Vacuum squeegee accessory
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Solution Overview
Problem
Conventional squeegee accessories for wet/dry vacuum cleaners concentrate suction force at the center, limiting the cleaning area to only what is near the intake orifice and requiring directional use, which reduces efficiency and increases cleaning time.
Innovation Solution
A squeegee accessory with a housing and squeegee assembly that includes a bracket, squeegee blades, and an insert with airflow paths, allowing for uniform suction distribution across a wider area and easy attachment/detachment from the vacuum hose, enhancing debris collection and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If suction force is concentrated at the center near the intake orifice, then suction effectiveness is improved, but cleaning area is limited to only the central region
Solution Approach 1:
The squeegee blade is divided into multiple segments (first squeegee blade, second squeegee blade, third squeegee blade) that are positioned at different locations within the housing. Each segment independently channels debris toward the intake orifice, allowing the suction force to be effectively distributed across a wider cleaning area rather than concentrated at a single central point.
2Device complexity
If a single squeegee blade is used, then the structure is simple, but the accessory can only function in a single direction
Solution Approach 1:
The squeegee assembly features an asymmetric configuration with multiple blades oriented at different angles and positions. The first, second, and third squeegee blades are arranged to handle debris from different directions, allowing the accessory to effectively clean surfaces approached from various angles rather than being limited to a single directional use.
3Area of stationary object
If the squeegee blade is wide to clean larger area, then cleaning coverage is improved, but suction force at the intake orifice is reduced
Solution Approach 1:
The housing incorporates internal channels and surfaces that are specifically shaped to funnel and concentrate debris flow toward the intake orifice. This local optimization ensures that while the squeegee blade contacts a wide area, the debris is efficiently channeled to the region of highest suction force, maintaining effective suction despite the increased blade width.
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 accessory effectively cleans a broader surface area, reducing cleaning time and energy consumption by redirecting airflow and maximizing debris collection, while being easy to assemble and combine with other cleaning tools.
Implementation Method 1
An electric vacuum cleaner generally includes a suction generating apparatus, such as a suction fan, which communicates with an intake orifice of an accessory attached to the vacuum hose. At the intake orifice, the force of suction is greatest
Data Source
AI summary
A squeegee accessory for a wet/dry vacuum may include a housing and a squeegee assembly removably attached to a front end of the housing. The housing may include a front end including a fluid inlet, a back end including a fluid outlet, and a fluid flow path connecting the inlet and the outlet. The squeegee assembly may include a bracket, a squeegee removably disposed between first and second plates of the bracket, and an insert removably disposed between first and second blades of the squeegee. The insert may have an elongated body and a rib disposed on the elongated body, the rib touching the inner surface of the squeegee to define a barrier of an airflow path formed between the insert and the squeegee.