Negative feedback type air valve device

Abstract

The invention relates to a negative feedback type air valve device. The negative feedback type air valve device is arranged in a ventilation pipeline, and is used for adjusting the sizes of the air volume and the air speed of air entering an air inlet which is arranged at the front end of the ventilation pipeline, so the air volume and the air speed of air delivered from an air delivery port which is arranged at the back end of the ventilation pipeline are constant. The negative feedback type air valve device is characterized in that the negative feedback type air valve device is provided with a first adjusting part, a push-pull part, an air sensing part and a guide part, wherein the first adjusting part is used for adjusting the air volume and the air speed, and comprises a plurality of blade components, a left mounting plate, a right mounting plate and a transmission plate, each blade component comprises a blade, two transmission shafts and a connecting rod, the push-pull part is used for pushing and pulling the transmission plate to drive the blade components to be simultaneously opened and closed, the air sensing part is used for sensing the air volume and the air speed of the air passing through the first adjusting part, and driving the push-pull part to push and pull the transmission plate, the air sensing part comprises a wing-shaped float and a float connecting component, and the guide part is used for enabling the float connecting rod to directionally move in the vertical direction.

Description

technical field [0001] The invention relates to a negative feedback air valve device. Background technique [0002] In the air supply outlet of the air conditioner and the air supply outlet of some buildings, in order to adjust the wind speed so that the wind can be sent out of the air outlet more evenly, and also to adjust the air volume to a suitable size so that the wind speed and air volume can be kept constant, a damper device is generally installed. , most of the existing damper devices are mechatronic devices with complex structures and increased energy consumption. [0003] In order to simplify the above-mentioned air valve device, someone designed a very simple air bag type air valve device, the air bag is sandwiched between two windshields, and the air bag is used to sense the wind at the air inlet, thereby pushing the windshield to move, through Increase or decrease the area of ​​the windshield and the ventilation duct to adjust the air volume. [0004] Although...

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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, due to the inhomogeneity of the structure of the airbag itself, the driving force will be uneven, thereby causing the adjustment of the air flow to be unable to be constant. At the same time, the airbag It is also prone to aging, deformation, air leakage and other adverse conditions. On the other hand, this airbag type air valve device cannot adjust the wind speed, and the initial value cannot be preset, the function is very limited, the control accuracy is not high, and it needs Regular maintenance and overhaul is very troublesome

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