The present invention relates to an apparatus for opening and closing a safety door of a construction lift unit. The apparatus for opening and closing a safety door includes: a guide which is coupled to an opening and closing unit in a sliding manner; fixing bolts which fix the opening and closing coupling shaft and the guide while being coupled to the guide; a fixing plate which is fixed to a surface of the guide; a rotary plate which is coupled to the fixing plate with a hinge shaft to rotate in a horizontal direction; a case which is fixed to the fixing plate to limit the rotation of the rotary plate on the fixing plate within a range of 90 degrees; a recovery spring which has an end coupled to the rotary plate and the other end coupled to the case to pull the rotary plate to the case to elastically support a surface of the rotary plate of the corresponding surface; a solenoid unit which is installed in the case and operates the driving shaft when receiving a supply of powder to press and rotate the rotary plate to the fixing plate; and the first and second magnet units which are individually installed to the fixing and rotary plates to elastically push off the rotary plate when the rotary plate rotates against the fixing plate. The safety door opening and closing unit is coupled to a safety door frame without puncturing the safety door frame or welding the safety door opening and closing unit and the safety door frame. The guide of the safety door opening and closing unit is detachably coupled to the safety door frame to simplify the installation and replacement of the safety door opening and closing unit with the simple operation of tightening or releasing the fixing bolts.

    본 발명은 건설용 리프트의 안전문 개폐장치에 관한 것으로, 안전문개폐부는, 개폐부결합축에 슬라이드 결합되는 가이드와, 가이드에 체결되어서 가이드를 개폐부결합축에 고정하는 고정볼트와, 가이드의 일면에 고정되는 고정판과, 수평방향으로 회동되도록 고정판에 힌지축으로 결합되는 회전판과, 고정판에 고정되어서 회전판이 고정판에 대해 90°의 범위 내에서만 회전되도록 제한하는 케이스와, 일단이 회전판에 결합되고 타단이 케이스에 결합되어서 회전판을 케이스 측으로 당겨서 회전판의 일면이 케이스의 대응면에 탄성적으로 지지되도록 하는 복원스프링과, 케이스 내부에 설치되고 전원이 공급되면 작동축을 작동시켜서 회전판을 고정판 측으로 밀어서 회전시키는 솔레노이드와, 고정판 및 회전판에 각각 고정되고 회전판이 고정판 측으로 회동될 시 회전판을 탄성적으로 밀어내는 제1자석 및 제2자석으로 이루어진다. 따라서, 안전문개폐부를 안전문틀에 결합시키기 위해 안전문틀을 천공하거나 안전문개폐부 및 안전문틀을 용접시킬 필요가 없으며, 안전문개폐부의 가이드를 안전문틀의 개폐부결합축에 착탈시키고, 고정볼트를 조이거나 푸는 간단한 작업만으로 안전문개폐부를 간편하게 설치 또는 교체할 수 있다.


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    Title :

    Safety door closing and opening device of a construction Lift


    Additional title:

    건설용 리프트의 안전문 개폐장치


    Contributors:

    Publication date :

    2018-02-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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