Tightness-automatically-adjustable double-brake bicycle locking device for electric bicycle

The utility model discloses an electric bicycle double-brake locking device with automatically adjustable tightness, which comprises a front fork and a handlebar, the handlebar is mounted at the top end of the front fork, a disc brake disc is arranged at the bottom end of the front fork, a disc brake is arranged on the outer wall of the disc brake disc, the disc brake is slidably connected with the disc brake disc, the disc brake is fixedly connected with the front fork, and the front fork is fixedly connected with the disc brake disc. The surface of the handlebar is sleeved with a connecting sleeve, an oil pressure brake is installed on the outer wall of the connecting sleeve, an oil conveying pipe is arranged on the outer wall of the oil pressure brake, the bottom end of the oil conveying pipe extends into the disc brake, a shifting plate switch is arranged on the side, away from the connecting sleeve, of the outer wall of the handlebar, and a control line is arranged on the outer wall of the shifting plate