The invention relates to the technical field of trawl fishing, in particular to a trawl device. The invention further relates to a fishing boat with the trawl device. Comprising a trawl net, two water diversion plates arranged on the left side and the right side of a net opening of the trawl net respectively and net wing plates capable of changing the stress state along with the change of the dragging speed, the multiple net wing plates form wing plate sets, the two sets of net wing sets are installed at the upper end and the lower end of the net opening of the trawl net respectively, and the two sets of net wing sets are symmetrically arranged. And the water diversion plate is connected with the trawl net through a traction rope. According to the trawl, force in the vertical direction can be generated through the trawl wing plates, the force in the vertical direction of the trawl opening can be increased along with increasing of the trawl speed, then traction force increased by the water diversion plate is offset, stress in all directions of the trawl opening is balanced, the shape is kept unchanged, and the trawl is simple in structure and convenient to use. By additionally arranging the closing-up device, the gap between the two wing plate layers can be quickly closed up when the trawl is closed up, the closing-up efficiency is improved, and the possibility that fish shoals escape is reduced.
本发明涉及拖网捕鱼技术领域,具体是涉及一种拖网装置。还涉及一种具有拖网装置的渔船。包括有拖网,以及两个分别设置在拖网的网口处的左右两边的分水板,以及能够跟随拖行速度改变而改变受力状态的网翼板,多个网翼板形成翼板组,两组网翼组分别安装在拖网的网口处的上下两端,两组网翼组对称呈对称设置,分水板通过牵引绳与拖网连接。该拖网通过网翼板能够产生上下方向的力,可以使得网口上下方向的力也随拖网速度的变大而变大,继而抵消分水板增加的牵引力,从而使得网口各方向的受力均衡,保持形状不变,且结构简单,使用便捷。通过增加收口装置能够在拖网收口时快速将两层翼板层之间的缝隙处进行收口,提高收口效率,降低鱼群逃逸的可能。
Trawl device and fishing boat
一种拖网装置及渔船
2023-03-28
Patent
Elektronische Ressource
Chinesisch
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