Bidirectional Door Limiting Mechanism to Prevent Cabinet Door Detachment
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Solution Overview
Problem
Existing electric appliance doors that can be opened from both sides are prone to falling off due to improper user operation, posing a safety hazard.
Innovation Solution
A door limiting mechanism comprising a connecting assembly, locking assembly, and abutting assembly that securely connects the door body to the cabinet body, featuring a rotatable member, locking groove, and elastic returning member to prevent accidental disengagement, allowing the door to be opened from either side while minimizing the risk of the door falling off.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a hinge structure is made movable relative to the door shaft to enable opening from both sides, then the adaptability of the door opening mechanism is improved, but the reliability of the connection between door body and cabinet body deteriorates
Solution Approach 1:
The connection system is divided into three functional modules: connecting assembly (fixed member with locking groove), locking assembly (rotatable member with locking member), and abutting assembly (transmission member with abutting member). Each module performs a specific function, and together they achieve both bidirectional opening capability and reliable connection stability.
Solution Approach 2:
The abutting assembly is pre-configured to automatically engage and lock the locking member in the locking groove when the door is closed. This preliminary locking action prevents accidental disengagement before the door is intentionally opened, ensuring connection stability while maintaining bidirectional opening capability.
2Ease of operation
If the locking structure is simplified to ease operation, then the ease of operation is improved, but the reliability of preventing accidental unlocking deteriorates
Solution Approach 1:
The abutting member acts as an intermediary between the transmission member and the locking member. It provides an additional locking interface that prevents accidental unlocking while requiring only simple user input (pushing the abutting member) to intentionally open the door, thus maintaining both ease of operation and reliability.
3Reliability
If the door limiting mechanism is made more complex to prevent falling off, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The connecting, locking, and abutting functions are merged into a single integrated door limiting mechanism that shares common components (fixed member, rotatable member, transmission member). This combination achieves reliable anti-falling-off protection without proportionally increasing device complexity, as the components serve multiple functions simultaneously.
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 mechanism ensures the door can be safely opened from both sides by automatically locking the door body to the cabinet body, reducing the likelihood of it falling off even with improper operation, enhancing user safety and operational convenience.
Implementation Method 1
the elastic returning member is deformed under force when the locking member is disengaged from the locking groove
Implementation Method 2
the elastic returning member is twisted under force when the user rotates the driving member, and the rotatable member can be back to the origin position under elastic force when the user releases the driving member
Data Source
AI summary
The present application relates to a door limiting mechanism and electric appliance cabinet. The door limiting mechanism includes a connecting assembly, a locking assembly and an abutting assembly, in which the connecting assembly includes a fixed member, a locking groove is provided in the fixed member, the locking assembly includes a rotatable member and a locking member, the locking member is fixedly connected to the rotatable member for passing through the locking groove to form a locking structure, and the abutting assembly is configured to lock the locking member in the locking groove. An electric appliance includes a cabinet body and a door body, in which the door limiting mechanism is provided in the door body, there are two locking assemblies, each of the locking assemblies is connected to the cabinet body by one connecting assembly, and two locking assemblies are symmetrically arranged.