Base Station Antenna Mounting Assembly Angle Fixation
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Solution Overview
Problem
The increasing torque from heavier antennas with added electronic components makes it difficult to maintain the angle of the antenna mounting assembly, especially under severe conditions like strong winds, and the loosened nuts are prone to falling off, causing operational issues.
Innovation Solution
The antenna mounting assembly features a guide post and guide groove system with toothed and smooth surfaces to securely fix the angle and prevent slippage, combined with a retaining clip to prevent the nut from falling off, ensuring stable angle adjustment and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the antenna weight and size are increased to add electronic components, then the functionality and signal coverage are improved, but the torque on the mounting assembly increases making angle fixation difficult
Solution Approach 1:
The mounting assembly transitions from a static friction-based angle fixation to a dynamic adjustable mechanism with movable guide posts that can engage with toothed portions at different positions, allowing the system to adapt to varying torque conditions while maintaining stable angle fixation
Solution Approach 2:
The guide groove is divided into multiple toothed portions at different positions, creating discrete engagement points that segment the continuous rotation into fixed angular positions, enabling stable angle maintenance under high torque conditions
2Ease of operation
If the nut is loosened to adjust the angle between pivoting arms, then the angle adjustment is enabled, but the nut is prone to falling off causing operational issues
Solution Approach 1:
The guide post acts as an intermediary component between the nut and the guide groove, providing lateral constraint and guidance that prevents the nut from falling off while allowing controlled loosening and tightening operations for angle adjustment
3Device complexity
If friction is used to maintain the angle between pivoting arms, then the structure is simple, but the angle fixation becomes unreliable under high torque conditions
Solution Approach 1:
The system transitions from relying on static friction to an active mechanical engagement system where the guide post can be moved to engage with toothed portions, providing positive locking that maintains reliability under high torque while keeping the overall structure relatively simple
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
This solution effectively maintains the antenna's angle under extreme conditions and prevents nut loss, enhancing operational reliability and safety by providing secure locking and easy adjustment mechanisms.
Implementation Method 1
the two pivoting arms have been designed to be maintained at a fixed angle by the friction generated by the tightening of bolts and nuts
Implementation Method 2
The guide groove includes two side walls radially opposite to each other. One side wall of the two side walls is provided with a plurality of toothed portions and the other side wall is provided with a smooth surface
Data Source
AI summary
An antenna mounting assembly of a base station antenna includes: a pole clamp configured to clamp the pole; and a first pivoting arm and a second pivoting arm, a first end portion of the first pivoting arm being pivotally connected to a radome body of the antenna, a second end portion of the second pivoting arm being pivotally connected to the pole clamp, and an opposing second end portion of the first pivoting arm being pivotally connected to an opposing first end portion of the second pivoting arm through a pivoting portion. One of the second end portion of the first pivoting arm and the first end portion of the second pivoting arm is provided with a guide post, and the other is provided with a guide groove.