Elevator Car Door Locking Hook Mechanism for Dual Vane Compatibility
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Solution Overview
Problem
Existing elevator car door locking systems lack compatibility with both clamping and expanding vanes, limiting their applicability and increasing production and maintenance costs.
Innovation Solution
A vane-based elevator car door locking device with a vane drive assembly and vane assembly that supports both clamping and expanding vanes, utilizing a four-linkage mechanism and elastic restoring members for efficient locking and unlocking operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated locking system is designed for each vane type (clamping or expanding), then the locking performance for each specific type is optimized, but the device complexity and production costs increase due to needing multiple specialized systems
Solution Approach 1:
The locking device is designed with a universal structure that can accommodate both clamping vanes and expanding vanes through the same mechanism. The vane assembly and drive assembly are configured to work with either vane type, eliminating the need for separate specialized locking systems and reducing overall device complexity while maintaining reliable locking performance for both vane types
2Reliability
If separate locking systems are produced for different vane types, then each system can be optimized for its specific application, but production costs and maintenance complexity increase
Solution Approach 1:
The locking device employs a universal design where the same vane assembly and drive assembly can be used with both clamping and expanding vanes. This standardization allows for mass production of identical components, significantly reducing manufacturing costs and simplifying maintenance operations while ensuring reliable locking performance across different vane types
3Ease of manufacture
If the locking device uses a simple structure, then manufacturing and maintenance are easier, but compatibility with different vane types is limited
Solution Approach 1:
The locking device achieves broad compatibility with both clamping and expanding vanes through its universal vane assembly and drive assembly design, while maintaining a relatively simple overall structure. The standardized interface and mechanism allow the same basic structure to work with different vane types without requiring complex adjustments or additional components
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables widespread compatibility with various elevator types, reducing production costs through mass production and facilitating easy maintenance, while maintaining structural integrity and operational efficiency.
Implementation Method 1
a car door locking hook... and an elastic restoring member connected with the car door locking hook, wherein the elastic restoring member is used to drive the car door locking hook to rotate to switch between a locked state and an unlocked state
Data Source
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AI summary
The present disclosure relates to an elevator car door locking device and elevator equipment. The car door locking device comprises: a vane base (1) provided with a first (O) and a second rotation center (P); a vane assembly (2) provided with a clamping vane or an expanding vane; and a vane drive assembly (2) having a driving member (201), a transmission member (202), an unlocking member (203) and a car door locking hook (204). The driving member, the transmission member and the vane assembly are hinged to the first rotation center, the car door locking hook is hinged to the second rotation center, the transmission member is hinged with the vane assembly through a connecting shaft (205), and the unlocking member is hinged to a third rotation center (Q) on the driving member and is provided with a limiting part (213) for limiting the connecting shaft. The driving member, when driven to move, drives the driving member, the connecting shaft and the unlocking member to rotate around the first rotation center toward a first or second direction. When the vane assembly is in contact with the landing door locking ball and is restricted in movement, the unlocking member swings around the third rotation center to offset the arc-shaped part on the car door locking hook by a displacement, so that the car door locking hook rotates around the second rotation center toward the first direction until reaching an unlocked state, or rotates toward the second direction until reaching a locked state.