Multi-layer sleeping pad
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Solution Overview
Problem
Conventional air beds are prone to uneven stress and rapid deformation under external forces and become inoperable upon air leakage, lacking adequate cushioning and support for patient comfort and durability.
Innovation Solution
A multi-layer sleeping pad design featuring an outer air cushion with a first cavity, an inner air cushion, and first and second cushion pads, along with an inflation structure comprising interconnected inflation assemblies and sealing components, which cushions pressure and reduces deformation while preventing air leakage through sponge-based cushioning and sealing mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional air beds are filled with air only, then they are simple in structure and easy to manufacture, but they are prone to uneven stress under external force, leading to rapid and large deformation
Solution Approach 1:
The sleeping pad is divided into multiple independent air chambers (first air chamber, second air chamber, third air chamber) separated by partition walls. This segmentation allows each chamber to independently bear load and distribute stress evenly, preventing rapid deformation while maintaining overall structural integrity.
Solution Approach 2:
The sleeping pad combines air-filled chambers with sponge cushion pads to create a composite structure. The air chambers provide support and buoyancy, while the sponge pads provide cushioning and stress distribution, together achieving superior deformation resistance compared to air-only structures.
2Reliability
If conventional air beds are filled with air only, then they are lightweight, but they cannot work anymore when air leakage occurs
Solution Approach 1:
Different regions of the sleeping pad have different properties: air chambers provide support in certain areas while sponge cushion pads provide cushioning in contact areas. This local differentiation allows the pad to maintain functionality even if one chamber leaks, as other chambers and sponge sections continue to provide support.
Solution Approach 2:
The sponge cushion pads are pre-installed within the air chambers to provide backup cushioning support. If air leakage occurs, the sponge pads immediately take over the cushioning function, ensuring the sleeping pad remains operational without sudden failure.
3Object-affected harmful factors
If conventional air beds are filled with air only, then they are simple in structure, but they lack adequate cushioning and support for patient comfort
Solution Approach 1:
The sleeping pad combines air-filled chambers with sponge cushion pads to create a composite structure. The air chambers provide support and buoyancy, while the sponge pads provide cushioning and stress distribution, together achieving superior patient comfort compared to air-only structures.
Solution Approach 2:
The sponge cushion pads act as intermediaries between the patient's body and the air chambers. They distribute body weight evenly across the air chamber surfaces, preventing pressure points and improving comfort while the air chambers provide overall support.
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 multi-layer sleeping pad provides improved softness and support by cushioning pressure and reducing deformation, while the sponge-based cushioning and sealing mechanisms enhance durability and prevent air leakage, ensuring consistent performance and comfort.
Implementation Method 1
the first cushion pad is configured to cushion a pressure applied by the inner top of the outer air cushion to the outer top of the inner air cushion
Implementation Method 2
the inflation structure is configured to inflate the first cavity and the second cavity
Data Source
AI summary
A multi-layer sleeping pad, which includes an outer air cushion, an inner air cushion and a first cushion pad. The outer air cushion is provided with a first cavity. The inner air cushion is arranged in the first cavity. The first cushion pad is arranged between an inner top of the outer air cushion and an outer top of the inner air cushion.