Abstract: A portable electronic device includes a main body, a casing and a supporting unit. The casing is detachably connected to the main body. The supporting unit is connected to the casing and is rotatable relative to the casing. When the supporting unit rotates to a first position, the supporting unit supports the main body. When the supporting unit rotates to a second position, the casing and the main body are separated.

Abstract: A holding device includes a holder, a connecting body, and a base. The base has a first meshing portion. The connecting body is disposed between the holder and the base, and it has a pivotal element, a limiting portion, and a second meshing portion. The second meshing portion is disposed on the limiting portion. Two ends of a surface of the pivotal element are pivotally connected with the base and the limiting portion, respectively, and thus the base and the limiting portion may rotate relative to the pivotal element. When the limiting portion rotates relative to the pivotal element, the second meshing portion is meshed with or detached from the first meshing portion.

Abstract: A portable electronic device includes a main body, a casing and a supporting unit. The casing is detachably connected to the main body. The supporting unit is connected to the casing and is rotatable relative to the casing. When the supporting unit rotates to a first position, the supporting unit supports the main body. When the supporting unit rotates to a second position, the casing and the main body are separated.

Abstract: A SIM card securing mechanism for a mobile phone is described. A phone body has several positioning holes. One side of the securing plate is pivoted in the body to allow the securing plate to swivel relatively to the phone body. The securing plate has a plurality of elastic arms each of which has a protrusion. The securing plate is capable of being swiveled to a securing position relatively to the phone body to allow the protrusions to be fastened to the corresponding positioning holes via the elasticity of the elastic arms. Thus, the SIM card is sandwiched between the securing plate and the phone.

Abstract: A holding device includes a holder, a connecting body, and a base. The base has a first meshing portion. The connecting body is disposed between the holder and the base, and it has a pivotal element, a limiting portion, and a second meshing portion. The second meshing portion is disposed on the limiting portion. Two ends of a surface of the pivotal element are pivotally connected with the base and the limiting portion, respectively, and thus the base and the limiting portion may rotate relative to the pivotal element. When the limiting portion rotates relative to the pivotal element, the second meshing portion is meshed with or detached from the first meshing portion.

Abstract: A SIM card securing mechanism for a mobile phone is described. A phone body has several positioning holes. One side of the securing plate is pivoted in the body to allow the securing plate to swivel relatively to the phone body. The securing plate has a plurality of elastic arms each of which has a protrusion. The securing plate is capable of being swiveled to a securing position relatively to the phone body to allow the protrusions to be fastened to the corresponding positioning holes via the elasticity of the elastic arms.