Vacuum Cleaner Ground Brush Cover Locking for Safe Brushroll Access
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Solution Overview
Problem
Existing vacuum cleaners lack a reliable mechanism to prevent the brushroll cover from falling down or the brushroll from falling out when the brushroll cover is rotated open, posing a safety risk and operational inconvenience.
Innovation Solution
A ground brush design featuring a first locking member on the brushroll body and a second locking member on the rotating shaft, along with a snapping cooperating mechanism, ensures the brushroll cover remains locked to the ground brush body and the brushroll is securely connected to the cover, preventing it from falling out during rotation. Additionally, a microswitch system is triggered to stop the brushroll when the cover is opened, ensuring safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the brushroll cover is rotated to be opened, then the brushroll cover can be accessed for maintenance or cleaning, but the brushroll cover easily falls down and the brushroll falls out
Solution Approach 1:
The locking members are pre-configured on the brushroll cover and ground brush body to automatically engage when the cover is rotated to the open position, preventing the brushroll from falling out before any maintenance or cleaning operation can occur
Solution Approach 2:
The locking mechanism changes the positional parameter of the brushroll cover by providing discrete locked positions at specific rotation angles, transforming the continuous rotation motion into discrete stable states where the brushroll is securely retained
2Ease of operation
If the brushroll cover is opened, then the brushroll can be accessed, but the brushroll continues working which may injure the user
Solution Approach 1:
The microswitch provides immediate feedback when the brushroll cover is rotated to the open position, automatically detecting the cover's position and triggering the brushroll to stop, thereby preventing user injury while allowing safe access to the brushroll
Solution Approach 2:
The microswitch is pre-positioned to detect the open state of the brushroll cover before the user can accidentally contact the running brushroll, and automatically triggers the stop function in advance to eliminate the injury hazard
Data Source
AI summary
A ground brush for a vacuum cleaner includes a ground brush body, brushroll cover, and brushroll. The ground brush body has a first locking member. The brushroll cover has a lower end rotatingly connected with the ground brush body through a rotating shaft, and an upper end provided with a snapping cooperating part. When the brushroll cover is rotated to be opened at a certain angle, the first locking member cooperates with a second locking member to lock the brushroll cover to the ground brush body. The brushroll is rotatably disposed on the brushroll cover, and has a lower end connected with the lower end of the brushroll cover and an upper end provided with a snapping part, in which the snapping part is configured to cooperate with the snapping cooperating part, such that the brushroll cover can drive the brushroll to rotate relative to the ground brush body.