Lift desk

Abstract

Provided is a lift desk. The lift desk includes a support base, a first desk board, a second desk board and an adjustment support assembly, where the first desk board is connected to the support base by a lift mechanism; the second desk board is connected to the first desk board and positioned between the support base and the first desk board, and the second desk board is provided with a groove at a side of the second desk board facing towards the first desk board. The adjustment support assembly includes a support block. The support block is slidably disposed in the groove and configured to cooperate with the second desk board to support a supported object.

What is claimed is: 
     
         1 . A lift desk, comprising:
 a support base;   a first desk board connected to the support base by a lift mechanism;   a second desk board connected to the first desk board and positioned between the support base and the first desk board, the second desk board being provided with a groove at a side of the second desk board facing towards the first desk board; and   an adjustment support assembly comprising a support block, the support block being slidably disposed in the groove and configured to cooperate with the second desk board to support a supported object.   
     
     
         2 . The lift desk according to  claim 1 , wherein the adjustment support assembly further comprises a slide rail, wherein the slide rail is embedded in the groove and provided with a slide groove, and the support block is slidably disposed in the slide groove. 
     
     
         3 . The lift desk according to  claim 2 , wherein a groove wall of the slide groove is provided with a limiting ridge projecting towards the slide groove, wherein the limiting ridge extends in a same direction as the slide groove, a notch is provided on a side of the support block, and the notch is slidably sleeved on the limiting ridge. 
     
     
         4 . The lift desk according to  claim 3 , wherein an end of the support block is in contact with the slide rail, and a round corner is provided at a side of the end facing away from the notch. 
     
     
         5 . The lift desk according to  claim 1 , wherein the lift mechanism comprises a linkage assembly and a drive member, the linkage assembly is disposed between the support base and the first desk board, and the drive member is configured to drive the linkage assembly to rotate so as to adjust a distance between the first desk board and the support base. 
     
     
         6 . The lift desk according to  claim 5 , wherein the linkage assembly comprises:
 two drive rods parallel to and spaced apart from each other, wherein each of the two drive rods comprises a first end and a second end, first ends of the two drive rods are rotatably connected to two opposite sides of the first desk board respectively, second ends of the two drive rods are rotatably connected to two opposite sides of the support base respectively, and the two drive rods are connected to an output end of the drive member by a synchronizing member; and   two driven rods parallel to and spaced apart from each other, wherein each of the two driven rods comprises a first end and a second end, first ends of the two driven rods are rotatably connected to the two opposite sides of the first desk board respectively, and second ends of the two driven rods are rotatably connected to the two opposite sides of the support base respectively.   
     
     
         7 . The lift desk according to  claim 1 , wherein the first desk board and the second desk board are parallel to each other, and along a direction parallel to a board surface of the first desk board, a part of the second desk board projects out of the first desk board. 
     
     
         8 . The lift desk according to  claim 7 , wherein support board regions extend from two sides of an end of the second desk board projecting out of the first desk board respectively. 
     
     
         9 . The lift desk according to  claim 7 , wherein an edge of the first desk board is provided with an escape groove extending through two opposite side board surfaces of the first desk board, a projection of the groove in a direction perpendicular to a board surface of the first desk board is located in the escape groove, and the support block is configured to cooperate with the escape groove and the second desk board to support the supported object. 
     
     
         10 . The lift desk according to  claim 9 , wherein the first desk board is provided with two connecting pieces, the second desk board is connected to the first desk board by the two connecting pieces, and the two connecting pieces are positioned at two opposite sides of the escape groove respectively. 
     
     
         11 . The lift desk according to  claim 2 , wherein the first desk board and the second desk board are parallel to each other, and along a direction parallel to a board surface of the first desk board, a part of the second desk board projects out of the first desk board. 
     
     
         12 . The lift desk according to  claim 3 , wherein the first desk board and the second desk board are parallel to each other, and along a direction parallel to a board surface of the first desk board, a part of the second desk board projects out of the first desk board. 
     
     
         13 . The lift desk according to  claim 4 , wherein the first desk board and the second desk board are parallel to each other, and along a direction parallel to a board surface of the first desk board, a part of the second desk board projects out of the first desk board. 
     
     
         14 . The lift desk according to  claim 5 , wherein the first desk board and the second desk board are parallel to each other, and along a direction parallel to a board surface of the first desk board, a part of the second desk board projects out of the first desk board. 
     
     
         15 . The lift desk according to  claim 6 , wherein the first desk board and the second desk board are parallel to each other, and along a direction parallel to a board surface of the first desk board, a part of the second desk board projects out of the first desk board.