Fan blade installing structure and ceiling fan

Abstract

A fan blade installing structure has a fixing base and a fan blade. The fixing base has a first engaged slot. The first engaged slot has an installing gap and a side gap. An end of the side gap connects to the installing gap. The first engaged slot has a first engaged unit on a side of the side gap. The first engaged unit is aligned with the installing gap. The fan blade has a second engaged unit. One of the first engaged unit and the second engaged unit has an engaged protrusion, and the other one of the first engaged unit and the second engaged unit has a second engaged slot. The second engaged unit moves into the side gap from the installing gap, and the engaged protrusion is limited in the second engaged slot, thereby limiting the fan blade in the first engaged slot.

What is claimed is: 
     
         1 . A fan blade installing structure comprising: 
 a fixing base comprising: 
 a first engaged slot comprising: 
 an installing gap formed on a surface of the fixing base; 
 a side gap formed on another surface of the fixing base; an end of the side gap connecting with the installing gap, and another end of the side gap extending away from the installing gap; and 
 a first engaged unit mounted on a side of the side gap; the first engaged unit aligned with the installing gap; and 
 a fan blade mounted on the fixing base and comprising a second engaged unit; 
 
 wherein either one of the first engaged unit and the second engaged unit comprises an engaged protrusion, and the other one of the first engaged unit and the second engaged unit comprises a second engaged slot; when the second engaged unit moves into the side gap from the installing gap, the engaged protrusion moves relatively to the second engaged slot and is engaged in the second engaged slot, such that the fan blade is engaged in the first engaged slot. 
   
     
     
         2 . The fan blade installing structure as claimed in  claim 1 , wherein: 
 the fan blade comprises a blade part and a board part;   either one of the fixing base and the board part comprises at least one convex part, and the other one of the fixing base and the board part comprises at least one concave part;   the board part abuts the fixing base, and the at least one convex part is engaged with the at least one concave part, limiting the fan blade to the fixing base.   
     
     
         3 . The fan blade installing structure as claimed in  claim 2 , wherein: 
 the fixing base comprises a first fixing hole;   the board part of the fan blade comprises a second fixing hole; and   the fan blade installing structure comprises a fixing unit; the fixing unit is mounted through the second fixing hole and is fixed in the first fixing hole.   
     
     
         4 . The fan blade installing structure as claimed in  claim 3 , wherein the fixing unit is a screw; the fixing unit passes through the second fixing hole and is screwed with the first fixing hole. 
     
     
         5 . The fan blade installing structure as claimed in  claim 3 , wherein: 
 the fixing base comprises a first limiting slot from a top surface of the fixing base to a side surface of the fixing base; the first engaged slot is formed in the first limiting slot;   the at least one concave part or the at least one convex part is formed in the first limiting slot; the first fixing hole is formed in the first limiting slot;   the blade part is installed in the first limiting slot and covers the side gap on the side surface of the fixing base;   the board part is installed in the first limiting slot and covers the installing gap on the top surface of the fixing base.   
     
     
         6 . The fan blade installing structure as claimed in  claim 4 , wherein: 
 the fixing base comprises a first limiting slot from a top surface of the fixing base to a side surface of the fixing base; the first engaged slot is formed in the first limiting slot;   the at least one concave part or the at least one convex part is formed in the first limiting slot; the first fixing hole is formed in the first limiting slot;   the blade part is installed in the first limiting slot and covers the side gap on the side surface of the fixing base;   the board part is installed in the first limiting slot and covers the installing gap on the top surface of the fixing base.   
     
     
         7 . The fan blade installing structure as claimed in  claim 1 , wherein the second engaged unit comprises an engaged hook; at a movement end of a movement of the engaged protrusion and the second engaged slot, the engaged hook is engaged with the first engaged unit. 
     
     
         8 . The fan blade installing structure as claimed in  claim 6 , wherein the second engaged unit comprises an engaged hook; at a movement end of a movement of the engaged protrusion and the second engaged slot, the engaged hook is engaged with the first engaged unit. 
     
     
         9 . The fan blade installing structure as claimed in  claim 7 , wherein the second engaged slot is on the second engaged unit, and the second engaged slot is further on the engaged hook; the engaged protrusion is on the first engaged unit; the engaged protrusion comprises a compressible part, and the compressible part is adjustable; the engaged hook is hooked on the compressible part. 
     
     
         10 . The fan blade installing structure as claimed in  claim 8 , wherein the second engaged slot is on the second engaged unit, and the second engaged slot is further on the engaged hook; the engaged protrusion is on the first engaged unit; the engaged protrusion comprises a compressible part, and the compressible part is adjustable; the engaged hook is hooked on the compressible part. 
     
     
         11 . The fan blade installing structure as claimed in  claim 7 , wherein: 
 the compressible part is located on an end of the engaged protrusion;   a compressed space is formed between the compressible part and a wall of the fixing base; the compressible part is capable of being adjusted through the compressed space.   
     
     
         12 . The fan blade installing structure as claimed in  claim 10 , wherein: 
 the compressible part is located on an end of the engaged protrusion;   a compressed space is formed between the compressible part and a wall of the fixing base; the compressible part is capable of being adjusted through the compressed space.   
     
     
         13 . The fan blade installing structure as claimed in  claim 1 , wherein: 
 the fan blade comprises a blade part and a board part; an end of the second engaged unit is connected to a bottom surface of the blade part, and another end of the second engaged unit is connected to the board part;   the second engaged slot is on the second engaged unit; an inner diameter of the second engaged slot gradually increases in a direction away from the board part, such that a second engaged slope is formed on an inner wall of the second engaged slot;   the engaged protrusion is on the first engaged unit;   a first engaged slope is formed on an outer side of the engaged protrusion and is parallel to the second engaged slope; the first engaged slope and a surface adjacent to the first engaged slope are respectively attached to the inner wall of the second engaged slot.   
     
     
         14 . The fan blade installing structure as claimed in  claim 12 , wherein: 
 an end of the second engaged unit is connected to a bottom surface of the blade part, and another end of the second engaged unit is connected to the board part;   the second engaged slot is on the second engaged unit; an inner diameter of the second engaged slot gradually increases in a direction away from the board part, such that a second engaged slope is formed by an inner wall of the second engaged slot;   the engaged protrusion is on the first engaged unit;   a first engaged slope is formed on an outside of the engaged protrusion and is parallel to the second engaged slope; the first engaged slope and a surface adjacent to the first engaged slope are respectively attached to the inner wall of the second engaged slot.   
     
     
         15 . A ceiling fan comprising at least one fan blade installing structure as claimed in  claim 1 . 
     
     
         16 . A ceiling fan comprising at least one fan blade installing structure as claimed in  claim 14 .