Electric height-adjustable desk

Abstract

An electric height-adjustable desk is provided which comprises a desk board body comprising a desk board, and a frame disposed at the bottom of the desk board, and the desk board and the frame are connected to integrally form the desk board body; a lifting assembly, connected to the bottom of the desk board body, and comprising a transmission rod, two lifting columns and one drive motor, wherein the drive motor is in transmission connection with the two lifting columns through the transmission rod to drive the two lifting columns to ascend and descend; the transmission rod, the two lifting columns and the drive motor are connected to integrally form the lifting assembly; a base, connected to lower ends of the two lifting columns; a groove for embedding the transmission rod is disposed at the bottom of the frame of the desk board body; a manual controller and a human-machine interaction interface of the manual controller is disposed at an outer side wall of the desk board body. The electric height-adjustable desk provided makes the space under the desk board increased to allow users to place legs freely and help users to avoid touching the desk, while being simple in structure and fast in assembly, the manual controller is not easy to be accidentally touched by users to ensure high safety.

1 . An electric height-adjustable desk, wherein it comprises:
 a desk board body, comprising a desk board, and a frame disposed at the bottom of the desk board, and the desk board and the frame are connected to integrally form the desk board body;   a lifting assembly, connected to the bottom of the desk board body, and comprising a transmission rod, two lifting columns and one drive motor, and the drive motor is in transmission connection with the two lifting columns through the transmission rod to drive the two lifting columns to ascend and descend; the transmission rod, the two lifting columns and the drive motor are connected to integrally form the lifting assembly;   a base, connected to lower ends of the two lifting columns; and   a groove for embedding the transmission rod is disposed at the bottom of the frame of the desk board body; when the lifting assembly is connected to the bottom of the desk board body, the transmission rod is located in the grooves.   
     
     
         2 . The electric height-adjustable desk of  claim 1 , wherein a cross beam is disposed between the two lifting columns, both ends of the cross beam are fixedly connected with upper ends of the two lifting columns respectively, the cross beam is disposed in the grooves of the frame and the transmission rod is disposed in the cross beam. 
     
     
         3 . The electric height-adjustable desk of  claim 2 , wherein a bottom surface of the cross beam is flushed with a bottom surface of the frame. 
     
     
         4 . The electric height-adjustable desk of  claim 1 , wherein a mounting groove is disposed at a side wall of a side of the desk board body close to the user, a drawer is slidably connected in the mounting groove, and the bottom of the drawer is flushed with the bottom of the desk board body. 
     
     
         5 . The electric height-adjustable desk of  claim 4 , wherein the desk board is a glass desk board, the frame is a metal frame, the desk board is fixedly connected to the top of the frame, and a top wall of the drawer is provided with an elastic pad which is elastically abutted against the bottom of the desk board. 
     
     
         6 . The electric height-adjustable desk of  claim 1 , wherein the frame comprises an outer frame and a cross bar connected within the outer frame, and the groove is disposed on the cross bar and penetrated through the bottom of the cross bar. 
     
     
         7 . The electric height-adjustable desk of  claim 6 , wherein a connection rod perpendicular to the cross bar is connected within the outer frame; a connection plate is fixedly connected on the upper end of each lifting column, and the connection plate has a first connection portion fixedly connected with the connection rod and a second connection portion fixedly connected with the bottom of the outer frame; a distance from a side wall of the desk board body close to the user to the connection rod is greater than a distance from a side wall of the desk board body away from the user to the connection rod. 
     
     
         8 . The electric height-adjustable desk of  claim 1 , wherein a pull rod is disposed between the two lifting columns, and both ends of the pull rod are fixedly connected to lower ends of the two lifting columns respectively. 
     
     
         9 . The electric height-adjustable desk of  claim 1 , wherein the electric height-adjustable desk further comprises a controlling unit, the controlling unit comprises a controller and a manual controller, and the controller is in electrical connection with the drive motor and the manual controller; a human-machine interaction interface of the manual controller is disposed at an outer side wall of the desk board body. 
     
     
         10 . The electric height-adjustable desk of  claim 9 , wherein a gap is disposed at an outer side wall of the frame, the manual controller is connected in the gap, and the human-machine interaction interface of the manual controller is in smooth transition with an outer side surface of the frame. 
     
     
         11 . The electric height-adjustable desk of  claim 10 , wherein the gap is disposed at an end of the outer side wall of a side of the frame close to the user. 
     
     
         12 . The electric height-adjustable desk of  claim 11 , wherein the bottom of the manual controller is flushed with the bottom of the frame, and a plane where the human-machine interaction interface of the manual controller is located is flushed with a plane where the outer side wall of the side of the frame close to the user. 
     
     
         13 . The electric height-adjustable desk of  claim 9 , wherein the controller is in electrical connection with the drive motor to control the drive motor to run; a USB charge interface is disposed at the outer side wall of the desk board body, and the USB charge interface is in electrical connection with a circuit of the controller. 
     
     
         14 . The electric height-adjustable desk of  claim 9 , wherein a luminous body is connected on at least one outer side wall of the desk board body, and the luminous body is in electrical connection with the controller so as to be powered to illuminate when the controller controls the drive motor to run. 
     
     
         15 . The electric height-adjustable desk of  claim 14 , wherein the luminous body is an LED lamp strip, the luminous body is disposed at a left side wall and a right side wall of the desk board body and a rear side wall of a side of the desk board body away from the user, and both ends of the luminous body both extend to a front side wall of a side of the desk board body close to the user. 
     
     
         16 . The electric height-adjustable desk of  claim 15 , wherein the luminous body is connected between the desk board and the frame.