Floating buffering hydraulic oil cylinder

The invention discloses a floating buffering hydraulic oil cylinder which comprises a tail end lug ring, a floating piston rod, a rear end cover, a rear cylinder body, a floating piston, a middle block, a one-way sequence valve, a front piston, a front cylinder body, a front end cover, a front piston rod and a front end lug ring. The hydraulic oil cylinder can rapidly and automatically buffer and retract after being axially impacted, and can automatically rebound to the original position after the axial impact is finished. By adjusting the one-way sequence valve, the output force required for balancing the axial impact force can be set, and the sensitivity of the floating buffering action can be adjusted. The hydraulic oil cylinder is convenient to install, easy to adjust and sensitive in response, additional mechanism assistance and complex logic control are not needed, and the use requirements for easy installation and maintenance, high collision sensitivity, high buffer retraction action response speed and