An object of the present invention is to provide a safety opening and closing device for a lift door for a site, which can safely open a door and can be used semi-permanently. The safety opening and closing device of a lift door for a field comprises: a body unit; a shaft unit; a second magnet unit; a connection block unit; a rotation guide unit; and a hanging unit. a space is formed in the connection block unit, and the rotation guide unit is inserted through a first movement guide hole to be connected to the hanging unit.

    본 발명은 별도의 전력없이 자석의 자력을 이용하여 카에 구비된 도어를 개폐함으로써, 도어를 안전하게 개방하고, 반영구적으로 사용할 수 있다.


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    Title :

    Field lift door safety open-close device


    Additional title:

    현장용 리프트도어 안전개폐장치


    Contributors:

    Publication date :

    2024-03-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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