Pivoting Cable Duct Assembly for Secure Cover Plate Retention
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Solution Overview
Problem
Cable duct assemblies mounted on non-horizontal surfaces face issues where the weight of cables causes the cover plate to disconnect, leading to cables spilling out due to inadequate retention mechanisms.
Innovation Solution
The cable duct assembly incorporates a design with pivotally connected sidewalls and lobe mechanisms that include rotation limiting portions, allowing the cover plate to securely engage with the sidewalls and limit rotation, preventing disconnection under load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the cable duct assembly uses a simple cover plate connection to sidewalls, then the device complexity is reduced, but the reliability of cable retention deteriorates under vertical mounting conditions
Solution Approach 1:
The connection mechanism transitions from a static rigid connection to a dynamic system with rotational degrees of freedom. The cover plate can rotate relative to the sidewalls through defined arcs, allowing the mechanism to adapt to cable weight loads while maintaining secure retention. This dynamic capability resolves the contradiction by enabling reliable retention without requiring overly complex fixed connection structures.
Solution Approach 2:
The connection system is divided into separate functional components: the cover plate, sidewalls with arms, and defined rotational arcs. Each component performs a specific function - the arms provide structural support, the arcs define rotation limits, and the cover plate secures cables. This segmentation allows each element to be optimized for its specific role, achieving reliable retention without unnecessary overall complexity.
2Stability of the object's composition
If the cover plate is rigidly fixed to sidewalls, then the stability of connection is improved, but the adaptability to cable weight loads deteriorates
Solution Approach 1:
The connection allows controlled rotation of the cover plate relative to the sidewalls within defined arcs. This dynamic movement enables the system to adapt to varying cable weights and mounting orientations while maintaining stable connection through the constrained rotational path. The stability is preserved through the defined arcs rather than rigid fixation.
Solution Approach 2:
The system changes the orientation parameter of the cover plate relative to the sidewalls through controlled rotation. This parameter change allows adaptation to different cable load conditions and mounting surfaces while maintaining secure connection. The rotation arcs define the acceptable range of this parameter change, ensuring stability within operational limits.
3Ease of operation
If rotation of the cover plate is unrestricted, then the ease of operation for cable installation is improved, but the reliability of cable retention deteriorates
Solution Approach 1:
The rotational movement is segmented into discrete arcs rather than continuous rotation. This segmentation provides sufficient freedom of movement for cable installation and access operations while preventing excessive rotation that would compromise retention security. Each arc represents a controlled range of motion that balances accessibility with reliability.
Solution Approach 2:
The cover plate rotation is dynamically constrained to specific arcs rather than being completely free or completely fixed. This dynamic constraint allows the system to provide ease of operation within the permitted arcs while automatically preventing rotation beyond the secure retention zone. The rotational freedom needed for installation is preserved without sacrificing retention reliability.
Data Source
AI summary
A cable duct assembly configured to retain an elongated cable is presented herein. The cable duct assembly includes a cover plate connected to a first sidewall and a second sidewall and a base plate pivotally connected to the first sidewall and the second sidewall. The first sidewall includes first arms that include lobe mechanisms and second arms that include rotation limiting portions.