Composite magneto-rheological fluid shock absorber

The invention discloses a composite magneto-rheological fluid shock absorber. The composite magneto-rheological fluid shock absorber comprises a shock absorber body and an outer valve. The shock absorber body is mainly composed of an outer cylinder barrel, a middle cylinder barrel, a work cylinder barrel, a guider assembly, a piston assembly, a piston rod, a bottom valve assembly and the like. Theouter valve is mainly composed of a lower supporting cover, a valve cover, a coil, a magnetism isolating barrel, a magnetism conduction barrel, an annular channel, a valve element, an adjusting nut,an upper supporting cover, an annular magnetism conduction block, a valve seat, a sealing ring, an outer installing base and the like. Due to the structure layout with a three-cylinder structure, one-way valves and the outer valve as a main part, magneto-rheological fluid flows in one direction through the outer valve, the annular channel and a radial channel in the outer valve are completely controlled by the magnetic fie