A double-spring bidirectional adjustable hydraulic shock absorber

Abstract

This utility model provides a dual-spring, bidirectional adjustable hydraulic shock absorber, including a front hanger and a rear hanger. A piston rod is mounted on the front hanger, with a piston fitted at the end of the piston rod. A cylinder is mounted on the rear hanger, fitted outside the piston rod and piston. The piston rod drives the piston to slide along the inner wall of the cylinder. A sliding spacer is fitted outside the cylinder. A first spring connects the front hanger and the sliding spacer, and a second spring connects the rear hanger and the sliding spacer. Both the first and second springs are fitted outside the cylinder. The piston has several circumferentially distributed first throttling orifices that penetrate the piston. One-way valves are installed within each of the first throttling orifices, divided into two groups with opposite directions. This utility model, by setting two springs in series on the outside of the cylinder, improves the load-bearing capacity and impact resistance of the hydraulic shock absorber, enhances the damping effect, and ensures the service life of the hydraulic shock absorber and the vehicle. It belongs to the technical field of shock absorber technology.

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