Rotatable and shape-changeable christmas tree

Abstract

A rotatable and shape-changeable Christmas tree, wherein the trunk of the tree is pivotally installed on a base, and the trunk includes a plurality of straight pipes and a plurality of bent pipes being assembled to one another, on each of the straight pipes is arranged a bearing on which being mounted an annular support device, and between neighboring annular support devices are arranged a plurality of decorative leaves. During rotation of the trunk relative to the base, the annular support devices will be driven to rotate, and the decorative leaves will rotate along with the annular support devices and will appear to change in shape during the rotation of the annular support devices.

1 . A rotatable and shape-changeable Christmas tree comprising: 
 a base;    a trunk including a plurality of straight pipes and a plurality of bent pipes being connected to one another, and one of the straight pipes pivotally fixed to the base;    a plurality of bearings installed on the straight pipes of the trunk;    a plurality of annular support devices mounted on the bearings; and    a plurality of decorative leaves arranged between neighboring annular support devices.    
   
   
       2 . The rotatable and shape-changeable Christmas tree as claimed in  claim 1 , wherein a rotating device is disposed in the base and fixed to the straight pipe fixed on the base.  
   
   
       3 . The rotatable and shape-changeable Christmas tree as claimed in  claim 1 , wherein each end of the respective bent pipes of the trunk is an inserting portion to be inserted in an end of the respective straight pipes.  
   
   
       4 . The rotatable and shape-changeable Christmas tree as claimed in  claim 3 , wherein an aperture is formed in the inserting portion of each of the bent pipes, and in each of the straight pipes is formed an aperture to be aligned with the aperture of the bent pipes, the straight pipes and the bent pipes are assembled to one another by screwing a locking member into the aperture of the straight pipes and the aperture of the bent pipes.  
   
   
       5 . The rotatable and shape-changeable Christmas tree as claimed in  claim 1 , wherein the annular support devices each includes an inner ring, an outer ring and a plurality of ribs connected between the inner ring and the outer ring, and the inner ring is mounted on each of the bearings.  
   
   
       6 . The rotatable and shape-changeable Christmas tree as claimed in  claim 1 , wherein a tree-crown decorative assembly is installed on a top end of the trunk and includes a bracket, a positioning seat and a connecting member, the bracket is mounted on the bearings, the positioning seat is installed in the bracket, and the connecting member is inserted in the positioning member.  
   
   
       7 . The rotatable and shape-changeable Christmas tree as claimed in  claim 6 , wherein the bracket includes an upper ring, a lower ring, four ribs connected between the upper and lower rings, and a reinforcing rib connected between two opposite ribs, thus forming a conical bracket, the positioning seat is formed with an axial hole and defined with a locking groove for mating with the reinforcing rib of the bracket, the connecting member is inserted in the axial hole of the positioning seat, in an end of the connecting member is formed a groove for mating with the reinforcing rib of the bracket, and in the positioning seat is further defined a connecting hole, the connecting hole and the annular support devices are provided for positioning the decorative leaves.