Safety Socket Device with Movable Assemblies for Foreign Body Shielding
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Solution Overview
Problem
Existing sockets pose a risk of electric shock due to the potential insertion of foreign bodies, which existing technologies have not adequately addressed for improving electrical safety and dustproofing.
Innovation Solution
A safety socket device featuring a carrier with two movable assemblies, a first transversely movable assembly and a second longitudinally movable assembly, which shield the plug holes from foreign bodies through external pushing forces, preventing insertion and providing dustproofing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional socket design is used, then the structure is simple, but foreign bodies can easily insert into the plug holes causing electric shock hazards
Solution Approach 1:
The patent applies the dynamics principle by using movable assemblies (first and second movable assemblies) that can move between a blocking position and an exposing position. These assemblies are actuated by elastic elements (springs) that provide restoring force, allowing the socket to dynamically transition between safe (blocked) and operational (exposed) states based on plug insertion force.
Solution Approach 2:
The patent implements preliminary action by having the movable assemblies positioned in advance to block the plug holes before any foreign body insertion. The elastic elements are pre-loaded to maintain the blocking position, and only when sufficient force is applied by a proper plug does the system transition to the exposing position.
2Ease of operation
If the plug holes are always exposed for easy access, then the ease of operation is improved, but the risk of foreign body insertion and electric shock increases
Solution Approach 1:
The patent uses the movable assemblies as intermediary elements between the plug holes and the external environment. These assemblies act as mediators that selectively allow access to the plug holes only when appropriate force is applied, blocking foreign bodies while permitting legitimate plug insertion.
Solution Approach 2:
The patent applies preliminary anti-action by having the movable assemblies positioned in advance to prevent (anti-action) foreign body insertion. The elastic elements provide a counter-force that opposes unauthorized insertion attempts, and only when sufficient force is applied by a proper plug does the system allow access.
3Reliability
If movable assemblies are added to block plug holes, then electrical safety is improved, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the protective function into separate movable assemblies for each plug hole (first movable assembly for first plug hole, second movable assembly for second plug hole). This modular approach allows independent operation of each assembly while maintaining overall system safety.
Solution Approach 2:
The movable assemblies serve multiple functions: they block foreign bodies, guide proper plug insertion, and work with elastic elements to provide both protection and operational capability. This multi-functionality reduces the need for additional separate components.
Data Source
AI summary
A safety socket device includes a carrier, a first movable assembly and a second movable assembly. The carrier has a first plug hole and a second plug hole. The first movable assembly including a first moving element is transversely movably disposed in the carrier. The first moving element has two first guide portions, and the two first guide portions are moved for exposing the first plug hole from the first moving element by an external pushing force. The second movable assembly including a second moving element is longitudinally movably disposed in the carrier. The second moving element has a second guide portion, and the second guide portion is moved for exposing the second plug hole from the second moving element by the external pushing force.