Overhead shower and its switching method thereof

An overhead shower, comprising:

• a stationary part having a through water inlet channel that is set inside the stationary part, said stationary part including
• a joint being hollow and having a hollow hole, and
• a pushing plate fixed under the joint, said pushing plate having a through hole, said hollow hole and said through hole are connected together to form the through water inlet channel, the pushing plate including a triangular block fastened to a middle of said pushing plate, the triangular block having a face-up apex angle;
• a rotating part including
• a housing rotatably connected to the stationary part, wherein said housing sleeves said joint and is supported on the apex angle of the triangular block of the pushing plate, and
• a water division member, said housing and said water division member being fixed together to form a central chamber which connects to said through water inlet channel, said water division member having
• a pivot joint seat, and
• two through water division apertures disposed opposite each other so that one of the apertures is on a left side of the pivot joint seat and another of the apertures is on a right side of said pivot joint seat;
• and
• a cover plate being located inside said central chamber and including
• a pivot joint member that pivots on the pivot joint seat of the water division member so that said cover plate is rotatable to both the left and right sides of the pivot joint seat of the water division member, and
• two movable members disposed opposite each other on left and right sides of said pivot joint member, a bottom surface of the two movable members selectively seals the two through water division apertures, a top surface of the two movable members has a leaning member which is leanable against said stationary part.