Trawl net with a plurality of parallel bag sets and catching method thereby

A bag and trawling technology, applied in the field of fishing tools, can solve the problems of death, easily deformed drainage, poor catch, etc., and achieve the effects of reducing power, improving survival rate and fresh quality

Active Publication Date: 2014-01-01
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention mainly solves the technical problems that the fish catches are easily deformed due to the accumulation of fish catches in the existing trawling operation, and the catches are squeezed, scratched, dead, or even

Method used

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  • Trawl net with a plurality of parallel bag sets and catching method thereby
  • Trawl net with a plurality of parallel bag sets and catching method thereby
  • Trawl net with a plurality of parallel bag sets and catching method thereby

Examples

Experimental program
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Example Embodiment

[0036] Embodiment 1: The trawl with multiple groups of pouches in parallel in this embodiment 1 is used for trawling operations of fishing boats, such as figure 1 As shown, the trawl includes a net wing 1, a net body 2 and a net bag 3. The net wing is connected with a fishing boat 11 connected to the fishing boat. The net bag is installed at the rear end of the net body and connected to the net body. The net bag includes

[0037] The frame 31 is installed on the back of the net body for connecting the bag and the net body and expanding the bag mouth. The bag mouth opening and closing device, the bag detaching device and the controller are installed on the frame, and the outer surface of the frame is attached Covered with a smooth soft rubber layer;

[0038] Four pouches 32 are used to contain the catch. The pouches are stacked in parallel and installed on the frame. The pouch mouth is equipped with a front frame 321. Each pouch is provided with a strand 322 connected to the fishing ...

Example Embodiment

[0044] Embodiment 2: The trawl with multiple sets of pockets in parallel of this embodiment 2 includes a net wing, a net body and a net bag. The net wing is connected with a fishing boat connected to the trawl, and the net bag is installed at the rear end of the net body. Connected to the net body, a telescopic cylinder is installed in the longitudinal rod of the front frame of the bag. The telescopic cylinder is connected to the controller. When the front frame of the bag needs to be opened, the controller controls the extension of the telescopic cylinder, and the cylinder overcomes the The retracting force of the elastic element drives the longitudinal rods to extend. The upper and lower bars of the front frame separate to form an expanded pocket. The fish caught by the trawl can enter the pocket through the frame and be collected. If reset is required, the controller controls The telescopic cylinder retracts and drives the upper cross rod to reset. At the same time, the elast...

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Abstract

The invention discloses a trawl net with a plurality of parallel bag sets and catching method thereby. The trawl net comprises a wing, a body and a net bag. The net bag comprises a frame and a plurality of bags stacked on the frame in parallel. The frame is provided with a bag entry opening-closing device, a bag removal device and a controller. The trawl net with the net bag composed of multiple net bags stacked in parallel has the advantages that catches obtained with the trawl net can be collected into the corresponding net bag in batches and timely removed from the body to be lifted to a fish boat along with the net bags, the problem that the catches are squeezed and scratched, or die and even deteriorate due to long-term trawling is solved, survival rate of the catches is increased, freshness of the catches is improved, and owing to fractional extraction and light weight of the net bags, chances of the fish boat being tangled are slimmed.

Description

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Claims

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Application Information

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Owner ZHEJIANG OCEAN UNIV
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