Core structure of a gun trigger lock

Abstract

A core structure of gun trigger lock comprises two embedded parts. A first embedded part includes a pit and a straight hole; a lock piece and a spring are disposed in the pit; the lock piece, having parallel ratchets formed on one side, is pushed by the spring and moves upward constantly. A second embedded part includes a core rod hole, and a straight core rod is disposed therein; the straight core rod includes a long keyhole at the open end, and a aspheric bump is placed at the bottom of the keyhole; a gear shaft, having parallel ratchets on one side, extends from the straight core rod and can be inserted into the straight hole of the first embedded part. Moreover, a key is also included in the present invention, having an aspheric pit at the front end which matches with the shape of the aspheric bump at the bottom of the keyhole of the second embedded part. Thus, by turning the key to rotate the straight core rod together with the gear shaft, the first and second embedded parts can be combined together or released separately.

1 . A core structure of a gun trigger lock, comprising: 
 a first embedded part and a second embedded part to be combined together or release separately;    a pit and a straight hole formed in the first embedded part;    a lock piece and a spring disposed in the pit, the lock piece including ratchets on one side and moving upward constantly by the recovery force of the spring;    a core rod hole formed in the second embedded part;    a straight core rod disposed in the cord rod hole;    a gear shaft at the rear end of the straight core rod inserted into an open groove, having ratchets on one side; combination of the gear shaft and the open groove inserting into the straight hole of the first embedded part;    a keyhole formed at the open end of the straight core rod including a bump at its bottom; and    a key including a pit at the front end corresponding to the shape of the bump inserting into the keyhole.    
   
   
       2 . The structure according to  claim 1 , wherein the straight core rod of the second embedded part has an arc groove at the edge of the end.  
   
   
       3 . The structure according to  claim 2 , wherein the core rod hole of the second embedded part has a block inside the inner edge of hole.  
   
   
       4 . The structure according to  claim 2 , wherein the bump placed at the end of the keyhole of the straight core rod in the second embedded part is aspheric.  
   
   
       5 . The structure according to  claim 1 , wherein the shape of the pit at the front end of the key is the same as the shape of the bump at the bottom of the keyhole in the second embedded part, and both shapes are aspheric.  
   
   
       6 . The structure according to  claim 1 , wherein the key inserted into the keyhole of the straight core rod and the pit of the key matching with and covering around the bump; when the key turned, it can rotate the straight core rod together with the gear shaft.