US Patent 9914335 Shock absorber

A shock absorber is provided, including a base, a first axial tube, a second axial tube, a buffering structure and an abutting assembly. The base defines an axial direction, and the base has a through hole radially. An exterior circumferential wall of the first axial tube has a recess formed radially and near a first end of the base, and the first axial tube is screwed with the base. The abutting assembly includes an abutting member and an elastic abutting member, the abutting member is disposed within the through hole, the elastic abutting member is disposed on the base and at least partly located in the through hole so as to abut the abutting member to move toward the base normally.