Buoyant cover net for lamplight cover net fishing boat

Abstract

The invention relates to a buoyant cover net for a lamplight cover net fishing boat, belongs to marine fishing equipment, and aims to overcome potential safety hazards existing in production operation of existing lamplight cover net fishing boats. The buoyant cover net comprises a circular-ring-shaped propping-up airbag and a cover net body. The cover net body is a cylindrical net tool with a net cover, a long cylindrical net bag is arranged on the net cover and communicated with the interior of the net cover, a plurality of perpendicular net ribs are evenly distributed on a cylindrical net surface, and a plurality of net rib rings are evenly fixed on the net ribs from top to bottom. A plurality of net pendants and binding-off rings are fixed at the bottom of the net tool, a net tool bottom-end rope sequentially penetrates each binding-off ring, and the propping-up airbag is connected with the cover net body through a cover net retraction rope. The buoyant cover net is novel and reasonable in structure and convenient to produce and operate, fishing efficiency is improved, and overall safety performance of the fishing boat is greatly improved.

Description

[0001] technical field [0002] The invention relates to a marine fishing equipment, in particular to a buoyancy cover net used for light cover net fishing boats. Background technique [0003] At present, the fishing boats that go to the Xizhong Nansha to catch pelagic fish mainly use the light cover net fishing method, and the fish caught include squid, shellfish and a small amount of tuna. The current light cover net fishing boat net adopts a flat net edge with a net pendant. After the sea surface is opened, the whole net sinks in an umbrella shape under the drive of the net pendant. The method of opening the net gear is to install a fixed steel truss simply supported rocker arm at four points on both sides of the ship in dislocation, and build a high vertical steel frame on the deck surface to use ropes to restrain the rocker arm. The length of the rocker arm is the length of the captain. 80%, its function is to stretch and cast the cover net, so the operation mode of th...

AI Technical Summary

Problems solved by technology

1. The high vertical steel frame is built on the deck of the fishing boat, which greatly increases the center of gravity of the fishing boat and greatly reduces the anti-overturning performance of the fishing boat

2. The long-span fixed simply supported steel frame rocker arm is restrained by ropes and lacks rigid braking and hydraulic self-locking functions.

If the anchor cable is aging and not replaced in time or the rope is broken when the wind and waves are strong, the free fulcrum rocker will swing freely to close and open with the influence of the wind and waves, causing the fishing boat to lose balance

3. Since the rocker arm is pulled and deployed by ropes, it lacks the function of mechanical synchronous deployment. If one rocker arm is stuck and the other side continues to expand, the large eccentric force formed will cause the fishing boat to overturn and sink.

4. Use the cover net covering the bottom of the boat to carry out fishing operations. The net gear may wrap around the propeller and cause the fishing boat to lose power

5. The technical problem of matching the large eccentric net throwing facilities with the anti-overturning ability of fishing boats

3. The hydraulic self-locking rocker arm is adopted, and the mechanical rigid brake is used instead of the flexible rope brake, which limits the free swing of the rocker arm when it is out of control, which can injure personnel and damage fishing boat facilities

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