Swinging Spray Nozzle Mechanism for Variable-Area Disinfection
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Solution Overview
Problem
Conventional disinfection robots cannot adjust the swing amplitude of their spray nozzles to match varying disinfection site sizes, limiting their effectiveness and efficiency in disinfecting areas of different dimensions.
Innovation Solution
A disinfection robot with a swinging mechanism comprising a swinging arm, hinge shaft, swinging gear, and driving unit, allowing the swing amplitude to be adjusted by varying the number of teeth on the incomplete gear, enabling the spray nozzle to adapt to different site sizes, along with a stirring blade for thorough disinfectant mixing and a liquid spreading mechanism to distribute disinfectant evenly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed spray nozzle is used, then the structure is simple, but the spraying range cannot be adjusted to match different disinfection site sizes
Solution Approach 1:
The spray nozzle is transformed from a fixed position to a dynamic, swingable position through the swinging arm mechanism. The nozzle can now adjust its spraying range by swinging left and right, allowing adaptation to different disinfection site sizes while maintaining operational effectiveness.
Solution Approach 2:
The swinging mechanism is divided into independent modular components: swinging arm, hinge shaft, incomplete gear, and driving unit. This segmentation allows for easier manufacturing, assembly, and maintenance while achieving the complex function of adjustable spraying range.
2Adaptability or versatility
If a swingable spray nozzle is used to expand spraying range, then the adaptability improves, but the swing amplitude cannot be adjusted according to different site sizes
Solution Approach 1:
The swing amplitude is made dynamically adjustable through the incomplete gear mechanism. By changing the engagement position of the incomplete gear with the swinging gear, the swing amplitude can be adjusted to match different disinfection site sizes, enhancing adaptability without requiring complete redesign.
Solution Approach 2:
The swing amplitude parameter is made variable through the incomplete gear design. Different engagement positions of the incomplete gear teeth with the swinging gear teeth produce different swing amplitudes, allowing the system to adapt to various site dimensions by simply changing the gear engagement parameter.
3Productivity
If manual disinfection is used, then the equipment cost is low, but the labor intensity is high and disinfection efficiency is low
Solution Approach 1:
The disinfection robot achieves autonomous operation through integrated components: the driving unit automatically controls the swinging arm, the spray nozzle autonomously dispenses disinfectant, and the liquid pump self-regulates fluid flow. This eliminates the need for manual operation while maintaining high disinfection efficiency.
Solution Approach 2:
Multiple functions are merged into a single integrated system: the swinging mechanism combines movement and positioning, the spray nozzle integrates dispensing and distribution, and the liquid pump merges fluid transport and pressure control. This consolidation achieves high automation without proportionally increasing overall system complexity.
Data Source
AI summary
A disinfection robot, including a top plate, a bottom plate and a swinging mechanism. The top plate is located above the bottom plate. The swinging mechanism is located between the top plate and the bottom plate, and includes a swinging arm, a hinge shaft, a swinging gear, two swinging units and a driving unit. The swinging arm is hingedly connected to the bottom plate through the hinge shaft. The two swinging units are symmetrically arranged on both sides of the swinging gear. Each of the two swinging units includes a swinging shaft, an incomplete gear and a linear driver. The driving unit is configured to simultaneously drive swinging shafts of the two swinging units to rotate in opposite directions. The disinfection robot can adjust a swing amplitude of the swinging arm according to a size of a disinfection site.