Water Spray Gun Outlet Locking Structure for Hands-Free Flow Control

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Solution Overview

Problem

Conventional water spray guns require continuous pressing, leading to hand fatigue, discomfort, and increased risk of joint pain and soft tissue injuries due to prolonged use.

Innovation Solution

A water outlet control structure with a rotatable water spray gun head and a clamping piece that allows for automatic operation by sliding grooves and limiting blocks, enabling flexible control of water flow without continuous manual pressure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If continuous pressing of the spray head handle is required to maintain water flow, then water flow control is achieved, but hand fatigue and muscle strain occur

Engineering Contradiction:

Improvewater flow controlVSAvoidhand fatigue

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The spray gun system performs the water flow control function automatically through the trigger mechanism and valve system, eliminating the need for continuous manual pressing. The trigger is pulled once to initiate flow, and the system maintains control through its internal mechanical linkage and valve positioning, allowing the device to serve itself rather than requiring continuous user intervention.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The trigger mechanism is designed to be pulled once in advance to set the water flow in motion. The mechanical linkage and valve system are pre-configured to maintain the open position after the initial trigger pull, so the preliminary action of pulling the trigger suffices to establish continuous flow without requiring sustained pressure.

Inventive Principle:

Principle #10Preliminary action

2Duration of action of stationary object

If continuous force is applied to the handle to maintain water spray, then water flow is sustained, but finger joint pressure increases

Engineering Contradiction:

Improvewater flow durationVSAvoidfinger joint pressure

Core Design Contradiction:

Duration of action of stationary objectVSStress or pressure

Solution Approach 1:

The valve mechanism and mechanical linkage system automatically maintain the water flow open position once triggered, transferring the sustaining function from the user's finger to the device's internal components. The system self-maintains the flow state through its mechanical design, eliminating continuous finger pressure requirements.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The trigger mechanism is designed so that a single preliminary pull action establishes the water flow state. The mechanical components are configured to hold the valve open position after the initial trigger displacement, allowing sustained water flow duration without requiring the user to maintain force application.

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If the handle is continuously pressed to control water spray, then water flow control is maintained, but soft tissue injury risk increases

Engineering Contradiction:

Improvewater flow controlVSAvoidinjury risk

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The spray gun's mechanical linkage and valve system automatically maintain water flow control after initial triggering, transferring the control function from continuous manual pressing to the device's self-regulating mechanical components. This eliminates the need for sustained finger pressure that could cause soft tissue injury.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The trigger mechanism is designed to perform the control function through a single preliminary pulling action. The mechanical components are configured to maintain the valve in the open position after the initial trigger displacement, allowing sustained water flow without requiring continuous user input that could lead to injury.

Inventive Principle:

Principle #10Preliminary action

4Productivity

If manual pressing is required for automatic water spray operation, then water flow is controlled, but operator comfort decreases

Engineering Contradiction:

Improveautomatic water spray operationVSAvoidoperator comfort

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The spray gun system performs automatic water spray operation through its internal mechanical linkage and valve system that maintains flow after initial triggering. The system serves itself by automatically sustaining the water flow state without requiring the operator to maintain pressing action, thereby improving operator comfort while maintaining productivity.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS20250345819A1Water outlet control structure of water spray gun

Publication Date: 2025.11.13 CIXI TIAN SHUO IND TRADE CO LTD

AI summary

The disclosure provides a water outlet control structure of a water spray gun, which falls within the technical field of horticultural irrigation tools. The water outlet control structure of the water spray gun includes a water spray gun head and a pressing handle, wherein the water spray gun head is configured to spray water flow; the pressing handle is configured to control a switch of the water flow; the water spray gun head is rotatably connected to the pressing handle; the pressing handle is movably connected to a clamping piece; the water spray gun head is provided with a moving groove at a side wall; the moving groove includes a first sliding groove, a second sliding groove, a third sliding groove, a fourth sliding groove, a first limiting block and a second limiting block; the clamping piece is slidably connected to the moving groove.