Dust Collector Coupling Lock for Cleaner Lift Safety
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cleaners risk accidental detachment of the dust collection unit from the main body when lifted, potentially causing damage or injury due to the main body falling, and lack a mechanism to prevent coupling release without additional components.
Innovation Solution
A cleaner design featuring a rotating shaft and connection member system that prevents rotation of the connection unit when the main body and dust collection unit are lifted, utilizing a connection rotating shaft that moves between positions to maintain coupling, and includes a button member and elastic members to manage the connection state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the button member is pressed to decouple the dust collection unit from the main body, then the dust collection unit can be detached for dust removal, but the main body may fall and cause damage or injury when lifted together with the dust collection unit
Solution Approach 1:
The connection rotating shaft is designed to move to a second position that prevents rotation of the connection member before the harmful effect (main body falling) can occur. When the dust collection unit is lifted, the connection rotating shaft automatically shifts to block the button member's action, thereby preemptively preventing the decoupling that would lead to the main body falling and causing damage or injury.
Solution Approach 2:
The connection rotating shaft performs a preliminary action by moving to the second position to engage the connection fixing rib with the dust collection unit fixing rib, thereby locking the connection member in place before any accidental decoupling can happen. This preliminary locking action ensures that even if the button member is pressed during lifting, the connection cannot be released.
2Ease of operation
If the connection unit is designed to allow easy coupling and decoupling, then the dust collection unit can be quickly attached and detached, but the connection may be accidentally released during normal handling
Solution Approach 1:
The connection rotating shaft is designed to be movable between two positions (first and second positions) along the rotating shaft installing part. In the first position, it allows the connection member to rotate for coupling and decoupling operations. In the second position, it prevents rotation to maintain connection stability. This dynamic switching capability enables the system to adapt between ease of operation and reliability based on the operational state.
Solution Approach 2:
The system changes the rotational parameter of the connection member by moving the connection rotating shaft between positions. When the connection rotating shaft is at the first position, the connection member can rotate freely for coupling/decoupling. When moved to the second position, the rotation is prevented, changing the state from 'allowing movement' to 'constraining movement', thereby maintaining connection integrity during handling.
3Reliability
If a locking mechanism is added to prevent accidental detachment, then connection reliability improves, but the device complexity increases with additional components
Solution Approach 1:
The locking function is merged with the existing connection unit components rather than adding a separate locking mechanism. The connection rotating shaft, which is part of the connection unit, serves dual purposes: enabling rotation for coupling/decoupling operations and preventing rotation to maintain stability. The button member's pressing action is also merged into the existing decoupling mechanism. This integration avoids increasing device complexity while improving connection reliability.
Solution Approach 2:
The connection rotating shaft performs multiple functions: it acts as a rotation axis for the connection member, a movable element that can shift between positions, and a locking element that prevents rotation when at the second position. The button member also serves multiple functions: initiating decoupling by pressing the connection member and potentially triggering the connection rotating shaft to move to the locking position. This multi-functionality reduces the need for additional dedicated locking components.
Data Source
AI summary
A cleaner includes a main body, a dust collection unit coupled with the main body at a part of the main body, and including a rotating shaft installing part, a connection member configured to connect the dust collection unit to the main body, and rotatably installed in the dust collection unit, an insertion part formed in the main body such that at least one part of the connection member is inserted into the insertion part, and a connection rotating shaft rotatably rested on the rotating shaft installing part such that the connection rotating shaft becomes a center of rotation of the connection member, the connection rotating shaft configured to move relatively along the rotating shaft installing part.