Locking Outlet Cover Arms for Child-Resistant Access
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Solution Overview
Problem
Existing tamper-resistant electrical outlet covers are difficult to insert and remove, especially in tight outlet receptacles, and can be easily misplaced. Additionally, they may be too easy to remove for young children, rendering them ineffective in preventing injuries.
Innovation Solution
A tamper-resistant electrical outlet cover design featuring a wall plate with rotatable cover arms and a locking mechanism. The locking mechanism requires a specific action, such as pressing buttons or sliding a slider, to unlock and rotate the cover arms into an open position, making it difficult for young children to access the outlet while remaining intuitive for adults.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional outlet covers are used, then they can be easily inserted and removed, but they are too easy to remove for young children making them ineffective at preventing injury
Solution Approach 1:
The outlet cover employs a dynamic locking mechanism that transitions between locked and unlocked states. The cover arm is biased by a spring to automatically lock into place upon insertion, and can be unlocked by applying sufficient force to overcome the spring bias, enabling the cover to adapt its resistance to removal based on the applied force
Solution Approach 2:
The outlet cover changes the force parameter required for removal based on the state. When inserted, the cover requires minimal force to insert but maximum force to remove, creating a significant force differential that prevents children from removing it while allowing adults to do so intentionally
2Reliability
If outlet covers with locking mechanisms are used to prevent children from removing them, then safety is improved, but they become difficult to insert and remove even for adults
Solution Approach 1:
The locking mechanism is dynamic rather than static. The spring-biased cover arm automatically locks upon insertion and can be easily unlocked by applying force in the correct direction, creating a system that is secure during normal use but readily operable when needed
Solution Approach 2:
The outlet cover performs the locking action automatically upon insertion without requiring any additional action from the user. The spring mechanism self-activates when the cover is inserted, locking it into place without manual intervention, while removal simply requires pulling the cover away
3Reliability
If outlet covers are designed to be secure against removal, then child safety is enhanced, but they can be easily misplaced once removed
Solution Approach 1:
The cover arm and wall plate are designed as separate components that mate together. The cover arm rotates about a pivot point on the wall plate, allowing it to be securely attached when needed and easily separated when removed, reducing the risk of permanent misplacement while maintaining security during use
Data Source
AI summary
Tamper-resistant electrical outlet covers include a wall plate, at least one cover arm rotatably coupled to the wall plate, and a locking mechanism configured to maintain the cover arm in a closed position covering an electrical outlet when the locking mechanism is locked. The locking mechanism is unlocked to allow the cover arm to rotate to an open position exposing the electrical outlet.