Telescopic display stand

Abstract

A telescopic display stand includes a base and a fixed tube secured on the base. At least one tube is telescopically received in the fixed tube. A sleeve is rotatably received in the first tube and has an axle mounted at a bottom of the sleeve. At least one threaded rod is threadingly received in the sleeve and has a top end fastened at a top end of the at least one tube. A drive unit is mounted in the base and connected to the axle. An effigy sheath is mountable over the tube. Whereby, the display stand can be automatically erected for use and retracted for storage.

1 . A telescopic display stand comprising: 
 a base ( 10 ) having a fixed tube ( 30 ) secured on the base ( 10 ), and at least one tube telescopically received in the fixed tube ( 30 );    a sleeve ( 73 ) rotatably received in the at least one tube and having an axle ( 21 ) mounted at a bottom of the sleeve ( 73 ); and at least one threaded rod threadingly received in the sleeve ( 73 ) and having a top end fastened at a top end of the at least one tube ; and    a drive unit ( 20 ) mounted in the base ( 10 ) and connected to the axle ( 21 ).    
   
   
       2 . The telescopic display stand as claimed in  claim 1  comprising a first telescopic tube ( 40 ), a second telescopic tube ( 50 ), and a third telescopic tube ( 60 ) in turn received in the fixed tube ( 30 ); and a first threaded rod ( 70 ), a second threaded rod ( 71 ), and a third threaded rod ( 72 ) in turn telescopically received in the sleeve ( 73 ).  
   
   
       3 . The telescopic display stand as claimed in  claim 2 , wherein the fixed tube ( 30 ) has a first upper rim ( 31 ) with a first hole ( 311 ) formed at a top end of the fixed tube ( 30 ) for receiving the first telescopic tube ( 40 ), the first telescopic tube ( 40 ) has a second upper rim ( 41 ) with a second hole ( 411 ) formed at a top end of the first telescopic tube ( 40 ) for receiving the second telescopic tube ( 50 ), the second telescopic tube ( 50 ) has a third upper rim ( 51 ) with a third hole ( 511 ) formed at a top end of the second telescopic tube ( 50 ) for receiving the third telescopic tube ( 60 ), and the third telescopic tube ( 60 ) has a fourth upper rim ( 61 ) with a fourth hole ( 611 ) formed at a top end of the third telescopic tube ( 60 ) for fastening a top end of the first threaded rod ( 70 ) in the fourth upper rim ( 61 ).  
   
   
       4 . The telescopic display stand as claimed in  claim 3 , wherein the second threaded rod ( 71 ) has a first stopping flange ( 711 ) with a first threaded hole ( 712 ) formed at a top end of the second threaded rod ( 71 ), the first threaded rod ( 70 ) is threadingly engaged in the first threaded hole ( 712 ) and has a first nut ( 702 ) provided at a bottom end of the first threaded rod ( 70 ) and received in the second threaded rod ( 71 ); 
 the third threaded rod ( 72 ) has a second stopping flange ( 721 ) with a second threaded hole ( 722 ) formed at a top end of the third threaded rod ( 72 ), the second threaded rod ( 71 ) is threadingly engaged in the second threaded hole ( 722 ) and has a second nut ( 713 ) provided at a bottom end of the second threaded rod ( 71 ) and received in the third threaded rod ( 72 ); and    the sleeve ( 73 ) has an inner flange ( 731 ) with a third threaded hole ( 732 ) formed at a top end of the sleeve ( 73 ), the third threaded rod ( 72 ) is threadingly engaged in the third threaded hole ( 732 ) and has a third nut ( 723 ) provided at a bottom end of the third threaded rod ( 72 ) and received in the sleeve ( 73 ).    
   
   
       5 . The telescopic display stand as claimed in  claim 3 , wherein the tubes ( 40 ,  50 ,  60 ) each have at least one rib ( 43 ,  53 ,  63 ) formed at the respective outer periphery, and the cross sections of the tubes ( 40 ,  50 ,  60 ) are respectively corresponding to those of the holes ( 411 ,  511 ,  611 ).  
   
   
       6 . The telescopic display stand as claimed in  claim 3 , wherein the tubes ( 40 ,  50 ,  60 ) each have a lower rim ( 42 ,  52 ,  62 ) formed at bottom ends of the tubes.  
   
   
       7 . The telescopic display stand as claimed in  claim 1 , wherein the drive unit ( 20 ) has a motor ( 26 ) mounted on the base ( 10 ), a first belt pulley ( 27 ) mounted on an output axle of the motor ( 26 ), a shaft ( 23 ) rotatably mounted in the base ( 10 ), a second belt pulley ( 25 ) mounted on the shaft ( 23 ) and connected to the first belt pulley ( 27 ) by a belt ( 271 ), a first gear ( 24 ) mounted on the shaft ( 23 ), and a second gear ( 22 ) engaged with the first gear ( 24 ) and mounted on the axle ( 21 ).  
   
   
       8 . The telescopic display stand as claimed in  claim 1 , wherein the drive unit ( 20 A) has a motor ( 26 ) mounted on the base ( 10 ), a first belt pulley ( 27 ) mounted on an output axle of the motor ( 26 ), and a second belt pulley ( 28 ) mounted on the axle ( 21 ) and connected to the first belt pulley ( 27 ) by a belt ( 29 ).