Vertical type curved face water diversion plate

Abstract

The invention relates to a fishing tackle, in particular to a vertical curved cutwater board, which comprises a baffle board, an upper scupper board, a lower scupper board, a connection board and a netting gear connection board. The cutwater board is characterized in that the baffle board is arc-shaped, the straight edge of the baffle board is connected with the connection board through a U-shaped connection piece and the arc edge of the baffle board is connected with the arc shaped upper and lower scupper boards. The surface area of the lower baffle board is larger than that of the upper baffle board. The included angle between the baffle board and the upper and the lower scupper boards is larger than 90 DEG. The cutwater board is designed from a viewpoint of hydrodynamics, which changes the surface structure and shape of the cutwater board, increases the water flow impulsive force of the cutwater board and fully achieves the horizontal expansion of the netting gear and the multi-layer fishing. The cutwater board has the advantages of high expansion capacity, great stability without tending to side turning, easy operation, long service life, good application effect and, etc.

Description

Technical field: [0001] The invention relates to fishing implements, in particular to a vertical curved water dividing board. Background technique: [0002] As we all know, trawling is the most widely used fishing tool in marine fishing. Traditional trawls are divided into double trawls and single trawls. Double trawls are towed by two tugboats respectively to drag the two forces of the trawl to open the mouth of the double trawl. For fishing, the disadvantage is that two tugboats must operate at the same time, and the energy utilization rate is low. The water dividing plate is an important part in the single trawling operation process. Its function is to make the net mouth Effective opening, thereby increasing the sea-sweeping area of ​​the dredging single trawling net, and increasing the fishing output. [0003] At present, the water dividing plate is provided with equal-area straight plate-shaped upper and lower water baffles on both sides of the rectangular partition. T...

AI Technical Summary

Problems solved by technology

[0002] As we all know, trawling is the most widely used fishing tool in marine fishing. Traditional trawls are divided into double trawls and single trawls. Double trawls are towed by two tugboats respectively to drag the two forces of the trawl to open the mouth of the double trawl. For fishing, the disadvantage is that two tugboats must operate at the same time, and the energy utilization rate is low. The water dividing plate is an important part in the single trawling operation process. Its function is to make the net mouth Effective opening, so as to increase the sweeping area of ​​the dredging single trawling net and increase the fishing output

[0003] At present, the water dividing plate is provided with equal-area straight plate-shaped upper and lower water baffles on both sides of the rectangular partition. The partition is connected to the connecting plate through a U-shaped connector. The holes for the connection of fishing boats, the outer side of the upper water baffle and the back of the lower water baffle are respectively provided with a net gear connection plate for connection with the fishing net, and a connection hole is provided on the net gear connection plate. This water diversion plate can only be used for Small mesh (mesh size is 100-1,000 mm) single trawl net, and can only be adapted to the bottom trawling operation, the application area is narrow; the specifications and models are single; the shape mainly has oval and rectangle, and the surface structure design is relatively simple; The water flow momentum is relatively small; there are great limitations in the use of single trawl nets with various models and complex operations (mesh size is 1,000-30,000 mm), and these limitations directly affect the single trawl nets. Fishing effect and popularization and application

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