Interchangeable Air Blow Gun Pulse Continuous Function
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Solution Overview
Problem
Existing air blow guns require two separate devices to function as both continuous and pulse blow guns, and they cannot maintain the same shape for both functions, which complicates worker operability.
Innovation Solution
An air blow gun design that includes a body case with a unit accommodation chamber capable of housing both a pulse blow unit and a continuous blow unit, allowing for interchangeable functionality without changing the gun's shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a pulse blow gun is designed to intermittently discharge air, then pulse blow function is achieved, but it cannot continuously discharge air
Solution Approach 1:
The air blow gun is designed with a universal structure that can perform both pulse blow and continuous blow functions. The gun body, trigger mechanism, and air passage are common to both modes, while only the blow unit (pulse blow unit or continuous blow unit) differs. This allows a single device to achieve multiple functions without requiring completely separate designs for each mode.
Solution Approach 2:
The air blow gun is divided into independent functional units: a common gun body and interchangeable blow units. The blow unit is segmented as a replaceable module that can be exchanged between pulse blow unit and continuous blow unit. This segmentation allows the system to switch between functions by simply replacing the blow unit while keeping the main structure intact.
2Adaptability or versatility
If two separate air blow guns are prepared for pulse and continuous functions, then both functions are achieved, but the shapes of the two guns must differ
Solution Approach 1:
The gun body is designed as a universal structure that serves both pulse blow and continuous blow modes. The external shape, grip, trigger mechanism, and overall form factor remain identical regardless of which blow unit is installed. This universality ensures that workers deal with a consistent shape and interface for both functions, improving operability and reducing training requirements.
Solution Approach 2:
The common components of both pulse blow gun and continuous blow gun (gun body, trigger, air passage, discharge nozzle) are merged into a single unified structure. Only the blow unit portion is differentiated and made interchangeable. This merging eliminates the need for two separate gun shapes while maintaining both functional capabilities.
3Ease of operation
If a throttle valve is added to change pulse interval, then pulse interval control is achieved, but continuous discharge capability is lost
Solution Approach 1:
The control functions are segmented and integrated into the interchangeable blow units. The pulse blow unit contains the throttle valve and pulse control mechanism, while the continuous blow unit has a simple open/closed state valve. By replacing the blow unit, the user gains access to the appropriate control characteristics for the desired discharge mode without the unwanted control elements.
Solution Approach 2:
The system dynamically adapts its control characteristics based on the installed blow unit. When a pulse blow unit is installed, the throttle valve becomes active for pulse interval control. When a continuous blow unit is installed, the valve operates in a simple open/closed manner for continuous discharge. This dynamic adaptation allows the system to provide the appropriate control mode for each function.
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 the air blow gun to function as both a continuous and pulse blow gun with a single device, maintaining the same shape and improving worker operability by allowing easy switching between functions.
Implementation Method 1
a pulse blow unit intermittently outputting, to an intermittent output end portion, air supplied to an intermittent input end portion from outside
Implementation Method 2
a continuous blow unit continually outputting, to a continuous output end portion, air supplied to a continuous input end portion from the outside
Data Source
AI summary
An air blow gun 10 has: a main case 11 provided with a discharge nozzle 14; a unit accommodation chamber 29 detachably accommodating any of a pulse blow unit 31 that intermittently outputs, to an intermittent output end portion 39, air supplied to an intermittent input end portion 34 and a continuous blow unit that continuously outputs, to a continuous output end portion, air supplied to a continuous input end portion; a unit exchange lid by which the unit accommodation chamber 29 is opened/closed; and a manual valve 21 switched, by a trigger lever 24, between an open state in which the air discharged from the pulse blow unit 31 or continuous blow unit is discharged to a discharge nozzle 14 or a closed state in which the discharging is stopped.