CN208863388U - A kind of drift fish-egg, larva and juvenile investigate netting gear - Google Patents
A kind of drift fish-egg, larva and juvenile investigate netting gear Download PDFInfo
- Publication number
- CN208863388U CN208863388U CN201821504809.8U CN201821504809U CN208863388U CN 208863388 U CN208863388 U CN 208863388U CN 201821504809 U CN201821504809 U CN 201821504809U CN 208863388 U CN208863388 U CN 208863388U
- Authority
- CN
- China
- Prior art keywords
- netting gear
- net
- larva
- juvenile
- net cage
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The utility model discloses a kind of drift fish-egg, larva and juveniles to investigate netting gear, including net cage and catching net, the catching net is logical to have the first opening and the second opening, first opening is connected to by netting gear connector with netting gear installation, netting gear connector one end is fixedly mounted on the catching net by buckle structure, second opening is provided with filter device, and the second open upper edge edge is provided with floating structure.The dismountable netting gear frame and netting gear connector of the utility model setting keep netting gear easy to loading and unloading rapidly, increase substantially the convenience of carrying, reduce occupied space；It is provided with stretching and positioning rope, so that net cage and catching net fixation are stablized, not by river bottom influences；It is provided with filter device, the sundries such as the floating material in filtering river can be effectively intercepted and enter in catching net, avoid the acquisition for influencing ovum, larva and juvenile；It is additionally provided with hangnail device, prevents larva and juvenile from escaping.
Description
Technical field
The utility model belongs to fishery acquisition technique field, and in particular to a kind of drift fish-egg, larva and juvenile investigate netting gear.
Background technique
In recent years, fresh water fishery resource there are the stock of fish minimize and its habitat by destroy the problems such as, protection
Work is increasingly urgent to.It is meaningful to the protection of fish resources great to carry out fish stock assessment work.Fish early stage resource is fish
Important composition content in class stock assessment is the important technical of habitat investigation.Fish early stage resource mainly includes fish
The resources such as ovum, larva and juvenile, both can be used as the important indicator of stock of fish amount As-Is Assessment, also can be used as and judge fish
Important evidence of the spawning place in waters range.Therefore, it is necessary to carry out investigation work to fish-egg, larva and juvenile.
Currently, having formulated relevant standard to the acquisition method of drift fish-egg, larva and juvenile, but in specific execute-in-place
When have certain limitations condition.For example, acquiring drift fish-egg at present, the method for larva and juvenile is not suitable for all rivers or river
Section, works be primarily present following problems in this respect:
1, catching net is low in the presence of the convenience of carrying, takes up space the problems such as big；
2, there are catching nets to be not fixed firmly in the river of chad substrate；
3, the sundries such as floating material in river enter to there is ovum, larva and juvenile acquisition in catching net and influence.
Utility model content
The purpose of this utility model is to provide a kind of drift fish-egg, larva and juveniles to investigate netting gear, easy to carry, fix tightly
Gu and the sundries such as floating material in river can be prevented to enter.
To achieve the goals above, the technical solution of the utility model are as follows: a kind of drift fish-egg, larva and juvenile investigate net
Tool, including net cage and catching net, the catching net pass through netting gear connector and the fishing mouth being arranged on the net cage and institute
It states net cage to be connected, the catching net has the first opening and the second opening, and first opening passes through netting gear connector and institute
Fishing mouth installation connection is stated, netting gear connector one end is fixedly mounted on the catching net by buckle structure, the other end
It is fixed at the fishing mouth, second opening is provided with filter device, and the second open upper edge edge is provided with drift
Floating structure.
When the utility model is used, the net cage is in suspended state, fishing mouth is located under the water surface, the fishing
The opening of netting gear second suspends at surface of water under the action of floating structure.
Preferably, the catching net is rectangular cone net, second opening is greater than described first and is open, described second
Opening is provided with drawstring, and described drawstring one end is connected to the catching net, described fixed rope one end by four fixed ropes
It is fixed on the drawstring, the other end is symmetrically fixed on second opening quadrangle, and the drawstring other end is fixed on fixture,
And so that drawstring and catching net is in straight condition, prevent catching net from collapsing, influence fishing and collect.
Preferably, the second opening lower edge is provided with weighted lever, floats second opening in top edge and tie
Always it is in open configuration under the double action of structure and lower edge weighted lever, is collected convenient for fishing.
Preferably, the floating structure be along the evenly arranged foam ball of the second open upper edge, it is light-weight, float
Power is big.
Preferably, net cage is square structure, it is fixedly mounted by bottom net cage frame, the net cage frame includes two
Root long fixed link and two short fixed links pass through joinery and its construction plug connection, the long fixed link both ends between adjacent fixed link
It is also provided with vertical mounting hole, it is solid that the upward net cage for fixing the vertical selvage of the net cage is plugged in the mounting hole
Determine component.
Preferably, the net cage fixation member is divided into three parts in the vertical direction, top is cone, middle part packet
Upper half cylinder and lower half cone are included, lower part is straight cylinder, and the diameter of the cylinder and straight cylinder is equal to the mounting hole
Aperture, such structure can effectively prevent net cage upper end de- from the net cage fixation member upper end while facilitating installation
It falls, increases the stability of installation.
In the technical solution of the utility model, the net cage frame or net cage fixation member have certain buoyancy, cooperation
The gravity of net cage and itself makes the net cage be in suspended state.
Preferably, the net cage fixation member from top to bottom three parts length ratio be 1:4:5.
Preferably, first opening is also equipped with the hangnail device towards net cage, formed by catching net direction
The half-duplex channel of net cage, avoids larva and juvenile from fleeing from.
Preferably, the filter device is the double-deck netting gear of 5 centimeters of meshes, guaranteeing that it is same that fish-egg and larva and juvenile pass through
When, effectively filter the impurity such as water plant of floating.
Preferably, the bevel edge of catching net is provided with mounting rod, catching net is made to be in open configuration always, prevents it
It inwardly collapses, is collected convenient for fishing.
Preferably, the net cage quadrangle is equipped with positioning rope, by the positioning rope, the net cage is fixed on water
In, it prevents it because water flow is mobile or offset, influences collection effect.
Preferably, the netting gear connector is cylindrical shape, the buckle structure is rotary buckle, including is arranged in netting gear
Convex block on connector circumference and the snap ring being socketed in outside netting gear connector, the snap ring inner wall is equipped with rotary card slot, such structure
Fixation is stablized, easy to loading and unloading.When in use, by first open end be socketed in the netting gear connector and snap ring it
Between, snap ring is rotated, is caught in convex block in card slot, completes to fix.
The beneficial effects of the utility model have:
1, dismountable netting gear frame and netting gear connector keep netting gear easy to loading and unloading rapidly, increase substantially the convenient of carrying
Property reduces occupied space；
2, by stretching and positioning rope, so that net cage and catching net fixation are stablized, not by river bottom influences,
And the limited width in river, it is also more convenient using drawstring and positioning rope；
3, it is provided with filter device, the sundries such as the floating material in filtering river can be effectively intercepted and enter in catching net,
Avoid influencing the acquisition of ovum, larva and juvenile.
4, it is provided with hangnail device, prevents larva and juvenile from escaping, increases the accuracy of acquisition.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Fig. 2 is the structural schematic diagram of the utility model embodiment net cage.
Fig. 3 is the structural schematic diagram of the utility model embodiment catching net.
Fig. 4 is the structural schematic diagram of the utility model embodiment netting gear structure.
Fig. 5 is the structural schematic diagram of the utility model embodiment hangnail device.
Fig. 6 is the structural schematic diagram of the utility model embodiment net cage frame and net cage fixation member.
Items are respectively as follows: 1 net cage in figure, 2 catching nets, 3 fishing mouths, 4 netting gear connectors, 5 buckle structures, 6 filter devices,
7 floating structures, 8 drawstrings, 9 fixed ropes, 10 weighted levers, 11 convex blocks, 12 snap rings, 13 card slots, 14 hangnail devices, 15 half-duplex channels,
16 mounting rods, 17 net cage frames, 18 long fixed links, 19 short fixed links, 20 mounting holes, 21 net cage fixation members, 22 positioning ropes, A
Net cage fixation member top, B net cage fixation member middle part, C net cage fixation member lower part, a first are open, and b second is open.
Specific embodiment
The technical solution of the utility model is described in detail below in conjunction with embodiment and attached drawing, needs to illustrate
It is, in embodiment, the orientation such as top edge, lower edge, top, lower part and positional relationship, is for embodiment in installation and reality
Border use when state or for attached drawing.Also, in the examples below that, in the case where not doing in addition explanation,
It is general strapped fixed by cord system between each component.
Embodiment 1
As shown in Fig. 1 ~ 3, a kind of drift fish-egg, larva and juvenile investigate netting gear, including net cage 1 and catching net 2, described to catch
Dredger tool 2 is connected by netting gear connector 4 and the fishing mouth 3 being arranged on the net cage 1 with the net cage 1, the fishing net
With the first opening a and the second opening b, the first opening a is installed by netting gear connector 4 with the fishing mouth 3 to be connected to tool 2,
Described 4 one end of netting gear connector is fixedly mounted on the catching net 2 by buckle structure 5, and the other end is fixed on the fishing
At mouth 3, filter device 6 is provided at the second opening b, second opening end b top edge edge is provided with floating structure
7。
When the present embodiment is in use, the net cage 1 is in suspended state, and fishing mouth 3 is located under the water surface, and described second
Opening b suspends at surface of water under the action of floating structure 7.
Embodiment 2
As shown in Fig. 1 ~ 3, a kind of drift fish-egg, larva and juvenile investigate netting gear, including net cage 1 and catching net 2, the net
Fishing mouth 3 is provided in the middle part of 1 one side wall of case, the catching net 2 is the taper netting gear of both ends perforation, and the first opening a is logical
It crosses netting gear connector 4 to be connected to the fishing mouth 3 installation, described 4 one end of netting gear connector is fixedly mounted on described by buckle structure 5
On catching net 2, the other end is fixed at the fishing mouth 3, is provided with filter device 6 at the second opening a, and described second
The opening end b top edge edge is provided with floating structure 7.
When the present embodiment is in use, the net cage 1 is in suspended state, and fishing mouth 3 is located under the water surface, and described second
Opening b suspends at surface of water under the action of floating structure 7.
As shown in figure 3, the catching net 2 is rectangular cone net, the second opening b is greater than the first opening a, described
It is provided with drawstring 8 at second opening b, described 8 one end of drawstring is connected to the catching net 2 by four fixed ropes 9, described solid
Surely the drawstring 8 is fixed in 9 one end of restricting, and the other end is symmetrically fixed on second tetra- jiaos of b of the opening, and 8 other end of drawstring is solid
It is scheduled on the fixture on river side, when in use, tenses drawstring 8, drawstring 8 and catching net 2 are in straight condition, prevent from catching
Netting gear 2 collapses, and influences fishing and collects.
Further, the second opening b lower edge is provided with weighted lever 10, floats the second opening b in top edge
It is in open configuration always under the double action of floating structure 7 and lower edge weighted lever 10, is collected convenient for fishing.
Also, in the present embodiment, the floating structure 7 is along the second opening evenly arranged foam in the top edge b
Ball, light-weight, buoyancy is big.
As shown in figure 4, the netting gear connector 4 is cylindrical shape, the buckle structure 5 is rotary buckle, including setting exists
Convex block 11 on netting gear connector circumference and the snap ring 12 being socketed in outside netting gear connector 4,12 inner wall of snap ring is equipped with revolving
Card slot 13, such structure fixation is stablized, easy to loading and unloading.When in use, the first opening end a the netting gear is socketed in connect
Between first 2 and snap ring 12, snap ring 12 is rotated, is caught in convex block 11 in card slot 13, completes to fix.
As shown in figure 3, the filter device 6 is the double-deck netting gear of 5 centimeters of meshes, guaranteeing what fish-egg and larva and juvenile passed through
Meanwhile the impurity such as water plant of effectively filtering floating.
Preferably, the first opening a is also equipped with the hangnail device 14 towards net cage 1, formed by 2 court of catching net
To the half-duplex channel 15 of net cage 1, larva and juvenile is avoided to flee from.
Further, the bevel edge of catching net 2 is provided with mounting rod 16, prevents catching net 2 in open configuration, always
Only it is inwardly collapsed, and is collected convenient for fishing.
Shown in as seen in figs, net cage 1 is square structure, is fixedly mounted by the net cage frame 17 of bottom, described
Net cage frame 17 includes two root long fixed links 18 and two short fixed link 19, is connected between adjacent fixed link by joinery and its construction grafting
It connects, long 18 both ends of fixed link are also provided with vertical mounting hole 20, are plugged in the mounting hole upward for fixing
The net cage fixation member 21 of the vertical selvage of the net cage 1.
Wherein, the net cage fixation member 21 is divided into three parts in the vertical direction, and top A is cone, middle part B packet
Include upper half cylinder and lower half cone, lower part C is straight cylinder, and the diameter of the cylinder and straight cylinder is equal to the mounting hole
20 aperture, such structure can effectively prevent 1 upper end of net cage from the net cage fixation member 21 while facilitating installation
End falls off, and increases the stability of installation.
In the technical solution of the utility model, the net cage frame 17 or net cage fixation member 21 have certain buoyancy,
The gravity for cooperating net cage 1 and itself, makes the net cage 1 be in suspended state.
Further, in the present embodiment, the length ratio A:B:C of the net cage fixation member 21 three parts from top to bottom
For 1:4:5.
As shown in Fig. 2, 1 four jiaos of the net cage is also equipped with positioning rope 22, by the positioning rope 22, by the net cage 1
It fixes in water, prevents it because water flow is mobile or offset, influence collection effect.
Above embodiments are only several expression-forms of technical solutions of the utility model and thought, and those of ordinary skill exists
Under the premise of not making the creative labor, obtained other embodiments or above embodiments are simply improved, at this
Within the claims of utility model.
Claims (10)
1. a kind of drift fish-egg, larva and juvenile investigate netting gear, it is characterised in that: including net cage and catching net, catching net is logical
The fishing mouth crossing netting gear connector and being arranged on the net cage is connected with the net cage, and the catching net has the first opening
With the second opening, first opening is connected to by netting gear connector with fishing mouth installation, and netting gear connector one end passes through
Buckle structure is fixedly mounted on the catching net, and the other end is fixed at the fishing mouth, and the catching net second is opened
Filter device is provided at mouthful, the second open upper edge of catching net edge is provided with floating structure.
2. a kind of drift fish-egg according to claim 1, larva and juvenile investigate netting gear, it is characterised in that: the fishing net
Tool is rectangular cone net, and second opening is greater than first opening, and second opening is provided with drawstring, the drawstring one
End is connected to the catching net by four fixed ropes, and the drawstring other end is fixed on the fixture in river.
3. a kind of drift fish-egg according to claim 1, larva and juvenile investigate netting gear, it is characterised in that: described second opens
Mouth lower edge is provided with weighted lever.
4. a kind of drift fish-egg according to claim 1 or 3, larva and juvenile investigate netting gear, it is characterised in that: the floating
Structure is along the evenly arranged foam ball of the second open upper edge.
5. a kind of drift fish-egg according to claim 1, larva and juvenile investigate netting gear, it is characterised in that: the netting gear connects
Head is cylindrical shape, and the buckle structure is rotary buckle, including the convex block being arranged on netting gear connector circumference and is socketed in net
Has the snap ring outside connector, the snap ring inner wall is equipped with rotary card slot.
6. a kind of drift fish-egg according to claim 1, larva and juvenile investigate netting gear, it is characterised in that: the filtering dress
It is set to the double-deck netting gear of 5 centimeters of meshes.
7. a kind of drift fish-egg according to claim 1, larva and juvenile investigate netting gear, it is characterised in that: the fishing net
Have the first opening and be also equipped with hangnail device towards net cage, is formed by catching net towards the half-duplex channel of net cage.
8. a kind of drift fish-egg according to claim 2, larva and juvenile investigate netting gear, it is characterised in that: the fishing net
The bevel edge of tool is provided with mounting rod.
9. a kind of drift fish-egg according to claim 1, larva and juvenile investigate netting gear, it is characterised in that: the net cage is
Square structure is fixedly mounted by bottom net cage frame, and the net cage frame includes two root long fixed links and two short fixations
Bar, by joinery and its construction plug connection between adjacent fixed link, the long fixed link both ends are also provided with vertical mounting hole, institute
It states and is plugged with the upward net cage fixation member for being used to fix the vertical selvage of the net cage in mounting hole.
10. a kind of drift fish-egg according to claim 9, larva and juvenile investigate netting gear, it is characterised in that: the net cage four
Angle is equipped with positioning rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821504809.8U CN208863388U (en) | 2018-09-14 | 2018-09-14 | A kind of drift fish-egg, larva and juvenile investigate netting gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821504809.8U CN208863388U (en) | 2018-09-14 | 2018-09-14 | A kind of drift fish-egg, larva and juvenile investigate netting gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208863388U true CN208863388U (en) | 2019-05-17 |
Family
ID=66467735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821504809.8U Expired - Fee Related CN208863388U (en) | 2018-09-14 | 2018-09-14 | A kind of drift fish-egg, larva and juvenile investigate netting gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208863388U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112868608A (en) * | 2021-01-12 | 2021-06-01 | 华南农业大学 | Multilayer deep water area fishing device for fish resource investigation |
| CN113274785A (en) * | 2021-05-19 | 2021-08-20 | 大连理工大学 | Immersion type suspension solid matter enrichment flow guide cover device |
-
2018
- 2018-09-14 CN CN201821504809.8U patent/CN208863388U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112868608A (en) * | 2021-01-12 | 2021-06-01 | 华南农业大学 | Multilayer deep water area fishing device for fish resource investigation |
| CN112868608B (en) * | 2021-01-12 | 2022-02-25 | 华南农业大学 | Multilayer deep water area fishing device for fish resource investigation |
| CN113274785A (en) * | 2021-05-19 | 2021-08-20 | 大连理工大学 | Immersion type suspension solid matter enrichment flow guide cover device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205727709U (en) | A kind of Fish, large jellyfish selective fishing netting gear | |
| CN208863388U (en) | A kind of drift fish-egg, larva and juvenile investigate netting gear | |
| CN104137813B (en) | A kind of fry collecting method of fry collecting device and applicable THE LOWER YANGTZE VALLEY tideway | |
| CN201349447Y (en) | Cyanea nozakii net sheet separation device of fishing net | |
| CN201349448Y (en) | Beam trawl net sheet fish and shrimp separation device | |
| KR101071149B1 (en) | Apparatus for intermediate nursing fish seeds and system for releasing fish seeds using the same | |
| CN207201780U (en) | It is a kind of to block bottom to dwell the cylinder mould gillnet device of external SILURIFORMES fish diffusion | |
| CN113057147A (en) | Lobster fishing device | |
| CN206182149U (en) | Ground cage is catched to loach | |
| CN106359240B (en) | A kind of progressive releasing device of fish self-adapting type | |
| CN203152297U (en) | Novel fishing cover net | |
| CN212629559U (en) | Water bloom fry collecting device | |
| CN112868608B (en) | Multilayer deep water area fishing device for fish resource investigation | |
| CN204722041U (en) | Carp is concentrated in advance and lays eggs and gathering unit | |
| CN207561195U (en) | A kind of selectivity shrimping cage | |
| CN202773801U (en) | River double-wing fry collecting netting gear | |
| CN208462754U (en) | A kind of remove device of alien species | |
| CN208016732U (en) | A kind of device for fishing for the fish that escape after electric fishing in streams | |
| CN201491632U (en) | Aquatic plankton sampler | |
| CN203709039U (en) | Fish zygote collector | |
| CN215270143U (en) | Multi-purpose shrimp catching cage capable of being screened | |
| CN212753816U (en) | Torrent shoal type river roe collection system | |
| CN209609601U (en) | A kind of pelagic fishes capture net | |
| CN201022302Y (en) | One-way fishing net | |
| CN215422361U (en) | Integrated catching system for crayfish cage box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 Termination date: 20200914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |