Pipe Connection Supporting Lip Elastic Deformation Sealing
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Solution Overview
Problem
Existing pipe connections are prone to groundwater infiltration and dirt entry due to inadequate sealing and support mechanisms, especially under increasing water pressure, and have limited tolerance ranges for annular bead dimensions.
Innovation Solution
The pipe connection features a supporting lip that transitions from a basic position to a sealing position through elastic deformation and tilting, forming an entry gap that increases sealing effectiveness with groundwater pressure, and is designed to prevent dirt entry and maintain seal integrity across varying dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the ring seal and sealing lips are designed with fixed positions to maintain sealing, then the structure is simple, but the tolerance range for annular bead dimensions is limited
Solution Approach 1:
The supporting lip is designed as a movable component that can tilt and deform elastically, allowing it to adapt to variations in annular bead dimensions. This dynamic capability enables the sealing structure to accommodate a wider range of dimensional tolerances without requiring complex adjustment mechanisms or multiple component variants, maintaining structural simplicity while enhancing adaptability.
Solution Approach 2:
The supporting lip's position and contact point are not fixed but can change in response to dimensional variations in the annular bead and plug-in pipe. The elastic deformation and tilting movement allow the supporting lip to maintain effective sealing contact across a broader range of dimensional parameters, increasing the acceptable tolerance range without complicating the overall structure.
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 enhances the pipe connection's impermeability to groundwater and prevents dirt entry, maintaining effective sealing even under increased water pressure and dimensional fluctuations, using a combination of elastic deformation and tilting movement of the ring seal.
Implementation Method 1
The support lip can be brought from a basic position in the pre-connection state of the pipe connection into a sealing position in the connection state of the pipe connection through elastic deformation and tilting
Implementation Method 2
The support lip can be brought from a basic position in the pre-connection state of the pipe connection into a sealing position in the connection state of the pipe connection through elastic deformation and tilting
Implementation Method 3
Groundwater located outside of the pipe connection can penetrate through this entry gap and thereby press the supporting lip with its supporting lip inner flank against the outer lateral surface of the insertion pipe. The greater the pressure of the groundwater penetrating into the entry gap, the stronger the inner flank of the supporting lip is pressed against the outer lateral surface of the insertion tube.
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
A pipe connection (2) with a pipe socket (4) has an annular groove (6) which is bounded by a groove base (8) and a first groove wall (12) in the insertion direction (10) and a further groove wall (14) opposite it, and an insertion pipe (16) with an insertion end (18) and an outer shell surface (20), as well as an elastic ring seal (22) located in the annular groove (6), which bears against the groove base (8) with outer sealing lips (26) arranged on an outer ring seal surface (24) and which has one or more inner sealing lips (30, 32, 34) on the inner ring seal surface (28) opposite the outer ring seal surface (24) for sealing against the outer shell surface (20) of the insertion pipe (16) in the connected state of the pipe connection (4), in which the insertion pipe (16) is inserted into the pipe socket (4) and the outer shell surface (20) of the insertion pipe (16) is sealed against the pipe socket (4) via the ring seal (22).The ring seal (22) has a support lip (36) with a support lip tip (38) and an outer support lip flank (40) facing the pipe socket (4) and an inner support lip flank (42) facing the insertion pipe (16), and the support lip (36) is designed to be movable from a basic position in the pre-connection state of the pipe connection (2), in which the insertion pipe (16) is still without contact with the ring seal (22), to a sealing position in the connected state of the pipe connection (2), wherein the support lip tip (38) is formed in the basic position against the first corrugated wall (12) and in the sealing position the inner support lip flank (42) is formed in contact with the outer shell surface (20) of the insertion pipe (16) and in this sealing position an inlet gap (44) between the support lip (36) and the first corrugated wall (12) to a gap at least from the first is arranged between the corrugated wall (12) and the chamber (46) bounded by the ring seal (22).