CN113508791B - Pointed pen cap snail trawl capable of being quickly caught - Google Patents
Pointed pen cap snail trawl capable of being quickly caught Download PDFInfo
- Publication number
- CN113508791B CN113508791B CN202110598477.4A CN202110598477A CN113508791B CN 113508791 B CN113508791 B CN 113508791B CN 202110598477 A CN202110598477 A CN 202110598477A CN 113508791 B CN113508791 B CN 113508791B
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- Prior art keywords
- trawl
- sliding
- net
- snail
- net rack
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- 241000237858 Gastropoda Species 0.000 title claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 76
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000002360 preparation method Methods 0.000 claims 1
- 241000196324 Embryophyta Species 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000004880 explosion Methods 0.000 description 4
- 208000034699 Vitreous floaters Diseases 0.000 description 3
- 241000894007 species Species 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000108402 Pteropoda Species 0.000 description 1
- 241000958507 Stropharia Species 0.000 description 1
- 241000270708 Testudinidae Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K73/00—Drawn nets
- A01K73/02—Trawling nets
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K75/00—Accessories for fishing nets; Details of fishing nets, e.g. structure
-
- 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
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Marine Sciences & Fisheries (AREA)
Abstract
The invention discloses a crayon cap snail trawl capable of quickly catching, which comprises: a net rack and a net body; one side of the net rack is connected with a net body, the other side of the net rack is provided with a slide way, a plurality of stop blocks are arranged in the slide way at intervals, a sliding area is formed between any two stop blocks, at least one traction mechanism is connected in any sliding area in a matching way, and the traction mechanism can move along the sliding area; a control mechanism is arranged at the center of the inner side of the net rack, a plurality of connecting rods are arranged at intervals outside the control mechanism, and the other end of any connecting rod abuts against the inner wall of the net rack; at least one sliding mechanism is sleeved on the outer side of each connecting rod, the sliding mechanisms can move along the length direction of the connecting rods, a plurality of bulges are arranged at intervals outside the sliding mechanisms, the size of a gap between any two connecting rods is adjusted in the moving process of the sliding mechanisms, the size of the gap between adjacent connecting rods is adjusted through the sliding mechanisms, and large marine organisms or marine weed sundries are filtered through adjusting the size of the gap.
Description
Technical Field
The invention relates to a quick fishing trawl, in particular to a sharp pen cap snail trawl capable of quickly fishing.
Background
The cap snail is in Pedionopsis, Hegillidae, Pteropoda, Tortoise, and cap snail. The species is largest in the genus Stropharia, this time the length of the shell, which occurs in the gulf of great Asia, ranges from 4 to 15 millimeters, and the width of the shell opening ranges from 0.3 to 1.3 millimeters. The wide-salt warm water species of the species is widely distributed in tropical and subtropical sea areas such as the Atlantic ocean, the Indian ocean, the Pacific ocean and the like, risks or adverse effects caused by explosion of the cap snails, ecological disasters possibly caused by the explosion, and influences on the safety of peripheral institution facilities, a large amount of explosion of the cap snails of the phytoplankton are caused, the clustering phenomenon is remarkable, the high peak density is as high as 5600/cubic meter, even under the promotion of stormy waves, a large amount of floating is accumulated on the shore, and the large amount of explosion of the cap snails of the phytoplankton, protozoa or bacteria in the seawater can explode, proliferate and highly aggregate.
Trawl is fished to traditional sharp cap snail through the haulage rope and all drags the trawl at the stern portion of fishing boat, when fishing boat redirecting or rivers redirecting, causes several haulage ropes to tie a knot easily, influences fishing of sharp cap snail, and current sharp cap snail is fished trawl net mouth in addition does not set up the device that changes the size, can't realize large-scale marine organism's prefilter, influences the efficiency of fishing of sharp cap snail.
Disclosure of Invention
The trawl overcomes the defects of the prior art, and provides the trawl capable of quickly catching the crayon cap snail.
In order to achieve the purpose, the invention adopts the technical scheme that: a crayon cap snail trawl that can catch fast includes: a net rack and a net body;
one side of the net rack is connected with a net body, the other side of the net rack is provided with a slide way, a plurality of stop blocks are arranged in the slide way at intervals, a sliding area is formed between any two stop blocks, at least one traction mechanism is connected in any sliding area in a matching way, and the traction mechanism can move along the sliding area;
a control mechanism is arranged at the center of the inner side of the net rack, a plurality of connecting rods are arranged at intervals outside the control mechanism, and the other end of any connecting rod abuts against the inner wall of the net rack;
at least one sliding mechanism is sleeved on the outer side of each connecting rod and can move along the length direction of each connecting rod, a plurality of bulges are arranged outside the sliding mechanisms at intervals, and the size of a gap between any two connecting rods is adjusted in the moving process of the sliding mechanisms.
In a preferred embodiment of the present invention, the control mechanism is used for controlling the sliding mechanism to move.
In a preferred embodiment of the invention, the number of the sliding mechanisms on any connecting rod is 2, and 2 sliding mechanisms slide along the connecting rod to adjust the distance, and can rotate.
In a preferred embodiment of the present invention, a plurality of the connecting rods are radially distributed.
In a preferred embodiment of the invention, a plurality of floats are arranged on one side of the net body along the length direction of the net body, and a plurality of sinkers are arranged on the other side of the net body.
In a preferred embodiment of the invention, the tail part of the net body is provided with an outlet end, and a necking rope is arranged outside the outlet end.
In a preferred embodiment of the present invention, the net frame has a circular ring structure.
In a preferred embodiment of the present invention, there are 4 blocks, and both sides of any one of the blocks are provided with a limiting member, and the limiting member is located in the slide way.
In a preferred embodiment of the present invention, the position-limiting member has an arc structure, and the arc degree of the position-limiting member is the same as the arc degree of the net rack at the corresponding position.
In a preferred embodiment of the invention, one end of the traction mechanism is provided with a hinge, and the traction mechanism is connected in the slideway in a matching way through the hinge.
The invention solves the defects in the background technology, and has the following beneficial effects:
(1) set up the slide through rack one side to in setting up the hua dao with 4 drive mechanism cooperations, each drive mechanism all slides in the sliding region that corresponds, mutual noninterference between each drive mechanism, when fishing ship redirecting or rivers redirecting, drive mechanism can not knot, guarantees catching of sharp cap spiral shell.
(2) The connecting rods are distributed in a divergent mode, the sliding mechanism is arranged on the outer side of each connecting rod, the size of a gap between every two adjacent connecting rods is adjusted through the sliding mechanism, and large-scale marine organisms or marine weed impurities are filtered by adjusting the size of the gap.
Drawings
The invention is further described below with reference to the drawings and examples;
FIG. 1 is a perspective view of a pointed cap snail fishing trawl in accordance with a preferred embodiment of the present invention;
FIG. 2 is a perspective view of a preferred embodiment of the grid of the present invention;
in the figure: 1. traction mechanism, 2, hinge piece, 3, slide way, 4, net rack, 5, stop block, 6, limiting piece, 7, float, 8, net body, 9, outlet end, 10, necking rope, 11, sinker, 12, control mechanism, 13, connecting rod, 14, protrusion, 15 and sliding mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations. As shown in FIGS. 1-2, the invention discloses a three-dimensional structure schematic diagram of a crayon cap snail trawl capable of quickly fishing;
specifically, a sharp cap spiral trawl that can catch fast includes: the net rack 4 and the net body 8;
one side of the net rack 4 is connected with a net body 8, the other side of the net rack 4 is provided with a slide way 3, a plurality of stop blocks 5 are arranged in the slide way 3 at intervals, a sliding area is formed between any two stop blocks 5, at least one traction mechanism 1 is connected in any sliding area in a matching way, and the traction mechanism 1 can move along the sliding area;
a control mechanism 12 is arranged at the center of the inner side of the net rack 4, a plurality of connecting rods 13 are arranged at intervals outside the control mechanism 12, and the other end of any connecting rod 13 abuts against the inner wall of the net rack 4;
at least one sliding mechanism 15 is sleeved on the outer side of the connecting rod 13, the sliding mechanism 15 can move along the length direction of the connecting rod 13, a plurality of bulges 14 are arranged outside the sliding mechanism 15 at intervals, and the size of a gap between any two connecting rods 13 is adjusted in the moving process of the sliding mechanism 15.
It should be noted that, one side of the net rack 4 is provided with the slideway 3, 4 traction mechanisms 1 are arranged in the Huadao in a matching way, each traction mechanism 1 slides in a corresponding sliding area, the traction mechanisms 1 are not interfered with each other, when the direction of the fishing boat is changed or the direction of water flow is changed, the traction mechanisms 1 cannot be knotted, and the fishing of the cap screw of the pen point is ensured.
According to an embodiment of the present invention, the control mechanism 12 is used to control the movement of the sliding mechanism 15.
According to the embodiment of the invention, 2 sliding mechanisms 15 are arranged on any connecting rod 13, 2 sliding mechanisms 15 slide along the connecting rod 13 to adjust the distance, and the sliding mechanisms 15 can rotate.
It should be noted that an air pump and a water pump are arranged inside the control mechanism, the sliding mechanism is a flexible part, the air pump and the water pump respectively control the internal inflation amount or the water filling amount of different sliding mechanisms, the position of the net rack in the water can be adjusted by controlling the internal inflation amount and the water filling amount of the sliding mechanism, the size of the sliding mechanism can also be adjusted, the distance between adjacent sliding mechanisms is further adjusted, large organisms are prevented from entering the trawl, catching of the cap snails with sharp pens is influenced, in addition, part of the sliding mechanisms are filled with water, the buoyancy of the sliding mechanisms which are prevented from being inflated is large, the net rack is completely positioned above the water surface, and catching of the cap snails with sharp pens cannot be carried out.
According to the embodiment of the invention, a plurality of connecting rods 13 are distributed in a radial shape.
The connecting rod is of a transparent tube structure, the lamp tubes are arranged inside the connecting rod, the connecting rod is used for luring the cap snails close to the mouth of the fishing trawl net through the brightness of the lamp tubes, then the trawl net is driven to move through the traction rod to accelerate the collection of the cap snails, the brightness of the lamp tubes inside different connecting rods can be the same or different, light sources of different brightness can be gradually changed, visual impact is formed, and the luring effect of the cap snails is improved.
According to the embodiment of the invention, one side of the net body 8 is provided with a plurality of floats 7 along the length direction of the net body 8, and the other side of the net body 8 is provided with a plurality of sinkers 11.
It should be noted that the float 7 and the sinker 11 can slide, the sinking depth of the net body 8 is adjusted by the positions of the float 7 and the sinker 11 on the net body 8 and the proportioning number of different positions of the net body 8, and adjusting the direction of the trawl in water, a plurality of floaters positioned at the upper part of the trawl are connected in series to a line, the plurality of floaters can slide, the buoyancy of the trawl net at different positions can be adjusted by adjusting the distance between the floats and adjusting the density of the floats at different positions of the trawl net, so as to adjust the depth and the angle of the trawl net submerged into the water, and similarly, the plurality of sinkers can also adjust the positions of the sinkers at the trawl net and the distribution distances among the sinkers, through sinker and floater cooperation, more nimble adjustment trawl net mouth gets into the angle behind the aquatic, catches sharp pen cap spiral shell more efficiently.
According to the embodiment of the invention, the tail part of the net body 8 is provided with an outlet end 9, and the outer side of the outlet end 9 is provided with a necking rope 10.
According to the embodiment of the invention, the net rack 4 has a circular ring structure.
According to the embodiment of the invention, the number of the stop blocks 5 is 4, the limiting parts 6 are arranged on two sides of any one stop block 5, and the limiting parts 6 are positioned in the slide ways 3.
It should be noted that, cut apart into 4 different regions through dog 5 with slide 3, the arc length in 4 regions can be the same, also can be different, 4 regional sizes can be adjusted according to haulage rope winding condition in the in-service use process, the dog is connected on the slide inner wall with the mode of inlaying the joint, the dog can be followed sliding movement and adjusted 4 regional sizes, set up drive mechanism 1 in the different regions, the ship of catching removes the in-process of catching, when changing because of the wind direction, drive mechanism 1 swings in step, guarantee the directionality of trawl.
According to the embodiment of the invention, the limiting part 6 is of an arc structure, and the radian of the limiting part 6 is the same as that of the net rack 4 at the corresponding position.
According to the embodiment of the invention, one end of the traction mechanism 1 is provided with a hinge part 2, and the traction mechanism 1 is connected in the slideway 3 in a matching way through the hinge part 2.
The connecting rods 13 distributed in a divergent shape are arranged, the sliding mechanism 15 is arranged on the outer side of each connecting rod 13, the size of a gap between every two adjacent connecting rods 13 is adjusted through the sliding mechanism 15, and large-scale marine organisms or marine weed impurities are filtered by adjusting the size of the gap.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A sharp pen cap spiral trawl that can catch fast includes: a net rack and a net body; it is characterized in that the preparation method is characterized in that,
one side of the net rack is connected with a net body, the other side of the net rack is provided with a slide way, a plurality of stop blocks are arranged in the slide way at intervals, a sliding area is formed between any two stop blocks, at least one traction mechanism is connected in any sliding area in a matching way, and the traction mechanism can move along the sliding area;
a control mechanism is arranged at the center of the inner side of the net rack, a plurality of connecting rods are arranged at intervals outside the control mechanism, and the other end of any connecting rod abuts against the inner wall of the net rack;
at least one sliding mechanism is sleeved on the outer side of each connecting rod and can move along the length direction of each connecting rod, a plurality of bulges are arranged outside the sliding mechanisms at intervals, and the size of a gap between any two connecting rods is adjusted in the moving process of the sliding mechanisms.
2. The crayon cap snail trawl capable of fast fishing according to claim 1, characterized in that: the control mechanism is used for controlling the sliding mechanism to move.
3. The crayon cap snail trawl capable of fast fishing according to claim 1, characterized in that: the number of the sliding mechanisms on any connecting rod is 2, the 2 sliding mechanisms slide along the connecting rods to adjust the distance, and the sliding mechanisms can rotate.
4. The crayon cap snail trawl capable of fast fishing according to claim 1, characterized in that: a plurality of the connecting rods are distributed in a radial shape.
5. The crayon cap snail trawl capable of fast fishing according to claim 1, characterized in that: one side of the net body is provided with a plurality of floats along the length direction of the net body, and the other side of the net body is provided with a plurality of sinkers.
6. The crayon cap snail trawl capable of fast fishing according to claim 1, characterized in that: the net body tail is provided with an outlet end, and a necking rope is arranged on the outer side of the outlet end.
7. The crayon cap snail trawl capable of fast fishing according to claim 1, characterized in that: the net rack is of a circular ring structure.
8. The crayon cap snail trawl capable of fast fishing according to claim 1, characterized in that: the dog is 4, and arbitrary dog both sides all are provided with the locating part, the locating part is located in the slide.
9. The crayon cap snail trawl capable of fast fishing according to claim 8, characterized in that: the locating part is the arc structure, the locating part radian is the same with the radian of the rack of corresponding position department.
10. The crayon cap snail trawl capable of fast fishing according to claim 1, characterized in that: one end of the traction mechanism is provided with an articulated piece, and the traction mechanism is connected in the slide way in a matching way through the articulated piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110598477.4A CN113508791B (en) | 2021-05-31 | 2021-05-31 | Pointed pen cap snail trawl capable of being quickly caught |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110598477.4A CN113508791B (en) | 2021-05-31 | 2021-05-31 | Pointed pen cap snail trawl capable of being quickly caught |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113508791A CN113508791A (en) | 2021-10-19 |
| CN113508791B true CN113508791B (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110598477.4A Expired - Fee Related CN113508791B (en) | 2021-05-31 | 2021-05-31 | Pointed pen cap snail trawl capable of being quickly caught |
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| Country | Link |
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| CN (1) | CN113508791B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3908291A (en) * | 1973-01-23 | 1975-09-30 | Yoshio Masuda | Apparatus for preventing tangle of endless rope in mining or sea life gathering |
| US5444933A (en) * | 1991-11-12 | 1995-08-29 | Kinoshita; Hiromi | Trawl fishing gear and trawl fishing method |
| CN203840980U (en) * | 2014-03-31 | 2014-09-24 | 中国水产科学研究院南海水产研究所 | Offshore bottom layer fish sample collector |
| CN204350897U (en) * | 2014-11-28 | 2015-05-27 | 浙江海洋学院 | A kind of trawlnet flexibility expands net arrangement |
| CN107466979A (en) * | 2017-08-22 | 2017-12-15 | 张波 | A kind of fishing net of band elasticity power-assisted bar |
| CN209788227U (en) * | 2019-02-26 | 2019-12-17 | 孙晓晨 | Flying disc throwing-out type fishing net |
| CN111011316A (en) * | 2019-11-25 | 2020-04-17 | 浙江海洋大学 | Euphausia superba continuous fishing device for fishing boat |
| CN111802339A (en) * | 2020-08-12 | 2020-10-23 | 南安市荣华机械科技有限公司 | Fishing tool |
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| CN112806330A (en) * | 2021-02-26 | 2021-05-18 | 张宇 | Portable folding fishing net |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4848898B2 (en) * | 2006-08-31 | 2011-12-28 | 国立大学法人東京海洋大学 | Troll net layered collection device |
-
2021
- 2021-05-31 CN CN202110598477.4A patent/CN113508791B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3908291A (en) * | 1973-01-23 | 1975-09-30 | Yoshio Masuda | Apparatus for preventing tangle of endless rope in mining or sea life gathering |
| US5444933A (en) * | 1991-11-12 | 1995-08-29 | Kinoshita; Hiromi | Trawl fishing gear and trawl fishing method |
| CN203840980U (en) * | 2014-03-31 | 2014-09-24 | 中国水产科学研究院南海水产研究所 | Offshore bottom layer fish sample collector |
| CN204350897U (en) * | 2014-11-28 | 2015-05-27 | 浙江海洋学院 | A kind of trawlnet flexibility expands net arrangement |
| CN107466979A (en) * | 2017-08-22 | 2017-12-15 | 张波 | A kind of fishing net of band elasticity power-assisted bar |
| CN209788227U (en) * | 2019-02-26 | 2019-12-17 | 孙晓晨 | Flying disc throwing-out type fishing net |
| CN111011316A (en) * | 2019-11-25 | 2020-04-17 | 浙江海洋大学 | Euphausia superba continuous fishing device for fishing boat |
| CN111802339A (en) * | 2020-08-12 | 2020-10-23 | 南安市荣华机械科技有限公司 | Fishing tool |
| CN111972360A (en) * | 2020-09-01 | 2020-11-24 | 中国水产科学研究院南海水产研究所 | Special catching and expanding net for acete chinensis |
| CN112806330A (en) * | 2021-02-26 | 2021-05-18 | 张宇 | Portable folding fishing net |
Also Published As
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| CN113508791A (en) | 2021-10-19 |
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