Wet Cleaning Device Hand Guide Inclination Protection
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Solution Overview
Problem
Existing wet cleaning devices face operational reliability issues due to liquid being inadvertently sucked into the air intake opening when the hand guide part is inclined, potentially damaging the suction drive and impairing its function.
Innovation Solution
A detection device connected to the control unit monitors the angle of inclination of the hand guide part, activating a protective function that can switch off the suction and/or tool drives, and optionally emit a warning signal, to prevent liquid from being sucked in when the device is tilted beyond a certain angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the hand guide part is made pivotable in all directions to improve maneuverability, then ease of operation is improved, but liquid may reach the air intake opening when inclined, causing damage to the suction drive
Solution Approach 1:
The detection device continuously monitors the angle of inclination of the hand guide part before liquid can reach the air intake opening. When a critical angle is detected, the control device preemptively activates the protective function to close the air intake opening or shut down the suction drive, preventing liquid damage before it occurs
Solution Approach 2:
A detection device and control device are introduced as intermediary components between the pivotable hand guide part and the suction drive. These intermediaries monitor the inclination angle and mediate the connection by activating protective measures when necessary, allowing the hand guide part to remain pivotable while protecting the suction drive from liquid damage
2Productivity
If the air intake opening remains open to ensure proper suction function, then productivity is improved, but liquid can be sucked in when the device is tilted, damaging the suction drive
Solution Approach 1:
The air intake opening's state is made dynamic rather than static. The protective function can close the air intake opening or shut down the suction drive based on real-time inclination angle detection, allowing the system to adapt between open (for productivity) and closed/shutdown (for protection) states as conditions require
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 enhances operational reliability by preventing damage to the suction drive and ensuring efficient operation of the wet cleaning device, even when the hand guide part is inclined, thereby maintaining the device's functionality and preventing liquid from entering the air intake opening.
Implementation Method 1
The suction drive (9) sucks air (22) via a suction line (17) out of the receiving container (7) through an air intake opening (23), so that the receiving container (7) is subjected to negative pressure for sucking in the liquid
Implementation Method 2
The detection device preferably has at least one sensor which is set up to detect the angle of inclination
Data Source
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AI summary
1. Wet cleaning device for wet cleaning a floor surface 2.1 Such a wet cleaning device comprising a base part which is supported on the floor surface in an operating state, at least one floor cultivation tool which is arranged on the base part and which rests at least partially on the floor surface in the operating state, at least one tool drive by means of which the at least one floor cultivation tool is driven and moved on the floor surface in the operating state, a hand guide part which is provided for manual directional control of the base part on the floor surface, a joint arrangement which has at least two joint axes and by means of which the hand guide part is articulated and torque-transmitting to the base part, a receiving container,The invention includes a suction drive, which is designed to receive liquid drawn from the floor surface and is pivotably arranged on the hand guide together with the hand guide, a suction drive by means of which, in the operating state, air can be drawn from the receiving container via an air intake opening so that the receiving container is pressurized for drawing in the liquid, and a control device which is configured at least for controlling the function of the suction drive and/or the tool drive. 2.2 According to the invention, a detection device connected to the control device is provided, which is configured to detect an angle of inclination of the hand guide, wherein the control device is configured such thatthat, depending on the detected tilt angle, a protective function to prevent liquid from being drawn into the collection container through the air intake opening due to tilting can be controlled. 2.3 Use in a wet cleaning device,