Door lock structure

A door lock structure for installing on a fire door comprising:

• a base disposed on the fire door, wherein the base has an accommodation groove, and a groove bottom of the accommodation groove has a first locking hole;
• a pressing component comprising a pressing base, a roller column, a fixing plate, an elastic part and a locking part, wherein the pressing base has a bottom plate and two lateral plates, the two lateral plates respectively extend upward from two sides of the bottom plate, the bottom plate has an adjusting hole, the two lateral plates have two sliding holes, the fixing plate has a second locking hole, a hole area of the adjusting hole is larger than those of the first locking hole and the second locking hole, one end of the locking part is sequentially inserted through the first locking hole, the adjusting hole and the second locking hole, the fixing plate fixes the pressing base on the groove bottom of the accommodation groove, two ends of the roller column are respectively and slidingly disposed in the two sliding holes, one end of the elastic part abuts against the fixing plate, the other end of the elastic part abuts against a bottom of the roller column, and the roller column moves to one end of the sliding hole;
• a pressing shell, wherein two lateral sides of the pressing shell abut against the two ends of the roller column, respectively;
• and
• a locking component disposed on one end of the base, wherein the locking component comprises a gearing component and a lock, the pressing shell presses one end of the gearing component, and the other end of the gearing component moves the lock;
• wherein the pressing shell presses toward to the base, the pressing shell presses the two ends of the roller column, the two ends of the roller column move along the two sliding holes, the roller column presses the elastic part, the elastic part is in a compression state, the pressing shell presses the gearing component, and the gearing component moves the lock.