Gun-type firing device using caseless projectile

Abstract

A gun-type firing device using a caseless projectile is disclosed. The caseless projectile has a bullet head and an impact seat at two ends thereof and a groove adjacent to the impact seat. The gun-type firing device includes a gunstock, a gun bolt and a gun barrel. The gun bolt is located on one side of the gunstock. The gun bolt includes a cocking handle and an extractor. The cocking handle can perform a linear displacement movement along the extension direction of the gunstock. The extractor is located at one end of the cocking handle. The gun barrel is located on the gunstock and is adjacent to one end of the gun bolt. The gun barrel does not have rifling.

What is claimed is: 
     
         1 . A gun-type firing device using a caseless projectile, the caseless projectile having a bullet head and an impact seat at two ends thereof and a groove adjacent to the impact seat, the gun-type firing device comprising:
 a gunstock;   a gun bolt, located on one side of the gunstock, the gun bolt including:
 a cocking handle, configured to perform a linear displacement movement along an extension direction of the gunstock; and 
 an extractor, located at one end of the cocking handle; and 
   a gun barrel, located on the gunstock and connected to one end of the gun bolt, wherein the gun barrel does not have rifling;   wherein when the impact seat is against one side of the gun bolt and the extractor is engaged with the groove, the caseless projectile and the cocking handle perform the linear displacement movement for the caseless projectile to move out of the gun barrel.   
     
     
         2 . The gun-type firing device of  claim 1 , wherein the gun barrel is an elongate hollow cylindrical barrel, the gun barrel includes a muzzle area, a barrel area and a chamber area that are arranged in sequence from front to back, the chamber area includes at least three protrusions, the protrusions are arranged equidistantly on an annular inner wall of one end of the chamber area and are adjacent to the barrel area, when the caseless projectile is pushed into the chamber area, the protrusions scribe an outer surface of the caseless projectile to form a plurality of scribe lines, and the protrusions secure the caseless projectile in the gun barrel. 
     
     
         3 . The gun-type firing device of  claim 2 , wherein the protrusions have a height of 0.05 millimeters. 
     
     
         4 . The gun-type firing device of  claim 2 , wherein the cocking handle includes at least one raised block, the chamber area has at least one guide groove, the raised block is disposed on one side of the cocking handle and is adjacent to the end of the cocking handle, the guide groove is located on the inner wall of the chamber area, when the end of the cocking handle is pushed into the chamber area, the raised block and the guide groove cooperate with each other so that the gun bolt locks and closes the chamber area. 
     
     
         5 . The gun-type firing device of  claim 4 , wherein the raised block has a first length, a first width and a first height, the first length is 1 millimeter, the first width is 5 millimeters, and the first height is 3 millimeters. 
     
     
         6 . The gun-type firing device of  claim 4 , wherein the cocking handle further includes an airflow groove, the airflow groove surrounds an outer surface of the cocking handle and is adjacent to the raised block, when the impact seat is fired to ignite gunpowder in the caseless projectile, a gas after combustion flows back to the airflow groove. 
     
     
         7 . The gun-type firing device of  claim 6 , wherein the airflow groove has a second width and a depth, and each of the second width and the depth is 2 millimeters. 
     
     
         8 . The gun-type firing device of  claim 1 , further comprising a retaining frame, the retaining frame being disposed on another side of the gunstock, the retaining frame being configured to stand on a flat surface. 
     
     
         9 . The gun-type firing device of  claim 2 , wherein the chamber area includes a raised member, the raised member is located on an inner wall of a reduced area of the chamber area, when the caseless projectile is loaded, the extractor is disengaged from the groove after the extractor strikes the raised member, and the caseless projectile is pushed into the chamber area by the cocking handle. 
     
     
         10 . The gun-type firing device of  claim 9 , further comprising a safety device located on one side face of the gunstock, wherein when a safety lever of the safety device is in a first position, the safety device is in an off state so that the gun-type firing device can be fired; when the safety lever is in a second position, the gun bolt can be pulled for loading and unloading, but the gun-type firing device cannot be fired; when the safety lever is in a third position, the gun-type firing device cannot be fired and the gun bolt is locked and unable to be pulled.