Ventilation equipment with air supplementing channel and using method thereof
A technology for ventilation equipment and air supply, applied in separation methods, cleaning methods and utensils, chemical instruments and methods, etc., can solve the problems of pollution, less air supply openings, inability to filter polluted gases and dust, etc., to improve air quality and speed up. The effect of air flow and increasing air supply speed
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[0027] Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.
[0028] See figure 1 The present invention provides a technical solution: a ventilation device with a replacement channel, including a vent box 1, a fixed shaft 12 at the upper panel right end face at the upper panel of the vent, and the front and rear sides of the fixed shaft 12 are connected. The cover 11, the lower end surface of the upper cover 11 is provided with hinge 9, and the hinge 9 is fixedly connected to the lower cover 7, the lower end surface of the lower cover 7 is equal to the lower side panel of the venting...
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