Wall Suspension Rack With Elastic Locking And Angle Adjustment
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Solution Overview
Problem
Conventional bicycle wall racks are costly, complex, and inconvenient to operate due to the need for additional positioning devices to prevent falling and lack adjustable angle capabilities, leading to increased production costs and assembly difficulties.
Innovation Solution
A wall suspension rack design featuring an upper and lower wall seat, an upright post with sliding and positioning units, and elastic locking mechanisms that allow the lower suspension frame to be easily folded or expanded without additional locking, enabling horizontal adjustment of the bicycle's angle of placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a positioning device is added to prevent the bicycle rack from falling, then the rack stability is improved, but the device complexity and cost increase
Solution Approach 1:
The positioning function is merged with the folding mechanism itself. The positioning recesses and positioning protrusions are integrated into the frame structure, eliminating the need for separate positioning devices. When the frame folds, the positioning protrusion automatically engages with the positioning recess to maintain stability without requiring additional components.
Solution Approach 2:
The rack performs self-positioning through its own structural features. The positioning protrusion on the frame automatically engages with the positioning recess during the folding motion, allowing the system to self-regulate its position without external positioning devices or additional user intervention.
2Reliability
If multiple positioning devices and locking mechanisms are added, then the rack reliability is improved, but the ease of operation deteriorates
Solution Approach 1:
The locking function is merged with the folding mechanism. The elastic locking piece and locking groove work automatically during the folding motion, combining the reliability of a locked position with the simplicity of a single folding action. Users only need to fold the frame, and the locking occurs automatically without separate locking steps.
Solution Approach 2:
The locking mechanism is self-actuating through the folding motion itself. The elastic locking piece automatically engages with the locking groove when the frame reaches the folded position, and the positioning protrusion engages with the positioning recess, creating a self-locking system that requires no additional user actions.
3Ease of manufacture
If the rack structure is made fixed and non-adjustable, then the manufacturing cost is reduced, but the adaptability deteriorates
Solution Approach 1:
The rack transitions from a fixed structure to a dynamic, adjustable structure. The frame can be folded between horizontal and vertical positions, and the upright post can rotate to adjust the hanging angle. This dynamic capability allows the same structure to adapt to different storage needs and spatial configurations without requiring multiple different rack designs.
4Reliability
If the rack is designed with many parts for stability and locking, then the reliability is improved, but the ease of manufacture deteriorates
Solution Approach 1:
Multiple functions are merged into integrated structural features. The positioning recesses and locking grooves are formed as integral parts of the frame and support structure rather than separate components. The elastic locking piece is a simple component that works with these integrated features, reducing the total number of parts while maintaining stability and locking functionality.
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
Simplifies the operation of the rack by eliminating the need for additional locking mechanisms, reduces production costs through fewer parts, and allows for adjustable angle placement to accommodate different bicycle positions, enhancing user convenience and assembly ease.
Implementation Method 1
The elastic pin is moved along the imaginary arc line of the positioning recesses. When the upright post is rotated by the external force, the elastic pin is moved to align with and detachably extend into one of the positioning recesses.
Implementation Method 2
The upper spring is biased between the slide and the upper pivot jaw. The upper spring provides an elastic restoring force to the upper pivot jaw.
Implementation Method 3
The lower spring is biased between the slide and the lower pivot jaw. The lower spring provides an elastic restoring force to the lower pivot jaw.
Implementation Method 4
The upright post is pivotally connected with the upper wall seat and the lower wall seat. The upright post is driven and rotated by an external force.
Data Source
AI summary
A wall suspension rack includes an upper wall seat secured to a wall, a lower wall seat secured to the wall, an upright post mounted between the upper wall seat and the lower wall seat and having an upper block and a lower block, a sliding unit mounted on the upright post and including an upper locking groove and a lower locking groove, a positioning unit mounted on the upright post, an upper protective frame pivotally connected with the sliding unit, and a lower suspension frame pivotally connected with the positioning unit and the upper protective frame. Thus, when the lower suspension frame is moved to the folded position, the upper block is locked in the upper locking groove, and when the lower suspension frame is moved to the expanded position, the lower block is locked in the lower locking groove.