The invention provides a vehicle collision energy absorption device which comprises a front longitudinal beam, a floor lower longitudinal beam, a cross beam and a threshold. The rear end of the floor lower longitudinal beam is rotationally connected with the cross beam. Two ends of the cross beam are respectively connected with the rear end of the doorsill and the rear end of the front longitudinal beam; one side of the front end of the floor lower longitudinal beam is connected with the front longitudinal beam through a first hydraulic telescopic part, the other side of the floor lower longitudinal beam is connected with the doorsill through a second hydraulic telescopic part, and the first hydraulic telescopic part and the second hydraulic telescopic part are oppositely arranged; a trigger part is arranged at the front end of the front longitudinal beam, and a first hydraulic system is arranged on the front longitudinal beam; a movable section is slidably arranged in the front end of the threshold, and a second hydraulic system is arranged on the threshold; when the triggering part is collided, the first hydraulic system is triggered to push the first hydraulic telescopic part to extend, so that the front end of the floor lower longitudinal beam moves towards the direction close to the threshold, the second hydraulic telescopic part is compressed, and the second hydraulic system is promoted to push the movable section to extend out of the front port of the threshold. According to the invention, the safety of the vehicle can be well improved.

    本发明提供了一种车辆碰撞吸能装置,其包括前纵梁、地板下纵梁、横梁、门槛,地板下纵梁的后端与横梁转动连接;横梁的两端分别与门槛的后端和前纵梁的后端相连;地板下纵梁的前端的一侧通过第一液压伸缩件与前纵梁相连,其另一侧通过第二液压伸缩件与门槛相连,第一液压伸缩件与第二液压伸缩件相对设置;前纵梁的前端设置有触发部,前纵梁上设置有第一液压系统;门槛的前端内滑动设置有活动段,门槛上设有第二液压系统;当触发部被碰撞时,将触发第一液压系统推动第一液压伸缩件伸长,使地板下纵梁的前端向靠近门槛的方向移动,以将第二液压伸缩件压缩,促使第二液压系统推动活动段从门槛的前端口中伸出。本发明能够较好地提高车辆的安全性。


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    Title :

    Vehicle collision energy absorption device


    Additional title:

    一种车辆碰撞吸能装置


    Contributors:
    LIU XIU (author) / XU HAIDONG (author) / PAN PAN (author)

    Publication date :

    2022-04-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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