Multifunctional Pull-Out Spray Head with Single-Button Switching

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Solution Overview

Problem

Existing pull-out spray heads for wash basins have limited functions, requiring additional buttons and waterways to increase functionality, leading to larger and heavier designs that are costly and inconvenient to use.

Innovation Solution

A multifunctional pull-out spray head with three spray modes and a pause function, featuring a switching assembly with multiple water-passing chambers and valves controlled by a single button, allowing for compact and user-friendly operation while reducing production costs through shared component structures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the number of buttons and waterways is increased to provide more spray modes, then the functionality of the spray head is improved, but the size and weight of the spray head increases

Engineering Contradiction:
ImprovefunctionalityVSAvoidweight
Core Design Contradiction:
Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The patent implements multi-functionality by enabling a single button to control multiple spray modes (first spray mode, second spray mode, and pause function) through a switching assembly with multiple water-passing chambers. This allows one component to perform multiple functions, increasing versatility without proportionally increasing size or weight.

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

Solution Approach 2:

The switching assembly employs a nested structure where multiple water-passing chambers are arranged within the same button actuation space. The first and second water-passing chambers are positioned such that a single button can selectively activate different chambers, effectively nesting multiple functional pathways within a compact spatial envelope.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Adaptability or versatility

If the number of buttons and waterways is increased to provide more spray modes, then the functionality of the spray head is improved, but the production cost increases

Engineering Contradiction:
ImprovefunctionalityVSAvoidproduction cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The single button serves multiple functions by controlling different spray modes through the switching assembly's water-passing chambers. This multi-functionality reduces the total number of components needed, thereby lowering manufacturing complexity and production costs while maintaining enhanced functionality.

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

Solution Approach 2:

The patent merges the control functions for different spray modes into a single button mechanism. By combining multiple control functions into one component rather than using separate buttons for each mode, the design reduces part count and assembly complexity, directly reducing production costs.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If the number of buttons and waterways is increased to provide more spray modes, then the functionality of the spray head is improved, but the structure becomes larger and heavier

Engineering Contradiction:
ImprovefunctionalityVSAvoidsize
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The switching assembly uses a nested arrangement where multiple water-passing chambers are contained within the same button actuation volume. This nesting allows multiple functional pathways to occupy overlapping or adjacent spaces without requiring proportional increases in overall device volume.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The single button is designed as a universal control element that can activate different spray modes by selectively opening different water-passing chambers. This multi-functional design achieves enhanced functionality without requiring additional buttons or proportional increases in structural volume.

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

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 provides a compact, user-friendly, and cost-effective multifunctional spray head with three distinct spray modes and a pause function, enhancing user experience and reducing production costs by utilizing interchangeable component structures.

Implementation Method 1

The first return spring presses the first sealing portion to be movably fitted to the opening of the first chamber

Methodology Applied
Scientific EffectElastic force: Elasticity

Implementation Method 2

The second return spring presses the second sealing portion to be movably fitted to the opening of the second chamber

Methodology Applied
Scientific EffectElastic force: Elasticity

Implementation Method 3

The third return spring presses the third sealing portion to be movably fitted to the opening of the third chamber

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentUS11167294B2Multifunctional pull-out spray head
Publication Date: 2021.11.09 XIAMEN FOR BETTER SANITARY WARE
  • US11167294B2 patent drawing
  • US11167294B2 patent drawing
  • US11167294B2 patent drawing

AI summary

A multifunctional pull-out spray head includes a switching assembly, a water inlet assembly, and a water outlet assembly. The switching assembly controls three waterways of a switching assembly main body through a first button, a first switching unit and a second switching unit. The water inlet assembly realizes on-off control of the switching assembly. The spray head realizes the switching of three spray modes and meets the user's demand for multiple functions. The overall structure is compact, the size is small, and the operation is convenient.