Pump Connection Cuff for Twist-Free, Leak-Proof Hose Assembly
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Solution Overview
Problem
Existing connection devices for pumps require two-handed operation and tools to connect hoses and power cables, leading to twisting and alignment issues, especially in vertical positions, which results in a less-than-precise connection and potential leaks.
Innovation Solution
A connection device with a self-contained elastic cuff that connects two sections of the device, allowing for one-handed operation without tools. The cuff features radial projections that align and secure the connection sections, ensuring a precise and leak-proof connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screw connections are used to connect hoses to pump outlets, then a secure connection can be achieved, but twisting of the hose and power cable occurs and precise vertical alignment cannot be simultaneously achieved with good sealing
Solution Approach 1:
Instead of using threaded connections that require twisting, the patent inverts the approach by using a push-fit system with radial projections that engage into grooves. This allows vertical alignment to be achieved precisely without any twisting motion, while still providing secure connection through the interlocking projections and grooves.
Solution Approach 2:
The patent replaces the traditional screw-thread mechanical system with an elastic deformation-based system. The elastic connecting element deforms radially to allow insertion, then returns to its original shape to create a firm connection through radial projections engaging into grooves, eliminating the need for twisting while maintaining connection security.
2Ease of operation
If clamp connections are used to prevent hose and power cable tangling, then alignment issues are avoided, but two-handed operation and tools are required
Solution Approach 1:
The elastic connecting element performs the function of both alignment and connection securing automatically. The radial projections self-align with the grooves during insertion, and the elastic memory of the material provides the locking force without requiring any additional tools or two-handed operation, thus simplifying the device operation while maintaining ease of alignment.
Solution Approach 2:
The patent utilizes the parameter change of the elastic connecting element - specifically its radial deformability. The element can be compressed radially to allow insertion, then automatically returns to its original shape to engage the projections into grooves, providing both alignment and secure connection through a single motion that requires only one hand and no tools.
3Ease of manufacture
If traditional connectors are used with screw threads, then connection can be made, but the pump and hose must be twisted relative to each other causing cumbersome operation
Solution Approach 1:
The patent inverts the traditional connection approach by eliminating the need for twisting. Instead of rotating connectors to achieve connection, the radial projections engage into grooves through a simple push-fit motion, allowing the pump and hose to remain in their original orientations without any relative twisting, thus maintaining connection capability while dramatically improving ease of operation.
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 connection device allows for easy, tool-free attachment of hoses and power cables to pumps, eliminating twisting and alignment issues, and ensuring a secure, leak-proof connection in any position.
Implementation Method 1
an elastic connecting element for connecting the first end of the second connection section to the second end of the first connection section
Data Source
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AI summary
The invention relates to a connection device for a pump with a pump body having an outlet opening and an inlet opening, comprising at least a first connection section with a first end and a second end, a second connection section with a first end and a second end, wherein the first end is connected to the second end of the first connection section in a connected state of the connection device, and an elastic connecting element for connecting the first end of the second connection section to the second end of the first connection section, wherein the elastic connecting element is designed as a self-contained cuff which has at least two radially opposing projections on its radial inner surface.which, in the connected state, engage through two openings in the region of the first end of the second connection section into a groove in the region of the second end of the first connection section. The invention further relates to a method for assembling a connection device and a pump for this purpose.