Dual-purpose air nozzle for inflator assembly
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Solution Overview
Problem
Existing dual-purpose air nozzles for inflators are complex in structure and difficult to assemble due to the need for multiple components and accurate positioning of a non-return ball between pressing blocks.
Innovation Solution
A simplified dual-purpose air nozzle design featuring a shell with a 'L'-shaped first pressing block, a second pressing block, and a shunting cavity, where the shunting cavity is positioned on the right of the second channel, allowing sequential assembly without a push block and eliminating the need for precise positioning of the non-return ball.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a dual-purpose air nozzle is designed to accommodate both American type and Britain/France type air valves, then the adaptability of the inflator is improved, but the device complexity increases due to multiple components and configurations
Solution Approach 1:
The air nozzle is designed with two different rubber seals (first rubber seal and second rubber seal) that can be selectively installed to match different air valve types (American type and Britain/France type). This allows a single air nozzle structure to serve multiple functions and be compatible with various valve configurations without requiring separate nozzles for each type.
Solution Approach 2:
The air nozzle is divided into separable components including the shell, first rubber seal, second rubber seal, first pressing block, and second pressing block. These segmented parts can be independently selected, assembled, and replaced based on the specific air valve type being used, providing flexibility while maintaining overall system simplicity.
2Reliability
If a non-return ball is arranged between the first pressing block and the second pressing block to control air flow direction, then the reliability of air flow control is improved, but the difficulty of assembly increases due to the need for accurate positioning
Solution Approach 1:
The non-return ball acts as an intermediary element that automatically controls air flow direction based on pressure differential. It is positioned within the shunting cavity to selectively block or allow passage between the first channel and second channel, providing reliable flow control without requiring complex mechanical linkages or precise external positioning mechanisms.
Solution Approach 2:
The non-return ball utilizes the pressure differential between the two channels to automatically position itself and control air flow direction. When pressure in one channel exceeds the other, the ball is pushed into or out of the shunting cavity, self-regulating the flow path without external intervention or complex positioning systems.
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 simplifies the assembly process and reduces complexity by enabling the first pressing block to drive the second pressing block, making it easier to connect with different air valve types while maintaining effective sealing.
Implementation Method 1
as the air pressure of the communicating, joint connecting the unused rubber seal and the shunting cavity 50 is lower than that of the communicating joint connecting the being, used rubber seal and the shunting cavity 50, therefore, the communicating joint connecting the unused rubber seal and the shunting, cavity 50 is sealed by the non-return ball 51
Implementation Method 2
push the first pressing block 41 and the second pressing block 42 to the left, thus the first rubber seal 31 and the second rubber seal 32 can achieve good communication with the air valve after being compressed
Data Source
AI summary
An inflator usable for multiple valve types is disclosed that is simply designed and efficient to assemble. The dual-purpose air nozzle for an inflator optimizes the shape of the pressing block and the locations of a first pressing block and a second pressing block, as well as optimizes the location of the shunting cavity so as to reduce the number of components included with a mult-valve adaptable inflator and also to facilitate assembly.