Failsafe Rotating Assembly for Overload-Protected Display Brackets
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Solution Overview
Problem
Display screens are prone to damage due to overload caused by external forces, which can harm the transmission mechanism and power unit in the support bracket.
Innovation Solution
A rotating device with positioning assemblies and a driving assembly that includes positioning members and sleeving members, which disengage upon exceeding a predetermined force, preventing damage by cutting off transmission and ensuring safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the power device continuously transmits force to rotate the display screen, then the rotation function is maintained, but the transmission mechanism and power unit are vulnerable to overload damage from external forces
Solution Approach 1:
The positioning member is designed to dynamically change its state between engaged and disengaged positions based on the magnitude of external force. When normal operation occurs, the positioning member remains engaged to transmit rotational force. When overload occurs, the positioning member automatically disengages to protect the system, embodying the dynamics principle of adapting system behavior to changing conditions.
Solution Approach 2:
The positioning member acts as an intermediary element between the driving assembly and the connecting assembly. It mediates the transmission of force by being engaged with both components, allowing normal force transmission while providing a failsafe disengagement mechanism when external forces exceed predetermined thresholds, thus protecting the power unit and transmission mechanism.
2Reliability
If the positioning member is designed to disengage under overload, then protection against damage is achieved, but the structural complexity of the rotating device increases
Solution Approach 1:
The rotating device is segmented into distinct functional components: the driving assembly, the connecting assembly, and the positioning member that bridges them. This segmentation allows the positioning member to independently perform the failsafe function without complicating the main driving and connecting mechanisms, as each component has a specific, simplified role.
Solution Approach 2:
The positioning member is designed as a sacrificial protective element that may disengage under overload conditions. It serves as a relatively simple, easily replaceable component that protects the more complex and expensive driving assembly and transmission mechanism, embodying the principle of using simpler, less critical components for protection functions.
Data Source
AI summary
A rotating device which releases in the event of overload caused by external forceful counter-rotation includes positioning assemblies, a connecting assembly, and a driving assembly. Each positioning assembly includes a positioning member and sleeving member, part of the positioning member is positioned in the sleeving member and the positioning member abuts a first abutting portion in the sleeving member. The connecting assembly has a first end carrying mounting grooves, the mounting grooves themselves carrying the positioning assemblies. The driving assembly is connected to the first end, and when an external force of a certain magnitude is received by the positioning member, the positioning member moves into the sleeving member, and the driving assembly is thereby separated from and the positioning member, preventing the driving assembly from being damaged. A rotatable display apparatus with the rotating device is also disclosed.