Plug Connection Seal Groove Using an Insertion Sleeve
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Solution Overview
Problem
Existing releasable plug connections face issues with metal chips adhering to the housing interior after machining, which impairs the annular seal and leads to leaks in the hose line due to the difficulty in removing these chips.
Innovation Solution
The insertion opening of the receiving part is designed as a cross-sectional widened portion with an annular shoulder, allowing an insertion sleeve to form the annular groove for the seal, eliminating the need for machining and thus avoiding metal chips, and providing a secure frictional or interlocking connection to ensure the seal's integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the annular groove is produced by machining the receiving part, then the groove can be precisely formed, but metal chips adhere in the housing interior and groove base, impairing the sealing function
Solution Approach 1:
The receiving part is divided into two functional sections: the housing interior and the insertion sleeve. The annular groove is formed in the insertion sleeve rather than the housing interior, separating the groove formation process from the main housing structure. This segmentation allows the groove to be formed without generating chips in the housing interior, while still achieving precise groove formation in the insertion sleeve.
Solution Approach 2:
The insertion sleeve acts as an intermediary component that forms the annular groove. Instead of directly machining the groove into the housing interior, the insertion sleeve is inserted into the housing and its end circumferential border forms the groove against the annular shoulder. This intermediary approach transfers the groove formation process to a separate component, eliminating chip contamination in the housing interior.
2Manufacturing precision
If machining is used to produce the receiving part and annular groove, then precise dimensions are achieved, but the production process becomes complex and time-consuming
Solution Approach 1:
The receiving part is segmented into the housing interior and the insertion sleeve. The housing interior can be produced with simpler processes, while the insertion sleeve is separately manufactured and then inserted. This segmentation allows parallel production of components and eliminates the need for complex machining operations on the housing interior, thereby improving overall production efficiency while maintaining dimensional accuracy through precise sleeve manufacturing.
Solution Approach 2:
The insertion sleeve is pre-manufactured with the annular groove and then inserted into the housing interior. This preliminary action of forming the groove in the sleeve before assembly eliminates the need for subsequent machining operations on the housing, streamlining the production process and improving efficiency while ensuring precise groove dimensions are achieved during the sleeve manufacturing stage.
3Object-affected harmful factors
If the annular groove is formed by inserting an insertion sleeve, then metal chip contamination is avoided, but the device structure becomes more complex
Solution Approach 1:
The receiving part is segmented into the housing interior and the insertion sleeve, with the annular groove formed in the sleeve. This segmentation adds one component but eliminates the need for complex cleaning processes and prevents chip contamination. The modular design allows for simpler manufacturing of each component and facilitates assembly by separating the groove formation function from the housing manufacturing process.
Solution Approach 2:
The insertion sleeve serves as an intermediary component that simplifies the overall system. By introducing this intermediate element, the complex problem of chip-free groove formation is solved without requiring complex machining or cleaning equipment. The sleeve mediates between the housing and the sealing requirement, providing a simple insert-and-seal solution that reduces overall system complexity despite adding one component.
Data Source
AI summary
A releasable plug connection with a tubular plug-in part, and with a sleeve-shaped receiving part which has an insertion opening through which the plug-in part is insertable into a sleeve interior of the receiving part. At least one annular groove is provided on the inner circumference of the receiving part, in which an annular seal is arranged which provides sealing in the annular gap between the inner circumference of the receiving part and the outer circumference of the plug-in part. The insertion opening opens out in a first interior portion of the sleeve interior that is configured as a cross-sectional widening in relation to an adjacent second interior portion and is delimited by an annular shoulder, and an insertion sleeve is insertable in the first interior portion of the sleeve interior, its peripheral edge directed towards the annular shoulder being spaced apart from the annular shoulder to form the annular groove between the peripheral edge of the insertion sleeve and the annular shoulder.