Integrated Nozzle Assembly for Compact Dual-Function Toilet Flushing

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Solution Overview

Problem

Existing smart toilets have separate spray pipes and spray heads that occupy significant space, require complex structures, and are inconvenient to install due to the need for additional sealing protection.

Innovation Solution

A spray pipe assembly that integrates a flushing nozzle for human body and a flushing spray head for the toilet cavity into a single device, with all water pipes arranged within a pipe body, reducing installation space and simplifying the structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate spray pipe and spray head are used, then independent flushing functions are achieved, but device complexity and installation space increase

Engineering Contradiction:
Improveindependent flushing functionsVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the spray pipe and spray head into a single integrated flushing device. The spray pipe is positioned at the front end of the pipe body, and the spray head is arranged on the side of the pipe body, with both components integrated into one structure rather than being separate independent units. This merging reduces the number of separate components while maintaining independent water supply channels for each function.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated flushing device serves multiple functions through a single unified structure. The spray pipe provides flushing for human body, while the spray head provides flushing for the toilet cavity. Both functions are achieved through the same integrated device with separate water supply channels, making the device multi-functional without requiring separate independent units.

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

2Adaptability or versatility

If separate spray pipe and spray head are used, then independent flushing functions are achieved, but installation space and volume increase

Engineering Contradiction:
Improveindependent flushing functionsVSAvoidinstallation space
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent combines the spray pipe and spray head into a single integrated flushing device. The spray pipe is positioned at the front end of the pipe body, and the spray head is arranged on the side of the pipe body, with both components integrated into one structure rather than being separate independent units. This merging reduces the number of separate components while maintaining independent water supply channels for each function.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The spray head is arranged on the side of the pipe body in a compact configuration that utilizes the space efficiently. The water supply channels are arranged within the pipe body structure, with the spray pipe water supply channel and spray head water supply channel independently arranged but integrated within the same overall device volume, reducing total installation space.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Reliability

If additional sealing protection structure is added, then sealing reliability is improved, but device complexity and installation convenience deteriorate

Engineering Contradiction:
Improvesealing reliabilityVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the spray pipe and spray head into a single integrated flushing device. The spray pipe is positioned at the front end of the pipe body, and the spray head is arranged on the side of the pipe body, with both components integrated into one structure rather than being separate independent units. This merging reduces the number of separate components while maintaining independent water supply channels for each function.

Inventive Principle:
Principle #5Merging (Combining)

4Reliability

If additional sealing protection structure is added, then sealing reliability is improved, but installation convenience deteriorates

Engineering Contradiction:
Improvesealing reliabilityVSAvoidinstallation convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent combines the spray pipe and spray head into a single integrated flushing device. The spray pipe is positioned at the front end of the pipe body, and the spray head is arranged on the side of the pipe body, with both components integrated into one structure rather than being separate independent units. This merging reduces the number of separate components while maintaining independent water supply channels for each function.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4335985B1Nozzle assembly, nozzle device and toilet seat
Publication Date: 2025.08.13 SHANGHAI KOHLER ELECTRONICS TECH
  • EP4335985B1 patent drawingFigure 1~2
  • EP4335985B1 patent drawingFigure 3~4
  • EP4335985B1 patent drawingFigure 5~6

AI summary

The application relates to a spray pipe assembly, a spray pipe device, and a toilet, comprising a pipe body (1) having a mounting channel (11) and a flushing device (2) removably mounted at the front of the pipe body (1); the flushing device (2) comprises a device main body (21) with a mounting cavity (211), a flushing nozzle (22) for flushing a human body and a flushing spray head (23) for flushing a toilet cavity (71). According to the spray pipe assembly, the spray pipe device and the toilet disclosed by the application, the flushing device (2) is integrated with a flushing nozzle (22) and a flushing spray head (23), so that all the water pipes (6) can be arranged in the pipe body (1), which saves the installation space, reduces the volume, simplifies the structure and facilitates the installation.