Pincer type arcuate ventilator

Abstract

The invention relates to the tong arc ventilator which contains several frames, several wind shields, several rain shields, sandalwood strip, drainage system, flashing plate and supporting system. The frames are parallel arranged along the horizontal line and each frame appears forcipate. The frame contains the lower frame, two wind shield frames and two upper frames. The lower frame is a trapezoid without lower band. The two wind shield frames are arc and are fixed on the lower and upper frames symmetrically. The two upper frames are big-shape and are set on both sides of the lower frame. The inner feet of the two upper frames are fixed on the two ends on the upper band of the lower frame. Their T-shape outer feet support to the lower frame and the two wind shield frames. The wind shields are parallel fixed on the wind shield frames appearing louver. Compared with the existing techniques, the invention has advantages of rational structure arrangement, long service life and good lighting capability.

Description

technical field [0001] The invention relates to a ventilator, in particular to a clamp type arc ventilator. Background technique [0002] There are two types of ventilation in factory buildings: mechanical ventilation and natural ventilation. Mechanical ventilation is driven by mechanical ventilation equipment to make air flow and ventilate. Natural ventilation is to use the heat pressure and wind pressure of the air to form the natural flow of air, so as to achieve the purpose of ventilation, without power, pollution-free, environmental protection and energy saving. [0003] The principle of thermal pressure and wind pressure formation of air: [0004] Hot pressing: After the air in the factory building is heated, its volume expands and the bulk density becomes smaller, so that the air inside and outside the factory building forms a gravity difference. The outdoor air enters the room from the bottom of the factory building, and the indoor air is discharged from the upper ...

AI Technical Summary

Problems solved by technology

Rectangular ventilation skylights generally consist of skylight frames, windshields, rainshields, and roof panels. The air resistance coefficient at the throat is 4.5 to 6. The ventilation volume is small, the structure is complex, and it is heavy, which is not good for earthquake resistance; the sunken ventilation skylight It is to use the space of the height part of the roof truss to place some roof panels on the lower chord of the roof truss. The resistance coefficient of the throat is also about 4.5-6, the ventilation volume is small, and there is torque on the upper and lower chords of the roof truss. The component cross-section is large and easy to accumulate. ash, drainage treatment is complicated, window sash structure is complicated, and it does not meet the development needs of modern light steel structure factory buildings

[0008] After the 1990s, domestic roof ventilators developed rapidly, but basically followed the design idea of ​​rectangular ventilation skylights, only changing the shape of the outer arc without making substantial changes

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