CN114537598B - Unmanned ship of miniature water quality testing - Google Patents
Unmanned ship of miniature water quality testing Download PDFInfo
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- CN114537598B CN114537598B CN202210082408.2A CN202210082408A CN114537598B CN 114537598 B CN114537598 B CN 114537598B CN 202210082408 A CN202210082408 A CN 202210082408A CN 114537598 B CN114537598 B CN 114537598B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
- B63H5/165—Propeller guards, line cutters or other means for protecting propellers or rudders
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- 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
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B2035/006—Unmanned surface vessels, e.g. remotely controlled
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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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Ocean & Marine Engineering (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the technical field of water quality detection, and discloses a small-sized unmanned water quality detection ship which comprises a lower ship body, wherein an upper ship body is installed at the top of the lower ship body, the lower ship body is hermetically connected with the upper ship body, water inlet cylinders are fixedly connected to the lower ship body and the upper ship body, a propeller is installed in each of the two water inlet cylinders, and a partition plate is fixedly connected to the bottom end of an inner cavity of the lower ship body. According to the invention, the propeller is started to push the ship body to move on the water surface, then the second motor and the waterproof motor are started to drive the cutting blade to rotate at a high speed and swing, so that water plants on the water surface can be cut, the ship body is further favorable for being suitable for running on various water areas, meanwhile, the second electromagnetic valve and the third electromagnetic valve are started to add water into the ship body to increase the weight of the ship body, so that the ship body can run in the water, different water amounts are added to adjust the depth of the ship body in the water, and further, the water quality at different depths can be detected through the water quality detection head.
Description
Technical Field
The invention relates to the technical field of water quality detection, in particular to a small water quality detection unmanned ship.
Background
Water is a source of human civilization, is an indispensable element for human beings, is closely related to daily life of people, but along with the development of social economy, the pollution of industrial wastewater discharge, pesticide abuse and the like to water bodies is increasingly aggravated, and the pollution of water sources inevitably leads to the threat of human health. In the face of possible contamination of the water source, it is necessary to periodically test the water source. Therefore, in order to grasp the water quality condition of the governed water area, the environmental monitoring department usually performs regular or irregular sampling detection and analysis, and determines the corresponding environmental protection measures according to various quality indexes of the water quality.
In the process of implementing the invention, the inventor finds that at least the following problems in the prior art are not solved: the existing water quality detection unmanned ship can be influenced by aquatic weeds growing on a water source to influence the walking of the unmanned ship, so that the water quality detection unmanned ship in a partial aquatic weed region can not drive into the water source, the water quality in the region can not be detected, and the water quality in different depths can not be detected by the detection unmanned ship.
Disclosure of Invention
The invention aims to provide a small unmanned ship for water quality detection, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a miniature water quality testing unmanned ship, includes hull down, the hull is installed at the top of hull down, hull and last hull sealing connection down, equal fixedly connected with intake pipe, two on hull and the last hull down all install the propeller in the intake pipe, the inner chamber bottom fixedly connected with baffle of hull down, the inner chamber fixed mounting of hull has the suction pump down, fixedly connected with connecting pipe on the suction pump, fixed intercommunication has first pipe on the connecting pipe, the right-hand member of first pipe runs through the right side of baffle arrangement baffle in, both ends fixed mounting respectively has third solenoid valve and second solenoid valve about the inner chamber of first pipe, the waterproof switch board is installed to the inner chamber of hull down, install water quality testing module, communication module and control module in the waterproof switch board, the second motor is installed on the inner chamber right side of hull down, the bottom of hull is run through in the bottom of hull down arranged in to the inner chamber of first pipe, the motor shaft bottom fixedly connected with the connecting block of second motor, the slope is installed waterproof motor on the connecting block, fixedly connected with cutting blade on the hull of waterproof motor shaft, the bottom of water quality testing is installed to the lower water quality testing and is arranged in the suction pipe and is run through in the inner chamber of hull under the fixed connection of hull.
As a preferred embodiment of the present invention, a submersible pump is installed in an inner cavity of the lower hull, an inverted T-shaped water pipe is fixedly connected to a lower portion of the submersible pump, a right end of the inverted T-shaped water pipe is fixedly communicated with the partition plate, a drain pipe is fixedly communicated with a top portion of the submersible pump, the drain pipe penetrates through the lower hull and is disposed on an outer side of the lower hull, and a first electromagnetic valve is installed in an inner cavity of the drain pipe.
In a preferred embodiment of the present invention, a cooling liquid is injected into the interlayer of the waterproof control cabinet.
As a preferred embodiment of the present invention, the left ends of the two water inlet cylinders are both fixedly connected with a filter cover, and the right ends of the two filter covers are both arranged in an arched manner.
As a preferred embodiment of the present invention, the bottom of the lower hull is uniformly coated with a chlorinated rubber finish.
In a preferred embodiment of the present invention, a waterproof cover is fixedly installed on the outer sides of the second motor and the water pump.
As a preferred embodiment of the present invention, a sealing strip is fixedly connected to the top of the lower hull.
In a preferred embodiment of the present invention, a filter screen is fixedly installed at the bottom of the suction pipe.
As a preferred embodiment of the invention, the waterproof control cabinet is arranged in the middle of the bottom end of the inner cavity of the lower hull.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, through the arrangement of the lower ship body, the upper ship body, the second motor, the waterproof motor, the cutting blade, the water suction pump, the connecting pipe, the water suction pipe, the first conduit, the partition plate, the second electromagnetic valve, the third electromagnetic valve and the propeller, the ship body is pushed to move on the water surface by starting the propeller, then the second motor and the waterproof motor are started to drive the cutting blade to rotate at a high speed and swing, so that aquatic weeds on the water surface can be cut, the ship body is further favorably suitable for running on various water areas, meanwhile, the second electromagnetic valve and the third electromagnetic valve are started to add water into the ship body to increase the weight of the ship body, so that the ship body can run in water, different water quantities are added to adjust the depth of the ship body in water, and further, the water quality at different depths can be detected through the water quality detection head.
2. According to the invention, through the arrangement of the submersible pump, the inverted T-shaped water pipe, the drain pipe and the first electromagnetic valve, the submersible pump is started and the first electromagnetic valve is opened, so that water in a lower ship body can be discharged out of the lower ship body through the drain pipe, the total mass of the ship body can be controlled at will, the ship body can be conveniently controlled to move in water or move on the water surface to and fro, and the water quality detection is further facilitated.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of the overall structure of a small unmanned water quality testing ship according to the present invention;
fig. 2 is a top view of a lower hull of a small water quality testing unmanned ship according to the present invention;
FIG. 3 is a left side view of the connection between the upper hull and the lower hull of the small unmanned water quality testing ship of the invention;
fig. 4 is a schematic system control diagram of a small unmanned water quality testing ship according to the invention.
In the figure: 1. a lower hull; 2. an upper hull; 3. a water inlet cylinder; 4. a filter housing; 5. chlorinated rubber finish; 6. a water quality detection head; 7. a filter screen; 8. a suction pipe; 9. connecting blocks; 10. a waterproof motor; 11. a cutting blade; 12. a sealing strip; 13. a waterproof control cabinet; 14. cooling liquid; 15. a water quality detection module; 16. a communication module; 17. a control module; 18. a drain pipe; 19. a first electromagnetic valve; 20. a submersible pump; 21. an inverted T-shaped water pipe; 22. a partition plate; 23. a waterproof cover; 24. a second motor; 25. a second electromagnetic valve; 26. a water pump; 27. a connecting pipe; 28. a third electromagnetic valve; 29. a first conduit; 30. a propeller.
Detailed Description
Referring to fig. 1-4, the present invention provides a technical solution: a small unmanned water quality testing ship comprises a lower ship body 1, wherein an upper ship body 2 is installed at the top of the lower ship body 1, the lower ship body 1 is in sealing connection with the upper ship body 2, water inlet cylinders 3 are fixedly connected to the lower ship body 1 and the upper ship body 2 respectively, a propeller 30 is installed in each of the two water inlet cylinders 3, a partition plate 22 is fixedly connected to the bottom end of an inner cavity of the lower ship body 1, a water suction pump 26 is fixedly installed in the inner cavity of the lower ship body 1, a connecting pipe 27 is fixedly connected to the water suction pump 26, a first conduit 29 is fixedly communicated with the connecting pipe 27, the right end of the first conduit 29 penetrates through the partition plate 22 and is arranged on the right side of the partition plate 22, a third electromagnetic valve 28 and a second electromagnetic valve 25 are fixedly installed at the left end and the right end of the inner cavity of the first conduit 29 respectively, a waterproof control cabinet 13 is installed in the inner cavity of the lower ship body 1, install water quality testing module 15, communication module 16 and control module 17 in the waterproof switch board 13, second motor 24 is installed on the inner chamber right side of hull 1 down, the motor shaft of second motor 24 runs through in hull 1 down arranges the bottom of hull 1 down, the motor shaft bottom fixedly connected with connecting block 9 of second motor 24, slope installation has waterproof motor 10 on connecting block 9, fixedly connected with cutting blade 11 on waterproof motor 10's the motor shaft, water quality testing head 6 and suction pipe 8 are installed to the bottom of hull 1 down, suction pipe 8 runs through and arranges the inner chamber of hull 1 down in hull 1 down and suction pump 26 fixed intercommunication down in hull 1 down, through hull 1 down, last hull 2, second motor 24, waterproof motor 10, cutting blade 11, suction pump 26, connecting pipe 27, suction pipe 8, first pipe 29, baffle 22, second solenoid valve 25, third solenoid valve 28, propeller 30's setting, promote the hull to remove on the surface of water through starting propeller 30, then start second motor 24 and waterproof motor 10 and drive cutting blade 11 high-speed rotation and swing, thereby can cut the pasture and water on the surface of water, further be favorable to the hull to be applicable to and go on multiple waters, start the weight that second solenoid valve 25 and third solenoid valve 28 added water to the hull in increase hull simultaneously, thereby can make the hull go in the aquatic, thereby add the different water yield and adjust the degree of depth of hull in the aquatic, further quality of water through water quality testing head 6 can detect the quality of water of the different degree of depth.
In this embodiment (please refer to fig. 2), immersible pump 20 is installed to the inner chamber of lower hull 1, immersible pump 20's lower part links firmly to lead to there is type of falling T water pipe 21, the right-hand member and the fixed intercommunication of baffle 22 of type of falling T water pipe 21, the fixed intercommunication in top of immersible pump 20 has drain pipe 18, drain pipe 18 runs through the outside of lower hull 1 of arranging in lower hull 1, first solenoid valve 19 is installed to drain pipe 18's inner chamber, through immersible pump 20, type of falling T water pipe 21, drain pipe 18 and the setting of first solenoid valve 19, through starting immersible pump 20 and opening first solenoid valve 19, thereby can discharge lower hull 1 through drain pipe 18 with the water in the lower hull 1, thereby can control hull gross mass at will, thereby can conveniently control the hull and move or the surface of water on the aquatic and make a round trip to switch, further be favorable to detecting quality of water.
In this embodiment (please refer to fig. 2), a coolant 14 is injected into the interlayer of the waterproof control cabinet 13, and the coolant 14 can cool down the electrical components in the waterproof control cabinet 13, so as to prevent the electrical components from being damaged due to an overhigh temperature.
In this embodiment (please refer to fig. 1), the left ends of the two water inlet cylinders 3 are fixedly connected with the filter housings 4, the right ends of the two filter housings 4 are both arranged in an arched manner, so that the situation that the propeller is blocked by a large amount of impurities to affect the movement of the ship body can be avoided through the filter housings 4, and meanwhile, the situation that the moving speed of the speed ship body in which water enters the water inlet cylinders is affected by the accumulation of a large amount of impurities on the filter housings 4 is avoided.
In the embodiment (please refer to fig. 1), the chlorinated rubber finish paint 5 is uniformly coated on the bottom of the lower hull 1, and the corrosion resistance of the lower hull 1 is increased by the chlorinated rubber finish paint 5, so that the service life of the lower hull 1 is further prolonged.
In this embodiment (please refer to fig. 2), the waterproof cover 23 is fixedly installed on the outer sides of the second motor 24 and the water pump 26, and the second motor 24 can be prevented from being damaged by water through the waterproof cover 23.
In this embodiment (see fig. 2), the top of the lower hull 1 is fixedly connected with a sealing strip 12, and the sealing performance of the connection between the upper hull 2 and the lower hull 1 is increased by the sealing strip 12.
In this embodiment (please refer to fig. 1), the bottom of the suction pipe 8 is fixedly installed with a filter screen 7, and a large amount of impurities are prevented from entering the suction pump 26 through the filter screen 7 and damaging the same.
In this embodiment (please refer to fig. 2), the waterproof control cabinet 13 is installed in the middle of the bottom end of the inner cavity of the lower hull 1, so as to ensure that the center of gravity of the hull is in the middle, thereby facilitating the driving of the hull.
When the small water quality detection unmanned ship is used, it needs to be explained that the invention is a small water quality detection unmanned ship, which comprises a lower ship body 1, an upper ship body 2, a water inlet cylinder 3, a filter cover 4, chlorinated rubber finish paint 5, a water quality detection head 6, a filter screen 7, a water suction pipe 8, a connecting block 9, a waterproof motor 10, a cutting blade 11, a sealing strip 12, a waterproof control cabinet 13, cooling liquid 14, a water quality detection module 15, a communication module 16, a control module 17, a drain pipe 18, a first electromagnetic valve 19, a submersible pump 20, an inverted T-shaped water pipe 21, a partition plate 22, a waterproof cover 23, a second motor 24, a second electromagnetic valve 25, a water suction pump 26, a connecting pipe 27, a third electromagnetic valve 28, a first conduit 29 and a propeller 30, wherein the components are all universal standard components or components known by technical personnel in the art, and the structure and principle of the components are known by technical manuals or by conventional experimental methods.
During the use, at first, go up hull 2 and lower hull 1 and carry out sealing connection through sealing strip 12, then put into the waters with the hull, then start propeller 30 through base station control and promote the hull to move on the surface of water, then start second motor 24 and waterproof motor 10 and drive cutting blade 11 high-speed rotation and swing, thereby can cut the pasture and water on the surface of water, further be favorable to the hull to be applicable to and go on a plurality of waters, start suction pump 26 and open second solenoid valve 25 and to the right side injection water of baffle 22, thereby increase the weight on hull right side, thereby increase the effect that cutting blade 11 cut pasture and water, when needs examine the quality of water to the waters, start second solenoid valve 25, third solenoid valve 28 and suction pump 26 add into the weight that the hull increased the hull to the water in the hull, thereby can make the hull to go on the waters, thereby add the different water yield and adjust the degree of depth in the waters, start immersible pump 20 simultaneously and open first solenoid valve 19, thereby can discharge the water in lower hull 1 through drain pipe 18, thereby can control the total quality of water and adjust the hull depth in the hull in the aquatic at will, thereby can make things convenient for the water quality to move up and go on the water surface of water to and detect the normal water quality detection, the detection efficiency through the normal water quality detection module that goes on different depths 15, the different depths.
Claims (9)
1. The utility model provides a miniature water quality testing unmanned ship, includes hull (1) down, its characterized in that: the utility model discloses a waterproof control cabinet, including lower hull (1), upper hull (2), propeller (30) and lower hull (1) and upper hull (2) sealing connection, equal fixedly connected with is intake section of thick bamboo (3) on lower hull (1) and upper hull (2), two all install in intake section of thick bamboo (3), the inner chamber bottom fixedly connected with baffle (22) of lower hull (1), the inner chamber fixed mounting of lower hull (1) has suction pump (26), fixedly connected with connecting pipe (27) is gone up in suction pump (26), fixed intercommunication has first pipe (29) on connecting pipe (27), the right-hand member of first pipe (29) runs through the right side of baffle (22) in arranging baffle (22), fixed mounting has third electromagnetic valve (28) and second electromagnetic valve (25) respectively at both ends about the inner chamber of first pipe (29), waterproof control cabinet (13) is installed to the inner chamber of lower hull (1), install quality detection module (15), communication module (16) and control module (17) in waterproof control cabinet (13), the lower hull (1) the right side of motor shaft (24) runs through motor in lower hull (1), motor shaft bottom fixedly connected with connecting block (9) of second motor (24), slope installation has waterproof motor (10) on connecting block (9), fixedly connected with cutting blade (11) on the motor shaft of waterproof motor (10), water quality testing head (6) and suction pipe (8) are installed to the bottom of hull (1) down, suction pipe (8) run through the inner chamber and the fixed intercommunication of suction pump (26) of hull (1) down arranged in hull (1) down.
2. The small unmanned water quality testing ship according to claim 1, wherein: immersible pump (20) are installed to the inner chamber of hull (1) down, the lower part of immersible pump (20) links firmly to lead to there is type of falling T water pipe (21), the right-hand member and the fixed intercommunication of baffle (22) of type of falling T water pipe (21), the fixed intercommunication in top of immersible pump (20) has drain pipe (18), drain pipe (18) run through in hull (1) down and arrange the outside of hull (1) down in, first solenoid valve (19) are installed to the inner chamber of drain pipe (18).
3. The small unmanned water quality testing ship according to claim 1, characterized in that: and a cooling liquid (14) is injected into the interlayer of the waterproof control cabinet (13).
4. The small unmanned water quality testing ship according to claim 1, characterized in that: two equal fixedly connected with filter mantle (4) in the left end of a section of thick bamboo (3) of intaking, two the right-hand member of filter mantle (4) is the setting of hunch-up.
5. The small unmanned water quality testing ship according to claim 1, characterized in that: chlorinated rubber finish paint (5) is uniformly coated at the bottom of the lower ship body (1).
6. The small unmanned water quality testing ship according to claim 1, characterized in that: and waterproof covers (23) are fixedly mounted on the outer sides of the second motor (24) and the water suction pump (26).
7. The small unmanned water quality testing ship according to claim 1, wherein: the top of the lower hull (1) is fixedly connected with a sealing strip (12).
8. The small unmanned water quality testing ship according to claim 1, characterized in that: and a filter screen (7) is fixedly arranged at the bottom of the water suction pipe (8).
9. The small unmanned water quality testing ship according to claim 1, characterized in that: the waterproof control cabinet (13) is arranged in the middle of the bottom end of the inner cavity of the lower hull (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210082408.2A CN114537598B (en) | 2022-01-24 | 2022-01-24 | Unmanned ship of miniature water quality testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210082408.2A CN114537598B (en) | 2022-01-24 | 2022-01-24 | Unmanned ship of miniature water quality testing |
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| Publication Number | Publication Date |
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| CN114537598A CN114537598A (en) | 2022-05-27 |
| CN114537598B true CN114537598B (en) | 2023-02-28 |
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| CN115508153B (en) * | 2022-11-23 | 2023-03-24 | 江苏云洲智能科技有限公司 | Water surface robot for water quality detection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490873A (en) * | 2011-12-19 | 2012-06-13 | 王新法 | Water surface operating ship capable of moving up and down |
| KR101769407B1 (en) * | 2015-10-20 | 2017-08-18 | (주)에코코 | Boat for elimination of water grass |
| CN105947127B (en) * | 2016-06-23 | 2018-08-24 | 杭州古伽船舶科技有限公司 | The mating collecting ship of floating material automatic cleaning ship |
| CN206841690U (en) * | 2017-05-22 | 2018-01-05 | 天津海之星船艇科技有限公司 | A kind of partly latent unmanned boat buoyancy balance system |
| CN207466920U (en) * | 2017-10-27 | 2018-06-08 | 唐贵亮 | A kind of unmanned cleaning ship of river small-size multifunction |
| CN210639082U (en) * | 2019-06-11 | 2020-05-29 | 四川万江一泓环境科技有限责任公司 | Three-dimensional water quality monitoring system based on unmanned ship |
| CN212829003U (en) * | 2020-04-13 | 2021-03-30 | 长江水资源保护科学研究所 | Automatic underwater unmanned ship who inspects of river lake drain |
| CN211790342U (en) * | 2020-05-09 | 2020-10-27 | 陕西荣佳电气设备有限公司 | Automatic switch board of cooling |
| CN111619748A (en) * | 2020-05-20 | 2020-09-04 | 中国土木工程集团有限公司 | Two-step type device for removing tall aquatic weeds |
| CN111579747B (en) * | 2020-07-05 | 2022-03-01 | 北部湾大学 | Underwater robot for water quality detection |
| CN214066608U (en) * | 2020-10-22 | 2021-08-27 | 安徽省交通科学研究院 | Water environment sample collection device |
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