CN201179967Y - Losing-proof device for trawl net underwater operation - Google Patents
Losing-proof device for trawl net underwater operation Download PDFInfo
- Publication number
- CN201179967Y CN201179967Y CNU200820057509XU CN200820057509U CN201179967Y CN 201179967 Y CN201179967 Y CN 201179967Y CN U200820057509X U CNU200820057509X U CN U200820057509XU CN 200820057509 U CN200820057509 U CN 200820057509U CN 201179967 Y CN201179967 Y CN 201179967Y
- Authority
- CN
- China
- Prior art keywords
- trawlnet
- prevention device
- loss prevention
- trawl
- ball float
- 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
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Abstract
The utility model provides a loss prevention device for underwater operation of an Agassiz trawl, relating to an auxiliary device for a benthic collection trawl in marine ecological environment investigation. The technical problem to be solved is to provide the loss prevention device marking the position of the Agassiz trawl so as to carry out positioning salvage when the Agassiz trawl is separated. The utility model comprises the technical proposal as follows: the loss prevention device consists of a ball float and a thread rope, and is characterized in that the float ball is tied with one end of the thread rope by a tether hole or a matched tuck net, while the other end of thread rope is tied with the middle part of a crosstie of an iron stand of the Agassiz trawl. The utility model can be used as the loss prevention device for the underwater operation of the Agassiz trawl.
Description
Technical field:
The utility model relates to the accessory device that marine eco-environment investigation mesobenthos is gathered trawlnet.
Background technology
In the trawl gatherer process of reality, normally Ah's trawling gear is directly hung the enterprising line operate of gun wale that lies in the investigation ship by two hawsers.On the one hand,, some obstacles (such as net stake, reef piece etc.) occur through regular meeting and twine, make tow tension force be difficult to bear and rupture, thereby cause losing of Ah drag'ssing netting gear because the situation complexity is difficult to the naked eyes direct viewing under water.On the other hand, because of for a long time trawling, the hawser that connects ship side also certain wearing and tearing can occur and rupture, and perhaps the misoperation that binds owing to hawser causes looseningly, all may cause losing of trawling gear.In addition, because the manufacture craft of trawling gear own is comparatively complicated, the scene makes all relative difficulty with the condition of carrying temporarily.So lose in case netting gear takes place, under the impact of current, can't carry out accurate in locating and salvage, will produce serious influence for normally carrying out of follow-up investigation work.
The utility model content
The utility model technical issues that need to address provide the loss prevention device of a kind of Ah's of sign trawlnet position, so that when Ah's trawlnet comes off, can position salvaging.
The technical solution of the utility model is made up of ball float, cotton rope, it is characterized in that ball float has rope fastening hole or fastens groove or supporting string bag system is connected in cotton rope one end, and cotton rope other end system is connected in the middle part of the brandreth crossbeam of Ah's trawlnet.
The utility model has the advantages that manufacture craft is simple, safety is row easily, the cost of material is low, free from environmental pollution,, easy to use to benthic collection without any influence, when the generation netting gear comes off, can carry out the location of netting gear and salvage, thereby reach the purpose that prevents that netting gear from losing by observing the position of ball float.
Description of drawings
What accompanying drawing was represented is the scheme drawing of Ah's trawlnet under-water operation loss prevention device.
The specific embodiment
The utility model is made up of ball float 1, cotton rope 2, and buoyancy 0.87 newton of ball float 1 can adopt diameter
6cm polyvinylchloride ball float; Diameter can be adopted in the proportion of cotton rope 2＜1
4mm, tension force are the 150kg polyethylene rope, and the length of cotton rope 2 is adjusted according to the depth of water, generally greater than 5～10 meters of the depth of waters; Ball float 1 has rope fastening hole or fastens groove or the supporting string bag fastens and is connected cotton rope 2 one ends, and cotton rope 2 other ends fasten the brandreth crossbeam middle part that is connected Ah's trawlnet; The brandreth crossbeam middle part of Ah's trawlnet preferably is provided with a fixing iron hoop, then cotton rope 2 is fastened on the iron hoop at the brandreth crossbeam middle part that is connected Ah's trawlnet; Be fixed on circular iron hoop 3 diameters at Ah's trawlnet brandreth crossbeam middle part
10mm.
Claims (3)
1, Ah's trawlnet under-water operation loss prevention device is made up of ball float, cotton rope, it is characterized in that ball float has rope fastening hole or fastens groove or overlap the distribution pocket is to be connected in cotton rope one end, and cotton rope other end system is connected in the middle part of the brandreth crossbeam of Ah's trawlnet.
2, Ah's trawlnet under-water operation loss prevention device according to claim 1 is characterized in that buoyancy 0.87 newton of ball float, adopts diameter
The polyvinylchloride ball float; Diameter is adopted in the proportion of cotton rope＜1
Tension force is the 150kg polyethylene rope.
3, Ah's trawlnet under-water operation loss prevention device according to claim 1 and 2 is characterized in that the brandreth crossbeam middle part of Ah's trawlnet is provided with a fixing iron hoop, and cotton rope system is connected on the iron hoop at brandreth crossbeam middle part of Ah's trawlnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820057509XU CN201179967Y (en) | 2008-04-21 | 2008-04-21 | Losing-proof device for trawl net underwater operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820057509XU CN201179967Y (en) | 2008-04-21 | 2008-04-21 | Losing-proof device for trawl net underwater operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201179967Y true CN201179967Y (en) | 2009-01-14 |
Family
ID=40249466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820057509XU Expired - Fee Related CN201179967Y (en) | 2008-04-21 | 2008-04-21 | Losing-proof device for trawl net underwater operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201179967Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071305A (en) * | 2014-07-10 | 2014-10-01 | 中国水产科学研究院渔业机械仪器研究所 | Tuna tracking float acoustic anti-theft device |
| CN104082255A (en) * | 2014-05-14 | 2014-10-08 | 浙江省海洋水产研究所 | Marine bottom trawling trapper and trapping method thereof |
| CN104181009A (en) * | 2014-08-13 | 2014-12-03 | 张�浩 | Benthonic animal collection quantification frame |
-
2008
- 2008-04-21 CN CNU200820057509XU patent/CN201179967Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104082255A (en) * | 2014-05-14 | 2014-10-08 | 浙江省海洋水产研究所 | Marine bottom trawling trapper and trapping method thereof |
| CN104082255B (en) * | 2014-05-14 | 2016-04-27 | 浙江省海洋水产研究所 | Grabber and catching method thereof is dragged at the bottom of a kind of ocean |
| CN104071305A (en) * | 2014-07-10 | 2014-10-01 | 中国水产科学研究院渔业机械仪器研究所 | Tuna tracking float acoustic anti-theft device |
| CN104181009A (en) * | 2014-08-13 | 2014-12-03 | 张�浩 | Benthonic animal collection quantification frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20120421 |