Tool for Live Disassembly of Bird Repellers on Power Lines

The problem

Bird repellers installed on power lines require regular maintenance, including removal for cleaning or replacement. Traditional methods often necessitate de-energizing the line, which disrupts power supply, or using complex, heavy machinery that is difficult to maneuver in tight spaces. Manual access is risky and physically demanding, especially when dealing with tight bolts and awkward angles. There is a need for a lightweight, manual tool that allows technicians to safely and efficiently install and remove these devices while the line remains energized, minimizing downtime and physical strain.

The solution

The tool integrates three primary mechanical systems to address these challenges:

1. Horizontal Positioning: A movable screw rod (4) threaded through a rear plate (2) and front baffle (3) drives a movable slider (5). This slider moves back and forth within a movable groove (7), adjusting the tool’s reach horizontally.
2. Vertical Lifting and Tightening: An operating rod (16) with a rotary handle (30) uses a bevel gear transmission (14, 17) to convert rotation into vertical movement. When positioned below, rotating the handle lifts the tool; when positioned above, it engages a gearbox (20) to drive two driving sleeves (22) that simultaneously tighten or loosen the two mounting bolts of the repeller.
3. Quick Connection: A butt joint plug board (11) and fixed insert piece (12) create a detachable interface. The tool can be quickly attached to or detached from the repeller, allowing the technician to move between positions without fully disassembling the tool.

Who it is for

• Power Utility Companies: Teams responsible for maintaining overhead distribution lines who need efficient, manual solutions for accessory upkeep.
• Line Maintenance Contractors: Specialized firms performing scheduled inspections and repairs on energized infrastructure.
• Safety Equipment Suppliers: Distributors offering niche tools for high-risk electrical environments.
• Industrial Hardware Brands: Manufacturers looking to expand their portfolio into specialized utility maintenance equipment.

How it works

The main parts

Operating Steps

1. Positioning: Grip the hand bracket (28) and align the tool with the bird repeller. Use the movable screw (4) to adjust the horizontal distance if needed.
2. Attachment: Lift the tool so the butt joint plug board (11) connects to the fixed insert piece (12) on the repeller. The connecting clamp ring (13) secures the link.
3. Lifting: Rotate the handle (30) to engage the bevel gears (14, 17), lifting the repeller slightly to relieve tension on its bolts.
4. Tightening/Loosening: Move the operating rod (16) up to engage the driving sleeves (22) with the repeller’s bolts. Rotate the handle to tighten or loosen both bolts simultaneously via the internal gear train.
5. Detachment: Lower the tool to separate the plug board from the insert, then reposition for the next task.

Applications

Overhead Distribution Lines

Technicians use the tool to replace damaged bird repellers on medium-voltage lines without cutting power, ensuring continuous service delivery.

Substation Insulators

Maintenance crews apply the tool to clean or swap repellers mounted on substation insulator strings, where space is limited and precision is required.

Rural Power Networks

Field workers in remote areas benefit from the tool’s portability and manual operation, which does not require external power sources or heavy vehicles.

Industrial Plant Wiring

Electrical teams maintain bird deterrents on factory overhead cables, using the tool to minimize downtime during production shifts.

Where it is less suitable

• High-Voltage Transmission Towers: The tool is designed for distribution-level equipment; larger towers may require robotic or crane-assisted maintenance due to scale and height.
• Non-Standard Bolt Patterns: It assumes specific bolt configurations common in standard bird repellers; custom hardware may need adapter modifications.
• Confined Indoor Spaces: The length of the operating rod and handle makes it cumbersome in tight indoor switchgear cabinets compared to open-air line work.