Spring-Loaded Plug Retaining Assembly for Child Safety
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Solution Overview
Problem
Small children are at risk of electrical shock when playing with electrical plugs coupled to a wall outlet, as existing solutions fail to securely retain the plugs, leading to potential electrical hazards.
Innovation Solution
An electrical plug retaining assembly that includes first and second electrical plug sockets with retaining arm assemblies and springs, which secure the electrical prongs when not depressed, and a rear support plate assembly with front and rear cover plates to fix the assembly to a wall outlet, preventing accidental removal and exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrical plugs are left inserted in wall outlets, then electrical connectivity is maintained, but children are at risk of electrical shock
Solution Approach 1:
The patent introduces an intermediary device (the retaining assembly with cover plate and retaining arms) that mediates between the electrical plug and the wall outlet. This intermediary mechanism physically secures the plug in place while providing a protective barrier, allowing electrical connectivity to be maintained without exposing children to electrical shock hazards.
Solution Approach 2:
The retaining assembly is divided into functional segments: a cover plate that provides external protection, retaining arms that secure the plug, and a mounting mechanism that attaches to the wall outlet. This segmentation allows each component to perform its specific safety function while working together to maintain electrical connectivity.
2Object-affected harmful factors
If existing plug retention solutions are used, then some protection is provided, but plugs can still be accidentally removed or accessed by children
Solution Approach 1:
The retaining arms are designed to be dynamically adjustable - they can be depressed to release the plug for intentional removal, but spring-loaded mechanisms automatically return them to the secured position. This dynamic behavior provides reliable retention while allowing controlled access when needed.
Solution Approach 2:
The cover plate and retaining arms are positioned to preemptively block children's access to the electrical plug before they can insert objects or cause electrical shock. The mechanism creates a preliminary physical barrier that prevents harmful actions before they can occur.
3Reliability
If a secure retaining mechanism is implemented, then plug security is improved, but device complexity increases
Solution Approach 1:
The retaining arms utilize spring-loaded mechanisms that automatically return to their secured position after being depressed. This self-service feature eliminates the need for complex control systems, motors, or electronic components, achieving reliable plug retention through simple mechanical self-actuation.
Solution Approach 2:
The patent combines multiple safety functions into a single integrated assembly: the cover plate provides external protection, the retaining arms secure the plug, and the mounting mechanism attaches to the wall outlet. By merging these functions into one cohesive device, the overall complexity is reduced compared to implementing separate mechanisms for each function.
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
The assembly effectively secures electrical plugs to a wall outlet, reducing the risk of electrical shock by ensuring the plugs are retained and preventing accidental insertion or removal, thereby enhancing safety for children.
Implementation Method 1
The first spring contacts the housing and the first retaining arm assembly and biases the first retaining arm assembly in a first direction to move the first pin through the first and second holes of the first female terminal portion when the first retaining arm assembly is not depressed.
Data Source
AI summary
An electrical plug retaining assembly is provided. The assembly includes a first electrical plug socket adapted to receive first and second electrical prongs of a first electrical plug therein when first and second retaining arm assemblies in the first electrical plug socket are depressed. The first electrical plug socket secures the first and second electrical prongs of the first electrical plug therein when first and second springs in the first electrical plug socket bias the first and second retaining arm assemblies, respectively, thereof in first and second directions, respectively, when the first and second retaining arm assemblies in the first electrical plug socket are not depressed. The first electrical plug socket has first and second electrical terminals that are electrically coupled to the first and second electrical prongs, respectively, of the first electrical plug.