Insulator With Manual Winged Screw Cable Clamp
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Solution Overview
Problem
Existing overhead power line assembly methods require multiple tools and are challenging in tall structures, especially when securing medium voltage cables, as they need to maintain position during assembly and tightening, which can be difficult and risky.
Innovation Solution
An insulator with a U-shaped cable support and a manual winged screw tightening mechanism that allows for secure attachment to a supporting structure, reducing the need for tools and minimizing risk during assembly by enabling cable sliding until the latch is tightened.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional cable support methods are used, then cables can be secured, but multiple tools are required and assembly becomes difficult in tall structures
Solution Approach 1:
The patent combines the cable support structure, clamping mechanism, and tightening system into a single integrated insulator assembly. The cable support is formed as one piece with the insulator body, and the clamping mechanism with winged screws is integrated into the support structure, eliminating the need for separate tools and simplifying assembly operations at height
Solution Approach 2:
The winged screws enable the operator to directly tighten the clamping mechanism by hand without requiring additional tools. The integrated design allows the assembly to be self-sufficient, with all necessary components and fastening mechanisms included in the single insulator unit, enabling workers to complete assembly tasks independently at elevated locations
2Productivity
If cables are pulled through during assembly, then final positioning is achieved, but maintaining cable position during assembly becomes difficult
Solution Approach 1:
The cable support features a dynamic design where the clamping mechanism can transition between open and closed states. During assembly, the support remains open to allow cable insertion and positioning, then closes securely when the winged screws are tightened, maintaining cable position throughout the assembly process while enabling final positioning through pulling
Solution Approach 2:
The U-shaped cable support is pre-configured with opening and closing capabilities before assembly begins. This preliminary design allows the cable to be inserted and positioned while the support is open, then secures the cable in its final position when the support is closed and tightened, ensuring position stability throughout the entire assembly sequence
3Reliability
If manual tightening mechanism is used, then tool requirements are reduced, then assembly safety at height is improved
Solution Approach 1:
The winged screws provide a self-service tightening mechanism that can be operated directly by hand without requiring additional tools. This manual operation capability enhances safety at height by reducing the number of tools that need to be transported and handled in difficult-to-reach locations, while the integrated design keeps the overall mechanism relatively simple despite the manual operation requirement
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 insulator securely holds medium voltage cables in place during assembly, reduces tool requirements, and minimizes the risk of parts dropping from high altitudes by allowing manual tightening and integrated design, enhancing the assembly process.
Implementation Method 1
The tightening means may comprise a winged screw, enabling fully manual tightening
Data Source
Figure 1a
Figure 1b
Figure 2a
AI summary
An insulator for a power line cable, wherein a cable support (110) comprises a recess (111) having a bottom (120), a first side wall (121) and a second side wall (122), an opening between the first side wall (121) and the second side wall (122) configured to receive a power line cable sideways. A cable clamp (140) retains the power line cable in the recess (111), comprising a tightening means (141) for tightening the cable clamp (140) to the power line cable. The tightening means (141) are pivotally connected to the insulator body (100). The cable clamp (140) comprises a latch (144) connected to the tightening means (141), the recess (111) having a first groove (151) on the first side wall (121) and a second groove (152) on the second side wall (122), configured to receive the latch (144) over the power line cable. The latch (144) extends over the first groove (151) and the second groove (152). An outer surface of the second side wall (122) comprises a slot (160) for retaining the latch (144).