CN111676931B - Fishing device and method capable of separating plastic garbage and water-floating plants - Google Patents
Fishing device and method capable of separating plastic garbage and water-floating plants Download PDFInfo
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- CN111676931B CN111676931B CN202010569617.0A CN202010569617A CN111676931B CN 111676931 B CN111676931 B CN 111676931B CN 202010569617 A CN202010569617 A CN 202010569617A CN 111676931 B CN111676931 B CN 111676931B
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/10—Devices for removing the material from the surface
- E02B15/104—Conveyors; Paddle wheels; Endless belts
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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
- B63B35/32—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for collecting pollution from open water
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Civil Engineering (AREA)
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- Harvesting Machines For Specific Crops (AREA)
Abstract
The invention provides a fishing device and a method capable of separating plastic garbage and floating plants, wherein the fishing device comprises a hull, the hull is provided with the fishing device, the fishing device comprises a shell, a first driving roller and a first driven roller are connected in the shell, and a first filter screen crawler belt is hung on the first driving roller and the first driven roller; the left end of the shell is also rotatably connected with a poking wheel roller; a second filter screen crawler belt is further arranged below the first filter screen crawler belt, and a second driving roller and a second driven roller are respectively arranged at two ends of the second filter screen crawler belt; the first driving roller is connected with a second motor, and the second driving roller is connected with a first motor; a blade is arranged at the bottom of the left end of the shell; a fixing block is arranged between the first filter screen crawler belt and the second filter screen crawler belt and is connected with a front push plate. The invention has compact structure, can salvage and separate the plastic garbage, the duckweed and the rooted aquatic weeds at the same time, has wide application range, greatly improves the salvage efficiency, saves the subsequent manual sorting cost, and saves time and labor.
Description
Technical Field
The invention relates to the technical field of fishing devices, in particular to a fishing device and method capable of separating plastic garbage and water-floating plants.
Background
Along with the rapid development of economy in China, the living standard of people's materials is greatly improved, and various wastes are generated in daily life and production of the public. The social and humane landscape and the natural environment are seriously damaged by various kinds of garbage with complex sources and various kinds, and the environment cost of tragic work is paid for the wastes. It is worth noting that the pollution of water garbage, which is an environmental pollution of water area and is not considered in the past, is more and more serious. The generation of these wastes is caused by rapid urbanization and industrialization process, development of tourism industry, thin environmental awareness of people and the like, so that the pollution of floating garbage in rivers, lakes and ports and even offshore is increasingly serious. The pollution of a large amount of water surface garbage not only destroys domestic water sources, but also influences the urban environment, and the pollution treatment and control of the water surface garbage are urgently needed to be enhanced.
In addition, after the wastewater containing a large amount of nitrogen and phosphorus in the domestic and industrial and agricultural production enters the water body, the water body is eutrophicated, the water floating plants in the water body grow excessively, and in order to ensure the water surface to be clean, the water floating plants are mostly salvaged by adopting a salvage device.
Most of cleaning and recovering devices put on the market at present salvage water-floating plants and plastic garbage floating on water together, and then manually pick out the plastic garbage from the recovered duckweeds at the later stage, so that the mode wastes manpower resources, and the efficiency is lower; in addition, the water plants comprise duckweeds and a plurality of types of rooted aquatic plants, most of the devices can only salvage the duckweeds, and the rooted aquatic plants are inconvenient to salvage and have large limitations due to the existence of roots.
Disclosure of Invention
In order to solve the problems in the prior art, a fishing device and a method capable of separating plastic garbage and water-floating plants are provided.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a fishing device capable of separating plastic garbage and water-floating plants, which comprises a ship body, wherein the ship body is provided with the fishing device, the fishing device comprises a shell connected with the ship body, a first driving roller and a first driven roller are rotationally connected in the shell, and a first filter screen crawler belt which is obliquely arranged is hung on the first driving roller and the first driven roller in a matching manner; the left end of the shell is also rotatably connected with a thumb wheel roller, and the thumb wheel roller is connected with the first driven roller through a chain transmission mechanism; a second filter screen crawler belt which is obliquely arranged is further arranged below the first filter screen crawler belt, and a second driving roller and a second driven roller are respectively arranged at two ends of the second filter screen crawler belt; the first driving roller is connected with a second motor, and the second driving roller is connected with a first motor; the aperture of the first filter screen crawler belt is larger than that of the second filter screen crawler belt; a blade for cutting the root of the rooted aquatic plant is arranged at the bottom of the left end of the shell; a fixing block is arranged between the first filter screen crawler and the second filter screen crawler and connected with the shell, and a front push plate is connected with the fixing block.
Preferably, a space for accommodating the aquatic plants is formed between the front push plate and the blade, and the left end of the front push plate extends out of the blade to form an eave structure.
Preferably, a transition plate is arranged below the first filter screen crawler belt and connected with the shell, and the transition plate is obliquely arranged.
Preferably, the bottom of the shell is connected with an upper nipper and a lower nipper, and the blade is clamped between the upper nipper and the lower nipper.
The invention also provides a salvaging method capable of separating plastic garbage and water-floating plants, which comprises the following steps:
s1, when in use, the first motor and the second motor are started, and the first filter screen crawler belt and the second filter screen crawler belt start to rotate; when the first filter screen crawler rotates, the first filter screen crawler drives the shifting wheel roller to rotate through the chain transmission mechanism, so that the plastic product garbage and the duckweed are scattered;
s2, because the first filter screen track and the second filter screen track are obliquely arranged, in the moving process of the ship body, the scattered plastic product garbage and the duckweeds are firstly separated by the first filter screen track, and the duckweeds fall onto the second filter screen track through the aperture of the first filter screen track and are transported to the ship body by the second filter screen track; the plastic products are intercepted on the first filter screen track and transported to the ship body due to the large diameter;
s3, when the boat body moves, the water plants with roots are pushed by the front push plate to be bent, so that the water plants completely enter the lower part of the front push plate, then the boat body continues to move, the blades cut off the roots of the water plants with roots, and the water plants with roots are conveyed to the boat body to be stored under the action of the second filter screen crawler belt.
S4, separating and collecting the plastic garbage, the duckweed and the rooted aquatic weeds on the ship body along with the continuous movement of the ship body.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention has compact and simple integral structure, is convenient to install, can meet the use under complex conditions, can separate and salvage plastic garbage, duckweed and rooted aquatic weeds simultaneously, has wide application range, greatly improves the salvage efficiency, saves the subsequent manual sorting cost, and saves time and labor;
2. according to the invention, the first filter screen crawler belt and the second filter screen crawler belt are arranged, the first filter screen crawler belt is utilized to realize the separation of duckweeds and plastic products, the second filter screen crawler belt is utilized to convey duckweeds, and finally the separation and fishing of the duckweeds and the plastic products are realized;
3. according to the invention, the blade and the front push plate are arranged, the front push plate extends out of the blade to form an eave structure, when the water grass cutting machine is used, the front push plate is firstly utilized to bend the water grass with roots and gather the water grass with roots below the front push plate, then the blade is used for cutting the water grass with roots, and the cut water grass with roots is conveyed to a ship body along with duckweeds through the second filter screen crawler belt, so that the effect is remarkable.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic structural view of the fishing device in fig. 1.
Fig. 3 is a schematic view of a partially enlarged structure of fig. 2.
Fig. 4 is a side view of the fishing device.
Fig. 5 is a partially enlarged view of fig. 4.
Description of the reference numerals:
1. a cab 2, a first driving roller 3, a shell 4, a first transition roller 5, a thumb wheel roller 6, a large chain wheel 7, a first driven roller 8, a small chain wheel 9, a chain 10, a fixed block 11, a front push plate 12, a second driven roller 13, a first filter screen crawler 14, an upper nipper 15, a blade 16, a lower nipper 17, an air bag 18, a ship body 19, a tire 20 and a power shaft 21, the device comprises a propeller 22, a transition plate 23, a pin shaft 24, a hook 25, a second transition roller 26, a second driving roller 27, a second filter screen crawler belt 28, a large bearing cover 29, a large bearing 30, a large screw 31, a small bearing cover 32, a small screw 33, a small bearing 34, a first reinforcing rib 35, a first supporting plate 36, a bolt 37, a first motor 38, a second motor 39, a second supporting plate 40 and a second reinforcing rib.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Example one
As shown in fig. 1-5, the fishing device for separating plastic garbage from floating plants according to the present embodiment includes a hull 18, a cab 1 is disposed on the hull 18, the hull 18 is driven by a driving motor, a propeller 21 is connected to a power shaft 20 of the driving motor, and tires 19 are disposed on an outer wall of the hull 18 to increase buoyancy and protect the hull.
A fishing device is arranged on the ship body 18, the fishing device comprises a shell 3 connected with the ship body 18, a first driving roller 2 and a first driven roller 7 are connected in the shell 3 through a large bearing 29, a large bearing cover 28 is arranged at the end part of the large bearing 29, and the large bearing cover 28 is fixed on the shell 3 through a large screw 30; a first filter screen crawler belt 13 which is obliquely arranged is hung on the first driving roller 2 and the first driven roller 7 in a matching way, the aperture of the first filter screen crawler belt 13 allows water-borne organisms to pass through, but plastic products cannot pass through; the left end of the shell 3 is also rotatably connected with a dial roller 5, and the dial roller 5 is connected with a first driven roller 7 through a chain transmission mechanism; wherein, the chain transmission mechanism comprises a small chain wheel 8, and the small chain wheel 8 is connected with the first driven roller 7; and a large chain wheel 6, wherein the large chain wheel 6 is connected with the poking wheel roller 5, and a chain 9 is connected between the large chain wheel 6 and the small chain wheel 8.
The poking wheel roller 5 is used for scattering plastic garbage floating on the water surface and piled small phytoplankton so as to better separate the plastic garbage from the phytoplankton.
A second filter screen crawler 27 which is obliquely arranged is further arranged below the first filter screen crawler 13, a second driving roller 26 and a second driven roller 12 are respectively arranged at two ends of the second filter screen crawler 27, and the second driving roller 26 and the second driven roller 12 are both rotationally connected to the shell 3; the first driving roller 2 is connected with a second motor 38, the bottom of the second motor 38 is connected with a second supporting plate 39, the second supporting plate 39 is welded with the shell 3, and a second reinforcing rib 40 is connected between the second supporting plate 39 and the shell 3; the second driving roller 26 is connected with a first motor 37, the first motor 37 is connected with a first supporting plate 35 through a bolt 36, the first supporting plate 35 is welded on the shell 3, and a first reinforcing rib 34 is connected between the first supporting plate 35 and the shell 3; the first screen track 13 has a larger aperture than the second screen track 27, and the second screen track 27 has an aperture that does not allow the passage of aquatic life.
A transition plate 22 is arranged below the first filter screen crawler 13, a pin shaft 23 is connected to the shell 3 through a small bearing 33, a small bearing cover 31 is arranged at the end part of the small bearing 33, and the small bearing cover 31 is fixedly connected to the shell 3 through a small screw 32; the end part of the transition plate 22 is connected with a hook 24, the hook 24 is hung on a pin shaft 23, the transition plate 22 can rotate along the pin shaft 23, and the transition plate 22 is obliquely arranged, so that the plastic products conveyed by the first filter screen crawler 13 can be conveyed to the other side of the ship body 18 through the transition plate 22 for storage.
For better support, a first transition roller 4 is provided on the housing 3 for supporting the first screen track 13, and a second transition roller 25 is provided on the housing 3 for supporting the second screen track 27.
The invention also provides a salvaging method capable of separating the plastic products and the duckweeds, which comprises the following steps:
s1, when in use, the first motor 37 and the second motor 38 are started, and the first filter screen crawler belt 13 and the second filter screen crawler belt 27 start to rotate; when the first filter screen crawler belt 13 rotates, the poking wheel roller 5 is driven to rotate through the chain transmission mechanism, so that the plastic product garbage and the duckweeds are scattered;
s2, because the first filter screen crawler belt 13 and the second filter screen crawler belt 27 are obliquely arranged, in the moving process of the ship body 18, the scattered plastic product garbage and duckweeds are separated by the first filter screen crawler belt 13, and the duckweeds fall onto the second filter screen crawler belt 27 through the aperture of the first filter screen crawler belt 13 and are transported to the ship body 18 by the second filter screen crawler belt 27; the plastic products, due to their larger diameter, are trapped on the first screen track 13 and transported to the hull 18;
s3, separating and collecting the plastic products and the duckweeds on the ship body 18 along with the continuous movement of the ship body 18.
According to the invention, the first filter screen crawler belt 13 and the second filter screen crawler belt 27 are arranged, the separation of duckweeds and plastic products is realized by utilizing the first filter screen crawler belt 13, and the separation and fishing of the duckweeds are finally realized by utilizing the second filter screen crawler belt 27 to convey the duckweeds; the invention has compact and simple integral structure, is convenient to install, can greatly improve the salvage efficiency, saves the subsequent manual sorting cost, and saves time and labor.
Example two
On the basis of the first embodiment, considering that not only duckweeds but also rooted aquatic plants exist in the water body, and the rooted aquatic plants are inconvenient to collect due to the existence of roots, the inventor makes a further improvement, wherein a blade 15 is arranged at the bottom of the left end of the shell 3, and the blade 15 is used for cutting underwater rooted aquatic plants to cut off the roots; be provided with fixed block 10 between first filter screen track 13 and second filter screen track 27, fixed block 10 welds with casing 3 mutually, and fixed block 10 is connected with preceding push pedal 11, forms a space that is used for holding root pasture and water between preceding push pedal 11 and the blade 15, and preceding push pedal 11 left end extends outside blade 15, forms the structure of eaves.
In order to facilitate the replacement of the blade 15, the bottom of the housing 3 is connected with an upper nipper 14 and a lower nipper 16, the upper nipper 14 and the lower nipper 16 are used for clamping the blade 15, and when the blade is fixed, the upper nipper 14 and the lower nipper 16 can be fixedly clamped in a conventional bolting mode.
Four air bags 17 are arranged at the bottom of the shell 3, and are used for improving the buoyancy of the whole device and increasing the load capacity when the device works.
The embodiment also provides a salvaging method capable of separating plastic products, duckweeds and rooted aquatic weeds, which comprises the following steps:
s1, when in use, the first motor 37 and the second motor 38 are started, and the first filter screen crawler belt 13 and the second filter screen crawler belt 27 start to rotate; when the first filter screen crawler belt 13 rotates, the poking wheel roller 5 is driven to rotate through the chain transmission mechanism, so that the plastic product garbage and the duckweeds are scattered;
s2, because the first filter screen crawler belt 13 and the second filter screen crawler belt 27 are obliquely arranged, in the moving process of the ship body 18, the scattered plastic product garbage and duckweeds are separated by the first filter screen crawler belt 13, and the duckweeds fall onto the second filter screen crawler belt 27 through the aperture of the first filter screen crawler belt 13 and are transported to the ship body 18 by the second filter screen crawler belt 27; the plastic products, due to their larger diameter, are trapped on the first screen track 13 and transported to the hull 18;
s3, simultaneously, when the boat body 18 moves, the root aquatic weeds are pushed by the front push plate 11 to be bent, so that the aquatic weeds all enter the lower part of the front push plate 11, then the boat body 18 continues to move, the blade 15 cuts off the root of the root aquatic weeds, and the root aquatic weeds are conveyed to the boat body 18 to be stored under the action of the second filter screen crawler belt 27;
s4, separating and collecting the plastic garbage, duckweed and rooted aquatic weeds on the ship body 18 along with the continuous movement of the ship body 18.
According to the invention, the blade and the front push plate are arranged, the front push plate extends out of the blade to form an eave structure, when the boat-shaped cutting boat is used, the front push plate is firstly utilized to bend the rooted waterweeds and fold the rooted waterweeds below the front push plate, then the blade is utilized to cut the rooted waterweeds, and the cut rooted waterweeds are transported to a boat body along with duckweeds through the second filter screen crawler belt, so that the effect is remarkable. Overall structure is compact simple, and the installation of being convenient for can satisfy the use of complex condition, can separate simultaneously and salvage plastic refuse, duckweed and have a pasture and water, and application range is wide, improves salvage efficiency greatly, has saved follow-up manpower letter sorting cost, labour saving and time saving.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (2)
1. A fishing method for separable plastic garbage and water-floating plants adopts a fishing device for separable plastic garbage and water-floating plants, and comprises a ship body, wherein the ship body is provided with the fishing device, the fishing device comprises a shell connected with the ship body, a first driving roller and a first driven roller are rotationally connected in the shell, and a first filter screen crawler belt which is obliquely arranged is hung on the first driving roller and the first driven roller in a matching manner; the left end of the shell is also rotatably connected with a thumb wheel roller, and the thumb wheel roller is connected with the first driven roller through a chain transmission mechanism; a second filter screen crawler belt which is obliquely arranged is further arranged below the first filter screen crawler belt, and a second driving roller and a second driven roller are respectively arranged at two ends of the second filter screen crawler belt; the first driving roller is connected with a second motor, and the second driving roller is connected with a first motor; the aperture of the first screen track is larger than that of the second screen track; is characterized in that a blade for cutting the root of the rooted aquatic plant is arranged at the bottom of the left end of the shell; a fixed block is arranged between the first filter screen crawler and the second filter screen crawler, the fixed block is connected with the shell, and the fixed block is connected with a front push plate; a space for containing the aquatic weeds is formed between the front push plate and the blade, and the left end of the front push plate extends out of the blade to form an eave structure; the bottom of the shell is connected with an upper nipper and a lower nipper, and the blade is clamped between the upper nipper and the lower nipper; the method comprises the following steps:
s1, when in use, the first motor and the second motor are started, and the first filter screen crawler belt and the second filter screen crawler belt start to rotate; when the first filter screen crawler rotates, the first filter screen crawler drives the shifting wheel roller to rotate through the chain transmission mechanism, so that the plastic product garbage and the duckweed are scattered;
s2, because the first filter screen track and the second filter screen track are obliquely arranged, in the moving process of the ship body, the scattered plastic product garbage and the duckweeds are firstly separated by the first filter screen track, and the duckweeds fall onto the second filter screen track through the aperture of the first filter screen track and are transported to the ship body by the second filter screen track; the plastic products are intercepted on the first filter screen track and transported to the ship body due to the large diameter;
s3, simultaneously, when the boat body moves, the water plants with roots are pushed by the front push plate to be bent, so that the water plants all enter the lower part of the front push plate, then the boat body continues to move, the blades cut off the roots of the water plants with roots, and the water plants with roots are conveyed to the boat body to be stored under the action of the second filter screen crawler belt;
and S4, separating and collecting the plastic wastes, the duckweed and the rooted aquatic weeds on the ship body along with the continuous movement of the ship body.
2. The method for salvaging separable plastic garbage and water-floating plants as claimed in claim 1, wherein a transition plate is arranged below the first screen track, the transition plate is connected with the housing, and the transition plate is arranged in an inclined manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010569617.0A CN111676931B (en) | 2020-06-20 | 2020-06-20 | Fishing device and method capable of separating plastic garbage and water-floating plants |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010569617.0A CN111676931B (en) | 2020-06-20 | 2020-06-20 | Fishing device and method capable of separating plastic garbage and water-floating plants |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111676931A CN111676931A (en) | 2020-09-18 |
| CN111676931B true CN111676931B (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010569617.0A Expired - Fee Related CN111676931B (en) | 2020-06-20 | 2020-06-20 | Fishing device and method capable of separating plastic garbage and water-floating plants |
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| Country | Link |
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| CN (1) | CN111676931B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114931123B (en) * | 2022-05-31 | 2023-10-13 | 常州华溪渔业有限公司 | Floating plant salvaging equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206552219U (en) * | 2017-03-06 | 2017-10-13 | 邓优超 | A kind of refuse fishing vessel |
| CN207237464U (en) * | 2017-09-25 | 2018-04-17 | 青岛科技大学 | A kind of double medium filtration enteromorpha prolifera collection device |
| CN207911372U (en) * | 2018-02-10 | 2018-09-28 | 南县伟业机械制造有限公司 | A kind of engineering machinery for mowing under water |
| CN109653181A (en) * | 2019-01-24 | 2019-04-19 | 温州华美环境工程有限公司 | River garbage floating cleaner |
| CN209368800U (en) * | 2018-12-05 | 2019-09-10 | 南京赛沃夫海洋科技有限公司 | A kind of junk-free ship with classification feature |
-
2020
- 2020-06-20 CN CN202010569617.0A patent/CN111676931B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206552219U (en) * | 2017-03-06 | 2017-10-13 | 邓优超 | A kind of refuse fishing vessel |
| CN207237464U (en) * | 2017-09-25 | 2018-04-17 | 青岛科技大学 | A kind of double medium filtration enteromorpha prolifera collection device |
| CN207911372U (en) * | 2018-02-10 | 2018-09-28 | 南县伟业机械制造有限公司 | A kind of engineering machinery for mowing under water |
| CN209368800U (en) * | 2018-12-05 | 2019-09-10 | 南京赛沃夫海洋科技有限公司 | A kind of junk-free ship with classification feature |
| CN109653181A (en) * | 2019-01-24 | 2019-04-19 | 温州华美环境工程有限公司 | River garbage floating cleaner |
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| CN111676931A (en) | 2020-09-18 |
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