Rotor Sprinkler Arc Setting Mechanism for Part- and Full-Circle Modes
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Solution Overview
Problem
Conventional rotor sprinklers require multiple products for part circle and full circle modes, leading to inventory and installation challenges, and their arc setting mechanisms are prone to mishandling, which can weaken components and disrupt irrigation patterns.
Innovation Solution
A multi-mode rotor sprinkler with an improved arc setting mechanism that allows switching between part circle and true full circle modes, featuring a robust design with a memory arc function to automatically return to the original angle of rotation and reduce stress on components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional rotor sprinklers use separate products for part circle and full circle modes, then each mode can be optimized independently, but inventory complexity and installation errors increase
Solution Approach 1:
The sprinkler head is designed with a universal mechanism that can perform both part circle and full circle modes through a single product. The arc setting mechanism includes a reversible rotor assembly with adjustable stops that enable the same hardware to function in multiple modes, eliminating the need for separate part circle and full circle sprinkler products.
Solution Approach 2:
The arc setting mechanism incorporates dynamic adjustability where the rotor can be configured for different arc settings. The reversible rotor assembly allows the sprinkler to dynamically switch between part circle and full circle modes by adjusting the position of the stops and the direction of rotation, providing adaptability without requiring multiple static product designs.
2Adaptability or versatility
If arc setting mechanism components engage during use to enable mode switching, then multi-mode operation is achieved, but component stress increases and product life decreases
Solution Approach 1:
The arc setting mechanism incorporates cushioning elements and stress-distributing features that protect components during mode switching. The reversible rotor assembly includes designed stress relief pathways and protective positioning that prevent excessive forces from concentrating on single components during the engagement and disengagement cycles between modes.
Solution Approach 2:
The mechanism utilizes flexible components such as spring-loaded elements and resilient positioning features that allow controlled engagement without transmitting full impact forces. These flexible elements absorb shock and reduce stress on rigid components during mode transitions, extending product life while maintaining switching capability.
3Ease of operation
If the arc setting mechanism allows manual adjustment, then user customization is possible, but unauthorized or inadvertent adjustment disrupts irrigation patterns
Solution Approach 1:
The arc setting mechanism incorporates protective features that prevent unauthorized or inadvertent adjustment while allowing intentional user customization. Locked positioning systems, protective covers, or requirement of specific adjustment procedures create preliminary barriers that stop vandalism and accidental changes, while still permitting authorized users to make deliberate arc setting adjustments when needed.
Solution Approach 2:
The mechanism includes visual or tactile feedback indicators that show the current arc setting and confirm when adjustments have been made. This feedback system helps users verify the intended configuration and can alert them when unauthorized changes occur, allowing for prompt correction while maintaining the ability to make legitimate adjustments.
Data Source
AI summary
A multi-mode sprinkler adjustable for part or full circle operation to irrigate a selected area is provided. The sprinkler includes a nozzle for dispensing fluid, a set of gears for rotating the nozzle, and an arc setting mechanism that cooperates with the set of gears. The arc setting mechanism comprises a fixed trip for switching to a first direction for the nozzle and an adjustable trip movable relative to the fixed trip for setting an arc of rotation for the nozzle in the part circle mode. The arc setting mechanism also includes a toggle for engaging the fixed trip and the adjustable trip to switch between a first direction and a second direction when in the part circle mode. In the full circle mode, the adjustable trip is deflected radially outward, and the fixed trip deflects radially outward as it passes the toggle, allowing continuous rotation of the nozzle. A memory arc function is also provided, in which the arc setting mechanism returns to an originally set arc of rotation after mishandling of the sprinkler.