Air valve device

Abstract

The invention discloses a high flexible air valve device. The air valve device can adjust air quantity under a gale situation. The air valve device which is used for adjusting the air quantity entered from an air inlet of the front end of a ventilating pipeline is arranged at the position of the ventilating pipeline, and therefore the air quantity sent by an air outlet of a rear end of the ventilating pipeline is constant. The air valve device is characterized by comprising an air-stopping portion, at least one air receiving portion, a positioning portion, a ventilation quantity setting portion and an air bag sensitivity maintaining portion. The air-stopping portion is used for stopping air. The air-stopping portion comprises an air-stopping plate and an elastic connecting structure; the at least one air-receiving is used for sensing size of air quantity, one end of the air-receiving portion is located on one side adjacent to an air outlet of the inner portion of the ventilating pipeline, and the other end is located at the outer portion of the ventilating pipeline, the at least one air-receiving portion comprises an air inlet nozzle, an air bag, an air bag supporting seat and a tube; the positioning portion comprises an air-stopping plate positioning portion and a positioning box; the ventilation quantity setting portion is used for adjusting the size of allowable ventilation quantity, and the ventilation quantity setting portion comprises an adjusting screw and an identification construction member.

Description

technical field [0001] The invention relates to a damper device. Background technique [0002] In the ventilation ducts of large warehouses, buildings, mines, etc., air volume control valves, that is, air valve devices, are generally installed to adjust the air volume and maintain a constant air volume. Most of the existing air valve devices are electromechanical integration devices. Complicated, while increasing energy consumption. [0003] Someone designed a very simple airbag type damper device. Two windshields and airbags are set inside the ventilation duct, and the airbag is sandwiched between the two windshields. The airbag opening is directly facing the air supply port. The wind from the air inlet pushes the windshield to move, and the air volume is adjusted by increasing or decreasing the area between the windshield and the ventilation duct. [0004] Although the air valve device of this airbag structure is simple in structure and does not require additional energy...

AI Technical Summary

Problems solved by technology

[0004] Although the air valve device of this airbag structure is simple in structure and does not require additional energy consumption, since the airbag opening is directly facing the air outlet and is sandwiched between two windshields, when the air volume entering the air inlet is large enough When the wind is blowing, the wind will generate enough driving force on the windshield to resist the thrust of the airbag on the windshield, and squeeze the airbag, so that the airbag cannot play its due role. It is impossible to adjust the air volume. In addition, this air valve device cannot preset the initial value, and the function is very limited.

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