CN102960278B - Catching net cage for purse net aquiculture - Google Patents
Catching net cage for purse net aquiculture Download PDFInfo
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- CN102960278B CN102960278B CN201210488966.5A CN201210488966A CN102960278B CN 102960278 B CN102960278 B CN 102960278B CN 201210488966 A CN201210488966 A CN 201210488966A CN 102960278 B CN102960278 B CN 102960278B
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- etting
- net cage
- fish
- aforesaid
- fishing
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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
- 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
Abstract
The invention discloses a catching net cage for purse net aquiculture, which is characterized in that the catching net cage comprises a barrel-shaped frame, a classification gate and a netting, wherein the classification grate is arranged on the side of the frame and consists of a plurality of grids in parallel; gaps for fish less than certain body width escaping from the net cage are formed among the grids; the netting comprises a first netting, a second netting and a third netting; the first netting and the second netting are arranged at the top and bottom of the frame; and the third netting is arranged on the side face of the frame by an opening-closing mechanism in an opening and closing manner. Compared with the prior art, the net cage has the advantages that the net cage adopts an opening-closing device to catch large fish and release small fish according to the relation between the weight and body width of the fish and the fish evading behavior, and the fish can be classified while the catching is finished.
Description
Technical field
The present invention relates to one and fish for net cage, this fishes for net cage can be applied to fishing in seining cultivation.
Background technology
It is as follows that existing purse seine is fished for process: first in the impact that to a certain degree adds seine net surrounding, the shoal of fish is caught up with to the edge from purse seine; Then close the engine of ship, throw in the fresh bait of fish happiness food, lure collection to the harvesting position of specifying fish, meanwhile, by draw in the net lightly along net wall surrounding put down, treat that most fish attracted to the position of appointment, assigned address is drawn in the net in towing lentamente, make fish be enclosed in the harvesting position of appointment, then utilize diddle-net to catch to ship.The classification processing of fish after harvesting.Utilize the harvesting hierarchy system of purse seine to carry out classification processing to fish aboard ship, this machine classification is wanting the fish of classification to slide to via a funnel the tilted-putted hierarchy system that adjacent grid spacing is increased to bottom gradually by top, the feature that this system utilizes fish to glide under the effect of self gravitation, make the fish of small dimension can pass through grid from level to level, the fish of large specification can not pass through after certain grade of grid, along this grid through leading fish groove toward lower slider, final this rank that arrives is received lymphogranuloma inguinale, arrive next stage grid by this grade of grid than this grade of little fish of Grill space, as do not passed through, arrive corresponding receipts lymphogranuloma inguinale along leading fish groove accordingly, down landing successively, finally fish is separated completely.This kind of hierarchy system processing speed is fast and reduce fish do not contact because of long-time the death that water causes in the time of classification.But the obvious more complicated of above process, is difficult to operation, and, to fish in process and draw in the net fish easily to cause damage, quality is caught in impact, and it is dried up too early not reach the fish of Catchable size, impact is further formed.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of seining cultivation with fishing for net cage for the above-mentioned state of the art.
Another technical problem to be solved by this invention is to provide a kind of classification to be easy to seining cultivation with fishing for net cage for the above-mentioned state of the art.
Another technical problem to be solved by this invention is to provide a kind of easy to operate seining cultivation with fishing for net cage.
Another technical problem to be solved by this invention is to provide a kind of catching and stays greatly little seining cultivation with fishing for net cage.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of seining cultivation is with fishing for net cage, it is characterized in that comprising framework, classification grid and the etting of tubular, aforementioned classification grid are located at frame facet and are formed side by side by multiple grids, between aforesaid grid, have for being less than the wide fish of certain body and flee from the gap of net cage, aforesaid etting comprises the first etting, the second etting and the 3rd etting, aforesaid the first etting and the second etting are located at respectively frame roof and bottom, aforesaid the 3rd etting by a mechanism for opening/closing energy folding be located at frame facet.
The 3rd described etting comprises first module etting and second unit etting, described mechanism for opening/closing can comprise slide fastener, pulling buckle and pull rope, aforesaid slide fastener is two and is located at respectively first module etting and second unit etting side, described pulling buckle is connected as a single entity aforesaid two slide fasteners and can moves up and down to realize the folding between first module etting and second unit etting, and aforesaid pull rope is connected in pulling buckle and can drives pulling buckle to move up and down.
Described grid is by connecting line and be sheathed on the sleeve pipe that can freely rotate on connecting line and form.Sleeve pipe 32 can rotate freely, and can eliminate the damage to fish body in classification process completely
For the further entrapping function that improves, on the first described etting, have and be funnel shaped trapping mouthful.The inner side of described framework is provided with the articles holding table that annular arranges for decoy, and this articles holding table is made by net sheet.
As preferably, framework is formed by circular hollow steel-pipe welding.
Compared with prior art, the invention has the advantages that: adopt mechanism for opening/closing, utilize the wide relation of fish body weight and body and fish avoidance behaviour, make the wide fish that is less than classification grid Grill space of body by classification grid, be trapped in net cage and body is wider than the fish that equals classification grid Grill space, fish for, catch and put greatly little object thereby reach classification.The wide little individual fish that is less than classification grid Grill space of body can be swum out of by grid like a cork, and body is wider than the large individual fish of separate gate spacing and stays in net cage.In addition Grill space difference, the identical separate gate of size are arranged on removable fixing Hierarchical Network, can meet the multi-stage separation of multiple fish.Overall structure is simple, easily manufactures, and processing ease.
Brief description of the drawings
Fig. 1 is example structure schematic diagram.
Fig. 2 is the decomposition texture schematic diagram of removing in Fig. 1 after the 3rd etting.
Fig. 3 is the decomposition texture schematic diagram of the 3rd etting and framework.
Fig. 4 is the structural representation of the 3rd etting while opening.
Fig. 5 is the structure for amplifying schematic diagram of grid.
State diagram when Fig. 6 is embodiment operation.
Embodiment
Below in conjunction with embodiment and comparative example, the present invention is described in further detail.
As shown in Figure 1 to 4, fish for net cage and comprise framework 1, classification grid and the etting of tubular, classification grid are located at the side of framework 1 and are formed side by side by multiple grids 3, between grid 3, have for being less than the wide fish of certain body and flee from the gap of net cage, etting comprises the first etting 21, the second etting 22 and the 3rd etting 23, the first etting 21 and the second etting 22 are located at respectively framework 1 top and bottom, the 3rd etting 23 by a mechanism for opening/closing energy folding be located at framework 1 side.Whole framework 1 in the present embodiment all adopts hollow steel pipe to be welded, and the upper and lower opening of framework 1 is circular.
As shown in Figure 3, the 3rd etting in the present embodiment is two, lay respectively at framework 1 both sides, every the 3rd etting 23 comprises first module etting 231 and second unit etting 232, mechanism for opening/closing comprises slide fastener 41, pulling buckle 42 and pull rope 43, slide fastener 41 is two and is located at respectively first module etting 231 and second unit etting 231 sides, pulling buckle 42 is connected as a single entity two slide fasteners 41 and can moves up and down to realize the folding between first module etting 231 and second unit etting 232, pull rope 43 is connected in pulling buckle 42 and can drives pulling buckle 42 to move up and down, slide fastener 41 in the present embodiment adopts sews up steel work.
As shown in Figure 5, grid 3 is by connecting line 31 and be sheathed on the sleeve pipe 32 that can freely rotate on connecting line and form, and sleeve pipe 32 has long with short.In design, adopt flexible connection mode, the each section of sleeve pipe 32 that forms classification grid can be rotated freely, therefore, can eliminate the damage to fish body in classification process completely.It is 1.45g/m3 that sleeve pipe 32 adopts pvc pipe density, its density ratio seawater is bigger, more moderate, and there is the advantages such as smooth surface, intensity are higher, seawater corrosion resistance, sleeve pipe 32 as adopt metal material, due to matter weight, the size that has limited classification grid surface areas, is difficult to make fish to swim out of easily classification grid, and can have caused operational difficulty, due to its rough surface, easily cause the damage of fish body in addition.As about in the density that adopts polyvinyl piping materials 0.95g/m3 left and right, is less than the proportion of water, easily floats when nature, thereby classification grid can not well be opened in water, has reduced accordingly the area of classification grid.
Shown in Fig. 2, on the first etting 21, have and be funnel shaped trapping mouth 211.The inner side of framework 1 is provided with the articles holding table 5 that annular arranges for decoy, and this articles holding table 5 is made by net sheet.
As shown in Figure 6, when use, fish for the bait on the articles holding table 5 of net cage 10 with fish happiness food, fishing boat 100 utilizes crane to be transported to the harvesting position in purse seine 101 by fishing for net cage 10, open the 3rd etting 23, then will fish for net cage 10 with crane and winch to the harvesting water surface, and slow decreasing is until fish for the top of net cage 10 and just flush with the water surface.When fishing for when luring the shoal of fish of collection to reach certain density in net cage 10, utilize mechanism for opening/closing to close rapidly to fish for the 3rd etting of net cage 10 to close, then carry on slowly and fish for net cage 10 with crane, in the upper process of carrying, classification grid carry out classification processing to the fish of harvesting, make the fish of harvesting meet the requirement of Catchable size, mention after fishing boat 100 when fishing for net cage 10, slowly put into fishing for net cage 10 live fish hold that fills seawater, the pulling buckle 42 in the mechanism for opening/closing of net cage 10 sides is fished in utilization, opening enclosed, imports the fish of fishing in cabin.
Claims (5)
1. a seining cultivation is with fishing for net cage, it is characterized in that comprising framework, classification grid, mechanism for opening/closing and the etting of tubular, aforementioned classification grid are located at frame facet and are formed side by side by multiple grids, between aforesaid grid, have for being less than the wide fish of certain body and flee from the gap of net cage, aforesaid etting comprises the first etting, the second etting and the 3rd etting, aforesaid the first etting and the second etting are located at respectively frame roof and bottom, aforesaid the 3rd etting by a mechanism for opening/closing energy folding be located at frame facet;
The 3rd described etting comprises first module etting and second unit etting, described mechanism for opening/closing comprises slide fastener, pulling buckle and pull rope, aforesaid slide fastener is two and is located at respectively first module etting and second unit etting side, described pulling buckle is connected as a single entity aforesaid two slide fasteners and can moves up and down to realize the folding between first module etting and second unit etting, and aforesaid pull rope is connected in pulling buckle and can drives pulling buckle to move up and down.
2. seining cultivation according to claim 1, with fishing for net cage, is characterized in that described grid by connecting line and is sheathed on the sleeve pipe that can freely rotate on connecting line forming.
3. seining cultivation according to claim 1, with fishing for net cage, is characterized in that having and being funnel shaped trapping mouthful on the first described etting.
4. seining cultivation according to claim 1, with fishing for net cage, is characterized in that the inner side of described framework is provided with the articles holding table that annular arranges for decoy, and this articles holding table is made by net sheet.
5. seining cultivation according to claim 1, with fishing for net cage, is characterized in that described framework is formed by circular hollow steel-pipe welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210488966.5A CN102960278B (en) | 2012-11-26 | 2012-11-26 | Catching net cage for purse net aquiculture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210488966.5A CN102960278B (en) | 2012-11-26 | 2012-11-26 | Catching net cage for purse net aquiculture |
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| Publication Number | Publication Date |
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| CN102960278A CN102960278A (en) | 2013-03-13 |
| CN102960278B true CN102960278B (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210488966.5A Active CN102960278B (en) | 2012-11-26 | 2012-11-26 | Catching net cage for purse net aquiculture |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105432512A (en) * | 2014-09-01 | 2016-03-30 | 耿泽平 | Protective net applied to sea cucumber culture |
| CN104938439B (en) * | 2015-05-28 | 2017-05-17 | 浙江海洋学院 | Fishing net for enclosure culture |
| CN107318729A (en) * | 2017-09-04 | 2017-11-07 | 来安县天绿生态农业科技有限公司 | A kind of fish culture box |
| CN111387113B (en) * | 2019-09-12 | 2021-12-17 | 浙江海洋大学 | Intelligent device for fishing deep-sea purse net cultured fishes |
| CN112273285B (en) * | 2020-11-03 | 2022-03-01 | 浙江海洋大学 | Double-layer aquaculture purse seine with cleaning device |
| CN112568197B (en) * | 2020-12-09 | 2022-07-05 | 浙江海洋大学 | Open-air fish structure of gathering of east sea large yellow croaker |
| CN113615621B (en) * | 2021-08-30 | 2022-08-02 | 中国水产科学研究院东海水产研究所 | Method for grading and catching cultured fishes |
| CN113575483B (en) * | 2021-09-01 | 2022-09-13 | 哈尔滨工业大学（威海） | Sweep net structure and cylinder mould |
| CN114009407B (en) * | 2021-11-09 | 2022-07-01 | 中国海洋大学 | Automatic catching device for deep water live fish with different specifications |
| CN115211410B (en) * | 2022-08-30 | 2023-06-02 | 四川农业大学 | Underwater grading fishing device and method for small-sized aquaculture fish pond |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1215760C (en) * | 2003-05-05 | 2005-08-24 | 中国海洋大学 | Sinking type aquatic breeding mesh cage of easy scattering bait |
| CN2623014Y (en) * | 2003-05-16 | 2004-07-07 | 中国水产科学研究院南海水产研究所 | Anti-impact netty bag for sea netcage |
| CN2829360Y (en) * | 2005-01-04 | 2006-10-25 | 福建省水产研究所 | Fish sizes grading appts |
| KR100877074B1 (en) * | 2007-03-20 | 2009-01-09 | 하영수 | upbringing weave a net |
| CN201781855U (en) * | 2010-08-13 | 2011-04-06 | 上海海洋大学 | Adjustable large yellow croakers grading device |
| CN201967529U (en) * | 2011-04-13 | 2011-09-14 | 孙丽 | Fishing tackle used for fishing fishes and shrimps |
| CN202112153U (en) * | 2011-05-19 | 2012-01-18 | 连建华 | Seabed culture net cage for sea cucumber |
| CN203027901U (en) * | 2012-11-26 | 2013-07-03 | 浙江海洋学院 | Fishing net cage for purse net aquaculture |
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Effective date of registration: 20160118 Address after: Shu Road Aojiang town Pingyang County Zhejiang city Wenzhou province 325401 Patentee after: Pingyang County Blue seazan Seafood Development Co. Ltd. Address before: 316111 Putuo Institute of science and technology, Datong Road, Zhujiajian, Zhejiang, Zhoushan, No. 127, Patentee before: Zhejiang Ocean University |