Fluid Apparatus Sealing via Integrated Female Threading Assembly
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Solution Overview
Problem
Conventional fluid apparatus unit structures face challenges in maintaining uniform sealing characteristics due to non-uniform compressive forces when using multiple fastening members, especially when handling slurried chemical fluids, which requires labor-intensive and skill-dependent operations to achieve effective sealing.
Innovation Solution
The fluid apparatus unit structure employs a female threading portion assembly with a linking member that distributes fastening force uniformly across the seal surface by integrating female threading portions on a base member, allowing for easy and uniform tightening of fastening members, thereby maintaining consistent sealing performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple fastening members are used to integrate the casing member with the base member, then the sealing characteristics can be improved, but the operation becomes labor-intensive and skill-dependent due to the difficulty of making fastening pressure uniform
Solution Approach 1:
Multiple female threading portions are integrated into a single female threading portion assembly, allowing multiple fastening members to be tightened simultaneously from both sides. This merging of fastening operations eliminates the need for sequential tightening and ensures uniform fastening pressure across all sealing surfaces, resolving the contradiction between reliable sealing and ease of operation.
Solution Approach 2:
The female threading portion assembly acts as an intermediary structure that coordinates the fastening force from multiple linking members. By integrating the threading portions into a single assembly, it mediates the distribution of fastening pressure uniformly across all sealing interfaces, making the operation simple while ensuring reliable sealing characteristics.
2Reliability
If multiple fastening members are used to ensure sealing characteristics, then the sealing performance can be improved, but the device complexity increases due to the need for uniform tightening of multiple members
Solution Approach 1:
The female threading portions are merged into a single integrated assembly rather than being separate components. This reduces device complexity by eliminating the need for multiple independent fastening structures while maintaining multiple sealing interfaces, thus improving sealing performance without increasing overall complexity.
Solution Approach 2:
The female threading portion assembly serves multiple functions simultaneously: it provides sealing surfaces for multiple casing members, distributes fastening force uniformly, and simplifies the tightening operation. This multi-functionality reduces the need for additional components, thereby reducing device complexity while ensuring reliable sealing performance.
3Object-affected harmful factors
If conventional fastening structures are used without O-rings, then the risk of contamination from O-ring solidification is reduced, but maintaining uniform sealing characteristics becomes difficult due to non-uniform compressive forces
Solution Approach 1:
Multiple sealing surfaces are integrated into a single female threading portion assembly that is tightened simultaneously from both sides. This merging ensures uniform compressive force distribution across all sealing interfaces without requiring O-rings, thus eliminating contamination risk while maintaining reliable sealing characteristics.
Solution Approach 2:
The female threading portion assembly acts as an intermediary that distributes compressive force uniformly across multiple sealing surfaces. This intermediary structure enables effective sealing without O-rings, thereby eliminating the risk of contamination from O-ring solidification while maintaining reliable sealing characteristics.
Data Source
Figure 1A~1B
Figure 2
Figure 3~4
AI summary
A fluid apparatus unit structure in which a uniform tightening force is easily applied over the entire periphery by tightening a plurality of fastening members to obtain an advantageous sealing performance is provided. In s fluid apparatus unit structure in which plural fluid apparatus components that are connected via flow paths are collected together and integrated onto a base member, a casing member for the fluid apparatus components is partitioned into plural members in the base member mating direction, a female threading portion assembly (19) in which plural nut portions (18a) that form female threading portions that communicate in the mating direction are integrated by a linking member (18b), is fit and installed on base side partitioned members of a casing member that is disposed at a position in close contact with a base member or a base members, and with base side member interposed therebetween, different fastening members are threaded and tightened from both sides of the nut portion (18a).