阅读说明：本技术 一种枪械用消音器的接口装置 (Interface arrangement of silencer for firearms ) 是由 田瑜 郑桂都 熊长林 陈华荣 王飞 刘跃东 开友叶 于 2021-10-13 设计创作，主要内容包括：本发明公开了一种枪械用消音器的接口装置,用于实现消音器与枪械的快速安装。包括接口本体、锁紧套,接口本体上设有多个径向孔,各径向孔内分别间隙配合有钢球,接口本体的一端设有限位盘,接口本体的另一端设有接口螺纹,所述锁紧套间隙配合在接口本体上,所述锁紧套的一端轴向定位于限位盘,锁紧套的另一端轴向定位于位于锁紧套上卡接的挡圈,所述锁紧套的内周面上对应各钢球分别沿周向设有渐开线状的锁紧槽,用于限定钢球在径向孔内的位置；所述锁紧套的端面上沿轴向设有安装孔,所述安装孔内从内到外依次设有定位簧、定位头,所述限位盘上设有多个球形凹坑与定位头配合,用于弹性锁定锁紧套的周向位置,进而保持钢球的位置。(The invention discloses an interface device of a silencer for a firearm, which is used for realizing the quick installation of the silencer and the firearm. The connector comprises a connector body and a locking sleeve, wherein a plurality of radial holes are formed in the connector body, steel balls are respectively in clearance fit in the radial holes, a limiting disc is arranged at one end of the connector body, interface threads are arranged at the other end of the connector body, the locking sleeve is in clearance fit on the connector body, one end of the locking sleeve is axially positioned on the limiting disc, the other end of the locking sleeve is axially positioned on a retaining ring clamped on the locking sleeve, and involute-shaped locking grooves are respectively formed in the inner circumferential surface of the locking sleeve corresponding to the steel balls and used for limiting the positions of the steel balls in the radial holes; the end face of the locking sleeve is provided with a mounting hole along the axial direction, a positioning spring and a positioning head are sequentially arranged in the mounting hole from inside to outside, and a plurality of spherical pits are arranged on the limiting disc and matched with the positioning head for elastically locking the circumferential position of the locking sleeve and further keeping the position of the steel ball.)

1. An interface device of a muffler for a firearm, characterized in that:

the connector comprises a cylindrical connector body and a locking sleeve, wherein a plurality of radial holes are formed in the connector body and are uniformly distributed along the circumferential direction of the connector body, steel balls are in clearance fit in the radial holes respectively, the diameter of each steel ball is larger than the wall thickness of the locking sleeve, a limiting disc is arranged at one end of the connector body, a connector thread is arranged at the other end of the connector body, and the connector thread is used for being in threaded connection with a silencer;

the locking sleeve is in clearance fit with the interface body and is positioned between the limiting disc and the interface thread, one end of the locking sleeve is axially positioned on the limiting disc, the other end of the locking sleeve is axially positioned on the retaining ring clamped on the locking sleeve, locking grooves in an involute shape are respectively arranged on the inner circumferential surface of the locking sleeve corresponding to the steel balls along the circumferential direction and used for limiting the positions of the steel balls in radial holes, when the steel balls are limited at the small-diameter end of the locking grooves, the steel balls clamp the V-shaped grooves of the muzzle device, when the steel balls are limited at the large-diameter end of the locking grooves, the steel balls are separated from the V-shaped grooves of the muzzle device, and the clamping state is released;

the end face of the locking sleeve is provided with a mounting hole along the axial direction, a positioning spring and a positioning head are sequentially arranged in the mounting hole from inside to outside, and a plurality of spherical pits are arranged on the limiting disc and matched with the positioning head for elastically locking the circumferential position of the locking sleeve and further keeping the position of the steel ball.

2. The interface of a firearm suppressor according to claim 1, wherein: the limiting disc is provided with fan-shaped grooves, the spherical pits are uniformly distributed in the fan-shaped grooves, and the two end walls of the fan-shaped grooves are used for limiting the movement limit positions of the positioning heads.

3. The interface of a firearm suppressor according to claim 1, wherein: the retainer ring is clamped in a retainer ring assembling groove formed in the interface body.

4. The interface of a firearm suppressor according to claim 1, wherein: the interface body is provided with a shape locking cavity for matching and positioning with the rifling device.

Technical Field

The invention relates to the technical field of firearms, in particular to an interface device of a silencer for firearms.

Background

The automatic weapon silencer is used as a device for reducing muzzle noise, smoke and flame. When the muffler is required to be installed, the rapid installation can be realized, the fighting efficiency is improved, and the hidden fighting device has important significance for realizing hidden fighting.

At present, most firearms and silencers are installed by adopting threads to be connected, the time consumption for installation and disassembly is long, tools are required to pre-tighten the threads, otherwise, the silencers are loosened in use, and the service performance of the firearms is poor. Therefore, an interface with good service performance, simple structure, high reliability and strong universality is urgently needed to meet the installation requirement of the firearm silencer.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an interface device of a silencer for firearms, which is used for realizing the quick installation of the silencer and the firearms, has the characteristic of universality and can be respectively installed with different types of silencers and cylindrical firearms muzzles with V-shaped grooves. The device has the advantages of simple structure, concise appearance, simple and convenient operation and high generalization degree.

The purpose of the invention is realized as follows:

an interface device of a silencer for firearms,

the connector comprises a cylindrical connector body and a locking sleeve, wherein a plurality of radial holes are formed in the connector body and are uniformly distributed along the circumferential direction of the connector body, steel balls are in clearance fit in the radial holes respectively, the diameter of each steel ball is larger than the wall thickness of the locking sleeve, a limiting disc is arranged at one end of the connector body, a connector thread is arranged at the other end of the connector body, and the connector thread is used for being in threaded connection with a silencer;

the locking sleeve is in clearance fit with the interface body and is positioned between the limiting disc and the interface thread, one end of the locking sleeve is axially positioned on the limiting disc, the other end of the locking sleeve is axially positioned on the retaining ring clamped on the locking sleeve, locking grooves in an involute shape are respectively arranged on the inner circumferential surface of the locking sleeve corresponding to the steel balls along the circumferential direction and used for limiting the positions of the steel balls in radial holes, when the steel balls are limited at the small-diameter end of the locking grooves, the steel balls clamp the V-shaped grooves of the muzzle device, when the steel balls are limited at the large-diameter end of the locking grooves, the steel balls are separated from the V-shaped grooves of the muzzle device, and the clamping state is released;

the end face of the locking sleeve is provided with a mounting hole along the axial direction, a positioning sleeve, a positioning spring and a positioning head are sequentially arranged in the mounting hole from inside to outside, and a plurality of spherical pits are arranged on the limiting disc and matched with the positioning head for elastically locking the circumferential position of the locking sleeve and further keeping the position of the steel ball.

Preferably, the limiting disc is provided with sector grooves, the spherical pits are uniformly distributed in the sector grooves, and two end walls of the sector grooves are used for limiting the movement limit positions of the positioning head.

Preferably, the retainer ring is clamped in a retainer ring assembling groove arranged on the interface body.

Preferably, the interface body is provided with a shape locking cavity for matching and positioning with the rifling device.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

1. the invention adopts a steel ball involute radial locking mechanism which has good self-locking function, can bear the vibration of firearms in the shooting process, and has good interface rigidity and firm locking.

2. The locking looseness problem is caused by the fact that a positioning head, a positioning spring and a multi-position spherical pit positioning mechanism are matched with an involute compensating bore device and an interface device to produce tolerance.

3. The invention adopts a concentric outer sleeve type locking sleeve structure, has the characteristics of easy holding and simple operation, and is particularly suitable for connecting a muzzle device and a cylindrical silencer.

4. The locking mark has the advantages of easy understanding and misoperation prevention.

5. The invention adopts the screw thread to connect with the main body of the silencer, the design of the main body of the silencer does not need to consider the interface of the silencer, only the screw interface needs to be reserved, and the universality of the interface device is good.

Drawings

FIG. 1 is a schematic structural diagram of the present invention

FIG. 2 is an exploded view of the interface device of the present invention;

FIG. 3 is a schematic view of the release-lock state of the interface device of the present invention;

fig. 4 is a schematic diagram of a limiting structure of the locking sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, one embodiment of an interface device of a firearm silencer comprises an interface body 1, a steel ball 2, a locking sleeve 3, a positioning head 4, a positioning spring 5, a retainer ring 6, a chamber opening device 7, interface threads 8, fan-shaped grooves 9 and spherical pits 10. The steel ball is arranged in a radial hole of the connector body 2; the positioning head 4 and the positioning spring 5 are arranged in a mounting hole on the locking sleeve, and the positioning spring 5 is compressed under the action of the interface body 1, the locking sleeve 3 and the check ring 6; the positioning head 4 is attached to the interface body under the action of the positioning spring 5; the positioning head 4 can move in a fan-shaped groove of the connector body; the retainer ring 6 is clamped in the retainer ring assembling groove of the interface body 1; the locking sleeve 3 rotates around the axis of the interface body under the action of the cylindrical surface of the interface body and the end surface of the retainer ring 6.

In order to ensure that the interface body can be sleeved on the muzzle device and the gap is not too large, the interface body and the muzzle device are in precise small-gap fit; the roughness requirements of the inner hole of the interface body and the surface roughness of the outer circle of the rifling device are respectively Ra1.6 and Ra0.8.

In order to facilitate the disassembly and assembly operation, the connector body is provided with a shape locking cavity, so that the connector body and the bore device do not rotate mutually when the locking sleeve rotates.

In order to ensure that the steel balls can move in the radial direction of the connector body, radial holes are formed in the connector body, and the steel balls and the hole walls are in close clearance precise fit.

In order to ensure that the steel ball moves along the radial direction of the connector body under the action of the locking sleeve, an involute locking groove is formed in the locking sleeve and used for controlling the movement of the steel ball.

In order to ensure that the locking sleeve works at the correct position, the connector body is provided with a fan-shaped groove, the locking sleeve is provided with a positioning sleeve, the positioning sleeve protrudes out of the locking sleeve, the locking sleeve is matched with the two end walls of the fan-shaped groove and used for limiting the movement limit position of the positioning head, controlling the locking sleeve to rotate within a certain angle and protecting the positioning head.

In order to ensure that the interface device is not loosened after being connected, the interface body is provided with a plurality of spherical pits, and the locking sleeve is provided with a positioning head and a positioning spring for compensating locking looseness caused by manufacturing deviation.

The working process is as follows:

the silencer main body is connected to the interface thread of the interface device through the thread, and the thread is pre-tightened. One side of the interface device of the silencer is sleeved on the chamber port device and rotates properly after being sleeved, so that the chamber port device is matched with a shape locking cavity on the interface device, the silencer continues to be in place towards the inner sleeve, and the steel ball shrinks into the circumference of the inner hole of the interface body under the action of the excircle of the chamber port device in the process of being sleeved on the interface device. Rotating the locking sleeve in the 'tight' direction indicated by an arrow until the locking sleeve is fixed, wherein in the rotating process, a steel ball in the interface body moves towards the inside of the circumference under the action of an involute on the locking sleeve until the V-shaped groove of the hearth opening clamping device is clamped, so that the assembly clearance is eliminated, the clearance cannot be eliminated completely due to the existence of manufacturing tolerance of various parts, and the positioning sleeve is provided with the involute with enough length so that the positioning sleeve can rotate fully; enough spherical grooves are formed in the connector body, so that the positioning head can reliably fall into any positioning groove, and the requirements of eliminating assembly gaps and rotation of the locking sleeve during shooting use are met.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.