High-Pressure Floor Cleaner With Motion-Locked Spray Control
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Solution Overview
Problem
Existing high-pressure cleaning technologies are inadequate for properly cleaning outdoor synthetic floors, as they often damage the surfaces due to high-pressure water jets, leading to unsatisfactory cleaning results and reduced service life of fall protection floors.
Innovation Solution
A mobile high-pressure cleaning machine with a spray lock mechanism that ensures water is only delivered at high pressure when the machine is moving at a specified working speed, preventing damage and allowing for effective cleaning without light stripes or enlarged damaged areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-pressure water jets are used to clean outdoor synthetic floors, then cleaning effectiveness is improved, but the floor surface is damaged leading to light stripes and enlarged damaged areas
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the water pressure based on the machine's movement state. The control unit monitors the drive wheel rotation speed and accordingly regulates the high-pressure pump output, ensuring optimal cleaning pressure is applied only when the machine is moving at the specified working speed, thereby preventing surface damage from excessive pressure during stationary or slow movement
Solution Approach 2:
The patent implements feedback control through a control unit that continuously monitors the rotational speed of the drive wheels and uses this information to regulate the high-pressure pump operation. This closed-loop feedback system ensures that high-pressure water delivery is synchronized with machine movement, automatically preventing damage when the machine slows down or stops while maintaining effective cleaning when moving at proper speed
2Power
If the HP pump delivers water at high pressure when the machine is stationary or moving slowly, then cleaning power is increased, but light stripes and damaged areas are created on the floor
Solution Approach 1:
The patent applies dynamics by making the water pressure delivery dynamic rather than static. The high-pressure pump's operation is continuously adjusted based on the real-time movement state of the machine. When the machine moves at the specified working speed, full cleaning power is delivered; when the machine slows down or stops, the pressure is automatically reduced or stopped, preventing surface quality degradation from excessive pressure application
3Productivity
If the spray device operates continuously at high pressure, then cleaning efficiency is improved, but damage to the floor surface increases
Solution Approach 1:
The patent implements periodic action by synchronizing the high-pressure water delivery with the periodic movement of the machine. The spray device operates at high pressure only during periods when the machine is moving at the specified working speed, and is deactivated or reduced during periods when the machine is stationary or moving slowly. This periodic operation pattern maintains cleaning efficiency while preventing cumulative damage that would occur with continuous operation
Solution Approach 2:
The control unit uses feedback from the drive wheel speed sensors to periodically activate or deactivate the high-pressure pump based on whether the machine is moving at the required speed. This feedback-controlled periodic operation ensures that high-pressure cleaning is applied only during productive movement phases, extending floor service life by avoiding unnecessary high-pressure exposure during stationary periods
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
The machine effectively removes at least 60% of embedded dirt particles, restoring the original fall protection properties of outdoor synthetic floors, thereby extending their service life and ensuring a visually flawless cleaning surface.
Implementation Method 1
a spray device for spraying water under high pressure conditions against the floor surface to be cleaned
Implementation Method 2
a collection device for collecting and removing from the housing sprayed water and a slurry of water, dirt particles and other solid particles by means of suction air
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The driven high-pressure cleaning machine (1) comprises a chassis (10) which is fitted with multiple wheels, where the high-pressure cleaning machine is fitted with an injection barrier, such that a coupling is formed between a power wheel drive (24) and a high-pressure pump drive (61). A high pressure pump (60) conveys water to a spray device under high-pressure conditions, when the high-pressure cleaning machine runs on a floor area (2) which is cleaned.