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An air extractor grill for a vehicle may include a housing fixedly mounted at a portion on the vehicle separating inside and outside spaces of the vehicle and provided with through holes having a plurality of grills, an outer cover coupled with one surface of an outside of the housing and having an

An air extractor grill for a vehicle may include a housing fixedly mounted at a portion on the vehicle separating inside and outside spaces of the vehicle and provided with through holes having a plurality of grills, an outer cover coupled with one surface of an outside of the housing and having an opened inner space provided with a plurality of outer barrier ribs, and a plurality of valves including upper portions fitted between the housing and the outer cover to be closely disposed to the housing to seal the through holes when the outer cover is connected with the housing, the plurality of valves being operated to open the through holes while lower portions of the plurality of valves rotate toward the outer cover based on the fixed upper portions when air inside the vehicle needs to be discharged to the outside of the vehicle.

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1. An air extractor grill for a vehicle, comprising: a housing fixedly mounted at a portion on the vehicle separating inside and outside spaces of the vehicle and provided with through holes having a plurality of grills;an outer cover coupled with one surface of an outside of the housing and having

1. An air extractor grill for a vehicle, comprising: a housing fixedly mounted at a portion on the vehicle separating inside and outside spaces of the vehicle and provided with through holes having a plurality of grills;an outer cover coupled with one surface of an outside of the housing and having an opened inner space provided with a plurality of outer barrier ribs; anda plurality of valves including upper portions fitted between the housing and the outer cover to be closely disposed to the housing to seal the through holes when the outer cover is connected with the housing, the plurality of valves being operated to open the through holes while lower portions of the plurality of valves rotate toward the outer cover based on the fixed upper portions when air inside the vehicle needs to be discharged to the outside of the vehicle,wherein an upper portion of each valve of the plurality of valves is provided with a plurality of valve holes which are spaced apart from each other in left and right directions of each valve,wherein each of the valve holes is penetrated and inserted with housing protrusions formed in the housing and cover protrusions formed in the outer cover,wherein each of the housing protrusions and each of the cover protrusions penetrate through each of the valve holes in an opposite direction to each other, andwherein ends of the housing protrusions penetrating through the valve holes and ends of the cover protrusions are each inserted into protruding holes which are formed in the outer cover and the housing. 2. The air extractor grill for a vehicle of claim 1, wherein each outer barrier rib of the plurality of outer barrier ribs is vertically spaced apart from each other in the outer cover, and air passages facing the valves are disposed between the outer barrier ribs or between the outer barrier ribs and the outer cover. 3. The air extractor grill for a vehicle of claim 1, wherein each outer barrier rib of the plurality of outer barrier ribs includes: a horizontal part extending in a direction in which the outer cover is coupled to the housing;an upward bent part bent upward from an end of the horizontal part; anda downward bent part bent downward from another end of the horizontal part, wherein the each outer barrier rib is formed so that at least both side portions of the each outer barrier rib are connected to an inner surface of the outer cover. 4. The air extractor grill for a vehicle of claim 1, wherein the housing protrusions and the cover protrusions alternately penetrate through the valve holes in left and right directions of the valve one by one. 5. The air extractor grill for a vehicle of claim 1, wherein the upward bent part is integrally provided with a support rib which protrudes toward the grill, a tip of the support rib is provided with the cover protrusions and the protruding holes, and when an end of each housing protrusion and an end of each cover protrusion penetrate through each corresponding valve hole and then are each inserted into corresponding protruding holes formed in the outer cover and the housing, both surfaces of the upper portion of the valve adhere to the tip of the support rib and a portion at which the grill is formed in the housing, respectively. 6. The air extractor grill for a vehicle of claim 5, wherein a notch groove extending in a straight line up to left and right sides of each valve is formed under the valve holes at one surface of each valve which directs to the outer cover, the notch groove is disposed under the support rib to prevent contact with the tip of the support rib, and each valve opens and closes each through hole while each valve rotates based on the notch groove. 7. An air extractor grill for a vehicle, comprising: a housing fixedly mounted at a portion on the vehicle separating inside and outside spaces of the vehicle and provided with through holes having with a plurality of grills;an outer cover coupled with a surface of an outside of the housing and having an opened inner space provided with a plurality of outer barrier ribs;an inner cover coupled with a surface of the inside of the housing and having an opened inner space provided with a plurality of inner barrier ribs; anda plurality of valves including upper portions fitted between the housing and the outer cover to be closely disposed to the housing to seal the through holes when the outer cover is connected with the housing, the plurality of valves being operated to open the through holes while lower portions of the plurality of valves rotate toward the outer cover based on the fixed upper portions when air inside the vehicle needs to be discharged to the outside of the vehicle,wherein an upper portion of each valve of the plurality of valves is provided with a plurality of valve holes which are spaced apart from each other in left and right directions of the each valve,wherein each of the valve holes is penetrated and inserted with housing protrusions formed in the housing and cover protrusions formed in the outer cover,wherein each of the housing protrusions and each of the cover protrusions penetrate through each of the valve holes in an opposite direction to each other, andwherein ends of the housing protrusions penetrating through the valve holes and ends of the cover protrusions are each inserted into protruding holes which are formed in the outer cover and the housing. 8. The air extractor grill for a vehicle of claim 7, wherein each outer barrier rib of the plurality of outer barrier ribs are vertically spaced apart from each other in the outer cover and air passages facing the valves are disposed between the outer barrier ribs or between the outer barrier ribs and the outer cover. 9. The air extractor grill for a vehicle of claim 7, wherein each inner barrier rib of the plurality of inner barrier ribs are vertically spaced apart from each other in the inner cover, and air passages facing the valves are disposed between the inner barrier ribs or between the inner barrier ribs and the inner cover. 10. The air extractor grill for a vehicle of claim 7, wherein each outer barrier rib of the plurality of barrier ribs includes: a horizontal part extending in a direction in which the outer cover is coupled to the housing;an upward bent part bent upward from an end of the horizontal part; anda downward bent part bent downward from another end of the horizontal part, wherein the each outer barrier rib is formed so that at least both side portions of the each outer barrier rib are connected to an inner surface of the outer cover. 11. The air extractor grill for a vehicle of claim 10, wherein each inner barrier rib of the plurality of inner barrier ribs includes: a horizontal part extending in a direction in which the inner cover is coupled with the housing;an upward bent part bent upward from an end of the horizontal part; anda downward bent part bent downward from another end of the horizontal part, wherein the each inner barrier rib is formed so that at least both side portions of the each inner barrier are connected to an inner surface of the inner cover. 12. The air extractor grill for a vehicle of claim 11, wherein an end of the downward bent part of the each inner barrier rib is disposed between an end of the downward bent part of an outer barrier rib disposed at a top portion and an end of the upward bent part disposed at a bottom portion in the outer barrier ribs which are vertically disposed to be adjacent to each other. 13. The air extractor grill for a vehicle of claim 7, wherein the housing protrusions and the cover protrusions alternately penetrate through the valve holes in left and right directions of the valve one by one. 14. The air extractor grill for a vehicle of claim 7, wherein the upward bent part is integrally provided with a support rib which protrudes toward the grill, a tip of the support rib is provided with the cover protrusions and the protruding holes, and when an end of each housing protrusion and an end of each cover protrusion penetrate through each corresponding valve hole and then are each inserted into corresponding protruding holes formed in the outer cover and the housing, both surfaces of the upper portion of the valve adhere to the tip of the support rib and a portion at which the grill is formed in the housing, respectively. 15. The air extractor grill for a vehicle of claim 14, wherein a notch groove extending in a straight line up to left and right sides of the each valve is formed under the valve holes at one surface of the each valve which directs to the outer cover, the notch groove is disposed under the support rib to prevent contact with the tip of the support rib, and each valve opens and closes each through hole while the each valve rotates based on the notch groove.