RU226067U1 - DEVICE FOR ATTACHING A SILENCER OR SOUND MODERATOR TO THE MUZZLE BRAKE-COMPENATOR OF A FIREARM - Google Patents

Abstract

The utility model relates to the field of firearms, namely to quick-release attachment points for weapons. A device for attaching a silencer or sound moderator to a muzzle brake-compensator of a firearm, consisting of a base, nut, locking button, spring, axial pin, spring pin, limiter pin, interconnected into a single structure. The technical result is the reliability of the connection. 10 ill.

Description

The utility model relates to the field of firearms, namely to quick-release attachment points for weapons.

A device for installing a firearm silencer is known from the prior art (patent US 2014237881 from 2014-08-28), which contains a device body, a clamping element connected to the device body, a muzzle element adapted for connection with the muzzle, a muzzle element forming the first a threaded portion; and a device body having a second threaded portion mateable with the first threaded portion such that the device body is rotatable and movable between an attached position and a detached position. The muzzle element has an engaging surface, the clamping element includes at least a movable engaging element aligned with the engaging surface when the device is in an attached position, and the clamping element is operably engaged with the engaging element to move it between a locked position in which the engaging element is pressed. to the engaging surface to prevent the device from moving to the attached position, and an unlocked position to allow the device to be detached. The disadvantage of this device is the manufacturing accuracy. If this unit is performed with insufficient precision, then the DTK and muffler are misaligned. This happens when the DTK or the base of the quick-release unit has very large “play” tolerances, or the eccentricity on the nut does not match, or with very small tolerances, when the DTK fits very tightly, the effect of a “ground-in lid” is obtained - when carbon deposits clog into the seat, jamming occurs and there is no way to remove the muffler from the DTK.

The closest in technical essence is a choke tube for a firearm (RU 170219, published on April 18, 2017 Bulletin No. 11), which includes a body having a hollow oblong shape and an internal thread for attaching to the muzzle of a firearm barrel, a toothed ring placed near the rear end of the body and serving for connection with the flange of the additional muzzle device, an external thread located on the outer surface of the body between the toothed ring and the front end of the body and intended for connection with the flange of the additional muzzle device. The housing additionally has a centering unit, which has a predominantly conical shape, expanding towards the rear end of the housing, and the centering unit is located on the outside of the housing between the external thread and the front end of the housing. The disadvantage of this device is the accuracy of the workpieces. The internal part and cover of the muffler is centered on the thread and this requires an accurate workpiece; in this case, a “seamless pipe” allows you to achieve the necessary accuracy. Since the entire alignment of the muffler is its internal part, if it moves or bends, the muffler will be crooked.

The problem that the utility model is aimed at solving is the development of a device that allows you to quickly install and remove the device at the muzzle.

This problem is solved due to the fact that a device for attaching a silencer or sound moderator to the muzzle brake-compensator of a firearm, consisting of a base, nut, locking button, spring, axial pin, spring pin, limiter pin, interconnected into a single structure, wherein the base is made with a hole in the central part, at the entrance to which there is a conical landing, which is an extension in the form of a cone, which is the mating surface with the muzzle brake-compensator, with a catcher located on the edge, which is a fixed protrusion with a threaded part and a toothed surface on the side of the nut, which has a single offset along the eccentricity relative to the central axis of the base, while the location of the eccentricity is made opposite the catcher with threads for installing the separator, the nut is made with a hole in the central part with a corresponding eccentricity relative to the base and with a cutout for installing a button - the lock on the side opposite to the eccentricity, while inside the nut there is a groove for installing the return spring of the lock button, and there are also two holes on the surface and one hole at the end of the nut, while the nut is screwed onto the base and secured with a spring pin, which is in position " open" rests on a stop pin welded to the base, the lock button is made of a semicircular shape, repeating part of a circle, with corrugation on the upper surface, with an arc-shaped recess for placing a spring on the inside and a tooth, which is a stop and interacts with the toothed surface of the base , the spring is made in the shape of an arc with bends along the edges in different directions with a right angle for installation in the hole and for mating with the lock button, the axial pin and the spring pin are installed in the corresponding holes in the nut.

The technical result achieved by the utility model is the reliability of the connection provided by the design.

The fastening device is designed to attach the sound moderator to the muzzle brake-compensator (DTC).

The essence of the utility model is illustrated by drawings, which show:

in fig. 1 general view of a body-mounted device with a sound moderator and a muzzle brake-compensator;

in fig. 2 explosion diagram of a muzzle device with a sound moderator and a muzzle brake-compensator;

in fig. 3 explosion diagram of the quick-release device;

in fig. 4 view of the device with a sound moderator and a muzzle brake-compensator in the A-A section;

in fig. 5. enlarged fragment B;

in fig. 6. general view of the device with a sound moderator and a muzzle brake-compensator;

in fig. 7 view of the device in section D-D;

in fig. 8. enlarged fragment E;

in fig. 9 - view of the quick-release device mechanism in open and closed positions;

in fig. 10 - general view of the nut.

The muzzle device includes a sound moderator housing 1 with a front cover 2, a quick-release device and a muzzle brake-compensator 3.

The quick-release device consists of: base 4, nut 5, locking button 6, spring 7, axial pin 8, spring pin 9, stop pin 10.

The base 4 of the quick-release coupling device (hereinafter referred to as the base of the quick-release coupling) is a solid part made of stainless steel, AISI 304 (12X18H10), having a hole with a diameter of 23.15 mm in the central part. At the entrance to this hole there is a conical fitting 11, which is an expansion in the form of a cone from a diameter of 23.15 mm to a diameter of 27 mm at an angle of 20°, which is the mating surface with the DTK / Flame arrestor, and the DTK / Flame arrestor catcher 12 at the edge of the device. The catcher is located on the base of the quick-release device and is a fixed rectangular protrusion with rounded chamfers at the base, the lower surface facing the DTK has the shape of a semicircle. The catcher acts as a guide when the DTK is inserted into the base of the quick-release device. It also functions as a lock so that the DTK does not scroll left and right on the muffler and is always put on the same way. The base of the quick release coupling 4 on the nut side has a threaded part M32x1.5 and a toothed surface 13, which has a single eccentricity offset relative to the central axis of the quick-release device, i.e. the axis of rotation 14 of the nut is offset by a distance H=1.5 mm from the central axis 15 of the base of the coupling system (Fig. 9). The location of the eccentricity should be opposite the catcher 12 DTK / Flame arrestor. Nut 5 is screwed onto the base of the quick-release device along the M32x1.5 thread, then the nut is adjusted (rotated along the thread) to the “open” position and fixed with a spring pin 9. This spring pin rests in the “open” position on the stop pin 10, which is welded to the base 4 of the quick release device. The toothed surface is a ratcheting mechanism that creates a sound when the nut is rotated towards the “closed” position. The ratchet only works when the lock button is not pressed; when the lock button is pressed, the ratchet does not work. This is one of the indications that the quick release device is closed. There is also an arrow on the nut that shows in which direction the nut should be turned and the inscription “OPEN”. To open the quick release device, you must press the lock button 6, and the sound of the ratcheting mechanism will not be heard when the nut is rotated to the “Open” position.

At the base 4 of the quick-release device on the inner part (on the side of the connection with the DTK) there is an M28x1 thread intended for installing the entire muffler structure. The assembled separator (middle) is screwed onto this thread, and the housing is placed on top, resting it against the base for further laser welding. This results in a durable, non-demountable structure.

Nut 5 is a solid part made of titanium grade VT 1-0, which has a hole in the central part with a corresponding eccentricity relative to the base 4. When the eccentricities on the nut and on the base coincide, the “Open” position is obtained (Fig. 9) and the central hole 16 has access for installation inside the DTK / Flame arrestor. When the nut is rotated clockwise (the nut is tightened), the coupling mechanism closes to the “Closed” position (Fig. 9). The nut also has a cutout 17 on the opposite side to the eccentricity for installing a locking button. There is a groove inside the nut for installing the return spring 7 of the locking button. The nut also has two holes 18 and 19 on the surface and one hole at the end 20 (Fig. 9). Hole 18 is intended for installing the limiter stopper. Hole 19 is intended for installing the retainer spring. Hole 20 is intended for installing the axial pin. Hole 17 is intended for installing a locking button.

The locking button 6 is a single piece, made of stainless steel AISI 304 (12Х18Н10) or 12Х18Н10Т. The locking button is an uneven trapezoid with smoothed corners, at the base it has a semicircular shape repeating part of the circle for a tight fit to the quick-release coupling assembly. There is a notch on the upper surface of the locking button to prevent slipping of the fingers, which happens when dirty or when snow and water stick. On the opposite side at the base there is a groove - an arc-shaped recess for positioning the spring and preventing movement on the locking button. The locking button on the inner part has a tooth, which is a stop in the operation of the fixation unit and interacts with the toothed 13 surface of the base of the quick-release device under the influence of the spring force 7. On the outer part of the locking button there is a corrugation, which is an anti-slip element for interacting with the user’s hand.

Spring 7 serves to act on the locking button and creates a force on the toothed surface that prevents the nut from unscrewing spontaneously. The spring is made in the shape of an arc and has bends at the edges in different directions with a right angle, for installation in hole 19 and for mating with the lock button; the bend in this case is necessary for free sliding inside the lock button when it is pressed. The axial pin 8 is installed in the nut 5, and is the axis of rotation of the locking button 6, has dimensions of 2×12 mm, the material of manufacture is stainless steel.

Spring pin 9 has a size of 2×6 mm, is installed in a nut in hole 18, the material of manufacture is stainless steel. When installed in a nut, it simultaneously acts as a travel limiter and locks the position of the nut in the “open” position.

The quick release device is assembled as follows.

A locking button 6 is inserted into hole 17, intended for installing a locking button. The axial pin 8 is threaded through hole 20 in the nut and locking button. After which the hole is blocked by punching and prevents the pin from falling out. The spring is inserted inside the nut. One end of the spring must enter hole 19; this eliminates the possibility of free rotation of the spring inside the nut. The assembled nut is screwed onto base 4 clockwise until it stops. The spring pin 9 is installed in hole 18 on the edge of the nut. After this, the device can be considered non-separable. It will not be possible to unscrew the nut from the base.

After assembling the base with the nut by twisting them along the threaded part, a single hole is obtained from the eccentricities in the “Open” position, which is the mounting position of the DTK.

The DTK is fixed by installing it in the base and turning the nut clockwise. Simultaneously with the rotation of the nut, the locking button slides along the toothed surface of the base, thereby forming a ratcheting mechanism that provides free rotational movement in only one direction, blocking movement in the opposite direction. Due to the discrepancy between the eccentricities of the nut and the base, the DTK is fixed in the upper part by blocking the holes by the value of the eccentricity size. The sound moderator and quick-release mechanism are a single welded structure. The DTK is tightly screwed onto the machine and secured with a standard (for the machine) latch. Then a sound moderator is put on the DTK, the nut of which is set to the “open” position, the catcher falls into the groove on the DTK and the moderator is put on until the end of the DTK, so that the “skirt” of the DTK and the nut are level or slightly deeper, and turn the nut in the opposite direction of the inscription OPEN /OPEN.

The advantage of the device is its very reliable design (it is technically simple) and the ability to select design play, which will inevitably appear with a large number of shots. This opportunity is provided by the nut that clamps the DTK. This unit is lighter than its analogues, visually attractive, easy to use, locking occurs in half a turn and there is no need to clamp, press, or expose anything. This design uses titanium (nut), which minimizes weight, does not affect the efficiency of the muffler, and also, due to differences in materials, the effect of biting the thread when the nut wedges on the thread is avoided.

Claims (1)

A device for attaching a muffler or sound moderator to a muzzle brake-compensator of a firearm, consisting of a base, a nut, a locking button, a spring, an axial pin, a spring pin, a stop pin, interconnected into a single structure, wherein the base is made with a hole in the central part, at the entrance to which there is a conical landing, which is an expansion in the form of a cone, which is the mating surface with the muzzle brake-compensator, with a catcher located on the edge, which is a fixed protrusion, with a threaded part and a toothed surface on the nut side, having a single offset in eccentricity relative to the central axis of the base, while the location of the eccentricity is made opposite the catcher with a thread for installing the separator, the nut is made with a hole in the central part with a corresponding eccentricity in relation to the base and with a cutout for installing a locking button on the side opposite to the eccentricity, In this case, inside the nut there is a groove for installing the return spring of the locking button, and there are also two holes on the surface and one hole at the end of the nut, while the nut is screwed onto the base and secured with a spring pin, which in the “open” position rests against the stop pin , welded to the base, the locking button is made of a semicircular shape, repeating part of a circle, with corrugation on the upper surface, with an arc-shaped recess for the location of the spring on the inside and a tooth, which is a stop and interacts with the toothed surface of the base, the spring is made in the shape of an arc with bends along the edges in different directions with a right angle for installation in the hole and for mating with the locking button, the axial pin and the spring pin are installed in the corresponding holes in the nut.