An automatic locking and opening device for the rear door of a dump truck box comprises locks, connecting rods, U-shaped forks and locking levers and is characterized in that the locks, the connecting rods, the U-shaped forks and the locking levers are sequentially connected to form the automatic locking and opening device and arranged on both sides of the bottom of the dump truck box. Two bow-shaped pressing plates are respectively arranged on a main frame under the locking levers to press the other ends of the locking levers, and two limit shafts are respectively arranged in front of the vertical ends of the locking levers to limit the stretch amplitude of the locking levers. The automatic locking and opening device has the advantages that the device is simple in structure, easy to mount, low in price and long in service life, energy can be saved, additional power is not needed, the device can automatically open the rear door of the dump truck box when the dump truck box is lifted and can automatically lock the rear door of the dump truck box after the dump truck box drops, operation procedures by a driver are reduced, and work efficiency of a dump truck is increased.


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    Title :

    Automatic locking and opening device for rear door of dump truck box


    Contributors:
    ZHOU FENG (author)

    Publication date :

    2015-04-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS



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