CN104285918B - Dragging span fishery harvesting segregation apparatus - Google Patents
Dragging span fishery harvesting segregation apparatus Download PDFInfo
- Publication number
- CN104285918B CN104285918B CN201410492221.5A CN201410492221A CN104285918B CN 104285918 B CN104285918 B CN 104285918B CN 201410492221 A CN201410492221 A CN 201410492221A CN 104285918 B CN104285918 B CN 104285918B
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- Prior art keywords
- mesh sheet
- mesh
- fishery harvesting
- escape
- separation
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- 238000003306 harvesting Methods 0.000 title claims abstract description 55
- 238000005204 segregation Methods 0.000 title claims abstract description 15
- 238000000926 separation method Methods 0.000 claims abstract description 61
- 239000000203 mixture Substances 0.000 claims abstract description 40
- 239000002775 capsule Substances 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 241000251468 Actinopterygii Species 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 10
- 241000238557 Decapoda Species 0.000 description 6
- 230000036541 health Effects 0.000 description 5
- 241000216843 Ursus arctos horribilis Species 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 241001214258 Pampus argenteus Species 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 206010022998 Irritability Diseases 0.000 description 1
- 244000184734 Pyrus japonica Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- 238000005303 weighing 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
-
- 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
- A01K75/00—Accessories for fishing nets; Details of fishing nets, e.g. structure
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Marine Sciences & Fisheries (AREA)
Abstract
The invention discloses a kind of dragging span fishery harvesting segregation apparatus, including be located at trawlnet blind end spacer screen capsule and separate mesh sheet, separate mesh sheet be positioned in the net chamber of trawlnet and be detachably connected on body, separating the size of mesh size of mesh more than body of mesh sheet, the mesh separating mesh sheet is provided with elastic anti-escape closing in blend stop.The present invention arranges separation mesh sheet and trawlnet is separated out different receiving space, the stress utilizing different marine organisms different just makes fishery harvesting be segregated into different receiving spaces by class voluntarily while fishery harvesting is caught network access, and prevent the fishery harvesting separated from returning and escape again to mix by elastic anti-escape closing in blend stop, the fishery harvesting making separation enters different receiving spaces, therefore fishery harvesting can be carried out initial gross separation, substantial amounts of manpower and paying man-hour in road go-on-go operation after minimizing, thus reduce production cost.
Description
Technical field
The present invention relates to a kind of marine fishery fishing tool, in particular, it relates to a kind of dragging span fishery harvesting and divides
From device.
Background technology
The important operating type of one in the fish production of trawl fishing China, trawl fishing operating area is big, and catch is big,
Therefore the marine organisms in the capture of trawlnet crossed marine site are collected among a net regardless of kind, size, need to enter fishery harvesting after receiving net
Row sorting, classification storage, this process needs to spend a large amount of artificial and man-hour, can increase operating cost, drag in the circulation of slow fishery harvesting
City's rhythm, affects income.If marine organisms just can be made while fishing for carry out preliminary classification, can greatly reduce final
Artificial and the man-hour of sorting fishery harvesting.The invention of Publication No. CN101209037A disclosed a kind of adjustable on July 2nd, 2008
Trawlnet fish shrimp separating device, includes left and right side frame, upper and lower side frame and separation grizzly bar, it is characterized in that it is additionally included in upper and lower side frame
The horizontal slide in decussation in two ends and vertical slideway, above-mentioned separation grizzly bar is passed horizontal slide and Kong Gu by bolt
Being scheduled on upper and lower side frame, left and right side frame is fixed with upper and lower side frame by hole and nut and constitutes the outside framework that separates grizzly bar.Again
Upper and lower underframe is provided with the rule of the meter ruler that center is zero, with the interval of grid strip of clean cut separation fish and shrimp.Above-mentioned left and right side frame
Two ends are threaded, the hole on two ends on upper and lower side frame, are linked by nut and upper and lower side frame, constitute dividing of convenient handling
From grid general frame.It is characterized in rationally to be efficiently separating fish and shrimp, preferably protects fishery resourses；Underframe is provided with up and down
Rule make adjustment interval of grid strip accurately facilitate, operation is simple, and need not again and again change fish shrimp separating device, is greatly saved
Operating cost and labour force, but the function that in this device, the migration of grizzly bar anti-fish and shrimp is escaped, it is difficult to prevent the fish and shrimp separated from weighing again
New mixing.
Summary of the invention
Existing trawlnet can not carry out Selective Separation to fishery harvesting, causes the sorting of the fishery harvesting after fishing for be wasted time and energy, increases
Fish production cost, for overcoming this defect, the invention provides one can carry out rough classification to fishery harvesting while fishing for
Dragging span fishery harvesting segregation apparatus.
The technical scheme is that dragging span fishery harvesting segregation apparatus, including the net capsule of the blind end being located at trawlnet
With separation mesh sheet, separate mesh sheet and be positioned in the net chamber of trawlnet and be detachably connected on body, separate the mesh chi of mesh sheet
The very little size of mesh more than body, the mesh separating mesh sheet is provided with elastic anti-escape closing in blend stop.Advancing at fishing boat, trawlnet is opened
When opening, separate mesh sheet in water, form barrier, and different marine organisms have different habit, touch in the horizontal direction
Can show different irritability reactions when encountering barrier, some marine organisms can upwards move about and attempt avoiding barrier, have
Can move about downwards a bit, some then can accelerate by original trip to action, and attempts to pass from the space of barrier, this device based on
Different halobiontic habits, bull trawl structure carries out region segmentation, separates mesh sheet and whole trawlnet is separated into different fishery harvesting
Accommodate space, to separate mesh sheet as boundary, make different fishery harvesting from being advanced in different receiving spaces, encounter barrier and can change trip
To marine organisms do not pass through separation mesh sheet, thus remain in separate mesh off-chip or walk around separation mesh sheet；Owing to separating mesh sheet
Size of mesh, more than the size of mesh of body, is encountered barrier and is liked the marine organisms through mesh can be more likely to separate mesh
The mesh of sheet is as passway for escaping, and therefore health may pass through separation mesh sheet less than these type of marine organisms separating mesh sheet size of mesh
Mesh enter and separate within mesh sheet, so, while fishing for, just can complete the natural separation of different types of fishery harvesting.Bullet
Property anti-escape closing in blend stop there is one-way trip function, marine organisms enter suffered elastic anti-escape in net capsule from net capsule and close up
The resistance of blend stop is less, enters the marine organisms accommodated in space within separation mesh sheet then by elastic anti-escape closing in blend stop
Stop and be difficult to exit this space.
As preferably, separate the net chamber cross-sectional direction formed when mesh sheet is propped up along body and arrange, and separation mesh sheet has many
Sheet, separates mesh sheet and encloses some cage structures with body, and from trawlnet open end to blind end, each mesh chi separating mesh sheet
Very little it is sequentially reduced.Trawlnet is separated into multiple cage structure by multi-disc separation mesh sheet, can like through mesh encountering barrier
Marine organisms carry out multiple tracks separation, after these type of marine organisms pass first separation mesh sheet, and wherein less can the wearing again of build
Crossing down one separate mesh sheet and enter next cage structure, the marine organisms so entering cage structure again can be according to size
Classify further, alleviate the sorting burden in rear road further.
As an alternative, separate axis when mesh sheet is propped up completely with body and become angle structure, and separate mesh sheet side and net
Body is connected, and leaves space between opposite side and body, is provided with the interior cage structure of closing in the net chamber of trawlnet, and interior cage structure is by net
Body, separation mesh sheet and rear mesh sheet enclose and form, and rear mesh sheet is connected to body and separates between mesh sheet.Separate mesh sheet to incline in net chamber
Tiltedly arranging, a part is connected with body, a part of unsettled, mesh sheet after unsettled part connection is upper, and rear mesh sheet is connected with body again,
Can be formed by the interior cage structure closed.Interior cage structure is set and can be separated out more space in net chamber, and in net chamber
Interior cage structure both sides form drop, encounter barrier change trip to marine organisms encounter separation mesh sheet after can edge by the light of nature
Separation mesh sheet upwards to grope, look for the space separated between mesh sheet and body and dissociate from this space, entering net chamber more
Depths, most marine organisms can not return and escape in the most former road between the two sections of spaces that there is drop, thus may proceed to forward
Find new outlets, may proceed to deeply, otherwise be trapped in original place if any sizeable space.Happiness passes through the marine organisms of mesh then
Can manage through separating mesh sheet, if this type of marine organisms build is less than separating mesh sheet mesh, cage structure in meeting nature entrance；
And if this type of marine organisms build is greater than separating mesh sheet mesh, bigger hole mesh can be looked for enter along separating mesh sheet by the light of nature,
Or swim into the space of interior cage structure opposite side from the space separated between mesh sheet and body.So the fishery harvesting of separate mesh off-chip is also
Can further by kind separate, not only facilitate the fishery harvesting after hauling sort, and can reduce separation mesh sheet before fishery harvesting flock together poly-
Collection, it is simple to persistently fish for.
As an alternative, the net chamber of trawlnet is provided with separator panel, separator panel along body prop up completely time net chamber axle cut
Face is arranged, or parallel with net chamber shaft section, and separator panel extends to blind end from traw mouth, and the both sides of separator panel set respectively
There is separation mesh sheet, separate mesh sheet and be simultaneously connected with body and separator panel.Net chamber is divided by separator panel with the combination separating mesh sheet
Become more space, more separation means can be implemented fishery harvesting is carried out finer separation, when marine organisms enter from network interface in netting,
Separate by separating the selection of mesh sheet, enter the corresponding body separated, until net capsule part, can directly carry out rising of catches
Catch, reduce marine organisms traversing times, reduce Fish and sting the possibility being hung in mesh, improve fishery harvesting quality.
As preferably, elastic anti-escape closing in blend stop has many, and elastic anti-escape closing in blend stop one end is fixed on separate mesh
On the mesh opening of sheet, the elastic anti-escape closing in blend stop other end is unsettled, and each elasticity anti-escape closing in blend stop is radially along dividing
The mesh opening of off-network sheet gathers, and elastic anti-escape closing in blend stop free end stretches into the separation mesh sheet side towards body blind end
Form the funnel-form that outer imperial palace is little.When marine organisms enter cage structure by separating the mesh opening of mesh sheet, escape anti-for elasticity
Ease closing in blend stop extending out property of free end promotes, when all of elasticity anti-escape closing in blend stop free end all extending out property promote, elastic
The bell mouth that anti-escape closing in blend stop is formed expands, it is thus possible to make marine organisms enter smoothly；Whereas if in cage structure
Marine organisms attempt to escape from cage structure by the mesh opening of separation mesh sheet, can be by elastic anti-escape closing in blend stop free end
Receipts promote, further block channel.The most elastic anti-escape closing in blend stop can produce the anti-escape effect of only import but no export.
As preferably, elastic anti-escape closing in blend stop carbon fibre is made.Carbon fibre is tough and tensile, good springiness, corrosion-resistant,
Life-time service remains to keep performance in the seawater.
As preferably, the mesh separating mesh sheet is regular hexagon.Regular hexagon mesh is suitable for the Fish of tubular health and penetrates,
Can be used for the Selection of fishes such as Anguillar japonica are fished for.
As an alternative, the mesh separating mesh sheet assumes diamond in shape.Diamond mesh is suitable for the Fish of flat-sided health and penetrates, and it is right to can be used for
The Selection of fishes such as Stromateoides argenteus are fished for, and the separate mesh sheet assembling of diamond mesh is relatively easy.
As an alternative, the mesh separating mesh sheet is square.Filter, trawl resistance little, be suitable for different size Fish point
From.
The invention has the beneficial effects as follows:
Automatically by kind separation fishery harvesting, subsequent sort burden is alleviated.The present invention arranges separation mesh sheet and is separated out not by trawlnet
With accommodating space, the stress utilizing different marine organisms different just makes fishery harvesting voluntarily by class while fishery harvesting is caught network access
It is segregated into different receiving spaces, and prevents from the fishery harvesting separated from returning by elastic anti-escape closing in blend stop escaping again to mix,
Therefore fishery harvesting can be carried out initial gross separation, make the fishery harvesting of separation enter different receiving spaces, improve fishery harvesting quality, after minimizing
Substantial amounts of manpower and paying man-hour in road go-on-go operation, thus reduce production cost.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention；
Fig. 2 is the another kind of structural representation of the present invention；
Fig. 3 is present invention structural representation in embodiment 3；
Fig. 4 be the present invention in embodiment 3 from network interface to the structural representation at visual angle, net bottom direction；
Fig. 5 is present invention structural representation in example 4；
Fig. 6 is a kind of structural representation separating mesh sheet in the present invention；
Fig. 7 is a kind of structural representation of Elastic of the present invention anti-escape closing in blend stop；
Fig. 8 is a kind of side view of Elastic of the present invention anti-escape closing in blend stop.
In figure, 1-net capsule, 2-body, 3-separates mesh sheet, and the elastic anti-escape closing in blend stop of 4-, 5-separates mesh sheet mesh, 6-
Cage structure, cage structure in 7-, 8-separator panel, 9-space.
Detailed description of the invention
The invention will be further described for specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1:
As shown in Fig. 1, Fig. 6, Fig. 7 and Fig. 8, a kind of dragging span fishery harvesting segregation apparatus, including the closing being located at trawlnet
The net capsule 1 of end and separation mesh sheet 3, the cone that trawlnet substantially falls in side after being fully extended, it is circular for separating mesh sheet 3, above
Densely covered cellular regular hexagon mesh, separates the boring of mesh sheet 3 entirety carbon fiber board and forms, separate mesh sheet 3 and tie up to static line
On 30 tether points of body 2, it is achieved with removably connecting of body 2, form net chamber when body is propped up, separate mesh sheet 3 i.e. edge
The cross-sectional direction this net chamber is arranged, and separates mesh sheet 3 periphery and is all connected with body 2, separates mesh sheet mesh 5 size more than net
The size of mesh of body 2, the mesh separating mesh sheet 3 is provided with long and flat elasticity anti-escape closing in blend stop 4.Separating mesh sheet 3 is three
Sheet, is divided into three cage structures adjoined the most successively 6 by the blind end of trawlnet, and cage structure 6 is provided with draw-string opening and closing
Mouth, cage structure 6 is enclosed formed by body 2 and separation mesh sheet 3, from trawlnet open end to blind end, dividing in each separation mesh sheet 3
Off-network sheet mesh 5 size is sequentially reduced.Elastic anti-escape closing in blend stop 4 has 20, and elastic anti-escape closing in blend stop 4 one end is fixed
Separating on mesh sheet mesh 5 opening, elastic anti-escape closing in blend stop 4 other end is unsettled, and each elasticity anti-escape closing in blend stop 4 is in spoke
Penetrating shape to gather along the mesh opening separating mesh sheet 3, elastic anti-escape closing in blend stop 4 free end stretches into separation mesh sheet 3 towards body 2
The side of blind end forms the funnel-form that outer imperial palace is little.Elastic anti-escape closing in blend stop 4 is made with carbon fibre, opens from body 2
Put end to be also sequentially reduced to blind end, each elasticity anti-escape closing in blend stop 4 width separated in mesh sheet 3.
When using the trawlnet with this device to carry out fishing operation, along with fishing boat is advanced, trawlnet opens, and separates mesh sheet 3 and exists
Water erects, has been drilled into liking the marine organisms upwards moved about to wear after the marine organisms of traw mouth encounter barrier
Cross separate mesh sheet 3, thus remain in outside cage structure 6；Encounter barrier to like being less than outermost separation through mesh and health
The marine organisms of mesh sheet 3 mesh then enter outmost cage structure 6 through the mesh of this separation mesh sheet 3, enter outmost
When the marine organisms of cage structure 6 touch the separation mesh sheet 3 of centre, the continuation that health separates mesh sheet 3 mesh less than centre is led to
Separate mesh sheet 3 mesh in the middle of crossing and creep into the cage structure 6 of centre, be trapped in body in the marine organisms in mid-level net box structure 6 equally
What body was minimum can enter in innermost cage structure 6, i.e. net capsule 1 by the separation mesh sheet 3 of innermost layer again, elastic anti-escape
Closing in blend stop has one-way trip function, and marine organisms are the resistance of suffered elastic anti-escape closing in blend stop in entering net capsule from net capsule
Power is less, and the marine organisms entering net capsule then are difficult to exit net capsule by the stop of elastic anti-escape closing in blend stop.So, at a net
Fishery harvesting in, do not like in the trawlnet net chamber being left in outside cage structure 6 of mesh, like the just major part through mesh and enter
In cage structure 6, and it is trapped in the fishery harvesting in cage structure 6 and can separate the most voluntarily by body size again, by body size
Difference enter different cage structure 6, while fishing for, then just can complete variety classes, different size of fishery harvesting
Natural separation, when taking fishery harvesting, extracts out the draw-string of draw-string opening and closing mouth, it is possible to take out the fishery harvesting in each cage structure 6 respectively, greatly
The workload of fishery harvesting sorting after big minimizing hauling.
Embodiment 2:
As in figure 2 it is shown, the truncated rectangular pyramids shape that trawlnet substantially falls in side after being fully extended, trawlnet net intracavity is provided with two separation
Mesh sheet 3, cage structure 7 in the body 2 after each separation mesh sheet 3 is respectively equipped with, interior cage structure 7 be connected with body 2 and
Be positioned at bottom body 2, separate mesh sheet 3 not along body 2 prop up completely time transverse section, net chamber arrange, but be obliquely installed, point
Off-network sheet 3 is trapezoidal, separate the base of mesh sheet 3 and two sides respectively with body 2 bottom and side rope ligation, separate mesh
Sheet 3 top margin not with body 2 ligation, and only tie up to body 2 top by two ropes and make separation mesh sheet 3 keep lateral attitude, because of
This axis separated when mesh sheet 3 is propped up completely with body 2 becomes angle structure, separates and leaves sky between mesh sheet 3 top margin and body 2 top
Gap, is separated mesh sheet 3 top margin and is connected by mesh sheet after with between body 2, and separation mesh sheet 3 top margin is connected bottom body 2 by rear mesh sheet
Pick up, so separate mesh sheet 3, body 2 and rear mesh sheet and just enclose the interior cage structure 7 of closing.Each interior cage structure 7
One drop can be formed before and after this interior cage structure 7.Separate mesh sheet 3 size of mesh from bottom to top to be gradually increased.Remaining is with real
Execute example 1.
When using the trawlnet with this device to carry out fishing operation, the marine organisms having been drilled into traw mouth encounter first
Separate after mesh sheet 3, like the marine organisms upwards moved about can because the space above interior cage structure 7 provides travelling space from
Row is swum in the space after first interior cage structure 7 by this space, likes the ocean through mesh and build are suitable raw
After thing then can separate mesh sheet 3 encountering first, sufficiently large mesh can be found to be forced through first along separating mesh sheet 3 inclined-plane
Separate mesh sheet 3 swim into first interior cage structure 7 and be caught in, like relatively big through mesh but build, or do not encounter first
The marine organisms separating mesh sheet 3 also upwards can grope along separating this inclined-plane of mesh sheet 3, and above interior cage structure 7, space enters
Depths, net chamber after first interior cage structure 7, hereafter, the marine organisms crossing first drop continue to divide again as described above
From, enter second interior cage structure 7, or enter net chamber deeper inside through a drop again, arrive net capsule 1.So fishery harvesting is carried out
Repeatedly natural separation, final fishery harvesting can substantially by the difference of kind and size be gathered in the most respectively multiple interior cage structure 7 and
In space after each interior cage structure 7, when sorting fishery harvesting after hauling, the fishery harvesting to natural classification is collected respectively, sorting work
Amount considerably reduces.
Embodiment 3:
As shown in Figure 3, Figure 4, being provided with a separator panel 8 in the net chamber of trawlnet, separator panel 8 is complete along body 2, net capsule 1
The trunnion axis cross section in net chamber when propping up is arranged, and separator panel 8 extends to net bottom from traw mouth, and the both sides of separator panel 8 are divided
It is not provided with a separation mesh sheet 3, separates mesh sheet 3 and net chamber is divided into two, thus there are two net capsules 1.Separate mesh sheet 3 and body 2
And separator panel 8 is simultaneously connected with, wherein the separation mesh sheet 3 above separator panel 8 is arranged along net transverse section, chamber, and position is in net chamber
Higher depth, thus above separator panel 8, constitute a cage structure 6；Separation mesh sheet 3 below separator panel 8 is inclined at
At nearly network interface, and be provided with space 9 between this separation mesh sheet 3 and separator panel 8, bottom this separation mesh sheet 3 and body 2 between with net after
Sheet is closed, cage structure 7 in therefore constituting.Remaining is with embodiment 2.
Net chamber is divided into more space with the combination separating mesh sheet 3 by separator panel 8, can implement more separation means by fishery harvesting
Carry out finer separation.Marine organisms, when network interface enters, separate by separating the selection of mesh sheet 3, enter corresponding separation
Net chamber, until net capsule 1 part, can directly carry out the harvesting of catches, reduce marine organisms traversing times, reduces Fish thorn and is hung on
Possibility in mesh, improves fishery harvesting quality.
Embodiment 4:
As it is shown in figure 5, separator panel 8 be respectively provided on two sides with twice separation mesh sheet 3, the net chamber of separator panel 8 upper and lower
In first separation mesh sheet 3 be all to be obliquely installed and arrange the most up space 9, separator panel 8 upper and lower net chamber in
Second separation mesh sheet 3 all along net transverse section, chamber arrange, and and body 2 and separator panel 8 between do not set space, such separator panel
In net chamber above in the of 8 formed two cage structures 6, in the net chamber below separator panel 8 formed two cage structures 6 and one embedding
It is placed on the interior cage structure 7 in previous cage structure 6.Remaining is with embodiment 3.
Embodiment 5:
The net chamber of trawlnet is provided with two separator panels 8, the level in two separator panels 8 and the trawlnet net chamber propped up completely
Shaft section is parallel.Following separator panel 8 is provided with inclination and separates mesh sheet 3 between bottom body 2, separator panel 8 above with
Between body 2 top, and it is respectively provided with separation mesh sheet 3 along net transverse section, chamber between two separator panels 8.Remaining is with embodiment 3.
Embodiment 6:
Separating mesh sheet 3 is monolithic, and forms with nylon tape braiding, and elastic anti-escape closing in blend stop 4 is also made with nylon tape.
Separating mesh sheet 3 mesh is rhomboid, and the Selection of fishes being suitable for the more flat profiles such as Stromateoides argenteus passes through.Remaining is with embodiment 1.
Happiness only through mesh and is not liked through net by the dragging span fishery harvesting segregation apparatus in the present embodiment when fishing for
Marine organisms disposably separate purpose.
Claims (8)
1. dragging span fishery harvesting segregation apparatus, is characterized in that including being located at the net capsule (1) of trawlnet blind end and separating mesh sheet
(3), separate mesh sheet (3) and be positioned in the net chamber of trawlnet and be detachably connected on body (2), separate the mesh chi of mesh sheet (3)
The very little size of mesh more than body (2), the mesh separating mesh sheet (3) is provided with elastic anti-escape closing in blend stop (4), the net of trawlnet
Chamber is provided with separator panel (8), separator panel (8) along body (2) prop up completely time net chamber shaft section arrange, or with net chamber axle
Cross section is parallel, and separator panel (8) extends to blind end from traw mouth, separator panel (8) be respectively provided on two sides with separation mesh sheet
(3), the separation mesh sheet (3) of separator panel (8) top is simultaneously connected with body (2) and separator panel (8).
Dragging span fishery harvesting segregation apparatus the most according to claim 1, is characterized in that separating mesh sheet (3) along body (2)
The net chamber cross-sectional direction formed when propping up is arranged, and separation mesh sheet (3) has multi-disc, separates mesh sheet (3) and encloses with body (2)
Some cage structures (6), and from the network interface end of trawlnet to blind end, the size of mesh respectively separating mesh sheet (3) is sequentially reduced.
Dragging span fishery harvesting segregation apparatus the most according to claim 1, is characterized in that separating mesh sheet (3) and body (2)
Axis when propping up completely becomes angle structure, and separation mesh sheet (3) side is connected with body (2), stays between opposite side and body (2)
Having space, be provided with the interior cage structure (7) of closing in the net chamber of trawlnet, interior cage structure (7) is by body (2), separation mesh sheet (3)
Enclosing with rear mesh sheet and form, rear mesh sheet is connected to body (2) and separates between mesh sheet (3).
Dragging span fishery harvesting segregation apparatus the most according to claim 1, is characterized in that elastic anti-escape closing in blend stop (4)
Having many, elastic anti-escape closing in blend stop (4) one end is fixed on the mesh opening separating mesh sheet (3), and elastic anti-escape is closed up
Blend stop (4) other end is unsettled, and each elasticity anti-escape closing in blend stop (4) is gathered along the mesh opening separating mesh sheet (3) radially,
Elastic anti-escape closing in blend stop (4) free end stretches into and separates mesh sheet (3) to form outer imperial palace towards the side of body (2) blind end little
Funnel-form.
5., according to the dragging span fishery harvesting segregation apparatus described in claim 1 or 2 or 3 or 4, it is characterized in that elastic anti-escape is received
Mouth blend stop (4) is made with carbon fibre.
6. according to the dragging span fishery harvesting segregation apparatus described in claim 1 or 2 or 3 or 4, separate mesh sheet (3) mesh in
Regular hexagon.
7. according to the dragging span fishery harvesting segregation apparatus described in claim 1 or 2 or 3 or 4, separate mesh sheet (3) mesh in
Rhombus.
8. according to the dragging span fishery harvesting segregation apparatus described in claim 1 or 2 or 3 or 4, separate mesh sheet (3) mesh in
Square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410492221.5A CN104285918B (en) | 2014-09-23 | 2014-09-23 | Dragging span fishery harvesting segregation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410492221.5A CN104285918B (en) | 2014-09-23 | 2014-09-23 | Dragging span fishery harvesting segregation apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104285918A CN104285918A (en) | 2015-01-21 |
| CN104285918B true CN104285918B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410492221.5A Active CN104285918B (en) | 2014-09-23 | 2014-09-23 | Dragging span fishery harvesting segregation apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106804544A (en) * | 2016-12-26 | 2017-06-09 | 浙江海洋大学 | A kind of trawlnet of PA monofilament mesh sheet structure |
| CN106614427A (en) * | 2016-12-29 | 2017-05-10 | 大连海洋大学 | Beam trawl capable of achieving shrimp and spiral-shell separation |
| CN109169548B (en) * | 2018-08-21 | 2021-05-18 | 浙江海洋大学 | Netting of trawl net and weaving method thereof |
| CN109463358A (en) * | 2018-11-27 | 2019-03-15 | 浙江海洋大学 | A kind of friendly otter-trawl |
| CN110506712A (en) * | 2019-08-27 | 2019-11-29 | 浙江海洋大学 | A kind of novel reduction by-catch trawlnet |
| CN112956454B (en) * | 2019-09-29 | 2022-03-29 | 浙江海洋大学 | Operation method for nested separated fishing catch object and capable of falling off trawl bag |
| CN111820193B (en) * | 2020-05-26 | 2021-10-26 | 浙江海洋大学 | Layered net bag type trawl net |
| CN111642469B (en) * | 2020-06-04 | 2022-08-19 | 中国水产科学研究院东海水产研究所 | Bag-shaped net and method for acquiring escape rate of caught object from trawl mesh by using same |
| CN111727941A (en) * | 2020-06-22 | 2020-10-02 | 中国水产科学研究院东海水产研究所 | Frame structure of bottom layer biological collection net in sea and mountain area |
| CN111631172A (en) * | 2020-06-22 | 2020-09-08 | 中国水产科学研究院东海水产研究所 | Groove-shaped frame type bottom layer swimming animal collecting net |
| CN112005971B (en) * | 2020-08-18 | 2022-03-29 | 浙江海洋大学 | Trawl equipment using camera monitoring and turtle escaping device |
| CN112005972B (en) * | 2020-08-18 | 2022-03-29 | 浙江海洋大学 | Tortoise removing trawl net structure with camera device |
| CN112450163B (en) * | 2020-11-03 | 2022-12-23 | 中国水产科学研究院南海水产研究所 | Double-layer net for collecting escaping catches |
| CN113261543B (en) * | 2021-05-17 | 2022-06-24 | 浙江省海洋水产研究所 | Rotary type selective trawl equipment for marine protection animals |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2118491C1 (en) * | 1996-02-05 | 1998-09-10 | Полярный научно-исследовательский институт морского рыбного хозяйства и океанографии им.Н.М.Книповича | Trawl with device for discharging small-sized fish |
| AU2021597A (en) * | 1997-02-21 | 1998-09-09 | Pade Thomsen | Size-sorting trawl and method of using same |
| JP2005110633A (en) * | 2003-10-10 | 2005-04-28 | Takanashi Katsuaki | Fish species classifying net for towing net fishery |
| KR100779591B1 (en) * | 2007-07-24 | 2007-11-30 | 대한민국 | Jellyfish separation and extermination net |
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