Inflatable bed with sponge cushion

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Solution Overview

Problem

Inflatable beds with a layered design face challenges in ensuring balanced inflation between upper and lower chambers, leading to instability and discomfort due to uneven air distribution or localized air leakage.

Innovation Solution

An inflatable bed with a sponge cushion that includes a top sheet, bottom sheet, side enclosure sheet, and a partition sheet dividing it into an upper cushion layer and a lower inflatable chamber, featuring a one-way air valve allowing air to flow unidirectionally from the upper layer into the lower chamber, along with webbing straps for structural stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a layered design with upper and lower inflatable chambers is used, then depression prevention is improved, but inflation balance and stability deteriorate

Engineering Contradiction:

Improvedepression preventionVSAvoidinflation balance

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The bed body is divided into an upper cushion layer and a lower inflatable chamber through a partition sheet, creating separate functional zones. The upper layer contains a sponge cushion for comfort and depression prevention, while the lower chamber provides stable support through controlled inflation, resolving the contradiction between depression prevention and inflation balance.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A one-way air valve is installed on the partition sheet to control air flow between the upper cushion layer and lower inflatable chamber. This intermediary device allows air to flow from the upper layer to the lower chamber during deflation but prevents backflow during inflation, ensuring the lower chamber maintains stable pressure without being over-inflated, thus solving the inflation balance problem.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Stability of the object's composition

If the lower inflatable chamber is fully inflated for stability, then bed stability is improved, but the upper cushion layer may become over-inflated causing surface bulging

Engineering Contradiction:

Improvebed stabilityVSAvoidsurface flatness

Core Design Contradiction:

Stability of the object's compositionVSShape

Solution Approach 1:

The one-way air valve acts as a mediator that permits air flow from the upper cushion layer to the lower inflatable chamber during inflation but blocks reverse flow. This ensures the lower chamber can be fully inflated for stability without air entering the upper layer and causing surface bulging, simultaneously achieving both bed stability and surface flatness.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The one-way air valve extracts the harmful effect of excessive air pressure by allowing controlled air transfer from the upper cushion layer to the lower chamber. This prevents over-inflation of the upper layer while ensuring adequate inflation of the lower chamber for stability, resolving the contradiction between bed stability and surface flatness.

Inventive Principle:

Principle #2Taking out (Extraction)

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 design provides enhanced stability and comfort by preventing air from flowing back into the upper cushion layer, maintaining even inflation and deflation, and offering adjustable firmness levels for versatile use.

Implementation Method 1

The partition sheet is provided with at least one one-way air valve, and the at least one one-way air valve is configured to allow air to flow unidirectionally from the upper cushion layer into the lower inflatable chamber

Methodology Applied

Scientific EffectOne-way valve mechanism: Valve

Implementation Method 2

the upper cushion layer provided with the sponge cushion provides a soft and comfortable bed surface, which can absorb and distribute the user's body weight pressure

Methodology Applied

Scientific EffectPressure distribution:

Implementation Method 3

the first air valve on the upper cushion layer can be opened to allow ambient air to enter the upper cushion layer and then permeate the microcellular structure of the sponge cushion, in this way, the air pressure inside the upper cushion layer with the ambient atmospheric pressure is equalized

Methodology Applied

Scientific EffectPressure equalization:

Data Source

PatentUS20260060439A1Inflatable bed with sponge cushion

Publication Date: 2026.03.05 WUZHOU BAOFENG PLASTIC PROD CO LTD

AI summary

An inflatable bed with sponge cushion includes a top sheet, a bottom sheet and a side enclosure sheet, where the top sheet, the bottom sheet and the side enclosure sheet form a bed body, a partition sheet is provided inside the bed body, a peripheral edge of the partition sheet is connected to the side enclosure sheet to divide the bed body into an upper cushion layer and a lower inflatable chamber, and a sponge cushion is provided inside the upper cushion layer. The lower inflatable chamber is provided with an inflation and deflation assembly, the upper cushion layer is provided with a first air valve, the partition sheet is provided with at least one one-way air valve, and the at least one one-way air valve is configured to allow air to flow unidirectionally from the upper cushion layer into the lower inflatable chamber.