Automatically moving floor processing device
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Solution Overview
Problem
Existing floor processing devices face difficulties in overcoming obstacles such as door thresholds and carpet edges due to the parallel orientation of their drive axles and contact elements, which can cause the devices to become stuck or diverted.
Innovation Solution
The contact surface or connecting line of the contact elements is oriented nonparallel to the drive axle, with a distance from the drive element's contact surface less than the element's diameter, allowing the device to incline and overcome obstacles by having only one drive element initially contact the obstacle, ensuring continued force exertion from the opposing end area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the contact elements are oriented parallel to the drive axle, then the device structure is simple and stable, but the device cannot effectively overcome obstacles and may become stuck or diverted
Solution Approach 1:
The contact elements are oriented at an angle relative to the drive axle, creating an asymmetric configuration. This asymmetry allows the device to approach obstacles at an inclined angle, enabling one drive element to contact the obstacle first while the other continues to exert force on the surface, preventing the device from becoming stuck or diverted during obstacle traversal
2Reliability
If both drive elements contact the obstacle simultaneously, then the device structure is simple, but the device cannot maintain optimal force exertion to overcome the obstacle
Solution Approach 1:
The angled orientation of contact elements causes one drive element to contact the obstacle before the other, creating a sequential contact pattern. This preliminary action ensures that when the first drive element encounters the obstacle, the second drive element is still in optimal contact with the surface and can continue to exert driving force, enabling successful obstacle traversal
Data Source
AI summary
An automatically moving floor processing device has a housing, at least one drive element that is driven by an electric motor and can rotate around a drive axle for movement purposes, and at least one contact element that moves ahead of the drive element in the direction of movement, which extends from a housing underside of the housing in the direction of a surface to be processed. In order to make it easier to overcome obstacles, a contact surface of the contact element pointing in the direction of movement and/or a connecting line that connects the contact surfaces of two contact elements be oriented nonparallel to the drive axle of the drive element, and be spaced apart from a contact surface of the drive element by a distance relative to the direction of movement that is less than one diameter of the drive element.