Vacuum Accessory with Interchangeable Blades for Narrow-Space Cleaning
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Solution Overview
Problem
Vacuum cleaners used in vehicles are limited by their small suction surface area and suction force, making it difficult to effectively clean dirt and pet hair from vehicle interiors, especially in narrow spaces.
Innovation Solution
A vacuum accessory with a head and fitting interface that includes a blade with a flat body, designed to be removably coupled to the head, featuring a fluid flow path and a rubber attachment or bristles to attract and remove hair and debris from surfaces, allowing for enhanced cleaning in hard-to-reach areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a narrow accessory with small suction surface is used to reach narrow spaces, then accessibility to narrow areas is improved, but cleaning effectiveness on carpeting is worsened
Solution Approach 1:
The vacuum system is divided into a main vacuum unit and a separate removable accessory head. The accessory head can be segmented into different components including the head body, fitting, and interchangeable blades. This segmentation allows the user to select different blade types (e.g., flat blade, curved blade, blade with extensions) depending on the specific cleaning task, thereby maintaining accessibility to narrow spaces while improving cleaning effectiveness on various surfaces including carpeting.
Solution Approach 2:
The accessory head is designed with universal compatibility through a standardized fitting interface that can accommodate multiple blade types. The head body with its cavity and fluid flow path design allows it to function effectively with different blade configurations. This multi-functionality enables the same accessory head to address both narrow space accessibility and effective carpet cleaning by simply changing the blade attachment.
2Volume of moving object
If a small vacuum motor is used to fit in vehicle compartments, then portability is improved, but suction force is worsened
Solution Approach 1:
The accessory head is designed with optimized local geometry including a specifically shaped head body that encloses a cavity and defines a fluid flow path. The blade designs incorporate specific geometric features such as flat bodies, curved surfaces, and extended portions that are locally optimized to enhance suction force and cleaning effectiveness. These local quality improvements compensate for the limitations of the smaller vacuum motor by creating more efficient airflow patterns and increasing mechanical cleaning action at the contact point.
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 attracts and removes hair, dust, and debris from surfaces, including narrow spaces, by providing a larger effective suction area and improved cleaning capabilities compared to standard vehicle vacuum cleaners.
Implementation Method 1
a suction fan, which communicates with an intake orifice to apply suction force to a target area
Data Source
AI summary
A vacuum accessory may include a head including a head body defining an inlet and a fitting interface, the head body extending from a fitting interface to a base and enclosing a cavity. A fitting includes a fitting body symmetrically disposed about a longitudinal axis of the fitting. The fitting body defines a fitting inlet, an outlet, and a flow path connecting the fitting inlet and the outlet. The fitting is connected to the head at the fitting interface and a fluid flow path fluidly connects the inlet and the outlet. A blade is removably coupled to the head and at least partially disposed within the cavity of the head. The blade includes a flat blade body that is coplanar with a reference plane dividing the fitting body and containing the longitudinal axis of the fitting.