Pipe Joint Seal Layout to Shorten Sockets and Reduce Turbulence
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Solution Overview
Problem
Conventional pipe joints result in a longer socket length and turbulent flow due to the insertion of the push ring, bolt, and joint rod between the spigot and socket, which complicates the joining process and requires additional time and effort to fill the stepped portion with mortar to prevent turbulent flow.
Innovation Solution
A pipe joint design that accommodates a seal body, push ring, and spacer within the annular accommodation space between the socket and spigot, preventing the push ring and spacer from entering the gap between the spigot and socket, thus shortening the socket length and eliminating the formation of a stepped portion, and includes a lock ring to prevent spigot detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the push ring, bolt, and joint rod are inserted between the spigot and socket to maintain sealing, then the sealing function is improved, but the socket length increases
Solution Approach 1:
The push ring, spacer, and seal body are nested within the annular accommodation space between the spigot and socket. The push ring is positioned inside the socket, the spacer is placed between the push ring and deep end face, and the seal body is accommodated in the annular space, creating a compact nested arrangement that prevents these components from extending the socket length while maintaining their functional roles.
2Reliability
If the push ring, bolt, and joint rod enter the gap between spigot and socket, then the sealing function is achieved, but a stepped portion is formed causing turbulent flow
Solution Approach 1:
The spacer acts as an intermediary component that maintains a predetermined interval between the push ring and the deep end face of the socket. This spacer prevents the push ring from directly contacting the deep end face, thereby avoiding the formation of a stepped portion that would cause turbulent flow, while still allowing the push ring to effectively compress the seal body for sealing.
3Reliability
If the interval between spigot top end and socket deep end face is widened to accommodate components, then the sealing function is improved, but the joining time increases
Solution Approach 1:
The spacer is pre-installed between the push ring and the deep end face of the socket before the spigot is inserted. This preliminary action ensures that when the spigot is inserted, the components are already in their correct positions, eliminating the need for time-consuming adjustments and mortar filling operations, thereby reducing the overall joining time while maintaining the sealing function.
4Object-generated harmful factors
If mortar material is used to fill the stepped portion, then turbulent flow is suppressed, but the joining process becomes more complex
Solution Approach 1:
The invention extracts and eliminates the stepped portion that causes turbulent flow by using the spacer to maintain a uniform interval between the push ring and the deep end face. This removes the need for mortar filling operations, thereby simplifying the joining process while still suppressing turbulent flow in the water passage.
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 design effectively shortens the socket length, reduces turbulent flow, and enhances the sealing function while preventing spigot detachment, thereby simplifying the joining process and maintaining the sealing integrity.
Implementation Method 1
a seal body for sealing a gap between the socket and the spigot
Implementation Method 2
a push ring that presses the seal body to keep the seal body in a compressed state
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Provided is a pipe joint 1 in which a seal body 26 and a spacer 30 are mounted from the insides of pipes 2, 4, wherein: a spigot 5 of one pipe 4 is inserted into a socket 3 of the other pipe 2; and an annular accommodation space 25 is formed between the inner circumference of the socket 3 and the outer circumference of the spigot 5. Inside the accommodation space 25 are accommodated: a seal body 26 for sealing the gap between the socket 3 and the spigot 5; a push ring 29 that presses the seal body 26 to keep the seal body 26 in a compressed state; and a spacer 30 that maintains the interval between the push ring 29 and the deep end of the socket 3 in the pipe axial direction.