Adjustable table

1. An adjustable table comprising:

a base having

at least one leg and each of the at least one leg having a top end; and

a mounting bracket mounted on the top end of each of the at least one leg;

a telescopic tube assembly located over the mounting bracket of the base, indirectly connected to the mounting bracket and having

a shaft located over the mounting bracket;

a central tube mounted securely around the shaft; and

two sliding tubes mounted slidably around the shaft with the central tube located between the sliding tubes;

two outside tabletop components mounted slidably on the mounting bracket of the base, corresponding to and slidably mounted respectively on the sliding tubes and each outside tabletop component having a top surface and a bottom surface; and

two inside tabletop components being foldable and corresponding to the sliding tubes and each inside tabletop component having

a first board mounted pivotally and slidably on the central tube and mounted pivotally and slidably on a corresponding sliding tube; and

a second board connected pivotally to the first board and selectively pivoting and stacking on the first board;

wherein each inside tabletop component is capable of independently folding and flipping underneath the outside tabletop components, and the outside tabletop components slide to abut each other or abut an un-flipped inside tabletop component so that a total tabletop length of the adjustable table is shortened.

2. The adjustable table as claimed in claim 1 , wherein

each outside tabletop component further has an outside sleeve mounted securely on the bottom surface and mounted slidably around a corresponding sliding tube; and

the first board of each inside tabletop component has a bottom and two inside sleeves mounted securely on the bottom, one inside sleeve is mounted pivotally and slidably around the central tube and the other inside sleeve is mounted pivotally and slidably around the corresponding sliding tube.

3. The adjustable table as claimed in claim 2 , wherein

the central tube has two ends and two link flanges formed respectively on and protruding radially from the ends of the central tube;

each sliding tube has two ends and two link flanges formed respectively on and protruding radially from the ends of the sliding tube;

the outside sleeve of each outside tabletop component selectively abuts one of the link flanges of the corresponding sliding tube; and

the inside sleeve of each inside tabletop component mounted around the central hole selectively abuts one of the link flanges of the central tube.

4. The adjustable table as claimed in claim 3 , wherein

the mounting bracket has

two bridges mounted oppositely on the mounting bracket; and

two first sliding elements mounted respectively on the bridges;

each outside tabletop component further has two second sliding elements mounted on the bottom surface and slidably engaged respectively with the first sliding elements of the base.

5. The adjustable table as claimed in claim 4 , wherein

the first sliding elements are gears rotatably mounted respectively on the bridges; and

the second sliding elements of each outside tabletop components are racks respectively geared engaged respectively to with the gears so that the outside tabletop components are capable of sliding symmetrically on the base.

6. The adjustable table as claimed in claim 5 , wherein the central tube further has a fastening pin mounted through the central tube and the shaft to securely hold the central tube around the shaft.