Insulating Clamp Stick With Double Pawl Coupling for Hot-Line Work
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Solution Overview
Problem
Conventional tools for indirect hot-line work are outdated and not suitable for modern high-voltage distribution line operations, posing safety risks and inefficiencies in performing complex tasks without interrupting electricity supply.
Innovation Solution
An electrically insulating rotary grip-all clamp stick with a double pawl operation unit utilizing a rack and pinion gear mechanism, allowing for safe and convenient operation by minimizing the length of the operation unit, enabling easy coupling and operation of tip tools for tasks like removing bind wires and foreign substances from ultra-high-voltage distribution lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional tools are used for indirect hot-line work, then workers can perform tasks on high-voltage distribution lines, but safety risks increase and work efficiency decreases due to outdated tool design
Solution Approach 1:
The clamp stick is divided into multiple functional segments: an insulating rod for electrical isolation, a holder part for tool mounting, and a double pawl operation unit for secure tool coupling. This segmentation allows each component to be optimized independently for safety and functionality, resolving the contradiction between safety requirements and design complexity.
2Reliability
If the double pawl operation unit is made longer to accommodate rack and pinion gear, then secure tool coupling is achieved, but worker operability and safety are reduced
Solution Approach 1:
The rack and pinion gear mechanism is nested within the hollow interior of the operation knob, allowing the double pawl operation unit to maintain a compact external dimensions while accommodating the necessary mechanical components for secure tool coupling. This nesting resolves the contradiction between coupling security and worker operability.
3Productivity
If direct hot-line work is performed to reduce work time, then productivity increases, but the risk of electric shock and casualties increases
Solution Approach 1:
The clamp stick serves as an intermediary tool that allows workers to perform hot-line tasks indirectly without direct contact with high-voltage conductors. The insulating rod acts as a mediator between the worker and the electrical environment, enabling productivity improvement while eliminating electric shock risks associated with direct contact work.
4Reliability
If outdated tools are used for indirect hot-line work, then equipment cost is reduced, but safety is compromised due to unsuitability for modern high-voltage operations
Solution Approach 1:
The clamp stick design incorporates universal features including a standardized holder part that can accommodate various tip tools, a double pawl operation unit that provides secure coupling for different tool types, and an insulating rod suitable for modern high-voltage distribution lines. This multi-functionality allows the tool to address contemporary safety requirements while maintaining operational versatility.
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 clamp stick facilitates safe and efficient performance of indirect hot-line work by allowing workers to securely hold and operate tools, reducing the risk of accidents and improving work efficiency on complex high-voltage distribution lines without interrupting electricity supply.
Implementation Method 1
the double pawl operation unit is constituted by using a rack and pinion gear
Implementation Method 2
an insulating rod part (110) connected to a rear side of the holder part (167)
Data Source
AI summary
An electrically insulating rotary grip-all clamp stick having a double pawl operation unit for indirect hot-line work, and a method for operating an indirect hot-line tool mechanism using the clamp stick. The clamp stick is configured such that the operation unit is constituted by using a rack and a pinion gear so that a worker can safely and conveniently perform hot-line work or uninterruptible power work. A holder part and a hook assembly are operated by the operation unit, so that a tip tool can be solidly coupled to the holder part. Since a length of the operation unit is minimized, the worker can easily hold and operate the tip tool when the worker operates the tip tool, or performs work for removing a bind wire of a rotary wound-drawn type ultra-high-voltage distribution line or removing foreign substances including a layer coating an electric wire.