Safety Socket Cover Dynamics for Child Protection
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Solution Overview
Problem
Existing safety sockets, including multiple and mobile variants, lack effective child protection mechanisms that are easy to use and difficult to circumvent, posing a risk to young children who may accidentally or curiously interact with them.
Innovation Solution
A safety socket design featuring a divided cover, vertically movable locking plates, a horizontally displaceable blocking element with a return spring, and earth conductor contacts that move into position upon plug insertion, concealing contact sleeves and requiring specific alignment for plug insertion, thus preventing accidental access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a child safety device with a glued-in protective plate is installed, then child protection is improved, but the ease of operation deteriorates due to tedious alignment and difficult removal
Solution Approach 1:
The protective cover is designed as a dynamic component that automatically moves between closed (protective) and open (accessible) positions. The spring element provides automatic return to the closed position after plug insertion, eliminating the need for manual alignment and ensuring consistent child protection without tedious operation.
Solution Approach 2:
The safety mechanism serves itself through automatic operation. The spring element automatically returns the cover to its protective closed position after the plug is inserted and removed, without requiring user intervention for alignment or manual resetting. The system self-regulates between safe and accessible states.
2Reliability
If a pseudo plug is used to block the socket, then child protection is improved, but the ease of operation deteriorates due to difficulty in removal when socket is activated
Solution Approach 1:
The cover is designed as a dynamic component that automatically responds to plug insertion. When a plug is inserted, the cover moves to an open position allowing the plug to pass through, then automatically returns to the closed protective position when the plug is removed. This eliminates the need for separate blocking devices and ensures automatic ease of removal during legitimate use.
3Reliability
If the socket is completely blocked, then child protection is improved, but the productivity deteriorates due to inability to use the socket
Solution Approach 1:
The cover transitions dynamically between two states: closed (protective) when no plug is inserted, and open (accessible) when a plug is inserted. This automatic state change ensures continuous child protection while maintaining full socket usability during legitimate use, eliminating the need for separate blocking devices.
Solution Approach 2:
The safety mechanism automatically distinguishes between legitimate use (plug insertion) and unauthorized access attempts. The spring element automatically returns the cover to the protective closed position after plug removal, ensuring continuous protection without manual intervention while maintaining full usability during proper operation.
4Reliability
If locking plates are moved vertically together with the cover, then the child protection is improved, but the device complexity increases
Solution Approach 1:
The locking plates are merged with the cover structure, moving together as a single unit. This integration reduces the number of separate components and simplifies the overall structure while maintaining the protective function. The spring element provides the necessary locking action without requiring separate complex mechanisms.
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 design effectively conceals and protects the socket's contact sleeves, preventing easy optical perception and access by children, ensuring safe operation while maintaining compatibility with standard plugs.
Implementation Method 1
a return spring, wherein the blocking element can be reset through the return spring to the starting position
Implementation Method 2
the earth conductor contacts have foot elements pointing into the interior of the safety socket, which are brought into the contact position by the downward movement when a safety plug is inserted
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Safety socket with a central shaft for a safety plug, a power conductor, a neutral conductor and an earth conductor arranged in the central shaft, wherein the shaft and the safety plug are dimensionally matched, with a cover (4), an upper locking plate (7), a lower locking plate (8), a locking element (9) for a contact receptacle (11) arranged in the central shaft for the contact sleeves for the plug contacts of a safety plug and earth conductor contacts (14).