Air Bed Valve Assembly with Adapter for Multi-Size Pump Compatibility

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Solution Overview

Problem

Conventional airbed systems face challenges in accommodating air pumps of various sizes, leading to limitations in inflation efficiency and compatibility.

Innovation Solution

The airbed system incorporates a valve design featuring a middle valve cover with an adapter ring and a default ring of different diameters, allowing it to accommodate air pumps of 18mm and 31mm sizes, and an internal structure that maintains the air mattress's shape and prevents over-inflation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single-size valve is used in the air mattress, then the device complexity is reduced, but the adaptability to different pump sizes is limited

Engineering Contradiction:
Improvecompatibility with pump sizesVSAvoidvalve structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The valve is divided into multiple detachable components including a base valve body, adapter ring, and cover assembly. This segmentation allows the adapter ring to be selectively attached or removed, enabling compatibility with different pump sizes (18mm or 31mm) without requiring a completely different valve design for each pump type.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The valve assembly is designed to perform multiple functions through a single integrated structure. The base valve body can accommodate different adapter rings, allowing the same valve to work with both 18mm and 31mm pumps. This multi-functionality eliminates the need for separate valves for different pump sizes, thereby improving adaptability while maintaining reasonable device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If a larger valve opening is used to accommodate bigger pumps, then the productivity of inflation is improved, but the precision of fit with smaller pumps deteriorates

Engineering Contradiction:
Improveinflation speedVSAvoidfit precision with pump
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The adapter ring serves as an intermediary component between the valve body and the pump. When a smaller 18mm pump is used, the adapter ring provides the necessary interface to achieve a precise fit. The adapter ring effectively mediates the size difference between the larger valve opening and the smaller pump, ensuring both good sealing and efficient air transfer without compromising inflation speed.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If the valve structure is simplified for ease of manufacture, then the ease of manufacture is improved, but the functionality to support multiple pump sizes deteriorates

Engineering Contradiction:
Improvevalve manufacturing simplicityVSAvoidmulti-pump compatibility
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The adapter ring is designed to nest within the valve assembly, fitting into the base valve body and working in conjunction with the cover. This nested configuration allows the adapter ring to be stored within the valve structure when not in use, and easily installed when needed. The nesting approach maintains a compact overall structure while adding the functionality to support multiple pump sizes, balancing ease of manufacture with adaptability.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP3914841B1Improved air bed valve
Publication Date: 2025.02.26 BELGRAVIA WOOD LTD
  • EP3914841B1 patent drawingFigure 1A~1B
  • EP3914841B1 patent drawingFigure 1C
  • EP3914841B1 patent drawingFigure 2A~2B

AI summary

The disclosed technology includes an air valve assembly for providing flexibility for a user when inflating an inflatable air mattress. The air valve assembly can include a base configured to attach to a portion of the inflatable air mattress, a middle valve configured to attach to the base portion and having a first diameter, a diaphragm member configured to attach to the middle valve, and a cap configured to removably couple to a portion of the air valve. The assembly can further include an adapter configured to detachably attach to the middle valve portion. The adapter can have a portion with a second diameter that is smaller than the first diameter such that when the adapter is attached, a user may use an inflation device with a smaller dimensioned output.