Revolving Door Emergency Exit Segmented Sliding Mechanism
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Solution Overview
Problem
Existing revolving doors require the door wings to swivel towards the central post for emergency exit provision, which is complex and inefficient, and do not provide a reliable emergency exit solution.
Innovation Solution
The door wings are designed to move closely adjacent to the shell wall, allowing the sliding door to operate freely, with separable sliding door parts that disconnect during normal operation and move apart in emergencies to create an unobstructed passage, eliminating the need for the door wings to swivel around the central post.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the two door wings are swivelled towards each other with the central post as a turning point to provide emergency exit, then the emergency exit provision is achieved, but the device complexity and operational inefficiency increase
Solution Approach 1:
The sliding door is divided into two separable parts that can be independently moved. During normal operation, both parts are connected to maintain draught prevention. During emergency, they can be separated to create unobstructed passage without requiring the entire door wing assembly to swivel.
Solution Approach 2:
The emergency exit function is extracted from the door wing swivelling mechanism and assigned to the separable sliding door parts. This allows the door wings to remain in their normal radial position while still providing emergency egress by simply moving the sliding door parts aside.
2Productivity
If the door wings are kept in extended radial position during normal operation, then traffic flow is maintained, but emergency exit access is blocked
Solution Approach 1:
The sliding door parts are designed to be dynamically reconfigurable - connected during normal operation to maintain draught prevention and traffic flow, and separable during emergency to provide unobstructed passage. This dynamic adaptation resolves the contradiction between maintaining productivity and ensuring emergency accessibility.
3Loss of energy
If the sliding door is used to prevent draughts during normal operation, then energy efficiency is improved, but emergency passage is obstructed
Solution Approach 1:
The sliding door is segmented into two separable parts that can be independently positioned. During normal operation, both parts are connected to effectively seal and prevent draughts. During emergency, the parts can be separated to create open passage, resolving the contradiction between energy efficiency and emergency accessibility.
Data Source
AI summary
A revolving door comprising an at least partly cylindrical shell wall, which is embodied with an entrance and an exit, and two rotatable door wings, which during normal operation are placed in each other's extended direction inside the shell wall, wherein between the shell wall and an end of at least one door wing, which end is movable near and along the shell wall, a sliding door is provided which is suitable for closing off the entrance or exit respectively, and in that during normal operation an end of the door wing is constantly positioned near the sliding door and between its lateral edges, and wherein the sliding door comprises two adjacent separable sliding door parts which in normal operation are connected to each other and are movable away from each other in an emergency situation to provide a free and unobstructed passage way through the entrance or exit respectively.