Valve Body Connection Structure for Easier Pilot Valve Assembly
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Solution Overview
Problem
Existing valve body connection structures face difficulties in assembly due to integrated or split structures, with integrated structures being hard to assemble and split structures prone to riveting deviation and low resonance frequency.
Innovation Solution
A valve body connection structure comprising a first connector with a connection part and plug-in part fixed to the main valve, and a second connector with a connection part, plug-in part, and extension part fixed to the pilot valve, allowing for insertion matching and welding to facilitate assembly and fixation, reducing operation difficulty and ensuring stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If an integrated support structure is used between the pilot valve and main valve, then the structural strength is improved, but the assembly difficulty increases
Solution Approach 1:
The support structure is divided into a first support component connected to the main valve and a second support component connected to the pilot valve. These separate components can be independently assembled and then connected through the connection structure, reducing assembly difficulty while maintaining structural strength through the designed connection interface.
2Ease of operation
If a split support structure fixed through riveting is used, then the assembly ease is improved, but the manufacturing precision deteriorates due to riveting deviation
Solution Approach 1:
The connection structure includes pre-designed connection interfaces with positioning features that guide the alignment of the first and second support components before final fixation. This preliminary positioning action ensures accurate alignment and reduces deviation during the assembly process.
Solution Approach 2:
The invention replaces traditional riveting mechanical fastening with a connection structure that uses interference fit and positioning features. This substitution eliminates riveting deviation while maintaining connection strength and assembly ease.
3Ease of operation
If a split support structure fixed through riveting is used, then the assembly ease is improved, but the stability deteriorates due to low resonance frequency
Solution Approach 1:
The support structure is segmented into components that are connected through a designed interface. This segmentation allows for optimized connection geometry that enhances structural stiffness and resonance frequency while maintaining assembly ease through the modular design.
Solution Approach 2:
The connection structure utilizes composite construction with different material properties in different regions. The connection part and support components are designed with materials and geometries that optimize both assembly ease and dynamic stability, including enhanced resonance frequency.
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 split valve body connection structure simplifies assembly, reduces riveting deviations, and enhances the stability and service life of the valve assembly by ensuring proper alignment and fixation through pre-positioning and welding, resulting in a firm and long-lasting assembly.
Implementation Method 1
the first plug-in part matches the second plug-in part in an insertion manner so as to limit movement and rotation of the second connector relative to the first connector
Implementation Method 2
the first connection part is welded to the main valve, the second connection part is welded to the pilot valve
Data Source
AI summary
Disclosed are a valve body connection structure and a valve assembly with the valve body connection structure. The valve body connection structure includes: a first connector including a first connection part and a first plug-in part, wherein the first connection part is fixedly connected to the main valve, and the first plug-in part is disposed on the first connection part; and a second connector including a second connection part, a second plug-in part and an extension part, wherein the second connection part is fixedly connected to the pilot valve, the second plug-in part is disposed on the second connection part, the first plug-in part matches the second plug-in part in an insertion manner, the extension part is disposed on the second connection part, and the extension part is provided with an assembly hole allowing a pipeline of the pilot valve to pass through.