Spiral Air Pressure Spring with Vent Holes for Adjustable Elasticity
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Solution Overview
Problem
Existing compression springs are nonadjustable, occupy large space, and have limited deformation stroke and hardness adjustment range, making them unsuitable for applications like spring mattresses, while gas springs have complex structures and inadequate deformation capabilities.
Innovation Solution
A spiral air pressure spring with a spiral air column and vent holes, adjustable by air inflation or deflation, featuring transverse and longitudinal air passages, hard rings for stress distribution, and a fabric-covered outer cover for enhanced comfort and ventilation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional compression spring is used, then it provides elastic support, but it occupies large space and cannot be adjusted in elasticity
Solution Approach 1:
The patent replaces the traditional metal spring with an air column structure that uses compressed air to provide elastic support. The air column can be inflated to increase elasticity or deflated to reduce it, enabling adjustable elasticity while occupying minimal space when deflated. This pneumatic approach eliminates the need for large mechanical spring structures.
Solution Approach 2:
The air column structure allows dynamic adjustment of elasticity through controlled inflation and deflation, transforming the static elastic property of traditional springs into a dynamically adjustable parameter. This enables the same structure to adapt to different support requirements without changing physical dimensions.
2Adaptability or versatility
If a gas spring with cylinder and piston is used, then it provides adjustable elasticity, but it has complex structure and high inter-part fitting requirements
Solution Approach 1:
The patent extracts only the essential functional element (the air-containing cavity) from the complex gas spring system, eliminating the cylinder, piston, and other auxiliary components. This simplified air column structure maintains the elasticity adjustment function while dramatically reducing structural complexity and inter-part fitting requirements.
Solution Approach 2:
The air column is enclosed by a flexible outer cover that can expand and contract, replacing the rigid cylinder-piston assembly. This flexible membrane structure allows for simple inflation and deflation operations without complex mechanical components, achieving adjustable elasticity with minimal structure.
3Length of moving object
If a traditional metal spring is used, then it provides structural support, but it has limited deformation stroke
Solution Approach 1:
The patent changes the physical state parameter of the support medium from solid (metal spring) to gas (compressed air). This allows the air column to achieve much larger deformation strokes while maintaining structural support capability through air pressure, as gases are highly compressible compared to solid metals.
4Reliability
If the air column is made entirely of macromolecular organic material, then sealing is improved, but softness may be excessive and strength insufficient
Solution Approach 1:
The patent uses a composite structure for the air column wall, combining macromolecular organic material (for sealing and softness) with fabric material (for strength and shape retention). This composite construction achieves both excellent sealing performance and sufficient mechanical strength, as each material compensates for the other's deficiencies.
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 spiral air pressure spring offers adjustable elasticity, extended deformation stroke, improved comfort, and reduced space occupation, facilitating versatile use and easy packaging, while maintaining structural simplicity and effective moisture management.
Implementation Method 1
common compression spring is formed by spirally coiling metal wires with strong elasticity, such as steel wires, and generates elasticity by means of their elastic deformation
Implementation Method 2
the spring body is formed by an air column having a pressure air containing cavity
Implementation Method 3
the air column is formed by a strip-shaped cylinder spirally, and the air column is longitudinally arranged and provided with transverse and longitudinal air passages
Data Source
AI summary
A spiral air pressure spring designed by the invention solves the technical problems of complex structure and low compressive strength in the current gas springs. The spiral air pressure spring comprises a spring body, and is characterized in that the spring body is formed by an air column having a pressure air containing cavity, the air column is spiral, and at least one vent hole communicated with the containing cavity is arranged on the air column. The hardness of the spiral air pressure spring is adjusted by filling pressure air, the spiral air pressure spring is particularly large in deformation stroke and good in transverse and longitudinal ventilation, is used for manufacturing mattress, sofa, massage chair, cushion and the like, and is easy to remove moisture so that the influence on human body health is eliminated; the spiral air pressure spring is convenient in hardness adjustment and wide in one-way deformation range, meets the demands on various occasions and can be adjusted in real time to enhance the comfortable level; in addition, the spiral air pressure spring is convenient for coiled package to save the transportation cost, and can be unfolded by inflation when used by a user.