Rotatable Drawing Device for Tight Space Metal Repair
Solution Overview
Problem
Conventional drawing devices for repairing dented metal plates are difficult to operate, especially in narrow spaces, due to fixed positions of the pressing rod and supporting assembly, which restricts the user's ability to apply force effectively.
Innovation Solution
A drawing device with a rotatable main body and seat body connected by a central axle, featuring swingable supporting members and a driving structure that allows the central axle to be moved upward, enabling the user to adjust the device's position and angle for convenient operation in tight spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the pressing rod and supporting assembly are arranged on fixed positions of the main body, then the structure is simple and stable, but it is hard to operate the pressing rod and supporting assembly, especially in narrow spaces
Solution Approach 1:
The pressing rod and supporting assembly are made movable relative to the main body through a sliding mechanism. The pressing rod can slide along the main body axis, and the supporting assembly can rotate around the main body, transforming fixed static components into dynamic adjustable components that adapt to different operational requirements
Solution Approach 2:
The main body is divided into multiple functional sections with independent degrees of freedom. The pressing rod is separated as an independent sliding component, and the supporting assembly is separated as an independent rotating component, allowing each part to be adjusted independently to improve operability
2Stability of the object's composition
If the supporting assembly is positioned to stably prop on the metal plate, then stability is improved, but the direction or position of the pressing rod may make it hard for a user to press or apply force
Solution Approach 1:
The supporting assembly is designed with rotational capability around the main body, allowing it to independently adjust its positioning angle to achieve stable proping on the metal plate surface, while the pressing rod maintains its sliding capability to reach accessible positions for user operation
Solution Approach 2:
The supporting assembly and pressing rod are separated as independent adjustable components with different degrees of freedom. The supporting assembly handles the stability function through rotational adjustment, while the pressing rod handles the operation function through sliding adjustment, allowing both requirements to be satisfied simultaneously
3Ease of operation
If the position of the pressing rod allows the user to apply force, then ease of operation is improved, but there may be no place for the supporting assembly to prop on
Solution Approach 1:
Both the pressing rod and supporting assembly are designed with independent adjustment capabilities. The pressing rod can slide to various positions along the main body, and the supporting assembly can rotate to various angles around the main body, allowing both components to reach their optimal positions without interfering with each other
Solution Approach 2:
The device structure is segmented to provide independent adjustment mechanisms for each component. The pressing rod has sliding freedom along the main body axis, and the supporting assembly has rotational freedom around the main body, creating spatial separation of their adjustment domains to avoid positional conflicts
Data Source
AI summary
A drawing device includes a main body, a seat body, a central axle, two supporting members and a driving structure. The seat body is rotatably connected to the main body and has two legs which have a preset distance therebetween, the central axle vertically penetrates the main body and the seat body and movable along a vertical direction, the main body and the seat body are rotatable about the central axle relative to each other, a bottom portion of the central axle penetrates the seat body for a sucking disc to be arranged thereon, the two supporting members are respectively swingably pivoted to the two legs of the seat body, and the central axle is located between the two supporting members, and the driving structure is attached to the main body and connected to the central axle to optionally move the central axle upward.