Door lock device

A door lock device for a door (1), the door having an upper through hole (11) and a lower through hole (12), the door lock device comprising:

• a latch bolt device (6) adapted to be disposed on the door (1);
• a case frame (2) having an upper hollow cylinder (22) adapted to be inserted through the upper through hole (11) and a lower hollow cylinder (23) adapted to be inserted through the lower through hole (12);
• a first pressing plate (8) disposed on the case frame (2);
• a drive mechanism (5) disposed in the upper hollow cylinder (22);
• the case frame (2) further comprises a recess (21);
• a core (3) has a driven block (31);
• a lock fastener device (4) has a lateral elastic block (42) and a blocking bar (41);
• the upper hollow cylinder (22) has an inner groove (222), a lateral slot (221), and a core seat (223) receiving the core (3) and the lock fastener device (4);
• the core seat (223) has a bottom hole (224);
• the drive mechanism (5) has a rack (53) to drive the latch bolt device (6);
• a drive frame (51) having a gear set (52) adapted to drive the rack (53);
• the rack (53) has an upper groove (532);
• the rack (53) passes through the lateral slot (221) to connect to the latch bolt device (6);
• a pressing device (81′) is disposed in the upper hollow cylinder (22) to connect to the drive frame (51);
• the pressing device (81′) includes a protruded block (82′);
• the blocking bar (41) inserted in the upper groove (532);
• a compression spring (S) is disposed between the drive frame (51) and the rack (53);
• a torsion spring (S1) is disposed between the core (3) and the lock fastener device (4);
• the first pressing plate (8) has an upper pressing portion (81);
• the recess (21) receives the first pressing plate (8);
• a locking plate (71) covers the upper through hole (11) and the lower through hole (12);
• a decoration plate (72) is disposed on the locking plate (71);
• the decoration plate (72) has an opening (73);
• a second pressing plate (8′) is disposed on the decoration plate (72);
• and
• the opening (73) receives the second pressing plate (8′) and an upper portion of the second pressing plate (8′) is connected to the pressing device (81′).