Locking Structure for Precise Lifting Guidance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing locking-unlocking structures in water purification systems and refrigerators fail to accurately guide the stop protrusion of a lifting plate along a lifting line, leading to incomplete recognition of the falling state, which can result in user error and system failure.
Innovation Solution
A locking-unlocking structure featuring an actuation guide unit with a stop groove and an elastic member with a guide protrusion that blocks the falling line, allowing the stop protrusion to be lifted only along the lifting line, and generating a sound upon separation to acoustically indicate completion of the falling process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the stop protrusion is allowed to circulate between lifting line and falling line, then the lifting body can be lifted and fallen repeatedly, but the stop protrusion may enter through the falling line during lifting, causing imprecise guidance
Solution Approach 1:
The guide structure is segmented into distinct lifting line and falling line pathways. The elastic member with guide protrusion creates separate guidance zones, ensuring the stop protrusion follows the correct path segment (lifting or falling) based on operational state, preventing path confusion while maintaining repeated operation capability
Solution Approach 2:
The elastic member acts as an intermediary element between the stop protrusion and the guide grooves. The guide protrusion on the elastic member mediates the interaction by providing contact guidance that actively directs the stop protrusion along the lifting line, preventing erroneous entry into the falling line while allowing smooth circulation
2Device complexity
If no additional components are added, then the structure remains simple, but the user cannot visually recognize the completion of falling
Solution Approach 1:
The elastic member provides tactile and positional feedback to the user during the falling operation. As the stop protrusion moves along the lifting line guided by the guide protrusion, the user can feel the progression and recognize completion through the final position and contact state, eliminating the need for visual indicators while maintaining state awareness
Solution Approach 2:
The guide protrusion on the elastic member serves a dual function: it guides the stop protrusion along the correct path and simultaneously provides operational feedback to the user. The structure is self-explanatory through its mechanical interaction, allowing users to understand the system state through direct engagement without additional signaling components
3Manufacturing precision
If the elastic member is provided with a guide protrusion that gradually raises up, then the stop protrusion is precisely guided along the lifting line, but the elastic member structure becomes more complex
Solution Approach 1:
The guide protrusion function is merged into the elastic member itself rather than being a separate component. The gradual raise profile is integrated directly into the elastic member's geometry, combining the guiding function with the elastic deformation function in a single unified element, reducing overall system complexity while maintaining precise guidance
Solution Approach 2:
The guide protrusion uses gradual parameter change in its height profile along the lifting line. This gradual raise approach transforms the guidance mechanism from requiring complex mechanical linkages to using simple geometric progression, achieving precise guidance through controlled dimensional variation rather than complex structural arrangements
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
Ensures precise guidance of the stop protrusion along the lifting line and provides auditory feedback for the completion of the falling process, preventing user errors and system failures.
Implementation Method 1
an elastic member is provided along the falling line of the actuation guide unit
Data Source
AI summary
A locking-unlocking structure for guiding forward lifting of a lifting body lifted by repeating a pushing action is provided. The locking-unlocking structure includes an actuation guide unit provided at a center thereof therein with a stop groove to guide stop of a lifting body in a lifting state, having a lifting line and a falling line branching downward from the stop groove, and fixedly coupled to a fixing body, and an actuation unit comprising a lifting plate having a stop protrusion, which is mounted in the stop groove of the actuation guide unit or circulates along the lifting line and the falling line, and coupled to the lifting body movably left and right. The guide protrusion protrudes from the falling line of the actuation guide unit while being inclined downward along the falling line to block an entrance so that the stop protrusion of the lifting plate is prevented from entering the falling line when the lifting plate of the actuation unit is lifted. The guide protrusion is provided in an elastic member to be elastically actuated when the stop protrusion of the lifting plate falls along the falling line.