Dust collection guide structure, dust collection mechanism and sweeping robot
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Solution Overview
Problem
Sweeping robots face issues with dust collection blockage due to hair winding around the rolling main brush and side brushes, leading to reduced suction efficiency and shortened service life, along with challenges in sweeping corners and edges due to bristle length and design limitations.
Innovation Solution
A dust collection guide structure with grooves on the bottom shell surface that guide dust into an air duct suction opening, replacing the rolling main brush and incorporating independently arranged sweeping brushes that move reciprocally to enhance dust collection efficiency and widen the sweeping range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rolling main brush is arranged in the air suction opening for cleaning, then the sweeping function is achieved, but the air suction opening is blocked due to hair winding after long-term use
Solution Approach 1:
The patent removes the rolling main brush from the air suction opening and extracts only the necessary dust collection function. The air suction opening is positioned at the bottom center without any brush, eliminating the hair winding problem while maintaining dust collection capability through the dust collection fan and dust collection box system.
Solution Approach 2:
The patent divides the dust collection function into separate components: a dust collection fan for creating suction, a dust collection box for storing dust, and an air suction opening for dust intake. This segmentation allows each component to perform its specific function without interference from rolling brushes.
2Area of moving object
If three-blade type 360-degree rotating side brushes are arranged on the periphery, then the sweeping range is enlarged, but the driving wheels are pressed and slip due to bristle length limitations
Solution Approach 1:
The patent removes the traditional three-blade type 360-degree rotating side brushes from the periphery. Instead, it uses simple sweeping brushes with bristles that extend to the ground level, eliminating the pressing and slipping problems while maintaining effective sweeping coverage through the grooves that guide dust to the air suction opening.
3Ease of operation
If rolling main brush and side brushes are driven by independent motors, then the sweeping function is enhanced, but the cost increases
Solution Approach 1:
The patent merges the dust collection function with the dust collection fan, eliminating the need for separate motors for main brush and side brushes. The dust collection fan creates airflow that draws dust into the dust collection box, while the grooves and sweeping brushes work passively to guide dust toward the suction opening, significantly reducing motor configuration complexity.
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 solution effectively prevents dust collection blockages, improves suction efficiency, and enhances sweeping and cleaning effects on corners and edges, reducing costs by eliminating the need for separate main and side brushes.
Implementation Method 1
Under the action of the dust collection fan, dust raised by the main brush 108 is sucked into the dust collection box through the air suction opening 107
Implementation Method 2
at least one groove formed in the surface of the bottom shell, and each of the at least one groove is communicated with the air duct suction opening to form a dust guide air duct for guiding dust into the air duct suction opening
Data Source
AI summary
A dust collection guide structure (10) arranged at the bottom (11) of a shell of a dust collection mechanism comprises an air duct suction opening (12) formed in the bottom (11) of the shell and at least one groove (13) formed in the surface of the bottom (11) of the shell. One end of each of the at least one groove (13) communicates with the air duct suction opening (12) to form a dust guide air duct for guiding dust into the air duct suction opening (12), and the other end is in smooth transition connection with the edge of the bottom (11) of the shell.