Fastening structure for portable electronic device

1. A portable electronic device comprising:

a cover including two opposite side edges, and a plurality of hooks positioned at the two side edges;

a main body including two opposite sidewalls, and a plurality of latching portions corresponding to the hooks formed at the two sidewalls, each latching portion defining a receiving cavity; and

a plurality of latching members attached to the latching portions, each latching member including a middle plate, the middle plate being bent at a distal end to form a curved and hollow locking portion, the locking portion received in the receiving cavity

wherein the hooks slide along the locking portions to push outward the middle plate until each hook passes its respective locking portion, the middle plate rebounds to its original shape and the hooks are locked by the locking portions to allow the cover to be locked on the main body.

2. The portable electronic device as claimed in claim 1 , wherein each latching portion comprises two bars at two opposite sides of the receiving cavity, and the latching member comprises two fixing portion clasping the two bars.

3. The portable electronic device as claimed in claim 2 , wherein a cutout is defined beneath each bar, the latching member comprising a resisting plate beneath each fixing portion, the resisting plate received in the cutout and resisting the bar.

4. The portable electronic device as claimed in claim 3 , wherein the latching member includes two extending plates positioned at opposite sides of the middle plate, each resisting plate integrally extends from a side of each extending plate, and each fixing portion is formed at one end of a corresponding extending plate.

5. The portable electronic device as claimed in claim 4 , wherein a notch is defined between the middle plate and each extending plate.

6. The portable electronic device as claimed in claim 5 , wherein the latching member further comprises a curved plate portion connecting the middle plate and each extending plate.

7. The portable electronic device as claimed in claim 1 , wherein each latching portion comprises a frame integrally formed with a sidewall, and the receiving cavity is defined in the frame.

8. The portable electronic device as claimed in claim 7 , wherein each sidewall comprises a top surface, and the receiving cavities communicate with the top surfaces.

9. The portable electronic device as claimed in claim 2 , wherein the fixing portion is hook shaped, and the bar is latched in the fixing portion.