Fireproof thin roof ventilator
A ventilator, thin technology, applied in the field of ventilators, can solve the problems of poor waterproof performance and inability to adjust the ventilation volume, etc., to improve the efficiency, prevent rainwater from entering the room through the ventilator, and expand the ventilation volume.
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[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0023] A fire-resistant thin roof ventilator such as figure 1 and figure 2 As shown, the installation frame 1 is included, and the installation frame 1 is provided with an ordinary ventilation mechanism. The arc-shaped rotating plate 17, the air vent 21 opened on the mounting frame 1, and the second drive mechanism connected to the mounting frame 1 for drivi...
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