A fireproof ventilator comprises an air duct, an air cap, a cover plate, a clamping hook piece and a triggering assembly. The upper portion of the air duct is covered with the air cap, a sliding sleeve is arranged in the air duct, the periphery of the sliding sleeve is fixedly connected with the inner wall of the air duct through a connecting rod, a sliding rod is fixedly arranged at the bottom end of the cover plate and inserted into the sliding sleeve, one side of the bottom end of the sliding rod is rotationally connected with the clamping hook piece, the clamping hook piece is matched witha buckling plate arranged on one side of the sliding sleeve, the other side of the sliding sleeve is fixedly connected with a connecting plate, a rotating shaft is arranged at the lower end of the connecting plate in a penetrating mode, and the triggering assembly is rotationally connected to the position, below the clamping hook piece, of the rotating shaft and matched with the clamping hook piece to drive the sliding rod to ascend and descend; and two end parts of the rotating shaft extend out of the wall surface of the air duct and are fixedly connected with hand wheels. The clamping hookpiece and the triggering assembly are arranged in the air duct, and the clamping hook piece and the triggering assembly are matched with each other, so that rapid opening and closing of the cover plate are achieved, and the fireproof function is achieved.

    本发明提出了一种防火通风筒,包括风筒、风帽和盖板,以及卡勾件和触发组件,风帽盖设于风筒上部,风筒内部设有滑套,滑套外周通过连杆与风筒内壁固定连接,盖板底端部固设有滑杆,滑杆插装于滑套内,且滑杆底端部一侧转动连接有卡勾件,卡勾件与设于滑套一侧部的卡扣板相配合,滑套另一侧部固定连接有连接板,连接板下端部穿设有转轴,转轴上位于卡勾件下方可转动连接有触发组件,触发组件与卡勾件相互配合,用于驱动滑杆升降,转轴两端部伸出风筒壁面,且在其端部固定连接有手轮。本发明通过在风筒内设置卡勾件和触发组件,卡勾件与触发组件相互配合,实现盖板的快速打开和关闭,且具有防火功能。


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    Title :

    Fireproof ventilator


    Additional title:

    一种防火通风筒


    Contributors:
    XU ZHOU (author) / ZHAO JING (author)

    Publication date :

    2021-01-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS



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