Portable X-Ray Grid Cabinet With Adjustable Height and Rotation
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Solution Overview
Problem
Existing x-ray grids are difficult to transport and manipulate due to their weight and fragility, and existing solutions do not provide a portable and adjustable means to position them conveniently for radiographic imaging.
Innovation Solution
A portable x-ray grid cabinet with a vertical structure attached to a flat base with wheels, allowing easy transport and adjustable positioning of the grid holder from horizontal to vertical, with a rotating bearing mechanism that restricts rotation to 180 degrees and optional counterweight for easier vertical motion, accommodating various grid sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If x-ray grids are made heavy and large to accommodate different sizes and provide structural stability, then they can hold various grid sizes and maintain rigidity, but they become difficult to transport and manipulate
Solution Approach 1:
The grid cabinet is divided into separate components: a base unit with wheels for transport, a vertical support structure, and a grid holder that can be independently positioned. This segmentation allows the system to be transported in parts and assembled as needed, reducing the difficulty of handling while maintaining the ability to accommodate different grid sizes.
Solution Approach 2:
The grid holder is designed with dynamic positioning capabilities, allowing it to be raised, lowered, and rotated between horizontal and vertical orientations. The height-adjustable mechanism and rotating bearing enable the grid to be positioned at various angles and heights, providing adaptability for different imaging requirements while keeping the grid holder itself lightweight and mobile.
2Reliability
If a fixed grid cabinet structure is used to provide stable grid positioning, then grid position stability is improved, but portability and adjustability are reduced
Solution Approach 1:
The grid cabinet employs dynamic adjustment mechanisms including a height-adjustable grid holder that can be raised and lowered along the vertical support, and a rotating bearing that enables transition between horizontal and vertical orientations. These dynamic features provide both stability during use and adaptability for different positioning requirements, resolving the contradiction between fixed stability and flexible adjustability.
Solution Approach 2:
The grid holder includes self-locking mechanisms that maintain stable positioning once adjusted. The design allows the grid to be securely held in any positioned orientation without requiring constant external support, providing both stability and adaptability through user-adjustable, self-maintaining positioning features.
3Adaptability or versatility
If grid holder is designed to rotate freely through 360 degrees, then flexibility in positioning is improved, but the risk of grid falling or improper orientation increases
Solution Approach 1:
The rotating bearing is designed with asymmetric features that provide stable support in horizontal and vertical orientations while preventing unstable intermediate positions. The bearing structure includes asymmetric support surfaces and positioning features that naturally guide the grid holder into stable orientations, reducing the risk of improper positioning while maintaining rotational flexibility between the two stable states.
Solution Approach 2:
The rotating bearing incorporates preliminary anti-action features such as positioning stops, asymmetric support surfaces, and orientation-guiding elements that prevent the grid holder from settling into unstable or improper orientations. These features proactively counteract potential positioning errors before they occur, ensuring the grid remains securely positioned in either horizontal or vertical orientation without risk of falling.
Data Source
AI summary
A radiographic grid cabinet for holding x-ray grids and/or cassettes that can have a vertical structure attached to a flat base with wheels that engage when the device is tilted backward like a handcart so that the cabinet can be easily transported from place to place. Wheels can fold out when needed. The device also can have a support plate that can move vertically on a set of rails or other structure attached to the cart. A thumb controlled pin on a clamp or other locking device can select one of a number of holes in the rails to lock the cabinet into a fixed vertical position. The device can also have a rotating bearing that allows the grid holder to be rotated from a horizontal to a vertical position, or through a vertical position from either of two horizontal positions.