Pipe Sealing Assembly for Tool-Free Joining and Leak Testing
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Solution Overview
Problem
Existing pipe connection and sealing methods require extensive tools and time, and air-tightness tests are typically conducted only after pipeline completion, making them costly and inefficient, especially for pipelines with multiple sections or those prone to leakage like PVC pipes.
Innovation Solution
A pipe sealing device comprising a first and second hollow cylindrical part with inclined surfaces and an elastic member, allowing for easy connection and sealing without welding or threading, and enabling air-tightness tests at any point during construction by using a fluid inlet for pressure confirmation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional pipe connection methods (screwing or welding) are used, then reliable connection is achieved, but construction time and cost increase significantly
Solution Approach 1:
The pipe connection device is divided into two separate parts: a first part inserted into the pipe and a second part covering the pipe end. These parts can be independently manufactured and assembled, enabling quick connection without complex welding or threading operations while maintaining reliable sealing through the elastic member.
Solution Approach 2:
The elastic member is pre-installed within the connection device structure before field assembly. This preliminary preparation ensures that when the first and second parts are assembled on-site, the sealing function is immediately activated without requiring additional tools or steps, thus reducing construction time while maintaining connection reliability.
2Reliability
If traditional pipe sealing methods are used, then air-tightness is maintained, but multiple tools and extensive procedures are required
Solution Approach 1:
The connection and sealing functions are merged into a single integrated device. The first part, second part, and elastic member work together as one unit that simultaneously achieves mechanical connection and air-tight sealing, eliminating the need for separate sealing compounds, gaskets, or additional sealing tools.
Solution Approach 2:
The elastic member automatically deforms and seals the interface between the first and second parts when assembled, without requiring external tools or additional sealing materials. The device self-activates the sealing function through the natural elastic deformation of the member upon assembly, reducing tool complexity while maintaining air-tightness.
3Reliability
If air-tightness tests are conducted only after pipeline completion, then overall testing is achieved, but leakage detection is delayed and costly
Solution Approach 1:
The connection device enables preliminary air-tightness testing to be performed at any stage during pipeline construction rather than waiting for completion. Each pipe section can be tested individually or in small groups as they are assembled, allowing early detection of leakage issues and reducing the need for extensive rework later.
4Adaptability or versatility
If PVC pipes with multiple sections are used, then installation flexibility is improved, but leakage risk increases due to porous material
Solution Approach 1:
The elastic member provides enhanced sealing quality specifically at the connection interfaces between pipe sections, where leakage is most likely to occur. This localized sealing enhancement addresses the porous nature of PVC material at critical junction points without requiring changes to the entire pipeline system, maintaining installation flexibility while improving sealing reliability.
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
Facilitates quick and tool-free pipe plugging and connection, allowing for immediate air-tightness testing at any section, reducing construction time and costs, and effectively sealing pipelines with multiple sections or porous materials like PVC.
Implementation Method 1
an elastic member 41 may be provided below the pipe end 29 so that the inclined portions 23 of the first part 11 and the second part 15 are in contact
Data Source
AI summary
The present invention includes: a first part which has a hollow cylindrical shape and circumscribes or is inscribed in a pipe; and a second part which has a cylindrical shape and circumscribes or is inscribed in the first part, wherein inclined portions, which have inclination angles that can hinder the second part from retreating from the first part, are formed between the first part and the second part so as to correspond to each other.