Rotatable Cap Water Sprayer With Adjustable Flow Control
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Solution Overview
Problem
Miniature watering devices face issues with clogging due to foreign particles, difficulty in cleaning, and inability to accurately adjust water flow rates.
Innovation Solution
A water sprayer with a cylindrical body and rotatable cap featuring slotted grooves and co-ratcheted mechanisms allows for adjustable water flow rates and easy cleaning by threading the cap onto the body, enabling step-by-step adjustment and prevention of clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the water flow passageways are designed with multiple adjustment mechanisms, then the water flow rate can be accurately adjusted step by step, but the device structure becomes complex and difficult to clean
Solution Approach 1:
The adjustment mechanism is segmented into discrete co-ratcheted positions on the rotatable cap, allowing step-by-step adjustment of water flow rate. Each ratchet position corresponds to a specific flow rate level, providing precise control without requiring complex continuous adjustment mechanisms.
Solution Approach 2:
The adjustment mechanism is merged with the rotatable cap structure itself. The inner tubular wall of the cap serves as both the adjustment element and the flow control mechanism, eliminating the need for separate adjustment components and reducing overall device complexity.
2Measurement precision
If the water flow passageways are designed with multiple adjustment mechanisms, then the water flow rate can be accurately adjusted step by step, but the cleaning process becomes difficult
Solution Approach 1:
The device is segmented into two removable parts (body and rotatable cap), allowing the cap to be detached for separate cleaning. This segmentation enables access to internal passageways that would otherwise be difficult to reach, while maintaining precise adjustment capability through the co-ratcheted mechanism.
Solution Approach 2:
The rotatable cap containing the adjustment mechanism is extracted as a removable component. This allows the cap to be taken out for cleaning without disassembling the entire device, making maintenance easier while preserving the integrated adjustment functionality.
3Reliability
If the water flow passageways are made narrow to prevent clogging, then foreign particles are less likely to accumulate, but the water flow rate cannot be accurately adjusted
Solution Approach 1:
The inner tubular wall of the rotatable cap is made rotatable relative to the grooved water runners, dynamically changing the blocked area of the passageways. This dynamic adjustment allows precise control of water flow rate while the co-ratcheted mechanism prevents particle accumulation by maintaining smooth flow paths.
Solution Approach 2:
The water flow rate is controlled by changing the blocked area parameter through rotation of the cap. The co-ratcheted mechanism provides discrete adjustment positions, allowing precise parameter control while maintaining passageway geometry that resists clogging.
4Reliability
If the rotatable cap is tightly threaded onto the body to ensure sealing, then water leakage is prevented, but the cap becomes difficult to remove for cleaning
Solution Approach 1:
The threaded connection between the cap and body is designed to be dynamically adjustable. The cap can be tightly threaded for sealing during operation, but can also be easily unscrewed for cleaning by applying rotational force, providing both secure sealing and easy maintenance.
Data Source
AI summary
A water sprayer with a water spraying adjustment mechanism including a body and a rotatable cap is disclosed. The body includes an outer tubular wall with a threaded outer surface forming a central axial bore extrusion defining an inner chamber, an inner tubular wall within the inner chamber coaxially distributed with the outer tubular wall and constructed with a plurality of slotted grooves defining a plurality of grooved water runners, and an inlet portion being adapted to connect a source of pressurized water. The rotatable cap includes an inner tubular wall with an inner surface blocked around the grooved water runners, an outer tubular wall threaded on the outer tubular wall of the body for sealing the annular inner chamber, and a plurality of water outlets formed on the outer tubular wall of the rotatable cap and communicating with the grooved water runners for water spraying. When the rotatable cap is rotated, the blocking condition between its inner tubular wall and the grooved water runners is changed to achieve an adjustment of water spraying rate.