Modular Cleaning Trolley Structure for Flexible Assembly
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Solution Overview
Problem
Existing cleaning trolleys are not easily adaptable to customer needs, are difficult to handle, and have a bulky design.
Innovation Solution
A modular cleaning trolley design with independently mobile units, adjustable cross walls, and self-closing lateral doors with innovative hinges, allowing for customizable configurations and improved handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If cleaning trolleys are designed with fixed structure to ensure stability, then structural stability is improved, but adaptability to customer needs deteriorates
Solution Approach 1:
The cleaning trolley is divided into modular components including base units, wall elements, and accessory modules that can be independently selected and combined. Each cross wall consists of two separate wall elements that can be arranged and fixed independently, allowing customization of the trolley's internal configuration to meet different customer requirements while maintaining overall structural integrity.
2Ease of operation
If cleaning trolleys use traditional hinge designs for lateral doors, then door functionality is achieved, but the trolley becomes bulky and difficult to handle
Solution Approach 1:
The hinge system incorporates a spring element that provides automatic self-closing functionality, allowing the door to dynamically adjust its position. The spring mechanism enables the door to return to the closed position automatically after being opened, eliminating the need for additional counterweights or complex balancing mechanisms that would increase the trolley's bulk.
3Strength
If cleaning trolleys are designed as single integrated unit, then structural integrity is maintained, but ease of assembly and disassembly deteriorates
Solution Approach 1:
The trolley is constructed from separate modular units including base plates, upright hollow profiles, and cross wall elements that can be easily assembled and disassembled. The wall elements feature standardized connection interfaces with the upright profiles, allowing rapid assembly without compromising structural integrity. This modular construction enables easy maintenance, reconfiguration, and transport of individual components.
Data Source
AI summary
The present invention refers to a cleaning trolley comprising a base plate supported by rolling members; at least four upright hollow profiles for fixing cross walls arranged on the base plate, wherein each cross wall consists of two separate wall elements removably arranged back-to-back to each other and fixed by said upright hollow profiles; and an upper frame for securing the at least four upright hollow profiles. Further, the invention provides a cleaning trolley comprising a primary section and a secondary section, each section having a base plate supported by rolling members, wherein the primary section and the secondary section are removably connected by a connection mechanism, which connection mechanism contains a pedal pivotably attached to the bottom side of the base plate of the secondary section, and its actuation releases claws which in connection position are engaged with the primary section.