Pneumatic Spray Gun Valve Assembly for Replaceable Pressure Regulation
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Solution Overview
Problem
Conventional pneumatic spray guns have high maintenance costs and time due to the integral formation of the pressure regulating valve and rod, requiring simultaneous replacement and leading to inefficiencies in maintenance.
Innovation Solution
A pressure regulating valve assembly with a screw seat, rod, seal ring, clamping check ring, and valve, where the valve can be independently replaced, and a washer and cap design that facilitates easy assembly and appearance enhancement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the pressure regulating valve and rod are formed integrally by plastic injection, then the structure is simple and manufacturing is easy, but the maintenance cost increases and replacement time increases when the valve wears
Solution Approach 1:
The pressure regulating valve is separated from the pressure regulating rod, allowing the valve to be independently replaced when worn. The valve is retained by a split damping ring that can be removed and reinstalled, enabling maintenance of only the worn valve component rather than replacing the entire integrated assembly.
2Reliability
If the pressure regulating valve is subject to friction with the inner wall during pressure modulation, then the valve performs its function, but the valve wears over time requiring replacement
Solution Approach 1:
The pressure regulating valve is designed as a replaceable component that can be discarded when worn and recovered/reinstalled after replacement. The split damping ring allows the valve to be easily removed and reinstalled, facilitating maintenance without replacing the entire assembly.
3Stability of the object's composition
If the pressure regulating rod must be replaced along with the valve due to integral formation, then the structural integrity is maintained, but the maintenance time and cost increase
Solution Approach 1:
The pressure regulating valve is segmented from the pressure regulating rod through independent retention by the split damping ring. This allows the valve to be replaced without replacing the rod, reducing maintenance time and cost while maintaining the functional integrity of the assembled components.
4Ease of manufacture
If the hex head is configured in the middle of the pressure regulating screw seat, then the assembly is straightforward, but the appearance is less aesthetic
Solution Approach 1:
The hex head is nested within the pressure regulating cap rather than being exposed on the exterior. The cap covers the hex head, hiding it from view while still allowing access for assembly and disassembly, thus improving appearance while maintaining functional accessibility.
Data Source
AI summary
An pressure regulating valve assembly for a pneumatic spray gun is disclosed. The pressure regulating vale component is configured inside the pressure regulating passage of the gun body, comprising a pressure regulating screw seat, a pressure regulating rod going through the pressure regulating screw seat and in threaded connection with the pressure regulating screw seat. A pressure regulating seal ring is configured between the pressure regulating rod and the pressure regulating screw seat. A clamping check ring is configured in the middle portion of the pressure regulating rod. The clamping check ring is used to limit the position of the pressure regulating rod. The inner end of the pressure regulating rod is provided with a pressure regulating valve. The position of the pressure regulating valve is limited by the split damping ring configured on the end portion of the pressure regulating rod.