Boiling Water Tap Compound Movement Safety Mechanism
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Solution Overview
Problem
Existing boiling water taps lack user awareness of the high temperature output, leading to safety risks due to non-intuitive operation and ergonomic issues, particularly for children, as they often require complex push-button operations that can be accidentally activated.
Innovation Solution
A dispensing arrangement with a compound movement operating mechanism that requires a series of specific physical actions, such as push-rotate or translational movements, to unlock and operate the tap, combined with electronic sensors and a control unit to ensure safe and intuitive operation, providing alerts for correct usage and preventing accidental activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple push-button operation is used, then ease of operation is improved, but safety deteriorates due to accidental activation and lack of user awareness
Solution Approach 1:
The operation is segmented into distinct phases: a first movement phase (pushing the operating element forward) that prepares the system, and a second movement phase (rotating the operating element) that actually activates the tap. This segmentation prevents accidental activation by requiring two intentional actions.
Solution Approach 2:
The first movement phase serves as a preliminary action that prepares the system for activation without actually opening the tap. During this phase, the operating element is pushed forward to engage the shut-off valve mechanism, but water flow is prevented until the second rotation movement is executed.
2Reliability
If a compound movement operation is required, then safety is improved by preventing accidental activation, but ease of operation deteriorates due to complex operation steps
Solution Approach 1:
The two movement phases (pushing and rotating) are merged into a single continuous operating sequence using the same operating element. This integration maintains safety while improving ergonomics by eliminating the need for separate controls or hands.
Solution Approach 2:
The operating element is designed to dynamically transition between different movement modes: linear movement for the first phase and rotational movement for the second phase. This dynamic design allows the single operating element to perform multiple functions throughout the activation sequence.
3Reliability
If cold forerunning water is provided, then user safety is improved by cooling the outlet, but the problem deteriorates by delaying the availability of boiling water
Solution Approach 1:
The tap operation uses periodic action in the form of distinct movement phases: a first movement phase for preparation and a second movement phase for activation. This structured periodic operation ensures safety while maintaining efficiency by clearly separating the preparation and activation steps.
Data Source
AI summary
A dispensing arrangement for water comprises a tap, in particular a kitchen tap such as a boiling water tap, provided with a shut-off valve and an operating element, such that the dispensing arrangement is operable with a compound movement of the operating element. For dispensing of the water at least a portion of the compound movement serves to release the shut-off valve prior to operation and comprises at least one of a movement to-and-fro, a repeated movement and a movement of at least a predetermined duration and wherein a subsequent portion of the compound movement serves to operate the shut-off valve.