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The present invention relates to a protective sleeve for portable electronic devices. The protective sleeve for portable electronic device includes a sleeve frame, a cover, and a turning structure. The sleeve frame includes a plurality of connecting sidewalls cooperatively defining a space for recei

The present invention relates to a protective sleeve for portable electronic devices. The protective sleeve for portable electronic device includes a sleeve frame, a cover, and a turning structure. The sleeve frame includes a plurality of connecting sidewalls cooperatively defining a space for receiving the portable electronic device. The cover is covering the space of sleeve frame. The cover is connected to the sleeve frame and can be opened via the turning structure. The protective sleeve for portable electronic device is convenient for use, and can fully protect the portable electronic device.

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1. A protective sleeve for portable electronic devices, the protective sleeve comprising: a sleeve frame including a plurality of connecting sidewalls defining a space for receiving the portable electronic device;a cover for covering the space of the sleeve frame; anda turning structure, the cover m

1. A protective sleeve for portable electronic devices, the protective sleeve comprising: a sleeve frame including a plurality of connecting sidewalls defining a space for receiving the portable electronic device;a cover for covering the space of the sleeve frame; anda turning structure, the cover movably connected to the sleeve frame via the turning structure, wherein the turning structure comprises two latching grooves defined in outer surfaces of two opposite sidewalls of the sleeve frame respectively; and a pair of latching hooks extending out from opposite edges of the cover corresponding the latching grooves; the latching grooves are U-shaped and run through the sleeve frame, a tongue extends in each latching groove from an end of the latching groove, and each latching hook is partially positioned between the tongue and a sidewall defining the latching groove. 2. The protective sleeve for portable electronic devices as claimed in claim 1, wherein each of the latching hooks is substantially L-shaped and an end of each of the latching hooks forms a spherical portion; the spherical portion is slidably engaged in each of the latching grooves. 3. The protective sleeve for portable electronic devices as claimed in claim 1, wherein each of the latching hooks is substantially L-shaped and an end of each of the latching hooks defining a ring-shaped engaging groove; the ring-shaped engaging groove is slidably engaged with each of the latching grooves. 4. The protective sleeve for portable electronic devices as claimed in claim 1, wherein the sleeve frame further comprises at least one first magnetic member disposed on top of the sidewalls; the cover further comprises at least one second magnetic member disposed on a bottom surface corresponding to the at least one first magnetic member. 5. The protective sleeve for portable electronic devices as claimed in claim 1, wherein the sidewalls of the sleeve frame are made of plastic materials reinforced by rigid materials, except that at least two opposite corners of the sidewalls are made of plastic materials. 6. The protective sleeve for portable electronic devices as claimed in claim 1, wherein a latitudinal medial cross-sections of each of the sidewalls are substantially C-shaped. 7. The protective sleeve for portable electronic devices as claimed in claim 1, wherein the cover is a transparent plate. 8. The protective sleeve for portable electronic devices as claimed in claim 1, wherein the cover further comprises a reflection reducing coating deposited on an inner surface of a portion of the cover corresponding to a screen of the portable electronic device received in the space of the sleeve frame. 9. The protective sleeve for portable electronic devices as claimed in claim 1, wherein the sleeve frame further comprises a plurality of through holes defined in portions of the sleeve frame corresponding to an earphone jack and a charger socket of the portable electronic device received in the space of the sleeve frame. 10. The protective sleeve for portable electronic devices as claimed in claim 1, wherein the cover further comprises a plurality of through holes defined in portions of the cover corresponding to a speaker and a microphone of the portable electronic device received in the space of the sleeve frame. 11. The protective sleeve for portable electronic devices as claimed in claim 1, wherein the sleeve frame defines a slit in the sidewall, the slit running through the sidewall of the sleeve frame. 12. The protective sleeve for portable electronic devices as claimed in claim 1, wherein the sleeve frame comprises a first frame and a second frame, the first frame defining a pair of latching pins on two ends of the first frame and the second frame defining a pair of latching holes adjacent to two ends of the second frame; the pair of the latching pins of the first frame are engaged into the pair of latching holes of the second frame. 13. The protective sleeve for portable electronic devices as claimed in claim 1, wherein corners of the sleeve frame and the cover are rounded.