Door Lock with Transmission Mechanism

A door lock with transmission mechanism which is comprised of that:

• A lock body is comprised of a stop plate which is closely attached to one side of the door, the middle of the said stop plate is installed with a main lock which is housed inside the door, an auxiliary lock is installed respectively between the main lock and each end of the stop plate, and is housed inside the door similar to the case of main lock, whereof the said main lock is installed with a first locking mechanism and a second locking mechanism while each auxiliary lock is installed with a stop mechanism.
• The said first locking mechanism is comprised of a first actuator, whereof one end of the said first actuator is hinged with a first link rod which has a long hole between its two ends. The said long hole is sleeved into a fixed rod. The other end of the first link rod is further hinged with a second link rod which is hinged with another lock at its end, whereof the said lock has a lock-head which is extendable to stop plate and recover, whereof the same end of the said second link rod is further installed with a torsion spring to recover the first link rod back to position after it is moved.
• The said second locking mechanism is comprised of a second actuator, whereof the second actuator is installed with a second torsion spring for recovering the second actuator after its rotation. One end of the second actuator is installed with a shift-lever to turn a brake which has a shift-part, whereof the shift-part is turned to drive a main lock-tongue to extended out of the stop plate and recovered by the push of a third torsion spring
• Each of the two stop mechanisms is comprised of a link bar which is connected with a connection bar, whereof the connecting bar is extended from the auxiliary lock and entered the two sides of main lock, whereof a hinge is driven by the said link bar to connect with one end of a auxiliary lock-tongue in the stop mechanism, whereof the said stop mechanism has a pusher which is pushed by a compression spring 46 at one end while its another end push the bottom end of the said auxiliary lock-tongue, thereby to recover the lock-tongue after it is moved.
• A link plate which is installed in the main lock, whereof the link plate is sleeved in the long hole on top of the shift-lever of the second actuator of the second locking mechanism, two ends of the said link plate is respectively connected with the connecting bar of each stop mechanism, further, the said link plate is sleeved in the shift-part of the second locking mechanism, thereby when the brake is turned, the link plate is driven by the shift-part to drive the auxiliary lock-tongue of each stop mechanism for reciprocating movement.