CN211953858U

CN211953858U - Hand-operated quick bullet withdrawing device suitable for light weapon magazine

Info

Publication number: CN211953858U
Application number: CN202020181070.2U
Authority: CN
Inventors: 伍斌; 高晓婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-18
Filing date: 2020-02-18
Publication date: 2020-11-17
Anticipated expiration: 2030-02-18

Abstract

The invention provides a hand-operated quick bullet withdrawing device suitable for a light weapon magazine, which comprises a bullet withdrawing rotating wheel, a hand crank and a magazine positioning plate, wherein one end of the magazine positioning plate is consistent with the shape of the lateral wall or a part of the lateral wall of the bullet withdrawing magazine, at least one side of the front edge and the rear edge of the magazine positioning plate is provided with a positioning strip, at least one side of the upper edge and the lower edge of the magazine positioning plate is provided with a positioning block, and the relative position of the magazine positioning plate and the magazine is limited; the bullet withdrawing rotating wheel is arranged at the other end of the magazine positioning plate through a connecting rotating shaft, and a plurality of bullet withdrawing claws are uniformly distributed at the outer edge of the bullet withdrawing rotating wheel; the bullet withdrawing rotating wheel is driven by the hand crank to rotate, the bullet withdrawing claw slides through the bullet outlet of the bullet box to support the bottom of the bullet to withdraw the bullet from the bullet box. The bullet unloading device can effectively improve the efficiency and the safety of bullet unloading.

Description

Hand-operated quick bullet withdrawing device suitable for light weapon magazine

Technical Field

The invention relates to a light weapon bullet withdrawing device.

Background

At present, around the strong military target of 'can play a stick, play a victory' the training of big grabs actual combat about the whole army, the light arms shot size increases by a wide margin, but the bullet loading and unloading process relies on bare-handed operation basically, and especially the back-off process of training completion back and long-term full-load magazine change wastes time and energy, and it takes about 1 second to unload 1 bullet. The fatigue finger of the personnel is sore during continuous operation, the efficiency is further reduced, and the potential safety hazard that the triggering primer explodes to hurt the personnel exists in the operation process.

Currently, no auxiliary equipment or device is available inside the army and on the market to safely and efficiently complete the process of discharging the firearm magazine. Social businesses and individuals are continually exploring.

The chinese patent CN201621244139.1 has improved the man-machine environment by using the solution that the ejection member of the pressing device pushes against the bottom of the bullet to eject the bullets one by one from the magazine, but only one bullet can be ejected by one reciprocating motion, the ejection efficiency is not much different from the current solution that the small poking piece is used by bare hand to poke the bullet out of the magazine, and the fingers are easy to feel sore after long-term operation.

Chinese patent CN 201720988716.6 and CN201820506879.0 applied to the same company, both with the same scheme, utilize a pin to press the second bullet at the magazine opening to make the first bullet release and slide out of the bullets in the magazine one by one. Although the two bullets can slide out through one reciprocating motion, the operation efficiency is improved compared with that of bare hands, the scheme does not have additional acting force but depends on the gravity of the first bullet to slide out of the magazine after the second bullet in the magazine is pressed down, and various uncontrollable factors exist, such as the loosened bullets are clamped by the magazine embracing opening or the inner wall of the magazine cannot slide out due to normal hand shaking. In addition, the pressure of a spring of a magazine tray filled with bullets is very high, the bullets are pressed down by pins, firstly, the bullet is very laborious, and secondly, the surface paint coat of the bullet shell is easily scratched, so that the anticorrosion capacity of the bullet shell is reduced.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a hand-operated quick bullet withdrawing device suitable for a light weapon magazine, which can effectively improve the efficiency and the safety of bullet withdrawing and unloading.

The technical scheme adopted by the invention for solving the technical problems is as follows: a hand-operated quick bullet withdrawing device suitable for a light weapon magazine comprises a bullet withdrawing rotating wheel, a hand crank and a magazine positioning plate.

One end of the magazine positioning plate is consistent with the shape of the side wall or a part of the side wall of the bullet withdrawing magazine, a positioning strip is arranged on at least one side of the front edge and the rear edge of the magazine positioning plate, and a positioning block is arranged on at least one side of the upper edge and the lower edge of the magazine positioning plate to limit the relative position of the magazine positioning plate and the magazine; the bullet withdrawing rotating wheel is arranged at the other end of the magazine positioning plate through a connecting rotating shaft, and a plurality of bullet withdrawing claws are uniformly distributed at the outer edge of the bullet withdrawing rotating wheel; the bullet withdrawing rotating wheel is driven by the hand crank to rotate, the bullet withdrawing claw slides through the bullet outlet of the bullet box to support the bottom of the bullet to withdraw the bullet from the bullet box.

The hand crank and the bullet withdrawing rotating wheel are positioned on the same side of the magazine positioning plate, and the distance between the magazine positioning plate and the hand crank is larger than the thickness of the magazine.

The hand crank and the ejection rotating wheel are of an integrated structure.

4 bullet retreating claws are arranged on the bullet retreating rotating wheel in a circle.

The diameter of the ejection rotating wheel ensures that the ejection claw cannot leave the bottom of the bullet before the bullet is not completely pushed out from the bullet holding opening of the magazine, and the distance that the ejection claw extends into the magazine can contact the bottom of the first bullet of the bullet outlet and cannot contact the bottom of the second bullet simultaneously.

The bullet withdrawing claw is eccentrically arranged, and the claw tip is an acute angle, so that the arc surface at the back of the bullet withdrawing claw cannot touch the next bullet in the bullet withdrawing process.

The thickness of the bullet withdrawing claw is ensured to be capable of respectively contacting the bottoms of two rows of bullets in the magazine, and the thickness of the bullet withdrawing claw is smaller than the width of the bullet holding opening of the magazine.

The distance between the head and the tail circle centers of the hand crank is 2 times of the radius of the rebound rotating wheel.

The invention has the beneficial effects that:

(A) the structure is simple, the use is convenient, the realization is easy, 4 bullets can be withdrawn by rotating the hand crank for one circle, the bullet withdrawing process is not interrupted, only about 3 seconds is needed for withdrawing 30 bullets, and the bullet withdrawing efficiency can be greatly improved;

(B) the primer of the bullet is lower than the bottom edge of the bullet shell, so that the primer cannot be triggered when the bullet withdrawing claw acts on the bottom of the bullet, and the safety is good;

(C) the material such as plastics, acrylic, glass fiber and the like can be used for completing batch production, and the cost is lower;

(D) no additional power device is needed, the number of parts is small, the failure rate is low, and the application range is wide;

(E) the device can simulate the action of pushing a small arms into a chamber during shooting, push the bullet out of the magazine from back to front, accord with the principle of feeding the primary magazine and have no additional damage to the magazine and the ammunition;

(F) the bullet is in line with human engineering, the man-machine environment is better, and the whole process of bullet withdrawal is time-saving and labor-saving;

(G) the automatic bullet discharging device has the function of automatically stopping after the bullet discharging is finished, and after the bullet is completely discharged, the bullet discharging claw is blocked by the bullet supporting plate in the magazine and cannot rotate, so that an operator is prompted to finish the bullet discharging.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a left side view of the present invention.

Fig. 3 is a schematic diagram of the ejection of the present invention.

In the figure, 1-connecting a rotating shaft, 2-a hand crank, 3-a positioning strip, 4-a magazine positioning plate, 5-an ejection rotating wheel, 6-an ejection claw and 7-a positioning block.

Detailed Description

The present invention will be further described with reference to the following drawings and examples, which include, but are not limited to, the following examples.

The invention provides a hand-operated quick bullet withdrawing device suitable for a light weapon magazine. The shape of the magazine positioning plate is designed according to the shape of a real magazine, and the positioning plate is provided with a positioning strip and a positioning block. The magazine positioning plate limits the freedom degree of the magazine through the positioning strip and the positioning block. Usually, the left hand grasps the positioning plate and the magazine to complete positioning and clamping, and the bottom of the bullet at the bullet outlet of the magazine is positioned in front of any ejection withdrawing clawAnd (4) a section. Distance H between magazine positioning plate and hand crank₁Should be greater than the magazine thickness to avoid interference between the crank and the magazine. The bullet moving rotating wheel and the crank handle are of an integrated structure and are connected with the magazine positioning plate through the connecting rotating shaft, the bullet moving efficiency and the portability of the device are comprehensively considered, and 4 bullet moving claws are arranged on the bullet moving rotating wheel in one circle. The diameter of the ejection rotating wheel is not suitable to be too small, otherwise, the ejection claw does not completely push the bullet out of the bullet containing opening of the magazine and leaves the bottom of the bullet. The bullet withdrawing claw is eccentrically arranged, and the claw tip is an acute angle, so that the circular arc surface at the back of the bullet withdrawing claw cannot touch the next bullet in the bullet withdrawing process to increase the friction force. Because the bullets in the magazine are usually arranged in a double-row crossed manner, the thickness of the bullet withdrawing claw is H₂It is ensured that the bottoms of the two rows of cartridges are respectively contacted, while H₂The width of the bullet holding opening of the magazine is slightly smaller to avoid clamping stagnation. The excess of the ejection claw relative to the positioning block is suitable for contacting the bottom of the first bullet at the ejection outlet and simultaneously preventing the bottom of the second bullet from contacting, otherwise, the two bullets are clamped at the ejection outlet and cannot be ejected. The length of the hand crank is not suitable to be too short, the force arm is too short to make the process of bullet withdrawing laborious according to the lever principle, and the distance between the head and the tail circle centers of the hand crank is more suitable to be 2 times of the radius of the bullet withdrawing rotating wheel according to the test of a sample machine. When the bullet is withdrawn, the hand crank handle should be rotated counterclockwise along the tail of the bullet towards the direction of the bullet head, otherwise, the bullet cannot be withdrawn.

The invention provides a hand-operated quick bullet withdrawing device suitable for a light weapon magazine, which comprises the following steps:

(1) when the device is used for withdrawing a bullet, the magazine is placed on the magazine positioning plate, the back of the magazine is tightly attached to the positioning strip, the head of the magazine is tightly attached to the positioning block, and the magazine positioning plate and the magazine are gripped together;

(2) the hand crank is rotated anticlockwise to drive the bullet withdrawing rotating wheel to push the bullet in the bullet box out of the bullet box until the bullet is completely unloaded.

Following the above technical solution, as shown in fig. 1 to 3, the present embodiment provides a fast-ejection device suitable for a firearm magazine, which safely and efficiently discharges cartridges in the firearm magazine.

The invention provides a hand-operated quick bullet withdrawing device suitable for a light weapon magazine, which consists of a magazine positioning plate 4, a bullet withdrawing rotating wheel 5, a hand crank 2 and a connecting rotating shaft 1.

When the device is used for ejecting, the magazine is placed on the magazine positioning plate 4, the back of the magazine is tightly attached to the positioning strip 3, the head of the magazine is tightly attached to the positioning strip, the magazine positioning plate 4 and the magazine are gripped together, and the hand crank is rotated anticlockwise to drive the ejection rotating wheel to push the bullet in the magazine out of the magazine until the bullet is unloaded completely.

The magazine positioning plate 4 limits the freedom degree of the magazine through the positioning strip 3 and the positioning block 7, the shape of the magazine positioning plate is designed according to the appearance of the specific magazine, the positioning plate and the magazine are usually grasped by a left hand to complete positioning and clamping, and the bottom of a bullet at a bullet outlet of the magazine is positioned at the front part of any bullet withdrawing claw. Distance H between magazine positioning plate and hand crank₁Should be greater than the magazine thickness to avoid interference between the crank and the magazine.

Because the bullets in the magazine are usually arranged in a double-row crossed manner, the thickness H of the ejection claw of one circle of the ejection rotating wheel₂It is ensured that the bottoms of the two rows of cartridges are respectively contacted, while H₂Should be slightly less than the width of the ejection opening of the magazine to avoid jamming. The excessive amount of the ejection claw relative to the positioning block is not suitable to be too long, the ejection claw can contact the bottom of the first bullet at the ejection outlet and cannot contact the bottom of the second bullet at the same time, otherwise, the two bullets are clamped at the ejection outlet and cannot be ejected.

The length of the hand crank is not suitable to be too short, the force arm is too short to make the process of the ejection process more laborious according to the lever principle, and the distance between the head and the tail circle centers of the hand crank is found to be more suitable to be 2 times of the radius of the ejection rotating wheel according to actual tests. When the bullet is withdrawn, the hand crank handle should be rotated counterclockwise along the tail of the bullet towards the direction of the bullet head, otherwise, the bullet cannot be withdrawn.

After the bullet in the magazine is unloaded, the bullet withdrawing claw is contacted with the bullet supporting plate in the magazine, and the bullet withdrawing claw is limited to be incapable of rotating at the moment, so that an operator is prompted that the bullet is unloaded.

Claims

1. The utility model provides a quick bullet device that moves back of hand formula suitable for light arms magazine, includes moves back bullet runner, crank and magazine locating plate, its characterized in that: one end of the magazine positioning plate is consistent with the shape of the side wall or a part of the side wall of the bullet withdrawing magazine, a positioning strip is arranged on at least one side of the front edge and the rear edge of the magazine positioning plate, and a positioning block is arranged on at least one side of the upper edge and the lower edge of the magazine positioning plate to limit the relative position of the magazine positioning plate and the magazine; the bullet withdrawing rotating wheel is arranged at the other end of the magazine positioning plate through a connecting rotating shaft, and a plurality of bullet withdrawing claws are uniformly distributed at the outer edge of the bullet withdrawing rotating wheel; the bullet withdrawing rotating wheel is driven by the hand crank to rotate, the bullet withdrawing claw slides through the bullet outlet of the bullet box to support the bottom of the bullet to withdraw the bullet from the bullet box.

2. The hand-operated quick-action ammunition ejection device for a firearm magazine of claim 1, wherein: the hand crank and the bullet withdrawing rotating wheel are positioned on the same side of the magazine positioning plate, and the distance between the magazine positioning plate and the hand crank is larger than the thickness of the magazine.

3. The hand-operated quick-action ammunition ejection device for a firearm magazine of claim 1, wherein: the hand crank and the ejection rotating wheel are of an integrated structure.

4. The hand-operated quick-action ammunition ejection device for a firearm magazine of claim 1, wherein: 4 bullet retreating claws are arranged on the bullet retreating rotating wheel in a circle.

5. The hand-operated quick-action ammunition ejection device for a firearm magazine of claim 1, wherein: the diameter of the ejection rotating wheel ensures that the ejection claw cannot leave the bottom of the bullet before the bullet is not completely pushed out from the bullet holding opening of the magazine, and the distance that the ejection claw extends into the magazine can contact the bottom of the first bullet of the bullet outlet and cannot contact the bottom of the second bullet simultaneously.

6. The hand-operated quick-action ammunition ejection device for a firearm magazine of claim 1, wherein: the bullet withdrawing claw is eccentrically arranged, and the claw tip is an acute angle, so that the arc surface at the back of the bullet withdrawing claw cannot touch the next bullet in the bullet withdrawing process.

7. The hand-operated quick-action ammunition ejection device for a firearm magazine of claim 1, wherein: the thickness of the bullet withdrawing claw is ensured to be capable of respectively contacting the bottoms of two rows of bullets in the magazine, and the thickness of the bullet withdrawing claw is smaller than the width of the bullet holding opening of the magazine.

8. The hand-operated quick-action ammunition ejection device for a firearm magazine of claim 1, wherein: the distance between the head and the tail circle centers of the hand crank is 2 times of the radius of the rebound rotating wheel.