One-Way Flap Fish Catcher for Silver Fin Carp
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Silver fin carp, known for jumping out of water when excited by noise, pose a risk to fishermen due to their size and tendency to jump back into the boat, necessitating a safe and efficient catching method.
Innovation Solution
A fish catcher device with a support frame, one-way flaps, and a buoyant attachment system that allows fish to jump into the boat while preventing return to the water, featuring a grid-like flap arrangement and flexible attachment to the boat for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional hook and worm approach is used, then fishermen can catch fish, but the process is time-consuming and less efficient
Solution Approach 1:
The device is pre-positioned on the boat side before fishing begins, with the flap grid already configured to allow fish entry while preventing escape. This preliminary setup eliminates the need for active chasing or complex retrieval operations during fishing, significantly improving efficiency and reducing time loss.
Solution Approach 2:
The one-way flap grid acts as an intermediary mechanism between the fish and the boat. Instead of direct human intervention to catch each fish, the flap grid mediates by automatically allowing fish to enter the collection area while preventing their escape, thereby increasing productivity without requiring additional time for manual handling.
2Ease of operation
If fish are allowed to jump into the boat without restriction, then catching is simplified, but fish can jump back out and fishermen are at risk of injury
Solution Approach 1:
The catching system is segmented into distinct functional zones: the open collection area at the top where fish land safely, and the controlled flap grid barrier below that prevents escape. This segmentation allows fish to freely jump into the boat while the segmented flap structure systematically controls their movement, preventing injury risks and simplifying operation simultaneously.
Solution Approach 2:
The one-way flap grid serves as an intermediary safety mechanism between the jumping fish and the fishermen. It mediates the interaction by allowing fish to enter the boat freely for easy operation, while simultaneously blocking their ability to jump back out, thereby eliminating the harmful injury risk without complicating the catching process.
3Reliability
If a solid barrier is used to prevent fish escape, then fish are contained, but fish cannot enter the boat
Solution Approach 1:
The flap grid transforms the static barrier concept into a dynamic system. Each flap can pivot independently based on water flow and fish movement, automatically opening to allow fish entry while closing to prevent escape. This dynamic behavior simultaneously achieves reliable containment and easy fish entry without requiring complex operational intervention.
Solution Approach 2:
The flaps function as flexible membranes that can deform and pivot in response to external forces. This flexibility allows the barrier to adaptively open for fish entry while maintaining its containment function, resolving the contradiction between solid barrier reliability and operational ease by introducing controlled flexibility into the barrier structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables safe and efficient capture of silver fin carp by allowing them to jump into the boat while preventing escape, reducing the risk of injury from large fish and facilitating easy retrieval.
Implementation Method 1
a flap grid which has a plurality of one-way flaps that allow a fish to jump through the support frame from the water towards a boat, while preventing the fish from returning to the water
Implementation Method 2
a buoyant support which includes an attachment ring removably coupled with the support frame
Data Source
AI summary
A fish catching device includes a modular frame member having a buoyant device secured to a first side of the frame member and the second side of the frame member is capable of being secured to a watercraft. The frame member incorporates a plurality of apertures. A plurality of one-way doors is provided, each hingedly secured to the frame and cover an individual aperture. The device is configured to rest above a surface of water permitting a fish to jump through any of the doors thereby causing the fish to slow its trajectory and direct it to enter the watercraft.