Multi-Part Retaining Ring for Secure Exhaust Pipe Axial Locking
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Solution Overview
Problem
Existing axial securing rings for flexible exhaust pipes can loosen when encountering obstacles, leading to a loss of axial positive locking between connected pipes.
Innovation Solution
A multi-part locking ring design with separate fastening and gripping sections, where the gripping section can be laterally slid onto the sleeve pipe and connected to the fastening section via bayonet locking means, reducing the risk of axial detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a one-piece locking ring with radially spring-loaded tabs is used for axial securing, then the exhaust pipe can be easily installed and axially secured to the socket pipe, but the locking ring can be pulled off the socket pipe when pipes are pulled into obstacles, causing loss of axial positive locking
Solution Approach 1:
The locking ring is divided into two separate components: a gripping section with radially spring-loaded tabs for engaging the circumferential bead, and a fastening section with bayonet locking means for positive axial locking. This segmentation allows each section to perform its specific function independently, preventing the entire locking mechanism from failing when subjected to pulling forces.
Solution Approach 2:
The gripping section and fastening section are combined in a single locking ring assembly that integrates both the spring-loaded tab mechanism for radial engagement and the bayonet locking means for axial positive locking. This merging ensures that both functions work together to provide secure and reliable connection.
2Reliability
If a multi-part locking ring design with separate fastening and gripping sections is used, then the reliability of axial positive locking is improved, but the device complexity increases
Solution Approach 1:
The locking ring is segmented into two functional sections (gripping section and fastening section) that are axially adjacent and connected to each other. This segmentation allows for simplified manufacturing of each section while maintaining overall reliability through their coordinated operation.
Solution Approach 2:
The locking ring assembly serves multiple functions through its two sections: the gripping section provides radial engagement and positioning, while the fastening section provides axial positive locking. This multi-functionality is achieved within a single integrated assembly, avoiding the need for completely separate components.
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 multi-part locking ring design enhances the stability and security of the axial locking function, preventing unintentional loosening when pipes are pulled into obstacles, ensuring a secure connection between exhaust gas pipes.
Implementation Method 1
their radially spring-loaded tabs of the rear gripping section can be pulled off the socket pipe when two pipes connected via the retaining ring are inserted
Implementation Method 2
fastening section, in particular with bayonet locking means, for establishing an axial positive locking connection
Data Source
Figure 1a~1e
Figure 2a~2j
Figure 2k~2m
AI summary
The invention relates to a retaining ring (1) for axially securing, in particular releasably, a plastic exhaust pipe that is at least partially flexible to a socket pipe (2) having a circumferential bead (4), comprising a rear-engaging section (11) for engaging behind the circumferential bead (4) on the outer circumference of the socket pipe (2) radially inwards, and an axially adjacent fastening section (9) with counter-fastening means (14) formed monolithically on the exhaust pipe (3) for a positive-locking, fixing action. According to the invention, the fastening section (9) and the rear-engaging section (11) are designed as separate components (10, 12, 25), preferably made of plastic, which are axially connected to each other, preferably monolithically with the fastening section (9) and/or the rear-engaging section (11), and in particular are interlocked with each other.