Floor washing machine
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Solution Overview
Problem
Existing floor washing machines have an ineffective cleaning mechanism due to the water outlet being positioned behind the scrubbing assembly, requiring additional force to operate due to their weight.
Innovation Solution
A floor washing machine with a rotatable water outlet pipe that can be adjusted to spray water in either direction, combined with a supporting wheel assembly to reduce user effort, and a motor-driven scrubbing roller for forward and reverse rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the water outlet is positioned behind the scrubbing assembly, then the structure is simplified, but the cleaning effectiveness deteriorates
Solution Approach 1:
The water outlet pipe is made rotatable relative to the handle assembly, allowing the user to dynamically adjust the water spray direction to match the scrubbing direction. This dynamic adjustment capability resolves the contradiction by enabling effective cleaning (water sprayed forward before scrubbing) while maintaining a relatively simple overall structure through a single rotational degree of freedom rather than complex multi-component systems.
2Reliability
If the machine is made heavy with substantial components, then the cleaning capability is improved, but the ease of operation deteriorates
Solution Approach 1:
A supporting wheel assembly is introduced to counterbalance the weight of the main machine body. The supporting wheel, connected via a support arm to the handle assembly, provides upward support force that reduces the downward force required by the user's hand. This allows the machine to maintain substantial cleaning capability through adequate weight while significantly improving ease of operation by offsetting the gravitational load.
3Adaptability or versatility
If the water outlet pipe is made rotatable to adjust spray direction, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The water outlet pipe is made rotatable relative to the handle assembly, allowing the user to dynamically adjust the water spray direction to match the scrubbing direction. This dynamic adjustment capability resolves the contradiction by enabling effective cleaning (water sprayed forward before scrubbing) while maintaining a relatively simple overall structure through a single rotational degree of freedom rather than complex multi-component systems.
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
Ensures effective water-assisted cleaning in both forward and rearward scrubbing directions while reducing the force required for operation by incorporating a supporting wheel assembly.
Implementation Method 1
The motor works under the control of the control unit, and the scrubbing roller is driven to rotate by the motor
Implementation Method 2
the water outlet pipe of the water supply assembly can be rotated in order to point the water outlet opening of the water outlet pipe to the forward-of-roller direction or the rearward-of-roller direction of the sweeping/scrubbing assembly
Data Source
AI summary
A floor washing machine includes a handle assembly; a control unit provided at the handle assembly; a power supply unit electrically connected to the control unit; a rod assembly connected to the handle assembly; a base assembly connected to a lower portion of the rod assembly; a sweeping/scrubbing assembly provided at the base assembly and having a motor controlled by the control unit and a scrubbing roller to be driven into forward or reverse rotation by the motor; and a water supply assembly having a water outlet pipe, wherein the water outlet pipe has a water outlet opening and can be rotated in order to point the water outlet opening to a forward-of-roller direction or a rearward-of-roller direction of the sweeping/scrubbing assembly.