Sunshade Umbrella Crank Structure for Easier Height-Adjusted Operation
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Solution Overview
Problem
Existing sunshade umbrellas face challenges in convenient retraction and deployment, particularly for users of varying heights, and require improved operational convenience and user-friendly design to accommodate different user heights and reduce effort during handle movement.
Innovation Solution
The sunshade umbrella features a hand-crank mechanism with a pull rope wound around a rope reel, separate handle and hand-crank portion, telescopic lower vertical rod, and adjustable handle position, along with motors and controllers for automated deployment and tilt adjustment, enhancing ease of use and accommodating user height variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the handle and hand-crank portion are integrated with the cord retraction device housed inside, then the structure is compact, but it becomes inconvenient to retract or deploy the umbrella
Solution Approach 1:
The patent divides the handle into two separate functional parts: a hand-crank portion for cord retraction and a handle portion for positioning. This segmentation allows each component to be optimized for its specific function, improving operational convenience while maintaining structural compactness through their coordinated design.
2Adaptability or versatility
If the handle is pushed to the highest point of the umbrella pole and locked, then the canopy tilt angle is adjusted, but shorter users struggle to reach the handle at this elevated position
Solution Approach 1:
The patent makes the handle position adjustable along the umbrella pole through a telescopic structure with locking mechanisms. This dynamic positioning allows the handle to be moved to different heights, enabling shorter users to access the handle at lower positions while maintaining the ability to achieve various canopy tilt angles.
3Device complexity
If the pull rope passes through the handle, then the hand-crank portion can be positioned away from the umbrella frame, but this increases resistance during handle movement requiring greater user effort
Solution Approach 1:
The patent extracts the cord retraction function into a separate hand-crank portion that is mechanically coupled to the handle but positioned independently. The pull rope is routed through guide structures that reduce friction, separating the retraction mechanism from the handle body and minimizing resistance during operation.
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
The design facilitates easier retraction and deployment, reduces operational effort, and provides automated control for users of all heights, improving usability and convenience.
Implementation Method 1
a rope reel is disposed inside the hand-crank portion; and the handle is disposed above the hand-crank portion, and a crank is disposed on the hand-crank portion
Implementation Method 2
The lower vertical rod includes a plurality of sleeve sections forming a telescopic structure
Implementation Method 3
rotary self-locking buckles are disposed at junctions between the plurality of sleeve sections, and the rotary self-locking buckles lock telescopic positions of the plurality of sleeve sections by rotation
Implementation Method 4
a first spring is disposed between the hand-press portion and the handle
Data Source
AI summary
Provided is a sunshade umbrella, including an umbrella pole, an umbrella frame, and a base, wherein the umbrella pole is disposed on the base, and the umbrella frame is connected to the umbrella pole. The umbrella pole is provided with a hand-crank portion, a pull rope is wound around the hand-crank portion, and the hand-crank portion drives the umbrella frame to deploy or retract by retracting or releasing the pull rope.