Composite coded lock for a bag

A composite coded lock for a bag, comprising:

• a central lock hook and at least one side lock hook;
• a bottom shell with a through hole for a hook portion of the central lock hook to be inserted into formed in the middle of the bottom shell;
• a locking device fixed on a casing and having a key lock and a coded lock;
• the key lock having a rotatable lock core and disposed on one side of the coded lock;
• the coded lock having a controlled lock blade having a limiting portion;
• the limiting portion of the lock blade disposed at an unlocking position in the case of correct password and at a locking position in the case of incorrect password;
• the locking position of the limiting portion being in the moving direction of the hook portion of the central lock hook;
• a controlled portion extended out of the lock blade towards the direction of the lock core of the key lock;
• in the case of unlocking the lock core, the lock core connected with the controlled portion of the lock blade and the limiting portion of the lock blade controlled by the controlled portion to enter into the unlocking position;
• and in the case of locking the lock core, the limiting portion of the lock blade controlled by the controlled portion to enter into the locking position, wherein the limiting portion of the lock blade is controllable between the locking position and the unlocking position by actuation of either the key lock or the coded lock;
• a clamping device, the clamping device engaged with the side lock hook and having a clamping pedestal fixed on one side of the bottom shell;
• a through hole for the side lock hook to be inserted into formed on one side of the clamping pedestal;
• and the clamping pedestal provided with a locking piece clamped with the side lock hook and a push and control block used for controlling the movement of the locking piece;
• and
• a linkage, the linkage arranged on the bottom shell;
• one end of the linkage butted or connected with the push and control block and the other end of the linkage disposed on one side of the unlocking position;
• when the limiting portion of the lock blade is at the locking position, the limiting portion is in the moving direction at the other end of the linkage, which is limited by the limiting portion, and then the push and control block are limited on the clamping pedestal and the locking piece clamped with the side lock hook;
• when the limiting portion of the lock blade is at the unlocking position, the other end of the linkage is movable and the push and control block are movable and drive the locking piece and the side lock hook to be disengaged from each other, wherein the linkage comprises a movable plate, a clutch block, a drive plate and a control plate which are engaged with the limiting portion of the lock blade;
• the clutch block is provided with an axle hole;
• the bottom shell is provided with a dead axle engaged with the axle hole;
• two driving parts are arranged on the side face of the clutch block and disposed on the same side with the axle hole;
• a torsion spring is sleeved on the dead axle inside the axle hole;
• both ends of the torsion spring are respectively connected with the clutch block and the bottom shell;
• one end of the movable plate is disposed on one side of the limiting portion of the lock blade and the other end of the movable plate is butted with one driving part of the clutch block;
• one end of the drive plate is butted with the other driving part of the clutch block and the other end of the drive plate is connected with one end of the control plate;
• a control block connected with the control plate is formed at the other end of the control plate and butted with the push and control block;
• and the limiting portion of the lock blade has a push-out inclined plane which makes contact with the movable plate.