Cardiac Valve Drain Malodor Reflux Blocking Unit

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Solution Overview

Problem

Conventional drain trap systems fail to effectively block malodor reflux due to accumulation of foreign substances, which prevents the blocking plate from performing its lifting/lowering action, allowing malodors to enter indoor spaces.

Innovation Solution

A malodor reflux blocking unit using the cardiac valve principle, featuring radially disposed blocking portions and intermediate portions that utilize a water film phenomenon to block communication between the drain pipe and drain space, with closing portions that ensure effective sealing in a non-draining state and facilitate drainage in a draining state, and a form maintaining unit to prevent the unit from being sucked into the drain pipe.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional blocking plate is used to prevent malodor reflux, then malodor blocking is achieved in clean conditions, but the blocking plate fails to function when foreign substances accumulate on it

Engineering Contradiction:
Improvemalodor blocking reliabilityVSAvoidblocking plate operability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The blocking plate is divided into multiple blocking portions (first blocking portion, second blocking portion, third blocking portion) arranged radially around the drain space. This segmentation ensures that even if some portions are blocked by foreign substances, other portions remain functional to prevent malodor reflux.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The blocking portions are arranged radially in a planar configuration rather than using a single vertical blocking plate. This dimensional change from a single-point blocking mechanism to a distributed radial blocking system allows the structure to maintain functionality even when部分 blocking portions are obstructed by foreign substances.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If a blocking structure is installed to prevent malodor reflux, then malodor blocking is achieved, but drainage water discharge is hindered

Engineering Contradiction:
Improvemalodor blocking effectivenessVSAvoiddrainage water discharge efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The blocking portions are designed to be dynamically adjustable based on water flow conditions. During drainage, the blocking portions move to positions that allow water discharge; during non-drainage periods, they return to blocking positions to prevent malodor reflux. This dynamic behavior resolves the contradiction between blocking effectiveness and drainage efficiency.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The blocking portions operate periodically - blocking during non-drainage periods and opening during drainage periods. This periodic action allows the system to alternately prioritize malodor blocking and water discharge, achieving both functions effectively over time.

Inventive Principle:
Principle #19Periodic action

3Reliability

If blocking portions are radially disposed to improve malodor blocking, then blocking effectiveness is enhanced, but device complexity increases

Engineering Contradiction:
Improvemalodor blocking effectivenessVSAvoidblocking unit structural complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Multiple blocking portions are merged into a single integrated structure that rotates as one unit. This merging approach maintains the radial configuration for effective malodor blocking while reducing the number of independent moving parts, thereby controlling device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The radially disposed blocking portions serve multiple functions: they block malodors when in the blocking position, allow water discharge when in the drainage position, and can be cleaned by the vortex flow. This multi-functionality justifies the increased structural complexity by delivering multiple benefits from a single configuration.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Ease of operation

If the blocking unit allows free movement for lifting/lowering action, then drainage function is achieved, but the unit may be sucked into the drain pipe by external forces

Engineering Contradiction:
Improveblocking plate mobilityVSAvoidunit position stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The form maintaining unit changes the physical parameters of the blocking unit by providing buoyant force and structural support. This allows the blocking portions to move freely for drainage operation while preventing the unit from being sucked into the drain pipe under external forces such as water pressure or suction.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The form maintaining unit acts as a counterbalancing element that provides upward buoyant force to counteract the downward suction force that could pull the blocking unit into the drain pipe. This anti-weight mechanism maintains position stability while allowing necessary movement for drainage function.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution effectively prevents malodor reflux while allowing for the discharge of drainage water, maintaining a clean indoor environment by ensuring the malodor reflux blocking unit remains in place and functions effectively despite external forces.

Implementation Method 1

blocking portions which are, in a non-draining state, disposed to face each other and configured to block communication between the drain pipe and the drain space due to a water film phenomenon which occurs due to drainage water being present between the blocking portions

Methodology Applied
Scientific EffectWater film phenomenon: Capillary Action

Implementation Method 2

in a draining state, allow the drainage water to be discharged to the drain pipe through a first discharge space provided by the first-first blocking portion and the first-second blocking portion being spaced apart from each other due to the drainage water passing through the drain space

Methodology Applied
Scientific EffectHydraulic pressure: Pressure Gradient

Implementation Method 3

a form maintaining unit inserted into the space providing portion to, when the malodor reflux blocking unit using the cardiac valve principle is installed in the drain hole, prevent the malodor reflux blocking unit using the cardiac valve principle from being sucked into the drain pipe due to the drainage water passing through the drain space

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Data Source

PatentUS11920332B2Malodor reflux blocking unit using cardiac valve principle and malodor reflux blocking device including the same
Publication Date: 2024.03.05 CHO HYUN SEUNG
  • US11920332B2 patent drawing
  • US11920332B2 patent drawing
  • US11920332B2 patent drawing

AI summary

A malodor reflux blocking unit using the cardiac valve principle, includes a space providing portion inserted into the drain pipe through the drain hole and configured to provide a drain space for the drainage, blocking portions which are, in a non-draining state, disposed to face each other and configured to block communication between the drain pipe and the drain space due to a water film phenomenon which occurs due to drainage water being present between the blocking portions, and intermediate portions configured to mediate connection between the blocking portions and the space providing portion.