The semi-automatic shotgun of gas operated
But the utility model belongs to the shotgun of continuous fire, the semi-automatic shotgun of particularly a kind of gas operated.
At present, the pump type shotgun of domestic production is by artificial pulling and promote guard timber finishes ammunition feed, extracts and the operation principle of ejection.In pulling and promote circulation time of guard timber, just can finish unblank, locking, can only realize single shot.Can lose a lot of favorable opportunities during hunting, influence goal.
The purpose of this utility model provides the semi-automatic shotgun of a kind of improved gas operated, and it can finish the shotgun of continuous fire effectively.
The semi-automatic shotgun of the utility model gas operated, comprise the gun barrel combination, the guard timber combination, the casing combination, percussion support combination and gun stock combination, it is characterized in that below, the gun barrel middle part cylinder body that is fixed on the gun barrel combination is sleeved on the magazine of casing combination, sealing ring is housed between magazine external diameter and the cylinder diameter successively, inner carrier and outer piston, be in the elasticity of opening ring-type, outer piston male and female face closed assembly is integral, the binding site of gun barrel and cylinder body is parallel with the gun barrel center line has two gas ports, be communicated with gun barrel inner chamber and annular cylinder inner chamber, gas port and gun barrel center line inclination angle are the 26-38 degree.The gas port diameter is 1.5-3mm.Safety button and the safety button shift fork of one end hinge joint on the same axle of percussion support is housed in the conveyer medial launder of percussion support in conjunction with the front portion.
The utility model since gun barrel parallel with the binding site of cylinder body have two gas ports, it is many that number is sent out in this rifle shooting, can realize auto-unlocking, ejection, the last semi-automatic function of bullet and locking.
The utility model is provided by the following drawings and embodiment.
Fig. 1 is an overall structure view of the present utility model.
Fig. 2 is the assembled view of gun barrel combination of the present utility model and casing combination.
Fig. 3 is that percussion support of the present utility model is in conjunction with schematic diagram.
Most preferred embodiment of the present utility model is: this gun main body gun barrel is critical pieces in the full rifle in conjunction with 1 gun barrel 15, adopts structural alloy steel to make, and the bore roughness requires very high, and bore is No. 12.At the bridge-type muscle 14 of a beautiful decoration of gun barrel 15 external diameter welded top, and below gun barrel 15 middle parts, weld a cylinder body 10.Gun barrel 15 and the binding site of cylinder body 10 are parallel with gun barrel 15 center lines has two gas ports 16, is communicated with gun barrel 15 inner chambers and annular cylinder 10 inner chamber body.Gas port 16 is 30 degree with gun barrel 15 center line inclination angles, and gas port 16 diameters are 1.5-3mm, in processing and fabricating because assembly precision, form and position tolerance and hunt bullet filling gunpowder how much come to decide gas port 16 diameters.Sealing ring 11, inner carrier 12 and outer piston 13 are housed in the cylinder body 10.Insert casing in conjunction with the dress of the endoporus on 3 front ends at gun barrel in conjunction with 1 gun barrel, 15 rear ends, cylinder body 10 is sleeved on the magazine 30 simultaneously, and gun barrel 15 is parastate up and down with magazine 30, and guard timber is equipped with in conjunction with 2 in magazine 30 outsides, and magazine 30 front ends are with the fixing gun barrel 15 of special nut.When hunting after attack sends out, the pressure that in gun barrel 15 thoraxes, produces by powder burning gas, gas promotes inner carrier 12, outer piston 13 and the casing slide unit in conjunction with 3 through gas port 16, drive gunlock moves thereupon backward, shell, ejection are unblanked, are taken out in realization, promote casing in conjunction with 3 slide units by the energy that the kicker deposit is housed in the gun stock 5 again, and the drive gunlock travels forward, finish bullet and locking, thereby realize semi-automatic function.Casing is equipped with the percussion support in conjunction with 4 in conjunction with 3 bottoms, with two pins fixedly casing in conjunction with on 3, percussion support 44 usefulness aluminium alloys are made, the percussion support is equipped with conveyer 43 in conjunction with 4 front portions, and end hinge joint is housed in the medial launder at the safety button 42 and the safety button shift fork 41 of pulling the trigger on the support 44 same axles, conveyer 43 is by upwards swing, can deliver to the position of gun barrel 15 hunting bullet, gunlock travels forward, hunt bullet and push into thorax, it is to be connected together by cardan axle in the percussion support 44 that conversion endures 40, gunlock moves backward, can be pressed in conversion and endure 40 to lower swing, and conveyer 43 upwards lifts simultaneously, when upwards pressing safety button 42, can drive safety button shift fork 41 and swing backward.At this moment, conveyer 43 upwards lifts, and frees the very constraint of 40 pairs of gunlocks of conversion, and gunlock travels forward, and finishes block action.