CN111307535A - Groundwater sampling device for sampling water body samples of different depths - Google Patents
Groundwater sampling device for sampling water body samples of different depths Download PDFInfo
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- CN111307535A CN111307535A CN202010277221.9A CN202010277221A CN111307535A CN 111307535 A CN111307535 A CN 111307535A CN 202010277221 A CN202010277221 A CN 202010277221A CN 111307535 A CN111307535 A CN 111307535A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000005070 sampling Methods 0.000 title claims abstract description 47
- 239000003673 groundwater Substances 0.000 title claims description 19
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 15
- 238000005553 drilling Methods 0.000 claims description 15
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims 6
- 241001330002 Bambuseae Species 0.000 claims 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 6
- 239000011425 bamboo Substances 0.000 claims 6
- 239000000956 alloy Substances 0.000 claims 1
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000003895 groundwater pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/16—Devices for withdrawing samples in the liquid or fluent state with provision for intake at several levels
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an underground water sampling device for sampling water samples at different depths, wherein a motor is fixedly arranged in a drill rod, the output end of the motor is fixedly connected with a rotary drill bit, the outer surfaces of the drill rod and the rotary drill bit are fixedly provided with spiral teeth, a sampling mechanism is fixedly arranged in the drill rod, an extension component is fixedly arranged at the top of the drill rod, the outer surface of the extension component is sleeved with a fixing device, when sampling is carried out at a deeper ground surface, a connecting rod is respectively arranged between an upper drill cylinder and a lower drill cylinder through the combination of a compression spring on the outer surface of the connecting rod and a clamping block, the clamping block is clamped in a positioning hole by utilizing the flexibility of the spring to carry out the length continuation of the drill cylinders, so that the underground water sampling device is suitable for different depths, the underground water at the deeper ground surface can be conveniently sampled and detected, and the drill cylinders, convenient to store and carry.
Description
Technical Field
The invention relates to the technical field of underground water sampling, in particular to an underground water sampling device for sampling water samples at different depths.
Background
Along with the exposure of various groundwater pollution problems, the research on groundwater quality is more and more extensive and deeper, the groundwater is firstly researched to obtain the groundwater, one way of obtaining the water sample is to collect the water sample through specific equipment, the normalization and the accuracy of water sample collection directly influence the accuracy of subsequent groundwater detection, but sometimes due to the limitation of various external conditions, particularly in the sampling process, the influence of the depth of groundwater is large, the collection difficulty is large, and the integrity of sampling is not easy to control.
At the in-process of sampling, when the subsurface is darker, equipment can't reach appointed degree of depth and sample, complex operation to the fixed effect of equipment is not enough during the sample, causes the influence to the sample accuracy easily, studies the improvement to current structure and disappearance, provides the groundwater sampling device who takes a sample to the water sample of the different degree of depth, in order to reach the purpose that more practical value nature had more.
Disclosure of Invention
The present invention is directed to solving the above-mentioned problems of the prior art, and provides a groundwater sampling device for sampling water samples at different depths.
A groundwater sampling device for sampling water body samples of different depths comprises a rotary drill bit, a drill rod, spiral teeth and a motor, wherein the motor is fixedly installed inside the drill rod, the output end of the motor is fixedly connected with the rotary drill bit, the spiral teeth are fixedly installed on the outer surfaces of the drill rod and the rotary drill bit, a sampling mechanism is fixedly installed inside the drill rod, an extension assembly is fixedly installed at the top of the drill rod, and a fixing device is sleeved on the outer surface of the extension assembly;
the extension assembly comprises an upper drill barrel, a lower drill barrel, a connecting rod, a clamping groove, a compression spring, a clamping block and a positioning hole, the top of the drill rod is fixedly provided with the lower drill barrel, the lower drill barrel is connected with the upper drill barrel through the connecting rod arranged on the lower drill barrel, the inner walls of the upper drill barrel and the lower drill barrel are provided with the positioning hole, the clamping block is clamped inside the positioning hole, the compression spring is fixedly arranged on the back of the clamping block, the compression spring is fixedly arranged inside the clamping groove, and the clamping groove is formed in the outer surface of the top and the outer surface of the bottom of the connecting rod;
furthermore, the size of the upper drill cylinder is matched with that of the lower drill cylinder, the upper drill cylinder and the lower drill cylinder are arranged in parallel up and down, the clamping block is of a cuboid structure, the clamping block and the compression spring are of an integrated forming structure, and the positioning holes are formed in the inner walls of the upper drill cylinder and the lower drill cylinder at equal intervals;
furthermore, the fixing device comprises a fixing table, insertion rods, through holes, a baffle, fastening nuts, a screw rod and clamping jaws, the insertion rods are fixedly mounted on the lower surfaces of four corners of the fixing table, the through holes are formed in the center of the inner portion of the fixing table, the baffle corresponding to the through holes is fixedly connected to the upper portion of the fixing table, the screw rod penetrates through the baffle, the clamping jaws are fixedly mounted at the inner ends of the screw rod, and the fastening nuts are connected to the outer surfaces of the screw rod through threads on the outer sides of the baffle;
furthermore, the baffle is of a circular ring structure, the radius of the baffle is equal to that of the through hole, the screw rod penetrates through the baffle at equal distance, and the clamping jaws are made of aluminum alloy components;
furthermore, the sampling mechanism comprises a water inlet hole, a filter screen, a water storage cavity, a water outlet valve and a flow baffle plate, the water storage cavity is formed in the drill rod, the water outlet valve is fixedly mounted on the surface of the outer side of the water storage cavity, the water inlet hole is formed in the outer surface of the drill rod, the filter screen is embedded in the water inlet hole, and the flow baffle plate corresponding to the filter screen is mounted in the water storage cavity;
furthermore, the spoiler rotates and installs in the inside of drilling rod, inlet opening and filter screen formula integrated into one piece structure, and the equal symmetry of inlet opening and filter screen is installed at the inner wall of drilling rod.
The invention has the beneficial effects that:
1. according to the underground water sampling device, the motor drives the rotary drill bit to move downwards continuously, the drill rod enters underground along with the drill bit, when the specified depth needs to be sampled, underground water enters the water storage cavity through the water inlet hole in the surface of the drill rod, the flow blocking plate movably arranged in the water storage cavity and the filter screen embedded in the water inlet hole further prevent soil, sand and stones and the like from being blocked, and convenience in underground water sampling detection is improved.
2. According to the invention, through the adopted extension assembly, when the earth surface is deeply sampled, the connection rod is respectively arranged between the upper drill cylinder and the lower drill cylinder by utilizing the combination of the compression spring on the outer surface of the connection rod and the clamping block, the clamping block is clamped inside the positioning hole by utilizing the flexibility of the spring, the length of the drill cylinder is continuously connected, the extension assembly is suitable for different depths, the sampling detection of underground water deeper below the earth surface is convenient, and meanwhile, the drill cylinder is rapidly disassembled without using, and the storage and the transportation are convenient.
3. According to the invention, through the installed fixing device, before sampling, the insertion rods at four corners of the fixing table are inserted into the ground, the whole body penetrates through the through hole and is sleeved in the clamping jaw in the baffle at the upper part of the through hole, meanwhile, the clamping jaw and the baffle penetrate through the lead screw, the clamping jaw is tightly attached to the equipment and then fastened through the fastening nut at the other end, the equipment can be conveniently and quickly fixed on the ground for sampling along an appointed route, the deviation is prevented, and the accuracy of a sampling result is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view of a lower structure of the present invention;
FIG. 3 is a perspective view of the related structure of the extension assembly of the present invention;
FIG. 4 is a cross-sectional view of an extension assembly of the present invention;
fig. 5 is a perspective view of the related structure of the fixing device of the present invention.
In the figure: 1. rotating the drill bit; 2. a drill stem; 3. helical teeth; 4. a motor; 5. a fixing device; 6. an extension assembly; 7. a sampling mechanism; 8. a water inlet hole; 9. a filter screen; 10. a water storage cavity; 11. a water outlet valve; 12. a spoiler; 13. a fixed table; 14. a plug rod; 15. a through hole; 16. a baffle plate; 17. fastening a nut; 18. a screw rod; 19. a claw; 20. drilling a barrel; 21. a drill cylinder is lowered; 22. a connecting rod; 23. a card slot; 24. a compression spring; 25. a clamping block; 26. and (7) positioning the holes.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in figures 1 to 5: a groundwater sampling device for sampling water body samples of different depths comprises a rotary drill bit 1, a drill rod 2, spiral teeth 3 and a motor 4, wherein the motor 4 is fixedly installed inside the drill rod 2, the model of the motor 4 is Y80M1-2, a control switch is installed on the outer surface of the drill rod 2, a controller for controlling the motor 4 is installed inside the control switch, the model of the controller is DP-TMA-4B, the input end of the controller is connected with an external power supply, the output end of the controller is connected with the input end of the motor 4, the rotary drill bit 1 is fixedly connected with the output end of the motor 4, the spiral teeth 3 are fixedly installed on the outer surfaces of the drill rod 2 and the rotary drill bit 1, an extension assembly 6 is fixedly installed at the top of the drill rod 2, the extension assembly 6 comprises an upper drill cylinder 20, a lower drill cylinder 21, a connecting rod 22, a clamping groove 23, a, the top of the drill rod 2 is fixedly provided with a lower drill cylinder 21, the lower drill cylinder 21 is connected with an upper drill cylinder 20 through a connecting rod 22 arranged on the lower drill cylinder, the size of the upper drill cylinder 20 is matched with that of the lower drill cylinder 21, the upper drill barrel 20 and the lower drill barrel 21 are arranged in an up-down parallel mode, positioning holes 26 are formed in the inner walls of the upper drill barrel 20 and the lower drill barrel 21, the positioning holes 26 are formed in the inner walls of the upper drill barrel 20 and the lower drill barrel 21 at equal intervals, a clamping block 25 is clamped inside the positioning holes 26, a compression spring 24 is fixedly mounted on the back face of the clamping block 25, the compression spring 24 is fixedly mounted inside a clamping groove 23, the clamping groove 23 is formed in the outer surface of the top portion and the outer surface of the bottom portion of the connecting rod 22, the clamping block 25 is of a cuboid structure, the clamping block 25 and the compression spring 24 are of an integrated forming structure, the drill barrel is connected continuously in length by means of mutual combination of the clamping block 25 and the positioning holes 26.
Wherein, the outer surface of the extension component 6 is sleeved with a fixing device 5, the fixing device 5 comprises a fixing table 13, an inserting rod 14, a through hole 15, a baffle 16, a fastening nut 17, a screw rod 18 and a clamping jaw 19, the inserting rods 14 are fixedly arranged on the lower surfaces of four corners of the fixing table 13, a through hole 15 is arranged at the center of the inner part of the fixed platform 13, a baffle 16 corresponding to the through hole 15 is fixedly connected at the upper part of the fixed platform 13, a screw rod 18 penetrates through the inner part of the baffle 16, a clamping jaw 19 is fixedly arranged at the inner end of the screw rod 18, and the outer surface of the screw rod 18 is connected with a fastening nut 17 at the outer side of the baffle 16 through threads, the baffle 16 is in a circular structure, and the radius of baffle 16 equals with the radius of through-hole 15, and the equidistance of lead screw 18 runs through the inside of baffle 16, and jack catch 19's material is the aluminum alloy component, conveniently fixes whole, can be quick carry out sample work.
Wherein, the inside fixed mounting of drilling rod 2 has sampling mechanism 7, sampling mechanism 7 includes inlet opening 8, filter screen 9, water storage chamber 10, outlet valve 11 and spoiler 12, water storage chamber 10 has been seted up to the inside of drilling rod 2, the outside fixed surface of water storage chamber 10 installs outlet valve 11, and the surface of drilling rod 2 has seted up inlet opening 8, filter screen 9 is installed in the inside embedding of inlet opening 8, the internally mounted of water storage chamber 10 has spoiler 12 corresponding with filter screen 9, spoiler 12 rotates the inside of installing at drilling rod 2, inlet opening 8 and filter screen 9 be the integrated into one piece structure, and the inner wall at drilling rod 2 is installed to inlet opening 8 and the equal symmetry of filter screen 9, utilize filter screen 9 to prevent that earth gravel and sand from getting into equipment and causing the jam, influence sampling structure's accuracy nature.
The specific use mode and function of the embodiment are as follows:
in the invention, before using the device, the length is adjusted according to the actual depth of the earth surface, the connecting rod 22 is respectively arranged between the upper drill cylinder 20 and the lower drill cylinder 21 by utilizing the combination of the compression spring 24 arranged in the clamping groove 23 on the outer surface of the connecting rod 22 and the clamping block 25, the clamping block 25 is clamped in the positioning hole 26 by utilizing the flexibility of the spring to continue the length of the drill cylinder to adapt to different depths, after the length of the drill cylinder is determined and arranged, the insertion rods 14 at the bottoms of four corners of the fixed platform 13 are inserted into the ground, the whole device passes through the through hole 15 and is sleeved in the clamping jaw 19 in the baffle 16 on the upper part of the through hole 15, meanwhile, the clamping jaw 19 and the baffle 16 penetrate through the screw rod 18, the clamping jaw 19 is tightly attached to the device and then is tightly screwed through the fastening screw cap 17 at the other end to be fastened, simultaneously, the motor 4 is opened, drilling rod 2 gets into the underground along with the drill bit is decurrent when, when needing to sample appointed degree of depth, groundwater gets into water storage chamber 10 through the inlet opening 8 on drilling rod 2 surface, and water storage chamber 10 inside movable mounting's spoiler 12 further prevents earth gravel and sand etc. from causing the jam with filter screen 9 of 8 inside embedding installations of inlet opening, and the back is accomplished in the sample, takes out drilling rod 2, opens outlet valve 11 and collects, to sum up, can conveniently fix this equipment fast subaerial and take a sample along appointed route, prevent to take place the skew, improve the accuracy of sample result, conveniently carry out the sample test to the groundwater that lies in the subsurface darker, dismantle the drill barrel fast not using simultaneously, conveniently accomodate the transport.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.
Claims (6)
1. The utility model provides a groundwater sampling device that takes a sample to the water sample of different degree of depth, includes rotary drill bit (1), drilling rod (2), helical tooth (3) and motor (4), its characterized in that: a motor (4) is fixedly installed inside the drill rod (2), the output end of the motor (4) is fixedly connected with a rotary drill bit (1), spiral teeth (3) are fixedly installed on the outer surfaces of the drill rod (2) and the rotary drill bit (1), a sampling mechanism (7) is fixedly installed inside the drill rod (2), an extension assembly (6) is fixedly installed at the top of the drill rod (2), and a fixing device (5) is sleeved on the outer surface of the extension assembly (6);
extension subassembly (6) are including last drill barrel (20), drill barrel (21) down, connecting rod (22), draw-in groove (23), compression spring (24), joint piece (25) and locating hole (26), the top fixed mounting of drilling rod (2) has drill barrel (21) down, drill barrel (21) down is connected with last drill barrel (20) through connecting rod (22) that sets up on it, locating hole (26) have all been seted up to the inner wall of going up drill barrel (20) and drill barrel (21) down, the inside joint of locating hole (26) has joint piece (25), the back fixed mounting of joint piece (25) has compression spring (24), compression spring (24) fixed mounting is in the inside of draw-in groove (23), the top surface and the bottom surface of connecting rod (22) are all seted up in draw-in groove (23).
2. A groundwater sampling device as claimed in claim 1, wherein the sampling depth is different from the depth of the water sample: go up the size of boring a section of thick bamboo (20) and the size phase-match of boring a section of thick bamboo (21) down, and go up boring a section of thick bamboo (20) and boring a section of thick bamboo (21) down and be parallel mount from top to bottom, joint piece (25) are the cuboid structure, joint piece (25) and compression spring (24) be integrated into one piece structure, the inner wall of boring a section of thick bamboo (20) and boring a section of thick bamboo (21) down at last is seted up to locating hole (26) equidistance.
3. A groundwater sampling device as claimed in claim 1, wherein the sampling depth is different from the depth of the water sample: fixing device (5) are including fixed station (13), spliced pole (14), through-hole (15), baffle (16), fastening nut (17), lead screw (18) and jack catch (19), the equal fixed mounting of four corners lower surface of fixed station (13) has spliced pole (14), and the inside center department of fixed station (13) has seted up through-hole (15), baffle (16) that the upper portion fixedly connected with of fixed station (13) corresponds with through-hole (15), the inside of baffle (16) has run through lead screw (18), the inner fixed mounting of lead screw (18) has jack catch (19), and there is fastening nut (17) through threaded connection in the outside of baffle (16) the surface of lead screw (18).
4. A groundwater sampling device as claimed in claim 3, wherein the sampling depth is different from the depth of the water sample: baffle (16) are the ring shape structure, and the radius of baffle (16) and the radius of through-hole (15) equal, the equal distance of lead screw (18) runs through the inside of baffle (16), the material of jack catch (19) is the aluminum alloy material component.
5. A groundwater sampling device as claimed in claim 1, wherein the sampling depth is different from the depth of the water sample: sampling mechanism (7) include inlet opening (8), filter screen (9), water storage chamber (10), outlet valve (11) and spoiler (12), water storage chamber (10) have been seted up to the inside of drilling rod (2), the outside fixed surface in water storage chamber (10) installs outlet valve (11), and the surface of drilling rod (2) has seted up inlet opening (8), filter screen (9) are installed in the inside embedding of inlet opening (8), the internally mounted of water storage chamber (10) has spoiler (12) corresponding with filter screen (9).
6. A groundwater sampling device as claimed in claim 5, wherein the sampling depth is different from the depth of the water sample: the spoiler (12) rotates and is installed in the drill rod (2), the water inlet hole (8) and the filter screen (9) are of an integrated forming structure, and the water inlet hole (8) and the filter screen (9) are symmetrically installed on the inner wall of the drill rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010277221.9A CN111307535B (en) | 2020-04-10 | 2020-04-10 | Groundwater sampling device for sampling water body samples of different depths |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010277221.9A CN111307535B (en) | 2020-04-10 | 2020-04-10 | Groundwater sampling device for sampling water body samples of different depths |
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| Publication Number | Publication Date |
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| CN111307535A true CN111307535A (en) | 2020-06-19 |
| CN111307535B CN111307535B (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010277221.9A Expired - Fee Related CN111307535B (en) | 2020-04-10 | 2020-04-10 | Groundwater sampling device for sampling water body samples of different depths |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781754A (en) * | 2021-01-28 | 2021-05-11 | 江西悦丰农业科技有限公司 | Inside temperature measuring device is piled to millet |
| CN114018631A (en) * | 2021-11-14 | 2022-02-08 | 河北省建筑科学研究院有限公司 | Core drilling machine for wood structure in historic building wall and sampling method |
| CN115060864A (en) * | 2022-06-17 | 2022-09-16 | 孙欣阳 | Ecological environment underground water monitoring and sampling device and sampling method thereof |
| CN115628052A (en) * | 2022-10-10 | 2023-01-20 | 浙江省浙南综合工程勘察测绘院有限公司 | Drilling depthkeeping water intaking ware for geotechnical engineering reconnaissance |
| CN117309465A (en) * | 2023-10-08 | 2023-12-29 | 廊坊市诚信地质服务有限公司 | Deep geological sample sampling device and sampling method |
| CN117606851A (en) * | 2024-01-23 | 2024-02-27 | 云南阿姆德电气工程有限公司 | Mineral layering ore belt sampling detection device and application method thereof |
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| US6276220B1 (en) * | 1998-07-10 | 2001-08-21 | Bradley P Varhol | Multipurpose groundwater sampler |
| JP2005171487A (en) * | 2003-12-08 | 2005-06-30 | Yasutaka Fuse | Underground water collecting apparatus |
| CN107588986A (en) * | 2017-10-15 | 2018-01-16 | 河南宏达检测技术有限公司 | A kind of body of groundwater environment measuring sampling of water quality equipment |
| CN207923527U (en) * | 2018-03-27 | 2018-09-28 | 辛博 | A kind of hydrogeology underground water sampler |
| CN109342117A (en) * | 2018-11-15 | 2019-02-15 | 广东精科环境科技有限公司 | A kind of underground water sample detection integrated equipment and its application method |
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2020
- 2020-04-10 CN CN202010277221.9A patent/CN111307535B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6276220B1 (en) * | 1998-07-10 | 2001-08-21 | Bradley P Varhol | Multipurpose groundwater sampler |
| JP2005171487A (en) * | 2003-12-08 | 2005-06-30 | Yasutaka Fuse | Underground water collecting apparatus |
| CN107588986A (en) * | 2017-10-15 | 2018-01-16 | 河南宏达检测技术有限公司 | A kind of body of groundwater environment measuring sampling of water quality equipment |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781754A (en) * | 2021-01-28 | 2021-05-11 | 江西悦丰农业科技有限公司 | Inside temperature measuring device is piled to millet |
| CN112781754B (en) * | 2021-01-28 | 2023-11-10 | 山西汾都香农业开发股份有限公司 | Internal temperature measuring device for grain pile |
| CN114018631A (en) * | 2021-11-14 | 2022-02-08 | 河北省建筑科学研究院有限公司 | Core drilling machine for wood structure in historic building wall and sampling method |
| CN114018631B (en) * | 2021-11-14 | 2024-03-19 | 河北省建筑科学研究院有限公司 | Core drilling machine for wood structure in ancient building wall and sampling method |
| CN115060864A (en) * | 2022-06-17 | 2022-09-16 | 孙欣阳 | Ecological environment underground water monitoring and sampling device and sampling method thereof |
| CN115060864B (en) * | 2022-06-17 | 2023-10-13 | 孙欣阳 | Ecological environment groundwater monitoring and sampling device and sampling method thereof |
| CN115628052A (en) * | 2022-10-10 | 2023-01-20 | 浙江省浙南综合工程勘察测绘院有限公司 | Drilling depthkeeping water intaking ware for geotechnical engineering reconnaissance |
| CN117309465A (en) * | 2023-10-08 | 2023-12-29 | 廊坊市诚信地质服务有限公司 | Deep geological sample sampling device and sampling method |
| CN117309465B (en) * | 2023-10-08 | 2024-04-05 | 廊坊市诚信地质服务有限公司 | Deep geological sample sampling device and sampling method |
| CN117606851A (en) * | 2024-01-23 | 2024-02-27 | 云南阿姆德电气工程有限公司 | Mineral layering ore belt sampling detection device and application method thereof |
| CN117606851B (en) * | 2024-01-23 | 2024-03-26 | 云南阿姆德电气工程有限公司 | Mineral layering ore belt sampling detection device and application method thereof |
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| CN111307535B (en) | 2022-05-27 |
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