Surface Cleaning Nozzle Blade Assembly for Uneven Surface Contact
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Solution Overview
Problem
Conventional surface cleaning nozzles lack effective mechanisms to maintain consistent contact with uneven surfaces and adjust to different surface types, leading to inefficient cleaning.
Innovation Solution
A surface cleaner with a movable blade assembly and adjustable lift system, where a spring maintains the blade in contact with the surface and an adjustment member allows the user to adjust the blade's position and nozzle height, enabling the blade to float over uneven surfaces and adapt to various cleaning tasks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the blade assembly is fixed in position, then the structure is simple and stable, but the cleaning effectiveness on uneven surfaces deteriorates
Solution Approach 1:
The blade assembly is designed to be movable rather than fixed, allowing it to dynamically adjust its position relative to the housing. A spring mechanism provides continuous contact force while permitting the blade to float over uneven surfaces, resolving the contradiction between maintaining cleaning effectiveness and avoiding structural complexity.
Solution Approach 2:
The system changes the positional parameter of the blade assembly dynamically. The blade can move between a lowered cleaning position and a raised storage position, with the spring maintaining optimal contact pressure. This parameter adjustment enables effective cleaning on varying surface conditions without requiring a complex adjustable mechanism.
2Reliability
If the blade assembly is always in contact with the surface, then cleaning effectiveness is maintained, but the blade cannot be stored or transported efficiently
Solution Approach 1:
The blade assembly incorporates a movable design that transitions between two states: a lowered position for cleaning where spring force maintains contact, and a raised position for storage where the blade is retracted. This dynamic positioning resolves the contradiction between maintaining cleaning effectiveness and enabling efficient storage.
Solution Approach 2:
The blade assembly can be completely extracted or raised away from the housing during storage and transport. The spring mechanism allows the blade to be fully retracted without requiring constant contact with the surface, separating the cleaning function from the storage state and resolving the contradiction.
3Reliability
If a spring mechanism is added to maintain blade contact, then cleaning effectiveness on uneven surfaces improves, but the device complexity increases
Solution Approach 1:
The spring mechanism modifies the force parameter acting on the blade assembly, providing continuous contact pressure that adapts to surface variations. This simple elastic element achieves consistent surface contact without requiring complex active control systems, resolving the contradiction between reliability and complexity.
Solution Approach 2:
The spring mechanism is a passive, self-regulating component that automatically maintains blade contact through elastic force. It requires no external power source, control systems, or complex mechanisms, providing reliable surface contact while minimizing added complexity through its simple, self-service design.
4Adaptability or versatility
If the blade assembly is made movable with adjustment capability, then adaptability to different surfaces improves, but the structural complexity and potential reliability issues increase
Solution Approach 1:
The system provides adaptability through parameter adjustment - the blade assembly can be positioned at different heights and angles to suit various surface conditions. The spring mechanism maintains optimal contact pressure across different positions, enabling surface adaptation while using simple, reliable mechanical components rather than complex active control systems.
Solution Approach 2:
The movable blade assembly with spring suspension provides dynamic adaptability to uneven surfaces. The blade naturally follows surface contours through controlled movement, achieving versatility without requiring complex sensors or actuators. This passive dynamic adaptation maintains reliability by avoiding additional electronic or control system components.
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 solution ensures consistent contact with surfaces, improving cleaning efficiency by allowing the blade to adjust its position and the nozzle height, accommodating different surface types and heights, thereby enhancing cleaning performance.
Implementation Method 1
A spring is coupled between the housing and the blade assembly, and the spring applies a force on the blade assembly to move the blade assembly toward the lowered position
Data Source
AI summary
A surface cleaner including a housing and a blade assembly with a blade element. The blade assembly is movable between a lowered position and a raised position relative to the housing. A spring is coupled between the housing and the blade assembly, and the spring applies a force on the blade assembly to move the blade assembly toward the lowered position. The blade element is allowed to move toward the raised position, against the force, such that the force maintains the blade element in contact with a surface to be cleaned. In addition, when in the raised position, the blade element is held against the force and inhibited from moving toward the lowered position.