Foldable Marking Tube Assembly for Portable Spray Marking
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Solution Overview
Problem
Existing marking devices are either large and cumbersome or inconvenient to carry due to their size and lack of foldability, making them difficult to store and transport.
Innovation Solution
A foldable marking device with a rotatable connecting tube and handle system that allows for easy storage and transportation by folding the device, and easy operation by rotating the tube sections to form a connected tube for use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the marking device is made long to enable users to draw marks without bending over, then the usability is improved, but the convenience of carrying and storing is worsened
Solution Approach 1:
The connecting tube is divided into an upper tube section and a lower tube section that can be detached from each other. This segmentation allows the tube to be folded into a compact configuration for storage while maintaining its full extended length for drawing operations, thus resolving the contradiction between usability and portability.
Solution Approach 2:
The connecting tube is designed with a rotatable joint between the upper and lower tube sections, enabling it to dynamically change its configuration. The tube can rotate between a folded position for storage and an extended position for use, allowing the device to adapt its length based on operational needs.
2Length of moving object
If the marking device is made compact for storage and transport, then the ease of carrying is improved, but the usability for drawing marks without bending over is worsened
Solution Approach 1:
By segmenting the connecting tube into detachable sections, the device achieves compact storage length while maintaining the capability to extend to full length for drawing operations, thus resolving the contradiction between compactness and usability.
Solution Approach 2:
The rotatable joint enables the connecting tube to dynamically transition between compact folded configuration for storage and extended configuration for use, allowing the device to optimize its length based on whether it is being carried or operated.
3Device complexity
If the connecting tube is made fixed and non-foldable, then the structural simplicity is improved, but the ease of storage and transport is worsened
Solution Approach 1:
The connecting tube is segmented into detachable sections with a rotatable joint, adding minimal structural complexity while enabling the tube to fold into a compact configuration for storage. This segmentation approach maintains relative structural simplicity while dramatically improving storage convenience.
Solution Approach 2:
The rotatable joint introduces dynamic capability to the otherwise static tube structure, allowing it to transition between extended and folded states. This dynamic element is incorporated with minimal complexity, balancing structural simplicity with storage convenience.
Data Source
AI summary
The invention discloses a foldable marker, which includes a base, a connecting tube, a handle, and a connecting cord. The base has an installation position and an output component. The connecting tube consists of upper and lower sections. The lower section is connected to the base, while the upper section has an upper connector and the lower section has a lower connector. The upper connector is connected to the lower connector and can rotate between a folded position and a use position. The handle is connected to the connecting tube and has an operating component. The connecting cord connects the operating component and the output component. When the operating component is pressed by the user, it drives the connecting cord and the output component to move, thereby pressing the nozzle of the spray can.