Foldable Elevator Car Ceiling for Tool-Free Roof Access
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Solution Overview
Problem
Existing elevator systems require the use of special tools and labor-intensive processes to access the top area of the elevator car for maintenance, inspection, or emergency evacuation, which is inefficient and potentially dangerous.
Innovation Solution
A ceiling panel system for elevator cars that includes a first and second panel connected by hinges, operated by an internal device with rollers and cables, allowing the panels to fold open or close without additional tools, facilitating easy access to the car roof.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If an integrated ceiling panel design is used, then the ceiling structure is simple and stable, but it requires special tools and labor-intensive processes to open for maintenance access
Solution Approach 1:
The ceiling panel is divided into multiple segments (first panel and second panel) that can be independently folded and opened. This segmentation allows the ceiling to be opened for maintenance access without requiring special tools, while maintaining a simple integrated appearance during normal operation.
Solution Approach 2:
The ceiling panel transitions from a static integrated structure to a dynamic foldable structure. The panel can change its configuration between closed (normal operation) and open (maintenance access) states, providing ease of operation while maintaining structural simplicity.
2Device complexity
If manual opening of the ceiling panel is used, then the structure is simple, but it is time-consuming and potentially dangerous for maintenance and evacuation
Solution Approach 1:
The manual mechanical opening process is replaced with an automated control system. The operating device receives control signals and automatically executes the ceiling panel opening sequence, significantly reducing the time required for maintenance access and emergency evacuation while eliminating the need for special tools.
Solution Approach 2:
The ceiling panel system performs its own opening and closing operations automatically through the operating device, without requiring external manual intervention or special tools. The system serves itself by integrating the opening mechanism within the ceiling structure.
3Ease of operation
If auxiliary tools such as ladders and operating rods are used, then the ceiling can be opened, but the process becomes more complex and requires additional equipment
Solution Approach 1:
The opening mechanism is merged with the ceiling panel structure itself. The operating device and folding panels are integrated into the ceiling assembly, eliminating the need for separate auxiliary tools like ladders and operating rods. This consolidation maintains ease of operation while reducing overall system complexity.
Solution Approach 2:
The ceiling panel system serves multiple functions: it provides a closed ceiling during normal operation and serves as its own opening mechanism for maintenance access. The integrated design eliminates the need for dedicated auxiliary tools, making the system more versatile and less complex.
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
The system provides quick and safe access to the elevator car top area for maintenance and evacuation, reducing the need for additional tools and improving operational efficiency and safety.
Implementation Method 1
a cable, a first end of which is fixed on the first roller, and a second end of which is arranged in an interior space of the elevator car for operation after winding around the second roller
Data Source
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AI summary
The present disclosure relates to an elevator car ceiling system, an elevator car and an elevator system. The elevator car ceiling system comprises: a ceiling panel, arranged below a car roof of an elevator car and having a normal state and a folded state, wherein the ceiling panel comprises a first panel and a second panel connected to each other, and the first panel and the second panel are folded in the folded state to provide an opening to the car roof; and an operating device, arranged inside the elevator car and connected to the ceiling panel, wherein the operating device is configured for operating to cause the ceiling panel to enter the folded state from the normal state, or to return to the normal state from the folded state. The elevator car ceiling system is compact in structure, easy to manufacture and assemble, and convenient to use.