CN115931450B - Groundwater sampling device for hydrogeology - Google Patents
Groundwater sampling device for hydrogeology Download PDFInfo
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- CN115931450B CN115931450B CN202310154170.4A CN202310154170A CN115931450B CN 115931450 B CN115931450 B CN 115931450B CN 202310154170 A CN202310154170 A CN 202310154170A CN 115931450 B CN115931450 B CN 115931450B
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- 238000005070 sampling Methods 0.000 title claims abstract description 92
- 239000003673 groundwater Substances 0.000 title claims abstract description 34
- 238000007789 sealing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 238000005457 optimization Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 239000005442 atmospheric precipitation Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- 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
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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Abstract
The invention relates to the technical field of groundwater sampling devices, in particular to a groundwater sampling device for hydrogeology. The utility model provides a groundwater sampling device for hydrogeology, includes support frame, sampling chain and drive part, and the upper end of support frame and the lower extreme of support frame all are equipped with the spacing groove, and the sampling chain encircles in support frame length direction's outside through the spacing groove, and the sampling chain includes a plurality of end to end's sampling box, is connected with the extension pole between two adjacent sampling boxes, and the lower part of support frame is equipped with struts the subassembly, struts and rotates between subassembly and the support frame to be connected, and drive part connects in support frame upper portion. Support the sampling chain through the support frame, the sampling chain includes a plurality of sampling boxes, can frequently, intensive ground water to the assigned position sample to do not have the influence each other between two adjacent sampling boxes, improve sampling efficiency, can prevent effectively that the pollution and the mixing of the inside water sample of sampling box from, ensure the accuracy that ground water detected.
Description
Technical Field
The invention relates to the technical field of groundwater sampling devices, in particular to a groundwater sampling device for hydrogeology.
Background
Groundwater is an important water resource in China, and particularly aims at coastal cities, inland cities and northern large and medium cities in China. However, with the rapid increase of industrial and agricultural production and living water demand, the sewage discharge amount is increased year by year, so that the ground water of China is poor and pollution situation is more severe. The shallow groundwater is formed by atmospheric precipitation and surface runoff water permeability, the water quality and the water quantity are influenced by the precipitation and the runoff, the buried water is generally between a few meters and more than ten meters, the influence of soil environment and soil sanitation condition is large, and the shallow groundwater is an important basis for researching water source pollution.
Because shallow groundwater is updated soon, and quality of water changes greatly, research shallow groundwater often needs intensive sampling, but current groundwater sampling pipe in the present market is sampled, and groundwater rises constantly along the sampling pipe, probably contains the groundwater of a plurality of periods in the sampling pipe, leads to the testing result of groundwater inaccurate, influences the research result of groundwater.
The invention aims to solve the technical problems that: the utility model provides a groundwater sampling device for hydrogeology can realize the intensive sampling of groundwater to can not influence each other between the groundwater of different sampling period, ensure the accuracy that groundwater detected.
Disclosure of Invention
In order to solve the problems, the invention provides a groundwater sampling device for hydrogeology.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a groundwater sampling device for hydrogeology, includes support frame, sampling chain and drive part, the upper end of support frame and the lower extreme of support frame all are equipped with the spacing groove, the sampling chain encircles in support frame length direction's outside through the spacing groove, the sampling chain includes a plurality of end to end's sampling box, is connected with the extension pole between two adjacent sampling boxes, the lower part of support frame is equipped with struts the subassembly, it is connected to rotate between strut subassembly and the support frame, drive part connects in support frame upper portion.
As optimization, the drive part comprises two mounting plates, the two mounting plates are respectively fixed on the front side of the support frame and the rear side of the support frame, a first driving roller and a second driving roller are connected between the two mounting plates, an intermediate driving roller is connected on the mounting plate between the first driving roller and the second driving roller, the axle center of the first driving roller, the axle center of the second driving roller and the axle center of the intermediate driving roller are horizontally arranged in parallel, and one axle center end of the first driving roller, one axle center end of the second driving roller and one axle center end of the intermediate driving roller are connected with driving motors.
As optimization, the sampling box include box body and lid, the box body with the lid is articulated, the lid inboard is equipped with sealed the pad, connect pole one end and lid outside fixedly, connect the other end with the bottom of box body rotates to be connected, connect the pole and connect in the sampling box with the adjacent one side outer end of support frame, the lid outside with connect and be connected with the pull rod of slope between the pole, connect the pole and set up perpendicularly with the lateral surface of lid.
As the optimization, the spacing inslot be equipped with first auxiliary roller, the upper portion of support frame is equipped with two upper portion vaulting poles, two upper portion vaulting poles horizontal symmetry set up in the both sides of support frame, the one end that the support frame was kept away from to upper portion vaulting pole rotates and is connected with the second auxiliary roller, the one end that the support frame was kept away from to the strut subassembly is equipped with the third auxiliary roller, the adjacent one side of sampling chain and support frame all with first auxiliary roller, third auxiliary roller and the contact of second auxiliary roller.
As optimization, the lower part of the support frame is provided with a longitudinally arranged connecting groove, the middle part of the connecting groove is provided with a spring rotating shaft, the supporting component comprises a lower supporting rod and a limiting component, and the center of the length direction of the lower supporting rod is rotationally connected with the connecting groove through the spring rotating shaft;
the limiting component comprises a limiting block, a sliding groove is formed in one side of the lower portion of the supporting frame, the lower end of the sliding groove is arranged adjacent to the upper portion of the connecting groove, the limiting block is in sliding connection with the sliding groove, the limiting block is arranged on the outer side of the connecting groove, a pull rope is connected to the top of the limiting block, and the upper end of the pull rope is arranged at the top of the supporting frame.
As optimization, sampling channels are reserved between the first driving roller and the middle driving roller and between the second driving roller and the middle driving roller, the rotation direction of the first driving roller is the same as that of the second driving roller, the rotation direction of the middle driving roller is opposite to that of the first driving roller, and the advancing direction of the sampling chain moves from the box body to the box cover.
As optimization, the upper supporting rod and the supporting frame between be equipped with the sample receiving box of slope, the top of sample receiving box, connect one side that sample receiving box and sampling chain are adjacent be the opening, the bottom of sample receiving box is connected with the sampling tube.
The beneficial effect of this scheme is: the groundwater sampling device for hydrogeology has the following advantages:
the sampling chain is supported by the support frame and comprises a plurality of sampling boxes, underground water at a designated position can be frequently and densely sampled, the adjacent two sampling boxes are not influenced by each other, the sampling efficiency is improved, pollution and mixing of water samples in the sampling boxes can be effectively prevented, and the accuracy of underground water detection is ensured;
the device simple structure, convenient to use, groundwater sampling efficiency is high, and the installation and the use of being convenient for can make things convenient for going on of groundwater sampling work greatly.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic view of the lower shaft side of the present invention.
Fig. 3 is a front view of the lower part of the invention.
Fig. 4 is a schematic axial side view of the lower use state of the present invention.
Fig. 5 is a schematic view of the distractor assembly of the present invention in a distracted state.
Fig. 6 is a schematic view of the distractor assembly of the present invention in a collapsed condition.
Fig. 7 is a schematic upper shaft side view of the present invention.
Fig. 8 is a schematic diagram of a connection structure of the sampling box according to the present invention.
FIG. 9 is a schematic diagram of the connection structure of the cover and the connecting rod of the present invention.
Wherein, 1, a supporting frame, 2, a connecting rod, 3, a limit groove, 4, a mounting plate, 5, a first driving roller, 6, a second driving roller, 7, a middle driving roller, 8, a driving motor, 9, a box body, 10, a box cover, 11 and a sealing gasket, 12, pull rods, 13, first auxiliary rollers, 14, second auxiliary rollers, 15, third auxiliary rollers, 16, connecting grooves, 17, spring rotating shafts, 18, lower supporting rods, 19, limiting blocks, 20, sliding grooves, 21 and sample receiving boxes.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
As shown in fig. 1 and 2, the groundwater sampling device for hydrogeology comprises a supporting frame 1, a sampling chain and a driving part, wherein limit grooves 3 are formed in the upper end of the supporting frame 1 and the lower end of the supporting frame 1, the sampling chain surrounds the outer side of the supporting frame 1 in the length direction through the limit grooves 3, the sampling chain comprises a plurality of sampling boxes connected end to end, a connecting rod 2 is connected between every two adjacent sampling boxes, a supporting assembly is arranged at the lower part of the supporting frame 1, the supporting assembly is rotationally connected with the supporting frame 1, and the driving part is connected with the upper part of the supporting frame 1.
As shown in fig. 1 and 7, the driving portion includes two mounting plates 4, the two mounting plates 4 are respectively fixed on the front side of the support frame 1 and the rear side of the support frame 1, a first driving roller 5 and a second driving roller 6 are connected between the two mounting plates 4, an intermediate driving roller 7 is connected on the mounting plate 4 between the first driving roller 5 and the second driving roller 6, the axis of the first driving roller 5, the axis of the second driving roller 6 and the axis of the intermediate driving roller 7 are horizontally parallel, and one end of the axis of the first driving roller 5, one end of the axis of the second driving roller 6 and one end of the axis of the intermediate driving roller 7 are all connected with a driving motor 8.
As shown in fig. 7 and 8, the sampling box comprises a box body 9 and a box cover 10, the box body 9 is hinged to the box cover 10, a sealing gasket 11 is arranged on the inner side of the box cover 10, one end of the connecting rod 2 is fixedly connected with the outer side of the box cover 10, the other end of the connecting rod 2 is rotatably connected with the bottom of the box body 9, the connecting rod 2 is connected to the outer end of one side, adjacent to the support frame 1, of the sampling box, an inclined pull rod 12 is connected between the outer side of the box cover 10 and the connecting rod 2, and the connecting rod 2 is perpendicular to the outer side surface of the box cover 10.
As shown in fig. 5 and 7, the first auxiliary roller 13 is disposed in the limiting groove 3, two upper supporting rods are disposed on the upper portion of the supporting frame 1 and are horizontally and symmetrically disposed on two sides of the supporting frame 1, one end, away from the supporting frame 1, of the upper supporting rods is rotationally connected with the second auxiliary roller 14, one end, away from the supporting frame 1, of the supporting frame 1 of the supporting assembly is provided with the third auxiliary roller 15, and one side, adjacent to the sampling chain and the supporting frame 1, is in contact with the first auxiliary roller 13, the third auxiliary roller 15 and the second auxiliary roller 14.
As shown in fig. 1 and 5, a connecting groove 16 is longitudinally arranged at the lower part of the support frame 1, a spring rotating shaft 17 is arranged at the middle part of the connecting groove 16, the expanding assembly comprises a lower supporting rod 18 and a limiting assembly, and the center of the length direction of the lower supporting rod 18 is rotationally connected with the connecting groove 16 through the spring rotating shaft 17;
as shown in fig. 1 and 5, the limiting component comprises a limiting block 19, a chute 20 is arranged on one side of the lower portion of the supporting frame 1, the lower end of the chute 20 is arranged adjacent to the upper portion of the connecting groove 16, the limiting block 19 is slidably connected with the chute 20, the limiting block 19 is arranged on the outer side of the connecting groove 16, a pull rope is connected to the top of the limiting block 19, and the upper end of the pull rope is arranged on the top of the supporting frame 1.
As shown in fig. 7, sampling channels are respectively reserved between the first driving roller 5 and the middle driving roller 7 and between the second driving roller 6 and the middle driving roller 7, the rotation direction of the first driving roller 5 is the same as the rotation direction of the second driving roller 6, the rotation direction of the middle driving roller 7 is opposite to the rotation direction of the first driving roller 5, and the travelling direction of the sampling chain is from the box body 9 to the box cover 10.
As shown in fig. 7, an inclined sample receiving box 21 is arranged between the upper supporting rod and the supporting frame 1, the top of the sample receiving box 21 and one side of the sample receiving box 21 adjacent to the sampling chain are all openings, and the bottom of the sample receiving box 21 is connected with a sampling tube.
The application method is as follows;
(1) Before use, the device with proper height is selected according to different heights to be sampled, the lower stay bar 18 is vertically stored in the connecting groove 16, the limiting block 19 slides along the sliding groove 20, and the limiting block 19 is used for limiting the lower stay bar 18;
(2) Tightening a sampling chain at the bottom limit groove 3 of the support frame 1, and reserving a margin on the sampling chain on the support frame 1;
(3) Lowering the support frame 1 with the sampling chain to a designated height in the sampling pipeline, and pulling the pull rope upwards to enable the limiting block 19 to move upwards along the sliding groove 20 until the limiting of the lower supporting rod 18 is released;
(4) Under the action of the spring rotating shaft 17, the lower supporting rod 18 rotates in a direction away from the supporting frame 1, and a worker manually lowers the allowance of the sampling chain until the lower supporting rod 18 is horizontal, and the sampling chain is tightly connected with the supporting frame 1;
(5) The driving motor 8 is electrified to operate, and under the action of the first driving roller 5, the second driving roller 6 and the middle driving roller 7, the sampling chain is driven to rotate around the supporting frame 1;
(6) In the rotation process of the sampling chain, a sampling box positioned at the lower part of the support frame 1 sequentially passes through a third auxiliary roller 15 positioned at the right side of the support frame 1, a first auxiliary roller 13 positioned at the lower end of the support frame 1 and a third auxiliary roller 15 positioned at the left side of the support frame 1, and when the sampling box passes through the first auxiliary roller 13 positioned at the lower end of the support frame 1, as the two third auxiliary rollers 15 are higher than the first auxiliary roller 13 positioned at the bottom, the relative rotation of the box body 9 and the box cover 10 is carried out, the sampling box is opened, water is taken, and when the sampling box passes through the third auxiliary roller 15 positioned at the left side of the support frame 1 from bottom to top, the sampling box is closed;
(7) When the sampling box reaches the first auxiliary roller 13 at the top of the support frame 1, relative rotation is generated between the box cover 10 and the box body 9, the box cover 10 is opened, and the sampling is poured into the sampling box 21;
(8) The water in the cartridge 21 is detected.
The sample receiving box 21 can be replaced at any time, and the sample receiving box 21 is used for receiving the water sample in the corresponding sample receiving box according to the time interval of sampling detection.
The scheme also comprises a controller, the position of the controller is set by the working personnel according to the actual situation, and the controller is used for controlling the electric devices used in the scheme, including but not limited to a sensor, a motor, a telescopic rod, a water pump, an electromagnetic valve, an electric heating wire, a heat pump, a display screen, a computer input device, a switch button, a communication device, a lamp, a loudspeaker and a microphone; the controller is an Intel processor, an AMD processor, a PLC controller, an ARM processor or a singlechip, and also comprises a main board, a memory bank, a storage medium and a power supply which is matched with the controller for use, wherein the power supply is a commercial power or a lithium battery; when the display screen is provided, a display card is also provided; regarding the operation principle of the controller, please refer to the automatic control principle, the microcontroller principle and the application simulation case, and the sensor principle and application published by the university of Qinghai press, and other books in the field can be read by reference; other non-mentioned automation control and power utilization devices are well known to those skilled in the art and will not be described in detail herein.
The above embodiments are merely specific examples of the present invention, and the scope of the present invention includes, but is not limited to, the product forms and styles of the above embodiments, any suitable changes or modifications made by one of ordinary skill in the art, which are consistent with the claims of the present invention, shall fall within the scope of the present invention.
Claims (4)
1. The utility model provides a groundwater sampling device for hydrogeology which characterized in that: the sampling chain is surrounded on the outer side of the length direction of the support frame through the limiting grooves, the sampling chain comprises a plurality of sampling boxes which are connected end to end, a connecting rod is connected between every two adjacent sampling boxes, a supporting component is arranged at the lower part of the support frame, the supporting component is rotationally connected with the support frame, and the driving part is connected to the upper part of the support frame;
the sampling box comprises a box body and a box cover, wherein the box body is hinged with the box cover, a sealing gasket is arranged on the inner side of the box cover, one end of a connecting rod is fixedly connected with the outer side of the box cover, the other end of the connecting rod is rotationally connected with the bottom of the other box body, the connecting rod is connected to the outer end of one side of the sampling box adjacent to the supporting frame, an inclined pull rod is connected between the outer side of the box cover and the connecting rod, and the connecting rod is perpendicular to the outer side surface of the box cover;
the device is characterized in that a first auxiliary roller is arranged in the limiting groove, two upper supporting rods are arranged on the upper part of the supporting frame and are horizontally and symmetrically arranged on two sides of the supporting frame, one end, far away from the supporting frame, of the upper supporting rods is rotationally connected with a second auxiliary roller, one end, far away from the supporting frame, of the supporting frame of the supporting assembly is provided with a third auxiliary roller, and one side, adjacent to the supporting frame, of the sampling chain is in contact with the first auxiliary roller, the third auxiliary roller and the second auxiliary roller;
the lower part of the support frame is provided with a connecting groove which is longitudinally arranged, the middle part of the connecting groove is provided with a spring rotating shaft, the supporting component comprises a lower supporting rod and a limiting component, and the center of the length direction of the lower supporting rod is rotationally connected with the connecting groove through the spring rotating shaft;
the limiting component comprises a limiting block, a sliding groove is formed in one side of the lower portion of the supporting frame, the lower end of the sliding groove is arranged adjacent to the upper portion of the connecting groove, the limiting block is in sliding connection with the sliding groove, the limiting block is arranged on the outer side of the connecting groove, a pull rope is connected to the top of the limiting block, and the upper end of the pull rope is arranged at the top of the supporting frame.
2. The groundwater sampling device for hydrogeology of claim 1, wherein: the driving part comprises two mounting plates, the two mounting plates are respectively fixed on the front side of the support frame and the rear side of the support frame, a first driving roller and a second driving roller are connected between the two mounting plates, an intermediate driving roller is connected on the mounting plate between the first driving roller and the second driving roller, the axle center of the first driving roller, the axle center of the second driving roller and the axle center of the intermediate driving roller are horizontally arranged in parallel, and one axle center end of the first driving roller, one axle center end of the second driving roller and one axle center end of the intermediate driving roller are all connected with driving motors.
3. A groundwater sampling device for hydrogeology according to claim 1 or 2, characterized in that: sampling channels are reserved between the first driving roller and the middle driving roller and between the second driving roller and the middle driving roller, the rotation direction of the first driving roller is the same as that of the second driving roller, and the rotation direction of the middle driving roller is opposite to that of the first driving roller.
4. The groundwater sampling device for hydrogeology of claim 1, wherein: the sample collecting box is characterized in that an inclined sample collecting box is arranged between the upper supporting rod and the supporting frame, the top of the sample collecting box and one side, adjacent to the sampling chain, of the sample collecting box are all openings, and the bottom of the sample collecting box is connected with a sampling tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310154170.4A CN115931450B (en) | 2023-02-23 | 2023-02-23 | Groundwater sampling device for hydrogeology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310154170.4A CN115931450B (en) | 2023-02-23 | 2023-02-23 | Groundwater sampling device for hydrogeology |
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| CN115931450A CN115931450A (en) | 2023-04-07 |
| CN115931450B true CN115931450B (en) | 2023-05-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214749168U (en) * | 2021-04-08 | 2021-11-16 | 攀枝花学院 | Domestic sewage treatment plant inlet and outlet water quality sampling device |
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| NL283781A (en) * | 1962-09-28 | |||
| NL158571B (en) * | 1970-11-04 | 1978-11-15 | Spaarndammer Scheepswerf Stape | DREDGING MILL. |
| US7255016B2 (en) * | 2003-03-13 | 2007-08-14 | Burton James D | Soil sampler apparatus and method |
| CN105588731B (en) * | 2016-01-26 | 2018-01-02 | 谢飞 | A kind of multilayer water level water quality detecting system and its implementation |
| CN208688866U (en) * | 2018-09-17 | 2019-04-02 | 赵珍 | A kind of underground water sampler for hydrogeologic prospecting |
| CN211717833U (en) * | 2019-12-04 | 2020-10-20 | 赵明 | Sampling device that municipal administration sewage treatment used |
| CN212539818U (en) * | 2020-06-23 | 2021-02-12 | 山东省地质矿产勘查开发局第八地质大队(山东省第八地质矿产勘查院) | Novel groundwater sample thief |
| CN213336830U (en) * | 2020-08-26 | 2021-06-01 | 徐州市申克测控机电设备有限公司 | Sampling device adopting suspension type transmission |
| CN111964979B (en) * | 2020-08-27 | 2021-03-16 | 滁州学院 | A sampling device for hydrology information acquisition |
| CN215374614U (en) * | 2020-12-31 | 2021-12-31 | 江西省水土保持科学研究院 | A Sediment Content Sampling and Determination Device for Soil and Water Conservation Monitoring |
| CN214309731U (en) * | 2021-03-16 | 2021-09-28 | 山东科泰环境监测有限公司 | A multi-level degree of depth sampling device for sewage detection |
| CN113074985B (en) * | 2021-03-22 | 2023-11-03 | 何慧慧 | A water sample classification sampling device for marine management |
| CN215575078U (en) * | 2021-09-01 | 2022-01-18 | 杭州和一境创环保科技有限公司 | Real-time detection device for urban water environment ecological restoration |
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| CN217180122U (en) * | 2022-01-18 | 2022-08-12 | 刘昊宗 | Hydrogeology sampler |
| CN114878232A (en) * | 2022-05-13 | 2022-08-09 | 芜湖职业技术学院 | A drone water sampling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214749168U (en) * | 2021-04-08 | 2021-11-16 | 攀枝花学院 | Domestic sewage treatment plant inlet and outlet water quality sampling device |
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