The invention belongs to the technical field of automobile safety, and particularly relates to an automobile safety belt tightening device which comprises a safety belt inserting opening, a metal connecting rod, a nut, a bolt, an air cylinder body, an air cylinder end cover, a piston, an ignition device and explosives. The upper end face of the piston and the inner cavity face of the air cylinder body form a combustion cavity, and explosive and an ignition device are arranged in the combustion cavity. The outer conical surface of the piston, the inner conical surface of the air cylinder end cover and the inner wall of the air cylinder body jointly form a working cavity. When an automobile encounters serious collision or rollover, the safety belt is further tensioned by instantly pulling the safety belt insertion opening downwards, a driver or a passenger is attached to the safety seat backrest so as to improve safety, and meanwhile the device is simple in structure, convenient to install, low in cost, reliable in execution and convenient for quantitative production and universal application.

    本发明属于汽车安全技术领域,具体涉及一种汽车安全带束紧装置,包括安全带插口、金属连杆、螺母、螺栓、气缸体、气缸端盖、活塞、发火装置、炸药,气缸体与座椅金属骨架刚性连接,活塞安装于气缸体内,活塞的上端面与气缸体的内腔面形成燃烧腔,燃烧腔内设有炸药和发火装置;气缸体的下端安装有气缸端盖,活塞的外锥面、气缸端盖的内锥面以及气缸体的内壁共同形成工作腔。本发明在汽车遭遇严重碰撞或侧翻事时通过瞬时向下拉拽安全带插口,进一步张紧安全带,将驾驶员或乘客贴附至安全座椅靠背以提高安全性,同时该装置结构简单、安装便利、成本低、执行可靠,便于量化生产和普遍应用。


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    Title :

    Automobile safety belt tightening device


    Additional title:

    一种汽车安全带束紧装置


    Contributors:
    CAO LONGBIN (author) / WANG GONGMING (author) / YANG LEI (author) / ZHANG XIA (author) / QU JIAHAO (author) / XIAO HUAN (author) / WANG XUEFENG (author) / XIA MIN (author) / WANG FEI (author)

    Publication date :

    2023-09-29


    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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