Elevator Car Door Lock Mechanism with Integrated Cross Beam Hook
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing elevator car door lock systems are either inconvenient to mount and adjust or require complex structures that occupy additional space and increase costs, particularly when using asynchronous door vanes, and fail to prevent door gaps from being too large in abnormal unlocking situations, posing safety risks.
Innovation Solution
An elevator car door operator device with a car door lock system that includes a cam-shaped hook head, a roller, and limiting devices to control the movement of movable vanes, ensuring the door remains locked during normal operation and can be opened during emergency rescue without additional operation, while maintaining a compact and cost-effective design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the car door lock uses the first mounting way (rotatable hook on suspension part, fixed hook on cross beam), then the unlocking timing can be controlled, but the mounting and adjustment become inconvenient and complex
Solution Approach 1:
The patent combines the car door lock mechanism with the door operator cross beam structure. The fixed hook is integrated into the cross beam, and the rotatable hook is mounted on the car door suspension part, merging the locking function with the existing door operation structure. This integration simplifies mounting and adjustment while maintaining reliable unlocking timing control.
2Ease of operation
If the car door lock uses the second mounting way (rotatable hook on cross beam, fixed hook on suspension part), then the unlocking timing is simplified, but the structure becomes complex and occupies additional space on the cross beam
Solution Approach 1:
The patent merges the car door lock mechanism with the door operator cross beam by integrating the fixed hook into the cross beam structure and mounting the rotatable hook on the car door suspension part. This integration eliminates the need for separate mounting components, reduces structural complexity, and avoids occupying additional space on the cross beam while maintaining simplified unlocking timing.
3Reliability
If additional unlocking device is added to the landing side, then the car door lock function is achieved, but the cost increases and the attractiveness of sightseeing elevators is reduced
Solution Approach 1:
The patent extracts the unlocking device from the landing side and integrates it into the car door side mechanism. The car door lock uses a rotatable hook on the car door suspension part that interacts with a fixed hook on the cross beam, eliminating the need for additional unlocking devices on the landing side. This reduces cost and maintains the aesthetic appeal of sightseeing elevators while achieving reliable car door locking functionality.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present invention discloses an elevator car door operator device with a car door lock, which comprises an elevator door operator cross beam, a door vane assembly and a door vane mounting seat. The door vane mounting seat is fixedly arranged on a driving side car door, the door vane assembly comprises a first movable vane, a second movable vane, a first movable vane driving device, a protruding part, a fixed hook, a blocking part and a rotatable hook, and the rotatable hook fits with the fixed hook to lock or loosen an elevator car door; and the blocking part is capable of abutting against the protruding part to limit the rotation range and speed of the first movable vane driving device. The present invention can prevent the door gap, from which the door can be forced open by passengers in the car, from being too large when the elevator is in an abnormal unlocking area, prevent the danger from occurring, open and close the door normally in the unlocking area, and realize the opening of the car door as long as the landing door is opened during emergency rescue in the unlocking area.