Air purifier and installing method thereof

Abstract

An air purifier is provided. The air purifier includes a first air purification module including a coupling body, a second air purification module arranged on top of the first air purification module and including a coupling plate, a holder configured to be coupled to the coupling body and arranged between the first air purification module and the second air purification module, and a rotation member configured to be coupled to the coupling plate and arranged between the holder and the first air purification module, wherein the second air purification module coupled to the rotation member is rotated with respect to the first air purification module coupled to the holder.

What is claimed is: 
     
         1 . An air purifier comprising:
 a first air purification module including a coupling body;   a second air purification module arranged on top of the first air purification module and including a coupling plate;   a holder configured to be coupled with the coupling body and arranged between the first air purification module and the second air purification module; and   a rotation member configured to be coupled with the coupling plate and arranged between the holder and the first air purification module,   wherein the second air purification module coupled with the rotation member is able to rotate against the first air purification module coupled with the holder.   
     
     
         2 . The air purifier of  claim 1 ,
 wherein the rotation member comprises a rotation body including an opening at a center, and   wherein the holder comprises a connection hole connected to the opening, and a holder body enclosing the connection hole and covering a top of the rotation body.   
     
     
         3 . The air purifier of  claim 2 ,
 wherein the rotation member comprises a first circumferential projection protruded upward from the rotation body and extended along circular edges and a second circumferential projection spaced from the first circumferential projection, and   wherein the holder comprises a circumferential guider protruded downward from the holder to be inserted between the first circumferential projection and the second circumferential projection.   
     
     
         4 . The air purifier of  claim 1 ,
 wherein the rotation member comprises:
 a rotation body including an opening formed in a circular shape at a center and circular edges enclosing the opening, and 
 a rotation projection protruded inward from the rotation body in a radial direction, and 
   wherein the coupling body comprises:
 a base wall extended in a circumferential direction to include circular edges to support a lower portion of the rotation projection, 
 a guide wall guiding an inner side end of the rotation projection, protruded upward from the base wall and extended in the circumferential direction, and 
 a stopper protruded outward from the guide wall in the radial direction to interfere with the rotation projection. 
   
     
     
         5 . The air purifier of  claim 1 ,
 wherein the rotation member comprises:
 a rotation body including an opening at a center and having a circular shape, and 
 a guide blade extended outward from the rotation body in a radial direction, and 
   wherein the coupling plate comprises:
 an upper hole connected to the opening, and 
 a guide groove recessed upward to allow the guide blade to be inserted thereto, and extended toward edges of the coupling plate from the upper hole. 
   
     
     
         6 . The air purifier of  claim 5 , wherein the guide blade is able to rotate between a first position and a second position within the guide groove. 
     
     
         7 . The air purifier of  claim 6 , wherein the guide groove comprises:
 a first inner wall extended from the upper hole toward edges of the coupling plate to support one side end of the guide blade in response to the guide blade being placed in the first position; and   a second inner wall extended from the upper hole toward edges of the coupling plate to support the other side end of the guide blade in response to the guide blade being placed in the second position.   
     
     
         8 . The air purifier of  claim 6 ,
 wherein the coupling plate comprises a fastener which forms a fastening hole arranged to be coupled with the rotation member, and   wherein the rotation member comprises:
 a boss portion arranged to match the fastener in response to the guide blade being arranged in the second position, and 
 a coupling blade protruded outward from the rotation body in the radial direction. 
   
     
     
         9 . The air purifier of  claim 8 ,
 wherein the coupling plate comprises a coupling blade groove recessed upward to allow the coupling blade to be inserted thereto and extended in a circumferential direction, and   wherein the coupling blade is able to rotate between an additional first position where the coupling blade is placed as the guide blade is placed in the first position and an additional second position where the coupling blade is placed as the guide blade is placed in the second position within the coupling blade groove.   
     
     
         10 . The air purifier of  claim 9 , wherein the coupling blade groove comprises:
 a first support wall supporting one side end of the coupling blade in response to the coupling blade being placed in the additional first position, and   a second support wall supporting the other side end of the coupling blade in response to the coupling blade being placed in the additional second position.   
     
     
         11 . The air purifier of  claim 10 , wherein the coupling plate further comprises a support plate extended from the second support wall toward the first support wall to support a lower portion of the coupling blade placed in the additional second position. 
     
     
         12 . The air purifier of  claim 6 ,
 wherein the coupling plate further comprises:
 a circumferential inner wall extended in a circumferential direction to enclose the upper hole, and 
 an insertion projection protruded inward from the circumferential inner wall in the radial direction, and 
   wherein the rotation member comprises an insertion groove extended in the circumferential direction to allow the insertion projection to be inserted thereto.   
     
     
         13 . The air purifier of  claim 12 ,
 wherein the insertion projection is able to rotate from an additional first position where the insertion projection is placed as the guide blade is placed in the first position to an additional second position where the insertion projection is placed as the guide blade is placed in the second position within the insertion groove, and   wherein the insertion projection located in the additional second position is fixed in a position.   
     
     
         14 . The air purifier of  claim 13 ,
 wherein the insertion projection comprises a top surface and a fixing groove recessed downward from the top surface, and   wherein the rotation member comprises a cover arranged to cover an upper portion of the insertion projection located in the additional second position, and a fixing projection protruded downward from the cover to match the fixing groove.   
     
     
         15 . The air purifier of  claim 13 ,
 wherein the insertion projection comprises a top surface and a fixing projection protruded upward from the top surface, and   wherein the rotation member comprises:
 a cover arranged to cover an upper portion of the insertion projection located in the additional second position, and 
 a fixing groove recessed upward from the cover to match the fixing projection.