CN114766443B - Sampling boat for fish living body fishing and resource density estimation - Google Patents

Sampling boat for fish living body fishing and resource density estimation Download PDF

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Publication number
CN114766443B
CN114766443B CN202210732323.4A CN202210732323A CN114766443B CN 114766443 B CN114766443 B CN 114766443B CN 202210732323 A CN202210732323 A CN 202210732323A CN 114766443 B CN114766443 B CN 114766443B
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CN
China
Prior art keywords
force
cavity
block
driven
fishing
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202210732323.4A
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Chinese (zh)
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CN114766443A (en
Inventor
丛旭日
任一平
王俊鹏
李秀启
董贯仓
师吉华
刘超
朱士文
冷春梅
客涵
高云芳
王亚楠
孙鲁峰
王晴晴
薛莹
张崇良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ocean University of China
Shandong Freshwater Fisheries Research Institute
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Ocean University of China
Shandong Freshwater Fisheries Research Institute
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Application filed by Ocean University of China, Shandong Freshwater Fisheries Research Institute filed Critical Ocean University of China
Priority to CN202210732323.4A priority Critical patent/CN114766443B/en
Publication of CN114766443A publication Critical patent/CN114766443A/en
Application granted granted Critical
Publication of CN114766443B publication Critical patent/CN114766443B/en
Expired - Fee Related legal-status Critical Current
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K73/00Drawn nets
    • A01K73/02Trawling nets
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K75/00Accessories for fishing nets; Details of fishing nets, e.g. structure
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Marine Sciences & Fisheries (AREA)

Abstract

The invention relates to the technical field of ships and discloses a sampling ship for fish living body fishing and resource density estimation, which comprises a ship body, wherein a driving part is rotatably arranged at a cabin of the ship body, a telescopic cavity is formed in the driving part, a force application block is movably arranged in an inner cavity of the telescopic cavity, an elastic part is arranged between the telescopic cavity and a piston end of the force application block, a driven part is arranged at the right side of the driving part, a sliding cavity is formed in the driven part, a force bearing block is fixedly arranged on the inner wall of the sliding cavity, and a rope is fixedly arranged on the outer side of the driven part. According to the fishing net retracting device, the driven part and the driving part are arranged, when the resistance of the fishing net and the objects in the fishing net is larger than the elastic force of the elastic part, the fishing net retracting operation is stopped, so that the probability of damage of the fishing net retracting device is reduced, and then when the resistance of the fishing net and the objects in the fishing net is smaller than the elastic force of the elastic part, the driven part is driven by the force application block again to perform the fishing net retracting operation, so that the fishing operation is prevented from being invalid, and the sampling efficiency is prevented from being influenced.

Description

Sampling boat for fish living body fishing and resource density estimation
Technical Field
The invention relates to the technical field of ships, in particular to a sampling ship for fish living body fishing and resource density estimation.
Background
In the present society, in order to estimate the resource density of fish in water, a sampling boat is usually used to catch the fish in a water area under a single condition, and then the resource density of the whole water area is estimated, so that corresponding resource management strategies and measures are conveniently taken.
Present sampling boat is at the during operation, put into the aquatic through with the fishing net, and connect hull and fishing net through the rope, afterwards, the sampling boat traveles forward, make the fishing net receive the tension of aquatic, and then go deep into aquatic and launch, then the sampling boat drives the fishing net forward movement of launching, and then the fishing net is gone into to the fish pocket in the waters, afterwards, through net collecting device rolling rope, make the fishing net withdrawed, thereby conveniently collect fish, but at above-mentioned in-process, when the fishing net withdraws, can pocket into more fish or aquatic showy object, and then lead to the resistance crescent to net collecting device of fishing net, and net collecting device's traction force is unchangeable, make when the resistance of fishing net is greater than collecting device's traction force, net collecting device takes place the damage easily, and then influence the efficiency of sampling operation.
Disclosure of Invention
Aiming at the defects of the existing sampling boat in the use process in the background technology, the invention provides the sampling boat for fish living body fishing and resource density estimation, which has the advantages of reducing the probability of damage of a net collecting device and improving the sampling operation efficiency, and solves the technical problems in the background technology.
The invention provides the following technical scheme: a sampling ship for fishing fish living bodies and estimating resource density comprises a ship body, wherein the tail part of the ship body is rotatably provided with contact wheels for assisting net collection, a cabin of the ship body is rotatably provided with a driving part, the driving part is driven by a power mechanism, telescopic cavities which are symmetrically arranged up and down are formed in the rod body of the driving part, a force application block is slidably arranged in the inner cavity of each telescopic cavity, the outer end of the force application block extends out of each telescopic cavity, an elastic part is arranged in the cavity of each telescopic cavity, one end of each elastic part is connected with the piston end of each force application block, the other end of each elastic part is connected with the bottom surface of each telescopic cavity, the elasticity of each elastic part is equal to the effective traction force of the power mechanism, a driven part is arranged at the right side of the driving part, a sliding cavity is formed in the rod body of the driven part, and the rod body of the driving part is movably connected with the sliding cavity, the inner wall fixed mounting in sliding chamber has the atress piece, the driving part can pass through application of force piece and the contact of atress piece, and then drives passive piece corotation to receive the net operation, the contact surface of application of force piece and atress piece is the cambered surface setting, the lateral surface fixed mounting of the passive body of rod has the rope, the other end and the fishing net of rope are connected.
Preferably, the cavity body positioned at the inner side of the force application block in the telescopic cavity is filled with gas, the center position inside the driving part rod body is provided with a gas guide hole, and branch gas holes of the gas guide hole are respectively communicated with the symmetrical telescopic cavity.
Preferably, the position that the inside of the driving part body of rod is located air guide hole right side is provided with a clamping groove that is square structure setting, the total air guide hole and the clamping groove intercommunication of air guide hole, movable joint has the friction piece that can rub with sliding cavity lateral wall in the clamping groove.
Preferably, the inner wall of the sliding cavity is equidistantly and fixedly provided with force relieving blocks in the forward rotation direction of the force bearing block, and the inner side surfaces between the force relieving blocks are in smooth transition.
Preferably, the volume of the force buffering block is sequentially increased along the positive rotation direction of the force bearing block, and the force application block can be in contact with the inner side face of the force buffering block with the minimum volume.
The invention has the following beneficial effects:
1. according to the invention, through the arrangement of the driven part and the driving part, when the net collecting operation is carried out and the resistance of the fishing net and objects in the net is greater than the elastic force of the elastic part, the force applying block is extruded by the force applying block, so that the driving part does not apply force to the driven part any more, and then the net collecting operation of the device is stopped, thereby reducing the probability of damage of the device.
2. According to the fishing net, due to the arrangement of the force application block and the force buffering block, when the driven part rotates reversely, the extruded force application block can contact the force buffering block, the volume of the force buffering block is gradually increased, so that the speed of the driven part during reverse rotation can be increased to be reduced, the impact force on the force application block when the force application block contacts the force application block again is reduced, the probability that the driving part is damaged due to the impact force is reduced, and meanwhile, due to the action, the phenomenon that the impact force is too large, when the resistance of the fishing net is smaller than the elastic force of the elastic part, the force application block cannot effectively contact the force application block, so that the fishing net cannot be collected again, the fishing operation is invalid, and the sampling efficiency is influenced.
3. According to the invention, through the arrangement of the force application block and the telescopic cavity, when the driven part drives the force application block to impact the force application block, the force application block moves inwards for a certain distance in the telescopic cavity and compresses the elastic part, and part of gas in the telescopic cavity can be squeezed into the gas guide hole by the inwardly moved force application block, so that the influence of the impact force on the driving part is further reduced through the action, and the probability of damage of the device is reduced.
4. According to the invention, through the arrangement of the force-relieving block and the force-applying block, when the driven part drives the force-relieving block to contact the force-applying block, gas in the telescopic cavity can enter the clamping groove, so that the friction piece is pushed to rub against the inner wall of the driven part, the impact of the force-applying block by the force-applying block is further relieved, and the probability of damage of the net collecting device is reduced.
Drawings
FIG. 1 is a schematic view of the entire structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the net retracting device according to the present invention;
FIG. 3 is a schematic view of the internal structure of the sliding chamber according to the present invention;
fig. 4 is a schematic side sectional view of the net collecting device of the present invention.
In the figure: 1. a hull; 2. a contact wheel; 3. a net collecting device; 4. a driving member; 5. a telescoping chamber; 6. a force application block; 7. an elastic member; 8. an air vent; 9. a card slot; 10. a friction member; 11. a driven member; 12. a slide chamber; 13. a stress block; 14. a retarding block; 15. a rope.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 and 2, a sampling boat for fish living body fishing and resource density estimation comprises a boat body 1, a contact wheel 2 is rotatably mounted at the tail of the boat body 1 for assisting net collection, a net collecting device 3 is mounted at a cabin of the boat body 1, the net collecting device 3 is composed of a driving part 4, a telescopic cavity 5, a force application block 6, an elastic part 7, an air guide hole 8, a clamping groove 9, a friction part 10, a driven part 11, a sliding cavity 12, a stress block 13 and a slow force block 14, the driving part 4 is rotatably mounted at the cabin of the boat body 1, the driving part 4 is driven by a power mechanism (such as a motor), the telescopic cavity 5 is formed in a rod body of the driving part 4, the telescopic cavity 5 is vertically and symmetrically arranged, the force application block 6 is hermetically and slidably mounted in a cavity of the telescopic cavity 5, an end of the force application block 6 extends out of the telescopic cavity 5, the elastic part 7 is mounted in the cavity of the telescopic cavity 5, one end of the elastic part 7 is connected with a piston end of the force application block 6, the other end of the elastic part 7 is connected with the bottom surface of the telescopic cavity 5, the elasticity of the elastic part 7 can be set to be equal to the effective traction force of the power mechanism, the driven part 11 is installed at the right side position of the driving part 4, a sliding cavity 12 is formed inside the rod body of the driven part 11, the rod body of the driving part 4 is in sliding connection with the sliding cavity 12, a stress block 13 is welded on the inner wall of the sliding cavity 12, the driving part 4 can be in contact with the stress block 13 through the force application block 6 to further drive the driven part 11 to rotate forwards and carry out net collection operation, the contact surfaces of the force application block 6 and the stress block 13 are both arranged in a cambered surface, a rope 15 is fixedly installed on the outer side surface of the rod body of the driven part 11, the other end of the rope is connected with a fishing net, when the power mechanism drives the driving part 4 to rotate forwards, the force application block 6 can be in contact with and drive the stress block 13 to rotate forwards, so that the driven part 11 synchronously rotates and the rope 15 is wound to further realize the net collection operation, when the resistance of the fishing net and objects in the fishing net is greater than the elastic force of the elastic part 7, the fishing net and the objects in the fishing net can apply reverse force to the driven part 11 through the rope 15, so that the stressed block 13 extrudes and crosses the force application block 6, and further the driving part 4 does not apply forward force to the driven part 11 any more, so that the net collecting operation of the device is stopped, thereby reducing the probability of damage of the device caused by overlarge resistance, and then the fishing net loses the tensile force applied by the driving part 4 and sinks back to enable part of fishes or objects to leave the fishing net, so that the resistance applied by the fishing net to the rope 15 is gradually reduced, meanwhile, in the process, the rope 15 can pull the driven part 11 to rotate reversely, so that the stressed block 13 continuously impacts and crosses the force application block 6, and then when the resistance is less than the elastic force of the elastic part 7, the stressed block 13 impacts but does not cross the force application block 6 any more, so that the driving part 4 drives the driven part 11 to collect the net through the forward rotation of the force application block 6, through the actions, the phenomenon that the fishing operation is invalid and the sampling efficiency is influenced is avoided.
Referring to fig. 3, the cavity inside the force application block 6 in the telescopic cavity 5 is filled with gas, the inner part of the rod body of the driving member 4 in the telescopic cavity 5 is transversely provided with gas guide holes 8, the branch gas holes of the gas guide holes 8 are respectively communicated with the symmetrical telescopic cavities 5, when the force application block 6 is impacted by the force bearing block 13, the force application block 6 is driven to move into the telescopic cavity 5, so that part of the gas in the telescopic cavity 5 enters the gas guide holes 8, and through the actions, the influence of impact force on the driving member 4 is reduced, and the probability of damage of the device is reduced.
Referring to fig. 2, a clamping groove 9 is formed in a position, located on the right side of the air guide hole 8, inside the rod body of the driving part 4, the clamping groove 9 is of a square structure, a total air hole of the air guide hole 8 is communicated with the clamping groove 9, a friction part 10 is installed on the right side of the driving part 4, a sliding end of the friction part 10 is movably clamped with the clamping groove 9, the friction part 10 can be in contact with the inner wall on the right side of the sliding cavity 12, when air enters the air guide hole 8, the friction part 10 can be pushed to extend out of the clamping groove 9 to a certain degree and further rub the inner wall of the sliding cavity 12, and the friction part 10 rotates along with the driving part 4, so that the friction force can slow down the impact of the force application block 6 by the force application block 13 to a certain degree.
Referring to fig. 4, the driven member 11 is installed at the right side of the friction member 10, the positions of the inner wall of the sliding cavity 12 on the forward rotation direction of the force receiving block 13 are welded with the retarding blocks 14 at equal intervals, and the inner sides between the retarding blocks 14 are in smooth transition, when the driven member 11 rotates reversely, the force receiving block 6 can contact the retarding blocks 14, so that the reverse rotation speed of the driven member 11 is slowed down, the impact of the force receiving block 13 on the force receiving block 6 is further reduced, and meanwhile, through the actions, the situation that the impact force is too large, when the resistance of the fishing net is smaller than the elastic force of the elastic member 7, the force receiving block 13 cannot be in effective contact with the force receiving block 6, so that the fishing operation cannot be taken again, and the sampling efficiency is affected.
The volume of the slow force block 14 is sequentially increased along the forward rotation direction of the force receiving block 13, the force application block 6 can be in contact with the inner side surface of the slow force block 14 with the minimum volume, and the volume of the slow force block 14 is gradually increased, so that the speed of the driven piece 11 in the reverse rotation can be increased from high to low, and further, when the force receiving block 13 is in contact with the force application block 6 again, the impact force is minimum, and the influence of the impact on the driving piece 4 is reduced.
The use method (working principle) of the invention is as follows:
when the fishing net is in operation, firstly, the fishing net is placed into water, the ship body 1 is driven forwards, then the tension of water on the fishing net is passed, and then the fishing net is gradually unfolded and extended into the water, in the process, the fishing net pulls the rope 15, so that the net collecting device 3 releases the rope, then the driven ship body drives the fishing net to move, and further the fish and floaters in the water are collected into the net, when the unit condition is reached, the ship body 1 stops driving, and the driving part 4 is driven to rotate forwards through the power mechanism, so that the force application block 6 drives the force application block 13 and the driven part 11 to rotate forwards synchronously, and further the rope 15 is wound on the driven part 11, thereby realizing net collecting operation, in the process, the fishing net can collect more fish and floaters, so that the resistance of the fishing net on the driven part 11 is gradually increased, when the resistance is greater than the elastic force of the elastic part 7, the force application block 13 crosses the force application block 6, and further the driven part 11 rotates backwards, so that the fishing net drives the rope 15 to sink and move back, the driving part 4 still rotates forwards in the process, the force application block 6 is contacted with the force application block 13 and the slow force block 14 intermittently, when the force application block 6 is contacted with the telescopic cavity 5, the force application block 6 moves towards the inner side of the telescopic cavity 5 and extrudes the gas in the elastic part 7 and the telescopic cavity 5, the gas enters the clamping groove 9 through the gas guide hole 8, and finally the friction part 10 is rubbed with the inner wall of the sliding cavity 12, then when the structure is not contacted, the elastic part 7 drives the force application block 6 to reset, so that the friction part 10 is not rubbed with the inner wall of the sliding cavity 12, in addition, when the fishing net sinks gradually, part of fishes and floaters can be separated from the fishing net and can move away by themselves or can be pushed away by the undercurrent in water, so that the resistance of the fishing net to the driven part 11 is reduced, then, when the resistance is smaller than the elasticity of the elastic part 7, the driven part 11 drives the force application block 13 to be contacted with the force application block 6 effectively, so that the driving member 4 again drives the driven member 11 to wind the rope 15, which is a working cycle, and the resistance of the net to the driven member 11 includes the weight of the rope 15 itself.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A sampling ship for fish live body is catched and resource density estimation, including hull (1), contact wheel (2) are installed in the afterbody rotation of hull (1) for supplementary receipts net, its characterized in that: the boat cabin of the boat body (1) is rotatably provided with a driving part (4), the driving part (4) is driven by a power mechanism, telescopic cavities (5) which are symmetrically arranged up and down are formed in the body of the driving part (4), a force application block (6) is slidably arranged in the inner cavity of each telescopic cavity (5), the outer end of each force application block (6) extends out of each telescopic cavity (5), an elastic part (7) is arranged in the cavity of each telescopic cavity (5), one end of each elastic part (7) is connected with the piston end of each force application block (6), the other end of each elastic part (7) is connected with the bottom surface of each telescopic cavity (5), the elasticity of each elastic part (7) is equal to the effective traction force of the power mechanism, a driven part (11) is arranged at the right side of the driving part (4), and a sliding cavity (12) is formed in the body of each driven part (11), the body of rod and the smooth chamber (12) of driving piece (4) form swing joint, the inner wall fixed mounting in smooth chamber (12) has atress piece (13), driving piece (4) can be through application of force piece (6) and atress piece (13) contact, and then drives driven piece (11) corotation to receive the operation of netting, the contact surface of application of force piece (6) and atress piece (13) is the cambered surface setting, the lateral surface fixed mounting of driven piece (11) the body of rod has rope (15), the other end and the fishing net of rope (15) are connected.
2. The sampling vessel for fish live fishing and resource density estimation according to claim 1, wherein: the gas is filled into the cavity located on the inner side of the force application block (6) in the telescopic cavity (5), the center position inside the rod body of the driving part (4) is provided with a gas guide hole (8), and branch gas holes of the gas guide hole (8) are communicated with the symmetrical telescopic cavity (5) respectively.
3. The sampling boat for fish live fishing and resource density estimation according to claim 2, wherein: the driving part (4) is characterized in that a clamping groove (9) which is of a square structure is formed in the position, located on the right side of the air guide hole (8), in the rod body of the driving part (4), a main air hole of the air guide hole (8) is communicated with the clamping groove (9), and a friction part (10) which can be in friction with the side wall of the sliding cavity (12) is movably clamped in the clamping groove (9).
4. The sampling boat for fish live fishing and resource density estimation according to claim 3, wherein: the inner wall of the sliding cavity (12) is provided with force buffering blocks (14) at equal intervals in the forward rotation direction of the force bearing blocks (13), and the inner side surfaces between the force buffering blocks (14) are in smooth transition.
5. The sampling boat for fish live fishing and resource density estimation according to claim 4, wherein: the volume of the force buffering block (14) is sequentially increased along the positive rotation direction of the force bearing block (13), and the force application block (6) can be in contact with the inner side surface of the force buffering block (14) with the minimum volume.
CN202210732323.4A 2022-06-27 2022-06-27 Sampling boat for fish living body fishing and resource density estimation Expired - Fee Related CN114766443B (en)

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Application Number Priority Date Filing Date Title
CN202210732323.4A CN114766443B (en) 2022-06-27 2022-06-27 Sampling boat for fish living body fishing and resource density estimation

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CN202210732323.4A CN114766443B (en) 2022-06-27 2022-06-27 Sampling boat for fish living body fishing and resource density estimation

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CN114766443B true CN114766443B (en) 2022-09-13

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB160572A (en) * 1919-12-24 1921-03-24 Thomas Jefferson Trew Improvements in automatic reeling devices
GB645659A (en) * 1948-10-12 1950-11-08 Harry Cecil Short Improvements relating to apparatus for hauling trawling gear
GB1459110A (en) * 1973-12-28 1976-12-22 Manche Atel Chantiers Trawlers
GB1588850A (en) * 1977-04-06 1981-04-29 Fish & Ships Gear Fishing gear
US4309837A (en) * 1980-04-11 1982-01-12 Anchor Machine & Manufacturing, Inc. Apparatus for shaking fish free from gillnets, longlines and similar fish capturing means
CN1498074A (en) * 2001-03-17 2004-05-19 ������������ʽ���� Net hauling equipment for fishing vessels
CN110313449A (en) * 2019-07-12 2019-10-11 晋江市捷威机械制造有限公司 A kind of automatic net hauler
CN111387148A (en) * 2020-04-15 2020-07-10 广州鸿海海洋技术服务有限公司 Krill fishing boat

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB160572A (en) * 1919-12-24 1921-03-24 Thomas Jefferson Trew Improvements in automatic reeling devices
GB645659A (en) * 1948-10-12 1950-11-08 Harry Cecil Short Improvements relating to apparatus for hauling trawling gear
GB1459110A (en) * 1973-12-28 1976-12-22 Manche Atel Chantiers Trawlers
GB1588850A (en) * 1977-04-06 1981-04-29 Fish & Ships Gear Fishing gear
US4309837A (en) * 1980-04-11 1982-01-12 Anchor Machine & Manufacturing, Inc. Apparatus for shaking fish free from gillnets, longlines and similar fish capturing means
CN1498074A (en) * 2001-03-17 2004-05-19 ������������ʽ���� Net hauling equipment for fishing vessels
CN110313449A (en) * 2019-07-12 2019-10-11 晋江市捷威机械制造有限公司 A kind of automatic net hauler
CN111387148A (en) * 2020-04-15 2020-07-10 广州鸿海海洋技术服务有限公司 Krill fishing boat

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Granted publication date: 20220913