Adjustable Support Hydraulic Jack for Long-Stroke Vehicle Lifting
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Solution Overview
Problem
Conventional hydraulic jacks have a short stroke, limiting their application to vehicles with high ground clearance, making them inconvenient and unsafe, especially for off-road use on soft ground, as they require additional height adjustments and are prone to accidents.
Innovation Solution
A hydraulic jack with an adjustable supporting component, featuring a rotating supporting block and locking mechanism, allows for quick height adjustments and is suitable for various ground clearances, incorporating a long-stroke lifting mechanism and integrated valve plug design for enhanced safety and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional hydraulic jack with fixed height is used, then the structure is simple, but the adaptability to different ground clearances is poor
Solution Approach 1:
The supporting component is designed to be adjustable in height along the outer cylinder barrel, transforming from a fixed static structure to a dynamic adjustable one. This allows the jack to adapt to different ground clearances by moving the supporting component to different positions on the outer cylinder barrel, resolving the contradiction between adaptability and structural simplicity.
Solution Approach 2:
The jack is divided into multiple functional segments: the base, inner cylinder barrel, outer cylinder barrel, and independently adjustable supporting component. This segmentation allows each part to perform its specific function while the supporting component can be independently positioned to match different ground clearance requirements, enhancing adaptability without significantly complicating the overall structure.
2Adaptability or versatility
If the stroke of the hydraulic jack is short, then the structure is compact, but the scope of application is limited
Solution Approach 1:
Instead of increasing the stroke length in the vertical direction only, the invention adds a horizontal dimension of adjustment by allowing the supporting component to move along the outer cylinder barrel. This dimensional change enables the jack to handle vehicles with different ground clearances without requiring a proportionally longer stroke, maintaining structural compactness while expanding application scope.
3Reliability
If additional height adjustment methods like bricks and plates are used, then the ground clearance issue is temporarily solved, but safety deteriorates due to toppling and falling risks
Solution Approach 1:
The supporting component is designed with a locking mechanism that allows it to be dynamically adjusted to different heights and securely locked in place. This eliminates the need for unstable external supports like bricks and plates, as the supporting component itself provides stable, adjustable, and secure support, simultaneously improving safety and ease of operation.
4Adaptability or versatility
If the supporting component is made adjustable, then the scope of application widens, but the device complexity increases
Solution Approach 1:
The adjustment mechanism for the supporting component is integrated with the existing hydraulic cylinder structure. The supporting component slides along the outer cylinder barrel and is locked using the existing locking mechanism, merging the adjustment function with the lifting structure. This reduces the need for separate adjustment mechanisms and minimizes overall structural complexity while still providing adjustable functionality.
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
The hydraulic jack provides a wide range of application, improved safety, and reliability by enabling adjustments for different heights, supporting heavy loads, and preventing oil cavity damage, with a compact and strong structure that is easy to assemble and operate.
Implementation Method 1
the most basic principle on which hydraulic transmission is based is Pascal's law. That is, the intensity of pressure borne by liquid at all positions is the same. In this way, in a balanced system, the pressure applied on a smaller piston is smaller, and the pressure applied on a larger piston is larger
Implementation Method 2
a one-way valve assembly for one-way communication between the lower cavity 40a and the upper cavity 40b is formed in the valve plug main body 3
Data Source
AI summary
The present disclosure provides a hydraulic jack, including a base as a carrier for mounting other components; an inner cylinder barrel vertically fixed to the base, a sliding cavity being formed in the inner cylinder barrel; an outer cylinder barrel vertically and slidably fitted outside the inner cylinder barrel; a valve plug assembly slidably fitted in the sliding cavity, and the valve plug assembly being rigidly connected to the outer cylinder barrel via a valve plug rod and being able to slide synchronously with the outer cylinder barrel; a valve plug driving assembly mounted on the outer cylinder barrel; and a supporting component mounted on the side wall of the outer cylinder barrel in an up-down adjustable mode. The hydraulic jack of the present disclosure is compact in structure, high in strength, high in load capacity, long in stroke, and safe and reliable in use.