The invention relates to a child safety seat safety belt tensioning device. A knob assembly is arranged on a child safety seat, the knob assembly comprises a rotating rod and an internal tooth knob, a plurality of internal teeth are evenly distributed on the inner side face of the internal tooth knob in the circumferential direction, a clamping tooth hole is formed in the rotating rod, and clamping teeth matched with the internal teeth are movably arranged in the clamping tooth hole; and the inner side ends of the clamping teeth are connected with an elastic reset mechanism, the stress contact faces of the clamping teeth and the inner teeth are inclined faces, and when a safety belt is tightened and the internal tooth knob continues to be rotated, the clamping teeth continuously retract and reset under the action of the inner teeth and the elastic reset mechanism. Due to the arrangement of the knob assembly, after the safety belt is tightened, the internal tooth knob continues to be rotated, the internal tooth knob can slip and make a biting sound, the safety belt cannot continue to be tightened after being tightened to a proper position, and meanwhile, the safety belt can be reminded that the safety belt is tightened; and when the user tightens the internal tooth knob safety belt, the problem of loosening and tensioning of the safety belt is not required to be considered, and the use is convenient.

    本发明涉及一种儿童安全座椅安全带拉紧装置,儿童安全座椅上设置有旋钮组件,旋钮组件包括转杆和内齿旋钮,内齿旋钮内侧面沿周向均匀分布有若干内齿,转杆上开设有卡齿孔,卡齿孔内可活动的设置有与内齿相配合的卡齿,卡齿的内侧端与弹性复位机构连接,卡齿和内齿的受力接触面为斜面,当安全带收紧后,继续转动内齿旋钮时,卡齿在内齿和弹性复位机构的作用下不断回缩、复位。本发明设置有旋钮组件,当安全带收紧后,继续转动内齿旋钮,内齿旋钮会出现打滑现象,并发出叮叮的响声,在安全带拉紧到合适位置后不会继续收紧,同时还能提示安全带已经收紧,用户在旋紧内齿旋钮拉紧安全带时,不需要再考虑安全带拉松拉紧的问题,便于使用。


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    Title :

    Child safety seat safety belt tensioning device


    Additional title:

    一种儿童安全座椅安全带拉紧装置


    Contributors:
    LIU JIANCHUN (author) / JI XUEWEI (author)

    Publication date :

    2021-04-06


    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 / B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet




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