Flush-Mounting Box With Rotating Fixing Nuts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing flush-mounting boxes for electrical equipment face difficulties in angular adjustment, requiring dismantling and repositioning, which is time-consuming and inefficient, and existing solutions with additional holes for screw position adjustment are cumbersome.
Innovation Solution
The second fixing means comprise movable nuts within cages, allowing for angular adjustment of electrical equipment by rotating retaining screws, with guides for multiple holding positions and lateral protection, and first fixing means include articulated flanges for secure box attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional holes are provided in the housing to allow changing of fixing screw positions, then angular adjustment capability is improved, but device complexity increases
Solution Approach 1:
The housing is segmented by providing multiple threaded holes at different angular positions, allowing the fixing screw to be relocated to achieve angular adjustment without dismantling the entire housing structure
Solution Approach 2:
The adjustment mechanism transitions from linear screw movement to angular positioning by providing threaded holes distributed around the housing perimeter, enabling angular adjustment through radial hole selection
2Reliability
If the box is fixed in position to secure installation, then fixing reliability is improved, but angular adjustment capability deteriorates
Solution Approach 1:
Multiple threaded holes are pre-positioned at predetermined angular locations in the housing, allowing the fixing screw to be inserted into a different hole to achieve angular adjustment while maintaining secure fixation without requiring box dismantling
Solution Approach 2:
The fixing system transitions from a static single-hole configuration to a dynamic multi-hole configuration, enabling angular adjustment by relocating the fixing screw between pre-positioned holes while maintaining reliable fixation
3Adaptability or versatility
If the retaining screw is completely unscrewed to change its position in a box with multiple threaded holes, then position change capability is improved, but loss of time increases
Solution Approach 1:
Instead of completely unscrewing the retaining screw to change position, the invention allows partial unscrewing followed by insertion into an adjacent threaded hole, reducing the time and effort required for position adjustment while maintaining full position change capability
Data Source
Figure 1~4
Figure 5~7
AI summary
The case has a single piece assembly (1) extending along a longitudinal axis (Z) and comprising an open end (2) and a closed end (3). A fixing unit i.e. clamp (4), fixes the case in a hollow partition, and another fixing unit (5) is placed on the periphery of the assembly and intended to maintain an electrical switchgear inside the assembly. The fixing unit (5) is movable around the longitudinal axis and accessible from the open end. The fixing unit includes a nut (55) to be moved in a retainer, where the retainer has a through hole for passing a retaining screw (6).