Water pollution detection device and detection method for geological environment investigation

Abstract

The invention provides a water pollution detection device and a detection method for geological environment investigation, belongs to the field of water pollution detection, and aims to solve the problems of complicated operation and cross contamination of samples during underground water stratified sampling. Comprising N fixed sleeve units, a fixing mechanism, N sampling pipes, a switching mechanism, N filling mechanisms, N detection mechanisms, a suction pipe and a suction mechanism, and N is greater than 1; by arranging a plurality of fixed sleeve units and sampling pipes, and matching with a sealing piece and a switching mechanism, independent sampling at different depths can be realized, so that sample mixing among different water layers is effectively prevented, and the accuracy and representativeness of a detection result are ensured; through cooperation of the elastic piece and the fixing mechanism, the device can be tightly attached to the wall of a drill hole to adapt to different hole diameters and geological conditions, meanwhile, the suction mechanism can discharge liquid in the downward exploration process, and downward exploration resistance and disturbance are reduced.

Description

Technical Field

[0001] This invention belongs to the field of water pollution detection, and in particular relates to a water pollution detection device and method for geological environmental surveys. Background Technology

[0002] In environmental geological surveys, site pollution assessments, groundwater monitoring, and tailings dam leakage detection, understanding the vertical distribution and migration patterns of pollutants in the vadose zone and saturated aquifers is crucial. As pollutants migrate downwards with rainwater or leachate, they exhibit significantly different concentration distributions at different depths in soil and groundwater due to adsorption, degradation, and dilution. Therefore, obtaining undisturbed water samples from specific aquifers or at specific depth intervals in boreholes is key to accurately determining the extent of pollution, the depth of the pollution source, and the pollution plume.

[0003] Currently, the following methods are commonly used for stratified sampling of groundwater in boreholes, but they all have significant limitations: Fixed-depth samplers have low single-use efficiency: When operators use fixed-depth samplers (such as Bayler tubes or bladder pumps), they need to lower the sampler to the target depth, collect samples, retrieve it, empty the sampler, and then proceed to the next depth. The entire process requires repeated manipulation of cables or pipelines, making the procedure cumbersome and extremely inefficient.

[0004] The sampling process is highly turbulent, resulting in insufficient sample representativeness: When using open-type samplers such as Bayler tubes, the sampler passes through all the water layers above it during the lowering process. The water inside the sample has been replaced and mixed multiple times before reaching the target depth, which means that the sample cannot represent the pure water quality at the target depth. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a device and method for detecting water pollution in geological environmental surveys, which solves the problems of cumbersome operation and cross-contamination of samples when sampling groundwater in layers in the prior art.

[0006] To achieve the above and other related objectives, the present invention provides a geological environment survey water pollution detection device, comprising: N fixed sleeve units, a fixing mechanism, N sampling tubes, a connecting mechanism, N injection mechanisms, N detection mechanisms, a suction tube, and a suction mechanism, where N is greater than 1; the N fixed sleeve units are detachably connected to form a detection rod extending into a borehole; each fixed sleeve unit includes: a sleeve body, multiple first fixing members, and a first elastic member; the sleeve body has multiple first slots spaced apart circumferentially along its axial direction on its sleeve wall; each first fixing member is correspondingly disposed at a first slot, and the first end of the first fixing member is connected to the sleeve body. The sleeve body is connected to a second end that extends downwards and forms a clearance gap with the sleeve body to allow liquid to flow into the sleeve body. A first elastic element is sleeved around the outer periphery of the sleeve body and all first fixing elements to close the clearance gap. The fixing mechanism includes: N fixing seats, N connecting rods, multiple second fixing elements, N abutment elements, and fixing components. Each fixing seat is correspondingly disposed within a sleeve body and rotatably connected to the inner wall of the sleeve body. The fixing seat has a first through hole, a second through hole, and at least one third through hole. The first end of each second fixing element is connected to the bottom of a fixing seat, and the second end extends downwards, with its position opposite to the first fixing element. Each abutment is connected to the bottom end of a connecting rod for abutting against the inner side of the second fixing member; the top end of the connecting rod passes through the first through hole and is detachably connected to the bottom end of the adjacent abutment; the top end of the uppermost connecting rod extends out of the borehole; a fixing assembly is set on the ground for fixing the top end of the connecting rod extending from the borehole; by moving the connecting rod upward, the second fixing member causes the first fixing member to rotate relative to the sleeve body, thereby causing the first elastic member to abut against the borehole wall and open the clearance gap; a suction tube passes through the second through hole, with its first end extending out of the borehole and connected to the suction mechanism, and its second end located below the lowermost fixing seat. The sampling tube is inserted through the third through hole, with its first end extending out of the borehole. A second end of the sampling tube is provided between every two fixed seats, and a second end of the sampling tube is provided at the lower end of the lowest fixed seat. Each sampling tube has a detachable closure at its second end. A connecting mechanism is provided on the ground for selectively connecting the first end of the sampling tube to the injection mechanism or the detection mechanism. When the first end of the sampling tube is connected to the injection mechanism, the injection mechanism injects high-pressure gas into the sampling tube to dislodge the closure from the first end of the sampling tube. When the first end of the sampling tube is connected to the detection mechanism, the detection mechanism removes the liquid from the borehole.

[0007] Optionally, the fixing assembly includes a fixing plate and a third fixing member. The fixing plate is used to abut against the ground and has a clearance hole for the connecting rod to pass through. The third fixing member is detachably connected to the end of the connecting rod that extends out of the drill hole and abuts against the upper side of the fixing plate.

[0008] Optionally, the suction mechanism includes a first pump body for drawing liquid through a suction tube.

[0009] Optionally, the adapter mechanism includes N first connecting tubes, N quick-release female connectors, N second connecting tubes, N third connecting tubes, 2N quick-release male connectors, a reset assembly, a reversing assembly, a first connector, a second connector, a first drive assembly, and a second drive assembly; one end of each first connecting tube is connected to the first end of a sampling tube, and the other end is provided with a quick-release female connector; one end of each second connecting tube is connected to a detection mechanism, and the other end is connected to a quick-release male connector; one end of each third connecting tube is connected to an injection mechanism, and the other end is connected to a quick-release male connector, and the second... The connecting tube and the second connecting tube are spaced apart; each reset component is connected to a quick-release male connector; the reversing component is connected to the first drive component, the first end of the reversing component is connected to N first connecting tubes through a first connector, and the second end is connected to the locking sleeves on N quick-release female connectors through a second connector; the first drive component is used to drive the reversing component to move up and down, so that the quick-release male connector and the quick-release female connector are disengaged or connected together; the first drive component is disposed on the second drive component, and the second drive component is used to drive the first drive component to move in a direction perpendicular to the axial direction of the sampling tube.

[0010] Optionally, the reversing assembly includes a first mounting plate, two first guide members, two opposing racks, a gear, and two limiting members; the two first guide members are spaced apart on the first mounting plate, each rack is slidably connected to one of the first guide members, one rack is connected to a first connecting member, and the other rack is connected to a second connecting member; the gear is rotatably connected to the output end of the first drive assembly and meshes with the two racks respectively; the first drive assembly is used to drive the gear to move up and down; the two limiting members are spaced apart on the first mounting plate and correspond to the upper and lower limit positions of the racks connected to the first connecting members respectively.

[0011] Optionally, the first drive assembly includes a second mounting plate, a first drive member, a second guide member, and a fourth fixing member; the first drive member and the second guide member are disposed on the second mounting plate; the fourth fixing member is connected to the output end of the first drive member and is slidably connected to the second guide member; the gear is rotatably connected to the fourth fixing member.

[0012] Optionally, the reset assembly includes a third mounting plate and a second elastic member; the third mounting plate is provided with 2N clearance holes, each second connecting pipe and each third connecting pipe is provided with a clearance hole, one end of the second elastic member abuts against the third mounting plate, the other end abuts against the quick-release male connector, and the second elastic member is sleeved on the corresponding second connecting pipe or third connecting pipe.

[0013] Optionally, the second drive assembly includes a fourth mounting plate, a fifth mounting plate, a second drive member, and a third guide member; the second drive member and the third guide member are disposed on the fourth mounting plate, the fifth mounting plate is connected to the output end of the second drive member and is slidably connected to the third guide member; the second mounting plate is disposed on the fifth mounting plate.

[0014] Optionally, the testing mechanism includes a sample storage unit and a testing unit, the sample storage unit being connected to a second connecting pipe, and the testing unit being disposed within the sample storage unit for testing the liquid; and / or, the infusion mechanism includes a first pipeline, a second pipeline, a three-way valve, a second pump body, a third pump body, and a drug storage tank; the three-way valve is connected to the first pipeline, the second pipeline, and the third connecting pipe respectively; the second pump body is connected to the first pipeline and is used to inject air into the sampling tube to dislodge the sealing element from the first end of the sampling tube; the third pump body is connected to the second pipeline and the drug storage tank respectively, and is used to inject the drug in the drug storage tank into the sleeve body through the sampling tube.

[0015] On the other hand, a method for detecting water pollution in geological environmental surveys is also provided, including the aforementioned device for detecting water pollution in geological environmental surveys, and further including the following steps: Installation steps: Connect the fixed sleeve units together and insert them into the borehole; while inserting, simultaneously start the suction mechanism to drain the liquid in the borehole; after insertion, pull the connecting rod upward to open the clearance gap of the first elastic element and make the first elastic element abut against the borehole wall, and use the fixing assembly to fix the connecting rod to the bottom surface. Seal removal procedure: First, use the adapter to connect the first end of the sampling tube to the injection mechanism, and then use the injection mechanism to remove the seal set on the second end of the sampling tube. Testing steps: Use an adapter to connect the first end of the sampling tube to the testing mechanism to complete the sampling and testing.

[0016] As described above, the geological environment survey water pollution detection device and method of the present invention have at least the following beneficial effects: 1. Achieve precise stratified sampling and avoid cross-contamination; by setting up multiple fixed sleeve units and sampling tubes, along with sealing components and transfer mechanisms, independent sampling can be performed at different depths, effectively preventing sample mixing between different water layers and ensuring the accuracy and representativeness of test results.

[0017] 2. Compact structure and high degree of automation: The conversion mechanism, which combines quick-release connectors, reversing components and drive components, can quickly switch between sampling tubes and detection or injection mechanisms, greatly improving sampling and detection efficiency and reducing manual operation intensity.

[0018] 3. High adaptability and suitable for complex geological environments: Through the cooperation of elastic elements and fixing mechanisms, the device can fit tightly against the borehole wall, adapting to different borehole diameters and geological conditions. At the same time, the suction mechanism can discharge liquid during the descent, reducing descent resistance and disturbance.

[0019] 4. Possesses treatment function, realizing integrated detection and treatment: The injection mechanism can inject treatment agents into the borehole according to the detection results, realizing in-situ remediation of polluted water bodies, expanding the functionality and practicality of the device.

[0020] 5. The sampling process is closed and controllable, ensuring the authenticity of the sample: The end of the sampling tube is equipped with a detachable closure, which is only opened by high-pressure gas before testing, effectively avoiding contamination before sampling and ensuring the originality and reliability of the sample. Attached Figure Description

[0021] Figure 1 The diagram shown is an overall structural schematic of a geological environment survey water pollution detection device according to the present invention.

[0022] Figure 2 The diagram shown is a structural schematic of the sleeve body of the present invention.

[0023] Figure 3 The diagram shown is a structural schematic of the fixing mechanism of the present invention.

[0024] Figure 4 Displayed as Figure 3 An enlarged diagram of point A in the diagram.

[0025] Figure 5 The diagram shows a partial structural cross-sectional view of the connection between the sleeve body and the fixing mechanism of the present invention.

[0026] Figure 6 The diagram shown illustrates the structure of the transfer mechanism, detection mechanism, and injection mechanism of this invention.

[0027] Figure 7 The diagram shown is a schematic diagram of the adapter structure of the present invention at an angle.

[0028] Figure 8 This is a schematic diagram of the adapter structure of the present invention from another angle.

[0029] Figure 9 This is a schematic diagram of the adapter structure of the present invention from another angle.

[0030] Figure 10 Displayed as Figure 9 An enlarged diagram of point B in the diagram.

[0031] Figure 11 The diagram shown is a structural schematic of the infusion mechanism of the present invention.

[0032] Figure 12 The diagram shown is a structural schematic of the detection mechanism of the present invention.

[0033] Component designation explanation: 1. Fixed sleeve unit; 11. Sleeve body; 111. First slot; 112. First flange; 12. First fixing element; 13. First elastic element; 14. Clearance gap. 2. Fixing mechanism; 21. Fixing base; 211. First through hole; 212. Second through hole; 213. Third through hole; 22. Connecting rod; 23. Second fixing member; 24. Abutting member; 25. Fixing assembly; 251. Fixing plate; 252. Third fixing member; 3. Sampling tube; 31. Sealing component; 4. Adapter mechanism; 41. First connecting pipe; 411. Second flange; 412. Sliding sleeve; 413. Third flange; 42. Quick-release female connector; 43. Second connecting pipe; 44. Third connecting pipe; 45. Quick-release male connector; 46. Reset assembly; 461. Third mounting plate; 462. Second elastic element; 47. Reversing assembly; 471. First mounting plate; 472. First guide element; 473. Rack; 474. Gear; 475. Limiting element; 48. First connecting element; 49. Second connecting element; 50. First drive assembly; 501. Second mounting plate; 502. First drive element; 503. Second guide element; 504. Fourth fixing element; 51. Second drive assembly; 511. Fourth mounting plate; 512. Fifth mounting plate; 513. Second drive element; 514. Third guide element; 5. Injection mechanism; 52. First pipeline; 53. Second pipeline; 54. Three-way valve; 55. Second pump body; 56. Third pump body; 57. Medicine storage tank. 6. Testing institution; 61. Sample storage device; 62. Testing device; 7. Suction tube; 8. Suction mechanism. Detailed Implementation

[0034] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0035] Please refer to all the accompanying drawings below. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0036] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0037] Please see Figure 1-5 The present invention provides a device for detecting water pollution in geological environment surveys, comprising N fixed sleeve units 1, a fixing mechanism 2, N sampling tubes 3, a transfer mechanism 4, N injection mechanisms 5, N detection mechanisms 6, a suction tube 7, and a suction mechanism 8, wherein N is greater than 1.

[0038] N fixed sleeve units 1 are detachably connected by threads or other structures to form a probe that extends into a borehole. The borehole is a pre-drilled hole at the sampling location using drilling equipment to facilitate sampling of the geological environment. Each fixed sleeve unit 1 includes: a sleeve body 11, multiple first fixing members 12, and a first elastic member 13. The sleeve body 11 has multiple first slots 111 spaced apart circumferentially on its cylindrical wall, extending axially. Each first fixing member 12 is correspondingly disposed at a first slot 111. The first end of the first fixing member 12 is connected to the sleeve body 11, and the second end extends downward, forming a clearance gap 14 between it and the sleeve body 11 to allow liquid to flow into the sleeve body 11. The first elastic member 13 is an elastic sleeve made of elastic material such as rubber, which is sleeved on the outer periphery of the sleeve body 11 and all the first fixing members 12 to close the clearance gap 14. A first flange 112 may be provided on the outer side wall of the sleeve body 11. The lower side of the first flange 112 is used to abut against the end of the first elastic member 13 away from the clearance gap 14, which is used to prevent the first elastic member 13 from moving upward relative to the sleeve body 11.

[0039] The fixing mechanism 2 includes: N fixing seats 21, N connecting rods 22, multiple second fixing members 23, N abutment members 24, and a fixing assembly 25. Each fixing seat 21 is correspondingly disposed inside a sleeve body 11 and is rotatably connected to the inner wall of the sleeve body 11, specifically, it can be threadedly connected to the inner side wall of the sleeve body 11. The fixing seat 21 has a first through hole 211, a second through hole 212, and at least one third through hole 213. The first end of each second fixing member 23 is connected to the bottom of a fixing seat 21, and the second end extends downwards, corresponding to the position of the first fixing member 12. Each abutment member 24 is connected to the bottom end of a connecting rod 22 for abutting against the inner side of the second fixing member 23. The top end of the connecting rod 22 passes through the first through hole 211 and is detachably connected to the bottom end of the adjacent abutment member 24, specifically, it can be threadedly connected, with the top end of the uppermost connecting rod 22 extending out of the drilled hole. The fixing component 25 is set on the ground to fix the top end of the connecting rod 22 extending from the borehole to the ground.

[0040] The suction tube 7 passes through the second through hole 212, with its first end extending out of the borehole and connected to the suction mechanism 8, and its second end located at the lower end of the lowest fixed seat 21. The suction mechanism 8 may include a first pump body, which is used to extract liquid located below the lowest fixed seat 21.

[0041] The sampling tube 3 passes through the third through hole 213, with its first end extending out of the borehole. A second end of the sampling tube 3 is positioned between every two fixing seats 21, and a second end of the sampling tube 3 is located at the lower end of the lowest fixing seat 21. Each sampling tube 3 has a detachable closure 31 at its second end. The sampling tube 3 and the third through hole 213 can be fixed together using adhesive or similar materials, forming a sealed structure to prevent liquid flow.

[0042] like Figure 1 , 2 As shown in Figure 4, in this embodiment, N is 2. There are two third through holes 213 on each fixing seat 21. Before the fixing sleeve unit 1 is inserted into the drill hole, one of the third through holes 213 on the lowest fixing seat 21 is blocked using a structure such as an elastic sealing plug to prevent cross-contamination of liquids from different layers. The sealing element can also be an elastic sealing plug, which has an interference fit with the sampling tube 3, thereby achieving a sealing effect. By setting the sealing element, it is ensured that no liquid enters the sampling tube 3 before sampling, avoiding cross-contamination.

[0043] The adapter 4 is located on the ground and is used to selectively connect the first end of the sampling tube 3 to the injection mechanism 5 or the detection mechanism 6.

[0044] In use, the fixed sleeve unit 1 is detachably connected, and the fixing mechanism 2 is placed inside the fixed sleeve unit 1. Then, the entire assembly is placed into the borehole. During placement, the internal pressure of the borehole increases due to the insertion of the sleeve unit, thus increasing the force required to insert the sleeve unit. Simultaneously, after the drilling equipment is removed from the borehole, the liquid inside the borehole flows, and liquids from different layers can circulate, leading to cross-contamination. Therefore, before insertion, the second end of the suction tube 7 is placed below the second end of the sampling tube 3 located at the lower end of the lowest fixing seat 21. Preferably, the second end of the suction tube 7 extends outside the sleeve body 11, allowing the suction tube 7 to contact the liquid inside the borehole first. During insertion, the suction mechanism 8 is simultaneously activated, using the suction tube 7 to extract the liquid below the lowest fixing seat 21. This not only reduces the resistance during sleeve unit insertion but also ensures that samples from the corresponding locations are obtained during subsequent sampling, preventing cross-contamination.

[0045] After insertion, first close the suction mechanism 8, and then move the connecting rod 22 upward. At this time, the abutment 24 abuts against the corresponding second fixing member 23, and causes the second fixing member 23 to deform, so that the second fixing member 23 abuts against the first fixing member 12. The first fixing member 12 also deforms with the deformation of the second fixing member 23, so that the first elastic member 13 also deforms, so that the first elastic member 13 abuts against the hole wall of the drilled hole. At this time, since the first end of the first fixing member 12 is approximately rotating relative to the sleeve body 11, the first elastic member 13 can open the clearance gap 14, so that the liquid enters the sleeve body 11 from the clearance gap 14.

[0046] Then, the sampling tube 3 is connected to the injection mechanism 5 using a transfer structure. The injection mechanism 5 injects high-pressure gas into the sampling tube 3 to flush out the sealing element from the first end of the sampling tube 3. Finally, the sampling tube 3 is connected to the detection mechanism 6 using the transfer mechanism again. The detection mechanism 6 can extract the liquid at the corresponding location from the borehole to complete the sampling operation. It can be understood that the sealing element is designed to prevent the liquid in the borehole from contacting the sampling tube 3 and causing contamination of the sampling tube 3 if the suction force of the suction mechanism 8 is insufficient before sampling.

[0047] The fixing assembly 25 may include a fixing plate 251 and a third fixing member 252. The lower side of the fixing plate 251 is used to abut against the ground, and the fixing plate 251 is provided with a clearance hole for the connecting rod 22 to pass through. The third fixing member 252 is detachably connected to the end of the connecting rod 22 that extends out of the drill hole. Specifically, the third fixing member 252 may be a nut, which is threadedly connected to the end of the connecting rod 22 that extends out of the drill hole. The lower side of the third fixing member 252 abuts against the upper side of the fixing plate 251, thereby using the fixing plate 251 to fix the connecting rod 22 to the ground surface to maintain the first elastic member 13 abutting against the hole wall of the drill hole.

[0048] To prevent the abutment 24 from rotating relative to the fixed base 21, a raised strip can be provided on the outer surface of the connecting rod 22, and a rectangular groove can be provided in the first through hole 211 of the fixed base 21. The cooperation of the raised strip and the rectangular groove restricts the rotation of the connecting rod 22, thereby preventing interference between the second fixed member 23 and the abutment 24 and the sampling tube 3 or suction tube 7. Furthermore, to further prevent cross-contamination of liquids from different layers, an elastic sealing structure, such as a sealing ring, can be provided on the inner wall of the first through hole 211 to prevent liquid from passing through the gap between the first through hole 211 and the connecting rod 22.

[0049] like Figure 6-9 As shown, the adapter mechanism 4 may include N first connecting tubes 41, N quick-release female connectors 42, N second connecting tubes 43, N third connecting tubes 44, 2N quick-release male connectors 45, a reset assembly 46, a reversing assembly 47, a first connector 48, a second connector 49, a first drive assembly 50, and a second drive assembly 51. One end of each first connecting tube 41 is connected to the first end of a sampling tube 3, and the other end is provided with a quick-release female connector 42. One end of each second connecting tube 43 is connected to the detection mechanism 6, and the other end is connected to a quick-release male connector 45. One end of each third connecting tube 44 is connected to the infusion mechanism 5, and the other end is connected to a quick-release male connector 45, with the second connecting tubes 43 and the second connecting tubes 43 spaced apart. Each reset assembly 46 is connected to a quick-release male connector 45. The quick-release coupling includes a quick-release male coupling 45 and a quick-release female coupling 42, and the quick-release female coupling 42 is provided with a locking sleeve. The quick-release coupling is an existing structure in the pipeline field, and this embodiment will not elaborate on it further.

[0050] The reversing assembly 47 is connected to the first drive assembly 50. The first end of the reversing assembly 47 is connected to N first connecting pipes 41 via a first connector 48, and the second end is connected to locking sleeves on N quick-release female connectors 42 via a second connector 49. The first drive assembly 50 is used to drive the reversing assembly 47 to move up and down, so that the quick-release male connector 45 and the quick-release female connector 42 are disengaged or connected together. The first drive assembly 50 is mounted on a second drive assembly 51, which drives the first drive assembly 50 to move in a direction perpendicular to the axial direction of the sampling pipe 3.

[0051] Specifically, the reversing assembly 47 may include a first mounting plate 471, two second guide members 503, two opposing racks 473, a gear 474, and two limiting members 475. The first guide members 472 can be guide rails, and the two first guide members 472 are spaced apart on the first mounting plate 471. Each rack 473 is slidably connected to a first guide member 472 via a slider. One rack 473 is connected to a first connecting member 48, and the other rack 473 is connected to a second connecting member 49. The gear 474 is rotatably connected to the output end of the first drive assembly 50 and meshes with both racks 473. The first drive assembly 50 is used to drive the gear 474 to move up and down. The two limiting members 475 are spaced apart on the first mounting plate 471 and correspond to the upper and lower limit positions of the racks 473 connected to the first connecting member 48, respectively.

[0052] In one implementation, the first connecting pipe 41 can be a flexible pipe so that the connection end between the first connecting pipe 41 and the quick-release female connector 42 can move downward or upward under the action of the first driving member 502.

[0053] like Figure 9-10 As shown, in another implementation, the connecting section between the first connecting pipe 41 and the sampling pipe 3 is a flexible pipe, while the connecting section with the quick-release female connector 42 is a rigid pipe, and the end of the rigid pipe is provided with a second flange 411. The quick-release female connector 42 is disposed on one end of a sliding sleeve 412, which is sleeved on the rigid pipe. The inner side of the sliding sleeve 412 away from the quick-release female connector 42 is provided with a third flange 413 for abutting against the second flange 411. An elastic sealing structure, such as an O-ring, is provided at the connection between the third flange 413 and the second flange 411 to achieve a seal when the second flange 411 and the third flange 413 abut against each other. An elastic sealing structure, also an O-ring, can be provided on the outer surface of the second flange 411 to abut against the inner wall of the sliding sleeve 412 to achieve a seal. Understandably, in this implementation, when the first drive assembly 50 drives the quick-release female connector 42 to move downwards or downwards, the sliding sleeve 412 slides on the outer wall of the rigid tube.

[0054] The first drive assembly 50 includes a second mounting plate 501, a first drive member 502, a second guide member 503, and a fourth fixing member 504. The first drive member 502 can be a lead screw motor, and the second guide member 503 can be a guide rail. The first drive member 502 and the second guide member 503 are mounted on the second mounting plate 501. The fourth fixing member 504 is connected to the output end of the first drive member 502 through a lead screw nut and is slidably connected to the second guide member 503 through a slider. The gear 474 is rotatably connected to the fourth fixing member 504.

[0055] The reset assembly 46 includes a third mounting plate 461 and a second elastic member 462. The third mounting plate 461 has 2N clearance holes, with each second connecting tube 43 and each third connecting tube 44 corresponding to one clearance hole and slidably connected to it. The second elastic member 462 is a spring, with one end abutting against the third mounting plate 461 and the other end abutting against the quick-release male connector 45. The second elastic member 462 is sleeved on the corresponding second connecting tube 43 or third connecting tube 44.

[0056] The second drive assembly 51 includes a fourth mounting plate 511, a fifth mounting plate 512, a second drive member 513, and a third guide member 514. The second drive member 513 can be a lead screw motor, and the third guide member 514 can be a guide rail. The second drive member 513 and the third guide member 514 are mounted on the fourth mounting plate 511, and the third mounting plate 461 is also mounted on the fourth mounting plate 511. The fourth mounting plate 511 is connected to the output end of the second drive member 513 through a lead screw nut, and is slidably connected to the third guide member 514 through a slider. The second mounting plate 501 is mounted on the fourth mounting plate 511.

[0057] like Figure 9 As shown, the rack 473 on the left is defined as the left rack, which is connected to the quick-release female connector 42 via the first connector 48. The rack 473 on the right is the right rack, which is connected to the locking sleeve of the quick-release female connector 42 via the second connector 49. The lower limiting member 475 is defined as the lower limiting member (corresponding to the lower limit position), and the upper limiting member 475 is defined as the upper limiting member (corresponding to the upper limit position). In this figure, the quick-release male connector 45 and the quick-release female connector 42 provided on the second connecting pipe 43 are connected together. At this time, the first connecting pipe 41 and the second connecting pipe 43 are connected, that is, connected to the detection mechanism 6, and the reset assembly 46 is in the initial state.

[0058] In this embodiment, in order to ensure that the left and right racks can move downwards simultaneously, a counterweight is provided on the second connector 49 to balance the load between the left and right racks. Thus, when the rack 473 connected to the first connector 48 is not at its upper or lower limit position, the first drive assembly 50 can drive the left and right racks to move downwards synchronously, and at this time the gear 474 will not rotate relative to the first fixed member 12.

[0059] When the first connecting pipe 41 needs to connect with the third connecting pipe 44, the first driving member 502 first drives the fourth fixing member 504 to move downward. The fourth fixing member 504 drives the left rack and right rack to move downward synchronously through the gear 474. At this time, the quick-release female connector 42 on the first connecting pipe 41 and the quick-release male connector 45 on the second connecting pipe 43 move downward synchronously, and the second elastic member 462 of the reset assembly 46 is stretched here.

[0060] When the left rack moves to abut against the lower limit member, the first driving member 502 continues to drive the fourth fixing member 504 downward. The left rack is subjected to an upward force exerted by the lower limit member, causing the gear 474 to rotate, thus causing the right rack to continue moving downward. This, in turn, uses the second connecting member 49 to drive the locking sleeve of the quick-release female connector 42 downward until the quick-release male connector 45 disengages from the quick-release female connector 42. After the quick-release male connector 45 disengages from the quick-release female connector 42, the quick-release male connector 45 (second connecting tube 43) returns to its initial position under the elastic force of the second elastic member 462. After the left rack abuts against the lower limit member, the first driving member 502 continues to drive the fourth fixing member 504 downward, at which point the left rack remains in contact with the lower limit member.

[0061] Then, the second driving component 513 drives the fourth mounting plate 511 to move to the left, that is, it drives the first driving assembly 50 and the reversing assembly 47, the first connector 48, the second connector 49, etc., set on the first driving assembly 50 to move to the left, until the two first connecting pipes 41 are respectively located below the corresponding third connecting pipes 44. It can be understood that, since the connection section between the first connecting pipe 41 and the sampling pipe 3 is a flexible pipe, the first connecting pipe 41 and the sampling pipe 3 maintain a connection state when the second driving component 513 drives the fourth mounting plate 511 to move.

[0062] When the two first connecting pipes 41 are respectively located below the corresponding third connecting pipes 44, the first driving member 502 drives the fourth fixing member 504 to move upward. At this time, the quick-release female connector 42 is driven to move upward synchronously through the first connecting member 48 and the second connecting member 49 until the left rack abuts against the upper limit member.

[0063] When the left rack abuts against the upper limit stop, the quick-release male connector 45 on the third connecting pipe 44 extends into the quick-release female connector 42. At this time, the first driving member 502 continues to drive the fourth fixing member 504 to move upward. Due to the downward force exerted on the left rack by the upper limit stop, the gear 474 also rotates, causing the right rack to continue to move upward. In turn, the second connecting member 49 drives the locking sleeve of the quick-release female connector 42 to move upward, so that the quick-release female connector 42 and the quick-release male connector 45 of the third connecting pipe 44 are connected together, thereby connecting the first connecting pipe 41 to the corresponding injection mechanism 5.

[0064] like Figure 11 As shown, the infusion mechanism 5 may include a first housing, and a first pipe 52, a second pipe 53, a three-way valve 54, a second pump body 55, a third pump body 56, and a drug storage tank 57 disposed within the first housing. A third connecting pipe 44 extends into the first housing. The three-way valve 54 is connected to the first pipe 52, the second pipe 53, and the third connecting pipe 44, respectively. The second pump body 55 is connected to the first pipe 52 and extends out of the first housing via a pipe, connecting to external equipment such as an air compressor. The second pump body 55 is used to inject high-pressure air into the sampling tube 3 to dislodge the sealing member 31 from the first end of the sampling tube 3, thereby opening the second end of the sampling tube 3. The third pump body 56 is connected to the second pipe 53 and the drug storage tank 57, respectively, and is used to inject the drug in the drug storage tank 57 into the sleeve body 11 through the sampling tube 3 to treat liquid contaminants. The drug in the drug storage tank 57 can be adjusted according to the results detected by the detection mechanism 6. Specifically, after the testing agency 6 completes the testing, the operator loads the corresponding treatment drug into the drug storage tank 57, and uses the third pump body 56 to inject the drug into the sleeve body 11, and injects it into the borehole through the clearance gap 14.

[0065] like Figure 12 As shown, the detection mechanism 6 may include a second housing, and a sample storage unit 61 and a detection unit 62 disposed within the second housing. A second connecting pipe 43 extends into the second housing and connects to the sample storage unit 61. The sample storage unit 61 may be a sample storage tank or similar structure. The detection unit 62 is disposed on the sample storage unit 61. The detection unit 62 may be an electrochemical sensor, an optical sensor, or similar structure. When it is an electrochemical sensor, it detects the concentration of pollutants such as lead, cadmium, mercury, arsenic, copper, and zinc in a liquid by measuring changes in electrical signals (such as current and potential). When it is an optical sensor, it detects pollutants by utilizing their absorption, emission, or scattering characteristics of light. For example, when the optical sensor is a fluorescence sensor, it detects fuel oil, lubricating oil, etc., in a liquid. Of course, the detection unit 62 can also be other types of detection elements; this embodiment does not limit this.

[0066] On the other hand, a method for detecting water pollution in geological environmental surveys is also provided, including the aforementioned device for detecting water pollution in geological environmental surveys, and further including the following steps: Installation steps: Connect the fixed sleeve units 1 together and put them into the borehole; when putting them in, start the suction mechanism 8 simultaneously to drain the liquid in the borehole; after putting them in, pull the connecting rod 22 upward so that the first elastic element 13 opens the clearance gap 14 and the first elastic element 13 abuts against the borehole wall, and use the fixing component 25 to fix the connecting rod 22 to the bottom surface.

[0067] In this step, the number of fixed sleeve units 1 is first selected according to the sampling depth, and the sleeve bodies 11 are connected together in sequence. The fixing base 21, connecting rod 22, and abutment 24 of the fixing mechanism 2 are assembled together, and the sampling tube 3 and suction tube 7 are placed on the corresponding fixing base 21. The assembled structure is then placed into the sleeve body 11, and the entire structure is threadedly connected to the sleeve body 11 through the fixing base 21 to form a detection structure.

[0068] The probe is then inserted into the borehole. During insertion, the suction mechanism 8 is activated simultaneously to drain the liquid from the borehole. Once in the designated position, the connecting rod 22 is pulled upwards, causing the first elastic element 13 to open the clearance gap 14 and abut against the borehole wall. The connecting rod 22 is then fixed to the bottom surface using the fixing assembly 25.

[0069] Steps for removing the closure 31: First, use the adapter 4 to connect the first end of the sampling tube 3 to the injection mechanism 5, and then use the injection mechanism 5 to remove the closure 31 set on the second end of the sampling tube 3.

[0070] Testing steps: Use the adapter 4 to connect the first end of the sampling tube 3 to the testing mechanism 6 to complete the sampling and testing.

[0071] In this step, the first driving member 502 first drives the fourth fixing member 504 to move downward. The fourth fixing member 504 drives the left rack and right rack to move downward synchronously through the gear 474. At this time, the quick-release female connector 42 on the first connecting pipe 41 and the quick-release male connector 45 on the third connecting pipe 44 move downward synchronously, and the second elastic member 462 of the reset component 46 is stretched here.

[0072] When the left rack moves to abut against the lower limit member, the first driving member 502 continues to drive the fourth fixing member 504 downward. The left rack is subjected to an upward force exerted by the lower limit member, causing the gear 474 to rotate, thereby causing the right rack to continue moving downward. This, in turn, uses the second connecting member 49 to drive the locking sleeve of the quick-release female connector 42 downward until the quick-release male connector 45 disengages from the quick-release female connector 42. After the quick-release male connector 45 disengages from the quick-release female connector 42, the quick-release male connector 45 (third connecting tube 44) returns to its initial position under the elastic force of the second elastic member 462. After the left rack abuts against the lower limit member, the first driving member 502 continues to drive the fourth fixing member 504 downward, at which point the left rack remains in contact with the lower limit member.

[0073] Then the second drive component 513 drives the fourth mounting plate 511 to move to the right, that is, drives the first drive component 50 and the reversing component 47, the first connector 48, the second connector 49 and other components set on the first drive component 50 to move to the left, until the two first connecting pipes 41 are respectively located below the corresponding second connecting pipes 43.

[0074] When the two first connecting pipes 41 are respectively located below the corresponding second connecting pipes 43, the first driving member 502 drives the fourth fixing member 504 to move upward. At this time, the quick-release female connector 42 is driven to move upward synchronously through the first connecting member 48 and the second connecting member 49 until the left rack abuts against the upper limit member.

[0075] When the left rack abuts against the upper limit stop, the quick-release male connector 45 on the second connecting pipe 43 extends into the quick-release female connector 42. At this time, the first driving member 502 continues to drive the fourth fixing member 504 to move upward. Due to the downward force exerted on the left rack by the upper limit stop, the gear 474 also rotates, causing the right rack to continue moving upward. This, in turn, uses the second connecting member 49 to drive the locking sleeve of the quick-release female connector 42 to move upward, connecting the quick-release female connector 42 with the quick-release male connector 45 of the second connecting pipe 43. This connects the first connecting pipe 41 to the corresponding detection mechanism 6. Then, the detection mechanism 6 is used to complete sampling and detection.

[0076] In summary, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0077] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A device for detecting water pollution in geological environmental surveys, characterized in that, include: N fixed sleeve units, fixing mechanisms, N sampling tubes, transfer mechanisms, N injection mechanisms, N detection mechanisms, suction tubes, and suction mechanisms, where N is greater than 1; N fixed sleeve units are detachably connected to form a probe extending into a borehole; each fixed sleeve unit includes: a sleeve body, a plurality of first fixing members and a first elastic member; the sleeve body has a plurality of first slots spaced apart on its circumferential wall and extending axially therefrom; each first fixing member is correspondingly disposed at a first slot, the first end of the first fixing member is connected to the sleeve body, the second end extends downward and forms a clearance gap between the first fixing member and the sleeve body to allow liquid to flow into the sleeve body; the first elastic member is sleeved on the outer periphery of the sleeve body and all the first fixing members to close the clearance gap. The fixing mechanism includes: N fixing seats, N connecting rods, multiple second fixing members, N abutment members, and a fixing assembly; each fixing seat is correspondingly disposed within a sleeve body and rotatably connected to the inner wall of the sleeve body; each fixing seat has a first through hole, a second through hole, and at least one third through hole; the first end of each second fixing member is connected to the bottom of a fixing seat, and the second end extends downward, with its position corresponding to the first fixing member; each abutment member is connected to the bottom end of a connecting rod for abutting against the inner side of the second fixing member; the top end of the connecting rod passes through the first through hole and is detachably connected to the bottom end of an adjacent abutment member, with the top end of the uppermost connecting rod extending out of the drill hole; the fixing assembly is disposed on the ground for fixing the top end of the connecting rod extending from the drill hole; by driving the connecting rod upward, the second fixing member drives the first fixing member to rotate relative to the sleeve body, thereby causing the first elastic member to abut against the hole wall and open a clearance gap; The sampling tube is inserted through the third through hole, with its first end extending out of the drill hole. A second end of the sampling tube is provided between every two fixed seats, and a second end of the sampling tube is provided at the lower end of the lowest fixed seat. Each sampling tube has a detachable closure at its second end. The suction tube passes through the second through hole, with its first end extending out of the drill hole and connected to the suction mechanism, and its second end located at the lower end of the lowest fixed seat. The adapter mechanism is located on the ground and is used to selectively connect the first end of the sampling tube to the injection mechanism or the detection mechanism. When the first end of the sampling tube is connected to the injection mechanism, the injection mechanism is used to inject high-pressure gas into the sampling tube to flush the sealing member from the first end of the sampling tube. When the first end of the sampling tube is connected to the detection mechanism, the detection mechanism is used to remove the liquid from the borehole.

2. The geological environment survey water pollution detection device according to claim 1, characterized in that: The fixing assembly includes a fixing plate and a third fixing member. The fixing plate is used to abut against the ground and has a clearance hole for the connecting rod to pass through. The third fixing member is detachably connected to one end of the connecting rod that extends out of the drill hole and abuts against the upper side of the fixing plate.

3. The geological environment survey water pollution detection device according to claim 1, characterized in that: The suction mechanism includes a first pump body, which is used to extract liquid through a suction tube.

4. The geological environment survey water pollution detection device according to claim 1, characterized in that: The adapter mechanism includes N first connecting pipes, N quick-release female connectors, N second connecting pipes, N third connecting pipes, 2N quick-release male connectors, a reset assembly, a reversing assembly, a first connector, a second connector, a first drive assembly, and a second drive assembly. One end of each of the first connecting tubes is connected to the first end of a sampling tube, and the other end is provided with a quick-release female connector. One end of each of the second connecting tubes is connected to the detection mechanism, and the other end is connected to one of the quick-release male connectors; One end of each of the third connecting tubes is connected to the injection mechanism, and the other end is connected to the quick-release male connector, and the second connecting tubes are spaced apart from each other; Each of the reset components is connected to one of the quick-release male connectors; The reversing assembly is connected to the first driving assembly. The first end of the reversing assembly is connected to N first connecting pipes through the first connector, and the second end is connected to the locking sleeves on N quick-release female connectors through the second connector. The first driving assembly is used to drive the reversing assembly to move up and down so that the quick-release male connector and the quick-release female connector are disengaged or connected together. The first driving component is disposed on the second driving component, and the second driving component is used to drive the first driving component to move in a direction perpendicular to the axis of the sampling tube.

5. The geological environment survey water pollution detection device according to claim 4, characterized in that: The reversing assembly includes a first mounting plate, two first guide members, two oppositely arranged racks, gears, and two limiting members; Two first guide members are spaced apart on the first mounting plate, each rack is slidably connected to one of the first guide members, one rack is connected to a first connector, and the other rack is connected to a second connector; The gear is rotatably connected to the output end of the first drive assembly and meshes with the two racks respectively; the first drive assembly is used to drive the gear to move up and down; The two limiting members are spaced apart on the first mounting plate and correspond to the upper and lower limit positions of the rack connected to the first connecting member, respectively.

6. The geological environment survey water pollution detection device according to claim 5, characterized in that: The first drive assembly includes a second mounting plate, a first drive component, a second guide component, and a fourth fixing component; The first driving member and the second guide member are disposed on the second mounting plate; the fourth fixing member is connected to the output end of the first driving member and is slidably connected to the second guide member; The gear is rotatably connected to the fourth fixing member.

7. A geological environment survey water pollution detection device according to any one of claims 5 or 6, characterized in that: The reset assembly includes a third mounting plate and a second elastic element; The third mounting plate is provided with 2N clearance holes. Each second connecting pipe and each third connecting pipe is provided with one clearance hole. One end of the second elastic member abuts against the third mounting plate, and the other end abuts against the quick-release male connector. The second elastic member is sleeved on the corresponding second connecting pipe or third connecting pipe.

8. A geological environment survey water pollution detection device according to claim 6, characterized in that: The second drive assembly includes a fourth mounting plate, a fifth mounting plate, a second drive component, and a third guide component; The second driving member and the third guide member are disposed on the fourth mounting plate, and the fifth mounting plate is connected to the output end of the second driving member and slidably connected to the third guide member; The second mounting plate is disposed on the fifth mounting plate.

9. A device for detecting water pollution in geological environmental surveys according to claim 5, characterized in that: The detection mechanism includes a sample storage unit and a detection unit. The sample storage unit is connected to the second connecting tube, and the detection unit is disposed in the sample storage unit for detecting liquids. And / or, the infusion mechanism includes a first pipeline, a second pipeline, a three-way valve, a second pump body, a third pump body, and a drug storage tank; the three-way valve is connected to the first pipeline, the second pipeline, and the third connecting pipe respectively; the second pump body is connected to the first pipeline, and the second pump body is used to inject air into the sampling tube to flush the sealing element from the first end of the sampling tube; The third pump body is connected to the second pipeline and the drug storage tank respectively, and is used to inject the drug in the drug storage tank into the sleeve body through the sampling tube.

10. A method for detecting water pollution in geological environmental surveys, characterized in that, The geological environment survey water pollution detection device as described in any one of claims 1-9 further includes the following steps: Installation steps: Connect the fixed sleeve units together and insert them into the borehole; while inserting, simultaneously start the suction mechanism to drain the liquid in the borehole; after insertion, pull the connecting rod upward to open the clearance gap of the first elastic element and make the first elastic element abut against the borehole wall, and use the fixing assembly to fix the connecting rod to the bottom surface. Seal removal procedure: First, use the adapter to connect the first end of the sampling tube to the injection mechanism, and then use the injection mechanism to remove the seal set on the second end of the sampling tube. Testing steps: Use an adapter to connect the first end of the sampling tube to the testing mechanism to complete the sampling and testing.

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