The invention discloses a device for automobile collision prevention, and belongs to the technical field of automobile collision prevention. Comprising an anti-collision beam and longitudinal beams on the two sides of an automobile, STF dampers are symmetrically connected between the anti-collision beam and the longitudinal beams on the two sides, and the other ends of the STF dampers are connected with the longitudinal beams; the STF damper comprises a cylinder body, a single-rod piston, a left end cover, a right end cover, an annular one-way valve, a steel plate, an energy absorption box and shear thickening fluid, the left end cover and the right end cover are arranged at the two ends of the cylinder body respectively, one end of the energy absorption box is connected with the right end cover, the steel plate is fixed to the other end of the energy absorption box, an annular groove is formed in the position, close to the steel plate, of the inner wall of the cylinder body, and the steel plate is sleeved with the annular one-way valve. The energy absorption box is arranged in the cylinder body annular groove and moves along the annular groove and the outer edge of the steel plate, the cylinder body is divided into a left cavity and a right cavity through the annular one-way valve and the steel plate, the piston is arranged in the left cavity, the piston rod extends out of the left end cover to be connected with the anti-collision beam, and the left cavity, the right cavity and the energy absorption box are filled with shear thickening liquid. The buffering and energy absorbing device can play a buffering and energy absorbing role under the action of external force.

    本发明一种用于汽车防撞的装置,属于汽车防撞技术领域。包括防撞梁及汽车两侧的纵梁,在所述防撞梁及两侧纵梁间对称连接有STF阻尼器,STF阻尼器的另一端连接纵梁;所述STF阻尼器包括缸体、单出杆活塞、左端盖、右端盖、环形单向阀、钢板、吸能盒及剪切增稠液,缸体两端分别设置左、右端盖,吸能盒一端连接右端盖,另一端固定钢板,所述缸体内壁上靠近钢板处开有环形槽,环形单向阀套置在钢板上,并置于缸体环形槽内,沿环形槽及钢板外沿运动,缸体通过环形单向阀及钢板分隔成左、右腔体,活塞置于左腔体,活塞杆伸出左端盖连接防撞梁,在左、右腔体及吸能盒内填充有剪切增稠液。本发明可以在外力作用下起到缓冲吸能作用。


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    Title :

    Anti-collision device for automobile


    Additional title:

    一种用于汽车防撞的装置


    Contributors:
    WEI MINGHAI (author) / YAN YANGYI (author) / YOU AOPING (author)

    Publication date :

    2023-11-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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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