SHOCK ABSORBER

摘要

A shock absorber includes a push rod, a first piston, a cylinder, a piston rod, a second piston, and a third piston. The cylinder and the first piston cooperatively define a first oil cavity. The second piston, the first piston, and the cylinder cooperatively define a second oil cavity. The third piston and the cylinder cooperatively define a gas cavity. The first piston is configured to urge the hydraulic oil of the second oil cavity to flow into the first oil cavity and the third oil cavity in event the push rod is pushed. The third piston is configured to compress the gas in the gas cavity in event the third piston is urged toward the gas cavity, thereby creating a damping effect.

主权项

1. A shock absorber comprising:
a push rod; a first piston connected to an end of the push rod; a cylinder configured to receive the push rod and the first piston; a piston rod received within and fastened to the cylinder; a second piston connected to an end of the piston rod, the end of the piston rod adjacent to the push rod; and a third piston slidably positioned around the piston rod; wherein the cylinder and the first piston cooperatively define a first oil cavity; wherein the second piston, the first piston, and the cylinder cooperatively define a second oil cavity; wherein the second piston, the third piston, and the cylinder cooperatively define a third oil cavity; wherein the third piston and the cylinder cooperatively define a gas cavity configured to house a gas; wherein the second oil cavity is communication with the first oil cavity and the third oil cavity; wherein the first oil cavity, the second oil cavity, and the third oil cavity are configured to contain hydraulic oil and are in fluidic communication with one another; wherein the first piston is configured to urge the hydraulic oil of the second oil cavity to flow into the first oil cavity and the third oil cavity in event the push rod is pushed; and wherein the third piston is configured to compress the gas in the gas cavity in event the third piston is urged toward the gas cavity, thereby creating a damping effect.