Split T-Pipe Housing Structure for Diameter Stability and Sealing
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Solution Overview
Problem
Existing housing devices for fluid pipes face challenges in maintaining diameter stability under separating forces and accommodating varying pipe diameters, leading to potential separation and leakage issues.
Innovation Solution
The housing device features an annular case with split portions and a clamp, where protrusions are formed only at the ends of the case to create a smaller gap, allowing for adjustment through bolt holes, enabling the device to maintain diameter stability and accommodate different pipe diameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If protrusions are formed at all locations on joint surfaces to suppress diameter reduction, then diameter stability is improved, but adaptability to varying pipe diameters deteriorates
Solution Approach 1:
The patent applies local quality by forming protrusions only at specific locations (ends in the circumferential direction) of the joint surfaces rather than uniformly across all joint surfaces. This localized approach allows the protrusions to suppress diameter reduction at critical areas while leaving other areas flexible for adjustment, thereby resolving the contradiction between diameter stability and adaptability to varying pipe diameters.
2Stability of the object's composition
If the gap at the split portion is regulated by protrusions to suppress diameter reduction, then diameter stability is improved, but ease of operation deteriorates due to lack of adjustment leeway
Solution Approach 1:
The patent applies local quality by positioning protrusions only at the ends in the circumferential direction of the joint surfaces, leaving the central regions without protrusions. This creates a differentiated structure where the ends have fixed gap control for diameter stability, while the central regions maintain adjustment capability for ease of operation, allowing operators to adjust the clamp to accommodate different pipe diameters.
3Stability of the object's composition
If protrusions are formed within the region toward the interior from bolt holes to suppress diameter reduction, then diameter stability is improved, but device complexity increases
Solution Approach 1:
The patent applies local quality by restricting protrusions to specific locations at the ends of the joint surfaces, away from the bolt hole regions. This localized placement simplifies the overall structure compared to having protrusions throughout, while still achieving diameter stability at the critical end areas where separation forces are most problematic.
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
A split T-shaped pipe (1) serves as a housing device and comprises: an annular case body (12) that has a split part (10) in at least one location in the circumferential direction, and that surrounds the outer circumferential surface of a water pipe (K) in a sealed state with a seal material therebetween; and fasteners (13) for tightening the split part (10), thereby joining a plurality of split pieces (12d, 12u) constituting the case body (12). Joining surfaces (14, 14) are provided at the circumferential end portions of the split pieces (12d, 12u), and protrusions (5) protruding along the circumferential direction are formed on the joining surfaces but only at both end portions of the case body (12) in the pipe axis direction (KD) of the water pipe (K).