Expandable folding table assembly with panels

Abstract

The present subject matter discloses an expandable folding table with a first panel, a second panel, and a movable insert panel. The first panel is supported by a first frame, and the second panel is supported by a second frame. The first frame is expandable and is attached to a sliding rail device, which includes a fixed frame connected with a pivot device and a movable frame slidably arranged on the fixed frame. When it is in use, the movable insert panel can be arranged between the first panel and the second panel to extend the expandable folding table. When it is collapsed, the movable insert panel can be hidden under the first panel. The expandable folding table is convenient as it is foldable and extendable. Furthermore, the first panel can always be supported by the movable frame to enhance its bearing strength.

What is claimed is: 
     
         1 . An expandable folding table, comprising:
 a first panel supported by a first frame;   a second panel configured to be coupled with the first panel, the second panel being supported by a second frame;   wherein the first frame and the second frame are connected by a pivot device and can be folded around a pivot shaft of the pivot device to achieve folding; and   wherein the first frame is expandable and is attached to a sliding rail device, which includes a fixed frame connected with the pivot device and a movable frame slidably arranged on the fixed frame,   wherein the first panel is connected to the movable frame through a fixed connection, and the first panel is configured to slide on the sliding rail device relative to the fixed frame; and   wherein a movable panel is attached to the fixed frame so that it can be horizontally arranged between the first panel and the second panel to extend the expandable folding table when it is in use, or can be hidden under the first panel when it is collapsed.   
     
     
         2 . The expandable folding table of  claim 1 , wherein the movable panel is rotatably connected to a middle beam of the fixed frame, and the movable panel is foldable with a first board and a second board that is connected to each other. 
     
     
         3 . The expandable folding table of  claim 2 , wherein the fixed frame includes a longitudinal front fixed beam and a longitudinal rear fixed beam, and a horizontal left fixed beam and a horizontal right fixed beam, wherein the longitudinal front fixed beam and the longitudinal rear fixed beam are respectively connected to the front and rear of the pivot device, wherein the horizontal right fixed beam is connected between the front and rear of the pivot device, wherein the movable frame includes a longitudinal front movable beam and a longitudinal rear movable beam, and the longitudinal front movable beam and the longitudinal rear movable beam are slidably arranged on the longitudinal front fixed beam and the longitudinal rear fixed beam, and wherein the middle beam is a longitudinal beam connected between the horizontal left fixed beam and the horizontal right fixed beam. 
     
     
         4 . The expandable folding table of  claim 3 , wherein the sliding rail device further comprises:
 the longitudinal front fixed beam and the longitudinal rear fixed beam, each being provided with fixed sliding rail grooves with rolling elements;   the longitudinal front movable beam and the longitudinal rear movable beam are provided with movable sliding rail grooves configured to match with the rolling elements; and   a limiting structure for limiting the movable sliding rail grooves on the fixed sliding rail grooves.   
     
     
         5 . The expandable folding table of  claim 4 , wherein the limiting structure includes one or more limiting blocks and limiting protrusions. 
     
     
         6 . The expandable folding table of  claim 4 , wherein the rolling elements are one of a roller, or a bearing, or a roller. 
     
     
         7 . The expandable folding table of  claim 2 , wherein the first board and the second board are either connected by hinges or by a flexible integrated structure. 
     
     
         8 . The expandable folding table of  claim 2 , further comprising:
 an attachment device between the first board and the second board when the expandable folding table is folded.   
     
     
         9 . The expandable folding table of  claim 8 , wherein the attachment device is a magnet that can attach the first board and the second board to each other. 
     
     
         10 . The expandable folding table of  claim 1 , wherein the first panel, the second panel, and the movable panel are blow molding panels, wherein the movable panel has grooves to match with protrusions on the first and second panels when the movable panel is in use. 
     
     
         11 . An expandable folding table, comprising:
 a first panel supported by a first frame;   a second panel configured to be coupled with the first panel, the second panel being supported by a second frame;   a movable panel coupled to the first frame so that it can be horizontally arranged between the first panel and the second panel to extend the expandable folding table when it is in use, or can be hidden under the first panel when it is collapsed; and   wherein the first frame and the second frame are connected by a pivot device and can be folded around a pivot shaft of the pivot device to achieve folding.   
     
     
         12 . The expandable folding table of  claim 11 , wherein the first frame is expandable and includes a fixed frame connected with a pivot device and a movable frame slidably arranged on the fixed frame. 
     
     
         13 . The expandable folding table of  claim 12 , wherein the movable panel is rotatably connected to a middle beam of the fixed frame. 
     
     
         14 . The expandable folding table of  claim 12 , wherein the first panel is connected to the movable frame through a fixed connection, and the first panel is configured to slide on a sliding rail device relative to the fixed frame. 
     
     
         15 . The expandable folding table of  claim 11 , wherein the first panel, the second panel, and the movable panel are blow molding panels. 
     
     
         16 . The expandable folding table of  claim 11 , wherein the movable panel has grooves to match with protrusions on the first and second panels when the movable panel is in use. 
     
     
         17 . The expandable folding table of  claim 11 , wherein the movable panel is foldable with a first board and a second board that is connected to each other. 
     
     
         18 . The expandable folding table of  claim 17 , wherein the first board and the second board of the movable panel are either connected by hinges or by a flexible integrated structure. 
     
     
         19 . The expandable folding table of  claim 17 , further comprising:
 an attachment device between the first board and the second board when the expandable folding table is folded.   
     
     
         20 . The expandable folding table of  claim 19 , wherein the attachment device is a magnet that can attach the first board and the second board to each other.