Hose Connection Module With Fixing Protrusions for Leak-Tight Assembly

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Solution Overview

Problem

Existing water treatment devices face challenges in securely connecting filters and hoses due to complex assembly structures, leading to increased manufacturing costs and potential water leakage issues.

Innovation Solution

A hose connection module featuring a connector with ring-shaped fixing protrusions and a flexible water ejection hose, along with a fixing cap that enhances coupling force and prevents separation, ensuring airtight connections and easy assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a metal nipple or separate assembly member is used to connect the connection hose to the filter head, then water leakage is prevented through tight connection, but the assembly structure becomes complicated and manufacturing cost increases

Engineering Contradiction:

Improveconnection tightnessVSAvoidassembly structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent integrates the connection hose directly into the filter head by forming the hose as an integral part of the filter head structure through injection molding. This eliminates the need for separate assembly members like metal nipples, thereby simplifying the assembly structure while maintaining reliable water-tight connection through the integrated design and embedded sealing member.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The filter head is designed to perform multiple functions: it serves as both the filtering component housing and the connection structure for the water ejection hose. The integrated filter head structure combines the functions of filtration, structural support, and hose connection, eliminating the need for separate connection components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If a metal nipple or separate assembly member is used to connect the connection hose to the filter head, then water leakage is prevented through tight connection, but manufacturing cost increases

Engineering Contradiction:

Improveconnection tightnessVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The connection hose and filter head are manufactured as a single integrated component using injection molding technology. This eliminates the need for separate manufacturing processes for metal nipples and assembly operations, thereby reducing manufacturing costs while ensuring reliable water-tight connection through the integrated structure and embedded sealing member.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent replaces expensive metal nipples with a cost-effective synthetic resin filter head that is molded to include the connection structure. The use of injection-molded plastic components with embedded sealing members provides a economical alternative to metal assembly members while maintaining connection reliability.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Reliability

If different materials (metal assembly member and synthetic resin filter body) are used for connection, then tight connection is achieved, but leakage points may be caused due to fastening of different materials

Engineering Contradiction:

Improveconnection tightnessVSAvoidmachine part precision

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The patent uses the same synthetic resin material for both the filter head body and the connection hose, creating a homogeneous structure. The hose is formed as an integral part of the filter head through injection molding, eliminating the need to fasten different materials together. A sealing member is embedded in the homogeneous structure to prevent leakage, avoiding the precision issues associated with joining dissimilar materials.

Inventive Principle:

Principle #33Homogeneity

4Reliability

If the number of components for assembling is increased, then connection reliability is improved, but workability of filter assembly degrades

Engineering Contradiction:

Improveconnection reliabilityVSAvoidworkability

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent combines multiple components (filter head, connection hose, and sealing structure) into a single integrated filter head assembly manufactured by injection molding. This reduces the number of parts that need to be assembled while maintaining connection reliability through the integrated design and embedded sealing member, thereby improving workability.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The sealing member is pre-positioned and embedded within the filter head structure during the injection molding process. This preliminary action ensures proper sealing alignment and eliminates the need for separate sealing operations during assembly, thereby maintaining connection reliability while simplifying the assembly process and improving workability.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11796098B2Hose connection module for water treatment device

Publication Date: 2023.10.24 LG ELECTRONICS INC

AI summary

A hose connection module including a connector having a first side configured to receive liquid and a second side opposite the first side, wherein a plurality of ring-shaped fixing protrusions are formed on an outer circumferential surface of the second side and are spaced apart from each other in a flow direction of liquid, an ejection hose formed of an elastic material and configured to surround the outer circumferential surface of the second side of the connector, and a hollow fixing cap configured to press the water ejection hose from the outside of the ejection hose.