Vertical V-surface grid plate

A curved surface and grid technology, which is applied in the field of vertical curved V-shaped grid mesh panels, can solve problems such as difficult target water layers of mesh panels

Inactive Publication Date: 2015-08-19
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the influence of the weight and structure of the stencil itself, it is difficult to ensure that the stencil is in the target water layer during surface trawling operations. In addition, fishing boats need to have high drag force and towing speed, which is not suitable for small and medium-sized trawler fishing boats. use

Method used

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  • Vertical V-surface grid plate
  • Vertical V-surface grid plate
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Embodiment Construction

[0015] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the present embodiments are not intended to limit the present invention, and any similar structures and similar changes of the present invention should be included in the protection scope of the present invention.

[0016] Depend on Figure 1 to Figure 3 As shown, a vertical curved V-shaped grid panel provided by the embodiment of the present invention is composed of an upper deflector 1, a V-shaped curved wing plate 2 with a large aspect ratio and a receding angle, and a dragging reinforcement plate 3. The lower deflector 4 is composed of a plurality of V-shaped curved wing plates 2 with large aspect ratios and receding angles at equal intervals between the upper deflector 1 and the lower deflector 4. They are arranged backwards at equal intervals, and are provided with dragging reinforcement plates 3 to connect with V-shaped curved wing...

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Abstract

The invention relates to a vertical V-surface grid plate comprising an upper guide plate, a plurality of V-surface wing plates, a warp reinforcing plate and a lower guide plate. Each V-surface wing plate has a high span-chord ratio and has a receding angle. The V-surface wing plates are disposed at equal intervals between the upper guide plate and the lower guide plate and are arranged backward at equal intervals; the warp reinforcing plate is connected with the V-surface wing plate, forming a grid whole. The vertical V-surface grid plate is suitable for fishing vessels different in total tonnage, is good in extensibility, is higher in hydropower efficiency and meets the needs of surface, middle and bottom trawling operations.

Description

technical field [0001] The invention belongs to the technical field of marine fishery fishing tools, in particular to a vertical curved V-shaped grid net plate. Background technique [0002] The main function of the trawl net plate is to expand the horizontal expansion of the net gear and increase the sweeping area of ​​the trawl net. It is an important accessory in single-vessel trawling fishing operations. At present, the common types of stencils in trawl fishery include rectangle, ellipse, V-shape, vertical curved surface, vertical curved surface V-shaped, slotted and so on. Among them, the vertical curved V-shaped screen adopts a large aspect ratio structure design with a certain dihedral angle and receding angle, which is characterized by large expansion force and good horizontal stability, and is suitable for middle and bottom trawls. However, due to the influence of the weight and structure of the stencil itself, it is difficult to ensure that the stencil is in the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K73/045
CPCA01K73/045Y02P60/60
Inventor 梁振林姜昭阳邓跃
Owner SHANDONG UNIV
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