Elastic Latching Rod for Power Line Clamp Pin Retention

Solution Overview

Problem

Conventional fastening structures for power line and insulator clamps on telegraph poles are inefficient and unstable due to difficulty in accurately separating and reattaching the latching pin while wearing thick insulating gloves, leading to delays and potential loss of small components during maintenance and repair.

Innovation Solution

A fastening structure incorporating an elastic latching rod mounted on a pin that passes through aligned through-holes of the clamp and insulator, allowing for quick and stable fastening and separation by elastic bending and restoration, preventing the pin from being separated without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional pin and latching pin fastening structure is used, then the clamp and insulator can be securely fastened, but the separation and reattachment process becomes time-consuming and difficult when wearing thick insulating gloves

Engineering Contradiction:

Improveease of fastening and separationVSAvoidwork time for separation and reattachment

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The elastic latching rod automatically engages with the pin through elastic bending and restoration, eliminating the need for manual manipulation of small components. The structure serves itself by using the elastic property of the latching rod to automatically secure the pin in place without requiring precise manual intervention

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The elastic latching rod changes its physical state through elastic bending and restoration. By utilizing the elastic parameter change of the latching rod, the system transforms from requiring precise manual manipulation to allowing quick automatic engagement and separation through elastic deformation

Inventive Principle:

Principle #35Parameter changes

2Device complexity

If a small-sized latching pin is used, then the fastening structure remains compact, but the latching pin may be lost during work causing serious problems

Engineering Contradiction:

Improvecompactness of fastening structureVSAvoidrisk of losing latching pin

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The elastic latching rod and pin are merged into an integrated fastening system where the latching rod is mounted on the pin and works together with it. This combination ensures that the small latching component cannot be lost separately as it is structurally integrated with the pin

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The elastic latching rod automatically engages with the pin through elastic bending and restoration, eliminating the need for manual manipulation of small components. The structure serves itself by using the elastic property of the latching rod to automatically secure the pin in place without requiring precise manual intervention

Inventive Principle:

Principle #25Self-service

3Object-affected harmful factors

If thick insulating gloves are worn for safety, then electrical shock protection is improved, but the ability to accurately separate and fit small latching pins deteriorates

Engineering Contradiction:

Improveprotection from electrical shockVSAvoidprecision of latching pin manipulation

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The elastic latching rod automatically engages with the pin through elastic bending and restoration, eliminating the need for manual manipulation of small components. The structure serves itself by using the elastic property of the latching rod to automatically secure the pin in place without requiring precise manual intervention

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The elastic latching rod changes its physical state through elastic bending and restoration. By utilizing the elastic parameter change of the latching rod, the system transforms from requiring precise manual manipulation to allowing quick automatic engagement and separation through elastic deformation

Inventive Principle:

Principle #35Parameter changes

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 elastic latching rod enables safe and efficient fastening and separation of the clamp and insulator, improving work efficiency and stability during power line maintenance and repair by eliminating the need for precise manual manipulation of small components.

Implementation Method 1

an elastic latching rod mounted on the pin and configured to be elastically bent to pass through each of the through-holes and to be restored in its original shape

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS11251594B2Fastening structure of clamp for supporting power line and insulator

Publication Date: 2022.02.15 PARK CHEOL WOONG

AI summary

Provided is a fastening structure of a clamp for supporting a power line and an insulator, which includes a fastening means for preventing an end of the insulator from being separated from the clamp in a state in which the end of the insulator is disposed between an arm part and an auxiliary arm part of the clamp. The fastening means includes a pin fitted to pass through through-holes of the arm part and the auxiliary arm part of the clamp and the end of the insulator and an elastic latching rod mounted on the pin and elastically curved to pass through each of the through-holes and to be restored in its original shape, thereby preventing the pin from being separated. The elastic latching rod is mounted on the pin and has the form of a coil spring where both ends of the elastic latching rod protrude from the pin.