Head tube and lock integrated bicycle

The utility model discloses a head tube and lock integrated bicycle in the technical field of bicycles, which comprises a bicycle with a head tube, a lock seat is arranged at the front part of the head tube of the bicycle, a lock is hidden in the lock seat, a lock body can be inserted into the lock seat along the axis direction of the lock seat, and the head tube and the lock can be locked according to different insertion positions of the lock body from top to bottom. A bicycle handlebar or a bicycle front fork can be locked, and steering of a bicycle is limited. The lock seat is integrally formed or welded on the head tube, the lock is directly mounted in the lock seat, the lock is difficult to prize and steal from the outside due to the hidden design, double burglary prevention is difficult to damage, and the design is higher in safety degree, wide in applicability and applicable to all bicycles with the head tube. During storage, a bicycle handlebar or a bicycle front fork can be conveniently locked, opera