CN201653398U - Warp level-angle measurer - Google Patents
Warp level-angle measurer Download PDFInfo
- Publication number
- CN201653398U CN201653398U CN2010200331567U CN201020033156U CN201653398U CN 201653398 U CN201653398 U CN 201653398U CN 2010200331567 U CN2010200331567 U CN 2010200331567U CN 201020033156 U CN201020033156 U CN 201020033156U CN 201653398 U CN201653398 U CN 201653398U
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- alloy panel
- support bar
- aluminium alloy
- screw
- aluminum alloy
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- Expired - Fee Related
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Abstract
A warp level-angle measurer relates to a measuring instrument used for marine fishery trawling operation. The warp level-angle measurer utilizes a small-sized marine magnetic compass, and is characterized in that an aluminum alloy panel and supporting rods are assembled on the small-sized marine magnetic compass, a round hole is arranged at the center of the aluminum alloy panel, the diameter of the round hole is equal to that of the compass surface, four corners of the aluminum alloy panel are provided with screw holes used for fixing assembling screws with an outer casing of the compass, screw holes used for mounting the supporting rods are arranged at the center points of the two edges of the aluminum alloy panel, a mark line served as a datum point is manufactured at the screw hole on one supporting rod, the center link of the screws for mounting the supporting rods at the center points at two edges of the aluminum alloy panel penetrates through a circle center of the round hole at the center of aluminum alloy panel, and the lower portion of each supporting rod is a section of a screw stem while the upper end of the supporting rod is provided with a semicircular ring. The warp level-angle measurer is used for measuring trawl net warp angles.
Description
Technical field
The utility model relates to the measuring appliance that the sea fishery trawling is used.
Background technology
Single boat trawl is the important mode of fishing for of of China's trawl-net fishing, uses two blocks of web plates as netting gear horizontal expansion device, makes trawlnet open state of maintenance level in the towing process.
Web plate is to utilize hydrodynamic pressure, makes netting gear obtain the main member of expansion.The horizontal expansion of web plate directly influences the horizontal expansion of traw mouth, and then influences the fishery harvesting effect of trawlnet.
At present horizontal expansion Determination of distance between two blocks of web plates in the otter-trawl operation is mainly used the web plate stadimeter.It is by sensor installation on web plate that the web plate stadimeter is measured, and measures the spacing of two web plate sensors by transmitting and receiving sound wave, and data are sent to the trawlnet monitoring system.This quasi-instrument is mainly by foreign-made, and is integrated in the trawlnet monitoring system, as the contained stadimeter of SCANMAR wireless type trawlnet monitoring system of Norway.Though the web plate stadimeter has accurately, in real time, advantage intuitively, the equipment complexity, the installation difficulty height, poor mobility, the cost height, a complete set of price is about 400,000 dollars.In addition, the web plate that sensor is housed when operation, operate need very careful, with the damage of avoiding sensor with lose.Install the trawlnet monitoring system except that the large-scale middle layer trawl factory trawler of small part at present, most of fishing boats estimate that by rule of thumb accuracy is lower, influence the High-efficient Production of single boat trawl fishery.Other approach that address the above problem are to be equipped with to drag guiding principle level angle measuring appliance, then, utilize to record the data of draging the guiding principle level angle, by calculating the horizontal expansion situation that obtains traw mouth.
The utility model content
The problem that the utility model need solve provides a kind of guiding principle level angle measuring appliance that drags.
The technical solution of the utility model adopts small-sized navigation magnetic compass, it is characterized in that small-sized navigation is with assembling aluminium alloy panel and support bar above the magnetic compass, circular hole is arranged in the middle of the aluminium alloy panel, the diameter of this circular hole is identical with the diameter of card, aluminium alloy panel is useful on equipped screw and the fixing screw hole of compass shell for four jiaos, aluminium alloy panel both sides mid point is useful on the screw that support bar is installed, one of them support bar screw place is shaped on the mark line as reference point, and the line of centres of the screw of both sides mid point installation support bar is by the center of circle of circular hole in the middle of the aluminium alloy panel; The support bar bottom is one section screw rod, and post upper is a semicircular ring.
The utility model coincidence measurement trawlnet drags the measurement requirement of guiding principle and stem stern center line angle, has easy and simple to handle, economical and practical advantage.
Description of drawings
Fig. 1 represents to drag guiding principle level angle measuring appliance; Fig. 2 represents aluminium alloy panel.
Embodiment
Drag guiding principle level angle measuring appliance (Fig. 1) and be made up of with magnetic compass 6, aluminium alloy panel 7, support bar 8 small-sized navigation, the card diameter of magnetic compass 6 is 100mm; Aluminium alloy panel 7 profiles are long * wide be 120mm * 120mm, thickness is 5mm; The diameter of circular hole 4 (Fig. 2) is identical with the diameter of card in the middle of the aluminium alloy panel, is convenient to read the reading on the compass; Aluminium alloy panel is shaped on for four jiaos and is used for equipped screw and the fixing screw hole 3 (Fig. 2) of compass shell; Aluminium alloy panel both sides mid point is useful on the screw 1,2 (Fig. 2) that support bar is installed, and one of them support bar screw place is shaped on the mark line 5 (Fig. 2) as reference point; The line of centres of the screw 1,2 (Fig. 2) of both sides mid point installation support bar is by the center of circle of circular hole 4 (Fig. 2) in the middle of the aluminium alloy panel; Support bar 8 (Fig. 1) material is a diameter 10mm aluminium alloy, and total length is 300mm, and support bar 8 (Fig. 1) bottom is the long screw rod of one section 100mm, and support bar 8 (Fig. 1) upper end is connected with a diameter 35mm semicircular ring.
During measurement, the semicircular ring of measuring appliance two post uppers that assemble is depended on draging on the guiding principle of a side on the quarter, make the direction of the support bar of datum towards web plate, another support bar then is in the position near stern.Adjust the height of two support bars and aluminium alloy panel, make panel level as far as possible when survey measurements, read the reading of datum on the compass.Again measuring appliance is changed to opposite side and draged on the guiding principle, read the reading of datum equally.Then can obtain the two angle number of degrees that drag between guiding principle and stem stern center line.
Claims (2)
1. one kind is draged guiding principle level angle measuring appliance, adopt small-sized navigation magnetic compass, it is characterized in that small-sized navigation is with assembling aluminium alloy panel and support bar above the magnetic compass, circular hole is arranged in the middle of the aluminium alloy panel, the diameter of this circular hole is identical with the diameter of card, aluminium alloy panel is useful on equipped screw and the fixing screw hole of compass shell for four jiaos, aluminium alloy panel both sides mid point is useful on the screw that support bar is installed, one of them support bar screw place is shaped on the mark line as reference point, and the line of centres of the screw of both sides mid point installation support bar is by the center of circle of circular hole in the middle of the aluminium alloy panel; The support bar bottom is one section screw rod, and post upper is a semicircular ring.
2. a kind of guiding principle level angle measuring appliance that drags according to claim 1, the card diameter that it is characterized in that magnetic compass is 100mm; The aluminium alloy panel profile is long * wide be 120mm * 120mm, thickness is 5mm; Support bar is a diameter 10mm aluminium alloy, and total length is 300mm, the long 100mm of the screw rod of support bar bottom, the semicircular ring diameter 35mm of post upper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200331567U CN201653398U (en) | 2010-01-18 | 2010-01-18 | Warp level-angle measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200331567U CN201653398U (en) | 2010-01-18 | 2010-01-18 | Warp level-angle measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653398U true CN201653398U (en) | 2010-11-24 |
Family
ID=43118639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200331567U Expired - Fee Related CN201653398U (en) | 2010-01-18 | 2010-01-18 | Warp level-angle measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201653398U (en) |
-
2010
- 2010-01-18 CN CN2010200331567U patent/CN201653398U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20120118 |