Distribution Trunking Hooks for Secure Cable Clamp Retention
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Solution Overview
Problem
Existing distribution trunking systems face difficulties in installer-friendly clamping operations and provide inadequate mechanical resistance against the clamping collar, leading to increased manufacturing and installation costs.
Innovation Solution
A distribution trunking system with a base featuring a pair of hooks projecting from the wall, allowing for easy insertion and secure retention of the clamping collar, which are strategically arranged to facilitate easy installation and provide robust mechanical resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a receiving accessory is attached to the base of the chute to receive the clamp, then the clamp can be retained, but the threading operation becomes difficult to implement by an installer on site and manufacturing cost increases
Solution Approach 1:
The receiving device is merged with the base of the chute by forming it as an integral part during extrusion, eliminating the need for separate accessories and simplifying the installation operation while maintaining reliable clamp retention
Solution Approach 2:
The base of the chute is designed to form its own receiving device through the extrusion process, making the structure self-sufficient and eliminating the need for additional components or complex assembly operations
2Device complexity
If simple hooks are used to receive the clamping collar, then the structure is simple, but the mechanical resistance against tearing of the collar is insufficient
Solution Approach 1:
The receiving device is segmented into two separate hooks instead of a single hook, distributing the mechanical load and providing enhanced resistance against tearing while maintaining relative structural simplicity
Solution Approach 2:
The hooks are designed with curved profiles that conform to the shape of the clamping collar, increasing surface contact area and improving mechanical resistance against tearing forces
3Reliability
If hooks are oriented in a specific direction to prevent collar escape, then the collar is retained securely, but the installer must account for orientation which complicates positioning
Solution Approach 1:
The two hooks are positioned asymmetrically at different locations on the base, creating a receiving device that accepts the clamping collar from multiple orientations and eliminating the need for precise positioning by the installer
Solution Approach 2:
The hooks are positioned at different locations rather than being aligned in a single direction, adding spatial distribution as a new dimension to the receiving device design and enabling multi-orientation acceptance
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to a distribution trunking comprising at least one receiving device (20) for a cable clamp (1) of conductors or cables running in the base (10) of said trunking. According to the invention, the receiving device comprises, projecting from a wall (11) of said base, a pair of hooks (21, 22) opening in opposite directions, defining a housing for receiving said cable clamp.