Ventilating shutter capable of being automatically closed

Abstract

The invention discloses a ventilating shutter capable of being automatically closed. The ventilating shutter comprises an outer frame and a plurality of sets of shutter blade assemblies arranged in the outer frame. Each shutter blade assembly in each set comprises a hinge pin, a blade and a support, wherein the blades and the supports are hung below the hinge pins. The ventilating shutter is opened under the gravity effect of the blades and the supports so that air inside and outside a room can circulate. When being affected by external wind of a certain amount, the blades can overcome the gravity effect of the blades and the supports and rotate around the hinge pins to close ventilating holes so that the ventilating shutter can be closed automatically and the strong wind and rain water can be prevented from entering the room. Moreover, the hinge pins are provided with torsion springs, so that the blades do not swing along with the wind below the hinge pins. The ventilating shutter is simple in structure, low in manufacturing cost, convenient to maintain, high in reliability, capable of being automatically closed under the effect of the external wind without a control system, and particularly suitable for being used in bathrooms and kitchens, decorated in a closed mode, in common families.

Description

technical field [0001] The invention relates to a louver, in particular to a ventilation louver which can be automatically closed. Background technique [0002] At present, shutters are mainly used for indoor and outdoor air circulation of closed buildings, especially in places such as bathrooms and kitchens. The circulation of indoor and outdoor air is especially important. The shutters in the prior art mainly contain the following types: The louvers on the air fan can only be opened when the exhaust fan is started and can only draw the indoor air out of the room. When the exhaust fan stops working, the indoor air is in a closed state. Turning on the gas water heater in the bathroom for bathing is prone to poisoning accidents, but after turning on the exhaust fan, the air flow in the bathroom will speed up, which will bring discomfort to the bathers, especially in winter, the elderly and children are prone to catch a cold; Closed shutters, although the shutters can be open...

AI Technical Summary

Problems solved by technology

[0002] At present, shutters are mainly used for indoor and outdoor air circulation of closed buildings, especially in places such as bathrooms and kitchens. The circulation of indoor and outdoor air is especially important. The shutters in the prior art mainly contain the following types: The louvers on the air fan can only be opened when the exhaust fan is started and can only draw the indoor air out of the room. When the exhaust fan stops working, the indoor air is in a closed state. Turning on the gas water heater in the bathroom for bathing is prone to poisoning accidents, but after turning on the exhaust fan, the air flow in the bathroom will speed up, which will bring discomfort to the bathers, especially in winter, the elderly and children are prone to catch a cold; Closed shutters, although the shutters can be opened and closed as required, need to be controlled manually, which brings great inconvenience to people's lives; the third is the fixed blade shutters, although the shutters can play indoor and outdoor air circulation. However, the blinds cannot be closed when needed, which brings great inconvenience to people's lives; the fourth is the rolling shutter, its main function is to shade the sun, and it cannot achieve the purpose of wind and rain protection; the fifth is Although the blinds with a control system can realize the function of automatically closing the blinds, due to the need to configure corresponding detection devices and electric drive devices, the manufacturing cost is high and the mechanism is complicated. The detection and motor-driven blinds opening and closing control system cannot be used normally in places with high humidity and heavy oily smoke such as bathrooms and kitchens, resulting in low reliability. The reason is that the water vapor and oily smoke in such places make the detection device Ineffective, so it is difficult to promote to ordinary household use

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