Soda Machine Pneumatic System with Knob-Adjustable Pressure Control
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Solution Overview
Problem
The existing pneumatic system of soda machines requires disassembly for adjusting the elasticity of the spring, making it inconvenient to maintain different pressures and concentrations of soda.
Innovation Solution
A pressure-adjustable pneumatic system with a piston-type pressure driving device that includes a push rod nut with internal threads, a spring, and an ejector rod, allowing for adjustable elasticity through a rotating knob mechanism, enabling convenient adjustment of internal pressures within the soda bottle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the spring elasticity is adjusted by disassembling the piston-type pressure driving device, then the pressure adjustment can be achieved, but the operation convenience deteriorates
Solution Approach 1:
The push rod nut is nested within the cylinder assembly, with the ejector rod passing through the push rod nut's central through-hole. This nested structure allows the push rod nut to be adjusted along the ejector rod without complete disassembly, enabling convenient pressure adjustment while maintaining structural compactness
Solution Approach 2:
The push rod nut is pre-equipped with a central through-hole and threading structure during manufacturing, allowing the ejector rod to pass through and engage with it. This preliminary preparation enables future adjustments to be made easily by simply rotating the push rod nut along the ejector rod, without requiring disassembly of the entire piston-type pressure driving device
2Ease of operation
If the push rod nut is designed with threading and central through-hole, then the adjustment convenience is improved, but the device complexity increases
Solution Approach 1:
The push rod nut serves multiple functions: it provides threading engagement with the cylinder for positional adjustment, has a central through-hole to accommodate the ejector rod, and includes a bearing surface that contacts the spring. This multi-functionality reduces the need for separate adjustment mechanisms, thereby reducing overall device complexity while improving adjustability
Solution Approach 2:
The push rod nut is designed as a separate, independent component with specific features (threading, through-hole) that can be manufactured independently and then assembled into the piston-type pressure driving device. This segmentation allows for easier manufacturing, assembly, and adjustment, reducing the perceived complexity despite the additional functional features
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 easy adjustment of the spring's elasticity, allowing for the production of sodas with varying concentrations by rotating the knob, which drives the push rod nut to adjust the internal pressure, facilitating convenient operation.
Implementation Method 1
a spring (423), wherein one end of the spring (423) is connected with the piston (422) and the other end of the spring (423) is connected with the cylinder body (421)
Implementation Method 2
A pneumatic system of soda machine integrating air inlet, driving, pressure relief and exhaust
Data Source
AI summary
A pressure-adjustable pneumatic system of soda machine, comprising upper cover (1), air inlet support (2), air distribution valve (3), sub-machine support (5), safety valve (8), piston-type pressure driving device (9), and further comprising driving base (41), knob (42), driving gear (43), driving wheel set (44), driven wheel set (45), drive gear (46). The first (41) and the second gear (2) connected driving wheel set; first gear (441) matches with driving gear (43); rotating shaft (453) fitted with driven wheel, the upper end of the rotating shaft is fixedly connected to speed reducing wheel (451), the lower end of the rotating shaft is connected to shaft body (4521) of driven gear (452); drive gear (46) is fixedly connected to shaft head (9421), also (46) extends into circular counter bore (2A) through hole, the driven gear (452) is located in the circular counter bore (2A), engaged with the drive gear (46); handheld part (421) of the knob (42) extends out of the upper cover (1) through knob hole (1A). Rotate the knob (42), drive gear (46) push rod nut (94) to rotate, adjust spring's elasticity, the internal pressure of exhaust driving pipeline drives piston, it's convenient to make soda have different concentrations.