Three-Way Pump Connector Preventing Diaphragm Valve Loosening
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Solution Overview
Problem
The existing wearable breast pumps face issues with the valve clack of the check valve becoming loosened from the valve seat, affecting the suction and discharge efficiency.
Innovation Solution
A three-way connecting assembly is introduced, comprising a three-way connector with a channel, milk sucking port, negative pressure port, and milk outlet, along with a diaphragm holder that includes a hollow plug-in part, connecting part, and elastic diaphragm, ensuring stable connection and efficient milk discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the valve clack is connected to the valve seat in the conventional manner, then the structure is simple, but the valve clack becomes loosened from the valve seat affecting suction and discharge efficiency
Solution Approach 1:
The valve structure is divided into separate functional components: the hollow plug-in part forms the valve clack, the elastic diaphragm forms the valve seat, and the connecting part links them. This segmentation allows each component to be optimized independently while improving overall connection stability through the elastic engagement mechanism.
Solution Approach 2:
The valve structure transitions from a rigid fixed connection to a dynamic elastic connection. The elastic diaphragm allows the valve clack to maintain dynamic engagement with the valve seat, adapting to pressure changes and preventing loosening while maintaining sealing effectiveness.
2Ease of operation
If the diaphragm holder is made loose-fitting for easy installation, then the ease of operation improves, but the diaphragm holder becomes unstable during operation
Solution Approach 1:
The elastic diaphragm acts as an intermediary between the hollow plug-in part and the milk outlet. It provides a compliant sealing interface that accommodates dimensional variations, allowing easy insertion while maintaining operational stability through elastic engagement and self-adjusting sealing pressure.
Solution Approach 2:
The elastic diaphragm changes its physical parameters (shape, thickness) in response to pressure differentials during operation. This parameter change allows the diaphragm holder to transition from a loose-fitting installation state to a tightly engaged operational state, resolving the contradiction between ease of installation and operational stability.
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 enhances the stability and efficiency of the breast pump operation by preventing the diaphragm holder from loosening and ensuring proper milk discharge, while maintaining a suitable negative pressure environment for effective milk collection.
Implementation Method 1
The diaphragm holder includes a hollow plug-in part, a connecting part and an elastic diaphragm... the elastic diaphragm is attached to the milk outlet
Implementation Method 2
The three-way connector is provided with a channel, a milk sucking port, a negative pressure port and a milk outlet... maintaining a suitable negative pressure environment for effective milk collection
Data Source
AI summary
Provided are a three-way connecting assembly and a wearable breast pump. The thrree-way connecting assembly is applied to a wearable breast pump, and includes a three-way connector and a diaphragm holder connected with the three-way connector. The three-way connector is provided with a channel, a milk sucking port, a negative pressure port and a milk outlet. The milk sucking port, the negative pressure port and the milk outlet are spaced apart and are all communicated with the channel. The diaphragm holder includes a hollow plug-in part, a connecting part and an elastic diaphragm. The connecting part connects the hollow plug-in part and the elastic diaphragm. The hollow plug-in part is inserted in the negative pressure port, and the hollow plug-in part and the elastic diaphragm are respectively located at two opposite sides of the three-way connector. The elastic diaphragm is attached to the milk outlet.