Guided Valve Body Structure to Prevent Pressure Ejection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing valves face issues with the valve body being pressed out of the housing under excessive pressure and often require complex rotational and axial movements, leading to operability challenges and a risk of jamming or wedging.
Innovation Solution
A valve design featuring a longitudinally movable valve body with external auxiliary guide elements that engage with guide grooves in the valve housing, allowing for a combined translatory and rotary movement path, providing stability and preventing the valve body from being unscrewed or pulled out, and incorporating additional internal guide elements for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If guide nubs are used for guided movement and fixation, then the valve body is held in position, but the valve body can still be pressed out under excessive pressure
Solution Approach 1:
The guide nub is divided into two functional segments: an outer circumferential surface that engages with the guide groove for lateral guidance, and an inner conical surface that engages with a corresponding conical recess in the valve housing for axial positioning and pressure resistance. This segmentation allows each surface to specialize in its optimal function.
Solution Approach 2:
The guide nub transitions from a simple cylindrical shape to a conical shape, adding a dimensional element (the cone angle) that enables engagement with a conical recess. This dimensional change creates a self-centering, pressure-resistant connection that prevents ejection while maintaining guided movement.
2Ease of operation
If bayonet lock mechanism is used, then guided movement is achieved, but complex rotational and axial movements are required
Solution Approach 1:
The guide groove and guide nub are designed to combine lateral guidance and axial positioning functions into a single integrated mechanism. The conical engagement surface merges the guidance function with the centering function, eliminating the need for separate centering mechanisms.
Solution Approach 2:
The guide groove serves multiple functions simultaneously: it provides lateral guidance for the valve body, accommodates the conical engagement for axial positioning, and enables the opening/closing movement. This multi-functionality reduces the need for additional separate mechanisms.
3Stability of the object's composition
If multiple guide elements are added for stability, then valve stability is improved, but device complexity increases
Solution Approach 1:
The single conical guide nub performs multiple stabilization functions: it centers the valve body laterally through the guide groove engagement, positions it axially through conical engagement, and provides rotational guidance. This multi-functional element achieves stability without requiring multiple separate guide components.
Solution Approach 2:
The conical surface of the guide nub is specifically designed with a particular angle and geometry optimized for its location, providing localized pressure distribution and engagement characteristics that enhance stability without adding overall system complexity.
Data Source
AI summary
A valve includes a longitudinally movable valve body that is arranged in the valve, wherein the valve housing has at least two guide grooves, with which auxiliary guide elements, arranged on the valve body, engage an exterior surface of the valve housing. The guide grooves of the valve housing are shaped such that they define a combined translatory and rotary movement path of the valve body with the aid of the auxiliary guide elements in order to open or close the valve.