Oil-Pressure Shock Absorber Structure With Accessible Damping Adjustment
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Solution Overview
Problem
Existing shock absorber designs require disassembly of the motor vehicle shell to adjust the extending-side adjusting button, making it inconvenient and unsafe for drivers due to the button being covered by the vehicle body.
Innovation Solution
The oil-pressure shock absorber features an extending-side adjusting button positioned at the lower end, with an adjusting structure including a sleeve seat, adjusting rod, and mandrel, allowing for adjustment without disassembling the vehicle by using a butt-joint and inclined surface mechanism to change damping sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the extending-side adjusting button is arranged at the upper end of the shock absorber, then the shock absorber structure is compact, but the adjusting button is covered by the motor vehicle body making it inaccessible for adjustment
Solution Approach 1:
The adjusting button is inverted from its conventional upper position to the lower end of the shock absorber body. This inversion allows the button to be positioned at the lower sleeve seat which is externally accessible, while the upper end remains compact and integrated with the vehicle body structure.
Solution Approach 2:
The adjusting mechanism transitions from a vertical arrangement where the button is at the top to a configuration where the button extends horizontally at the lower end through the lower sleeve seat. This dimensional change provides external accessibility without increasing the vertical profile.
2Ease of operation
If the adjusting button is positioned at the lower end, then the button is accessible without disassembly, but the internal connection mechanism becomes more complex
Solution Approach 1:
The adjusting rod is nested within the lower sleeve seat, and the button is nested within the adjusting rod structure. This nested arrangement allows multiple functional elements to be compactly integrated while maintaining external accessibility of the button through the lower sleeve seat.
Solution Approach 2:
The lower sleeve seat acts as an intermediary structure that provides a passage for the adjusting rod and button while maintaining the structural integrity of the shock absorber body. This intermediary element enables external access to the adjustment mechanism without compromising the upper structure.
3Reliability
If the adjusting mechanism uses a butt-joint structure with inclined surface, then the damping adjustment is smooth and reliable, but the manufacturing precision requirements increase
Solution Approach 1:
The butt-joint structure incorporates an inclined surface that allows dynamic adjustment of the damping characteristic. As the adjusting rod moves vertically within the lower sleeve seat, the inclined surface of the butt-joint converts vertical motion into rotational motion of the mandrel, providing smooth and continuous damping adjustment.
Solution Approach 2:
The inclined surface angle of the butt-joint structure determines the mechanical advantage and adjustment sensitivity. By optimizing this geometric parameter, the system achieves reliable damping adjustment with reduced sensitivity to manufacturing tolerances, as the inclined surface provides a gradual transition rather than a sharp engagement.
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 convenient and safe adjustment of the shock absorber without disassembling the motor vehicle, improving driver comfort and safety by keeping the adjusting button accessible.
Implementation Method 1
A pushing part with an inclined surface is arranged in the middle of the adjusting rod... An oblique angle is arranged at the periphery of the end surface of the mandrel... The oblique angle of the mandrel abuts against the inclined surface of the pushing part
Data Source
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AI summary
The present invention relates to an improved structure of an oil-pressure shock absorber, mainly including a shock absorber body, a lower sleeve seat, an adjusting structure, and a mandrel. The lower sleeve seat is arranged below the shock absorber body. The mandrel is arranged at the axis of the shock absorber body. The upper end of the mandrel and the damping adjusting structure the shock absorber body adjust a structure. The lower end of the mandrel extends into the lower sleeve seat. The adjusting structure is arranged in a positioning hole. The two sides of the lower sleeve seat are opened and provided with the positioning hole. The lower sleeve seat at least includes an adjusting button and an adjusting rod which pass through, are arranged in the positioning holes and are in butt joint with each other. The adjusting rod is provided with a pushing part with an inclined surface. The inclined surface abuts against an oblique angle provided in the periphery of the bottom end of the mandrel. A knob or a multi-angle inner hole provided in the adjusting button drives the adjusting button to push against the adjusting rod, so that the inclined surface of the pushing part and the oblique angle of the mandrel act to drive the mandrel to move up and down. Therefore, the damping adjusting structure is linked to the mandrel to change a damping size.