Vacuum Cleaner Locking Unit for Rotatable Joint Stability
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Solution Overview
Problem
Existing vacuum cleaners with rotatable nozzle assemblies face issues with the main body not being securely fixed at a predetermined angle due to wear or damage of the joint parts, leading to instability and potential damage during use.
Innovation Solution
A locking unit is integrated into the connector of the vacuum cleaner, which limits the rotation of the main body with respect to the nozzle assembly, maintaining it at a predetermined angle and allowing easy unlocking for adjustable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the joint part is designed to allow multiple rotations for cleaning flexibility, then the adaptability is improved, but the reliability deteriorates due to wear and damage of the joint part
Solution Approach 1:
The connector is designed with a rotatable joint that allows dynamic adjustment between vertical and horizontal positions, enabling the main body to rotate relative to the nozzle assembly for adaptable cleaning in different orientations while maintaining structural integrity
Solution Approach 2:
The locking unit is pre-configured with engagement protrusions and grooves that automatically lock the joint at predetermined angles, preventing excessive rotation and wear before damage occurs, thus cushioning against reliability deterioration
2Ease of operation
If the joint part allows free rotation for adjustable operation, then the ease of operation is improved, but the stability worsens when the joint part is worn out
Solution Approach 1:
The connector enables easy rotation and adjustment between vertical and horizontal positions for versatile cleaning operations, while the locking mechanism maintains stability when locked at predetermined angles
Solution Approach 2:
The locking unit acts as an intermediary between the rotatable joint and the main body, providing secure engagement at predetermined angles through protrusion-groove interaction, thus maintaining stability while allowing adjustable operation
3Reliability
If the connector is designed for secure locking, then the reliability is improved, but the ease of operation worsens due to difficulty in unlocking
Solution Approach 1:
The locking unit is designed with elastic members that automatically engage the protrusion and groove for secure locking, while allowing easy manual release by applying force to the handle, making the system self-locking yet easily unlockable
Data Source
AI summary
The vacuum cleaner includes: a vacuum cleaner main body including a suction device generating a suction force; a nozzle assembly connected with the main body and configured to suction air by the suction force of the suction device; a connector configured to connect the nozzle assembly with the main body and rotatably coupled to the nozzle assembly; and a locking unit which locks the main body to maintain a state in which the main body is erect and which unlocks the main body in the locked state by a rotation of the main body.