The invention discloses a double-adjustable-damping
shock absorber which comprises an inner cylinder
barrel and an outer cylinder
barrel. An inner cavity of the inner cylinder
barrel serves as a working cylinder, a reserved gap between the inner cylinder barrel and the outer cylinder barrel serves as an
oil storage cylinder, the upper end of the outer cylinder barrel is connected with the upper end of the inner cylinder barrel in a sealed mode through a guider, a
piston rod is inserted into the guider, a
recovery valve
system is arranged at the lower end of the
piston rod, and a
recovery adjusting mechanism used for adjusting the oil flow volume between an upper working cylinder and a lower working cylinder of the
recovery valve
system is further arranged corresponding to the recovery valve
system. The lower end of the outer cylinder barrel and the lower end of the inner cylinder barrel are connected in a sealed mode through a compression valve system, and a compression adjusting mechanism used for adjusting the oil flow volume between the working cylinder and the
oil storage cylinder is further arranged corresponding to the compression valve system. According to the double-adjustable-damping
shock absorber, the matching performance of the compression damping after the recovery damping is adjusted can be accurately adjusted according to user requirements, and therefore it is ensured that the vehicle suspension performance is in the optimal state.