Skirt Brush Mechanism Mounting via Swing Arm Bracket
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Solution Overview
Problem
Existing skirt brush mechanisms in car washing machines face issues with bolt loosening due to frequent use and require large, costly column brackets, leading to high installation costs and inefficiencies.
Innovation Solution
A novel skirt brush mechanism featuring a swing arm connected to a fixed connection bracket, which is suspended on the car washing machine, using a reduction motor for rotation and an oblique fixed arm with a stretching actuator to drive swinging motion, eliminating the need for expansion bolts and large column brackets, and incorporating a positioning block and rolling bearing for compactness and reduced maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If expansion bolts are used to fix the bracket to the cement floor, then the skirt brush mechanism can be securely mounted, but the bolts are prone to loosening over time due to frequent cylinder action
Solution Approach 1:
The patent removes the expansion bolts and cement floor connection from the system, extracting the problematic mounting method. The bracket is repositioned to be fixed to the car washing machine body instead, eliminating the components prone to loosening while maintaining secure mounting through the machine's own structure.
2Reliability
If a large-sized column bracket is used to support the skirt brush, then the structure is stable and reliable, but it consumes a lot of materials and labor, resulting in high cost
Solution Approach 1:
The bracket structure is segmented into functional components: a vertical bracket for mounting the skirt brush and a horizontal bracket for mounting the cylinder. This segmentation allows each component to be optimized for its specific function, reducing overall material requirements while maintaining stability. The brackets can be manufactured separately and assembled, reducing labor costs.
Solution Approach 2:
The patent employs thin-walled but structurally optimized bracket designs that provide sufficient strength and stability without requiring thick, material-intensive construction. The brackets use efficient cross-sectional geometries and support arrangements to achieve high strength-to-weight ratios, reducing material consumption and manufacturing cost.
3Ease of operation
If a vertical seat bearing is used to connect the swing arm, then the arm can rotate smoothly, but it produces an open structure that affects aesthetics
Solution Approach 1:
The bearing is nested within the swing arm assembly in a concealed manner. The bearing housing is integrated into the arm structure or positioned within the mechanical assembly, making it invisible from the exterior. This maintains the smooth rotation function while achieving a clean, closed aesthetic appearance.
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 design prevents bolt loosening, reduces installation time and cost, prolongs actuator service life, and enhances the structure's aesthetics and durability, while allowing for efficient and cost-effective operation.
Implementation Method 1
the fixed connection bracket is rotatably connected to the swing arm through a rotating shaft and a rolling bearing
Data Source
AI summary
The present disclosure relates to a skirt brush mechanism with a novel structure. The skirt brush mechanism includes: a skirt brush, vertically arranged for brushing side surfaces of a vehicle; a swing arm with one end connected to a top of the skirt brush and the other end connected to a fixed connection bracket, and capable of rotating horizontally on the fixed connection bracket; a reduction motor, arranged on the swing arm and in driving connection with the top of the skirt brush to drive the skirt brush to rotate for brushing. The present disclosure can simplify conventional mounting and is not affected by part quality problems of cement floor sites.