Airflow apparatus

Abstract

An airflow apparatus includes an air tunnel, a fan motor, a fan blade, a box housing and a slider lock. The fan blade is driven by the fan motor for moving air moving in the air tunnel. The box housing encloses the fan motor, the fan motor and the fan blade. The slider lock is attached to the box housing. The slider lock has a slider part movable from a first position to a second position. When the box housing is placed upon the bracket in a first installation mode, the slider part is moved from the first position to the second position, a fastener of the slider lock is operated to engage the bracket for fastening the box housing to the bracket.

1 . An airflow apparatus, comprising:
 an air tunnel;   a fan motor;   a fan blade driven by the fan motor for moving air moving in the air tunnel;   a box housing enclosing the fan motor, the fan motor and the fan blade; and   a slider lock, wherein the slider lock is attached to the box housing, wherein slider lock has a slider part movable from a first position to a second position, wherein when the box housing is placed upon the bracket in a first installation mode, the slider part is moved from the first position to the second position, a fastener of the slider lock is operated to engage the bracket for fastening the box housing to the bracket, wherein to release the box housing from the bracket, the fastener of the slider lock is operated to be unfastened so that the slider part is movable from the second position back to the first position to leave the bracket.   
     
     
         2 . The airflow apparatus of  claim 1 , wherein the fastener is a screw, wherein the screw is rotated to fasten the box housing to the bracket. 
     
     
         3 . The airflow apparatus of  claim 2 , wherein when the box housing is placed upon the bracket, a gravity force drags the box housing downwardly, wherein when the screw rotated to move upwardly to engage the bracket, an upward force is applied to the screw upwardly to increase friction between the screw and the bracket. 
     
     
         4 . The airflow apparatus of  claim 2 , wherein the slider lock has a base part to move in a sliding track on a lateral wall of the box housing, wherein the base part and the sliding part are formed as two parts by bending a single plate. 
     
     
         5 . The airflow apparatus of  claim 4 , wherein an auxiliary fastener is disposed on the base part to be operated to fasten the slider lock to the lateral wall. 
     
     
         6 . The airflow apparatus of  claim 1 , further comprising two expandable side units, wherein the two expandable side units are attached to a lateral side of the box housing, wherein the expandable side units have extending portions extending respectively from two opposite peripheral edges of the box housing, wherein there is an ear hole for each expandable side unit for inserting a fixing hook placed on an installation wall surface in a second installation mode. 
     
     
         7 . The airflow apparatus of  claim 6 , wherein the expandable side unit comprises a geometry plate, wherein the ear hole is disposed on the geometry plate. 
     
     
         8 . The airflow apparatus of  claim 7 , wherein the expandable side unit is detached from the box housing in the first installation mode. 
     
     
         9 . The airflow apparatus of  claim 7 , wherein the expandable side unit is pushed and collapsed in a storage area of the box housing in the first installation mode, wherein the expandable side unit is pulled to extend in the second installation mode. 
     
     
         10 . The airflow apparatus of  claim 7 , wherein the expandable side unit is rotated to extend in the second installation mode, wherein the expandable side unit is rotated to collapsed in a storage area of the box housing in the first installation mode. 
     
     
         11 . The airflow apparatus of  claim 10 , wherein the expandable side unit is fixed to the box housing with a rotation axle. 
     
     
         12 . The airflow apparatus of  claim 1 , wherein a first air vent of the box housing faces downwardly to the bracket. 
     
     
         13 . The airflow apparatus of  claim 12 , wherein a second air vent of the box housing is disposed to another lateral side, wherein the air tunnel connects the first air vent to the second air vent. 
     
     
         14 . The airflow apparatus of  claim 1 , further comprising an ultraviolet light source for sterilization, wherein the ultraviolet light source is placed in the air tunnel and concealed by the box housing. 
     
     
         15 . The airflow apparatus of  claim 14 , further comprising a illumination light source, wherein the illumination light source emit light escaping from the first air vent. 
     
     
         16 . The airflow apparatus of  claim 15 , wherein the box housing has a light bracket for attaching the illumination light source, wherein the first air vent is a gap aside the light bracket. 
     
     
         17 . The airflow apparatus of  claim 16 , wherein the illumination light source is detachable from the light bracket. 
     
     
         18 . The airflow apparatus of  claim 1 , further comprising the bracket, wherein the expandable track has a track part and a bar part, where the bar part is retracted partly in the track part to change a length of the expandable track. 
     
     
         19 . The airflow apparatus of  claim 18 , wherein the track parts of the two extendable tracks are connected to opposite sides of the bracket. 
     
     
         20 . The airflow apparatus of  claim 18 , wherein the bracket further has two side bars for connecting the two extendable tracks forming a rectangular shape, wherein the two side bars are fixed on two opposite walls.