Umbrella Lifting Device with Rotating Movable Members
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Solution Overview
Problem
Conventional large-sized umbrellas are cumbersome due to their weight and volume, making them difficult to move or reposition.
Innovation Solution
A lifting device comprising a base with fixing seats, movable members, a pressing module, a threaded rod, and a drive handle, allowing for easy manipulation and movement by rotating the handle to lower and lift the device, enabling 360° rotation of the movable members for multi-directional movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a conventional fixed umbrella of larger size is used, then the shading area is increased, but the weight and volume increase making it difficult to move
Solution Approach 1:
The umbrella structure is segmented into a base unit and multiple movable members (first, second, third movable members) that can be independently positioned. This segmentation allows the large shading area to be divided into controllable sections, enabling partial movement or repositioning of specific segments without moving the entire umbrella structure, thus improving ease of operation while maintaining large shading area.
Solution Approach 2:
The patent introduces movable members with adjustable positions and a pressing module that can dynamically change the configuration of the umbrella. The movable members can be pressed against the skeleton to change the shape and orientation of the shading surface, allowing the umbrella to adapt its form and position dynamically, making it easier to move and reposition while maintaining large shading area.
2Stability of the object's composition
If a conventional fixed umbrella is used, then the structural stability is maintained, but the ability to change position and orientation is limited
Solution Approach 1:
The umbrella incorporates movable members that can be dynamically adjusted while maintaining structural stability through the pressing module. The pressing module applies controlled force to the movable members, allowing them to change position and orientation in a controlled manner, thus providing adaptability while preserving structural integrity during transitions.
Solution Approach 2:
The pressing module acts as an intermediary between the user's input force and the movable members. It distributes and controls the force applied to the movable members, enabling smooth transitions and position changes while maintaining structural stability. The intermediary mechanism ensures that structural changes occur in a controlled, stable manner rather than through abrupt movements.
3Ease of operation
If a lifting device with multiple movable members is added, then the ease of movement is improved, but the device complexity increases
Solution Approach 1:
The pressing module combines multiple pressing rods into a single integrated unit that can simultaneously control multiple movable members. By merging the control mechanism, the patent reduces the number of separate actuators needed, thereby decreasing device complexity while maintaining the ability to move and reposition the umbrella easily.
Solution Approach 2:
The pressing module serves multiple functions: it can press different movable members at different positions, adjust the shape of the shading surface, and control the orientation of the umbrella. This multi-functionality allows a single device to perform multiple operations that would otherwise require separate mechanisms, reducing overall device complexity while improving ease of movement.
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
Facilitates easy and convenient relocation of the umbrella by allowing the user to move the device in multiple directions and angles while simplifying the construction and reducing fabrication costs.
Implementation Method 1
a threaded rod mounted on the base and connected with the pressing module, and a drive handle connected with the threaded rod
Data Source
AI summary
A lifting device for an umbrella includes a base, a plurality of fixing seats secured on the base, a plurality of movable members each movably mounted in the respective fixing seat, a pressing module movably mounted on the base and pressing the movable members, a threaded rod mounted on the base and connected with the pressing module, and a drive handle connected with the threaded rod. The pressing module includes a driven rod and two pressing rods. Each of the pressing rods is provided with a straight pressing portion that is movable to press the respective movable member and at least one recessed release portion that is movable to receive the respective movable member. Thus, each of the movable members is rotatable freely so that the lifting device is moved on the ground easily.