The invention relates to a water-proof ventilation device of an improved structure and belongs to the technical field of ventilation devices. The water-proof ventilation device of the improved structure comprises a base body, window-shades installed on the base body and a ventilation box connected with the window-shades; the window-shades comprises a window frame and a plurality of rotating leaves movably arranged on the window frame; the ventilation box comprises a box body and a plurality of wind guide plate sets arranged in the box body, an air inlet is formed in one side of the box body, an air outlet is formed in the other side, and wind guide channels allowing air to pass by are formed in the wind guide plate sets and are communicated with the air inlet and the air outlet respectively. According to the water-proof ventilation device of the improved structure, the rotating leaves of the window-shades are made of aluminium alloy, and the machining technology is particularly disclosed. The water-proof ventilation device subjected to structural improvement has a good ventilation effect and the good waterproof performance, the combination property of the rotating leaves of the window-shades is good, and therefore the service life of the window-shades is prolonged.
Water-proof ventilation device of improved structure
2015-06-17
Patent
Electronic Resource
English
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