Spring-Loaded Parallel Pad Clamp Connector Hot Stick Interface
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Solution Overview
Problem
There is a need for spring-loaded parallel pad clamp connectors that can be easily connected to and disconnected from overhead power distribution lines using lineman hot sticks, enhancing safety and efficiency for linemen.
Innovation Solution
A spring-loaded parallel pad clamp connector design featuring a top jaw, a bottom jaw with an eye, and springs that bias the jaws to a closed position, with a surface acting as a fulcrum for a lineman hot stick, allowing the connector to be opened and closed using the hot stick for installation and removal on conductors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spring-loaded parallel pad clamp connectors are designed for traditional manual operation, then the connector structure is simple, but it cannot be safely connected to overhead power distribution lines from ground level
Solution Approach 1:
The patent introduces a hot stick as an intermediary tool that allows linemen to operate the clamp connector from ground level. The hot stick includes a handle, a fulcrum surface, and a tip that interacts with the clamp's eye and fulcrum surface, enabling remote operation without direct contact with energized components.
Solution Approach 2:
The patent adds a new dimensional aspect to the clamp connector by incorporating a fulcrum surface that works in conjunction with the hot stick. This creates a lever arm extending from the clamp body through the hot stick, allowing force application from a distant position (ground level) to translate into effective clamping force at the conductor.
2Ease of operation
If the clamp connector is designed for ground-level operation with hot stick, then safety is improved, but the operation mechanism becomes more complex
Solution Approach 1:
The spring-loaded mechanism provides self-service by automatically closing and clamping the jaws when the hot stick is removed. The springs are biased to force the jaws together, so once the hot stick releases the clamp, the connector self-actuates to the closed clamping position without requiring additional manual intervention.
Solution Approach 2:
The clamp connector transitions from a static design to a dynamic one with movable jaws that can open and close. The spring-loaded mechanism provides dynamic response, automatically adjusting the jaw position based on the presence or absence of the hot stick, making the operation more intuitive and easier to perform.
3Force
If the clamp uses spring-loaded jaws, then automatic clamping force is provided, but the mechanism requires a fulcrum and hot stick interface adding complexity
Solution Approach 1:
The fulcrum surface serves multiple functions: it acts as a pivot point for the hot stick operation, provides a leverage point for force multiplication, and defines the mechanical advantage ratio between the hot stick input force and the clamp output force. This multi-functional element justifies its inclusion despite adding structural complexity.
Solution Approach 2:
The eye of the clamp and the corresponding receptacle on the hot stick are designed with curved surfaces that facilitate smooth rotational movement during operation. The curved geometry of the eye allows the hot stick to pivot efficiently, reducing friction and wear while maintaining reliable mechanical connection throughout the opening and closing cycle.
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
Enables safe and efficient connection and disconnection of the clamp connectors to overhead power distribution lines using lineman hot sticks, providing mechanical advantage and ease of use through the leveraged force translation mechanism.
Implementation Method 1
one or more springs biasing the top and bottom jaws to a closed position
Implementation Method 2
a surface positioned a predetermined distance from the eye so that the surface acts as a fulcrum and force translation surface for a lineman hot stick
Data Source
AI summary
A spring-loaded parallel pad clamp connector is provided. The clamp includes a top jaw; a bottom jaw having an eye depending therefrom; one or more springs biasing the top and bottom jaws to a closed position; and a surface positioned a predetermined distance from the eye so that the surface acts as a fulcrum and force translation surface for a lineman hot stick.