The load trailer device for the automobile crane comprises a connecting rod, connecting supports are rotationally arranged at the two ends of the connecting rod, two inner telescopic sleeves are fixed to the end, away from the connecting rod, of each connecting support, and each inner telescopic sleeve is movably sleeved with an outer telescopic sleeve; a first spring is fixed between the outer telescopic sleeve and the inner telescopic sleeve, a certain gap is reserved between the inner side wall of the outer telescopic sleeve and the outer side wall of the inner telescopic sleeve, limiting sliding grooves are formed in the upper end face and the lower end face of the inner telescopic sleeve, and limiting clamping blocks used in cooperation with the limiting sliding grooves are fixed to the inner side wall of the outer telescopic sleeve. Through cooperation of an outer telescopic sleeve, an inner telescopic sleeve and a first spring, it is avoided that when a dragged test car trailers and brakes emergently, the test car extrudes the connecting support and the connecting rod due to inertia, deformation of the connecting support and the connecting rod is caused, and the service life of the connecting support and the connecting rod is affected.

    本发明公开了一种汽车起重机用负荷拖车装置,包括连接杆,连接杆的两端均转动设置有连接支架,每个连接支架远离连接杆的一端均固定有两个内伸缩套,每个内伸缩套的外部均活动套设有外伸缩套,外伸缩套与内伸缩套之间固定有第一弹簧,外伸缩套的内侧壁与内伸缩套的外侧壁之间留存一定的间隙,内伸缩套的上下端面均开设有限位滑槽,外伸缩套的内侧壁上固定有配合限位滑槽使用的限位卡块;本发明通过设置的外伸缩套、内伸缩套和第一弹簧的配合,避免被拖拽的试验车在拖车紧急制动时,试验车由于惯性对连接支架和连接杆进行挤压,造成连接支架和连接杆的变形,影响其使用年限。


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    Titel :

    Load trailer device for automobile crane


    Weitere Titelangaben:

    一种汽车起重机用负荷拖车装置


    Beteiligte:
    XU LEI (Autor:in) / LI XUEWU (Autor:in) / FENG CHEN (Autor:in) / LI CHENG (Autor:in)

    Erscheinungsdatum :

    2022-03-15


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60D Fahrzeugverbindungen , VEHICLE CONNECTIONS / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile / F16F SPRINGS , Federn



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