Modular Ball Net Assembly with Rotating Shaft Adjustment
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Solution Overview
Problem
Traditional portable ball nets are costly due to the need for complete replacement when springs or ball net components are damaged, and they lack flexibility in size adjustment.
Innovation Solution
A modular ball net assembly with upright stands featuring a rotating shaft and extension-and-contraction grooves, allowing ball net wires to be easily retracted or extended, and a connection fastener for splicing multiple assemblies, enabling cost-effective replacement of damaged components and adjustable height and width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional elastic and retractable ball nets with springs are used, then the ball net can be portable and adjustable, but the cost is high and the entire ball net must be replaced when springs or ball net wires are damaged
Solution Approach 1:
The ball net is divided into multiple independent modules, each consisting of an upright stand, ball net wires, and connection fasteners. This segmentation allows individual modules to be replaced without affecting the entire ball net structure, reducing repair costs and complexity while maintaining portability and adjustability.
Solution Approach 2:
The spring mechanism is extracted and replaced with a rotating shaft system that uses friction and geometry to achieve retraction. This extraction eliminates the need for expensive springs while maintaining the portable and adjustable features of the ball net.
2Device complexity
If traditional ball net designs are used, then the structure is simple, but the size adjustment flexibility is limited
Solution Approach 1:
The ball net incorporates dynamic adjustment mechanisms through rotating shafts that can be manually operated to change the width and height of the ball net. This allows the structure to adapt to different size requirements while maintaining relatively simple construction through modular design.
Solution Approach 2:
The modular upright stands and connection fasteners serve multiple functions: they provide structural support, enable size adjustment through rotation, and allow easy assembly and disassembly for portability. This multi-functionality achieves size adjustment flexibility without significantly increasing structural complexity.
3Ease of repair
If modular design with replaceable components is implemented, then repair cost is reduced, but the device complexity increases
Solution Approach 1:
The ball net is segmented into standardized modules with uniform connection interfaces. This segmentation enables easy replacement of damaged components while the standardization of connection methods (connection fasteners with positioning holes) prevents excessive complexity in the modular structure.
Data Source
AI summary
The present application provides a ball net assembly including two upright stands and multiple ball net wires connected between the two upright stands. The upright stand includes a cylindrical shell and a positioning cover sheet fixed at two ends of the cylindrical shell, a side wall of the cylindrical shell is provided with an extension-and-contraction groove; the upright stand includes a rotating shaft located inside the cylindrical shell, two ends of multiple ball net wires pass through the extension-and-contraction groove and are connected to a side wall of the rotating shaft. When the rotating shaft rotates, the multiple ball net wires are driven to retract or extend to adjust a width of the ball net assembly; the upright stand includes a connection fastener, two ends of the connection fastener are respectively connected to the positioning cover sheets in two ball net assemblies to splice the two ball net assemblies.