The portal frame good in stability comprises a portal beam, fixing plates are fixedly connected to the middle ends of the two sides of the bottom of the portal beam, connecting pieces are movably connected between the front sides and the rear sides of the fixing plates, threaded cylinders are fixedly connected to the bottoms of the connecting pieces, and the bottoms of the surfaces of the threaded cylinders are movably sleeved with square shells; the bottom of the inner cavity of the square shell is movably connected with a threaded column. Through cooperative use of the gantry cross beam, the connecting pieces, the threaded cylinders, the threaded rods, the bottom plate, the square shells, threaded columns, universal wheels, threaded sleeves, rotating rods, connecting plates, fastening bolts and threaded holes, the portable gantry has the advantages of being high in stability, capable of adjusting the height and convenient to fold, and solves the problems that an existing gantry is poor in stability and inconvenient to fold. The problems that in the prior art, equipment is prone to shaking in the using process, meanwhile, when the equipment is hoisted and maintained, height adjustment cannot be conducted according to the size of the equipment, folding cannot be conducted, and a large space is occupied in the placing process are solved.

    本发明公开了一种稳定性好的龙门架,包括龙门横梁,所述龙门横梁底部两侧的中端均固定连接有固定板,所述固定板的前后两侧之间活动连接有连接件,所述连接件的底部固定连接有螺纹筒,螺纹筒表面的底部活动套设有方壳,方壳内腔的底部活动连接有螺纹柱。本发明通过龙门横梁、连接件、螺纹筒、螺纹杆、底板、方壳、螺纹柱、万向轮、螺纹套、转杆、连接板、紧固螺栓和螺纹孔的配合使用,具备稳定性强、可对高度进行调节且方便折叠的优点,解决了现有的龙门架稳定性能较差,在使用的过程中很容易发生晃动,同时,在起吊维修设备时,无法根据其尺寸进行高度调节,且无法进行折叠,在放置的过程中会占用大量的空间的问题。


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    Title :

    Good-stability portal frame


    Additional title:

    一种稳定性好的龙门架


    Contributors:
    TANG JINWU (author)

    Publication date :

    2022-04-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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