The invention aims to provide a turnover water-inflow-preventing ventilator device which is compact in structure, good in ventilation quality and capable of meeting the ventilation requirement duringnormal operation, automatically closes for water prevention during turnover and automatically keeping ventilation after turnover is recovered. The turnover water-inflow-preventing ventilator device comprises an air duct and a protection assembly, the bottom of the air duct communicates with a cabin, the protection assembly is arranged at one end of the air duct, a check valve is arranged between the air duct and the protection assembly, and a gravity valve disc matched with the check valve is hinged to the end, close to the protection assembly, of the check valve; a sealing washer is arrangedbetween the gravity valve disc and the check valve, an opening is formed in the bottom of the protection assembly, and the cross section of the opening is parallel to the horizontal plane. The invention is applied to the technical field of ventilator waterproof structures.
本发明旨在提供一种结构紧凑、通风质量好并且能满足正常作业时的通风透气,翻转时自动关闭防水,待翻转恢复后再自动保持通风透气的翻转防进水通风筒装置。本发明包括风筒和防护组件,所述风筒的底部与舱室相连通,所述防护组件设于所述风筒的一端上,所述风筒与所述防护组件之间设有止回阀,所述止回阀靠近所述防护组件的一端上铰接有与所述止回阀相适配的重力阀盘,所述重力阀盘与所述止回阀之间设有密封垫圈,所述防护组件的底部开设有开口,所述开口的横截面与水平面相平行。本发明应用于通风筒防水结构的技术领域。
Turnover water-inflow-preventing ventilator device
一种翻转防进水通风筒装置
2021-02-26
Patent
Electronic Resource
Chinese
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