Quick Connector Valve Assembly for Dual-Side Backflow Sealing
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Solution Overview
Problem
Conventional quick connectors lack the ability to stop backflow on both sides, leading to leakage and overflow during disconnection, and often result in liquid residue at connecting joints, increasing the risk of contamination in industrial processes.
Innovation Solution
A quick connector assembly with a valve assembly that controls fluid flow on both sides, featuring a rotatable valve with closures and O-rings to prevent backflow and residue, and a locking mechanism to secure the assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional quick connectors use piston or check valves to control abrasive fluid passages, then the basic fluid control function is achieved, but the ability to stop backflow on both sides is lost, leading to leakage and liquid residue
Solution Approach 1:
The valve assembly is divided into two independent valve units (first valve unit and second valve unit), each controlling one side of the quick connector. Each valve unit has its own closure member that can independently seal its respective fluid passage, allowing separate control of backflow on both sides rather than relying on a single check valve mechanism.
Solution Approach 2:
O-rings are introduced as intermediary sealing elements between the closure members and the valve bodies, and between the valve assembly components. These O-rings provide additional sealing barriers that prevent liquid residue and leakage at the connecting joints, supplementing the primary valve closure mechanism.
2Ease of manufacture
If quick connectors are periodically removed for cleaning and maintenance, then contamination control is maintained, but liquid residue at connecting joints increases contamination risk
Solution Approach 1:
The valve assembly is designed as a separable component that can be removed from the quick connector body for cleaning and maintenance. By extracting the valve assembly as a distinct unit with removable connections, it becomes accessible for thorough cleaning while the sealed design minimizes liquid residue accumulation at joints during normal operation.
Solution Approach 2:
The O-rings are designed as replaceable sealing elements that can be easily removed and replaced during maintenance. This allows for simple replacement of worn or contaminated seals without replacing the entire valve assembly, effectively addressing contamination issues from liquid residue at low cost.
3Device complexity
If conventional quick connectors lack switching capability, then the structure remains simple, but overflow of excessive returning liquid occurs when circulation loop is out of control
Solution Approach 1:
The valve assembly incorporates rotatable valve controls that allow dynamic switching between different flow states. The first and second valve controls can be rotated to open or close their respective fluid passages, enabling active control of fluid circulation and prevention of overflow conditions rather than relying on passive check valve behavior.
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 effectively reduces the probability of liquid residue at connecting joints and prevents overflow, enhancing the cleanliness and control of fluid circulation in industrial processes.
Implementation Method 1
The valve control is connected to the valve for driving the valve to rotate in the second hollow structure of the first base when the valve control is being rotated, by which the first hollow passage of the valve is in fluid communication with the second end of the first fluid interface assembly or the first closure of the valve closes off the second end of the first fluid interface assembly
Implementation Method 2
The valve assembly further includes a valve O-ring disposed between the first hollow passage/the first closure and the second hollow passage/the second closure to block a fluid from flowing between the first hollow passage and the second hollow passage
Data Source
AI summary
A quick connector assembly and a quick connector device are disclosed. The quick connector assembly includes a first base, a first fluid interface assembly and a valve assembly. The valve assembly regulates whether a fluid flows through the quick connector assembly or not, and thereby sealing the flow of the fluid at both sides of the quick connector assembly. The quick connector assembly and the quick connector device in an embodiment of the present disclosure can regulate the flow of the fluid effectively and provide better barriers to keep concurrent flows separated and isolated. Especially, the quick connector device can be used in slurry delivery system which has fluid being abrasive fluid or solid contained liquid.