Method for adjusting a position of suction lips of a floor cleaning machine and floor cleaning machine
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Solution Overview
Problem
Existing floor cleaning machines face challenges in maintaining an optimal angle of incidence for suction lips relative to the floor, which affects vacuuming efficiency due to varying floor structures and conditions, and lack automatic adjustment capabilities.
Innovation Solution
A method and system that detect negative pressure using pressure sensors and adjust the suction flow via the fan device to maintain a set angle of incidence for suction lips, ensuring optimal vacuuming results by regulating the fan power and incorporating a spring device for stable contact with the floor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the suction lips are fixed at a specific angle to the floor, then the structure is simple, but the vacuuming efficiency deteriorates when floor structure conditions change
Solution Approach 1:
The suction beam is made dynamically adjustable through a tilt mechanism that allows the suction lips to change their angle of incidence relative to the floor. The system transitions from a fixed rigid structure to a dynamic one where the angle can be automatically adjusted based on detected negative pressure conditions, enabling adaptation to different floor structures without manual intervention.
Solution Approach 2:
A feedback control system is implemented where negative pressure sensors detect the suction conditions and send signals to a control device. The control device then adjusts the tilt angle of the suction beam based on this feedback, creating a closed-loop system that automatically maintains optimal vacuuming performance across varying floor conditions.
2Productivity
If manual adjustment of suction lips is used, then the device complexity is low, but productivity deteriorates due to frequent manual interventions
Solution Approach 1:
The system employs negative pressure sensors that continuously monitor suction conditions and provide feedback to an automated control device. This feedback loop enables the system to automatically adjust the suction beam tilt angle in response to changing floor conditions, eliminating the need for manual intervention and maintaining high productivity continuously.
Solution Approach 2:
The floor cleaning machine performs self-adjustment of the suction lip angle through the automated control system. The machine monitors its own suction performance and automatically corrects suboptimal conditions by adjusting the tilt angle, enabling it to service itself without external human intervention.
3Reliability
If the fan power is increased to maintain negative pressure, then the vacuuming performance is improved, but energy consumption increases
Solution Approach 1:
Instead of changing fan power, the system changes the geometric parameter of the suction beam tilt angle to optimize performance. By adjusting the angle of incidence of the suction lips relative to the floor, the system maintains effective negative pressure and vacuuming consistency without increasing energy consumption, as the adjustment is mechanical rather than pneumatic.
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
Achieves consistent and optimized vacuuming results across different floor conditions automatically, maintaining an optimal angle of incidence between 35° and 70°, enhancing cleaning efficiency and manageability without user intervention.
Implementation Method 1
a fan device generates a suction flow which subjects a space between the first suction lip and the second suction lip to a negative pressure
Data Source
AI summary
A method for adjusting a position of suction lips of a floor cleaning machine relative to a floor to be cleaned is proposed, wherein a first suction lip and at least one second suction lip located at a distance therefrom, which are arranged on a suction beam, contact the floor, a fan device generates a suction flow which subjects a space between the first suction lip and the second suction lip to a negative pressure, a negative pressure is detected, and the suction flow is adjusted such that the negative pressure lies at a set value or in a set value range, so that an angle of incidence of the first suction lip and the second suction lip on the floor lies at a set value or in a set value range.