The invention provides a forklift portal frame. The forklift portal frame comprises a portal frame body, a connecting frame and a pallet fork. The lower end of the portal frame body is hinged to a forklift body and can rotate relative to the forklift body. The pallet fork is connected with the portal frame body through the connecting frame. The connecting frame is driven by lifting hydraulic cylinders with the lower ends hinged to the portal frame body to move up and down, and therefore the pallet fork is driven to move up and down. The portal frame body is driven by inclined hydraulic cylinders to rotate so that the angle of the pallet fork during cargo forking can be adjusted. An opposite type photoelectric sensor emitter is arranged at the upper end of the portal frame body. An oppositetype photoelectric sensor receiver is arranged on the connecting frame. The opposite type photoelectric sensor emitter and the opposite type photoelectric sensor receiver cooperate to judge whether the connecting frame moves upwards to the highest position or not. By means of the forklift portal frame, it can be conveniently known that the pallet fork has been lifted to the limit height, and theforklift portal frame is suitable for being used by green hands.

    本发明提供了一种叉车门架,叉车门架包括门架本体、连接架和货叉,门架本体的下端与叉车本体铰接,其可相对于叉车本体旋转,货叉通过连接架与门架本体连接,连接架通过下端与门架本体铰接的提升液压缸驱动上下移动,从而带动货叉上下移动,门架本体通过倾斜液压缸驱动旋转,以实现能够调整货叉叉装货物时的角度,门架本体的上端设置有对射式光电传感器发射器,连接架上设置有对射式光电传感器接收器,对射式光电传感器发射器与对射式光电传感器接收器配合实现判断连接架是否上移到最高位置。本发明能够比较方便的知晓货叉已提升到极限高度,适合新手使用。


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    Title :

    Forklift portal frame


    Additional title:

    一种叉车门架


    Contributors:
    ZHANG ENLAI (author)

    Publication date :

    2021-02-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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