Adjustable Screw Jack With Segmented Nuts and Rubber Grips
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Solution Overview
Problem
Conventional screw jack systems are difficult to adjust in length, limiting their versatility in applications such as lifting, supporting, and spacing objects.
Innovation Solution
A screw jack system comprising a first and second end plate, a bolt with a thread, and two nuts, where the second nut has an elongated barrel with a second thread, allowing for fine adjustments through the use of rubber grips secured via screws, enabling increased length and surface tension.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional screw jack systems are used, then the structure is simple and reliable, but the length adjustment is difficult and imprecise
Solution Approach 1:
The screw jack system is segmented into multiple adjustable components: a first end plate, a second end plate, a bolt with thread, two nuts (first and second), and rubber grips. The second nut's elongated barrel with second thread provides fine adjustment capability, while the rubber grips secured via screws allow for incremental length adjustments. This segmentation enables precise length control without requiring complete redesign of the entire system.
2Adaptability or versatility
If the screw jack system is made adjustable, then versatility increases, but adjustment difficulty remains high
Solution Approach 1:
The screw jack system incorporates dynamic adjustment mechanisms where the rubber grips can be positioned at different locations on the second end plate using screws. The elongated barrel of the second nut with its second thread allows for continuous fine adjustments. This dynamic configurability enables the system to adapt to various applications (lifting, supporting, spacing) while maintaining ease of operation through incremental adjustment steps.
3Measurement precision
If fine adjustment capability is added, then measurement precision improves, but device complexity increases
Solution Approach 1:
The rubber grips serve as intermediary elements between the adjustment mechanism and the load. They are secured to the second end plate via screws and can be positioned at different locations, providing fine adjustment capability without requiring complex adjustment mechanisms. The elongated barrel of the second nut with its second thread acts as an intermediary that translates rotational motion into precise linear adjustments, enabling fine length control while keeping the overall mechanism relatively simple.
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
Enables precise and versatile length adjustments, enhancing the system's ability to lift, support, and space objects effectively.
Implementation Method 1
The one or more rubber grips can be secured to the first end plate and/or the second end plate... allowing a user to increase the length of the screw jack system and/or increase the surface tension of the end plates
Data Source
AI summary
A screw jack system comprising of a first end plate, a second end plate, a bolt, a first nut, and a second nut. The first nut is coupled to the first end plate and allows for fine length adjustments. The second nut is coupled to the second end plate. The second nut includes an elongated barrel which receives the thread of the bolt. One or more rubber pads are secured to the first end plate and the second end plate to add length, surface tension, or a combination thereof.