Adjustable lighting ventilator for roof shelter

Abstract

The invention discloses a roof wind-sheltering adjustable lighting ventilator, which comprises a bracket, wherein the bracket is provided with a lighting rain blocking plate, an arc-shaped wind blocking plate, an air outlet and a collecting ditch. The ventilator is characterized in that: wind-sheltering valve plates are hinged on the bracket at the upper end of the arc-shaped wind blocking plate respectively; both sides of the bracket are provided with window opening machines respectively; the window opening machines are connected with the wind-sheltering valve plates respectively; the heightof the arc-shaped wind blocking plate can be increased after the wind-sheltering valve plates are opened; the overall height of the ventilator can be lowered after the wind-sheltering valve plates are closed; and a collecting groove is formed between the arc-shaped wind blocking plate and a ventilation port. The ventilator has the advantages of simple structure, capability of realizing comprehensive adjusting function, including wind sheltering, ventilating, lighting and reducing wind load damage according to the climate environment, good ventilating, wind sheltering, lighting and sealing effects, difficulty in being damaged by wind power, long service life, wide application range, applicability to civil buildings after being provided with a protective net, capability of preventing rain, snow and dust from entering rooms and polluting the environment, high safety performance, convenience for installing and maintaining and low manufacturing cost.

Description

technical field [0001] The invention relates to a natural ventilation device on a building roof, in particular to an adjustable daylighting ventilator for roof shelter from wind. Background technique [0002] At present, natural ventilation roof ventilators are widely used in the roof ventilation design of large industrial plants. The standard roof ventilator commonly used at present is to be installed on the support at the corresponding air vent place on the roof, is located at the rain shield above the support, outer guard plate, flashing plate and diversion valve plate and constitutes. The structure of this roof ventilator is poor, and there are the following problems in use: 1. The air exhaust port and the drain port are always open, and when the diversion valve plate is closed, the external airflow cannot be prevented from entering the ventilation from the air exhaust port and the drain port. Therefore, rain, snow, sand and dust often fall on the diversion valve plate,...

AI Technical Summary

Problems solved by technology

The structure of this roof ventilator is poor, and there are the following problems in use: 1. The air exhaust port and the drain port are always open, and when the diversion valve plate is closed, the external airflow cannot be prevented from entering the ventilation from the air exhaust port and the drain port. Therefore, rain, snow, sand and dust often fall on the diversion valve plate, and then sewage falls into the building and pollutes the environment; 2. The external natural light must pass through the two layers of sunlight of the rain shield and the diversion valve plate The light transmittance of the two-layer solar panels is less than 50% after refraction, and the lighting capacity is poor; 3. The air outlet between the outer guard plate and the rain shield is in a “ride” state with free openings, and the wind protects the outside The board has the function of "pulling nails" from the inside to the outside, and the phenomenon that the fixing screws of the outer guard board are loosened and the outer guard board is torn from the nail cap by the wind often occurs, thus causing greater damage

[0004] 1. The external dimensions of the ventilator are too high and fixed. After installation, the wind load on the high part of the roof is relatively large, and it is easily damaged by wind force; 2. The opening and closing of the valve plate depends on the rope traction, which is affected by the steering node of the traction rope. The free end of the closed valve plate cannot be pulled in place according to the design, and the thickness of the closed valve plate itself reduces the actual ventilation area of ​​the air outlet, and the flow opening between the flashing plate and the flashing plate is small , so it has a great influence on the ventilation effect, and the ventilation effect is poor; the closed valve plate is closed by its own weight. And it is easy to be damaged; 3. The opening of the closed valve plate is opposite to the ventilation air flow, but it is in the same direction as the external wind force, which greatly affects the ventilation and wind shelter ability; 4. The lighting of the rain shield is greatly blocked by the upper part of the wind shield. The lighting angle is limited, the lighting area is small, and the lighting capacity is low; 5. The opening and closing control mechanism of the valve plate is set on the bracket above the vent, which is not conducive to installation and maintenance, and operators are in danger of falling from high altitude

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