Polygonal Water Sprayer Switching Structure for Tactile Alignment

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Solution Overview

Problem

Conventional gardening water sprayers face issues with small, easily worn-off icons for alignment, requiring constant visual attention and manual alignment, which complicates use and increases production costs.

Innovation Solution

A water switching structure featuring a polygonal barrel part with staggered reference planes and lines, and a polygonal water spray head with calibration planes and lines, allowing alignment through tactile recognition without the need for printed icons, simplifying manufacturing and reducing wear.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If printed icons are used for alignment identification, then alignment guidance is provided, but the icons are easily worn off and cannot continue to provide alignment during subsequent use

Engineering Contradiction:
Improvealignment identification durabilityVSAvoidmanufacturing process complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent removes the printed icons from the sprayer body and spray head, replacing them with tactile reference features (protrusions and grooves) that are inherently part of the structure. This extraction eliminates the wear problem of printed icons while maintaining alignment functionality through physical geometric features that don't degrade.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the alignment identification method from visual (printed icons) to tactile (physical protrusions and grooves). This parameter change from surface printing to structural geometry provides durable alignment features that can be felt and positioned without visual attention, solving both durability and manufacturing issues.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If printed icons are used for alignment, then alignment guidance is provided, but the user must stare at the icons continuously and cannot complete alignment by touch alone

Engineering Contradiction:
Improvealignment operation convenienceVSAvoidalignment information accessibility
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The patent replaces the visual alignment system with a tactile mechanical system. The protrusions and grooves engage physically, allowing the user to align components by touch alone without needing to visually track printed icons. This substitution from visual to tactile-mechanical alignment improves ease of operation and prevents loss of alignment information.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The tactile reference features enable the alignment system to serve itself through physical contact. The protrusions and grooves automatically guide alignment when the components are brought together, eliminating the need for continuous visual monitoring and allowing hands-only operation.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If printed icons are used for alignment, then alignment identification is provided, but the small icons are relatively difficult to provide accurate alignment

Engineering Contradiction:
Improvealignment precisionVSAvoidalignment feature size
Core Design Contradiction:
Measurement precisionVSArea of stationary object

Solution Approach 1:

The patent transitions alignment features from two-dimensional printed icons on the surface to three-dimensional protrusions and grooves with depth and volume. This dimensional change creates larger, more easily detectable tactile features that provide better alignment precision while increasing the effective area of the alignment interface.

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

Data Source

PatentUS20250262628A1Water switching structure of gardening water sprayer
Publication Date: 2025.08.21 SHIN TAI SPURT WATER OF THE GARDEN TOOLS CO LTD
  • US20250262628A1 patent drawing
  • US20250262628A1 patent drawing
  • US20250262628A1 patent drawing

AI summary

A water switching structure of a gardening water sprayer includes a water sprayer body and a water spray head. The water sprayer body has a grip part and a barrel part. The barrel part is designed in a polygonal shape so that multiple reference planes and multiple reference lines are formed on the outer periphery of the barrel part. The reference line is used to provide a connection between two adjacent reference planes so that the reference plane and the reference line can be staggered on the barrel part. The end ring of the water spray head is provided with a plurality of spray holes that can spray different water spray shapes, and the water spray head is designed in a polygonal shape. A plurality of calibration plane and a plurality of calibration lines are formed staggered around the outer circumference of the water spray head.