Variable Trajectory Nozzle for Uniform Cleaning
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Solution Overview
Problem
Conventional cleaning apparatuses with fixed nozzle movement trajectories and bevel gear combinations result in nonuniform cleaning, increased cleaning time, and excessive fluid consumption, especially when cleaning objects with varying shapes or hard-to-reach areas.
Innovation Solution
A cleaning apparatus with a control device that independently operates and controls the rotational frequencies of drive sources for a rotary shaft and an outer tube, allowing the nozzle to move in variable trajectories, including stopping or altering its rotation to target specific areas effectively, reducing fluid and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed bevel gear combination is used to determine nozzle movement trajectory, then the structure is simple, but the cleaning coverage is insufficient and nonuniform cleaning occurs
Solution Approach 1:
The patent applies dynamics by making the nozzle movement trajectory variable rather than fixed. The control device independently controls the rotational frequencies of both the rotary shaft and pivot rotary shaft, allowing the nozzle to dynamically adjust its movement path according to the cleaning object's shape and size, thereby achieving uniform cleaning coverage without requiring complex fixed gear combinations for each scenario
Solution Approach 2:
The patent changes the parameters of rotational frequency for both the rotary shaft and pivot rotary shaft. By independently adjusting these rotational frequencies through the control device, the system can modify the nozzle's movement trajectory to match different cleaning requirements, resolving the contradiction between structural simplicity and cleaning uniformity
2Device complexity
If the nozzle moves along a constant trajectory determined by bevel gear teeth, then the mechanical structure is simple, but the cleaning time increases due to repeated cleanings
Solution Approach 1:
The system dynamically adjusts the nozzle's movement trajectory by independently controlling the rotational frequencies of the rotary shaft and pivot rotary shaft. This allows the nozzle to adapt its path to the cleaning object's geometry, ensuring complete coverage in a single pass and eliminating the need for repeated cleanings, thus reducing cleaning time while maintaining mechanical simplicity
Solution Approach 2:
The control device provides feedback control by monitoring the cleaning process and adjusting the rotational frequencies of the drive sources accordingly. This enables real-time optimization of the nozzle's movement trajectory to ensure complete and uniform cleaning coverage, preventing the need for repeated cleaning operations
3Device complexity
If a fixed nozzle trajectory is used, then the mechanical structure is simple, but the cleaning fluid consumption increases due to overspraying and missed areas
Solution Approach 1:
The nozzle's movement trajectory is dynamically adjusted by independently controlling the rotational frequencies of the rotary shaft and pivot rotary shaft. This ensures the cleaning fluid is precisely directed at the cleaning object's surface, eliminating overspraying into empty spaces and ensuring complete coverage of difficult-to-reach areas, thereby optimizing cleaning fluid consumption
Solution Approach 2:
The system changes the rotational frequency parameters of both drive sources to optimize the nozzle's movement trajectory. By adjusting these parameters in real-time based on the cleaning object's characteristics, the system maximizes cleaning fluid utilization efficiency, preventing both waste from overspraying and insufficient coverage requiring additional fluid
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enables efficient, reduced-time cleaning with improved coverage and reduced fluid usage, effectively addressing nonuniformity and defective cleaning issues across various object shapes.
Implementation Method 1
a pair of bevel gears... in which the rotary shaft and the pivot rotary shaft are operated together by a pair of bevel gears
Data Source
AI summary
A cleaning apparatus 1 includes: a pivot rotary shaft 8 attached with a nozzle 3; a first motor 14 for revolving and rotating the pivot rotary shaft 8 via an inner tube 7 and bevel gears 11 and 12; a second motor 16 for solely rotating an outer tube 15; and a control device 18 for controlling the operation of both the motors 14 and 16. The outer tube 15, and the pivot rotary shaft 8 and the nozzle 3 are operated together via the bevel gears 11 and 12. The first motor 14 is operated with the cleaning fluid W being sprayed from the nozzle 3.