Patent ID: 9677703
Date: 2017-06-13
CPC Classifications: F04D,F16M

Claim:
1. A foldable electric fan, comprising: a fan head, a turnover mechanism, a supporting pipe group and a base, which are connected in sequence; wherein the base comprises a fixed left and right supporting base that is transversely parallel to the fan head, a movable front supporting base that can be turned up and a movable rear supporting base that can be folded horizontally to one side of the fixed left and right supporting base; wherein the movable front supporting base and the movable rear supporting base are movably hinged to two opposite sides of the fixed left and right supporting base respectively; wherein the said foldable electric fan also comprises a locking mechanism that is used for locking the movable front supporting base and the movable rear supporting base; wherein the locking mechanism comprises a sliding pressing plate for restriction, a pressing-down part that is used for locking the sliding pressing plate for restriction, and a limiting base that is used for limiting a sliding position of the sliding pressing plate for restriction; wherein the pressing-down part is arranged on a top face of the fixed left and right supporting base, a locking-through channel communicated with the top face of the fixed left and right supporting base is formed in a bottom of the pressing-down part, and openings in two sides of the locking-through channel are communicated with a position above the movable front supporting base and a position above the movable rear supporting base respectively; wherein the limiting base is arranged on a top face of the movable front supporting base or a top face of the movable rear supporting base, and a limit-through channel communicated with the top face of the movable front supporting base or the top face of the movable rear supporting base is formed in a bottom of the limiting base; wherein the sliding pressing plate for restriction is arranged in the limit-through channel and can slide along the limit-through channel to extend and penetrate through the locking-through channel; wherein when the base is folded, the sliding pressing plate for restriction is located in the limit-through channel; when the base is unfolded, the sliding pressing plate for restriction is located in both the limit-through channel and the locking-through channel at the same time, and is locked by the pressing-down part to press on the top face of the movable front supporting base, the top face of the fixed left and right supporting base and the top face of the movable rear supporting base.