Shock absorber convenient to replace and install

The utility model discloses a damper convenient to replace and install, which comprises a hydraulic rod and a piston rod, and is characterized in that a damping cylinder is sleeved outside the hydraulic rod and the piston rod, the damping cylinder comprises a first cylinder body and a second cylinder body, the hydraulic rod and the piston rod are respectively sleeved at two ends of the first cylinder body, and the second cylinder body is sleeved at two ends of the second cylinder body. The second cylinder body wraps the first cylinder body; a partition plate is arranged in the first cylinder body, a first limiting plate is fixed to the outer portion of the hydraulic rod, and a second limiting plate is fixed to the outer portion of the piston rod. A connecting rod is further arranged in the first cylinder body and sequentially penetrates through the first limiting plate, the partition plate and the second limiting plate, and the two ends of the connecting rod are locked through locking rings respectively. Acco