Single-Knob Air Pump with Integrated Inflation and Deflation Switching
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Solution Overview
Problem
Existing inflatable air pumps lack flexibility in switching between inflation and deflation modes, and often require complex operations to manage air flow effectively.
Innovation Solution
A single-knob air pump design incorporating an air extracting mechanism, fan blade chamber, air channel switching mechanism, air valve mechanism, and ejector rod mechanism, allowing for flexible inflation and deflation without changing the air extracting direction, utilizing a knob mechanism to control the air channel switching and valve operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional inflatable air pumps are used with separate knobs for inflation and deflation, then the air flow control is more precise, but the device complexity and ease of operation are worsened due to multiple controls
Solution Approach 1:
The patent combines the inflation and deflation control functions into a single knob mechanism. The knob can rotate to switch between different modes: pushing the knob controls inflation, while rotating the knob controls deflation. This merging of functions reduces the number of controls from two separate knobs to one, simplifying the user interface and reducing device complexity while maintaining full functionality
Solution Approach 2:
The single knob mechanism serves multiple functions: it can be pushed to control the inflation valve, rotated to control the deflation valve, and positioned at different angles to switch between inflation and deflation modes. This multi-functional design allows one component to replace what would traditionally require two separate controls, improving ease of operation without significantly increasing device complexity
2Adaptability or versatility
If the air extracting direction is changed to switch between inflation and deflation modes, then the air flow control is simplified, but the reliability is worsened due to potential air leakage or incomplete switching
Solution Approach 1:
The patent employs dynamic valve mechanisms that can switch between different states based on knob position. The first valve mechanism dynamically opens/closes the first air inlet/outlet during inflation, while the second valve mechanism dynamically opens/closes the second air inlet/outlet during deflation. This dynamic switching ensures complete sealing in each mode, preventing air leakage and maintaining reliability while allowing the system to adapt between inflation and deflation functions
Solution Approach 2:
The patent introduces valve mechanisms as intermediary components between the air extracting mechanism and the external environment. These valves act as mediators that control air flow direction and prevent direct communication between the internal chamber and external atmosphere during mode transitions. The first and second valve mechanisms ensure complete sealing during switching, eliminating air leakage risks while maintaining system reliability
3Reliability
If multiple valve mechanisms are used to control air inlets/outlets, then the reliability of sealing is improved, but the device complexity increases
Solution Approach 1:
The patent segments the valve control functions into two distinct valve mechanisms: a first valve mechanism for controlling the first air inlet/outlet during inflation, and a second valve mechanism for controlling the second air inlet/outlet during deflation. Each valve mechanism is independently controlled by the knob, allowing precise control of each air pathway. This segmentation ensures reliable sealing in each mode while organizing the complexity into manageable, functionally-separated components
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
Enables efficient and flexible inflation and deflation of inflatable products by maintaining consistent air flow direction, with the air valve mechanism ensuring stable opening and closing of air inlets/outlets, and the V-shaped structure facilitating smooth switching between states.
Implementation Method 1
an air extracting mechanism, fan blades of the air extracting mechanism being arranged in a fan blade chamber provided with an air inlet and an air outlet
Implementation Method 2
the second air inlet/outlet is provided with an air valve mechanism capable of closing or opening the second air inlet/outlet
Implementation Method 3
an ejector rod mechanism capable of closing or opening the second air inlet/outlet through the air valve mechanism under the action of the air channel switching mechanism
Data Source
AI summary
A single-knob air pump includes a housing provided with a first air inlet/outlet and a second air inlet/outlet; an air extracting mechanism arranged in the housing; fan blades of the air extracting mechanism arranged in a fan blade chamber provided with an air inlet and an air outlet; an air channel switching mechanism arranged near the fan blade chamber and provided with an air inlet and an air outlet; the air channel switching mechanism operatively connected to a knob mechanism which can control the displacement of the air channel switching mechanism; the second air inlet/outlet provided with an air valve mechanism capable of closing or opening the second air inlet/outlet; and an ejector rod mechanism capable of closing or opening the second air inlet/outlet through the air valve mechanism under the action of the air channel switching mechanism arranged between the air valve mechanism and the air channel switching mechanism.