Base Station Antenna Mounting with Self-Locking Tilt Adjustment

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Solution Overview

Problem

Existing base station antennas have limited mechanical tilt adjustments, typically allowing only discrete adjustments in integer degrees, which is insufficient for precise positioning, and there is a risk of uncontrolled tipping due to gravity during adjustment.

Innovation Solution

A mounting device with a self-locking worm drive and spiral gear mechanism that allows continuous adjustment of the mechanical tilt of the base station antenna, ensuring stability through self-locking mechanisms to prevent tipping.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a self-locking worm drive mechanism is used, then positioning precision and stability are improved, but device complexity increases

Engineering Contradiction:
Improvemechanical tilt adjustment precisionVSAvoidmounting device structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces a self-locking worm drive mechanism as an intermediary between the adjustment input and the antenna positioning system. This worm drive acts as a mediator that provides both continuous adjustment capability and self-locking function, resolving the contradiction by adding a specialized transmission component that enables precise positioning while maintaining structural simplicity through its inherent self-locking property.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If discrete adjustment values are used, then device complexity is reduced, but positioning precision deteriorates

Engineering Contradiction:
Improveadjustment mechanismVSAvoidmechanical tilt positioning
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent transitions from discrete, fixed adjustment positions to a dynamic continuous adjustment mechanism. The worm drive enables smooth, continuous variation of the mechanical tilt angle rather than jumping between predetermined discrete positions. This dynamic adjustment capability allows precise positioning at any angle within the adjustment range, eliminating the limitation of integer-degree discrete values while keeping the mechanical structure relatively simple.

Inventive Principle:
Principle #15Dynamics

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 continuous mechanical tilt adjustment of base station antennas, enhancing positioning precision while preventing unintended tilting under gravity.

Implementation Method 1

due to the self-locking nature of the self-locking worm, the self-locking worm drive can actuate the spiral gear, and the spiral gear cannot actuate the self-locking worm, so it can reliably prevent uncontrolled tipping of the base station antenna caused by its own gravity

Methodology Applied
Scientific EffectSelf-locking mechanism: Friction

Data Source

PatentUS12438264B2Mounting device for base station antenna and base station antenna system
Publication Date: 2025.10.07 OUTDOOR WIRELESS NETWORKS LLC
  • US12438264B2 patent drawing
  • US12438264B2 patent drawing
  • US12438264B2 patent drawing

AI summary

The present application relates to a mounting device for a base station antenna. The mounting device is configured to mount a base station antenna to a holding pole, the mounting device includes an adjustable movable component, and a status of the movable component is related to a mechanical tilt of the base station antenna. The mounting device further includes a self-locking worm drive and a spiral gear engaged with the self-locking worm, and the spiral gear coupled with the movable component, where, by actuating the self-locking worm, the spiral gear is capable of being rotated, and thus the status of the movable component is capable of being adjusted. The present application also relates to a base station antenna system that includes a base station antenna, a lower mounting device, and an upper mounting device, and the upper mounting device is a mounting device for a base station antenna as described.