CN102388846A - Trawl net for double-surface spring-tooth shellfish - Google Patents
Trawl net for double-surface spring-tooth shellfish Download PDFInfo
- Publication number
- CN102388846A CN102388846A CN2011102144009A CN201110214400A CN102388846A CN 102388846 A CN102388846 A CN 102388846A CN 2011102144009 A CN2011102144009 A CN 2011102144009A CN 201110214400 A CN201110214400 A CN 201110214400A CN 102388846 A CN102388846 A CN 102388846A
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- Prior art keywords
- shellfish
- net
- shellfish device
- pick
- dead levers
- Prior art date
- 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.)
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- 235000015170 shellfish Nutrition 0.000 title claims abstract description 93
- 241000237852 Mollusca Species 0.000 claims description 19
- 210000000078 claw Anatomy 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 4
- 239000013536 elastomeric material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000009360 aquaculture Methods 0.000 abstract description 3
- 244000144974 aquaculture Species 0.000 abstract description 3
- 238000009395 breeding Methods 0.000 abstract description 2
- 230000001488 breeding effect Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract 2
- 230000003187 abdominal effect Effects 0.000 abstract 1
- 230000007306 turnover Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 241000237516 Mizuhopecten yessoensis Species 0.000 description 2
- 241000219422 Urtica Species 0.000 description 2
- 235000009108 Urtica dioica Nutrition 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- UZVHFVZFNXBMQJ-UHFFFAOYSA-N butalbital Chemical compound CC(C)CC1(CC=C)C(=O)NC(=O)NC1=O UZVHFVZFNXBMQJ-UHFFFAOYSA-N 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Farming Of Fish And Shellfish (AREA)
Abstract
The invention relates to the technical field of aquaculture, in particular to a trawl net for double-surface spring-tooth benthonic shellfish which is a full symmetric structure. The structure is new, and the structure can normally work while any one surface touches the seabed, so the problem that the normal shellfish net cannot catch caused by that the abdominal net faces upside and the back net faces downside while operates in the large deep-water area, especially rational and stable catching efficiency of the trawl net on underwater posture is showed while the trawl net is used in the large deep-water areas and the heavy storm areas. The invention not only saves the work time and the energy consumption, but also reduces the personal safety risk during the work period, improves the safety coefficient of releasing net, and saves the energy consumption. The invention has important significance for upgrading the benthonic shellfish breeding equipment and has wide popularization and use values.
Description
Technical field
The present invention relates to technical field of aquaculture, be specifically related to a kind of two-sided elastic claw benthic mollusca trawlnet.
Background technology
At present, in China's Coastal Areas, the breed of shellfish development is rapid, and play stream propagation in the end is new in recent years fast, a kind of breeding way of outstanding effect of development that rises, and invests little, manageability, has the advantage of large-scale cultivation exploitation, and the development potentiality ten minutes is huge.Along with the progress of culturing science and technology; The depth of water of shellfish bottom sowing culture is constantly widened; Yet the netting gear that is used for shellfish culture process storage investigation at present and fishes for is greater than 50 meters the depth of water zone operation time, because the incomplete symmetry of netting gear each several part structure, under the effect of current and boats and ships towing tension; Turn over the net rate up to more than 30%, lose time and the energy.
In addition, arrive the seabed with the operate as normal attitude, promptly do not turn over net for guaranteeing netting gear.Operation to the staff when off line requires very strictness, and the volume and weight of netting gear danger concerning the staff of execute-in-place itself is very big, so, be badly in need of a kind of benthic mollusca safe, stable, simple to operate at present and gather netting gear.
Summary of the invention
The purpose of this invention is to provide a kind of efficient, safe, stable benthic mollusca and gather trawlnet.
The technical scheme that the present invention adopted is: two-sided elastic claw benthic mollusca trawlnet; Be full symmetrical configuration, comprise first three corner steady, preceding pick up the shellfish device, after pick up the shellfish device, drag the guiding principle connecting ring, net bow, Vee formation fixed mount, sweep extra large iron chains, keed, auxiliaryly drag guiding principle connecting ring, the first ten shellfish device dead levers, the second ten shellfish device dead levers, keed seal mouth ring, the first net bow support, the second net bow support, the 3rd net bends support, network interface support and bracing frame.
Wherein, Draging the guiding principle connecting ring is welded on the net bow; The net bow is welded on the network interface support; Net bow is gone up the welding first net bow support, the second net bow support and the 3rd net bow support, the first ten shellfish device dead levers are welded between the second net bow support; The second ten shellfish device dead levers are welded between the 3rd net bow support, pick up before the distributed and arranged on the first ten shellfish device dead levers and the second ten shellfish device dead levers shellfish device with after pick up the shellfish device, between the first ten shellfish device dead levers and the second ten shellfish device dead levers support bar is set simultaneously and plays fixation.First three corner steady is welded on the first ten shellfish device dead levers and the first net bow support, and the auxiliary guiding principle connecting ring that drags of the corner structure place welding of first three corner steady, Vee formation fixed mount are welded on the second ten shellfish device dead levers and the network interface support.Sweep extra large iron chains and be connected between the network interface support, keed is connected to be swept on the extra large iron chains, and the keed other end is provided with the keed seal mouth ring.
Pick up before said the shellfish device with after pick up the shellfish device perpendicular to the first ten shellfish device dead levers and the second ten shellfish device dead levers, promptly to gather the plane, seabed vertical with trawlnet.
Before pick up the shellfish device with after pick up the shellfish device and be staggered with screw bolt and nut and be fixed on the first ten shellfish device dead levers and the second ten shellfish device dead levers easy assembly and disassembly.
Before pick up the shellfish device total length greater than the length 6～8cm of the second net bow support, after pick up the length 6～8cm of the total length of shellfish device greater than the 3rd net bow support.
Before pick up the shellfish device with after pick up shellfish device free end, an end that promptly contact with the seabed wraps up or entangles with the high-strength abrasion-proof elastomeric material, prevents benthic mollusca etc. is caused damage.
The said guiding principle connecting ring that drags drags the guiding principle connecting ring and can separately use with auxiliary; When there is barrier in the seabed; 2 drag the guiding principle connecting ring with auxiliary drag the guiding principle connecting ring simultaneously with drag the guiding principle steel wire rope and be connected use, during the clear of seabed, 2 are draged the guiding principle connecting ring and drag the guiding principle steel wire rope and be connected use.
When the present invention used, the interspersed nettle bolt of the keed seal mouth ring that keed is terminal was tight.Netting gear drags the guiding principle connecting ring through 2 and drags guiding principle connecting ring (using when there is barrier in the seabed) and drag the guiding principle steel wire rope and be connected with auxiliary; Two-sided elastic claw benthic mollusca trawlnet is in the towing process; Before pick up the shellfish device or after pick up the shellfish device benthic mollusca picked up the end off sea, netting gear is packed benthic mollusca in the net capsule in the process of moving ahead.
Because the present invention be full symmetrical configuration, but the equal operate as normal in any one side contact seabed has solved common shellfish netting gear when the depth of water flows big regional operation, occur easily belly up, carry on the back net and can not adopt the situation of catching down.Especially operation more can show its reliability and stable adopting of attitude under water and catch efficient when big zone of depth of water stream and high sea.Both save activity duration and energy resource consumption, reduced the personal safety risk between operational period again.
The invention has the beneficial effects as follows: adopt the holohedral symmetry design, novel structure, but the equal operate as normal in any one side contact seabed, the operation when therefore off line requires fairly simple, has improved and has put the net safety coefficient, reduces personal risk; The present invention's attitude stabilization does not under water turn over net, can save energy resource consumption and raising and adopt and catch efficient; The present invention is significant to the device upgrade of benthic mollusca aquaculture industry, has wide popularizing value.
Description of drawings
Fig. 1 is a perspective view of the present invention;
Fig. 2 is a front view of the present invention.
Among the figure: 1, first three corner steady, 2, the preceding shellfish device that picks up, 3, after pick up the shellfish device, 4, drag the guiding principle connecting ring, 5, the net bow; 6, Vee formation fixed mount, 7, sweep extra large iron chains, 8, keed, 9, the auxiliary guiding principle connecting ring that drags; 10, the first ten shellfish device dead levers, 11, the second ten shellfish device dead levers, 12, the keed seal mouth ring, 13, the first net bow support; 14, the second net bow support, the 15, the 3rd net bow support, 16, the network interface support, 17, bracing frame.
Embodiment
Below in conjunction with accompanying drawing the present invention is explained further details.
As depicted in figs. 1 and 2; Two-sided elastic claw benthic mollusca trawlnet is a full symmetrical configuration, comprise first three corner steady 1, preceding pick up shellfish device 2, after pick up shellfish device 3, drag guiding principle connecting ring 4, net bow 5, Vee formation fixed mount 6, sweep extra large iron chains 7, keed 8, auxiliary guiding principle connecting ring 9, the first ten shellfish device dead levers 10, the second ten shellfish device dead levers 11, keed seal mouth ring 12, the first net bow support 13, the second net bow support 14, the 3rd net bow support 15, network interface support 16 and the bracing frame 17 of draging.
Wherein, Draging guiding principle connecting ring 4 is welded on the net bow 5; Net bow 5 is welded on the network interface support 16; The welding first net bow support 13, the second net bow support 14 and the 3rd net bow support 15 on the net bow 5, the first ten shellfish device dead levers 10 are welded between the second net bow support 14, and the second ten shellfish device dead levers 11 are welded between the 3rd net bow support 15, preceding pick up shellfish device 2 with after pick up shellfish device 3 usefulness screw bolt and nut and be fixed on the first ten shellfish device dead levers 10 and the second ten shellfish device dead levers 11; And before pick up shellfish device 2 with after pick up shellfish device 3 perpendicular to the first ten shellfish device dead levers 10 and the second ten shellfish device dead levers 11; Promptly to gather the plane, seabed vertical with trawlnet, the preceding length 7cm that picks up shellfish device 2 greater than the second net bow support 14, after pick up the length 7cm of the total length of shellfish device 3 greater than the 3rd net bow support.Before pick up shellfish device 2 with after pick up shellfish device 3 free ends, an end that promptly contacts with the seabed is with intensity high abrasion elastomeric material, length is that the rubber tube of 3～4cm entangles.Simultaneously between the first ten shellfish device dead levers 10 and the second ten shellfish device dead levers 11 17 fixations of support bar are set.First three corner steady 1 is welded on the first ten shellfish device dead levers 10 and the first net bow support 13, and the auxiliary guiding principle connecting ring 9 that drags of the corner structure place welding of first three corner steady 1, Vee formation fixed mount 6 are welded on the second ten shellfish device dead levers 11 and the network interface support 16.Sweep extra large iron chains 7 and be connected between the network interface support 16, keed 8 is connected to be swept on the extra large iron chains 7, and keed 8 other ends are provided with keed seal mouth ring 12.
During use, that the keed seal mouth rings 12 interspersed nettle bolts of keed 8 ends are tight.Netting gear drags guiding principle connecting ring 4 through 2 and drags guiding principle connecting ring 9 (there is barrier in the seabed) and drag the guiding principle steel wire rope and be connected with auxiliary; Two-sided elastic claw benthic mollusca trawlnet is in the towing process; Before pick up shellfish device 2 or after pick up shellfish device 3 benthic mollusca picked up the end off sea, netting gear is packed benthic mollusca in the net capsule 8 in the process of moving ahead.
Use the trawling of two-sided elastic claw shellfish, do not exist and turn over the net phenomenon, can save the energy and raising and adopt and catch efficient.When carrying out wild Patinopecten yessoensis resource investigation in the profundal zone; Use common production netting gear to flow big regional operation 50～70 meters depth of waters; Turn over the net rate up to more than 60%; Use the two-sided elastic claw benthic mollusca of the present invention trawlnet instead and adopt to catch not have and turn over the net phenomenon, efficiently accomplished wild Patinopecten yessoensis survey tasks satisfactorily.
Claims (6)
1. two-sided elastic claw shellfish trawlnet; It is characterized in that; Be full symmetrical configuration, this trawlnet comprise first three corner steady (1), preceding pick up shellfish device (2), after pick up shellfish device (3), drag guiding principle connecting ring (4), net bow (5), Vee formation fixed mount (6), sweep extra large iron chains (7), keed (8), auxiliary guiding principle connecting ring (9), the first ten shellfish device dead levers (10), the second ten shellfish device dead levers (11), keed seal mouth ring (12), the first net bow support (13), the second net bow support (14), the 3rd net bow support (15), network interface support (16) and the bracing frame (17) of draging; Draging guiding principle connecting ring (4) is welded on the net bow (5); Net bow (5) is welded on the network interface support (16); Net bow (5) is gone up the welding first net bow support (13), the second net bow support (14) and the 3rd net bow support (15), the first ten shellfish device dead levers (10) are welded on second net and bend between the support (14); The second ten shellfish device dead levers (11) are welded between the 3rd net bow support (15); The first ten shellfish device dead levers (10) and the second ten shellfish device dead levers (11) go up pick up before the distributed and arranged shellfish device (2) with after pick up shellfish device (3), between the first ten shellfish device dead levers (10) and the second ten shellfish device dead levers (11) support bar (a 17) fixation is set simultaneously.First three corner steady (1) is welded on the first ten shellfish device dead levers (10) and the first net bow support (13); The auxiliary guiding principle connecting ring (9) that drags of the corner structure place of first three corner steady (1) welding, Vee formation fixed mount (6) are welded on the second ten shellfish device dead levers (11) and the network interface support (16); Sweep extra large iron chains (7) and be connected between the network interface support (16), keed (8) is connected to be swept on the extra large iron chains (7), and keed (8) other end is provided with keed seal mouth ring (12).
2. two-sided elastic claw benthic mollusca trawlnet according to claim 1 is characterized in that, pick up before said shellfish device (2) and after pick up shellfish device (3) perpendicular to the first ten shellfish device dead levers (10) and the second ten shellfish device dead levers (11), promptly to gather the plane, seabed vertical with trawlnet.
3. two-sided elastic claw benthic mollusca trawlnet according to claim 1 and 2 is characterized in that, pick up before described shellfish device (2) and after pick up shellfish device (3) and be staggered with screw bolt and nut and be fixed on the first ten shellfish device dead levers (10) and the second ten shellfish device dead levers (11).
4. two-sided elastic claw benthic mollusca trawlnet according to claim 1 and 2 is characterized in that, pick up before described shellfish device (2) and after pick up shellfish device (3) length bend length 6～8cm of 15 respectively greater than the second net bow support (14) and the 3rd net.
5. two-sided elastic claw benthic mollusca trawlnet according to claim 1 and 2 is characterized in that, pick up before described shellfish device (2) and after pick up shellfish device (3) free end, an end that promptly contacts with the seabed is with high-strength abrasion-proof elastomeric material parcel or entangle.
6. two-sided elastic claw benthic mollusca trawlnet according to claim 1; It is characterized in that; Describedly drag guiding principle connecting ring (4) and auxiliary drag guiding principle connecting ring (9) and can separately use, when there was barrier in the seabed, two were draged guiding principle connecting ring (4) and drag guiding principle connecting ring (9) while and drag the guiding principle steel wire rope and be connected use with auxiliary; During the seabed clear, two are draged guiding principle connecting ring (4) and drag the guiding principle steel wire rope and be connected use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110214400 CN102388846B (en) | 2011-07-27 | 2011-07-27 | Trawl net for double-surface spring-tooth shellfish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110214400 CN102388846B (en) | 2011-07-27 | 2011-07-27 | Trawl net for double-surface spring-tooth shellfish |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102388846A true CN102388846A (en) | 2012-03-28 |
| CN102388846B CN102388846B (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110214400 Active CN102388846B (en) | 2011-07-27 | 2011-07-27 | Trawl net for double-surface spring-tooth shellfish |
Country Status (1)
| Country | Link |
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| CN (1) | CN102388846B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102812935A (en) * | 2012-09-04 | 2012-12-12 | 阳江市高级技工学校 | Mudflat shellfish collecting device |
| CN104089792A (en) * | 2014-05-14 | 2014-10-08 | 浙江省海洋水产研究所 | Anchored bentonic organism acquisition system and acquisition method thereof |
| CN104082255A (en) * | 2014-05-14 | 2014-10-08 | 浙江省海洋水产研究所 | Marine bottom trawling trapper and trapping method thereof |
| CN109463358A (en) * | 2018-11-27 | 2019-03-15 | 浙江海洋大学 | A friendly bottom trawl |
| CN111771827A (en) * | 2020-07-13 | 2020-10-16 | 肖人华 | Scallop throwing-out device for aquaculture |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017168110A1 (en) * | 2016-04-01 | 2017-10-05 | Deeside Marine Ltd | Fishing drag for catching seabed dwelling marine animals |
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|---|---|---|---|---|
| GB1221169A (en) * | 1968-09-13 | 1971-02-03 | Krupp Gmbh | Method and apparatus for trimming trawl nets |
| US4563830A (en) * | 1983-05-09 | 1986-01-14 | Tommy French | Process and apparatus for harvesting soft shell crayfish |
| US4646448A (en) * | 1985-07-17 | 1987-03-03 | Motivatit Seafoods, Inc. | Oyster dredging apparatus |
| CN2236741Y (en) * | 1995-12-26 | 1996-10-09 | 李光 | Fishing device for seabed shellfish |
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2011
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Non-Patent Citations (1)
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| 朱清澄等: "小型渔船单拖网网具与网板改进设计与试验", 《中国水产科学》, vol. 4, no. 4, 31 December 1997 (1997-12-31) * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102812935A (en) * | 2012-09-04 | 2012-12-12 | 阳江市高级技工学校 | Mudflat shellfish collecting device |
| CN104089792A (en) * | 2014-05-14 | 2014-10-08 | 浙江省海洋水产研究所 | Anchored bentonic organism acquisition system and acquisition method thereof |
| CN104082255A (en) * | 2014-05-14 | 2014-10-08 | 浙江省海洋水产研究所 | Marine bottom trawling trapper and trapping method thereof |
| CN104082255B (en) * | 2014-05-14 | 2016-04-27 | 浙江省海洋水产研究所 | Grabber and catching method thereof is dragged at the bottom of a kind of ocean |
| CN104089792B (en) * | 2014-05-14 | 2016-05-25 | 浙江省海洋水产研究所 | A kind of sinker formula benthon acquisition system and acquisition method thereof |
| CN109463358A (en) * | 2018-11-27 | 2019-03-15 | 浙江海洋大学 | A friendly bottom trawl |
| CN111771827A (en) * | 2020-07-13 | 2020-10-16 | 肖人华 | Scallop throwing-out device for aquaculture |
| CN111771827B (en) * | 2020-07-13 | 2022-06-03 | 肖人华 | Scallop throwing-out device for aquaculture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102388846B (en) | 2013-02-06 |
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Owner name: ZHANGZIDAO ISLAND GROUP CO., LTD. Free format text: FORMER NAME: DALIAN ZHANGZIDAO FISHERY GROUP CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Zhangzidao town shabao village of Changhai County of Dalian province Liaoning 116503 Patentee after: Zhangzidao Island Group Co., Ltd. Address before: Zhangzidao town shabao village of Changhai County of Dalian province Liaoning 116503 Patentee before: Dalian Zhangzidao Fishery Group Co., Ltd. |