The invention discloses a locking mechanism and a safety belt retractor. A guide cavity is formed in the end face of one side of a main gear, one end of a clutch fixing piece is embedded in the guidecavity, at least one locking trigger protrusion is arranged on the inner ring of the main gear, and a locking block is correspondingly arranged on each locking trigger protrusion; one end of the locking block is rotationally connected to the clutch fixing piece, the other end of the locking block abuts against one end of a reset spring, the other end of the reset spring abuts against the clutch fixing piece, and the main gear and the clutch fixing piece are arranged on the peripheral side of a transmission wheel in a sleeving mode. When the main gear rotates forwards relative to the clutch fixing piece, the locking trigger protrusion pushes the locking block to rotate to be in contact engagement with the transmission wheel; during reverse rotation, the locking block rotates to be separatedfrom the transmission wheel under the action of the reset spring. The locking mechanism has the effects that the vibration noise generated by the locking mechanism is remarkably reduced, the stability of the locking mechanism in the operation process is remarkably improved, and the functions of one-way rotation locking and reverse reset of the main gear are achieved by arranging the reset spring.

    本发明公开一种锁止机构及安全带卷收器,主齿轮一侧端面开设有导向腔室,离合固定片一端嵌设在导向腔室内,主齿轮的内圈设置有至少一个锁止触发凸起,每个锁止触发凸起对应的设有锁止块;锁止块一端转动连接在离合固定片上,锁止块另一端与复位弹簧的一端抵接,复位弹簧另一端抵接在离合固定片上,主齿轮和离合固定片套设在传动轮的外周侧;主齿轮相对离合固定片正向转动时,锁止触发凸起推动锁止块转动至与传动轮接触啮合状态;反向转动时,锁止块在复位弹簧的作用下转动至与传动轮脱离接触状态。效果:锁止机构产生的振动噪音显著减小,锁止机构运行过程中的平稳性显著提高,通过设置复位弹簧实现了主齿轮单向转动锁止、反向复位的功能。


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    Title :

    Locking mechanism and safety belt retractor


    Additional title:

    一种锁止机构及安全带卷收器


    Contributors:
    HU YANSHU (author) / SHI HOULIANG (author) / WEI DAYONG (author) / LIU YANG (author) / SONG BO (author) / LI MINGYANG (author) / LIU YANGUANG (author) / HUANG LAIGUO (author)

    Publication date :

    2020-05-29


    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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