Connecting rod structure of a laser sight of a gun

Abstract

A laser sight is coupled to a gun with a connecting rod; the connecting rod includes a rod body, and an expanding and fixing sleeve having a truncated-cone shape; the rod body is passed through the sleeve, and the sleeve is inserted in a joining hole of the gun; the rod body has a front threaded portion threadedly joined to the laser sight, a middle truncated-cone shaped section, and a male threaded portion adjoining the truncated-cone shaped section; the expanding and fixing sleeve has a lengthways extending gap thereon, and a truncated-cone shaped hole receiving the truncated-cone shaped section of the rod body; the taper of the truncated-cone shaped section of the rod body matches that of the truncated-cone shaped hole of the sleeve; the sleeve has a female threaded portion in the truncated-cone shaped hole, which is threadedly engaged with the male threaded portion of the rod body.

1 . Connecting rod structure of a laser sight of a gun, comprising
 a rod body; the rod body including a truncated-cone shaped section; the rod body including a male threaded portion at a first end thereof, which adjoins the truncated-cone shaped section; and   an expanding and fixing sleeve having a truncated-cone shape; the expanding and fixing sleeve having a lengthways extending gap thereon; the expanding and fixing sleeve having a truncated-cone shaped through hole receiving the truncated-cone shaped section of the rod body; a taper of the truncated-cone shaped section of the rod body matching a taper of the truncated-cone shaped through hole of the sleeve; the expanding and fixing sleeve having a female threaded portion in the truncated-cone shaped through hole thereof, which is threadedly engaged with the male threaded portion of the rod body.   
   
   
       2 . The connecting rod structure of a laser sight of a gun as claimed in  claim 1 , wherein the rod body has an annular groove on one end thereof, and a stopping ring is secured around the annular groove. 
   
   
       3 . The connecting rod structure of a laser sight of a gun as claimed in  claim 2 , wherein the stopping ring is C-shaped. 
   
   
       4 . The connecting rod structure of a laser sight of a gun as claimed in  claim 1 , wherein the rod body has a second threaded portion on a second end thereof, which points to an opposite direction of the first end of the rod body; the rod body having a contacting block adjoining the second threaded portion thereof. 
   
   
       5 . The connecting rod structure of a laser sight of a gun as claimed in  claim 4 , wherein the rod body has an annular groove on one end thereof, and a stopping ring is secured around the annular groove.