Fire Separation Door With Vertical Bar Locks For Flexible Access
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Solution Overview
Problem
Fire protection partitions with pivot bearings and locking devices often require significant effort to create larger passage openings, especially when accessing areas like electrical systems, as the standard door opening area is insufficient for larger installations, and existing solutions for unhinging doors are cumbersome and costly.
Innovation Solution
Each door is equipped with bar locks on both side edges, with lock bars that can extend vertically into recesses in the upper and lower end rails, allowing doors to be converted from right- to left-handed and opened as double doors or completely removed to accommodate larger access openings with minimal construction and cost effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If doors are designed to be unhinged to create larger passage openings, then the access area is increased, but the amount of work required and construction effort increases significantly
Solution Approach 1:
The door system is segmented into multiple independent doors with individual bar locks on each door's side edges. This allows selective opening of adjacent doors to create variable passage areas without requiring complex unhinging mechanisms. Each door can be independently locked or unlocked by operating its bar lock, enabling flexible access configurations with minimal construction effort.
2Ease of manufacture
If standard door openings are used to maintain simple construction, then construction effort is reduced, but the access area is insufficient for larger installations
Solution Approach 1:
The bar lock mechanism provides dynamic locking capability where the lock bars can be extended or retracted vertically into recesses in the end rails. This dynamic design allows the door configuration to change from closed to partially open to fully open states, enabling variable passage areas while maintaining simple construction with standard door components.
3Adaptability or versatility
If doors are converted to different handedness to create passage openings, then access flexibility is improved, but the complexity of operation increases
Solution Approach 1:
The bar lock system is designed to be self-contained on each door, with the lock bars and operating handles directly integrated into the door structure. Each door can be independently operated by its own bar lock without requiring coordination with adjacent doors or complex hinge mechanisms, simplifying the operation while maintaining high adaptability for creating various passage configurations.
Data Source
Figure 1
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Figure 3
AI summary
A firewall partition consists of a series of upright panels in-line, each terminating at the side in a vertical rod with a lift/lower locking mechanism. The rod extremities engage in parallel rails fitted to the ceiling and floor. The handle-operated lift-lower locking mechanism is located on the door outer face.