A combination lock device with latch bolt comprising:
- a combination lock having multiple number dials provided thereon, a lock hook being disposed at one side of a bottom of said combination lock, and a positioning hole being disposed at the other side thereof;
- a rotary rod comprising a linkage rod connected to said positioning hole for synchronous movement, said linkage rod has a polygonal portion at a lower end thereof, which passes through a plate hole of a faceplate and fits into a mounting hole of a mounting seat, said mounting seat having two projections at a lower end thereof;
- said faceplate, being an elongate strip structure and having a size matching that of said combination lock, said faceplate being provided with said plate hole for passage of said linkage rod and a retain slot for receiving said lock hook;
- a securing seat having a through seat hole for accommodating said rotary rod means and multiple pins at a bottom side thereof, said securing seat being provided with two slots respectively disposed at a rear end and a front end thereof for receiving a slide piece;
- said rotary rod further comprising a turning piece having a hole for receiving said mounting seat and a post at a bottom side thereof fitted, said projections at the bottom side of the mounting seat being fitted into a couple of corresponding holes of a connecting piece located beneath said turning piece to achieve synchronous movement, said connecting piece being configured to have a fan-shaped notch for pushing said post of said turning piece;
- said slide piece, consisting of a horizontal portion and two vertical wings, said slide piece having one end thereof received in said slots of said securing seat, a transverse slide slot being formed at one side of the horizontal portion for passage of said post of said turning piece therethrough to push said slide piece, a notch being formed to the front of said slide slot, and said wings being disposed at both sides of said notch, each of said wings having a U-shaped indentation;
- a latch bolt of a substantially L-shaped lock structure, said latch bolt having a head portion provided with a first through hole and a second through hole, a movable pin being passed through said first through hole to mount astride said U-shaped indentations so that said latch bolt may pass through said notch of said slide piece;
- and
- a housing, being an open-top box structure with multiple holes in a bottom side thereof for receiving and positioning said pins of said securing seat, said housing being provided with a slot at a suitable position for matching said notch of said slide piece to allow extension of said latch bolt, two wings projecting respectively from two opposite ends of a front portion of said slot of said housing, each of said wings having a wing hole, a positioning pin being passed through said wing holes and said second through hole of said latch bolt;
- said housing being further provided with two through holes at opposite ends of a front portion thereof for passage of a retain pin which passes through said through holes of said housing and a spring disposed between said through holes of said housing, such that a first end of said spring engages a lug of said housing and a second end thereof urging against said movable pin;
- number dials for turning to a preset code number, said lock hook disengages from said retain hole, and by turning said combination lock, said rotary rod and said number dials accommodated inside said housing synchronously turn therewith to cause said post of said turning piece to be pushed by said notch of said connecting piece, thereby forcing said slide piece in said slide slot to displace and said latch bolt to retract into said housing, unlocking said combination lock.