CN101543196B - Sparse mesh metalimnion otter-trawl - Google Patents
Sparse mesh metalimnion otter-trawl Download PDFInfo
- Publication number
- CN101543196B CN101543196B CN2008100148658A CN200810014865A CN101543196B CN 101543196 B CN101543196 B CN 101543196B CN 2008100148658 A CN2008100148658 A CN 2008100148658A CN 200810014865 A CN200810014865 A CN 200810014865A CN 101543196 B CN101543196 B CN 101543196B
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- otter
- trawl
- net
- netting
- netting twine
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Abstract
The invention relates to a sparse mesh metalimnion otter-trawl with high fishing efficiency. The otter-trawl is characterized in that a single foot line of a net sleeve is connected with a net stem in a contact mode, and has the advantages that: firstly, a single foot line structure is adopted so as to make curves at the sleeve side smooth and evasive, have good buffering effect, save netting twine, reduce the friction on the sleeve side and water resistance and be repaired easily; secondly, the netting twines at the sleeve side are extremely thick with the thickness more than twice of a thick line of a master ruler basic netting twine so as to resist the wear, prolong the service life, and the like; thirdly, net mesh is super large, the maximum can be 30m so that the filtering speed of the net mesh is quick, so the otter-trawl can protect the parr resource; besides, the resistance is small, the net towing speed of a netting gear is high, and the sweeping area of the netting gear is multiple in unit time; and fourthly, the otter-trawl can perform metalimnion operation which expands the fishing space of intermediate water and superjacent water, breaks through the mode that the conventional otter-trawl can only operate in the bottom layer, effectively reduces the pressure that bottom marine resources are overfished, and accords with the national marine resources policy.
Description
Technical field:
The present invention relates to the instrument of fishing for, specifically a kind of catching rate is high, the sparse mesh metalimnion otter-trawl of long service life.
Background technology:
As everyone knows, trawlnet is to use the widest instrument of fishing for, traditional trawlnet to divide two trawlnet tools and otter-trawl tool in the marine fishing.Two trawlnet tools are to pull two of trawlnet respectively by two towboats to drag guiding principle, two trawlnet mouths are opened fish for, its deficiency be must two towboat while operation, energy utilization rate is low, most countries is forbidden pair trawling etc. in the world; The otter-trawl tool is that single ship pulls; By dividing the expansion of water plate level that network interface is opened; The two relatively trawlnets of otter-trawl tool have and protect fishery resourses, operate nimble, energy efficient, advantage such as general access in the world, but traditional otter-trawl has the following disadvantages: (1) mesh is little, and drainage is slow; The mesh maximum is no more than 50cm, is unfavorable for discharging juvenile fish; Because mesh is less, the towing speed of netting gear is slow, and it is long-pending little to sweep the sea, yields poorly, and maximum towing speed has only 2.5 li/hour, can't fish for large-scale fish especially; (2) process structure is complicated; Body and wing are made by multi-disc net sheet and are formed, and that is to say that body vertically is linked to be pyramid type, particularly body in order to reach slick and sly structure by the multi-disc net along body; Reach the most for a long time by eight, ten ettings and form by cutting out to make; Body is not slick and sly, water resistance is big, expands insufficient, inefficiency, technology difficulty is very big, influences promoting the use of of otter-trawl; (3) use the object limitation big: only be applicable to bottom operation waters, the waters can only be blank at the middle and upper levels; Only be suitable for domestic operation and indivedual in the world national short-term operation, be unfavorable for the development of the deep-sea fishing worldization; (4) because the net stalk is to be intertwined and connected with being connected of wing limit, the waste netting twine, place, sleeve limit netting twine is meticulous, water resistance is big, friction is big, makes the netting gear cracky, and service life is short.
Summary of the invention:
The objective of the invention is to overcome the deficiency of above-mentioned prior art, provide that a kind of towing speed is fast, output is high, not fragile, can be at the sparse mesh metalimnion otter-trawl tool of different water layer operations.
The present invention can reach through following measure:
A kind of sparse mesh metalimnion otter-trawl; Comprise by net capsule, body and the wing netting stalk and process by netting twine; It is characterized in that wing is connected by single payment to a porter with the net stalk, single payment to a porter can be the extension line of cuff place netting twine, also can be for setting up line; Single payment to a porter adopts contact to be connected with the net stalk; Generally employing knotting mode is connected, so that sleeve limit curve is slick and sly, the friction of good buffer effect, saving netting twine, minimizing cuff place and water, minimizing water resistance, netting gear damage the service life of easy repairing in back and prolongation netting gear etc.
The present invention can strengthen the mesh at body and wing place, and the mesh of body and wing is greater than 60cm, and maximum can reach 30m; Make the drainage of netting gear fast, towing speed is fast, with minute water plate cooperate can be in last down different water layers carry out operation, it is greatly long-pending to sweep the sea; Output is high, is applicable to the power fishing boat that varies in size.
The sleeve sideline rugosity of wing of the present invention is more than 2 times of the basic rugosity of main scale netting twine, to resistance to wear, to increase the service life etc.
Place, sleeve of the present invention limit to the netting twine of netting capsule so that netting gear resistance to wears, increases service life to carefully being made up of netting twine branch echelon more than 3 kinds by thick, is applicable to large mesh, high towing speed operation.
Body among the present invention has changed the structure of body; Vertically be linked to be pyramid type by the multi-disc net along body by original body; That is to say to change into by a plurality of cylindrical shape net sheets and be coupled to the pyramid type body through clip by the trapezoidal net sheet of multi-disc; So that body is slick and sly, water resistance is little, expansion fully, high efficiency, towing speed be high.
Advantageous effect one of the present invention is to adopt single payment to a porter structure, so that the cuff curve is slick and sly, good buffer effect, practices thrift netting twine, reduces the cuff friction, the minimizing water resistance, repairs easily and increase the service life etc.; The 2nd, sleeve limit place netting twine is thick, and rugosity is more than 2 times of the basic rugosity of main scale netting twine, to resistance to wear, to increase the service life etc.; The 3rd, mesh is big, and maximum can reach 30m, and towing speed is fast; The horizontal expansion of netting gear is strong, also can become the water layer operation, expands the space of fishing for of otter-trawl; Energy savings has effectively been protected marine resources, meets national marine resource policy.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is half sleeve of the present invention limit and the structural representation of netting stalk.
Embodiment:
Below in conjunction with accompanying drawing the present invention is further described:
As shown in the figure, a kind of sparse mesh metalimnion otter-trawl comprises by net capsule 4, body 3 and the wing 2 netting stalk 1 and processed by netting twine; Wing 2 and net stalk 1 are connected by single payment to a porter 5, and single payment to a porter 5 is the extension line of sleeve limit netting twine, and single payment to a porter 5 is connected with net stalk 1 employing contact; So that sleeve limit curve is slick and sly, good buffer effect, practice thrift netting twine, reduce sleeve limit friction, reduce water resistance, repair easily and increase the service life etc., the present invention can strengthen the mesh at body 3 and wing 2 places; The mesh of body 3 and wing 2 is greater than 60cm, and maximum can reach 30m, so that the drainage of netting gear is fast, towing speed is fast; Cooperate and in last, to carry out operation by following different water layers with minute water plate, sweep the sea and amass greatly, be applicable to the fishing boat that varies in size; The sleeve sideline rugosity of wing 2 of the present invention is more than 2 times of body 3 netting twine rugosity, resistance to wearing, to increase the service life etc., place, sleeve of the present invention limit to the netting twine of netting capsule by thick to carefully forming by netting twine branch echelon more than 3 kinds; So that netting gear resistance to wears, increase service life, be applicable to large mesh; Body among the present invention has changed the structure of former body; Originally body vertically is linked to be pyramid type by the multi-disc net along body, that is to say that being linked to be pyramid type by the trapezoidal net sheet of multi-disc changes into by a plurality of cylindrical shape net sheets and be coupled to the pyramid type body through clip, so that body is slick and sly, water resistance is little; Expansion fully, high efficiency, towing speed be high; Major advantage effect one of the present invention is to adopt single payment to a porter knot contact syndeton, so that sleeve limit curve is slick and sly, good buffer effect, practices thrift netting twine, reduces the friction, minimizing water resistance of cuff and water, repairs easily and increase the service life etc.; The 2nd, sleeve limit place netting twine is extraordinarily thick, and rugosity is more than 2 times of the basic netting twine rugosity of main scale, to resistance to wear, to increase the service life etc.; The 3rd, the mesh super large, maximum can reach 30m, and towing speed is fast; The 4th, can become the water layer operation, protected the demersal fishery resource of overfishing, opened up pelagic fishery fishable resources space.
Claims (2)
1. sparse mesh metalimnion otter-trawl; Comprise net stalk and net capsule, body and the wing processed by netting twine; It is characterized in that wing is provided with single payment to a porter, single payment to a porter is the extension line of cuff place netting twine or sets up line that single payment to a porter is connected with the net stalk; The mesh at body and wing place is greater than 60 cm; Place, sleeve limit netting twine is more than 2 times of the basic netting twine rugosity of main scale, and to carefully being made up of netting twine branch echelon more than 3 kinds, body is coupled to the pyramid type body by a plurality of cylindrical shape net sheets through clip to place, sleeve limit to the netting twine of netting capsule of sparse mesh metalimnion otter-trawl by thick.
2. a kind of sparse mesh metalimnion otter-trawl according to claim 1 is characterized in that single payment to a porter is connected with the knotting mode with the net stalk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100148658A CN101543196B (en) | 2008-03-26 | 2008-03-26 | Sparse mesh metalimnion otter-trawl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100148658A CN101543196B (en) | 2008-03-26 | 2008-03-26 | Sparse mesh metalimnion otter-trawl |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101543196A CN101543196A (en) | 2009-09-30 |
| CN101543196B true CN101543196B (en) | 2012-06-27 |
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ID=41190778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100148658A Expired - Fee Related CN101543196B (en) | 2008-03-26 | 2008-03-26 | Sparse mesh metalimnion otter-trawl |
Country Status (1)
| Country | Link |
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| CN (1) | CN101543196B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103039408B (en) * | 2012-12-31 | 2014-09-17 | 河北省海洋与水产科学研究院 | Floating trawl for investigating macroplankton in upper middle water body of inland large water surface |
| CN103798194A (en) * | 2014-02-14 | 2014-05-21 | 上海海洋大学 | Ship side board supporting rod type saury stick-held net |
| CN106508830B (en) * | 2016-11-08 | 2023-03-28 | 山东好运通网具科技股份有限公司 | Large-scale dustpan-shaped net bag with net applied and binding method thereof |
| CN106818656B (en) * | 2017-02-21 | 2022-05-31 | 山东好运通网具科技股份有限公司 | Conveniently-operated large mesh net and net hauling method for offshore operation of large mesh net |
| CN112493213A (en) * | 2020-11-27 | 2021-03-16 | 中国水产科学研究院东海水产研究所 | Biological sampling trawl net for fish in upper layer in deep water |
| CN112544576B (en) * | 2020-12-03 | 2023-04-07 | 中国水产科学研究院东海水产研究所 | Bottom trawl with bottom release structure |
| DK202270052A1 (en) * | 2022-02-10 | 2023-11-06 | P/F Vonin | Trawl net system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213473U (en) * | 1987-09-15 | 1988-08-10 | 太仓县浮桥渔网厂 | High-speed round-mouthed trawlnet |
| CN2072328U (en) * | 1989-11-04 | 1991-03-06 | 辽宁省大连海洋渔业总公司 | Large-mesh trawlnet |
| CN2091534U (en) * | 1990-11-21 | 1992-01-01 | 太仓县浮桥渔网厂 | Fast round-mouth trawlnet suitable for different water depthes |
| CN201167523Y (en) * | 2008-03-26 | 2008-12-24 | 荣成市石岛运通渔网厂 | Large-mesh various aqueous layer single cod end |
-
2008
- 2008-03-26 CN CN2008100148658A patent/CN101543196B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213473U (en) * | 1987-09-15 | 1988-08-10 | 太仓县浮桥渔网厂 | High-speed round-mouthed trawlnet |
| CN2072328U (en) * | 1989-11-04 | 1991-03-06 | 辽宁省大连海洋渔业总公司 | Large-mesh trawlnet |
| CN2091534U (en) * | 1990-11-21 | 1992-01-01 | 太仓县浮桥渔网厂 | Fast round-mouth trawlnet suitable for different water depthes |
| CN201167523Y (en) * | 2008-03-26 | 2008-12-24 | 荣成市石岛运通渔网厂 | Large-mesh various aqueous layer single cod end |
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| Publication number | Publication date |
|---|---|
| CN101543196A (en) | 2009-09-30 |
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Owner name: WEIHAI GOOD LUCK PASSES THE FISHING GEAR CO., LTD. Free format text: FORMER OWNER: RONGCHENG SHIDAO YUNTONG FISHING NET FACTORY Effective date: 20120524 |
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Free format text: CORRECT: ADDRESS; FROM: 264500 WEIHAI, SHANDONG PROVINCE TO: 264200 WEIHAI, SHANDONG PROVINCE |
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Effective date of registration: 20120524 Address after: 264200, Weihai, Shandong, Rongcheng province Shidao No. 318 East Road, animal husbandry Patentee after: Weihai Haoyuntong Nets Technology Co., Ltd. Address before: 264500, Shandong, Weihai province Shidao 318 East Road, animal husbandry Patentee before: Rongcheng Shidao Yuntong Fishing Net Factory |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120627 Termination date: 20130326 |