0008] The sealing part includes an adjusting component, a connecting ring, several connecting rods, and a sealing cover. The adjusting component is disposed on the acquisition housing. The connecting ring is installed on the acquisition housing. One end of each connecting rod is slidably disposed on the acquisition housing, and the other end extends into the acquisition housing and is connected to the sealing cover. Several connecting rods are arranged in a ring on the connecting ring. The adjusting component is connected to one of the connecting rods.

[0009] When the adjusting component moves the connecting rod above the collection cylinder, the sealing cover completely covers the connection between the collection cylinder and the bottom of the collection housing;

[0010] When the collection tube is diverted from the collection housing, the collection tube is fitted with a tube cap.

[0011] In one specific implementation, the collection housing includes a housing, a top cover connected to the top of the housing, and a bottom plate installed below the housing, the bottom plate having a plurality of threaded holes;

[0012] The outer ring of the collection tube opening is provided with a thread that matches the threaded hole;

[0013] The collecting cylinder corresponds one-to-one with the threaded hole.

[0014] The above technical solution ensures the stability of the components during the collection process, and the collection cylinder is threaded onto the base plate, making it easy for the collection cylinder to separate from the collection shell.

[0015] In one specific implementation, the rotating plate includes a sleeve and two long plates, the sleeve being fitted onto the rotating rod, and the two long plates being vertically and symmetrically arranged on the side wall of the sleeve;

[0016] The bottom length of the long plate is greater than the maximum distance from the center of the base plate to the threaded hole, and the long plate does not contact the connecting rod.

[0017] The above technical solution ensures that when the long plate rotates, the samples in the dedicated storage area can be evenly fed into the collection cylinder through the threaded holes, and that the long plate can rotate smoothly.

[0018] In one specific implementation, the lower surface of the top cover is provided with an annular groove that is adapted to the connecting ring, and the bottom of the annular groove is provided with a plurality of guide holes.

[0019] The above technical solution enables the connecting rods distributed on the connecting ring to slide smoothly along the trajectory of the guide hole and achieve positioning.

[0020] In one specific implementation, the adjusting component includes a support base, an adjusting motor, a rotating plate, and a limiting block. The support base is fixed on the top cover, the adjusting motor is mounted on the support base, the rotating plate is connected to the output end of the adjusting motor, and the limiting block is slidably mounted in the guide hole.

[0021] The limiting block is provided with a protrusion, and the rotating plate is connected to the protrusion;

[0022] The limiting block has a limiting hole, and a connecting rod is inserted into the limiting hole;

[0023] When the motor rotates, it drives the rotating plate to rotate, causing the limit block to slide along the trajectory of the guide hole, thereby driving the connecting rod to move.

[0024] The above technical solution adjusts the movement of the rotating plate and the limiting block along the trajectory of the guide hole by adjusting the motor, thereby controlling the sliding of the connecting rod and the sealing cover, and thus achieving precise sealing of the collection tube.

[0025] In one specific implementation, the sealing cap is tightly fitted to the base plate, and there is a gap between the bottom of the long plate and the upper surface of the sealing cap.

[0026] The above technical solution ensures the sealing performance of the sealing cap on the collection tube when the sealing cap is placed on it, while avoiding direct contact between the long plate and the sealing cap, thus increasing the service life of the device.

[0027] In one specific implementation, when one sealing cap moves above the collection tube, the remaining sealing caps correspond one-to-one with the threaded holes and completely cover them.

[0028] The above technical solution ensures complete coverage by matching the sealing cap with the collection tube, thus guaranteeing a tight seal during the collection process.

[0029] In one specific implementation scheme, a through hole is provided in the center of the base plate, and a protective shell is provided on the outer periphery of the auger blade, with one end of the protective shell installed at the through hole;

[0030] The protective shell has a notch at the lower side.

[0031] The above technical solutions prevent soil contamination from splashing during sampling and also prevent the auger blades from being contaminated by external sources.

[0032] This invention, through the design of a rotating rod, auger blades, and a rotating plate, effectively guides soil into the collection tube, ensuring the uniformity and representativeness of the collected samples. The sealing design allows for rapid and reliable sealing of the collected soil, preventing the samples from being affected by the external environment and reducing the impact on sample accuracy. The detachable design of the collection tube and the outer shell, along with the tube cap, facilitates subsequent sample processing, ensuring the integrity and purity of the samples during transfer, thereby achieving high-precision soil collection. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of this utility model.

[0034] Figure 2 This is a schematic diagram of the installation structure of the guide drive unit and the rotating plate in this utility model.

[0035] Figure 3 This is a schematic diagram of the installation structure of the sealing part, top cover, and bottom plate in this utility model.

[0036] Figure 4 This is a schematic diagram of the installation structure of the sealing part, guide drive, top cover and bottom plate in this utility model.

[0037] Figure 5 This is a bottom view of the top cover in this utility model.

[0038] Reference numerals: 1. Top cover; 11. Guide hole; 12. Annular groove; 2. Shell; 3. Base plate; 31. Threaded hole; 32. Through hole; 4. Guide drive unit; 41. Drive motor; 42. Rotating rod; 43. Screw blade; 5. Sealing unit; 51. Support base; 52. Adjusting motor; 53. Rotating plate; 54. Limiting block; 541. Protrusion; 55. Connecting rod; 56. Sealing cover; 6. Collection tube; 7. Protective shell; 8. Rotating plate; 81. Sleeve; 82. Long plate. Detailed Implementation

[0039] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. In other examples, to avoid confusion with this utility model, some technical features known in the art have not been described.

[0040] like Figures 1 to 5 As shown, this application provides a collection device for soil sample testing in soil remediation projects, including a collection shell and collection components. The collection shell includes a housing 2, a top cover 1, and a bottom plate 3. The top cover 1 and the bottom plate 3 are respectively installed above and below the housing 2, forming a dedicated storage area for containing soil. The bottom plate 3 has a through hole 32 in the center and several threaded holes 31 on its surface. The bottom surface of the top cover 1 has an annular groove 12, and the bottom of the annular groove 12 has several guide holes 11.

[0041] The collection assembly includes a guide drive unit 4, a collection unit, and a sealing unit 5. The drive unit includes a drive motor 41 and a rotating rod 42. The drive motor 41 is mounted on the top cover 1. One end of the rotating rod 42 is connected to the output end of the drive motor 41, and the other end extends outward through a through hole 32 on the bottom plate 3. A screw conveyor blade 43 is provided on the outer side of the outwardly extending rotating rod 42. The collection unit includes a rotating plate 8 and several collection cylinders 6. The rotating plate 8 includes a sleeve 81 and two long plates 82. The sleeve 81 is fitted onto the rotating rod 42 located inside the housing 2. The two long plates 82 are vertically and symmetrically arranged on the outer wall of the sleeve 81. The outer circumference of the collection cylinder 6's opening is provided with a threaded opening. The thread facilitates the installation and disassembly of the collection cylinder 6 and the collection housing. When the collection cylinder 6 is separated from the collection housing, the collection cylinder 6 is equipped with a cap, which facilitates sample storage and safe transportation, and effectively avoids sample damage or contamination during transfer. The sealing part 5 includes an adjusting component, a connecting ring, several connecting rods 55 and several sealing caps 56. The adjusting component is set on the top cover 1, the connecting ring is set in the annular groove 12, and several connecting rods 55 are distributed in a ring on the connecting ring. One end of the connecting rod 55 is slidably set in the guide hole 11, and the other end extends into the interior of the housing 2 and connects with the sealing cap 56. One of the connecting rods 55 is connected to the adjusting component, and the sealing cap 56 is tightly fitted with the bottom plate 3.

[0042] When the adjusting component moves the connecting rod 55 above the collection tube 6, the sealing cover 56 completely covers the collection tube 6, ensuring that the collected soil sample is isolated from the outside world.

[0043] Furthermore, the adjusting component includes a support base 51, an adjusting motor 52, a rotating plate 53, and a limiting block 54. The support base 51 is fixed on the top cover 1, the adjusting motor 52 is mounted on the support base 51, and the limiting block 54 is slidably mounted in the guide hole 11. The limiting block 54 has a protrusion 541. The rotating plate 53 is connected to both the output end of the adjusting motor 52 and the protrusion 541. The limiting block 54 has a limiting hole, in which a connecting rod 55 is inserted. When the adjusting motor 52 rotates, it drives the rotating plate 53 to rotate. The rotating plate 53 causes the limiting block 54 to slide along the trajectory of the guide hole 11, thereby driving the connecting rod 55 to move, so that the sealing cover 56 seals the collection cylinder 6.

[0044] Furthermore, the bottom length of the long plate 82 is greater than the maximum distance between the center of the base plate 3 and the threaded hole 31. The long plate 82 does not contact the connecting rod, and there is a gap between the bottom of the long plate 82 and the upper surface of the sealing cover 56, ensuring that the rotating plate 8 can allow the sample in the special storage area to pass evenly through the threaded hole 31 into the collection cylinder and rotate smoothly.

[0045] Furthermore, a protective shell 7 is provided on the outer periphery of the auger blade 43, with one end of the protective shell 7 installed at the through hole 32; a notch is provided on the lower side of the protective shell 7 to prevent the auger blade 43 from being contaminated by the outside and to prevent contaminated soil from splashing during the sampling process.

[0046] In this application, when one sealing cover 56 moves above the collection tube 6, the remaining sealing covers 56 correspond one-to-one with the threaded holes 31 and can completely cover them, effectively preventing soil sample contamination and leakage during the collection process and improving the accuracy and reliability of sampling.

[0047] The specific working process is as follows: The drive motor 41 drives the rotating rod 42, the rotating plate 8, and the auger blades 43 on its outer side to rotate, so that the soil is guided into the dedicated storage area along the direction of the rotating rod 42. The rotation of the rotating plate 8 ensures that the soil is evenly distributed into the collection tube 6, guaranteeing the consistency and representativeness of the soil sample. After collection, the adjustment motor 52 drives the rotating plate 53 to rotate, thereby moving the limiting block 54 and the connecting rod 55 along the trajectory of the guide hole 11. This allows the sealing cover 56 to cover and seal the collection tube 6, ensuring that the collected soil sample is isolated from the outside environment and preventing contamination or cross-contamination. Furthermore, the collection tube 6 is equipped with a cap after disassembly, facilitating convenient and safe transportation and storage of samples.

[0048] In this application, the adjusting component uses a motor to drive the rotation of the rotating plate 53, achieving precise positioning of the sealing cover 56 on the collection cylinder 6. The limiting block 54 slides within the guide hole 11, ensuring that the sealing cover 56 accurately covers the collection cylinder 6. This sealing structure design not only improves the ease of operation of the device but also further enhances the accuracy of sampling and the integrity of the sample.

[0049] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.

Claims

1. A collection device for soil sample testing in soil remediation projects, comprising a collection shell and collection components, characterized in that: The collection housing is equipped with a dedicated storage area for soil samples; the collection assembly includes a guide drive unit (4), a collection unit and a sealing unit (5). The guide drive unit (4) includes a drive motor (41) and a rotating rod (42). The drive motor (41) is mounted on the collection housing. One end of the rotating rod (42) is connected to the output end of the drive motor (41), and the other end passes through the collection housing and extends outward. The outer side of the rotating rod (42) is provided with auger blades (43). The collection unit includes a rotating plate (8) and several collection cylinders (6). The rotating plate (8) is sleeved on the rotating rod (42) and located in the dedicated storage area. The collection cylinders (6) can be separated from the collection shell and are located below the rotating plate (8). The collection cylinders (6) are connected to the bottom of the collection shell. The sealing part (5) includes an adjusting member, a connecting ring, a plurality of corresponding connecting rods (55) and a sealing cover (56). The adjusting member is disposed on the collection housing, the connecting ring is installed on the collection housing, one end of the connecting rod (55) is slidably disposed on the collection housing, and the other end extends into the collection housing and is connected to the corresponding sealing cover (56). A plurality of the connecting rods (55) are arranged in a ring on the connecting ring, and the adjusting member is connected to one of the connecting rods (55). When the adjusting component moves the connecting rod (55) above the collection cylinder (6), the sealing cover (56) completely covers the connection between the collection cylinder (6) and the bottom of the collection housing; When the collection tube (6) is separated from the collection housing, the collection tube (6) is fitted with a tube cover.

2. The collection device for soil layer sample testing in soil remediation projects according to claim 1, characterized in that: The collection housing includes a housing (2), a top cover (1) connected above the housing (2), and a bottom plate (3) installed below the housing (2). The bottom plate (3) has several threaded holes (31). The outer ring of the opening of the collection tube (6) is provided with a thread that matches the threaded hole (31); The collecting cylinder (6) corresponds one-to-one with the threaded hole (31).

3. The collection device for soil sample testing in soil remediation projects according to claim 2, characterized in that: The rotating plate (8) includes a sleeve (81) and two long plates (82). The sleeve (81) is sleeved on the rotating rod (42), and the two long plates (82) are vertically and symmetrically arranged on the side wall of the sleeve (81). The bottom length of the long plate (82) is greater than the maximum distance from the center of the bottom plate (3) to the threaded hole (31), and the long plate (82) does not contact the connecting rod.

4. The collection device for soil layer sample testing in soil remediation projects according to claim 2, characterized in that: The lower surface of the top cover (1) is provided with an annular groove (12) that is adapted to the connecting ring, and the bottom of the annular groove (12) is provided with a plurality of guide holes (11).

5. A soil sample collection device for soil remediation engineering according to claim 4, characterized in that: The adjusting component includes a support base (51), an adjusting motor (52), a rotating plate (53), and a limiting block (54). The support base (51) is fixed on the top cover (1), the adjusting motor (52) is mounted on the support base (51), the rotating plate (53) is connected to the output end of the adjusting motor (52), and the limiting block (54) is slidably mounted in the guide hole (11). The limiting block (54) is provided with a protrusion (541), and the rotating plate (53) is connected to the protrusion (541); The limiting block (54) has a limiting hole, and a connecting rod (55) is inserted into the limiting hole; When the regulating motor (52) rotates, it drives the rotating plate (53) to rotate, causing the limiting block (54) to slide along the trajectory of the guide hole (11), thereby driving the connecting rod (55) to move.

6. The soil sample collection device for soil remediation engineering according to claim 3, characterized in that: The sealing cap (56) is tightly fitted to the base plate (3), and there is a gap between the bottom of the long plate (82) and the upper surface of the sealing cap (56).

7. A soil sample collection device for soil remediation engineering according to claim 2, characterized in that: When one sealing cap (56) moves above the collection tube (6), the remaining sealing caps (56) correspond one-to-one with the threaded holes (31) and completely cover them.

8. A soil sample collection device for soil remediation engineering according to claim 3, characterized in that: The base plate (3) has a through hole (32) in the center, and the outer periphery of the auger blade (43) is provided with a protective shell (7), one end of the protective shell (7) is installed at the through hole (32); The protective shell (7) has a notch at the lower side.

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