Trip Hazard Gauge Spring-Telescoping Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for measuring the difference in elevation between two adjacent concrete slabs are time-consuming and require estimators to kneel at the site, making it inefficient for accurate and convenient data collection, especially for estimating trip hazards on sidewalks that need ADA-compliant chamfer cuts.
Innovation Solution
A trip hazard measurement gauge with a spring-biased inner tube and a bubble leveling instrument, allowing for vertical alignment and enabling estimators to measure elevation differences while standing, with optional GPS-equipped device for data recording and location tagging, facilitating efficient and accurate calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional measurement methods are used to measure elevation differences between concrete slabs, then measurement accuracy can be achieved, but the process is time-consuming and requires estimators to kneel at the measurement site
Solution Approach 1:
The measurement device incorporates a telescoping boom with adjustable length that can be dynamically extended and retracted. The boom telescopes outward when elevation differences exceed the base width, allowing the device to adapt to varying measurement conditions without requiring manual repositioning or kneeling, thereby maintaining measurement accuracy while reducing time loss
Solution Approach 2:
The device introduces a laser distance meter as an intermediary measurement tool between the estimator and the elevation difference. The laser distance meter automatically measures distances and calculates elevation differences, eliminating the need for manual kneeling measurements and reducing the time required while maintaining precision through automated calculation
2Measurement precision
If manual measurement and calculation methods are used, then detailed elevation data can be obtained, but the estimating process becomes lengthy and costly
Solution Approach 1:
The device incorporates a display unit that provides immediate visual feedback of measured elevation differences and calculated estimates. The system automatically processes measurements and presents results in real-time, eliminating lengthy manual calculation processes while maintaining detailed measurement accuracy, thereby significantly improving estimating process efficiency
Solution Approach 2:
The device replaces manual mechanical measurement and calculation methods with automated electronic measurement systems. The laser distance meter and integrated processor automatically perform measurements and calculations that previously required manual intervention, reducing both time and cost while maintaining measurement precision
3Loss of information
If GPS-equipped devices are integrated into the measurement system, then location-specific data collection is enhanced, but device complexity increases
Solution Approach 1:
The device merges the GPS-equipped data collection unit with the existing measurement device structure. By integrating the GPS receiver and data processing capabilities into the same housing as the measurement instruments, the system reduces overall device complexity while enhancing location-specific data collection through unified operation and shared power supply
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
Enables rapid, accurate measurement of elevation differences and location-specific data collection, reducing the time and cost estimation process by allowing estimators to stand during measurements and enhancing the creation of quote documents with geographic location data.
Implementation Method 1
The inner tube is spring biased in a downwardly direction, so that when the inner tube is positioned at its downward limit, the stationary foot and the movable foot are equiplanar
Implementation Method 2
the gauge is equipped with a bubble leveling instrument so that the estimator can ascertain when the gauge is vertical
Data Source
AI summary
A trip hazard measurement gauge has an outer tube with a stationary foot secured to a lower end thereof, and an inner tube slidable within the outer tube and extending through an upper end of the latter. The inner tube has a slidable foot secured to a lower end thereof and a ruler secured to an upper end thereof. The inner tube is spring biased in a downwardly direction. With the inner tube positioned at its downward limit, the stationary foot and the movable foot are equiplanar and the ruler is hidden inside the outer tube. An estimator measures a difference in elevation between two adjacent concrete slabs by placing the slidable foot on an adjoining edge of the uppermost slab and pushing down on the outer tube until the stationary foot contacts the lowermost slab. The ruler, extending upwardly from the outer tube, indicates the difference in elevation.