Floor Sweeper-Scrubber Hopper Lift With Rear Dumping Access
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Solution Overview
Problem
Existing combination floor sweeping and scrubbing machines face limitations in operation simplicity, waste removal efficiency, maintenance access, and durability, particularly requiring manual hopper dumping and offering limited sweeping capabilities.
Innovation Solution
A floor sweeping and scrubbing machine with a motorized cleaning head, integrated waste hopper, vacuum squeegee, and waste recovery tank, featuring a hopper lift for automated waste disposal and improved component accessibility, including a vacuumized dust control system and adjustable skirting for enhanced operational efficiency and reduced wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual hopper dumping is used in combination floor sweeping and scrubbing machines, then device complexity is reduced, but productivity decreases due to time-consuming manual waste removal
Solution Approach 1:
The hopper lift system enables the machine to automatically dump its own waste without requiring manual intervention. The operator simply activates the hopper lift mechanism, which raises and tilts the hopper to discharge waste into the rearwardly positioned container, allowing the machine to service itself during operation.
Solution Approach 2:
The hopper is positioned to extend rearwardly beyond the rearwardmost portion of the machine body, utilizing the rearward spatial dimension for waste discharge. This rearward extension allows waste to be dumped into a container positioned behind the machine without requiring side or top discharge mechanisms.
2Ease of operation
If the waste hopper is positioned to extend rearwardly beyond the rearwardmost portion of the machine, then ease of operation is improved through automated dumping, but device complexity increases due to the extended hopper structure
Solution Approach 1:
The hopper serves multiple functions: it collects waste during sweeping operations, stores it for later discharge, and acts as a dumping mechanism when positioned in the raised and tilted configuration. The rearward extension of the hopper allows it to function both as a collection container and as a waste discharge apparatus.
3Productivity
If a large waste hopper is used to support pure sweeping operations, then productivity is improved, but the machine size and weight increase
Solution Approach 1:
The waste discharge function is extracted from the main machine body and positioned in a separate container located rearwardly of the machine. This separation allows the hopper to be optimized for waste collection during sweeping operations while the external container handles waste storage and discharge, reducing the need for an excessively large integrated hopper.
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 simplifies operations, enhances waste removal efficiency, improves maintenance access, and provides robust durability by automating waste disposal and incorporating advanced dust control and adjustable components, thereby overcoming the limitations of prior machines.
Implementation Method 1
A vacuum squeegee removes liquid waste from the floor during the wet scrubbing and sweeping operations
Data Source
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Figure 5
AI summary
A hard floor sweeping and scrubbing machine (100) includes a mobile body comprising a frame (116) supported on wheels (118) for travel over a surface (120), a motorized cleaning head (104), a waste hopper (106), a hopper lift (108) and a vacuum squeegee (152). The motorized cleaning head is attached to the mobile body and is configured to perform sweeping and scrubbing operations on the surface. The waste hopper is positioned on a rear side (136) of the cleaning head and is configured to receive waste (128) discharged from the cleaning head during the surface sweeping operations. The hopper lift is configured to raise the waste hopper from an operating position (180), in which the waste hopper is positioned adjacent the cleaning head, to a dumping position (182), in which the waste hopper is positioned to dump waste collected in the waste hopper. In one embodiment, the vacuum squeegee is attached to the hopper lift. Also disclosed is a method of cleaning a surface using embodiments of the machine.