Flat Mop Wringer Cam Drive for Adjustable Roller Compression
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Solution Overview
Problem
It is challenging to effectively remove excess liquid from a flat mop, especially one with a double-sided textile pad, leading to residual moisture that hinders efficient reuse.
Innovation Solution
A wringer mechanism featuring a drive roller and a driven roller, with a drive assembly that includes cam surfaces and gears, allowing for rotational and linear movement to efficiently extract liquid from the mop by adjusting the distance between the rollers and controlling the wringing action.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional wringer is used on a flat mop with double-sided pad, then the wringing action is insufficient, but the device complexity increases when adding linear movement capability
Solution Approach 1:
The drive roller is designed with both rotational movement (for wringing) and linear movement (for pressing the mop between rollers). The cam mechanism converts rotary motion from the handle into combined rotational and linear motion of the drive roller, dynamically adapting the wringing action to effectively squeeze liquid from the flat mop pad.
2Productivity
If the drive roller only rotates, then the device complexity is low, but the liquid extraction efficiency is insufficient
Solution Approach 1:
A cam mechanism serves as an intermediary between the handle (input) and the drive roller (output). The cam profile is specifically designed to convert the rotary motion of the handle into a combination of rotational and linear motion of the drive roller, enabling effective liquid extraction without requiring complex multi-component mechanisms.
3Adaptability or versatility
If the distance between drive roller and driven roller is fixed, then the device complexity is low, but the adaptability to different mop types is reduced
Solution Approach 1:
The distance between the drive roller and driven roller is made dynamically adjustable through an eccentric cam wheel mechanism. By rotating the eccentric cam wheel, the position of the drive roller relative to the driven roller can be adjusted, allowing the wringer to adapt to different mop types and pad thicknesses while maintaining a relatively simple overall structure.
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 wringer effectively removes liquid from the mop, ensuring it is dry for reuse by applying a controlled wringing force, allowing for efficient liquid extraction and collection.
Implementation Method 1
The first cam surface engages a first follower where the first follower is operatively connected to the drive roller such that linear movement of the first cam follower results in linear movement of the drive roller
Implementation Method 2
A first gear is operatively connected to the drive roller for rotating the drive roller
Implementation Method 3
The drive roller and driven roller squeeze the mop between them to extract liquid
Implementation Method 4
The rotational movement of the drive roller creates friction with the mop to remove liquid
Data Source
AI summary
A drive provides rotational movement and linear movement to an output. A first gear is operatively connected to the output, such as a roller. A drive assembly comprises a first cam surface, a second cam surface and a second gear. The first cam surface engages a first follower where the first follower is operatively connected to the output such that linear movement of the first cam follower results in linear movement of the output. The second cam surface engages a stationary follower. The second gear engages the first gear. The drive assembly rotates over a range of motion such that for a first portion of the range of motion the drive assembly causes the rotational and linear movement of the output and rotation of the drive assembly for a second portion of the range of motion causes only the rotational movement of the output.