CN201349447Y - Cyanea nozakii net sheet separation device of fishing net - Google Patents

Cyanea nozakii net sheet separation device of fishing net Download PDF

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Publication number
CN201349447Y
CN201349447Y CNU2009200671123U CN200920067112U CN201349447Y CN 201349447 Y CN201349447 Y CN 201349447Y CN U2009200671123 U CNU2009200671123 U CN U2009200671123U CN 200920067112 U CN200920067112 U CN 200920067112U CN 201349447 Y CN201349447 Y CN 201349447Y
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CN
China
Prior art keywords
net
throwing
liberation port
rosy clouds
clouds jellyfish
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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
Application number
CNU2009200671123U
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Chinese (zh)
Inventor
张健
彭永章
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Shanghai Maritime University
Shanghai Ocean University
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Shanghai Maritime University
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Priority to CNU2009200671123U priority Critical patent/CN201349447Y/en
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Publication of CN201349447Y publication Critical patent/CN201349447Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A cyanea nozakii net sheet separation device of fishing net comprises a net body; wherein, the net body comprises a net opening, a net body and a net bag; the net opening is connected with the net body, the net body is connected with the closed net bag, the upper part of the net body is net back, the lower part of the net body is net belly, a separation net sheet used for separating netted fish from cyanea nozakii is arranged in the net body, the separation net sheet is inclined and downward and in trapezoidal structure, the wide side is connected with the net back close to the net opening and the narrow side is connected with the net belly close to the net bag. One side of the connection part of the separation net sheet and the net belly close to the net opening is provided with a releasing opening for releasing cyanea nozakii blocked by the separation net sheet. The net body part outside the releasing opening is provided with a net tongue for stopping fish from escaping; the area of the net tongue is more than the area of the releasing opening. The cyanea nozakii blocked in the fishing net during operation process is separated and released so that the fishing net can perform production operation in furnishing growing season of cyanea nozakii and reduce net damage and anchor moving broken net accidents so as to improve fishery production and increase income for fisherman.

Description

The fishing gear rosy clouds jellyfish net sheet type separator of throwing the net
Technical field
The utility model relates to a kind of fishing gear rosy clouds jellyfish net sheet type separator of throwing the net, and belongs to the sea fishery technical field.
Background technology
Since the nineties in 20th century, China east, the Huanghai Sea marine site ecosystem upheaval aggravation rosy clouds jellyfish (Cyanea nozakii) occurred and have broken out on a large scale in these marine sites.Though Chinese scholars was done research to aspects such as the biology of rosy clouds jellyfish, ecology, people still seem at a loss what to do for how controlling breaking out of rosy clouds jellyfish.In recent years, rosy clouds jellyfish scope, quantity and the duration of breaking out increase year by year; On spatial and temporal distributions, Xia Shuimuwang was sent out summer (6～September), and the position is mainly to throw the net and the trawling fishing zone in the East Sea.
The fishing gear of throwing the net is a kind of stationary catching device, opens usually and is located at littoral fish, shrimps hole trip passage or the place of laying eggs, and by the impact of trend, forces and fishes for the object networking.
The fishing gear of throwing the net is generally taper, comprises network interface, body, net abdomen and net capsule; Network interface by framework, analyse bar, montant or other floating, heavy power apparatus are kept level and vertical expansion; Body comprises the net abdomen and the net back of the body, 80% mesh in the middle of the net abdomen is meant, and the net back of the body is meant the place except that 80% mesh in the middle of the net abdomen; Body is connected with the net capsule.
Since the eighties in 20th century, throwing the net becomes east, the main operating type of Huanghai Sea coastal waters small scale fishery gradually.
When throwing the net the fishing gear operation, break out, grow morely, twine sticking, obstruction mesh after fractureing, the water filtering performance of netting gear is obstructed because of rosy clouds jellyfish tentacle if meet the rosy clouds jellyfish; In recent years and since prosperous of the rosy clouds jellyfish make east, Huanghai Sea autumn and winter flood throw the net sudden and violent net in the operation, move the anchor accident of scoring a goal and take place frequently, caused serious economy loss to fishery.
Under this background, must carry out throw the net fishing gear rosy clouds jellyfish design of separation facility and exploitation, by on the fishing gear of throwing the net, using this type of device, reduce the amount of fishing of the fishing gear rosy clouds jellyfish of throwing the net, to keep normally carrying out of the fishery of throwing the net.
The utility model content
This outstanding problem that fishery faced at throwing the net, the utility model is intended to according to fish and the rosy clouds jellyfish difference at aspects such as life habit, biology, a kind of fishing gear rosy clouds jellyfish net sheet type separator of throwing the net is provided, implement to separate, discharge to entering the rosy clouds jellyfish of throwing the net in the operation process of throwing the net, this utility model is applicable to the fishery of throwing the net.
The technical problem of the required solution of the utility model can be achieved through the following technical solutions:
A kind of fishing gear rosy clouds jellyfish net sheet type separator of throwing the net comprises dictyosome, and dictyosome comprises: network interface, body and net capsule, and network interface connects body, and body connects closed net capsule, and the upper part of body is the net back of the body, and the lower part of body is the net abdomen, it is characterized in that:
The separator panel of the fish that will network and the separation of rosy clouds jellyfish is set in the described dictyosome,
One end of described separator panel is connected with the net back of the body, and the other end is connected with the net abdomen;
Described separator panel and net abdomen junction are provided with the liberation port that a rosy clouds jellyfish that the separator panel detention is got off discharges dictyosome near a side of network interface.
Under being set to be tilted to, described separator panel is trapezium structure; Comprise broadside, narrow limit and two hypotenuses, described broadside is connected with the net back of the body of close network interface, and described narrow limit is connected with the net abdomen of close net capsule.
Described liberation port is arranged at separator panel and the preceding 5～10cm of net abdomen suture place.
Described liberation port is set to isosceles triangle, comprises base and two hypotenuses, bottom width 80～100cm, high 100～120cm.
Described liberation port is set to rectangle, comprises two long limits and two minor faces, long 100～120cm, wide 60～80cm.
The outer dictyosome of described liberation port partly is provided with one and stops the net tongue that fish are fled from; The area of described net tongue is greater than the area of liberation port.
Described net tongue is set to isosceles triangle, fixedlys connected near the edge of network interface with liberation port in the base; Two hypotenuses net abdomen floating along with current and around the liberation port touches in addition.
Described net tongue is set to rectangle, fixedlys connected near the edge of network interface with liberation port in a long limit; Another side and two minor face net abdomens floating along with current and around the liberation port touch.
Say that on the whole it is different that fish and rosy clouds jellyfish enter the later capacity of throwing the net: have certain swimming ability after fish enter and throw the net, and the rosy clouds jellyfish is a kind of large-scale floating property jellyfish, according to the observation, and after the rosy clouds jellyfish networks, the following current capsule that networks rapidly; Simultaneously, compare with other fishery harvesting that the fishing gear of throwing the net is caught, flood season autumn and winter, the rosy clouds jellyfish obviously wanted big on individuality, and rosy clouds jellyfish umbrella directly reaches 60～100cm usually.In view of the above, the utility model is provided with a separator panel releasing device under being tilted to before fishing net's capsule, promptly be arranged in the dictyosome with a ladder type separator panel, with this fish and the rosy clouds jellyfish that network are separated, fish can pass separator panel and enter the net capsule, and the rosy clouds jellyfish is separated the detention of net sheet and gets off because capacity is weak, individual big.For the rosy clouds jellyfish that detention is got off discharges dictyosome, open a liberation port on the net abdomen before separator panel and net abdomen junction.Consider fish also may contact this liberation port and flee from the fishing gear of throwing the net, so set up the net tongue that a specification is slightly larger than liberation port, under the effect of current, float and invest liberation port, to scheme to hinder the escape of fish, the structural representation of the fishing gear rosy clouds jellyfish net sheet type separator of throwing the net as shown in Figure 1.
Owing to adopted technique scheme, before having the dictyosome Intranet capsule of producing the fishing gear of throwing the net now, be provided with separator panel and liberation port, implement to separate, discharge to entering the rosy clouds jellyfish of throwing the net in the fishing gear operation process of throwing the net, make and to throw the net that fishing gear can be sent out season at Xia Shuimuwang, production operation is carried out in the marine site, reduce sudden and violent net in the fishing gear operation of throwing the net, move the anchor accident of scoring a goal, improve fishery production, increase fisherman's income.
The utlity model has simple in structurely, cost of manufacture is low, and installs easily and remove, to the little advantage of operation influence of throwing the net.
Description of drawings
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is an end view of the present utility model.
Fig. 2 is a upward view of the present utility model.
Fig. 3 is a partial schematic diagram of the present utility model.
Drawing explanation: network interface 1, body 2, the net back of the body 21, net abdomen 22, net capsule 3, separator panel 4, liberation port 5, net tongue 6.
Embodiment
In order to make technological means of the present utility model, creation characteristic, to reach purpose and effect is easy to understand,, further set forth the utility model below in conjunction with concrete diagram.
A kind of fishing gear rosy clouds jellyfish net sheet type separator of throwing the net as depicted in figs. 1 and 2, comprises dictyosome, dictyosome comprises: network interface 1, body 2 and net capsule 3, and network interface 1 connects body 2, and body 2 connects closed net capsule 3, the upper part of body 2 is net back ofs the body 21, and the lower part of body 2 is net abdomens 22.
The separator panel 4 that the fish that will network and rosy clouds jellyfish are separated is set in the dictyosome, and separator panel 4 and net abdomen 22 junctions are provided with the liberation port 5 that a rosy clouds jellyfish that separator panel 4 detentions are got off discharges dictyosome near a side of network interface 1, set up net tongues 6 outside the liberation port 5.
Embodiment 1
Described network interface 1 adopts PE36tex3 * 5 netting twine materials to make circulus, and network interface connects body 2, and body 2 adopts the etting of the netting twine material of PE36tex3 * 4 to make, and net capsule 3 adopts the etting of PE36tex3 * 5 netting twine materials to make.
Liberation port 5 is arranged at separator panel and the preceding 5～10cm of net abdomen 22 sutures place.
Liberation port 5 is set to rectangle, comprises two long limits and two minor faces, long 100～120cm, wide 60～80cm.
Liberation port 5 outer dictyosomes partly are provided with one and stop the net tongue 6 that fish are fled from; The area of net tongue 6 is greater than the area of liberation port 5, and promptly 3～5cm is respectively widened on the net sheet limit under cutting.
Net tongue 6 is set to rectangle, fixedlys connected near the edge of network interface with liberation port in a long limit; Another side and two minor face net abdomens floating along with current and around the liberation port touch.
Under being set to be tilted to, separator panel 4 is trapezium structure; Comprise broadside, narrow limit and two hypotenuses, broadside is connected with the net back of the body 21 of close network interface 1, and narrow limit is connected with the net abdomen 22 of close net capsule 3.
The mesh size of separator panel 4 is 45cm, and the netting twine material is PE25 * 3; Separator panel 4 is trapezoidal (referring to Fig. 3), horizontal hanging ratio E TGet 0.40～0.50, concrete specification is determined according to different netting gears and fit; Generally, separator panel 4 assembling inclination angles are relevant with separator panel length, and net sheet assembling length is consistent with the body sheepshank length at assembling separator panel place, guarantees the abundant expansion of dictyosome and net sheet; Separator panel 4 broadsides and the back of the body of the net above body blind stitching; Net abdomen 22 blind stitchings below narrow limit and the body; The both sides of separator panel 4 respectively with body 2 blind stitchings, make net abdomen 22 constitute and dredge the purpose Criny with separator panel 4, liberation port 5 is funnel mouth, is arranged at net abdomen 22, be similar to one crouch lie prostrate tiltedly cut open Rotary-table.Broadside, narrow limit T-meshes N k, N zBe respectively:
N k = ( C - 0.8 × N f ) · a 1 a 2 · E T 1 E T 2 ; N z = 0.8 × N f ′ · a 1 ′ a 2 · E T 1 E T 2
Wherein: the circumferential order number of the body of C-and broadside connecting place; N f-with broadside junction net abdomen T-meshes; N ' f-with junction, narrow limit net abdomen T-meshes; a 1-with the body size of mesh of broadside connecting place; a 2-separator panel size of mesh; A ' 1-with the body size of mesh of narrow limit connecting place; E T1-body netting hanging coefficient; E T2-separator panel netting hanging coefficient.
Embodiment 2
Liberation port 5 is set to isosceles triangle, comprises base and two hypotenuses, bottom width 80～100cm, high 100～120cm.
Liberation port 5 outer dictyosomes partly are provided with one and stop the net tongue 6 that fish are fled from; The area of described net tongue 6 is greater than the area of liberation port, and promptly 3～5cm is respectively widened on the net sheet limit under cutting.
Net tongue 6 is set to isosceles triangle, fixedlys connected near the edge of network interface 1 with liberation port 5 in the base; Two hypotenuses net abdomen 22 floating along with current and around the liberation port 5 touches in addition.
All the other are with embodiment 1.Accompanying drawing does not illustrate.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (8)

1, a kind of fishing gear rosy clouds jellyfish net sheet type separator of throwing the net comprises dictyosome, and dictyosome comprises: network interface, body and net capsule, and network interface connects body, and body connects closed net capsule, and the upper part of body is the net back of the body, and the lower part of body is the net abdomen, it is characterized in that:
The separator panel of the fish that will network and the separation of rosy clouds jellyfish is set in the described dictyosome;
One end of described separator panel is connected with the net back of the body, and the other end is connected with the net abdomen;
Described separator panel and net abdomen junction are provided with the liberation port that a rosy clouds jellyfish that the separator panel detention is got off discharges dictyosome near a side of network interface.
2, the fishing gear rosy clouds jellyfish net sheet type separator of throwing the net according to claim 1 is characterized in that: be trapezium structure under described separator panel is set to be tilted to; Comprise broadside, narrow limit and two hypotenuses, described broadside is connected with the net back of the body of close network interface, and described narrow limit is connected with the net abdomen of close net capsule.
3, the fishing gear rosy clouds jellyfish net sheet type separator of throwing the net according to claim 1, it is characterized in that: described liberation port is arranged at separator panel and the preceding 5～10cm of net abdomen suture place.
4, the fishing gear rosy clouds jellyfish net sheet type separator of throwing the net according to claim 3, it is characterized in that: described liberation port is set to isosceles triangle, comprises base and two hypotenuses, bottom width 80～100cm, high 100～120cm.
5, the fishing gear rosy clouds jellyfish net sheet type separator of throwing the net according to claim 3, it is characterized in that: described liberation port is set to rectangle, comprises two long limits and two minor faces, long 100～120cm, wide 60～80cm.
6, the fishing gear rosy clouds jellyfish net sheet type separator of throwing the net according to claim 3 is characterized in that: the outer dictyosome of described liberation port partly is provided with one and stops the net tongue that fish are fled from; The area of described net tongue is greater than the area of liberation port.
7, the fishing gear rosy clouds jellyfish net sheet type separator of throwing the net according to claim 4, it is characterized in that: described net tongue is set to isosceles triangle, and fixedly connected near the edge of network interface with liberation port in the base; Two hypotenuses net abdomen floating along with current and around the liberation port touches in addition.
8, the fishing gear rosy clouds jellyfish net sheet type separator of throwing the net according to claim 5, it is characterized in that: described net tongue is set to rectangle, and fixedly connected near the edge of network interface with liberation port in a long limit; Another side and two minor face net abdomens floating along with current and around the liberation port touch.
CNU2009200671123U 2009-01-19 2009-01-19 Cyanea nozakii net sheet separation device of fishing net Expired - Fee Related CN201349447Y (en)

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Application Number Priority Date Filing Date Title
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102792946A (en) * 2012-08-13 2012-11-28 辽宁省海洋水产科学研究院 Disaster jellyfish emergency disposal method
CN104982394A (en) * 2015-08-12 2015-10-21 大湖水殖股份有限公司 Large lake surface set net
CN106070100A (en) * 2016-06-21 2016-11-09 中国水产科学研究院南海水产研究所 A kind of Jellyfish remover for trawlnet
CN106417197A (en) * 2016-12-05 2017-02-22 上海海洋大学 Net spreading juvenile fish release device with self-provided guiding net
CN108849777A (en) * 2018-06-14 2018-11-23 中国水产科学研究院黄海水产研究所 A kind of shrimp of releasable jellyfish is thrown the net and its assembly method
CN109914350A (en) * 2019-04-11 2019-06-21 苏州热工研究院有限公司 A kind of small-sized marine growth retains the intercept net component in net and nuclear power plant's intake sea area
CN111802337A (en) * 2020-05-25 2020-10-23 中国水产科学研究院东海水产研究所 Euphausia superba trawl dual-selectivity device structure
CN111972362A (en) * 2020-09-01 2020-11-24 中国水产科学研究院南海水产研究所 Jellyfish interception net and use method thereof
CN115362995A (en) * 2022-08-24 2022-11-22 中国水产科学研究院南海水产研究所 Net-opening net bag capable of effectively reducing proportion of juvenile fish and juvenile shrimp

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102792946A (en) * 2012-08-13 2012-11-28 辽宁省海洋水产科学研究院 Disaster jellyfish emergency disposal method
CN104982394A (en) * 2015-08-12 2015-10-21 大湖水殖股份有限公司 Large lake surface set net
CN104982394B (en) * 2015-08-12 2017-12-15 大湖水殖股份有限公司 Large-scale lake surface fixation is thrown the net
CN106070100A (en) * 2016-06-21 2016-11-09 中国水产科学研究院南海水产研究所 A kind of Jellyfish remover for trawlnet
CN106070100B (en) * 2016-06-21 2018-11-13 中国水产科学研究院南海水产研究所 A kind of jellyfish remover for trawlnet
CN106417197A (en) * 2016-12-05 2017-02-22 上海海洋大学 Net spreading juvenile fish release device with self-provided guiding net
CN108849777A (en) * 2018-06-14 2018-11-23 中国水产科学研究院黄海水产研究所 A kind of shrimp of releasable jellyfish is thrown the net and its assembly method
CN109914350A (en) * 2019-04-11 2019-06-21 苏州热工研究院有限公司 A kind of small-sized marine growth retains the intercept net component in net and nuclear power plant's intake sea area
CN111802337A (en) * 2020-05-25 2020-10-23 中国水产科学研究院东海水产研究所 Euphausia superba trawl dual-selectivity device structure
CN111802337B (en) * 2020-05-25 2022-03-04 中国水产科学研究院东海水产研究所 Euphausia superba trawl dual-selectivity device structure
CN111972362A (en) * 2020-09-01 2020-11-24 中国水产科学研究院南海水产研究所 Jellyfish interception net and use method thereof
CN111972362B (en) * 2020-09-01 2022-09-23 中国水产科学研究院南海水产研究所 Jellyfish interception net and use method thereof
CN115362995A (en) * 2022-08-24 2022-11-22 中国水产科学研究院南海水产研究所 Net-opening net bag capable of effectively reducing proportion of juvenile fish and juvenile shrimp

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Granted publication date: 20091125

Termination date: 20120119