Floating Joint Retainer for Non-Coaxial Coupler Alignment

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Solution Overview

Problem

The existing server cabinet designs face challenges in correcting radial offset between couplers without using guide posts and guide seats, leading to increased assembly time, cost, wear, and potential water leakage due to frictional contact during coupler connection.

Innovation Solution

A floating joint and retainer connection structure comprising a fixed retainer, an adaptor joint, and a retaining element, which allows radial correction of couplers using a beveled guiding surface and radial movement of the adaptor joint relative to the fixed retainer, eliminating the need for guide posts and seats.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If guide posts and guide seats are provided to correct radial offset between couplers, then radial alignment is improved, but space occupied in server cabinet increases

Engineering Contradiction:
Improveradial alignmentVSAvoidspace occupied
Core Design Contradiction:
Manufacturing precisionVSVolume of stationary object

Solution Approach 1:

The patent extracts the radial correction function from the traditional guide post and guide seat structure, integrating it into a compact retainer assembly that can be mounted directly on the server cabinet without requiring separate guiding components, thereby reducing space occupation while maintaining alignment precision

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent combines multiple functions (radial correction, positioning, and retention) into a single integrated retainer structure that houses both the correction mechanism and the mounting function, eliminating the need for separate guide posts and seats

Inventive Principle:
Principle #5Merging (Combining)

2Volume of stationary object

If guide posts and guide seats are omitted to save space, then space occupied is reduced, but assembly precision and time increase

Engineering Contradiction:
Improvespace occupiedVSAvoidradial alignment
Core Design Contradiction:
Volume of stationary objectVSManufacturing precision

Solution Approach 1:

The retainer assembly pre-establishes the correct radial position and orientation before the coupler is inserted, so that the alignment correction happens automatically during insertion without requiring high-precision pre-positioning or complex adjustment procedures

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The retainer acts as an intermediary component between the server cabinet and the coupler, providing a controlled interface that guides the coupler into proper alignment while accommodating tolerance variations, thus simplifying the assembly process

Inventive Principle:
Principle #24Intermediary (Mediator)

3Manufacturing precision

If radial offset is corrected by direct frictional contact between couplers, then alignment is achieved, but wear and damage occur causing leakage

Engineering Contradiction:
Improveradial alignmentVSAvoidseal integrity
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The retainer assembly provides a cushioning effect by allowing controlled radial movement and absorption of impact forces during coupler insertion, preventing direct collision between the coupler ends and protecting sealing elements from damage

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The retainer serves as a protective intermediary that absorbs the mechanical stress and misalignment forces, preventing direct harmful contact between the coupler components and preserving the integrity of sealing elements

Inventive Principle:
Principle #24Intermediary (Mediator)

4Volume of stationary object

If high-precision fit is required to omit guide posts, then space is saved, but assembly time and labor increase

Engineering Contradiction:
Improvespace occupiedVSAvoidassembly time
Core Design Contradiction:
Volume of stationary objectVSLoss of time

Solution Approach 1:

The retainer assembly pre-establishes the correct radial position and orientation before the coupler is inserted, so that the alignment correction happens automatically during insertion without requiring high-precision pre-positioning or complex adjustment procedures

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system enables self-alignment through the retainer's built-in correction mechanism, where the coupler automatically finds its proper position during insertion without requiring external guidance or precise pre-positioning by the assembler

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20260009603A1Floating joint and retainer connection structure
Publication Date: 2026.01.08 SHENZHENFOSITEKTELECOMCO LTD
  • US20260009603A1 patent drawing
  • US20260009603A1 patent drawing
  • US20260009603A1 patent drawing

AI summary

A floating joint and retainer connection structure includes a hollow fixed retainer having a first side and a second side provided with a through hole; an adaptor joint including a hollow guiding section having a beveled guiding surface formed along a rim of a free end thereof, and a pipe connecting section including an engaging end and a pipe fitting end extending through the fixed retainer to project from the through hole on the second side thereof; and a retaining element fitted on around an outer surface of the pipe connecting section, such that the adaptor joint is limited from moving axially but is movable radially relative to the fixed retainer. When two non-coaxial couplers are to be connected end to end, the beveled guiding surface is helpful to correct the radial offset between the two couplers, allowing them to be connected without causing wear and water leakage.