Portable Air Blower Nozzle With Adjustable Wind Speed and Volume
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Solution Overview
Problem
Existing portable air blowers are not versatile enough to efficiently handle operations requiring both wind quantity and wind speed, necessitating the use of multiple blowers, which increases costs.
Innovation Solution
A portable air blower design featuring a main pipe with a movable second pipe that can adjust its outlet position relative to the main pipe's outlet, allowing for either direct wind delivery or enhanced wind quantity by utilizing inflow windows to increase airflow, depending on the operational need.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single portable air blower is designed to handle both wind quantity and wind speed operations, then versatility is improved, but device complexity increases
Solution Approach 1:
The second pipe is made movable relative to the first pipe in the axial direction, allowing the outlet position to be dynamically adjusted between upstream and downstream positions. This dynamic configuration enables a single device to adapt between wind speed mode (outlet upstream) and wind quantity mode (outlet downstream) without requiring multiple separate blowers, thereby improving versatility while maintaining relatively simple device structure
Solution Approach 2:
The single portable air blower is designed with dual functionality to handle both wind quantity operations and wind speed operations. By incorporating the movable second pipe with adjustable outlet position and inflow windows, the device can universally serve multiple operational requirements that traditionally would have needed separate specialized blowers
2Productivity
If the second outlet opening is disposed downstream of the first outlet opening to increase wind quantity, then productivity is improved, but wind speed decreases
Solution Approach 1:
The system allows dynamic switching between two operational modes by moving the second pipe: when the second outlet opening is positioned downstream, the device operates in wind quantity mode with higher productivity; when positioned upstream, it operates in wind speed mode. This dynamic reconfiguration enables the device to adapt to different operational priorities without performance degradation in either mode
Solution Approach 2:
The second pipe is designed with localized inflow windows at specific positions that enable air intake from surrounding areas. When the outlet is positioned downstream, these inflow windows facilitate additional air intake that enhances wind quantity while maintaining adequate wind speed through the combined airflow from the main body and the inflow windows
3Speed
If the second outlet opening is disposed upstream of the first outlet opening to maintain wind speed, then wind speed is preserved, but wind quantity decreases
Solution Approach 1:
The movable second pipe allows the system to switch to upstream outlet positioning when high wind speed is required. In this configuration, the direct discharge path maintains wind speed momentum, while the system accepts reduced wind quantity as a trade-off that can be compensated by adjusting operational parameters or using the device in applications where wind speed is the priority
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 a single portable air blower to effectively manage both wind quantity and wind speed requirements by simply adjusting the position of the second pipe, reducing the need for multiple blowers and lowering operational costs.
Implementation Method 1
wind flowing from the inflow window (56) into the second pipe (5A) due to negative pressure
Data Source
AI summary
A portable air blower includes: a first pipe having a first outlet opening communicating with a main body, the first pipe discharging wind generated in the main body through the first outlet opening; and a second pipe having a larger diameter than that of the first pipe, the second pipe being attached movably in the axial direction to the outer circumference of the first pipe and having a second outlet opening having a larger diameter than that of the first outlet opening. In the portable air blower, the second pipe is moved relative to the first pipe to dispose the second outlet opening upstream or downstream of the first outlet opening; the second pipe has an inflow window disposed upstream of the first outlet opening, the inflow window enabling air to flow from the outside into the second pipe.