Releasable Plug Connector with Integrated Spring Bars
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Solution Overview
Problem
Existing detachable plug connections for hoses are complex and costly to produce, with a risk of breaking under pressure and leading to leaks due to separate materials and multiple parts.
Innovation Solution
A one-piece molded part made of hard-elastic material connects the securing and connecting elements via deflectable spring rods, eliminating the need for a separate securing element and allowing for stable, loadable connections with reduced manufacturing effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the connecting element and securing element are made as separate plastic injection molded parts, then the plug connection can be produced with standardized components, but the production effort and cost increase significantly
Solution Approach 1:
The patent combines the connecting element and securing element into a single integrated molded part made of hard-elastic material. This merging eliminates the need for separate securing elements and multiple plastic injection molded parts, reducing production effort and cost while maintaining the functional separation of connecting and securing functions within the unified structure.
2Adaptability or versatility
If the connecting element and securing element are made from different materials separately, then each component can be optimized for its specific function, but the overall structure becomes more complex and expensive to manufacture
Solution Approach 1:
The integrated molded part incorporates locally differentiated properties: the connecting element portion provides structural connection functions while the securing element portion provides retention functions. The spring bars integrated within the unified structure provide elastic securing action. This local quality differentiation within a single material structure achieves component optimization without the complexity of multiple materials and assembly steps.
3Ease of manufacture
If separate plastic molded parts are used for connecting element and securing element, then manufacturing flexibility is maintained, but the risk of breaking under pressure and causing leaks increases
Solution Approach 1:
By merging the connecting element and securing element into a single integrated molded part, the patent eliminates weak interfaces between separate components that could fail under pressure. The unified structure ensures load paths are continuous and distributes pressure loads throughout the entire component, preventing the breaking and leaking issues that occur with separate parts.
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 provides a stable and resilient plug connection that can withstand pressure without breaking, reducing production complexity and costs, while maintaining tight seals and easy handling.
Implementation Method 1
spring bars brought together in a V-shape and which can be springed open by pressure being applied to the combined bar end regions
Implementation Method 2
the spring rods can be designed to be sufficiently stable and loadable in order to connect the line sections to one another with practically no play in the axial direction
Data Source
Figure 1
Figure 2~3
Figure 4~7
AI summary
The plug connection structure (1) has a connecting element (2) which is provided with a sleeve-shaped receiving portion (3) for insertion of a tubular plug (4). A fuse element (6) made of hard-resilient material, is formed with an inwardly directed retaining edges (7) in the extension region of deflectable spring bars (11). The connecting element and the fuse element are integrally connected together to form a molded structure (10) made of hard-resilient material, through deflectable spring bars.