Upright Deep Cleaner Nozzle and Brushroll for Easy Maintenance
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Solution Overview
Problem
Existing upright deep cleaners face challenges in easy maintenance, tool-free brushroll replacement, reliable surface contact, and efficient fluid recovery, particularly on irregular surfaces, and lack a convenient method for replacing electrical components without disassembly.
Innovation Solution
The design includes a rotatable brushroll with a twist-and-lock mechanism for easy removal, a suction nozzle with coil springs for consistent surface contact, and a modular power cord system that allows for easy replacement without disassembling the housing, along with a recovery tank with a pivotally mounted lid for easy access and a vending machine for single-use cleaning formulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the brushroll is permanently fixed in the deep cleaner, then the structural integrity and stability are improved, but the ease of maintenance and brushroll replacement deteriorate
Solution Approach 1:
The brushroll assembly is segmented into separable components including the brushroll, support legs, and end cap. The end cap can be twisted and locked into place or removed without tools, allowing the brushroll to be easily separated from the support legs for maintenance while maintaining structural integrity during operation.
Solution Approach 2:
The end cap connection mechanism transitions from a static permanent fixation to a dynamic twist-and-lock system. This allows the connection state to change between securely locked during operation and easily removable for maintenance, resolving the contradiction between structural integrity and ease of repair.
2Reliability
If the power cord is permanently integrated into the housing, then the electrical connection reliability is improved, but the ease of replacement without disassembly deteriorates
Solution Approach 1:
The power cord system is segmented into a removable power cord and a housing-mounted receptacle. This segmentation allows the power cord to be easily replaced without disassembling the housing while maintaining reliable electrical connection through the receptacle interface.
Solution Approach 2:
The power cord is extracted from the permanent integration with the housing and made into a removable component. The housing contains a receptacle that receives and secures the power cord, allowing easy replacement while maintaining reliable electrical connection during use.
3Stability of the object's composition
If the suction nozzle is rigidly fixed to the base, then the structural stability is improved, but the adaptability to irregular surfaces deteriorates
Solution Approach 1:
The suction nozzle connection transitions from rigid fixed to dynamically adjustable through coil springs. The springs allow the nozzle to move vertically to adapt to irregular surfaces while maintaining stable structural connection through the base mounting.
Solution Approach 2:
The position and contact force of the suction nozzle are made variable through coil springs. The spring mechanism allows the nozzle to adjust its vertical position and applied force dynamically, adapting to different surface irregularities while maintaining stable structural connection.
4Reliability
If the lid is permanently attached to the recovery tank, then the structural integrity is improved, but the ease of access for servicing deteriorates
Solution Approach 1:
The lid assembly is segmented from the recovery tank body, allowing the lid to be easily removed for access to the recovery chamber. The segmentation maintains structural integrity when assembled while enabling easy access for servicing and emptying.
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 solution enhances maintenance efficiency, ensures consistent cleaning performance on irregular surfaces, simplifies electrical component replacement, and provides a convenient rental option with customizable cleaning solutions.
Implementation Method 1
a suction nozzle with coil springs for consistent surface contact
Data Source
AI summary
A surface cleaning apparatus (10) comprises a base assembly (12), an upright handle assembly (14) pivotally mounted to the base assembly (12), a fluid distribution system including a supply of cleaning fluid, and a fluid recovery system for drawing dirty cleaning fluid from the surface to be cleaned. The base assembly (12) comprises a fluid supply tank (22) mounted on a base platform (20), and a recovery tank (24) and lid (70) mounted on the supply tank (22). The nozzle (146) assembly is split into three separable sections, and the upper handle (300) is foldable to a storage position. The base assembly (12) further comprises a pivotal brush carriage (210) assembly. A method for renting extraction cleaning machines (10) utilizes a vending machine (600) that dispenses cleaning formulations packaged in single use packages (602).