Rotating Retaining Rod for Pool Cover Safety Lock
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Solution Overview
Problem
Existing pool cover safety devices are prone to accidental disengagement due to falls, which compromises safety and complicates the handling of semi-rigid or rigid pool covers, especially when they are not properly secured to the pool walls.
Innovation Solution
A safety device featuring a retaining rod mounted on a support that can rotate between active and retracted positions, ensuring the lock remains engaged during falls and simplifies disengagement, incorporating magnetic coupling for automated operation and visual indicators for ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed retaining rod is used in the safety device, then the structure is simple, but the lock can disengage accidentally during falls
Solution Approach 1:
The retaining rod is transformed from a fixed component to a rotatable one, allowing it to dynamically adjust its position. The rod can rotate between a first position (presenting the retaining face to engage the lock) and a second position (retracting the retaining face to prevent disengagement during falls), thereby resolving the contradiction between safety and device complexity.
2Reliability
If the retaining rod is made rotatable to prevent accidental disengagement, then safety is improved, but the mechanism becomes more complex
Solution Approach 1:
The mechanical rotation mechanism for the retaining rod is replaced with a magnetic coupling system. The magnetic coupling allows the rod to rotate and position itself automatically through magnetic attraction and repulsion forces, eliminating the need for complex mechanical actuators while maintaining the safety function.
3Ease of operation
If a magnetic coupling system is implemented for automated operation, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The magnetic coupling system enables the retaining rod to automatically position itself and engage/disengage the lock without human intervention. The system self-regulates through magnetic forces, providing automated operation that improves ease of use while the integration into the existing structure minimizes the increase in device complexity.
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
Enhances safety by preventing accidental disengagement during falls and simplifies the locking and unlocking process, making it suitable for automated systems while maintaining compactness and reducing finger pinching risks.
Implementation Method 1
The magnetic coupling includes at least one pair of permanent magnets. One is housed in the enlarged portion, and the other in the magnetic coupling portion.
Data Source
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AI summary
A safety device for a pool cover, particularly a swimming pool cover, comprises a support (403, 503) and a retaining rod (405, 505) mounted on the support (403, 503). The rod extends along a longitudinal axis (477, 577) and has at least one retaining face (411) suitable for engaging with a locking mechanism (1). The support (403, 503) is securely mounted to the cover or a pool wall such that the longitudinal axis (477, 577) of the rod (405, 505) is generally positioned vertically. The rod (405,505) is able to rotate relative to the support (403,503) around an axis of rotation substantially parallel to its longitudinal axis (477,577), between at least a first position, in which the retaining face (411) is active and is directed towards the support (403,503), and a second position, in which the retaining face (411) is retracted.