Reinforced Gland Layout for Pipe Joints in Tight Workspaces
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Solution Overview
Problem
Conventional pipe joint systems face challenges in workability due to limited space between the gland and obstacles, making it difficult to insert bolts and tighten nuts, especially when joining pipes in grooves or around walls.
Innovation Solution
The gland features an extended interval region with a reinforcing member, allowing for larger intervals between fastener insertion holes, which can face obstacles, thereby increasing workability even in confined spaces. This configuration maintains rigidity and prevents deformation under reaction forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the gland is coupled to the socket with bolts and nuts using equal intervals between bolt insertion holes, then the structural balance and rigidity are maintained, but the workability becomes poor when the distance between the bolt insertion hole and obstacle is small
Solution Approach 1:
The patent applies asymmetry by changing from equal intervals to extended intervals between bolt insertion holes. Specifically, the distance between at least one bolt insertion hole and its adjacent bolt insertion holes is made larger than the distances between other adjacent bolt insertion holes. This asymmetric arrangement creates more workspace around certain bolt holes, improving ease of operation when obstacles are present, while maintaining sufficient structural balance through strategic positioning.
Solution Approach 2:
The patent applies local quality by creating localized extended intervals between specific bolt insertion holes rather than uniformly changing all intervals. This allows the gland to maintain overall structural balance while providing localized areas with improved workability. The extended interval region is specifically positioned to address workspace constraints near obstacles, making the structure adaptable to different installation environments.
2Ease of operation
If the distance between the bolt insertion hole and the bottom of the groove is extended to improve workability, then the work area required increases
Solution Approach 1:
The patent uses asymmetric interval distribution to concentrate the extended workspace needs in specific directions rather than requiring uniform expansion in all directions. By making only certain intervals between bolt insertion holes larger, the design achieves improved workability for critical bolt holes while minimizing the overall area increase of the gland structure.
3Ease of operation
If the interval between fastener insertion holes is increased to improve workability, then the rigidity of the gland structure may be reduced
Solution Approach 1:
The patent applies local quality by implementing extended intervals only in specific regions where workspace is constrained by obstacles, rather than uniformly increasing all intervals. This localized approach allows the gland to maintain overall rigidity while providing sufficient workspace in critical areas. The extended interval region is strategically positioned to address workability issues without compromising the structural integrity of the entire gland.
Data Source
AI summary
This invention provides a push ring 14 that is fitted over a spigot, that faces an open end surface of a socket from the outside, that is connected to the socket by a plurality of fasteners, and the pushes a sealing material into the socket. The push ring has a pressing surface that presses the sealing material, a plurality of fastener insertion holes 21 into which the fasteners are inserted, equally-spaced regions 29 in which the intervals between the fastener insertion holes 21 in the circumferential direction A are maintained at even intervals S1, and an enlarged internal region 30 in which intervals S2 between any two fastener insertion holes 21 adjacent in the circumferential direction A is larger than the equal intervals S1, the enlarged interval region 30 being provided with a reinforcing member 23.