| 摘要 |
<p>Air ventilation according to the present invention includes: a first duct housing arranged in the cabin of a vehicle; a plurality of vertical blades arranged rotatably left and right in a front part inside the first duct housing; a plurality of horizontal blades arranged upward and downward in the central part inside the first duct housing; a second duct housing with the leading end arranged closely contacting the rear end of the first duct housing; a first hub with the center provided with a rotary connection hole arranged in a front part inside the second duct housing; a second hub with the center provided with a rotary connection hole arranged in a rear part inside the second duct housing; a fan with the center provided with a rotary connection hole arranged between the first and the second hub inside the second duct housing; a rotor provided with a connection pin inserted in the rotary connection hole of the first hub, the rotary connection hole of the fan, and the rotary connection hole of the second hub, and fixed in the rotary connection hole of the fan, the connection pin having a leading end connected to a rotation bar; and the rotation bar having a pair of horizontal bars arranged between a pair of connection pieces mounted through a link piece to the horizontal blades for receiving the connection pin, wherein the external air flowing into the vehicle through the duct housing automatically operates the fan and the rotor which in turn along with the rotation bar automatically operates the horizontal blades so as to supply the pleasurable natural air inside the vehicle, thus significantly enhancing the commercial viability of the air ventilation; and additionally the lower part of the first duct housing is provided with a dial knob to adjust the rotational speed of the fan and rotor and the operational speed of the horizontal blades, thereby considerably enhancing convenience for the user.</p> |
