Filter Hose Support Cage Coupling Ring Design

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Solution Overview

Problem

Existing filter support cages for filter hoses in power plants and waste incineration plants suffer from low stability and damage to the filter hoses due to inadequate connection methods, leading to potential detachment and wear, necessitating reinforcement which complicates assembly and increases maintenance.

Innovation Solution

A support cage design featuring a coupling ring with a bead that subdivides it into two equal parts, providing receptacles for precise ring fitting, ensuring a secure connection and preventing axial twisting, thus eliminating the need for hose reinforcement at connection points.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the free ends of longitudinal rods are constricted to connect adjacent baskets, then assembly is simplified, but the connection stability decreases and longitudinal rods may protrude and damage the filter hose

Engineering Contradiction:

Improveassembly simplicityVSAvoidconnection stability

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The coupling ring is designed to receive the drawn-in end of the longitudinal rod inside its cavity, creating a nested structure where one component fits within another. This nesting arrangement secures the rod end within the coupling ring, preventing protrusion and maintaining connection stability while preserving easy assembly.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Reliability

If two inner rings are welded on the inside of one basket to connect adjacent baskets, then connection is achieved, but sharp edges form at the ends of longitudinal rods causing heavy wear to the filter hose

Engineering Contradiction:

Improveconnection reliabilityVSAvoidfilter hose wear

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

Instead of having the longitudinal rod end form a sharp edge that contacts the filter hose, the invention inverts the arrangement by placing a coupling ring with a cavity that receives and encloses the rod end. This reverses the harmful geometry, replacing the sharp edge with a rounded, enclosed structure that eliminates wear on the filter hose while maintaining connection reliability.

Inventive Principle:

Principle #13The other way round (Inversion)

3Ease of manufacture

If the coupling ring is designed without a bead, then manufacturing is simpler, but the coupling ring lacks stability and does not effectively prevent twisting of adjacent support bodies

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidcoupling ring stability

Core Design Contradiction:

Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The coupling ring is segmented by the bead into two distinct areas, creating a divided structure that enhances stability. The bead acts as a structural divider that prevents twisting while maintaining manufacturing simplicity. This segmentation provides geometric constraints that stabilize the coupling ring without requiring complex manufacturing processes.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP1779915B2Supporting basket for filter hoses

Publication Date: 2015.05.06 VOSS & EIFFERT

Figure 1
Figure 2~3
Figure 4

AI summary

A support basket for a filter hose, for incoming air/exhaust at a power station etc., comprises longitudinal rods (2) and rings (3) distributed over the length of the rods. At least one end ring (5), with a gap (6), is held by a coupling ring (7) at a neighboring basket, which has a bead (71) around its center line.