CN111551076A

CN111551076A - Quick spacing locking structure

Info

Publication number: CN111551076A
Application number: CN202010510409.3A
Authority: CN
Inventors: 朱开钰; 黄光富; 王冲; 刘科言; 张言; 罗波; 蔡崧; 宋维东; 黄�俊; 叶云凯; 张渝; 龙建华; 李小平; 陈�胜; 雷敬
Original assignee: Chongqing Jianshe Industry Group Co Ltd
Current assignee: Chongqing Jianshe Industry Group Co Ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-08-18

Abstract

The invention discloses a rapid limiting and locking structure which comprises a base, a dovetail seat, a limiting shaft and a handle, wherein the upper part of the base is provided with a notch; the swallow tail seat is arranged above the base and is in sliding connection with the base, the tail part is provided with a longitudinal groove, one side of the tail part is provided with a cylindrical part, the end surface of the cylindrical part is provided with a spiral surface, the limiting shaft is sleeved on the tail part of the swallow tail seat, one end of the limiting shaft is in threaded connection with the handle, one side of the limiting shaft is provided with a notch, one side of the handle is provided with a boss which is matched with the spiral surface of the swallow tail seat, when the handle is in a natural state, the handle is in a vertical state, the boss of the handle is positioned at the lowest position of the spiral surface, the surface of the limiting shaft cylinder is separated from the notch of the base, the dovetail seat can slide and separate from the base, when the limiting locking is needed, the handle is rotated, the boss of the handle climbs from the lower position of the spiral surface to the high position of the spiral surface to lock the dovetail seat and the base, and after the handle is rotated by 90 degrees, the boss of the handle is separated from the helicoid, and the limiting shaft cylindrical surface is superposed with the notch of the base to limit the sliding of the dovetail seat and the base.

Description

Quick spacing locking structure

Technical Field

The invention relates to the technical field of firearms, in particular to a quick limiting and locking structure.

Background

In modern firearm structural design, the situation that both need spacing and need locking often can be met, for example the connection of firearm accessories such as hand protector, sight glass constellation and barrel part, and traditional solution generally adopts screw locking spacing, and it is loaded down with trivial details to decompose the combination, and man-machine work efficiency is poor.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a quick limiting and locking structure which can quickly realize the installation of firearm accessories and firearms, is convenient to operate, can quickly disassemble, combine, lock and limit, and has better man-machine effect.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a quick limiting and locking structure comprises a base, a dovetail seat, a limiting shaft and a handle, wherein the base is provided with a gun barrel part, and the upper part of the base is provided with a notch along the radial direction of the gun barrel part; the gun-shaped part is characterized in that a gun accessory is arranged on the dovetail seat, the gun-shaped part is arranged above the base and is in sliding connection with the base, the tail of the dovetail seat is provided with a longitudinal groove used for locking the base by the dovetail seat, the tail of the dovetail seat is provided with a cylindrical part along one radial side of the barrel part, the end surface of the cylindrical part is provided with a spiral surface, the spiral surface is arranged in a diagonal manner, the limiting shaft is sleeved on the tail of the dovetail seat and is arranged perpendicular to the barrel part, one end of the limiting shaft extends out of the dovetail seat and is in threaded connection with a handle, one axial side of the limiting shaft is provided with a notch, one side of the handle close to the dovetail seat is provided with a boss matched with the spiral surface of the dovetail seat, the handle is radially provided with a lock pin used for stopping rotation when the handle is connected with the limiting shaft, the handle is in a natural state and is in a, when the limit locking is needed, the handle is rotated, the handle boss is climbed from the lower part of the helicoid to the high part of the helicoid to extrude the dovetail seat to the middle part to be locked with the base, after the handle rotates by 90 degrees, the handle boss is separated from the helicoid, the limit shaft cylinder surface is buckled with the notch of the base at the moment to limit the sliding of the dovetail seat and the base, and the limit clamping and the limit limiting are realized

Preferably, the two spiral surfaces are arranged and respectively occupy a quarter of arc of the cylindrical part, and the cylindrical part is provided with a V-shaped groove along the axial direction of the gun barrel part.

Preferably, the length of the limiting shaft notch is larger than that of the base notch, so that the dovetail seat can slide and separate from the base after the limiting shaft cylindrical surface is separated from the base notch.

Preferably, base upper portion is equipped with the forked tail interface along barrel part axial, and the dovetail has been seted up along barrel part axial to the swallow tail seat bottom, and the base passes through the cooperation sliding connection of forked tail interface and dovetail with the swallow tail seat.

Preferably, the notch is a semicircular groove and penetrates in the width direction of the dovetail joint.

Preferably, the longitudinal groove of the dovetail groove tail part is communicated with the dovetail groove.

Preferably, the handle boss is of a V-shaped structure, two bosses are symmetrically arranged along the radial direction of the barrel part, and the bosses are matched with the V-shaped groove of the cylindrical part of the dovetail seat after being limited and locked to prevent the base and the dovetail seat from loosening.

The invention has the beneficial effects that:

1. the base is provided with the barrel component, the dovetail seat is provided with the firearm accessory, the base is in sliding connection with the dovetail seat in a dovetail matching mode, the dovetail seat is internally sleeved with the limiting shaft, the limiting shaft is connected with the handle, the cylindrical part of the dovetail seat is provided with two helical surfaces which are arranged diagonally, one side of the handle is provided with the boss, and the dovetail seat is locked or separated from the base in a sliding manner through the matching of the boss of the handle and the helical surfaces;

2. the limiting shaft is provided with a notch, when the base is locked with the dovetail seat, the cylindrical surface of the limiting shaft is overlapped with the notch of the base to realize clamping and limiting, when the locking and limiting are required to be relieved, the handle is pulled to drive the limiting shaft to rotate, the cylindrical surface of the limiting shaft is separated from the notch of the base, and at the moment, a yielding space is formed between the notch of the limiting shaft and the notch of the base, so that the dovetail seat can be quickly separated from the base;

3. the dovetail seat is provided with a V-shaped groove on the cylindrical part, the V-shaped groove is matched with the handle boss, and the handle boss is matched with the V-shaped groove of the cylindrical part after being separated from the spiral surface, so that the anti-loosening effect is achieved;

4. the operation is convenient, and the disassembly combination, the locking and the limiting of the firearm accessories and the firearm can be quickly realized;

5. the modular design is adopted, the layout is reasonable, the structure is novel, and no parts exist after the disassembly;

6. the man-machine efficiency is good, and the device can be widely applied to various types of limiting and locking occasions.

Drawings

FIG. 1 is a schematic structural view of a locked state of the present invention;

FIG. 2 is a schematic structural view of the disengaged state of the present invention;

FIG. 3 is a schematic view, partly in section, of the locked state of the invention;

FIG. 4 is a schematic view, partly in section, of the invention in a disengaged condition;

FIG. 5 is a schematic view of a dovetail seat;

FIG. 6 is a partial cross-sectional view of a dovetail block;

FIG. 7 is a schematic view of the handle;

FIG. 8 is a schematic structural view of a limiting shaft;

fig. 9 is a schematic structural view of the base.

Reference numerals

1. A dovetail seat; 2. a handle; 3. a lock pin; 4. a limiting shaft; 5. a base;

101. a longitudinal groove; 102. a cylindrical portion; 103. a helicoid; 104. a V-shaped groove; 105. a dovetail groove; 201. boss

401. A notch; 501. a notch; 502. a dovetail interface.

Detailed Description

The working principle and structure of the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

As shown in fig. 1 to 9, a quick limiting and locking structure includes a base 5, a dovetail seat 1, a limiting shaft 4 and a handle 2, wherein a barrel part (not shown) is mounted on the base 5, a dovetail interface 502 is provided on the upper portion of the base 5 along the axial direction of the barrel part, and a notch 501 is provided along the radial direction of the barrel part; the gun accessory is arranged on the dovetail seat 1 and is arranged above the base 5, the bottom of the dovetail seat 1 is provided with a dovetail groove 105 along the axial direction of a barrel part, the base 5 and the dovetail seat 1 are in matched sliding connection with the dovetail groove 105 through a dovetail interface 502, the tail of the dovetail seat 1 is provided with a longitudinal groove 101 for the dovetail seat 1 to lock the base 5, the tail of the dovetail seat is provided with a step hole along the radial direction of the barrel part, one side of the dovetail seat is provided with a cylindrical part 102, the end surface of the cylindrical part 102 is provided with a spiral surface 103 which is arranged in a diagonal line, a limiting shaft 4 is sleeved in the step hole at the tail of the dovetail seat 1 and is arranged vertical to the barrel part, one end of the limiting shaft 4 extends out of the dovetail seat 1 to be in threaded connection with the handle 2, the head of the limiting shaft 4 is provided with a straight groove, one side of the axial direction is milled to form a dovetail seat 401, one side of the handle 2 close to the, the handle is also provided with a lock pin 3 along the radial direction, and the lock pin 3 stops rotating.

In the present embodiment, as shown in fig. 5, two helical surfaces of the cylindrical portion 102 of the dovetail seat are arranged to occupy a quarter of an arc of the cylindrical portion 102, and the cylindrical portion 102 is provided with V-shaped grooves 104 along the axial direction of the barrel component.

As shown in fig. 7, in this embodiment, the two handle bosses 201 are of a V-shaped structure, and are symmetrically arranged along the radial direction of the barrel component, and after the position limiting and locking, the two handle bosses cooperate with the V-shaped groove 104 of the cylindrical portion of the dovetail seat to prevent the base 5 and the dovetail seat 1 from being loosened.

As shown in fig. 8 and 9, in order to ensure that the dovetail seat can slide away from the base after the limiting shaft cylindrical surface is separated from the base notch, the length of the limiting shaft notch 401 is greater than the length of the base notch 501. In this embodiment, the notch 501 of the base is a semicircular groove and penetrates in the width direction of the dovetail 502.

As shown in fig. 5, the longitudinal groove 101 at the tail of the dovetail groove is communicated with the dovetail groove 105, which is beneficial for the dovetail seat to lock or slide and separate with the base.

The working process of the invention is as follows:

the natural state is converted into a limiting locking state:

in a natural state, the handle is in a vertical state, the boss of the handle is positioned at the lowest position of the spiral surface, the handle is rotated clockwise, and the dovetail seat is extruded and deformed towards the middle by the boss of the handle in the process of climbing the spiral surface, so that the dovetail seat is locked with the base; after the handle rotates 90 degrees, the lug boss of the handle is separated from the spiral surface and is matched with the V-shaped groove of the cylindrical part, so that the anti-loosening effect is achieved; at the moment, the cylindrical surface of the limiting shaft is superposed with the semicircular groove on the base to limit the dovetail seat to slide forwards relative to the base, so that limiting and locking are realized;

the limiting locking state is converted into a natural state:

during spacing locking state, the handle is the horizontality, anticlockwise rotates the handle 90, and the dovetail seat kick-backs to natural state, and the face of cylinder of spacing axle breaks away from the half slot on the base, forms the space of stepping down between the breach of spacing axle and the base notch this moment, makes dovetail seat sliding separation on the base can be followed.

The limiting locking structure disclosed by the invention adopts a modular design, is reasonable in layout, novel in structure and good in man-machine effect, can quickly realize the decomposition and combination of the dovetail seat and the base, can quickly realize the decomposition and combination of the firearm accessories and the firearm, and can be widely applied to various limiting locking occasions.

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.

Claims

1. The utility model provides a quick spacing locking structure which characterized in that: the gun barrel component is mounted on the base, and a notch is formed in the upper portion of the base along the radial direction of the gun barrel component; the gun-shaped part is characterized in that a gun accessory is arranged on the dovetail seat, the gun-shaped part is arranged above the base and is in sliding connection with the base, the tail of the dovetail seat is provided with a longitudinal groove used for locking the base by the dovetail seat, the tail of the dovetail seat is provided with a cylindrical part along one radial side of the barrel part, the end surface of the cylindrical part is provided with a spiral surface, the spiral surface is arranged in a diagonal manner, the limiting shaft is sleeved on the tail of the dovetail seat and is arranged perpendicular to the barrel part, one end of the limiting shaft extends out of the dovetail seat and is in threaded connection with a handle, one axial side of the limiting shaft is provided with a notch, one side of the handle close to the dovetail seat is provided with a boss matched with the spiral surface of the dovetail seat, the handle is radially provided with a lock pin used for stopping rotation when the handle is connected with the limiting shaft, the handle is in a natural state and is in a, when needing spacing locking, twist grip, handle boss are by the helicoid low department to the helicoid eminence climbing with the forked tail seat to middle extrusion and base locking, and the handle is rotatory 90 backs, and the handle boss breaks away from the helicoid, spacing cylinder face and base notch coincide this moment, and the slip of restriction forked tail seat and base realizes pressing from both sides tightly spacing.

2. The quick limit locking structure according to claim 1, characterized in that: the two spiral surfaces are arranged and respectively occupy a quarter of arc of the cylindrical part, and a V-shaped groove is formed in the cylindrical part along the axial direction of the gun barrel part.

3. The quick limit locking structure according to claim 1, characterized in that: the length of the limiting shaft notch is larger than that of the base notch, so that the dovetail seat can slide and separate from the base after the limiting shaft cylindrical surface is separated from the base notch.

4. The quick limit locking structure according to claim 1, characterized in that: the base upper portion is equipped with the forked tail interface along barrel part axial, and the dovetail has been seted up along barrel part axial to the swallow tail seat bottom, and the base passes through the cooperation sliding connection of forked tail interface and dovetail with the swallow tail seat.

5. The quick limit locking structure according to claim 4, wherein: the notch is a semicircular groove and is communicated along the width direction of the dovetail joint.

6. The quick limit locking structure according to claim 4, wherein: the longitudinal groove at the tail part of the dovetail groove is communicated with the dovetail groove.

7. The quick limit locking structure according to claim 2, characterized in that: the handle boss is V type structure, sets up two along the radial symmetry of barrel part, after spacing locking, cooperates with the V type groove of swallow tail seat cylinder portion, prevents that base and swallow tail seat are not hard up.