Adjustable Volleyball Net Frame With Segmented Height Positioning
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Solution Overview
Problem
Current net frame structures for volleyballs lack accurate height adjustment, leading to imbalances in offensive and defensive play, as the height is subjectively adjusted and may deviate from standard heights, affecting game balance.
Innovation Solution
A net frame structure with adjustable net height featuring support members with multiple height positioning portions, a flexible suspending member, and a tension rope system that allows precise adjustment to standard heights, ensuring the net is maintained at desired heights through a limiting groove mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a slidable structure is used to adjust net height, then the net height can be adjusted, but the adjustment accuracy is poor and the actual height deviates from standard height
Solution Approach 1:
The support member is divided into multiple discrete height positioning portions (first, second, third positioning portions) at different heights. Instead of continuous adjustment, the net height is segmented into standardized levels, ensuring accurate positioning at each predefined height while maintaining ease of adjustment through simple selection among discrete options.
Solution Approach 2:
Different portions of the support member have different functions: some portions (first positioning portion) are configured for easier attachment/detachment operations, while other portions (second, third positioning portions) provide stable positioning at specific heights. This local differentiation optimizes both operational ease and positioning accuracy at different locations.
2Ease of operation
If the net height is adjusted higher, then it is easier for attackers to smash and score, but the offensive and defensive balance is broken
Solution Approach 1:
The height positioning portions are pre-configured at standardized heights that correspond to official volleyball net height requirements. By preparing these predetermined positions in advance, the system ensures that when adjustment is needed, the net can be quickly set to the correct standardized height, maintaining game balance while allowing necessary height changes.
3Ease of operation
If the net height is adjusted lower, then it is easier for defenders to block and score, but the offensive and defensive balance is broken
Solution Approach 1:
The height positioning portions are pre-configured at standardized heights that correspond to official volleyball net height requirements. By preparing these predetermined positions in advance, the system ensures that when adjustment is needed, the net can be quickly set to the correct standardized height, maintaining game balance while allowing necessary height changes.
4Measurement precision
If multiple height positioning portions are provided on support members, then the net can be maintained at standard heights, but the device complexity increases
Solution Approach 1:
Multiple height positioning portions are integrated into a single support member structure. The first, second, and third positioning portions are combined within the same support member, allowing the net to achieve multiple standardized heights without requiring separate adjustment mechanisms for each height level, thus reducing overall device complexity while maintaining positioning accuracy.
Solution Approach 2:
The support member serves multiple functions: it provides structural support for the net, contains multiple height positioning portions for different standardized heights, and enables both easy attachment/detachment and stable positioning. This multi-functionality eliminates the need for separate components for each function, reducing device complexity while achieving accurate height adjustment.
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 solution provides accurate and easy height adjustment, maintaining the net at standard heights, improving play balance and operational simplicity, suitable for various games and applications.
Implementation Method 1
the suspending member is of a flexible structure and is provided with a suspending hole... the suspending hole has a first state in which a width of the suspending hole in a front-rear direction of the net is greater than a maximum outer diameter of the height positioning portion and a second state in which the width of the suspending hole in a front-rear direction of the net is less than the maximum outer diameter of the height positioning portion
Implementation Method 2
the support member has a first state in which an upper portion of the support member is close to the net in the left-right direction of the net frame structure and a second state in which the upper portion of the support member is away from the net in the left-right direction of the net frame structure, and the support member is maintained in the second state under the action of the elasticity of the support member
Data Source
AI summary
The present application provides a net frame structure with an adjustable net height, the net frame structure comprising: a net, a suspending member being provided on each of left and right sides of the net; and two support members respectively arranged on the left and right sides of the net in an extended state, wherein each of the support members is provided with a plurality of height positioning portions, the plurality of height positioning portions are sequentially arranged at intervals in a height direction of the support member, a height at which each height positioning portion is located corresponds to a standard height of the net, and the height positioning portion is detachably connected to the suspending member, enabling the net to be maintained at a desired standard height. When the height of the net needs to be adjusted, it is only necessary to connect the suspending member on the net to a height positioning portion corresponding to the desired standard height, thus allowing the actual height of the net to correspond to the desired standard height, avoiding fluctuations of the actual height of the net, improving the height adjustment accuracy of the net, providing a simple structure, and making operations easy.