Adjustable Saddle Tube Locking for Variable Frame Diameters
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Solution Overview
Problem
Existing electric bicycle saddle tube locking mechanisms have low applicability due to their requirement for specific frame diameters, limiting their use to frames with similar tube diameters.
Innovation Solution
A saddle tube locking device comprising a fixing mechanism, jacking mechanism, and locking mechanism that adjusts the distance between the jacking mechanism and the middle tube, allowing for locking of saddle tubes with varying diameters by using a bushing with strip-shaped openings and adjustable locking members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If annular clamp locking components are used, then locking reliability is improved, but applicability deteriorates due to higher requirements for frame diameters
Solution Approach 1:
The locking mechanism transitions from a fixed annular clamp design to a dynamic adjustable structure where the fixing mechanism can be positioned at different locations along the middle tube, and the jacking mechanism can be adjusted to different distances from the middle tube, enabling adaptation to various frame diameter configurations while maintaining locking reliability
Solution Approach 2:
The invention changes the geometric parameters of the locking system by allowing adjustable positioning of the fixing mechanism along the middle tube and adjustable distance of the jacking mechanism, enabling the same locking device to accommodate different frame and saddle tube diameter combinations
2Device complexity
If fixed-distance locking mechanisms are used, then structural simplicity is maintained, but adaptability to different frame diameters deteriorates
Solution Approach 1:
The locking device is segmented into independently adjustable components: the fixing mechanism that can be positioned at different locations, and the jacking mechanism that can be adjusted to different distances, allowing each segment to be optimized for specific frame configurations without increasing overall system complexity
Solution Approach 2:
The locking mechanism is designed with universal adaptability through adjustable fixing and jacking components, enabling a single device design to serve multiple frame diameter configurations and different electric bicycle models, thereby achieving multi-functionality without proportionally increasing device complexity
Data Source
AI summary
The present disclosure relates to the technical field of electric vehicle accessories, and specifically to a saddle tube locking device. The saddle tube locking device is configured for locking the saddle tube of an electric bicycle, including a fixing mechanism, a jacking mechanism, and a locking mechanism. The fixing mechanism is sleeved on an outer side of a middle tube of the electric bicycle, and the fixing mechanism is provided with a holding space. The holding space is in communication with the middle tube, and the jacking mechanism is arranged inside the holding space. The locking mechanism is arranged on one side of the holding space away from the middle tube and is configured to adjust the distance between the jacking mechanism and the middle tube.