CN110685681A - Underground water pollutant monitoring system - Google Patents
Underground water pollutant monitoring system Download PDFInfo
- Publication number
- CN110685681A CN110685681A CN201910997844.0A CN201910997844A CN110685681A CN 110685681 A CN110685681 A CN 110685681A CN 201910997844 A CN201910997844 A CN 201910997844A CN 110685681 A CN110685681 A CN 110685681A
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- Prior art keywords
- rod
- drill rod
- drill
- outer sleeve
- rod outer
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 14
- 239000003403 water pollutant Substances 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 6
- 231100000719 pollutant Toxicity 0.000 claims abstract description 6
- 238000005553 drilling Methods 0.000 claims description 28
- 239000003673 groundwater Substances 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 239000000356 contaminant Substances 0.000 claims 6
- 239000002689 soil Substances 0.000 abstract description 19
- 239000004576 sand Substances 0.000 description 6
- 235000013339 cereals Nutrition 0.000 description 4
- 239000000575 pesticide Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000009189 diving Effects 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 206010016807 Fluid retention Diseases 0.000 description 1
- 239000005442 atmospheric precipitation Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/086—Withdrawing samples at the surface
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Health & Medical Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Medicinal Chemistry (AREA)
- Pathology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- Sampling And Sample Adjustment (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a system for monitoring pollutants in underground water, which comprises a drill rod outer sleeve, a drill rod inner rod, a locking spin cap, an insert inner core and a drill rod outer sleeve insert, wherein a water inlet groove is formed in one side surface of the drill rod outer sleeve and communicated with the inside of the drill rod outer sleeve, the drill rod inner rod is inserted in the drill rod outer sleeve, the locking spin cap is sleeved on the upper surface of the drill rod inner rod and is in threaded fit connection with the drill rod outer sleeve, the drill rod inner rod is composed of a lower rod and an upper rod, the upper rod is positioned at the top of the lower rod and is coaxially arranged with the lower rod, the upper rod and the lower rod are in an integrated structure, a limiting convex strip is arranged on one side surface of the lower rod, and the limiting convex strip and the lower rod are in an integrated structure, so that a detector can conveniently sample underground water, meanwhile, when not in use, the components deeply buried in the soil can be quickly taken out.
Description
Technical Field
The invention relates to the technical field of water quality detection devices, in particular to a system for monitoring pollutants in underground water.
Background
According to different underground burying conditions, underground water can be divided into three categories of upper layer stagnant water, diving water and confined water. The water retention of the upper layer is a water storage body formed by the fact that the downward-seeping atmospheric precipitation stays in shallow rock cracks or sedimentary layers due to the local water-resisting effect. Diving is groundwater buried on the first stable water barrier below the surface of the earth, and it is most often seen that groundwater is diving. A spring is formed when groundwater flows out of the ground. The confined water (artesian water) is underground water buried deeply and existing between two water-resisting layers. Such underground water often has a large water pressure, and particularly when the upper and lower water-resisting layers are inclined, the water in the water-resisting layers is subjected to the large water pressure. When the well or the drill hole penetrates through the upper roof, the strong pressure can cause the water body to gush out, and the artesian water is formed.
With the development of agricultural modernization, the use of a large amount of fertilizer and pesticide has become the most important factor of soil environmental pollution. Wherein pesticide residues have a severe impact on the water environment. Researches show that the dosage of the water-soluble pesticide accounts for more than 50 percent of the total dosage of the pesticide, and the water-soluble pesticide is mostly dissolved in water in a rice field after being applied to the rice field, so that water environment is easily polluted by surface runoff and soil leakage. Because the groundwater is located in the deep soil, the difficulty in groundwater quality detection mainly lies in sampling of the groundwater.
Disclosure of Invention
The invention aims to provide a system for monitoring pollutants in underground water, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a pollutant monitoring system in groundwater, includes that pole, locking are revolved cap, inserts inner core and drilling rod outer tube inserts in drilling rod outer tube, drilling rod, the intake chamber has been seted up to a side surface of drilling rod outer tube, and the intake chamber is linked together with the inside of drilling rod outer tube, peg graft in the inside of drilling rod outer tube in the drilling rod, the locking is revolved the cap suit and is connected on the upper portion of pole in the drilling rod on the surface, and the locking is revolved the cap and is passed through screw-thread fit with the drilling rod outer tube and be connected, pole comprises lower arm and upper arm two parts in the drilling rod, the upper arm is located the top of lower arm and both are the coaxial line setting, upper arm and lower arm formula structure as an organic whole, one side of lower arm is provided with the restriction.
Preferably, drilling rod outer tube inserts and intake antrum clearance fit, the front and the back of drilling rod outer tube inserts all set up to hollow out construction, the mounting groove has been seted up to the central point of drilling rod outer tube inserts.
Preferably, the insert inner core is installed in the installation groove, and the insert inner core is of a flocculent structure.
Preferably, the upper surface of the upper rod is provided with a connecting thread matched with a drilling machine, and the upper surface inside the outer sleeve of the drill rod is provided with an internal thread.
Preferably, a limiting ring is arranged on the lower surface of the upper rod, and the limiting ring and the upper rod are of an integrated structure.
Preferably, the bottom of the drill rod outer sleeve is provided with a drill bit, and the drill bit and the drill rod outer sleeve are of an integrated structure
Preferably, the limiting convex strip is in clearance fit with the water inlet groove, and the drill rod inner rod is in clearance fit with the drill rod outer sleeve.
Compared with the prior art, the invention has the beneficial effects that:
1. the underground water sampling device is reasonable and effective in structure, facilitates detection personnel to sample underground water, and can quickly take out components deeply buried in soil when not in use;
2. when the outer drill pipe sleeve enters soil, the inner drill pipe rod is used for supporting the outer drill pipe sleeve, so that the outer drill pipe sleeve can be effectively prevented from bending and deforming, and meanwhile, the limiting convex strip on the inner drill pipe rod blocks the water inlet groove, so that soil is prevented from entering the inner drill pipe sleeve through the water inlet groove;
3. when water passes through the water inlet tank, sand in the water can be intercepted by the insert inner core, and the sand is prevented from entering the inner part of the outer sleeve of the drill rod.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall internal structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A of the present invention;
FIG. 3 is an overall cross-sectional structural view of the present invention;
FIG. 4 is a schematic view of the construction of the drill pipe outer sleeve insert of the present invention;
fig. 5 is an overall external structural view of the present invention.
In the figure: 1. a drill rod outer sleeve; 2. a water inlet groove; 3. an inner rod of the drill rod; 4. limiting the convex strips; 5. a locking screw cap; 6. an internal thread; 7. a lower rod; 8. a confinement ring; 9. a rod is arranged; 10. connecting threads; 11. an insert core; 12. drill pipe outer casing inserts; 13. and (4) mounting the groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, 2 and 5, in an embodiment of the present invention, a system for monitoring pollutants in underground water includes a drill rod outer casing 1, a drill rod inner rod 3, a locking cap 5, an insert core 11 and a drill rod outer casing insert 12, a water inlet channel 2 is formed on a side surface of the drill rod outer casing 1, the water inlet channel 2 is communicated with the inside of the drill rod outer casing 1, the drill rod inner rod 3 is inserted into the drill rod outer casing 1, the locking cap 5 is sleeved on an upper surface of the drill rod inner rod 3, the locking cap 5 is connected with the drill rod outer casing 1 through a threaded fit, the drill rod inner rod 3 is composed of a lower rod 7 and an upper rod 9, the upper rod 9 is located at the top of the lower rod 7 and coaxially arranged with the lower rod 7, the upper rod 9 and the lower rod 7 are of an integrated structure, a limiting protrusion 4 is arranged on a side surface of the lower rod 7, the limiting protrusion 4, the limiting convex strip 4 is in clearance fit with the water inlet groove 2.
Referring to fig. 1, 2 and 3, the drill rod outer sleeve insert 12 is in clearance fit with the water inlet groove 2, the front and back of the drill rod outer sleeve insert 12 are both hollow structures, and the center of the drill rod outer sleeve insert 12 is provided with an installation groove 13.
Referring to fig. 3 and 4, the insert core 11 is installed inside the installation groove 13, and the insert core 11 has a flocculent structure.
Referring to fig. 1 and 2, the upper surface of the upper rod 9 is provided with a connecting thread 10 for cooperating with a drilling machine, and the upper surface of the inner part of the outer sleeve 1 of the drill rod is provided with an internal thread 6.
Referring to fig. 2, the lower surface of the upper rod 9 is provided with a limit ring 8, and the limit ring 8 and the upper rod 9 are of an integrated structure.
Referring to fig. 1, a drill bit is disposed at the bottom of the drill rod outer casing 1, and the drill bit and the drill rod outer casing 1 are integrated.
Referring to fig. 1-5, the limiting convex strip 4 is in clearance fit with the water inlet groove 2, and the drill rod inner rod 3 is in clearance fit with the drill rod outer sleeve 1; the invention firstly assembles each part to form a drill rod (shown in figure 1), then the drill rod is arranged on a drilling machine, the drill rod is vertically driven into the soil by the drilling machine, meanwhile, the drill rod with the length of 5cm protruding out of the ground is reserved, then the drill rod is separated from the drilling machine, then a locking screw cap 5 is screwed to separate the locking screw cap 5 from a drill rod outer sleeve 1, then a drill rod inner rod 3 inserted in the drill rod outer sleeve 1 is drawn out, then an insert inner core 11 and a drill rod outer sleeve insert 12 are assembled together (shown in figure 4), then the assembled drill rod outer sleeve insert 12 is inserted into a water inlet groove 2, finally a sealing cover is fixed at the top end of the drill rod outer sleeve 1, when the drill rod outer sleeve 1 enters the soil, the drill rod inner rod 3 is used for supporting the drill rod outer sleeve 1, thereby effectively preventing the drill rod outer sleeve 1 from bending, meanwhile, the limiting convex strip 4 on the inner rod 3 of the drill rod blocks the water inlet groove 2 to prevent soil from passing through the water inlet groove 2 to enter the inner part of the outer sleeve 1 of the drill rod, when in work, water in soil can enter the inner part of the outer sleeve 1 of the drill rod through the water inlet groove 2, when a sample needs to be taken, water stored in the inner part of the outer sleeve 1 of the drill rod can be pumped out only by using a water pump and a water pipe, when the water passes through the water inlet groove 2, sand grains in the water can be intercepted by the insert inner core 11 to prevent the sand grains from entering the inner part of the outer sleeve 1 of the drill rod, when the outer sleeve 1 of the drill rod in the soil needs to be taken out, the insert 12 of the outer sleeve of the drill rod is firstly pumped out from the water inlet groove 2, then the inner rod 3 of the drill rod is inserted into the outer sleeve 1 of the drill rod, the drill pipe can be taken out of the soil.
The working principle and the using process of the invention are as follows: the invention firstly assembles each part to form a drill rod (shown in figure 1), then the drill rod is arranged on a drilling machine, the drill rod is vertically driven into the soil by the drilling machine, meanwhile, the drill rod with the length of 5cm protruding out of the ground is reserved, then the drill rod is separated from the drilling machine, then a locking screw cap 5 is screwed to separate the locking screw cap 5 from a drill rod outer sleeve 1, then a drill rod inner rod 3 inserted in the drill rod outer sleeve 1 is drawn out, then an insert inner core 11 and a drill rod outer sleeve insert 12 are assembled together (shown in figure 4), then the assembled drill rod outer sleeve insert 12 is inserted into a water inlet groove 2, finally a sealing cover is fixed at the top end of the drill rod outer sleeve 1, when the drill rod outer sleeve 1 enters the soil, the drill rod inner rod 3 is used for supporting the drill rod outer sleeve 1, thereby effectively preventing the drill rod outer sleeve 1 from bending, meanwhile, the limiting convex strip 4 on the inner rod 3 of the drill rod blocks the water inlet groove 2 to prevent soil from passing through the water inlet groove 2 to enter the inner part of the outer sleeve 1 of the drill rod, when in work, water in soil can enter the inner part of the outer sleeve 1 of the drill rod through the water inlet groove 2, when a sample needs to be taken, water stored in the inner part of the outer sleeve 1 of the drill rod can be pumped out only by using a water pump and a water pipe, when the water passes through the water inlet groove 2, sand grains in the water can be intercepted by the insert inner core 11 to prevent the sand grains from entering the inner part of the outer sleeve 1 of the drill rod, when the outer sleeve 1 of the drill rod in the soil needs to be taken out, the insert 12 of the outer sleeve of the drill rod is firstly pumped out from the water inlet groove 2, then the inner rod 3 of the drill rod is inserted into the outer sleeve 1 of the drill rod, the drill pipe can be taken out of the soil.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a pollutant monitoring system in groundwater, includes drilling rod outer tube (1), pole (3) in the drilling rod, locking spiral cap (5), inserts inner core (11) and drilling rod outer tube inserts (12), its characterized in that: the drill rod structure is characterized in that a water inlet groove (2) is formed in the surface of one side of the drill rod outer sleeve (1), the water inlet groove (2) is communicated with the inside of the drill rod outer sleeve (1), the drill rod inner rod (3) is inserted into the drill rod outer sleeve (1), the locking screwing cap (5) is sleeved on the surface of the upper portion of the drill rod inner rod (3), the locking screwing cap (5) is connected with the drill rod outer sleeve (1) in a threaded fit mode, the drill rod inner rod (3) is composed of a lower rod (7) and an upper rod (9) in two parts, the upper rod (9) is located at the top of the lower rod (7) and the upper rod and the lower rod are coaxially arranged, the upper rod (9) and the lower rod (7) are of an integrated structure, a limiting convex strip (4) is arranged on the surface of one side.
2. A system for monitoring contaminants in groundwater according to claim 1, wherein: drilling rod outer tube inserts (12) and intake chamber (2) clearance fit, the front and the back of drilling rod outer tube inserts (12) all set up to hollow out construction, mounting groove (13) have been seted up to the central point of drilling rod outer tube inserts (12).
3. A system for monitoring contaminants in groundwater according to claim 2, wherein: the mosaic piece inner core (11) is installed in the installation groove (13), and the mosaic piece inner core (11) is of a flocculent structure.
4. A system for monitoring contaminants in groundwater according to claim 1, wherein: the upper surface of the upper rod (9) is provided with a connecting thread (10) matched with a drilling machine, and the upper surface inside the drill rod outer sleeve (1) is provided with an internal thread (6).
5. A system for monitoring contaminants in groundwater according to claim 1, wherein: the lower surface of the upper rod (9) is provided with a limiting ring (8), and the limiting ring (8) and the upper rod (9) are of an integrated structure.
6. A system for monitoring contaminants in groundwater according to claim 1, wherein: the drill rod is characterized in that a drill bit is arranged at the bottom of the drill rod outer sleeve (1), and the drill bit and the drill rod outer sleeve (1) are of an integrated structure.
7. A system for monitoring contaminants in groundwater according to claim 1, wherein: the limiting convex strip (4) is in clearance fit with the water inlet groove (2), and the drill rod inner rod (3) is in clearance fit with the drill rod outer sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910997844.0A CN110685681B (en) | 2019-10-21 | 2019-10-21 | Underground water pollutant monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910997844.0A CN110685681B (en) | 2019-10-21 | 2019-10-21 | Underground water pollutant monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110685681A true CN110685681A (en) | 2020-01-14 |
| CN110685681B CN110685681B (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910997844.0A Active CN110685681B (en) | 2019-10-21 | 2019-10-21 | Underground water pollutant monitoring system |
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| Country | Link |
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| CN (1) | CN110685681B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896700A (en) * | 2020-07-03 | 2020-11-06 | 马潇涵 | Wisdom urban water environment monitoring system |
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| CN206348165U (en) * | 2016-12-23 | 2017-07-21 | 上海岩土工程勘察设计研究院有限公司 | A kind of water and soil integrated sampling device |
| 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 |
| CN207181080U (en) * | 2017-09-11 | 2018-04-03 | 江苏省环境科学研究院 | A kind of device for directly promoting soil sample |
| CN207813492U (en) * | 2018-02-06 | 2018-09-04 | 陕西师范大学 | A kind of earth boring auger for monitoring soil moisture |
| CN207923527U (en) * | 2018-03-27 | 2018-09-28 | 辛博 | A kind of hydrogeology underground water sampler |
| CN108956768A (en) * | 2018-06-06 | 2018-12-07 | 江苏工程职业技术学院 | A kind of soil antidetonation suitability monitoring device based on GIS technology |
| CN109724836A (en) * | 2017-10-27 | 2019-05-07 | 王韬 | A kind of underground water surveying device for coal mining |
| CN209432490U (en) * | 2019-01-09 | 2019-09-24 | 郑州汇之丰科技有限公司 | A kind of drilling rod of soil sampling apparatus |
-
2019
- 2019-10-21 CN CN201910997844.0A patent/CN110685681B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206267826U (en) * | 2016-09-23 | 2017-06-20 | 武汉地大华睿地学技术有限公司 | A kind of portable sampling equipment used for geological prospecting |
| CN106680033A (en) * | 2016-12-23 | 2017-05-17 | 上海岩土工程勘察设计研究院有限公司 | Static cone penetration test type underground water sampling method |
| CN206348165U (en) * | 2016-12-23 | 2017-07-21 | 上海岩土工程勘察设计研究院有限公司 | A kind of water and soil integrated sampling device |
| CN207181080U (en) * | 2017-09-11 | 2018-04-03 | 江苏省环境科学研究院 | A kind of device for directly promoting soil sample |
| 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 |
| CN109724836A (en) * | 2017-10-27 | 2019-05-07 | 王韬 | A kind of underground water surveying device for coal mining |
| CN207813492U (en) * | 2018-02-06 | 2018-09-04 | 陕西师范大学 | A kind of earth boring auger for monitoring soil moisture |
| CN207923527U (en) * | 2018-03-27 | 2018-09-28 | 辛博 | A kind of hydrogeology underground water sampler |
| CN108956768A (en) * | 2018-06-06 | 2018-12-07 | 江苏工程职业技术学院 | A kind of soil antidetonation suitability monitoring device based on GIS technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896700A (en) * | 2020-07-03 | 2020-11-06 | 马潇涵 | Wisdom urban water environment monitoring system |
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| CN110685681B (en) | 2022-08-19 |
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