Sprinkler Adjustable Fan Angle Helical Surface Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sprinklers suffer from uneven water spray distribution within adjustable spray angles due to mismatched helical surfaces, leading to incomplete closure and potential water leakage, and difficulties in rotation due to close fitting components.
Innovation Solution
A sprinkler design featuring a base with a receiving seat, collar member, adjustment member, and cap, where the collar member has conical helical surfaces and a groove, and the adjustment member includes conical helical surfaces and a leaning part to adjust the outflow gap, allowing for even water distribution and adjustable fan angles from 5 to 360 degrees.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the inner diameter of the lower cap and the diameter of the outlet of the water channel are made the same, then the structure is simple, but the outflow pressure is not distributed evenly and water spray distribution is uneven
Solution Approach 1:
The lower cap is divided into multiple segments with different inner diameters along its length. The water channel outlet has a first diameter, while the lower cap has a first section with a first inner diameter and a second section with a second inner diameter. This segmentation allows the outflow pressure to be distributed evenly across different sections, achieving uniform water spray distribution while maintaining structural simplicity.
2Reliability
If the helical surfaces of the upper cap and lower cap are made to fit closely, then closure is improved, but rotation becomes difficult and adjustment is hindered
Solution Approach 1:
The helical surfaces of the upper cap and lower cap are designed with a specific geometric relationship where they engage to provide closure, but the engagement allows for controlled rotation. The helical geometry enables the caps to rotate relative to each other while maintaining sealing, facilitating easy adjustment of the spray angle without compromising closure completeness.
3Device complexity
If the width of the circular outflow gap is made uniform, then the structure is simple, but the fan-shaped water spray becomes uneven with powerful or weak sections
Solution Approach 1:
The lower cap is designed with varying inner diameters in different sections to create a non-uniform outflow gap width. The first section has a first inner diameter creating a first outflow gap width, while the second section has a second inner diameter creating a second outflow gap width. This local variation in gap width ensures that the fan-shaped water spray is distributed evenly across all sections, eliminating powerful or weak spray sections while maintaining reasonable structural complexity.
Data Source
AI summary
A sprinkler with adjustable fan angle of water sprayed is revealed. The adjustable fan angle of water sprayed means a fan area of the water sprayed is adjusted and changed. The sprinkler includes a housing, a receiving seat and a sprinkler head. The sprinkler head consists of a base seat, a collar member and an adjustment member. The fan angle of the water sprayed can be manually operated and changed by rotating the adjustment member.