The utility model provides a plug frock is used to storage battery charging joint, be equipped with the slider at strip framework top, the slider bottom is provided with the bolt II with the device plug looks fixed connection that charges, the upper portion of slider is rotated and is provided with a connecting rod, the connecting rod rotates with the middle part of handle bar to be connected, theone end and the top of strip framework of handle bar are passed through the rotation of rotational pin axle and are connected, be provided with the bolt I with the machine transplanting of rice seatfixed connection that charges in the strip framework, it makes a round trip to slide in the slide rail to drive the slider through the brake valve lever pole, go up fixed I machine transplanting of rice seat of upward fixing that charges of device plug and bolt that charges and peg graft mutually and separate in order to realize bolt II. The utility model discloses a workman operating handle poledrives II motions of slider and bolt to the realization is charged device plug and is pegged graft mutually and separate with the machine transplanting of rice seat that charges, this frock simple structure, convenient operation can realize the plug of storage battery charging plug alone, keeps away from moreover and holds cell body, has improved the security of operation.