Elevator Car Door Locking Hook Mechanism for Vane Retrofit
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Solution Overview
Problem
Existing elevator equipment replacement or repair processes often require disassembly and assembly of multiple components, increasing construction time and costs, and existing solutions are limited to specific types of vanes, reducing flexibility and efficiency.
Innovation Solution
A vane base with a vane drive assembly and vane assembly that can accommodate both clamping and expanding vanes, utilizing a four-linkage mechanism and elastic restoring members to facilitate efficient locking and unlocking of elevator car doors, compatible with various elevator types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing elevator equipment replacement processes are used, then equipment can be replaced or repaired, but disassembly and assembly of multiple components increases construction time and costs
Solution Approach 1:
The locking device is divided into independent functional modules: vane base, vane assembly, and vane drive assembly. This segmentation allows for selective replacement of only the locking mechanism rather than the entire door system, significantly reducing disassembly and assembly work during equipment replacement or repair operations.
Solution Approach 2:
The vane base is designed with universal mounting interfaces and standardized dimensions that can accommodate different types of vanes (clamping vane or expanding vane). This universality enables the same vane base to be reused across various elevator models and configurations, reducing the need for custom fabrication and accelerating the replacement process.
2Productivity
If existing elevator equipment replacement processes are used, then equipment can be replaced or repaired, but disassembly and assembly of multiple components increases assembly costs
Solution Approach 1:
The locking device is divided into independent functional modules: vane base, vane assembly, and vane drive assembly. This segmentation allows for selective replacement of only the locking mechanism rather than the entire door system, significantly reducing disassembly and assembly work during equipment replacement or repair operations.
Solution Approach 2:
The design enables recovery and reuse of the vane base and other compatible components from original elevator installations. By retaining and reusing these original devices, the need for complete replacement is eliminated, reducing both material costs and assembly expenses while maintaining functional performance.
3Reliability
If existing locking device designs are used, then locking function is achieved, but compatibility is limited to specific types of vanes, reducing flexibility
Solution Approach 1:
The vane base is designed with universal mounting interfaces and standardized dimensions that can accommodate different types of vanes (clamping vane or expanding vane). This universality enables the same vane base to be reused across various elevator models and configurations, reducing the need for custom fabrication and accelerating the replacement process.
Solution Approach 2:
The locking device incorporates dynamic adjustment capabilities through the vane drive assembly, which can adapt its operation mode based on the specific vane type installed. The system can switch between different driving modes to accommodate clamping vanes, expanding vanes, or other configurations, ensuring reliable locking function across diverse applications.
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 efficient, cost-effective replacement and repair of elevator equipment by allowing reuse of original devices, reducing assembly time and costs, and expanding compatibility with different vane types, facilitating mass production and maintenance.
Implementation Method 1
an elastic restoring member mounted on the vane base and connected with the car door locking hook
Implementation Method 2
a first vane, a second vane, a first linkage and a second linkage, the first vane and the second vane are hinged with the first linkage and the second linkage respectively to form a four-linkage mechanism
Data Source
AI summary
An elevator car door locking device and elevator equipment. The car door locking device includes a vane base provided with a first and a second rotation center; a vane assembly provided with a clamping vane or an expanding vane; and a vane drive assembly having a driving member, a transmission member, an unlocking member and a car door locking hook. 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, and the unlocking member is hinged to a third rotation center on the driving member and is provided with a limiting part for limiting the connecting shaft.