Bottom opening password lock

A bottom opening password lock, comprising a lock case (1) and a liner (7) arranged in the lock case (1) as well as a shackle (2) connected with a top of the lock case (1), and wherein a fork (3), a password assembly (4) and a locking mechanism (5) are installed and arranged on the liner (7);

• and characterized in that the password assembly (4) comprises a pin shaft (41) and a second spring (42), a clutch sleeve (43), a password wheel (44), a code adjusting lever (45) and a washer (46) sleeved on the pin shaft (41), and one end of the second spring (42) is abutted against an inner side of the washer (46), and the other end is abutted against the clutch sleeve (43) away from the code adjusting lever (46);
• and the clutch sleeve (43) comprises a shaft sleeve (431) and a driving part (432);
• the password wheel (44) is sleeved on the shaft sleeve (431);
• multiple notches (441) are arranged in the center of the password wheel (44);
• a convex key (4324) that extends towards one side of the shaft sleeve (431) along a longitudinal direction of an axis of the pin shaft (41) and is matched with the notch (441) is arranged on the driving part (432);
• the code adjusting lever (45) comprises a sleeving portion (451) and a handle (452);
• The sleeving portion (451) is sleeved on the pin shaft (41);
• an opening (11) for the handle (452) to extend is arranged at the bottom of the lock case (1);
• the driving part (432) comprises a flat portion (4321) and a curved portion (4322), a groove (4323) is arranged on the curved portion (4322), and a bulge (71) that is matched with the groove (4323) is arranged on the liner (7);
• when adjusting a password through the code adjusting lever (45), the code adjusting lever (45) directly pushes the clutch sleeve (43) to move and separate from the password wheel (44) while the pin shaft (41) is motionless so that the convex key (4324) is separated from the notch (441) of the password wheel (44), and the groove (4323) of the clutch sleeve (43) is matched with the bulge (71) arranged on the liner (7) so that the clutch sleeve (43) does not rotate around the pin shaft (41).