CN210004868U - flame arrester for machine gun - Google Patents

Abstract

The utility model discloses a kind flame that disappears is effectual, the machine gun flame arrester of simple structure and easy processing, it is including connecting, a serial communication port, be equipped with the central shoulder hole that the axial runs through on the joint, central shoulder hole includes by back to preceding linkage segment and the flame arresting section that sets gradually, the diameter of central shoulder hole linkage segment is greater than the diameter of central shoulder hole flame arresting section, is equipped with the internal thread that is used for being connected with the barrel on the linkage segment of central shoulder hole, the flame arresting section of central shoulder hole is cylindricly, the diameter of central shoulder hole flame arresting section is 1.44 ~ 2.17 times of barrel bore, evenly be equipped with a plurality of exhaust ducts that communicate with central shoulder hole flame arresting section on the outer peripheral face of joint for gunpowder gas discharges.

Description

flame arrester for machine gun

Technical Field

The utility model belongs to machine gun flame suppression field relates to machine gun flame suppression ware.

Background

The existing flame arrester for the gun is disclosed as 201220636204.0, which is named as flame arresters for single-shot rifles and is hollow cylindrical, an inner hole at the rear end is a screw thread and is connected with a gun barrel, an inner hole at the front end is horn-shaped, the inner part is small and the outer part is large, and more than five side through holes are uniformly formed in the circumference.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems and providing machine gun flame arrester with good flame arresting effect, simple structure and easy processing.

machine gun flame arrester, including the joint, its characterized in that, be equipped with the central shoulder hole that the axial runs through on the joint, central shoulder hole includes linkage segment and the flame arresting section that sets gradually from back to front, and the diameter of central shoulder hole linkage segment is greater than the diameter of central shoulder hole flame arresting section, is equipped with the internal thread that is used for being connected with the barrel on the linkage segment of central shoulder hole, and the flame arresting section of central shoulder hole is cylindric, and the diameter of central shoulder hole flame arresting section is 1.44 ~ 2.17 times of barrel bore, evenly be equipped with a plurality of exhaust ducts that communicate with central shoulder hole flame arresting section on the outer peripheral face of joint for gunpowder gas is discharged.

Preferably, the exhaust groove is a long V-shaped groove and is used for fully mixing and burning gunpowder gas and oxygen.

Preferably, the number of the exhaust grooves is five, and the five exhaust grooves are annularly and uniformly arranged on the outer peripheral surface of the joint.

Preferably, a semicircular groove is formed in the outer peripheral surface of the rear end of the joint and used for being matched with a clamping pin on the gun barrel to form circumferential positioning of the joint.

Compared with the prior art, the utility model discloses there is following beneficial effect: the utility model discloses machine gun flame arrester is including connecting, and the flame arresting section that connects central shoulder hole is cylindric, and it is processed more easily, has reduced manufacturing cost, and if the flame arresting section diameter of central shoulder hole is little, then the air current inflation is insufficient, and flame arresting effect is poor, if the flame arresting section diameter of central shoulder hole is little to be close with the barrel bore, then the actual non-function of flame arrester, if the flame arresting section diameter of central shoulder hole is big, then the air current in the flame arrester can be said the inflation, reach the effect of flame arresting, nevertheless too big will arouse the sudden expansion of air current again, form the shock wave, arouse strong fire light on the contrary, the utility model discloses in, the diameter of central shoulder hole flame arresting section is 1.44 ~ 2.17 times of bore, it can gain better flame arresting effect, in addition, the utility model has the advantages of simple structure, convenient to carry, service nature is good.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is a schematic perspective view of the present invention;

fig. 4 is a schematic view of the connection structure of the present invention and the gun barrel.

Reference numerals

1 is a joint, 11 is a central stepped hole, 111 is a connecting section of the central stepped hole, 112 is a flame extinguishing section of the central stepped hole, 113 is an internal thread, 12 is an exhaust groove, 13 is a semicircular groove, 2 is a gun barrel, and 3 is a bayonet lock.

Detailed Description

Embodiments of the present invention are described in further detail below in with reference to the drawings.

In the present embodiment, the terms "upper", "lower", "left", "right", "front", "rear", "upper end", "lower end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, but do not indicate or imply that the designated device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-4, embodiments of the machine gun flame arrester include a joint 1, a central stepped hole 11 axially penetrating is arranged on the joint 1, the central stepped hole 11 includes a connecting section 111 and a flame arresting section 112 sequentially arranged from back to front, the diameter of the connecting section 111 of the central stepped hole is larger than that of the flame arresting section 112 of the central stepped hole, an internal thread 113 for connecting with a gun barrel 2 is arranged on the connecting section 111 of the central stepped hole, the flame arresting section 112 of the central stepped hole is cylindrical, the diameter of the flame arresting section 112 of the central stepped hole is 1.44-2.17 of the caliber of the gun barrel 2, and a plurality of exhaust grooves 12 communicated with the flame arresting section 112 of the central stepped hole are uniformly arranged on the outer circumferential surface of the joint 1 for exhausting gunpowder gas.

The exhaust groove 12 is a long V-shaped groove and is used for fully mixing and burning gunpowder gas and oxygen.

The number of the exhaust grooves 12 is five, and the five exhaust grooves 12 are uniformly arranged on the outer peripheral surface of the joint 1 in a ring shape.

The outer peripheral surface of the rear end of the joint 1 is provided with a semicircular groove 13 which is used for being matched with a bayonet lock on the gun barrel 2 to form circumferential positioning of the joint 1.

The working process is as follows:

the internal thread 113 of the joint 1 is sleeved into the thread of the gun barrel 2, the semicircular groove 13 on the peripheral surface of the rear end of the joint 1 is sleeved into the bayonet 3, after the shot is ejected out, the time of gunpowder gas flowing out of a gun muzzle is prolonged through the long hole channel of the flame-extinguishing section 112 of the central stepped hole of the joint 1, the gunpowder gas and oxygen are fully mixed and fully combusted through the five long V-shaped exhaust grooves 12, the flame generated by the gunpowder gas at the gun muzzle is reduced, meanwhile, the gunpowder gas flows and expands through the flame-extinguishing section 112 of the central stepped hole of the joint 1, the flow speed and the pressure are reduced through the exhaust grooves 12 on the joint 1, the pressure difference between the gunpowder gas and the atmospheric.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (4)

1. The utility model provides a kind of machine gun flame arrester, including connecting, its characterized in that, be equipped with the central shoulder hole that the axial runs through on the joint, central shoulder hole includes linkage segment and the flame arresting section that sets gradually by back to preceding, and the diameter of central shoulder hole linkage segment is greater than the diameter of central shoulder hole flame arresting section, is equipped with the internal thread that is used for being connected with the barrel on the linkage segment of central shoulder hole, and the flame arresting section of central shoulder hole is cylindricly, and the diameter of central shoulder hole flame arresting section is 1.44 ~ 2.17 times of barrel bore, evenly be equipped with a plurality of exhaust ducts that communicate with central shoulder hole flame arresting section on the outer peripheral face of joint for gunpowder gas is discharged.
2. 2. The machine gun flame arrester as claimed in claim 1, wherein the exhaust groove is a long V-shaped groove for fully mixing and burning gunpowder gas and oxygen.
3. 3. The machine gun flame arrester of claim 1, wherein the number of the exhaust grooves is five, and the five exhaust grooves are annularly and uniformly arranged on the outer circumferential surface of the joint.
4. 4. The machine gun flame arrester of claim 1 wherein the rear end of the connector has a semi-circular groove on its outer circumference for mating with a bayonet on the barrel to provide circumferential positioning of the connector.

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