Buffer structure of isolator

The utility model provides a buffer structure of a one-way clutch, and belongs to the technical field of one-way clutches. The one-way clutch solves the problem that an existing one-way clutch is short in buffer stroke. The buffer structure of the one-way clutch comprises a spline shaft and a gear which is arranged on the spline shaft in a sleeving mode and can move in the axial direction of the spline shaft, the buffer structure comprises a spring arranged on the spline shaft in a sleeving mode, an annular limiting boss is arranged on the peripheral face of the spline shaft and located on therear side of the gear, and the spring is a tower spring. The tower spring is located between the limiting boss and the gear, the large end of the tower spring abuts against the limiting boss, and thesmall end of the tower spring abuts against the gear. The structure solves the problems that the buffer stroke of the one-way clutch is influenced after the spring is compressed and the spring is easy to fatigue to cause spri