Synchronized Locknut Fastening Device Preventing Backboard Distortion
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Solution Overview
Problem
Existing fastening methods for locknuts on communication devices, such as set-top boxes, result in uneven locking forces due to the sequential and angled fastening, causing distortion of the backboard.
Innovation Solution
A fastening device comprising a pedestal, fixing blocks, rotating elements, gear wheels, and calibrating tabs that allows simultaneous and synchronized fastening of locknuts, ensuring equal angles and uniform locking forces to prevent backboard distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If locknuts are fastened one by one sequentially, then the fastening process is simple to operate, but the locking forces are uneven and the backboard becomes distorted
Solution Approach 1:
The patent combines multiple fastening operations into a single synchronized action. The fastening device integrates multiple pressing elements that simultaneously fasten locknuts at different positions, merging separate sequential operations into one unified operation that maintains backboard flatness while remaining easy to operate.
Solution Approach 2:
The patent employs a linkage mechanism with rotating elements that dynamically coordinate the movement of multiple pressing elements. As the operator rotates the handle, the linkage system dynamically adjusts and synchronizes the pressing force distribution, ensuring uniform locking forces are applied simultaneously to multiple locknuts.
2Ease of operation
If locknuts are fastened at different angles sequentially, then the fastening process is easier to perform, but the locking forces become uneven
Solution Approach 1:
The linkage mechanism with rotating elements dynamically synchronizes the pressing forces applied to multiple locknuts. When the operator rotates the handle, the mechanical linkage ensures that pressing elements at different angles and positions simultaneously apply uniform locking forces, eliminating the force unevenness caused by sequential fastening at different angles.
Solution Approach 2:
The device incorporates a synchronized linkage system that provides mechanical feedback between pressing elements. The rotation of one element automatically adjusts and coordinates the position and force of other pressing elements, ensuring uniform locking forces are achieved through the interdependent motion of the linkage components.
3Manufacturing precision
If multiple locknuts are fastened simultaneously, then the backboard remains undistorted, but the fastening device structure becomes more complex
Solution Approach 1:
The fastening device is segmented into modular components including a handle, linkage mechanism with rotating elements, and multiple pressing elements. Each component performs a specific function, and the segmentation allows the complex simultaneous fastening operation to be achieved through coordinated simple motions of individual segments, making the overall device manageable despite its complexity.
Solution Approach 2:
The linkage mechanism serves multiple functions: it synchronizes the motion of pressing elements, distributes locking forces uniformly, and coordinates fastening operations at different angles simultaneously. This multi-functionality reduces the need for separate mechanisms for each function, managing device complexity while achieving simultaneous fastening.
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 the simultaneous and synchronized fastening of locknuts, maintaining the integrity of the backboard by applying uniform locking forces, thus preventing distortion during the fastening process.
Implementation Method 1
a pair of first gear wheels (50) and a second gear wheel (60)... the second gear wheel (60) is attached to the pedestal (20) and synchronously engages with the pair of first gear wheels (50)
Data Source
AI summary
A fastening device used to fasten two locknuts to an object simultaneously includes a pedestal defining a first sliding groove, a pair of fixing blocks, a pair of rotating elements, a pair of first gear wheels and a second gear wheel. The fixing blocks are received and fixed in the first sliding groove. Each of the fixing blocks defines a through hole. Each of the rotating elements includes an operating portion and a shaft portion received in the through hole. Each of the pair of gear wheels includes a gear body attached to corresponding one of the shaft portions respectively and a sleeve protruding from the gear body and snugly receiving one of the locknuts. The second gear wheel is attached to the pedestal and engaging the pair of first gear wheels to achieve synchronous movements of the pair of first gear wheels.