Prefabricated Hoistway Modules for Elevator Construction
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Solution Overview
Problem
Conventional elevator construction methods are inefficient and require extensive on-site adjustments, complicating logistics and prolonging the construction process, while modular solutions lack efficiency and simplicity.
Innovation Solution
A method involving prefabricated hoistway modules with tubular frames and guide rail sections, allowing for the quick assembly of a counterweighted machine-roomless elevator, where modules are stacked to form a continuous hoistway and elevator car guidance system, enabling swift and accurate installation without excessive on-site work.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional elevator construction methods are used, then components can be built from scratch at the construction site, but construction time is prolonged and logistical complexity increases
Solution Approach 1:
The hoistway is divided into multiple prefabricated modules that can be manufactured separately and then assembled on-site. Each module contains pre-installed guide rail sections and other components, allowing for parallel production and reducing overall construction time while simplifying logistics through standardized units.
Solution Approach 2:
Components such as guide rail sections and module assemblies are prepared in advance in controlled manufacturing environments before being transported to the construction site. This preliminary fabrication ensures higher precision and reduces on-site adjustment work, directly addressing the problem of prolonged construction time.
2Manufacturing precision
If conventional construction methods are used, then all installation work can be performed at the construction site, but accurate positioning requires lots of adjustment work
Solution Approach 1:
Guide rail sections and module components are precisely positioned and pre-assembled in controlled factory environments using specialized equipment, achieving high positioning accuracy before transport. This eliminates the need for time-consuming adjustment work at the construction site.
Solution Approach 2:
Standardized module designs with precise dimensional tolerances are replicated multiple times, ensuring consistent positioning accuracy across all modules. The modular design allows for precise copying of connection interfaces and alignment features.
3Ease of manufacture
If modular elevator solutions are used, then assembly is simplified, but efficiency and swiftness of construction process are not sufficiently improved
Solution Approach 1:
The elevator system is segmented into standardized hoistway modules that can be rapidly assembled through simple stacking operations. Each module is designed with integrated connection features that simplify the assembly process while maintaining high construction efficiency.
Solution Approach 2:
Multiple functions are merged into single modular units, including guide rail sections, structural frames, and installation components. This integration reduces the number of separate assembly operations required while maintaining ease of manufacture and high construction efficiency.
Data Source
AI summary
The invention relates to a method for constructing an elevator, comprising providing an elevator car; providing plurality of prefabricated hoistway modules to be piled on top of each other, each hoistway module bordering a hoistway space into which the whole elevator car or at least an upper or lower end thereof can be fitted to move; and piling said plurality of prefabricated modules on top of each other, such that the hoistway spaces of the prefabricated modules are vertically aligned forming a continuous vertically elongated hoistway where the elevator car can be fitted to move; and arranging the elevator car to be vertically movable in the hoistway. The invention also relates to an elevator obtained with the method.