Pleated Side-Opening Mosquito Net Cable Tension Adjustment
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Solution Overview
Problem
Existing mosquito nets face issues with inadequate wire tensioning leading to poor fit and instability, rigidity in lateral movement, and sensitivity of top straps or chains, which affect performance and durability.
Innovation Solution
The mosquito net incorporates a coated steel cable with a tension adjustment piece and a screwdriver-operated mechanism for easy tensioning, a screwdriver-adjustable vertical level adjustment, and a rounded caterpillar-type chain for smooth lateral sliding, replacing traditional chains and straps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If traditional chains or straps are used at the top of the mosquito net, then the structure is simpler, but the reliability deteriorates due to rigidity issues, chain breakage, or strap sensitivity
Solution Approach 1:
The patent changes the material parameter from traditional chains/straps to a cable system with adjustable tension, transforming the mechanical properties to achieve both simplicity and reliability. The cable can be tensioned to the optimal level, preventing breakage while maintaining ease of operation.
Solution Approach 2:
The patent introduces a dynamic adjustment mechanism that allows the cable tension to be modified based on usage conditions. This dynamic parameter adjustment ensures the system remains reliable under varying loads while maintaining simple operation.
2Manufacturing precision
If wires are tensioned during installation to ensure proper fit, then the manufacturing precision improves, but the ease of operation deteriorates as installers require specialized knowledge and additional time
Solution Approach 1:
The patent implements a self-adjusting tensioning system where the cable automatically maintains proper tension through its mechanical design. The system serves itself by using the natural tensioning mechanism rather than requiring external expertise, thus achieving both precision and ease of installation.
Solution Approach 2:
The patent introduces an intermediary tensioning device that mediates between the cable and the fabric, automatically adjusting to the correct tension level. This intermediary component handles the complexity of tension adjustment, leaving the installation process simple for the user.
3Ease of operation
If a caterpillar-type chain with rounded shape is used, then the ease of operation improves for smooth lateral sliding, but the device complexity increases compared to traditional ant-type chains
Solution Approach 1:
The patent applies curvature to the chain links by using rounded caterpillar-type links instead of angular ant-type links. This geometric modification reduces friction during lateral sliding, improving ease of operation while the modular chain design keeps overall complexity manageable.
Data Source
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AI summary
The present invention relates to a mosquito net, the aim of which is to improve and streamline the installation and subsequent use of pleated side-opening mosquito nets, increasing the performance and durability of the product. The mosquito net of the invention comprises: a fabric that is moved between a closed position and an open position and vice versa; and a pull element for moving the fabric, comprising a cable part that runs through a frame by means of pulleys, the mosquito net also comprising a part for regulating and adjusting the tension of the pull element.