Nail Grinding Machine Gyroscope Control for Safer Operation

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Solution Overview

Problem

Current nail grinding machines require frequent button presses for operation adjustments, leading to low efficiency, battery waste, and safety risks due to accidental operation continuation.

Innovation Solution

A nail grinding machine equipped with an attitude detection device, including a gyroscope module and data processing module, senses the handle's posture and angular velocity to control the drive motor's operation, allowing for seamless switching without manual button presses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If button-based control is used for operation adjustments, then the device structure remains simple, but work efficiency decreases and safety risks increase due to frequent manual presses

Engineering Contradiction:
Improveoperation convenienceVSAvoidwork efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent replaces the mechanical button-pressing system with an attitude detection system using a gyroscope module. The gyroscope detects the handle's spatial orientation and angular velocity, automatically triggering motor operations without requiring manual button presses. This substitution of mechanical control with sensor-based detection resolves the contradiction by improving both ease of operation and work efficiency simultaneously

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Device complexity

If manual button pressing is required for starting/pausing, then the control system remains simple, but battery life decreases due to accidental continuous operation

Engineering Contradiction:
Improvecontrol system complexityVSAvoidbattery consumption
Core Design Contradiction:
Device complexityVSUse of energy by moving object

Solution Approach 1:

The patent replaces manual button-based control with automatic attitude-based detection. The gyroscope module continuously monitors the handle's orientation and angular velocity, automatically pausing the motor when the device is placed down (detected through stationary attitude at specific angles). This eliminates accidental continuous operation and reduces battery consumption without significantly increasing control system complexity

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Device complexity

If button-based control is used, then the product structure remains simple, but safety risks increase due to accidental operation continuation

Engineering Contradiction:
Improveproduct structureVSAvoidoperational safety
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent replaces manual button-based control with automatic attitude detection using a gyroscope module. The system automatically detects when the device is placed down by monitoring for stationary attitudes at specific angles, and automatically pauses motor operation. This eliminates the safety risk of accidental continuous operation while maintaining relatively simple product structure through integrated sensor-based control

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

Enhances user convenience and safety by automatically adjusting the motor's state based on handle posture, reducing energy consumption and preventing accidents.

Implementation Method 1

The attitude detection device includes a gyroscope module and a data processing module, and the gyroscope module is coupled to the data processing module; the gyroscope module is configured to detect an included angle α between the handle and a vertical axis, and the data processing module is configured to calculate an angular velocity w of the handle based on a change in the included angle α and a corresponding time

Methodology Applied
Scientific EffectGyroscope: Gyroscope

Data Source

PatentUS20250228349A1Nail grinding machine
Publication Date: 2025.07.17 GUANGZHOU DACHUANG NAIL PRODUCTS CO LTD
  • US20250228349A1 patent drawing
  • US20250228349A1 patent drawing
  • US20250228349A1 patent drawing

AI summary

A nail grinding machine includes a handle, a drive motor, a spindle, an attitude detection device and a control device. The handle is provided with an accommodating chamber and an output opening communicating with the accommodating chamber. The drive motor is arranged within the accommodating chamber. The spindle is arranged at an output end of the drive motor and connected to the drive motor through a coupling, and an end of the spindle is positioned opposite to the output opening and is configured for connecting a grinding head. The attitude detection device is arranged within the handle, and the attitude detection device is configured to detect an attitude of the handle and output an attitude signal. The control device receives the attitude signal and controls the drive motor.