The embodiment of the invention relates to the technical field of cranes and particularly discloses a protective device of the crane. The protective device of the crane comprises a crawling ladder stand column and a lifting seat. The lifting seat is provided with a support channel. The crawling ladder stand column is arranged in the supporting channel in penetrating and sliding manners. The height, relative to the crawling ladder stand column, of the lifting seat is adjusted through a height adjusting assembly. The other side of the lifting seat is provided with an anti-fall assembly. According to the protective device of the crane, by operating an operation handle to drive a rotating cylinder to rotate, then the direction of an inclined face of an anti-fall supporting block can be adjusted, when the inclined face of the anti-fall supporting block is adjusted to be upward, the height adjusting assembly can be utilized to smoothly adjust the height position, relative to the crawling ladder stand column of the lifting seat; and after the height of the lifting seat is adjusted to be a designated position, since the bottom face of the anti-fall supporting block is a flat face, the anti-fall supporting block arranged in the anti-fall support groove in an abutting manner can achieve a good supporting effect on the lifting seat, the lifting seat is prevented from falling accidentally,and the safety is good.

    本发明实施例涉及起重机技术领域,具体公开了一种起重机的防护装置,包括爬梯立柱和升降座;所述升降座上开设有支撑通道,所述爬梯立柱贯穿滑动设于所述支撑通道内,且所述升降座相对于爬梯立柱所处的高度通过调高组件进行调整;所述升降座的另一侧设置有防坠组件。本发明实施例通过操作操作手柄带动旋转筒旋转,进而能够调整防坠支撑块上倾斜面的朝向,当调整防坠支撑块的倾斜面朝上,此时利用调高组件能够顺利的调整升降座相对于爬梯立柱所处的高度位置,当升降座的高度调整到指定位置后,由于防坠支撑块的底面为平面,抵在防坠支撑槽内的防坠支撑块能够对升降座起到良好的支撑效果,避免升降座意外下坠,安全性高。


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    Title :

    Protective device of crane


    Additional title:

    一种起重机的防护装置


    Contributors:
    HE XIGUO (author) / HE SHUGUI (author) / LI HONGSHENG (author) / XU XUEQIANG (author) / HE FAZHAN (author) / HE JINGHAN (author)

    Publication date :

    2020-11-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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