Electric Cleaning Device Linear Motion Mechanism
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Solution Overview
Problem
Existing electric cleaning devices, such as facial cleaners and toothbrushes, face issues with uneven cleaning force due to varying linear velocities at different positions of the rotating brush head, leading to inconsistent cleaning degrees.
Innovation Solution
An electric cleaning device with a driving assembly that includes a motor, a guiding cylinder, a telescopic sleeve, a toggle piece, and a connector, allowing the cleaning head to move back and forth in a straight line, ensuring consistent linear speed across all positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a rotating brush head is used to clean the face, then the cleaning device can cover a larger area, but the linear velocities at different positions of the brush head are different, resulting in uneven cleaning force
Solution Approach 1:
Instead of rotating the brush head to achieve cleaning coverage, the patent inverts the approach by making the brush head move back and forth in a straight line. The driving assembly converts rotational motion from the motor into linear reciprocating motion through a telescopic sleeve and toggle mechanism, ensuring uniform linear velocity across all brush positions while maintaining large cleaning area coverage.
2Force
If the brush head moves back and forth in a straight line, then the linear velocity at each position is consistent, but the cleaning range may be reduced
Solution Approach 1:
The patent employs dynamic motion characteristics by making the brush head reciprocate back and forth along a straight line path. The driving assembly enables the brush to alternate between forward and backward movements, covering a large cleaning area through repeated passes while maintaining consistent linear velocity during each stroke, thus achieving both uniform cleaning force and extensive coverage.
3Device complexity
If a motor is used to drive the brush head to rotate, then the cleaning device structure is simple, but the linear velocities at different positions are different, causing inconsistent cleaning degrees
Solution Approach 1:
The patent introduces a telescopic sleeve as an intermediary component between the motor and the brush head. This intermediary mechanism converts the rotational motion from the motor into linear reciprocating motion of the brush head, thereby achieving consistent linear velocity across all brush positions while maintaining reasonable structural complexity through the addition of this motion-conversion component.
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
This solution ensures consistent cleaning force across the entire cleaning area, increasing the cleaning range and efficiency while avoiding the issue of poor cleaning.
Implementation Method 1
The driving assembly includes a base, a guiding cylinder with a port end, a motor, a driving shaft
Implementation Method 2
A left spiral groove and a right spiral groove are provided on the outer wall of the telescopic sleeve... The toggle piece is disposed at the port end of the guiding cylinder and extends into the left spiral groove or the right spiral groove
Data Source
AI summary
An electric cleaning device includes a handle assembly, a cleaning head, and a driving assembly; the handle assembly is provided with a mounting chamber for mounting the driving assembly; the driving assembly includes a base, a guiding cylinder, a motor, a driving shaft, a telescopic sleeve, a toggle piece, and a connector; the motor and the guiding cylinder are respectively fixed on both ends of the base; the driving shaft is connected with the motor and extends into the guiding cylinder; the telescopic sleeve is axially slidably sheathed on the driving shaft, and the telescopic sleeve extends out of the guiding sleeve; a left and right spiral groove are provided on the telescopic sleeve; two ends of the left and right spiral groove are connected to form a turning portion; the toggle piece is disposed at the guiding cylinder and extends into the left or right spiral groove.