The invention discloses a portal frame system and a forklift thereof. The portal frame system comprises an outer portal frame; the middle door frame is connected with the outer door frame in a liftable manner; the inner portal frame is connected with the middle portal frame in a liftable mode, an inner sliding frame is arranged on the inner portal frame in a liftable mode, a side shifter is arranged on the inner sliding frame, and a pallet fork is connected to the side shifter; wherein extending parts are integrally arranged on channel steel on the two sides of the outer door frame so as to increase the length of the cross section of the channel steel. The extension parts are arranged on the channel steel on the two sides of the outer portal, so that the cross sectional areas of the channel steel on the two sides of the outer portal are increased, the bending resistance of the outer portal is greatly improved, meanwhile, the frame reinforcing structure composed of the multiple sets of cross beams and rib plates is arranged on the outer portal, the rigidity of the outer portal is effectively improved, and the service life of the outer portal is prolonged. And the shaking amount of the portal frame caused when the goods are lifted to a high position is reduced, the operation difficulty of a driver is reduced, the risk that the goods slide down or collide with the goods shelf is reduced, and the operation safety is improved.

    本发明公开了一种门架系统及其叉车,包括外门架;中门架,其可升降的与外门架连接;内门架,其可升降的与中门架连接,所述内门架上可升降的设置有内滑架,所述内滑架上设置有侧移器,所述侧移器上连接有货叉;其中:所述外门架的两侧槽钢上一体化设置有延伸部,以增加槽钢的横截面长度。本发明通过在外门架两侧的槽钢上设置延伸部,进而增加了外门架两侧槽钢的横截面积,大幅提高外门架抗弯性能,同时,通过在外门架上设置由多组横梁和筋板构成的框架加强结构,有效提高了外门架的刚性,减少货物被起升到高位时造成的门架晃动量,降低了驾驶员操作的难度,降低了货物滑落或撞货架的风险,提高了操作安全性。


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    Title :

    Portal frame system and forklift thereof


    Additional title:

    门架系统及其叉车


    Contributors:
    TIAN YONGCHAO (author) / LIU JINLIANG (author) / SUN JIAFENG (author)

    Publication date :

    2022-12-30


    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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