The invention provides a crash box and a vehicle having the crash box. The crash box comprises a cylinder block, a piston, an end cover, a piston rod and a valve body assembly. One end of the cylinder block is provided with an opening; the piston is arranged in the cylinder block; the cylinder block is divided into a first cavity and a second cavity by the piston; the end cover is arranged at the opened end of the cylinder block in a covering manner; a connection hole is formed in the end cover; the piston rod is arranged in the connection hole in a penetrating manner; the first end of the piston rod is connected with the piston; the valve body assembly is connected to the piston and used for communicating the first cavity with the second cavity when the piston moves up and down in the cylinder block. After being crashed by the outside, the crash box can be restored through simply pulling the piston rod, so the operation process is simpler, and the crash box can be reused, so that resources are greatly saved. In addition, hydraulic oil flows to absorb energy, and thus compared with a crash box of a square structure in the prior art, the crash box has better energy absorption effects.


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    Title :

    Crash box and vehicle having crash box


    Contributors:
    DAI XIAOBO (author) / ZHAO YUNQIANG (author)

    Publication date :

    2015-08-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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