Tilting Sealing Ring Assembly for Low-Force Pipe Insertion
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Solution Overview
Problem
Existing pipe systems with fittings face challenges in assembly, particularly in avoiding damage to sealing rings by sharp edges on pipe ends, which can lead to leaks and increased assembly resistance.
Innovation Solution
The arrangement includes a sealing ring that extends around a central axis, a fitting with a sealing ring, a recess area, and a press zone. The sealing ring has a free space area behind it and a contact section that protrudes into the recess area, allowing it to tilt when a pipe section is inserted, thus avoiding damage and reducing friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the inner diameter of the seal is reduced to securely hold the pipe, then the holding force is improved, but the seal is damaged by sharp edges on the pipe end
Solution Approach 1:
The sealing ring is designed with a contact section that protrudes into the receptacle space before insertion, allowing it to engage with the pipe end face first. This preliminary contact guides the sealing ring onto the pipe and distributes insertion forces, preventing damage from sharp edges while maintaining secure holding force through the tilted position engagement
2Reliability
If the sealing ring is fully clamped to ensure sealing, then the sealing effect is improved, but the insertion force increases and sharp edges can damage the seal
Solution Approach 1:
The sealing ring is designed to change its position dynamically during insertion. It transitions from an initial position where the contact section protrudes into the receptacle space to a tilted position after insertion. This dynamic movement allows the seal to engage effectively for sealing while reducing clamping resistance during the insertion process, lowering insertion forces and preventing damage from sharp edges
3Reliability
If the sealing ring is made more resistant to damage, then the reliability is improved, but the frictional forces during insertion increase
Solution Approach 1:
The sealing ring utilizes a tilted position configuration that changes the dimensional relationship between the seal and the pipe. By tilting the sealing ring after insertion, the contact section engages with the pipe end face in a different spatial orientation, reducing frictional resistance during insertion while maintaining damage resistance through proper engagement geometry
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
This solution enables an improved assembly process with reduced risk of sealing ring damage, lower insertion forces, and increased holding forces, ensuring a secure and reliable seal.
Implementation Method 1
tilting the sealing ring has the advantage of reducing the frictional forces between the pipe section and the sealing ring
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
An arrangement comprises a sealing ring (1) extending around a central axis (M), a fitting (2) with a sealing ring receptacle (3) into which the sealing ring (1) is inserted, a receiving chamber (4) and a press zone (5) which is mechanically pressable, and a pipe section (6) which can be inserted into the receiving chamber (4) of the fitting (2) along an insertion direction (E), wherein the sealing ring receptacle (3) has a free space (7) behind the sealing ring when viewed in the insertion direction (E), wherein the sealing ring (1) projects radially from the sealing ring receptacle (3) into the receiving chamber (4) with a contact section (8), such that the end face (9) of the pipe section (6) can be brought into contact with the contact section (8) when the pipe section (6) is inserted, and wherein, when the pipe section (6) is inserted in the insertion direction (E), the sealing ring (1) tilts from a starting position into a tilting position, such thatthat the contact section (8) is movable in the direction of the free space area (7) and at least partially lies within the free space area (7).