Height-adjustable desk with a single motor and extending cross beam

Abstract

A height-adjustable desk with a single motor and extending cross beam, comprises a desktop board, hollow tube components and a single motor; the hollow tube components and the single motor are provided below the desktop board, ends of the hollow tube components are connected with hexagonal screws; one end of the hexagonal screws is connected with the single motor, and the other end of the hexagonal screws is connected with a drive gear; retaining mechanisms with threaded sleeves are provided at both ends of the hollow tube components. The invention controls the motor to rotate through power, to drive the hexagonal screws and gears inside the supporting legs on both sides through the hexagonal screws, driving threaded lifting rods and realizing electric height adjustment. The unlocking of hollow tube components and hexagonal screws realize the supporting legs to move inwardly or outwards, controlling the desktop board's length.

1 . A height-adjustable desk with a single motor and extending cross beam, wherein comprises a desktop board ( 3 ), a hollow tube component ( 9 ), and a single motor ( 13 ); both the hollow tube component ( 9 ) and the single motor ( 13 ) are provided underneath the desktop board ( 3 ); the two ends of the hollow tube component ( 9 ) are connected to a hexagonal screw ( 7 ) via a hexagonal thread connector ( 22 ); one end of the hexagonal screw ( 7 ) is connected to the single motor ( 13 ), while the other end of the screw ( 7 ) is connected to a drive gear ( 14 ); the drive gear ( 14 ) is engaged and connected with a driven gear ( 15 ) for transmission, and a threaded lifting rod ( 17 ) is provided at the center of the surface of the driven gear ( 15 );retaining mechanisms ( 8 ) are provided at both ends of the hollow tube components ( 9 ), threaded sleeves ( 21 ) are provided on the retaining mechanisms ( 8 ), and the threaded sleeves ( 21 ) are screwed and fixed to threaded joints ( 20 ) at both ends of the hollow tube components ( 9 ) through internal threads. 
     
     
         2 . The height-adjustable desk with a single motor and extending cross beam as claimed in  claim 1 , wherein supporting legs ( 5 ) are provided at both ends of the bottom of the desktop board ( 3 ), and each of the supporting legs ( 5 ) has a hollow groove inside; the drive gear ( 14 ), the driven gear ( 15 ), and the threaded lifting rod ( 17 ) are all provided within the hollow groove, and a screw fixer ( 16 ) is provided on the threaded lifting rod ( 17 ). 
     
     
         3 . The height-adjustable desk with a single motor and extending cross beam as claimed in  claim 1 , wherein the bottom end of the desktop board ( 3 ) is respectively provided with a first desktop support bracket ( 2 ) and a second desktop support bracket ( 11 ); the first desktop support bracket ( 2 ) and the second desktop support bracket ( 11 ) are vertically distributed in a crossed manner, and the first desktop support bracket ( 2 ) and the second desktop support bracket ( 11 ) are connected by a retaining fixation screw ( 10 ); both ends of the second desktop support bracket ( 11 ) are fixedly connected with hollow groove tubes ( 12 ) through insertion holes. 
     
     
         4 . The height-adjustable desk with a single motor and extending cross beam as claimed in  claim 1 , wherein a single motor controller ( 1 ) is provided on the bottom surface of the desktop board ( 3 ), the single motor controller ( 1 ) is respectively provided with a gear control knob and a lifting control knob, and the single motor controller ( 1 ) is electrically connected with the single motor ( 13 ). 
     
     
         5 . The height-adjustable desk with a single motor and extending cross beam as claimed in  claim 1 , wherein both sides of the bottom end of the desktop board ( 3 ) are fixedly connected with desktop support frames ( 4 ) through screws, and the surface of the desktop support frame ( 4 ) is provided with hook slot holes ( 18 ); hook main bodies ( 19 ) are provided inside the hook slot holes ( 18 ), and the hook main bodies ( 19 ) and the desktop support frames ( 4 ) are detachably structured. 
     
     
         6 . The height-adjustable desk with a single motor and extending cross beam as claimed in  claim 1 , wherein fixed bases ( 6 ) are provided at the lower end of the supporting legs ( 5 ), and the supporting legs ( 5 ) are fixedly connected with the fixed bases ( 6 ) through screws.