Inflatable Bullet Cartridge with Push Rod Air Vent
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Solution Overview
Problem
Traditional inflatable bullets are prone to errors due to gas check vibration or miscontact, leading to safety issues during firing.
Innovation Solution
An inflatable bullet design featuring a shell case with concentric through-holes, a pressure chamber, and a push rod with an air vent and piston, where air flows laterally through the air vent on the push rod, ensuring that even with air leakage, the bullet will not be fired inaccurately, enhancing safety by isolating the pressure chamber from external ventilation during firing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gas check is used to control air flow in traditional inflatable bullets, then the bullet can be fired, but the gas check is easily vibrated or contacted in error leading to accidental firing
Solution Approach 1:
The patent removes the gas check component entirely and replaces it with a push rod mechanism that has an air vent. This extraction of the problematic gas check eliminates the source of vibration and miscontact that caused accidental firing in traditional designs.
Solution Approach 2:
The push rod acts as an intermediary mechanism between the pressure chamber and the bullet. Instead of using a gas check that directly controls air flow, the push rod with its air vent provides a controlled interface that prevents accidental firing while still allowing proper firing when intended.
2Reliability
If air flows laterally through the air vent on the push rod, then air leakage does not cause accidental firing, but the structure becomes more complex
Solution Approach 1:
The air vent is segmented into specific openings on the push rod that allow lateral air flow. This segmentation enables controlled air leakage paths that prevent accidental firing while maintaining a relatively simple overall structure compared to complex sealing mechanisms.
Solution Approach 2:
The push rod has different properties at different locations: it has air vents at specific positions to allow controlled air flow, while other areas maintain sealing qualities. This local differentiation enables safety through controlled leakage without requiring complex overall structural changes.
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 effectively prevents accidental firing due to air leakage, improving the safety of inflatable bullets by ensuring that air pressure is contained and directed correctly to propel the bullet accurately.
Implementation Method 1
when inflating the pressure chamber though the airway of the push rod from the front part of the push rod, the air pressure will push the push rod to move backwards until the air vent on the push rod is pushed out of the pressure chamber
Implementation Method 2
the pressure inside the pressure chamber pushes the piston which further push the push rod forward
Data Source
AI summary
A cartridge for launching a bullet, includes a shell case, a pressure chamber and a push rod; the shell case defines concentric through-holes; the pressure chamber is set up between the through-holes; the push rod defines an air vent and an airway, the air vent being in fluid communication with the firing chamber via the airway; a piston is mounted to the push rod and is received in the pressure chamber for compressing the chamber; when uncompressed, the air vent is located in the pressure chamber, when the push rod is struck the air vent moves forwards, back into the pressure chamber, the compressed air in the pressure chamber is discharged via the air vent and the airway to fire the bullet. The invention has a simple and compact structure, and is safe in use.