Car double -acting telescopic type damper

The utility model discloses a car double -acting telescopic type damper, including director oil blanket sub -unit, store oil section of thick bamboo sub -unit, piston sub -unit and compression valve sub -unit, compression valve sub -unit is installed to one side port of inner tube on, and extend to get into to the first bottom in and with the inner wall looks apical grafting of first bottom, the opposite side port of inner tube is sealed to director oil blanket sub -unit, and the port mouth through the urceolus carries out spacing apical grafting along last spacing hem, piston sub -unit activity stopper connects to the inner tube in, the protection tube has been cup jointed outside the urceolus, the sealing -in has the second bottom in the port of one side of protection tube, be fixed with support piece on the inner wall of second bottom, this support piece is fixed mutually with above -mentioned first bottom, opposite side port female connection at the protection tube has the gland, this gland compresses tightly the urceolus, and be fixed with the closing cap along the face on at the mouth of this side mouth of protection tube. Its technical problem who has solved " avoiding bumper shock absorber main part and external environment condition contact ", the stability in use is good.