Injection member assembly

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Solution Overview

Problem

Existing injection member assemblies for bidets suffer from jittering and slipping issues during the extension and retraction of the injection member, which affects their stability and operational smoothness.

Innovation Solution

A compact and durable injection member assembly is achieved by immovably fixing the driving assembly to the bracket assembly, utilizing a motor-driven gear system with a dentate guiding surface to minimize jittering and slipping, allowing the injection member to extend and retract smoothly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a driving assembly is provided to realize extension and retraction of the injection member, then the functionality is improved, but jittering and slipping occur during operation

Engineering Contradiction:
Improveextension and retraction functionVSAvoidoperational stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The guiding surface is designed with a curved shape that matches the arcuate path of the injection member's movement. This curved guiding surface ensures continuous contact and proper engagement between the driving gear and the guiding surface throughout the extension and retraction cycle, eliminating jittering and slipping while maintaining smooth operation.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent introduces a guiding surface as an intermediary element between the driving assembly and the bracket assembly. This guiding surface acts as a mediator that translates the rotational motion of the driving gear into smooth linear motion of the injection member, ensuring stable operation without direct rigid connection that would cause jittering.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the driving assembly is coupled with the incurved segment of the bracket assembly, then jittering is minimized, but the device complexity increases

Engineering Contradiction:
Improvejitter reductionVSAvoiddriving assembly structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The driving assembly is integrated with the bracket assembly by coupling the driving gear directly to the incurved segment of the bracket. This merging of components eliminates the need for separate mounting structures and reduces overall device complexity while maintaining the jitter-reducing benefits of the curved engagement surface.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The incurved segment of the bracket assembly provides a curved engagement surface that naturally guides the driving gear's motion. This curved geometry simplifies the overall structure by eliminating the need for additional guiding mechanisms while effectively minimizing jittering through proper force distribution.

Inventive Principle:
Principle #14Spheroidality (Curvature)

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 ensures stable and jitter-free operation of the injection member, enabling smooth extension and retraction, enhancing the overall performance and durability of the bidet system.

Implementation Method 1

a driving assembly (60) which comprises a driving device (62) and a coupling member (64), wherein the driving device (62) is used for moving the injection member (40) and comprises a motor

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Implementation Method 2

a dentate guiding surface (84) is coupled onto the bracket assembly (80), wherein the coupling gear (68) engages with the dentate guiding surface (84)

Methodology Applied
Scientific EffectGear meshing: Gear

Data Source

PatentEP2503070B1Injection member assembly
Publication Date: 2019.10.09 SHANGHAI KOHLER ELECTRONICS TECH
  • EP2503070B1 patent drawingFigure 1
  • EP2503070B1 patent drawingFigure 2
  • EP2503070B1 patent drawingFigure 3

AI summary

An injection member assembly (30) includes a movable injection member (40), a bracket (82) provided with a guiding surface (84) and a driving assembly (60). The driving assembly (60) includes a driving device (62) and a coupling member (64) coupled with the guiding surface (84), and the movable injection member (40) is connected to at least one of the driving assembly (60) and the bracket (82).