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.
Field lift door safety open-close device
현장용 리프트도어 안전개폐장치
2024-03-18
Patent
Electronic Resource
Korean
IPC: | B66B Aufzüge , ELEVATORS |