The invention discloses an elevator car accidental movement control device and relates to traction type elevators. The device is provided with an idler wheel support arm, a support arm positioning plate, an idler wheel set, idler wheel pressing rods, pressing springs, two wedge blocks, an electromagnetic movable arm, an electromagnet, an upper plate, a lower plate, a vertical plate, a reset screw and round rods, wherein the upper plate, the lower plate and the vertical plate constitute a machine base; the two wedge blocks are oppositely and symmetrically fixed in the upper plate and the lower plate of the machine base, the oblique surface of each wedge block is provided with a groove, and the wedge blocks penetrate through holes in the vertical plate and then are fixed to the machine base; the central point of the idler wheel support arm is fixed to the electromagnetic movable arm, the idler wheel support arm is a cross rod, and the left round rod and the right round rod are symmetrically and perpendicularly arranged on the back side of the idler wheel support arm; the round rods are sleeved with shaft holes of the idler wheel set, and the idler wheel set is made to be placed in the grooves in the oblique surfaces of the wedge blocks and positioned; the ends of the idler wheel pressing rods are pressed on the idler wheel set, and elastic force is applied to the idler wheel set by the pressing springs to fix the idler wheel set; the support arm positioning plate is arranged on the bottom of one end of the idler wheel support arm to be used for limiting the downward movement of the idler wheel support arm.


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    Title :

    Elevator car accidental movement control device


    Contributors:
    CHEN LINTAO (author) / WANG JIANJUN (author)

    Publication date :

    2015-12-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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