CN204206942U - A kind of can the horizontal trawlnet of fish eggs and larvae of simple and easy separation bulky refuse - Google Patents
A kind of can the horizontal trawlnet of fish eggs and larvae of simple and easy separation bulky refuse Download PDFInfo
- Publication number
- CN204206942U CN204206942U CN201420635266.9U CN201420635266U CN204206942U CN 204206942 U CN204206942 U CN 204206942U CN 201420635266 U CN201420635266 U CN 201420635266U CN 204206942 U CN204206942 U CN 204206942U
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- CN
- China
- Prior art keywords
- etting
- bulky refuse
- trawlnet
- larvae
- horizontal
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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
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Abstract
The utility model relate to a kind of can the horizontal trawlnet of fish eggs and larvae of simple and easy separation bulky refuse, comprise etting, described etting surrounds the taper of a both ends open, the upper end open of described etting is greater than lower ending opening, described etting upper end open connects bulky refuse filter, described etting lower ending opening connects sample collection device, the cylindrical upper and lower both ends open of described bulky refuse filter, between its lower ending opening and etting, be provided with screen pack, on described bulky refuse filter with tow strap, for connecting towboat.The utility model ensure current and sample smoothly by time, can tackle some bulky refuses again, prevent sanitary fill to the bottom of trawlnet, cost of manufacture is low, and recycling rate of waterused is high, practical.
Description
Technical field
The utility model belongs to fish eggs and larvae sampling instrument technical field, particularly relate to a kind of can the horizontal trawlnet of fish eggs and larvae of simple and easy separation bulky refuse.
Background technology
Domestic in aquatic product fishery field of scientific study at present, carrying out gathering netting gear in the horizontal trawling operation of fish eggs and larvae usually because the reason of the method for sampling and water impact, netting gear is often close to water surface, some rubbish of water surface, more particularly the rubbish of larger build is as plastic sack, pop can and some tangleweeds can enter the horizontal trawlnet of fish eggs and larvae, be deposited under the effect of current bottom netting gear, sanitary fill not only have impact on the flowing of water body in netting gear in net, also can adhere to many fish eggs and larvae samples, impact gathers the accuracy of fish eggs and larvae sample.
Summary of the invention
Technical problem to be solved in the utility model be to provide a kind of can the horizontal trawlnet of fish eggs and larvae of simple and easy separation bulky refuse, ensure passing through smoothly of current and sample, some bulky refuses can be tackled again, prevent sanitary fill to the bottom of trawlnet, cost of manufacture is low, recycling rate of waterused is high, practical.
The utility model solves the technical scheme that its technical problem adopts: provide a kind of can the horizontal trawlnet of fish eggs and larvae of simple and easy separation bulky refuse, comprise etting, described etting surrounds the taper of a both ends open, the upper end open of described etting is greater than lower ending opening, described etting upper end open connects bulky refuse filter, described etting lower ending opening connects sample collection device, the cylindrical upper and lower both ends open of described bulky refuse filter, screen pack is provided with between its lower ending opening and etting, with tow strap on described bulky refuse filter, for connecting towboat.
The upper and lower both ends open of described bulky refuse filter is respectively provided with a steel ring, and the steel ring of described upper end open is provided with 4 tow straps, the steel ring of described lower ending opening is covered with a screen pack and connects etting.
Described steel ring area is 0.5 square metre.
Described screen pack mesh is the square that length and width is 10 centimetres.
Beneficial effect
The utility model has the advantage of, ensure current and sample smoothly by time, can tackle some bulky refuses again, prevent sanitary fill to the bottom of trawlnet, cost of manufacture is low, and recycling rate of waterused is high, practical.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with specific embodiment, set forth the utility model further.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model instruction.
As shown in Figure 1, a kind of can the horizontal trawlnet of fish eggs and larvae of simple and easy separation bulky refuse, comprise etting 4, described etting 4 surrounds the taper of a both ends open, the upper end open of described etting 4 is greater than lower ending opening, described etting 4 upper end open connects bulky refuse filter 1, described etting 4 lower ending opening connects sample collection device 5, the cylindrical upper and lower both ends open of described bulky refuse filter 1, between its lower ending opening and etting 4, be provided with screen pack 2, on described bulky refuse filter 1 with tow strap 3, for connecting towboat.
Described bulky refuse filter about 1 both ends open is respectively provided with a steel ring, and the steel ring of described upper end open is provided with 4 tow straps 3, the steel ring of described lower ending opening is covered with a screen pack 2 and connects etting 4.
Described steel ring area is 0.5 square metre.
Described screen pack 2 mesh is the square that length and width is 10 centimetres.
In actual use, etting 4 is made according to the specification of deep water I type plankton net; Bulky refuse filter 1 is fixed on above etting 4, and etting 4 is equipped with the sample collection device made according to the specification that plankton net is general below, bulky refuse filter 1 is made up of steel ring and dictyosome, the area of steel ring is about 0.5m2, the screen pack 2 that mesh is 10cm × 10cm is set between bulky refuse filter 1 and etting 4, ensure current and sample smoothly by time, some bulky refuses can be tackled again, prevent sanitary fill to the bottom of trawlnet.
Claims (4)
1. one kind can the horizontal trawlnet of fish eggs and larvae of simple and easy separation bulky refuse, comprise etting (4), it is characterized in that, described etting (4) surrounds the taper of a both ends open, the upper end open of described etting (4) is greater than lower ending opening, described etting (4) upper end open connects bulky refuse filter (1), described etting (4) lower ending opening connects sample collection device (5), the cylindrical upper and lower both ends open of described bulky refuse filter (1), screen pack (2) is provided with between its lower ending opening and etting (4), with tow strap (3) on described bulky refuse filter (1), for connecting towboat.
2. according to claim 1 a kind of can the horizontal trawlnet of fish eggs and larvae of simple and easy separation bulky refuse, it is characterized in that, described bulky refuse filter (1) up and down both ends open is respectively provided with a steel ring, the steel ring of described upper end open is provided with 4 tow straps (3), the steel ring of described lower ending opening is covered with a screen pack (2) and connects etting (4).
3. according to claim 2 a kind of can the horizontal trawlnet of fish eggs and larvae of simple and easy separation bulky refuse, it is characterized in that, described steel ring area is 0.5 square metre.
4. according to claim 1 and 2 a kind of can the horizontal trawlnet of fish eggs and larvae of simple and easy separation bulky refuse, it is characterized in that, described screen pack (2) mesh is the square that length and width is 10 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420635266.9U CN204206942U (en) | 2014-10-29 | 2014-10-29 | A kind of can the horizontal trawlnet of fish eggs and larvae of simple and easy separation bulky refuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420635266.9U CN204206942U (en) | 2014-10-29 | 2014-10-29 | A kind of can the horizontal trawlnet of fish eggs and larvae of simple and easy separation bulky refuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204206942U true CN204206942U (en) | 2015-03-18 |
Family
ID=52975668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420635266.9U Expired - Fee Related CN204206942U (en) | 2014-10-29 | 2014-10-29 | A kind of can the horizontal trawlnet of fish eggs and larvae of simple and easy separation bulky refuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204206942U (en) |
-
2014
- 2014-10-29 CN CN201420635266.9U patent/CN204206942U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20151029 |
|
| EXPY | Termination of patent right or utility model |