CN203851659U - Trawl plate for catching Antarctic krill - Google Patents
Trawl plate for catching Antarctic krill Download PDFInfo
- Publication number
- CN203851659U CN203851659U CN201420243591.0U CN201420243591U CN203851659U CN 203851659 U CN203851659 U CN 203851659U CN 201420243591 U CN201420243591 U CN 201420243591U CN 203851659 U CN203851659 U CN 203851659U
- Authority
- CN
- China
- Prior art keywords
- plate
- main panel
- guiding principle
- krill
- trawl board
- 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.)
- Expired - Lifetime
Links
- 241000239366 Euphausiacea Species 0.000 title claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 26
- 239000003351 stiffener Substances 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 230000003014 reinforcing effect Effects 0.000 abstract 3
- 238000007789 sealing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 241000269799 Perca fluviatilis Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 244000309464 bull Species 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
- 238000003306 harvesting Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- A01K73/04—Devices for spreading or positioning, e.g. control thereof
- A01K73/045—Devices for spreading or positioning, e.g. control thereof for lateral sheering, e.g. trawl boards
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
Abstract
The utility model relates to a trawl plate for catching Antarctic krill. The trawl plate for catching Antarctic krill comprises a hollow structure, a wrap support, a warp reinforcing plate, threaded seal holes, and a cross rope support; the hollow structure is made with a first main face plate, a second main face plate, a front round bar, a rear round bar, a top plate and a bottom plate by enclosing; the first main face plate and the second main face plate are arc shaped; the front end of the bottom plate is bent in an arc shape; the warp support is connected outside the first and second main face plates in a surrounding manner; a warp pull plate is fixed on the warp support through bolts; the warp reinforcing plate is mounted between the first and second main face plates; the warp support is fixed on the warp reinforcing plate; the threaded seal holes are arranged in the top and bottom plates; the cross rope is disposed outside the second main face plate. The trawl plate for catching Antarctic krill has good hydrodynamic performance; the hollow structure in the trawl plate has great buoyancy in water, in-water weight of the trawl plate during operating can be reduced, lengths of trawl warps can be increased, and horizontal extension of the trawl is increased.
Description
Technical field
The utility model relates to the trawl board in marine fishing technology, particularly krill trawl board.
Background technology
Trawl board is the important accessory of expanding netting gear in single boat trawl operation.The quality of web plate performance is the key factor that affects catch and catching rate.World's trawl-net fishing uses more web plate type to have rectangle, ellipse, vertical type curved face type, vertical type curved face " V " font, slat formula, multiple aerofoil profile web plate etc. at present, the job requirements of different mesh-plate structures and shape and web plate is in close relations, generally can be divided into bottom trawlnet web plate and become water layer trawl board.Must be according to factor reasonable selection web plate types such as different target fingerling characteristic, sea conditions and fishing ground situations in actual production, thus trawlnet efficiency improved.
Krill aboundresources, can perch water layer for the krill resource of exploitation more shallow, 100 meters with only 4 millimeters～6 millimeters of shoaling layer, individualities, Burden-Swimming Ability of KM a little less than, fish in process trawlnet towing overlong time or trawlnet excessive velocities and will cause catches to be squeezed, affect fishery harvesting quality.Therefore, in krill production process, the control of bull trawl speed requires high especially, and trawlnet speed is generally no more than 3.5 joints.For keeping effective expansion of traw mouth, except vertical opening can drift along power configuration regulates by netting gear, netting gear horizontal expansion needs the expansionary force producing in towing process by web plate to keep, except web plate operation water layer is had higher requirements, need be controlled at middle level or the surface water of 0 meter～70 meters, require web plate still to there is higher expansionary force simultaneously under low towing speed Condition Of Tow.China enters ship quantity and the catch that fishing krill fishes for and all presents ascendant trend in recent years, but trawl board still adopts the external import web plate of suitable high speed profundal zone operation, in producing, krill there is the problem that spreading performance under low towing speed is lower, be not suitable for showing middle level fishing operation.
Utility model content
The utility model provides a kind of krill trawl board that adapts to different top layers and middle level water body operation and have good spreading performance.
For solving the problems of the technologies described above, the utility model krill trawl board, comprises the hollow structure being surrounded by the first main panel, the second main panel, front round steel, rear round steel, upper plate and lower roof plate; Wherein said the first main panel and described the second main panel are circular arc; The front end of described lower roof plate is bent into circular arc; Drag guiding principle support, described in drag guiding principle support and be arranged on described the first main panel outside, be bolted and draged guiding principle arm-tie described draging on guiding principle support; Drag guiding principle stiffener, described in drag guiding principle stiffener articulating in described the first main panel and described the second main panel outside, described in drag guiding principle support and drag on guiding principle stiffener described in being fixed on; Thread seal hole, described thread seal hole is separately positioned on described upper plate and described lower roof plate; And fork guiding principle support, described fork guiding principle support is arranged on described the second main panel outside.
Preferably, in the middle of described the first main panel and described the second main panel, be provided with reinforcement gusset, in the middle of described reinforcement gusset, be provided with through hole.
Preferably, the quantity of described reinforcement gusset is four, and four described reinforcement gussets are that even interval arranges.
Preferably, above described upper plate, hook is installed.
Preferably, below described lower roof plate, be bolted Weight plate.
Preferably, the distance between described upper plate upper surface and described lower roof plate lower surface is 4.8 meters.
Preferably, between described front round steel center and described rear round steel center, distance is 2.8 meters.
Preferably, described the first main panel and described the second main panel are rectangular steel plates, and steel plate thickness is 1.2 centimetres.
Preferably, the circular arc curvature of described the first main panel 5 is 0.18; The circular arc curvature of described the second main panel 13 is 0.4.
Preferably, described front round steel and described rear round steel are the round steel of 60 millimeters of diameters.
The utility model krill trawl board has good hydrodynamic performance, the hollow structure of web plate inside has larger buoyancy in water, weight in water can alleviate web plate operation time, the length that contributes to increase trawlnet and drag guiding principle, the horizontal expansion that improves netting gear, is applicable to the pelagic trawling of krill table.
Brief description of the drawings
Fig. 1 is the utility model krill trawl board front view;
Fig. 2 is the utility model krill trawl board left view;
Fig. 3 is the utility model krill trawl board right view;
Fig. 4 is the utility model krill trawl board vertical view;
Fig. 5 is the utility model krill trawl board upward view.
Description of reference numerals in the utility model krill trawl board accompanying drawing:
1-Weight plate 2-lower roof plate 3-drags guiding principle stiffener
Round steel 5-the first main panel 6-upper plate before 4-
7-hook 8-sealing bolt 9-strengthens gusset
After 10-, round steel 11-drags guiding principle arm-tie 12-and drags guiding principle support
13-the second main panel 14-fork guiding principle support
Embodiment
Below in conjunction with accompanying drawing, the utility model krill trawl board is described in further detail.
As shown in Fig. 1～Fig. 5, the material of the utility model krill trawl board is hull steel.Distance between upper plate 6 upper surfaces and lower roof plate 2 lower surfaces is 4.8 meters.Between front round steel 4 centers and rear round steel 10 centers, distance is 2.8 meters.The first main panel 5 and the second main panel 13 are rectangular steel plates, 1.2 centimetres of steel plate thickness, and in the arc-shaped through bending processing, the circular arc curvature of the first main panel 5 is that the circular arc curvature of 0.18, the second main panel 13 is 0.4.Front round steel 4 and rear round steel 10 adopt the round steel of 60 millimeters of diameters.Weld with front round steel 4, rear round steel 10 respectively at the first main panel 5 and the second main panel 13 two ends, forms inner hollow structure.Draging guiding principle stiffener 3 is arranged in the middle of the first main panel 5 and the second main panel 13.Drag middle being fixed on of guiding principle support 12 and drag on guiding principle stiffener 3, two ends are fixed on the first main panel.Drag guiding principle arm-tie 11 and drag guiding principle support 12 and be bolted.Between the first main panel 5 and the second main panel 13,4 of uniform weldings are strengthened gusset 9, for increasing web plate intensity.Strengthen there is through hole in the middle of gusset 9.Weight plate 1 is positioned at lower roof plate 2 belows, fixing by sealing bolt 8 sealings.Upper plate 6 tops are provided with hook 7, facilitate the lifting of web plate.It is the circular arc of 0.5 meter that lower roof plate 2 front ends are bent into radius.Upper plate 6 arranges 2 thread seal holes, seals by sealing bolt 8.Lower roof plate 2 arranges 1 thread seal hole, seals by sealing bolt 8.The second main panel 13 outside weld yoke guiding principle supports 14, for yoke guiding principle.
The utility model krill trawl board has good hydrodynamic performance, the hollow structure of web plate inside has larger buoyancy in water, weight in water can alleviate web plate operation time, the length that contributes to increase trawlnet and drag guiding principle, the horizontal expansion that improves netting gear, is applicable to the pelagic trawling of krill table.
Below the preferred embodiment of the utility model having been created illustrates, but the utility model is created and is not limited to described embodiment, those of ordinary skill in the art also can make all modification being equal to or replacement under the prerequisite without prejudice to the utility model creative spirit, and the modification that these are equal to or replacement are all included in the application's claim limited range.
Claims (10)
1. krill trawl board, is characterized in that, comprises the hollow structure being surrounded by the first main panel, the second main panel, front round steel, rear round steel, upper plate and lower roof plate; Wherein
Described the first main panel and described the second main panel are circular arc; The front end of described lower roof plate is bent into circular arc;
Drag guiding principle support, described in drag guiding principle support and be arranged on described the first main panel outside, be bolted and draged guiding principle arm-tie described draging on guiding principle support;
Drag guiding principle stiffener, described in drag guiding principle stiffener articulating in described the first main panel and described the second main panel outside, described in drag guiding principle support and drag on guiding principle stiffener described in being fixed on;
Thread seal hole, described thread seal hole is separately positioned on described upper plate and described lower roof plate; And
Fork guiding principle support, described fork guiding principle support is arranged on described the second main panel outside.
2. krill trawl board according to claim 1, is characterized in that, in the middle of described the first main panel and described the second main panel, is provided with reinforcement gusset, is provided with through hole in the middle of described reinforcement gusset.
3. krill trawl board according to claim 2, is characterized in that, the quantity of described reinforcement gusset is four, and four described reinforcement gussets are that even interval arranges.
4. krill trawl board according to claim 1, is characterized in that, above described upper plate, hook is installed.
5. krill trawl board according to claim 1, is characterized in that, below described lower roof plate, has been bolted Weight plate.
6. krill trawl board according to claim 1, is characterized in that, the distance between described upper plate upper surface and described lower roof plate lower surface is 4.8 meters.
7. krill trawl board according to claim 1, is characterized in that, between described front round steel center and described rear round steel center, distance is 2.8 meters.
8. krill trawl board according to claim 1, is characterized in that, described the first main panel and described the second main panel are rectangular steel plates, and steel plate thickness is 1.2 centimetres.
9. according to the krill trawl board described in claim 1 or 8, it is characterized in that, the circular arc curvature of described the first main panel 5 is 0.18; The circular arc curvature of described the second main panel 13 is 0.4.
10. krill trawl board according to claim 1, is characterized in that, described front round steel and described rear round steel are the round steel of 60 millimeters of diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243591.0U CN203851659U (en) | 2014-05-13 | 2014-05-13 | Trawl plate for catching Antarctic krill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243591.0U CN203851659U (en) | 2014-05-13 | 2014-05-13 | Trawl plate for catching Antarctic krill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203851659U true CN203851659U (en) | 2014-10-01 |
Family
ID=51601547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420243591.0U Expired - Lifetime CN203851659U (en) | 2014-05-13 | 2014-05-13 | Trawl plate for catching Antarctic krill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203851659U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105594670A (en) * | 2016-03-09 | 2016-05-25 | 中国水产科学研究院东海水产研究所 | Horizontal expansion device for Euphausia superba trawl net |
| CN105766819A (en) * | 2016-03-09 | 2016-07-20 | 中国水产科学研究院东海水产研究所 | Method for adjusting work attack angle of euphausia superba dragnet horizontal expanding device |
| CN108347910A (en) * | 2015-09-14 | 2018-07-31 | 新拖网门设计有限公司 | Air foil shape trawl board |
-
2014
- 2014-05-13 CN CN201420243591.0U patent/CN203851659U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108347910A (en) * | 2015-09-14 | 2018-07-31 | 新拖网门设计有限公司 | Air foil shape trawl board |
| CN108347910B (en) * | 2015-09-14 | 2022-02-01 | 新拖网门设计有限公司 | Wing-shaped trawl board |
| CN105594670A (en) * | 2016-03-09 | 2016-05-25 | 中国水产科学研究院东海水产研究所 | Horizontal expansion device for Euphausia superba trawl net |
| CN105766819A (en) * | 2016-03-09 | 2016-07-20 | 中国水产科学研究院东海水产研究所 | Method for adjusting work attack angle of euphausia superba dragnet horizontal expanding device |
| CN105766819B (en) * | 2016-03-09 | 2018-10-02 | 中国水产科学研究院东海水产研究所 | A kind of krill trawlnet horizontal expansion device operation angle of attack method of adjustment |
| CN105594670B (en) * | 2016-03-09 | 2018-12-18 | 中国水产科学研究院东海水产研究所 | A kind of krill trawlnet horizontal expansion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141001 |