The invention relates to a collision protection device. The device comprises a protective cross beam, a force transmission swing arm, a damping device and a limiting mechanism; when the force transmission swing arm rotates relative to a protected object under the action of a large acting force, the force transmission swing arm drives the damping device to move to absorb energy; the limiting mechanism is mounted on the force transmission swing arm; the limiting device is used for limiting the rotation angle range of the force transmission swing arm and realizes partial limitation and complete limitation; a limiting threshold value is provided by the partial limitation; when a small acting force borne by the force transmission swing arm is smaller than the limiting threshold value, the rotation of the force transmission swing arm is limited; and if the small acting force is larger than or equal to the limiting threshold value, the force transmission swing arm is limited to rotate by a certain angle range. According to the complete limitation, when the force transmission swing arm bears a large acting force and/or a continuous small acting force, the rotation of the force transmissionswing arm is completely limited after the force transmission swing arm rotates to the maximum angle range. The device is good in universality, excellent in noise reduction capacity and small in required installation space, and has a multi-stage working mode.

    本发明涉及一种碰撞防护装置,包括防护横梁、传力摆臂、减震装置以及限位机构,传力摆臂在受较大作用力作用而相对所述被保护物体转动时,带动减震装置运动从而吸收能量,限位机构安装在传力摆臂上,用于限制传力摆臂转动的角度范围,并具有部分限制和完全限制,由部分限制提供一个限制阈值,当传力摆臂受到的较小作用力小于限制阈值,则限制所述传力摆臂转动,如果该较小作用力大于或等于限制阈值,则限制所述传力摆臂转动一定的角度范围,完全限制是指当所述传力摆臂在受到较大作用力和/或持续的较小作用力时,在传力摆臂转动到最大的角度范围后完全限制传力摆臂的转动。本发明通用性好,降噪能力优秀,所需安装空间小,并具有多级工作模式。


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    Title :

    Collision protection device


    Additional title:

    一种碰撞防护装置


    Contributors:
    PENG QIAN (author) / CHEN DU (author) / GUO FUSEN (author) / HAN FENGGANG (author)

    Publication date :

    2020-07-07


    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