Bidirectional Escape Route Lock Nut With Independent Handle Rotation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing bidirectional escape route locks require complex side selection devices for reliable unlocking from both sides, which can lead to jamming if one side is blocked.
Innovation Solution
A lock nut design with two independently rotatable connecting nuts and a central nut part, allowing independent operation of inner and outer handles without the need for a selection device, ensuring secure unlocking from both sides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a complex side selection device is used to enable bidirectional unlocking, then the lock can be unlocked from both sides, but the device complexity increases and jamming risk increases
Solution Approach 1:
The lock nut is divided into three separate parts: a first connecting nut, a second connecting nut, and a nut center part. Each connecting nut can be independently rotated to engage or disengage from the lock mechanism, allowing bidirectional unlocking without requiring a complex selection device. The segmentation enables independent operation of each side while maintaining a relatively simple overall structure.
2Adaptability or versatility
If a selection device is required to operate the lock from different sides, then bidirectional operation is enabled, but the reliability decreases due to potential jamming
Solution Approach 1:
By segmenting the lock nut into independently rotatable connecting nuts, each side can be operated independently without affecting the other. The first connecting nut and second connecting nut can be rotated separately to engage or disengage from the lock mechanism, eliminating the need for a selection device and reducing jamming risk.
Solution Approach 2:
The lock mechanism allows dynamic independent rotation of each connecting nut. The first connecting nut and second connecting nut can be rotated in their respective directions to engage or disengage from the lock mechanism, providing flexible bidirectional operation that adapts to different usage scenarios without requiring a fixed selection configuration.
3Ease of operation
If the inner handle and outer handle are coupled, then operation from one side affects the other side, but this causes jamming when one side is blocked
Solution Approach 1:
The handle operation is segmented into independent first and second connecting nuts. The first connecting nut responds to inner handle operation while the second connecting nut responds to outer handle operation. This segmentation allows each handle to operate independently without coupling, preventing jamming when one side is blocked while maintaining ease of operation from either side.
Data Source
Figure 1~4
Figure 5
AI summary
The invention relates to a lock nut (1) for panic locks in bidirectional escape routes, comprising a first connecting nut (1a), a nut center part (3), and a second connecting nut (2b). In order to increase security and to enable opening of a lock (13) from both sides, the first connecting nut (2a), the nut center part (3), and the second connecting nut (2b) are mounted in such a way that rotation of the first connecting nut (2a) causes rotation of the nut center part (3), with the second connecting nut (2b) remaining at rest, and rotation of the second connecting nut (2b) causes rotation of the nut center part (3), with the first connecting nut (2a) remaining at rest.