Elevator Door Interlock Device for Vertical and Horizontal Travel
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Solution Overview
Problem
Existing elevator door systems struggle to meet the operational requirements of elevators that travel in both vertical and horizontal directions, as they cannot effectively manage door interlock operations in complex building structures.
Innovation Solution
An elevator door interlock device with two states is provided, where it operates the landing door lock in a first state when traveling vertically and switches to this state upon reaching a landing door position while traveling horizontally, then returns to a second state to avoid contact with the landing door lock during continued horizontal travel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the elevator door interlock device is designed to operate in both vertical and horizontal directions, then the adaptability of the elevator system is improved, but the device complexity increases
Solution Approach 1:
The elevator door interlock device employs a movable operating portion that can dynamically switch between two positions: a first position for vertical direction operation and a second position for horizontal direction operation. This dynamic configuration allows the same device to adapt to different travel directions without requiring separate interlock devices, thereby improving adaptability while managing device complexity through a single multi-functional component
Solution Approach 2:
The interlock device is designed with universal functionality to handle both vertical and horizontal elevator operations. The operating portion can be positioned to engage with landing door locks in vertical travel mode or repositioned to disengage for horizontal travel mode, making the device universally applicable to mixed-direction elevator systems without requiring direction-specific hardware
2Ease of operation
If the operating portion is made movable to switch between first and second positions, then the ease of operation is improved, but the reliability may worsen due to additional moving components
Solution Approach 1:
A drive portion acts as an intermediary mechanism between the control system and the operating portion, providing controlled and reliable actuation. This intermediary component ensures that the operating portion transitions smoothly and predictably between positions, maintaining reliability by using a dedicated actuation mechanism rather than direct manual adjustment or complex multi-component linkages
3Manufacturing precision
If the drive portion is configured to precisely control the operating portion position, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The positioning function is extracted and concentrated in the drive portion, which is specifically designed to control the operating portion's position. By isolating the actuation and positioning functions in a dedicated component rather than distributing them across multiple mechanisms, the patent achieves precise control while actually reducing overall device complexity through functional specialization
Data Source
AI summary
An elevator door interlock device, an elevator door interlock operation method and an elevator system. The elevator door interlock device is arranged on an elevator car and has a first state in which to operate a landing door lock at a current arrival position of the elevator car to open or close a landing door, and a second state in which it makes no contact with the landing door lock, and the elevator door interlock device is configured to be in the first state when the elevator car travels in a vertical direction, and to be in the second state when the elevator car travels in a horizontal direction and to switch to the first state to open or close the landing door after the elevator car reaches a landing door position, and to return to the second state when the elevator car continues to travel in the horizontal direction.