Valve Handle Indicator Layout for Correct Rotation Direction
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Solution Overview
Problem
Users often rotate valve handles in the wrong direction, leading to potential damage and delayed valve operation, especially in systems requiring quick response times.
Innovation Solution
A valve assembly with a handle, indicator, and marker that provides visual cues to indicate the rotational range and position, using contrasting colors and shapes to guide users on the correct direction of rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no indicator is provided on the valve handle, then the device complexity is reduced, but users may rotate the handle in the wrong direction causing damage and delayed operation
Solution Approach 1:
The patent applies color changes by using contrasting colors between the indicator and the handle, and between the marker and the valve body. The indicator is provided in a color that contrasts with the color of the handle, and the marker is provided in a color that contrasts with the color of the valve body, making the indicator and marker highly visible to guide users on the correct rotation direction.
Solution Approach 2:
The patent uses an indicator as an intermediary element that provides visual information about the handle's rotational position. The indicator extends around the handle axis and aligns with the marker at specific positions to indicate open and closed states, serving as a mediator between the mechanical valve components and the user's understanding of valve state.
2Productivity
If users hesitate to rotate the handle due to uncertainty about the correct direction, then the risk of damaging the valve is reduced, but the response time for valve operation increases
Solution Approach 1:
The patent applies preliminary action by providing the indicator and marker in advance to show users the correct rotation direction before they attempt to operate the valve. The indicator denotes the rotational range of the handle and aligns with the marker at open and closed positions, allowing users to quickly determine the appropriate direction to rotate the handle without hesitation.
Solution Approach 2:
The patent uses feedback by providing visual cues through the indicator and marker that give immediate information about the handle's current position and the correct rotation direction. As the handle rotates, the relative orientation of the indicator with the valve body represents the position of the valve within the rotational range, providing continuous feedback to guide user action.
3Ease of operation
If the indicator is made highly visible with contrasting colors and textured surface, then user recognition of handle rotation direction is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent applies local quality by providing contrasting colors and textured surfaces only on specific components (the indicator and marker) rather than the entire valve assembly. The indicator is provided in a color that contrasts with the handle, and the marker contrasts with the valve body, concentrating the visual enhancement where it is most needed for user recognition.
Data Source
AI summary
A valve assembly having a handle and a valve body. The valve assembly includes an indicator and a marker that denote the rotational range and position of the handle relative to the valve body. The indicator generally has a contrasting color compared to the handle to ensure visibility. The indicator can be an inlay embedded on the top side of the handle. The indicator is generally arc-shaped. The alignment of the marker and the indicator can allow users to determine an appropriate direction to rotate the handle that is within the rotational range of the handle.