Adjustable mounting bracket for electronic device

1. A mounting bracket, comprising:

a holding portion, comprising a holding frame, a rotating frame and a connecting hinge, the rotating frame defining a plurality of tri-lobed holes, the connecting hinge fixing the holding frame with the rotating frame; and

a mounting portion, comprising an adjusting strap, a plurality of hook portions, a pair of latch portions and a pair of latching hooks, each of the plurality of hook portions comprising a hook base to receive the adjusting strap and a connecting hook protruding outwardly from the hook base, each of the latch portions comprising a receiving opening, a first buckling portion and a second buckling portion, the adjusting strap connecting with one of the first buckling portion and the second buckling portion to fasten one end of the adjusting strap on the latch portion, each of the pair of latching hooks comprising an adjusting segment received in the receiving opening and a securing segment perpendicularly bending from the adjusting segment;

wherein the connecting hook is received in the corresponding tri-lobed hole to mount the mounting portion onto the holding portion, the mounting bracket is adjustably mounted on different positions by adjusting a relative position between the holding frame and the rotating frame as well as by securing the latch portion on different position of the adjusting strap and by mating the hook portion with the tri-lobed hole.

2. The mounting bracket as claimed in claim 1 , wherein the mounting portion further comprises a pair of adjustable buckles engaging with the adjusting strap to regulate a length of the adjusting strap according to the holding portion.

3. The mounting bracket as claimed in claim 2 , wherein the mounting portion further comprises a pair of adjustable screws, each of the latch portions further defines a round hole perpendicularly communicating with the receiving opening, and the adjusting segment of the latching hook defines an adjusting slot, the latching hook assembled to the latch portion by inserting each of the pair of the adjustable screws through the round hole and the adjusting slot.

4. The mounting bracket as claimed in claim 3 , wherein the holding frame comprises a first convex stage and a plurality of protruding posts extending from the first convex stage and spaced apart from each other, and the rotating frame defines a receiving groove receiving the first convex stage and a plurality of latching grooves communicating with the receiving groove to engaging with the plurality of protruding posts, a relative position between the holding frame and the rotating frame can be adjusted by selectively mating the plurality of protruding posts with the plurality of latching grooves.

5. The mounting bracket as claimed in claim 4 , wherein the receiving groove, the first convex stage and the plurality of protruding posts are integrally formed with the holding frame.

6. The mounting bracket as claimed in claim 5 , wherein in the middle of the holding frame, a first hole passing through the holding frame and the first convex stage is defined, the first hole is coaxial to the first convex stage, the rotating frame further comprises a second convex stage opposite to the receiving groove and defines a second hole coaxially passing through the receiving groove and the second convex stage.

7. The mounting bracket as claimed in claim 6 , wherein the connecting hinge comprises a head portion, an elastic element, a shaft segment and a pair of latching clips, the elastic element is coiled around the shaft segment and resisted between the head portion and the holding frame, and the pair of latching clips are received in the second hole to mount the holding frame with the rotating frame.

8. The mounting bracket as claimed in claim 7 , wherein each of the plurality of hook portions further comprises a plurality of mounting screws, the hook base defines a strap hole to receive the adjusting strap and a screw hole perpendicularly communicating with the strap hole, each of the plurality of the mounting screws engages with the screw hole and resists onto the adjusting strap to secure the adjusting strap on the hook portion.

9. The mounting bracket as claimed in claim 8 , wherein the mounting base is integrally formed with the connecting hook.

10. The mounting bracket as claimed in claim 3 , wherein the first buckling portion comprises a first side buckle and a second side buckle twinned with the first side buckle to allow the adjusting strap to pass through, the second buckling portion comprises a pair of third side buckles to allow the adjusting strap to pass through.