Lockable Pressure Gauge Indicator for Consistent Readings
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Solution Overview
Problem
Pressure gauges often require manual resetting of the indicator needle each time they are used and can be inadvertently manipulated, leading to inconsistent readings and increased operator error, especially in emergency situations like firefighting.
Innovation Solution
A device comprising a housing attachable to a pressure gauge with manually pivotable pressure indicators that can be locked in set positions using a key, allowing for consistent indication of desired pressures and ranges, even under vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual resetting of the indicator needle is required each time the gauge is used, then the gauge can be simple in structure, but the operator workload increases and consistency of readings decreases
Solution Approach 1:
The desired pressure is pre-set on the pressure indicator before operation begins. The indicator is adjusted to the target pressure value and then locked in place, eliminating the need for manual resetting during each operation. This preliminary configuration reduces operator workload while maintaining gauge simplicity.
2Adaptability or versatility
If the indicator needle can be manually adjusted during operation, then adaptability to different pressure requirements is improved, but the risk of inadvertent manipulation and inconsistent readings increases
Solution Approach 1:
The pressure indicator is designed to be adjustable during setup or maintenance periods, allowing adaptation to different pressure requirements. However, during normal operation, the lock mechanism engages to prevent inadvertent manipulation, ensuring reading consistency. The system dynamically transitions between adjustable and fixed states based on operational phase.
Solution Approach 2:
The lock mechanism is designed to prevent inadvertent manipulation of the pressure indicator during operation. By providing this counteracting force against unintended adjustments, the system maintains reading consistency while still allowing deliberate adjustments when needed through the use of the adjustment tool.
3Reliability
If the pressure indicator is locked in a fixed position, then reading consistency is improved, but the ability to adjust for different hose configurations is reduced
Solution Approach 1:
The pressure indicator system dynamically transitions between locked and adjustable states. During normal operation, the indicator remains locked to ensure reading consistency. When hose configurations change or maintenance is needed, the lock can be disengaged using the adjustment tool, allowing the indicator to be repositioned to reflect new pressure requirements, then locked again for consistent operation.
4Reliability
If a lock mechanism is added to retain the pressure indicator, then inadvertent manipulation is prevented, but device complexity increases
Solution Approach 1:
The lock mechanism is designed to be self-actuating through the normal operation of the pressure indicator itself. As the pressure indicator is adjusted to the desired position, it automatically engages with the lock mechanism, which is spring-loaded or otherwise biased to engage. No separate locking action is required, and the system maintains reliability without adding significant complexity.
Data Source
AI summary
Disclosed is a device that includes a housing attachable to a pressure gauge, and a pressure indicator manually pivotable within the housing to a set position. The housing is configured to enclose and retain the pressure indicator in the set position.