Patent ID: 7611388

Claim:
An electricity acquiring plug used in vehicle, comprising: a hollow main body having an electrode connecting set installed inside therein and the electrode connecting set being installed with a power connecting electrode and two ground connecting electrodes respectively at a front end and two lateral ends of the main body, the power and the ground connecting electrodes being respectively coupled to guiding wires of a power cable, the power cable being extended from the rear end of the main body, wherein a pair of fastening sheets and at least one through hole being respectively provided to a front and a rear portions of the main body in a radial direction; a sliding member, two connecting sheets and two pushing rods being respectively installed at a front and a rear ends of the sliding member, the pair of connecting sheets protruding from the front end of the main body, the power connecting electrode being disposed between the two connecting sheets, the two push rods being respectively provided with a beveled surface, and a first spring being installed between the sliding member and the interior of the main body; a passive member, two connecting arms provided adjacent to the beveled surfaces at the outer ends of the pushing rods being extended from the front end of the passive member, and a free end of each of the connecting arms being provided adjacent to the fastening sheets, and at least one linking section protruding from the through hole being radially provided on the passive member, a second spring being installed between the passive member and the interior of the main body; and a releasing ring, provided at the rear portion of the main body, a connecting ring whose inner end adjacent to the linking section being protrudingly provided on the inner wall of the releasing ring; when the two connecting sheets provided at the front end of the main body are inwardly retracted due to an external force, the beveled surfaces of the pair of pushing rods are inwardly moved and the pair of connecting arms of the passive member are outwardly expanded, so inner walls of the pair of fastening sheets of the main body are outwardly expanded through the pair of connecting arms, a fastening status is therefore obtained; when the releasing ring provided at the rear portion of the main body is backwardly pulled, the linking section of the passive member is pushed by the connecting ring of the releasing ring, so the passive member is backwardly moved, and the fastening sheets are no longer pressed and inwardly retracted so the fastening status is released.