Closestool Base Open Water Draining Channel Insect Prevention

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Solution Overview

Problem

Existing closestool bases face challenges in automatic inner wall cleaning, as water stains and dirt accumulation in closed water draining passages make them difficult to clean, and hidden passages can harbor insects, compromising sanitation.

Innovation Solution

A closestool base design featuring an open water draining channel, a water flowing pipe with a water storage cavity, and a semicircular water baffle plate with vertical ribs, allowing for efficient water distribution and automatic cleaning of the inner wall, eliminating the need for closed passages and reducing insect infestation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If a closed water draining passage is used to achieve automatic cleaning, then the inner wall can be cleaned automatically, but water stains accumulate and dirt hides in the passage making it difficult to clean

Engineering Contradiction:
Improveautomatic cleaningVSAvoidcleaning accessibility
Core Design Contradiction:
Extent of automationVSEase of operation

Solution Approach 1:

The patent extracts the water outlet from the closed passage structure and positions it at the upper edge of the inner wall, allowing the passage to be open rather than enclosed. This enables automatic cleaning functionality while making the passage accessible for manual cleaning of accumulated dirt and water stains.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The water draining system is segmented into distinct functional zones: an open water draining passage for accessibility, a washing water outlet hole positioned at the upper edge for automatic cleaning, and a water storage cavity. This segmentation allows each component to fulfill its function without compromising the others.

Inventive Principle:
Principle #1Segmentation

2Shape

If the washing water outlet hole is hidden in the inner side of the water draining passage for aesthetics, then appearance is improved, but the closestool becomes more difficult to clean

Engineering Contradiction:
Improveaesthetic appearanceVSAvoidcleaning accessibility
Core Design Contradiction:
ShapeVSEase of operation

Solution Approach 1:

The water outlet hole is positioned at the upper edge of the inner wall rather than being hidden within the passage. This local positioning provides aesthetic integration while maintaining accessibility for cleaning, as the outlet is exposed at a reachable location rather than concealed deep within the passage structure.

Inventive Principle:
Principle #3Local quality

3Loss of substance

If no water exists in the draining passage, then water consumption is reduced, but insects can climb in from the washing water outlet hole

Engineering Contradiction:
Improvewater consumptionVSAvoidinsect infestation
Core Design Contradiction:
Loss of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a water seal mechanism where water stored in the water storage cavity acts as an intermediary barrier. This water seal prevents insects from climbing up the open water draining passage from the washing water outlet hole, while allowing the passage to remain open and accessible for cleaning.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 design ensures easy cleaning, reduces water consumption, and effectively prevents insect infestation, while maintaining structural durability and simplicity, enhancing the flushing and dirt discharge capabilities with reduced water usage.

Implementation Method 1

water enters into the water draining passage from the water tank and then flows out from a washing water outlet hole

Methodology Applied
Scientific EffectFluid flow:

Implementation Method 2

the water storage cavity is arranged between the water outlet of the water flowing pipe and the water inlet of the water flowing pipe

Methodology Applied
Scientific EffectWater storage:

Implementation Method 3

an open water draining channel is adopted for taking the place of a closed water draining passage, so that the closestool is convenient to clean, and insect pests such as cockroaches cannot be hidden in the closestool

Methodology Applied
Scientific Effect:

Data Source

PatentEP2944730B1Closestool base
Publication Date: 2017.11.08 FOSHAN ROYALKING SANITARY WARE CO LTD
  • EP2944730B1 patent drawingFigure 1
  • EP2944730B1 patent drawingFigure 2~3
  • EP2944730B1 patent drawingFigure 4

AI summary

The present invention discloses a closestool base. The closestool base comprises a water draining channel (1), a water flowing pipe (6), a water storage cavity (4) and a water baffle plate (5), wherein the water draining channel (1) is formed in the upper part of the inner wall (7) of the closestool base in an encircling way; a water inlet (2) of the water flowing pipe (6) is communicated with a water tank and is arranged in the back of the closestool base; a water outlet (3) of the water flowing pipe (6) faces to the inner wall (7) of the closestool base; the water storage cavity (4) is arranged between the water outlet (3) of the water flowing pipe (6) and the water inlet (2) of the water flowing pipe (6), and the water draining capability of the water inlet (2) is higher than that of the water outlet (3); the water baffle plate (5) for covering the water outlet (3) is arranged at the upper part of the closestool base, a gap is formed between the left end and the right end of the water baffle plate (5) and the water draining channel (1), and a gap is formed between the lower end of the water baffle plate (5) and the inner wall (7) of the closestool base; two vertical ribs (51) are arranged at the back of the water baffle plate (5), the vertical ribs (51) face to the water outlet (3), and the water baffle plate (5), the vertical ribs (51) and the water storage cavity (4) are integrally formed in a firing way with the closestool base respectively.