Breakaway-Prevent Trolley With Elastic Module
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Solution Overview
Problem
Current retractable roof trolleys lack a stable structure to prevent oscillation and breakaway from cables due to external forces during movement, leading to instability and potential detachment.
Innovation Solution
A breakaway-prevent trolley system with an elastic module inside the slider, featuring an elastic block supported by upper and side plates, which compresses and expands to buffer external forces, maintaining contact with the cable and preventing oscillation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple trolley structure is used for moving on cables, then the device complexity is reduced, but the trolley becomes unstable and prone to oscillation and breakaway from cables under external forces
Solution Approach 1:
The trolley incorporates an elastic module with a spring that allows dynamic adjustment and movement within the slider. This elastic component enables the trolley to adapt to external forces and maintain stable contact with the cable, transforming a static rigid structure into a dynamic system that can respond to varying conditions without increasing overall structural complexity
Solution Approach 2:
The trolley is divided into distinct functional modules: a slider for cable contact, an elastic module with spring for shock absorption, and a flexible film coupling member for film attachment. This segmentation allows each component to perform its specific function optimally while maintaining overall system simplicity and reliability
2Reliability
If the trolley is anchored firmly on the plate to prevent oscillation, then the stability is improved, but the trolley cannot adapt to external impacts and may break away from the cable
Solution Approach 1:
The elastic module changes the contact parameters between the trolley and cable by introducing elastic deformation through the spring. This allows the contact pressure and position to dynamically adjust in response to external forces, maintaining stable anchoring while adapting to varying load conditions and preventing breakaway
3Manufacturing precision
If a rigid structure is used for the trolley to maintain stability, then the manufacturing precision is improved, but the structure cannot buffer external forces and may cause damage to the flexible film
Solution Approach 1:
The elastic module with spring is pre-installed within the slider to provide cushioning before external impacts occur. This beforehand cushioning mechanism absorbs and mitigates external forces before they can reach the flexible film, protecting the film from damage while maintaining the precision of the rigid structural 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
The system ensures stable movement and prevents breakaway of trolleys from cables by effectively buffering external forces, maintaining structural stability and durability of the flexible film.
Implementation Method 1
an elastic block 10 including a spring (18) therein and moving under an elastic force of the spring by a predetermined distance in a vertical direction
Implementation Method 2
a spring 18 inserted into the block hole while enclosing the support
Data Source
AI summary
Provided is a breakaway-prevent trolley system for a flexible retractable structure, including a plate that supports a cable, and a trolley that is movable on the cable and folds or unfolds a flexible film. The trolley includes: a slider movable along the cable; a flexible film coupling member provided under the slider and coupled to the flexible film; an elastic module (E) provided inside the slider. The elastic module includes: an elastic block including a spring therein and moving under an elastic force of the spring by a predetermined distance in a vertical direction; and an upper support plate that supports the elastic block from above, a side support-plate that supports the elastic block from a side, and a lower support plate that supports the elastic block from below, and a lower surface of the elastic block vertically movable while in contact with an upper surface of the plate.