Quick Connector Pressing Ring for Fast, Stable Water Pipe Coupling
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Solution Overview
Problem
Existing fire fighting equipment joints require multiple turns to install and disassemble, leading to inconvenience and unreliability due to threading issues, especially with hot and cold water alternation causing joints to fall off.
Innovation Solution
A quick connector with a circlip assembly and pressing ring that allows for fast installation and disassembly by using a spring piece that expands and contracts to clamp and release water pipes, featuring a conical surface design for stable connection and easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If threaded joints are used for installation, then the connection can be secure, but the installation and disassembly require multiple turns (5-10 times) which is inconvenient and time-consuming
Solution Approach 1:
The connector is divided into separate components: a connector body and a quick-connect assembly that can be independently installed and removed. This segmentation allows the quick-connect assembly to be attached to the connector body through a simple snap-fit mechanism rather than threading, enabling rapid installation and disassembly without requiring multiple turns.
Solution Approach 2:
Instead of using threads to create a secure connection through rotational engagement, the invention inverts the approach by using a press-fit mechanism with elastic deformation. The quick-connect assembly is pressed into the connector body, causing elastic deformation of the connector material that creates a secure friction fit, eliminating the need for rotational threading operations.
2Ease of operation
If threaded joints are directly installed on water outlet, then installation is easy, but they easily fall off when hot and cold water alternate, resulting in unreliability
Solution Approach 1:
The quick-connect assembly incorporates a spherical engagement surface that mates with a corresponding spherical recess in the connector body. This curved geometry provides self-centering and uniform distribution of contact stresses, preventing the connection from loosening under thermal expansion and contraction caused by hot and cold water alternation, thereby enhancing connection reliability.
3Reliability
If threaded joints are installed too tight, then connection reliability is improved, but disassembly becomes difficult and the joint cannot be reused
Solution Approach 1:
The quick-connect assembly utilizes dynamic elastic deformation to achieve both secure connection and easy disassembly. During installation, the connector material elastically deforms to grip the quick-connect assembly firmly, providing reliable connection. During disassembly, applying outward force reverses the elastic deformation, releasing the grip and allowing easy removal for reuse.
4Productivity
If a quick-connect assembly with spring piece is used, then fast installation and disassembly is achieved, but the structure becomes more complex
Solution Approach 1:
The spring piece is designed to automatically perform the clamping function without requiring additional actuators or complex mechanisms. When the quick-connect assembly is inserted, the spring piece automatically compresses and then expands to clamp the connection, providing self-service clamping that simplifies the overall structure while enabling fast installation and disassembly.
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 quick and stable connection/disconnection of water pipes with low manufacturing costs and high practicality, suitable for popularization and use in fire fighting equipment.
Implementation Method 1
the spring piece is compressed by the water pipe to produce displacement, and because the spring piece is elastic, it will clamp the water pipe under its own restoring force
Data Source
AI summary
This application relates to the technical field of connection structures, and in particular to a quick connector, which is characterized in that it comprises a connector, that serves as an installation body and is used to connect and communicate multiple pipes to ensure that liquid flows inside the connector; a quick-connect assembly is arranged at at least one end of the connector; wherein the quick-connect assembly comprises a spring assembly and a pressing ring which are placed in sequence from the inside to the outside of the connector; the spring assembly is used to clamp a water pipe to be connected, and the spring assembly comprises a spring sheet, which extends toward the axis of the pressing ring and extends out of the inner ring of the pressing ring; the pressing ring is suitable for moving along the axis direction of the connector to push the spring sheet to extend and retract.