Rolling Measuring Instrument With Magnetic Arm Retention
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Solution Overview
Problem
Traditional rolling measuring instruments suffer from structural defects and are inconvenient to use.
Innovation Solution
A rolling measuring instrument with a housing, display screen, clamping component, and roller arm, featuring a pivot seat, meshing teeth, and magnets to prevent the roller arm from falling out, along with a rotatable display screen and adjustable clamping mechanism for enhanced usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the roller arm is made detachable for easy storage and transport, then the ease of operation is improved, but the reliability deteriorates due to frequent falling out affecting product lifespan
Solution Approach 1:
The patent replaces the traditional mechanical fastening system (screws, clips) with a magnetic field-based retention system. Magnets embedded in the housing automatically hold the roller arm in place through magnetic attraction, eliminating the need for complex mechanical fasteners while preventing frequent detachment. This substitution maintains reliability by providing consistent retention force while preserving ease of operation as the roller arm can be easily removed when needed.
2Reliability
If the display screen is fixed in position for stable structure, then the reliability is improved, but the ease of operation deteriorates due to difficulty in observing data at various angles
Solution Approach 1:
The patent transforms the static, fixed display screen into a dynamic, rotatable component. The display screen is mounted on a rotating mechanism that allows it to be adjusted to different angles while maintaining stable connection through the pivot seat and meshing teeth. This dynamic design enables operators to observe data from various angles without compromising the structural reliability of the housing.
3Ease of operation
If the clamping mechanism is simplified for easier operation, then the ease of operation is improved, but the reliability deteriorates due to insufficient fixation security
Solution Approach 1:
The patent introduces a linkage plate as an intermediary component between the pressing plate and the clamping pillar. This linkage mechanism translates the pressing action into effective clamping force, ensuring secure fixation of the roller arm. The linkage plate acts as a mechanical mediator that amplifies and directs the clamping force, providing reliable fixation while maintaining simple operation through the pressing plate interface.
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 prevents frequent falling of the roller arm, allows easy data observation at various angles, and facilitates secure fixation, enhancing the overall convenience and adaptability of the instrument.
Implementation Method 1
a magnet two is arranged inside the roller arm... a magnet one that can attract the magnet two is arranged inside the cover plate
Data Source
AI summary
A rolling measuring instrument includes a main body of the measuring instrument, which further comprises a housing, a display screen, a clamping component, and a roller arm. The housing includes a cover plate and a bottom shell that are mutually compatible. One side of the bottom shell is equipped with a pivot seat. The display screen engages with the pivot seat and can be flipped relative to the housing. One end of the roller arm is rotatably connected to the bottom shell, and the other end is rotatably connected to a measuring wheel. The housing is connected to a connecting member through a pin shaft, and the clamping component is assembled to the connecting member. The overall structure is optimized and the use is more convenient.