The present invention relates to an opening/closing apparatus for a platform door of a cargo lift consisting of a lift car, a lift car door and a platform door. More specifically, a lift rod is installed on a lower portion of the lift car door to be able to rotate at 90 degrees, and if the lift rod is stretched while being rotated at 90 degrees, the platform door can be opened at the same time when the lift car door is vertically opened in a state that a lower portion of the platform door is placed by the lift rod. According to the present invention, a guide rod is configured in a longitudinal direction on the outside of the lift car door such that the lift car door and the platform door can be opened at the same time, a rack gear is welded and coupled to both ends of the guide rod, and a spur gear which is engaged and coupled with the rack gear is configured in the opening/closing apparatus for a platform door of a cargo lift. A lift rod is formed at one side of the spur gear and rotated at 90 degrees according to a rotation of the spur gear engaged and coupled with the rack gear while the guide rod and the rack gear move according to an operation of a solenoid valve installed at a center of the guide rod. At the same time, when the lift car door is lifted, the platform door placed on the lift rod can be simultaneously lifted.

    본 발명은 승강카와 승강카도어 및 승강장도어로 구성되어지는 화물용 승강기의 승강장도어 개폐장치에 관한 것으로서 보다 상세하게는 승강카도어의 하부에 90도 회전가능하도록 승강봉이 설치되어져 상기 승강봉이 90도 회전하면서 펼쳐지게 되면 상기 승강봉에 의하여 승강장도어의 하부가 안착되어진 상태에서 상기 승강카도어를 수직으로 개방시 승강장도어가 동시에 개방가능하도록 발명한 것이다. 상기와 같이 승강카도어와 승강장도어를 동시개방가능하도록 승강카도어의 외측에는 길이방향으로 가이드봉이 구성되고 상기 가이드봉의 양단부에는 렉기어가 용접결합되어지며 상기 렉기어와 치합결합되어지는 평기어로 구성되어지되, 상기 평기어의 일측으로 승강봉이 형성되어져 상기 가이드봉의 중앙에 설치되어지는 솔레노이드밸브의 작동에 따라 가이드봉과 렉기어가 이동하면서 상기 렉기어와 치합결합되어진 평기어의 회전에 따라 승강봉이 90도 회전되면서 승강카도어를 승강시 상기 승강봉에 안착되어진 승강장도어를 동시에 승강가능하도록 구성되어진 것이다.


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    Title :

    SYSTEM OF OPENING AND CLOSING DOOR FOR FREIGHT ELEVATOR


    Additional title:

    화물용 승강기의 승강장도어 개폐장치


    Contributors:

    Publication date :

    2018-04-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS / E05F DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION , Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung



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