Aquaculture Cage Float Fastener for Toolless Submergence
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current aquaculture systems face challenges with float detachment and reattachment, stability, and weight management, leading to inefficiencies in handling and maintenance, particularly when dealing with water-filled floats that add significant weight and require tools for detachment.
Innovation Solution
The introduction of a toolless fastener system using a steel wire core with a grid structure and vinyl coating, allowing for secure and corrosion-resistant attachment and detachment of floats from aquaculture cages without the need for tools, enabling quick detachment and reattachment, improved stability through optimal float placement, and reduced weight handling by allowing cages to sink under their own weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional wire or band attachment methods are used to secure floats to cages, then the attachment is secure and permanent, but the float cannot be easily detached or reattached without tools and destruction of the attachment mechanism
Solution Approach 1:
The fastener system transitions from a static permanent attachment (wire/band) to a dynamic reversible attachment. The snap-fit mechanism allows the float to be securely attached during operation and easily detached when needed, enabling the system to adapt between these two states without tools or destruction.
Solution Approach 2:
The attachment system is divided into separate components: a fastener attached to the cage and a corresponding receptacle on the float. This segmentation allows independent attachment and detachment of the float from the cage, enabling easy reconfiguration without affecting the cage structure or requiring destruction of the attachment mechanism.
2Reliability
If water-filled floats are used to sink the cage, then the cage can be positioned on the ocean floor, but the added weight makes the floats difficult to handle and raise
Solution Approach 1:
The system dynamically adjusts the float's weight state by allowing easy detachment. When the cage needs to be raised, the float is detached from the cage, effectively reducing the total weight that must be lifted. This enables the system to have heavy water-filled floats for positioning while maintaining ease of handling through quick detachment.
Solution Approach 2:
The float is extracted as a separate, detachable component from the cage assembly. This allows the float to be removed from the system when its weight is no longer needed (when raising the cage), separating the positioning function from the transport/handling phase.
3Strength
If aluminum bands and power tools are used to secure wire to the cage, then the wire is securely attached, but the process requires power tools and creates permanent attachment that cannot be reversed
Solution Approach 1:
The complex mechanical system of aluminum bands requiring power tools for compression and bending is replaced with a simple snap-fit fastener system. The fastener provides secure attachment through its design geometry rather than requiring external tools or complex mechanical processes, significantly reducing device complexity while maintaining attachment strength.
4Reliability
If floats are permanently attached to cages, then the attachment is secure, but the cage cannot be used without the float attached and reattachment requires installing new wire or band
Solution Approach 1:
The attachment system is made dynamic and reversible, allowing the float to be attached or detached based on operational needs. The cage can be used with floats attached for surface operation or without floats for bottom positioning, providing versatility while maintaining secure attachment when floats are present.
Solution Approach 2:
The fastener system provides universal attachment capability that works with different float configurations. The cage can operate in multiple modes (with floats for surface operation, without floats for bottom positioning) using the same fastener mechanism, enhancing adaptability and versatility.
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
This solution enables faster and more efficient handling of aquaculture cages, reduces tool-related damage, and enhances stability by allowing for quick detachment and reattachment of floats, minimizing the need for water-filled floats, thus simplifying operations and reducing the risk of damage during handling.
Implementation Method 1
a fastener that allows for a float to be easily detached from and securely reattached to an aquaculture cage
Implementation Method 2
Hollow floats are widely used with oyster cages today
Implementation Method 3
the cage is flipped over to place the floats beneath the cage in the water. In this orientation, the cage is exposed to the environment above the ocean's surface for a temporary period to allow the cage including the oysters to be exposed to sunlight. Exposure to sunlight dries out and kills unwanted organisms and aquatic growth
Data Source
AI summary
A method for aquaculture including a fastener that allows for a float to be easily detached from and securely reattached to an aquaculture cage. The method provides multiple toolless approaches to submerse an aquaculture cage that is buoyant in water when attached with a fastener to a hollow float defining a volume filled with air. The method includes in a first approach, detaching the hollow float from the aquaculture cage by releasing the fastener without using a tool to allow the cage to sink in the water and in a second approach, with the hollow float attached to the aquaculture cage, at least partially filling the float with fluid to fully submerse both the cage and the hollow float beneath a surface of the water.