Cable Clamp Spacer Structure for Torsion-Resistant Wall Fixing
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Solution Overview
Problem
Existing devices for wall-fixing elongated bodies, such as radiating coaxial cables, suffer from interference with signal emissions due to metallic components, instability under flexural and torsional stress, and the risk of accidental cable clamp opening leading to cable fall.
Innovation Solution
A device with a lattice-like structure featuring arms that act as spacers, a single screw for fixing the cable clamp to the wall, and a safety system to prevent cable weight from exerting pressure on the cable clamp lid, thereby enhancing resistance to flexural and torsional stress and preventing signal interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metallic screw is used for fixing the cable clamp to the wall, then the cable clamp can be securely attached to the wall, but signal interference occurs due to the proximity of the cable to the metallic screw
Solution Approach 1:
The harmful metallic screw is extracted and replaced with a non-metallic alternative (plastic or composite material). The fixing function is maintained through the lattice structure and arms that distribute mechanical stress, while eliminating the source of signal interference by removing the metallic component from proximity to the cable.
Solution Approach 2:
A non-metallic intermediary material (plastic or composite) is introduced to replace the metallic screw. This intermediary maintains the mechanical fixing function while being electrically non-conductive, thus preventing signal interference with the radiating cable.
2Device complexity
If the cable weight rests on the opening direction of the cable clamp lid in vertical installation, then the cable clamp structure is simplified, but accidental opening occurs creating risk of cable fall
Solution Approach 1:
The lattice structure with arms is designed to counterbalance the cable weight by distributing it across multiple support points rather than allowing it to rest on the lid opening direction. The arms extend to engage the cable and transfer its weight to the wall-mounted base, creating a counterbalancing effect that prevents accidental opening and cable fall.
Solution Approach 2:
The lattice structure provides beforehand cushioning by distributing the cable weight across multiple arms and support points before any accidental opening can occur. This redundant support system ensures that even if one arm fails, the cable remains supported, preventing sudden failure and cable fall.
3Length of stationary object
If a shaped plate acting as spacer is used for fixing the cable clamp, then the cable clamp can be positioned at a distance from the wall, but the structure offers extremely low resistance to flexural and torsional stress
Solution Approach 1:
The lattice structure is constructed from composite materials or strategically positioned arms that provide both the necessary spacing from the wall and high resistance to flexural and torsional stress. The multi-armed lattice design creates a rigid structure that maintains cable positioning while withstanding environmental forces such as air pressure during train passage.
Solution Approach 2:
The lattice structure transitions from a simple planar plate to a three-dimensional multi-armed configuration. This dimensional change provides both the required spacing from the wall and enhanced structural rigidity, as the arms extend in multiple directions to resist flexural and torsional stresses from various directions.
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A device for the wall-fixing of elongated bodies, in particular radiating coaxial cables, of the type equipped with a spacer provided with a cable clamp (12) equipped with a lid (13) for supporting an elongated body (3) in a suspended position onto a wall (6,14). The spacer of the device of the invention has a structure composed of two arms (15a, 15b), whose end (17a, 17b) facing said wall (6, 14) is provided with a corresponding base (18), whereas the opposite end of said arms (15a, 15b) carries a base (16) for fixing to said cable clamp (12). With respect to the known wall-fixing devices of radiating coaxial cables, that according to the invention offers the advantage of having an improved resistance to flexural and torsional stress, also preventing interferences with the metallic part of the wall-fixing system.