CN104304200B - A kind of flexible net expansing device - Google Patents
A kind of flexible net expansing device Download PDFInfo
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- CN104304200B CN104304200B CN201410487747.4A CN201410487747A CN104304200B CN 104304200 B CN104304200 B CN 104304200B CN 201410487747 A CN201410487747 A CN 201410487747A CN 104304200 B CN104304200 B CN 104304200B
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- 239000012530 fluid Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 230000033001 locomotion Effects 0.000 claims abstract description 7
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 230000033228 biological regulation Effects 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 7
- 238000007667 floating Methods 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 206010057071 Rectal tenesmus Diseases 0.000 description 5
- 208000012271 tenesmus Diseases 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000035807 sensation Effects 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- 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
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
Abstract
The invention discloses a kind of flexible net expansing device, on the trawlnet of fishing boat, described device includes flexible hydrodynamic float and flexible hydrodynamic sinker, flexible hydrodynamic float and flexible hydrodynamic sinker are connected on headline and ground rope respectively, flexible hydrodynamic float and flexible hydrodynamic sinker are flexible platelet, a plurality of setting rope is equipped with flexible hydrodynamic float and flexible hydrodynamic sinker, setting rope on flexible hydrodynamic float it is in parallel, setting rope on flexible hydrodynamic sinker it is also in parallel, when fishing boat traction fishing gear has relative motion with water, the fluid that flexible hydrodynamic float and flexible hydrodynamic sinker form concave curved heads on, fluid heads on towards fishing boat, the fluid through-hole of insertion is further respectively had on flexible hydrodynamic float and flexible hydrodynamic sinker.The present invention can improve the net expansing effect of trawlnet and use energy-saving effect, improve the safe and environment-friendly performance of trawlnet.
Description
Technical field
The present invention relates to a kind of marine fishery fishing tool, in particular, it is related to a kind of flexible net expansing device.
Background technology
A kind of important operating type in the fish production of trawl fishing China, network interface should magnify as far as possible during trawling,
So trawlnet to include area just big, thus the preferable catching rate for obtaining.The vertical opening of traw mouth is mainly by floating
Son and sinker drive headline and ground rope to pull open certain distance to upper and lower both direction to realize respectively, headline and sinker
Guiding principle spaces out more remote, and the vertical opening rate of traw mouth is higher, but conventional at present spherical float in high speed trawlnet often
The normal buoyancy deficiency that seems, it is impossible to headline is stably maintained at sea or is pressed close in the depth on sea, headline and ground rope
Between be difficult to pull open preferable distance；The submergence depth of another aspect sinker is also difficult to control to, and often contacts seabed, and with
The traveling of fishing boat is swept and scrapes sea bed, heavy damage fishing ground landforms and ecological environment, influences the research and development of fishing ground resource.This
Outward, traditional float, sinker have fixed shape, and weight is larger, and the resistance produced in water is also larger, can increase fishing boat and drag
Energy consumption during net, fishing net is difficult to compact gathering when drawing in for fear of float, the volume of sinker, fishing net.Publication No. CN2351960Y
Utility model disclose a kind of Float trawlnet on December 8th, 1999, its be rigid plastics processing hollow sphere, its feature
It is that spheroid is provided with four earrings, they are symmetrically distributed on the same tangent plane of spheroid two-by-two.The utility model simple structure, pricks
Knot is convenient, will not increase the resistance and cost of trawlnet, is particularly suitable for trawl with big meshes and uses.But the utility model and traditional buoys
Compare, simply weight saving under equal volume, still without substantially progressive in terms of buoyancy control, fishing net draw compactedness in.
The content of the invention
Existing trawlnet net expansing device can influence net expansing effect and energy-saving effect because of itself limitation of float sinker, also easily right
Fishing ground sea bed is damaged, to overcome these defects, the invention provides a kind of by improving flexible hydrodynamic float sinker
Design and improve the net expansing effect and energy-saving effect of trawlnet, and can eliminate and fishing ground sea bed is damaged during trawlnet use
, portable construction, the flexible net expansing device for easily manipulating.
The technical scheme is that：A kind of flexible net expansing device, on the trawlnet of fishing boat, described device includes flexibility
Hydrodynamic float and flexible hydrodynamic sinker, flexible hydrodynamic float and flexible hydrodynamic sinker are connected in headline and sink respectively
On sub- guiding principle, flexible hydrodynamic float and flexible hydrodynamic sinker are flexible platelet, flexible hydrodynamic float and flexible hydrodynamic(al)
A plurality of setting rope is equipped with power sinker, setting rope on flexible hydrodynamic float it is in parallel, the flexible hydrodynamic sinker of institute
On setting rope it is also in parallel, when fishing boat traction fishing gear and water have relative motion, flexible hydrodynamic float and flexible hydrodynamic sinker
The fluid for forming concave curved heads on, and fluid heads on towards fishing boat, and flexible hydrodynamic float the normal slope that heads on of fluid downwards,
The normal slope that the fluid of flexible hydrodynamic sinker heads on upwards, is also distinguished on flexible hydrodynamic float and flexible hydrodynamic sinker
It is provided with the fluid through-hole of insertion.The form and operation principle of flexible hydrodynamic float and flexible hydrodynamic sinker in the present apparatus are not
Traditional float and sinker is same as, the present apparatus is with the principle that generation lifting force is moved at certain inclination angle in a fluid using tablet
Float buoyancy and sinker tenesmus pulling force needed for traw mouth expansion offer, although flexible hydrodynamic float and flexible hydrodynamic force are sunk
Son is flexible platelet, but under the restraining force of setting rope and the collective effect of water flow impact pressure, can be formed and substantially determined
Shape, and one side concave curved facing forward heads on as the fluid for receiving water impact, and water flow impact pressure heads in inclined fluid
Component on upper generation vertical direction, so as to persistently provide flexible hydrodynamic float buoyancy and flexible hydrodynamic sinker tenesmus draw
Power, at the same time, the fluid through-hole on flexible hydrodynamic float and flexible hydrodynamic sinker can pass through again current, it is to avoid current
Impulsive force is all acted on flexible hydrodynamic float and flexible hydrodynamic sinker, so as to resistance when fishing boat tows trawlnet can be mitigated
Power, reduces energy consumption.
Preferably, float adjusting rope is connected with the flexibility hydrodynamic float of first, last two ends respectively, first, last two ends flexibility water
Sinker adjusting rope, the float on each flexible hydrodynamic float of first and end, flexible hydrodynamic sinker are connected with power sinker respectively
Adjusting rope, sinker adjusting rope are at least two, each float adjusting rope at least respectively with the upper end of flexible hydrodynamic float and under
End connection, top and bottom of each sinker adjusting rope at least respectively with flexible hydrodynamic sinker are connected, first, last two ends flexibility hydrodynamic(al)
Float linkage rope is connected between the float adjusting rope of power float, between the sinker adjusting rope of first, last two ends flexibility hydrodynamic sinker
Sinker linkage rope is connected with, the setting rope on each flexible hydrodynamic float is connected in parallel in float linkage rope respectively, each flexible hydrodynamic force
Setting rope on sinker is connected in parallel in sinker linkage rope respectively, and float adjusting rope and sinker adjusting rope are connected to two and are located at
In regulation rope fixator on fishing boat, regulation rope fixator is provided with many reel for ropes, and float adjusting rope and sinker adjusting rope are distinguished
It is wrapped on corresponding reel for rope.Float adjusting rope and sinker adjusting rope are respectively intended to adjust flexible hydrodynamic float and flexible hydrodynamic(al)
The angle of inclination of power sinker, to obtain suitable flexibility hydrodynamic float buoyancy and soft according to fishing boat and water speed of related movement
Property hydrodynamic sinker tenesmus pulling force.When there is length difference between the float adjusting rope of the flexible hydrodynamic float top and bottom of connection
When, flexible hydrodynamic float will be inclined, and the size of length difference determines the size of inclined degree.Sinker adjusting rope is also with same
Mode adjusts the inclined degree of flexible hydrodynamic sinker.Different float adjusting ropes or sinker adjusting rope is enterprising in corresponding reel for rope
Length difference between the different degrees of winding of row can just change different float adjusting ropes or between sinker adjusting rope.By linkage rope
Drive, other flexible hydrodynamic floats between first, last two ends, flexible hydrodynamic sinker also can be with the flexible water at first, last two ends
Power float, flexible hydrodynamic sinker synchronous change inclination angle.
Preferably, the reel for rope is rotatably connected in regulation rope fixator, and drive device is connected with reel for rope.Reel for rope can
Rotated by drive device, so as to easily wind different float adjusting ropes or sinker adjusting rope, be convenient for flexible hydrodynamic(al)
The tilt adjustment of power float, flexible hydrodynamic sinker.
Preferably, sinker is provided with radar range finding sensor and radio-frequency signal generator, thunder when fishing boat is advanced and trawlnet opens
Connected towards seabed, radar range finding sensor and radio-frequency signal generator signal up to the detection faces of distance measuring sensor, sinker adjusting rope institute
Reel for rope drive device in the regulation rope fixator of connection is servomotor, is provided with the servo controller of the servomotor and institute
State the RF Receiving Device of radio-frequency signal generator matching.Radar range finding sensor be used for detecting flexible hydrodynamic sinker and sea bed away from
From the detection threshold value of settable radar range finding sensor, reaches when radar range finding sensor is detected with the distance of sea bed before work
During to the detection threshold value, radar range finding sensor-triggered sends radiofrequency signal, the servo control of servomotor by radio-frequency signal generator
RF Receiving Device in device processed produces working signal to start servomotor work again after receiving the radiofrequency signal, adjusts sinker
Reel for rope in the connected regulation rope fixator of section rope adjusts rotation, and flexible hydrodynamic sinker is changed by sinker adjusting rope
Inclination angle, the flexible hydrodynamic sinker buoyancy of appropriateness increase, so that flexible hydrodynamic sinker keeps a safe distance with sea bed, it is to avoid
Flexible hydrodynamic sinker is bottomed out to be swept with sea bed and scraped, and protects sea bed landforms and ecological environment damage.
Preferably, tie point of the setting rope on flexible hydrodynamic float and flexible hydrodynamic sinker is respectively in flexible water
It is symmetrical on power float and flexible hydrodynamic sinker.So can ensure that setting rope in flexible hydrodynamic float and flexible hydrodynamic(al)
The mechanical structure of equalization stable is formed on power sinker, is easy to flexible hydrodynamic float and flexible hydrodynamic sinker to keep the appearance of stabilization
State, to ensure to reach preferable trawlnet net expansing effect.
Preferably, being connected with flexible transverse expansion board on the perpendicular guiding principle of trawlnet, it is a plurality of fixed also to be provided with flexible transverse expansion board
Shape rope, the setting rope of flexible transverse expansion board is connected in parallel on side and connects on rope, and side is even restricted and is connected to the float adjusting rope and sinker of homonymy
Between adjusting rope, when fishing boat traction fishing gear has relative motion with water, the fluid that flexible transverse expansion board forms concave curved heads on, two
Fluid heads on and is respectively facing fishing boat outside.The operation principle of flexible transverse expansion board and flexible hydrodynamic float and flexible hydrodynamic force
Sinker is identical, and its effect is the perpendicular guiding principle of lateral tension trawlnet under flow action, makes traw mouth lateral magnification.
Preferably, flexible hydrodynamic float and flexible hydrodynamic sinker are made of canvas.The flexibility being made of canvas
Hydrodynamic float and flexible hydrodynamic sinker are light, foldable, easily tidy up, and fishing net can draw in more compact when receiving net.
Preferably, flexible transverse expansion board is made of canvas.The flexible transverse that is made of canvas expands that mesh sheet is light, can roll over
It is folded, easily to tidy up, fishing net can draw in more compact when receiving net.
The beneficial effects of the invention are as follows：
Improve the net expansing effect of trawlnet.Buoyancy and tenesmus drawing that the present invention is expanded needed for netting using fluid dynamic generation trawlnet
Power, buoyancy and tenesmus pulling force can be strengthened or weaken as needed, overcome traditional trawlnet mainly by float and sinker cumulative volume
Determine buoyancy size, and the unmodifiable defect of buoyancy size.
The resistance of float and sinker is reduced, is improved trawlnet and is used energy-saving effect.The present invention is acted on using fluid dynamic
When providing necessary power to expand net on flexible hydrodynamic float and flexible hydrodynamic sinker, flexible hydrodynamic float and flexibility hydrodynamic(al)
Fluid through-hole on power sinker can moderately reduce the effective area that fluid heads on, and weaken the direct impulsive force of current, so as to reduce
The resistance of flexible hydrodynamic float and flexible hydrodynamic sinker, reduces energy consumption during trawling.
Improve the safe and environment-friendly performance of trawlnet.Flexible hydrodynamic sinker in the present invention can based on itself to sea bed away from
From buoyancy adjustment is carried out, the depth of appropriate safety is maintained, mitigate the destruction to sea bed, it is ensured that the research and development in fishing ground, from
And for fish production provides the environmentally friendly tool of production.
Portable construction.The present invention makees float and sinker using flexible material, and lightweight, small volume is easy to operate.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the invention；
Fig. 2 is a kind of structural representation under flexible hydrodynamic float working condition in the present invention.
In figure, 1- flexibility hydrodynamic floats, 2- flexibility hydrodynamic sinkers, 3- setting ropes, 4- fluids head on, and 5- fluids lead to
Hole, 6- regulation rope fixators, 7- float adjusting ropes, 8- sinker adjusting ropes, 9- float linkage ropes, 10- sinker linkage ropes, 11- is floated
Even restrict sub- guiding principle, 12- ground ropes, 13- flexible transverse expansion boards, 14- sides.
Specific embodiment
The invention will be further described for specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1：
As shown in Figure 1 and Figure 2, a kind of flexible net expansing device, on the trawlnet of fishing boat, described device includes flexible hydrodynamic(al)
Power float 1 and flexible hydrodynamic sinker 2, flexible hydrodynamic float 1 and flexible hydrodynamic sinker 2 are connected in headline and sink respectively
On sub- guiding principle, flexible hydrodynamic float 1 and flexible hydrodynamic sinker 2 are flexible platelet, are rectangle, and are made of canvas.Often
It is have six setting ropes 3 on individual flexible hydrodynamic float 1 and flexible hydrodynamic sinker 2, six setting ropes 3 are divided into upper, middle and lower
Three rows, six setting ropes 3 on flexible hydrodynamic float 1 and flexible hydrodynamic sinker 2 are contact respectively in flexible hydrodynamic force
It is symmetrical on float 1 and flexible hydrodynamic sinker 2, it is upper with flexible hydrodynamic sinker 2 positioned at flexible hydrodynamic float 1 respectively
End both sides, lower end both sides and middle part both sides, i.e. setting rope 3 are connected in the corner of flexible hydrodynamic float 1 and flexible hydrodynamic sinker 2
On middle waist.Setting rope 3 on flexible hydrodynamic float 1 it is in parallel, setting rope 3 on flexible hydrodynamic sinker 2 also
It is in parallel.Fishing boat is advanced and trawlnet is when opening, flexible hydrodynamic float 1 and flexible hydrodynamic sinker 2 under the constraint of setting rope 3 with
And the arc cylinder of approximate tile is formed under the impact of current, the concave curved side of the cylinder is that the fluid for receiving water impact is met
Face 4, fluid heads on 4 towards fishing boat, and flexible hydrodynamic float 1 fluid head on 4 normal slope downwards, flexible hydrodynamic force is sunk
The fluid of son 2 head on 4 normal slope upwards, further respectively have 50 on flexible hydrodynamic float 1 and flexible hydrodynamic sinker 2
The fluid through-hole 5 of insertion, so promotes flexible net expansing device to have larger expansionary force and less water resistance, increases traw mouth
Vertically and horizontally effectively open, reduce oil consumption.One group of float adjusting rope is connected with respectively on the flexibility hydrodynamic float 1 of first, last two ends
7, one group of sinker adjusting rope 8 is connected with the flexibility hydrodynamic sinker 2 of first, last two ends respectively, every group of float adjusting rope 7 is respectively three,
Including upper end float adjusting rope, middle position float adjusting rope and lower end float adjusting rope, three float adjusting ropes 7 respectively with flexible water
The upper end of power float 1, middle waist and lower end system connect.Equally, every group of sinker adjusting rope 8 is also respectively three, including upper end sinker is adjusted
Section rope, middle position sinker adjusting rope and lower end sinker adjusting rope, three sinker adjusting ropes 8 are upper with flexible hydrodynamic sinker 2 respectively
End, middle waist and lower end system connect.One group of float connection is connected between two groups of float adjusting ropes 7 of first, last two ends flexibility hydrodynamic float 1
Running rope 9, is connected with one group of sinker linkage rope 10, float linkage between the sinker adjusting rope 8 of first, last two ends flexibility hydrodynamic sinker 2
Rope 9, sinker linkage rope 10 is respectively three, is also arranged by upper, middle and lower position respectively, and three float linkage ropes 9 adjust two groups of floats
Rope 7 connects one to one by upper, middle and lower position, and the setting rope 3 on each flexible hydrodynamic float 1 is connected in parallel on float linkage rope 9 respectively
On；Likewise, three sinker linkage ropes 10 also connect one to one two groups of sinker adjusting ropes 8 by upper, middle and lower position, each flexibility
Setting rope 3 on hydrodynamic sinker 2 is connected in parallel in sinker linkage rope 10 respectively.Trawlnet is dragged by single fishing boat, float adjusting rope 7
Two are connected in the regulation rope fixator 6 on fishing boat with sinker adjusting rope 8, and a regulation rope fixator 6 is used for
Fixed float adjusting rope 7, another is used to fix sinker adjusting rope 8, and each regulation rope fixator 6 is provided with six roots of sensation reel for rope, two
Six roots of sensation float adjusting rope 7 and two groups of common six roots of sensation sinker adjusting ropes 8 are respectively wound around on corresponding reel for rope group altogether.The reel for rope is rotated
It is connected in regulation rope fixator 6, and drive device is connected with reel for rope.Flexible hydrodynamic sinker 2 is provided with radar range finding sensing
Device and radio-frequency signal generator, towards seabed, radar range finding is passed the detection faces of radar range finding sensor when fishing boat is advanced and trawlnet opens
Sensor and radio-frequency signal generator signal are connected, and the reel for rope drive device in regulation rope fixator 6 that sinker adjusting rope 8 is connected is to watch
Motor is taken, the RF Receiving Device matched with the radio-frequency signal generator is provided with the servo controller of the servomotor.Float is adjusted
The reel for rope drive device in regulation rope fixator 6 that section rope 7 is connected is manual drive worm gear device, the section rope fixator
Each reel for rope on 6 is connected with the worm-wheel shaft of a worm gear respectively, and the worm screw engaged with the worm gear is provided with rocking handle.Erect the both sides of trawlnet
One group is respectively connected with guiding principle and is all the flexible transverse expansion board 13 that rectangle canvas piece is made, every group of three flexible transverse expansion boards 13,
Arranged by upper, middle and lower position on same perpendicular guiding principle, six setting ropes 3 also are provided with each flexible transverse expansion board 13, be divided into three
Group, every group two, each group setting rope 3 is connected to the front and back ends and middle waist of flexible transverse expansion board 13, flexible transverse expansion
Front end setting rope, middle waist setting rope, rear end setting rope length shorten successively on plate 13.One group of side is respectively equipped with by the perpendicular guiding principle in both sides to connect
Rope 14, side connects rope 14 and is located on the inside of flexible transverse expansion board 13, i.e., side even restricts 14 between two groups of flexible transverse expansion boards 13.
Every group three, the setting rope 3 of flexible transverse expansion board 13 is connected in parallel on side and connects on rope 14, and side connects the floats tune that rope 14 is connected to homonymy
Even rope 14 is connected to upper end and floats the connected side of front end setting rope between section rope 7 and sinker adjusting rope 8, on flexible transverse expansion board 13
Between sub- adjusting rope and lower end sinker adjusting rope, even rope 14 is connected to middle position float adjusting rope with for the middle connected side of waist setting rope
Between the sinker adjusting rope of position, even rope 14 is connected between the sinker adjusting rope of lower end the connected side of rear end setting rope and upper end sinker is adjusted
Between section rope.When fishing boat traction fishing gear has relative motion and the traveling of fishing boat straight line with water, from the observation of fishing boat direction, two groups flexible horizontal
It is arranged in "eight" shape to the two same horizontally-arranged flexible transverse expansion boards 13 in expansion board 13, flexible transverse expansion board 13 exists
Tile cylinder is formed under water impact and setting rope limitation, cylinder concave curved portion heads on for fluid, and fluid heads on towards fishing boat, together
The normal that the one horizontally-arranged fluid of flexible transverse expansion board 13 heads on is gathered to the axis of fishing boat, and with fishing boat axis Cheng Rui
Angle angle.
During fishing operation, the upper end float adjusting rope of float adjusting rope 7 and the extension elongation of lower end float adjusting rope pass through
Manually adjust, generally need to only adjust the overhang of upper end float adjusting rope, by the rocking handle rotary worm during adjustment, and then band
The reel for rope that dynamic worm-gear driven upper end float adjusting rope is wound so that upper end float adjusting rope overhang is adjusted less than lower end float
Rope overhang, float adjusting rope 7 is tensioned under water flow impact pressure effect, due to upper end float adjusting rope and lower end float adjusting rope
Between there is length difference, thus float 1 is inclined, and produces lift after receiving water impact.The upper end sinker regulation of sinker adjusting rope 8
The extension elongation of rope and lower end sinker adjusting rope is then adjusted by an automatic regulating system, generally need to only adjust upper end sinker regulation
The overhang of rope, the servomotor of the reel for rope that can be wound by button control upper end sinker adjusting rope during adjustment so that upper end
Sinker adjusting rope overhang exceeds lower end sinker adjusting rope overhang, due between upper end sinker adjusting rope and lower end sinker adjusting rope
There is length difference, thus flexible hydrodynamic float 1 inclines, and produce lower pressure after receiving water impact.Similarly, due to flexible horizontal
It is different to front end setting rope, middle waist setting rope, rear end setting rope length on expansion board 13, it is common in setting rope tension and water impact
Under same-action, flexible transverse expansion board 13 is had angle with water (flow) direction, and current are produced to flexible transverse expansion board 13 and laterally pushed away
Power.When fishing boat is advanced, automatic regulating system is transferred to automatic control mode, and radar range finding sensor real-time monitoring flexibility hydrodynamic force is sunk
Son 2 and the distance of sea bed, the detection threshold value of settable radar range finding sensor before work, when radar range finding sensor detect with
When the distance of sea bed reaches the detection threshold value, radar range finding sensor-triggered sends radiofrequency signal, servo by radio-frequency signal generator
RF Receiving Device in the servo controller of motor produces working signal to start servomotor again after receiving the radiofrequency signal
Work, makes the reel for rope in the regulation rope fixator that sinker adjusting rope connected adjust rotation, is changed by sinker adjusting rope
Sinker inclination angle, appropriateness increase sinker buoyancy, so that sinker keeps a safe distance with sea bed, it is to avoid sinker is bottomed out to be sent out with sea bed
Life is swept and is scraped, and protects sea bed landforms and ecological environment damage.
Embodiment 2：
Every group of float adjusting rope 7 is two, and every group of sinker adjusting rope 8 is two, every group of float adjusting rope 7 only with flexible water
The top and bottom connection of power float 1, the top and bottom of every group of sinker adjusting rope 8 only with flexible hydrodynamic sinker 2 are connected.
Accordingly, float linkage rope 9, sinker linkage rope 10 are respectively two, each flexible transverse expansion board 13, flexible hydrodynamic float 1
Be have four setting ropes 3 on flexible hydrodynamic sinker 2, the reel for rope in each regulation rope fixator 6 also be four.Side per side
Rope 14 is also four.Remaining is with embodiment 1.
Claims (7)
1. a kind of flexible net expansing device, on the trawlnet of fishing boat, described device includes flexible hydrodynamic float（1）With flexible water
Power sinker（2）, flexible hydrodynamic float（1）With flexible hydrodynamic sinker（2）It is connected on headline and ground rope respectively, its
It is characterized in flexible hydrodynamic float（1）With flexible hydrodynamic sinker（2）It is flexible platelet, flexible hydrodynamic float（1）With
Flexible hydrodynamic sinker（2）On be equipped with a plurality of setting rope（3）, the flexible hydrodynamic float of institute（1）On setting rope（3）And
Connection, the flexible hydrodynamic sinker of institute（2）On setting rope（3）Also it is in parallel, it is flexible when fishing boat traction fishing gear has relative motion with water
Hydrodynamic float（1）With flexible hydrodynamic sinker（2）The fluid for forming concave curved heads on（4）, fluid heads on（4）Towards fishing boat, and
Flexible hydrodynamic float（1）Fluid head on（4）Normal slope downwards, flexible hydrodynamic sinker（2）Fluid head on（4）'s
Normal slope is upward, flexible hydrodynamic float（1）With flexible hydrodynamic sinker（2）On further respectively have the fluid through-hole of insertion
（5）, first, last two ends flexibility hydrodynamic float（1）It is upper to be connected with float adjusting rope respectively（7）, first, last two ends flexibility hydrodynamic sinker
（2）It is upper to be connected with sinker adjusting rope respectively（8）, each flexible hydrodynamic float of first and end（1）, flexible hydrodynamic sinker（2）On
Float adjusting rope（7）, sinker adjusting rope（8）It is at least two, each float adjusting rope（7）It is at least floating with flexible hydrodynamic force respectively
Son（1）Top and bottom connection, each sinker adjusting rope（8）At least respectively with flexible hydrodynamic sinker（2）Top and bottom
Connection, first, last two ends flexibility hydrodynamic float（1）Float adjusting rope（7）Between be connected with float linkage rope（9）, first, last two ends
Flexible hydrodynamic sinker（2）Sinker adjusting rope（8）Between be connected with sinker linkage rope（10）, each flexible hydrodynamic float（1）On
Setting rope（3）Float linkage rope is connected in parallel on respectively（9）On, each flexible hydrodynamic sinker（2）On setting rope（3）It is in parallel respectively
In sinker linkage rope（10）On, float adjusting rope（7）With sinker adjusting rope（8）It is connected to two regulations on fishing boat
Rope fixator（6）On, regulation rope fixator（6）It is provided with many reel for ropes, float adjusting rope（7）With sinker adjusting rope（8）Respectively
It is wrapped on corresponding reel for rope.
2. flexible net expansing device according to claim 1, it is characterized in that the reel for rope is rotatably connected on regulation rope fixator
（6）On, and drive device is connected with reel for rope.
3. flexible net expansing device according to claim 2, it is characterized in that flexible hydrodynamic sinker（2）It is provided with radar range finding
Sensor and radio-frequency signal generator, the detection faces of radar range finding sensor towards seabed, survey by radar when fishing boat is advanced and trawlnet opens
Connected away from sensor and radio-frequency signal generator signal, sinker adjusting rope（8）The regulation rope fixator for being connected（6）On reel for rope drive
Device is servomotor, and the radio frequency reception dress matched with the radio-frequency signal generator is provided with the servo controller of the servomotor
Put.
4. flexible net expansing device according to claim 1, it is characterized in that setting rope（3）In flexible hydrodynamic float（1）With
Flexible hydrodynamic sinker（2）On tie point respectively in flexible hydrodynamic float（1）With flexible hydrodynamic sinker（2）Upper symmetrical point
Cloth.
5. flexible net expansing device according to claim 1, it is characterized in that being connected with flexible transverse expansion board on the perpendicular guiding principle of trawlnet
（13）, flexible transverse expansion board（13）On also be provided with a plurality of setting rope（3）, flexible transverse expansion board（13）Setting rope（3）And
Side is associated in even to restrict（14）On, side is even restricted（14）It is connected to the float adjusting rope of homonymy（7）With sinker adjusting rope（8）Between, fishing boat
When traction fishing gear has relative motion with water, flexible transverse expansion board（13）The fluid for forming concave curved heads on, and fluid heads on towards fishing
Ship.
6. the flexible net expansing device according to claim 1 or 2 or 3 or 4 or 5, it is characterized in that flexible hydrodynamic float（1）With
Flexible hydrodynamic sinker（2）It is made of canvas.
7. flexible net expansing device according to claim 5, it is characterized in that flexible transverse expansion board（13）It is made of canvas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410487747.4A CN104304200B (en) | 2014-09-23 | 2014-09-23 | A kind of flexible net expansing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410487747.4A CN104304200B (en) | 2014-09-23 | 2014-09-23 | A kind of flexible net expansing device |
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| Publication Number | Publication Date |
|---|---|
| CN104304200A CN104304200A (en) | 2015-01-28 |
| CN104304200B true CN104304200B (en) | 2017-06-06 |
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| CN201410487747.4A Active CN104304200B (en) | 2014-09-23 | 2014-09-23 | A kind of flexible net expansing device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| NO343812B1 (en) * | 2017-04-07 | 2019-06-11 | Remoey Sea Group As | Arrangement for manoeuvring a boat |
| CN109644955B (en) * | 2018-12-11 | 2021-05-18 | 浙江省海洋水产研究所 | Device and method for catching bottom layer fish resources in middle and deep sea |
| CN109774870B (en) * | 2019-01-29 | 2020-03-17 | 浙江省海洋水产研究所 | Structure and method for controlling opening and closing of trawl by unmanned ship |
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| KR100987801B1 (en) * | 2010-02-11 | 2010-10-13 | 차혜진 | Fishing net havnig kite |
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| GB216418A (en) * | 1923-09-06 | 1924-05-29 | Andre Eugene Marty | Improvements in and relating to the towing and opening of drag nets for fishing |
| US4914848A (en) * | 1988-02-08 | 1990-04-10 | Nichimo Co., Ltd. | Trawl net |
| CN103168754A (en) * | 2013-03-29 | 2013-06-26 | 中国水产科学研究院东海水产研究所 | Method enabling trawl net to vertically expand |
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| CN104304200A (en) | 2015-01-28 |
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