Lifting Device for Cleaning Assembly to Prevent Re-Pollution
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Solution Overview
Problem
Conventional roller brush assemblies in cleaning robots cannot be adjusted to avoid re-polluting cleaned areas during round trips, as they are fixed and cannot lift off the ground.
Innovation Solution
A lifting device for cleaning assemblies featuring a guiding base and a lifting mechanism driven by a driving member, allowing the cleaning assembly to be lifted or lowered relative to the housing, with a sliding groove system enabling vertical movement and a transmission mechanism for precise control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the cleaning assembly is fixed to the housing, then the structure is simple, but the cleaning assembly cannot be lifted to avoid re-polluting cleaned areas
Solution Approach 1:
The cleaning assembly is transformed from a fixed state to a movable state through the lifting mechanism. The lifting block can slide vertically along the guiding base, enabling the cleaning assembly to be dynamically adjusted between contact and non-contact positions with the ground, thus resolving the contradiction between adaptability and structural simplicity.
Solution Approach 2:
The lifting device is divided into independent functional modules: the guiding base providing support, the lifting mechanism enabling vertical movement, and the driving member providing actuation. This segmentation allows each component to perform its specific function with simple structure, collectively achieving the lifting capability without excessive complexity.
2Object-affected harmful factors
If the cleaning assembly remains in contact with the ground during round trip, then continuous cleaning is maintained, but secondary pollution occurs on already cleaned regions
Solution Approach 1:
The cleaning assembly operates in periodic cycles: contacting the ground for cleaning, lifting off to avoid re-pollution, and returning to contact position. The lifting device enables this periodic on-off contact pattern, allowing the system to alternately perform cleaning and avoidance functions based on operational phase.
Solution Approach 2:
The control system receives feedback about the cleaning apparatus's position and operational state, then automatically actuates the lifting mechanism to lift the cleaning assembly when approaching already cleaned areas. This feedback-based control prevents secondary pollution while maintaining ease of operation through automated decision-making.
3Adaptability or versatility
If a lifting mechanism is added to enable cleaning assembly adjustment, then adaptability improves, but device complexity increases
Solution Approach 1:
The lifting block serves as an intermediary component between the guiding base and the cleaning assembly. It translates the driving force from the driving member into vertical movement of the cleaning assembly, while the oblique groove acts as an intermediary mechanism to convert horizontal driving motion into vertical lifting motion, achieving adaptability with minimal complexity.
Solution Approach 2:
The oblique groove mechanism substitutes for complex multi-stage mechanical linkages. By using a simple inclined surface geometry, the system converts horizontal displacement of the driving member directly into vertical movement of the lifting block, achieving position adjustment capability without requiring complex gears, cams, or hydraulic 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
Enables the cleaning assembly to be lifted off the ground, preventing re-pollution and allowing self-adaptive floating over obstacles and uneven surfaces, while maintaining a simple structure.
Implementation Method 1
a transmission mechanism comprising a screw rod, one end of the screw rod is connected to the driving member, the other end of the screw rod is threadedly connected to the guiding block
Implementation Method 2
One of the lifting block and the guiding block is provided with a groove, and the other is slidably arranged in the groove... the groove is obliquely arranged on the guiding block... allowing the lifting block to move up or down in the groove
Data Source
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AI summary
The present disclosure provides a lifting device for cleaning assembly and a cleaning apparatus. The lifting device includes a guiding base and a lifting assembly. The guiding base is arranged on an external housing. The lifting assembly includes a lifting mechanism connected with the cleaning assembly and slidably coupled to the guiding base, and a driving member arranged on the guiding base and configured to drive the lifting mechanism to move with respect to the guiding base.