Carrier Board Support Structure for Uniform Steel Cable Clamping
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Solution Overview
Problem
Conventional carrier board hanging devices using single-point threaded fastening elements face issues with insufficient fastening force, damage to steel cables or support bars, irregularity of the cable, and safety concerns due to single-point loading, leading to instability and potential damage.
Innovation Solution
The introduction of a force-application piece with a centrally recessed space and slanting lead-in faces, combined with a threaded fastening element, provides a uniform and increased contact area for secure fastening, preventing damage and ensuring stability by distributing force evenly and maintaining cable regularity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-point threaded fastening element is used to secure the carrier board, then the device structure is simple, but the fastening force is insufficient and safety is compromised
Solution Approach 1:
The fastening function is segmented into two distinct components: the threaded fastening element for initial attachment and the force-application piece for load distribution. This segmentation allows each component to specialize in its function, with the force-application piece featuring a widened portion that distributes fastening force across multiple contact points on the steel cable, thereby improving reliability without significantly increasing overall device complexity
Solution Approach 2:
The force-application piece acts as an intermediary component between the threaded fastening element and the steel cable. It receives the concentrated force from the fastening element and redistributes it across a broader area of the cable through its widened portion, preventing stress concentration and improving fastening reliability while maintaining structural simplicity
2Device complexity
If a single-point threaded fastening element is used, then the device structure is simple, but damage to the steel cable surface occurs
Solution Approach 1:
The force-application piece is segmented into a body portion and a widened portion, where the widened portion specifically contacts the steel cable. This segmentation allows the load-bearing function to be separated from the cable-contact function, enabling the widened portion to distribute pressure and prevent surface damage while the body portion maintains connection to the fastening element
Solution Approach 2:
The cross-sectional area of the force-application piece is changed along its length, with the widened portion having a larger cross-section that directly contacts the steel cable. This parameter change distributes the contact pressure over a larger area, reducing stress concentration and preventing damage to the cable surface while maintaining structural simplicity
3Device complexity
If a single-point threaded fastening element is used, then the device structure is simple, but irregularity of the steel cable occurs
Solution Approach 1:
The force-application piece is segmented with a widened portion that spans across the steel cable, creating multiple contact points rather than a single point. This segmentation distributes the fastening force along the cable length, preventing localized deformation and maintaining cable regularity while keeping the overall device structure simple
Solution Approach 2:
The force-application piece extends in the longitudinal dimension of the steel cable through its widened portion, transitioning from a point contact (zero-dimensional) to a line or area contact (one or two-dimensional). This dimensional change distributes the fastening force along the cable length, preventing irregularity and maintaining cable stability
Data Source
AI summary
The present invention provides a carrier board supporting device, and particularly an improved structure of a hardware piece for hanging and supporting a carrier board on a steel cable or a support bar. A force-application piece is additionally provided between a body and a threaded fastening element of the supporting device in order to improve the fastening force, safety of assembling, regularity of assembled support device and the steel cable, and reduction of damage to the surface of the steel cable or support bar. Thus, the supporting device of the present invention features fast installation, surface-type fastening, and separation resistance and can be used in wide applications.