Multi-Stage Pneumatic Gun with Three-Stage Air Pump and Speed Regulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional pneumatic air guns face issues such as inconvenient pellet loading, inability to adjust pellet velocity, poor sealing leading to air leaks, complex and expensive magazine mounting, limited air pressure, and inefficient air inlet due to single-stage air charging and lever-type pull-bolt mechanisms.
Innovation Solution
A pneumatic air gun with a three-stage air pump, a speed-regulation valve, and a multi-stage energy storage system that includes a valve body with an air release passage and a speed-regulation valve core, allowing for adjustable air flow and improved sealing, combined with a lever and handle for reduced compression force and enhanced air intake through multiple inlet holes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If a single-stage air charging system is used, then the device complexity is reduced, but the air pressure and inlet air volume are limited
Solution Approach 1:
The air charging system is divided into three independent stages (first-stage piston cup, second-stage piston cup, third-stage piston cup) that compress air sequentially. Each stage has its own piston and compression chamber, allowing progressive pressure buildup from atmospheric pressure through three distinct compression phases to achieve high final pressure while maintaining manageable individual stage complexity
Solution Approach 2:
The three-stage compression system is arranged in a nested configuration where the first-stage piston operates in the outer chamber, the second-stage piston operates in an intermediate chamber, and the third-stage piston operates in the innermost chamber. This nested arrangement allows compact packaging of multiple compression stages within a single pump body, achieving high pressure without proportionally increasing overall device size or complexity
2Ease of operation
If a lever-type pull-bolt mechanism is used, then the triggering mechanism is simplified, but the difficulty of directly shooting steel pellets increases
Solution Approach 1:
The traditional lever-type mechanical pull-bolt mechanism is replaced with a magnetic field-based system. A magnetic shaft generates magnetic attraction force to directly pull the steel pellet through the barrel, eliminating the need for complex mechanical linkages, levers, and springs. This substitution simplifies the triggering mechanism while making it easier to load and shoot steel pellets directly
Solution Approach 2:
The system uses magnetic force (analogous to pneumatic/hydraulic fluid pressure in its ability to act remotely through a medium) to transmit the pulling force to the pellet. The magnetic field acts as the transmission medium, replacing the mechanical contact and linkage system, thereby simplifying the overall mechanism while improving pellet loading and firing ease
3Reliability
If steel to steel or rigid encapsulation sealing is used, then the manufacturing precision is improved, but the air leak ratio increases due to poor sealing
Solution Approach 1:
The patent employs flexible sealing elements including rubber O-rings and elastic sealing rings that can deform to conform to mating surfaces. These flexible membranes replace rigid steel-to-steel or rigid encapsulation seals, providing reliable sealing through elastic deformation that compensates for manufacturing tolerances and surface irregularities, thereby reducing air leaks while simplifying the sealing structure
Solution Approach 2:
The sealing system uses composite construction combining rigid metal housing structures with flexible rubber or elastomeric sealing elements. This composite approach allows the rigid parts to provide structural support and positioning while the flexible material provides the actual sealing function, achieving both manufacturing ease and sealing reliability
4Speed
If a single air inlet hole is provided in the barrel, then the device complexity is reduced, but the air inlet efficiency and initial velocity of pellets deteriorate
Solution Approach 1:
The single air inlet hole is segmented into multiple air inlet holes distributed around the barrel circumference. This segmentation increases the total cross-sectional area for air entry, allowing greater air flow volume and higher pressure delivery to the pellet, thereby increasing initial velocity while keeping each individual inlet hole simple in structure
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 solution provides improved performance by achieving high pressure and volume, stable air admission, reliable sealing, adjustable pellet velocity, and increased initial velocity of pellets, while simplifying the loading process and reducing the complexity and cost of the magazine system.
Implementation Method 1
The air pump is a three-stage air pump... When the air gun is not triggered and the air passage is closed, the air-compression assembly is used to introduce air into valve assembly to store air therein
Implementation Method 2
a lever and a handle are used in combination to reduce the force necessary for air compression
Implementation Method 3
The air release passage between the air release valve and the barrel is further provided with a speed-regulation valve for regulating an air flow
Implementation Method 4
The top end of the pull-bolt thimble is formed with a bore in which a magnetic shaft capable of magnetically attracting a steel pellet is provided
Implementation Method 5
A spring is attached to the hammer... under the drive of the hammer spring, the hammer moves forward quickly
Implementation Method 6
An O-ring is provided between the valve core shaft and the valve cover... The O-ring is fitted tightly on the valve core shaft
Implementation Method 7
A first-stage piston cup, which is opened upon air admission and closed upon air compression... A second-stage piston cup, which is closed upon air admission and opened upon air compression
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Provided is a new type of air-pressure pneumatic gun having multi-stage compressed-air energy storage, comprising a gun barrel (101), a pneumatic-gun valve body (102), a pneumatic-gun pressure gauge (103), a compressed-air component (104), an energy storage component (105), and a trigger transmission component (106); the trigger component (106) comprises a trigger frame (21) fixed on the pneumatic-gun frame (100), and a pull bolt assembly (22), trigger (23), trigger catch (24), and hammer (25) arranged on the pneumatic-gun frame (100); the trigger (23) and trigger catch (24) are connected; the loading top pin on the pull bolt assembly (22) is movably connected to the hammer (25) and controls the hammer (25) to return to a position snap-fitted with the trigger catch (24); the energy storage component (105) comprises a pneumatic cylinder (301) and a one-way air valve (302), the pneumatic cylinder (301) being a three-stage air pump; the pneumatic-gun valve body (102) is internally provided with a depressurization channel (303) in communication with the one-way air valve (302) and the gun barrel (101); the depressurization channel (303) is internally provided with a depressurization valve (304); the inside of the depressurization channel (303) between the depressurization valve (304) and the gun barrel (101) is also provided with a speed-regulating valve (305); the depressurization valve (304) is provided with a sliding member, and the sliding member is at the end position of the firing path of the hammer (25). The new type of air-pressure pneumatic gun having multi-stage compressed-air energy storage is easy to use.